Legacy NMS to 1.21.2/3

# Conflicts:
#	.idea/encodings.xml
#	pom.xml

.gitignore

@@ -86,6 +86,7 @@ buildNumber.properties
 .mvn/timing.properties
 # https://github.com/takari/maven-wrapper#usage-without-binary-jar
 .mvn/wrapper/maven-wrapper.jar
+.flattened-pom.xml
 
 # Eclipse m2e generated files
 # Eclipse Core

.idea/copyright/SBDevelopment.xml

@@ -1,6 +1,6 @@
 <component name="CopyrightManager">
-  <copyright>
+    <copyright>
-    <option name="notice" value="This file is part of &amp;#36;project.name.&#10;Copyright (c) &amp;#36;originalComment.match(&quot;Copyright \(c\) (\d+)&quot;, 1, &quot;-&quot;, &quot;&amp;#36;today.year&quot;)&amp;#36;today.year inventivetalent / SBDevelopment - All Rights Reserved&#10;&#10;This program is free software: you can redistribute it and/or modify&#10;it under the terms of the GNU General Public License as published by&#10;the Free Software Foundation, either version 3 of the License, or&#10;(at your option) any later version.&#10;&#10;This program is distributed in the hope that it will be useful,&#10;but WITHOUT ANY WARRANTY; without even the implied warranty of&#10;MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the&#10;GNU General Public License for more details.&#10;&#10;You should have received a copy of the GNU General Public License&#10;along with this program.  If not, see &lt;https://www.gnu.org/licenses/&gt;." />
+        <option name="notice" value="This file is part of &amp;#36;project.name.&#10;Copyright (c) &amp;#36;originalComment.match(&quot;Copyright \(c\) (\d+)&quot;, 1, &quot;-&quot;, &quot;&amp;#36;today.year&quot;)&amp;#36;today.year inventivetalent / SBDevelopment - All Rights Reserved&#10;&#10;This program is free software: you can redistribute it and/or modify&#10;it under the terms of the GNU General Public License as published by&#10;the Free Software Foundation, either version 3 of the License, or&#10;(at your option) any later version.&#10;&#10;This program is distributed in the hope that it will be useful,&#10;but WITHOUT ANY WARRANTY; without even the implied warranty of&#10;MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the&#10;GNU General Public License for more details.&#10;&#10;You should have received a copy of the GNU General Public License&#10;along with this program.  If not, see &lt;https://www.gnu.org/licenses/&gt;." />
-    <option name="myName" value="SBDevelopment" />
+        <option name="myName" value="SBDevelopment" />
-  </copyright>
+    </copyright>
 </component>

.idea/copyright/profiles_settings.xml

@@ -0,0 +1,7 @@
+<component name="CopyrightManager">
+  <settings default="SBDevelopment">
+    <module2copyright>
+      <element module="Project Files" copyright="SBDevelopment" />
+    </module2copyright>
+  </settings>
+</component>

.idea/discord.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="DiscordProjectSettings">
+    <component name="DiscordProjectSettings">
-    <option name="show" value="PROJECT_FILES" />
+        <option name="show" value="PROJECT_FILES" />
-    <option name="description" value="" />
+        <option name="description" value="" />
-  </component>
+    </component>
 </project>

.idea/encodings.xml

@@ -1,6 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/${project.basedir}/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/${project.basedir}/src/main/resources" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/API/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/API/src/main/resources" charset="UTF-8" />
     <file url="file://$PROJECT_DIR$/Dist/src/main/java" charset="UTF-8" />
     <file url="file://$PROJECT_DIR$/Dist/src/main/resources" charset="UTF-8" />
     <file url="file://$PROJECT_DIR$/NMS-v1_12_R1/src/main/java" charset="UTF-8" />
@@ -17,8 +21,20 @@
     <file url="file://$PROJECT_DIR$/NMS-v1_17_R1/src/main/resources" charset="UTF-8" />
     <file url="file://$PROJECT_DIR$/NMS-v1_18_R2/src/main/java" charset="UTF-8" />
     <file url="file://$PROJECT_DIR$/NMS-v1_18_R2/src/main/resources" charset="UTF-8" />
-    <file url="file://$PROJECT_DIR$/NMS-v1_19_R1/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/NMS-v1_19_R3/src/main/java" charset="UTF-8" />
-    <file url="file://$PROJECT_DIR$/NMS-v1_19_R1/src/main/resources" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/NMS-v1_19_R3/src/main/resources" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/NMS-v1_20_R1/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/NMS-v1_20_R1/src/main/resources" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/NMS-v1_20_R2/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/NMS-v1_20_R2/src/main/resources" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/NMS-v1_20_R3/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/NMS-v1_20_R3/src/main/resources" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/NMS-v1_20_R4/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/NMS-v1_20_R4/src/main/resources" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/NMS-v1_21_R1/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/NMS-v1_21_R1/src/main/resources" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/NMS-v1_21_R2/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/NMS-v1_21_R2/src/main/resources" charset="UTF-8" />
     <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
     <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
   </component>

.idea/misc.xml

@@ -1,8 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ComposerSettings">
-    <execution />
-  </component>
   <component name="EntryPointsManager">
     <list size="1">
       <item index="0" class="java.lang.String" itemvalue="org.bukkit.event.EventHandler" />
@@ -17,20 +14,11 @@
     </option>
     <option name="ignoredFiles">
       <set>
-        <option value="$PROJECT_DIR$/API/pom.xml" />
+        <option value="$PROJECT_DIR$/NMS-v1_20_R1/pom.xml" />
-        <option value="$PROJECT_DIR$/Dist/pom.xml" />
-        <option value="$PROJECT_DIR$/NMS-v1_12_R1/pom.xml" />
-        <option value="$PROJECT_DIR$/NMS-v1_13_R2/pom.xml" />
-        <option value="$PROJECT_DIR$/NMS-v1_14_R1/pom.xml" />
-        <option value="$PROJECT_DIR$/NMS-v1_15_R1/pom.xml" />
-        <option value="$PROJECT_DIR$/NMS-v1_16_R3/pom.xml" />
-        <option value="$PROJECT_DIR$/NMS-v1_17_R1/pom.xml" />
-        <option value="$PROJECT_DIR$/NMS-v1_18_R2/pom.xml" />
-        <option value="$PROJECT_DIR$/NMS-v1_19_R1/pom.xml" />
       </set>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="temurin-21" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="temurin-11" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

.idea/ros.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ROSSettings">
+    <option name="rosPath" value="" />
+    <option name="workspacePath" value="" />
+    <option name="additionalSources" value="" />
+    <option name="excludedXmls" value="" />
+    <option name="licenseLinkType" value="Summary" />
+    <option name="knownKeys" value="" />
+    <option name="depSources" value="https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/base.yaml&quot;https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/python.yaml&quot;https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/ruby.yaml" />
+  </component>
+</project>

API/pom.xml

@@ -0,0 +1,178 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ This file is part of MapReflectionAPI.
+  ~ Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>MapReflectionAPI</artifactId>
+        <groupId>tech.sbdevelopment</groupId>
+        <version>${revision}</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>MapReflectionAPI-API</artifactId>
+
+    <properties>
+        <jdk.version>11</jdk.version>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <release>${jdk.version}</release>
+                    <annotationProcessorPaths>
+                        <path>
+                            <groupId>org.projectlombok</groupId>
+                            <artifactId>lombok</artifactId>
+                            <version>1.18.28</version>
+                        </path>
+                    </annotationProcessorPaths>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.5.0</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                        <configuration>
+                            <createDependencyReducedPom>false</createDependencyReducedPom>
+                            <relocations>
+                                <relocation>
+                                    <pattern>com.bergerkiller.bukkit.common</pattern>
+                                    <shadedPattern>tech.sbdevelopment.mapreflectionapi.libs.bkcommonlib</shadedPattern>
+                                </relocation>
+                                <relocation>
+                                    <pattern>org.bstats</pattern>
+                                    <shadedPattern>tech.sbdevelopment.mapreflectionapi.libs.bstats</shadedPattern>
+                                </relocation>
+                            </relocations>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <groupId>org.projectlombok</groupId>
+                <artifactId>lombok-maven-plugin</artifactId>
+                <version>1.18.20.0</version>
+                <configuration>
+                    <sourceDirectory>${project.basedir}/src/main/java</sourceDirectory>
+                    <outputDirectory>${maven.lombok.delombok-target}</outputDirectory>
+                    <addOutputDirectory>false</addOutputDirectory>
+                </configuration>
+                <executions>
+                    <execution>
+                        <phase>generate-sources</phase>
+                        <goals>
+                            <goal>delombok</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-javadoc-plugin</artifactId>
+                <version>3.5.0</version>
+                <configuration>
+                    <release>${jdk.version}</release>
+                    <sourcepath>${maven.lombok.delombok-target}</sourcepath>
+                    <sourceFileExcludes>
+                        <sourceFileExclude>**/com/bergerkiller/bukkit/common/io/*.java</sourceFileExclude>
+                        <sourceFileExclude>**/com/bergerkiller/bukkit/common/map/*.java</sourceFileExclude>
+                        <sourceFileExclude>**/com/bergerkiller/bukkit/common/map/color/*.java</sourceFileExclude>
+                        <sourceFileExclude>**/tech/sbdevelopment/mapreflectionapi/*.java</sourceFileExclude>
+                        <sourceFileExclude>**/tech/sbdevelopment/mapreflectionapi/cmd/*.java</sourceFileExclude>
+                        <sourceFileExclude>**/tech/sbdevelopment/mapreflectionapi/managers/*.java</sourceFileExclude>
+                        <sourceFileExclude>**/tech/sbdevelopment/mapreflectionapi/utils/*.java</sourceFileExclude>
+                        <sourceFileExclude>**/tech/sbdevelopment/mapreflectionapi/listeners/*.java</sourceFileExclude>
+                    </sourceFileExcludes>
+                </configuration>
+            </plugin>
+        </plugins>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+                <includes>
+                    <include>plugin.yml</include>
+                </includes>
+            </resource>
+            <resource>
+                <directory>src/main/resources</directory>
+                <excludes>
+                    <exclude>plugin.yml</exclude>
+                </excludes>
+            </resource>
+        </resources>
+    </build>
+
+    <repositories>
+        <repository>
+            <id>spigot-repo</id>
+            <url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>
+        </repository>
+        <repository>
+            <id>MG-Dev Jenkins CI Maven Repository</id>
+            <url>https://ci.mg-dev.eu/plugin/repository/everything</url>
+        </repository>
+        <repository>
+            <id>dmulloy2-repo</id>
+            <url>https://repo.dmulloy2.net/repository/public/</url>
+        </repository>
+    </repositories>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.18.28</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.bstats</groupId>
+            <artifactId>bstats-bukkit</artifactId>
+            <version>3.0.2</version>
+            <scope>compile</scope>
+        </dependency>
+
+        <!-- Libraries below are provided by Spigot -->
+        <dependency>
+            <groupId>org.jetbrains</groupId>
+            <artifactId>annotations-java5</artifactId>
+            <version>23.0.0</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>io.netty</groupId>
+            <artifactId>netty-transport</artifactId>
+            <version>4.1.77.Final</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

API/src/main/java/com/bergerkiller/bukkit/common/io/BitInputStream.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

API/src/main/java/com/bergerkiller/bukkit/common/io/BitPacket.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

API/src/main/java/com/bergerkiller/bukkit/common/map/MapColorPalette.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -27,8 +27,6 @@ import java.awt.*;
 import java.io.InputStream;
 import java.util.Arrays;
 
-import static com.cryptomorin.xseries.reflection.XReflection.supports;
-
 /**
  * Additional functionality on top of Bukkit's MapPalette
  */
@@ -52,12 +50,14 @@ public class MapColorPalette {
             MCSDBubbleFormat bubbleData = new MCSDBubbleFormat();
             try {
                 String bub_path_postfix;
-                if (supports(17)) {
+                if (ReflectionUtil.supports(17)) {
                     bub_path_postfix = "map_1_17.bub";
-                } else if (supports(16)) {
+                } else if (ReflectionUtil.supports(16)) {
                     bub_path_postfix = "map_1_16.bub";
-                } else {
+                } else if (ReflectionUtil.supports(12)) {
                     bub_path_postfix = "map_1_12.bub";
+                } else {
+                    bub_path_postfix = "map_1_8_8.bub";
                 }
                 String bub_path = "/tech/sbdevelopment/mapreflectionapi/libs/bkcommonlib/internal/resources/map/" + bub_path_postfix;
                 InputStream input = MapColorPalette.class.getResourceAsStream(bub_path);

API/src/main/java/com/bergerkiller/bukkit/common/map/color/MCSDGenBukkit.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

API/src/main/java/com/bergerkiller/bukkit/common/map/color/MCSDWebbingCodec.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

API/src/main/java/com/bergerkiller/bukkit/common/map/color/MapColorSpaceData.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

API/src/main/java/tech/sbdevelopment/mapreflectionapi/MapReflectionAPI.java

@@ -30,15 +30,15 @@ import tech.sbdevelopment.mapreflectionapi.listeners.MapListener;
 import tech.sbdevelopment.mapreflectionapi.listeners.PacketListener;
 import tech.sbdevelopment.mapreflectionapi.managers.Configuration;
 import tech.sbdevelopment.mapreflectionapi.utils.MainUtil;
+import tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil;
 import tech.sbdevelopment.mapreflectionapi.utils.UpdateManager;
 
 import java.util.logging.Level;
 
-import static com.cryptomorin.xseries.reflection.XReflection.supports;
-
 public class MapReflectionAPI extends JavaPlugin {
     private static MapReflectionAPI instance;
     private static MapManager mapManager;
+    private static PacketListener packetListener;
 
     /**
      * Get the plugin instance
@@ -68,8 +68,8 @@ public class MapReflectionAPI extends JavaPlugin {
         getLogger().info("MapReflectionAPI v" + getDescription().getVersion());
         getLogger().info("Made by © Copyright SBDevelopment 2023");
 
-        if (!supports(12)) {
+        if (!ReflectionUtil.supports(12)) {
-            getLogger().severe("MapReflectionAPI only supports Minecraft 1.12 - 1.20.5!");
+            getLogger().severe("MapReflectionAPI only supports Minecraft 1.12 - 1.19.4!");
             Bukkit.getPluginManager().disablePlugin(this);
             return;
         }
@@ -90,11 +90,26 @@ public class MapReflectionAPI extends JavaPlugin {
         getLogger().info("Loading the commands...");
         getCommand("mapmanager").setExecutor(new MapManagerCMD());
 
-        getLogger().info("Loading the map manager...");
+        try {
-        mapManager = new MapManager();
+            packetListener = PacketListener.construct(this);
+        } catch (IllegalStateException e) {
+            getLogger().log(Level.SEVERE, e.getMessage(), e);
+            Bukkit.getPluginManager().disablePlugin(this);
+            return;
+        }
+        packetListener.init(this);
+
+        try {
+            mapManager = new MapManager(this);
+        } catch (IllegalStateException e) {
+            getLogger().log(Level.SEVERE, e.getMessage(), e);
+            Bukkit.getPluginManager().disablePlugin(this);
+            return;
+        }
 
         if (Configuration.getInstance().isAllowVanilla()) {
-            getLogger().info("Vanilla Maps are allowed. Discovering occupied Map IDs...");
+            getLogger().info("Vanilla Maps are allowed!");
+            getLogger().info("Discovering occupied Map IDs...");
             int occupiedIDs = 0;
             for (int s = 0; s < Short.MAX_VALUE; s++) {
                 try {
@@ -114,9 +129,8 @@ public class MapReflectionAPI extends JavaPlugin {
 
         getLogger().info("Registering the listeners...");
         Bukkit.getPluginManager().registerEvents(new MapListener(), this);
-        Bukkit.getPluginManager().registerEvents(new PacketListener(), this);
 
-        getLogger().info("Loading metrics...");
+        getLogger().info("Enabling metrics...");
         Metrics metrics = new Metrics(this, 16033);
         metrics.addCustomChart(new SingleLineChart("managed_maps", () -> mapManager.getManagedMapsCount()));
 
@@ -168,6 +182,9 @@ public class MapReflectionAPI extends JavaPlugin {
 
     @Override
     public void onDisable() {
+        getLogger().info("Disabling the packet handler...");
+        if (packetListener != null) Bukkit.getOnlinePlayers().forEach(p -> packetListener.removePlayer(p));
+
         getLogger().info("MapReflectionAPI is disabled!");
 
         instance = null;

API/src/main/java/tech/sbdevelopment/mapreflectionapi/api/AbstractMapWrapper.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

API/src/main/java/tech/sbdevelopment/mapreflectionapi/api/ArrayImage.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

API/src/main/java/tech/sbdevelopment/mapreflectionapi/api/IMapController.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

API/src/main/java/tech/sbdevelopment/mapreflectionapi/api/MapController.java

@@ -19,6 +19,7 @@
 package tech.sbdevelopment.mapreflectionapi.api;
 
 import org.bukkit.OfflinePlayer;
+import org.bukkit.World;
 import org.bukkit.entity.ItemFrame;
 import org.bukkit.entity.Player;
 
@@ -116,4 +117,13 @@ public interface MapController extends IMapController {
      * @param frame  {@link ItemFrame} to clear
      */
     void clearFrame(Player player, ItemFrame frame);
+
+    /**
+     * Get an {@link ItemFrame} by its entity ID
+     *
+     * @param world    The world the {@link ItemFrame} is in
+     * @param entityId Entity-ID of the {@link ItemFrame}
+     * @return The found {@link ItemFrame}, or <code>null</code>
+     */
+    ItemFrame getItemFrameById(World world, int entityId);
 }

API/src/main/java/tech/sbdevelopment/mapreflectionapi/api/MapManager.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -18,29 +18,47 @@
 
 package tech.sbdevelopment.mapreflectionapi.api;
 
+import org.bukkit.Bukkit;
 import org.bukkit.OfflinePlayer;
-import org.bukkit.World;
-import org.bukkit.entity.ItemFrame;
 import org.bukkit.entity.Player;
+import org.bukkit.plugin.java.JavaPlugin;
 import org.jetbrains.annotations.Nullable;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
 import tech.sbdevelopment.mapreflectionapi.api.exceptions.MapLimitExceededException;
 import tech.sbdevelopment.mapreflectionapi.managers.Configuration;
-import tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil;
 
 import java.awt.image.BufferedImage;
+import java.lang.reflect.InvocationTargetException;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
 import java.util.concurrent.CopyOnWriteArrayList;
 
-import static com.cryptomorin.xseries.reflection.XReflection.*;
-
 /**
  * The {@link MapManager} manages all the maps. It also contains functions for wrapping.
  */
 public class MapManager {
     protected final Set<Integer> occupiedIds = new HashSet<>();
     protected final List<MapWrapper> managedMaps = new CopyOnWriteArrayList<>();
+    private final Class<?> wrapperClass;
+
+    public MapManager(JavaPlugin plugin) throws IllegalStateException {
+        String packageName = Bukkit.getServer().getClass().getPackage().getName();
+        String version = packageName.substring(packageName.lastIndexOf('.') + 1);
+
+        plugin.getLogger().info("Enabling MapManager for " + version + "...");
+
+        try {
+            final Class<?> clazz = Class.forName("tech.sbdevelopment.mapreflectionapi.nms.MapWrapper_" + version);
+            if (MapWrapper.class.isAssignableFrom(clazz)) {
+                wrapperClass = clazz;
+            } else {
+                throw new IllegalStateException("Plugin corrupted! Detected invalid MapWrapper class.");
+            }
+        } catch (Exception ex) {
+            throw new IllegalStateException("This Spigot version (" + version + ") is not supported! Contact the developer to get support.");
+        }
+    }
 
     /**
      * Get the amount of maps managed by the plugin
@@ -129,9 +147,15 @@ public class MapManager {
      * @return The wrapper
      */
     private MapWrapper wrapNewImage(ArrayImage image) {
-        MapWrapper wrapper = new MapWrapper(image);
+        try {
-        managedMaps.add(wrapper);
+            MapWrapper wrapper = (MapWrapper) wrapperClass.getDeclaredConstructor(ArrayImage.class).newInstance(image);
-        return wrapper;
+            managedMaps.add(wrapper);
+            return wrapper;
+        } catch (NoSuchMethodException | InstantiationException | IllegalAccessException |
+                 InvocationTargetException e) {
+            e.printStackTrace();
+            return null;
+        }
     }
 
     /**
@@ -177,30 +201,6 @@ public class MapManager {
         return null;
     }
 
-    /**
-     * Get an {@link ItemFrame} by its entity ID
-     *
-     * @param world    The world the {@link ItemFrame} is in
-     * @param entityId Entity-ID of the {@link ItemFrame}
-     * @return The found {@link ItemFrame}, or <code>null</code>
-     */
-    public ItemFrame getItemFrameById(World world, int entityId) {
-        Object worldHandle = ReflectionUtil.getHandle(world);
-        Object nmsEntity = ReflectionUtil.callMethod(worldHandle, supports(18) ? "a" : "getEntity", entityId);
-        if (nmsEntity == null) return null;
-
-        Object craftEntity = ReflectionUtil.callMethod(nmsEntity, "getBukkitEntity");
-        if (craftEntity == null) return null;
-
-        Class<?> itemFrameClass = getNMSClass("world.entity.decoration", "EntityItemFrame");
-        if (itemFrameClass == null) return null;
-
-        if (craftEntity.getClass().isAssignableFrom(itemFrameClass))
-            return (ItemFrame) itemFrameClass.cast(craftEntity);
-
-        return null;
-    }
-
     /**
      * Register an occupied map ID
      *

API/src/main/java/tech/sbdevelopment/mapreflectionapi/api/MapWrapper.java

@@ -16,31 +16,27 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-package tech.sbdevelopment.mapreflectionapi.api.events.types;
+package tech.sbdevelopment.mapreflectionapi.api;
 
-import lombok.Getter;
+/**
-import lombok.NoArgsConstructor;
+ * A {@link MapWrapper} wraps one image.
-import org.bukkit.event.HandlerList;
+ */
-
+public abstract class MapWrapper extends AbstractMapWrapper {
-@NoArgsConstructor
+    protected ArrayImage content;
-public class Event extends org.bukkit.event.Event {
-    public Event(boolean isAsync) {
-        super(isAsync);
-    }
 
     /**
-     * A list of EventHandlers listening to this event.
+     * Construct a new {@link MapWrapper}
-     */
-    @Getter
-    private static final HandlerList handlerList = new HandlerList();
-
-    /**
-     * Get the EventHandlers listening to this event.
      *
-     * @return The EventHandlers listening to this event.
+     * @param image The {@link ArrayImage} to wrap
      */
-    @Override
+    public MapWrapper(ArrayImage image) {
-    public HandlerList getHandlers() {
+        this.content = image;
-        return handlerList;
     }
+
+    public ArrayImage getContent() {
+        return content;
+    }
+
+    @Override
+    public abstract MapController getController();
 }

API/src/main/java/tech/sbdevelopment/mapreflectionapi/api/MultiMapController.java

@@ -86,7 +86,7 @@ public interface MultiMapController extends IMapController {
      * Show this {@link MultiMapController} in {@link ItemFrame}s
      *
      * @param player         {@link Player} that will be able to see the maps
-     * @param entityIdMatrix 2D-Array of entity-IDs of the {@link ItemFrame}s (<code>int[rows][columns]</code>)
+     * @param entityIdMatrix 2D-Array of entity-IDs of the {@link ItemFrame}s (<code>int[width][height]</code>)
      * @see MapController#showInFrame(Player, int)
      */
     void showInFrames(Player player, Integer[][] entityIdMatrix);
@@ -95,7 +95,7 @@ public interface MultiMapController extends IMapController {
      * Show this {@link MultiMapController} in {@link ItemFrame}s
      *
      * @param player         {@link Player} that will be able to see the maps
-     * @param entityIdMatrix 2D-Array of entity-IDs of the {@link ItemFrame}s (<code>int[rows][columns]</code>)
+     * @param entityIdMatrix 2D-Array of entity-IDs of the {@link ItemFrame}s (<code>int[width][height]</code>)
      * @param callable       {@link DebugCallable} which will be called to display debug information, or <code>null</code>
      * @see MapController#showInFrame(Player, int, String)
      */
@@ -105,7 +105,7 @@ public interface MultiMapController extends IMapController {
      * Show this {@link MultiMapController} in {@link ItemFrame}s
      *
      * @param player          {@link Player} that will be able to see the maps
-     * @param itemFrameMatrix 2D-Array of {@link ItemFrame}s (<code>ItemFrame[rows][columns]</code>)
+     * @param itemFrameMatrix 2D-Array of {@link ItemFrame}s (<code>ItemFrame[width][height]</code>)
      * @param force           if <code>false</code>, the map will not be shown if there is not Map-Item in the ItemFrames
      * @see MapController#showInFrame(Player, ItemFrame, boolean)
      */
@@ -115,7 +115,7 @@ public interface MultiMapController extends IMapController {
      * Show this {@link MultiMapController} in {@link ItemFrame}s
      *
      * @param player          {@link Player} that will be able to see the maps
-     * @param itemFrameMatrix 2D-Array of {@link ItemFrame}s (<code>ItemFrame[rows][columns]</code>)
+     * @param itemFrameMatrix 2D-Array of {@link ItemFrame}s (<code>ItemFrame[width][height]</code>)
      * @see MapController#showInFrame(Player, ItemFrame)
      */
     void showInFrames(Player player, ItemFrame[][] itemFrameMatrix);
@@ -124,7 +124,7 @@ public interface MultiMapController extends IMapController {
      * Clear the frames
      *
      * @param player         {@link Player} that will be able to see the cleared frames
-     * @param entityIdMatrix 2D-Array of entity-IDs of the {@link ItemFrame}s (<code>int[rows][columns]</code>)
+     * @param entityIdMatrix 2D-Array of entity-IDs of the {@link ItemFrame}s (<code>int[width][height]</code>)
      */
     void clearFrames(Player player, Integer[][] entityIdMatrix);
 
@@ -132,7 +132,7 @@ public interface MultiMapController extends IMapController {
      * Clear the frames
      *
      * @param player          {@link Player} that will be able to see the cleared frames
-     * @param itemFrameMatrix 2D-Array of {@link ItemFrame}s (<code>ItemFrame[rows][columns]</code>)
+     * @param itemFrameMatrix 2D-Array of {@link ItemFrame}s (<code>ItemFrame[width][height]</code>)
      */
     void clearFrames(Player player, ItemFrame[][] itemFrameMatrix);
 
@@ -144,11 +144,11 @@ public interface MultiMapController extends IMapController {
          * Called to get debug information for a frame
          *
          * @param controller the {@link MapController}
-         * @param row        Row of the current frame
+         * @param x          X-Position of the current frame
-         * @param column     Column of the current frame
+         * @param y          Y-Position of the current frame
          * @return {@link String} to show when a player looks at the map, or <code>null</code>
          * @see MapController#showInFrame(Player, int, String)
          */
-        String call(MapController controller, int row, int column);
+        String call(MapController controller, int x, int y);
     }
 }

API/src/main/java/tech/sbdevelopment/mapreflectionapi/api/MultiMapWrapper.java

@@ -25,75 +25,52 @@ import org.jetbrains.annotations.NotNull;
 import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
 import tech.sbdevelopment.mapreflectionapi.api.exceptions.MapLimitExceededException;
 
+import java.awt.*;
 import java.awt.image.BufferedImage;
 import java.util.HashSet;
 import java.util.Set;
 import java.util.UUID;
 
+import static tech.sbdevelopment.mapreflectionapi.utils.MainUtil.validateArrayDimensions;
+
 /**
  * A {@link MultiMapWrapper} wraps one image split in pieces.
  */
 public class MultiMapWrapper extends AbstractMapWrapper {
     private final MapWrapper[][] wrapperMatrix;
 
-    /**
-     * Creates a new {@link MultiMapWrapper} from the given image.
-     * The image will be split into the given amount of rows and columns.
-     *
-     * @param image   The image to wrap
-     * @param rows    The amount of rows
-     * @param columns The amount of columns
-     */
     public MultiMapWrapper(BufferedImage image, int rows, int columns) {
-        this(splitImage(image, rows, columns));
+        this(splitImage(image, columns, rows));
     }
 
-    /**
-     * Creates a new {@link MultiMapWrapper} from the given image.
-     * The image will be split into the given amount of rows and columns.
-     *
-     * @param image   The image to wrap
-     * @param rows    The amount of rows
-     * @param columns The amount of columns
-     */
     public MultiMapWrapper(ArrayImage image, int rows, int columns) {
-        this(splitImage(image.toBuffered(), rows, columns));
+        this(splitImage(image.toBuffered(), columns, rows));
     }
 
-    /**
+    public MultiMapWrapper(ArrayImage[][] imageMatrix) {
-     * Creates a new {@link MultiMapWrapper} from the given image.
-     *
-     * @param imageMatrix The image matrix to wrap
-     */
-    protected MultiMapWrapper(ArrayImage[][] imageMatrix) {
         wrapperMatrix = new MapWrapper[imageMatrix.length][imageMatrix[0].length];
 
-        for (int row = 0; row < imageMatrix.length; row++) {
+        for (int x = 0; x < imageMatrix.length; x++) {
-            if (imageMatrix[row].length != imageMatrix[0].length) {
+            if (imageMatrix[x].length != imageMatrix[0].length) {
                 throw new IllegalArgumentException("An image in a MultiMapWrapper is not rectangular!");
             }
 
-            for (int column = 0; column < imageMatrix[row].length; column++) {
+            for (int y = 0; y < imageMatrix[x].length; y++) {
-                wrapperMatrix[row][column] = MapReflectionAPI.getMapManager().wrapImage(imageMatrix[row][column]);
+                wrapperMatrix[x][y] = MapReflectionAPI.getMapManager().wrapImage(imageMatrix[x][y]);
             }
         }
     }
 
-    /**
+    public MultiMapWrapper(BufferedImage[][] imageMatrix) {
-     * Creates a new {@link MultiMapWrapper} from the given image.
-     *
-     * @param imageMatrix The image matrix to wrap
-     */
-    protected MultiMapWrapper(BufferedImage[][] imageMatrix) {
         wrapperMatrix = new MapWrapper[imageMatrix.length][imageMatrix[0].length];
 
-        for (int row = 0; row < imageMatrix.length; row++) {
+        for (int x = 0; x < imageMatrix.length; x++) {
-            if (imageMatrix[row].length != imageMatrix[0].length) {
+            if (imageMatrix[x].length != imageMatrix[0].length) {
                 throw new IllegalArgumentException("An image in a MultiMapWrapper is not rectangular!");
             }
 
-            for (int column = 0; column < imageMatrix[row].length; column++) {
+            for (int y = 0; y < imageMatrix[x].length; y++) {
-                wrapperMatrix[row][column] = MapReflectionAPI.getMapManager().wrapImage(imageMatrix[row][column]);
+                wrapperMatrix[x][y] = MapReflectionAPI.getMapManager().wrapImage(imageMatrix[x][y]);
             }
         }
     }
@@ -140,10 +117,10 @@ public class MultiMapWrapper extends AbstractMapWrapper {
 
         @Override
         public void update(@NotNull ArrayImage content) {
-            ArrayImage[][] split = splitImage(content.toBuffered(), wrapperMatrix.length, wrapperMatrix[0].length);
+            ArrayImage[][] split = splitImage(content.toBuffered(), wrapperMatrix[0].length, wrapperMatrix.length);
-            for (int row = 0; row < wrapperMatrix.length; row++) {
+            for (int x = 0; x < wrapperMatrix.length; x++) {
-                for (int column = 0; column < wrapperMatrix[row].length; column++) {
+                for (int y = 0; y < wrapperMatrix[x].length; y++) {
-                    wrapperMatrix[row][column].getController().update(split[row][column]);
+                    wrapperMatrix[x][y].getController().update(split[x][y]);
                 }
             }
         }
@@ -173,27 +150,33 @@ public class MultiMapWrapper extends AbstractMapWrapper {
 
         @Override
         public void showInFrames(Player player, Integer[][] entityIdMatrix) {
-            for (int row = 0; row < entityIdMatrix.length; row++) {
+            validateArrayDimensions(wrapperMatrix, entityIdMatrix);
-                for (int column = 0; column < entityIdMatrix[row].length; column++) {
+
-                    wrapperMatrix[row][column].getController().showInFrame(player, entityIdMatrix[row][column]);
+            for (int x = 0; x < entityIdMatrix.length; x++) {
+                for (int y = 0; y < entityIdMatrix[x].length; y++) {
+                    wrapperMatrix[y][x].getController().showInFrame(player, entityIdMatrix[x][wrapperMatrix.length - 1 - y]);
                 }
             }
         }
 
         @Override
         public void showInFrames(Player player, Integer[][] entityIdMatrix, DebugCallable callable) {
-            for (int row = 0; row < entityIdMatrix.length; row++) {
+            validateArrayDimensions(wrapperMatrix, entityIdMatrix);
-                for (int column = 0; column < entityIdMatrix[row].length; column++) {
+
-                    wrapperMatrix[row][column].getController().showInFrame(player, entityIdMatrix[row][column], callable.call(wrapperMatrix[row][column].getController(), row, column));
+            for (int x = 0; x < entityIdMatrix.length; x++) {
+                for (int y = 0; y < entityIdMatrix[x].length; y++) {
+                    wrapperMatrix[y][x].getController().showInFrame(player, entityIdMatrix[x][wrapperMatrix.length - 1 - y], callable.call(wrapperMatrix[y][x].getController(), x, y));
                 }
             }
         }
 
         @Override
         public void showInFrames(Player player, ItemFrame[][] itemFrameMatrix, boolean force) {
-            for (int row = 0; row < itemFrameMatrix.length; row++) {
+            validateArrayDimensions(wrapperMatrix, itemFrameMatrix);
-                for (int column = 0; column < itemFrameMatrix[row].length; column++) {
+
-                    wrapperMatrix[row][column].getController().showInFrame(player, itemFrameMatrix[row][column], force);
+            for (int x = 0; x < itemFrameMatrix.length; x++) {
+                for (int y = 0; y < itemFrameMatrix[x].length; y++) {
+                    wrapperMatrix[y][x].getController().showInFrame(player, itemFrameMatrix[x][wrapperMatrix.length - 1 - y], force);
                 }
             }
         }
@@ -205,47 +188,47 @@ public class MultiMapWrapper extends AbstractMapWrapper {
 
         @Override
         public void clearFrames(Player player, Integer[][] entityIdMatrix) {
-            for (int row = 0; row < entityIdMatrix.length; row++) {
+            validateArrayDimensions(wrapperMatrix, entityIdMatrix);
-                for (int column = 0; column < entityIdMatrix[row].length; column++) {
+
-                    wrapperMatrix[row][column].getController().clearFrame(player, entityIdMatrix[row][column]);
+            for (int x = 0; x < entityIdMatrix.length; x++) {
+                for (int y = 0; y < entityIdMatrix[x].length; y++) {
+                    wrapperMatrix[y][x].getController().clearFrame(player, entityIdMatrix[x][y]);
                 }
             }
         }
 
         @Override
         public void clearFrames(Player player, ItemFrame[][] itemFrameMatrix) {
-            for (int row = 0; row < itemFrameMatrix.length; row++) {
+            validateArrayDimensions(wrapperMatrix, itemFrameMatrix);
-                for (int column = 0; column < itemFrameMatrix[row].length; column++) {
+
-                    wrapperMatrix[row][column].getController().clearFrame(player, itemFrameMatrix[row][column]);
+            for (int x = 0; x < itemFrameMatrix.length; x++) {
+                for (int y = 0; y < itemFrameMatrix[x].length; y++) {
+                    wrapperMatrix[y][x].getController().clearFrame(player, itemFrameMatrix[x][y]);
                 }
             }
         }
     };
 
-    /**
+    /*
-     * Splits a BufferedImage into a matrix of ArrayImages.
+     * Modified Method from http://kalanir.blogspot.de/2010/02/how-to-split-image-into-chunks-java.html
-     *
-     * @param image   The image to split
-     * @param rows    The number of rows
-     * @param columns The number of columns
-     * @return The matrix of ArrayImages
      */
-    private static ArrayImage[][] splitImage(final BufferedImage image, final int rows, final int columns) {
+    private static ArrayImage[][] splitImage(final BufferedImage image, final int columns, final int rows) {
         int chunkWidth = image.getWidth() / columns;
         int chunkHeight = image.getHeight() / rows;
 
         ArrayImage[][] images = new ArrayImage[rows][columns];
+        for (int x = 0; x < rows; x++) {
+            for (int y = 0; y < columns; y++) {
+                BufferedImage raw = new BufferedImage(chunkWidth, chunkHeight, image.getType());
 
-        for (int i = 0; i < rows; i++) {
+                Graphics2D gr = raw.createGraphics();
-            for (int j = 0; j < columns; j++) {
+                gr.drawImage(image, 0, 0, chunkWidth, chunkHeight, chunkWidth * y, chunkHeight * x, chunkWidth * y + chunkWidth, chunkHeight * x + chunkHeight, null);
-                int x = j * chunkWidth;
+                gr.dispose();
-                int y = i * chunkHeight;
 
-                BufferedImage raw = image.getSubimage(x, y, chunkWidth, chunkHeight);
+                images[x][y] = new ArrayImage(raw);
-                images[i][j] = new ArrayImage(raw);
+                raw.flush();
             }
         }
-
         return images;
     }
 

API/src/main/java/tech/sbdevelopment/mapreflectionapi/api/events/CreateInventoryMapUpdateEvent.java

@@ -20,40 +20,53 @@ package tech.sbdevelopment.mapreflectionapi.api.events;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
+import lombok.Setter;
+import org.bukkit.Material;
 import org.bukkit.entity.Player;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
 import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
 import tech.sbdevelopment.mapreflectionapi.api.MapWrapper;
-import tech.sbdevelopment.mapreflectionapi.api.events.types.CancellableEvent;
-import tech.sbdevelopment.mapreflectionapi.utils.XMaterial;
 
 /**
  * This event gets fired when a map in the creative inventory gets updated
  */
 @RequiredArgsConstructor
 @Getter
-public class CreativeInventoryMapUpdateEvent extends CancellableEvent {
+public class CreateInventoryMapUpdateEvent extends Event implements Cancellable {
+    private static final HandlerList handlerList = new HandlerList();
+    @Setter
+    private boolean cancelled;
+
     private final Player player;
     private final int slot;
     private final ItemStack item;
     private MapWrapper mapWrapper;
 
     /**
-     * Construct a new {@link CreativeInventoryMapUpdateEvent}
+     * Construct a new {@link CreateInventoryMapUpdateEvent}
      *
      * @param player  The player whose inventory is updated
      * @param slot    The new slot
      * @param item    The item in the new slot
      * @param isAsync Is this event called async?
      */
-    public CreativeInventoryMapUpdateEvent(Player player, int slot, ItemStack item, boolean isAsync) {
+    public CreateInventoryMapUpdateEvent(Player player, int slot, ItemStack item, boolean isAsync) {
         super(isAsync);
         this.player = player;
         this.slot = slot;
         this.item = item;
     }
 
+    @Override
+    public @NotNull HandlerList getHandlers() {
+        return handlerList;
+    }
+
     /**
      * Get the {@link MapWrapper} of the map of this event
      *
@@ -63,7 +76,7 @@ public class CreativeInventoryMapUpdateEvent extends CancellableEvent {
     public MapWrapper getMapWrapper() {
         if (mapWrapper == null) {
             if (item == null) return null;
-            if (!XMaterial.FILLED_MAP.isSimilar(item)) return null;
+            if (item.getType() != Material.MAP) return null;
             mapWrapper = MapReflectionAPI.getMapManager().getWrapperForId(player, item.getDurability());
         }
 

API/src/main/java/tech/sbdevelopment/mapreflectionapi/api/events/MapCancelEvent.java

@@ -20,15 +20,23 @@ package tech.sbdevelopment.mapreflectionapi.api.events;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
+import lombok.Setter;
 import org.bukkit.entity.Player;
-import tech.sbdevelopment.mapreflectionapi.api.events.types.CancellableEvent;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
+import org.jetbrains.annotations.NotNull;
 
 /**
  * This event gets fired when a map creation is cancelled
  */
 @RequiredArgsConstructor
 @Getter
-public class MapCancelEvent extends CancellableEvent {
+public class MapCancelEvent extends Event implements Cancellable {
+    private static final HandlerList handlerList = new HandlerList();
+    @Setter
+    private boolean cancelled;
+
     private final Player player;
     private final int id;
 
@@ -44,4 +52,9 @@ public class MapCancelEvent extends CancellableEvent {
         this.player = player;
         this.id = id;
     }
+
+    @Override
+    public @NotNull HandlerList getHandlers() {
+        return handlerList;
+    }
 }

API/src/main/java/tech/sbdevelopment/mapreflectionapi/api/events/MapContentUpdateEvent.java

@@ -21,9 +21,11 @@ package tech.sbdevelopment.mapreflectionapi.api.events;
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
 import lombok.Setter;
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
+import org.jetbrains.annotations.NotNull;
 import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
 import tech.sbdevelopment.mapreflectionapi.api.MapWrapper;
-import tech.sbdevelopment.mapreflectionapi.api.events.types.Event;
 
 /**
  * This event gets fired when the content of a {@link MapWrapper} is updated
@@ -31,6 +33,8 @@ import tech.sbdevelopment.mapreflectionapi.api.events.types.Event;
 @RequiredArgsConstructor
 @Getter
 public class MapContentUpdateEvent extends Event {
+    private static final HandlerList handlerList = new HandlerList();
+
     private final MapWrapper wrapper;
     private final ArrayImage content;
     @Setter
@@ -48,4 +52,9 @@ public class MapContentUpdateEvent extends Event {
         this.wrapper = wrapper;
         this.content = content;
     }
+
+    @Override
+    public @NotNull HandlerList getHandlers() {
+        return handlerList;
+    }
 }

API/src/main/java/tech/sbdevelopment/mapreflectionapi/api/events/MapInteractEvent.java

@@ -20,20 +20,28 @@ package tech.sbdevelopment.mapreflectionapi.api.events;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
+import lombok.Setter;
 import org.bukkit.entity.ItemFrame;
 import org.bukkit.entity.Player;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
 import org.bukkit.util.Vector;
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
 import tech.sbdevelopment.mapreflectionapi.api.MapWrapper;
-import tech.sbdevelopment.mapreflectionapi.api.events.types.CancellableEvent;
 
 /**
  * This event gets fired when a player interact with a map
  */
 @RequiredArgsConstructor
 @Getter
-public class MapInteractEvent extends CancellableEvent {
+public class MapInteractEvent extends Event implements Cancellable {
+    private static final HandlerList handlerList = new HandlerList();
+    @Setter
+    private boolean cancelled;
+
     private final Player player;
     private final int entityID;
     private final int action;
@@ -61,6 +69,11 @@ public class MapInteractEvent extends CancellableEvent {
         this.hand = hand;
     }
 
+    @Override
+    public @NotNull HandlerList getHandlers() {
+        return handlerList;
+    }
+
     /**
      * Get the {@link ItemFrame} the map is in
      *
@@ -68,8 +81,10 @@ public class MapInteractEvent extends CancellableEvent {
      */
     @Nullable
     public ItemFrame getFrame() {
+        if (getMapWrapper() == null) return null;
+
         if (frame == null) {
-            frame = MapReflectionAPI.getMapManager().getItemFrameById(player.getWorld(), entityID);
+            frame = getMapWrapper().getController().getItemFrameById(player.getWorld(), entityID);
         }
         return frame;
     }
@@ -81,11 +96,10 @@ public class MapInteractEvent extends CancellableEvent {
      */
     @Nullable
     public MapWrapper getMapWrapper() {
-        if (getFrame() == null) return null;
         if (mapWrapper == null) {
-            if (!frame.hasMetadata(MapWrapper.REFERENCE_METADATA)) return null;
+            mapWrapper = MapReflectionAPI.getMapManager().getWrapperForId(player, entityID);
-            mapWrapper = (MapWrapper) frame.getMetadata(MapWrapper.REFERENCE_METADATA).get(0).value();
         }
+
         return mapWrapper;
     }
 }

API/src/main/java/tech/sbdevelopment/mapreflectionapi/api/events/package-info.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

API/src/main/java/tech/sbdevelopment/mapreflectionapi/api/exceptions/MapLimitExceededException.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

API/src/main/java/tech/sbdevelopment/mapreflectionapi/api/exceptions/package-info.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

API/src/main/java/tech/sbdevelopment/mapreflectionapi/api/package-info.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

API/src/main/java/tech/sbdevelopment/mapreflectionapi/cmd/MapManagerCMD.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

API/src/main/java/tech/sbdevelopment/mapreflectionapi/listeners/MapListener.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

API/src/main/java/tech/sbdevelopment/mapreflectionapi/listeners/PacketListener.java

@@ -0,0 +1,80 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.listeners;
+
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerJoinEvent;
+import org.bukkit.event.player.PlayerQuitEvent;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.bukkit.util.Vector;
+
+public abstract class PacketListener implements Listener {
+    protected JavaPlugin plugin;
+
+    public static PacketListener construct(JavaPlugin plugin) throws IllegalStateException {
+        String packageName = Bukkit.getServer().getClass().getPackage().getName();
+        String version = packageName.substring(packageName.lastIndexOf('.') + 1);
+
+        plugin.getLogger().info("Enabling PacketListener for " + version + "...");
+
+        try {
+            final Class<?> clazz = Class.forName("tech.sbdevelopment.mapreflectionapi.nms.PacketListener_" + version);
+            if (PacketListener.class.isAssignableFrom(clazz)) {
+                return (PacketListener) clazz.getDeclaredConstructor().newInstance();
+            } else {
+                throw new IllegalStateException("Plugin corrupted! Detected invalid PacketListener class.");
+            }
+        } catch (Exception ex) {
+            throw new IllegalStateException("This Minecraft version (" + version + ") is not supported! Contact the developer to get support.");
+        }
+    }
+
+    public void init(JavaPlugin plugin) {
+        this.plugin = plugin;
+        Bukkit.getPluginManager().registerEvents(this, plugin);
+    }
+
+    @EventHandler
+    public void onJoin(PlayerJoinEvent e) {
+        injectPlayer(e.getPlayer());
+    }
+
+    @EventHandler
+    public void onQuit(PlayerQuitEvent e) {
+        removePlayer(e.getPlayer());
+    }
+
+    protected abstract void injectPlayer(Player p);
+
+    public abstract void removePlayer(Player p);
+
+    protected abstract Vector vec3DToVector(Object vec3d);
+
+    protected boolean hasField(Object packet, String field) {
+        try {
+            packet.getClass().getDeclaredField(field);
+            return true;
+        } catch (NoSuchFieldException ex) {
+            return false;
+        }
+    }
+}

API/src/main/java/tech/sbdevelopment/mapreflectionapi/managers/Configuration.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

API/src/main/java/tech/sbdevelopment/mapreflectionapi/utils/MainUtil.java

@@ -18,9 +18,6 @@
 
 package tech.sbdevelopment.mapreflectionapi.utils;
 
-import java.util.Map;
-import java.util.function.Supplier;
-
 public class MainUtil {
     private MainUtil() {
     }
@@ -38,4 +35,10 @@ public class MainUtil {
             return true;
         }
     }
+
+    public static <A, B> void validateArrayDimensions(A[][] arrayOne, B[][] arrayTwo) {
+        if (arrayOne.length != arrayTwo.length || arrayOne[0].length != arrayTwo[0].length) {
+            throw new IllegalArgumentException("The dimensions of two provided arrays (" + arrayOne.getClass().getName() + ", " + arrayTwo.getClass().getName() + ") do not match!");
+        }
+    }
 }

API/src/main/java/tech/sbdevelopment/mapreflectionapi/utils/ReflectionUtil.java

@@ -0,0 +1,537 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.utils;
+
+import org.bukkit.World;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import javax.annotation.Nonnull;
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodType;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.*;
+import java.util.concurrent.CompletableFuture;
+
+/**
+ * <b>ReflectionUtil</b> - Reflection handler for NMS and CraftBukkit.<br>
+ * Caches the packet related methods and is asynchronous.
+ * <p>
+ * This class does not handle null checks as most of the requests are from the
+ * other utility classes that already handle null checks.
+ * <p>
+ * <a href="https://wiki.vg/Protocol">Clientbound Packets</a> are considered fake
+ * updates to the client without changing the actual data. Since all the data is handled
+ * by the server.
+ *
+ * @author Crypto Morin, Stijn Bannink
+ * @version 2.1
+ */
+public class ReflectionUtil {
+    /**
+     * We use reflection mainly to avoid writing a new class for version barrier.
+     * The version barrier is for NMS that uses the Minecraft version as the main package name.
+     * <p>
+     * E.g. EntityPlayer in 1.15 is in the class {@code net.minecraft.server.v1_15_R1}
+     * but in 1.14 it's in {@code net.minecraft.server.v1_14_R1}
+     * In order to maintain cross-version compatibility we cannot import these classes.
+     * <p>
+     * Performance is not a concern for these specific statically initialized values.
+     */
+    public static final String VERSION;
+
+    static { // This needs to be right below VERSION because of initialization order.
+        // This package loop is used to avoid implementation-dependant strings like Bukkit.getVersion() or Bukkit.getBukkitVersion()
+        // which allows easier testing as well.
+        String found = null;
+        for (Package pack : Package.getPackages()) {
+            String name = pack.getName();
+
+            // .v because there are other packages.
+            if (name.startsWith("org.bukkit.craftbukkit.v")) {
+                found = pack.getName().split("\\.")[3];
+
+                // Just a final guard to make sure it finds this important class.
+                // As a protection for forge+bukkit implementation that tend to mix versions.
+                // The real CraftPlayer should exist in the package.
+                // Note: Doesn't seem to function properly. Will need to separate the version
+                // handler for NMS and CraftBukkit for softwares like catmc.
+                try {
+                    Class.forName("org.bukkit.craftbukkit." + found + ".entity.CraftPlayer");
+                    break;
+                } catch (ClassNotFoundException e) {
+                    found = null;
+                }
+            }
+        }
+        if (found == null)
+            throw new IllegalArgumentException("Failed to parse server version. Could not find any package starting with name: 'org.bukkit.craftbukkit.v'");
+        VERSION = found;
+    }
+
+    /**
+     * The raw minor version number.
+     * E.g. {@code v1_17_R1} to {@code 17}
+     *
+     * @since 4.0.0
+     */
+    public static final int VER = Integer.parseInt(VERSION.substring(1).split("_")[1]);
+    /**
+     * The raw minor version number.
+     * E.g. {@code v1_18_R2} to {@code 2}
+     *
+     * @since 4.0.0
+     */
+    public static final int VER_MINOR = toInt(VERSION.substring(1).split("_")[2].substring(1), 0);
+    /**
+     * Mojang remapped their NMS in 1.17 https://www.spigotmc.org/threads/spigot-bungeecord-1-17.510208/#post-4184317
+     */
+    public static final String
+            CRAFTBUKKIT = "org.bukkit.craftbukkit." + VERSION + '.',
+            NMS = v(17, "net.minecraft.").orElse("net.minecraft.server." + VERSION + '.');
+    /**
+     * A nullable public accessible field only available in {@code EntityPlayer}.
+     * This can be null if the player is offline.
+     */
+    private static final MethodHandle PLAYER_CONNECTION;
+    /**
+     * Responsible for getting the NMS handler {@code EntityPlayer} object for the player.
+     * {@code CraftPlayer} is simply a wrapper for {@code EntityPlayer}.
+     * Used mainly for handling packet related operations.
+     * <p>
+     * This is also where the famous player {@code ping} field comes from!
+     */
+    private static final MethodHandle GET_HANDLE;
+    private static final MethodHandle GET_HANDLE_WORLD;
+    /**
+     * Sends a packet to the player's client through a {@code NetworkManager} which
+     * is where {@code ProtocolLib} controls packets by injecting channels!
+     */
+    private static final MethodHandle SEND_PACKET;
+
+    static {
+        Class<?> entityPlayer = getNMSClass("server.level", "EntityPlayer");
+        Class<?> worldServer = getNMSClass("server.level", "WorldServer");
+        Class<?> craftPlayer = getCraftClass("entity.CraftPlayer");
+        Class<?> craftWorld = getCraftClass("CraftWorld");
+        Class<?> playerConnection = getNMSClass("server.network", "PlayerConnection");
+
+        MethodHandles.Lookup lookup = MethodHandles.lookup();
+        MethodHandle sendPacket = null;
+        MethodHandle getHandle = null;
+        MethodHandle getHandleWorld = null;
+        MethodHandle connection = null;
+
+        try {
+            connection = lookup.findGetter(entityPlayer,
+                    supports(20) ? "c" : supports(17) ? "b" : "playerConnection", playerConnection);
+            getHandle = lookup.findVirtual(craftPlayer, "getHandle", MethodType.methodType(entityPlayer));
+            getHandleWorld = lookup.findVirtual(craftWorld, "getHandle", MethodType.methodType(worldServer));
+            sendPacket = lookup.findVirtual(playerConnection,
+                    v(18, "a").orElse("sendPacket"),
+                    MethodType.methodType(void.class, getNMSClass("network.protocol", "Packet")));
+        } catch (NoSuchMethodException | NoSuchFieldException | IllegalAccessException ex) {
+            ex.printStackTrace();
+        }
+
+        PLAYER_CONNECTION = connection;
+        SEND_PACKET = sendPacket;
+        GET_HANDLE = getHandle;
+        GET_HANDLE_WORLD = getHandleWorld;
+    }
+
+    private ReflectionUtil() {
+    }
+
+    /**
+     * This method is purely for readability.
+     * No performance is gained.
+     *
+     * @since 5.0.0
+     */
+    public static <T> VersionHandler<T> v(int version, T handle) {
+        return new VersionHandler<>(version, handle);
+    }
+
+    /**
+     * Checks whether the server version is equal or greater than the given version.
+     *
+     * @param version the version to compare the server version with.
+     * @return true if the version is equal or newer, otherwise false.
+     * @since 4.0.0
+     */
+    public static boolean supports(int version) {
+        return VER >= version;
+    }
+
+    /**
+     * Checks whether the server version is equal or greater than the given version.
+     * <p>
+     * PAY ATTENTION! The minor version is based on the NMS version.
+     * This means that v1_19_R3 has major version 19 and minor version 3.
+     *
+     * @param major the major version to compare the server version with.
+     * @param minor the minor version to compare the server version with.
+     * @return true if the version is equal or newer, otherwise false.
+     * @since 4.0.0
+     */
+    public static boolean supports(int major, int minor) {
+        return VER >= major && VER_MINOR >= minor;
+    }
+
+    /**
+     * Helper class converted to {@link List}
+     *
+     * @param <E> The storage type
+     */
+    public static class ListParam<E> extends ArrayList<E> {
+
+    }
+
+    /**
+     * Helper class converted to {@link Collection}
+     *
+     * @param <E> The storage type
+     */
+    public static class CollectionParam<E> extends ArrayList<E> {
+
+    }
+
+    private static Class<?> wrapperToPrimitive(Class<?> clazz) {
+        if (clazz == Boolean.class) return boolean.class;
+        if (clazz == Integer.class) return int.class;
+        if (clazz == Double.class) return double.class;
+        if (clazz == Float.class) return float.class;
+        if (clazz == Long.class) return long.class;
+        if (clazz == Short.class) return short.class;
+        if (clazz == Byte.class) return byte.class;
+        if (clazz == Void.class) return void.class;
+        if (clazz == Character.class) return char.class;
+        if (clazz == CollectionParam.class) return Collection.class;
+        if (clazz == ListParam.class) return List.class;
+        if (clazz == ArrayList.class) return Collection.class; //LEGACY!
+        if (clazz == HashMap.class) return Map.class;
+        return clazz;
+    }
+
+    private static Class<?>[] toParamTypes(Object... params) {
+        return Arrays.stream(params)
+                .map(obj -> obj != null ? wrapperToPrimitive(obj.getClass()) : null)
+                .toArray(Class<?>[]::new);
+    }
+
+    @Nullable
+    public static Class<?> getClass(@NotNull String name) {
+        try {
+            return Class.forName(name);
+        } catch (ClassNotFoundException ex) {
+            ex.printStackTrace();
+            return null;
+        }
+    }
+
+    @Nullable
+    public static Object callConstructorNull(Class<?> clazz, Class<?> paramClass) {
+        try {
+            Constructor<?> con = clazz.getConstructor(paramClass);
+            con.setAccessible(true);
+            return con.newInstance(clazz.cast(null));
+        } catch (NoSuchMethodException | IllegalAccessException | InstantiationException |
+                 InvocationTargetException ex) {
+            ex.printStackTrace();
+            return null;
+        }
+    }
+
+    @Nullable
+    public static Object callFirstConstructor(Class<?> clazz, Object... params) {
+        try {
+            Constructor<?> con = clazz.getConstructors()[0];
+            con.setAccessible(true);
+            return con.newInstance(params);
+        } catch (IllegalAccessException | InstantiationException |
+                 InvocationTargetException ex) {
+            ex.printStackTrace();
+            return null;
+        }
+    }
+
+    @Nullable
+    public static Object callConstructor(Class<?> clazz, Object... params) {
+        try {
+            Constructor<?> con = clazz.getConstructor(toParamTypes(params));
+            con.setAccessible(true);
+            return con.newInstance(params);
+        } catch (NoSuchMethodException | IllegalAccessException | InstantiationException |
+                 InvocationTargetException ex) {
+            ex.printStackTrace();
+            return null;
+        }
+    }
+
+    @Nullable
+    public static Object callDeclaredConstructor(Class<?> clazz, Object... params) {
+        try {
+            Constructor<?> con = clazz.getDeclaredConstructor(toParamTypes(params));
+            con.setAccessible(true);
+            return con.newInstance(params);
+        } catch (NoSuchMethodException | IllegalAccessException | InstantiationException |
+                 InvocationTargetException ex) {
+            ex.printStackTrace();
+            return null;
+        }
+    }
+
+    @Nullable
+    public static Object callMethod(Class<?> clazz, String method, Object... params) {
+        try {
+            Method m = clazz.getMethod(method, toParamTypes(params));
+            m.setAccessible(true);
+            return m.invoke(null, params);
+        } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException ex) {
+            ex.printStackTrace();
+            return null;
+        }
+    }
+
+    @Nullable
+    public static Object callMethod(Object obj, String method, Object... params) {
+        try {
+            Method m = obj.getClass().getMethod(method, toParamTypes(params));
+            m.setAccessible(true);
+            return m.invoke(obj, params);
+        } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException ex) {
+            ex.printStackTrace();
+            return null;
+        }
+    }
+
+    @Nullable
+    public static Object callDeclaredMethod(Object obj, String method, Object... params) {
+        try {
+            Method m = obj.getClass().getDeclaredMethod(method, toParamTypes(params));
+            m.setAccessible(true);
+            return m.invoke(obj, params);
+        } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException ex) {
+            ex.printStackTrace();
+            return null;
+        }
+    }
+
+    public static boolean hasField(Object packet, String field) {
+        try {
+            packet.getClass().getDeclaredField(field);
+            return true;
+        } catch (NoSuchFieldException ex) {
+            return false;
+        }
+    }
+
+    @Nullable
+    public static Object getField(Object object, String field) {
+        try {
+            Field f = object.getClass().getField(field);
+            f.setAccessible(true);
+            return f.get(object);
+        } catch (NoSuchFieldException | IllegalAccessException ex) {
+            ex.printStackTrace();
+            return null;
+        }
+    }
+
+    @Nullable
+    public static Object getDeclaredField(Class<?> clazz, String field) {
+        try {
+            Field f = clazz.getDeclaredField(field);
+            f.setAccessible(true);
+            return f.get(null);
+        } catch (NoSuchFieldException | IllegalAccessException ex) {
+            ex.printStackTrace();
+            return null;
+        }
+    }
+
+    @Nullable
+    public static Object getDeclaredField(Object object, String field) {
+        try {
+            Field f = object.getClass().getDeclaredField(field);
+            f.setAccessible(true);
+            return f.get(object);
+        } catch (NoSuchFieldException | IllegalAccessException ex) {
+            ex.printStackTrace();
+            return null;
+        }
+    }
+
+    public static void setDeclaredField(Object object, String field, Object value) {
+        try {
+            Field f = object.getClass().getDeclaredField(field);
+            f.setAccessible(true);
+            f.set(object, value);
+        } catch (NoSuchFieldException | IllegalAccessException ex) {
+            ex.printStackTrace();
+        }
+    }
+
+    /**
+     * Get a NMS (net.minecraft.server) class which accepts a package for 1.17 compatibility.
+     *
+     * @param newPackage the 1.17 package name.
+     * @param name       the name of the class.
+     * @return the NMS class or null if not found.
+     * @since 4.0.0
+     */
+    @javax.annotation.Nullable
+    public static Class<?> getNMSClass(@Nonnull String newPackage, @Nonnull String name) {
+        if (supports(17)) name = newPackage + '.' + name;
+        return getNMSClass(name);
+    }
+
+    /**
+     * Get a NMS (net.minecraft.server) class.
+     *
+     * @param name the name of the class.
+     * @return the NMS class or null if not found.
+     * @since 1.0.0
+     */
+    @javax.annotation.Nullable
+    public static Class<?> getNMSClass(@Nonnull String name) {
+        try {
+            return Class.forName(NMS + name);
+        } catch (ClassNotFoundException ex) {
+            ex.printStackTrace();
+            return null;
+        }
+    }
+
+    /**
+     * Sends a packet to the player asynchronously if they're online.
+     * Packets are thread-safe.
+     *
+     * @param player  the player to send the packet to.
+     * @param packets the packets to send.
+     * @return the async thread handling the packet.
+     * @see #sendPacketSync(Player, Object...)
+     * @since 1.0.0
+     */
+    @Nonnull
+    public static CompletableFuture<Void> sendPacket(@Nonnull Player player, @Nonnull Object... packets) {
+        return CompletableFuture.runAsync(() -> sendPacketSync(player, packets))
+                .exceptionally(ex -> {
+                    ex.printStackTrace();
+                    return null;
+                });
+    }
+
+    /**
+     * Sends a packet to the player synchronously if they're online.
+     *
+     * @param player  the player to send the packet to.
+     * @param packets the packets to send.
+     * @see #sendPacket(Player, Object...)
+     * @since 2.0.0
+     */
+    public static void sendPacketSync(@Nonnull Player player, @Nonnull Object... packets) {
+        try {
+            Object handle = GET_HANDLE.invoke(player);
+            Object connection = PLAYER_CONNECTION.invoke(handle);
+
+            // Checking if the connection is not null is enough. There is no need to check if the player is online.
+            if (connection != null) {
+                for (Object packet : packets) SEND_PACKET.invoke(connection, packet);
+            }
+        } catch (Throwable throwable) {
+            throwable.printStackTrace();
+        }
+    }
+
+    @javax.annotation.Nullable
+    public static Object getHandle(@Nonnull Player player) {
+        Objects.requireNonNull(player, "Cannot get handle of null player");
+        try {
+            return GET_HANDLE.invoke(player);
+        } catch (Throwable throwable) {
+            throwable.printStackTrace();
+            return null;
+        }
+    }
+
+    @javax.annotation.Nullable
+    public static Object getHandle(@Nonnull World world) {
+        Objects.requireNonNull(world, "Cannot get handle of null world");
+        try {
+            return GET_HANDLE_WORLD.invoke(world);
+        } catch (Throwable throwable) {
+            throwable.printStackTrace();
+            return null;
+        }
+    }
+
+    /**
+     * Get a CraftBukkit (org.bukkit.craftbukkit) class.
+     *
+     * @param name the name of the class to load.
+     * @return the CraftBukkit class or null if not found.
+     * @since 1.0.0
+     */
+    @javax.annotation.Nullable
+    public static Class<?> getCraftClass(@Nonnull String name) {
+        try {
+            return Class.forName(CRAFTBUKKIT + name);
+        } catch (ClassNotFoundException ex) {
+            ex.printStackTrace();
+            return null;
+        }
+    }
+
+    public static final class VersionHandler<T> {
+        private int version;
+        private T handle;
+
+        private VersionHandler(int version, T handle) {
+            if (supports(version)) {
+                this.version = version;
+                this.handle = handle;
+            }
+        }
+
+        public VersionHandler<T> v(int version, T handle) {
+            if (version == this.version)
+                throw new IllegalArgumentException("Cannot have duplicate version handles for version: " + version);
+            if (version > this.version && supports(version)) {
+                this.version = version;
+                this.handle = handle;
+            }
+            return this;
+        }
+
+        public T orElse(T handle) {
+            return this.version == 0 ? handle : this.handle;
+        }
+    }
+
+    private static int toInt(String string, int def) {
+        return string.isBlank() ? def : Integer.parseInt(string);
+    }
+}

API/src/main/java/tech/sbdevelopment/mapreflectionapi/utils/UpdateManager.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -143,12 +143,14 @@ public class UpdateManager {
         File pluginFile = getPluginFile(); // /plugins/XXX.jar
         if (pluginFile == null) {
             this.downloadResponse.accept(DownloadResponse.ERROR, null);
+            Bukkit.getLogger().info("Pluginfile is null");
             return;
         }
         File updateFolder = Bukkit.getUpdateFolderFile();
         if (!updateFolder.exists()) {
             if (!updateFolder.mkdirs()) {
                 this.downloadResponse.accept(DownloadResponse.ERROR, null);
+                Bukkit.getLogger().info("Updatefolder doesn't exists, and can't be made");
                 return;
             }
         }

API/src/main/java/tech/sbdevelopment/mapreflectionapi/utils/YamlFile.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of MapReflectionAPI.
- * Copyright (c) 2022 inventivetalent / SBDevelopment - All Rights Reserved
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

Dist/pom.xml

@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ This file is part of MapReflectionAPI.
+  ~ Copyright (c) 2023 inventivetalent / SBDevelopment - All Rights Reserved
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>MapReflectionAPI</artifactId>
+        <groupId>tech.sbdevelopment</groupId>
+        <version>${revision}</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+    <packaging>jar</packaging>
+
+    <artifactId>MapReflectionAPI-Dist</artifactId>
+
+    <build>
+        <directory>../target</directory>
+        <finalName>${project.parent.name}-${project.version}</finalName>
+
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-deploy-plugin</artifactId>
+                <version>3.0.0-M2</version>
+                <configuration>
+                    <skip>true</skip>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.3.0</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                        <configuration>
+                            <createDependencyReducedPom>false</createDependencyReducedPom>
+
+                            <!-- Include all the dependencies required by the plugin -->
+                            <artifactSet>
+                                <includes>
+                                    <include>tech.sbdevelopment:MapReflectionAPI*</include>
+                                </includes>
+                            </artifactSet>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-API</artifactId>
+            <version>${project.parent.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-NMS-v1_20_R4</artifactId>
+            <version>${project.parent.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-NMS-v1_19_R3</artifactId>
+            <version>${project.parent.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-NMS-v1_18_R2</artifactId>
+            <version>${project.parent.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-NMS-v1_16_R3</artifactId>
+            <version>${project.parent.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-NMS-v1_17_R1</artifactId>
+            <version>${project.parent.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-NMS-v1_15_R1</artifactId>
+            <version>${project.parent.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-NMS-v1_14_R1</artifactId>
+            <version>${project.parent.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-NMS-v1_13_R2</artifactId>
+            <version>${project.parent.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-NMS-v1_12_R1</artifactId>
+            <version>${project.parent.version}</version>
+        </dependency>
+    </dependencies>
+</project>

NMS-v1_12_R1/pom.xml

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ This file is part of MapReflectionAPI.
+  ~ Copyright (c) 2023 inventivetalent / SBDevelopment - All Rights Reserved
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>MapReflectionAPI</artifactId>
+        <groupId>tech.sbdevelopment</groupId>
+        <version>${revision}</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>MapReflectionAPI-NMS-v1_12_R1</artifactId>
+
+    <properties>
+        <NMSVersion>1.12.2-R0.1-SNAPSHOT</NMSVersion>
+        <jdk.version>11</jdk.version>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <release>${jdk.version}</release>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-deploy-plugin</artifactId>
+                <version>3.1.1</version>
+                <configuration>
+                    <skip>true</skip>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.bukkit</groupId>
+            <artifactId>craftbukkit</artifactId>
+            <version>${NMSVersion}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-API</artifactId>
+            <version>${revision}</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

