基础2 win 32 Helloworld

源代码注释：

main.h

#ifndef __MAIN_H__
#define __MAIN_H__

#define WIN32_LEAN_AND_MEAN             // Exclude rarely-used stuff from Windows headers

// Windows Header Files:
#include <windows.h>
#include <tchar.h>

// C RunTime Header Files
#include "CCStdC.h"

#endif    // __WINMAIN_H__

main.cpp

#include "main.h"
#include "AppDelegate.h"
#include "CCEGLView.h"

USING_NS_CC;

// uncomment below line, open debug console
// #define USE_WIN32_CONSOLE

int APIENTRY _tWinMain(HINSTANCE hInstance,
                       HINSTANCE hPrevInstance,
                       LPTSTR    lpCmdLine,
                       int       nCmdShow)
{
    UNREFERENCED_PARAMETER(hPrevInstance);
    UNREFERENCED_PARAMETER(lpCmdLine);

#ifdef USE_WIN32_CONSOLE
    AllocConsole();
    freopen("CONIN$", "r", stdin);
    freopen("CONOUT$", "w", stdout);
    freopen("CONOUT$", "w", stderr);
#endif

    // create the application instance
    AppDelegate app;
    CCEGLView* eglView = CCEGLView::sharedOpenGLView();	//显示的窗口
    eglView->setFrameSize(480, 320);	//窗口大小

    int ret = CCApplication::sharedApplication()->run();

#ifdef USE_WIN32_CONSOLE
    FreeConsole();
#endif

    return ret;
}

AppDelegate.h

#ifndef __APP_DELEGATE_H__
#define __APP_DELEGATE_H__

#include "cocos2d.h"

/**
@brief    The cocos2d Application.

The reason for implement as private inheritance is to hide some interface call by CCDirector.
*/
class  AppDelegate : private cocos2d::CCApplication
{
public:
    AppDelegate();
    virtual ~AppDelegate();

    /**
    @brief    Implement CCDirector and CCScene init code here.
    @return true    Initialize success, app continue.
    @return false   Initialize failed, app terminate.
    */
    virtual bool applicationDidFinishLaunching();	//窗口启动完成(加载游戏，播放音乐)

    /**
    @brief  The function be called when the application enter background
    @param  the pointer of the application
    */
    virtual void applicationDidEnterBackground();	//窗口进入后台(音乐暂停，游戏暂停)

    /**
    @brief  The function be called when the application enter foreground
    @param  the pointer of the application
    */
    virtual void applicationWillEnterForeground();	//窗口恢复(音乐继续，游戏继续)
};

#endif  // __APP_DELEGATE_H__

AppDelegate.cpp

#include "cocos2d.h"
#include "CCEGLView.h"
#include "AppDelegate.h"
#include "HelloWorldScene.h"
#include "SimpleAudioEngine.h"

using namespace CocosDenshion;

USING_NS_CC;

AppDelegate::AppDelegate()
{
}

AppDelegate::~AppDelegate()
{
    SimpleAudioEngine::end();
}

bool AppDelegate::applicationDidFinishLaunching()
{
    // initialize director
    CCDirector *pDirector = CCDirector::sharedDirector();	//初始化导演，他是引擎的老大
    pDirector->setOpenGLView(CCEGLView::sharedOpenGLView());//绑定opengles窗口，可见，我们可以自定义openGLView

    // turn on display FPS
    pDirector->setDisplayStats(true);	//是否显示FPS （ 每秒绘制多少帧，最高60）

    // set FPS. the default value is 1.0/60 if you don't call this
	pDirector->setAnimationInterval(1.0 / 60);	//设置FPS 在cocos2d-x 启动后内部封装了FPS的逻辑，虽然helloWorld图片没变化，但其实一直在重绘

    // create a scene. it's an autorelease object
    CCScene *pScene = HelloWorld::scene();	// 创建一个场景

    // run
    pDirector->runWithScene(pScene);	// 显示这个场景到窗口，必然所有的绘制在场景中定义的
    return true;
}

// This function will be called when the app is inactive. When comes a phone call,it's be invoked too
void AppDelegate::applicationDidEnterBackground()
{
    CCDirector::sharedDirector()->stopAnimation();

