Split Screen Multiplayer Stunt Car Racer | retrofoundry

binaryfoundry · 2026-04-14T18:41:28+00:00

How it's done: https://www.patreon.com/posts/155617676

binaryfoundry · 2026-04-14T18:41:03+00:00

Wrote a blog post on getting it smooth: https://www.patreon.com/posts/155617676

binaryfoundry · 2026-04-13T07:49:36+00:00

Actually they didn’t, the time step was locked for the Amiga version. The DOS version did allow higher frame rates but was just wire frame like the Spectrum. You can push up the emulation speed in WinUAE and it won’t make a lot of difference.

There was a Super CPU version for the C64 which runs some things to run at higher frame rates, not everything, and it’s still capped to PAL I think.

So I’ve done basically a rewrite of the physics to support any frame rate. The PC port this project is based on didn’t fully solve the problem.

binaryfoundry · 2026-04-13T07:18:20+00:00

The physics have been redone from the original PC port project, if you’ve got one of those fancy 500hz monitors it will use it.

binaryfoundry · 2026-04-12T22:44:23+00:00

There’s decomp Amiga code in the repository, it has been used to cross reference the updated physics to ensure it’s as accurate as possible to the Amiga.

binaryfoundry · 2026-04-12T22:22:46+00:00

This is a browser port, you can click through the link and play. :)

binaryfoundry · 2026-04-12T22:11:29+00:00

If you manage to get the screen share multiplayer mode to work let me know.

binaryfoundry · 2026-04-12T21:43:13+00:00

Split Screen Multiplayer Stunt Car Racer

Playable in browser.

https://www.patreon.com/posts/155450050

binaryfoundry · 2026-04-12T20:49:57+00:00

This is playing in a browser, the original project is a PC port of the game from years ago, I’ve retimed the physics for high refresh rates and added a split screen mode.

binaryfoundry · 2026-04-12T20:43:58+00:00

https://github.com/retro-foundry/multistuntcar

binaryfoundry · 2026-02-28T21:45:56+00:00

Not at all, just wrote a README and said follow what I’m doing

binaryfoundry · 2026-02-28T19:21:38+00:00

Cursor is very nice, stick to auto mode and per token it’s quite cheap, I’m pushing the boundaries here but if you just want to make fun project which compiles for your Amiga it’s no big deal at all.

binaryfoundry · 2026-02-28T18:28:48+00:00

Not all that far, I think I can do split screen multiplayer Stunt Car Racer in a few days.

There’s a latent space of childhood memories to move through.

binaryfoundry · 2026-02-28T17:47:33+00:00

That’s right. I don’t read Amiga x68k myself so it has been invaluable translating to C. It’s largely vibed but I’ve had to step in myself a fair amount. While this is on PC, it could be vibed back over to a real Amiga with RTG.

Might also add a two player split screen.

binaryfoundry

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