cocos2d-x中用

cocos2d-x中用ccDrawSolidRect和ccDrawCircle绘制了几个图形,但是在设置它们渐隐渐现的时候却实现不了,但是用图片代替就可以实现,请问,在哪里出错了,或者怎么才能实现自己绘制的图形的渐隐渐现。以下为我写的代码:

DrawLineNode *pSptirte=DrawLineNode::create();
pSptirte->runAction(CCFadeIn::create(2));



addChild(pSptirte,1,1024);



CCActionInterval*  action1 = CCFadeIn::create(1.0f);

CCActionInterval*  action1Back = action1->reverse();

pSptirte->runAction( CCSequence::create( action1, action1Back, NULL));
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