Actionscript从字符串数组加载/调用声音

时间:2010-03-07 04:51:09

标签: actionscript-3 dynamic object audio

我试图通过创建一个包含每个声音的文件路径(或名称)的字符串数组来实例化一堆声音。

var soundByName:Object = {};
var channelByName:Object = {};
var soundName:String;
var channelName:String;
loadSounds();

function loadSounds():void
    {
    var files:Array = new Array("sound1.mp3", "sound2.mp3"); //etc.
    for (var i:int = 0; i < files.length; i++)
        {
        soundName = files[i];
        soundByName.soundName = new Sound();
        soundByName.soundName.addEventListener(Event.COMPLETE, sound_completeHandler);
        soundByName.soundName.addEventListener(IOErrorEvent.IO_ERROR, sound_ioErrorHandler);
        soundByName.soundName.load(new URLRequest(soundName));
        }
    }

function sound_completeHandler(e:Event):void
    {
    channelName = e.currentTarget.name;
    channelByName.channelName = new SoundChannel();
    }

function sound_ioErrorHandler(e:IOErrorEvent):void
    {
    trace("Failed To Load Sound:" + e.currentTarget.name);
    }

然后这样调用:

//Stop a sound
channelByName["sound1.mp3"].stop();

//Play a sound
channelByName["sound2.mp3"] = soundByName["sound2.mp3"].play();

我当前的代码包含来自sound_completeHandler()函数的错误,指出未找到“name”属性。我无法弄清楚如何添加此名称属性,或者如何引用e.currentTarget。

1 个答案:

答案 0 :(得分:2)

您的代码分为3部分:

  • soundByName是一个对象,您正在进行soundByName.soundName=new Sound() =&gt;您正在soundByName中创建名为soundName的字段。 使用soundByName[soundName]=new Sound();表示创建一个名称取自变量coundName的字段。

  • 您正在使用channelByName使用channelByName[channelName]=value;

  • 然后你想关联你名字中的soundChannel,它无法正常工作Sound对象没有这样的字段。使用字典将声音与名称相关联。

    var nameBySound:Dictionary = new Dictionary();
    var soundByName:Object = {};
    var channelByName:Object = {};
    loadSounds();
    
    function loadSounds():void {
      var files:Array = ["sound1.mp3", "sound2.mp3"]; //etc.
      for (var i:int = 0; i < files.length; i++) {
       var soundName:String = files[i];
       var sound:Sound=new Sound(); 
       nameBySound[sound] = soundName;
       soundByName[soundName] = sound;
       sound.addEventListener(Event.COMPLETE, sound_completeHandler);
       sound.addEventListener(IOErrorEvent.IO_ERROR, sound_ioErrorHandler); 
       sound.load(new URLRequest(soundName));
      }
    }                                                                        
    
    function sound_completeHandler(e:Event):void {                           
     var soundName:String=nameBySound[e.currentTarget];                      
     channelByName[soundName] = new SoundChannel();                          
    }                                                                        
    
    function sound_ioErrorHandler(e:IOErrorEvent):void {
     trace("Failed To Load Sound:" + nameBySound[e.currentTarget]);
    }