rule 110

See this in action at samtay.github.io/reflex-rule110.

about

This is a small working example of showing the rule 110 computation via reflex, an FRP library.

Note: I recently wrote a little Haskell implementation of rule 110 as an interview challenge problem and told the potential employer that I would not post the solution online. Hence, the Rule module is gitignored here.

building

dependencies

The only build requirement is nix which can be installed by running a single script:

curl https://nixos.org/nix/install | sh

using build

Everything you should need is encompassed in my build script. The first time you run it, be prepared to wait a while. The second time around everything should be cached and snappy.

First, write your own Rule.hs file or something else to play with. Then:

# build via ghcjs to web
./build
xdg-open dist/build/rule110/rule110.jsexe/index.html

# build via ghc to native webkitgtk
./build --ghc
./dist/build/rule110/rule110

# enter nix-shell for either environment
./build -s [--ghc|--ghcjs]