Functions Returning Functions (Revised)

/**
 * Copyright nitoyon ( http://wonderfl.net/user/nitoyon )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/6Cms
 */

// Functions Returning Functions (Revised)
// original: http://actionsnippet.com/?p=2430
//  - Removed line variable by using arguments.callee.
package {
import flash.display.Sprite;

public class FlashTest extends Sprite {
    public function FlashTest() {
        var connect:Function = function(xp:Number, yp:Number, col:uint=0):Function{
            graphics.lineStyle(0,col);
            graphics.moveTo(xp, yp);
            return function(xp:Number, yp:Number):Function{
                graphics.lineTo(xp, yp);
                return arguments.callee;
            };
        }
         
        // draw a triangle
        connect(200,100)(300,300)(100,300)(200, 100);

        // draw a box
        connect(100,100, 0xFF0000)(150,100)(150,150)(100, 150)(100,100);
    }
}
}