Question

我正在制作一款以鸟为头像的Flash游戏。当这只鸟拿起铁鸟皮卡时，会播放钢铁侠的歌曲。但问题是：它不断创建这个音频的新实例。所以我有十万个Ozzy在唱这首歌。但他们彼此之间有一秒钟的延迟。是否有一定的功能只能播放一次这首歌？还是一个小脚本来完成这个？

这是我的剧本：

var IronManMusic:Sound = new IronManSong();
var IronManChannel:SoundChannel = new SoundChannel();

var backgroundMusic:Sound = new BackgroundMusic(); 
var myChannel:SoundChannel = new SoundChannel();
myChannel = backgroundMusic.play();

 if(ironbird==true){
  laatstejump = 9;
  myChannel.stop();
  IronManChannel = IronManMusic.play();
 }

在更新屏幕功能中可以找到ironbird布尔值。我认为这是问题，但我不确定。非常感谢帮助！：）

Answer 1

嗯...看起来应该是：

if(ironbird==true) {
  [...]
  ironbird = false;
}

或者至少你提到的Updatescreen功能应该在一次滴答/迭代后将ironbird设置回false。

编辑：查看您发布的代码作为答案，它更容易：

你正在做

if(birdie.hitTestPoint(ironbirdpickup.x,ironbirdpickup.y,true)){
    ironbird = true;
    ironbirdpickup = Null;
}

if(ironbird==true){
    laatstejump = 9;
    myChannel.stop();
    IronManChannel = IronManMusic.play();
}

并将ironbird变量用于动画和其他内容。移动声音触发器应该只触发一次声音（或者触发hitTestPoint的频率）。

if(birdie.hitTestPoint(ironbirdpickup.x,ironbirdpickup.y,true)){
    ironbird = true;
    ironbirdpickup = Null;
    myChannel.stop();
    IronManChannel = IronManMusic.play();
}

if(ironbird==true){
    laatstejump = 9;
}

您仍应将ironbird重置为false某处，即f.e。当动画完成时。

Answer 2

不知道你对音频和动画部分的确切含义，但这是我的脚本。

//loads keyboard events
import flash.events.KeyboardEvent

var laatstelook:int = 1;
var ironbird:Boolean = false;
var laatstejump = 1;
var movebirdie:int = 2;
var birdfatigue : Boolean = false;
var birdtellery:int = 0;
var birdtelleryvertrager = 0;
var vy:Number=0;
var movement:Boolean=false;
var springen:Boolean=false;
var gv:Number=0.1;
var keyArray:Array = new Array();
var i:Number;
var leftOrrightpressed:Number=0;
var platformraak=false;
var PlatformArray:Array = new Array();

var IronManMusic:Sound = new IronManSong();
var IronManChannel:SoundChannel = new SoundChannel();

var backgroundMusic:Sound = new BackgroundMusic(); 
var myChannel:SoundChannel = new SoundChannel();
myChannel = backgroundMusic.play();

for(i=0;i<222;i++){
    keyArray.push([i,false]);
}
//creating multiple objects from 1 object
for (var a:int = numChildren - 1; a >= 0; a--){
    var child:DisplayObject = getChildAt(a);
    if (child.name == "platform"){
        PlatformArray.push(child);
    }
}

stage.addEventListener(KeyboardEvent.KEY_DOWN,checkKeysDown);
stage.addEventListener(KeyboardEvent.KEY_UP,checkKeysUp);
this.addEventListener(Event.ENTER_FRAME, UpdateScreen);
function UpdateScreen(event:Event):void{

