void draw_wings(SKCanvas canvas, List <SKPoint> wing, bool upper_wing = false)
{
List <SKBlendMode> modes = new List <SKBlendMode>()
{
SKBlendMode.ColorBurn, SKBlendMode.Multiply, SKBlendMode.Difference, SKBlendMode.Darken
};
SKBlendMode style = RandomUtility.GetRandomElement <SKBlendMode>(modes);
//canvas.ResetMatrix();
int canvasCacheTag = canvas.Save();
if (upper_wing)
{
canvas.Scale(1, -1);
}
paint.BlendMode = style;
//draw_curve_filled( wing )
SkiaSharpUtility.DrawSplineCurve(canvas, paint, wing, true, SKPathFillType.Winding);
paint.BlendMode = SKBlendMode.Multiply;// BLEND
canvas.Scale(-1, 1);
paint.BlendMode = style;
// draw_curve_filled(wing)
SkiaSharpUtility.DrawSplineCurve(canvas, paint, wing, true, SKPathFillType.Winding);
paint.BlendMode = SKBlendMode.Multiply;// BLEND
//canvas.ResetMatrix();
canvas.RestoreToCount(canvasCacheTag);
}
void draw_curve_filled(SKCanvas canvas, List <SKPoint> points)
{
if (points == null)
{
return;
}
SkiaSharpUtility.DrawSplineCurve(canvas, paint, points, false, SKPathFillType.Winding);
}
void draw_16_points(SKCanvas canvas, List <SKPoint> points)
{
if (points == null || points.Count == 0)
{
return;
}
//var blendModeCache = paint.BlendMode;
//paint.BlendMode = SKBlendMode.DstOver;
SkiaSharpUtility.DrawSplineCurve(canvas, paint, points, true, SKPathFillType.EvenOdd);
//SkiaSharpUtility.DrawPoints( canvas, paint, points );
//paint.BlendMode = blendModeCache;
}
void drawAntennae(SKCanvas canvas, List <SKPoint> body, List <SKPoint> antennae)
{
List <SKPoint> points = new List <SKPoint>();
points.Add(body[2]);
//points.Add( body[2] );
for (int i = 0; i < antennae.Count; i++)
{
var a = antennae[i];
//curveTightness(curve_tightness[i])
//curveVertex(x, y)
points.Add(a);
}
SkiaSharpUtility.DrawSplineCurve(canvas, paint, points, false, SKPathFillType.EvenOdd);
}
