X-Git-Url: https://git.njae.me.uk/?a=blobdiff_plain;f=app%2Fadvent02.hs;fp=app%2Fadvent02.hs;h=0000000000000000000000000000000000000000;hb=fd498a2713d69a5d55179ff07e58ce296d6fba94;hp=747001df54d848f186ab4dd22c73d01522e3c39f;hpb=3a26b187d5dc23b05fb73daabe52a92976a7a3c7;p=advent-of-code-16.git

diff --git a/app/advent02.hs b/app/advent02.hs
deleted file mode 100644
index 747001d..0000000
--- a/app/advent02.hs
+++ /dev/null
@@ -1,90 +0,0 @@
-module Main(main) where
-
-import Data.Array.IArray
-
--- Row 1 is top, column 1 is left
-type Position = (Int, Int)
-type Keyboard = Array Position Char
-
-kb1 = ["xxxxx", 
-       "x123x", 
-       "x456x",
-       "x789x",
-       "xxxxx"]
-
-kb2 = ["xxxxxxx",
-       "xxx1xxx",
-       "xx234xx",
-       "x56789x",
-       "xxABCxx",
-       "xxxDxxx",
-       "xxxxxxx"]
-
-enumerate = zip [0..]
-
-mkKeyboard :: [String] -> Keyboard
-mkKeyboard kb = array ((0, 0), (length kb - 1, length (kb!!0) - 1))
-    [((i, j), c) | (i, r) <- enumerate kb, (j, c) <- enumerate r]
-
-keyboard1 = mkKeyboard kb1
-keyboard2 = mkKeyboard kb2
-
-findKey :: Keyboard -> Char-> Position
-findKey kb c = fst $ head $ filter (\a -> (snd a) == c) $ assocs kb
-
--- data Coord = One | Two | Three
---     deriving (Read, Show, Eq, Ord, Enum, Bounded)
--- -- instance Bounded Coord where
--- --     minBound = Coord 1
--- --     maxBound = Coord 3
-
--- data Position = Position Coord Coord
---     deriving (Show, Eq)
-
-main :: IO ()
-main = do 
-        instrText <- readFile "data/advent02.txt" 
-        let instructions = lines instrText
-        part1 instructions
-        part2 instructions
-
-part1 :: [String] -> IO ()
-part1 instructions = do 
-        putStrLn $ followInstructions keyboard1 instructions
-
-
-part2 :: [String] -> IO ()
-part2 instructions = do 
-        putStrLn $ followInstructions keyboard2 instructions
-
-
-followInstructions :: Keyboard -> [String] -> String
-followInstructions kb instr = moveSeries kb (startPosition kb) instr
-
-
-startPosition :: Keyboard -> Position
-startPosition kb = findKey kb '5'
-
-moveSeries :: Keyboard -> Position -> [String] -> String
-moveSeries _ _ [] = []
-moveSeries kb p (i:is) = (n:ns)
-    where p' = makeMoves kb p i
-          n = kb ! p'
-          ns = moveSeries kb p' is
-
-makeMoves :: Keyboard -> Position -> [Char] -> Position
-makeMoves kb p ms = foldl (safeMove kb) p ms
-
-safeMove :: Keyboard -> Position -> Char -> Position
-safeMove kb pos dir = maybeRevert kb pos (move pos dir)
-
-move :: Position -> Char -> Position
-move (r, c) 'U' = (r-1, c)
-move (r, c) 'D' = (r+1, c)
-move (r, c) 'L' = (r, c-1)
-move (r, c) 'R' = (r, c+1)
-
-maybeRevert :: Keyboard -> Position -> Position -> Position
-maybeRevert kb oldPos newPos 
-    | kb ! newPos == 'x' = oldPos
-    | otherwise = newPos