    //No multiple jumps in air
    if(springen==true){

        birdie.gotoAndStop(laatstejump);
        birdtelleryvertrager+=0.2;
        birdie.y-=15;
        birdie.y+=birdtelleryvertrager;
        birdtellery++;

        if(isKeyDown(39)==true){
            birdie.x += 5;
            background.x += 1;
            vcam.x += 5;
            if(birdie.x <= 261.95){
                vcam.x = 275.5;
                background.x -= 1;
            }
                if(ironbird != true){
                    birdie.gotoAndStop(5);
                }else{birdie.gotoAndStop(13);}
        }

        if(isKeyDown(37)==true){
            birdie.x-=5;
            vcam.x -= 5;
            background.x -= 1;
            if(birdie.x <= 261.95){
                vcam.x = 275.5;
                background.x += 1;
            }
            birdie.gotoAndStop(6);
        }

        //bird falls down
        if(birdtellery>25){
            birdfatigue == true;
            if(isKeyDown(39)==true){
                birdie.x-=4;
                vcam.x -= 4;
            }

            if(isKeyDown(37)==true){
                birdie.x += 4;
                vcam.x += 4;
            }

            birdtelleryvertrager+=0.8;
        }

        //bird can jump again (when on platform)
        if(birdtellery>30){
            springen=false;
        }

    }else{
            if(birdfatigue == true){
                birdie.gotoAndStop(7);
            }

            //if right arrow button is pressed
            if(isKeyDown(39)==true){
                birdie.x += movebirdie;

                if(birdie.x >= 261.95){
                    vcam.x += movebirdie;
                    background.x += 0.5;
                }
                if(ironbird != true){
                    birdie.gotoAndStop(2);
                    laatstelook =1;
                }else{birdie.gotoAndStop(11);
                        laatstelook =9;
                    }

                laatstejump =5;
                leftOrrightpressed =1;

            }

            if(isKeyDown(39)==false){
                if (leftOrrightpressed ==1){
                    birdie.gotoAndStop(laatstelook);
                }

            }

            //if left arrow button is pressed
            if(isKeyDown(37)==true){

                birdie.x -= movebirdie;
                background.x -= 0.5;
                vcam.x -= movebirdie;
                if(birdie.x <= 261.95){
                    vcam.x = 275.5;
                    background.x += 0.5;
                }
                if(ironbird != true){
                    birdie.gotoAndStop(3);
                    laatstelook =4;
                }else{birdie.gotoAndStop(12);
                        laatstelook = 10;
                    }

                laatstejump=6;
                leftOrrightpressed =2;
            }

            if(isKeyDown(37)==false){
                if (leftOrrightpressed ==2){
                    birdie.gotoAndStop(laatstelook);
                }
            }

            //if space button is pressed
            if(isKeyDown(32)==true && springen==false){
                springen=true;  
            }

        }

    if(birdie.hitTestPoint(ironbirdpickup.x,ironbirdpickup.y,true)){
        ironbird = true;
        ironbirdpickup = Null;
    }

    if(ironbird==true){
        laatstejump = 9;
        myChannel.stop();
        IronManChannel = IronManMusic.play();
    }



    addEventListener(Event.ENTER_FRAME,ctrl_birdie);


    function ctrl_birdie(e:Event){

        //when bird touches one of the platforms, bird stops falling
        for(var a in PlatformArray){
            if(PlatformArray[a].hitTestPoint(birdie.x,birdie.y,true)){
                birdtelleryvertrager=0;
                birdtellery = 0;
                birdie.y-=1;
            }
        }
    }

    if(birdie.hitTestPoint(platform.platformboundingbox.x,platform.platformboundingbox.y,true)){
        trace("hit");
    }

    //gravity
    vy = 10;
    birdie.y+=vy;
}

//checks if certain key is pressed
function checkKeysDown(event:KeyboardEvent):void{
    keyArray[event.keyCode][1]=true;
}
function checkKeysUp(event:KeyboardEvent):void{
    keyArray[event.keyCode][1]=false;
}
function isKeyDown(X){
    return keyArray[X][1];
}

我是荷兰人，所以有些变数很奇怪。 xD只要问你是不是得到它！

在AS3中有十万个Ozzy

2 个答案: