diff options
Diffstat (limited to 'users/grfn/xanthous/src/Xanthous/Data')
| -rw-r--r-- | users/grfn/xanthous/src/Xanthous/Data/App.hs | 45 | ||||
| -rw-r--r-- | users/grfn/xanthous/src/Xanthous/Data/Entities.hs | 68 | ||||
| -rw-r--r-- | users/grfn/xanthous/src/Xanthous/Data/EntityChar.hs | 56 | ||||
| -rw-r--r-- | users/grfn/xanthous/src/Xanthous/Data/EntityMap.hs | 277 | ||||
| -rw-r--r-- | users/grfn/xanthous/src/Xanthous/Data/EntityMap/Graphics.hs | 72 | ||||
| -rw-r--r-- | users/grfn/xanthous/src/Xanthous/Data/Levels.hs | 180 | ||||
| -rw-r--r-- | users/grfn/xanthous/src/Xanthous/Data/Memo.hs | 98 | ||||
| -rw-r--r-- | users/grfn/xanthous/src/Xanthous/Data/NestedMap.hs | 227 | ||||
| -rw-r--r-- | users/grfn/xanthous/src/Xanthous/Data/VectorBag.hs | 100 |
9 files changed, 1123 insertions, 0 deletions
diff --git a/users/grfn/xanthous/src/Xanthous/Data/App.hs b/users/grfn/xanthous/src/Xanthous/Data/App.hs new file mode 100644 index 000000000000..a2cfcb8001cb --- /dev/null +++ b/users/grfn/xanthous/src/Xanthous/Data/App.hs @@ -0,0 +1,45 @@ +-------------------------------------------------------------------------------- +module Xanthous.Data.App + ( Panel(..) + , ResourceName(..) + , AppEvent(..) + ) where +-------------------------------------------------------------------------------- +import Xanthous.Prelude +-------------------------------------------------------------------------------- +import Test.QuickCheck +import Test.QuickCheck.Instances.Text () +import Data.Aeson (ToJSON, FromJSON) +-------------------------------------------------------------------------------- +import Xanthous.Util.QuickCheck +-------------------------------------------------------------------------------- + +-- | Enum for "panels" displayed in the game's UI. +data Panel + = -- | A panel displaying the character's inventory + InventoryPanel + | -- | A panel describing an item in the inventory in detail + -- + -- The argument is the full description of the item + ItemDescriptionPanel Text + deriving stock (Show, Eq, Ord, Generic) + deriving anyclass (NFData, CoArbitrary, Function, ToJSON, FromJSON) + deriving Arbitrary via GenericArbitrary Panel + + +data ResourceName + = MapViewport -- ^ The main viewport where we display the game content + | Character -- ^ The character + | MessageBox -- ^ The box where we display messages to the user + | Prompt -- ^ The game's prompt + | Panel Panel -- ^ A panel in the game + deriving stock (Show, Eq, Ord, Generic) + deriving anyclass (NFData, CoArbitrary, Function, ToJSON, FromJSON) + deriving Arbitrary via GenericArbitrary ResourceName + +data AppEvent + = AutoContinue -- ^ Continue whatever autocommand has been requested by the + -- user + deriving stock (Show, Eq, Ord, Generic) + deriving anyclass (NFData, CoArbitrary, Function, ToJSON, FromJSON) + deriving Arbitrary via GenericArbitrary AppEvent diff --git a/users/grfn/xanthous/src/Xanthous/Data/Entities.hs b/users/grfn/xanthous/src/Xanthous/Data/Entities.hs new file mode 100644 index 000000000000..39953410f2f3 --- /dev/null +++ b/users/grfn/xanthous/src/Xanthous/Data/Entities.hs @@ -0,0 +1,68 @@ +{-# LANGUAGE TemplateHaskell #-} +{-# LANGUAGE RecordWildCards #-} +-------------------------------------------------------------------------------- +module Xanthous.Data.Entities + ( -- * Collisions + Collision(..) + , _Stop + , _Combat + -- * Entity Attributes + , EntityAttributes(..) + , blocksVision + , blocksObject + , collision + , defaultEntityAttributes + ) where +-------------------------------------------------------------------------------- +import Xanthous.Prelude +-------------------------------------------------------------------------------- +import Data.Aeson (ToJSON(..), FromJSON(..), (.:?), (.!=), withObject) +import Data.Aeson.Generic.DerivingVia +import Xanthous.Util.QuickCheck (GenericArbitrary(..)) +import Test.QuickCheck +-------------------------------------------------------------------------------- + +data Collision + = Stop -- ^ Can't move through this + | Combat -- ^ Moving into this equates to hitting it with a stick + deriving stock (Show, Eq, Ord, Generic) + deriving anyclass (NFData, CoArbitrary, Function) + deriving Arbitrary via GenericArbitrary Collision + deriving (ToJSON, FromJSON) + via WithOptions '[ AllNullaryToStringTag 'True ] + Collision +makePrisms ''Collision + +-- | Attributes of an entity +data EntityAttributes = EntityAttributes + { _blocksVision :: Bool + -- | Does this entity block a large object from being put in the same tile as + -- it - eg a a door being closed on it + , _blocksObject :: Bool + -- | What type of collision happens when moving into this entity? + , _collision :: Collision + } + deriving stock (Show, Eq, Ord, Generic) + deriving anyclass (NFData, CoArbitrary, Function) + deriving Arbitrary via GenericArbitrary EntityAttributes + deriving (ToJSON) + via WithOptions '[ FieldLabelModifier '[Drop 1] ] + EntityAttributes +makeLenses ''EntityAttributes + +instance FromJSON EntityAttributes where + parseJSON = withObject "EntityAttributes" $ \o -> do + _blocksVision <- o .:? "blocksVision" + .!