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Build Status


FRPong is a proof-of-concept for architecting a game on the web using a combo of technologies.

Specifically, a mixture of Purescript, SodiumFRP, Rust/Wasm, Typescript, WebGL/WebAudio/WebWorkers, etc.

Controls

  • Serve Ball: Space
  • Move Paddle: up/w or down/s

Tech Specs

Game (via WebWorker)

  • Purescript + SodiumFRP + Rust + Typescript glue
  • Main logic is all Purescript and SodiumFRP
  • Solves collision, out-of-bounds checking, and interpenetration adjustments by using time and history
  • Physics is done by changing functions to derive motion, not per-tick numerical accumulation
  • Rust/WebAssembly is mostly just a proof of concept and used for math helpers

IO (entrypoint)

  • Raw WebGL renderer
  • WebAudio synth
  • Passes input controller and tick updates
  • Typescript
  • CRT shader effect taken from libretro (only looks good on largish window size)

Future ideas

  • With upcoming offscreenCanvas support, might separate rendering into its own thread too
  • Could use a renderer built for functional pipelines, like pure3d
  • Train AI against human data (would require hundreds of hours of playing...)
  • Library idea - automatically adapt all the libretro shaders for easy swapping

Misc Notes

  • Experimental and purposefully over-engineered - though I dunno, this also kinda feels like a cool starting point?
  • The multi-threading is probably pointless and wasteful in this case, but it doesn't really hurt afaik
  • Different webpack modes ("dev", "build" and "bundle") - as well as travis setup for running tests
  • It might be worth exploring state serialization via flatbuffers and then using that to transfer across all boundaries (even to the wasm layer)