scroll2

by Scmiz 08 Sep 2011

Embed

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

package {
    import flash.display.Graphics;
    import flash.display.Sprite;
    import flash.events.Event;
    public class FlashTest extends Sprite {
        private var _frame:uint;

        public function FlashTest() {
            this.addEventListener(Event.ENTER_FRAME, proc);
        }

        private function proc(e:Event):void {
            ++_frame;
            if (_frame == 60) {
                _frame = 0;
            }

            var g:Graphics = this.graphics;
            g.clear();

            g.beginFill(0x000000);
            g.drawRect(0, 0, 465, 465);
            g.endFill();

            g.lineStyle(1, 0xFFFFFF);

            var centerX:Number = 232.5;
            var centerY:Number = -35;
            var widthMinHalf:Number = 50.0;
            var widthMaxHalf:Number = 200.0;

            g.moveTo(centerX - widthMaxHalf, 465);
            g.lineTo(centerX - widthMinHalf, centerY);
            g.moveTo(centerX + widthMaxHalf, 465);
            g.lineTo(centerX + widthMinHalf, centerY);

            for (var index:uint = 0; index < 4; ++index) {
                var y:Number = (index * 120) + (_frame * 2.0);
                y = y * (y * 0.003);
                var size:Number = widthMinHalf + (y * 0.3);
                g.moveTo(centerX - size, y + centerY);
                g.lineTo(centerX + size, y + centerY);
            }
        }
    }
}