maleghast-engine/app/Main.hs

82 lines
2.5 KiB
Haskell

module Main (main) where
import System.IO (hFlush, stdout)
import Util (note)
import GameModel (Point(..), Player(..), newBoard, BaseStats, BoardState, EnvTile (..), DieFace, bestOrWorst)
import Units.Carcass (gunwight)
import Units.Debug (basic)
import GameLogic (buildChoiceTree, ChoiceTree(..), ChoiceTree'(..), makeChoice, ctTree)
import Text.Read (readMaybe)
import qualified Control.Monad
import Control.Monad (replicateM, void)
import System.Random (randomIO)
initialPlacement :: Point -> Maybe (Player, BaseStats)
initialPlacement = flip lookup [(Point 5, (Max, basic)), (Point 0, (Max, gunwight)), (Point 23, (Min, basic)), (Point 22, (Min, gunwight))]
initialTerrain :: Point -> [EnvTile]
initialTerrain (Point 4) = [Rough]
initialTerrain (Point 5) = [Stairs]
initialTerrain (Point 6) = [Elevation]
initialTerrain (Point 7) = [Elevation]
initialTerrain (Point 8) = [Stairs, Hazard]
initialTerrain (Point 11) = [Stairs, Rough]
initialTerrain (Point 12) = [Hazard]
initialTerrain (Point 17) = [Wall]
initialTerrain (Point 18) = [Wall]
initialTerrain (Point 20) = [Rough, Hazard]
initialTerrain _ = []
initialBoard :: BoardState
initialBoard = newBoard 5 5 initialPlacement initialTerrain
choiceTree :: ChoiceTree
choiceTree = buildChoiceTree initialBoard
readPrompt :: Read a => String -> (a -> Either String b) -> IO b
readPrompt prompt validate = do
putStr prompt
hFlush stdout
line <- getLine
case readMaybe line of
Just input -> case validate input of
Right out -> return out
Left error -> do
putStrLn error
putChar '\n'
readPrompt prompt validate
Nothing -> do
putStrLn "Malformed input\n"
readPrompt prompt validate
roll :: IO DieFace
roll = do
getLine
result <- randomIO
putStr $ show result
hFlush stdout
return result
runGame :: ChoiceTree -> IO (Maybe Player)
runGame tree = do
print tree
case tree of
ChoiceTree ct@(Node {}) -> do
choiceMade <- readPrompt "=> " (note "Out of range" . flip makeChoice ct)
runGame choiceMade
ChoiceTree ct@(Random nDice pos outcomes) -> do
putStr "[Press enter to roll]"
hFlush stdout
dice <- replicateM (fromIntegral nDice) roll
putChar '\n'
let result = bestOrWorst pos dice
putStr "Done! Final result: "
print result
putStrLn "[Press enter to continue]"
getLine
runGame $ ctTree $ outcomes result
ChoiceTree ct@(EndOfGame winner) -> return winner
main :: IO ()
main = void (runGame choiceTree)