在网上看到的是cgrect的方法

    CGRect projectileRect = CGRectMake(projectile.position.x,projectile.position.y,projectile.contentSize.width,projectile.contentSize.height );
    
    
    CGRect targetRect = CGRectMake(target.position.x,target.position.y,target.contentSize.width,target.contentSize.height);
    
    if (CGRectIntersectsRect(projectileRect,targetRect)) {
        碰撞了.
    }

CCRect hookstance=CCRectMake(hook->getPosition().x,hook->getPosition().y,hook->getContentSize().width,hook->getContentSize().height);
 CCRect shistance=CCRectMake(shi->getPosition().x,shi->getPosition().y,shi->getContentSize().width,shi->getContentSize().height);
        if (hookstance.intersectsRect(shistance))
{
碰撞了
}