public TileMap(int tileSize) {
		this.tileSize = tileSize;
		numRowsToDraw = MainGame.HEIGHT / tileSize + 2;
		numColsToDraw = MainGame.WIDTH / tileSize + 2;
		tiles = new Tile[256];
		loadTiles();
		tween = 0.07;
		x = 0;
		y = 0;
	}