Cocos2dx 中的CCCallFunc,CCCallFuncN,CCCallFuncND,CCCallFuncO
首先看一张图片,表示了CCCallFunc的继承关系: 1、CCCallFunc,回调,调用不带参数的函数: [cpp] CCSequence::actions(CCCallFunc::actionWithTarget(this,callfunc_selector(ExtendActionLayer::onCallBack1))); void ExtendActionLayer::onCallBack1() { flight->runAction(CCTintBy::actionWithDuration(0.5f,255)); } 2、CCCallFuncO,回调,O表示CCObject,CCCallFunco可以带CCObject参数的函数 [cpp] CCSequence::actions(CCCallFuncO::actionWithTarget(this,callfuncO_selector(ExtendActionLayer::onCallBack2),CCInteger::create(2)); void ExtendActionLayer::onCallBack2(CCObject* data) { CCInteger* num = dynamic_cast<CCInteger*>(data); pSender->runAction(CCTintBy::actionWithDuration(num->getValue(),255)); } 3、CCCallFuncN,回调,N表示CCNode,表示可以传递Node*类型 [cpp] CCSequence::actions(CCCallFuncN::actionWithTarget(this,callfuncN_selector(ExtendActionLayer::onCallBack3))); void ExtendActionLayer::onCallBack3(CCNode* pSender) { // 在这个例子里,pSender就是flight,因为是他执行了那个actionF pSender->runAction(CCTintBy::actionWithDuration(1.0f,255)); } 4、CCCallFuncND,回调,ND表示CCNode和Data,可以传递对象本身和一个void*类型参数,void*表示可以是任意类型的参数 [cpp] CCSequence::actions(CCCallFuncND::actionWithTarget(this,callfuncND_selector(ExtendActionLayer::onCallBack4),(void *)2)); void ExtendActionLayer::onCallBack4(CCNode* pSender,void* pData) { pSender->runAction(CCTintBy::actionWithDuration(static_cast<float>((int)pData),255)); } (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |