coco2dx 3.0 EventDispatcher事件派发
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2022-04-01 10:01:43
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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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