White Noize

Test pixel drawing

by tai2 24 May 2013

• Related works: 2

Tags

algorithm bitmapdata frocessing
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/**
 * Copyright tai2 ( http://wonderfl.net/user/tai2 )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/1Kz5
 */

package {
    import flash.display.Sprite;
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.events.Event;
    
    public class WhiteNoize extends Sprite {
        private var canvas:BitmapData;
        
        public function WhiteNoize() {
            canvas = new BitmapData(stage.stageWidth, stage.stageHeight, false, 0x000000);
            addChild(new Bitmap(canvas)); 
            
            addEventListener(Event.ENTER_FRAME, enterFrame);
        }
        
        private function enterFrame(event:Event) : void {
            canvas.lock();
            var x:int;
            var y:int;
            for (y = 0; y < canvas.height; y++) {
                for (x = 0; x < canvas.width; x++) {
                    var v:int = 255 * Math.random();
                    canvas.setPixel(x, y, (v<<16) | (v<<8) | (v<<0));
                }
            }
            canvas.unlock();            
        }

    }
}