soundtest
license : 詳細ActionScript3.0 2 by 大重美幸 p196-197
にZを加えたら楽しかった。
package
{
import flash.display.Sprite;
import flash.events.Event;
import flash.media.Sound;
import flash.media.SoundChannel;
import flash.media.SoundLoaderContext;
import flash.media.SoundMixer;
import flash.net.URLRequest;
import flash.utils.ByteArray;
import flash.geom.ColorTransform;
import flash.system.LoaderContext;
/**
* license : 詳細ActionScript3.0 2 by 大重美幸 p196-197
* にZを加えたら楽しかった。
*/
[SWF(width=800,height=800,backgroundColor=0x000000)]
public class soundGrid extends Sprite
{
private var leftRightSpList:Array;
private var snd:Sound;
function soundGrid()
{
leftRightSpList = makeLeftRightSpList();
playSound("http://www.takasumi-nagai.com/soundfiles/01.mp3");
}
private function playSound(sndUrl:String):void
{
snd = new Sound();
var context:SoundLoaderContext = new SoundLoaderContext(10,true);
var req:URLRequest = new URLRequest(sndUrl);
snd.load(req,context);
var sndChannel:SoundChannel;
sndChannel = snd.play(0, int.MAX_VALUE);
addEventListener(Event.ENTER_FRAME, onEnterFrame);
}
private function onEnterFrame(event:Event):void {
var sp:Sprite;
var bytes:ByteArray = new ByteArray();
SoundMixer.computeSpectrum(bytes, false, 0);
var i:uint, j:uint;
for (i = 0; i < 2; i++)
{
var spList:Array = leftRightSpList[i];
for (j = 0; j < 256; j++)
{
sp = spList[j];
var rf:Number = bytes.readFloat();
var scale:Number = Math.max(0.05, 1 + rf * 40);
sp.scaleX = sp.scaleY = scale;
sp.z = scale * 10;
var colorInfo:ColorTransform = sp.transform.colorTransform;
colorInfo.color = 0xFFFFFF * scale;
sp.transform.colorTransform = colorInfo;
}
}
}
private function makeLeftRightSpList():Array
{
var spLRList:Array = new Array();
var grid_size:Number = 20;
var circle_r:uint = 2;
var offsetX:uint;
var offsetY:uint;
var n:uint;
var i:uint, j:uint;
for (n = 0; n < 2; n++)
{
var spList:Array = new Array();
offsetX = 80 + (20 + grid_size * 16) * n;
offsetY = 100;
for (i = 0; i < 16; i++)
{
for (j = 0; j < 16; j++)
{
var sp:Sprite = new Sprite();
sp.graphics.beginFill(0xFF0000);
sp.graphics.drawCircle(0, 0, circle_r);
sp.graphics.endFill();
sp.x = offsetX + grid_size * i;
sp.y = offsetY + grid_size * j;
addChild(sp);
spList.push(sp);
}
}
spLRList.push(spList);
}
return spLRList;
}
}
}