= _blocksVision defaultEntityAttributes + _blocksObject <- o .:? "blocksObject" + .!= _blocksObject defaultEntityAttributes + _collision <- o .:? "collision" + .!= _collision defaultEntityAttributes + pure EntityAttributes {..} + +defaultEntityAttributes :: EntityAttributes +defaultEntityAttributes = EntityAttributes + { _blocksVision = False + , _blocksObject = False + , _collision = Stop + } diff --git a/users/grfn/xanthous/src/Xanthous/Data/EntityChar.hs b/users/grfn/xanthous/src/Xanthous/Data/EntityChar.hs new file mode 100644 index 000000000000..855a3462daee --- /dev/null +++ b/users/grfn/xanthous/src/Xanthous/Data/EntityChar.hs @@ -0,0 +1,56 @@ +{-# LANGUAGE RoleAnnotations #-} +{-# LANGUAGE RecordWildCards #-} +{-# LANGUAGE UndecidableInstances #-} +{-# LANGUAGE GADTs #-} +{-# LANGUAGE AllowAmbiguousTypes #-} +{-# LANGUAGE TemplateHaskell #-} +-------------------------------------------------------------------------------- +module Xanthous.Data.EntityChar + ( EntityChar(..) + , HasChar(..) + , HasStyle(..) + ) where +-------------------------------------------------------------------------------- +import Xanthous.Prelude hiding ((.=)) +-------------------------------------------------------------------------------- +import qualified Graphics.Vty.Attributes as Vty +import Test.QuickCheck +import Data.Aeson +-------------------------------------------------------------------------------- +import Xanthous.Orphans () +import Xanthous.Util.QuickCheck (GenericArbitrary(..)) +-------------------------------------------------------------------------------- + + +class HasChar s a | s -> a where + char :: Lens' s a + {-# MINIMAL char #-} + +data EntityChar = EntityChar + { _char :: Char + , _style :: Vty.Attr + } + deriving stock (Show, Eq, Ord, Generic) + deriving anyclass (NFData, CoArbitrary, Function) + deriving Arbitrary via GenericArbitrary EntityChar +makeFieldsNoPrefix ''EntityChar + +instance FromJSON EntityChar where + parseJSON (String (chr :< Empty)) = pure $ EntityChar chr Vty.defAttr + parseJSON (Object o) = do + (EntityChar _char _) <- o .: "char" + _style <- o .:? "style" .!= Vty.defAttr + pure EntityChar {..} + parseJSON _ = fail "Invalid type, expected string or object" + +instance ToJSON EntityChar where + toJSON (EntityChar chr styl) + | styl == Vty.defAttr = String $ chr <| Empty + | otherwise = object + [ "char" .= chr + , "style" .= styl + ] + +instance IsString EntityChar where + fromString [ch] = EntityChar ch Vty.defAttr + fromString _ = error "Entity char must only be a single character" diff --git a/users/grfn/xanthous/src/Xanthous/Data/EntityMap.hs b/users/grfn/xanthous/src/Xanthous/Data/EntityMap.hs new file mode 100644 index 000000000000..1d9c4d46cdc9 --- /dev/null +++ b/users/grfn/xanthous/src/Xanthous/Data/EntityMap.hs @@ -0,0 +1,277 @@ +{-# LANGUAGE UndecidableInstances #-} +{-# LANGUAGE RecordWildCards #-} +{-# LANGUAGE DeriveTraversable #-} +{-# LANGUAGE TupleSections #-} +{-# LANGUAGE TemplateHaskell #-} +{-# LANGUAGE StandaloneDeriving #-} +{-# LANGUAGE DeriveFunctor #-} +-------------------------------------------------------------------------------- +module Xanthous.Data.EntityMap + ( EntityMap + , _EntityMap + , EntityID + , emptyEntityMap + , insertAt + , insertAtReturningID + , fromEIDsAndPositioned + , toEIDsAndPositioned + , atPosition + , atPositionWithIDs + , positions + , lookup + , lookupWithPosition + , positionOf + -- , positionedEntities + , neighbors + , Deduplicate(..) + + -- * debug + , byID + , byPosition + , lastID + + ) where +-------------------------------------------------------------------------------- +import Xanthous.Prelude hiding (lookup) +import Xanthous.Data + ( Position + , Positioned(..) + , positioned + , Neighbors(..) + , neighborPositions, position + ) +import Xanthous.Data.VectorBag +import Xanthous.Orphans () +import Xanthous.Util (EqEqProp(..)) +-------------------------------------------------------------------------------- +import Data.Monoid (Endo(..)) +import Test.QuickCheck (Arbitrary(..), CoArbitrary, Function) +import Test.QuickCheck.Checkers (EqProp) +import Test.QuickCheck.Instances.UnorderedContainers () +import Test.QuickCheck.Instances.Vector () +import Text.Show (showString, showParen) +import Data.Aeson +-------------------------------------------------------------------------------- + +type EntityID = Word32 +type NonNullSet a = NonNull (Set a) + +data EntityMap a where + EntityMap :: + { _byPosition :: Map Position (NonNullSet EntityID) + , _byID :: HashMap EntityID (Positioned a) + , _lastID :: EntityID + } -> EntityMap a + deriving stock (Functor, Foldable, Traversable, Generic) + deriving anyclass (NFData, CoArbitrary, Function) +deriving via (EqEqProp (EntityMap a)) instance (Eq a, Ord a) => EqProp (EntityMap a) +makeLenses ''EntityMap + +instance ToJSON a => ToJSON (EntityMap a) where + toJSON = toJSON . toEIDsAndPositioned + + +instance FromJSON a => FromJSON (EntityMap a) where + parseJSON = fmap (fromEIDsAndPositioned @[_]) . parseJSON + +byIDInvariantError :: forall a. a +byIDInvariantError = error $ "Invariant violation: All EntityIDs in byPosition " + <> "must point to entityIDs in byID" + +instance (Ord a, Eq a) => Eq (EntityMap a) where + -- em₁ == em₂ = em₁ ^. _EntityMap == em₂ ^. _EntityMap + (==) = (==) `on` view (_EntityMap . to sort) + +deriving stock instance (Ord a) => Ord (EntityMap a) + +instance Show a => Show (EntityMap a) where + showsPrec pr em + = showParen (pr > 10) + $ showString + . ("fromEIDsAndPositioned " <>) + . show + . toEIDsAndPositioned + $ em + +instance Arbitrary a => Arbitrary (EntityMap a) where + arbitrary = review _EntityMap <$> arbitrary + shrink em = review _EntityMap <$> shrink (em ^. _EntityMap) + +type instance Index (EntityMap a) = EntityID +type instance IxValue (EntityMap a) = (Positioned a) +instance Ixed (EntityMap a) where ix eid = at eid . traverse + +instance At (EntityMap a) where + at eid = lens (view $ byID . at eid) setter + where + setter :: EntityMap a -> Maybe (Positioned a) -> EntityMap a + setter m Nothing = fromMaybe m $ do + Positioned pos _ <- m ^. byID . at eid + pure $ m + & removeEIDAtPos pos + & byID . at eid .~ Nothing + setter m (Just pe@(Positioned pos _)) = m + & (case lookupWithPosition eid m of + Nothing -> id + Just (Positioned origPos _) -> removeEIDAtPos origPos + ) + & byID . at eid ?~ pe + & byPosition . at pos %~ \case + Nothing -> Just $ opoint eid + Just es -> Just $ ninsertSet eid es + removeEIDAtPos pos = + byPosition . at pos %~ (>>= fromNullable . ndeleteSet eid) + +instance Semigroup (EntityMap a) where + em₁ <> em₂ = alaf Endo foldMap (uncurry insertAt) (em₂ ^. _EntityMap) em₁ + +instance Monoid (EntityMap a) where + mempty = emptyEntityMap + +instance FunctorWithIndex EntityID EntityMap + +instance FoldableWithIndex EntityID EntityMap + +instance TraversableWithIndex EntityID EntityMap where + itraversed = byID . itraversed . rmap sequenceA . distrib + itraverse = itraverseOf itraversed + +type instance Element (EntityMap a) = a +instance MonoFoldable (EntityMap a) + +emptyEntityMap :: EntityMap a +emptyEntityMap = EntityMap mempty mempty 0 + +newtype Deduplicate a = Deduplicate (EntityMap a) + deriving stock (Show, Traversable, Generic) + deriving newtype (Eq, Functor, Foldable, EqProp, Arbitrary) + +instance Semigroup (Deduplicate a) where + (Deduplicate em₁) <> (Deduplicate em₂) = + let _byID = em₁ ^. byID <> em₂ ^. byID + _byPosition = mempty &~ do + ifor_ _byID $ \eid (Positioned pos _) -> + at pos %= \case + Just eids -> Just $ ninsertSet eid eids + Nothing -> Just $ opoint eid + _lastID = fromMaybe 1 $ maximumOf (ifolded . asIndex) _byID + in Deduplicate EntityMap{..} + + +-------------------------------------------------------------------------------- + +_EntityMap :: Iso' (EntityMap a) [(Position, a)] +_EntityMap = iso hither yon + where + hither :: EntityMap a -> [(Position, a)] + hither em = do + (pos, eids) <- em ^. byPosition . _Wrapped + eid <- toList eids + ent <- em ^.. byID . at eid . folded . positioned + pure (pos, ent) + yon :: [(Position, a)] -> EntityMap a + yon poses = alaf Endo foldMap (uncurry insertAt) poses emptyEntityMap + + +insertAtReturningID :: forall a. Position -> a -> EntityMap a -> (EntityID, EntityMap a) +insertAtReturningID pos e em = + let (eid, em') = em & lastID <+~ 1 + in em' + & byID . at eid ?~ Positioned pos e + & byPosition . at pos %~ \case + Nothing -> Just $ opoint eid + Just es -> Just $ ninsertSet eid es + & (eid, ) + +insertAt :: forall a. Position -> a -> EntityMap a -> EntityMap a +insertAt pos e = snd . insertAtReturningID pos e + +atPosition :: forall a. (Ord a, Show a) => Position -> Lens' (EntityMap a) (VectorBag a) +atPosition pos = lens getter setter + where + getter em = + let eids :: VectorBag EntityID + eids = maybe mempty (VectorBag . toVector . toNullable) + $ em ^. byPosition . at pos + in getEIDAssume em <$> eids + setter em Empty = em & byPosition . at pos .~ Nothing + setter em (sort -> entities) = + let origEIDs = maybe Empty toNullable $ em ^. byPosition . at pos + origEntitiesWithIDs = + sortOn snd $ toList origEIDs <&> \eid -> (eid, getEIDAssume em eid) + go alles₁@((eid, e₁) :< es₁) -- orig + (e₂ :< es₂) -- new + | e₁ == e₂ + -- same, do nothing + = let (eids, lastEID, byID') = go es₁ es₂ + in (insertSet eid eids, lastEID, byID') + | otherwise + -- e₂ is new, generate a new ID for it + = let (eids, lastEID, byID') = go alles₁ es₂ + eid' = succ lastEID + in (insertSet eid' eids, eid', byID' & at eid' ?~ Positioned pos e₂) + go Empty Empty = (mempty, em ^. lastID, em ^. byID) + go orig Empty = + let byID' = foldr deleteMap (em ^. byID) $ map fst orig + in (mempty, em ^. lastID, byID') + go Empty (new :< news) = + let (eids, lastEID, byID') = go Empty news + eid' = succ lastEID + in (insertSet eid' eids, eid', byID' & at eid' ?~ Positioned pos new) + go _ _ = error "unreachable" + (eidsAtPosition, newLastID, newByID) = go origEntitiesWithIDs entities + in em & byPosition . at pos .~ fromNullable eidsAtPosition + & byID .~ newByID + & lastID .