fp-course VS sdl-gpu-hs

fp-course ?

Fp-course exercise

there is the fp-course https://github.com/tonymorris/fp-course - I think this was forked a lot - maybe a bit more involved

You could always compare your solutions to the solution repo: https://github.com/tonymorris/fp-course

Right, so this deserves a little bit of elaboration if you're not already familiar with Haskell. Haskell source code satisfies a substitution property that source code in other languages doesn't. In Haskell, you can take any common snippet, refactor that out to a name, and invoke the name instead, and this doesn't changes the meaning of the program. Similarly, you can inline any named snippet at its invocation site without changing the meaning of the program. (Here's a good explanation of the substitution property I'm talking about, along with a demonstration of how Python, for example, does not satisfy the same substitution property: https://github.com/tonymorris/fp-course#demonstrate-io-maintains-referential-transparency.)

The bindings are currently source-only here. I am going to release to Hackage soon (tm), but I just haven't had the time to button it up. However, they do work great. Every game I've done for Ludum Dare except 47 (which was gloss) has used these bindings.

The guts are in the Memorable module. There are some operators in there that allow you to pluck individual fields from struct pointers in IO instead of marshaling entire structs needlessly.

The games are built on a custom "engine" made with SDL2 and some other C libraries I wrote bindings for: sdl-gpu, cute_c2, and cute_sound. I use apecs and cleff for the general architecture. And for animations, I use a combination of animate and ease.

You can't exactly allocate data in this custom memory management system, but you can get close with some type-level/generics stuff I think. I've been playing with it quite a bit for no-marshal hsc FFI bindings [1] [2], and it's worked nicely for that in raw IO. With some extra elbow grease, I can probably make it work for pure linear code too.