My First FL Programing!!!

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

package 
{
	import flash.display.Sprite;
	import flash.events.Event;
	import flash.events.MouseEvent;
	
	/**
	 * ...
	 * @author Kenmaz
	 */
	public class FlashTest extends Sprite 
	{
		private var drawing:Boolean = false;
		
		public function FlashTest() 
		{
			stage.addEventListener(MouseEvent.MOUSE_DOWN, function(e:MouseEvent):void {
				drawing = true;
				graphics.moveTo(e.stageX, e.stageY);
			});
			stage.addEventListener(MouseEvent.MOUSE_UP, function(e:MouseEvent):void {
				drawing = false;
			});
			stage.addEventListener(MouseEvent.MOUSE_MOVE, function (e:MouseEvent):void {
				if (drawing) {
					graphics.lineStyle(1, 0xFF0000);
					graphics.lineTo(e.stageX, e.stageY);
				}
			});
		}
	}
	
}