public void Invalidate(int texture, IFrame frame)
{
if (texture < 0 || texture >= _animationData.SpriteSheets.Count)
{
return;
}
var name = _animationData.SpriteSheets[texture];
_frames.Remove(new Tuple <string, int>(name, frame.GetHashCode()));
}
public BitmapSource this[int texture, IFrame frame]
{
get
{
if (texture < 0 || texture >= _animationData.SpriteSheets.Count || frame == null)
{
return(null);
}
var name = _animationData.SpriteSheets[texture];
var tuple = new Tuple <string, int>(name, frame.GetHashCode());
if (_frames.TryGetValue(tuple, out BitmapSource bitmap))
{
return(bitmap);
}
//if (!frame.IsEmpty)
if (frame.Width > 0 && frame.Height > 0)
{
var textureBitmap = GetTexture(texture);
try
{
bitmap = new CroppedBitmap(textureBitmap,
new System.Windows.Int32Rect()
{
X = frame.X,
Y = frame.Y,
Width = frame.Width,
Height = frame.Height
});
}
catch (ArgumentException)
{
}
}
else
{
bitmap = BitmapSource.Create(1, 1, 96, 96, PixelFormats.Bgr24, null, new byte[3] {
0, 0, 0
}, 3);
}
return(_frames[tuple] = bitmap);
}
}