cocos2d-x 场景里面常见的函数

第一、virtual bool init();

元素的创建、是否可触摸一类都在这里面可以先设置。

第二、 static cocos2d::CCScene* scene();

添加层到当前场景

第三、触摸事件

virtual void ccTouchesBegan(CCSet *pTouches, CCEvent *pEvent);

virtual void ccTouchesMoved(CCSet *pTouches, CCEvent *pEvent);

virtual void ccTouchesEnded(CCSet *pTouches, CCEvent *pEvent);

void U3BGameScene::ccTouchesBegan( CCSet *pTouches, CCEvent *pEvent )
{
	CCTouch* touch=(CCTouch*)pTouches->anyObject();
	CCPoint touchPoint=touch->getLocation();
	for (int i=0;i<THREE;i++)
	{
		if (lotus[i]->boundingBox().containsPoint(touchPoint))
		{
			touchTag=i;
		}
	}
}

void U3BGameScene::ccTouchesMoved( CCSet *pTouches, CCEvent *pEvent )
{
	CCTouch* touch=(CCTouch*)pTouches->anyObject();
	CCPoint touchPoint=touch->getLocation();
	for (int i=0;i<THREE;i++)
	{
		if (lotus[i]->boundingBox().containsPoint(touchPoint)&&touchTag==i)
		{
			lotus[i]->setPosition(touchPoint);
			label[i]->setPosition(touchPoint);
		}
	}
}

void U3BGameScene::ccTouchesEnded( CCSet *pTouches, CCEvent *pEvent )
{
	CCTouch* touch=(CCTouch*)pTouches->anyObject();
	CCPoint touchPoint=touch->getLocation();
	for (int i=0;i<THREE;i++)
	{
		if (lotus[i]->boundingBox().intersectsRect(CCRect(510,80,150,150)))
		{   
			this->setTouchEnabled(false);
			lotus[i]->setPosition(ccp(595,135));
			label[i]->setPosition(ccp(595,135));
			if (getAnswer(vRand[gameNum])==i)
			{
				rightHandler(i);
			}
			else
				wrongHandler(i);
		}
		else 
		{
			lotus[i]->setPosition(mypoint[posit[i]]);
			label[i]->setPosition(mypoint[posit[i]]);
		}
	}
}

第四点、点击的回调函数

void menuClick(CCObject *pSender);

void U3BGameScene::menuClick(CCObject *pSender)
{
	CCFadeIn* fadeIn = CCFadeIn::create(0.5f);
	CCScaleTo* scaleToBig = CCScaleTo::create(0.5f,1.0f,1.0f);
	CCFiniteTimeAction* spawnToBigCard = CCSpawn::create(fadeIn,scaleToBig,NULL);
	CCMenuItemImage* getSender = (CCMenuItemImage*)pSender;
	switch(getSender->getTag())
	{
	case 9999:{
		CocosDenshion::SimpleAudioEngine::sharedEngine()->stopBackgroundMusic(false);
		CCScene *pScene = U3BScene_start::scene();
		CCDirector::sharedDirector()->replaceScene(CCTransitionFade::create(0.2f,pScene));
		break;
			  }
	}
}

第五、定时函数。每过t时间就执行此函数

void timeHandler(float t);

使用方法为schedule(schedule_selector(U3BSceneGame::timeHandler),3.0f);

void U3BGameScene::timeHandler(float t)
{
	hour--;
	sprintf(game_time,"%d",hour);
	pLabel_time->setString(game_time);
	///<时间结束进入失败界面>
	if (hour<=0)
	{
		//state =false;
		failResult();
	}
}

如果只是延时，则在函数里面判断停止条件然后执行unschedule(schedule_selector(U3BGameScene::timeHandler));即可。