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Diffstat (limited to '')
-rw-r--r-- | server/lib/Cafp/InfiniteDeck.hs | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/server/lib/Cafp/InfiniteDeck.hs b/server/lib/Cafp/InfiniteDeck.hs deleted file mode 100644 index 8772011..0000000 --- a/server/lib/Cafp/InfiniteDeck.hs +++ /dev/null @@ -1,36 +0,0 @@ -module Cafp.InfiniteDeck - ( InfiniteDeck - , new - , newIO - , pop - , popN - ) where - -import Data.List (intercalate) -import qualified Data.Vector as V -import System.Random (StdGen, newStdGen) -import VectorShuffling.Immutable (shuffle) - -newtype InfiniteDeck a = InfiniteDeck [a] - -instance Show a => Show (InfiniteDeck a) where - show (InfiniteDeck xs) = - "[" ++ intercalate ", " (map show $ take 5 xs) ++ "...]" - -new :: V.Vector a -> StdGen -> InfiniteDeck a -new vec gen0 - | V.null vec = error "Cafp.InfiniteDeck.new: empty vector" - | otherwise = InfiniteDeck (V.toList x ++ xs) - where - (x, gen1) = shuffle vec gen0 - InfiniteDeck xs = new vec gen1 - -newIO :: V.Vector a -> IO (InfiniteDeck a) -newIO vec = new vec <$> newStdGen - -pop :: InfiniteDeck a -> (a, InfiniteDeck a) -pop (InfiniteDeck []) = error "Cafp.InfiniteDeck.pop: empty" -pop (InfiniteDeck (x : xs)) = (x, InfiniteDeck xs) - -popN :: Int -> InfiniteDeck a -> ([a], InfiniteDeck a) -popN n (InfiniteDeck xs) = let (ys, zs) = splitAt n xs in (ys, InfiniteDeck zs) |