CS代考程序代写 {-

{-
Module: Human.

This is the non-AI type of player. It chooses its actions according to the user input, following
the standard notation of the game.
-}
module Players.Human where

import Data.Char
import Data.String

import Types
import Action
import Cell
import Player
import Board

— Translates commands to actions. There are two types:
— * Move commands of the form ‘c2’, meaning ‘move to c2’.
— * Place commands of the form ‘c3v’ meaning ‘place a vertical wall next to c3’ (similarly ‘h’).
commandToAction :: Board -> [Player] -> String -> Int -> Maybe Action
commandToAction _ (p:_) [i, j] _ = Just (Move (currentCell p, (i, digitToInt j)))
commandToAction _ (p:_) [i, j, d] _
| d == ‘h’ = Just (Place (wallTop (i, digitToInt j)))
| d == ‘v’ = Just (Place (wallRight (i, digitToInt j)))
| otherwise = Nothing
commandToAction _ _ _ _ = Nothing

— We build a human player from a name, a starting cell, a number of walls, an array of winning
— positions and ‘commandToAction’.
makeHumanPlayer :: String -> Cell -> Int -> [Cell] -> Player
makeHumanPlayer n c rws wps = Player {
name = n,
turn = 1,
currentCell = c,
remainingWalls = rws,
winningPositions = wps,
isHuman = True,
chooseAction = commandToAction }