~ newLastID + +getEIDAssume :: EntityMap a -> EntityID -> a +getEIDAssume em eid = fromMaybe byIDInvariantError + $ em ^? byID . ix eid . positioned + +atPositionWithIDs :: Position -> EntityMap a -> Vector (EntityID, Positioned a) +atPositionWithIDs pos em = + let eids = maybe mempty (toVector . toNullable) + $ em ^. byPosition . at pos + in (id &&& Positioned pos . getEIDAssume em) <$> eids + +fromEIDsAndPositioned + :: forall mono a. (MonoFoldable mono, Element mono ~ (EntityID, Positioned a)) + => mono + -> EntityMap a +fromEIDsAndPositioned eps = newLastID $ alaf Endo foldMap insert' eps mempty + where + insert' (eid, pe@(Positioned pos _)) + = (byID . at eid ?~ pe) + . (byPosition . at pos %~ \case + Just eids -> Just $ ninsertSet eid eids + Nothing -> Just $ opoint eid + ) + newLastID em = em & lastID + .~ fromMaybe 1 + (maximumOf (ifolded . asIndex) (em ^. byID)) + +toEIDsAndPositioned :: EntityMap a -> [(EntityID, Positioned a)] +toEIDsAndPositioned = itoListOf $ byID . ifolded + +positions :: EntityMap a -> [Position] +positions = toListOf $ byPosition . to keys . folded + +lookupWithPosition :: EntityID -> EntityMap a -> Maybe (Positioned a) +lookupWithPosition eid = view $ byID . at eid + +lookup :: EntityID -> EntityMap a -> Maybe a +lookup eid = fmap (view positioned) . lookupWithPosition eid + +-- unlawful :( +-- positionedEntities :: IndexedTraversal EntityID (EntityMap a) (EntityMap b) (Positioned a) (Positioned b) +-- positionedEntities = byID . itraversed + +neighbors :: (Ord a, Show a) => Position -> EntityMap a -> Neighbors (VectorBag a) +neighbors pos em = (\p -> view (atPosition p) em) <$> neighborPositions pos + +-- | Traversal to the position of the entity with the given ID +positionOf :: EntityID -> Traversal' (EntityMap a) Position +positionOf eid = ix eid . position + +-------------------------------------------------------------------------------- +makeWrapped ''Deduplicate diff --git a/users/grfn/xanthous/src/Xanthous/Data/EntityMap/Graphics.hs b/users/grfn/xanthous/src/Xanthous/Data/EntityMap/Graphics.hs new file mode 100644 index 000000000000..1398c611cf20 --- /dev/null +++ b/users/grfn/xanthous/src/Xanthous/Data/EntityMap/Graphics.hs @@ -0,0 +1,72 @@ +-------------------------------------------------------------------------------- +module Xanthous.Data.EntityMap.Graphics + ( visiblePositions + , visibleEntities + , lineOfSight + , linesOfSight + , canSee + ) where +-------------------------------------------------------------------------------- +import Xanthous.Prelude hiding (lines) +-------------------------------------------------------------------------------- +import Xanthous.Util (takeWhileInclusive) +import Xanthous.Data +import Xanthous.Data.Entities +import Xanthous.Data.EntityMap +import Xanthous.Game.State +import Xanthous.Util.Graphics (circle, line) +-------------------------------------------------------------------------------- + +-- | Returns a set of positions that are visible, when taking into account +-- 'blocksVision', from the given position, within the given radius. +visiblePositions + :: Entity e + => Position + -> Word -- ^ Vision radius + -> EntityMap e + -> Set Position +visiblePositions pos radius + = setFromList . positions . visibleEntities pos radius + +-- | Returns a list of entities on the *line of sight* from the first position +-- to the second position +lineOfSight + :: forall e. Entity e + => Position -- ^ Origin + -> Position -- ^ Destination + -> EntityMap e + -> [(Position, Vector (EntityID, e))] +lineOfSight (view _Position -> origin) (view _Position -> destination) em = + takeWhileInclusive (none (view blocksVision . entityAttributes . snd) . snd) + $ getPositionedAt <$> line origin destination + where + getPositionedAt :: V2 Int -> (Position, Vector (EntityID, e)) + getPositionedAt (review _Position -> p) = + (p, over _2 (view positioned) <$> atPositionWithIDs p em) + +-- | Returns a list of individual lines of sight, each of which is a list of +-- entities at positions on that line of sight +linesOfSight + :: forall e. Entity e + => Position -- ^ Centerpoint + -> Word -- ^ Radius + -> EntityMap e + -> [[(Position, Vector (EntityID, e))]] +linesOfSight pos visionRadius em = + radius <&> \edge -> lineOfSight pos (_Position # edge) em + where + radius = circle (pos ^. _Position) $ fromIntegral visionRadius + +-- | Given a point and a radius of vision, returns a list of all entities that +-- are *visible* (eg, not blocked by an entity that obscures vision) from that +-- point +visibleEntities :: Entity e => Position -> Word -> EntityMap e -> EntityMap e +visibleEntities pos visionRadius + = fromEIDsAndPositioned + . foldMap (\(p, es) -> over _2 (Positioned p) <$> es) + . fold + . linesOfSight pos visionRadius + +canSee :: Entity e => (e -> Bool) -> Position -> Word -> EntityMap e -> Bool +canSee match pos radius = any match . visibleEntities pos radius +-- ^ this might be optimizable diff --git a/users/grfn/xanthous/src/Xanthous/Data/Levels.hs b/users/grfn/xanthous/src/Xanthous/Data/Levels.hs new file mode 100644 index 000000000000..13251d8afdf2 --- /dev/null +++ b/users/grfn/xanthous/src/Xanthous/Data/Levels.hs @@ -0,0 +1,180 @@ +{-# LANGUAGE StandaloneDeriving #-} +{-# LANGUAGE RecordWildCards #-} +{-# LANGUAGE TemplateHaskell #-} +-------------------------------------------------------------------------------- +module Xanthous.Data.Levels + ( Levels + , allLevels + , numLevels + , nextLevel + , prevLevel + , mkLevels1 + , mkLevels + , oneLevel + , current + , ComonadStore(..) + ) where +-------------------------------------------------------------------------------- +import Xanthous.Prelude hiding ((<.