private void getTilesInBombDir(int x, int y, int xdir, int ydir, List<Tile> tiles){
		for(int i = 1; i < 4; ++i){
			int xx = x + (i * xdir), yy = y + (i * ydir);
			if(xx < 0 || xx >= w || yy < 0 || yy >= h) break;
			Tile t = map[xx][yy];
			if(t.type == Tile.CLEAR || t.type == Tile.BREAKABLE) tiles.add(t);
			if(t.type == Tile.SOLID || t.type == Tile.BREAKABLE) break;
		}
	}