Cocos2D-X开发学习笔记-音乐和音效的使用示例

#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[] = { "play background music", "stop background music", "pause background music", "resume background music", "rewind background music", "is background music playing", "play effect", "play effect repeatly", "stop effect", "unload effect", "add background music volume", "sub background music volume", "add effects volume", "sub effects volume", "pause effect", "resume effect", "pause all effects", "resume all effects", "stop all effects" }; CCScene* HelloWorld::scene() { CCScene * scene = NULL; do { // 'scene' is an autorelease object scene = CCScene::create(); CC_BREAK_IF(! scene); // 'layer' is an autorelease object HelloWorld *layer = HelloWorld::create(); CC_BREAK_IF(! layer); // add layer as a child to scene scene->addChild(layer); } while (0); // return the scene return scene; } // on "init" you need to initialize your instance bool HelloWorld::init() { bool bRet = false; do { CC_BREAK_IF(! CCLayer::init()); 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)); m_pItmeMenu->addChild(pMenuItem, i); pMenuItem->setPosition( CCPointMake(0, (s.height*0.5-20- (i + 1) * 15) )); } addChild(m_pItmeMenu,0,100); //预加载音乐和音效 SimpleAudioEngine::sharedEngine()->preloadBackgroundMusic(MUSIC_FILE); SimpleAudioEngine::sharedEngine()->preloadEffect(EFFECT_FILE); //设置默认音量 SimpleAudioEngine::sharedEngine()->setEffectsVolume(0.5); SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(0.5); bRet = true; } while (0); return bRet; } 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(MUSIC_FILE , 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("背景音乐没在播放"); } break; case 6: //播放音效，并且得到此音效的ID effectId = SimpleAudioEngine::sharedEngine()->playEffect(EFFECT_FILE); break; case 7: //重复播放音效 effectId = SimpleAudioEngine::sharedEngine()->playEffect(EFFECT_FILE, true); break; case 8: //停止音效播放 SimpleAudioEngine::sharedEngine()->stopEffect(effectId); break; case 9: //释放音效 SimpleAudioEngine::sharedEngine()->unloadEffect(EFFECT_FILE); break; case 10: //增加背景音乐的音量 SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(SimpleAudioEngine::sharedEngine()->getBackgroundMusicVolume() + 0.1f); break; case 11: //减少背景音乐的音量 SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(SimpleAudioEngine::sharedEngine()->getBackgroundMusicVolume() - 0.1f); break; case 12: //增加音效的音量 SimpleAudioEngine::sharedEngine()->setEffectsVolume(SimpleAudioEngine::sharedEngine()->getEffectsVolume() + 0.1f); break; case 13: //减少音效的音量 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; } }