Custom WorldGuard flag.

src/main/java/com/songoda/ultimatestacker/UltimateStacker.java

@@ -12,6 +12,7 @@ import com.songoda.core.database.MySQLConnector;
 import com.songoda.core.database.SQLiteConnector;
 import com.songoda.core.gui.GuiManager;
 import com.songoda.core.hooks.HologramManager;
+import com.songoda.core.hooks.WorldGuardHook;
 import com.songoda.core.utils.TextUtils;
 import com.songoda.ultimatestacker.commands.CommandConvert;
 import com.songoda.ultimatestacker.commands.CommandGiveSpawner;
@@ -86,6 +87,9 @@ public class UltimateStacker extends SongodaPlugin {
     @Override
     public void onPluginLoad() {
         INSTANCE = this;
+
+        // Register WorldGuard
+        WorldGuardHook.addHook("mob-stacking", true);
     }
     
     @Override

src/main/java/com/songoda/ultimatestacker/tasks/StackingTask.java

@@ -1,5 +1,6 @@
 package com.songoda.ultimatestacker.tasks;
 
+import com.songoda.core.hooks.WorldGuardHook;
 import com.songoda.ultimatestacker.UltimateStacker;
 import com.songoda.ultimatestacker.entity.EntityStack;
 import com.songoda.ultimatestacker.entity.EntityStackManager;
@@ -147,6 +148,10 @@ public class StackingTask extends BukkitRunnable {
             // Make sure the entity has not already been processed.
             if (this.processed.contains(entity.getUniqueId())) continue;
 
+            // Check our WorldGuard flag.
+            if (WorldGuardHook.isEnabled() && !WorldGuardHook.getBooleanFlag(entity.getLocation(), "mob-stacking"))
+                continue;
+
             // Get this entities friendStack.
             EntityStack friendStack = stackManager.getStack(entity);
 
@@ -210,6 +215,10 @@ public class StackingTask extends BukkitRunnable {
         // If our entity is stacked then skip this entity.
         if (isStack) return;
 
+        // Check our WorldGuard flag.
+        if (WorldGuardHook.isEnabled() && !WorldGuardHook.getBooleanFlag(livingEntity.getLocation(), "mob-stacking"))
+            return;
+
         // Remove all stacked entities from our stackable friends.
         stackableFriends.removeIf(stackManager::isStacked);
 

src/main/resources/plugin.yml

@@ -2,6 +2,7 @@ name: UltimateStacker
 description: UltimateStacker
 version: maven-version-number
 softdepend: [HolographicDisplays, WorldGuard, EpicSpawners, mcMMO]
+loadbefore: [WorldGuard]
 main: com.songoda.ultimatestacker.UltimateStacker
 author: songoda
 api-version: 1.13