hfiar-0.1.0: Four in a Row in Haskell!! Source code Contents Index

HFiaR

Contents Monad controls Types Actions

Description

This module defines the HFiaR monad and all the actions you can perform in it

Synopsis

data HFiaRT m a type HFiaR = HFiaRT IO play :: Monad m => HFiaRT m a -> m a data Player = Red | Green data HFiaRError = GameEnded | GameNotEnded | InvalidColumn | FullColumn data HFiaRResult = Tie | WonBy Player dropIn :: Int -> HFiaR (Either HFiaRError ()) currentPlayer :: HFiaR (Either HFiaRError Player) board :: HFiaR [[Player]] result :: HFiaR (Either HFiaRError HFiaRResult)

Monad controls

data HFiaRT m a Source

Generic HFiaRT type Instances MonadTrans HFiaRT Monad m => MonadState Game (HFiaRT m) Monad m => Monad (HFiaRT m) MonadIO m => MonadIO (HFiaRT m)

type HFiaR = HFiaRT IO Source

Specialized HFiaR IO monadic type

play :: Monad m => HFiaRT m a -> m a Source

Run the monad actions and return the result of them

Types

data Player Source

Posible tile / player colours Constructors Red Green Instances Eq Player Show Player

data HFiaRError Source

Posible errors in the HFiaR Monad Constructors GameEnded GameNotEnded InvalidColumn FullColumn Instances Eq HFiaRError Show HFiaRError

data HFiaRResult Source

Posible results for the game Constructors Tie WonBy Player Instances Eq HFiaRResult Show HFiaRResult

Actions

dropIn Source

:: Int Column number -> HFiaR (Either HFiaRError ()) Drop a tile in a column

currentPlayer :: HFiaR (Either HFiaRError Player) Source

Player who's supposed to play the next tile

board :: HFiaR [[Player]] Source

Current board distribution

result :: HFiaR (Either HFiaRError HFiaRResult) Source

If the game ended, returns the result of it

Produced by Haddock version 2.7.2