diff options
author | Aspen Smith <grfn@gws.fyi> | 2024-02-12T03·00-0500 |
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committer | clbot <clbot@tvl.fyi> | 2024-02-14T19·37+0000 |
commit | 82ecd61f5c699cf3af6c4eadf47a1c52b1d696c6 (patch) | |
tree | 429c5e078528000591742ec3211bc768ae913a78 /users/grfn/xanthous/src/Xanthous/App.hs | |
parent | 0ba476a4266015f278f18d74094299de74a5a111 (diff) |
chore(users): grfn -> aspen r/7511
Change-Id: I6c6847fac56f0a9a1a2209792e00a3aec5e672b9 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10809 Autosubmit: aspen <root@gws.fyi> Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI Reviewed-by: lukegb <lukegb@tvl.fyi>
Diffstat (limited to 'users/grfn/xanthous/src/Xanthous/App.hs')
-rw-r--r-- | users/grfn/xanthous/src/Xanthous/App.hs | 647 |
1 files changed, 0 insertions, 647 deletions
diff --git a/users/grfn/xanthous/src/Xanthous/App.hs b/users/grfn/xanthous/src/Xanthous/App.hs deleted file mode 100644 index 426230cdc2fc..000000000000 --- a/users/grfn/xanthous/src/Xanthous/App.hs +++ /dev/null @@ -1,647 +0,0 @@ -{-# LANGUAGE UndecidableInstances #-} -{-# LANGUAGE RecordWildCards #-} --------------------------------------------------------------------------------- -{-# OPTIONS_GHC -Wno-deferred-type-errors #-} -module Xanthous.App - ( makeApp - , RunType(..) - ) where --------------------------------------------------------------------------------- -import Xanthous.Prelude -import Brick hiding (App, halt, continue, raw) -import qualified Brick -import Graphics.Vty.Attributes (defAttr) -import Graphics.Vty.Input.Events (Event(EvKey)) -import Control.Monad.State (get, gets) -import Control.Monad.State.Class (modify) -import Data.Aeson (object, ToJSON) -import qualified Data.Aeson as A -import qualified Data.Vector as V -import System.Exit -import System.Directory (doesFileExist) -import Data.List.NonEmpty (NonEmpty(..)) -import Data.Vector.Lens (toVectorOf) --------------------------------------------------------------------------------- -import Xanthous.App.Common -import Xanthous.App.Time -import Xanthous.App.Prompt -import Xanthous.App.Autocommands -import Xanthous.Command -import Xanthous.Data - ( move - , Dimensions'(Dimensions) - , positioned - , position - , Position - , (|*|) - , Tiles(..), Hitpoints, fromScalar - ) -import Xanthous.Data.App (ResourceName, Panel(..), AppEvent(..)) -import qualified Xanthous.Data.EntityMap as EntityMap -import Xanthous.Data.Levels (prevLevel, nextLevel) -import qualified Xanthous.Data.Levels as Levels -import Xanthous.Data.Entities (blocksObject) -import Xanthous.Game -import Xanthous.Game.State -import Xanthous.Game.Env -import Xanthous.Game.Draw (drawGame) -import Xanthous.Game.Prompt hiding (Fire) -import qualified Xanthous.Messages as Messages -import Xanthous.Random -import Xanthous.Util (removeVectorIndex, useListOf) -import Xanthous.Util.Inflection (toSentence) -import Xanthous.Physics (throwDistance, bluntThrowDamage) -import Xanthous.Data.EntityMap.Graphics (lineOfSight) -import Xanthous.Data.EntityMap (EntityID) --------------------------------------------------------------------------------- -import Xanthous.Entities.Common - ( InventoryPosition, describeInventoryPosition, backpack - , wieldableItem, wieldedItems, wielded, itemsWithPosition - , removeItemFromPosition, asWieldedItem - , wieldedItem, items, Hand (..), describeHand, wieldInHand - , WieldedItem, Wielded (..) - ) -import qualified Xanthous.Entities.Character as Character -import Xanthous.Entities.Character hiding (pickUpItem) -import Xanthous.Entities.Item (Item, weight) -import qualified Xanthous.Entities.Item as Item -import Xanthous.Entities.Creature (Creature) -import qualified Xanthous.Entities.Creature as Creature -import Xanthous.Entities.Environment - (Door, open, closed, locked, GroundMessage(..), Staircase(..)) -import