cocos2dx 音乐与音效

//根据不同的平台使用的预编译索引不同音频文件

#if   (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)

#define EFFECT_FILE   "effect2.ogg"

#elif (CC_TARCET_PLATFORM == CC_PLATFORM_MARMALADE)

#define EFFECT_FILE   "effect1.raw"

#else

#define EFFECT_FILE   "effect1.wav"

#endif



#if (CC_TARGET_PLATEFOM == CC_PLATFORM_WIN32)

#define  MUSIC_FILE   "music.mid"

#elif (CC_TARGET_PLATFORM == CC_PLATFORM_BLACKBERRY)

#define MUSIC_FILE    "background.ogg"

#else 

#define MUSIC_FILE    "background.mp3"

#endif





std::string items[]={

    "播放背景音乐","停止背景音乐","暂停背景音乐","继续播放背景音乐","后退背景音乐", "背景音乐是否播放", "播放音效","重复播放音效","停止音效播放" ,"释放音效" ,"增加背景音乐音量", "减少背景音效音量","增加音效音量","减少音效音量","暂停音效","继续播放音效","暂停所有音效","继续所有音效","停止所有音效"

};



CCScene* HelloWorld::scene()

{

    // 'scene' is an autorelease object

    CCScene *scene = CCScene::create();

    

    // 'layer' is an autorelease object

    HelloWorld *layer = HelloWorld::create();



    // add layer as a child to scene

    scene->addChild(layer);



    // return the scene

    return scene;

}



// on "init" you need to initialize your instance

bool HelloWorld::init()

{

    //////////////////////////////

    // 1. super init first

    if ( !CCLayer::init() )

    {

        return false;

    }



//

    CCMenu * m_pItmeMenu = CCMenu::create();

    CCSize size = CCDirector::sharedDirector()->getWinSize();

    int m_nTestCount = sizeof(items)/sizeof(items[0]);

    

    for (int i = 0 ; i <m_nTestCount; i++) {

        CCLabelTTF * label = CCLabelTTF::create(items[i].c_str(), "", 20);

        CCMenuItemLabel * pMenuItem = CCMenuItemLabel::create(label , this, menu_selector(HelloWorld::menuBack));

        m_pItmeMenu->addChild(pMenuItem,i);

        pMenuItem->setPosition(CCPointMake(0 , (size.height*0.5-20-(i+1)*15)));

    }

    addChild(m_pItmeMenu,0 ,100);

    

//    预加载音乐和音效

    SimpleAudioEngine::sharedEngine()->preloadBackgroundMusic(CCFileUtils::sharedFileUtils()->fullPathFromRelativePath(MUSIC_FILE));

    SimpleAudioEngine::sharedEngine()->preloadEffect(CCFileUtils::sharedFileUtils()->fullPathFromRelativePath(EFFECT_FILE));

    

//    设置默认音量

    SimpleAudioEngine::sharedEngine()->setEffectsVolume(0.5);

    SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(0.5);

    

    return true;

}



void HelloWorld:: menuBack(CCObject * pSender)

{

    CCMenuItem * pMenuItem = (CCMenuItem * )(pSender);

    int nIdx = pMenuItem->getZOrder();

    switch (nIdx) {

        case 0:

//             播放背景音乐

            SimpleAudioEngine::sharedEngine()->playBackgroundMusic(std::string(CCFileUtils::sharedFileUtils()->fullPathFromRelativePath(MUSIC_FILE)).c_str(), true);

            break;

        case 1:

            //             停止背景音乐

            SimpleAudioEngine::sharedEngine()->stopBackgroundMusic();

            break;

        case 2:

            //              暂停背景音乐

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

            break;

        case 3:

            //             继续播放背景音乐

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

            break;

        case 4:

            //             后退背景音乐

            SimpleAudioEngine::sharedEngine()->rewindBackgroundMusic();

            break;

        case 5:

            //              背景音乐是否正在播放

            if (SimpleAudioEngine::sharedEngine()->isBackgroundMusicPlaying()) {

                CCLOG("正在播放");

            }else

                 CCLOG("没在播放");

            break;

        case 6:

            //             播放音效，并且得到此音效的ID

            SimpleAudioEngine::sharedEngine()->playEffect(std::string(CCFileUtils::sharedFileUtils()->fullPathFromRelativePath(MUSIC_FILE)).c_str());

            break;

        case 7:

            //             重复播放音效

            SimpleAudioEngine::sharedEngine()->playEffect(std::string(CCFileUtils::sharedFileUtils()->fullPathFromRelativePath(MUSIC_FILE)).c_str(), true);

            break;

        case 8:

            //            停止播放音效

            SimpleAudioEngine::sharedEngine()->stopEffect(effectId);

            break;

        case 9:

            //            释放音效

            SimpleAudioEngine::sharedEngine()->unloadEffect (std::string(CCFileUtils::sharedFileUtils()->fullPathFromRelativePath(MUSIC_FILE)).c_str() );

            break;

        case 10:

            //            增加背景音乐音量

            SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(SimpleAudioEngine::sharedEngine()->getBackgroundMusicVolume()+0.1f);

            break;

        case 11:

            //             减少背景音乐音量

            SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(SimpleAudioEngine::sharedEngine()->getBackgroundMusicVolume()-0.1f);

            break;

        case 12:

            //            增加背景音效音量

            SimpleAudioEngine::sharedEngine()->setEffectsVolume(SimpleAudioEngine::sharedEngine()->getEffectsVolume()+0.1f);

            break;

        case 13:

            //            减少背景音效音量

            SimpleAudioEngine::sharedEngine()->setEffectsVolume(SimpleAudioEngine::sharedEngine()->getEffectsVolume()-0.1f);

            break;

        case 14:

            //             暂停音效

            SimpleAudioEngine::sharedEngine()->pauseEffect(effectId);

            break;

        case 15:

            //            继续 播放音效

            SimpleAudioEngine::sharedEngine()->resumeEffect(effectId);

            break;

        case 16:

            //            暂停所有音效

            SimpleAudioEngine::sharedEngine()->pauseAllEffects();

            break;

        case 17:

            //             继续所有音效

            SimpleAudioEngine::sharedEngine()->resumeAllEffects();

            break;

        case 18:

            //            停止所有音效

            SimpleAudioEngine::sharedEngine()->stopAllEffects();

            break;



        default:

            break;

    }



}