forked from: Particle Template

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





package 
{
    import flash.display.*;
    import flash.events.*;
    
    public class Main extends Sprite 
    {
        public function Main() 
        {
            var bmd:BitmapData = new BitmapData(465, 465, false, 0x0);
            var bmp:Bitmap = new Bitmap(bmd);
            addChild(bmp);
            
            var particles:Array = [];
            for(var i:int=0; i<1000; i++){
                var p:Particle = new Particle();
                p.x = 465 / 2; // 画面中央の座標を指定
                p.y = 465 / 2; 
                p.z = p.z*Math.random(); 
                p.vx = 10 * ( Math.random() - 0.5);  // ランダムな速度を指定
                p.vy = 10 * ( Math.random() - 0.5);
                p.vz = 1000 * ( Math.random() );
                p.color = 0xFFFFFF;
                particles[i] = p;
            }
            
            addEventListener(Event.ENTER_FRAME, enterFrameHandler);
            
            function enterFrameHandler(e:Event):void{
                bmd.fillRect(bmd.rect, 0x000000);
                
                for(var i:int=0; i<particles.length; i++){
                    var p:Particle = particles[i];
                    p.x += p.vx;
                    p.y += p.vy;
                    p.z += p.vz * Math.random();
                    bmd.setPixel32(p.x, p.y, p.color);//addChild(  particles[i] );  
                }
            }
        }
    }
}

import flash.display.Sprite;
class Particle extends Sprite
{
    /*public var x:Number; // X座標
    public var y:Number; // Y座標
    public var z:Number; // Y座標*/
    public var vx:Number; // X軸方向の速さ
    public var vy:Number; // Y軸方向の速さ
    public var vz:Number; // Y軸方向の速さ
    public var color:uint; // 色情報
}