音乐与音效
新建工程，testMusic
修改HelloWorldScene.h
#ifndef __HELLOWORLD_SCENE_H__
#define __HELLOWORLD_SCENE_H__
#include "cocos2d.h"
class HelloWorld : public cocos2d::CCLayer
{
public:
// Method 'init' in cocos2d-x returns bool, instead of 'id' in cocos2d-iphone (an object pointer)
virtual bool init();
// there's no 'id' in cpp, so we recommend to return the class instance pointer
static cocos2d::CCScene* scene();
// preprocessor macro for "static create()" constructor ( node() deprecated )
CREATE_FUNC(HelloWorld);
//menuitem回调函数
void menuBack(CCObject * pSender);
//用以记录音效ID
int effectId;
};
#endif // __HELLOWORLD_SCENE_H__
修改HelloWorldScene.cpp#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_MARMALADE)
#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","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()
{
// 'scene' is an autorelease object
CCScene *scene = CCScene::create();
// 'layer' is an autorelease object
HelloWorld *layer = HelloWorld::create();
// add layer as a child to scene
scene->addChild(layer);
// return the scene
return scene;
}
// on "init" you need to initialize your instance
bool HelloWorld::init()
{
//////////////////////////////
// 1. super init first
if ( !CCLayer::init() )
{
return false;
}
CCMenu *m_pItemMenu=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_pItemMenu->addChild(pMenuItem,i);
pMenuItem->setPosition(CCPointMake(0, (s.height*0.5-20-(i+1)*15)));
}
addChild(m_pItemMenu,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()->setEffectsVolume(0.5);
SimpleAudioEngine::sharedEngine()->setBackgroundMusicVolume(0.5);
return true;
}
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(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());
break;
case 7:
//重复播放音效
effectId=SimpleAudioEngine::sharedEngine()->playEffect(std::string(CCFileUtils::sharedFileUtils()->fullPathFromRelativePath(EFFECT_FILE)).c_str(),true);
break;
case 8:
//停止音效播放
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;
default:
break;
}
}