cocos2d-x 音乐与音效

include "HelloWorldScene.h"  

#include "SimpleAudioEngine.h"  

  

using namespace cocos2d;  

using namespace CocosDenshion;  

  

//根据不同平台使用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_TARGET_PLATFORM == CC_PLATFORM_MARMALADE)  

#define EFFECT_FILE "effect1.raw"  

#else  

#define EFFECT_FILE  "effect1.wav"  

#endif  

  

#if(CC_TARGET_PLATFORM == 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" ,"背景音乐是否正在播放", "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" ,"减少背景音乐音量" ,"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()  

{  

    CCScene *scene = CCScene::create();  

    HelloWorld *layer = HelloWorld::create();  

    scene->addChild(layer);  

    return scene;  

}  

  

bool HelloWorld::init()  

{  

    if ( !CCLayer::init() )  

    {  

        return false;  

    }  

  

    CCMenu* m_pItmeMenu = CCMenu::create();  

      

    CCSize s = 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(), "Arial", 15);  

          

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

          

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

          

        m_pItmeMenu->addChild(pMenuItem, i);  

          

    }  

    m_pItmeMenu->setPosition(CCPointZero);  

      

    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()->setBackgroundMusicVolume(0.5);  

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

      

      

      

    return true;  

}  

  

//回调函数  

void HelloWorld::menuBack(cocos2d::CCObject *pSender)  

{  

    CCMenuItem* pMenuItem = (CCMenuItem*) pSender;  

      

    int nIdx = pMenuItem->getZOrder(); //得到z轴坐标  

      

    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("背景音乐正在播放");  

            }else{  

                CCLOG("背景音乐没有在播放");  

            }  

            break;  

        case 6:  

            //播放音效，并且得到此音效的ID  

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

            CCLOG("音效ID是%d",effectID);  

            break;  

        case 7:  

            //重复播放音效，并且得到此音效的ID  

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

            CCLOG("音效ID是%d", effectID);  

            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(EFFECT_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:  

            //增加音效音量  

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

            break;  

        case 13:  

            //减少音效音量  

            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;  

    }  

}