public void Circle(Vector2 center, double radius, PolygonRenderOptions options)
{
Polygon(center, radius, 0, CIRCLE_VERTEX_COUNT, options);
}
public void Polygon(Vector2 center, double radius, double angle, int vertexCount, PolygonRenderOptions options)
{
double vertexAngle = Math.PI / vertexCount;
if (options.DoFill)
{
GL.Enable(EnableCap.LineSmooth);
GL.LineWidth(options.BorderWidth);
GL.Color4(options.FillColor);
GL.Begin(PrimitiveType.Polygon);
for (int i = 0; i < vertexCount; i++)
{
Vector2 point = Vector2.FromPolar(angle + i * vertexAngle, radius);
GL.Vertex2(ToGL(point));
}
GL.End();
}
GL.LineWidth(options.BorderWidth);
GL.Color4(options.Color);
GL.Begin(PrimitiveType.LineLoop);
for (int i = 0; i < vertexCount; i++)
{
Vector2 point = Vector2.FromPolar(angle + i * vertexAngle, radius);
GL.Vertex2(ToGL(point));
}
GL.End();
GL.Disable(EnableCap.LineSmooth);
}
