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@autoher : muraken (undefined Inc.)
// @autoher : muraken (undefined Inc.)
package {
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.BitmapDataChannel;
import flash.display.DisplayObject;
import flash.display.Sprite;
import flash.events.Event;
import flash.geom.Matrix;
import flash.geom.Point;
import flash.geom.Rectangle;
import flash.media.Camera;
import flash.media.Video;
[SWF(width="465", height="465", backgroundColor="0xffffff", frameRate="40")]
public class NoiseDisplay extends Sprite {
private var bmp:Bitmap;
private const BMD_WIDTH:int = 240;
private const BMD_HEIGHT:int = 240;
private var baseColor:uint = 0xFFFFFF;
private var baseBmd:BitmapData;
private var editBmd:BitmapData;
private var noiseBmd:BitmapData;
private var sandstormBmd:BitmapData;
private var sorce:DisplayObject;
private var baseMatrix:Matrix;
private var pointArray:Array;
private var randArray1:Array;
private var randArray2:Array;
private var randNum1:Number;
private var bmdUpNum:Number;
private var video:Video;
private var _bmp:Bitmap;
private var camera_width:int;
private var camera_height:int;
public function NoiseDisplay():void {
camera_width = stage.stageWidth;
camera_height = stage.stageHeight;
video = new Video(camera_width, camera_height);
var camera:Camera = Camera.getCamera();
if (camera == null) {
//error
return;
}
video.attachCamera(camera);
sorce = video;
bmp = new Bitmap();
addChild(bmp);
baseBmd = new BitmapData(BMD_WIDTH, BMD_HEIGHT, false, baseColor);
editBmd = baseBmd.clone();
noiseBmd = baseBmd.clone();
sandstormBmd = baseBmd.clone();
baseMatrix = new Matrix();
pointArray = new Array(new Point(0, 0), new Point(0, 0), new Point(0, 0));
randArray1 = new Array(Math.random() + 1, Math.random() + 1, Math.random() + 1);
randArray2 = new Array(0, 0, 0);
randNum1 =0.5;
bmdUpNum = 0;
bmp.bitmapData = noiseBmd;
bmp.smoothing = true;
bmp.visible = false;
stage.addEventListener(Event.RESIZE, _onResize);
_onResize(null);
addEventListener(Event.ENTER_FRAME, upDate);
bmp.visible = true;
sorce.visible = false;
}
private function _onResize(e:Event):void {
var W:Number = stage.stageWidth;
var H:Number = stage.stageHeight;
baseMatrix = new Matrix();
baseMatrix.scale(BMD_WIDTH/W, BMD_HEIGHT/H);
bmp.scaleX = W/BMD_WIDTH;
bmp.scaleY = H/BMD_HEIGHT;
bmp.x = bmp.y = 0;
}
private var _keyCnt:Number = 0;
private function upDate(e:Event):void {
var copy_bmd:BitmapData = baseBmd.clone();
copy_bmd.draw(sorce, baseMatrix);
editBmd = copy_bmd.clone();
for (var i:int = 0; i < 3; i++) {
if (randArray1[i] >= 1){
--randArray1[i];
randArray2[i] = Math.random() / 4 + 0.03;
}
randArray1[i] = randArray1[i] + randArray2[i];
_keyCnt += (48-_keyCnt) / 4;
pointArray[i].x = Math.ceil(Math.sin(randArray1[i] * Math.PI * 2) * randArray2[i] * _keyCnt*2);
pointArray[i].y = 0;
}
var keyNum:Number = 1*(Math.abs(pointArray[0].x) + Math.abs(pointArray[1].x) + Math.abs(pointArray[2].x) + 8) / 4;
i = BMD_HEIGHT;
while (i--){
var offset:Number = Math.sin(i / BMD_HEIGHT * (Math.random() / 8 + 1) * randNum1 * Math.PI * 2)* 0.8 * keyNum * keyNum;
editBmd.copyPixels(copy_bmd, new Rectangle(offset, i, BMD_WIDTH - offset, 1), new Point(0, i));
}
sandstormBmd.noise(int(Math.random() * 1000), 0, 255, 7, false);
var sandNum:Number = 40;
editBmd.merge(sandstormBmd, editBmd.rect, new Point(0,0), sandNum, sandNum, sandNum, 0);
noiseBmd.copyChannel(editBmd, noiseBmd.rect, pointArray[0], BitmapDataChannel.RED, BitmapDataChannel.RED);
noiseBmd.copyChannel(editBmd, noiseBmd.rect, pointArray[1], BitmapDataChannel.GREEN, BitmapDataChannel.GREEN);
noiseBmd.copyChannel(editBmd, noiseBmd.rect, pointArray[2], BitmapDataChannel.BLUE, BitmapDataChannel.BLUE);
}
}
}