EliteMobs 8.7.13

- [New] Added new story-mode dungeon, The Quarry! Currently in early access for Patreon supporters
- [Critical fix] Bugs related to crashes and errors when creating / removing instanced dungeons should now be fixed

Signed-off-by: MagmaGuy <tiagoarnaut@gmail.com>

src/main/java/com/magmaguy/elitemobs/instanced/dungeons/DungeonInstance.java

@@ -234,21 +234,23 @@ public void run() {
                 //The world might get removed before this timer
                 //if (world != null) {
                 //Arrays.stream(world.getLoadedChunks()).forEach(chunk -> chunk.unload(false));
+
+                new EventCaller(new InstancedDungeonRemoveEvent(dungeonInstance));
+                dungeonInstances.remove(dungeonInstance);
+
                 if (!Bukkit.unloadWorld(world, false)) {
                     new WarningMessage("Failed to unload world " + instancedWorldName + " ! This is bad, report this to the developer!");
+                    return;
                 }
                 new BukkitRunnable() {
                     @Override
                     public void run() {
                         WorldInstantiator.recursivelyDelete(instancedWorldFile);
                     }
-                }.runTaskAsynchronously(MetadataHandler.PLUGIN);
+                }.runTaskLaterAsynchronously(MetadataHandler.PLUGIN, 20L * 60 * 2); //wait 2 minutes after unloading world before removing files
                 //}
-                new EventCaller(new InstancedDungeonRemoveEvent(dungeonInstance));
-                dungeonInstances.remove(dungeonInstance);
             }
-        }.runTaskLater(MetadataHandler.PLUGIN, 120);
-
+        }.runTaskLater(MetadataHandler.PLUGIN, 20*30L); //wait 30 seconds before unloading world
     }
 
     private void setDifficulty(String difficultyName) {