cocos2dx3.2helloword分析

概述废话不说 直接看注释 <span style="font-size:24px;color:#ff0000;">AppDelegate.cpp</span> #include "AppDelegate.h"#include "HelloWorldScene.h"//USING_NS_CC == using namespace cocos2dUSING_NS_CC;//using nam

废话不说  直接看注释

<span >AppDelegate.cpp</span>

#include "AppDelegate.h"#include "HelloWorldScene.h"//USING_NS_CC == using namespace cocos2dUSING_NS_CC;//using namespace cocos2d//构造函数AppDelegate::AppDelegate() {}//析构函数AppDelegate::~AppDelegate() {}//程序初始化函数bool AppDelegate::applicationDIDFinishLaunching() {    // initialize director	//获取设备    auto director = Director::getInstance();	//取得OpenGL窗口    auto glvIEw = director->getopenGLVIEw();    if(!glvIEw) {		//如果为空，则创建以" www.sundaboke.com"为窗口标题的窗口。          glvIEw = GLVIEw::create("www.sundaboke.com");//这里我修改过 //刚刚开始是My Game 我修改成www.sundaboke.com  cocos2dx 默认的设置的窗口大小是960,640		//设置设备使用的窗口，此句可以去掉。  		//director->setopenGLVIEw(glvIEw);这一句我个人医保写在下面    }	//设置设备使用的窗口，	director->setopenGLVIEw(glvIEw);	    // turn on display FPS	//打开FPS显示    director->setdisplayStats(true);    // set FPS. the default value is 1.0/60 if you don't call this	//设置每秒60帧    director->setAnimationInterval(1.0 / 60);    // create a scene. it's an autorelease object	//创建HelloWorld场景    auto scene = HelloWorld::createScene();    // run	//运行场景    director->runWithScene(scene);    return true;}// This function will be called when the app is inactive. When comes a phone call,it's be invoked too//当收到电话时，游戏转入后台服务，响应这句话voID AppDelegate::applicationDIDEnterBackground() {    Director::getInstance()->stopAnimation();	//如果使用使用，下面可以用这句代码暂停    // if you use SimpleAudioEngine,it must be pause    // SimpleAudioEngine::getInstance()->pauseBackgroundMusic();}// this function will be called when the app is active again//当电话完成，选择恢复游戏是，响应这一句voID AppDelegate::applicationWillEnterForeground() {    Director::getInstance()->startAnimation();    // if you use SimpleAudioEngine,it must resume here	//如果使用声音，下面可以用这句代码恢复    // SimpleAudioEngine::getInstance()->resumeBackgroundMusic();}

<span ></span><pre name="code" ><span >HelloWorldScene.h</span>

<pre name="code" >#ifndef __HELLOWORLD_SCENE_H__#define __HELLOWORLD_SCENE_H__#include "cocos2d.h"class HelloWorld : public cocos2d::Layer{public:    // there's no 'ID' in cpp,so we recommend returning the class instance pointer	//静态函数创建createScene    cocos2dx3.x以后都是这个    static cocos2d::Scene* createScene();    // Here's a difference. Method 'init' in cocos2d-x returns bool,instead of returning 'ID' in cocos2d-iphone	//初始化    virtual bool init();          // a selector callback	//响应按钮退出程序    voID menuCloseCallback(cocos2d::Ref* pSender);        // implement the "static create()" method manually	// 增加一个静态的create函数来创建实例。     CREATE_FUNC(HelloWorld);};#endif // __HELLOWORLD_SCENE_H__

HelloWorldScene.cpp

#include "HelloWorldScene.h"USING_NS_CC;//使用cocos2dx命名空间 USING_NS_CC == using namespace cocos2d//静态函数创建场景Scene* HelloWorld::createScene(){  // 'scene' is an autorelease object<span >	</span>//创建一个Scene  auto scene = Scene::create();   // 'layer' is an autorelease object<span >	</span>//创建一个 layer  auto layer = HelloWorld::create();  // add layer as a child to scene<span >	</span>// 把 layer 发到 scene 中  scene->addChild(layer);  // return the scene  return scene;}// on "init" you need to initialize your instancebool HelloWorld::init(){  //////////////////////////////  // 1. super init first<span >	</span>//先初始化  if ( !Layer::init() )  {    return false;  }  //获取屏幕分辨率  Size visibleSize = Director::getInstance()->getVisibleSize();<span >	</span><span >	</span>//获取圆点坐标  Vec2 origin = Director::getInstance()->getVisibleOrigin();  /////////////////////////////  // 2. add a menu item with "X" image,which is clicked to quit the program  //  you may modify it.  // add a "close" icon to exit the progress. it's an autorelease object<span >	</span>//创建一个按钮，用2张图表示，默认是第一张图片，按下使用第二张，按下的时候调用HelloWorld::menuCloseCallback方法  auto closeItem = MenuItemImage::create(                     "Closenormal.png","CloseSelected.png",CC_CALLBACK_1(HelloWorld::menuCloseCallback,this));  //设置按钮的位置<span >	</span>closeItem->setposition(Vec2(origin.x + visibleSize.wIDth - closeItem->getContentSize().wIDth/2,origin.y + closeItem->getContentSize().height/2));  // create menu,it's an autorelease object<span >	</span>//由菜单项创建按钮.   auto menu = Menu::create(closeItem,NulL);  menu->setposition(Vec2::ZERO);//设置菜单的位置  this->addChild(menu,1);  /////////////////////////////  // 3. add your codes below...  // add a label shows "Hello World"  // create and initialize a label  //创建一个文本标签，  auto label = LabelTTF::create("www.sundaboke.com","Arial",24);   // position the label on the center of the screen<span >	</span>//设置文本标签的位置  label->setposition(Vec2(origin.x + visibleSize.wIDth/2,origin.y + visibleSize.height - label->getContentSize().height));  // add the label as a child to this layer  this->addChild(label,1);//在屏幕上面显示标签  // add "HelloWorld" splash screen"<span >	</span>//创建一个背景  auto sprite = Sprite::create("HelloWorld.png");  // position the sprite on the center of the screen<span >	</span>//设置背景的位置  sprite->setposition(Vec2(visibleSize.wIDth/2 + origin.x,visibleSize.height/2 + origin.y));  // add the sprite as a child to this layer<span >	</span>//把背景添加到屏幕中  this->addChild(sprite,0);   return true;}//响应按钮按下时的事件处理 voID HelloWorld::menuCloseCallback(Ref* pSender){<span >	</span>//如果是WP8平台，d出消息框提示一下。#if (CC_TARGET_PLATFORM == CC_PLATFORM_WP8) || (CC_TARGET_PLATFORM == CC_PLATFORM_WINRT)<span >	</span>MessageBox("You pressed the close button. windows Store Apps do not implement a close button.","Alert");  return;#endif<span >	</span>//否则，终止程序。  Director::getInstance()->end();<span >	</span>//退出程序#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)  exit(0);#endif}

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