src/Main.hs

   1 import SynacorEngine
   2
   3 import Debug.Trace
   4
   5 import Numeric
   6 import System.IO
   7 import Data.Char
   8 import Data.List
   9 import qualified Data.Map.Strict as M
  10 import Data.Map.Strict ((!))
  11 import Control.Lens -- hiding ((<|), (|>), (:>), (:<), indices)
  12
  13 import Control.Monad.State.Strict
  14 import Control.Monad.Reader
  15 import Control.Monad.Writer
  16 import Control.Monad.RWS.Strict
  17
  18 -- import Data.Bits
  19 import Data.Word
  20 import Data.Binary.Get
  21 import qualified Data.ByteString.Lazy as BL
  22
  23
  24 data SynacorState = SynacorState
  25   { _ssMachines :: [Machine]
  26   , _ssInputs :: [String]
  27   , _ssOutputs :: [String]
  28   , _ssContinue :: Bool
  29   , _ssUnsaved :: Bool
  30   , _ssState :: [ExecutionState]
  31   , _ssTracing :: Bool
  32   , _ssDumpFile :: String
  33   } deriving (Ord, Eq)
  34 makeLenses ''SynacorState
  35
  36 instance Show SynacorState
  37   where
  38     show state =
  39           intercalate ", "
  40             [ "SynacorState"
  41             , (show (length (state ^. ssMachines)) ++ " machines")
  42             , "inputs " ++ (intercalate ":" $ state ^. ssInputs)
  43             , "outputs " ++ (intercalate ":" $ fmap (take 20) $ state ^. ssOutputs)
  44             , "conts " ++ (show $ state ^. ssContinue)
  45             , "unsaved " ++ (show $ state ^. ssUnsaved)
  46             , "states " ++ (show $ state ^. ssState)
  47             , "tracing " ++ (show $ state ^. ssTracing)
  48             , "dumping to " ++ (state ^. ssDumpFile)
  49             ]
  50
  51 main :: IO ()
  52 main =
  53   do  -- mem <- getMemory
  54       -- print $ [(n, showHex (mem ! n) "") | n <- [0..5] ]
  55       -- machineInput <- readFile "adventure_input.txt"
  56       -- let mInp = wordify machineInput
  57       -- let machine = makeMachine mem
  58       -- let (exState, _machine, output) = runMachine mInp machine
  59       -- print exState
  60       -- putStrLn $ showOutput output
  61
  62       state0 <- emptyState
  63       let state1 = runWithoutInput state0
  64       let newOutput = head $ state1 ^. ssOutputs
  65       putStrLn newOutput
  66       -- let state1 = runOneInput state "take tablet"
  67       -- print state0
  68       -- print state
  69       -- print state1
  70
  71       stateF <- adventureHarness state1
  72       return ()
  73       -- print $ stateF ^. ssInputs
  74       -- print $ stateF ^. ssOutputs
  75       -- print $ stateF ^. ssState
  76       -- let machs = stateF ^. ssMachines
  77       -- let machPairs = zipWith (==) machs $ tail machs
  78       -- print $ machPairs
  79
  80 emptyState :: IO SynacorState
  81 emptyState =
  82   do  mem <- getMemory
  83       let machine = makeMachine mem
  84       return $ SynacorState
  85                 { _ssMachines = [machine]
  86                 , _ssInputs = []
  87                 , _ssOutputs = []
  88                 , _ssContinue = True
  89                 , _ssUnsaved = False
  90                 , _ssState = [Runnable]
  91                 , _ssTracing = False
  92                 , _ssDumpFile = ""
  93               }
  94      -- [machine] [] [] True False [Runnable]
  95
  96 adventureHarness :: SynacorState -> IO SynacorState
  97 adventureHarness state =
  98   do command <- prompt "> "
  99      state' <- handleCommand command state
 100      let traceAndOutput = head $ state' ^. ssOutputs
 101      let (newOutput, tracing) = spliceOut traceAndOutput
 102      putStrLn newOutput
 103      when (state' ^. ssTracing)
 104           (appendFile (state' ^. ssDumpFile) $ unlines tracing)
 105      if (state' ^. ssContinue)
 106         then (adventureHarness state')
 107         else return state'
 108
 109
 110 spliceOut :: String -> (String, [String])
 111 spliceOut s = doingOut s "" []
 112   where doingOut s out traces
 113           | null s = (reverse out, reverse traces)
 114           | ">> " `isPrefixOf` s = doingTrace (drop 3 s) out traces ""
 115           | otherwise = doingOut (tail s) (head s : out) traces
 116         doingTrace s out traces tr
 117           | "<<" `isPrefixOf` s = doingOut (drop 2 s) out (reverse tr : traces)