>), Empty, foldMap) +import Xanthous.Util (between, EqProp, EqEqProp(..)) +import Xanthous.Util.Comonad (current) +import Xanthous.Orphans () +-------------------------------------------------------------------------------- +import Control.Comonad.Store +import Control.Comonad.Store.Zipper +import Data.Aeson (ToJSON(..), FromJSON(..)) +import Data.Aeson.Generic.DerivingVia +import Data.Functor.Apply +import Data.Foldable (foldMap) +import Data.List.NonEmpty (NonEmpty) +import qualified Data.List.NonEmpty as NE +import Data.Maybe (fromJust) +import Data.Sequence (Seq((:<|), Empty)) +import Data.Semigroup.Foldable.Class +import Data.Text (replace) +import Test.QuickCheck +-------------------------------------------------------------------------------- + +-- | Collection of levels plus a pointer to the current level +-- +-- Navigation is via the 'Comonad' instance. We can get the current level with +-- 'extract': +-- +-- extract @Levels :: Levels level -> level +-- +-- For access to and modification of the level, use +-- 'Xanthous.Util.Comonad.current' +newtype Levels a = Levels { levelZipper :: Zipper Seq a } + deriving stock (Generic) + deriving (Functor, Comonad, Foldable) via (Zipper Seq) + +type instance Element (Levels a) = a +instance MonoFoldable (Levels a) +instance MonoFunctor (Levels a) +instance MonoTraversable (Levels a) + +instance ComonadStore Word Levels where + pos = toEnum . pos . levelZipper + peek i = peek (fromEnum i) . levelZipper + +instance Traversable Levels where + traverse f (Levels z) = Levels <$> traverse f z + +instance Foldable1 Levels + +instance Traversable1 Levels where + traverse1 f levs@(Levels z) = seek (pos levs) . partialMkLevels <$> go (unzipper z) + where + go Empty = error "empty seq, unreachable" + go (x :<| xs) = (<|) <$> f x <.> go xs + +-- | Always takes the position of the latter element +instance Semigroup (Levels a) where + levs₁ <> levs₂ + = seek (pos levs₂) + . partialMkLevels + $ allLevels levs₁ <> allLevels levs₂ + +-- | The number of levels stored in 'Levels' +-- +-- Equivalent to 'Data.Foldable.length', but likely faster +numLevels :: Levels a -> Word +numLevels = toEnum . size . levelZipper + +-- | Make Levels from a Seq. Throws an error if the seq is not empty +partialMkLevels :: Seq a -> Levels a +partialMkLevels = Levels . fromJust . zipper + +-- | Make Levels from a possibly-empty structure +mkLevels :: Foldable1 f => f level -> Maybe (Levels level) +mkLevels = fmap Levels . zipper . foldMap pure + +-- | Make Levels from a non-empty structure +mkLevels1 :: Foldable1 f => f level -> Levels level +mkLevels1 = fromJust . mkLevels + +oneLevel :: a -> Levels a +oneLevel = mkLevels1 . Identity + +-- | Get a sequence of all the levels +allLevels :: Levels a -> Seq a +allLevels = unzipper . levelZipper + +-- | Step to the next level, generating a new level if necessary using the given +-- applicative action +nextLevel + :: Applicative m + => m level -- ^ Generate a new level, if necessary + -> Levels level + -> m (Levels level) +nextLevel genLevel levs + | succ (pos levs) < numLevels levs + = pure $ seeks succ levs + | otherwise + = genLevel <&> \level -> + seek (pos levs + 1) . partialMkLevels $ allLevels levs |> level + +-- | Go to the previous level. Returns Nothing if 'pos' is 0 +prevLevel :: Levels level -> Maybe (Levels level) +prevLevel levs | pos levs == 0 = Nothing + | otherwise = Just $ seeks pred levs + +-------------------------------------------------------------------------------- + +-- | alternate, slower representation of Levels we can Iso into to perform +-- various operations +data AltLevels a = AltLevels + { _levels :: NonEmpty a + , _currentLevel :: Word -- ^ invariant: is within the bounds of _levels + } + deriving stock (Show, Eq, Generic) + deriving anyclass (NFData, CoArbitrary, Function) + deriving (ToJSON, FromJSON) + via WithOptions '[ FieldLabelModifier '[Drop 1] ] + (AltLevels a) +makeLenses ''AltLevels + +alt :: Iso (Levels a) (Levels b) (AltLevels a) (AltLevels b) +alt = iso hither yon + where + hither levs = AltLevels (NE.fromList . toList $ allLevels levs) (pos levs) + yon (AltLevels levs curr) = seek curr $ mkLevels1 levs + +instance Eq a => Eq (Levels a) where + (==) = (==) `on` view alt + +deriving via EqEqProp (Levels a) instance Eq a => EqProp (Levels a) + +instance Show a => Show (Levels a) where + show = unpack . replace "AltLevels" "Levels" . pack . show . view alt + +instance NFData a => NFData (Levels a) where + rnf = rnf . view alt + +instance ToJSON a => ToJSON (Levels a) where + toJSON = toJSON . view alt + +instance FromJSON a => FromJSON (Levels a) where + parseJSON = fmap (review alt) . parseJSON + +instance Arbitrary a => Arbitrary (AltLevels a) where + arbitrary = do + _levels <- arbitrary + _currentLevel <- choose (0, pred . toEnum . length $ _levels) + pure AltLevels {..