NMS-v1_12_R1/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapSender_v1_12_R1.java

@@ -0,0 +1,166 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.server.v1_12_R1.PacketPlayOutMap;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_12_R1.entity.CraftPlayer;
+import org.bukkit.entity.Player;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+
+/**
+ * The {@link MapSender_v1_12_R1} sends the Map packets to players.
+ */
+public class MapSender_v1_12_R1 {
+    private static final List<QueuedMap> sendQueue = new ArrayList<>();
+    private static int senderID = -1;
+
+    private MapSender_v1_12_R1() {
+    }
+
+    /**
+     * Add a map to the send queue
+     *
+     * @param id      The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void addToQueue(final int id, final ArrayImage content, final Player player) {
+        QueuedMap toSend = new QueuedMap(id, content, player);
+        if (sendQueue.contains(toSend)) return;
+        sendQueue.add(toSend);
+
+        runSender();
+    }
+
+    /**
+     * Cancels a senderID in the sender queue
+     *
+     * @param s The senderID to cancel
+     */
+    public static void cancelID(int s) {
+        sendQueue.removeIf(queuedMap -> queuedMap.id == s);
+    }
+
+    /**
+     * Run the sender task
+     */
+    private static void runSender() {
+        if (Bukkit.getScheduler().isQueued(senderID) || Bukkit.getScheduler().isCurrentlyRunning(senderID) || sendQueue.isEmpty())
+            return;
+
+        senderID = Bukkit.getScheduler().scheduleSyncRepeatingTask(MapReflectionAPI.getInstance(), () -> {
+            if (sendQueue.isEmpty()) return;
+
+            for (int i = 0; i < Math.min(sendQueue.size(), 10 + 1); i++) {
+                QueuedMap current = sendQueue.get(0);
+                if (current == null) return;
+
+                sendMap(current.id, current.image, current.player);
+
+                if (!sendQueue.isEmpty()) sendQueue.remove(0);
+            }
+        }, 0, 2);
+    }
+
+    /**
+     * Send a map to a player
+     *
+     * @param id0     The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void sendMap(final int id0, final ArrayImage content, final Player player) {
+        if (player == null || !player.isOnline()) {
+            List<QueuedMap> toRemove = new ArrayList<>();
+            for (QueuedMap qMap : sendQueue) {
+                if (qMap == null) continue;
+
+                if (qMap.player == null || !qMap.player.isOnline()) {
+                    toRemove.add(qMap);
+                }
+            }
+            Bukkit.getScheduler().cancelTask(senderID);
+            sendQueue.removeAll(toRemove);
+
+            return;
+        }
+
+        final int id = -id0;
+        Bukkit.getScheduler().runTaskAsynchronously(MapReflectionAPI.getInstance(), () -> {
+            try {
+                PacketPlayOutMap packet = new PacketPlayOutMap(
+                        id, //ID
+                        (byte) 0, //Scale
+                        false, //???
+                        new ArrayList<>(), //Icons
+                        content.array, //Data
+                        content.minX, //X pos
+                        content.minY, //Y pos
+                        content.maxX, //X size (2nd X pos)
+                        content.maxY //Y size (2nd Y pos)
+                );
+
+                ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        });
+    }
+
+    static final class QueuedMap {
+        private final int id;
+        private final ArrayImage image;
+        private final Player player;
+
+        QueuedMap(int id, ArrayImage image, Player player) {
+            this.id = id;
+            this.image = image;
+            this.player = player;
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+            if (obj == this) return true;
+            if (obj == null || obj.getClass() != this.getClass()) return false;
+            QueuedMap that = (QueuedMap) obj;
+            return this.id == that.id &&
+                    Objects.equals(this.image, that.image) &&
+                    Objects.equals(this.player, that.player);
+        }
+
+        @Override
+        public int hashCode() {
+            return Objects.hash(id, image, player);
+        }
+
+        @Override
+        public String toString() {
+            return "QueuedMap[" +
+                    "id=" + id + ", " +
+                    "image=" + image + ", " +
+                    "player=" + player + ']';
+        }
+    }
+}

NMS-v1_12_R1/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapWrapper_v1_12_R1.java

@@ -0,0 +1,249 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.server.v1_12_R1.*;
+import org.bukkit.Material;
+import org.bukkit.World;
+import org.bukkit.*;
+import org.bukkit.craftbukkit.v1_12_R1.CraftWorld;
+import org.bukkit.craftbukkit.v1_12_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_12_R1.inventory.CraftItemStack;
+import org.bukkit.entity.ItemFrame;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.metadata.FixedMetadataValue;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+import tech.sbdevelopment.mapreflectionapi.api.MapController;
+import tech.sbdevelopment.mapreflectionapi.api.MapWrapper;
+import tech.sbdevelopment.mapreflectionapi.api.exceptions.MapLimitExceededException;
+
+import java.util.*;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.getDeclaredField;
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.setDeclaredField;
+
+public class MapWrapper_v1_12_R1 extends MapWrapper {
+    protected MapController controller = new MapController() {
+        private final Map<UUID, Integer> viewers = new HashMap<>();
+
+        @Override
+        public void addViewer(Player player) throws MapLimitExceededException {
+            if (!isViewing(player)) {
+                viewers.put(player.getUniqueId(), MapReflectionAPI.getMapManager().getNextFreeIdFor(player));
+            }
+        }
+
+        @Override
+        public void removeViewer(OfflinePlayer player) {
+            viewers.remove(player.getUniqueId());
+        }
+
+        @Override
+        public void clearViewers() {
+            for (UUID uuid : viewers.keySet()) {
+                viewers.remove(uuid);
+            }
+        }
+
+        @Override
+        public boolean isViewing(OfflinePlayer player) {
+            if (player == null) return false;
+            return viewers.containsKey(player.getUniqueId());
+        }
+
+        @Override
+        public int getMapId(OfflinePlayer player) {
+            if (isViewing(player)) {
+                return viewers.get(player.getUniqueId());
+            }
+            return -1;
+        }
+
+        @Override
+        public void update(ArrayImage content) {
+            MapWrapper duplicate = MapReflectionAPI.getMapManager().getDuplicate(content);
+            if (duplicate != null) {
+                MapWrapper_v1_12_R1.this.content = duplicate.getContent();
+                return;
+            }
+
+            MapWrapper_v1_12_R1.this.content = content;
+
+            for (UUID id : viewers.keySet()) {
+                sendContent(Bukkit.getPlayer(id));
+            }
+        }
+
+        @Override
+        public void sendContent(Player player) {
+            sendContent(player, false);
+        }
+
+        @Override
+        public void sendContent(Player player, boolean withoutQueue) {
+            if (!isViewing(player)) return;
+
+            int id = getMapId(player);
+            if (withoutQueue) {
+                MapSender_v1_12_R1.sendMap(id, MapWrapper_v1_12_R1.this.content, player);
+            } else {
+                MapSender_v1_12_R1.addToQueue(id, MapWrapper_v1_12_R1.this.content, player);
+            }
+        }
+
+        @Override
+        public void cancelSend() {
+            for (int s : viewers.values()) {
+                MapSender_v1_12_R1.cancelID(s);
+            }
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot, boolean force) {
+            if (!isViewing(player)) return;
+
+            if (player.getGameMode() == GameMode.CREATIVE && !force) return;
+
+            if (slot < 9) {
+                slot += 36;
+            } else if (slot > 35 && slot != 45) {
+                slot = 8 - (slot - 36);
+            }
+
+            CraftPlayer craftPlayer = (CraftPlayer) player;
+            int windowId = craftPlayer.getHandle().defaultContainer.windowId;
+
+            ItemStack stack = new ItemStack(Material.MAP, 1);
+            net.minecraft.server.v1_12_R1.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+
+            PacketPlayOutSetSlot packet = new PacketPlayOutSetSlot(windowId, slot, nmsStack);
+            ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet);
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot) {
+            showInInventory(player, slot, false);
+        }
+
+        @Override
+        public void showInHand(Player player, boolean force) {
+            if (player.getInventory().getItemInMainHand().getType() != Material.MAP && !force) return;
+            showInInventory(player, player.getInventory().getHeldItemSlot(), force);
+        }
+
+        @Override
+        public void showInHand(Player player) {
+            showInHand(player, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame) {
+            showInFrame(player, frame, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame, boolean force) {
+            if (frame.getItem().getType() != Material.MAP && !force) return;
+            showInFrame(player, frame.getEntityId());
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId) {
+            showInFrame(player, entityId, null);
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId, String debugInfo) {
+            if (!isViewing(player)) return;
+
+            ItemStack stack = new ItemStack(Material.MAP, 1);
+            if (debugInfo != null) {
+                ItemMeta itemMeta = stack.getItemMeta();
+                itemMeta.setDisplayName(debugInfo);
+                stack.setItemMeta(itemMeta);
+            }
+
+            Bukkit.getScheduler().runTask(MapReflectionAPI.getInstance(), () -> {
+                ItemFrame frame = getItemFrameById(player.getWorld(), entityId);
+                if (frame != null) {
+                    frame.removeMetadata("MAP_WRAPPER_REF", MapReflectionAPI.getInstance());
+                    frame.setMetadata("MAP_WRAPPER_REF", new FixedMetadataValue(MapReflectionAPI.getInstance(), MapWrapper_v1_12_R1.this));
+                }
+
+                sendItemFramePacket(player, entityId, stack, getMapId(player));
+            });
+        }
+
+        @Override
+        public void clearFrame(Player player, int entityId) {
+
+        }
+
+        @Override
+        public void clearFrame(Player player, ItemFrame frame) {
+
+        }
+
+        @Override
+        public ItemFrame getItemFrameById(World world, int entityId) {
+            CraftWorld craftWorld = (CraftWorld) world;
+
+            Entity entity = craftWorld.getHandle().getEntity(entityId);
+            if (entity == null) return null;
+
+            org.bukkit.entity.Entity bukkitEntity = entity.getBukkitEntity();
+            if (bukkitEntity instanceof ItemFrame) return (ItemFrame) bukkitEntity;
+
+            return null;
+        }
+
+        private void sendItemFramePacket(Player player, int entityId, ItemStack stack, int mapId) {
+            net.minecraft.server.v1_12_R1.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+            if (nmsStack.getTag() == null) nmsStack.setTag(new NBTTagCompound()); //No orCreate on 1.12.2!
+            nmsStack.getTag().setInt("map", mapId); //getTag putInt
+
+            PacketPlayOutEntityMetadata packet = new PacketPlayOutEntityMetadata(entityId, new DataWatcher(null), true);
+
+            try {
+                List<DataWatcher.Item<?>> list = new ArrayList<>();
+                DataWatcherObject<net.minecraft.server.v1_12_R1.ItemStack> dataWatcherObject = (DataWatcherObject<net.minecraft.server.v1_12_R1.ItemStack>) getDeclaredField(EntityItemFrame.class, "c");
+                DataWatcher.Item<?> dataWatcherItem = new DataWatcher.Item<>(dataWatcherObject, nmsStack);
+                list.add(dataWatcherItem);
+                setDeclaredField(packet, "b", list);
+            } catch (Exception e) {
+                e.printStackTrace();
+                return;
+            }
+
+            ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet);
+        }
+    };
+
+    public MapWrapper_v1_12_R1(ArrayImage image) {
+        super(image);
+    }
+
+    @Override
+    public MapController getController() {
+        return controller;
+    }
+}

NMS-v1_12_R1/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/PacketListener_v1_12_R1.java

@@ -0,0 +1,123 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import io.netty.channel.*;
+import net.minecraft.server.v1_12_R1.*;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_12_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_12_R1.inventory.CraftItemStack;
+import org.bukkit.entity.Player;
+import org.bukkit.util.Vector;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.events.CreateInventoryMapUpdateEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapCancelEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapInteractEvent;
+import tech.sbdevelopment.mapreflectionapi.listeners.PacketListener;
+
+import java.util.concurrent.TimeUnit;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.getDeclaredField;
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.setDeclaredField;
+
+public class PacketListener_v1_12_R1 extends PacketListener {
+    @Override
+    protected void injectPlayer(Player p) {
+        ChannelDuplexHandler channelDuplexHandler = new ChannelDuplexHandler() {
+            @Override
+            //On send packet
+            public void write(ChannelHandlerContext ctx, Object packet, ChannelPromise promise) throws Exception {
+                if (packet instanceof PacketPlayOutMap) {
+                    PacketPlayOutMap packetPlayOutMap = (PacketPlayOutMap) packet;
+
+                    int id = (int) getDeclaredField(packetPlayOutMap, "a");
+                    if (id < 0) {
+                        //It's one of our maps, invert ID and let through!
+                        int newId = -id;
+                        setDeclaredField(packetPlayOutMap, "a", newId); //mapId
+                    } else {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapCancelEvent event = new MapCancelEvent(p, id, async);
+                        if (MapReflectionAPI.getMapManager().isIdUsedBy(p, id)) event.setCancelled(true);
+                        if (event.getHandlers().getRegisteredListeners().length > 0)
+                            Bukkit.getPluginManager().callEvent(event);
+
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.write(ctx, packet, promise);
+            }
+
+            @Override
+            //On receive packet
+            public void channelRead(ChannelHandlerContext ctx, Object packet) throws Exception {
+                if (packet instanceof PacketPlayInUseEntity) {
+                    PacketPlayInUseEntity packetPlayInUseEntity = (PacketPlayInUseEntity) packet;
+
+                    int entityId = (int) getDeclaredField(packetPlayInUseEntity, "a"); //entityId
+                    PacketPlayInUseEntity.EnumEntityUseAction action = packetPlayInUseEntity.a(); //action
+                    EnumHand hand = packetPlayInUseEntity.b(); //hand
+                    Vec3D pos = packetPlayInUseEntity.c(); //pos
+
+                    if (Bukkit.getScheduler().callSyncMethod(plugin, () -> {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapInteractEvent event = new MapInteractEvent(p, entityId, action.ordinal(), pos != null ? vec3DToVector(pos) : null, hand != null ? hand.ordinal() : 0, async);
+                        if (event.getFrame() != null && event.getMapWrapper() != null) {
+                            Bukkit.getPluginManager().callEvent(event);
+                            return event.isCancelled();
+                        }
+                        return false;
+                    }).get(1, TimeUnit.SECONDS)) return;
+                } else if (packet instanceof PacketPlayInSetCreativeSlot) {
+                    PacketPlayInSetCreativeSlot packetPlayInSetCreativeSlot = (PacketPlayInSetCreativeSlot) packet;
+
+                    int slot = packetPlayInSetCreativeSlot.a();
+                    ItemStack item = packetPlayInSetCreativeSlot.getItemStack();
+
+                    boolean async = !plugin.getServer().isPrimaryThread();
+                    CreateInventoryMapUpdateEvent event = new CreateInventoryMapUpdateEvent(p, slot, CraftItemStack.asBukkitCopy(item), async);
+                    if (event.getMapWrapper() != null) {
+                        Bukkit.getPluginManager().callEvent(event);
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.channelRead(ctx, packet);
+            }
+        };
+
+        ChannelPipeline pipeline = ((CraftPlayer) p).getHandle().playerConnection.networkManager.channel.pipeline();
+        pipeline.addBefore("packet_handler", p.getName(), channelDuplexHandler);
+    }
+
+    @Override
+    public void removePlayer(Player p) {
+        Channel channel = ((CraftPlayer) p).getHandle().playerConnection.networkManager.channel;
+        channel.eventLoop().submit(() -> channel.pipeline().remove(p.getName()));
+    }
+
+    @Override
+    protected Vector vec3DToVector(Object vec3d) {
+        if (!(vec3d instanceof Vec3D)) return new Vector(0, 0, 0);
+
+        Vec3D vec3dObj = (Vec3D) vec3d;
+        return new Vector(vec3dObj.x, vec3dObj.y, vec3dObj.z);
+    }
+}

NMS-v1_13_R2/pom.xml

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ This file is part of MapReflectionAPI.
+  ~ Copyright (c) 2023 inventivetalent / SBDevelopment - All Rights Reserved
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>MapReflectionAPI</artifactId>
+        <groupId>tech.sbdevelopment</groupId>
+        <version>${revision}</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>MapReflectionAPI-NMS-v1_13_R2</artifactId>
+
+    <properties>
+        <NMSVersion>1.13.2-R0.1-SNAPSHOT</NMSVersion>
+        <jdk.version>11</jdk.version>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <release>${jdk.version}</release>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-deploy-plugin</artifactId>
+                <version>3.1.1</version>
+                <configuration>
+                    <skip>true</skip>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.bukkit</groupId>
+            <artifactId>craftbukkit</artifactId>
+            <version>${NMSVersion}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-API</artifactId>
+            <version>${revision}</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

NMS-v1_13_R2/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapSender_v1_13_R2.java

@@ -0,0 +1,166 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.server.v1_13_R2.PacketPlayOutMap;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_13_R2.entity.CraftPlayer;
+import org.bukkit.entity.Player;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+
+/**
+ * The {@link MapSender_v1_13_R2} sends the Map packets to players.
+ */
+public class MapSender_v1_13_R2 {
+    private static final List<QueuedMap> sendQueue = new ArrayList<>();
+    private static int senderID = -1;
+
+    private MapSender_v1_13_R2() {
+    }
+
+    /**
+     * Add a map to the send queue
+     *
+     * @param id      The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void addToQueue(final int id, final ArrayImage content, final Player player) {
+        QueuedMap toSend = new QueuedMap(id, content, player);
+        if (sendQueue.contains(toSend)) return;
+        sendQueue.add(toSend);
+
+        runSender();
+    }
+
+    /**
+     * Cancels a senderID in the sender queue
+     *
+     * @param s The senderID to cancel
+     */
+    public static void cancelID(int s) {
+        sendQueue.removeIf(queuedMap -> queuedMap.id == s);
+    }
+
+    /**
+     * Run the sender task
+     */
+    private static void runSender() {
+        if (Bukkit.getScheduler().isQueued(senderID) || Bukkit.getScheduler().isCurrentlyRunning(senderID) || sendQueue.isEmpty())
+            return;
+
+        senderID = Bukkit.getScheduler().scheduleSyncRepeatingTask(MapReflectionAPI.getInstance(), () -> {
+            if (sendQueue.isEmpty()) return;
+
+            for (int i = 0; i < Math.min(sendQueue.size(), 10 + 1); i++) {
+                QueuedMap current = sendQueue.get(0);
+                if (current == null) return;
+
+                sendMap(current.id, current.image, current.player);
+
+                if (!sendQueue.isEmpty()) sendQueue.remove(0);
+            }
+        }, 0, 2);
+    }
+
+    /**
+     * Send a map to a player
+     *
+     * @param id0     The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void sendMap(final int id0, final ArrayImage content, final Player player) {
+        if (player == null || !player.isOnline()) {
+            List<QueuedMap> toRemove = new ArrayList<>();
+            for (QueuedMap qMap : sendQueue) {
+                if (qMap == null) continue;
+
+                if (qMap.player == null || !qMap.player.isOnline()) {
+                    toRemove.add(qMap);
+                }
+            }
+            Bukkit.getScheduler().cancelTask(senderID);
+            sendQueue.removeAll(toRemove);
+
+            return;
+        }
+
+        final int id = -id0;
+        Bukkit.getScheduler().runTaskAsynchronously(MapReflectionAPI.getInstance(), () -> {
+            try {
+                PacketPlayOutMap packet = new PacketPlayOutMap(
+                        id, //ID
+                        (byte) 0, //Scale
+                        false, //???
+                        new ArrayList<>(), //Icons
+                        content.array, //Data
+                        content.minX, //X pos
+                        content.minY, //Y pos
+                        content.maxX, //X size (2nd X pos)
+                        content.maxY //Y size (2nd Y pos)
+                );
+
+                ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        });
+    }
+
+    static final class QueuedMap {
+        private final int id;
+        private final ArrayImage image;
+        private final Player player;
+
+        QueuedMap(int id, ArrayImage image, Player player) {
+            this.id = id;
+            this.image = image;
+            this.player = player;
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+            if (obj == this) return true;
+            if (obj == null || obj.getClass() != this.getClass()) return false;
+            var that = (QueuedMap) obj;
+            return this.id == that.id &&
+                    Objects.equals(this.image, that.image) &&
+                    Objects.equals(this.player, that.player);
+        }
+
+        @Override
+        public int hashCode() {
+            return Objects.hash(id, image, player);
+        }
+
+        @Override
+        public String toString() {
+            return "QueuedMap[" +
+                    "id=" + id + ", " +
+                    "image=" + image + ", " +
+                    "player=" + player + ']';
+        }
+    }
+}

NMS-v1_13_R2/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapWrapper_v1_13_R2.java

@@ -0,0 +1,248 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.server.v1_13_R2.*;
+import org.bukkit.Material;
+import org.bukkit.World;
+import org.bukkit.*;
+import org.bukkit.craftbukkit.v1_13_R2.CraftWorld;
+import org.bukkit.craftbukkit.v1_13_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_13_R2.inventory.CraftItemStack;
+import org.bukkit.entity.ItemFrame;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.metadata.FixedMetadataValue;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+import tech.sbdevelopment.mapreflectionapi.api.MapController;
+import tech.sbdevelopment.mapreflectionapi.api.MapWrapper;
+import tech.sbdevelopment.mapreflectionapi.api.exceptions.MapLimitExceededException;
+
+import java.util.*;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.getDeclaredField;
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.setDeclaredField;
+
+public class MapWrapper_v1_13_R2 extends MapWrapper {
+    protected MapController controller = new MapController() {
+        private final Map<UUID, Integer> viewers = new HashMap<>();
+
+        @Override
+        public void addViewer(Player player) throws MapLimitExceededException {
+            if (!isViewing(player)) {
+                viewers.put(player.getUniqueId(), MapReflectionAPI.getMapManager().getNextFreeIdFor(player));
+            }
+        }
+
+        @Override
+        public void removeViewer(OfflinePlayer player) {
+            viewers.remove(player.getUniqueId());
+        }
+
+        @Override
+        public void clearViewers() {
+            for (UUID uuid : viewers.keySet()) {
+                viewers.remove(uuid);
+            }
+        }
+
+        @Override
+        public boolean isViewing(OfflinePlayer player) {
+            if (player == null) return false;
+            return viewers.containsKey(player.getUniqueId());
+        }
+
+        @Override
+        public int getMapId(OfflinePlayer player) {
+            if (isViewing(player)) {
+                return viewers.get(player.getUniqueId());
+            }
+            return -1;
+        }
+
+        @Override
+        public void update(ArrayImage content) {
+            MapWrapper duplicate = MapReflectionAPI.getMapManager().getDuplicate(content);
+            if (duplicate != null) {
+                MapWrapper_v1_13_R2.this.content = duplicate.getContent();
+                return;
+            }
+
+            MapWrapper_v1_13_R2.this.content = content;
+
+            for (UUID id : viewers.keySet()) {
+                sendContent(Bukkit.getPlayer(id));
+            }
+        }
+
+        @Override
+        public void sendContent(Player player) {
+            sendContent(player, false);
+        }
+
+        @Override
+        public void sendContent(Player player, boolean withoutQueue) {
+            if (!isViewing(player)) return;
+
+            int id = getMapId(player);
+            if (withoutQueue) {
+                MapSender_v1_13_R2.sendMap(id, MapWrapper_v1_13_R2.this.content, player);
+            } else {
+                MapSender_v1_13_R2.addToQueue(id, MapWrapper_v1_13_R2.this.content, player);
+            }
+        }
+
+        @Override
+        public void cancelSend() {
+            for (int s : viewers.values()) {
+                MapSender_v1_13_R2.cancelID(s);
+            }
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot, boolean force) {
+            if (!isViewing(player)) return;
+
+            if (player.getGameMode() == GameMode.CREATIVE && !force) return;
+
+            if (slot < 9) {
+                slot += 36;
+            } else if (slot > 35 && slot != 45) {
+                slot = 8 - (slot - 36);
+            }
+
+            CraftPlayer craftPlayer = (CraftPlayer) player;
+            int windowId = craftPlayer.getHandle().defaultContainer.windowId;
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            net.minecraft.server.v1_13_R2.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+
+            PacketPlayOutSetSlot packet = new PacketPlayOutSetSlot(windowId, slot, nmsStack);
+            ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet);
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot) {
+            showInInventory(player, slot, false);
+        }
+
+        @Override
+        public void showInHand(Player player, boolean force) {
+            if (player.getInventory().getItemInMainHand().getType() != Material.FILLED_MAP && !force) return;
+            showInInventory(player, player.getInventory().getHeldItemSlot(), force);
+        }
+
+        @Override
+        public void showInHand(Player player) {
+            showInHand(player, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame) {
+            showInFrame(player, frame, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame, boolean force) {
+            if (frame.getItem().getType() != Material.FILLED_MAP && !force) return;
+            showInFrame(player, frame.getEntityId());
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId) {
+            showInFrame(player, entityId, null);
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId, String debugInfo) {
+            if (!isViewing(player)) return;
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            if (debugInfo != null) {
+                ItemMeta itemMeta = stack.getItemMeta();
+                itemMeta.setDisplayName(debugInfo);
+                stack.setItemMeta(itemMeta);
+            }
+
+            Bukkit.getScheduler().runTask(MapReflectionAPI.getInstance(), () -> {
+                ItemFrame frame = getItemFrameById(player.getWorld(), entityId);
+                if (frame != null) {
+                    frame.removeMetadata("MAP_WRAPPER_REF", MapReflectionAPI.getInstance());
+                    frame.setMetadata("MAP_WRAPPER_REF", new FixedMetadataValue(MapReflectionAPI.getInstance(), MapWrapper_v1_13_R2.this));
+                }
+
+                sendItemFramePacket(player, entityId, stack, getMapId(player));
+            });
+        }
+
+        @Override
+        public void clearFrame(Player player, int entityId) {
+
+        }
+
+        @Override
+        public void clearFrame(Player player, ItemFrame frame) {
+
+        }
+
+        @Override
+        public ItemFrame getItemFrameById(World world, int entityId) {
+            CraftWorld craftWorld = (CraftWorld) world;
+
+            Entity entity = craftWorld.getHandle().getEntity(entityId);
+            if (entity == null) return null;
+
+            org.bukkit.entity.Entity bukkitEntity = entity.getBukkitEntity();
+            if (bukkitEntity instanceof ItemFrame) return (ItemFrame) bukkitEntity;
+
+            return null;
+        }
+
+        private void sendItemFramePacket(Player player, int entityId, ItemStack stack, int mapId) {
+            net.minecraft.server.v1_13_R2.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+            nmsStack.getOrCreateTag().setInt("map", mapId); //getOrCreateTag putInt
+
+            PacketPlayOutEntityMetadata packet = new PacketPlayOutEntityMetadata(entityId, new DataWatcher(null), true);
+
+            try {
+                List<DataWatcher.Item<?>> list = new ArrayList<>();
+                DataWatcherObject<net.minecraft.server.v1_13_R2.ItemStack> dataWatcherObject = (DataWatcherObject<net.minecraft.server.v1_13_R2.ItemStack>) getDeclaredField(EntityItemFrame.class, "e");
+                DataWatcher.Item<?> dataWatcherItem = new DataWatcher.Item<>(dataWatcherObject, nmsStack);
+                list.add(dataWatcherItem);
+                setDeclaredField(packet, "b", list);
+            } catch (Exception e) {
+                e.printStackTrace();
+                return;
+            }
+
+            ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet);
+        }
+    };
+
+    public MapWrapper_v1_13_R2(ArrayImage image) {
+        super(image);
+    }
+
+    @Override
+    public MapController getController() {
+        return controller;
+    }
+}

NMS-v1_13_R2/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/PacketListener_v1_13_R2.java

@@ -0,0 +1,123 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import io.netty.channel.*;
+import net.minecraft.server.v1_13_R2.*;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_13_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_13_R2.inventory.CraftItemStack;
+import org.bukkit.entity.Player;
+import org.bukkit.util.Vector;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.events.CreateInventoryMapUpdateEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapCancelEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapInteractEvent;
+import tech.sbdevelopment.mapreflectionapi.listeners.PacketListener;
+
+import java.util.concurrent.TimeUnit;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.getDeclaredField;
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.setDeclaredField;
+
+public class PacketListener_v1_13_R2 extends PacketListener {
+    @Override
+    protected void injectPlayer(Player p) {
+        ChannelDuplexHandler channelDuplexHandler = new ChannelDuplexHandler() {
+            @Override
+            //On send packet
+            public void write(ChannelHandlerContext ctx, Object packet, ChannelPromise promise) throws Exception {
+                if (packet instanceof PacketPlayOutMap) {
+                    PacketPlayOutMap packetPlayOutMap = (PacketPlayOutMap) packet;
+
+                    int id = (int) getDeclaredField(packetPlayOutMap, "a");
+                    if (id < 0) {
+                        //It's one of our maps, invert ID and let through!
+                        int newId = -id;
+                        setDeclaredField(packetPlayOutMap, "a", newId); //mapId
+                    } else {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapCancelEvent event = new MapCancelEvent(p, id, async);
+                        if (MapReflectionAPI.getMapManager().isIdUsedBy(p, id)) event.setCancelled(true);
+                        if (event.getHandlers().getRegisteredListeners().length > 0)
+                            Bukkit.getPluginManager().callEvent(event);
+
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.write(ctx, packet, promise);
+            }
+
+            @Override
+            //On receive packet
+            public void channelRead(ChannelHandlerContext ctx, Object packet) throws Exception {
+                if (packet instanceof PacketPlayInUseEntity) {
+                    PacketPlayInUseEntity packetPlayInUseEntity = (PacketPlayInUseEntity) packet;
+
+                    int entityId = (int) getDeclaredField(packetPlayInUseEntity, "a"); //entityId
+                    PacketPlayInUseEntity.EnumEntityUseAction action = packetPlayInUseEntity.b(); //action
+                    EnumHand hand = packetPlayInUseEntity.c(); //hand
+                    Vec3D pos = packetPlayInUseEntity.d(); //pos
+
+                    if (Bukkit.getScheduler().callSyncMethod(plugin, () -> {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapInteractEvent event = new MapInteractEvent(p, entityId, action.ordinal(), pos != null ? vec3DToVector(pos) : null, hand != null ? hand.ordinal() : 0, async);
+                        if (event.getFrame() != null && event.getMapWrapper() != null) {
+                            Bukkit.getPluginManager().callEvent(event);
+                            return event.isCancelled();
+                        }
+                        return false;
+                    }).get(1, TimeUnit.SECONDS)) return;
+                } else if (packet instanceof PacketPlayInSetCreativeSlot) {
+                    PacketPlayInSetCreativeSlot packetPlayInSetCreativeSlot = (PacketPlayInSetCreativeSlot) packet;
+
+                    int slot = packetPlayInSetCreativeSlot.b();
+                    ItemStack item = packetPlayInSetCreativeSlot.getItemStack();
+
+                    boolean async = !plugin.getServer().isPrimaryThread();
+                    CreateInventoryMapUpdateEvent event = new CreateInventoryMapUpdateEvent(p, slot, CraftItemStack.asBukkitCopy(item), async);
+                    if (event.getMapWrapper() != null) {
+                        Bukkit.getPluginManager().callEvent(event);
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.channelRead(ctx, packet);
+            }
+        };
+
+        ChannelPipeline pipeline = ((CraftPlayer) p).getHandle().playerConnection.networkManager.channel.pipeline();
+        pipeline.addBefore("packet_handler", p.getName(), channelDuplexHandler);
+    }
+
+    @Override
+    public void removePlayer(Player p) {
+        Channel channel = ((CraftPlayer) p).getHandle().playerConnection.networkManager.channel;
+        channel.eventLoop().submit(() -> channel.pipeline().remove(p.getName()));
+    }
+
+    @Override
+    protected Vector vec3DToVector(Object vec3d) {
+        if (!(vec3d instanceof Vec3D)) return new Vector(0, 0, 0);
+
+        Vec3D vec3dObj = (Vec3D) vec3d;
+        return new Vector(vec3dObj.x, vec3dObj.y, vec3dObj.z);
+    }
+}

NMS-v1_14_R1/pom.xml

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ This file is part of MapReflectionAPI.
+  ~ Copyright (c) 2023 inventivetalent / SBDevelopment - All Rights Reserved
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>MapReflectionAPI</artifactId>
+        <groupId>tech.sbdevelopment</groupId>
+        <version>${revision}</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>MapReflectionAPI-NMS-v1_14_R1</artifactId>
+
+    <properties>
+        <NMSVersion>1.14.4-R0.1-SNAPSHOT</NMSVersion>
+        <jdk.version>11</jdk.version>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <release>${jdk.version}</release>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-deploy-plugin</artifactId>
+                <version>3.1.1</version>
+                <configuration>
+                    <skip>true</skip>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.bukkit</groupId>
+            <artifactId>craftbukkit</artifactId>
+            <version>${NMSVersion}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-API</artifactId>
+            <version>${revision}</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

NMS-v1_14_R1/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapSender_v1_14_R1.java

