-- Mine Sweeper Lab

-- Import section

import Data.Char


-- Types

data Cell   = Covered Int Bool Bool -- number of bombs around ; has bomb ; has flag
            | Uncovered Int -- number of bombs around
            | Selected

data Grid = Grid [[Cell]]


-- Methods

instance Show Cell where
    show ( Covered _ _ hasFlag ) = if hasFlag then "[F]" else "[ ]"
    show ( Uncovered n ) = ['(', intToDigit n, ')']
    show Selected = ">x<"

instance Show Grid where
     show (Grid a) = unlines $ map (unwords . map show) a

-- Functions


-- Testing data

tinyGrid = Grid [
                    [Covered 2 True False, Uncovered 2, Covered 2 True False],
                    [Selected, Uncovered 0, Covered 2 True True]
                ]