public override BulletShape DuplicateCollisionShape(BulletWorld pWorld, BulletShape pShape, uint id)
{
CollisionShape shape1 = (pShape as BulletShapeXNA).shape;
// TODO: Turn this from a reference copy to a Value Copy.
BulletShapeXNA shape2 = new BulletShapeXNA(shape1,
BSShapeTypeFromBroadPhaseNativeType(shape1.GetShapeType()));
return shape2;
}