public static int GetConstraintIslandId(TypedConstraint lhs)
        {
            int             islandId;
            CollisionObject rcolObj0 = lhs.GetRigidBodyA();
            CollisionObject rcolObj1 = lhs.GetRigidBodyB();

            islandId = rcolObj0.GetIslandTag() >= 0 ? rcolObj0.GetIslandTag() : rcolObj1.GetIslandTag();
            return(islandId);
        }