Logo Arts

To New
  # set default screen, pen and turtle values
  ResetAll SetScreenSize [400 400] HideTurtle
  SetSC Black SetPC Green SetPS 1 PenUp
End

To Wave :Size
  If :Size <2 [Stop]     # stop when size too small
  PenUp Back :Size PenDown
  rArc 10 :Size Forward :Size Wait 10
  Wave :Size/1.1
End

To rArc :Angle :Radius
  # clockwise arc drawn relative to turtle heading
  Arc :Radius Heading :Angle+Heading Right :Angle
End

To Go
  New SetPos [192 -170] SetH 270 PenDown
  Forward 384 Wave 384
End