Show HN: I also made a three-body simulation

#1

Post by sulami » Thu, Apr 18, 2024, 1:23 AM UTC

Somewhat inspired by a recent post here, I also made a three-body simulation on a whim, meaning to try out macroquad[0] (verdict: really nice!). Thanks to the engine I could trivially target wasm as well, so others can get mesmerized too.

The source is available here: https://github.com/sulami/three-bodies

[0]: https://docs.rs/macroquad/latest/macroquad

Show HN: I also made a three-body simulation
three-bodies.sulami.xyz

Re: Show HN: I also made a three-body simulation

#2

Post by nico » Thu, Apr 18, 2024, 2:21 AM UTC

So nice to look at, thank you for posting this, really cool

Would love to be able to zoom in/out and rotate, I kinda was expecting to be able to do it with the mouse and was a bit surprised that clicking just restarted the animation/simulation

Great work

Re: Show HN: I also made a three-body simulation

#3

Post by awinter-py » Thu, Apr 18, 2024, 2:29 AM UTC

I don't understand how the aliens weren't able to lie but they were able to falsify scientific results

that's like the third most common form of lying

Re: Show HN: I also made a three-body simulation

#4

Post by sulami » Thu, Apr 18, 2024, 2:36 AM UTC

nico wrote: post #2

So nice to look at, thank you for posting this, really cool Would love to be able to zoom in/out and rotate, I kinda was expecting to be able to do it with the mouse and was a bit surprised that clicking just restarted the animation/simulation Great work

Thank you.

The clicking to restart is there mainly for phone users, I realized after sharing with a friend that hotkeys aren't very mobile-friendly. I don't have a good way to detect desktop vs. mobile clients, and technically one can also have a keyboard connected to a phone.

I've also been thinking about zooming, I'll see what I can do over my next lunch break :D

Re: Show HN: I also made a three-body simulation

#5

Post by DigitalHackOp » Thu, Apr 18, 2024, 2:47 AM UTC

I think this is very cool, but the edge warping negates a lot of the chaos imho. It keeps things interacting in the center of the screen, but it prevents the chaos of bodies being yeeted out into the void.

Re: Show HN: I also made a three-body simulation

#6

Post by bugbuddy » Thu, Apr 18, 2024, 2:48 AM UTC

awinter-py wrote: post #3

I don't understand how the aliens weren't able to lie but they were able to falsify scientific results that's like the third most common form of lying

Plot holes so numerous and large that it reminds me of all the other Sci-Fi works I have read. /s

Re: Show HN: I also made a three-body simulation

#7

Post by pointlessone » Thu, Apr 18, 2024, 8:30 AM UTC

Interesting choice of modular coordinates. I wonder how gravity works here. Does it reach across the edge or is it confined to the modulo?

UI is a bit unfriendly on mobile. It doesn’t seem there’s a way to interact with it on a phone.

Re: Show HN: I also made a three-body simulation

#8

Post by gaws » Thu, Apr 18, 2024, 9:47 PM UTC

How was your experience working with WASM and implementing it on the page?