public static boolean isFreeFromBricks(int id, int x, int y) {
		for (int i = 0; i < BrickGame.bricks.size(); i++) {
			if (i != id) {
				if (!BrickGame.bricks.get(i).is_free(x, y)) {
					return false;
				}
			}
		}
		return true;
	}