public async Task DrawMaskAsync()
{
using (var g = new GraphicsService())
{
var d = new CardDetails(Context.Account, Context.User);
using (Bitmap card = g.DrawCard(d, PaletteType.GammaGreen))
{
using (var factory = new TextFactory())
{
Grid <float> mask = ImageHelper.GetOpacityMask(card);
var pixels = new Grid <Color>(card.Size, new ImmutableColor(0, 0, 0, 255));
// TODO: Make ImmutableColor.Empty values
pixels.SetEachValue((x, y) =>
ImmutableColor.Blend(new ImmutableColor(0, 0, 0, 255), new ImmutableColor(255, 255, 255, 255),
mask.GetValue(x, y)));
using (Bitmap masked = ImageHelper.CreateRgbBitmap(pixels.Values))
await Context.Channel.SendImageAsync(masked, $"../tmp/{Context.User.Id}_card_mask.png");
}
}
}
}