wizcat / jslogo

Logo in JavaScript

Geek Repo:Geek Repo

Github PK Tool:Github PK Tool

jslogo - Logo in JavaScript

This is hosted at http://calormen.com/jslogo for playing with live.

Language Reference - this attempts to implement a subset of UCBLogo defined in in Brian Harvey's Computer Science Logo Style

For older browsers, clone polyfill into a sibling directory. For syntax highlighting, clone CodeMirror into a sibling directory. So you'll end up with a directory structure like:

jslogo/
polyfill/
CodeMirror/

Logo Examples

to star repeat 5 [ fd 100 rt 144 ] end
star
to square :length repeat 4 [ fd :length rt 90 ] end
repeat 36 [ square 50 rt 10 ]
to randomcolor setcolor pick [ red orange yellow green blue violet ] end
repeat 36 [ randomcolor square random 200 rt 10 ]
window pu repeat 72 [ setlabelheight repcount fd repcount * 2.5 label "Logo bk repcount * 2.5 rt 10 ]

To Do

  • Document deviations from UCB Logo standard
  • Make these examples all work: Logo 15-word challenge
  • Use Workers, so you can see the turtle move
  • Tail-call optimization

About

Logo in JavaScript

License:Other