Cocos2dx 中的CCCallFunc,CCCallFuncN,CCCallFuncND,CCCallFuncO比较

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@H_403_0@首先看一张图片,表示了CCCallFunc的继承关系:

@H_403_0@

20130910080820631.png

@H_403_0@1、CCCallFunc,回调,调用不带参数的函数

@H_403_0@[cpp]

@H_403_0@CCSequence::actions(CCCallFunc::actionWithTarget(this,callfunc_selector(ExtendActionLayer::onCallBack1)));

@H_403_0@void ExtendActionLayer::onCallBack1()

@H_403_0@{

@H_403_0@ flight->runAction(CCTintBy::actionWithDuration(0.5f,255));

@H_403_0@}

@H_403_0@2、CCCallFuncO,回调,O表示CCObject,CCCallFunco可以带CCObject参数的函数

@H_403_0@[cpp]

@H_403_0@CCSequence::actions(CCCallFuncO::actionWithTarget(this,callfuncO_selector(ExtendActionLayer::onCallBack2),CCInteger::create(2));

@H_403_0@void ExtendActionLayer::onCallBack2(CCObject* data)

@H_403_0@{

@H_403_0@ CCInteger* num = dynamic_cast<CCInteger*>(data);

@H_403_0@ pSender->runAction(CCTintBy::actionWithDuration(num->getValue(),255));

@H_403_0@}

@H_403_0@3、CCCallFuncN,回调,N表示CCNode,表示可以传递Node*类型

@H_403_0@[cpp]

@H_403_0@CCSequence::actions(CCCallFuncN::actionWithTarget(this,callfuncN_selector(ExtendActionLayer::onCallBack3)));

@H_403_0@void ExtendActionLayer::onCallBack3(CCNode* pSender)

@H_403_0@{

@H_403_0@ // 在这个例子里,pSender就是flight,因为是他执行了那个actionF

@H_403_0@ pSender->runAction(CCTintBy::actionWithDuration(1.0f,255));

@H_403_0@}

@H_403_0@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

@H_403_0@[cpp]

@H_403_0@CCSequence::actions(CCCallFuncND::actionWithTarget(this,callfuncND_selector(ExtendActionLayer::onCallBack4),(void *)2));

@H_403_0@void ExtendActionLayer::onCallBack4(CCNode* pSender,void* pData)

@H_403_0@{

@H_403_0@ pSender->runAction(CCTintBy::actionWithDuration(static_cast<float>((int)pData),255));

@H_403_0@}

原文链接:https://www.f2er.com/cocos2dx/342325.html

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