Finished the code, ready for use

pom.xml

@@ -18,6 +18,10 @@
             <id>dmulloy2-repo</id>
             <url>http://repo.dmulloy2.net/content/groups/public/</url>
         </repository>
+        <repository>
+            <id>md_5-public</id>
+            <url>http://repo.md-5.net/content/groups/public/</url>
+        </repository>
     </repositories>
 
     <dependencies>
@@ -41,10 +45,11 @@
             <systemPath>${project.basedir}/libs/PaperSpigot-1.8.8-R0.1-SNAPSHOT-latest.jar</systemPath>
         </dependency>
         <dependency>
-            <groupId>com.comphenix.protocol</groupId>
-            <artifactId>ProtocolLib</artifactId>
-            <version>3.6.5</version>
-            <scope>provided</scope>
+            <groupId>LibsDisguises</groupId>
+            <artifactId>LibsDisguises</artifactId>
+            <version>9.0.7</version>
+            <scope>system</scope>
+            <systemPath>${project.basedir}/libs/LibsDisguises.jar</systemPath>
         </dependency>
         <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-csv -->
         <dependency>

src/main/java/com/leontg77/villagermobs/Main.java

@@ -28,7 +28,9 @@
 package com.leontg77.villagermobs;
 
 import com.leontg77.villagermobs.commands.VillagerMobsCommand;
-import com.leontg77.villagermobs.protocol.MobDisguiseAdapter;
+import com.leontg77.villagermobs.listeners.MobListener;
+import me.libraryaddict.disguise.disguisetypes.DisguiseType;
+import me.libraryaddict.disguise.disguisetypes.MobDisguise;
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
 import org.bukkit.plugin.java.JavaPlugin;
@@ -43,8 +45,10 @@ public class Main extends JavaPlugin {
 
     @Override
     public void onEnable() {
-        MobDisguiseAdapter disguise = new MobDisguiseAdapter(this);
-        VillagerMobsCommand cmd = new VillagerMobsCommand(this, disguise);
+        MobDisguise mobDisguise = new MobDisguise(DisguiseType.VILLAGER, true, true);
+
+        MobListener listener = new MobListener(mobDisguise);
+        VillagerMobsCommand cmd = new VillagerMobsCommand(this, listener, mobDisguise);
 
         // register command.
         getCommand("villagermobs").setExecutor(cmd);

src/main/java/com/leontg77/villagermobs/commands/VillagerMobsCommand.java

@@ -27,17 +27,23 @@
 
 package com.leontg77.villagermobs.commands;
 
-import com.comphenix.protocol.ProtocolLibrary;
-import com.comphenix.protocol.ProtocolManager;
 import com.google.common.collect.Lists;
 import com.leontg77.villagermobs.Main;
-import com.leontg77.villagermobs.protocol.MobDisguiseAdapter;
+import com.leontg77.villagermobs.listeners.MobListener;
+import me.libraryaddict.disguise.DisguiseAPI;
+import me.libraryaddict.disguise.disguisetypes.Disguise;
+import me.libraryaddict.disguise.disguisetypes.DisguiseType;
+import me.libraryaddict.disguise.disguisetypes.MobDisguise;
+import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
 import org.bukkit.command.TabCompleter;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.event.HandlerList;
 
+import java.util.Arrays;
 import java.util.List;
 import java.util.stream.Collectors;
 
@@ -49,14 +55,16 @@
 public class VillagerMobsCommand implements CommandExecutor, TabCompleter {
     private static final String PERMISSION = "villagermobs.manage";
 
-    private final MobDisguiseAdapter disguise;
+    private final MobListener listener;
     private final Main plugin;
 
-    private final ProtocolManager manager = ProtocolLibrary.getProtocolManager();
+    private final Disguise disguise;
 
-    public VillagerMobsCommand(Main plugin, MobDisguiseAdapter disguise) {
-        this.disguise = disguise;
+    public VillagerMobsCommand(Main plugin, MobListener listener, Disguise disguise) {
         this.plugin = plugin;
+
+        this.listener = listener;
+        this.disguise = disguise;
     }
 
     private boolean enabled = false;
@@ -90,7 +98,14 @@ public boolean onCommand(CommandSender sender, Command cmd, String label, String
             plugin.broadcast(Main.PREFIX + "Villager Mobs has been enabled.");
             enabled = true;
 
-            manager.addPacketListener(disguise);
+            Bukkit.getPluginManager().registerEvents(listener, plugin);
+
+            Bukkit.getWorlds()
+                    .forEach(world -> Arrays.stream(world.getLoadedChunks())
+                    .forEach(chunk -> Arrays.stream(chunk.getEntities())
+                            .filter(entity -> entity instanceof LivingEntity)
+                            .filter(living -> !DisguiseAPI.isDisguised(living) || DisguiseAPI.getDisguise(living).getType() != DisguiseType.VILLAGER)
+                            .forEach(living -> DisguiseAPI.disguiseToAll(living, disguise))));
             return true;
         }
 
@@ -108,7 +123,7 @@ public boolean onCommand(CommandSender sender, Command cmd, String label, String
             plugin.broadcast(Main.PREFIX + "Villager Mobs has been disabled.");
             enabled = false;
 
-            manager.removePacketListener(disguise);
+            HandlerList.unregisterAll(listener);
             return true;
         }
 

src/main/java/com/leontg77/villagermobs/listeners/MobListener.java

@@ -0,0 +1,74 @@
+/*
+ * Project: VillagerMobs
+ * Class: com.leontg77.villagermobs.listener.MobListener
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Leon Vaktskjold <leontg77@gmail.com>.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package com.leontg77.villagermobs.listeners;
+
+import me.libraryaddict.disguise.DisguiseAPI;
+import me.libraryaddict.disguise.disguisetypes.Disguise;
+import me.libraryaddict.disguise.disguisetypes.DisguiseType;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.entity.CreatureSpawnEvent;
+import org.bukkit.event.player.PlayerJoinEvent;
+import org.bukkit.event.world.ChunkLoadEvent;
+
+import java.util.Arrays;
+
+/**
+ * Mob listener class.
+ *
+ * @author LeonTG77
+ */
+public class MobListener implements Listener {
+    private final Disguise disguise;
+
+    public MobListener(Disguise disguise) {
+        this.disguise = disguise;
+    }
+
+    @EventHandler
+    public void on(PlayerJoinEvent event) {
+        Player player = event.getPlayer();
+        DisguiseAPI.disguiseToAll(player, disguise);
+    }
+
+    @EventHandler
+    public void on(CreatureSpawnEvent event) {
+        LivingEntity entity = event.getEntity();
+        DisguiseAPI.disguiseToAll(entity, disguise);
+    }
+
+    @EventHandler
+    public void on(ChunkLoadEvent event) {
+        Arrays.stream(event.getChunk().getEntities())
+                .filter(entity -> entity instanceof LivingEntity)
+                .filter(living -> !DisguiseAPI.isDisguised(living) || DisguiseAPI.getDisguise(living).getType() != DisguiseType.VILLAGER)
+                .forEach(living -> DisguiseAPI.disguiseToAll(living, disguise));
+    }
+}