今天白白跟大家分享一下cocos2dx添加背景音乐音效的方法。
Cocos2d-x使用SimpleAudioEngine类作为实现跨平台的音乐引擎,首先需要引入头文件。
对于声音文件,我们可以提前加载,这样会提高游戏的执行效率,但却会增加内存消耗,编码时,我们需要根据实际情况决定是否要进行预加载处理。
好了,我们写一个例子先,同样还是新建一个Music项目。
1、引入头文件以及相应的库
#include "cocos2d.h" #include "SimpleAudioEngine.h" #include "CocosDenshionTest.h" using namespace CocosDenshion;
#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 || CC_TARGET_PLATFORM == CC_PLATFORM_LINUX ) #define MUSIC_FILE "background.ogg" #elif (CC_TARGET_PLATFORM == CC_PLATFORM_WP8) #define MUSIC_FILE "background.wav" #else #define MUSIC_FILE "background.mp3" #endif
3、使用音乐以及音效,以及控制音量
我们更改了HelloWorld的退出按钮,可以根据flag的值来做相应的音乐处理。
void HelloWorld::menuCloseCallback(CCObject * pSender) {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 switch(flag) { // 背景音乐部分: case 0: SimpleAudioEngine::sharedEngine()->playBackgroundMusic(MUSIC_FILE,true); //播放 break; case 1: SimpleAudioEngine::sharedEngine()->stopBackgroundMusic(); // 停止播放 break; case 2: SimpleAudioEngine::sharedEngine()->pauseBackgroundMusic(); //暂停播放 break; case 3: SimpleAudioEngine::sharedEngine()->resumeBackgroundMusic(); // 恢复播放 break; case 4: SimpleAudioEngine::sharedEngine()->rewindBackgroundMusic(); //从头重新播放 break; case 5: if (SimpleAudioEngine::sharedEngine()->isBackgroundMusicPlaying()) //判断当前是否播放背景音乐 { CCLOG("background music is playing"); } else { CCLOG("background music is not playing"); } break; // 音效部分 case 6: unsigned int m_nSoundId = SimpleAudioEngine::sharedEngine()->playEffect(EFFECT_FILE); //播放 break; case 7: unsigned int m_nSoundId = SimpleAudioEngine::sharedEngine()->playEffect(EFFECT_FILE,true); break; case 8: SimpleAudioEngine::sharedEngine()->stopEffect(m_nSoundId); //停止播放 break; case 9: SimpleAudioEngine::sharedEngine()->unloadEffect(EFFECT_FILE); //去除音效 break; // add bakcground music volume case 10: SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(SimpleAudioEngine::sharedEngine()->getBackgroundMusicVolume() + 0.1f);//增加音量 break; case 11: SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(SimpleAudioEngine::sharedEngine()->getBackgroundMusicVolume() - 0.1f);//降低音量 break; case 12: SimpleAudioEngine::sharedEngine()->setEffectsVolume(SimpleAudioEngine::sharedEngine()->getEffectsVolume() + 0.1f);//增加音量 break; case 13: SimpleAudioEngine::sharedEngine()->setEffectsVolume(SimpleAudioEngine::sharedEngine()->getEffectsVolume() - 0.1f);//降低音量 break; case 14: SimpleAudioEngine::sharedEngine()->pauseEffect(m_nSoundId);//暂停音效 break; case 15: SimpleAudioEngine::sharedEngine()->resumeEffect(m_nSoundId);//恢复音效 break; case 16: SimpleAudioEngine::sharedEngine()->pauseAllEffects();//暂停所有音效 break; case 17: SimpleAudioEngine::sharedEngine()->resumeAllEffects();//恢复所有音效 break; case 18: SimpleAudioEngine::sharedEngine()->stopAllEffects();//停止所有音效 break; } }
ok,关于音乐的所有函数都在上面了,大家可以根据自己的需要去使用啦。
来源网址:http://www.jb51.cc/article/p-ohhiwyjm-wc.html