/* ------------------------------------------------------------------- * やっぱり怖いですよね。 * * [inspired by] * 某Pad * http://wonderfl.net/code/63331dcac2f468ad4da986160bc91d39945e6211 * ------------------------------------------------------------------- */ package { import flash.display.Bitmap; import flash.display.Sprite; import flash.events.Event; public class Main extends Sprite { // 真ん中が透過な画像なら多分何でもいけます private static var IMAGE_URL:String = "http://assets.wonderfl.net/images/related_images/a/a2/a235/a23539b3cebd3c86ed745a2ae2afae32bfa32bfc"; private static var IMAGE_NUM:int = 10; // 入れ子にする画像数 private static var IMAGE_OFFSET_X:Number = 90; // X座標位置の補正値 private static var IMAGE_OFFSET_Y:Number = 330; // Y座標位置の補正値 private static var SCALE_DEFAULT:Number = 1.5; // 初期拡大率 private static var SCALE_MULTIPLIER:Number = 0.45; // 拡大率の係数 private static var SCALE_LIMIT:Number = 6; // 拡大率の限界値 private static var SCALE_INCREASE:Number = 1.01; // 拡大率の増加量 private var _jobs:ExternalImageLoader; private var _sprites:Array; public function Main() { _jobs = new ExternalImageLoader(); _jobs.addEventListener(Event.COMPLETE, initialize); _jobs.load(IMAGE_URL); } private function initialize(e:Event):void { _jobs.removeEventListener(Event.COMPLETE, initialize); _sprites = []; for (var i:int = 0; i < IMAGE_NUM; ++i) { var bitmap:Bitmap = new Bitmap(_jobs.image); bitmap.x = -(IMAGE_OFFSET_X); bitmap.y = -(IMAGE_OFFSET_Y); var sprite:Sprite = new Sprite(); sprite.x = IMAGE_OFFSET_X; sprite.y = IMAGE_OFFSET_Y; sprite.scaleX = (sprite.scaleY = SCALE_DEFAULT * Math.pow(SCALE_MULTIPLIER, i)); sprite.addChild(bitmap); _sprites.push(sprite); addChildAt(sprite, 0); } addEventListener(Event.ENTER_FRAME, update); } private function update(e:Event):void { for (var i:int = 0; i < IMAGE_NUM; ++i) { var sprite:Sprite = _sprites[i]; sprite.scaleX = (sprite.scaleY *= SCALE_INCREASE); } // 最大の拡大率の画像が、限界値を超えていたら（完全に画面外に出ていたら） // 拡大率を最小にして、最奥へ再配置する var largest:Sprite = _sprites[0]; var smallest:Sprite = _sprites[IMAGE_NUM - 1]; if (largest.scaleY > SCALE_LIMIT) { largest.scaleX = (largest.scaleY = smallest.scaleY * SCALE_MULTIPLIER); _sprites.push(_sprites.shift()); addChildAt(largest, 0); } } } } //package { import flash.display.BitmapData; import flash.display.Loader; import flash.events.Event; import flash.events.EventDispatcher; import flash.net.URLRequest; import flash.system.LoaderContext; //public class ExternalImageLoader extends EventDispatcher { public var image:BitmapData; private var _tmpA:Loader; private var _tmpB:Loader; public function ExternalImageLoader() { image = null; } public function load(url:String):void { _tmpA = new Loader(); _tmpA.contentLoaderInfo.addEventListener(Event.INIT, tmpALoaded); _tmpA.load(new URLRequest(url), new LoaderContext(true)); } private function tmpALoaded(e:Event):void { e.target.removeEventListener(Event.INIT, tmpALoaded); image = new BitmapData(int(_tmpA.width), int(_tmpA.height), true, 0x00ffffff); _tmpB = new Loader(); _tmpB.contentLoaderInfo.addEventListener(Event.INIT, tmpBLoaded); _tmpB.loadBytes(_tmpA.contentLoaderInfo.bytes); } private function tmpBLoaded(e:Event):void { e.target.removeEventListener(Event.INIT, tmpBLoaded); image.draw(_tmpB); _tmpA = _tmpB = null; dispatchEvent(new Event(Event.COMPLETE)); } } //}