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cocos2dx AudioEngine初体验，音效播放结束判断测试

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由于simpleAudioEngine在播放音效时无法获取状态也无法在播放完成后回调，造成音效在按键频繁时发声重叠。改mac版本的库对目前的我来说挑战难度太大。

于是百度了半天，发现3.6版本的cocos2dx有了新的声音播放库AudioEngine。于是体验下，感觉还不错：

直接贴代码：

头文件：

#ifndef __macstudycocos2dx__newAudioEngineTest__

#define __macstudycocos2dx__newAudioEngineTest__

#include <stdio.h>

#include "cocos2d.h"

#include "audio/include/AudioEngine.h"

USING_NS_CC;

using namespace experimental;

class newAudioEngineTest:publicLayer ,publicAudioEngine{

public:

staticcocos2d::Scene* createScene();

virtualbool init();

// a selector callback

void playCallback(cocos2d::Ref* pSender);// 点击按钮后开始播放的回调函数

CREATE_FUNC(newAudioEngineTest);

bool isplaying=false;//标记播放状态

void changer_playingstatus();//播放完成后的回调函数，用来更改播放状态

};

newAudioEngineTest.cpp如下：

#endif /* defined(__macstudycocos2dx__newAudioEngineTest__) */

// newAudioEngineTest.cpp

// macstudycocos2dx

// Created by WangWei on /6/.

#include "newAudioEngineTest.h"

Scene* newAudioEngineTest::createScene()

{

// 'scene' is an autorelease object

auto scene =Scene::create();

// 'layer' is an autorelease object

auto layer =newAudioEngineTest::create();

// add layer as a child to scene

scene->addChild(layer);

// return the scene

return scene;

}

bool newAudioEngineTest::init()

{

//////////////////////////////

// 1. super init first

if ( !Layer::init() )

{

return false;

}

Size visibleSize =Director::getInstance()->getVisibleSize();

Vec2 origin =Director::getInstance()->getVisibleOrigin();

auto menuitem=MenuItemFont::create("play wav", CC_CALLBACK_1(newAudioEngineTest::playCallback,this));

//创建菜单项，点击时播放音效

menuitem->setPosition(Vec2(0,0));

// create menu, it's an autorelease object

auto menu =Menu::create(menuitem,NULL);

menu->setPosition(Vec2(visibleSize.width/2,visibleSize.height/2));

this->addChild(menu,1);

return true;

}

voidnewAudioEngineTest::playCallback(Ref* pSender)

{

if (!isplaying) {

log("wav is not playing!");

isplaying=true;

int audioID=play2d("man1.wav");//播放音效文件

log("audioID =%d",audioID);

setFinishCallback(audioID,CC_CALLBACK_0(newAudioEngineTest::changer_playingstatus,this));

//音效播放完成后修改播放状态，此时会用到audioID

}

else{

log("wav is playing,this click is not response!");

}

voidnewAudioEngineTest::changer_playingstatus(){

isplaying=false;

log("finished,status has been change");

}

以下是log输出：（可以看出audioID是改变的，即使播放同一个音效）

-- ::. macstudycocos2dx iOS[:] cocos2d: surface size: x

wav is not playing!

audioID =0