/*
import flash.display.BlendMode;
blendMode=BlendMode.SCREEN 关闭黑色背景
public function onStageReSize():void 自适应缩放
*/
package
{
import color.ColorChange
import flash.display.Sprite;
import flash.display.Bitmap;
import flash.utils.ByteArray;
import flash.display.BitmapData;
import flash.events.Event;
import flash.media.SoundMixer;
import flash.filters.BlurFilter;
import flash.geom.ColorTransform;
import flash.filters.ColorMatrixFilter;
import flash.geom.Matrix;
import flash.display.BlendMode;
import flash.geom.Point;
import flash.geom.Rectangle;
import flash.events.MouseEvent;
import flash.display.BlendMode;
public class LineToGroups extends Sprite
{
private var sprite:Sprite;
private var bitmap:Bitmap;
private var bitmapData:BitmapData;
private var byteArray:ByteArray;
private var thisW:Number;
private var thisH:Number;
private var singleW:Number;
private var pos:Number = 0;
private var matrix:Matrix;
private var mode:int =1;
private var count:int = 0;
private var numArr:Array = [];
private var fftMode:Boolean = true;
private var colorChange:ColorChange=new ColorChange();
public function LineToGroups(w:Number=720,h:Number=480)
{
thisW = w;
thisH = h;
sprite=new Sprite();
byteArray = new ByteArray();
for (var i:int= 0; i < 256; ++ i)
{
numArr[i] = 0;
}
bitmapData = new BitmapData(thisW,thisH,false,0);
bitmap = addChild(new Bitmap(bitmapData)) as Bitmap;
//blendMode=BlendMode.SCREEN
this.addEventListener(MouseEvent.CLICK,onClickHandler);
addEventListener(Event.ENTER_FRAME,enterframeHandler);
}
//ReSize
public function onStageReSize():void
{
thisW = stage.stageWidth;
thisH = stage.stageHeight;
if (bitmapData)
{
bitmapData.dispose();
}
bitmapData = new BitmapData(thisW,thisH,false,0);
bitmap = addChild(new Bitmap(bitmapData)) as Bitmap;
//blendMode=BlendMode.SCREEN
}
private function onClickHandler(event:MouseEvent):void
{
count = 0;
mode = Math.floor(Math.random() * 5) + 1;
}
private function enterframeHandler(event:Event):void
{
var num:Number;
var i:uint;
var xPos:Number;
var yPos:Number;
if (count %500 == 0)
{
if (++mode > 6)
{
mode = 1;
}
}
SoundMixer.computeSpectrum(byteArray,fftMode,1);
sprite.graphics.clear();
sprite.graphics.lineStyle(1,colorChange.color);
if (mode==1)
{
fftMode = false;
for (i= 0; i <256; i+=4)
{
num = Math.abs(byteArray.readFloat() + 0.1);
numArr[ i ] += (num-numArr[ i ] ) * 0.25;
num = numArr[i];
sprite.graphics.drawCircle( thisW/2 + Math.sin(i * 360 / 256 * Math.PI / 180) * (30+num*thisH/4),thisH/2 + Math.cos(i * 360 / 256 * Math.PI / 180+pos) * (30+num*thisH/4), num * 20 );
}
sprite.graphics.beginFill(colorChange.color, 1 );
for (i = 0; i <256; i+=4)
{
num = Math.abs(byteArray.readFloat() + 0.1);
numArr[ i ] += (num-numArr[ i ] ) * 0.25;
num = numArr[i];