Xanthous.Entities.RawTypes - ( edible, eatMessage, hitpointsHealed - , attackMessage - ) -import Xanthous.Generators.Level -import qualified Xanthous.Generators.Level.CaveAutomata as CaveAutomata -import qualified Xanthous.Generators.Level.Dungeon as Dungeon --------------------------------------------------------------------------------- - -type App = Brick.App GameState AppEvent ResourceName - -data RunType = NewGame | LoadGame FilePath - deriving stock (Eq) - -makeApp :: GameEnv -> RunType -> IO App -makeApp env rt = pure $ Brick.App - { appDraw = drawGame - , appChooseCursor = const headMay - , appHandleEvent = \game event -> runAppM (handleEvent event) env game - , appStartEvent = case rt of - NewGame -> runAppM (startEvent >> get) env - LoadGame save -> pure . (savefile ?~ save) - , appAttrMap = const $ attrMap defAttr [] - } - -runAppM :: AppM a -> GameEnv -> GameState -> EventM ResourceName a -runAppM appm ge = fmap fst . runAppT appm ge - -startEvent :: AppM () -startEvent = do - initLevel - modify updateCharacterVision - use (character . characterName) >>= \case - Nothing -> prompt_ @'StringPrompt ["character", "namePrompt"] Uncancellable - $ \(StringResult s) -> do - character . characterName ?= s - say ["welcome"] =<< use character - Just n -> say ["welcome"] $ object [ "characterName" A..= n ] - -initLevel :: AppM () -initLevel = do - level <- genLevel 0 - entities <>= levelToEntityMap level - characterPosition .= level ^. levelCharacterPosition - --------------------------------------------------------------------------------- - -handleEvent :: BrickEvent ResourceName AppEvent -> AppM (Next GameState) -handleEvent ev = use promptState >>= \case - NoPrompt -> handleNoPromptEvent ev - WaitingPrompt msg pr -> handlePromptEvent msg pr ev - - -handleNoPromptEvent :: BrickEvent ResourceName AppEvent -> AppM (Next GameState) -handleNoPromptEvent (VtyEvent (EvKey k mods)) - | Just command <- commandFromKey k mods - = do messageHistory %= nextTurn - cancelAutocommand - handleCommand command -handleNoPromptEvent (AppEvent AutoContinue) = do - preuse (autocommand . _ActiveAutocommand . _1) >>= traverse_ autoStep - continue -handleNoPromptEvent _ = continue - -handleCommand :: Command -> AppM (Next GameState) -handleCommand Quit = confirm_ ["quit", "confirm"] (liftIO exitSuccess) >> continue - -handleCommand Help = showPanel HelpPanel >> continue - -handleCommand (Move dir) = do - newPos <- uses characterPosition $ move dir - collisionAt newPos >>= \case - Nothing -> do - characterPosition .= newPos - stepGameBy =<< uses (character . speed) (|*| Tiles 1) - describeEntitiesAt newPos - Just Combat -> attackAt newPos - Just Stop -> pure () - continue - -handleCommand PickUp = do - pos <- use characterPosition - uses entities (entitiesAtPositionWithType @Item pos) >>= \case - [] -> say_ ["pickUp", "nothingToPickUp"] - [item] -> pickUpItem item - items' -> - menu_ ["pickUp", "menu"] Cancellable (entityMenu_ items') - $ \(MenuResult item) -> pickUpItem item - continue - where - pickUpItem (itemID, item) = do - character %= Character.pickUpItem item - entities . at itemID .= Nothing - say ["pickUp", "pickUp"] $ object [ "item" A..= item ] - stepGameBy 100 -- TODO - -handleCommand Drop = do - takeItemFromInventory_ ["drop", "menu"] Cancellable id - (say_ ["drop", "nothing"]) - $ \(MenuResult item) -> do - entitiesAtCharacter %= (SomeEntity item <|) - say ["drop", "dropped"] $ object [ "item" A..= item ] - continue - -handleCommand PreviousMessage = do - messageHistory %= previousMessage - continue - -handleCommand Open = do - prompt_ @'DirectionPrompt ["open", "prompt"] Cancellable - $ \(DirectionResult dir) -> do - pos <- move dir <$> use characterPosition - doors <- uses entities $ entitiesAtPositionWithType @Door pos - if | null doors -> say_ ["open", "nothingToOpen"] - | any (view $ _2 . locked) doors -> say_ ["open", "locked"] - | all (view $ _2 . open) doors -> say_ ["open", "alreadyOpen"] - | otherwise -> do - for_ doors $ \(eid, _) -> - entities . ix eid . positioned . _SomeEntity . open .