forked from: forked from: Study AS3 [flash on 2009-9-27] BitmapData

/**
 * Copyright bradsedito ( http://wonderfl.net/user/bradsedito )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/nViI
 */

// forked from xxxYukihiroxxx's forked from: Study AS3 [flash on 2009-9-27] BitmapData
// forked from xxxYukihiroxxx's Study AS3 [flash on 2009-9-27] BitmapData
/*
 * 200909272042
 *
 * Bitmapのお勉強。
 *
 * This file is for personal, free, non-commercial use.
 * Please contact the author if you plan to use the file in other situations.
 * Feel free to donate to the cause. 
 * 
 * 右上に自作アイコンを表示。クリックしたら同じ動作をする。
 * 連続クリックでバグる。ある意味、面白い表現が出来るかも？！
 *
 *
 * 20100429
 * warningが表示されていたので修正。
 * BitmapSnapShot.as(74): col: 24 Warning: parameter 'snapSize' has no type declaration.
 * どんなパラメータなのかわかんねーよ。ちょっと指定してくれないか？というわーにんぐだったので
 * 普通に、ナンバーで指定してやった。
 *
 */


package 
{
    import flash.display.*;
    import flash.display.BitmapData;
    import flash.geom.Rectangle;
    import flash.geom.Matrix;
    import flash.events.*;

    import flash.utils.Timer;
    import flash.filters.*;
    import caurina.transitions.Tweener;

    import flash.net.URLRequest;

    [SWF(width = "465", height = "465", backgroundColor = "0xFFFFFF", frameRate = "120")]
    
    public class BitmapSnapShot extends MovieClip {
            public var box:Sprite;
            public var img:MovieClip;
        private var bitmapimg:BitmapData;
        private var pictures:Array = new Array();
        private var total:uint;
        private var count:uint = total;
        private var posx:uint;
        private var posy:uint;
        
        private var minuteTimer:Timer;
        private var cols:Number;
        private var rows:Number;
        private var bw:Number = 440;
        private var bh:Number = 400;

        public var snapSize:Number = 60;                
                
        public function BitmapSnapShot() {
            var loader:Loader = new Loader(); 
            addChild(loader);
            loader.load(new URLRequest("http://la-nouveau.dyndns.org/wonderfl/reroad_icon.gif"));

            // 画像の位置指定（px）
            loader.x = stage.stageWidth - loader.width - 30;
            loader.y = 10;
            
            addEventListener(MouseEvent.CLICK, playMotion);
            buttonMode = true;
            
            init(snapSize);
            
            function playMotion(event:MouseEvent):void {
                init(snapSize);
            }
        }
        
        public function init(snapSize:Number):void {
            box = new Sprite();
            //box.graphics.beginFill(0x000000);
            box.graphics.beginFill(Math.random() * 0xffffff);
            box.graphics.drawRect(0, 0, bw, bh);
            box.graphics.endFill();
            box.x = 12;
            box.y = 12;
            addChild(box);
                
            cols = box.width / snapSize;
            rows = box.height / snapSize;
            total = cols * rows;
            count = total;
                
            bitmapimg = new BitmapData(snapSize, snapSize, false, 0xFFFFFF);
                
            for (var i:uint = 0; i < total; i++) {
                img = new MovieClip();
                addChild(img);
                var myBitmap:Bitmap = new Bitmap(bitmapimg);
                img.addChild(myBitmap);
                pictures.push(img);
                pictures[i].x = box.x + (i % cols) * snapSize;
                pictures[i].y = box.y + Math.floor(i / rows) * snapSize;
                pictures[i].alpha = .9;
                bitmapimg.draw(box);
            }

            //hide the original box
            box.visible = false;
            startAnimation();
        }
        
        private function startAnimation():void {
            var calcTime:Number = total + 1;
            minuteTimer = new Timer(1, calcTime);

            // designates listeners for the interval and completion events
            minuteTimer.addEventListener(TimerEvent.TIMER, Animate);
            minuteTimer.addEventListener(TimerEvent.TIMER_COMPLETE, onTimerComplete);

            // starts the timer ticking
            minuteTimer.start();
        }

        private function ranDom(min:Number, max:Number):Number {
            //generates a random number between min and max
            var randomNum:Number = Math.floor(Math.random() * (max - min )) + min;
            return randomNum;
        }

        private function Animate(e:TimerEvent):void {            
            if (count >= 0) {
                var clip:MovieClip = pictures[count];
                var rot:Number = ranDom(-200, 250);
                //tween out
                Tweener.addTween(clip,{rotation:rot,time:5,transition:"linear"});
                Tweener.addTween(clip,{ y:stage.stageHeight+80,time:1.5,transition:"easeInOutBack", transitionParams:{overshoot:0.1}});
                Tweener.addTween(clip,{alpha:0,time:1,transition:"easeInQuart"});
                Tweener.addTween(clip,{_blur_blurX:10,_blur_blurY:10,time:.2,transition:"linear"});
                //
                if(count <= 0){
                    AllDone();
                }
                count--;
            }
        }
        
        public function onTimerComplete(event:TimerEvent):void {
            minuteTimer.stop();
            removeEventListener(TimerEvent.TIMER, Animate);
            removeEventListener(TimerEvent.TIMER_COMPLETE, onTimerComplete);
        }
            
        private function AllDone():void {
            //reset everything and take fla to 2nd frame
            count = 0;
            total = 0;
            rows = 0;
            cols = 0;
            pictures = [];
            dispatchEvent(new Event("all done animation")); 
        }
    }
}