forked from: soundSpectrumElectricity
/**
* Copyright sct73 ( http://wonderfl.net/user/sct73 )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/tphk
*/
// forked from zonnbe's soundSpectrumElectricity
package {
import flash.display.*;
import flash.events.*;
import flash.net.*;
import flash.utils.*;
import flash.geom.*;
import flash.filters.*;
import flash.text.*;
import flash.system.*;
import flash.media.*;
[SWF(width=465,height=465,backgroundColor=0x000000,frameRate=60)]
public class electrixion extends Sprite {
private var STAGE_W:Number = stage.stageWidth;
private var STAGE_H:Number = stage.stageHeight;
private var bmpd:BitmapData = new BitmapData(stage.stageWidth, stage.stageHeight, true,0xFFCC00);
private var bmp:Bitmap = new Bitmap(bmpd);
private var byteArray:ByteArray = new ByteArray();
private var sound:Sound = new Sound();
private var channel:SoundChannel;
private var line:MovieClip = new MovieClip();
private var blurEffect:BlurFilter = new BlurFilter(2,2,1);
private var txt:TextField = new TextField();
private var txtMatrix:Matrix;
private var bmpdMatrix:Matrix = new Matrix();
private var bmpdColor:ColorTransform = new ColorTransform(0.9,0.7,1,0.99);
private var stable:Boolean = false;
public function electrixion() {
addChild(new Bitmap(new BitmapData(stage.stageWidth, stage.stageHeight, false, 0x0)));
bmpd = new BitmapData(STAGE_W,STAGE_H,true,0xFFCC00);
bmp = new Bitmap(bmpd);
var matrix:Matrix = new Matrix();
matrix.createGradientBox(STAGE_W,STAGE_H,0,0,0);
var oval:Sprite = new MovieClip();
oval.graphics.beginGradientFill(GradientType.RADIAL,[0x0,0x0],[1,0],[0,255],matrix);
oval.graphics.drawEllipse(0,0,STAGE_W,STAGE_H);
oval.graphics.endFill();
oval.cacheAsBitmap = bmp.cacheAsBitmap = true;
bmp.mask = oval;
addChild(bmp);
addChild(oval);
line.filters = [new GlowFilter(0xFF0000,0.5,10,10,3,3)];
sound.addEventListener(Event.ID3, id3Handler);
sound.load(new URLRequest("http://level0.kayac.com/images/murai/Digi_GAlessio_-_06_-_darix_togni.mp3"), new SoundLoaderContext(10, true));
channel = sound.play(0, 9999);
stage.addEventListener(MouseEvent.CLICK, change);
stage.addEventListener(Event.ENTER_FRAME, processing);
}
private function processing(e:Event):void {
var i:int;
line.graphics.clear();
SoundMixer.computeSpectrum(byteArray, false, 0);
var detectSound:int = 512;
var w:Number = STAGE_W/detectSound;
var t:Number;
var n:Number;
var byteTotal:Number = 0;
var ratio:Number;
var offset:Number;
t = byteArray.readFloat();
byteTotal += t;
line.graphics.moveTo(0, STAGE_H/2);
for(i=1; i<detectSound; i++) {
t = byteArray.readFloat();
byteTotal += t;
if(i%8==0) {
ratio = (i<detectSound/2)?(i/(detectSound/2)):((detectSound-(i+16))/(detectSound/2));
n = (t * 30 * ratio);
line.graphics.lineStyle(ratio*1.5,0xFFFFFF);
line.graphics.lineTo(i*w,STAGE_H/2+n);
}
}
line.graphics.endFill();
var per:Number = byteTotal/detectSound;
byteTotal*=0.8/detectSound;
if(stable) byteTotal=0.1+byteTotal*0.3/detectSound;
offset = -STAGE_W*(byteTotal)/2
bmpdMatrix.identity();
bmpdMatrix.scale(1+byteTotal,1+byteTotal);
if(stable)
bmpdMatrix.tx = bmpdMatrix.ty = offset;
else {
bmpdMatrix.tx = Math.cos((per+Math.random())*Math.PI*2)*offset;
bmpdMatrix.ty = Math.sin((per+Math.random())*Math.PI*2)*offset;
}
var bmpdClone:BitmapData = bmpd.clone();
bmpd.fillRect(bmpd.rect,0xFFFFFF);
bmpd.draw(bmpdClone,bmpdMatrix,bmpdColor);
bmpd.draw(line);
if(!stable) bmpd.draw(txt, txtMatrix);
bmpd.applyFilter(bmpd, bmpd.rect, new Point, blurEffect);
}
private function id3Handler(e:Event):void {
txt.autoSize = "left"; var tf:TextFormat = new TextFormat(null,18,0xFFFF99); tf.align = "center";
txt.defaultTextFormat = tf; txt.text = "follow us on twitter @LJMUlibrary"
txtMatrix = new Matrix(); txtMatrix.translate((STAGE_W-txt.width)/2, (STAGE_H-txt.height)/2);
}
private function change(e:MouseEvent):void { stable = !stable;}
}
}