gameServer/Votes.hs
author nemo
Tue, 28 Jan 2014 23:14:02 -0500
changeset 10088 6d4cd54dd343
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child 10090 a471a7bbc339
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tweaks
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{-# LANGUAGE OverloadedStrings #-}
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module Votes where
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import Control.Monad.Reader
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import Control.Monad.State
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import ServerState
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import qualified Data.ByteString.Char8 as B
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import qualified Data.List as L
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import Data.Maybe
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-------------------
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import Utils
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import CoreTypes
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import HandlerUtils
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import Actions
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voted :: Bool -> Reader (ClientIndex, IRnC) [Action]
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voted vote = do
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    cl <- thisClient
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    rm <- thisRoom
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    uid <- liftM clUID thisClient
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    if isNothing $ voting rm then
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        return [AnswerClients [sendChan cl] ["CHAT", "[server]", loc "There's no voting going on"]]
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    else if uid `L.notElem` entitledToVote (fromJust $ voting rm) then
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        return []
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    else if uid `L.elem` map fst (votes . fromJust $ voting rm) then
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        return [AnswerClients [sendChan cl] ["CHAT", "[server]", loc "You already have voted"]]
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    else
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        actOnVoting . fromJust . liftM (\v -> v{votes = (uid, vote):votes v}) $ voting rm
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    where
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    actOnVoting :: Voting -> Reader (ClientIndex, IRnC) [Action]
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    actOnVoting vt = do
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        let (contra, pro) = L.partition snd $ votes vt
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        let v = (length $ entitledToVote vt) `div` 2 + 1
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        if length contra >= v then
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            closeVoting
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        else if length pro >= v then do
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            act $ voteType vt
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            closeVoting
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        else
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            return [ModifyRoom $ \r -> r{voting = Just vt}]
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    closeVoting = do
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        chans <- roomClientsChans
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        return [
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            AnswerClients chans ["CHAT", "[server]", loc "Voting closed"]
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            , ModifyRoom (\r -> r{voting = Nothing})
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            ]
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    act (VoteKick nickname) = do
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        (thisClientId, rnc) <- ask
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        maybeClientId <- clientByNick nickname
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        rm <- thisRoom
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        let kickId = fromJust maybeClientId
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        let kickCl = rnc `client` kickId
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        let sameRoom = clientRoom rnc thisClientId == clientRoom rnc kickId
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        return
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            [KickRoomClient kickId |
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                isJust maybeClientId
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                && sameRoom
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                && ((isNothing $ gameInfo rm) || teamsInGame kickCl == 0)
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            ]
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startVote :: VoteType -> Reader (ClientIndex, IRnC) [Action]
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startVote vt = do
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    (ci, rnc) <- ask
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    cl <- thisClient
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    rm <- thisRoom
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    chans <- roomClientsChans
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    let uids = map (clUID . client rnc) . roomClients rnc $ clientRoom rnc ci
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    if isJust $ voting rm then
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        return []
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    else
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        liftM ([ModifyRoom (\r -> r{voting = Just (newVoting vt){entitledToVote = uids}})
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        , AnswerClients chans ["CHAT", "[server]", B.concat [loc "New voting started", ": ", voteInfo vt]]
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        ] ++ ) $ voted True
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checkVotes :: StateT ServerState IO ()
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checkVotes = undefined
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voteInfo :: VoteType -> B.ByteString
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voteInfo (VoteKick n) = B.concat [loc "kick", " ", n]
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