coco2dx 3.0 EventDispatcher事件派发

在看3.0的TestCpp中的示例出现了，EventDispatcher的示例。 图片如下 添加了三张图片，但是每张点击到都会响应触摸事件，并且调整Z坐标。 按照示例的代码： Point origin = Director::getInstance()-getVisibleOrigin();Size size = Director::getInstance()

在看3.0的TestCpp中的示例出现了，EventDispatcher的示例。

图片如下

添加了三张图片，但是每张点击到都会响应触摸事件，并且调整Z坐标。

按照示例的代码：

	Point origin = Director::getInstance()->getVisibleOrigin();
	Size size = Director::getInstance()->getVisibleSize();

	//auto containerForSprite1 = Node::create();
	auto sprite1 = Sprite::create("SpriteTouchEvent/1.png");
	sprite1->setPosition(origin+Point(size.width/2, size.height/2) + Point(-80, 0));
	addChild(sprite1);
	//addChild(containerForSprite1, 10);

	auto sprite2 = Sprite::create("SpriteTouchEvent/2.png");
	sprite2->setPosition(origin+Point(size.width/2, size.height/2));
	addChild(sprite2, 20);

	auto sprite3 = Sprite::create("SpriteTouchEvent/3.png");
	sprite3->setPosition(origin+Point(size.width/2, size.height/2) + Point(80, 0));
	addChild(sprite3, 30);

	// Make sprite1 touchable
	auto listener1 = EventListenerTouchOneByOne::create();
	listener1->setSwallowTouches(true);

	listener1->onTouchBegan = [](Touch* touch, Event* event)
	{
		auto target = static_cast(event->getCurrentTarget());

		Point locationInNode = target->convertToNodeSpace(touch->getLocation());
		Size s = target->getContentSize();
		Rect rect = Rect(0, 0, s.width, s.height);

		if (rect.containsPoint(locationInNode))
		{
			//target->setOpacity(180);
			return true;
		}
		return false;
	};

	listener1->onTouchMoved = [](Touch* touch, Event* event)
	{
// 		auto target = static_cast(event->getCurrentTarget());
// 		target->setPosition(target->getPosition() + touch->getDelta());
	};

	listener1->onTouchEnded = [=](Touch* touch, Event* event)
	{
		auto target = static_cast(event->getCurrentTarget());
		log("sprite onTouchesEnded.. ");
		//target->setOpacity(255);
		if (target == sprite2)
		{
			sprite2->setLocalZOrder(100);
		}
		else
		{
			sprite2->setLocalZOrder(20);
		}
		if(target == sprite1)
		{
			sprite1->setLocalZOrder(100);
		}
		else
		{
			sprite1->setLocalZOrder(10);
		}
		if(target == sprite3)
		{
			sprite3->setLocalZOrder(100);
		}
		else
		{
			sprite3->setLocalZOrder(30);
		}
	};

 	_eventDispatcher->addEventListenerWithSceneGraphPriority(listener1, sprite1);
 	_eventDispatcher->addEventListenerWithSceneGraphPriority(listener1->clone(), sprite2);
	_eventDispatcher->addEventListenerWithSceneGraphPriority(listener1->clone(), sprite3);

代码修改了一点，值为了点击哪张图片，与此同时这个图片就会把Z坐标提升。

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