Typhoon

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favorite:9
lines:88
license : All rights reserved
modified : 2009-04-02 00:40:49

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package {
        import flash.display.Sprite;
        import flash.events.Event;
        import flash.events.MouseEvent;
          [SWF(backgroundColor="#000000", frameRate=30)]
        public class ParticleTest extends Sprite {
   
            private var _ballNum:uint=35;
            private var _ballAr:Array=[];
           public function ParticleTest() {
              addEventListener(Event.ADDED_TO_STAGE,init);
          }
           
           private function init(e:Event):void
           {
               removeEventListener(Event.ADDED_TO_STAGE,init);
               addEventListener(Event.ENTER_FRAME,render)
           }
      
           private function render(e:Event):void{
               if(_ballAr.length!=_ballNum){
                  _ballAr.push(new Particle(_ballAr.length-1));
                   _ballAr[_ballAr.length-1].addChild(this)
              }
               for(var i:uint=0;i<_ballAr.length;i++){
                
                   _ballAr[i].update()
               }
           }
       }  
   }
       import flash.display.Sprite;
       import flash.display.DisplayObjectContainer;
       import flash.filters.*
       class Ball extends Sprite {
          private var _id:uint
  
           public function Ball(id:uint) {
               _id=id
               drawCirc();
           }
  
           private function drawCirc():void
           {
               var color:uint=0xFFFFFF*Math.random()
               graphics.beginFill(color);
               graphics.drawCircle(0,0,10);
               graphics.endFill();
               blendMode="add"
               filters=[new GlowFilter(color,1,8,8)]
           }
       }
  
       class Particle{
           private var _x:Number;
           private var _y:Number;
           private var _z:Number;
           private var _scaleX:Number;
           private var _scaleY:Number;
           private var _id:uint;
           private var _graphic:Ball;
  
           private var _rad:Number=1;
           private var _r:Number=100;
          
           public function Particle(num:uint){
               _id=num;
               _graphic=new Ball(_id);
               _rad=Math.PI*_id/2
              _y=480;
               
           }
  
           public function update():void
           {
  
               
               _y=_y-2
               
               _r=(480-_y)/2
              _rad=_rad+0.1;
              _x=Math.cos(_rad)*_r+240;
               
              
              _z=Math.sin(_rad)*_r+240;
               _scaleX=_scaleY=_z/480*(480-_y)/480
               _graphic.x=_x;
               _graphic.y=_y;
               _graphic.scaleX=_scaleX;
               _graphic.scaleY=_scaleY;
               if(_y<0){
                   init()
              }
           }
 
          private function init():void
          {
             _y=480
          }

public function addChild(container:Sprite):void
          {
             trace(container)
              container.addChild(_graphic)
          }
      }

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