Turtle Graphics - Small Basic Featured Program

First published on MSDN on Apr 14, 2015

Authored by Nonki Takahashi

Today I will introduce my Turtle Graphics program written in Small Basic.

This project was started in a forum thread "Another Turtle Graphics" on March 21, 2014.  This project aimed to create a programming environment used before Small Basic.  But the development of this Turtle Graphics program has been suspended until this month.

So I proposed to create newer version of the Turtle Graphics for "Challenge of the Month - April 2015" .

Then the latest version of this Turtle Graphics is XVK119-3 .

This version supports:

• Following commands.
  
  
  
  
  • FORWARD n (to move the turtle n pixels)
  
  
  • RIGHT n (to rotate the turtle right n degrees)
  
  
  • LEFT n (to rotate the turtle left n degrees)
  
  
  • PENUP (to lift the pen up)
  
  
  • PENDOWN (to set the pen down)
  
  
  • REPEAT n [commands] (to repeat commands n times)
  
  
  
  


• Nested REPEAT.


• To skip opening with space key.

See Also

• Small Basic: The History of the Logo Turtle - history of Turtle Graphics


• Small Basic - Clearing Turtle Trails - hint to add CLEAR command to this project