gameServer/EngineInteraction.hs
author nemo
Mon, 24 Jun 2013 22:11:07 -0400
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child 9304 3f4c3fc146c2
permissions -rw-r--r--
I should have specified locals
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{-# LANGUAGE OverloadedStrings #-}
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module EngineInteraction where
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import qualified Data.Set as Set
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import Control.Monad
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import qualified Codec.Binary.Base64 as Base64
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import qualified Data.ByteString.Char8 as B
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import qualified Data.ByteString as BW
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import qualified Data.Map as Map
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import qualified Data.List as L
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import Data.Word
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import Data.Bits
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import Control.Arrow
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-------------
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import CoreTypes
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import Utils
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toEngineMsg :: B.ByteString -> B.ByteString
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toEngineMsg msg = B.pack $ Base64.encode (fromIntegral (BW.length msg) : BW.unpack msg)
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fromEngineMsg :: B.ByteString -> Maybe B.ByteString
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fromEngineMsg msg = liftM BW.pack (Base64.decode (B.unpack msg) >>= removeLength)
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    where
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        removeLength (x:xs) = if length xs == fromIntegral x then Just xs else Nothing
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        removeLength _ = Nothing
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splitMessages :: B.ByteString -> [B.ByteString]
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splitMessages = L.unfoldr (\b -> if B.null b then Nothing else Just $ B.splitAt (1 + fromIntegral (BW.head b)) b)
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checkNetCmd :: B.ByteString -> (B.ByteString, B.ByteString)
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checkNetCmd msg = check decoded
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    where
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        decoded = liftM (splitMessages . BW.pack) $ Base64.decode $ B.unpack msg
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        check Nothing = (B.empty, B.empty)
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        check (Just msgs) = let (a, b) = (filter isLegal msgs, filter isNonEmpty a) in (encode a, encode b)
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        encode = B.pack . Base64.encode . BW.unpack . B.concat
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        isLegal m = (B.length m > 1) && (flip Set.member legalMessages . B.head . B.tail $ m)
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        isNonEmpty = (/=) '+' . B.head . B.tail
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        legalMessages = Set.fromList $ "M#+LlRrUuDdZzAaSjJ,sNpPwtghbc12345" ++ slotMessages
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        slotMessages = "\128\129\130\131\132\133\134\135\136\137\138"
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replayToDemo :: [TeamInfo]
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        -> Map.Map B.ByteString B.ByteString
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        -> Map.Map B.ByteString [B.ByteString]
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        -> [B.ByteString]
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        -> [B.ByteString]
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replayToDemo teams mapParams params msgs = concat [
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        [em "TD"]
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        , maybeScript
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        , maybeMap
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        , [eml ["etheme ", head $ params Map.! "THEME"]]
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        , [eml ["eseed ", mapParams Map.! "SEED"]]
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        , [eml ["e$gmflags ", showB gameFlags]]
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        , schemeFlags
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        , [eml ["e$template_filter ", mapParams Map.! "TEMPLATE"]]
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        , [eml ["e$mapgen ", mapgen]]
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        , mapgenSpecific
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        , concatMap teamSetup teams
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        , msgs
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        , [em "!"]
