[Haskell-cafe] Card games

Joe Fredette jfredett at gmail.com
Sat Nov 7 05:58:12 EST 2009

You might peek at my library HCard (it's on Hackage), it uses  
associated datatypes to allow for a very
general playing-card interface. It was only ever a toy to play w/  
Assoc. types for me, but I imagine it
could be a decent starting point for someone interested in turning it  
into a real EDSL. It's got a
cribbage counter example program bundled with it.


On Nov 7, 2009, at 5:54 AM, Felipe Lessa wrote:

> Hi!
> I would like to know if anybody has already thought of or tried
> to code an EDSL for card games.  Ideally you should be able to
> write the rules the games and get "for free":
> - Game generator: given an input deck, construct the initial
>   state of the game.
> - Random game generator: besides just creating a random deck and
>   using the item above, it should be nice to be able to randomly
>   construct the game from the final positions.  This should
>   guarantee that all random games are solvable.
> - "Hints" generator: IOW list possible moves given a game state.
> - Playable game: probably the EDSL should include at least some
>   information to be able to properly place the cards on the
>   screen.
> - Game solver: this is somewhat harder to do efficiently, but an
>   inneficient one should be doable.
> - Demo mode: related to the above, an auto-play distract-me mode.
> - Tutorial mode: show a screen for each of the rules written?
> - ...anything more?
> Just curious, this looks like a perfect job for an EDSL.  Also, I
> guess anybody trying to do something like this should read
> PySol's code to have some ideas.
> --
> Felipe.
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