cocos2d box2d 隨機目標產生成刚体

Cocos2d-x
#1

我有一个精灵类，负责随机产生精灵，然后让这些精灵以不同速度通过屏幕 如何使用构造函数使這些精灵生成刚体？？

#2

cocosPosition = myActor->getPosition();

cocosPosition = CCDirector::sharedDirector()->convertToGL(cocosPosition);

oint box2dPosition = ccp(cocosPosition.x/LHSettings::sharedInstance()->lhPtmRatio(),cocosPosition.y/LHSettings::sharedInstance()->lhPtmRatio());

b->SetTransform(b2Vec2(box2dPosition.x,box2dPosition.y),0.1);