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//GameScene.h#include "cocos2d.h"USING_NS_CC;class GameScene : public cocos2d::Layer
{public:
static cocos2d::Scene* createScene();
virtual bool init();
virtual bool onTouchBegan(Touch *touch, Event *unused_event);
virtual void onTouchMoved(Touch *touch, Event *unused_event);
CREATE_FUNC(GameScene);
private: //注意不能用auto关键字
Size size;
Sprite *sprite1, *sprite2;
Label *label;
}; |
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//GameScene.cpp// Created by Jacedy on 14-8-11.#include "GameScene.h"USING_NS_CC;cocos2d::Scene* GameScene::createScene(){ auto scene = Scene::create(); //创建一个场景
auto layer = GameScene::create(); //创建一个图层
scene->addChild(layer);
return scene;
}//初始化当前的图层bool GameScene::init()
{ if(!Layer::init()) //初始化父类
return false;
//获取屏幕大小
size = Director::getInstance()->getVisibleSize();
//auto size = Director::getInstance()->getWinSize();
//添加一个图片精灵
sprite1 = Sprite::create("Icon.png");
sprite1->setPosition(Vec2(size.width/2, size.height/2));
this->addChild(sprite1);
sprite2 = Sprite::create("Icon.png");
sprite2->setPosition(Vec2(size.width*0.4, size.height/2));
this->addChild(sprite2);
label = Label::createWithSystemFont("No collision", "Marker Felt", 50);
label->setPosition(Vec2(size.width/2, size.height*0.7));
this->addChild(label);
//创建监听事件对象
auto listener = EventListenerTouchOneByOne::create();
//定义监听事件的回调函数
listener->onTouchBegan = CC_CALLBACK_2(GameScene::onTouchBegan, this);
listener->onTouchMoved = CC_CALLBACK_2(GameScene::onTouchMoved, this);
//在事件分发器中注册
_eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);
return true;
}bool GameScene::onTouchBegan(Touch *touch, Event *unused_event)
{ //获取触屏位置
Point pos = touch->getLocation();
sprite2->setPosition(pos);
log("TouchBegan");
return true;
}void GameScene::onTouchMoved(Touch *touch, Event *unused_event)
{ Point pos = touch->getLocation();
sprite2->setPosition(pos);
//判断两个精灵是否相交
if (sprite2->getBoundingBox().intersectsRect(sprite1->getBoundingBox())) //3.0改变处
label->setString("Collision!");
else
label->setString("No collision");
log("TouchMoved");
} |