【Cocos2D-X 游戏引擎】初窥门径(4)Touch 事件:移动精灵

在.h中声明:

	virtual void registerWithTouchDispatcher(void);  
	virtual bool ccTouchBegan(CCTouch *pTouch, CCEvent *pEvent);  
	virtual void ccTouchMoved(CCTouch *pTouch, CCEvent *pEvent);  
	virtual void ccTouchEnded(CCTouch *pTouch, CCEvent *pEvent);  
	virtual void ccTouchCancelled(CCTouch *pTouch, CCEvent *pEvent);  

并在.cpp的init()中设置:

this->setTouchEnabled(true);

下面就是Touch函数的实现:

void DragScene::registerWithTouchDispatcher(void){  
	CCDirector::sharedDirector()->getTouchDispatcher()->addTargetedDelegate(this, 0, true);  
}  

bool DragScene::ccTouchBegan(CCTouch *pTouch, CCEvent *pEvent)
{  
	mBullet->setPosition(ccp(pTouch->getLocation().x , pTouch->getLocation().y));
	return true;  
}  

void DragScene::ccTouchMoved(CCTouch *pTouch, CCEvent *pEvent)
{  
	mBullet->setPosition(ccp(pTouch->getLocation().x , pTouch->getLocation().y));
}  

void DragScene::ccTouchEnded(CCTouch *pTouch, CCEvent *pEvent)  
{  

}  

void DragScene::ccTouchCancelled(CCTouch *pTouch, CCEvent *pEvent)  
{  

}  

在触摸的时候让精灵跟随触摸移动,也就是在ccTouchMoved中更新精灵的位置。


效果图:





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