public object Visit(Polygon shape, RenderInfo info)
{
Canvas c = info.Canvas;
Vector2 pos = this.Entity.Position;
Vector2[] verts = shape.RotatedVertices(this.Entity.Orientation);
c.Begin();
c.MoveTo(pos + verts[verts.Length - 1]);
for (int i = 0; i < verts.Length; i++)
{
c.LineTo(pos + verts[i]);
}
if (this.fill.A > 0)
{
c.FillColor = this.fill;
c.Fill();
}
if (this.stroke.A > 0)
{
c.StrokeColor = this.stroke;
c.LineWidth = this.thickness;
c.Stroke();
}
#if DEBUG
Matrix rot = Matrix.CreateRotationZ(this.Entity.Orientation);
for (int i = 0; i < shape.normals.Length; i++)
{
c.Begin();
c.MoveTo(pos);
c.LineTo(pos + Vector2.TransformNormal(shape.normals[i], rot) * shape.RoughRadius * 1.5f);
c.StrokeColor = Color.Green;
c.LineWidth = this.thickness;
c.Stroke();
}
for (int i = 0; i < shape.projections.Length; i++)
{
c.Begin();
c.MoveTo(pos + Vector2.TransformNormal(shape.normals[i], rot) * shape.projections[i].Max);
c.LineTo(pos + Vector2.TransformNormal(shape.normals[i], rot) * shape.projections[i].Min);
c.StrokeColor = Color.Blue;
c.LineWidth = this.thickness;
c.Stroke();
}
#endif
return(null);
}
private void DrawVector(Canvas canvas, Vector2 start, Vector2 end, string name)
{
Vector2 unit = end - start;
if (unit.Length() > 0.1f)
{
unit.Normalize();
Vector2 right = unit.RightPerproduct();
canvas.Begin();
canvas.MoveTo(start);
canvas.LineTo(end);
canvas.MoveTo(end - unit * 5 + right * 5);
canvas.LineTo(end);
canvas.LineTo(end - unit * 5 - right * 5);
canvas.LineWidth = this.defaultLineWidth*3;
canvas.StrokeColor = DebugLayer.Shadow;
canvas.Stroke();
canvas.LineWidth = this.defaultLineWidth;
canvas.StrokeColor = GetColor(name);
canvas.Stroke();
}
}
