spiral

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

package {
	import flash.display.Graphics;
    import flash.display.Sprite;
	import flash.events.Event;
    public class FlashTest extends Sprite {
        public function FlashTest() {
			this.graphics.beginFill(0x000000);
			this.graphics.drawRect(0, 0, 465, 465);
			this.graphics.endFill();
			
			var sprite:Sprite = new Sprite();
			sprite.x = 232.5;
			sprite.y = 232.5;
			this.addChild(sprite);
            
			var g:Graphics = sprite.graphics;
			g.lineStyle(3, 0x4040ff);
			g.moveTo(0, 0);
			
			var rad:Number = 0;
			var radius:Number = 0;
			
			var radSpeed:Number = Math.PI * 2 * 0.03125;
			var radiusSpeed:Number = 0.2;

			for (var index:uint = 0; index < 1800; ++index) {
				g.curveTo(
					Math.cos(rad + (radSpeed * 0.5)) * (radius + (radiusSpeed * 0.7)),
					Math.sin(rad + (radSpeed * 0.5)) * (radius + (radiusSpeed * 0.7)),
					Math.cos(rad + (radSpeed)) * (radius + (radiusSpeed)),
					Math.sin(rad + (radSpeed)) * (radius + (radiusSpeed))
				);
				
				rad += radSpeed;
				radius += radiusSpeed;
			}
			
			var proc:Function = function(e:Event):void {
				sprite.rotationZ -= 2;
			}
			this.addEventListener(Event.ENTER_FRAME, proc);
        }
    }
}