public bool TestOverlap(int proxyIdA, int proxyIdB)
        {
            b2AABB aabbA = m_tree.GetFatAABB(proxyIdA);
            b2AABB aabbB = m_tree.GetFatAABB(proxyIdB);

            return(b2Collision.b2TestOverlap(aabbA, aabbB));
        }
 public void GetFatAABB(int proxyId, out b2AABB output)
 {
     m_tree.GetFatAABB(proxyId, out output);
 }