CCCallFuncN:
1 CCCallFuncN *instant = new CCCallFuncN;
2 instant->initWithTarget(this, callfuncN_selector(ActionCallFunc::callback2));
3 m_grossini->runAction(instant);
4
5 void ActionCallFunc::callback2(CCNode* pSender)
6 {
7 CCSize s = CCDirector::sharedDirector()->getWinSize();
8 label->setPosition(CCPointMake( s.width/4*2,s.height/2));
9 pSender->setPosition( ccp(0, 0) );
10 }
node即指代runAction的node节点;这样当触发callback2的时候即可通过pSender来改变m_grossini的一些状态。
CCCalFuncND:
1 CCCallFuncND *instant2 = new CCCallFuncND;
2 instant2->initWithTarget(this, callfuncND_selector(ActionCallFunc::callback3), (void*)"fgd");
3
4 void ActionCallFunc::callback3(CCNode* pTarget, void* data)
5 {
6 CCSize s = CCDirector::sharedDirector()->getWinSize();
7 CCLabelTTF *label = CCLabelTTF::labelWithString("fgd", "Marker Felt", 16);
8 label->setPosition(CCPointMake( s.width/4*3,s.height/2));
9 addChild(label);
10 }
Data可以将数据指针传进去,不过类型丢了必须强转。
virtual bool initWithTarget (SelectorProtocol *pSelectorTarget, SEL_CallFuncND selector, void *d);现在对SelectorProtocol不太明白,为什么不是node,要是node的话我可以理解成父节点(psender的父节点),但是为啥是SelectorProtocol呢?
SelectorProtocol: CCNode是SelectorProtocol的子类
write by fgd