Posted By

Ktoso on 02/26/09

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Last Edited at 02/26/09 06:37pm

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AS3 Volume Slider

/ Published in: ActionScript 3

Simple yet effective way to create a horizontal slider to controll the volume of your sound channel

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var maxMove:Number =50;
 
var bounds:Rectangle = new Rectangle(this.volumeSlider.x, this.volumeSlider.y, -maxMove, 0);
var scrolling:Boolean = false;
 
function startScroll (e:Event):void {
   scrolling = true;
   this.volumeSlider.startDrag (false,bounds);
}
 
function stopScroll (e:Event):void {
   scrolling = false;
   this.volumeSlider.stopDrag ();
}
 
function enterHandler (e:Event):void {
   if (scrolling == true) {
      MovieClip(this.root).setVolume(1-((bounds.x-this.volumeSlider.x)/maxMove));
   }
}
 
function setVolume(vol:Number){
   var mod:SoundTransform = new SoundTransform();
   mod.volume = vol;
   mp3Channel.soundTransform = mod; //apply to yout mp3Channel
}
 
addEventListener (Event.ENTER_FRAME, enterHandler);
 
this.volumeSlider.addEventListener (MouseEvent.MOUSE_DOWN, startScroll);
stage.addEventListener (MouseEvent.MOUSE_UP, stopScroll);