logoalt Hacker News

Turtletoy

227 pointsby ustadlast Wednesday at 6:57 PM41 commentsview on HN

Comments

susamtoday at 4:49 AM

A few years ago, I wrote an esoteric, minimalistic turtle graphics language called CFRS[]: <https://susam.net/cfrs.html>.

This was an exercise in making a turtle graphics language that is as minimal as possible. It is closer to Brainfsck than JavaScript and it is not Turing complete, by design.

To see some demos, go to <https://susam.github.io/cfrs/demo.html>.

show 1 reply
markknoltoday at 11:55 AM

Such a nice project!! I made several turtles too, check https://turtletoy.net/user/markknol

zkmontoday at 6:03 AM

It's a weird feeling. I'm starting to loathe the very art I used to admire and spend lot of hours to create. It's like the Gulliver story where people were fed with lots of tasty food, by the monster.

matsemanntoday at 8:48 AM

Similar: https://www.dwitter.net/

Where you get 140 characters to draw using code. (Similar as in the resulting pictures reminded me of dwitter)

show 2 replies
Duanemclemoretoday at 5:57 AM

When I was seven I wrote a LOGO program on our school's Apple IIe to tile the (green monochrome) monitor with hexagons. It's all been downhill since.

show 1 reply
cryptonectortoday at 4:53 AM

LOGO lives!

show 2 replies
btbuildemtoday at 5:20 AM

This is so neat. I quite like this one: https://turtletoy.net/turtle/782a9f5329

iberatortoday at 6:42 AM

No screenshots?!

Not clear nor simple. Imo negligible use for teaching. If you know how to import modules and use library functions then you don't need LOGO anymore...

'KEYWORD(50)'

is always simpler than:

' turtle.function(value, value)'

Great project but missed the opportunity to develop your own LOGO interpreter from scratch in web assembly:)

show 1 reply
andoandotoday at 6:31 AM

This is really cool. Ive been thinking a lot about how to make a Turing complete visual language.

cubefoxtoday at 12:17 PM

This is what "computer art" and "generative art" meant for decades: relatively short programs generating interesting pictures. Today's text-to-image models are quite different from that.

(But I think even for diffusion models, interesting pictures that come from very short or unspecific prompts are more in the spirit of classic generative art, as they don't try to describe specific details explicitly.)

antristoday at 8:07 AM

I wish you could export these in higher res and 16:9, would make good background images

show 1 reply
Sabr0today at 10:05 AM

HAHA it brings back memories!

busterarmtoday at 5:22 AM

LOGO on Apple IIs was my very first experience with programming. Seeing this puts a huge smile on my face.

show 1 reply
01HNNWZ0MV43FFtoday at 8:22 AM

Can't I slow down the drawing to watch it work?

show 2 replies
the-mitrtoday at 5:56 AM

Another addition to the Logo tree https://pavel.it.fmi.uni-sofia.bg/logotree/table.html

empressplaytoday at 6:58 AM

Great stuff, kind of like the turtle graphics library for p5.js.

If you want to create much fancier graphics (and games!) in actual Logo, check out turtleSpaces:

https://turtlespaces.org