Fix replay IllegalStateException

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

FightSystem_Core/src/de/steamwar/fightsystem/utils/Hull.java

@@ -201,7 +201,7 @@ public class Hull {
         while(rit.hasNext()) {
             REntity entity = rit.next();
             if(uncoveredSet.contains(new IntVector(new Location(Config.world, entity.getX(), entity.getY(), entity.getZ())))) { //TODO more precise
-                it.remove();
+                rit.remove();
                 entity.hide(false);
             }
         }