@@ -0,0 +1,167 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.server.v1_14_R1.PacketPlayOutMap;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_14_R1.entity.CraftPlayer;
+import org.bukkit.entity.Player;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+
+/**
+ * The {@link MapSender_v1_14_R1} sends the Map packets to players.
+ */
+public class MapSender_v1_14_R1 {
+    private static final List<QueuedMap> sendQueue = new ArrayList<>();
+    private static int senderID = -1;
+
+    private MapSender_v1_14_R1() {
+    }
+
+    /**
+     * Add a map to the send queue
+     *
+     * @param id      The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void addToQueue(final int id, final ArrayImage content, final Player player) {
+        QueuedMap toSend = new QueuedMap(id, content, player);
+        if (sendQueue.contains(toSend)) return;
+        sendQueue.add(toSend);
+
+        runSender();
+    }
+
+    /**
+     * Cancels a senderID in the sender queue
+     *
+     * @param s The senderID to cancel
+     */
+    public static void cancelID(int s) {
+        sendQueue.removeIf(queuedMap -> queuedMap.id == s);
+    }
+
+    /**
+     * Run the sender task
+     */
+    private static void runSender() {
+        if (Bukkit.getScheduler().isQueued(senderID) || Bukkit.getScheduler().isCurrentlyRunning(senderID) || sendQueue.isEmpty())
+            return;
+
+        senderID = Bukkit.getScheduler().scheduleSyncRepeatingTask(MapReflectionAPI.getInstance(), () -> {
+            if (sendQueue.isEmpty()) return;
+
+            for (int i = 0; i < Math.min(sendQueue.size(), 10 + 1); i++) {
+                QueuedMap current = sendQueue.get(0);
+                if (current == null) return;
+
+                sendMap(current.id, current.image, current.player);
+
+                if (!sendQueue.isEmpty()) sendQueue.remove(0);
+            }
+        }, 0, 2);
+    }
+
+    /**
+     * Send a map to a player
+     *
+     * @param id0     The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void sendMap(final int id0, final ArrayImage content, final Player player) {
+        if (player == null || !player.isOnline()) {
+            List<QueuedMap> toRemove = new ArrayList<>();
+            for (QueuedMap qMap : sendQueue) {
+                if (qMap == null) continue;
+
+                if (qMap.player == null || !qMap.player.isOnline()) {
+                    toRemove.add(qMap);
+                }
+            }
+            Bukkit.getScheduler().cancelTask(senderID);
+            sendQueue.removeAll(toRemove);
+
+            return;
+        }
+
+        final int id = -id0;
+        Bukkit.getScheduler().runTaskAsynchronously(MapReflectionAPI.getInstance(), () -> {
+            try {
+                PacketPlayOutMap packet = new PacketPlayOutMap(
+                        id, //ID
+                        (byte) 0, //Scale
+                        false, //Tracking position
+                        false, //Locked
+                        new ArrayList<>(), //Icons
+                        content.array, //Data
+                        content.minX, //X pos
+                        content.minY, //Y pos
+                        content.maxX, //X size (2nd X pos)
+                        content.maxY //Y size (2nd Y pos)
+                );
+
+                ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        });
+    }
+
+    static final class QueuedMap {
+        private final int id;
+        private final ArrayImage image;
+        private final Player player;
+
+        QueuedMap(int id, ArrayImage image, Player player) {
+            this.id = id;
+            this.image = image;
+            this.player = player;
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+            if (obj == this) return true;
+            if (obj == null || obj.getClass() != this.getClass()) return false;
+            var that = (QueuedMap) obj;
+            return this.id == that.id &&
+                    Objects.equals(this.image, that.image) &&
+                    Objects.equals(this.player, that.player);
+        }
+
+        @Override
+        public int hashCode() {
+            return Objects.hash(id, image, player);
+        }
+
+        @Override
+        public String toString() {
+            return "QueuedMap[" +
+                    "id=" + id + ", " +
+                    "image=" + image + ", " +
+                    "player=" + player + ']';
+        }
+    }
+}

NMS-v1_14_R1/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapWrapper_v1_14_R1.java

@@ -0,0 +1,248 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.server.v1_14_R1.*;
+import org.bukkit.Material;
+import org.bukkit.World;
+import org.bukkit.*;
+import org.bukkit.craftbukkit.v1_14_R1.CraftWorld;
+import org.bukkit.craftbukkit.v1_14_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftItemStack;
+import org.bukkit.entity.ItemFrame;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.metadata.FixedMetadataValue;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+import tech.sbdevelopment.mapreflectionapi.api.MapController;
+import tech.sbdevelopment.mapreflectionapi.api.MapWrapper;
+import tech.sbdevelopment.mapreflectionapi.api.exceptions.MapLimitExceededException;
+
+import java.util.*;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.getDeclaredField;
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.setDeclaredField;
+
+public class MapWrapper_v1_14_R1 extends MapWrapper {
+    protected MapController controller = new MapController() {
+        private final Map<UUID, Integer> viewers = new HashMap<>();
+
+        @Override
+        public void addViewer(Player player) throws MapLimitExceededException {
+            if (!isViewing(player)) {
+                viewers.put(player.getUniqueId(), MapReflectionAPI.getMapManager().getNextFreeIdFor(player));
+            }
+        }
+
+        @Override
+        public void removeViewer(OfflinePlayer player) {
+            viewers.remove(player.getUniqueId());
+        }
+
+        @Override
+        public void clearViewers() {
+            for (UUID uuid : viewers.keySet()) {
+                viewers.remove(uuid);
+            }
+        }
+
+        @Override
+        public boolean isViewing(OfflinePlayer player) {
+            if (player == null) return false;
+            return viewers.containsKey(player.getUniqueId());
+        }
+
+        @Override
+        public int getMapId(OfflinePlayer player) {
+            if (isViewing(player)) {
+                return viewers.get(player.getUniqueId());
+            }
+            return -1;
+        }
+
+        @Override
+        public void update(ArrayImage content) {
+            MapWrapper duplicate = MapReflectionAPI.getMapManager().getDuplicate(content);
+            if (duplicate != null) {
+                MapWrapper_v1_14_R1.this.content = duplicate.getContent();
+                return;
+            }
+
+            MapWrapper_v1_14_R1.this.content = content;
+
+            for (UUID id : viewers.keySet()) {
+                sendContent(Bukkit.getPlayer(id));
+            }
+        }
+
+        @Override
+        public void sendContent(Player player) {
+            sendContent(player, false);
+        }
+
+        @Override
+        public void sendContent(Player player, boolean withoutQueue) {
+            if (!isViewing(player)) return;
+
+            int id = getMapId(player);
+            if (withoutQueue) {
+                MapSender_v1_14_R1.sendMap(id, MapWrapper_v1_14_R1.this.content, player);
+            } else {
+                MapSender_v1_14_R1.addToQueue(id, MapWrapper_v1_14_R1.this.content, player);
+            }
+        }
+
+        @Override
+        public void cancelSend() {
+            for (int s : viewers.values()) {
+                MapSender_v1_14_R1.cancelID(s);
+            }
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot, boolean force) {
+            if (!isViewing(player)) return;
+
+            if (player.getGameMode() == GameMode.CREATIVE && !force) return;
+
+            if (slot < 9) {
+                slot += 36;
+            } else if (slot > 35 && slot != 45) {
+                slot = 8 - (slot - 36);
+            }
+
+            CraftPlayer craftPlayer = (CraftPlayer) player;
+            int windowId = craftPlayer.getHandle().defaultContainer.windowId;
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            net.minecraft.server.v1_14_R1.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+
+            PacketPlayOutSetSlot packet = new PacketPlayOutSetSlot(windowId, slot, nmsStack);
+            ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet);
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot) {
+            showInInventory(player, slot, false);
+        }
+
+        @Override
+        public void showInHand(Player player, boolean force) {
+            if (player.getInventory().getItemInMainHand().getType() != Material.FILLED_MAP && !force) return;
+            showInInventory(player, player.getInventory().getHeldItemSlot(), force);
+        }
+
+        @Override
+        public void showInHand(Player player) {
+            showInHand(player, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame) {
+            showInFrame(player, frame, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame, boolean force) {
+            if (frame.getItem().getType() != Material.FILLED_MAP && !force) return;
+            showInFrame(player, frame.getEntityId());
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId) {
+            showInFrame(player, entityId, null);
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId, String debugInfo) {
+            if (!isViewing(player)) return;
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            if (debugInfo != null) {
+                ItemMeta itemMeta = stack.getItemMeta();
+                itemMeta.setDisplayName(debugInfo);
+                stack.setItemMeta(itemMeta);
+            }
+
+            Bukkit.getScheduler().runTask(MapReflectionAPI.getInstance(), () -> {
+                ItemFrame frame = getItemFrameById(player.getWorld(), entityId);
+                if (frame != null) {
+                    frame.removeMetadata("MAP_WRAPPER_REF", MapReflectionAPI.getInstance());
+                    frame.setMetadata("MAP_WRAPPER_REF", new FixedMetadataValue(MapReflectionAPI.getInstance(), MapWrapper_v1_14_R1.this));
+                }
+
+                sendItemFramePacket(player, entityId, stack, getMapId(player));
+            });
+        }
+
+        @Override
+        public void clearFrame(Player player, int entityId) {
+
+        }
+
+        @Override
+        public void clearFrame(Player player, ItemFrame frame) {
+
+        }
+
+        @Override
+        public ItemFrame getItemFrameById(World world, int entityId) {
+            CraftWorld craftWorld = (CraftWorld) world;
+
+            Entity entity = craftWorld.getHandle().getEntity(entityId);
+            if (entity == null) return null;
+
+            org.bukkit.entity.Entity bukkitEntity = entity.getBukkitEntity();
+            if (bukkitEntity instanceof ItemFrame) return (ItemFrame) bukkitEntity;
+
+            return null;
+        }
+
+        private void sendItemFramePacket(Player player, int entityId, ItemStack stack, int mapId) {
+            net.minecraft.server.v1_14_R1.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+            nmsStack.getOrCreateTag().setInt("map", mapId); //getOrCreateTag putInt
+
+            PacketPlayOutEntityMetadata packet = new PacketPlayOutEntityMetadata(entityId, new DataWatcher(null), true);
+
+            try {
+                List<DataWatcher.Item<?>> list = new ArrayList<>();
+                DataWatcherObject<net.minecraft.server.v1_14_R1.ItemStack> dataWatcherObject = (DataWatcherObject<net.minecraft.server.v1_14_R1.ItemStack>) getDeclaredField(EntityItemFrame.class, "ITEM");
+                DataWatcher.Item<?> dataWatcherItem = new DataWatcher.Item<>(dataWatcherObject, nmsStack);
+                list.add(dataWatcherItem);
+                setDeclaredField(packet, "b", list);
+            } catch (Exception e) {
+                e.printStackTrace();
+                return;
+            }
+
+            ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet);
+        }
+    };
+
+    public MapWrapper_v1_14_R1(ArrayImage image) {
+        super(image);
+    }
+
+    @Override
+    public MapController getController() {
+        return controller;
+    }
+}

NMS-v1_14_R1/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/PacketListener_v1_14_R1.java

@@ -0,0 +1,123 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import io.netty.channel.*;
+import net.minecraft.server.v1_14_R1.*;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_14_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_14_R1.inventory.CraftItemStack;
+import org.bukkit.entity.Player;
+import org.bukkit.util.Vector;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.events.CreateInventoryMapUpdateEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapCancelEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapInteractEvent;
+import tech.sbdevelopment.mapreflectionapi.listeners.PacketListener;
+
+import java.util.concurrent.TimeUnit;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.getDeclaredField;
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.setDeclaredField;
+
+public class PacketListener_v1_14_R1 extends PacketListener {
+    @Override
+    protected void injectPlayer(Player p) {
+        ChannelDuplexHandler channelDuplexHandler = new ChannelDuplexHandler() {
+            @Override
+            //On send packet
+            public void write(ChannelHandlerContext ctx, Object packet, ChannelPromise promise) throws Exception {
+                if (packet instanceof PacketPlayOutMap) {
+                    PacketPlayOutMap packetPlayOutMap = (PacketPlayOutMap) packet;
+
+                    int id = (int) getDeclaredField(packetPlayOutMap, "a");
+                    if (id < 0) {
+                        //It's one of our maps, invert ID and let through!
+                        int newId = -id;
+                        setDeclaredField(packetPlayOutMap, "a", newId); //mapId
+                    } else {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapCancelEvent event = new MapCancelEvent(p, id, async);
+                        if (MapReflectionAPI.getMapManager().isIdUsedBy(p, id)) event.setCancelled(true);
+                        if (event.getHandlers().getRegisteredListeners().length > 0)
+                            Bukkit.getPluginManager().callEvent(event);
+
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.write(ctx, packet, promise);
+            }
+
+            @Override
+            //On receive packet
+            public void channelRead(ChannelHandlerContext ctx, Object packet) throws Exception {
+                if (packet instanceof PacketPlayInUseEntity) {
+                    PacketPlayInUseEntity packetPlayInUseEntity = (PacketPlayInUseEntity) packet;
+
+                    int entityId = (int) getDeclaredField(packetPlayInUseEntity, "a"); //entityId
+                    PacketPlayInUseEntity.EnumEntityUseAction action = packetPlayInUseEntity.b(); //action
+                    EnumHand hand = packetPlayInUseEntity.c(); //hand
+                    Vec3D pos = packetPlayInUseEntity.d(); //pos
+
+                    if (Bukkit.getScheduler().callSyncMethod(plugin, () -> {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapInteractEvent event = new MapInteractEvent(p, entityId, action.ordinal(), pos != null ? vec3DToVector(pos) : null, hand != null ? hand.ordinal() : 0, async);
+                        if (event.getFrame() != null && event.getMapWrapper() != null) {
+                            Bukkit.getPluginManager().callEvent(event);
+                            return event.isCancelled();
+                        }
+                        return false;
+                    }).get(1, TimeUnit.SECONDS)) return;
+                } else if (packet instanceof PacketPlayInSetCreativeSlot) {
+                    PacketPlayInSetCreativeSlot packetPlayInSetCreativeSlot = (PacketPlayInSetCreativeSlot) packet;
+
+                    int slot = packetPlayInSetCreativeSlot.b();
+                    ItemStack item = packetPlayInSetCreativeSlot.getItemStack();
+
+                    boolean async = !plugin.getServer().isPrimaryThread();
+                    CreateInventoryMapUpdateEvent event = new CreateInventoryMapUpdateEvent(p, slot, CraftItemStack.asBukkitCopy(item), async);
+                    if (event.getMapWrapper() != null) {
+                        Bukkit.getPluginManager().callEvent(event);
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.channelRead(ctx, packet);
+            }
+        };
+
+        ChannelPipeline pipeline = ((CraftPlayer) p).getHandle().playerConnection.networkManager.channel.pipeline();
+        pipeline.addBefore("packet_handler", p.getName(), channelDuplexHandler);
+    }
+
+    @Override
+    public void removePlayer(Player p) {
+        Channel channel = ((CraftPlayer) p).getHandle().playerConnection.networkManager.channel;
+        channel.eventLoop().submit(() -> channel.pipeline().remove(p.getName()));
+    }
+
+    @Override
+    protected Vector vec3DToVector(Object vec3d) {
+        if (!(vec3d instanceof Vec3D)) return new Vector(0, 0, 0);
+
+        Vec3D vec3dObj = (Vec3D) vec3d;
+        return new Vector(vec3dObj.x, vec3dObj.y, vec3dObj.z);
+    }
+}

NMS-v1_15_R1/pom.xml

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ This file is part of MapReflectionAPI.
+  ~ Copyright (c) 2023 inventivetalent / SBDevelopment - All Rights Reserved
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>MapReflectionAPI</artifactId>
+        <groupId>tech.sbdevelopment</groupId>
+        <version>${revision}</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>MapReflectionAPI-NMS-v1_15_R1</artifactId>
+
+    <properties>
+        <NMSVersion>1.15.2-R0.1-SNAPSHOT</NMSVersion>
+        <jdk.version>11</jdk.version>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <release>${jdk.version}</release>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-deploy-plugin</artifactId>
+                <version>3.1.1</version>
+                <configuration>
+                    <skip>true</skip>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.bukkit</groupId>
+            <artifactId>craftbukkit</artifactId>
+            <version>${NMSVersion}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-API</artifactId>
+            <version>${revision}</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

NMS-v1_15_R1/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapSender_v1_15_R1.java

@@ -0,0 +1,167 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.server.v1_15_R1.PacketPlayOutMap;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer;
+import org.bukkit.entity.Player;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+
+/**
+ * The {@link MapSender_v1_15_R1} sends the Map packets to players.
+ */
+public class MapSender_v1_15_R1 {
+    private static final List<QueuedMap> sendQueue = new ArrayList<>();
+    private static int senderID = -1;
+
+    private MapSender_v1_15_R1() {
+    }
+
+    /**
+     * Add a map to the send queue
+     *
+     * @param id      The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void addToQueue(final int id, final ArrayImage content, final Player player) {
+        QueuedMap toSend = new QueuedMap(id, content, player);
+        if (sendQueue.contains(toSend)) return;
+        sendQueue.add(toSend);
+
+        runSender();
+    }
+
+    /**
+     * Cancels a senderID in the sender queue
+     *
+     * @param s The senderID to cancel
+     */
+    public static void cancelID(int s) {
+        sendQueue.removeIf(queuedMap -> queuedMap.id == s);
+    }
+
+    /**
+     * Run the sender task
+     */
+    private static void runSender() {
+        if (Bukkit.getScheduler().isQueued(senderID) || Bukkit.getScheduler().isCurrentlyRunning(senderID) || sendQueue.isEmpty())
+            return;
+
+        senderID = Bukkit.getScheduler().scheduleSyncRepeatingTask(MapReflectionAPI.getInstance(), () -> {
+            if (sendQueue.isEmpty()) return;
+
+            for (int i = 0; i < Math.min(sendQueue.size(), 10 + 1); i++) {
+                QueuedMap current = sendQueue.get(0);
+                if (current == null) return;
+
+                sendMap(current.id, current.image, current.player);
+
+                if (!sendQueue.isEmpty()) sendQueue.remove(0);
+            }
+        }, 0, 2);
+    }
+
+    /**
+     * Send a map to a player
+     *
+     * @param id0      The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void sendMap(final int id0, final ArrayImage content, final Player player) {
+        if (player == null || !player.isOnline()) {
+            List<QueuedMap> toRemove = new ArrayList<>();
+            for (QueuedMap qMap : sendQueue) {
+                if (qMap == null) continue;
+
+                if (qMap.player == null || !qMap.player.isOnline()) {
+                    toRemove.add(qMap);
+                }
+            }
+            Bukkit.getScheduler().cancelTask(senderID);
+            sendQueue.removeAll(toRemove);
+
+            return;
+        }
+
+        final int id = -id0;
+        Bukkit.getScheduler().runTaskAsynchronously(MapReflectionAPI.getInstance(), () -> {
+            try {
+                PacketPlayOutMap packet = new PacketPlayOutMap(
+                        id, //ID
+                        (byte) 0, //Scale
+                        false, //Tracking position
+                        false, //Locked
+                        new ArrayList<>(), //Icons
+                        content.array, //Data
+                        content.minX, //X pos
+                        content.minY, //Y pos
+                        content.maxX, //X size (2nd X pos)
+                        content.maxY //Y size (2nd Y pos)
+                );
+
+                ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        });
+    }
+
+    static final class QueuedMap {
+        private final int id;
+        private final ArrayImage image;
+        private final Player player;
+
+        QueuedMap(int id, ArrayImage image, Player player) {
+            this.id = id;
+            this.image = image;
+            this.player = player;
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+            if (obj == this) return true;
+            if (obj == null || obj.getClass() != this.getClass()) return false;
+            var that = (QueuedMap) obj;
+            return this.id == that.id &&
+                    Objects.equals(this.image, that.image) &&
+                    Objects.equals(this.player, that.player);
+        }
+
+        @Override
+        public int hashCode() {
+            return Objects.hash(id, image, player);
+        }
+
+        @Override
+        public String toString() {
+            return "QueuedMap[" +
+                    "id=" + id + ", " +
+                    "image=" + image + ", " +
+                    "player=" + player + ']';
+        }
+    }
+}

NMS-v1_15_R1/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapWrapper_v1_15_R1.java

@@ -0,0 +1,249 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.server.v1_15_R1.*;
+import org.bukkit.Material;
+import org.bukkit.World;
+import org.bukkit.*;
+import org.bukkit.craftbukkit.v1_15_R1.CraftWorld;
+import org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftItemStack;
+import org.bukkit.entity.ItemFrame;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.metadata.FixedMetadataValue;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+import tech.sbdevelopment.mapreflectionapi.api.MapController;
+import tech.sbdevelopment.mapreflectionapi.api.MapWrapper;
+import tech.sbdevelopment.mapreflectionapi.api.exceptions.MapLimitExceededException;
+
+import java.util.*;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.getDeclaredField;
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.setDeclaredField;
+
+public class MapWrapper_v1_15_R1 extends MapWrapper {
+
+    protected MapController controller = new MapController() {
+        private final Map<UUID, Integer> viewers = new HashMap<>();
+
+        @Override
+        public void addViewer(Player player) throws MapLimitExceededException {
+            if (!isViewing(player)) {
+                viewers.put(player.getUniqueId(), MapReflectionAPI.getMapManager().getNextFreeIdFor(player));
+            }
+        }
+
+        @Override
+        public void removeViewer(OfflinePlayer player) {
+            viewers.remove(player.getUniqueId());
+        }
+
+        @Override
+        public void clearViewers() {
+            for (UUID uuid : viewers.keySet()) {
+                viewers.remove(uuid);
+            }
+        }
+
+        @Override
+        public boolean isViewing(OfflinePlayer player) {
+            if (player == null) return false;
+            return viewers.containsKey(player.getUniqueId());
+        }
+
+        @Override
+        public int getMapId(OfflinePlayer player) {
+            if (isViewing(player)) {
+                return viewers.get(player.getUniqueId());
+            }
+            return -1;
+        }
+
+        @Override
+        public void update(ArrayImage content) {
+            MapWrapper duplicate = MapReflectionAPI.getMapManager().getDuplicate(content);
+            if (duplicate != null) {
+                MapWrapper_v1_15_R1.this.content = duplicate.getContent();
+                return;
+            }
+
+            MapWrapper_v1_15_R1.this.content = content;
+
+            for (UUID id : viewers.keySet()) {
+                sendContent(Bukkit.getPlayer(id));
+            }
+        }
+
+        @Override
+        public void sendContent(Player player) {
+            sendContent(player, false);
+        }
+
+        @Override
+        public void sendContent(Player player, boolean withoutQueue) {
+            if (!isViewing(player)) return;
+
+            int id = getMapId(player);
+            if (withoutQueue) {
+                MapSender_v1_15_R1.sendMap(id, MapWrapper_v1_15_R1.this.content, player);
+            } else {
+                MapSender_v1_15_R1.addToQueue(id, MapWrapper_v1_15_R1.this.content, player);
+            }
+        }
+
+        @Override
+        public void cancelSend() {
+            for (int s : viewers.values()) {
+                MapSender_v1_15_R1.cancelID(s);
+            }
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot, boolean force) {
+            if (!isViewing(player)) return;
+
+            if (player.getGameMode() == GameMode.CREATIVE && !force) return;
+
+            if (slot < 9) {
+                slot += 36;
+            } else if (slot > 35 && slot != 45) {
+                slot = 8 - (slot - 36);
+            }
+
+            CraftPlayer craftPlayer = (CraftPlayer) player;
+            int windowId = craftPlayer.getHandle().defaultContainer.windowId;
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            net.minecraft.server.v1_15_R1.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+
+            PacketPlayOutSetSlot packet = new PacketPlayOutSetSlot(windowId, slot, nmsStack);
+            ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet);
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot) {
+            showInInventory(player, slot, false);
+        }
+
+        @Override
+        public void showInHand(Player player, boolean force) {
+            if (player.getInventory().getItemInMainHand().getType() != Material.FILLED_MAP && !force) return;
+            showInInventory(player, player.getInventory().getHeldItemSlot(), force);
+        }
+
+        @Override
+        public void showInHand(Player player) {
+            showInHand(player, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame) {
+            showInFrame(player, frame, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame, boolean force) {
+            if (frame.getItem().getType() != Material.FILLED_MAP && !force) return;
+            showInFrame(player, frame.getEntityId());
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId) {
+            showInFrame(player, entityId, null);
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId, String debugInfo) {
+            if (!isViewing(player)) return;
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            if (debugInfo != null) {
+                ItemMeta itemMeta = stack.getItemMeta();
+                itemMeta.setDisplayName(debugInfo);
+                stack.setItemMeta(itemMeta);
+            }
+
+            Bukkit.getScheduler().runTask(MapReflectionAPI.getInstance(), () -> {
+                ItemFrame frame = getItemFrameById(player.getWorld(), entityId);
+                if (frame != null) {
+                    frame.removeMetadata("MAP_WRAPPER_REF", MapReflectionAPI.getInstance());
+                    frame.setMetadata("MAP_WRAPPER_REF", new FixedMetadataValue(MapReflectionAPI.getInstance(), MapWrapper_v1_15_R1.this));
+                }
+
+                sendItemFramePacket(player, entityId, stack, getMapId(player));
+            });
+        }
+
+        @Override
+        public void clearFrame(Player player, int entityId) {
+
+        }
+
+        @Override
+        public void clearFrame(Player player, ItemFrame frame) {
+
+        }
+
+        @Override
+        public ItemFrame getItemFrameById(World world, int entityId) {
+            CraftWorld craftWorld = (CraftWorld) world;
+
+            Entity entity = craftWorld.getHandle().getEntity(entityId);
+            if (entity == null) return null;
+
+            org.bukkit.entity.Entity bukkitEntity = entity.getBukkitEntity();
+            if (bukkitEntity instanceof ItemFrame) return (ItemFrame) bukkitEntity;
+
+            return null;
+        }
+
+        private void sendItemFramePacket(Player player, int entityId, ItemStack stack, int mapId) {
+            net.minecraft.server.v1_15_R1.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+            nmsStack.getOrCreateTag().setInt("map", mapId); //getOrCreateTag putInt
+
+            PacketPlayOutEntityMetadata packet = new PacketPlayOutEntityMetadata(entityId, new DataWatcher(null), true);
+
+            try {
+                List<DataWatcher.Item<?>> list = new ArrayList<>();
+                DataWatcherObject<net.minecraft.server.v1_15_R1.ItemStack> dataWatcherObject = (DataWatcherObject<net.minecraft.server.v1_15_R1.ItemStack>) getDeclaredField(EntityItemFrame.class, "ITEM");
+                DataWatcher.Item<?> dataWatcherItem = new DataWatcher.Item<>(dataWatcherObject, nmsStack);
+                list.add(dataWatcherItem);
+                setDeclaredField(packet, "b", list);
+            } catch (Exception e) {
+                e.printStackTrace();
+                return;
+            }
+
+            ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet);
+        }
+    };
+
+    public MapWrapper_v1_15_R1(ArrayImage image) {
+        super(image);
+    }
+
+    @Override
+    public MapController getController() {
+        return controller;
+    }
+}

NMS-v1_15_R1/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/PacketListener_v1_15_R1.java

@@ -0,0 +1,123 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import io.netty.channel.*;
+import net.minecraft.server.v1_15_R1.*;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftItemStack;
+import org.bukkit.entity.Player;
+import org.bukkit.util.Vector;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.events.CreateInventoryMapUpdateEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapCancelEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapInteractEvent;
+import tech.sbdevelopment.mapreflectionapi.listeners.PacketListener;
+
+import java.util.concurrent.TimeUnit;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.getDeclaredField;
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.setDeclaredField;
+
+public class PacketListener_v1_15_R1 extends PacketListener {
+    @Override
+    protected void injectPlayer(Player p) {
+        ChannelDuplexHandler channelDuplexHandler = new ChannelDuplexHandler() {
+            @Override
+            //On send packet
+            public void write(ChannelHandlerContext ctx, Object packet, ChannelPromise promise) throws Exception {
+                if (packet instanceof PacketPlayOutMap) {
+                    PacketPlayOutMap packetPlayOutMap = (PacketPlayOutMap) packet;
+
+                    int id = (int) getDeclaredField(packetPlayOutMap, "a");
+                    if (id < 0) {
+                        //It's one of our maps, invert ID and let through!
+                        int newId = -id;
+                        setDeclaredField(packetPlayOutMap, "a", newId); //mapId
+                    } else {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapCancelEvent event = new MapCancelEvent(p, id, async);
+                        if (MapReflectionAPI.getMapManager().isIdUsedBy(p, id)) event.setCancelled(true);
+                        if (event.getHandlers().getRegisteredListeners().length > 0)
+                            Bukkit.getPluginManager().callEvent(event);
+
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.write(ctx, packet, promise);
+            }
+
+            @Override
+            //On receive packet
+            public void channelRead(ChannelHandlerContext ctx, Object packet) throws Exception {
+                if (packet instanceof PacketPlayInUseEntity) {
+                    PacketPlayInUseEntity packetPlayInUseEntity = (PacketPlayInUseEntity) packet;
+
+                    int entityId = (int) getDeclaredField(packetPlayInUseEntity, "a"); //entityId
+                    PacketPlayInUseEntity.EnumEntityUseAction action = packetPlayInUseEntity.b(); //action
+                    EnumHand hand = packetPlayInUseEntity.c(); //hand
+                    Vec3D pos = packetPlayInUseEntity.d(); //pos
+
+                    if (Bukkit.getScheduler().callSyncMethod(plugin, () -> {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapInteractEvent event = new MapInteractEvent(p, entityId, action.ordinal(), pos != null ? vec3DToVector(pos) : null, hand != null ? hand.ordinal() : 0, async);
+                        if (event.getFrame() != null && event.getMapWrapper() != null) {
+                            Bukkit.getPluginManager().callEvent(event);
+                            return event.isCancelled();
+                        }
+                        return false;
+                    }).get(1, TimeUnit.SECONDS)) return;
+                } else if (packet instanceof PacketPlayInSetCreativeSlot) {
+                    PacketPlayInSetCreativeSlot packetPlayInSetCreativeSlot = (PacketPlayInSetCreativeSlot) packet;
+
+                    int slot = packetPlayInSetCreativeSlot.b();
+                    ItemStack item = packetPlayInSetCreativeSlot.getItemStack();
+
+                    boolean async = !plugin.getServer().isPrimaryThread();
+                    CreateInventoryMapUpdateEvent event = new CreateInventoryMapUpdateEvent(p, slot, CraftItemStack.asBukkitCopy(item), async);
+                    if (event.getMapWrapper() != null) {
+                        Bukkit.getPluginManager().callEvent(event);
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.channelRead(ctx, packet);
+            }
+        };
+
+        ChannelPipeline pipeline = ((CraftPlayer) p).getHandle().playerConnection.networkManager.channel.pipeline();
+        pipeline.addBefore("packet_handler", p.getName(), channelDuplexHandler);
+    }
+
+    @Override
+    public void removePlayer(Player p) {
+        Channel channel = ((CraftPlayer) p).getHandle().playerConnection.networkManager.channel;
+        channel.eventLoop().submit(() -> channel.pipeline().remove(p.getName()));
+    }
+
+    @Override
+    protected Vector vec3DToVector(Object vec3d) {
+        if (!(vec3d instanceof Vec3D)) return new Vector(0, 0, 0);
+
+        Vec3D vec3dObj = (Vec3D) vec3d;
+        return new Vector(vec3dObj.x, vec3dObj.y, vec3dObj.z);
+    }
+}

NMS-v1_16_R3/pom.xml

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ This file is part of MapReflectionAPI.
+  ~ Copyright (c) 2023 inventivetalent / SBDevelopment - All Rights Reserved
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>MapReflectionAPI</artifactId>
+        <groupId>tech.sbdevelopment</groupId>
+        <version>${revision}</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>MapReflectionAPI-NMS-v1_16_R3</artifactId>
+
+    <properties>
+        <NMSVersion>1.16.4-R0.1-SNAPSHOT</NMSVersion>
+        <jdk.version>11</jdk.version>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <release>${jdk.version}</release>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-deploy-plugin</artifactId>
+                <version>3.1.1</version>
+                <configuration>
+                    <skip>true</skip>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.bukkit</groupId>
+            <artifactId>craftbukkit</artifactId>
+            <version>${NMSVersion}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-API</artifactId>
+            <version>${revision}</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

NMS-v1_16_R3/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapSender_v1_16_R3.java

@@ -0,0 +1,167 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.server.v1_16_R3.PacketPlayOutMap;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer;
+import org.bukkit.entity.Player;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+
+/**
+ * The {@link MapSender_v1_16_R3} sends the Map packets to players.
+ */
+public class MapSender_v1_16_R3 {
+    private static final List<QueuedMap> sendQueue = new ArrayList<>();
+    private static int senderID = -1;
+
+    private MapSender_v1_16_R3() {
+    }
+
+    /**
+     * Add a map to the send queue
+     *
+     * @param id      The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void addToQueue(final int id, final ArrayImage content, final Player player) {
+        QueuedMap toSend = new QueuedMap(id, content, player);
+        if (sendQueue.contains(toSend)) return;
+        sendQueue.add(toSend);
+
+        runSender();
+    }
+
+    /**
+     * Cancels a senderID in the sender queue
+     *
+     * @param s The senderID to cancel
+     */
+    public static void cancelID(int s) {
+        sendQueue.removeIf(queuedMap -> queuedMap.id == s);
+    }
+
+    /**
+     * Run the sender task
+     */
+    private static void runSender() {
+        if (Bukkit.getScheduler().isQueued(senderID) || Bukkit.getScheduler().isCurrentlyRunning(senderID) || sendQueue.isEmpty())
+            return;
+
+        senderID = Bukkit.getScheduler().scheduleSyncRepeatingTask(MapReflectionAPI.getInstance(), () -> {
+            if (sendQueue.isEmpty()) return;
+
+            for (int i = 0; i < Math.min(sendQueue.size(), 10 + 1); i++) {
+                QueuedMap current = sendQueue.get(0);
+                if (current == null) return;
+
+                sendMap(current.id, current.image, current.player);
+
+                if (!sendQueue.isEmpty()) sendQueue.remove(0);
+            }
+        }, 0, 2);
+    }
+
+    /**
+     * Send a map to a player
+     *
+     * @param id0      The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void sendMap(final int id0, final ArrayImage content, final Player player) {
+        if (player == null || !player.isOnline()) {
+            List<QueuedMap> toRemove = new ArrayList<>();
+            for (QueuedMap qMap : sendQueue) {
+                if (qMap == null) continue;
+
+                if (qMap.player == null || !qMap.player.isOnline()) {
+                    toRemove.add(qMap);
+                }
+            }
+            Bukkit.getScheduler().cancelTask(senderID);
+            sendQueue.removeAll(toRemove);
+
+            return;
+        }
+
+        final int id = -id0;
+        Bukkit.getScheduler().runTaskAsynchronously(MapReflectionAPI.getInstance(), () -> {
+            try {
+                PacketPlayOutMap packet = new PacketPlayOutMap(
+                        id, //ID
+                        (byte) 0, //Scale
+                        false, //Tracking position
+                        false, //Locked
+                        new ArrayList<>(), //Icons
+                        content.array, //Data
+                        content.minX, //X pos
+                        content.minY, //Y pos
+                        content.maxX, //X size (2nd X pos)
+                        content.maxY //Y size (2nd Y pos)
+                );
+
+                ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        });
+    }
+
+    static final class QueuedMap {
+        private final int id;
+        private final ArrayImage image;
+        private final Player player;
+
+        QueuedMap(int id, ArrayImage image, Player player) {
+            this.id = id;
+            this.image = image;
+            this.player = player;
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+            if (obj == this) return true;
+            if (obj == null || obj.getClass() != this.getClass()) return false;
+            var that = (QueuedMap) obj;
+            return this.id == that.id &&
+                    Objects.equals(this.image, that.image) &&
+                    Objects.equals(this.player, that.player);
+        }
+
+        @Override
+        public int hashCode() {
+            return Objects.hash(id, image, player);
+        }
+
+        @Override
+        public String toString() {
+            return "QueuedMap[" +
+                    "id=" + id + ", " +
+                    "image=" + image + ", " +
+                    "player=" + player + ']';
+        }
+    }
+}

