Hello,

I'm looking into making a multiplayer top-down 2D arena spaceship shooter game. I want to use a deterministic (across PC/Mac/Linux) simulation so my networking code only needs to handle passing player inputs.

Are there any existing C++ libraries that work deterministically across platforms I could use for 2D ship/gun/projectile movement/collisions?

Integer-based physics seems like a fine approach for handling this, so a library like that would work.