请问如何将此碰撞方式 回调到cctime?

Cocos2d-x
#1

请问各位高人有什么方式可以将此种碰撞侦测方式回调至cctime呢

void MyContactListener::BeginContact(b2Contact* contact) {
    // We need to copy out the data because the b2Contact passed in
    // is reused.
    CCSprite*spriteA = (CCSprite*)contact->GetFixtureA()->GetBody()->GetUserData();
    CCSprite*spriteB = (CCSprite*)contact->GetFixtureB()->GetBody()->GetUserData();
	//一般方塊碰撞
	if (spriteA.tag == 1&&spriteB.tag == 5)

因为在ContactListener.mm中无法做int的加减
麻烦哪位高人指点 感谢