gba-link-connection VS piugba

here's hoping this subreddit will be friendly to homebrew link cable games, too! With https://github.com/rodri042/gba-link-connection, implementing link cable support in homebrew GBA games is very doable these days.

I used this which saved me the trouble of dealing with the hardware! You can only send 2 bytes per frame, which was a lot more restricting than expected. The biggest challenge was making the little preview that shows you your opponent's board

The latest update adds a feature where the game can display background videos, reading them from the flashcart's SD card (in this case, an EverDrive GBA X5). Support for the EZ Flash Omega is still in the works.

The code uses elm-chan's FatFs (a small FAT32 library) to find the right sectors, and then DMAs each uncompressed video frame directly into VRAM, enabling 60FPS video playback efficiently. With the 32MiB ROM size limit no longer being an issue, I opted to not compress the videos at all, which allowed to also run other things in the game loop like GSM audio decoding, the chart-reading routines or the wireless adapter multiplayer code.

Here's the game source code: https://github.com/afska/piugba

You can check the code at https://github.com/rodri042/piugba

https://github.com/rodri042/piugba (source code)