refactor(users/glittershark): Rename to grfn r/2485

Rename my //users directory and all places that refer to glittershark to
grfn, including nix references and documentation.

This may require some extra attention inside of gerrit's database after
it lands to allow me to actually push things.

Change-Id: I4728b7ec2c60024392c1c1fa6e0d4a59b3e266fa
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2933
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
Reviewed-by: lukegb <lukegb@tvl.fyi>
Reviewed-by: glittershark <grfn@gws.fyi>

1 files changed, 159 insertions, 0 deletions

diff --git a/users/grfn/xanthous/src/Main.hs b/users/grfn/xanthous/src/Main.hs
new file mode 100644
index 000000000000..dcd31afff9c7
--- /dev/null
+++ b/users/grfn/xanthous/src/Main.hs
@@ -0,0 +1,159 @@
+module Main ( main ) where
+--------------------------------------------------------------------------------
+import           Xanthous.Prelude hiding (finally)
+import           Brick
+import qualified Brick.BChan
+import qualified Graphics.Vty as Vty
+import qualified Options.Applicative as Opt
+import           System.Random
+import           Control.Monad.Random (getRandom)
+import           Control.Exception (finally)
+import           System.Exit (die)
+--------------------------------------------------------------------------------
+import qualified Xanthous.Game as Game
+import           Xanthous.Game.Env (GameEnv(..))
+import           Xanthous.App
+import           Xanthous.Generators
+                 ( GeneratorInput
+                 , parseGeneratorInput
+                 , generateFromInput
+                 , showCells
+                 )
+import qualified Xanthous.Entities.Character as Character
+import           Xanthous.Generators.Util (regions)
+import           Xanthous.Generators.LevelContents
+import           Xanthous.Data (Dimensions, Dimensions'(Dimensions))
+import           Data.Array.IArray ( amap )
+--------------------------------------------------------------------------------
+
+data RunParams = RunParams
+  { seed :: Maybe Int
+  , characterName :: Maybe Text
+  }
+  deriving stock (Show, Eq)
+
+parseRunParams :: Opt.Parser RunParams
+parseRunParams = RunParams
+  <$> optional (Opt.option Opt.auto
+      ( Opt.long "seed"
+      <> Opt.help "Random seed for the game."
+      ))
+  <*> optional (Opt.strOption
+      ( Opt.short 'n'
+      <> Opt.long "name"
+      <> Opt.help
+        ( "Name for the character. If not set on the command line, "
+        <> "will be prompted for at runtime"
+        )
+      ))
+
+data Command
+  = Run RunParams
+  | Load FilePath
+  | Generate GeneratorInput Dimensions (Maybe Int)
+
+parseDimensions :: Opt.Parser Dimensions
+parseDimensions = Dimensions
+  <$> Opt.option Opt.auto
+       ( Opt.short 'w'
+       <> Opt.long "width"
+       <> Opt.metavar "TILES"
+       )
+  <*> Opt.option Opt.auto
+       ( Opt.short 'h'
+       <> Opt.long "height"
+       <> Opt.metavar "TILES"
+       )
+
+
+parseCommand :: Opt.Parser Command
+parseCommand = (<|> Run <$> parseRunParams) $ Opt.subparser
+  $ Opt.command "run"
+      (Opt.info
+       (Run <$> parseRunParams)
+       (Opt.progDesc "Run the game"))
+  <> Opt.command "load"
+      (Opt.info
+       (Load <$> Opt.argument Opt.str (Opt.metavar "FILE"))
+       (Opt.progDesc "Load a saved game"))
+  <> Opt.command "generate"
+      (Opt.info
+       (Generate
+        <$> parseGeneratorInput
+        <*> parseDimensions
+        <*> optional
+            (Opt.option Opt.auto (Opt.long "seed"))
+        <**> Opt.helper
+       )
+       (Opt.progDesc "Generate a sample level"))
+
+optParser :: Opt.ParserInfo Command
+optParser = Opt.info
+  (parseCommand <**> Opt.helper)
+  (Opt.header "Xanthous: a WIP TUI RPG")
+
+thanks :: IO ()
+thanks = putStr "\n\n" >> putStrLn "Thanks for playing Xanthous!"
+
+newGame :: RunParams -> IO ()
+newGame rparams = do
+  gameSeed <- maybe getRandom pure $ seed rparams
+  when (isNothing $ seed rparams)
+    . putStrLn
+    $ "Seed: " <> tshow gameSeed
+  let initialState = Game.initialStateFromSeed gameSeed &~ do
+        for_ (characterName rparams) $ \cn ->
+          Game.character . Character.characterName ?= cn
+  runGame NewGame initialState `finally` do
+    thanks
+    when (isNothing $ seed rparams)
+      . putStrLn
+      $ "Seed: " <> tshow gameSeed
+    putStr "\n\n"
+
+loadGame :: FilePath -> IO ()
+loadGame saveFile = do
+  gameState <- maybe (die "Invalid save file!") pure
+              =<< Game.loadGame . fromStrict <$> readFile @IO saveFile
+  gameState `deepseq` runGame LoadGame gameState
+
+runGame :: RunType -> Game.GameState -> IO ()
+runGame rt gameState = do
+  eventChan <- Brick.BChan.newBChan 10
+  let gameEnv = GameEnv eventChan
+  app <- makeApp gameEnv rt
+  let buildVty = Vty.mkVty Vty.defaultConfig
+  initialVty <- buildVty
+  _game' <- customMain
+    initialVty
+    buildVty
+    (Just eventChan)
+    app
+    gameState
+  pure ()
+
+runGenerate :: GeneratorInput -> Dimensions -> Maybe Int -> IO ()
+runGenerate input dims mSeed = do
+  putStrLn "Generating..."
+  genSeed <- maybe getRandom pure mSeed
+  let randGen = mkStdGen genSeed
+      res = generateFromInput input dims randGen
+      rs = regions $ amap not res
+  when (isNothing mSeed)
+    . putStrLn
+    $ "Seed: " <> tshow genSeed
+  putStr "num regions: "
+  print $ length rs
+  putStr "region lengths: "
+  print $ length <$> rs
+  putStr "character position: "
+  print =<< chooseCharacterPosition res
+  putStrLn $ showCells res
+
+runCommand :: Command -> IO ()
+runCommand (Run runParams) = newGame runParams
+runCommand (Load saveFile) = loadGame saveFile
+runCommand (Generate input dims mSeed) = runGenerate input dims mSeed
+
+main :: IO ()
+main = runCommand =<< Opt.execParser optParser