public void Draw(XnaRenderer renderer)
{
//renderer.DrawPoint(ToWorld(_centerOfMass), 1f, Color.Red, 1f);
renderer.Transformation = Matrix.CreateTranslation(-_centerOfMass.X, -_centerOfMass.Y, 0) * Matrix.CreateRotationZ(Angle) * Matrix.CreateTranslation(_centerOfMass.X, _centerOfMass.Y, 0) * Matrix.CreateTranslation(Position.X, Position.Y, 0);
renderer.DrawPoint(_centerOfMass, 1f, Color.Red, 1f);
for (int i = 0; i < _points.Length; i++)
{
renderer.DrawPoint(_points[i], 1f, Color.White, 1f);
//draw edge
Vector2 start = _points[i];
Vector2 end = _points[(i + 1) % _points.Length];
renderer.DrawLine(start, end, 0.1f, Color.White, 1f);
//renderer.DrawArrow((start + end) * 0.5f, (start + end) * 0.5f + _normals[i] * 1f, 0.1f, Color.DarkGray, 0.6f);
}
renderer.Transformation = Matrix.Identity;
renderer.DrawArrow(CenterOfMass, CenterOfMass + Velocity * 50f, 0.2f, Color.Blue);
}