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        ]
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    where
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        em = toEngineMsg
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        eml = em . B.concat
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        mapGenTypes = ["+rnd+", "+maze+", "+drawn+"]
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        maybeScript = let s = head $ params Map.! "SCRIPT" in if s == "Normal" then [] else [eml ["escript Scripts/Multiplayer/", s, ".lua"]]
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        maybeMap = let m = mapParams Map.! "MAP" in if m `elem` mapGenTypes then [] else [eml ["emap ", m]]
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        scheme = tail $ params Map.! "SCHEME"
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        mapgen = mapParams Map.! "MAPGEN"
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        mapgenSpecific = case mapgen of
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            "+maze+" -> [eml ["e$maze_size ", head $ params Map.! "MAZE_SIZE"]]
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            "+drawn" -> drawnMapData . head $ params Map.! "DRAWNMAP"
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            _ -> []
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        gameFlags :: Word32
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        gameFlags = foldl (\r (b, f) -> if b == "false" then r else r .|. f) 0 $ zip scheme gameFlagConsts
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        schemeFlags = map (\(v, (n, m)) -> eml [n, " ", showB $ (readInt_ v) * m])
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            $ filter (\(_, (n, _)) -> not $ B.null n)
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            $ zip (drop (length gameFlagConsts) scheme) schemeParams
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        ammoStr :: B.ByteString
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        ammoStr = head . tail $ params Map.! "AMMO"
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        ammo = let l = B.length ammoStr `div` 4; ((a, b), (c, d)) = (B.splitAt l . fst &&& B.splitAt l . snd) . B.splitAt (l * 2) $ ammoStr in
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                   (map (\(x, y) -> eml [x, " ", y]) $ zip ["eammloadt", "eammprob", "eammdelay", "eammreinf"] [a, b, c, d])
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                   ++ [em "eammstore" | scheme !! 14 == "true" || scheme !! 20 == "false"]
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        initHealth = scheme !! 27
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        teamSetup :: TeamInfo -> [B.ByteString]
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        teamSetup t = (++) ammo $
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                eml ["eaddteam <hash> ", showB $ (1 + (readInt_ $ teamcolor t) :: Int) * 2113696, " ", teamname t]
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                : em "erdriven"
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                : eml ["efort ", teamfort t]
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                : take (2 * hhnum t) (
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                    concatMap (\(HedgehogInfo hname hhat) -> [
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                            eml ["eaddhh ", showB $ difficulty t, " ", initHealth, " ", hname]
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                            , eml ["ehat ", hhat]
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                            ])
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                        $ hedgehogs t
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                        )
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drawnMapData :: B.ByteString -> [B.ByteString]
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drawnMapData = error "drawnMapData"
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schemeParams :: [(B.ByteString, Int)]
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schemeParams = [
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      ("e$damagepct", 1)
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    , ("e$turntime", 1000)
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    , ("", 0)
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    , ("e$sd_turns", 1)
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    , ("e$casefreq", 1)
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    , ("e$minestime", 1000)
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    , ("e$minesnum", 1)
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    , ("e$minedudpct", 1)
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    , ("e$explosives", 1)
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    , ("e$healthprob", 1)
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    , ("e$hcaseamount", 1)
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    , ("e$waterrise", 1)
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    , ("e$healthdec", 1)
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    , ("e$ropepct", 1)
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    , ("e$getawaytime", 1)
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    ]
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gameFlagConsts :: [Word32]
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gameFlagConsts = [
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          0x00001000
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        , 0x00000010
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        , 0x00000004
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        , 0x00000008
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        , 0x00000020
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        , 0x00000040
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        , 0x00000080
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        , 0x00000100
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        , 0x00000200
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        , 0x00000400
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        , 0x00000800
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        , 0x00002000
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        , 0x00004000
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        , 0x00008000
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        , 0x00010000
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        , 0x00020000
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        , 0x00040000
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        , 0x00080000
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        , 0x00100000
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        , 0x00200000
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        , 0x00400000
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        , 0x00800000
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        , 0x01000000
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   152
        , 0x02000000
42d2565b5700 Converter from game parameters to engine commands, not finished yet
unc0rr
parents: 8479
diff changeset
   153
        , 0x04000000
42d2565b5700 Converter from game parameters to engine commands, not finished yet
unc0rr
parents: 8479
diff changeset
   154
        ]
8479
8d71109b04d2 Some work on loading replay and interaction with checker
unc0rr
parents: 7766
diff changeset
   155
8d71109b04d2 Some work on loading replay and interaction with checker
unc0rr
parents: 7766
diff changeset
   156
8d71109b04d2 Some work on loading replay and interaction with checker
unc0rr
parents: 7766
diff changeset
   157