flash on 2012-12-1

by yonatan 30 Nov 2012

• Related works: 2
Embed

/**
 * Copyright yonatan ( http://wonderfl.net/user/yonatan )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/d22Q
 */

package {
    import flash.display.*;
    import flash.events.*;

    public class main extends Sprite {
        private var bmd:BitmapData = new BitmapData(465, 465, false, 0);
        private var bmp:Bitmap = new Bitmap(bmd);
        private var _x:int = 0, _y:int = 0, dsq:int = 0;

        function main():void {
            addChild(bmp);
            addEventListener("enterFrame", frame);
        }

        private function frame(e:Event):void {
            for(var i:int = 0; i < 1000; i++) tick();
        }

        private function tick():void {
            bmd.setPixel(232+_x, 232+_y, dsq);
            var dir:int = Math.random()*4;
            switch(dir) {
                case 0: if(_y>-200) { dsq = dsq - _y - _y + 1; _y--; } break;
                case 1: if(_x< 200) { dsq = dsq + _x + _x + 1; _x++; } break;
                case 2: if(_y< 200) { dsq = dsq + _y + _y + 1; _y++; } break;
                case 3: if(_x>-200) { dsq = dsq - _x - _x + 1; _x--; } break;
            }
        }
    }
}