NMS-v1_16_R3/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapWrapper_v1_16_R3.java

@@ -0,0 +1,248 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.server.v1_16_R3.*;
+import org.bukkit.Material;
+import org.bukkit.World;
+import org.bukkit.*;
+import org.bukkit.craftbukkit.v1_16_R3.CraftWorld;
+import org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftItemStack;
+import org.bukkit.entity.ItemFrame;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.metadata.FixedMetadataValue;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+import tech.sbdevelopment.mapreflectionapi.api.MapController;
+import tech.sbdevelopment.mapreflectionapi.api.MapWrapper;
+import tech.sbdevelopment.mapreflectionapi.api.exceptions.MapLimitExceededException;
+
+import java.util.*;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.getDeclaredField;
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.setDeclaredField;
+
+public class MapWrapper_v1_16_R3 extends MapWrapper {
+    protected MapController controller = new MapController() {
+        private final Map<UUID, Integer> viewers = new HashMap<>();
+
+        @Override
+        public void addViewer(Player player) throws MapLimitExceededException {
+            if (!isViewing(player)) {
+                viewers.put(player.getUniqueId(), MapReflectionAPI.getMapManager().getNextFreeIdFor(player));
+            }
+        }
+
+        @Override
+        public void removeViewer(OfflinePlayer player) {
+            viewers.remove(player.getUniqueId());
+        }
+
+        @Override
+        public void clearViewers() {
+            for (UUID uuid : viewers.keySet()) {
+                viewers.remove(uuid);
+            }
+        }
+
+        @Override
+        public boolean isViewing(OfflinePlayer player) {
+            if (player == null) return false;
+            return viewers.containsKey(player.getUniqueId());
+        }
+
+        @Override
+        public int getMapId(OfflinePlayer player) {
+            if (isViewing(player)) {
+                return viewers.get(player.getUniqueId());
+            }
+            return -1;
+        }
+
+        @Override
+        public void update(ArrayImage content) {
+            MapWrapper duplicate = MapReflectionAPI.getMapManager().getDuplicate(content);
+            if (duplicate != null) {
+                MapWrapper_v1_16_R3.this.content = duplicate.getContent();
+                return;
+            }
+
+            MapWrapper_v1_16_R3.this.content = content;
+
+            for (UUID id : viewers.keySet()) {
+                sendContent(Bukkit.getPlayer(id));
+            }
+        }
+
+        @Override
+        public void sendContent(Player player) {
+            sendContent(player, false);
+        }
+
+        @Override
+        public void sendContent(Player player, boolean withoutQueue) {
+            if (!isViewing(player)) return;
+
+            int id = getMapId(player);
+            if (withoutQueue) {
+                MapSender_v1_16_R3.sendMap(id, MapWrapper_v1_16_R3.this.content, player);
+            } else {
+                MapSender_v1_16_R3.addToQueue(id, MapWrapper_v1_16_R3.this.content, player);
+            }
+        }
+
+        @Override
+        public void cancelSend() {
+            for (int s : viewers.values()) {
+                MapSender_v1_16_R3.cancelID(s);
+            }
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot, boolean force) {
+            if (!isViewing(player)) return;
+
+            if (player.getGameMode() == GameMode.CREATIVE && !force) return;
+
+            if (slot < 9) {
+                slot += 36;
+            } else if (slot > 35 && slot != 45) {
+                slot = 8 - (slot - 36);
+            }
+
+            CraftPlayer craftPlayer = (CraftPlayer) player;
+            int windowId = craftPlayer.getHandle().defaultContainer.windowId;
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            net.minecraft.server.v1_16_R3.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+
+            PacketPlayOutSetSlot packet = new PacketPlayOutSetSlot(windowId, slot, nmsStack);
+            ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet);
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot) {
+            showInInventory(player, slot, false);
+        }
+
+        @Override
+        public void showInHand(Player player, boolean force) {
+            if (player.getInventory().getItemInMainHand().getType() != Material.FILLED_MAP && !force) return;
+            showInInventory(player, player.getInventory().getHeldItemSlot(), force);
+        }
+
+        @Override
+        public void showInHand(Player player) {
+            showInHand(player, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame) {
+            showInFrame(player, frame, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame, boolean force) {
+            if (frame.getItem().getType() != Material.FILLED_MAP && !force) return;
+            showInFrame(player, frame.getEntityId());
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId) {
+            showInFrame(player, entityId, null);
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId, String debugInfo) {
+            if (!isViewing(player)) return;
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            if (debugInfo != null) {
+                ItemMeta itemMeta = stack.getItemMeta();
+                itemMeta.setDisplayName(debugInfo);
+                stack.setItemMeta(itemMeta);
+            }
+
+            Bukkit.getScheduler().runTask(MapReflectionAPI.getInstance(), () -> {
+                ItemFrame frame = getItemFrameById(player.getWorld(), entityId);
+                if (frame != null) {
+                    frame.removeMetadata("MAP_WRAPPER_REF", MapReflectionAPI.getInstance());
+                    frame.setMetadata("MAP_WRAPPER_REF", new FixedMetadataValue(MapReflectionAPI.getInstance(), MapWrapper_v1_16_R3.this));
+                }
+
+                sendItemFramePacket(player, entityId, stack, getMapId(player));
+            });
+        }
+
+        @Override
+        public void clearFrame(Player player, int entityId) {
+
+        }
+
+        @Override
+        public void clearFrame(Player player, ItemFrame frame) {
+
+        }
+
+        @Override
+        public ItemFrame getItemFrameById(World world, int entityId) {
+            CraftWorld craftWorld = (CraftWorld) world;
+
+            Entity entity = craftWorld.getHandle().getEntity(entityId);
+            if (entity == null) return null;
+
+            org.bukkit.entity.Entity bukkitEntity = entity.getBukkitEntity();
+            if (bukkitEntity instanceof ItemFrame) return (ItemFrame) bukkitEntity;
+
+            return null;
+        }
+
+        private void sendItemFramePacket(Player player, int entityId, ItemStack stack, int mapId) {
+            net.minecraft.server.v1_16_R3.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+            nmsStack.getOrCreateTag().setInt("map", mapId); //getOrCreateTag putInt
+
+            PacketPlayOutEntityMetadata packet = new PacketPlayOutEntityMetadata(entityId, new DataWatcher(null), true);
+
+            try {
+                List<DataWatcher.Item<?>> list = new ArrayList<>();
+                DataWatcherObject<net.minecraft.server.v1_16_R3.ItemStack> dataWatcherObject = (DataWatcherObject<net.minecraft.server.v1_16_R3.ItemStack>) getDeclaredField(EntityItemFrame.class, "ITEM");
+                DataWatcher.Item<?> dataWatcherItem = new DataWatcher.Item<>(dataWatcherObject, nmsStack);
+                list.add(dataWatcherItem);
+                setDeclaredField(packet, "b", list);
+            } catch (Exception e) {
+                e.printStackTrace();
+                return;
+            }
+
+            ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet);
+        }
+    };
+
+    public MapWrapper_v1_16_R3(ArrayImage image) {
+        super(image);
+    }
+
+    @Override
+    public MapController getController() {
+        return controller;
+    }
+}

NMS-v1_16_R3/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/PacketListener_v1_16_R3.java

@@ -0,0 +1,123 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import io.netty.channel.*;
+import net.minecraft.server.v1_16_R3.*;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftItemStack;
+import org.bukkit.entity.Player;
+import org.bukkit.util.Vector;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.events.CreateInventoryMapUpdateEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapCancelEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapInteractEvent;
+import tech.sbdevelopment.mapreflectionapi.listeners.PacketListener;
+
+import java.util.concurrent.TimeUnit;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.getDeclaredField;
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.setDeclaredField;
+
+public class PacketListener_v1_16_R3 extends PacketListener {
+    @Override
+    protected void injectPlayer(Player p) {
+        ChannelDuplexHandler channelDuplexHandler = new ChannelDuplexHandler() {
+            @Override
+            //On send packet
+            public void write(ChannelHandlerContext ctx, Object packet, ChannelPromise promise) throws Exception {
+                if (packet instanceof PacketPlayOutMap) {
+                    PacketPlayOutMap packetPlayOutMap = (PacketPlayOutMap) packet;
+
+                    int id = (int) getDeclaredField(packetPlayOutMap, "a");
+                    if (id < 0) {
+                        //It's one of our maps, invert ID and let through!
+                        int newId = -id;
+                        setDeclaredField(packetPlayOutMap, "a", newId); //mapId
+                    } else {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapCancelEvent event = new MapCancelEvent(p, id, async);
+                        if (MapReflectionAPI.getMapManager().isIdUsedBy(p, id)) event.setCancelled(true);
+                        if (event.getHandlers().getRegisteredListeners().length > 0)
+                            Bukkit.getPluginManager().callEvent(event);
+
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.write(ctx, packet, promise);
+            }
+
+            @Override
+            //On receive packet
+            public void channelRead(ChannelHandlerContext ctx, Object packet) throws Exception {
+                if (packet instanceof PacketPlayInUseEntity) {
+                    PacketPlayInUseEntity packetPlayInUseEntity = (PacketPlayInUseEntity) packet;
+
+                    int entityId = (int) getDeclaredField(packetPlayInUseEntity, "a"); //entityId
+                    PacketPlayInUseEntity.EnumEntityUseAction action = packetPlayInUseEntity.b(); //action
+                    EnumHand hand = packetPlayInUseEntity.c(); //hand
+                    Vec3D pos = packetPlayInUseEntity.d(); //pos
+
+                    if (Bukkit.getScheduler().callSyncMethod(plugin, () -> {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapInteractEvent event = new MapInteractEvent(p, entityId, action.ordinal(), pos != null ? vec3DToVector(pos) : null, hand != null ? hand.ordinal() : 0, async);
+                        if (event.getFrame() != null && event.getMapWrapper() != null) {
+                            Bukkit.getPluginManager().callEvent(event);
+                            return event.isCancelled();
+                        }
+                        return false;
+                    }).get(1, TimeUnit.SECONDS)) return;
+                } else if (packet instanceof PacketPlayInSetCreativeSlot) {
+                    PacketPlayInSetCreativeSlot packetPlayInSetCreativeSlot = (PacketPlayInSetCreativeSlot) packet;
+
+                    int slot = packetPlayInSetCreativeSlot.b();
+                    ItemStack item = packetPlayInSetCreativeSlot.getItemStack();
+
+                    boolean async = !plugin.getServer().isPrimaryThread();
+                    CreateInventoryMapUpdateEvent event = new CreateInventoryMapUpdateEvent(p, slot, CraftItemStack.asBukkitCopy(item), async);
+                    if (event.getMapWrapper() != null) {
+                        Bukkit.getPluginManager().callEvent(event);
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.channelRead(ctx, packet);
+            }
+        };
+
+        ChannelPipeline pipeline = ((CraftPlayer) p).getHandle().playerConnection.networkManager.channel.pipeline();
+        pipeline.addBefore("packet_handler", p.getName(), channelDuplexHandler);
+    }
+
+    @Override
+    public void removePlayer(Player p) {
+        Channel channel = ((CraftPlayer) p).getHandle().playerConnection.networkManager.channel;
+        channel.eventLoop().submit(() -> channel.pipeline().remove(p.getName()));
+    }
+
+    @Override
+    protected Vector vec3DToVector(Object vec3d) {
+        if (!(vec3d instanceof Vec3D)) return new Vector(0, 0, 0);
+
+        Vec3D vec3dObj = (Vec3D) vec3d;
+        return new Vector(vec3dObj.x, vec3dObj.y, vec3dObj.z);
+    }
+}

NMS-v1_17_R1/pom.xml

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ This file is part of MapReflectionAPI.
+  ~ Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>MapReflectionAPI</artifactId>
+        <groupId>tech.sbdevelopment</groupId>
+        <version>${revision}</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>MapReflectionAPI-NMS-v1_17_R1</artifactId>
+
+    <properties>
+        <NMSVersion>1.17.1-R0.1-SNAPSHOT</NMSVersion>
+        <jdk.version>17</jdk.version>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <release>${jdk.version}</release>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-deploy-plugin</artifactId>
+                <version>3.1.1</version>
+                <configuration>
+                    <skip>true</skip>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.bukkit</groupId>
+            <artifactId>craftbukkit</artifactId>
+            <version>${NMSVersion}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-API</artifactId>
+            <version>${revision}</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

NMS-v1_17_R1/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapSender_v1_17_R1.java

@@ -0,0 +1,138 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.network.protocol.game.PacketPlayOutMap;
+import net.minecraft.world.level.saveddata.maps.WorldMap;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
+import org.bukkit.entity.Player;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * The {@link MapSender_v1_17_R1} sends the Map packets to players.
+ */
+public class MapSender_v1_17_R1 {
+    private static final List<QueuedMap> sendQueue = new ArrayList<>();
+    private static int senderID = -1;
+
+    private MapSender_v1_17_R1() {
+    }
+
+    /**
+     * Add a map to the send queue
+     *
+     * @param id      The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void addToQueue(final int id, final ArrayImage content, final Player player) {
+        QueuedMap toSend = new QueuedMap(id, content, player);
+        if (sendQueue.contains(toSend)) return;
+        sendQueue.add(toSend);
+
+        runSender();
+    }
+
+    /**
+     * Cancels a senderID in the sender queue
+     *
+     * @param s The senderID to cancel
+     */
+    public static void cancelID(int s) {
+        sendQueue.removeIf(queuedMap -> queuedMap.id == s);
+    }
+
+    /**
+     * Run the sender task
+     */
+    private static void runSender() {
+        if (Bukkit.getScheduler().isQueued(senderID) || Bukkit.getScheduler().isCurrentlyRunning(senderID) || sendQueue.isEmpty())
+            return;
+
+        senderID = Bukkit.getScheduler().scheduleSyncRepeatingTask(MapReflectionAPI.getInstance(), () -> {
+            if (sendQueue.isEmpty()) return;
+
+            for (int i = 0; i < Math.min(sendQueue.size(), 10 + 1); i++) {
+                QueuedMap current = sendQueue.get(0);
+                if (current == null) return;
+
+                sendMap(current.id, current.image, current.player);
+
+                if (!sendQueue.isEmpty()) sendQueue.remove(0);
+            }
+        }, 0, 2);
+    }
+
+    /**
+     * Send a map to a player
+     *
+     * @param id0     The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void sendMap(final int id0, final ArrayImage content, final Player player) {
+        if (player == null || !player.isOnline()) {
+            List<QueuedMap> toRemove = new ArrayList<>();
+            for (QueuedMap qMap : sendQueue) {
+                if (qMap == null) continue;
+
+                if (qMap.player == null || !qMap.player.isOnline()) {
+                    toRemove.add(qMap);
+                }
+            }
+            Bukkit.getScheduler().cancelTask(senderID);
+            sendQueue.removeAll(toRemove);
+
+            return;
+        }
+
+        final int id = -id0;
+        Bukkit.getScheduler().runTaskAsynchronously(MapReflectionAPI.getInstance(), () -> {
+            try {
+                WorldMap.b updateData = new WorldMap.b(
+                        content.minX, //X pos
+                        content.minY, //Y pos
+                        content.maxX, //X size (2nd X pos)
+                        content.maxY, //Y size (2nd Y pos)
+                        content.array //Data
+                );
+
+                PacketPlayOutMap packet = new PacketPlayOutMap(
+                        id, //ID
+                        (byte) 0, //Scale
+                        false, //Show icons
+                        new ArrayList<>(), //Icons
+                        updateData
+                );
+
+                ((CraftPlayer) player).getHandle().b.sendPacket(packet); //connection send()
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        });
+    }
+
+    record QueuedMap(int id, ArrayImage image, Player player) {
+    }
+}

NMS-v1_17_R1/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapWrapper_v1_17_R1.java

@@ -0,0 +1,251 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.network.protocol.game.PacketPlayOutEntityMetadata;
+import net.minecraft.network.protocol.game.PacketPlayOutSetSlot;
+import net.minecraft.network.syncher.DataWatcher;
+import net.minecraft.network.syncher.DataWatcherObject;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.decoration.EntityItemFrame;
+import org.bukkit.*;
+import org.bukkit.craftbukkit.v1_17_R1.CraftWorld;
+import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftItemStack;
+import org.bukkit.entity.ItemFrame;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.metadata.FixedMetadataValue;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+import tech.sbdevelopment.mapreflectionapi.api.MapController;
+import tech.sbdevelopment.mapreflectionapi.api.MapWrapper;
+import tech.sbdevelopment.mapreflectionapi.api.exceptions.MapLimitExceededException;
+
+import java.util.*;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.getDeclaredField;
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.setDeclaredField;
+
+public class MapWrapper_v1_17_R1 extends MapWrapper {
+    protected MapController controller = new MapController() {
+        private final Map<UUID, Integer> viewers = new HashMap<>();
+
+        @Override
+        public void addViewer(Player player) throws MapLimitExceededException {
+            if (!isViewing(player)) {
+                viewers.put(player.getUniqueId(), MapReflectionAPI.getMapManager().getNextFreeIdFor(player));
+            }
+        }
+
+        @Override
+        public void removeViewer(OfflinePlayer player) {
+            viewers.remove(player.getUniqueId());
+        }
+
+        @Override
+        public void clearViewers() {
+            for (UUID uuid : viewers.keySet()) {
+                viewers.remove(uuid);
+            }
+        }
+
+        @Override
+        public boolean isViewing(OfflinePlayer player) {
+            if (player == null) return false;
+            return viewers.containsKey(player.getUniqueId());
+        }
+
+        @Override
+        public int getMapId(OfflinePlayer player) {
+            if (isViewing(player)) {
+                return viewers.get(player.getUniqueId());
+            }
+            return -1;
+        }
+
+        @Override
+        public void update(ArrayImage content) {
+            MapWrapper duplicate = MapReflectionAPI.getMapManager().getDuplicate(content);
+            if (duplicate != null) {
+                MapWrapper_v1_17_R1.this.content = duplicate.getContent();
+                return;
+            }
+
+            MapWrapper_v1_17_R1.this.content = content;
+
+            for (UUID id : viewers.keySet()) {
+                sendContent(Bukkit.getPlayer(id));
+            }
+        }
+
+        @Override
+        public void sendContent(Player player) {
+            sendContent(player, false);
+        }
+
+        @Override
+        public void sendContent(Player player, boolean withoutQueue) {
+            if (!isViewing(player)) return;
+
+            int id = getMapId(player);
+            if (withoutQueue) {
+                MapSender_v1_17_R1.sendMap(id, MapWrapper_v1_17_R1.this.content, player);
+            } else {
+                MapSender_v1_17_R1.addToQueue(id, MapWrapper_v1_17_R1.this.content, player);
+            }
+        }
+
+        @Override
+        public void cancelSend() {
+            for (int s : viewers.values()) {
+                MapSender_v1_17_R1.cancelID(s);
+            }
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot, boolean force) {
+            if (!isViewing(player)) return;
+
+            if (player.getGameMode() == GameMode.CREATIVE && !force) return;
+
+            if (slot < 9) {
+                slot += 36;
+            } else if (slot > 35 && slot != 45) {
+                slot = 8 - (slot - 36);
+            }
+
+            CraftPlayer craftPlayer = (CraftPlayer) player;
+            int windowId = craftPlayer.getHandle().bU.j; //inventoryMenu containerId
+            int stateId = craftPlayer.getHandle().bU.getStateId(); //inventoryMenu getStateId()
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            net.minecraft.world.item.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+
+            PacketPlayOutSetSlot packet = new PacketPlayOutSetSlot(windowId, stateId, slot, nmsStack);
+            ((CraftPlayer) player).getHandle().b.sendPacket(packet);
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot) {
+            showInInventory(player, slot, false);
+        }
+
+        @Override
+        public void showInHand(Player player, boolean force) {
+            if (player.getInventory().getItemInMainHand().getType() != Material.FILLED_MAP && !force) return;
+            showInInventory(player, player.getInventory().getHeldItemSlot(), force);
+        }
+
+        @Override
+        public void showInHand(Player player) {
+            showInHand(player, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame) {
+            showInFrame(player, frame, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame, boolean force) {
+            if (frame.getItem().getType() != Material.FILLED_MAP && !force) return;
+            showInFrame(player, frame.getEntityId());
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId) {
+            showInFrame(player, entityId, null);
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId, String debugInfo) {
+            if (!isViewing(player)) return;
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            if (debugInfo != null) {
+                ItemMeta itemMeta = stack.getItemMeta();
+                itemMeta.setDisplayName(debugInfo);
+                stack.setItemMeta(itemMeta);
+            }
+
+            Bukkit.getScheduler().runTask(MapReflectionAPI.getInstance(), () -> {
+                ItemFrame frame = getItemFrameById(player.getWorld(), entityId);
+                if (frame != null) {
+                    frame.removeMetadata("MAP_WRAPPER_REF", MapReflectionAPI.getInstance());
+                    frame.setMetadata("MAP_WRAPPER_REF", new FixedMetadataValue(MapReflectionAPI.getInstance(), MapWrapper_v1_17_R1.this));
+                }
+
+                sendItemFramePacket(player, entityId, stack, getMapId(player));
+            });
+        }
+
+        @Override
+        public void clearFrame(Player player, int entityId) {
+
+        }
+
+        @Override
+        public void clearFrame(Player player, ItemFrame frame) {
+
+        }
+
+        @Override
+        public ItemFrame getItemFrameById(World world, int entityId) {
+            CraftWorld craftWorld = (CraftWorld) world;
+
+            Entity entity = craftWorld.getHandle().getEntity(entityId);
+            if (entity == null) return null;
+
+            if (entity instanceof ItemFrame) return (ItemFrame) entity;
+
+            return null;
+        }
+
+        private void sendItemFramePacket(Player player, int entityId, ItemStack stack, int mapId) {
+            net.minecraft.world.item.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+            nmsStack.getOrCreateTag().setInt("map", mapId); //getOrCreateTag putInt
+
+            PacketPlayOutEntityMetadata packet = new PacketPlayOutEntityMetadata(entityId, new DataWatcher(null), true);
+
+            try {
+                List<DataWatcher.Item<?>> list = new ArrayList<>();
+                DataWatcherObject<net.minecraft.world.item.ItemStack> dataWatcherObject = (DataWatcherObject<net.minecraft.world.item.ItemStack>) getDeclaredField(EntityItemFrame.class, "ao");
+                DataWatcher.Item<?> dataWatcherItem = new DataWatcher.Item<>(dataWatcherObject, nmsStack);
+                list.add(dataWatcherItem);
+                setDeclaredField(packet, "b", list);
+            } catch (Exception e) {
+                e.printStackTrace();
+                return;
+            }
+
+            ((CraftPlayer) player).getHandle().b.sendPacket(packet);
+        }
+    };
+
+    public MapWrapper_v1_17_R1(ArrayImage image) {
+        super(image);
+    }
+
+    @Override
+    public MapController getController() {
+        return controller;
+    }
+}

NMS-v1_17_R1/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/PacketListener_v1_17_R1.java

@@ -0,0 +1,121 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import io.netty.channel.*;
+import net.minecraft.network.protocol.game.PacketPlayInSetCreativeSlot;
+import net.minecraft.network.protocol.game.PacketPlayInUseEntity;
+import net.minecraft.network.protocol.game.PacketPlayOutMap;
+import net.minecraft.world.EnumHand;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.phys.Vec3D;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_17_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_17_R1.inventory.CraftItemStack;
+import org.bukkit.entity.Player;
+import org.bukkit.util.Vector;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.events.CreateInventoryMapUpdateEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapCancelEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapInteractEvent;
+import tech.sbdevelopment.mapreflectionapi.listeners.PacketListener;
+
+import java.util.concurrent.TimeUnit;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.*;
+
+public class PacketListener_v1_17_R1 extends PacketListener {
+    @Override
+    protected void injectPlayer(Player p) {
+        ChannelDuplexHandler channelDuplexHandler = new ChannelDuplexHandler() {
+            @Override
+            //On send packet
+            public void write(ChannelHandlerContext ctx, Object packet, ChannelPromise promise) throws Exception {
+                if (packet instanceof PacketPlayOutMap packetPlayOutMap) {
+                    int id = (int) getDeclaredField(packetPlayOutMap, "a");
+
+                    if (id < 0) {
+                        //It's one of our maps, invert ID and let through!
+                        int newId = -id;
+                        setDeclaredField(packetPlayOutMap, "a", newId); //mapId
+                    } else {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapCancelEvent event = new MapCancelEvent(p, id, async);
+                        if (MapReflectionAPI.getMapManager().isIdUsedBy(p, id)) event.setCancelled(true);
+                        if (event.getHandlers().getRegisteredListeners().length > 0)
+                            Bukkit.getPluginManager().callEvent(event);
+
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.write(ctx, packet, promise);
+            }
+
+            @Override
+            //On receive packet
+            public void channelRead(ChannelHandlerContext ctx, Object packet) throws Exception {
+                if (packet instanceof PacketPlayInUseEntity packetPlayInUseEntity) {
+                    int entityId = (int) getDeclaredField(packetPlayInUseEntity, "a"); //entityId
+                    Object action = getDeclaredField(packetPlayInUseEntity, "b"); //action
+                    Enum<?> actionEnum = (Enum<?>) callDeclaredMethod(action, "a"); //action type
+                    EnumHand hand = hasField(action, "a") ? (EnumHand) getDeclaredField(action, "a") : null; //hand
+                    Vec3D pos = hasField(action, "b") ? (Vec3D) getDeclaredField(action, "b") : null; //pos
+
+                    if (Bukkit.getScheduler().callSyncMethod(plugin, () -> {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapInteractEvent event = new MapInteractEvent(p, entityId, actionEnum.ordinal(), pos != null ? vec3DToVector(pos) : null, hand != null ? hand.ordinal() : 0, async);
+                        if (event.getFrame() != null && event.getMapWrapper() != null) {
+                            Bukkit.getPluginManager().callEvent(event);
+                            return event.isCancelled();
+                        }
+                        return false;
+                    }).get(1, TimeUnit.SECONDS)) return;
+                } else if (packet instanceof PacketPlayInSetCreativeSlot packetPlayInSetCreativeSlot) {
+                    int slot = packetPlayInSetCreativeSlot.b();
+                    ItemStack item = packetPlayInSetCreativeSlot.getItemStack();
+
+                    boolean async = !plugin.getServer().isPrimaryThread();
+                    CreateInventoryMapUpdateEvent event = new CreateInventoryMapUpdateEvent(p, slot, CraftItemStack.asBukkitCopy(item), async);
+                    if (event.getMapWrapper() != null) {
+                        Bukkit.getPluginManager().callEvent(event);
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.channelRead(ctx, packet);
+            }
+        };
+
+        ChannelPipeline pipeline = ((CraftPlayer) p).getHandle().b.a.k.pipeline(); //connection connection channel
+        pipeline.addBefore("packet_handler", p.getName(), channelDuplexHandler);
+    }
+
+    @Override
+    public void removePlayer(Player p) {
+        Channel channel = ((CraftPlayer) p).getHandle().b.a.k; //connection connection channel
+        channel.eventLoop().submit(() -> channel.pipeline().remove(p.getName()));
+    }
+
+    @Override
+    protected Vector vec3DToVector(Object vec3d) {
+        if (!(vec3d instanceof Vec3D vec3dObj)) return new Vector(0, 0, 0);
+        return new Vector(vec3dObj.b, vec3dObj.c, vec3dObj.d); //x, y, z
+    }
+}

NMS-v1_18_R2/pom.xml

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ This file is part of MapReflectionAPI.
+  ~ Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>MapReflectionAPI</artifactId>
+        <groupId>tech.sbdevelopment</groupId>
+        <version>${revision}</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>MapReflectionAPI-NMS-v1_18_R2</artifactId>
+
+    <properties>
+        <NMSVersion>1.18.2-R0.1-SNAPSHOT</NMSVersion>
+        <jdk.version>17</jdk.version>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <release>${jdk.version}</release>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-deploy-plugin</artifactId>
+                <version>3.1.1</version>
+                <configuration>
+                    <skip>true</skip>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.bukkit</groupId>
+            <artifactId>craftbukkit</artifactId>
+            <version>${NMSVersion}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-API</artifactId>
+            <version>${revision}</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

NMS-v1_18_R2/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapSender_v1_18_R2.java

@@ -0,0 +1,138 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.network.protocol.game.PacketPlayOutMap;
+import net.minecraft.world.level.saveddata.maps.WorldMap;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_18_R2.entity.CraftPlayer;
+import org.bukkit.entity.Player;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * The {@link MapSender_v1_18_R2} sends the Map packets to players.
+ */
+public class MapSender_v1_18_R2 {
+    private static final List<QueuedMap> sendQueue = new ArrayList<>();
+    private static int senderID = -1;
+
+    private MapSender_v1_18_R2() {
+    }
+
+    /**
+     * Add a map to the send queue
+     *
+     * @param id      The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void addToQueue(final int id, final ArrayImage content, final Player player) {
+        QueuedMap toSend = new QueuedMap(id, content, player);
+        if (sendQueue.contains(toSend)) return;
+        sendQueue.add(toSend);
+
+        runSender();
+    }
+
+    /**
+     * Cancels a senderID in the sender queue
+     *
+     * @param s The senderID to cancel
+     */
+    public static void cancelID(int s) {
+        sendQueue.removeIf(queuedMap -> queuedMap.id == s);
+    }
+
+    /**
+     * Run the sender task
+     */
+    private static void runSender() {
+        if (Bukkit.getScheduler().isQueued(senderID) || Bukkit.getScheduler().isCurrentlyRunning(senderID) || sendQueue.isEmpty())
+            return;
+
+        senderID = Bukkit.getScheduler().scheduleSyncRepeatingTask(MapReflectionAPI.getInstance(), () -> {
+            if (sendQueue.isEmpty()) return;
+
+            for (int i = 0; i < Math.min(sendQueue.size(), 10 + 1); i++) {
+                QueuedMap current = sendQueue.get(0);
+                if (current == null) return;
+
+                sendMap(current.id, current.image, current.player);
+
+                if (!sendQueue.isEmpty()) sendQueue.remove(0);
+            }
+        }, 0, 2);
+    }
+
+    /**
+     * Send a map to a player
+     *
+     * @param id0     The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void sendMap(final int id0, final ArrayImage content, final Player player) {
+        if (player == null || !player.isOnline()) {
+            List<QueuedMap> toRemove = new ArrayList<>();
+            for (QueuedMap qMap : sendQueue) {
+                if (qMap == null) continue;
+
+                if (qMap.player == null || !qMap.player.isOnline()) {
+                    toRemove.add(qMap);
+                }
+            }
+            Bukkit.getScheduler().cancelTask(senderID);
+            sendQueue.removeAll(toRemove);
+
+            return;
+        }
+
+        final int id = -id0;
+        Bukkit.getScheduler().runTaskAsynchronously(MapReflectionAPI.getInstance(), () -> {
+            try {
+                WorldMap.b updateData = new WorldMap.b(
+                        content.minX, //X pos
+                        content.minY, //Y pos
+                        content.maxX, //X size (2nd X pos)
+                        content.maxY, //Y size (2nd Y pos)
+                        content.array //Data
+                );
+
+                PacketPlayOutMap packet = new PacketPlayOutMap(
+                        id, //ID
+                        (byte) 0, //Scale
+                        false, //Show icons
+                        new ArrayList<>(), //Icons
+                        updateData
+                );
+
+                ((CraftPlayer) player).getHandle().b.a(packet); //connection send()
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        });
+    }
+
+    record QueuedMap(int id, ArrayImage image, Player player) {
+    }
+}

NMS-v1_18_R2/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapWrapper_v1_18_R2.java

