flash on 2009-9-25

by musicbob88 25 Sep 2009

Embed

/**
 * Copyright musicbob88 ( http://wonderfl.net/user/musicbob88 )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/dsFN
 */

package
{
    import flash.display.Sprite;
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.events.Event;
    import flash.filters.BlurFilter;
    import flash.geom.Point;
    import flash.geom.ColorTransform;

    [SWF(backgroundColor="#000000", frameRate=20)]
    public class Main extends Sprite
    {
        private var canvas:Sprite;
        private var members:Array;

        private var bitd:BitmapData;
        private var bitm:Bitmap;

        private var ctf:ColorTransform;

        public function Main()
        {
            canvas = new Sprite();
            addChild(canvas);

            members = new Array();

            bitd = new BitmapData(500, 500, true, 0x00660000);
            bitm = new Bitmap(bitd);
            addChild(bitm);

            ctf = new ColorTransform(1, 1, 10, 10,
                                     -2, -2, -255, 0);            

            var tg:Item;
            var i:uint = 10;
 
            while (i--)
            {
                tg = new Item();
                canvas.addChild(tg);
                members.push(tg);
            }

            addEventListener(Event.ENTER_FRAME, createTg);           
        }

        private function createTg(event:Event):void
        {
            var tg:Item;
            var i:uint = members.length;
            
            while (i--)
            {
                tg = members[i];
                tg.loop();   
            }

            bitd.draw(canvas);
            bitd.applyFilter(bitd, bitd.rect, new Point(0,0), new BlurFilter(0, 0, 3));
            bitd.colorTransform(bitd.rect, ctf);
        }
    }
}

import flash.display.Sprite;
import flash.geom.Point;

internal class Item extends Sprite
{
    private var current:Point;
    private var old:Point;
    private var len:Number;
    private var angle:Number;

    public function Item()
    {
        current = new Point();
        current.x = 150 + 100 * Math.cos(1*Math.PI*2);
        current.y = 250 + 100 * Math.sin(1*Math.PI*2);
        
        old = new Point();
        old.x = current.x;
        old.y = current.y;

        len = Math.random()*20+10;
        angle = Math.random()*360;
    }

    public function loop():void
    {
        graphics.clear();
        graphics.lineStyle(Math.random()*4, Math.random()*0xFFFFFF, 1);
        graphics.moveTo(old.x, old.y);
        graphics.lineTo(current.x, current.y);

        old = current;
        angle += Math.random()*40-1;

        var p:Point = Point.polar(len, angle*Math.PI/180);
        p.x += current.x;
        p.y += current.y;

        current = p;

        if (current.x < 0)
        {
           current.x = 0;
           angle += 45;
        }
        else if (current.x > 500)
        {
           current.x = 500;
           angle += 45;
        }

        if (current.y < 0)
        {
           current.y = 0;
           angle += 45;
        }
        else if (current.y > 500)
        {
           current.y = 500;
           angle += 45;
        }
    }
}