aphics.drawPath(
      regularNGon($coord(320, 50), $coord(300, 20), 6),
      blackStroke, blueFill);

  graphics.drawPath(
      arrow($coord(0, 300), $coord(100, 400), 0, 0),
      blackStroke, blueFill);
  graphics.drawPath(
      arrow($coord(120, 400), $coord(200, 300), 0, 10),
      blackStroke, blueFill);
  graphics.drawPath(
      arrow($coord(220, 300), $coord(300, 400), 10, 0),
      blackStroke, blueFill);
  graphics.drawPath(
      arrow($coord(320, 400), $coord(400, 300), 10, 10),
      blackS