1 //
2 // GameScene.hpp
3 // HelloWord
4 //
5 // Created by apple on 2017/1/7.
6 //
7 //
8
9 #ifndef GameScene_hpp
10 #define GameScene_hpp
11
12 #include <stdio.h>
13 #include "cocos2d.h"
14
15 USING_NS_CC;
16
17 class GameScene : public cocos2d::Layer
18 {
19 public:
20 static cocos2d::Scene* createScene();
21
22 virtual bool init();
23
24 //重力感应回调函数
25 void didAccelerate(Acceleration* acc, Event* event);
26
27 CREATE_FUNC(GameScene);
28
29 private:
30 Size size;
31 Sprite *sprite;
32 };
33 #endif /* GameScene_hpp */
1 //
2 // GameScene.cpp
3 // HelloWord
4 //
5 // Created by apple on 2017/1/7.
6 //
7 //
8
9 #include "GameScene.hpp"
10 USING_NS_CC;
11
12 cocos2d::Scene* GameScene::createScene()
13 {
14 auto scene = Scene::create(); //创建一个场景
15 auto layer = GameScene::create(); //创建一个图层
16 scene->addChild(layer);
17 return scene;
18 }
19
20 //初始化当前的图层
21 bool GameScene::init()
22 {
23 if(!Layer::init()) //初始化父类
24 return false;
25
26 //获取屏幕大小
27 size = Director::getInstance()->getVisibleSize();
28 //auto size = Director::getInstance()->getWinSize();
29 //添加一个图片精灵
30 sprite = Sprite::create("CloseNormal.png");
31 sprite->setPosition(Vec2(size.width/2, size.height/2));
32 sprite->setTag(12);
33 this->addChild(sprite);
34
35 //开启重力感应
36 Device::setAccelerometerEnabled(true);
37
38 //创建事件监听对象
39 auto listener = EventListenerAcceleration::create(CC_CALLBACK_2(GameScene::didAccelerate, this));
40
41 //在事件监听器中注册
42 _eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);
43
44 return true;
45 }
46
47 void GameScene::didAccelerate(Acceleration* acc, Event* event)
48 {
49 //使精灵随重力感应移动
50 auto sprite = this->getChildByTag(12); //通过标签获取精灵
51
52 auto pos = sprite->getPosition();
53
54 pos.x += acc->x;
55 pos.y += acc->y;
56 //pos.y += acc->y * 10; //调整精灵移动敏感度
57
58 sprite->setPosition(pos);
59 }