@@ -0,0 +1,251 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.network.protocol.game.PacketPlayOutEntityMetadata;
+import net.minecraft.network.protocol.game.PacketPlayOutSetSlot;
+import net.minecraft.network.syncher.DataWatcher;
+import net.minecraft.network.syncher.DataWatcherObject;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.decoration.EntityItemFrame;
+import org.bukkit.*;
+import org.bukkit.craftbukkit.v1_18_R2.CraftWorld;
+import org.bukkit.craftbukkit.v1_18_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftItemStack;
+import org.bukkit.entity.ItemFrame;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.metadata.FixedMetadataValue;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+import tech.sbdevelopment.mapreflectionapi.api.MapController;
+import tech.sbdevelopment.mapreflectionapi.api.MapWrapper;
+import tech.sbdevelopment.mapreflectionapi.api.exceptions.MapLimitExceededException;
+
+import java.util.*;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.getDeclaredField;
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.setDeclaredField;
+
+public class MapWrapper_v1_18_R2 extends MapWrapper {
+    protected MapController controller = new MapController() {
+        private final Map<UUID, Integer> viewers = new HashMap<>();
+
+        @Override
+        public void addViewer(Player player) throws MapLimitExceededException {
+            if (!isViewing(player)) {
+                viewers.put(player.getUniqueId(), MapReflectionAPI.getMapManager().getNextFreeIdFor(player));
+            }
+        }
+
+        @Override
+        public void removeViewer(OfflinePlayer player) {
+            viewers.remove(player.getUniqueId());
+        }
+
+        @Override
+        public void clearViewers() {
+            for (UUID uuid : viewers.keySet()) {
+                viewers.remove(uuid);
+            }
+        }
+
+        @Override
+        public boolean isViewing(OfflinePlayer player) {
+            if (player == null) return false;
+            return viewers.containsKey(player.getUniqueId());
+        }
+
+        @Override
+        public int getMapId(OfflinePlayer player) {
+            if (isViewing(player)) {
+                return viewers.get(player.getUniqueId());
+            }
+            return -1;
+        }
+
+        @Override
+        public void update(ArrayImage content) {
+            MapWrapper duplicate = MapReflectionAPI.getMapManager().getDuplicate(content);
+            if (duplicate != null) {
+                MapWrapper_v1_18_R2.this.content = duplicate.getContent();
+                return;
+            }
+
+            MapWrapper_v1_18_R2.this.content = content;
+
+            for (UUID id : viewers.keySet()) {
+                sendContent(Bukkit.getPlayer(id));
+            }
+        }
+
+        @Override
+        public void sendContent(Player player) {
+            sendContent(player, false);
+        }
+
+        @Override
+        public void sendContent(Player player, boolean withoutQueue) {
+            if (!isViewing(player)) return;
+
+            int id = getMapId(player);
+            if (withoutQueue) {
+                MapSender_v1_18_R2.sendMap(id, MapWrapper_v1_18_R2.this.content, player);
+            } else {
+                MapSender_v1_18_R2.addToQueue(id, MapWrapper_v1_18_R2.this.content, player);
+            }
+        }
+
+        @Override
+        public void cancelSend() {
+            for (int s : viewers.values()) {
+                MapSender_v1_18_R2.cancelID(s);
+            }
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot, boolean force) {
+            if (!isViewing(player)) return;
+
+            if (player.getGameMode() == GameMode.CREATIVE && !force) return;
+
+            if (slot < 9) {
+                slot += 36;
+            } else if (slot > 35 && slot != 45) {
+                slot = 8 - (slot - 36);
+            }
+
+            CraftPlayer craftPlayer = (CraftPlayer) player;
+            int windowId = craftPlayer.getHandle().bU.j; //inventoryMenu containerId
+            int stateId = craftPlayer.getHandle().bU.j(); //inventoryMenu getStateId()
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            net.minecraft.world.item.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+
+            PacketPlayOutSetSlot packet = new PacketPlayOutSetSlot(windowId, stateId, slot, nmsStack);
+            ((CraftPlayer) player).getHandle().b.a(packet);
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot) {
+            showInInventory(player, slot, false);
+        }
+
+        @Override
+        public void showInHand(Player player, boolean force) {
+            if (player.getInventory().getItemInMainHand().getType() != Material.FILLED_MAP && !force) return;
+            showInInventory(player, player.getInventory().getHeldItemSlot(), force);
+        }
+
+        @Override
+        public void showInHand(Player player) {
+            showInHand(player, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame) {
+            showInFrame(player, frame, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame, boolean force) {
+            if (frame.getItem().getType() != Material.FILLED_MAP && !force) return;
+            showInFrame(player, frame.getEntityId());
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId) {
+            showInFrame(player, entityId, null);
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId, String debugInfo) {
+            if (!isViewing(player)) return;
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            if (debugInfo != null) {
+                ItemMeta itemMeta = stack.getItemMeta();
+                itemMeta.setDisplayName(debugInfo);
+                stack.setItemMeta(itemMeta);
+            }
+
+            Bukkit.getScheduler().runTask(MapReflectionAPI.getInstance(), () -> {
+                ItemFrame frame = getItemFrameById(player.getWorld(), entityId);
+                if (frame != null) {
+                    frame.removeMetadata("MAP_WRAPPER_REF", MapReflectionAPI.getInstance());
+                    frame.setMetadata("MAP_WRAPPER_REF", new FixedMetadataValue(MapReflectionAPI.getInstance(), MapWrapper_v1_18_R2.this));
+                }
+
+                sendItemFramePacket(player, entityId, stack, getMapId(player));
+            });
+        }
+
+        @Override
+        public void clearFrame(Player player, int entityId) {
+
+        }
+
+        @Override
+        public void clearFrame(Player player, ItemFrame frame) {
+
+        }
+
+        @Override
+        public ItemFrame getItemFrameById(World world, int entityId) {
+            CraftWorld craftWorld = (CraftWorld) world;
+
+            Entity entity = craftWorld.getHandle().a(entityId);
+            if (entity == null) return null;
+
+            if (entity instanceof ItemFrame) return (ItemFrame) entity;
+
+            return null;
+        }
+
+        private void sendItemFramePacket(Player player, int entityId, ItemStack stack, int mapId) {
+            net.minecraft.world.item.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+            nmsStack.u().a("map", mapId); //getOrCreateTag putInt
+
+            PacketPlayOutEntityMetadata packet = new PacketPlayOutEntityMetadata(entityId, new DataWatcher(null), true);
+
+            try {
+                List<DataWatcher.Item<?>> list = new ArrayList<>();
+                DataWatcherObject<net.minecraft.world.item.ItemStack> dataWatcherObject = (DataWatcherObject<net.minecraft.world.item.ItemStack>) getDeclaredField(EntityItemFrame.class, "ao");
+                DataWatcher.Item<?> dataWatcherItem = new DataWatcher.Item<>(dataWatcherObject, nmsStack);
+                list.add(dataWatcherItem);
+                setDeclaredField(packet, "b", list);
+            } catch (Exception e) {
+                e.printStackTrace();
+                return;
+            }
+
+            ((CraftPlayer) player).getHandle().b.a(packet);
+        }
+    };
+
+    public MapWrapper_v1_18_R2(ArrayImage image) {
+        super(image);
+    }
+
+    @Override
+    public MapController getController() {
+        return controller;
+    }
+}

NMS-v1_18_R2/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/PacketListener_v1_18_R2.java

@@ -0,0 +1,121 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import io.netty.channel.*;
+import net.minecraft.network.protocol.game.PacketPlayInSetCreativeSlot;
+import net.minecraft.network.protocol.game.PacketPlayInUseEntity;
+import net.minecraft.network.protocol.game.PacketPlayOutMap;
+import net.minecraft.world.EnumHand;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.phys.Vec3D;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_18_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_18_R2.inventory.CraftItemStack;
+import org.bukkit.entity.Player;
+import org.bukkit.util.Vector;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.events.CreateInventoryMapUpdateEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapCancelEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapInteractEvent;
+import tech.sbdevelopment.mapreflectionapi.listeners.PacketListener;
+
+import java.util.concurrent.TimeUnit;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.*;
+
+public class PacketListener_v1_18_R2 extends PacketListener {
+    @Override
+    protected void injectPlayer(Player p) {
+        ChannelDuplexHandler channelDuplexHandler = new ChannelDuplexHandler() {
+            @Override
+            //On send packet
+            public void write(ChannelHandlerContext ctx, Object packet, ChannelPromise promise) throws Exception {
+                if (packet instanceof PacketPlayOutMap packetPlayOutMap) {
+                    int id = (int) getDeclaredField(packetPlayOutMap, "a");
+
+                    if (id < 0) {
+                        //It's one of our maps, invert ID and let through!
+                        int newId = -id;
+                        setDeclaredField(packetPlayOutMap, "a", newId); //mapId
+                    } else {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapCancelEvent event = new MapCancelEvent(p, id, async);
+                        if (MapReflectionAPI.getMapManager().isIdUsedBy(p, id)) event.setCancelled(true);
+                        if (event.getHandlers().getRegisteredListeners().length > 0)
+                            Bukkit.getPluginManager().callEvent(event);
+
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.write(ctx, packet, promise);
+            }
+
+            @Override
+            //On receive packet
+            public void channelRead(ChannelHandlerContext ctx, Object packet) throws Exception {
+                if (packet instanceof PacketPlayInUseEntity packetPlayInUseEntity) {
+                    int entityId = (int) getDeclaredField(packetPlayInUseEntity, "a"); //entityId
+                    Object action = getDeclaredField(packetPlayInUseEntity, "b"); //action
+                    Enum<?> actionEnum = (Enum<?>) callDeclaredMethod(action, "a"); //action type
+                    EnumHand hand = hasField(action, "a") ? (EnumHand) getDeclaredField(action, "a") : null; //hand
+                    Vec3D pos = hasField(action, "b") ? (Vec3D) getDeclaredField(action, "b") : null; //pos
+
+                    if (Bukkit.getScheduler().callSyncMethod(plugin, () -> {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapInteractEvent event = new MapInteractEvent(p, entityId, actionEnum.ordinal(), pos != null ? vec3DToVector(pos) : null, hand != null ? hand.ordinal() : 0, async);
+                        if (event.getFrame() != null && event.getMapWrapper() != null) {
+                            Bukkit.getPluginManager().callEvent(event);
+                            return event.isCancelled();
+                        }
+                        return false;
+                    }).get(1, TimeUnit.SECONDS)) return;
+                } else if (packet instanceof PacketPlayInSetCreativeSlot packetPlayInSetCreativeSlot) {
+                    int slot = packetPlayInSetCreativeSlot.b();
+                    ItemStack item = packetPlayInSetCreativeSlot.c();
+
+                    boolean async = !plugin.getServer().isPrimaryThread();
+                    CreateInventoryMapUpdateEvent event = new CreateInventoryMapUpdateEvent(p, slot, CraftItemStack.asBukkitCopy(item), async);
+                    if (event.getMapWrapper() != null) {
+                        Bukkit.getPluginManager().callEvent(event);
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.channelRead(ctx, packet);
+            }
+        };
+
+        ChannelPipeline pipeline = ((CraftPlayer) p).getHandle().b.a.m.pipeline(); //connection connection channel
+        pipeline.addBefore("packet_handler", p.getName(), channelDuplexHandler);
+    }
+
+    @Override
+    public void removePlayer(Player p) {
+        Channel channel = ((CraftPlayer) p).getHandle().b.a.m; //connection connection channel
+        channel.eventLoop().submit(() -> channel.pipeline().remove(p.getName()));
+    }
+
+    @Override
+    protected Vector vec3DToVector(Object vec3d) {
+        if (!(vec3d instanceof Vec3D vec3dObj)) return new Vector(0, 0, 0);
+        return new Vector(vec3dObj.b, vec3dObj.c, vec3dObj.d); //x, y, z
+    }
+}

NMS-v1_19_R3/pom.xml

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ This file is part of MapReflectionAPI.
+  ~ Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>MapReflectionAPI</artifactId>
+        <groupId>tech.sbdevelopment</groupId>
+        <version>${revision}</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>MapReflectionAPI-NMS-v1_19_R3</artifactId>
+
+    <properties>
+        <NMSVersion>1.19.4-R0.1-SNAPSHOT</NMSVersion>
+        <jdk.version>17</jdk.version>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <release>${jdk.version}</release>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-deploy-plugin</artifactId>
+                <version>3.1.1</version>
+                <configuration>
+                    <skip>true</skip>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.bukkit</groupId>
+            <artifactId>craftbukkit</artifactId>
+            <version>${NMSVersion}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-API</artifactId>
+            <version>${revision}</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

NMS-v1_19_R3/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapSender_v1_19_R3.java

@@ -0,0 +1,138 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.network.protocol.game.PacketPlayOutMap;
+import net.minecraft.world.level.saveddata.maps.WorldMap;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_19_R3.entity.CraftPlayer;
+import org.bukkit.entity.Player;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * The {@link MapSender_v1_19_R3} sends the Map packets to players.
+ */
+public class MapSender_v1_19_R3 {
+    private static final List<QueuedMap> sendQueue = new ArrayList<>();
+    private static int senderID = -1;
+
+    private MapSender_v1_19_R3() {
+    }
+
+    /**
+     * Add a map to the send queue
+     *
+     * @param id      The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void addToQueue(final int id, final ArrayImage content, final Player player) {
+        QueuedMap toSend = new QueuedMap(id, content, player);
+        if (sendQueue.contains(toSend)) return;
+        sendQueue.add(toSend);
+
+        runSender();
+    }
+
+    /**
+     * Cancels a senderID in the sender queue
+     *
+     * @param s The senderID to cancel
+     */
+    public static void cancelID(int s) {
+        sendQueue.removeIf(queuedMap -> queuedMap.id == s);
+    }
+
+    /**
+     * Run the sender task
+     */
+    private static void runSender() {
+        if (Bukkit.getScheduler().isQueued(senderID) || Bukkit.getScheduler().isCurrentlyRunning(senderID) || sendQueue.isEmpty())
+            return;
+
+        senderID = Bukkit.getScheduler().scheduleSyncRepeatingTask(MapReflectionAPI.getInstance(), () -> {
+            if (sendQueue.isEmpty()) return;
+
+            for (int i = 0; i < Math.min(sendQueue.size(), 10 + 1); i++) {
+                QueuedMap current = sendQueue.get(0);
+                if (current == null) return;
+
+                sendMap(current.id, current.image, current.player);
+
+                if (!sendQueue.isEmpty()) sendQueue.remove(0);
+            }
+        }, 0, 2);
+    }
+
+    /**
+     * Send a map to a player
+     *
+     * @param id0     The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void sendMap(final int id0, final ArrayImage content, final Player player) {
+        if (player == null || !player.isOnline()) {
+            List<QueuedMap> toRemove = new ArrayList<>();
+            for (QueuedMap qMap : sendQueue) {
+                if (qMap == null) continue;
+
+                if (qMap.player == null || !qMap.player.isOnline()) {
+                    toRemove.add(qMap);
+                }
+            }
+            Bukkit.getScheduler().cancelTask(senderID);
+            sendQueue.removeAll(toRemove);
+
+            return;
+        }
+
+        final int id = -id0;
+        Bukkit.getScheduler().runTaskAsynchronously(MapReflectionAPI.getInstance(), () -> {
+            try {
+                WorldMap.b updateData = new WorldMap.b(
+                        content.minX, //X pos
+                        content.minY, //Y pos
+                        content.maxX, //X size (2nd X pos)
+                        content.maxY, //Y size (2nd Y pos)
+                        content.array //Data
+                );
+
+                PacketPlayOutMap packet = new PacketPlayOutMap(
+                        id, //ID
+                        (byte) 0, //Scale
+                        false, //Show icons
+                        new ArrayList<>(), //Icons
+                        updateData
+                );
+
+                ((CraftPlayer) player).getHandle().b.a(packet); //connection send()
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        });
+    }
+
+    record QueuedMap(int id, ArrayImage image, Player player) {
+    }
+}

NMS-v1_19_R3/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapWrapper_v1_19_R3.java

@@ -0,0 +1,239 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.network.protocol.game.PacketPlayOutEntityMetadata;
+import net.minecraft.network.protocol.game.PacketPlayOutSetSlot;
+import net.minecraft.network.syncher.DataWatcher;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.decoration.EntityItemFrame;
+import org.bukkit.*;
+import org.bukkit.craftbukkit.v1_19_R3.CraftWorld;
+import org.bukkit.craftbukkit.v1_19_R3.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftItemStack;
+import org.bukkit.entity.ItemFrame;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.metadata.FixedMetadataValue;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+import tech.sbdevelopment.mapreflectionapi.api.MapController;
+import tech.sbdevelopment.mapreflectionapi.api.MapWrapper;
+import tech.sbdevelopment.mapreflectionapi.api.exceptions.MapLimitExceededException;
+
+import java.util.*;
+
+public class MapWrapper_v1_19_R3 extends MapWrapper {
+    protected MapController controller = new MapController() {
+        private final Map<UUID, Integer> viewers = new HashMap<>();
+
+        @Override
+        public void addViewer(Player player) throws MapLimitExceededException {
+            if (!isViewing(player)) {
+                viewers.put(player.getUniqueId(), MapReflectionAPI.getMapManager().getNextFreeIdFor(player));
+            }
+        }
+
+        @Override
+        public void removeViewer(OfflinePlayer player) {
+            viewers.remove(player.getUniqueId());
+        }
+
+        @Override
+        public void clearViewers() {
+            for (UUID uuid : viewers.keySet()) {
+                viewers.remove(uuid);
+            }
+        }
+
+        @Override
+        public boolean isViewing(OfflinePlayer player) {
+            if (player == null) return false;
+            return viewers.containsKey(player.getUniqueId());
+        }
+
+        @Override
+        public int getMapId(OfflinePlayer player) {
+            if (isViewing(player)) {
+                return viewers.get(player.getUniqueId());
+            }
+            return -1;
+        }
+
+        @Override
+        public void update(ArrayImage content) {
+            MapWrapper duplicate = MapReflectionAPI.getMapManager().getDuplicate(content);
+            if (duplicate != null) {
+                MapWrapper_v1_19_R3.this.content = duplicate.getContent();
+                return;
+            }
+
+            MapWrapper_v1_19_R3.this.content = content;
+
+            for (UUID id : viewers.keySet()) {
+                sendContent(Bukkit.getPlayer(id));
+            }
+        }
+
+        @Override
+        public void sendContent(Player player) {
+            sendContent(player, false);
+        }
+
+        @Override
+        public void sendContent(Player player, boolean withoutQueue) {
+            if (!isViewing(player)) return;
+
+            int id = getMapId(player);
+            if (withoutQueue) {
+                MapSender_v1_19_R3.sendMap(id, MapWrapper_v1_19_R3.this.content, player);
+            } else {
+                MapSender_v1_19_R3.addToQueue(id, MapWrapper_v1_19_R3.this.content, player);
+            }
+        }
+
+        @Override
+        public void cancelSend() {
+            for (int s : viewers.values()) {
+                MapSender_v1_19_R3.cancelID(s);
+            }
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot, boolean force) {
+            if (!isViewing(player)) return;
+
+            if (player.getGameMode() == GameMode.CREATIVE && !force) return;
+
+            if (slot < 9) {
+                slot += 36;
+            } else if (slot > 35 && slot != 45) {
+                slot = 8 - (slot - 36);
+            }
+
+            CraftPlayer craftPlayer = (CraftPlayer) player;
+            int windowId = craftPlayer.getHandle().bO.j; //inventoryMenu containerId
+            int stateId = craftPlayer.getHandle().bO.j(); //inventoryMenu getStateId()
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            net.minecraft.world.item.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+
+            PacketPlayOutSetSlot packet = new PacketPlayOutSetSlot(windowId, stateId, slot, nmsStack);
+            ((CraftPlayer) player).getHandle().b.a(packet);
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot) {
+            showInInventory(player, slot, false);
+        }
+
+        @Override
+        public void showInHand(Player player, boolean force) {
+            if (player.getInventory().getItemInMainHand().getType() != Material.FILLED_MAP && !force) return;
+            showInInventory(player, player.getInventory().getHeldItemSlot(), force);
+        }
+
+        @Override
+        public void showInHand(Player player) {
+            showInHand(player, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame) {
+            showInFrame(player, frame, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame, boolean force) {
+            if (frame.getItem().getType() != Material.FILLED_MAP && !force) return;
+            showInFrame(player, frame.getEntityId());
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId) {
+            showInFrame(player, entityId, null);
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId, String debugInfo) {
+            if (!isViewing(player)) return;
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            if (debugInfo != null) {
+                ItemMeta itemMeta = stack.getItemMeta();
+                itemMeta.setDisplayName(debugInfo);
+                stack.setItemMeta(itemMeta);
+            }
+
+            Bukkit.getScheduler().runTask(MapReflectionAPI.getInstance(), () -> {
+                ItemFrame frame = getItemFrameById(player.getWorld(), entityId);
+                if (frame != null) {
+                    frame.removeMetadata("MAP_WRAPPER_REF", MapReflectionAPI.getInstance());
+                    frame.setMetadata("MAP_WRAPPER_REF", new FixedMetadataValue(MapReflectionAPI.getInstance(), MapWrapper_v1_19_R3.this));
+                }
+
+                sendItemFramePacket(player, entityId, stack, getMapId(player));
+            });
+        }
+
+        @Override
+        public void clearFrame(Player player, int entityId) {
+
+        }
+
+        @Override
+        public void clearFrame(Player player, ItemFrame frame) {
+
+        }
+
+        @Override
+        public ItemFrame getItemFrameById(World world, int entityId) {
+            CraftWorld craftWorld = (CraftWorld) world;
+
+            Entity entity = craftWorld.getHandle().a(entityId);
+            if (entity == null) return null;
+
+            if (entity instanceof ItemFrame) return (ItemFrame) entity;
+
+            return null;
+        }
+
+        private void sendItemFramePacket(Player player, int entityId, ItemStack stack, int mapId) {
+            net.minecraft.world.item.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+            nmsStack.v().a("map", mapId); //getOrCreateTag putInt
+
+            List<DataWatcher.b<?>> list = new ArrayList<>();
+            DataWatcher.b<?> dataWatcherItem = DataWatcher.b.a(EntityItemFrame.g, nmsStack);
+            list.add(dataWatcherItem);
+            PacketPlayOutEntityMetadata packet = new PacketPlayOutEntityMetadata(entityId, list);
+
+            ((CraftPlayer) player).getHandle().b.a(packet);
+        }
+    };
+
+    public MapWrapper_v1_19_R3(ArrayImage image) {
+        super(image);
+    }
+
+    @Override
+    public MapController getController() {
+        return controller;
+    }
+}

NMS-v1_19_R3/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/PacketListener_v1_19_R3.java

@@ -0,0 +1,125 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import io.netty.channel.*;
+import net.minecraft.network.NetworkManager;
+import net.minecraft.network.protocol.game.PacketPlayInSetCreativeSlot;
+import net.minecraft.network.protocol.game.PacketPlayInUseEntity;
+import net.minecraft.network.protocol.game.PacketPlayOutMap;
+import net.minecraft.world.EnumHand;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.phys.Vec3D;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_19_R3.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_19_R3.inventory.CraftItemStack;
+import org.bukkit.entity.Player;
+import org.bukkit.util.Vector;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.events.CreateInventoryMapUpdateEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapCancelEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapInteractEvent;
+import tech.sbdevelopment.mapreflectionapi.listeners.PacketListener;
+
+import java.util.concurrent.TimeUnit;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.*;
+
+public class PacketListener_v1_19_R3 extends PacketListener {
+    @Override
+    protected void injectPlayer(Player p) {
+        ChannelDuplexHandler channelDuplexHandler = new ChannelDuplexHandler() {
+            @Override
+            //On send packet
+            public void write(ChannelHandlerContext ctx, Object packet, ChannelPromise promise) throws Exception {
+                if (packet instanceof PacketPlayOutMap packetPlayOutMap) {
+                    int id = packetPlayOutMap.a(); //mapId
+                    if (id < 0) {
+                        //It's one of our maps, invert ID and let through!
+                        int newId = -id;
+                        setDeclaredField(packetPlayOutMap, "a", newId); //mapId
+                    } else {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapCancelEvent event = new MapCancelEvent(p, id, async);
+                        if (MapReflectionAPI.getMapManager().isIdUsedBy(p, id)) event.setCancelled(true);
+                        if (event.getHandlers().getRegisteredListeners().length > 0)
+                            Bukkit.getPluginManager().callEvent(event);
+
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.write(ctx, packet, promise);
+            }
+
+            @Override
+            //On receive packet
+            public void channelRead(ChannelHandlerContext ctx, Object packet) throws Exception {
+                if (packet instanceof PacketPlayInUseEntity packetPlayInUseEntity) {
+                    int entityId = (int) getDeclaredField(packetPlayInUseEntity, "a"); //entityId
+                    Object action = getDeclaredField(packetPlayInUseEntity, "b"); //action
+                    Enum<?> actionEnum = (Enum<?>) callDeclaredMethod(action, "a"); //action type
+                    EnumHand hand = hasField(action, "a") ? (EnumHand) getDeclaredField(action, "a") : null; //hand
+                    Vec3D pos = hasField(action, "b") ? (Vec3D) getDeclaredField(action, "b") : null; //pos
+
+                    if (Bukkit.getScheduler().callSyncMethod(plugin, () -> {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapInteractEvent event = new MapInteractEvent(p, entityId, actionEnum.ordinal(), pos != null ? vec3DToVector(pos) : null, hand != null ? hand.ordinal() : 0, async);
+                        if (event.getFrame() != null && event.getMapWrapper() != null) {
+                            Bukkit.getPluginManager().callEvent(event);
+                            return event.isCancelled();
+                        }
+                        return false;
+                    }).get(1, TimeUnit.SECONDS)) return;
+                } else if (packet instanceof PacketPlayInSetCreativeSlot packetPlayInSetCreativeSlot) {
+                    int slot = packetPlayInSetCreativeSlot.a();
+                    ItemStack item = packetPlayInSetCreativeSlot.c();
+
+                    boolean async = !plugin.getServer().isPrimaryThread();
+                    CreateInventoryMapUpdateEvent event = new CreateInventoryMapUpdateEvent(p, slot, CraftItemStack.asBukkitCopy(item), async);
+                    if (event.getMapWrapper() != null) {
+                        Bukkit.getPluginManager().callEvent(event);
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.channelRead(ctx, packet);
+            }
+        };
+
+        //The connection is private since 1.19.4 :|
+        NetworkManager networkManager = (NetworkManager) getField(((CraftPlayer) p).getHandle().b, "h");
+        ChannelPipeline pipeline = networkManager.m.pipeline(); //connection channel
+        pipeline.addBefore("packet_handler", p.getName(), channelDuplexHandler);
+    }
+
+    @Override
+    public void removePlayer(Player p) {
+        //The connection is private since 1.19.4 :|
+        NetworkManager networkManager = (NetworkManager) getField(((CraftPlayer) p).getHandle().b, "h");
+        Channel channel = networkManager.m; //connection channel
+        channel.eventLoop().submit(() -> channel.pipeline().remove(p.getName()));
+    }
+
+    @Override
+    protected Vector vec3DToVector(Object vec3d) {
+        if (!(vec3d instanceof Vec3D vec3dObj)) return new Vector(0, 0, 0);
+        return new Vector(vec3dObj.c, vec3dObj.d, vec3dObj.e); //x, y, z
+    }
+}

NMS-v1_20_R2/pom.xml

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ This file is part of MapReflectionAPI.
+  ~ Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>MapReflectionAPI</artifactId>
+        <groupId>tech.sbdevelopment</groupId>
+        <version>${revision}</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>MapReflectionAPI-NMS-v1_20_R2</artifactId>
+
+    <properties>
+        <NMSVersion>1.20.2-R0.1-SNAPSHOT</NMSVersion>
+        <jdk.version>17</jdk.version>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <release>${jdk.version}</release>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-deploy-plugin</artifactId>
+                <version>3.1.1</version>
+                <configuration>
+                    <skip>true</skip>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.bukkit</groupId>
+            <artifactId>craftbukkit</artifactId>
+            <version>${NMSVersion}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-API</artifactId>
+            <version>${revision}</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

NMS-v1_20_R2/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapSender_v1_20_R2.java

@@ -0,0 +1,138 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.network.protocol.game.PacketPlayOutMap;
+import net.minecraft.world.level.saveddata.maps.WorldMap;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_20_R2.entity.CraftPlayer;
+import org.bukkit.entity.Player;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * The {@link MapSender_v1_20_R2} sends the Map packets to players.
+ */
+public class MapSender_v1_20_R2 {
+    private static final List<QueuedMap> sendQueue = new ArrayList<>();
+    private static int senderID = -1;
+
+    private MapSender_v1_20_R2() {
+    }
+
+    /**
+     * Add a map to the send queue
+     *
+     * @param id      The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void addToQueue(final int id, final ArrayImage content, final Player player) {
+        QueuedMap toSend = new QueuedMap(id, content, player);
+        if (sendQueue.contains(toSend)) return;
+        sendQueue.add(toSend);
+
+        runSender();
+    }
+
+    /**
+     * Cancels a senderID in the sender queue
+     *
+     * @param s The senderID to cancel
+     */
+    public static void cancelID(int s) {
+        sendQueue.removeIf(queuedMap -> queuedMap.id == s);
+    }
+
+    /**
+     * Run the sender task
+     */
+    private static void runSender() {
+        if (Bukkit.getScheduler().isQueued(senderID) || Bukkit.getScheduler().isCurrentlyRunning(senderID) || sendQueue.isEmpty())
+            return;
+
+        senderID = Bukkit.getScheduler().scheduleSyncRepeatingTask(MapReflectionAPI.getInstance(), () -> {
+            if (sendQueue.isEmpty()) return;
+
+            for (int i = 0; i < Math.min(sendQueue.size(), 10 + 1); i++) {
+                QueuedMap current = sendQueue.get(0);
+                if (current == null) return;
+
+                sendMap(current.id, current.image, current.player);
+
+                if (!sendQueue.isEmpty()) sendQueue.remove(0);
+            }
+        }, 0, 2);
+    }
+
+    /**
+     * Send a map to a player
+     *
+     * @param id0     The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void sendMap(final int id0, final ArrayImage content, final Player player) {
+        if (player == null || !player.isOnline()) {
+            List<QueuedMap> toRemove = new ArrayList<>();
+            for (QueuedMap qMap : sendQueue) {
+                if (qMap == null) continue;
+
+                if (qMap.player == null || !qMap.player.isOnline()) {
+                    toRemove.add(qMap);
+                }
+            }
+            Bukkit.getScheduler().cancelTask(senderID);
+            sendQueue.removeAll(toRemove);
+
+            return;
+        }
+
+        final int id = -id0;
+        Bukkit.getScheduler().runTaskAsynchronously(MapReflectionAPI.getInstance(), () -> {
+            try {
+                WorldMap.b updateData = new WorldMap.b(
+                        content.minX, //X pos
+                        content.minY, //Y pos
+                        content.maxX, //X size (2nd X pos)
+                        content.maxY, //Y size (2nd Y pos)
+                        content.array //Data
+                );
+
+                PacketPlayOutMap packet = new PacketPlayOutMap(
+                        id, //ID
+                        (byte) 0, //Scale
+                        false, //Show icons
+                        new ArrayList<>(), //Icons
+                        updateData
+                );
+
+                ((CraftPlayer) player).getHandle().c.a(packet); //connection send()
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        });
+    }
+
+    record QueuedMap(int id, ArrayImage image, Player player) {
+    }
+}

NMS-v1_20_R2/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapWrapper_v1_20_R2.java

@@ -0,0 +1,239 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.network.protocol.game.PacketPlayOutEntityMetadata;
+import net.minecraft.network.protocol.game.PacketPlayOutSetSlot;
+import net.minecraft.network.syncher.DataWatcher;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.decoration.EntityItemFrame;
+import org.bukkit.*;
+import org.bukkit.craftbukkit.v1_20_R2.CraftWorld;
+import org.bukkit.craftbukkit.v1_20_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftItemStack;
+import org.bukkit.entity.ItemFrame;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.metadata.FixedMetadataValue;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+import tech.sbdevelopment.mapreflectionapi.api.MapController;
+import tech.sbdevelopment.mapreflectionapi.api.MapWrapper;
+import tech.sbdevelopment.mapreflectionapi.api.exceptions.MapLimitExceededException;
+
+import java.util.*;
+
+public class MapWrapper_v1_20_R2 extends MapWrapper {
+    protected MapController controller = new MapController() {
+        private final Map<UUID, Integer> viewers = new HashMap<>();
+
+        @Override
+        public void addViewer(Player player) throws MapLimitExceededException {
+            if (!isViewing(player)) {
+                viewers.put(player.getUniqueId(), MapReflectionAPI.getMapManager().getNextFreeIdFor(player));
+            }
+        }
+
+        @Override
+        public void removeViewer(OfflinePlayer player) {
+            viewers.remove(player.getUniqueId());
+        }
+
+        @Override
+        public void clearViewers() {
+            for (UUID uuid : viewers.keySet()) {
+                viewers.remove(uuid);
+            }
+        }
+
+        @Override
+        public boolean isViewing(OfflinePlayer player) {
+            if (player == null) return false;
+            return viewers.containsKey(player.getUniqueId());
+        }
+
+        @Override
+        public int getMapId(OfflinePlayer player) {
+            if (isViewing(player)) {
+                return viewers.get(player.getUniqueId());
+            }
+            return -1;
+        }
+
+        @Override
+        public void update(ArrayImage content) {
+            MapWrapper duplicate = MapReflectionAPI.getMapManager().getDuplicate(content);
+            if (duplicate != null) {
+                MapWrapper_v1_20_R2.this.content = duplicate.getContent();
+                return;
+            }
+
+            MapWrapper_v1_20_R2.this.content = content;
+
+            for (UUID id : viewers.keySet()) {
+                sendContent(Bukkit.getPlayer(id));
+            }
+        }
+
+        @Override
+        public void sendContent(Player player) {
+            sendContent(player, false);
+        }
+
+        @Override
+        public void sendContent(Player player, boolean withoutQueue) {
+            if (!isViewing(player)) return;
+
+            int id = getMapId(player);
+            if (withoutQueue) {
+                MapSender_v1_20_R2.sendMap(id, MapWrapper_v1_20_R2.this.content, player);
+            } else {
+                MapSender_v1_20_R2.addToQueue(id, MapWrapper_v1_20_R2.this.content, player);
+            }
+        }
+
+        @Override
+        public void cancelSend() {
+            for (int s : viewers.values()) {
+                MapSender_v1_20_R2.cancelID(s);
+            }
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot, boolean force) {
+            if (!isViewing(player)) return;
+
+            if (player.getGameMode() == GameMode.CREATIVE && !force) return;
+
+            if (slot < 9) {
+                slot += 36;
+            } else if (slot > 35 && slot != 45) {
+                slot = 8 - (slot - 36);
+            }
+
+            CraftPlayer craftPlayer = (CraftPlayer) player;
+            int windowId = craftPlayer.getHandle().bR.j; //inventoryMenu containerId
+            int stateId = craftPlayer.getHandle().bR.j(); //inventoryMenu getStateId()
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            net.minecraft.world.item.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+
+            PacketPlayOutSetSlot packet = new PacketPlayOutSetSlot(windowId, stateId, slot, nmsStack);
+            ((CraftPlayer) player).getHandle().c.a(packet);
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot) {
+            showInInventory(player, slot, false);
+        }
+
+        @Override
+        public void showInHand(Player player, boolean force) {
+            if (player.getInventory().getItemInMainHand().getType() != Material.FILLED_MAP && !force) return;
+            showInInventory(player, player.getInventory().getHeldItemSlot(), force);
+        }
+
+        @Override
+        public void showInHand(Player player) {
+            showInHand(player, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame) {
+            showInFrame(player, frame, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame, boolean force) {
+            if (frame.getItem().getType() != Material.FILLED_MAP && !force) return;
+            showInFrame(player, frame.getEntityId());
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId) {
+            showInFrame(player, entityId, null);
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId, String debugInfo) {
+            if (!isViewing(player)) return;
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            if (debugInfo != null) {
+                ItemMeta itemMeta = stack.getItemMeta();
+                itemMeta.setDisplayName(debugInfo);
+                stack.setItemMeta(itemMeta);
+            }
+
+            Bukkit.getScheduler().runTask(MapReflectionAPI.getInstance(), () -> {
+                ItemFrame frame = getItemFrameById(player.getWorld(), entityId);
+                if (frame != null) {
+                    frame.removeMetadata("MAP_WRAPPER_REF", MapReflectionAPI.getInstance());
+                    frame.setMetadata("MAP_WRAPPER_REF", new FixedMetadataValue(MapReflectionAPI.getInstance(), MapWrapper_v1_20_R2.this));
+                }
+
+                sendItemFramePacket(player, entityId, stack, getMapId(player));
+            });
+        }
+
+        @Override
+        public void clearFrame(Player player, int entityId) {
+
+        }
+
+        @Override
+        public void clearFrame(Player player, ItemFrame frame) {
+
+        }
+
+        @Override
+        public ItemFrame getItemFrameById(World world, int entityId) {
+            CraftWorld craftWorld = (CraftWorld) world;
+
+            Entity entity = craftWorld.getHandle().a(entityId);
+            if (entity == null) return null;
+
+            if (entity instanceof ItemFrame) return (ItemFrame) entity;
+
+            return null;
+        }
+
+        private void sendItemFramePacket(Player player, int entityId, ItemStack stack, int mapId) {
+            net.minecraft.world.item.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+            nmsStack.w().a("map", mapId); //getOrCreateTag putInt
+
+            List<DataWatcher.b<?>> list = new ArrayList<>();
+            DataWatcher.b<?> dataWatcherItem = DataWatcher.b.a(EntityItemFrame.g, nmsStack);
+            list.add(dataWatcherItem);
+            PacketPlayOutEntityMetadata packet = new PacketPlayOutEntityMetadata(entityId, list);
+
+            ((CraftPlayer) player).getHandle().c.a(packet);
+        }
+    };
+
+    public MapWrapper_v1_20_R2(ArrayImage image) {
+        super(image);
+    }
+
+    @Override
+    public MapController getController() {
+        return controller;
+    }
+}

