A simple 16x16 dot animation from simple math rules

145 andrewrn 34 5/10/2025, 2:56:38 AM tixy.land ↗

Comments (34)

jakegmaths · 5h ago
I loved tixy when I first discovered it a few years ago so created this https://www.mathsuniverse.com/tixy (with permission from the original author) with puzzles to solve on the tixy grid. I use it with my computer science students who get really into it.
oneeyedpigeon · 2h ago
Reminds me of [Replicube](https://store.steampowered.com/app/3401490/Replicube/), which has released recently and does the same kind of thing in 3D.
acomjean · 33m ago
Fun. Thanks!

Works well on phone. The phone keyboard is a bit clumsy but it works (that’s a phone issue)

dndn1 · 2h ago
This is a cool way to teach!

I was blown away by the little functions at first and I too made a clone to experiment with calculang [1].

I added an evaluation feature (F9) so you can select sub-expressions and see what they do, which was helpful to figure out some patterns (video in [2])

[1] https://calculang-editables.netlify.app/tixyish

[2] https://www.youtube.com/watch?v=uXUd_-xrycs

chrisjj · 34m ago
> In computer graphics, the origin (0, 0) is top-left rather than bottom-left

Umm...

soegaard · 3h ago
Well done!
nopakos · 43m ago
That's fantastic!

I would love something like this in my living room. Especially if it is not just a screen. Maybe a grid of 256 screens? Or inflating balloons? Something easier to make? Just on/off big pixels?

mckeed · 33m ago
alexilchenko · 1h ago
alexilchenko · 55m ago
Tepix · 30m ago
Isognoviastoma · 2h ago
alexilchenko · 59m ago
rpastuszak · 6h ago
I made a drawing app with programmable brushes inspired by tixy:

https://fig.sonnet.io

It’s pretty fun because the shape dynamics are time, and not pressure/tilt based, so you need to draw in a rhythm.

Here’s how they work and how they’re implemented:

https://untested.sonnet.io/notes/fig-tree-brushes/

chrisjj · 36m ago
> // hit "enter" to save in URL

There's no enter on Android Chrome on phone.

dtagames · 13m ago
The enter key on the phone keyboard works if you tap that message.
Nautman · 2h ago
I love it! Here's a windscreen wiper.

https://tixy.land/?code=sin%28t%29*%281%2Bx%2By%29-x

continuational · 3h ago
_def · 3h ago
i don't even know whats happening but its mesmerizing https://tixy.land/?code=sin%28i*t%2F128%29
alexilchenko · 1h ago
shakedownstreet · 4h ago
tgv · 2h ago
I’m considering that as a load screen animation. Bunch of different functions, and the user will be entertained.
tjwds · 1h ago
When this was first released, I put together an homage to the music video for “Fell In Love With A Girl” by The White Stripes.

https://tixy.land/?code=floor(t%256)%20%3D%3D%3D%200%20%3F%0...

GenshoTikamura · 3h ago
Would be cool to implement this physically as an array of iris diaphragms
tetris11 · 5h ago
antirez · 5h ago
The classic: sin(x/2+t)+cos(y/2+sin(t))
fulafel · 4h ago
Cool stuff.

Learned by scrolling far enough right in view source: The last line is editable and eval'd.

Request to author: keep the newlines.

Jyaif · 59m ago
> The last line is editable and eval'd

Right. https://tixy.land/?code=alert(%22foo%22)

xanlack · 1h ago
really impressive, keep up the good work
spencerflem · 5h ago
this is beautiful. i love it so much :)
bingrrr · 9h ago
great