Tile manipulation via a SpriteSheet (grid that defines the location of the tiles) and TileSet (combination of grid and image data) abstraction
/**
* Get the bitmap for a tile at a given [row,column]
* @param rowId row index (starts at 0)
* @param columnId column index (starts at 0)
*/
public function getTileBitmap(rowId:int,colId:int):Bitmap
{
var bitmapData:BitmapData = new BitmapData(_sheet.tileWidth,_sheet.tileHeight, false, 0xFFFFFF);
bitmapData.copyPixels(_bitmap.bitmapData, _sheet.getTileRectangle(rowId, colId), new Point(0, 0));
return new Bitmap(bitmapData);
}
