gameServer/HandlerUtils.hs
author Wuzzy <Wuzzy2@mail.ru>
Tue, 24 Jul 2018 20:07:58 +0200
branch0.9.24
changeset 13550 d42237d16acf
parent 11046 47a8c19ecb60
child 15900 fc3cb23fd26f
permissions -rw-r--r--
Limit max droplet count to 50 (fix for 0.9.24 branch only) This fixes the issue with insane amounts of droplets in 0.9.24. It's temporary, the real fix is in default branch, but would be desyncing.

{-
 * Hedgewars, a free turn based strategy game
 * Copyright (c) 2004-2015 Andrey Korotaev <unC0Rr@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 \-}

module HandlerUtils where

import Control.Monad.Reader
import qualified Data.ByteString.Char8 as B
import Data.List

import RoomsAndClients
import CoreTypes


type CmdHandler = [B.ByteString] -> Reader (ClientIndex, IRnC) [Action]

thisClient :: Reader (ClientIndex, IRnC) ClientInfo
thisClient = do
    (ci, rnc) <- ask
    return $ rnc `client` ci

thisRoom :: Reader (ClientIndex, IRnC) RoomInfo
thisRoom = do
    (ci, rnc) <- ask
    let ri = clientRoom rnc ci
    return $ rnc `room` ri

clientNick :: Reader (ClientIndex, IRnC) B.ByteString
clientNick = liftM nick thisClient

roomOthersChans :: Reader (ClientIndex, IRnC) [ClientChan]
roomOthersChans = do
    (ci, rnc) <- ask
    let ri = clientRoom rnc ci
    return $ map (sendChan . client rnc) $ filter (/= ci) (roomClients rnc ri)

roomSameClanChans :: Reader (ClientIndex, IRnC) [ClientChan]
roomSameClanChans = do
    (ci, rnc) <- ask
    let ri = clientRoom rnc ci
    let otherRoomClients = map (client rnc) . filter (/= ci) $ roomClients rnc ri
    let cl = rnc `client` ci
    let sameClanClients = Prelude.filter (\c -> clientClan c == clientClan cl) otherRoomClients
    return $ map sendChan sameClanClients

roomClientsChans :: Reader (ClientIndex, IRnC) [ClientChan]
roomClientsChans = do
    (ci, rnc) <- ask
    let ri = clientRoom rnc ci
    return $ map (sendChan . client rnc) (roomClients rnc ri)

thisClientChans :: Reader (ClientIndex, IRnC) [ClientChan]
thisClientChans = do
    (ci, rnc) <- ask
    return [sendChan (rnc `client` ci)]

sameProtoChans :: Reader (ClientIndex, IRnC) [ClientChan]
sameProtoChans = do
    (ci, rnc) <- ask
    let p = clientProto (rnc `client` ci)
    return . map sendChan . filter (\c -> clientProto c == p) . map (client rnc) $ allClients rnc

answerClient :: [B.ByteString] -> Reader (ClientIndex, IRnC) [Action]
answerClient msg = liftM ((: []) . flip AnswerClients msg) thisClientChans

allRoomInfos :: Reader (a, IRnC) [RoomInfo]
allRoomInfos = liftM ((\irnc -> map (room irnc) $ allRooms irnc) . snd) ask

clientByNick :: B.ByteString -> Reader (ClientIndex, IRnC) (Maybe ClientIndex)
clientByNick n = do
    (_, rnc) <- ask
    let allClientIDs = allClients rnc
    return $ find (\clId -> let cl = client rnc clId in n == nick cl && not (isChecker cl)) allClientIDs


roomAdminOnly :: Reader (ClientIndex, IRnC) [Action] -> Reader (ClientIndex, IRnC) [Action]
roomAdminOnly h = thisClient >>= \cl -> if isMaster cl then h else return []


serverAdminOnly :: Reader (ClientIndex, IRnC) [Action] -> Reader (ClientIndex, IRnC) [Action]
serverAdminOnly h = thisClient >>= \cl -> if isAdministrator cl then h else return []