//

 //  MainScene.hpp

 //  helloworld

 //

 //  Created by apple on 16/9/19.

 //

 //

 #ifndef MainScene_hpp

 #define MainScene_hpp

 #include <stdio.h>

 #include "cocos2d.h"

 USING_NS_CC;

 using namespace cocos2d;

 //定义一个场景类

 class MainScene : public cocos2d::Layer{

 private:

     // 成员变量(私有的)

     Size size;//注意不能用auto关键字

     Sprite *sprite1, *sprite2;//定义两个成员变量的精灵(注意不能用auto关键字

     Label *label;//全局变量Label->显示碰撞与未碰撞(注意不能用auto关键字)

 public:

     virtual bool init(); // 虚函数，返回值为布尔类型，没有函数

     static cocos2d::Scene* createScene();//static是一个类方法返回场景

     //声明点击手势

     virtual bool onTouchBegan(Touch *touch, Event *unused_event);

     //声明拖动手势

     virtual void onTouchMoved(Touch *touch, Event *unused_event);

     CREATE_FUNC(MainScene);

 };

 #endif /* MainScene_hpp */

 //

 //  MainScene.cpp

 //  helloworld

 //

 //  Created by apple on 16/9/19.

 //

 //

 #include "MainScene.hpp"

 cocos2d::Scene * MainScene::createScene()

 {

      auto scene = Scene::create();

 //    CCScene * scene = CCScene::create();// 创建场景

     //创建层

     MainScene *layer = MainScene::create();

     scene->addChild(layer);

     return scene;

 }

 bool MainScene::init(){

     if (!Layer::init()) {

         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("CloseNormal.png");

     sprite1->setPosition(Vec2(size.width/, size.height/));

     this->addChild(sprite1);

     sprite2 = Sprite::create("CloseNormal.png");

     sprite2->setPosition(Vec2(size.width*0.4, size.height/));

     this->addChild(sprite2);

     label = Label::createWithSystemFont("No collision", "Marker Felt", );

     label->setPosition(Vec2(size.width/, size.height*0.7));

     this->addChild(label);//直接把Label显示在屏幕上

     //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(MainScene::onTouchBegan, this);

     listener->onTouchMoved = CC_CALLBACK_2(MainScene::onTouchMoved, this);

     //在事件分发器中注册

     _eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);

     return true;

 }

 //点击移动精事件回调方法

 bool MainScene::onTouchBegan(Touch *touch, Event *unused_event)

 {

     //获取触屏位置（坐标）

     Point pos = touch->getLocation();

     sprite2->setPosition(pos);//把点击屏幕的触摸点（坐标）给赋值给精灵2

     log("TouchBegan");

     return true;

 }

 //拖动手势执行事件方法

 void MainScene::onTouchMoved(Touch *touch, Event *unused_event)

 {

     //获取当前拖动手势的坐标与位置

     Point pos = touch->getLocation();

     sprite2->setPosition(pos);//让精灵跟着拖动点移动

     //判断两个精灵是否相交

     if (sprite2->getBoundingBox().intersectsRect(sprite1->getBoundingBox())){    //3.0改变处

         label->setString("Collision!");//改变屏幕上Label的文字

     }else{

         label->setString("No collision");//改变屏幕上Label的文字

         log("TouchMoved");

     }

 }