-
Notifications
You must be signed in to change notification settings - Fork 52
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
18 changed files
with
90 additions
and
60 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
65 changes: 65 additions & 0 deletions
65
src/swarm-topography/Swarm/Game/Scenario/Topography/Grid.hs
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,65 @@ | ||
-- | | ||
-- SPDX-License-Identifier: BSD-3-Clause | ||
module Swarm.Game.Scenario.Topography.Grid ( | ||
Grid (..), | ||
gridToVec, | ||
mapIndexedMembers, | ||
allMembers, | ||
mapRows, | ||
getRows, | ||
mkGrid, | ||
) | ||
where | ||
|
||
import Data.Aeson (ToJSON (..)) | ||
import Data.List.NonEmpty (NonEmpty) | ||
import Data.List.NonEmpty qualified as NE | ||
import Data.Maybe (fromMaybe) | ||
import Data.Semigroup | ||
import Data.Vector qualified as V | ||
import Swarm.Game.World.Coords | ||
import Prelude hiding (zipWith) | ||
|
||
data Grid c | ||
= EmptyGrid | ||
| Grid (NonEmpty (NonEmpty c)) | ||
deriving (Show, Eq, Functor, Foldable, Traversable) | ||
|
||
mkGrid :: [[a]] -> Grid a | ||
mkGrid rows = fromMaybe EmptyGrid $ do | ||
rowsNE <- NE.nonEmpty =<< mapM NE.nonEmpty rows | ||
return $ Grid rowsNE | ||
|
||
getRows :: Grid a -> [[a]] | ||
getRows EmptyGrid = [] | ||
getRows (Grid g) = NE.toList . NE.map NE.toList $ g | ||
|
||
-- | Since the derived 'Functor' instance applies to the | ||
-- type parameter that is nested within lists, we define | ||
-- an explicit function for mapping over the enclosing lists. | ||
mapRows :: (NonEmpty (NonEmpty a) -> NonEmpty (NonEmpty b)) -> Grid a -> Grid b | ||
mapRows _ EmptyGrid = EmptyGrid | ||
mapRows f (Grid rows) = Grid $ f rows | ||
|
||
allMembers :: Grid a -> [a] | ||
allMembers EmptyGrid = [] | ||
allMembers g = concat . getRows $ g | ||
|
||
mapIndexedMembers :: (Coords -> a -> b) -> Grid a -> [b] | ||
mapIndexedMembers _ EmptyGrid = [] | ||
mapIndexedMembers f (Grid g) = | ||
NE.toList $ | ||
sconcat $ | ||
NE.zipWith (\i -> NE.zipWith (\j -> f (Coords (i, j))) nonemptyCount) nonemptyCount g | ||
where | ||
nonemptyCount = NE.iterate succ 0 | ||
|
||
-- | Converts linked lists to vectors to facilitate | ||
-- random access when assembling the image | ||
gridToVec :: Grid a -> V.Vector (V.Vector a) | ||
gridToVec EmptyGrid = V.empty | ||
gridToVec (Grid g) = V.fromList . map (V.fromList . NE.toList) $ NE.toList g | ||
|
||
instance (ToJSON a) => ToJSON (Grid a) where | ||
toJSON EmptyGrid = toJSON ([] :: [a]) | ||
toJSON (Grid g) = toJSON g |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters