forked from: flash on 2009-10-7

/**
 * Copyright complexresponse ( http://wonderfl.net/user/complexresponse )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/n3NB
 */

// forked from rao_monteiro's flash on 2009-10-7
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 caurina.transitions.properties.FilterShortcuts;    
    
    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 = 400;        
                private var bh:Number = 400;        
                public var snapSize:Number = 40;    
                            
                public function BitmapSnapShot(){            
                    init(snapSize);        
                }
                
                public function init(snapSize:Number = 40):void{        
                    FilterShortcuts.init();
                    box = new Sprite();            
                    box.graphics.beginFill(0x003399);            
                    box.graphics.drawRect(0,0,bw,bh)            
                    box.graphics.endFill();            
                    box.x = 20;            
                    box.y = 20;            
                    addChild(box);            
                    cols = box.width / snapSize;            
                    rows = box.height / snapSize;            
                    total = cols * rows;            
                    count = total;            
                    bitmapimg = new BitmapData(snapSize, snapSize,false,0x000000);        
                    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);            
                              }            
                       box.visible = false;            
                       startAnimation();
            }
            private function startAnimation():void{
                var calcTime:Number = total+1;           
                minuteTimer = new Timer(1,calcTime);           
                minuteTimer.addEventListener(TimerEvent.TIMER, Animate);            
                minuteTimer.addEventListener(TimerEvent.TIMER_COMPLETE, onTimerComplete);            
                minuteTimer.start();
            }
            
            private function ranDom(min:Number, max:Number):Number {
                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);                
                    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{
                count = 0;                
                total = 0;                
                rows = 0;                
                cols = 0;                
                pictures = [];            
                dispatchEvent(new Event("all done animation")); 
            }
    }
}