} + shrink als = do + _levels <- shrink $ als ^. levels + _currentLevel <- filter (between 0 $ pred . toEnum . length $ _levels) + $ shrink $ als ^. currentLevel + pure AltLevels {..} + + +instance Arbitrary a => Arbitrary (Levels a) where + arbitrary = review alt <$> arbitrary + shrink = fmap (review alt) . shrink . view alt + +instance CoArbitrary a => CoArbitrary (Levels a) where + coarbitrary = coarbitrary . view alt + +instance Function a => Function (Levels a) where + function = functionMap (view alt) (review alt) diff --git a/users/grfn/xanthous/src/Xanthous/Data/Memo.hs b/users/grfn/xanthous/src/Xanthous/Data/Memo.hs new file mode 100644 index 000000000000..2b2ee0f96028 --- /dev/null +++ b/users/grfn/xanthous/src/Xanthous/Data/Memo.hs @@ -0,0 +1,98 @@ +-------------------------------------------------------------------------------- +-- | Memoized values +-------------------------------------------------------------------------------- +module Xanthous.Data.Memo + ( Memoized(UnMemoized) + , memoizeWith + , getMemoized + , runMemoized + , fillWith + , fillWithM + ) where +-------------------------------------------------------------------------------- +import Xanthous.Prelude +import Data.Aeson (FromJSON, ToJSON) +import Test.QuickCheck (Arbitrary (arbitrary), oneof, CoArbitrary, Function) +import Test.QuickCheck.Checkers (EqProp) +import Xanthous.Util (EqEqProp(EqEqProp)) +import Control.Monad.State.Class (MonadState) +-------------------------------------------------------------------------------- + +-- | A memoized value, keyed by a key +-- +-- If key is different than what is stored here, then val is invalid +data Memoized key val = Memoized key val | UnMemoized + deriving stock (Show, Eq, Generic) + deriving anyclass (Hashable, FromJSON, ToJSON, NFData, CoArbitrary, Function) + deriving EqProp via EqEqProp (Memoized key val) + +instance (Arbitrary k, Arbitrary v) => Arbitrary (Memoized k v) where + arbitrary = oneof [ pure UnMemoized + , Memoized <$> arbitrary <*> arbitrary + ] + +-- | Construct a memoized value with the given key +memoizeWith :: forall key val. key -> val -> Memoized key val +memoizeWith = Memoized +{-# INLINE memoizeWith #-} + +-- | Retrieve a memoized value providing the key. If the value is unmemoized or +-- the keys do not match, returns Nothing. +-- +-- >>> getMemoized 1 (memoizeWith @Int @Int 1 2) +-- Just 2 +-- +-- >>> getMemoized 2 (memoizeWith @Int @Int 1 2) +-- Nothing +-- +-- >>> getMemoized 1 (UnMemoized :: Memoized Int Int) +-- Nothing +getMemoized :: Eq key => key -> Memoized key val -> Maybe val +getMemoized key (Memoized key' v) + | key == key' = Just v + | otherwise = Nothing +getMemoized _ UnMemoized = Nothing +{-# INLINE getMemoized #-} + +-- | Get a memoized value using an applicative action to obtain the key +runMemoized + :: (Eq key, Applicative m) + => Memoized key val + -> m key + -> m (Maybe val) +runMemoized m mk = getMemoized <$> mk <*> pure m + +-- | In a monadic state containing a 'MemoState', look up the current memoized +-- target of some lens keyed by k, filling it with v if not present and +-- returning either the new or old value +fillWith + :: forall m s k v. + (MonadState s m, Eq k) + => Lens' s (Memoized k v) + -> k + -> v + -> m v +fillWith l k v' = do + uses l (getMemoized k) >>= \case + Just v -> pure v + Nothing -> do + l .= memoizeWith k v' + pure v' + +-- | In a monadic state, look up the current memoized target of some lens keyed +-- by k, filling it with the result of some monadic action v if not present and +-- returning either the new or old value +fillWithM + :: forall m s k v. + (MonadState s m, Eq k) + => Lens' s (Memoized k v) + -> k + -> m v + -> m v +fillWithM l k mv = do + uses l (getMemoized k) >>= \case + Just v -> pure v + Nothing -> do + v' <- mv + l .= memoizeWith k v' + pure v' diff --git a/users/grfn/xanthous/src/Xanthous/Data/NestedMap.hs b/users/grfn/xanthous/src/Xanthous/Data/NestedMap.hs new file mode 100644 index 000000000000..1b875d448302 --- /dev/null +++ b/users/grfn/xanthous/src/Xanthous/Data/NestedMap.hs @@ -0,0 +1,227 @@ +{-# LANGUAGE PartialTypeSignatures #-} +{-# LANGUAGE UndecidableInstances #-} +{-# LANGUAGE QuantifiedConstraints #-} +{-# LANGUAGE StandaloneDeriving #-} +{-# LANGUAGE PolyKinds #-} +-------------------------------------------------------------------------------- +module Xanthous.Data.NestedMap + ( NestedMapVal(..) + , NestedMap(..) + , lookup + , lookupVal + , insert + + -- * + , (:->) + , BifunctorFunctor'(..) + , BifunctorMonad'(..) + ) where +-------------------------------------------------------------------------------- +import