= True - say_ ["open", "success"] - pure () - stepGame -- TODO - continue - -handleCommand Close = do - prompt_ @'DirectionPrompt ["close", "prompt"] Cancellable - $ \(DirectionResult dir) -> do - pos <- move dir <$> use characterPosition - (nonDoors, doors) <- uses entities - $ partitionEithers - . toList - . map ( (matching . aside $ _SomeEntity @Door) - . over _2 (view positioned) - ) - . EntityMap.atPositionWithIDs pos - if | null doors -> say_ ["close", "nothingToClose"] - | all (view $ _2 . closed) doors -> say_ ["close", "alreadyClosed"] - | any (view blocksObject . entityAttributes . snd) nonDoors -> - say ["close", "blocked"] - $ object [ "entityDescriptions" - A..= ( toSentence - . map description - . filter (view blocksObject . entityAttributes) - . map snd - ) nonDoors - , "blockOrBlocks" - A..= ( if length nonDoors == 1 - then "blocks" - else "block" - :: Text) - ] - | otherwise -> do - for_ doors $ \(eid, _) -> - entities . ix eid . positioned . _SomeEntity . closed .= True - for_ nonDoors $ \(eid, _) -> - entities . ix eid . position %= move dir - say_ ["close", "success"] - pure () - stepGame -- TODO - continue - -handleCommand Look = do - prompt_ @'PointOnMap ["look", "prompt"] Cancellable - $ \(PointOnMapResult pos) -> revealedEntitiesAtPosition pos >>= \case - Empty -> say_ ["look", "nothing"] - ents -> describeEntities ents - continue - -handleCommand Wait = stepGame >> continue - -handleCommand Eat = do - uses (character . inventory . backpack) - (V.mapMaybe (\item -> (item,) <$> item ^. Item.itemType . edible)) - >>= \case - Empty -> say_ ["eat", "noFood"] - food -> - let foodMenuItem idx (item, edibleItem) - = ( item ^. Item.itemType . char . char - , MenuOption (description item) (idx, item, edibleItem)) - -- TODO refactor to use entityMenu_ - menuItems = mkMenuItems $ imap foodMenuItem food - in menu_ ["eat", "menuPrompt"] Cancellable menuItems - $ \(MenuResult (idx, item, edibleItem)) -> do - character . inventory . backpack %= removeVectorIndex idx - let msg = fromMaybe (Messages.lookup ["eat", "eat"]) - $ edibleItem ^. eatMessage - character . characterHitpoints' += - edibleItem ^. hitpointsHealed . to fromIntegral - message msg $ object ["item" A..= item] - stepGame -- TODO - continue - -handleCommand Read = do - -- TODO allow reading things in the inventory (combo direction+menu prompt?) - prompt_ @'DirectionPrompt ["read", "prompt"] Cancellable - $ \(DirectionResult dir) -> do - pos <- uses characterPosition $ move dir - uses entities - (fmap snd . entitiesAtPositionWithType @GroundMessage pos) >>= \case - Empty -> say_ ["read", "nothing"] - GroundMessage msg :< Empty -> - say ["read", "result"] $ object ["message" A..= msg] - msgs -> - let readAndContinue Empty = pure () - readAndContinue (msg :< msgs') = - prompt @'Continue - ["read", "result"] - (object ["message" A..= msg]) - Cancellable - . const - $ readAndContinue msgs' - readAndContinue _ = error "this is total" - in readAndContinue msgs - continue - -handleCommand ShowInventory = showPanel InventoryPanel >> continue - -handleCommand DescribeInventory = do - selectItemFromInventory_ ["inventory", "describe", "select"] Cancellable id - (say_ ["inventory", "describe", "nothing"]) - $ \(MenuResult (invPos, item)) -> showPanel . ItemDescriptionPanel - $ Item.fullDescription item - <> "\n\n" <> describeInventoryPosition invPos - continue - - -handleCommand Wield = do - hs <- use $ character . inventory . wielded - selectItem $ \(MenuResult (invPos, (item :: WieldedItem))) -> do - selectHand hs $ \(MenuResult hand) -> do - character . inventory - %= removeItemFromPosition invPos (asWieldedItem # item) - prevItems <- character . inventory . wielded %%= wieldInHand hand item - character . inventory . backpack - <>= fromList (map (view wieldedItem) prevItems) - say ["wield", "wielded"] $ object [ "item" A..