flash on 2013-4-6

by biango0831 06 Apr 2013

Embed

/**
 * Copyright biango0831 ( http://wonderfl.net/user/biango0831 )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/x2Kd
 */

package

{

    import flash.display.Sprite;

    import flash.display.Bitmap;

    import flash.display.BitmapData;

    import flash.events.Event;

    import flash.filters.GlowFilter;

    import flash.geom.ColorTransform;

    import flash.geom.Point;

    import flash.geom.Rectangle;

 

    public class Main extends Sprite

    {

        private var balls:Vector.<Ball> = new Vector.<Ball>();

        private var canvas:BitmapData;

        private var circle:BitmapData;

        private var ct:ColorTransform = new ColorTransform(0.9, 0.9, 0.9);

 

        public function Main()

        {

            var c:Sprite = new Sprite();

            c.graphics.beginFill(0x009AD6);

            c.graphics.drawCircle(5, 5, 1);

            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(canvas = new BitmapData(stage.stageWidth, stage.stageHeight, false, 0x0)));

            addEventListener(Event.ENTER_FRAME, onEnterFrame);

        }

 

        private function onEnterFrame(event: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);

 

            canvas.colorTransform(canvas.rect, ct);

 

            for (var i:int = 0; i < balls.length; i++)

            {

                ball = balls[i];

                ball.y += ball.vy;

                canvas.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;

}