author | koda |
Sat, 09 Mar 2013 19:23:00 +0100 | |
changeset 8706 | 9f5df5dc44a0 |
parent 8541 | 0cd63b963330 |
child 9304 | 3f4c3fc146c2 |
permissions | -rw-r--r-- |
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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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, 0x02000000 |
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, 0x04000000 |
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] |
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156 |
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157 |