NMS-v1_20_R2/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/PacketListener_v1_20_R2.java

@@ -0,0 +1,126 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import io.netty.channel.*;
+import net.minecraft.network.NetworkManager;
+import net.minecraft.network.protocol.game.PacketPlayInSetCreativeSlot;
+import net.minecraft.network.protocol.game.PacketPlayInUseEntity;
+import net.minecraft.network.protocol.game.PacketPlayOutMap;
+import net.minecraft.world.EnumHand;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.phys.Vec3D;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_20_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_20_R2.inventory.CraftItemStack;
+import org.bukkit.entity.Player;
+import org.bukkit.util.Vector;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.events.CreateInventoryMapUpdateEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapCancelEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapInteractEvent;
+import tech.sbdevelopment.mapreflectionapi.listeners.PacketListener;
+
+import java.util.concurrent.TimeUnit;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.*;
+
+public class PacketListener_v1_20_R2 extends PacketListener {
+    @Override
+    protected void injectPlayer(Player p) {
+        ChannelDuplexHandler channelDuplexHandler = new ChannelDuplexHandler() {
+            @Override
+            //On send packet
+            public void write(ChannelHandlerContext ctx, Object packet, ChannelPromise promise) throws Exception {
+                if (packet instanceof PacketPlayOutMap packetPlayOutMap) {
+                    int id = (int) getDeclaredField(packetPlayOutMap, "a");
+
+                    if (id < 0) {
+                        //It's one of our maps, invert ID and let through!
+                        int newId = -id;
+                        setDeclaredField(packetPlayOutMap, "a", newId); //mapId
+                    } else {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapCancelEvent event = new MapCancelEvent(p, id, async);
+                        if (MapReflectionAPI.getMapManager().isIdUsedBy(p, id)) event.setCancelled(true);
+                        if (event.getHandlers().getRegisteredListeners().length > 0)
+                            Bukkit.getPluginManager().callEvent(event);
+
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.write(ctx, packet, promise);
+            }
+
+            @Override
+            //On receive packet
+            public void channelRead(ChannelHandlerContext ctx, Object packet) throws Exception {
+                if (packet instanceof PacketPlayInUseEntity packetPlayInUseEntity) {
+                    int entityId = (int) getDeclaredField(packetPlayInUseEntity, "a"); //entityId
+                    Object action = getDeclaredField(packetPlayInUseEntity, "b"); //action
+                    Enum<?> actionEnum = (Enum<?>) callDeclaredMethod(action, "a"); //action type
+                    EnumHand hand = hasField(action, "a") ? (EnumHand) getDeclaredField(action, "a") : null; //hand
+                    Vec3D pos = hasField(action, "b") ? (Vec3D) getDeclaredField(action, "b") : null; //pos
+
+                    if (Bukkit.getScheduler().callSyncMethod(plugin, () -> {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapInteractEvent event = new MapInteractEvent(p, entityId, actionEnum.ordinal(), pos != null ? vec3DToVector(pos) : null, hand != null ? hand.ordinal() : 0, async);
+                        if (event.getFrame() != null && event.getMapWrapper() != null) {
+                            Bukkit.getPluginManager().callEvent(event);
+                            return event.isCancelled();
+                        }
+                        return false;
+                    }).get(1, TimeUnit.SECONDS)) return;
+                } else if (packet instanceof PacketPlayInSetCreativeSlot packetPlayInSetCreativeSlot) {
+                    int slot = packetPlayInSetCreativeSlot.a();
+                    ItemStack item = packetPlayInSetCreativeSlot.d();
+
+                    boolean async = !plugin.getServer().isPrimaryThread();
+                    CreateInventoryMapUpdateEvent event = new CreateInventoryMapUpdateEvent(p, slot, CraftItemStack.asBukkitCopy(item), async);
+                    if (event.getMapWrapper() != null) {
+                        Bukkit.getPluginManager().callEvent(event);
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.channelRead(ctx, packet);
+            }
+        };
+
+        //The connection is private since 1.19.4 :|
+        NetworkManager networkManager = (NetworkManager) getField(((CraftPlayer) p).getHandle().c, "h");
+        ChannelPipeline pipeline = networkManager.n.pipeline(); //connection channel
+        pipeline.addBefore("packet_handler", p.getName(), channelDuplexHandler);
+    }
+
+    @Override
+    public void removePlayer(Player p) {
+        //The connection is private since 1.19.4 :|
+        NetworkManager networkManager = (NetworkManager) getField(((CraftPlayer) p).getHandle().c, "h");
+        Channel channel = networkManager.n; //connection channel
+        channel.eventLoop().submit(() -> channel.pipeline().remove(p.getName()));
+    }
+
+    @Override
+    protected Vector vec3DToVector(Object vec3d) {
+        if (!(vec3d instanceof Vec3D vec3dObj)) return new Vector(0, 0, 0);
+        return new Vector(vec3dObj.c, vec3dObj.d, vec3dObj.e); //x, y, z
+    }
+}

NMS-v1_20_R3/pom.xml

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ This file is part of MapReflectionAPI.
+  ~ Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>MapReflectionAPI</artifactId>
+        <groupId>tech.sbdevelopment</groupId>
+        <version>${revision}</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>MapReflectionAPI-NMS-v1_20_R3</artifactId>
+
+    <properties>
+        <NMSVersion>1.20.4-R0.1-SNAPSHOT</NMSVersion>
+        <jdk.version>17</jdk.version>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <release>${jdk.version}</release>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-deploy-plugin</artifactId>
+                <version>3.1.1</version>
+                <configuration>
+                    <skip>true</skip>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.bukkit</groupId>
+            <artifactId>craftbukkit</artifactId>
+            <version>${NMSVersion}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-API</artifactId>
+            <version>${revision}</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

NMS-v1_20_R3/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapSender_v1_20_R3.java

@@ -0,0 +1,138 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.network.protocol.game.PacketPlayOutMap;
+import net.minecraft.world.level.saveddata.maps.WorldMap;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_20_R3.entity.CraftPlayer;
+import org.bukkit.entity.Player;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * The {@link MapSender_v1_20_R3} sends the Map packets to players.
+ */
+public class MapSender_v1_20_R3 {
+    private static final List<QueuedMap> sendQueue = new ArrayList<>();
+    private static int senderID = -1;
+
+    private MapSender_v1_20_R3() {
+    }
+
+    /**
+     * Add a map to the send queue
+     *
+     * @param id      The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void addToQueue(final int id, final ArrayImage content, final Player player) {
+        QueuedMap toSend = new QueuedMap(id, content, player);
+        if (sendQueue.contains(toSend)) return;
+        sendQueue.add(toSend);
+
+        runSender();
+    }
+
+    /**
+     * Cancels a senderID in the sender queue
+     *
+     * @param s The senderID to cancel
+     */
+    public static void cancelID(int s) {
+        sendQueue.removeIf(queuedMap -> queuedMap.id == s);
+    }
+
+    /**
+     * Run the sender task
+     */
+    private static void runSender() {
+        if (Bukkit.getScheduler().isQueued(senderID) || Bukkit.getScheduler().isCurrentlyRunning(senderID) || sendQueue.isEmpty())
+            return;
+
+        senderID = Bukkit.getScheduler().scheduleSyncRepeatingTask(MapReflectionAPI.getInstance(), () -> {
+            if (sendQueue.isEmpty()) return;
+
+            for (int i = 0; i < Math.min(sendQueue.size(), 10 + 1); i++) {
+                QueuedMap current = sendQueue.get(0);
+                if (current == null) return;
+
+                sendMap(current.id, current.image, current.player);
+
+                if (!sendQueue.isEmpty()) sendQueue.remove(0);
+            }
+        }, 0, 2);
+    }
+
+    /**
+     * Send a map to a player
+     *
+     * @param id0     The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void sendMap(final int id0, final ArrayImage content, final Player player) {
+        if (player == null || !player.isOnline()) {
+            List<QueuedMap> toRemove = new ArrayList<>();
+            for (QueuedMap qMap : sendQueue) {
+                if (qMap == null) continue;
+
+                if (qMap.player == null || !qMap.player.isOnline()) {
+                    toRemove.add(qMap);
+                }
+            }
+            Bukkit.getScheduler().cancelTask(senderID);
+            sendQueue.removeAll(toRemove);
+
+            return;
+        }
+
+        final int id = -id0;
+        Bukkit.getScheduler().runTaskAsynchronously(MapReflectionAPI.getInstance(), () -> {
+            try {
+                WorldMap.b updateData = new WorldMap.b(
+                        content.minX, //X pos
+                        content.minY, //Y pos
+                        content.maxX, //X size (2nd X pos)
+                        content.maxY, //Y size (2nd Y pos)
+                        content.array //Data
+                );
+
+                PacketPlayOutMap packet = new PacketPlayOutMap(
+                        id, //ID
+                        (byte) 0, //Scale
+                        false, //Show icons
+                        new ArrayList<>(), //Icons
+                        updateData
+                );
+
+                ((CraftPlayer) player).getHandle().c.a(packet); //connection send()
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        });
+    }
+
+    record QueuedMap(int id, ArrayImage image, Player player) {
+    }
+}

NMS-v1_20_R3/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapWrapper_v1_20_R3.java

@@ -0,0 +1,239 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.network.protocol.game.PacketPlayOutEntityMetadata;
+import net.minecraft.network.protocol.game.PacketPlayOutSetSlot;
+import net.minecraft.network.syncher.DataWatcher;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.decoration.EntityItemFrame;
+import org.bukkit.*;
+import org.bukkit.craftbukkit.v1_20_R3.CraftWorld;
+import org.bukkit.craftbukkit.v1_20_R3.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_20_R3.inventory.CraftItemStack;
+import org.bukkit.entity.ItemFrame;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.metadata.FixedMetadataValue;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+import tech.sbdevelopment.mapreflectionapi.api.MapController;
+import tech.sbdevelopment.mapreflectionapi.api.MapWrapper;
+import tech.sbdevelopment.mapreflectionapi.api.exceptions.MapLimitExceededException;
+
+import java.util.*;
+
+public class MapWrapper_v1_20_R3 extends MapWrapper {
+    protected MapController controller = new MapController() {
+        private final Map<UUID, Integer> viewers = new HashMap<>();
+
+        @Override
+        public void addViewer(Player player) throws MapLimitExceededException {
+            if (!isViewing(player)) {
+                viewers.put(player.getUniqueId(), MapReflectionAPI.getMapManager().getNextFreeIdFor(player));
+            }
+        }
+
+        @Override
+        public void removeViewer(OfflinePlayer player) {
+            viewers.remove(player.getUniqueId());
+        }
+
+        @Override
+        public void clearViewers() {
+            for (UUID uuid : viewers.keySet()) {
+                viewers.remove(uuid);
+            }
+        }
+
+        @Override
+        public boolean isViewing(OfflinePlayer player) {
+            if (player == null) return false;
+            return viewers.containsKey(player.getUniqueId());
+        }
+
+        @Override
+        public int getMapId(OfflinePlayer player) {
+            if (isViewing(player)) {
+                return viewers.get(player.getUniqueId());
+            }
+            return -1;
+        }
+
+        @Override
+        public void update(ArrayImage content) {
+            MapWrapper duplicate = MapReflectionAPI.getMapManager().getDuplicate(content);
+            if (duplicate != null) {
+                MapWrapper_v1_20_R3.this.content = duplicate.getContent();
+                return;
+            }
+
+            MapWrapper_v1_20_R3.this.content = content;
+
+            for (UUID id : viewers.keySet()) {
+                sendContent(Bukkit.getPlayer(id));
+            }
+        }
+
+        @Override
+        public void sendContent(Player player) {
+            sendContent(player, false);
+        }
+
+        @Override
+        public void sendContent(Player player, boolean withoutQueue) {
+            if (!isViewing(player)) return;
+
+            int id = getMapId(player);
+            if (withoutQueue) {
+                MapSender_v1_20_R3.sendMap(id, MapWrapper_v1_20_R3.this.content, player);
+            } else {
+                MapSender_v1_20_R3.addToQueue(id, MapWrapper_v1_20_R3.this.content, player);
+            }
+        }
+
+        @Override
+        public void cancelSend() {
+            for (int s : viewers.values()) {
+                MapSender_v1_20_R3.cancelID(s);
+            }
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot, boolean force) {
+            if (!isViewing(player)) return;
+
+            if (player.getGameMode() == GameMode.CREATIVE && !force) return;
+
+            if (slot < 9) {
+                slot += 36;
+            } else if (slot > 35 && slot != 45) {
+                slot = 8 - (slot - 36);
+            }
+
+            CraftPlayer craftPlayer = (CraftPlayer) player;
+            int windowId = craftPlayer.getHandle().bR.j; //inventoryMenu containerId
+            int stateId = craftPlayer.getHandle().bR.j(); //inventoryMenu getStateId()
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            net.minecraft.world.item.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+
+            PacketPlayOutSetSlot packet = new PacketPlayOutSetSlot(windowId, stateId, slot, nmsStack);
+            ((CraftPlayer) player).getHandle().c.a(packet);
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot) {
+            showInInventory(player, slot, false);
+        }
+
+        @Override
+        public void showInHand(Player player, boolean force) {
+            if (player.getInventory().getItemInMainHand().getType() != Material.FILLED_MAP && !force) return;
+            showInInventory(player, player.getInventory().getHeldItemSlot(), force);
+        }
+
+        @Override
+        public void showInHand(Player player) {
+            showInHand(player, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame) {
+            showInFrame(player, frame, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame, boolean force) {
+            if (frame.getItem().getType() != Material.FILLED_MAP && !force) return;
+            showInFrame(player, frame.getEntityId());
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId) {
+            showInFrame(player, entityId, null);
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId, String debugInfo) {
+            if (!isViewing(player)) return;
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            if (debugInfo != null) {
+                ItemMeta itemMeta = stack.getItemMeta();
+                itemMeta.setDisplayName(debugInfo);
+                stack.setItemMeta(itemMeta);
+            }
+
+            Bukkit.getScheduler().runTask(MapReflectionAPI.getInstance(), () -> {
+                ItemFrame frame = getItemFrameById(player.getWorld(), entityId);
+                if (frame != null) {
+                    frame.removeMetadata("MAP_WRAPPER_REF", MapReflectionAPI.getInstance());
+                    frame.setMetadata("MAP_WRAPPER_REF", new FixedMetadataValue(MapReflectionAPI.getInstance(), MapWrapper_v1_20_R3.this));
+                }
+
+                sendItemFramePacket(player, entityId, stack, getMapId(player));
+            });
+        }
+
+        @Override
+        public void clearFrame(Player player, int entityId) {
+
+        }
+
+        @Override
+        public void clearFrame(Player player, ItemFrame frame) {
+
+        }
+
+        @Override
+        public ItemFrame getItemFrameById(World world, int entityId) {
+            CraftWorld craftWorld = (CraftWorld) world;
+
+            Entity entity = craftWorld.getHandle().a(entityId);
+            if (entity == null) return null;
+
+            if (entity instanceof ItemFrame) return (ItemFrame) entity;
+
+            return null;
+        }
+
+        private void sendItemFramePacket(Player player, int entityId, ItemStack stack, int mapId) {
+            net.minecraft.world.item.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+            nmsStack.w().a("map", mapId); //getOrCreateTag putInt
+
+            List<DataWatcher.b<?>> list = new ArrayList<>();
+            DataWatcher.b<?> dataWatcherItem = DataWatcher.b.a(EntityItemFrame.g, nmsStack);
+            list.add(dataWatcherItem);
+            PacketPlayOutEntityMetadata packet = new PacketPlayOutEntityMetadata(entityId, list);
+
+            ((CraftPlayer) player).getHandle().c.a(packet);
+        }
+    };
+
+    public MapWrapper_v1_20_R3(ArrayImage image) {
+        super(image);
+    }
+
+    @Override
+    public MapController getController() {
+        return controller;
+    }
+}

NMS-v1_20_R3/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/PacketListener_v1_20_R3.java

@@ -0,0 +1,126 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import io.netty.channel.*;
+import net.minecraft.network.NetworkManager;
+import net.minecraft.network.protocol.game.PacketPlayInSetCreativeSlot;
+import net.minecraft.network.protocol.game.PacketPlayInUseEntity;
+import net.minecraft.network.protocol.game.PacketPlayOutMap;
+import net.minecraft.world.EnumHand;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.phys.Vec3D;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_20_R3.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_20_R3.inventory.CraftItemStack;
+import org.bukkit.entity.Player;
+import org.bukkit.util.Vector;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.events.CreateInventoryMapUpdateEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapCancelEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapInteractEvent;
+import tech.sbdevelopment.mapreflectionapi.listeners.PacketListener;
+
+import java.util.concurrent.TimeUnit;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.*;
+
+public class PacketListener_v1_20_R3 extends PacketListener {
+    @Override
+    protected void injectPlayer(Player p) {
+        ChannelDuplexHandler channelDuplexHandler = new ChannelDuplexHandler() {
+            @Override
+            //On send packet
+            public void write(ChannelHandlerContext ctx, Object packet, ChannelPromise promise) throws Exception {
+                if (packet instanceof PacketPlayOutMap packetPlayOutMap) {
+                    int id = (int) getDeclaredField(packetPlayOutMap, "a");
+
+                    if (id < 0) {
+                        //It's one of our maps, invert ID and let through!
+                        int newId = -id;
+                        setDeclaredField(packetPlayOutMap, "a", newId); //mapId
+                    } else {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapCancelEvent event = new MapCancelEvent(p, id, async);
+                        if (MapReflectionAPI.getMapManager().isIdUsedBy(p, id)) event.setCancelled(true);
+                        if (event.getHandlers().getRegisteredListeners().length > 0)
+                            Bukkit.getPluginManager().callEvent(event);
+
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.write(ctx, packet, promise);
+            }
+
+            @Override
+            //On receive packet
+            public void channelRead(ChannelHandlerContext ctx, Object packet) throws Exception {
+                if (packet instanceof PacketPlayInUseEntity packetPlayInUseEntity) {
+                    int entityId = (int) getDeclaredField(packetPlayInUseEntity, "a"); //entityId
+                    Object action = getDeclaredField(packetPlayInUseEntity, "b"); //action
+                    Enum<?> actionEnum = (Enum<?>) callDeclaredMethod(action, "a"); //action type
+                    EnumHand hand = hasField(action, "a") ? (EnumHand) getDeclaredField(action, "a") : null; //hand
+                    Vec3D pos = hasField(action, "b") ? (Vec3D) getDeclaredField(action, "b") : null; //pos
+
+                    if (Bukkit.getScheduler().callSyncMethod(plugin, () -> {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapInteractEvent event = new MapInteractEvent(p, entityId, actionEnum.ordinal(), pos != null ? vec3DToVector(pos) : null, hand != null ? hand.ordinal() : 0, async);
+                        if (event.getFrame() != null && event.getMapWrapper() != null) {
+                            Bukkit.getPluginManager().callEvent(event);
+                            return event.isCancelled();
+                        }
+                        return false;
+                    }).get(1, TimeUnit.SECONDS)) return;
+                } else if (packet instanceof PacketPlayInSetCreativeSlot packetPlayInSetCreativeSlot) {
+                    int slot = packetPlayInSetCreativeSlot.a();
+                    ItemStack item = packetPlayInSetCreativeSlot.d();
+
+                    boolean async = !plugin.getServer().isPrimaryThread();
+                    CreateInventoryMapUpdateEvent event = new CreateInventoryMapUpdateEvent(p, slot, CraftItemStack.asBukkitCopy(item), async);
+                    if (event.getMapWrapper() != null) {
+                        Bukkit.getPluginManager().callEvent(event);
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.channelRead(ctx, packet);
+            }
+        };
+
+        //The connection is private since 1.19.4 :|
+        NetworkManager networkManager = (NetworkManager) getField(((CraftPlayer) p).getHandle().c, "h");
+        ChannelPipeline pipeline = networkManager.n.pipeline(); //connection channel
+        pipeline.addBefore("packet_handler", p.getName(), channelDuplexHandler);
+    }
+
+    @Override
+    public void removePlayer(Player p) {
+        //The connection is private since 1.19.4 :|
+        NetworkManager networkManager = (NetworkManager) getField(((CraftPlayer) p).getHandle().c, "h");
+        Channel channel = networkManager.n; //connection channel
+        channel.eventLoop().submit(() -> channel.pipeline().remove(p.getName()));
+    }
+
+    @Override
+    protected Vector vec3DToVector(Object vec3d) {
+        if (!(vec3d instanceof Vec3D vec3dObj)) return new Vector(0, 0, 0);
+        return new Vector(vec3dObj.c, vec3dObj.d, vec3dObj.e); //x, y, z
+    }
+}

NMS-v1_20_R4/pom.xml

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ This file is part of MapReflectionAPI.
+  ~ Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>MapReflectionAPI</artifactId>
+        <groupId>tech.sbdevelopment</groupId>
+        <version>${revision}</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>MapReflectionAPI-NMS-v1_20_R4</artifactId>
+
+    <properties>
+        <NMSVersion>1.20.6-R0.1-SNAPSHOT</NMSVersion>
+        <jdk.version>21</jdk.version>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <release>${jdk.version}</release>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-deploy-plugin</artifactId>
+                <version>3.1.1</version>
+                <configuration>
+                    <skip>true</skip>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.bukkit</groupId>
+            <artifactId>craftbukkit</artifactId>
+            <version>${NMSVersion}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-API</artifactId>
+            <version>${revision}</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

NMS-v1_20_R4/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapSender_v1_20_R4.java

@@ -0,0 +1,141 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.network.protocol.game.PacketPlayOutMap;
+import net.minecraft.world.level.saveddata.maps.MapId;
+import net.minecraft.world.level.saveddata.maps.WorldMap;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_20_R4.entity.CraftPlayer;
+import org.bukkit.entity.Player;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * The {@link MapSender_v1_20_R4} sends the Map packets to players.
+ */
+public class MapSender_v1_20_R4 {
+    private static final List<QueuedMap> sendQueue = new ArrayList<>();
+    private static int senderID = -1;
+
+    private MapSender_v1_20_R4() {
+    }
+
+    /**
+     * Add a map to the send queue
+     *
+     * @param id      The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void addToQueue(final int id, final ArrayImage content, final Player player) {
+        QueuedMap toSend = new QueuedMap(id, content, player);
+        if (sendQueue.contains(toSend)) return;
+        sendQueue.add(toSend);
+
+        runSender();
+    }
+
+    /**
+     * Cancels a senderID in the sender queue
+     *
+     * @param s The senderID to cancel
+     */
+    public static void cancelID(int s) {
+        sendQueue.removeIf(queuedMap -> queuedMap.id == s);
+    }
+
+    /**
+     * Run the sender task
+     */
+    private static void runSender() {
+        if (Bukkit.getScheduler().isQueued(senderID) || Bukkit.getScheduler().isCurrentlyRunning(senderID) || sendQueue.isEmpty())
+            return;
+
+        senderID = Bukkit.getScheduler().scheduleSyncRepeatingTask(MapReflectionAPI.getInstance(), () -> {
+            if (sendQueue.isEmpty()) return;
+
+            for (int i = 0; i < Math.min(sendQueue.size(), 10 + 1); i++) {
+                QueuedMap current = sendQueue.get(0);
+                if (current == null) return;
+
+                sendMap(current.id, current.image, current.player);
+
+                if (!sendQueue.isEmpty()) sendQueue.remove(0);
+            }
+        }, 0, 2);
+    }
+
+    /**
+     * Send a map to a player
+     *
+     * @param id0     The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void sendMap(final int id0, final ArrayImage content, final Player player) {
+        if (player == null || !player.isOnline()) {
+            List<QueuedMap> toRemove = new ArrayList<>();
+            for (QueuedMap qMap : sendQueue) {
+                if (qMap == null) continue;
+
+                if (qMap.player == null || !qMap.player.isOnline()) {
+                    toRemove.add(qMap);
+                }
+            }
+            Bukkit.getScheduler().cancelTask(senderID);
+            sendQueue.removeAll(toRemove);
+
+            return;
+        }
+
+        final int id = -id0;
+        Bukkit.getScheduler().runTaskAsynchronously(MapReflectionAPI.getInstance(), () -> {
+            try {
+                WorldMap.b updateData = new WorldMap.b(
+                        content.minX, //X pos
+                        content.minY, //Y pos
+                        content.maxX, //X size (2nd X pos)
+                        content.maxY, //Y size (2nd Y pos)
+                        content.array //Data
+                );
+
+                MapId mapId = new MapId(id);
+
+                PacketPlayOutMap packet = new PacketPlayOutMap(
+                        mapId, //ID
+                        (byte) 0, //Scale
+                        false, //Show icons
+                        new ArrayList<>(), //Icons
+                        updateData
+                );
+
+                ((CraftPlayer) player).getHandle().c.a(packet); //connection send()
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        });
+    }
+
+    record QueuedMap(int id, ArrayImage image, Player player) {
+    }
+}

NMS-v1_20_R4/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapWrapper_v1_20_R4.java

@@ -0,0 +1,243 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.core.component.DataComponentType;
+import net.minecraft.core.component.DataComponents;
+import net.minecraft.network.protocol.game.PacketPlayOutEntityMetadata;
+import net.minecraft.network.protocol.game.PacketPlayOutSetSlot;
+import net.minecraft.network.syncher.DataWatcher;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.decoration.EntityItemFrame;
+import net.minecraft.world.level.saveddata.maps.MapId;
+import org.bukkit.*;
+import org.bukkit.craftbukkit.v1_20_R4.CraftWorld;
+import org.bukkit.craftbukkit.v1_20_R4.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_20_R4.inventory.CraftItemStack;
+import org.bukkit.entity.ItemFrame;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.metadata.FixedMetadataValue;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+import tech.sbdevelopment.mapreflectionapi.api.MapController;
+import tech.sbdevelopment.mapreflectionapi.api.MapWrapper;
+import tech.sbdevelopment.mapreflectionapi.api.exceptions.MapLimitExceededException;
+
+import java.util.*;
+
+public class MapWrapper_v1_20_R4 extends MapWrapper {
+    protected MapController controller = new MapController() {
+        private final Map<UUID, Integer> viewers = new HashMap<>();
+
+        @Override
+        public void addViewer(Player player) throws MapLimitExceededException {
+            if (!isViewing(player)) {
+                viewers.put(player.getUniqueId(), MapReflectionAPI.getMapManager().getNextFreeIdFor(player));
+            }
+        }
+
+        @Override
+        public void removeViewer(OfflinePlayer player) {
+            viewers.remove(player.getUniqueId());
+        }
+
+        @Override
+        public void clearViewers() {
+            for (UUID uuid : viewers.keySet()) {
+                viewers.remove(uuid);
+            }
+        }
+
+        @Override
+        public boolean isViewing(OfflinePlayer player) {
+            if (player == null) return false;
+            return viewers.containsKey(player.getUniqueId());
+        }
+
+        @Override
+        public int getMapId(OfflinePlayer player) {
+            if (isViewing(player)) {
+                return viewers.get(player.getUniqueId());
+            }
+            return -1;
+        }
+
+        @Override
+        public void update(ArrayImage content) {
+            MapWrapper duplicate = MapReflectionAPI.getMapManager().getDuplicate(content);
+            if (duplicate != null) {
+                MapWrapper_v1_20_R4.this.content = duplicate.getContent();
+                return;
+            }
+
+            MapWrapper_v1_20_R4.this.content = content;
+
+            for (UUID id : viewers.keySet()) {
+                sendContent(Bukkit.getPlayer(id));
+            }
+        }
+
+        @Override
+        public void sendContent(Player player) {
+            sendContent(player, false);
+        }
+
+        @Override
+        public void sendContent(Player player, boolean withoutQueue) {
+            if (!isViewing(player)) return;
+
+            int id = getMapId(player);
+            if (withoutQueue) {
+                MapSender_v1_20_R4.sendMap(id, MapWrapper_v1_20_R4.this.content, player);
+            } else {
+                MapSender_v1_20_R4.addToQueue(id, MapWrapper_v1_20_R4.this.content, player);
+            }
+        }
+
+        @Override
+        public void cancelSend() {
+            for (int s : viewers.values()) {
+                MapSender_v1_20_R4.cancelID(s);
+            }
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot, boolean force) {
+            if (!isViewing(player)) return;
+
+            if (player.getGameMode() == GameMode.CREATIVE && !force) return;
+
+            if (slot < 9) {
+                slot += 36;
+            } else if (slot > 35 && slot != 45) {
+                slot = 8 - (slot - 36);
+            }
+
+            CraftPlayer craftPlayer = (CraftPlayer) player;
+            int windowId = craftPlayer.getHandle().cb.j; //inventoryMenu containerId
+            int stateId = craftPlayer.getHandle().cb.j(); //inventoryMenu getStateId()
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            net.minecraft.world.item.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+
+            PacketPlayOutSetSlot packet = new PacketPlayOutSetSlot(windowId, stateId, slot, nmsStack);
+            ((CraftPlayer) player).getHandle().c.a(packet);
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot) {
+            showInInventory(player, slot, false);
+        }
+
+        @Override
+        public void showInHand(Player player, boolean force) {
+            if (player.getInventory().getItemInMainHand().getType() != Material.FILLED_MAP && !force) return;
+            showInInventory(player, player.getInventory().getHeldItemSlot(), force);
+        }
+
+        @Override
+        public void showInHand(Player player) {
+            showInHand(player, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame) {
+            showInFrame(player, frame, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame, boolean force) {
+            if (frame.getItem().getType() != Material.FILLED_MAP && !force) return;
+            showInFrame(player, frame.getEntityId());
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId) {
+            showInFrame(player, entityId, null);
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId, String debugInfo) {
+            if (!isViewing(player)) return;
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            if (debugInfo != null) {
+                ItemMeta itemMeta = stack.getItemMeta();
+                itemMeta.setDisplayName(debugInfo);
+                stack.setItemMeta(itemMeta);
+            }
+
+            Bukkit.getScheduler().runTask(MapReflectionAPI.getInstance(), () -> {
+                ItemFrame frame = getItemFrameById(player.getWorld(), entityId);
+                if (frame != null) {
+                    frame.removeMetadata("MAP_WRAPPER_REF", MapReflectionAPI.getInstance());
+                    frame.setMetadata("MAP_WRAPPER_REF", new FixedMetadataValue(MapReflectionAPI.getInstance(), MapWrapper_v1_20_R4.this));
+                }
+
+                sendItemFramePacket(player, entityId, stack, getMapId(player));
+            });
+        }
+
+        @Override
+        public void clearFrame(Player player, int entityId) {
+
+        }
+
+        @Override
+        public void clearFrame(Player player, ItemFrame frame) {
+
+        }
+
+        @Override
+        public ItemFrame getItemFrameById(World world, int entityId) {
+            CraftWorld craftWorld = (CraftWorld) world;
+
+            Entity entity = craftWorld.getHandle().a(entityId);
+            if (entity == null) return null;
+
+            if (entity instanceof ItemFrame) return (ItemFrame) entity;
+
+            return null;
+        }
+
+        private void sendItemFramePacket(Player player, int entityId, ItemStack stack, int mapId) {
+            net.minecraft.world.item.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+            MapId mapId1 = new MapId(mapId);
+            nmsStack.b(DataComponents.B, mapId1); //set
+
+            List<DataWatcher.c<?>> list = new ArrayList<>();
+            DataWatcher.c<?> dataWatcherItem = DataWatcher.c.a(EntityItemFrame.g, nmsStack);
+            list.add(dataWatcherItem);
+            PacketPlayOutEntityMetadata packet = new PacketPlayOutEntityMetadata(entityId, list);
+
+            ((CraftPlayer) player).getHandle().c.a(packet);
+        }
+    };
+
+    public MapWrapper_v1_20_R4(ArrayImage image) {
+        super(image);
+    }
+
+    @Override
+    public MapController getController() {
+        return controller;
+    }
+}

