public void updateMapPositionWithoutFire(int x, int y) {
    	if (mapPosition.x == x && mapPosition.y == y)
            return;
    	mapPosition.x = x;
        mapPosition.y = y;
        centerPosition.x = mapPosition.x + PREFERRED_WIDTH / 2;
        centerPosition.y = mapPosition.y + PREFERRED_HEIGHT / 2;
    }