forked from: flash on 2012-6-12

by nontsu 12 Jun 2012
Embed
/**
 * Copyright nontsu ( http://wonderfl.net/user/nontsu )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/q48N
 */

// forked from nontsu's flash on 2012-6-12
package
{
    import flash.display.Sprite;
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.events.Event;
    import flash.filters.GlowFilter;
    import flash.geom.Point;
    import flash.geom.Rectangle;
 
    public class Main extends Sprite
    
    {
        addEventListener(MouseEvent.Click, onClick);
        private var balls:Vector.<Ball> = new Vector.<Ball>();
        private var bd:BitmapData;
        private var circle:BitmapData;
 
        public function Main()
        {
            var c:Sprite = new Sprite();
            c.graphics.beginFill(0x000000);
            c.graphics.drawCircle(5, 5, 3);
            c.graphics.endFill();
 
            circle = new BitmapData(10, 10, true, 0x0);
            circle.draw(c);
            circle.applyFilter(circle, circle.rect, new Point(), new GlowFilter(0xFFFFFF));
 
            addChild(new Bitmap(bd = new BitmapData(stage.stageWidth, stage.stageHeight, false, 0x0)));
            
        }
 
        private function onClick(e:Event):void 
        {
            var ball:Ball = new Ball();
            ball.x = Math.random() * stage.stageWidth;
            ball.y = 0;
            ball.vy = Math.random() * 3 + 3;
            balls.push(ball);
 
            bd.fillRect(bd.rect, 0x0);
 
            for (var i:int = 0; i < balls.length; i++)
            {
                ball = balls[i];
                ball.y += ball.vy;
                bd.copyPixels(circle, circle.rect, new Point(ball.x, ball.y), null, null, true);
 
                if (ball.y >= stage.stageHeight + 10)
                {
                    balls.splice(i--, 1);
                }
            }
        }
    }
}
 
class Ball
{
    public var x:Number;
    public var y:Number;
 
    public var vx:Number;
    public var vy:Number;
}