Xanthous.Prelude hiding (lookup, foldMap) +import qualified Xanthous.Prelude as P +-------------------------------------------------------------------------------- +import Test.QuickCheck +import Data.Aeson +import Data.Function (fix) +import Data.Foldable (Foldable(..)) +import Data.List.NonEmpty (NonEmpty(..)) +import qualified Data.List.NonEmpty as NE +-------------------------------------------------------------------------------- + +-- | Natural transformations on bifunctors +type (:->) p q = forall a b. p a b -> q a b +infixr 0 :-> + +class (forall b. Bifunctor b => Bifunctor (t b)) => BifunctorFunctor' t where + bifmap' :: (Bifunctor p, Bifunctor q) => (p :-> q) -> t p :-> t q + +class BifunctorFunctor' t => BifunctorMonad' t where + bireturn' :: (Bifunctor p) => p :-> t p + + bibind' :: (Bifunctor p, Bifunctor q) => (p :-> t q) -> t p :-> t q + bibind' f = bijoin' . bifmap' f + + bijoin' :: (Bifunctor p) => t (t p) :-> t p + bijoin' = bibind' id + + {-# MINIMAL bireturn', (bibind' | bijoin') #-} + +-------------------------------------------------------------------------------- + +data NestedMapVal m k v = Val v | Nested (NestedMap m k v) + +deriving stock instance + ( forall k' v'. (Show k', Show v') => Show (m k' v') + , Show k + , Show v + ) => Show (NestedMapVal m k v) + +deriving stock instance + ( forall k' v'. (Eq k', Eq v') => Eq (m k' v') + , Eq k + , Eq v + ) => Eq (NestedMapVal m k v) + +instance + forall m k v. + ( Arbitrary (m k v) + , Arbitrary (m k (NestedMapVal m k v)) + , Arbitrary k + , Arbitrary v + , IsMap (m k (NestedMapVal m k v)) + , MapValue (m k (NestedMapVal m k v)) ~ (NestedMapVal m k v) + , ContainerKey (m k (NestedMapVal m k v)) ~ k + ) => Arbitrary (NestedMapVal m k v) where + arbitrary = sized . fix $ \gen n -> + let nst = fmap (NestedMap . mapFromList) + . listOf + $ (,) <$> arbitrary @k <*> gen (n `div` 2) + in if n == 0 + then Val <$> arbitrary + else oneof [ Val <$> arbitrary + , Nested <$> nst] + shrink (Val v) = Val <$> shrink v + shrink (Nested mkv) = Nested <$> shrink mkv + +instance Functor (m k) => Functor (NestedMapVal m k) where + fmap f (Val v) = Val $ f v + fmap f (Nested m) = Nested $ fmap f m + +instance Bifunctor m => Bifunctor (NestedMapVal m) where + bimap _ g (Val v) = Val $ g v + bimap f g (Nested m) = Nested $ bimap f g m + +instance BifunctorFunctor' NestedMapVal where + bifmap' _ (Val v) = Val v + bifmap' f (Nested m) = Nested $ bifmap' f m + +instance (ToJSONKey k, ToJSON v, ToJSON (m k (NestedMapVal m k v))) + => ToJSON (NestedMapVal m k v) where + toJSON (Val v) = toJSON v + toJSON (Nested m) = toJSON m + +instance Foldable (m k) => Foldable (NestedMapVal m k) where + foldMap f (Val v) = f v + foldMap f (Nested m) = foldMap f m + +-- _NestedMapVal +-- :: forall m k v m' k' v'. +-- ( IsMap (m k v), IsMap (m' k' v') +-- , IsMap (m [k] v), IsMap (m' [k'] v') +-- , ContainerKey (m k v) ~ k, ContainerKey (m' k' v') ~ k' +-- , ContainerKey (m [k] v) ~ [k], ContainerKey (m' [k'] v') ~ [k'] +-- , MapValue (m k v) ~ v, MapValue (m' k' v') ~ v' +-- , MapValue (m [k] v) ~ v, MapValue (m' [k'] v') ~ v' +-- ) +-- => Iso (NestedMapVal m k v) +-- (NestedMapVal m' k' v') +-- (m [k] v) +-- (m' [k'] v') +-- _NestedMapVal = iso hither yon +-- where +-- hither :: NestedMapVal m k v -> m [k] v +-- hither (Val v) = singletonMap [] v +-- hither (Nested m) = bimap _ _ $ m ^. _NestedMap +-- yon = _ + +-------------------------------------------------------------------------------- + +newtype NestedMap m k v = NestedMap (m k (NestedMapVal m k v)) + +deriving stock instance + ( forall k' v'. (Eq k', Eq v') => Eq (m k' v') + , Eq k + , Eq v + ) => Eq (NestedMap m k v) + +deriving stock instance + ( forall k' v'. (Show k', Show v') => Show (m k' v') + , Show k + , Show v + ) => Show (NestedMap m k v) + +instance Arbitrary (m k (NestedMapVal m k v)) + => Arbitrary (NestedMap m k v) where + arbitrary = NestedMap <$> arbitrary + shrink (NestedMap m) = NestedMap <$> shrink m + +instance Functor (m k) => Functor (NestedMap m k) where + fmap f (NestedMap m) = NestedMap $ fmap (fmap f) m + +instance Bifunctor m => Bifunctor (NestedMap m) where + bimap f g (NestedMap m) = NestedMap $ bimap f (bimap f g) m + +instance BifunctorFunctor' NestedMap where + bifmap' f (NestedMap m) = NestedMap . f $ bimap id (bifmap' f) m + +instance (ToJSONKey k, ToJSON v, ToJSON (m k (NestedMapVal m k v))) + => ToJSON (NestedMap m k v) where + toJSON (NestedMap m) = toJSON m + +instance Foldable (m k) => Foldable (NestedMap m k) where + foldMap f (NestedMap m) = foldMap (foldMap f) m + +-------------------------------------------------------------------------------- + +lookup + :: ( IsMap (m k (NestedMapVal m k v)) + , MapValue (m k (NestedMapVal m k v)) ~ (NestedMapVal m k v) + , ContainerKey (m k (NestedMapVal m k v)) ~ k + ) + => NonEmpty k + -> NestedMap m k v + -> Maybe (NestedMapVal m k v) +lookup (p :| []) (NestedMap vs) = P.lookup p vs +lookup (p :| (p₁ : ps)) (NestedMap vs) = P.lookup p vs >>= \case + (Val _) -> Nothing + (Nested vs') -> lookup (p₁ :| ps) vs' + +lookupVal + :: ( IsMap (m k (NestedMapVal m k v)) + , MapValue (m k (NestedMapVal m k v)) ~ (NestedMapVal m k v) + , ContainerKey (m k (NestedMapVal m k v)) ~ k + ) + => NonEmpty k + -> NestedMap m k v + -> Maybe v +lookupVal ks m + | Just (Val v) <- lookup ks m = Just v + | otherwise = Nothing + +insert + :: ( IsMap (m k (NestedMapVal m k v)) + , MapValue (m k (NestedMapVal m k v)) ~ (NestedMapVal m k v) + , ContainerKey (m k (NestedMapVal m k v)) ~ k + ) + => NonEmpty k + -> v + -> NestedMap m k v + -> NestedMap m k v +insert (k :| []) v (NestedMap m) = NestedMap $ P.insertMap k (Val v) m +insert (k₁ :| (k₂ : ks)) v (NestedMap m) = NestedMap $ alterMap upd k₁ m + where + upd (Just (Nested nm)) = Just . Nested $ insert (k₂ :| ks) v nm + upd _ = Just $ + let (kΩ :| ks') = NE.reverse (k₂ :| ks) + in P.foldl' + (\m' k -> Nested . NestedMap . singletonMap k $ m') + (Nested . NestedMap . singletonMap kΩ $ Val v) + ks' + +-- _NestedMap +-- :: ( IsMap (m k v), IsMap (m' k' v') +-- , IsMap (m (NonEmpty k) v), IsMap (m' (NonEmpty k') v') +-- , ContainerKey (m k v) ~ k, ContainerKey (m' k' v') ~ k' +-- , ContainerKey (m (NonEmpty k) v) ~ (NonEmpty k) +-- , ContainerKey (m' (NonEmpty k') v') ~ (NonEmpty k') +-- , MapValue (m k v) ~ v, MapValue (m' k' v') ~ v' +-- , MapValue (m (NonEmpty k) v) ~ v, MapValue (m' (NonEmpty k') v') ~ v' +-- ) +-- => Iso (NestedMap m k v) +-- (NestedMap m' k' v') +-- (m (NonEmpty k) v) +-- (m' (NonEmpty k') v') +-- _NestedMap = iso undefined yon +-- where +-- hither (NestedMap m) = undefined . mapToList $ m +-- yon mkv = undefined diff --git a/users/grfn/xanthous/src/Xanthous/Data/VectorBag.hs b/users/grfn/xanthous/src/Xanthous/Data/VectorBag.hs new file mode 100644 index 000000000000..2e6d48062a45 --- /dev/null +++ b/users/grfn/xanthous/src/Xanthous/Data/VectorBag.hs @@ -0,0 +1,100 @@ +{-# LANGUAGE UndecidableInstances #-} +{-# LANGUAGE StandaloneDeriving #-} +{-# LANGUAGE DeriveTraversable #-} +{-# LANGUAGE TemplateHaskell #-} +-------------------------------------------------------------------------------- +module Xanthous.Data.VectorBag + (VectorBag(..) + ) where +-------------------------------------------------------------------------------- +import Xanthous.Prelude +import Data.Aeson +import qualified Data.Vector as V +import Test.QuickCheck +import Test.QuickCheck.Instances.Vector () +-------------------------------------------------------------------------------- + +-- | Acts exactly like a Vector, except ignores order when testing for equality +newtype VectorBag a = VectorBag (Vector a) + deriving stock + ( Traversable + , Generic + ) + deriving newtype + ( Show + , Read + , Foldable + , FromJSON + , FromJSON1 + , ToJSON + , Reversing + , Applicative + , Functor + , Monad + , Monoid + , Semigroup + , Arbitrary + , CoArbitrary + , Filterable + ) +makeWrapped ''VectorBag + +instance Function a => Function (VectorBag a) where + function = functionMap (\(VectorBag v) -> v) VectorBag + +type instance Element (VectorBag a) = a +deriving via (Vector a) instance MonoFoldable (VectorBag a) +deriving via (Vector a) instance GrowingAppend (VectorBag a) +deriving via (Vector a) instance SemiSequence (VectorBag a) +deriving via (Vector a) instance MonoPointed (VectorBag a) +deriving via (Vector a) instance MonoFunctor (VectorBag a) + +instance Cons (VectorBag a) (VectorBag b) a b where + _Cons = prism (\(x, VectorBag xs) -> VectorBag $ x <| xs) $ \(VectorBag v) -> + if V.null v + then Left (VectorBag mempty) + else Right (V.unsafeHead v, VectorBag $ V.unsafeTail v) + +instance AsEmpty (VectorBag a) where + _Empty = prism' (const $ VectorBag Empty) $ \case + (VectorBag Empty) -> Just () + _ -> Nothing + +instance Witherable VectorBag where + wither f (VectorBag v) = VectorBag <$> wither f v + witherM f (VectorBag v) = VectorBag <$> witherM f v + filterA p (VectorBag v) = VectorBag <$> filterA p v + +{- + TODO: + , Ixed + , FoldableWithIndex + , FunctorWithIndex + , TraversableWithIndex + , Snoc + , Each +-} + +instance Ord a => Eq (VectorBag a) where + (==) = (==) `on` (view _Wrapped . sort) + +instance Ord a => Ord (VectorBag a) where + compare = compare `on` (view _Wrapped . sort) + +instance MonoTraversable (VectorBag a) where + otraverse f (VectorBag v) = VectorBag <$> otraverse f v + +instance IsSequence (VectorBag a) where + fromList = VectorBag . fromList + break prd (VectorBag v) = bimap VectorBag VectorBag $ break prd v + span prd (VectorBag v) = bimap VectorBag VectorBag $ span prd v + dropWhile prd (VectorBag v) = VectorBag $ dropWhile prd v + takeWhile prd (VectorBag v) = VectorBag $ takeWhile prd v + splitAt idx (VectorBag v) = bimap VectorBag VectorBag $ splitAt idx v + unsafeSplitAt idx (VectorBag v) = + bimap VectorBag VectorBag $ unsafeSplitAt idx v + take n (VectorBag v) = VectorBag $ take n v + unsafeTake n (VectorBag v) = VectorBag $ unsafeTake n v + drop n (VectorBag v) = VectorBag $ drop n v + unsafeDrop n (VectorBag v) = VectorBag $ unsafeDrop n v + partition p (VectorBag v) = bimap VectorBag VectorBag $ partition p v |