public static void DrawAnimation(this IDrawing drawing, FramesGroup framesGroup, double x, double y,
float alpha = 1.0f, Drawing.Flip flip = Drawing.Flip.None)
{
var frame = framesGroup.Frames.FirstOrDefault();
if (frame != null)
{
var src = frame.Source;
flip = flip.Add(Drawing.Flip.FlipHorizontal, framesGroup.Reference.FlipX)
.Add(Drawing.Flip.FlipVertical, framesGroup.Reference.FlipY);
var nx = x - frame.Pivot.X;
var ny = y - frame.Pivot.Y;
if (flip.HasFlag(Drawing.Flip.FlipHorizontal))
{
nx += frame.Pivot.X * 2 - src.Width;
}
if (flip.HasFlag(Drawing.Flip.FlipVertical))
{
ny -= frame.Pivot.Y * 2 - src.Height;
}
drawing.DrawSurface(framesGroup.Texture,
new System.Drawing.Rectangle((int)src.Left, (int)src.Top, (int)src.Width, (int)src.Height),
new System.Drawing.Rectangle((int)nx, (int)ny, (int)src.Width, (int)src.Height), alpha, flip);
}
}
public static Drawing.Flip Add(this Drawing.Flip x, Drawing.Flip y, bool reverse)
{
return(reverse ? (Drawing.Flip)((int)x ^ (int)y) : x);
}
public static Drawing.Flip Add(this Drawing.Flip x, Drawing.Flip y)
{
return((Drawing.Flip)((int)x ^ (int)y));
}
