Flash开发声音问题

Question

我的目标是创建一个 Asteroids 克隆，我有游戏集，可以在 chrism 网络教程上找到。我已经几乎完全设置好游戏，但是，当我添加声音时，程序会报错并出现以下错误。

\src\Main.as(21): col: 3 Error: Access of undefined property soundClip.

\src\Main.as(20): col: 17 Error: Type was not found or was not a compile-time constant: Sound.

代码显示在这里：

package 
{
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.events.KeyboardEvent;
    import flash.events.MouseEvent;

    /**
     * ...
     * @author Chris Moeller
     * http://www.chrismweb.com
     * Tutorial: Creating an Asteroids Game: Part 4
     */

    public class Main extends Sprite 
    {
        [Embed(source = "snd/9mmshot.mp3")]

        private const embeddedSound:Class;
        var soundClip:Sound = new embeddedSound(); // Bullet
        soundClip.play(); // Play the sound
        private var game:Game;
        public function Main():void 
        {
            if (stage) init();
            else addEventListener(Event.ADDED_TO_STAGE, init);
        }

        private function init(e:Event = null):void 
        {
            removeEventListener(Event.ADDED_TO_STAGE, init);
            // entry point

            //create the game object passing in the swf width and height
            game = new Game(stage.stageWidth, stage.stageHeight);

            //add the game bitmap to the screen/ Main.as Sprite to make it visible
            addChild(game.bitmap);

            //Create the main game loop
            addEventListener(Event.ENTER_FRAME, Run);


            //add keylisteners
            stage.addEventListener(KeyboardEvent.KEY_DOWN, game.KeyDown);
            stage.addEventListener(KeyboardEvent.KEY_UP, game.KeyUp);

            stage.addEventListener(MouseEvent.MOUSE_DOWN, game.MouseDown);
            stage.addEventListener(MouseEvent.MOUSE_UP, game.MouseUp);
            stage.addEventListener(MouseEvent.MOUSE_MOVE, game.MoveMouse);
        }

        private function Run(e:Event):void
        {
           game.Update();
           game.Render();            
        }   
    }   
}

我已经尝试研究这个问题但没有成功，我什至检查了一些使用该程序添加声音的教程。

我什至降低了网上找到的音质

但运气不好，我不知道发生了什么。请帮忙！！任何帮助将不胜感激！我使用在线音频转换器来转换音频。

Answer 1

为了避免您的第一个错误 (Error: Type was not found or was not a compile-time constant: Sound.)，您必须将 Sound class 导入到您的 class 中：

// ...

import flash.media.Sound;

对于第二个错误，你应该知道你不能在函数外使用你的soundClip对象，那部分只是声明（和初始化）你的对象，所以你可以这样做，例如：

private function shotFunction(): void 
{
    soundClip.play();
}

希望能帮到你。

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