gameServer/EngineInteraction.hs
author nemo
Sun, 09 Oct 2011 21:47:47 -0400
changeset 6116 93e04cddd08e
parent 6070 429b4637c8ad
child 6206 75e0d8169ba2
permissions -rw-r--r--
Aaaand another flag that used to be cleared here...

module EngineInteraction where

import qualified Data.Set as Set
import qualified Data.List as List
import Control.Monad
import qualified Codec.Binary.Base64 as Base64
import qualified Data.ByteString.Char8 as B
import qualified Data.ByteString as BW
-------------
import CoreTypes


toEngineMsg :: B.ByteString -> B.ByteString
toEngineMsg msg = B.pack $ Base64.encode (fromIntegral (BW.length msg) : BW.unpack msg)


fromEngineMsg :: B.ByteString -> Maybe B.ByteString
fromEngineMsg msg = liftM BW.pack (Base64.decode (B.unpack msg) >>= removeLength)
    where
        removeLength (x:xs) = if length xs == fromIntegral x then Just xs else Nothing
        removeLength _ = Nothing


checkNetCmd :: B.ByteString -> (Bool, Bool)
checkNetCmd msg = check decoded
    where
        decoded = fromEngineMsg msg
        check Nothing = (False, False)
        check (Just ms) | B.length ms > 0 = let m = B.head ms in (m `Set.member` legalMessages, m == '+')
                        | otherwise        = (False, False)
        legalMessages = Set.fromList $ "M#+LlRrUuDdZzAaSjJ,sFNpPwtghbc12345" ++ slotMessages
        slotMessages = "\128\129\130\131\132\133\134\135\136\137\138"

gameInfo2Replay :: GameInfo -> B.ByteString
gameInfo2Replay GameInfo{roundMsgs = rm,
        teamsAtStart = teams,
        giMapParams = params1,
        giParams = params2} = undefined