sprite.graphics.drawCircle( thisW/2+ Math.sin(i * 360 /256 * Math.PI / 180) * (40+num*thisH/3),thisH/2 + Math.cos(i * 360 /256 * Math.PI / 180+pos) * (30+num*thisH/3)+thisH/8,num *5 );
}
pos += 0.04;
}
if (mode==2)
{
pos = 0;
fftMode = true;
sprite.graphics.moveTo(-Math.sin(0)*2 + thisW/2 + thisW/8*Math.sin(pos), Math.cos(0) + thisH*0.6 + thisH/8*Math.cos(pos/2));
for (i= 0; i <512; i++)
{
num = byteArray.readFloat() + 0.1;
var a:uint = i;
if (i <256)
{
a += 256;
}
var _size:Number = Math.ceil(thisH* 0.75*0.8*(num+0.5));
xPos= -Math.sin(i/256*Math.PI)*_size*num*2 + thisW/2 + thisW/8*Math.sin(pos);
yPos= Math.cos(a/256*Math.PI)*_size*num/2 + thisH*0.6 + thisH/8*Math.cos(pos/2);
sprite.graphics.lineTo(xPos, yPos);
}
//pos += 0.02;
}
if (mode==3)
{
fftMode = false;
for (i= 0; i <512; i+=2)
{
num = byteArray.readFloat();
var b:uint = i;
if (i >= 256)
{
b -= 256;
}
if (i ==256)
{
sprite.graphics.moveTo(0, thisH/2);
}
xPos= b/512*(thisW*4+2);
yPos = thisH / 4 * - num;
xPos -= 2;
if (i >= 256)
{
yPos *= -1;
}
sprite.graphics.lineTo(xPos, yPos + thisH/2);
}
}
if (mode==4)
{
fftMode = false;
sprite.graphics.moveTo(thisW/2,thisH/2-thisH/2*0.1);
for (i= 0; i <512; i++)
{
num = byteArray.readFloat();
var angleInRadians:Number=i*(360/512)*(Math.PI/180);
xPos = thisW / 2 + thisW / 2 * Math.sin(angleInRadians) * num;
yPos = thisH / 2 - thisH / 2 * Math.cos(angleInRadians) * num;
sprite.graphics.lineTo(xPos, yPos);
}
}
if (mode==5)
{
fftMode = false;
for (i= 0; i <512; i+=4)
{
num = byteArray.readFloat();
var c:uint = i;
if (i >=512)
{
c -= 256;
}
xPos = c / 256 * (thisW + 10);
yPos = - num * thisH / 4 + Math.cos(pos) * (thisH / 8);
if (i >=256)
{
yPos *= -1;
}
if (i ==256)
{
sprite.graphics.moveTo(0, yPos + thisH/2);
}
sprite.graphics.lineTo(xPos, yPos + thisH/2);
}
pos += 0.01;
}
if (mode==6)
{
fftMode = true;
sprite.graphics.moveTo(thisW/4,thisH/2);
singleW = (thisW - thisW / 2) / 256;
for (i= 0; i < 256; i++)
{
num = byteArray.readFloat();
sprite.graphics.lineTo(thisW/4+ i*singleW,thisH/2 + num *thisH/3);
}
sprite.graphics.moveTo(thisW/4,thisH/2);
for (i = 0; i < 256; i++)
{
num = byteArray.readFloat();
sprite.graphics.lineTo(thisW/4 + i*singleW,thisH/2 - num *thisH/3);
}
}
sprite.graphics.endFill();
matrix=new Matrix();
matrix.translate( - thisW/2, - thisH/2);
matrix.scale(1.1,1.1);
matrix.translate(thisW/2,thisH/2);
bitmapData.lock();
bitmapData.draw(bitmapData,matrix,new ColorTransform(0.96,0.96,0.96));
//bitmapData.draw(bitmapData,matrix,new ColorTransform(0.96,0.96,0.96),BlendMode.NORMAL);
//bitmapData.applyFilter(bitmapData,bitmapData.rect,new Point(),new ColorMatrixFilter([1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,.998,0]));
bitmapData.applyFilter(bitmapData,bitmapData.rect,new Point(0,0),new BlurFilter(4,4,1));
bitmapData.draw(sprite);
bitmapData.unlock();
count++;
}
}
}
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