[Cocos2D-X ]初窥门径（9）播放音乐/音效

Cocos2D对音乐/音效播放的封装已经很好了，下边是例子：

定义2个文件：

[cpp]
#define MUSIC_FILE        "LOLBgMusic.mp3"  
#define EFFECT_FILE      "Attack.wav" 

#define MUSIC_FILE        "LOLBgMusic.mp3"
#define EFFECT_FILE   "Attack.wav"
在初始化的时候预加载音乐/音效文件：

[cpp]
//预加载  
    CocosDenshion::SimpleAudioEngine::sharedEngine()->preloadBackgroundMusic(MUSIC_FILE); 
    CocosDenshion::SimpleAudioEngine::sharedEngine()->preloadEffect( EFFECT_FILE ); 
    //设置音量  
    CocosDenshion::SimpleAudioEngine::sharedEngine()->setEffectsVolume(0.5); 
    CocosDenshion::SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(0.5); 

//预加载
 CocosDenshion::SimpleAudioEngine::sharedEngine()->preloadBackgroundMusic(MUSIC_FILE);
 CocosDenshion::SimpleAudioEngine::sharedEngine()->preloadEffect( EFFECT_FILE );
 //设置音量
 CocosDenshion::SimpleAudioEngine::sharedEngine()->setEffectsVolume(0.5);
 CocosDenshion::SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(0.5);
播放：

[cpp]
//循环播放背景音乐，  
CocosDenshion::SimpleAudioEngine::sharedEngine()->playBackgroundMusic(MUSIC_FILE,true); 

  //循环播放背景音乐，
  CocosDenshion::SimpleAudioEngine::sharedEngine()->playBackgroundMusic(MUSIC_FILE,true);[cpp] view plaincopyprint?//播放音效  
CocosDenshion::SimpleAudioEngine::sharedEngine()->playEffect(EFFECT_FILE); 

  //播放音效
  CocosDenshion::SimpleAudioEngine::sharedEngine()->playEffect(EFFECT_FILE);
其他相关函数：

[cpp]
// stop background music  
SimpleAudioEngine::sharedEngine()->stopBackgroundMusic(); 
 // pause background music  
 SimpleAudioEngine::sharedEngine()->pauseBackgroundMusic(); 
// resume background music  
SimpleAudioEngine::sharedEngine()->resumeBackgroundMusic(); 
// rewind background music  
SimpleAudioEngine::sharedEngine()->rewindBackgroundMusic(); 
// is background music playing  
SimpleAudioEngine::sharedEngine()->isBackgroundMusicPlaying() 
// add bakcground music volume  
SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(SimpleAudioEngine::sharedEngine()->getBackgroundMusicVolume() + 0.1f); 
 
 
SimpleAudioEngine::sharedEngine()->pauseEffect(m_nSoundId); 
SimpleAudioEngine::sharedEngine()->resumeEffect(m_nSoundId); 
SimpleAudioEngine::sharedEngine()->pauseAllEffects(); 
SimpleAudioEngine::sharedEngine()->resumeAllEffects(); 
SimpleAudioEngine::sharedEngine()->stopAllEffects(); 

// stop background music
SimpleAudioEngine::sharedEngine()->stopBackgroundMusic();
 // pause background music
 SimpleAudioEngine::sharedEngine()->pauseBackgroundMusic();
// resume background music
SimpleAudioEngine::sharedEngine()->resumeBackgroundMusic();
// rewind background music
SimpleAudioEngine::sharedEngine()->rewindBackgroundMusic();
// is background music playing
SimpleAudioEngine::sharedEngine()->isBackgroundMusicPlaying()
// add bakcground music volume
SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(SimpleAudioEngine::sharedEngine()->getBackgroundMusicVolume() + 0.1f);

SimpleAudioEngine::sharedEngine()->pauseEffect(m_nSoundId);
SimpleAudioEngine::sharedEngine()->resumeEffect(m_nSoundId);
SimpleAudioEngine::sharedEngine()->pauseAllEffects();
SimpleAudioEngine::sharedEngine()->resumeAllEffects();
SimpleAudioEngine::sharedEngine()->stopAllEffects();

补充：移动开发 , 其他 ,

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