void Sparkle()
{
PhysicsObject sparkle = new PhysicsObject(3, 1);
sparkle.Position = Mouse.PositionOnWorld;
//sparkle.IgnoresCollisionResponse = true;
sparkle.IgnoresGravity = true;
sparkle.Angle = RandomGen.NextAngle();
sparkle.Color = RandomGen.NextColor(Color.LightYellow, Color.Yellow);
sparkle.MaximumLifetime = RandomGen.NextTimeSpan(0.1, 2);
Add(sparkle);
double force = RandomGen.NextDouble(100, 200);
sparkle.Hit(Vector.FromLengthAndAngle(force, sparkle.Angle));
}