1 //
2 // GameScence.hpp
3 // NotesDamo
4 //
5 // Created by apple on 16/10/23.
6 //
7 //
8
9 #ifndef GameScence_hpp
10 #define GameScence_hpp
11
12 #include <stdio.h>
13 #include "cocos2d.h"
14
15 class GameScence : public cocos2d::Layer
16 {
17 private:
18 //创建一个私有的精灵成员变量
19 cocos2d::Sprite * m_spriteGun;
20 public:
21
22
23 static cocos2d::Scene* createScene();//声明创建当前的层
24
25 virtual bool init();//声明初始化层实例函数。
26
27
28
29 bool onTouchBegan(cocos2d::Touch* touch, cocos2d::Event* event);//手势点击事件
30
31
32 CREATE_FUNC(GameScence);//CREATE_FUNC是cocos2d-x中定义的一个宏(作用是：创建一个静态函数"static create()"，该函数可以用来创建层)；
33
34 };
35 #endif /* GameScence_hpp */
1 //
2 // GameScence.cpp
3 // NotesDamo
4 //
5 // Created by apple on 16/10/23.
6 //
7 //
8
9 #include "GameScence.hpp"
10
11 USING_NS_CC;
12
13 Scene* GameScence::createScene()
14 {
15 auto scene = Scene::create();
16
17 auto layer = GameScence::create();
18
19 scene->addChild(layer);
20
21 return scene;
22 }
23
24 GameScence::GameScence()
25 {
26
27 }
28 bool GameScence::init()
29 {
30 //////////////////////////////
31 // 1. super init first
32 // 初始化父类
33 if ( !Layer::init() )
34 {
35 return false;
36 }
37
38
39 m_spriteGun = Sprite::create(StringUtils::format("gun2_0.png"));
40 m_spriteGun->setPosition(240, 30);
41 this ->addChild(m_spriteGun);
42
43 //声明
44 auto listener = EventListenerTouchOneByOne::create();
45 listener->setSwallowTouches(true);
46
47 //注册事件
48 listener->onTouchBegan = CC_CALLBACK_2(GameScence::onTouchBegan, this);
49
50 _eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);
51
52
53 return true;
54 }
55
56
57 bool GameScence::onTouchBegan(cocos2d::Touch* touch, cocos2d::Event* event)
58 {
59
60 touch->getLocation();// 获取当前点击的坐标
61
62 m_spriteGun->cocos2d::Node::setRotation(atan2((touch->getLocation().x-m_spriteGun->getPositionX()),(touch->getLocation().y-m_spriteGun->getPositionY()))*180/3.1415926);//改变弧度 后面加不加90要根据精灵的初始角度是怎样的
63
64
65 return true;
66 }
