public void ShowNextTileset()
{
int nextIndex = this._tileSetTextures.IndexOf(this._currentTileSetSprite.Texture) + 1;
if (nextIndex >= this._tileSetTextures.Count)
return;
this._currentTileSetSprite = new Sprite(this._tileSetTextures[nextIndex]);
this._selectedTileSprite = new Sprite(this._currentTileSetSprite.Texture, new IntRect((int)_tileSetSelector.Position.X, (int)_tileSetSelector.Position.Y, 32, 32));
}