X-Git-Url: https://git.njae.me.uk/?p=advent-of-code-20.git;a=blobdiff_plain;f=advent15%2Fsrc%2Fadvent15loop.hs;h=ca1d81104631fec09f47f55230f27769064b8aa8;hp=7d2d258c87150bf19ee47e1aacb3b17f1535cc50;hb=47e592658e720ad3f98bf023fe22b1350bf7d0d2;hpb=de640d46282134bb95db645a2bd8de687f3251b1

diff --git a/advent15/src/advent15loop.hs b/advent15/src/advent15loop.hs
index 7d2d258..ca1d811 100644
--- a/advent15/src/advent15loop.hs
+++ b/advent15/src/advent15loop.hs
@@ -25,6 +25,11 @@ runGame seed roundsNeeded =
        gameLoop roundsNeeded round word history
        readSTRef word
 
+-- gameLoop targetRound round word history =
+--     do gameStep round word history 
+--          `untilM_` ((== targetRound) <$> readSTRef round)
+--        return ()
+
 -- gameLoop targetRound round word history =
 --     do ( gameStep round word history 
 --          `untilM_` (do r <- readSTRef round
@@ -44,9 +49,14 @@ runGame seed roundsNeeded =
 --                (gameStep round word history ) 
 --        return ()
 
+-- gameLoop targetRound round word history =
+--     do whileM_ (do r <- readSTRef round
+--                    return $ r /= targetRound )
+--                $ gameStep round word history
+--        return ()
+
 gameLoop targetRound round word history =
-    do whileM_ (do r <- readSTRef round
-                   return $ r /= targetRound )
+    do whileM_ ((/= targetRound) <$> readSTRef round)
                $ gameStep round word history
        return ()