OP here! People are rightfully pointing out that this can be compressed further.

My challenge to you: Implement a compressed representation along with the get_cell and set_cell methods, without resorting to lookup tables!

Also, check out Alejandra’s blog at https://goose.love/!

(And yeah, you need 12 or 13 bits, not 10, if you don’t want to eliminate symmetries.)

The Internet Archive also has a collection of Flash games: https://archive.org/details/softwarelibrary_flash_games

(OP posted a collection of arcade games preserved by the Internet Archive, played with an emulator in the browser.)

The GNU Coding Standards has a section on Make, which I would think is the most prominent Make style guide.

The doc itself doesn’t have a section on comments, but in the few examples given in that doc, they use style B.

https://www.gnu.org/prep/standards/html_node/Makefile-Conventions.html

The Kind James Bible for GameBoy!?