Fix entity destruction

Signed-off-by: Lixfel <agga-games@gmx.de>

FightSystem_Core/src/de/steamwar/fightsystem/fight/FightWorld.java

@@ -65,7 +65,7 @@ public class FightWorld extends StateDependent {
 
     public static void resetWorld(){
         for(Entity entity : world.getEntities()){
-            if(entity.getType() != EntityType.PLAYER){
+            if(entity.getType() != EntityType.PLAYER && (!Config.ArenaLeaveable || Config.ArenaRegion.inRegion(entity.getLocation()))) {
                 entity.remove();
             }
         }