roguelike/src/Dungeon.hs

37 lines
889 B
Haskell

module Dungeon where
import Data.Matrix hiding ((<|>))
import Linear.V2
import Data.Tuple
import Data.Maybe
import Control.Applicative ((<|>))
data Cell = Solid
| Empty
deriving (Eq)
instance Show Cell where
show cell = [fromJust (lookup cell cellChars <|> Just '?')]
cellChars :: [(Cell, Char)]
cellChars =
[ (Empty, '.')
, (Solid, '#')
]
newtype Dungeon = Dungeon (Matrix Cell)
instance Show Dungeon where
show (Dungeon m) = unlines . map (concatMap show) $ toLists m
makeDungeonFromFile :: String -> IO Dungeon
makeDungeonFromFile f = do
contents <- readFile f
return $ Dungeon $ fromLists $ map (fromJust . (`lookup` map swap cellChars)) <$> lines contents
dungeonToLists :: Dungeon -> [[Cell]]
dungeonToLists (Dungeon m) = toLists m
getCell :: V2 Int -> Dungeon -> Cell
getCell (V2 x y) (Dungeon m) = fromMaybe Solid (safeGet (y+1) (x+1) m)