private void Draw(Circle circle)
{
Gl.glLoadIdentity();
var x = circle.Position.X;
var y = circle.Position.Y;
Gl.glTranslatef(x, y, -6f);
Gl.glRotatef(circle.Rotation, 0.0f, 0.0f, 1.0f);
Gl.glTranslatef(-x, -y, 6f);
this.SetGlColor(circle.Color);
Gl.glBegin(Gl.GL_TRIANGLE_FAN);
var radius = circle.Radius * 0.5F;
for (int i = 0; i < 360; i += 5)
{
var rads = Helper.DegreesToRad(i);
Gl.glVertex3f(
(float)(x + System.Math.Sin(rads) * radius), (float)(y + System.Math.Cos(rads) * radius), -6.0f);
}
Gl.glEnd();
this.SetGlColor(circle.RadiusColor);
Gl.glBegin(Gl.GL_LINES);
Gl.glVertex3f(x, y, -6.0f);
Gl.glVertex3f(x + radius, y, -6.0f);
Gl.glEnd();
}
public static Circle Create(
World world, float positionX, float positionY, float radius, float density, float friction)
{
var result = new Circle();
result.Radius = radius;
result.Density = density;
result.Color = System.Drawing.Color.White;
result.RadiusColor = Helper.GetRandomColor();
result.CreatePhysics(world, positionX, positionY, friction);
return result;
}
