forked from: soundtest4

...
@author gaina

by tanigon 22 Apr 2010

• Forked from gaina's soundtest4
• Diff: 2
• Related works: 3

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sound
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/**
 * Copyright tanigon ( http://wonderfl.net/user/tanigon )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/4mPf
 */

// forked from gaina's soundtest4
package  
{
	import flash.display.Sprite;
	import flash.display.StageAlign;
	import flash.display.StageScaleMode;
	import flash.events.Event;
	import flash.geom.ColorTransform;
	import flash.media.Sound;
	import flash.media.SoundChannel;
	import flash.media.SoundLoaderContext;
	import flash.media.SoundMixer;
	import flash.net.URLRequest;
	import flash.utils.ByteArray;
	/**
	 * ...
	 * @author gaina
	 */
	[SWF(width=465,height=465)]
	public class Rectangle extends Sprite
	{
		
		private var rect:Sprite;
		private var spArray:Array = [];
		private var containerArray:Array = [];
		private var snd:Sound;
		private var wSize:Number;
		private var vSize:Number;
		
		public function Rectangle() 
		{
			
			wSize = stage.stageWidth / 32;
			vSize = stage.stageHeight / 16;
			containerArray = rectDraw();
			
			playSound('http://www.takasumi-nagai.com/soundfiles/01.mp3');
			
			addEventListener(Event.ENTER_FRAME, onEnter);
		}
		
		private function playSound(url:String):void
		{
			snd = new Sound();
			var context:SoundLoaderContext = new SoundLoaderContext(0, true);
			var sndReq:URLRequest = new URLRequest(url);
			snd.load(sndReq,context);
			var sndCh:SoundChannel = new SoundChannel();
			sndCh = snd.play(0, 5);
			
		}
		
		private function onEnter(event:Event):void
		{
			var sp:Sprite = new Sprite();
			var byte:ByteArray = new ByteArray();
			SoundMixer.computeSpectrum(byte, false, 0);
			var i:int;
			for (i = 0; i < 512; i++) {
				sp = containerArray[i];
				var rl:Number = byte.readFloat();
				sp.z = rl * 100;
				sp.alpha = 0.2 + rl*2;
				//sp.y += 2;
				//sp.x += 1;
				
				//if (sp.y > stage.stageHeight-vSize) {
				//	sp.y = 0 - vSize;
				//}
				//if (sp.x > stage.stageWidth-wSize) {
				//	sp.x = 0 - wSize;
				//}
			}
			
		}
		
		private function rectDraw():Array
		{

			var i:int, j:int;
			
			for (i = 0; i < 16; i++) {
				for (j = 0; j < 32; j++) {
					rect = new Sprite();
					rect.graphics.clear();
					rect.graphics.lineStyle(0);
					rect.graphics.drawRect(0, 0, wSize, vSize);
					rect.x = j * wSize;
					rect.y = i * vSize;
					rect.z = 0;
					addChild(rect);
					spArray.push(rect);
				}
			}
			
			return spArray;
		}
		
	}

}