TOKYO 2020
一体いつから東京でオリンピックが開催されると錯覚していた？
/**
* Copyright o8que ( http://wonderfl.net/user/o8que )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/2A7m
*/
// forked from o8que's Enter the world of ... (あなたがiPadを購入すべきでない唯一の理由)
/* -------------------------------------------------------------------
* 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;
[SWF(backgroundColor="0x000000")]
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/3/38/38d2/38d204002b5b5d6b5a4403b88961dd52eb4ee268";
private static var IMAGE_NUM:int = 10; // 入れ子にする画像数
private static var IMAGE_OFFSET_X:Number = 170; // X座標位置の補正値
private static var IMAGE_OFFSET_Y:Number = 310; // Y座標位置の補正値
private static var SCALE_DEFAULT:Number = 5; // 初期拡大率
private static var SCALE_MULTIPLIER:Number = 0.48; // 拡大率の係数
private static var SCALE_LIMIT:Number = 14; // 拡大率の限界値
private static var SCALE_INCREASE:Number = 1.02; // 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));
}
}
//}