Immutaball platformer game (prototype version)

The Immutaball platformer game is a rewrite of Neverball in Haskell. (Prototype version.)

Prototype

Currently this project only implements basic parts of the game: minimal GUI, basic physics, and a basic renderer. Much of the game is currently unimplemented (audio, goals, complete moving body physics, gameplay mechanics, etc.), but this project still serves as a useful example of a purely functional FRP application. Currently the physics has a few bugs.

Immutaball

Immutaball is a rewrite of Neverball in Haskell. It is useful for gaming and studying a purely functional FRP application. It does not use IO except for interfacing with external dependencies and ‘base’/‘haskell2010’ IO primitives like writing to a file (including concurrent evaluation).

Screenshots and demo

Demo video: https://byronjohnson.net/immutaball/immutaball-v0.1.0.1-demo.html. (Demo recorded before BSP physics algorithm.)

Usage example

(cd -- "${HOME}/git" && git clone https://github.com/Neverball/neverball)  # clone neverball
(cd -- "${HOME}/git/neverball" && make -j7)      # build neverball
cabal run immutaball -- -d ~/git/neverball/data  # run immutaball