NMS-v1_20_R4/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/PacketListener_v1_20_R4.java

@@ -0,0 +1,126 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import io.netty.channel.*;
+import net.minecraft.network.NetworkManager;
+import net.minecraft.network.protocol.game.PacketPlayInSetCreativeSlot;
+import net.minecraft.network.protocol.game.PacketPlayInUseEntity;
+import net.minecraft.network.protocol.game.PacketPlayOutMap;
+import net.minecraft.world.EnumHand;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.phys.Vec3D;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_20_R4.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_20_R4.inventory.CraftItemStack;
+import org.bukkit.entity.Player;
+import org.bukkit.util.Vector;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.events.CreateInventoryMapUpdateEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapCancelEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapInteractEvent;
+import tech.sbdevelopment.mapreflectionapi.listeners.PacketListener;
+
+import java.util.concurrent.TimeUnit;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.*;
+
+public class PacketListener_v1_20_R4 extends PacketListener {
+    @Override
+    protected void injectPlayer(Player p) {
+        ChannelDuplexHandler channelDuplexHandler = new ChannelDuplexHandler() {
+            @Override
+            //On send packet
+            public void write(ChannelHandlerContext ctx, Object packet, ChannelPromise promise) throws Exception {
+                if (packet instanceof PacketPlayOutMap packetPlayOutMap) {
+                    int id = (int) getDeclaredField(packetPlayOutMap, "a");
+
+                    if (id < 0) {
+                        //It's one of our maps, invert ID and let through!
+                        int newId = -id;
+                        setDeclaredField(packetPlayOutMap, "a", newId); //mapId
+                    } else {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapCancelEvent event = new MapCancelEvent(p, id, async);
+                        if (MapReflectionAPI.getMapManager().isIdUsedBy(p, id)) event.setCancelled(true);
+                        if (event.getHandlers().getRegisteredListeners().length > 0)
+                            Bukkit.getPluginManager().callEvent(event);
+
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.write(ctx, packet, promise);
+            }
+
+            @Override
+            //On receive packet
+            public void channelRead(ChannelHandlerContext ctx, Object packet) throws Exception {
+                if (packet instanceof PacketPlayInUseEntity packetPlayInUseEntity) {
+                    int entityId = (int) getDeclaredField(packetPlayInUseEntity, "a"); //entityId
+                    Object action = getDeclaredField(packetPlayInUseEntity, "b"); //action
+                    Enum<?> actionEnum = (Enum<?>) callDeclaredMethod(action, "a"); //action type
+                    EnumHand hand = hasField(action, "a") ? (EnumHand) getDeclaredField(action, "a") : null; //hand
+                    Vec3D pos = hasField(action, "b") ? (Vec3D) getDeclaredField(action, "b") : null; //pos
+
+                    if (Bukkit.getScheduler().callSyncMethod(plugin, () -> {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapInteractEvent event = new MapInteractEvent(p, entityId, actionEnum.ordinal(), pos != null ? vec3DToVector(pos) : null, hand != null ? hand.ordinal() : 0, async);
+                        if (event.getFrame() != null && event.getMapWrapper() != null) {
+                            Bukkit.getPluginManager().callEvent(event);
+                            return event.isCancelled();
+                        }
+                        return false;
+                    }).get(1, TimeUnit.SECONDS)) return;
+                } else if (packet instanceof PacketPlayInSetCreativeSlot packetPlayInSetCreativeSlot) {
+                    int slot = (int) getDeclaredField(packetPlayInSetCreativeSlot, supports(20, 4) ? "b" : "a"); //slot, 1.20.5 = b, lower is a
+                    ItemStack item = (ItemStack) getDeclaredField(packetPlayInSetCreativeSlot, supports(20, 4) ? "e" : "d"); //item, 1.20.5 = e, lower is d
+
+                    boolean async = !plugin.getServer().isPrimaryThread();
+                    CreateInventoryMapUpdateEvent event = new CreateInventoryMapUpdateEvent(p, slot, CraftItemStack.asBukkitCopy(item), async);
+                    if (event.getMapWrapper() != null) {
+                        Bukkit.getPluginManager().callEvent(event);
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.channelRead(ctx, packet);
+            }
+        };
+
+        //The connection is private since 1.19.4 :|
+        NetworkManager networkManager = (NetworkManager) getField(((CraftPlayer) p).getHandle().c, "h");
+        ChannelPipeline pipeline = networkManager.n.pipeline(); //connection channel
+        pipeline.addBefore("packet_handler", p.getName(), channelDuplexHandler);
+    }
+
+    @Override
+    public void removePlayer(Player p) {
+        //The connection is private since 1.19.4 :|
+        NetworkManager networkManager = (NetworkManager) getField(((CraftPlayer) p).getHandle().c, "h");
+        Channel channel = networkManager.n; //connection channel
+        channel.eventLoop().submit(() -> channel.pipeline().remove(p.getName()));
+    }
+
+    @Override
+    protected Vector vec3DToVector(Object vec3d) {
+        if (!(vec3d instanceof Vec3D vec3dObj)) return new Vector(0, 0, 0);
+        return new Vector(vec3dObj.c, vec3dObj.d, vec3dObj.e); //x, y, z
+    }
+}

NMS-v1_21_R1/pom.xml

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ This file is part of MapReflectionAPI.
+  ~ Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>MapReflectionAPI</artifactId>
+        <groupId>tech.sbdevelopment</groupId>
+        <version>${revision}</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>MapReflectionAPI-NMS-v1_21_R1</artifactId>
+
+    <properties>
+        <NMSVersion>1.21-R0.1-SNAPSHOT</NMSVersion>
+        <jdk.version>21</jdk.version>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <release>${jdk.version}</release>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-deploy-plugin</artifactId>
+                <version>3.1.1</version>
+                <configuration>
+                    <skip>true</skip>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.bukkit</groupId>
+            <artifactId>craftbukkit</artifactId>
+            <version>${NMSVersion}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-API</artifactId>
+            <version>${revision}</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

NMS-v1_21_R1/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapSender_v1_21_R1.java

@@ -0,0 +1,141 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.network.protocol.game.PacketPlayOutMap;
+import net.minecraft.world.level.saveddata.maps.MapId;
+import net.minecraft.world.level.saveddata.maps.WorldMap;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_21_R1.entity.CraftPlayer;
+import org.bukkit.entity.Player;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * The {@link MapSender_v1_21_R1} sends the Map packets to players.
+ */
+public class MapSender_v1_21_R1 {
+    private static final List<QueuedMap> sendQueue = new ArrayList<>();
+    private static int senderID = -1;
+
+    private MapSender_v1_21_R1() {
+    }
+
+    /**
+     * Add a map to the send queue
+     *
+     * @param id      The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void addToQueue(final int id, final ArrayImage content, final Player player) {
+        QueuedMap toSend = new QueuedMap(id, content, player);
+        if (sendQueue.contains(toSend)) return;
+        sendQueue.add(toSend);
+
+        runSender();
+    }
+
+    /**
+     * Cancels a senderID in the sender queue
+     *
+     * @param s The senderID to cancel
+     */
+    public static void cancelID(int s) {
+        sendQueue.removeIf(queuedMap -> queuedMap.id == s);
+    }
+
+    /**
+     * Run the sender task
+     */
+    private static void runSender() {
+        if (Bukkit.getScheduler().isQueued(senderID) || Bukkit.getScheduler().isCurrentlyRunning(senderID) || sendQueue.isEmpty())
+            return;
+
+        senderID = Bukkit.getScheduler().scheduleSyncRepeatingTask(MapReflectionAPI.getInstance(), () -> {
+            if (sendQueue.isEmpty()) return;
+
+            for (int i = 0; i < Math.min(sendQueue.size(), 10 + 1); i++) {
+                QueuedMap current = sendQueue.get(0);
+                if (current == null) return;
+
+                sendMap(current.id, current.image, current.player);
+
+                if (!sendQueue.isEmpty()) sendQueue.remove(0);
+            }
+        }, 0, 2);
+    }
+
+    /**
+     * Send a map to a player
+     *
+     * @param id0     The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void sendMap(final int id0, final ArrayImage content, final Player player) {
+        if (player == null || !player.isOnline()) {
+            List<QueuedMap> toRemove = new ArrayList<>();
+            for (QueuedMap qMap : sendQueue) {
+                if (qMap == null) continue;
+
+                if (qMap.player == null || !qMap.player.isOnline()) {
+                    toRemove.add(qMap);
+                }
+            }
+            Bukkit.getScheduler().cancelTask(senderID);
+            sendQueue.removeAll(toRemove);
+
+            return;
+        }
+
+        final int id = -id0;
+        Bukkit.getScheduler().runTaskAsynchronously(MapReflectionAPI.getInstance(), () -> {
+            try {
+                WorldMap.b updateData = new WorldMap.b(
+                        content.minX, //X pos
+                        content.minY, //Y pos
+                        content.maxX, //X size (2nd X pos)
+                        content.maxY, //Y size (2nd Y pos)
+                        content.array //Data
+                );
+
+                MapId mapId = new MapId(id);
+
+                PacketPlayOutMap packet = new PacketPlayOutMap(
+                        mapId, //ID
+                        (byte) 0, //Scale
+                        false, //Show icons
+                        new ArrayList<>(), //Icons
+                        updateData
+                );
+
+                ((CraftPlayer) player).getHandle().c.a(packet); //connection send()
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        });
+    }
+
+    record QueuedMap(int id, ArrayImage image, Player player) {
+    }
+}

NMS-v1_21_R1/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapWrapper_v1_21_R1.java

@@ -0,0 +1,243 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.core.component.DataComponentType;
+import net.minecraft.core.component.DataComponents;
+import net.minecraft.network.protocol.game.PacketPlayOutEntityMetadata;
+import net.minecraft.network.protocol.game.PacketPlayOutSetSlot;
+import net.minecraft.network.syncher.DataWatcher;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.decoration.EntityItemFrame;
+import net.minecraft.world.level.saveddata.maps.MapId;
+import org.bukkit.*;
+import org.bukkit.craftbukkit.v1_21_R1.CraftWorld;
+import org.bukkit.craftbukkit.v1_21_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_21_R1.inventory.CraftItemStack;
+import org.bukkit.entity.ItemFrame;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.metadata.FixedMetadataValue;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+import tech.sbdevelopment.mapreflectionapi.api.MapController;
+import tech.sbdevelopment.mapreflectionapi.api.MapWrapper;
+import tech.sbdevelopment.mapreflectionapi.api.exceptions.MapLimitExceededException;
+
+import java.util.*;
+
+public class MapWrapper_v1_21_R1 extends MapWrapper {
+    protected MapController controller = new MapController() {
+        private final Map<UUID, Integer> viewers = new HashMap<>();
+
+        @Override
+        public void addViewer(Player player) throws MapLimitExceededException {
+            if (!isViewing(player)) {
+                viewers.put(player.getUniqueId(), MapReflectionAPI.getMapManager().getNextFreeIdFor(player));
+            }
+        }
+
+        @Override
+        public void removeViewer(OfflinePlayer player) {
+            viewers.remove(player.getUniqueId());
+        }
+
+        @Override
+        public void clearViewers() {
+            for (UUID uuid : viewers.keySet()) {
+                viewers.remove(uuid);
+            }
+        }
+
+        @Override
+        public boolean isViewing(OfflinePlayer player) {
+            if (player == null) return false;
+            return viewers.containsKey(player.getUniqueId());
+        }
+
+        @Override
+        public int getMapId(OfflinePlayer player) {
+            if (isViewing(player)) {
+                return viewers.get(player.getUniqueId());
+            }
+            return -1;
+        }
+
+        @Override
+        public void update(ArrayImage content) {
+            MapWrapper duplicate = MapReflectionAPI.getMapManager().getDuplicate(content);
+            if (duplicate != null) {
+                MapWrapper_v1_21_R1.this.content = duplicate.getContent();
+                return;
+            }
+
+            MapWrapper_v1_21_R1.this.content = content;
+
+            for (UUID id : viewers.keySet()) {
+                sendContent(Bukkit.getPlayer(id));
+            }
+        }
+
+        @Override
+        public void sendContent(Player player) {
+            sendContent(player, false);
+        }
+
+        @Override
+        public void sendContent(Player player, boolean withoutQueue) {
+            if (!isViewing(player)) return;
+
+            int id = getMapId(player);
+            if (withoutQueue) {
+                MapSender_v1_21_R1.sendMap(id, MapWrapper_v1_21_R1.this.content, player);
+            } else {
+                MapSender_v1_21_R1.addToQueue(id, MapWrapper_v1_21_R1.this.content, player);
+            }
+        }
+
+        @Override
+        public void cancelSend() {
+            for (int s : viewers.values()) {
+                MapSender_v1_21_R1.cancelID(s);
+            }
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot, boolean force) {
+            if (!isViewing(player)) return;
+
+            if (player.getGameMode() == GameMode.CREATIVE && !force) return;
+
+            if (slot < 9) {
+                slot += 36;
+            } else if (slot > 35 && slot != 45) {
+                slot = 8 - (slot - 36);
+            }
+
+            CraftPlayer craftPlayer = (CraftPlayer) player;
+            int windowId = craftPlayer.getHandle().cc.j; //inventoryMenu containerId
+            int stateId = craftPlayer.getHandle().cc.j(); //inventoryMenu getStateId()
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            net.minecraft.world.item.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+
+            PacketPlayOutSetSlot packet = new PacketPlayOutSetSlot(windowId, stateId, slot, nmsStack);
+            ((CraftPlayer) player).getHandle().c.a(packet);
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot) {
+            showInInventory(player, slot, false);
+        }
+
+        @Override
+        public void showInHand(Player player, boolean force) {
+            if (player.getInventory().getItemInMainHand().getType() != Material.FILLED_MAP && !force) return;
+            showInInventory(player, player.getInventory().getHeldItemSlot(), force);
+        }
+
+        @Override
+        public void showInHand(Player player) {
+            showInHand(player, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame) {
+            showInFrame(player, frame, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame, boolean force) {
+            if (frame.getItem().getType() != Material.FILLED_MAP && !force) return;
+            showInFrame(player, frame.getEntityId());
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId) {
+            showInFrame(player, entityId, null);
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId, String debugInfo) {
+            if (!isViewing(player)) return;
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            if (debugInfo != null) {
+                ItemMeta itemMeta = stack.getItemMeta();
+                itemMeta.setDisplayName(debugInfo);
+                stack.setItemMeta(itemMeta);
+            }
+
+            Bukkit.getScheduler().runTask(MapReflectionAPI.getInstance(), () -> {
+                ItemFrame frame = getItemFrameById(player.getWorld(), entityId);
+                if (frame != null) {
+                    frame.removeMetadata("MAP_WRAPPER_REF", MapReflectionAPI.getInstance());
+                    frame.setMetadata("MAP_WRAPPER_REF", new FixedMetadataValue(MapReflectionAPI.getInstance(), MapWrapper_v1_21_R1.this));
+                }
+
+                sendItemFramePacket(player, entityId, stack, getMapId(player));
+            });
+        }
+
+        @Override
+        public void clearFrame(Player player, int entityId) {
+
+        }
+
+        @Override
+        public void clearFrame(Player player, ItemFrame frame) {
+
+        }
+
+        @Override
+        public ItemFrame getItemFrameById(World world, int entityId) {
+            CraftWorld craftWorld = (CraftWorld) world;
+
+            Entity entity = craftWorld.getHandle().a(entityId);
+            if (entity == null) return null;
+
+            if (entity instanceof ItemFrame) return (ItemFrame) entity;
+
+            return null;
+        }
+
+        private void sendItemFramePacket(Player player, int entityId, ItemStack stack, int mapId) {
+            net.minecraft.world.item.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+            MapId mapId1 = new MapId(mapId);
+            nmsStack.b(DataComponents.B, mapId1); //set
+
+            List<DataWatcher.c<?>> list = new ArrayList<>();
+            DataWatcher.c<?> dataWatcherItem = DataWatcher.c.a(EntityItemFrame.f, nmsStack);
+            list.add(dataWatcherItem);
+            PacketPlayOutEntityMetadata packet = new PacketPlayOutEntityMetadata(entityId, list);
+
+            ((CraftPlayer) player).getHandle().c.a(packet);
+        }
+    };
+
+    public MapWrapper_v1_21_R1(ArrayImage image) {
+        super(image);
+    }
+
+    @Override
+    public MapController getController() {
+        return controller;
+    }
+}

NMS-v1_21_R1/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/PacketListener_v1_21_R1.java

@@ -0,0 +1,126 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import io.netty.channel.*;
+import net.minecraft.network.NetworkManager;
+import net.minecraft.network.protocol.game.PacketPlayInSetCreativeSlot;
+import net.minecraft.network.protocol.game.PacketPlayInUseEntity;
+import net.minecraft.network.protocol.game.PacketPlayOutMap;
+import net.minecraft.world.EnumHand;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.phys.Vec3D;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_21_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_21_R1.inventory.CraftItemStack;
+import org.bukkit.entity.Player;
+import org.bukkit.util.Vector;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.events.CreateInventoryMapUpdateEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapCancelEvent;
+import tech.sbdevelopment.mapreflectionapi.api.events.MapInteractEvent;
+import tech.sbdevelopment.mapreflectionapi.listeners.PacketListener;
+
+import java.util.concurrent.TimeUnit;
+
+import static tech.sbdevelopment.mapreflectionapi.utils.ReflectionUtil.*;
+
+public class PacketListener_v1_21_R1 extends PacketListener {
+    @Override
+    protected void injectPlayer(Player p) {
+        ChannelDuplexHandler channelDuplexHandler = new ChannelDuplexHandler() {
+            @Override
+            //On send packet
+            public void write(ChannelHandlerContext ctx, Object packet, ChannelPromise promise) throws Exception {
+                if (packet instanceof PacketPlayOutMap packetPlayOutMap) {
+                    int id = (int) getDeclaredField(packetPlayOutMap, "a");
+
+                    if (id < 0) {
+                        //It's one of our maps, invert ID and let through!
+                        int newId = -id;
+                        setDeclaredField(packetPlayOutMap, "a", newId); //mapId
+                    } else {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapCancelEvent event = new MapCancelEvent(p, id, async);
+                        if (MapReflectionAPI.getMapManager().isIdUsedBy(p, id)) event.setCancelled(true);
+                        if (event.getHandlers().getRegisteredListeners().length > 0)
+                            Bukkit.getPluginManager().callEvent(event);
+
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.write(ctx, packet, promise);
+            }
+
+            @Override
+            //On receive packet
+            public void channelRead(ChannelHandlerContext ctx, Object packet) throws Exception {
+                if (packet instanceof PacketPlayInUseEntity packetPlayInUseEntity) {
+                    int entityId = (int) getDeclaredField(packetPlayInUseEntity, "a"); //entityId
+                    Object action = getDeclaredField(packetPlayInUseEntity, "b"); //action
+                    Enum<?> actionEnum = (Enum<?>) callDeclaredMethod(action, "a"); //action type
+                    EnumHand hand = hasField(action, "a") ? (EnumHand) getDeclaredField(action, "a") : null; //hand
+                    Vec3D pos = hasField(action, "b") ? (Vec3D) getDeclaredField(action, "b") : null; //pos
+
+                    if (Bukkit.getScheduler().callSyncMethod(plugin, () -> {
+                        boolean async = !plugin.getServer().isPrimaryThread();
+                        MapInteractEvent event = new MapInteractEvent(p, entityId, actionEnum.ordinal(), pos != null ? vec3DToVector(pos) : null, hand != null ? hand.ordinal() : 0, async);
+                        if (event.getFrame() != null && event.getMapWrapper() != null) {
+                            Bukkit.getPluginManager().callEvent(event);
+                            return event.isCancelled();
+                        }
+                        return false;
+                    }).get(1, TimeUnit.SECONDS)) return;
+                } else if (packet instanceof PacketPlayInSetCreativeSlot packetPlayInSetCreativeSlot) {
+                    int slot = (int) getDeclaredField(packetPlayInSetCreativeSlot, supports(20, 4) ? "b" : "a"); //slot, 1.20.5 = b, lower is a
+                    ItemStack item = (ItemStack) getDeclaredField(packetPlayInSetCreativeSlot, supports(20, 4) ? "e" : "d"); //item, 1.20.5 = e, lower is d
+
+                    boolean async = !plugin.getServer().isPrimaryThread();
+                    CreateInventoryMapUpdateEvent event = new CreateInventoryMapUpdateEvent(p, slot, CraftItemStack.asBukkitCopy(item), async);
+                    if (event.getMapWrapper() != null) {
+                        Bukkit.getPluginManager().callEvent(event);
+                        if (event.isCancelled()) return;
+                    }
+                }
+
+                super.channelRead(ctx, packet);
+            }
+        };
+
+        //The connection is private since 1.19.4 :|
+        NetworkManager networkManager = (NetworkManager) getField(((CraftPlayer) p).getHandle().c, "h");
+        ChannelPipeline pipeline = networkManager.n.pipeline(); //connection channel
+        pipeline.addBefore("packet_handler", p.getName(), channelDuplexHandler);
+    }
+
+    @Override
+    public void removePlayer(Player p) {
+        //The connection is private since 1.19.4 :|
+        NetworkManager networkManager = (NetworkManager) getField(((CraftPlayer) p).getHandle().c, "h");
+        Channel channel = networkManager.n; //connection channel
+        channel.eventLoop().submit(() -> channel.pipeline().remove(p.getName()));
+    }
+
+    @Override
+    protected Vector vec3DToVector(Object vec3d) {
+        if (!(vec3d instanceof Vec3D vec3dObj)) return new Vector(0, 0, 0);
+        return new Vector(vec3dObj.c, vec3dObj.d, vec3dObj.e); //x, y, z
+    }
+}

NMS-v1_21_R2/pom.xml

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ This file is part of MapReflectionAPI.
+  ~ Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+  ~
+  ~ This program is free software: you can redistribute it and/or modify
+  ~ it under the terms of the GNU General Public License as published by
+  ~ the Free Software Foundation, either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ This program is distributed in the hope that it will be useful,
+  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~ GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License
+  ~ along with this program.  If not, see <https://www.gnu.org/licenses/>.
+  -->
+
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>MapReflectionAPI</artifactId>
+        <groupId>tech.sbdevelopment</groupId>
+        <version>${revision}</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>MapReflectionAPI-NMS-v1_21_R2</artifactId>
+
+    <properties>
+        <NMSVersion>1.21.3-R0.1-SNAPSHOT</NMSVersion>
+        <jdk.version>21</jdk.version>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <release>${jdk.version}</release>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-deploy-plugin</artifactId>
+                <version>3.1.1</version>
+                <configuration>
+                    <skip>true</skip>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.bukkit</groupId>
+            <artifactId>craftbukkit</artifactId>
+            <version>${NMSVersion}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>tech.sbdevelopment</groupId>
+            <artifactId>MapReflectionAPI-API</artifactId>
+            <version>${revision}</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

NMS-v1_21_R2/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapSender_v1_21_R2.java

@@ -0,0 +1,141 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.network.protocol.game.PacketPlayOutMap;
+import net.minecraft.world.level.saveddata.maps.MapId;
+import net.minecraft.world.level.saveddata.maps.WorldMap;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_21_R2.entity.CraftPlayer;
+import org.bukkit.entity.Player;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * The {@link MapSender_v1_21_R2} sends the Map packets to players.
+ */
+public class MapSender_v1_21_R2 {
+    private static final List<QueuedMap> sendQueue = new ArrayList<>();
+    private static int senderID = -1;
+
+    private MapSender_v1_21_R2() {
+    }
+
+    /**
+     * Add a map to the send queue
+     *
+     * @param id      The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void addToQueue(final int id, final ArrayImage content, final Player player) {
+        QueuedMap toSend = new QueuedMap(id, content, player);
+        if (sendQueue.contains(toSend)) return;
+        sendQueue.add(toSend);
+
+        runSender();
+    }
+
+    /**
+     * Cancels a senderID in the sender queue
+     *
+     * @param s The senderID to cancel
+     */
+    public static void cancelID(int s) {
+        sendQueue.removeIf(queuedMap -> queuedMap.id == s);
+    }
+
+    /**
+     * Run the sender task
+     */
+    private static void runSender() {
+        if (Bukkit.getScheduler().isQueued(senderID) || Bukkit.getScheduler().isCurrentlyRunning(senderID) || sendQueue.isEmpty())
+            return;
+
+        senderID = Bukkit.getScheduler().scheduleSyncRepeatingTask(MapReflectionAPI.getInstance(), () -> {
+            if (sendQueue.isEmpty()) return;
+
+            for (int i = 0; i < Math.min(sendQueue.size(), 10 + 1); i++) {
+                QueuedMap current = sendQueue.get(0);
+                if (current == null) return;
+
+                sendMap(current.id, current.image, current.player);
+
+                if (!sendQueue.isEmpty()) sendQueue.remove(0);
+            }
+        }, 0, 2);
+    }
+
+    /**
+     * Send a map to a player
+     *
+     * @param id0     The ID of the map
+     * @param content The {@link ArrayImage} to view on the map
+     * @param player  The {@link Player} to view for
+     */
+    public static void sendMap(final int id0, final ArrayImage content, final Player player) {
+        if (player == null || !player.isOnline()) {
+            List<QueuedMap> toRemove = new ArrayList<>();
+            for (QueuedMap qMap : sendQueue) {
+                if (qMap == null) continue;
+
+                if (qMap.player == null || !qMap.player.isOnline()) {
+                    toRemove.add(qMap);
+                }
+            }
+            Bukkit.getScheduler().cancelTask(senderID);
+            sendQueue.removeAll(toRemove);
+
+            return;
+        }
+
+        final int id = -id0;
+        Bukkit.getScheduler().runTaskAsynchronously(MapReflectionAPI.getInstance(), () -> {
+            try {
+                WorldMap.c updateData = new WorldMap.c(
+                        content.minX, //X pos
+                        content.minY, //Y pos
+                        content.maxX, //X size (2nd X pos)
+                        content.maxY, //Y size (2nd Y pos)
+                        content.array //Data
+                );
+
+                MapId mapId = new MapId(id);
+
+                PacketPlayOutMap packet = new PacketPlayOutMap(
+                        mapId, //ID
+                        (byte) 0, //Scale
+                        false, //Show icons
+                        new ArrayList<>(), //Icons
+                        updateData
+                );
+
+                ((CraftPlayer) player).getHandle().f.a(packet); //connection send()
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        });
+    }
+
+    record QueuedMap(int id, ArrayImage image, Player player) {
+    }
+}

NMS-v1_21_R2/src/main/java/tech/sbdevelopment/mapreflectionapi/nms/MapWrapper_v1_21_R2.java

@@ -0,0 +1,242 @@
+/*
+ * This file is part of MapReflectionAPI.
+ * Copyright (c) 2022-2023 inventivetalent / SBDevelopment - All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package tech.sbdevelopment.mapreflectionapi.nms;
+
+import net.minecraft.core.component.DataComponents;
+import net.minecraft.network.protocol.game.PacketPlayOutEntityMetadata;
+import net.minecraft.network.protocol.game.PacketPlayOutSetSlot;
+import net.minecraft.network.syncher.DataWatcher;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.decoration.EntityItemFrame;
+import net.minecraft.world.level.saveddata.maps.MapId;
+import org.bukkit.*;
+import org.bukkit.craftbukkit.v1_21_R2.CraftWorld;
+import org.bukkit.craftbukkit.v1_21_R2.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_21_R2.inventory.CraftItemStack;
+import org.bukkit.entity.ItemFrame;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.metadata.FixedMetadataValue;
+import tech.sbdevelopment.mapreflectionapi.MapReflectionAPI;
+import tech.sbdevelopment.mapreflectionapi.api.ArrayImage;
+import tech.sbdevelopment.mapreflectionapi.api.MapController;
+import tech.sbdevelopment.mapreflectionapi.api.MapWrapper;
+import tech.sbdevelopment.mapreflectionapi.api.exceptions.MapLimitExceededException;
+
+import java.util.*;
+
+public class MapWrapper_v1_21_R2 extends MapWrapper {
+    protected MapController controller = new MapController() {
+        private final Map<UUID, Integer> viewers = new HashMap<>();
+
+        @Override
+        public void addViewer(Player player) throws MapLimitExceededException {
+            if (!isViewing(player)) {
+                viewers.put(player.getUniqueId(), MapReflectionAPI.getMapManager().getNextFreeIdFor(player));
+            }
+        }
+
+        @Override
+        public void removeViewer(OfflinePlayer player) {
+            viewers.remove(player.getUniqueId());
+        }
+
+        @Override
+        public void clearViewers() {
+            for (UUID uuid : viewers.keySet()) {
+                viewers.remove(uuid);
+            }
+        }
+
+        @Override
+        public boolean isViewing(OfflinePlayer player) {
+            if (player == null) return false;
+            return viewers.containsKey(player.getUniqueId());
+        }
+
+        @Override
+        public int getMapId(OfflinePlayer player) {
+            if (isViewing(player)) {
+                return viewers.get(player.getUniqueId());
+            }
+            return -1;
+        }
+
+        @Override
+        public void update(ArrayImage content) {
+            MapWrapper duplicate = MapReflectionAPI.getMapManager().getDuplicate(content);
+            if (duplicate != null) {
+                MapWrapper_v1_21_R2.this.content = duplicate.getContent();
+                return;
+            }
+
+            MapWrapper_v1_21_R2.this.content = content;
+
+            for (UUID id : viewers.keySet()) {
+                sendContent(Bukkit.getPlayer(id));
+            }
+        }
+
+        @Override
+        public void sendContent(Player player) {
+            sendContent(player, false);
+        }
+
+        @Override
+        public void sendContent(Player player, boolean withoutQueue) {
+            if (!isViewing(player)) return;
+
+            int id = getMapId(player);
+            if (withoutQueue) {
+                MapSender_v1_21_R2.sendMap(id, MapWrapper_v1_21_R2.this.content, player);
+            } else {
+                MapSender_v1_21_R2.addToQueue(id, MapWrapper_v1_21_R2.this.content, player);
+            }
+        }
+
+        @Override
+        public void cancelSend() {
+            for (int s : viewers.values()) {
+                MapSender_v1_21_R2.cancelID(s);
+            }
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot, boolean force) {
+            if (!isViewing(player)) return;
+
+            if (player.getGameMode() == GameMode.CREATIVE && !force) return;
+
+            if (slot < 9) {
+                slot += 36;
+            } else if (slot > 35 && slot != 45) {
+                slot = 8 - (slot - 36);
+            }
+
+            CraftPlayer craftPlayer = (CraftPlayer) player;
+            int windowId = craftPlayer.getHandle().cc.j; //inventoryMenu containerId
+            int stateId = craftPlayer.getHandle().cc.j(); //inventoryMenu getStateId()
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            net.minecraft.world.item.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+
+            PacketPlayOutSetSlot packet = new PacketPlayOutSetSlot(windowId, stateId, slot, nmsStack);
+            ((CraftPlayer) player).getHandle().f.a(packet);
+        }
+
+        @Override
+        public void showInInventory(Player player, int slot) {
+            showInInventory(player, slot, false);
+        }
+
+        @Override
+        public void showInHand(Player player, boolean force) {
+            if (player.getInventory().getItemInMainHand().getType() != Material.FILLED_MAP && !force) return;
+            showInInventory(player, player.getInventory().getHeldItemSlot(), force);
+        }
+
+        @Override
+        public void showInHand(Player player) {
+            showInHand(player, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame) {
+            showInFrame(player, frame, false);
+        }
+
+        @Override
+        public void showInFrame(Player player, ItemFrame frame, boolean force) {
+            if (frame.getItem().getType() != Material.FILLED_MAP && !force) return;
+            showInFrame(player, frame.getEntityId());
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId) {
+            showInFrame(player, entityId, null);
+        }
+
+        @Override
+        public void showInFrame(Player player, int entityId, String debugInfo) {
+            if (!isViewing(player)) return;
+
+            ItemStack stack = new ItemStack(Material.FILLED_MAP, 1);
+            if (debugInfo != null) {
+                ItemMeta itemMeta = stack.getItemMeta();
+                itemMeta.setDisplayName(debugInfo);
+                stack.setItemMeta(itemMeta);
+            }
+
+            Bukkit.getScheduler().runTask(MapReflectionAPI.getInstance(), () -> {
+                ItemFrame frame = getItemFrameById(player.getWorld(), entityId);
+                if (frame != null) {
+                    frame.removeMetadata("MAP_WRAPPER_REF", MapReflectionAPI.getInstance());
+                    frame.setMetadata("MAP_WRAPPER_REF", new FixedMetadataValue(MapReflectionAPI.getInstance(), MapWrapper_v1_21_R2.this));
+                }
+
+                sendItemFramePacket(player, entityId, stack, getMapId(player));
+            });
+        }
+
+        @Override
+        public void clearFrame(Player player, int entityId) {
+
+        }
+
+        @Override
+        public void clearFrame(Player player, ItemFrame frame) {
+
+        }
+
+        @Override
+        public ItemFrame getItemFrameById(World world, int entityId) {
+            CraftWorld craftWorld = (CraftWorld) world;
+
+            Entity entity = craftWorld.getHandle().a(entityId);
+            if (entity == null) return null;
+
+            if (entity instanceof ItemFrame) return (ItemFrame) entity;
+
+            return null;
+        }
+
+        private void sendItemFramePacket(Player player, int entityId, ItemStack stack, int mapId) {
+            net.minecraft.world.item.ItemStack nmsStack = CraftItemStack.asNMSCopy(stack);
+            MapId mapId1 = new MapId(mapId);
+            nmsStack.b(DataComponents.L, mapId1); //set
+
+            List<DataWatcher.c<?>> list = new ArrayList<>();
+            DataWatcher.c<?> dataWatcherItem = DataWatcher.c.a(EntityItemFrame.e, nmsStack);
+            list.add(dataWatcherItem);
+            PacketPlayOutEntityMetadata packet = new PacketPlayOutEntityMetadata(entityId, list);
+
+            ((CraftPlayer) player).getHandle().f.a(packet);
+        }
+    };
+
+    public MapWrapper_v1_21_R2(ArrayImage image) {
+        super(image);
+    }
+
+    @Override
+    public MapController getController() {
+        return controller;
+    }
+}