A while ago I made a version of the old computer art language Mini-Explor. It’s a library or domain specific language in Fortran. I’ve tidied the code up a little and added it to my source repository here –
http://OFFLINEZIP.wpsho/git/?p=explor.git;a=summary
You can get it using git –
git clone http://OFFLINEZIP.wpsho/git/explor.git
For more information on Explor, see –