 118           | otherwise = doingTrace (tail s) out traces (head s : tr)
 119
 120
 121 handleCommand :: String -> SynacorState -> IO SynacorState
 122 handleCommand ":quit" state = return $ state & ssContinue .~ False
 123 handleCommand ":save" state =
 124   do  filename <- prompt "Save as? "
 125       let inputs = unlines $ tail $ reverse $ state ^. ssInputs
 126       writeFile filename inputs
 127       return $ state & ssUnsaved .~ True
 128 handleCommand ":load" state =
 129   do  filename <- prompt "From? "
 130       machineInput <- readFile filename
 131       let inputs = lines machineInput
 132       initialState <- emptyState
 133       let nonComments = filter (\i -> head i /= '#') inputs
 134       let state = foldl' runOneInput initialState ("" : nonComments)
 135       return $ state & ssUnsaved .~ False
 136 handleCommand ":undo" state =
 137       return $ state & ssMachines %~ tail
 138                      & ssInputs %~ tail
 139                      & ssOutputs %~ tail
 140                      & ssContinue .~ True
 141                      & ssUnsaved .~ True
 142                      & ssState %~ tail
 143 handleCommand ":recap" state =
 144   do let inputs = take 3 $ state ^. ssInputs
 145      let outputs = "" : (tail $ take 3 $ state ^. ssOutputs)
 146      let inOuts = reverse $ zip inputs outputs
 147      forM_ inOuts (\(i, o) ->
 148         do putStrLn ("#> " ++ i)
 149            putStrLn o
 150         )
 151      return state
 152 handleCommand ":trace" state =
 153   do  filename <- prompt "Dump to? "
 154       return $ state & ssTracing .~ True & ssDumpFile .~ filename
 155 handleCommand ":untrace" state =
 156   return $ state & ssTracing .~ False & ssDumpFile .~ ""
 157 handleCommand ":poke8"  state =
 158   do let machines = state ^. ssMachines
 159      let machine = head machines
 160      let machine' = machine & registers . ix 7 .~ 1
 161      return $ state & ssMachines .~ (machine' : (tail machines))
 162 handleCommand command state = return $ runOneInput state command
 163
 164
 165 runWithoutInput :: SynacorState -> SynacorState
 166 runWithoutInput state = state & ssMachines %~ (machine' :)
 167                                 -- & ssInputs %~ (input :)
 168                                 & ssOutputs %~ ((showOutput output) :)
 169                                 & ssContinue .~ True
 170                                 & ssUnsaved .~ True
 171                                 & ssState %~ (exState :)
 172   where machine = head $ state ^. ssMachines
 173         (exState, machine', output) = runMachine [] (machine & inputIndex .~ 0)
 174
 175 runOneInput :: SynacorState -> String -> SynacorState
 176 runOneInput state input = state & ssMachines %~ (machine' :)
 177                                 & ssInputs %~ (input :)
 178                                 & ssOutputs %~ ((showOutput output) :)
 179                                 & ssContinue .~ True
 180                                 & ssUnsaved .~ True
 181                                 & ssState %~ (exState :)
 182   where machine0 = head $ state ^. ssMachines
 183         machine = if (state ^. ssTracing)
 184                      then machine0 & tracing .~ True
 185                      else machine0 & tracing .~ False
 186         inputW = wordify (input ++ "\n")
 187         (exState, machine', output) = runMachine inputW (machine & inputIndex .~ 0)
 188         -- output' = trace ("runone " ++ (show (machine == machine')) ++ " " ++ (show exState) ++ " " ++ (showOutput output)) output
 189
 190
 191 prompt :: String -> IO String
 192 prompt text = do
 193     putStr text
 194     hFlush stdout
 195     getLine
 196
 197 wordify :: String -> [Word16]
 198 wordify cs = fmap (fromIntegral . ord) cs
 199
 200 showOutput :: [Word16] -> String
 201 showOutput output = fmap (chr . fromInteger . fromIntegral) output
 202
 203 getMemory :: IO Memory
 204 getMemory = do
 205   input <- BL.readFile "challenge.bin"
 206   let cells = runGet getCells input
 207   return $ M.fromList $ zip [0..] cells
 208
 209 getCells :: Get [Word16]
 210 getCells = do
 211   empty <- isEmpty
 212   if empty
 213     then return []
 214     else do cell <- getWord16le
 215             cells <- getCells
 216             return (cell:cells)
 217
 218