cocos2dx2.2添加音乐音效以及设置音量

    1.    #if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)  
    2.        #define EFFECT_FILE        "effect2.ogg"  
    3.    #elif( CC_TARGET_PLATFORM == CC_PLATFORM_MARMALADE)  
    4.        #define EFFECT_FILE        "effect1.raw"  
    5.    #else  
    6.        #define EFFECT_FILE        "effect1.wav"  
    7.    #endif   
    8.      
    9.    #if (CC_TARGET_PLATFORM == CC_PLATFORM_WIN32)  
    10.        #define MUSIC_FILE        "music.mid"  
    11.    #elif (CC_TARGET_PLATFORM == CC_PLATFORM_BLACKBERRY || CC_TARGET_PLATFORM == CC_PLATFORM_LINUX )  
    12.        #define MUSIC_FILE        "background.ogg"  
    13.    #elif (CC_TARGET_PLATFORM == CC_PLATFORM_WP8)  
    14.        #define MUSIC_FILE        "background.wav"  
    15.    #else  
    16.        #define MUSIC_FILE        "background.mp3"  
    17.    #endif  

1.    void HelloWorld::menuCloseCallback(CCObject * pSender)  
    2.    {int flag = 0；    //我这里直接定义一个flag，大家可根据游戏项目的需要传入flag的值  
    3.        switch(flag)  
    4.        {  
    5.        // 背景音乐部分:  
    6.        case 0:  
    7.            SimpleAudioEngine::sharedEngine()->playBackgroundMusic(MUSIC_FILE, true);   //播放 
    8.            break;  
    9.        case 1:  
    10.            SimpleAudioEngine::sharedEngine()->stopBackgroundMusic();  // 停止播放  
    11.            break;  
    12.        case 2:  
    13.            SimpleAudioEngine::sharedEngine()->pauseBackgroundMusic();   //暂停播放  
    14.            break;  
    15.        case 3:  
    16.            SimpleAudioEngine::sharedEngine()->resumeBackgroundMusic();   // 恢复播放  
    17.            break;  
    18.        case 4:  
    19.            SimpleAudioEngine::sharedEngine()->rewindBackgroundMusic();   //从头重新播放  
    20.            break;  
    21.        case 5:  
    22.            if (SimpleAudioEngine::sharedEngine()->isBackgroundMusicPlaying())    //判断当前是否播放背景音乐  
    23.            {  
    24.                CCLOG("background music is playing");  
    25.            }  
    26.            else  
    27.            {  
    28.                CCLOG("background music is not playing");  
    29.            }  
    30.            break;  
    31.        // 音效部分  
    32.        case 6:  
    33.           unsigned int m_nSoundId = SimpleAudioEngine::sharedEngine()->playEffect(EFFECT_FILE);   //播放  
    34.            break;  
    35.        case 7:  
    36.            unsigned int m_nSoundId = SimpleAudioEngine::sharedEngine()->playEffect(EFFECT_FILE, true);  
    37.            break;  
    38.        case 8:  
    39.            SimpleAudioEngine::sharedEngine()->stopEffect(m_nSoundId);   //停止播放  
    40.            break;  
    41.        case 9:  
    42.            SimpleAudioEngine::sharedEngine()->unloadEffect(EFFECT_FILE);  //去除音效  
    43.            break;  
    44.            // add bakcground music volume  
    45.        case 10:  
    46.            SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(SimpleAudioEngine::sharedEngine()->getBackgroundMusicVolume() + 0.1f);//增加音量  
    47.            break;  
    48.        case 11:  
    49.            SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(SimpleAudioEngine::sharedEngine()->getBackgroundMusicVolume() - 0.1f);//降低音量  
    50.            break;  
    51.        case 12:  
    52.            SimpleAudioEngine::sharedEngine()->setEffectsVolume(SimpleAudioEngine::sharedEngine()->getEffectsVolume() + 0.1f);//增加音量  
    53.            break;  
    54.        case 13:  
    55.            SimpleAudioEngine::sharedEngine()->setEffectsVolume(SimpleAudioEngine::sharedEngine()->getEffectsVolume() - 0.1f);//降低音量  
    56.            break;  
    57.        case 14:  
    58.            SimpleAudioEngine::sharedEngine()->pauseEffect(m_nSoundId);//暂停音效  
    59.            break;  
    60.        case 15:  
    61.            SimpleAudioEngine::sharedEngine()->resumeEffect(m_nSoundId);//恢复音效  
    62.            break;  
    63.        case 16:  
    64.            SimpleAudioEngine::sharedEngine()->pauseAllEffects();//暂停所有音效  
    65.            break;  
    66.        case 17:  
    67.            SimpleAudioEngine::sharedEngine()->resumeAllEffects();//恢复所有音效  
    68.            break;  
    69.        case 18:  
    70.            SimpleAudioEngine::sharedEngine()->stopAllEffects();//停止所有音效  
    71.            break;  
    72.        }  
    73.          
    74.    }