public IMask CreateMask(IGameFactory factory, string path, bool transparentMeansMasked = false, Color?debugDrawColor = default(Color?), string saveMaskToFile = null, string id = null)
{
FastBitmap debugMaskFast = null;
if (saveMaskToFile != null || debugDrawColor != null)
{
debugMaskFast = new FastBitmap(Width, Height);
}
bool[][] mask = new bool[Width][];
Color drawColor = debugDrawColor != null ? debugDrawColor.Value : Colors.Black;
using (FastBitmap bitmapData = new FastBitmap(_cgImage))
{
for (int x = 0; x < Width; x++)
{
for (int y = 0; y < Height; y++)
{
bool masked = bitmapData.IsOpaque(x, y);
if (transparentMeansMasked)
{
masked = !masked;
}
if (mask[x] == null)
{
mask[x] = new bool[Height];
}
mask[x][Height - y - 1] = masked;
if (debugMaskFast != null)
{
debugMaskFast.SetPixel(x, y, masked ? drawColor : Colors.Transparent);
}
}
}
}
UIImage debugMask = null;
if (debugMaskFast != null)
{
debugMask = debugMaskFast.GetImage();
debugMaskFast.Dispose();
}
//Save the duplicate
if (saveMaskToFile != null)
{
saveToFile(debugMask, saveMaskToFile);
}
IObject debugDraw = null;
if (debugDrawColor != null)
{
debugDraw = factory.Object.GetObject(id ?? path ?? "Mask Drawable");
debugDraw.Image = factory.Graphics.LoadImage(new IOSBitmap(debugMask, _graphics), null, path);
debugDraw.Anchor = new AGS.API.PointF();
}
else if (debugMask != null)
{
debugMask.Dispose();
}
return(new AGSMask(mask, debugDraw));
}