Tidying

[advent-of-code-22.git] / advent22 / Main.hs

diff --git a/advent22/Main.hs b/advent22/Main.hs
index 17f66898e93c286d9438e42dd3656f3f718c5a36..1a2e1c7eb67281b52f3c35f3a3564f77ca5d2bb3 100644 (file)
--- a/advent22/Main.hs
+++ b/advent22/Main.hs
@@ -1,6 +1,6 @@
 -- Writeup at https://work.njae.me.uk/2022/12/19/advent-of-code-2022-day-18/
 
-import Debug.Trace
+-- import Debug.Trace
 
 import AoC
 import Prelude hiding (Left, Right)
@@ -10,7 +10,6 @@ import Linear hiding (E)
 import Control.Lens
 import Data.Ix
 import Data.Maybe
-import Data.List
 import Data.Char
 import Control.Monad.Reader
 
@@ -62,6 +61,7 @@ main =
       print $ part2 field instrs
       -- print $ probeAllCorners field
 
+part1, part2 :: FieldMap -> [PathElement] -> Int
 part1 fieldMap instrs = passwordOf endPerson
   where field = mkFlatField fieldMap
         startPos = V2 0 $ fromJust $ minimumOf (folded . filteredBy (_r . only 0) . _c) $ M.keysSet fieldMap
@@ -199,8 +199,6 @@ crossEdge person face =
     (Down,  F) -> person & position . _r .~ 0 & position . _c .~ (interpol c 100 149)
     (Left,  F) -> person & position . _r .~ 0 & position . _c .~ (interpol r 50 99) & facing .~ Down
 
-    otherwise -> error ("Crossing illegal boundary "  ++ show (person, face))
-
   where r = person ^. position . _r
         c = person ^. position . _c
         d = person ^. facing
@@ -250,6 +248,7 @@ mkField rows = M.fromList
           | cell == '#' = Wall
           where cell = (rows !! r) !! c
 
+isCell :: Int -> Int -> [String] -> Bool
 isCell r c rows = isRow && isCol && ((rows !! r) !! c) `elem` (".#" :: String)
   where isRow = r < length rows
         isCol = c < (length $ rows !! r)