= item - , "hand" A..= describeHand hand - ] - continue - where - selectItem = - selectItemFromInventory_ ["wield", "menu"] Cancellable asWieldedItem - (say_ ["wield", "nothing"]) - selectHand hs = menu_ ["wield", "hand"] Cancellable $ handsMenu hs - itemsInHand (Hands i _) LeftHand = toList i - itemsInHand (DoubleHanded _) LeftHand = [] - itemsInHand (Hands _ i) RightHand = toList i - itemsInHand (DoubleHanded _) RightHand = [] - itemsInHand (Hands l r) BothHands = toList l <> toList r - itemsInHand (DoubleHanded i) BothHands = [i] - describeItems [] = "" - describeItems is - = " (currently holding " - <> (intercalate " and" $ map (view $ wieldedItem . to description) is) - <> ")" - handsMenu hs = mapFromList - . map (second $ \hand -> - MenuOption - ( describeHand hand - <> describeItems (itemsInHand hs hand) - ) - hand - ) - $ [ ('l', LeftHand) - , ('r', RightHand) - , ('b', BothHands) - ] - -handleCommand Fire = do - selectItemFromInventory_ ["fire", "menu"] Cancellable id - (say_ ["fire", "nothing"]) - $ \(MenuResult (invPos, item)) -> - let wt = weight item - dist = throwDistance wt - dam = bluntThrowDamage wt - in if dist < fromScalar 1 - then say_ ["fire", "zeroRange"] - else firePrompt_ ["fire", "target"] Cancellable dist $ - \(FireResult targetPos) -> do - charPos <- use characterPosition - mTarget <- uses entities $ firstEnemy . lineOfSight charPos targetPos - case mTarget of - Just target -> do - creature' <- damageCreature target dam - unless (Creature.isDead creature') $ - let msgPath = ["fire", "fired"] <> [if dam == 0 - then "noDamage" - else "someDamage"] - in say msgPath $ object [ "item" A..= item - , "creature" A..= creature' - ] - Nothing -> - say ["fire", "fired", "noTarget"] $ object [ "item" A..= item ] - character . inventory %= removeItemFromPosition invPos item - entities . EntityMap.atPosition targetPos %= (SomeEntity item <|) - stepGame -- TODO(grfn): should this be based on distance? - continue - where - firstEnemy - :: [(Position, Vector (EntityID, SomeEntity))] - -> Maybe (EntityID, Creature) - firstEnemy los = - let enemies = los >>= \(_, es) -> toList $ headMay es - in enemies ^? folded . below _SomeEntity - -handleCommand Save = - view (config . disableSaving) >>= \case - True -> say_ ["save", "disabled"] >> continue - False -> do - -- TODO default save locations / config file? - use savefile >>= \case - Just filepath -> - stringPromptWithDefault_ - ["save", "location"] - Cancellable - (pack filepath) - promptCallback - Nothing -> prompt_ @'StringPrompt ["save", "location"] Cancellable promptCallback - continue - where - promptCallback :: PromptResult 'StringPrompt -> AppM () - promptCallback (StringResult filename) = do - sf <- use savefile - exists <- liftIO . doesFileExist $ unpack filename - if exists && sf /= Just (unpack filename) - then confirm ["save", "overwrite"] (object ["filename" A..= filename]) - $ doSave filename - else doSave filename - doSave filename = do - src <- gets saveGame - lift . liftIO $ do - writeFile (unpack filename) $ toStrict src - exitSuccess - -handleCommand GoUp = do - hasStairs <- uses entitiesAtCharacter $ elem (SomeEntity UpStaircase) - if hasStairs - then uses levels prevLevel >>= \case - Just levs' -> do - cEID <- use characterEntityID - pCharacter <- entities . at cEID <<.= Nothing - levels .= levs' - charPos <- use characterPosition - entities . at cEID .= pCharacter - characterPosition .