private void ExtractFrames(Texture2D spriteSheet, int frameWidth, int frameHeight)
{
List<Texture2D> frames = new List<Texture2D>();
int pixelCountPerFrame = frameWidth * frameHeight;
bool foundEmptyFrame = false;
for (int y = 0; y < spriteSheet.Height; y += frameHeight)
{
if (y + frameHeight <= spriteSheet.Height && !foundEmptyFrame)
{
for (int x = 0; x < spriteSheet.Width; x += frameWidth)
{
if (x + frameWidth <= spriteSheet.Width && !foundEmptyFrame)
{
var frameData = new Color[pixelCountPerFrame];
spriteSheet.GetData(0, new Rectangle(x, y, frameWidth, frameHeight), frameData, 0, pixelCountPerFrame);
if (frameData.All(c => c.A == 0))
{
foundEmptyFrame = true;
}
else
{
Texture2D frame = new Texture2D(GameProvider.GameInstance.GraphicsDevice, frameWidth, frameHeight);
frame.SetData(frameData);
frames.Add(frame);
}
}
}
}
}
_frames = frames.ToArray();
}