    SimpleAudioEngine::sharedEngine()->pauseBackgroundMusic();
}

// this function will be called when the app is active again
void AppDelegate::applicationWillEnterForeground()
{
    CCDirector::sharedDirector()->startAnimation();

    SimpleAudioEngine::sharedEngine()->resumeBackgroundMusic();
}

HelloWorldScene.h

#ifndef __HELLOWORLD_SCENE_H__
#define __HELLOWORLD_SCENE_H__

#include "cocos2d.h"

#include "SimpleAudioEngine.h"

class HelloWorld : public cocos2d::CCLayer
{
public:
    // Here's a difference. Method 'init' in cocos2d-x returns bool, instead of returning 'id' in cocos2d-iphone
    virtual bool init();  

    // there's no 'id' in cpp, so we recommand to return the exactly class pointer
    static cocos2d::CCScene* scene();
    
    // a selector callback
    void menuCloseCallback(CCObject* pSender);

    // implement the "static node()" method manually
    CREATE_FUNC(HelloWorld);
};

#endif  // __HELLOWORLD_SCENE_H__

HelloWorldScene.cpp

#include "HelloWorldScene.h"

using namespace cocos2d;

CCScene* HelloWorld::scene()
{
    CCScene * scene = NULL;
    do 
    {
        // 'scene' is an autorelease object
        scene = CCScene::create();
        CC_BREAK_IF(! scene);	//判定是否成功，失败则退出

        // 'layer' is an autorelease object
        HelloWorld *layer = HelloWorld::create();
        CC_BREAK_IF(! layer);

        // add layer as a child to scene
        scene->addChild(layer);
    } while (0);

    // return the scene
    return scene;
}

// on "init" you need to initialize your instance
bool HelloWorld::init()
{
    bool bRet = false;
    do 
    {
        //////////////////////////////////////////////////////////////////////////
        // super init first
        //////////////////////////////////////////////////////////////////////////

        CC_BREAK_IF(! CCLayer::init());

        //////////////////////////////////////////////////////////////////////////
        // add your codes below...
        //////////////////////////////////////////////////////////////////////////

        // 1. Add a menu item with "X" image, which is clicked to quit the program.

        // Create a "close" menu item with close icon, it's an auto release object.
        CCMenuItemImage *pCloseItem = CCMenuItemImage::create(
            "CloseNormal.png",		//缺省状态
            "CloseSelected.png",	//选中状态
            this,					//当前层
            menu_selector(HelloWorld::menuCloseCallback));//选中后的处理，消息回调方法
        CC_BREAK_IF(! pCloseItem);

        // Place the menu item bottom-right conner.
        pCloseItem->setPosition(ccp(CCDirector::sharedDirector()->getWinSize().width - 20, 20));//(0,0)在左下角

        // Create a menu with the "close" menu item, it's an auto release object.
        CCMenu* pMenu = CCMenu::create(pCloseItem, NULL);
        pMenu->setPosition(CCPointZero);
        CC_BREAK_IF(! pMenu);

        // Add the menu to HelloWorld layer as a child layer.
        this->addChild(pMenu, 1);//第二参数是指放的顺序，值越小放的越底层

        // 2. Add a label shows "Hello World".

        // Create a label and initialize with string "Hello World".
        CCLabelTTF* pLabel = CCLabelTTF::create("Hello World", "Arial", 24);
        CC_BREAK_IF(! pLabel);

        // Get window size and place the label upper. 
        CCSize size = CCDirector::sharedDirector()->getWinSize();
        pLabel->setPosition(ccp(size.width / 2, size.height - 50));

        // Add the label to HelloWorld layer as a child layer.
        this->addChild(pLabel, 1);

        // 3. Add add a splash screen, show the cocos2d splash image.
        CCSprite* pSprite = CCSprite::create("HelloWorld.png");
        CC_BREAK_IF(! pSprite);

        // Place the sprite on the center of the screen
        pSprite->setPosition(ccp(size.width/2, size.height/2));

        // Add the sprite to HelloWorld layer as a child layer.
        this->addChild(pSprite, 0);

        bRet = true;
    } while (0);

    return bRet;
}

void HelloWorld::menuCloseCallback(CCObject* pSender)
{
    // "close" menu item clicked
    CCDirector::sharedDirector()->end();
}