With this change, SDL will probably report more screen resolutions on dual-monitor configurations
module Miscutils where
import IO
import Control.Concurrent.STM
import Data.Word
import Data.Char
import Data.List
import Maybe (fromJust)
data ClientInfo =
ClientInfo
{
chan :: TChan [String],
handle :: Handle,
nick :: String,
protocol :: Word16,
room :: String,
isMaster :: Bool
}
instance Eq ClientInfo where
a1 == a2 = handle a1 == handle a2
data TeamInfo =
TeamInfo
{
teamname :: String
}
data RoomInfo =
RoomInfo
{
name :: String,
password :: String,
teams :: [TeamInfo]
}
type ClientsTransform = [ClientInfo] -> [ClientInfo]
type RoomsTransform = [RoomInfo] -> [RoomInfo]
type HandlesSelector = ClientInfo -> [ClientInfo] -> [RoomInfo] -> [Handle]
type CmdHandler = ClientInfo -> [ClientInfo] -> [RoomInfo] -> [String] -> (ClientsTransform, RoomsTransform, HandlesSelector, [String])
roomByName :: String -> [RoomInfo] -> RoomInfo
roomByName roomName rooms = fromJust $ find (\room -> roomName == name room) rooms
tselect :: [ClientInfo] -> STM ([String], ClientInfo)
tselect = foldl orElse retry . map (\ci -> (flip (,) ci) `fmap` readTChan (chan ci))
maybeRead :: Read a => String -> Maybe a
maybeRead s = case reads s of
[(x, rest)] | all isSpace rest -> Just x
_ -> Nothing
deleteBy2t :: (a -> b -> Bool) -> b -> [a] -> [a]
deleteBy2t _ _ [] = []
deleteBy2t eq x (y:ys) = if y `eq` x then ys else y : deleteBy2t eq x ys
deleteFirstsBy2t :: (a -> b -> Bool) -> [a] -> [b] -> [a]
deleteFirstsBy2t eq = foldl (flip (deleteBy2t eq))
sameRoom :: HandlesSelector
sameRoom client clients rooms = map handle $ filter (\ci -> room ci == room client) clients
othersInRoom :: HandlesSelector
othersInRoom client clients rooms = map handle $ filter (client /=) $ filter (\ci -> room ci == room client) clients
fromRoom :: String -> HandlesSelector
fromRoom roomName _ clients _ = map handle $ filter (\ci -> room ci == roomName) clients
clientOnly :: HandlesSelector
clientOnly client _ _ = [handle client]
noChangeClients :: ClientsTransform
noChangeClients a = a
modifyClient :: ClientInfo -> ClientsTransform
modifyClient client (cl:cls) =
if cl == client then
client : cls
else
cl : (modifyClient client cls)
noChangeRooms :: RoomsTransform
noChangeRooms a = a
addRoom :: RoomInfo -> RoomsTransform
addRoom room rooms = room:rooms
removeRoom :: String -> RoomsTransform
removeRoom roomname rooms = filter (\rm -> roomname /= name rm) rooms
badCmd :: [String]
badCmd = ["ERROR", "Bad command, state or incorrect parameter"]