= charPos - Nothing -> - -- TODO in nethack, this leaves the game. Maybe something similar here? - say_ ["cant", "goUp"] - else say_ ["cant", "goUp"] - - continue - -handleCommand GoDown = do - hasStairs <- uses entitiesAtCharacter $ elem (SomeEntity DownStaircase) - - if hasStairs - then do - levs <- use levels - let newLevelNum = Levels.pos levs + 1 - levs' <- nextLevel (levelToGameLevel <$> genLevel newLevelNum) levs - cEID <- use characterEntityID - pCharacter <- entities . at cEID <<.= Nothing - levels .= levs' - entities . at cEID .= pCharacter - characterPosition .= extract levs' ^. upStaircasePosition - else say_ ["cant", "goDown"] - - continue - -handleCommand (StartAutoMove dir) = do - runAutocommand $ AutoMove dir - continue - -handleCommand Rest = do - say_ ["autocommands", "resting"] - runAutocommand AutoRest - continue - --- - -handleCommand ToggleRevealAll = do - val <- debugState . allRevealed <%= not - say ["debug", "toggleRevealAll"] $ object [ "revealAll" A..= val ] - continue - --------------------------------------------------------------------------------- -attackAt :: Position -> AppM () -attackAt pos = - uses entities (entitiesAtPositionWithType @Creature pos) >>= \case - Empty -> say_ ["combat", "nothingToAttack"] - (creature :< Empty) -> attackCreature creature - creatures -> - menu_ ["combat", "menu"] Cancellable (entityMenu_ creatures) - $ \(MenuResult creature) -> attackCreature creature - where - attackCreature creature = do - charDamage <- uses character characterDamage - creature' <- damageCreature creature charDamage - unless (Creature.isDead creature') $ writeAttackMessage creature' - whenM (uses character $ isNothing . weapon) handleFists - stepGame - weapon chr = chr ^? inventory . wielded . wieldedItems . wieldableItem - writeAttackMessage creature = do - let params = object ["creature" A..= creature] - attackMessages <- uses character getAttackMessages - msg <- intercalate " and " <$> for attackMessages (`Messages.render` params) - writeMessage $ "You " <> msg - getAttackMessages chr = - case chr ^.. inventory . wielded . wieldedItems . wieldableItem of - [] -> [Messages.lookup ["combat", "hit", "fists"]] - is -> - is - <&> \wi -> - fromMaybe (Messages.lookup ["combat", "hit", "generic"]) - $ wi ^. attackMessage - - - handleFists = do - damageChance <- use $ character . body . knuckles . to fistDamageChance - whenM (chance damageChance) $ do - damageAmount <- use $ character . body . knuckles . to fistfightingDamage - say_ [ "combat" , if damageAmount > 1 - then "fistExtraSelfDamage" - else "fistSelfDamage" ] - character %= Character.damage damageAmount - character . body . knuckles %= damageKnuckles - -damageCreature :: (EntityID, Creature) -> Hitpoints -> AppM Creature -damageCreature (creatureID, creature) dam = do - let creature' = Creature.damage dam creature - msgParams = object ["creature" A..= creature'] - if Creature.isDead creature' - then do - say ["combat", "killed"] msgParams - floorItems <- useListOf - $ entities - . ix creatureID - . positioned - . _SomeEntity @Creature - . inventory - . items - mCreaturePos <- preuse $ entities . ix creatureID . position - entities . at creatureID .= Nothing - for_ mCreaturePos $ \creaturePos -> - entities . EntityMap.atPosition creaturePos - %= (<> fromList (SomeEntity <$> floorItems)) - else entities . ix creatureID . positioned .= SomeEntity creature' - pure creature' - - -entityMenu_ - :: (Comonad w, Entity entity) - => [w entity] - -> Map Char (MenuOption (w entity)) -entityMenu_ = mkMenuItems @[_] . map entityMenuItem - where - entityMenuItem wentity - = let entity = extract wentity - in (entityMenuChar entity, MenuOption (description entity) wentity) - - -entityMenuChar :: Entity a => a -> Char -entityMenuChar entity - = let ec = entityChar entity ^. char - in if ec `elem` (['a'..'z'] ++ ['A'..'Z']) - then ec - else 'a' - --- | Prompt with an item to select out of the inventory and call callback with --- it -selectItemFromInventory - :: forall item params. - (ToJSON params) - => [Text] -- ^ Menu message - -> params -- ^ Menu message params - -> PromptCancellable -- ^ Is the menu cancellable? - -> Prism' Item item -- ^ Attach some extra information to the item, in a - -- recoverable fashion. Prism vs iso so we can discard - -- items. - -> AppM () -- ^ Action to take if there are no items matching - -> (PromptResult ('Menu (InventoryPosition, item)) -> AppM ()) - -> AppM () -selectItemFromInventory msgPath msgParams cancellable extraInfo onEmpty cb = do - uses (character . inventory) - (V.mapMaybe (_2 $ preview extraInfo) . toVectorOf itemsWithPosition) - >>= \case - Empty -> onEmpty - items' -> menu msgPath msgParams cancellable (itemMenu items') cb - where - itemMenu = mkMenuItems . map itemMenuItem - itemMenuItem (invPos, extraInfoItem) = - let item = extraInfo # extraInfoItem - in ( entityMenuChar item - , MenuOption - (description item <> " (" <> describeInventoryPosition invPos <> ")") - (invPos, extraInfoItem) - ) - --- | Prompt with an item to select out of the inventory and call callback with --- it -selectItemFromInventory_ - :: forall item. - [Text] -- ^ Menu message - -> PromptCancellable -- ^ Is the menu cancellable? - -> Prism' Item item -- ^ Attach some extra information to the item, in a - -- recoverable fashion. Prism vs iso so we can discard - -- items. - -> AppM () -- ^ Action to take if there are no items matching - -> (PromptResult ('Menu (InventoryPosition, item)) -> AppM ()) - -> AppM () -selectItemFromInventory_ msgPath = selectItemFromInventory msgPath () - --- | Prompt with an item to select out of the inventory, remove it from the --- inventory, and call callback with it -takeItemFromInventory - :: forall item params. - (ToJSON params) - => [Text] -- ^ Menu message - -> params -- ^ Menu message params - -> PromptCancellable -- ^ Is the menu cancellable? - -> Prism' Item item -- ^ Attach some extra information to the item, in a - -- recoverable fashion. Prism vs iso so we can discard - -- items. - -> AppM () -- ^ Action to take if there are no items matching - -> (PromptResult ('Menu item) -> AppM ()) - -> AppM () -takeItemFromInventory msgPath msgParams cancellable extraInfo onEmpty cb = - selectItemFromInventory msgPath msgParams cancellable extraInfo onEmpty - $ \(MenuResult (invPos, item)) -> do - character . inventory - %= removeItemFromPosition invPos (item ^. re extraInfo) - cb $ MenuResult item - -takeItemFromInventory_ - :: forall item. - [Text] -- ^ Menu message - -> PromptCancellable -- ^ Is the menu cancellable? - -> Prism' Item item -- ^ Attach some extra information to the item, in a - -- recoverable fashion. Prism vs iso so we can discard - -- items. - -> AppM () -- ^ Action to take if there are no items matching - -> (PromptResult ('Menu item) -> AppM ()) - -> AppM () -takeItemFromInventory_ msgPath = takeItemFromInventory msgPath () - --- entityMenu :: Entity entity => [entity] -> Map Char (MenuOption entity) --- entityMenu = map (map runIdentity) . entityMenu_ . fmap Identity - -showPanel :: Panel -> AppM () -showPanel panel = do - activePanel ?= panel - prompt_ @'Continue ["generic", "continue"] Uncancellable - . const - $ activePanel .= Nothing - --------------------------------------------------------------------------------- - -genLevel - :: Word -- ^ Level number, starting at 0 - -> AppM Level -genLevel num = do - let dims = Dimensions 80 80 - generator <- choose $ CaveAutomata :| [Dungeon] - let - doGen = case generator of - CaveAutomata -> generateLevel SCaveAutomata CaveAutomata.defaultParams - Dungeon -> generateLevel SDungeon Dungeon.defaultParams - level <- doGen dims num - pure $!! level - -levelToGameLevel :: Level -> GameLevel -levelToGameLevel level = - let _levelEntities = levelToEntityMap level - _upStaircasePosition = level ^. levelCharacterPosition - _levelRevealedPositions = mempty - in GameLevel {..} |