package { import flash.display.Sprite; import flash.display.BitmapData; import flash.events.Event; [SWF(backgroundColor="#ffffff", frameRate="30")] public class PerlinWave extends Sprite { private var bitmap:BitmapData; private var pos:uint = 0; public function PerlinWave() { stage.align = "TL"; stage.scaleMode = "noScale"; x = stage.stageWidth / 2; y = stage.stageHeight / 2; bitmap = new BitmapData(500, 500, false); bitmap.perlinNoise(80, 80, 3, Math.random() * 100, true, true); addEventListener(Event.ENTER_FRAME, loop); } public function loop(e:Event):void { graphics.clear(); pos++; pos %= 484; for (var i:int = 0; i < 16; i++) { for (var j:int = 0; j < 16; j++) { var color:uint = bitmap.getPixel(pos + i, pos + j); var r:Number = 240000000 / color - 24; graphics.beginFill(color, 0.7); graphics.drawCircle((i-7.5) * 25, (j-7.5) * 25, r); } } } } }