cocos2d-x学习记录1——图片显示

这篇算是cocos2d-x入门篇，显示一张图片即可。

观察工程中HelloWorld的结构，包含AppDelegate和HelloWorldScene两个类文件，AppDelegate中包含基本的处理，并且创建最初要显示的Scene并运行之。

而HelloWorldScene中则做了相关的初始化工作，在这里，自己仿照HelloWorldScene写个更简单的Scene用于显示。

AppDelegate.cpp内容

#include "AppDelegate.h"
//#include "HelloWorldScene.h"
#include "MyScene.h"

USING_NS_CC;

AppDelegate::AppDelegate() {

}

AppDelegate::~AppDelegate() 
{
}

bool AppDelegate::applicationDidFinishLaunching() {
    // initialize director
    CCDirector* pDirector = CCDirector::sharedDirector();
    CCEGLView* pEGLView = CCEGLView::sharedOpenGLView();

    pDirector->setOpenGLView(pEGLView);
    
    // turn on display FPS
    pDirector->setDisplayStats(true);

    // set FPS. the default value is 1.0/60 if you don't call this
    pDirector->setAnimationInterval(1.0 / 60);

    // create a scene. it's an autorelease object
    //CCScene *pScene = HelloWorld::scene();
    CCScene *pScene = MyScene::createScene();

    // run
    pDirector->runWithScene(pScene);

    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();

    // if you use SimpleAudioEngine, it must be pause
    // SimpleAudioEngine::sharedEngine()->pauseBackgroundMusic();
}

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

    // if you use SimpleAudioEngine, it must resume here
    // SimpleAudioEngine::sharedEngine()->resumeBackgroundMusic();
}

MyScene.h内容

#ifndef MyScene_H_H
#define MyScene_H_H

#include "cocos2d.h"
using namespace cocos2d;

class MyScene : public CCLayer
{
public:
    static CCScene* createScene();
    virtual bool init();
    CREATE_FUNC( MyScene );


private:
};

#endif

MyScene.cpp内容

#include "MyScene.h"

CCScene* MyScene::createScene()
{
    CCScene *scene = CCScene::create();
    MyScene *layer = MyScene::create();
    scene->addChild(layer);
    return scene;
};


bool MyScene::init()
{
    if( !CCLayer::init() ){
        return false;
    }
    CCSize size = CCDirector::sharedDirector()->getWinSize();
    CCSprite *sprite = CCSprite::create("pal4.png");
    sprite->setAnchorPoint( ccp(0.5f, 0.5f) );
    sprite->setPosition( ccp(size.width/2, size.height/2) );
    sprite->setScale(0.5f);
    addChild(sprite);

    return true;
}

运行结果：