always draw border on terrain if there is only a map mask and no map image. this is a workaround for the fact that space campaign masks use white (lfObject) color instead of black (lfBasic)
{-
* Hedgewars, a free turn based strategy game
* Copyright (c) 2004-2014 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.
\-}
{-# LANGUAGE BangPatterns #-}
module JoinsMonitor(
JoinsMonitor
, newJoinMonitor
, cleanup
, joinsSentry
) where
import qualified Data.Map as Map
import Data.Time
import Data.IORef
import qualified Data.ByteString as B
import Data.Maybe
import Control.Monad
newtype JoinsMonitor = JoinsMonitor (IORef (Map.Map B.ByteString [UTCTime]))
newJoinMonitor :: IO JoinsMonitor
newJoinMonitor = do
ioref <- newIORef Map.empty
return (JoinsMonitor ioref)
cleanup :: JoinsMonitor -> UTCTime -> IO ()
cleanup (JoinsMonitor ref) time = modifyIORef ref f
where
f = Map.mapMaybe (\v -> let v' = takeWhile (\t -> diffUTCTime time t < 60*60) v in if null v' then Nothing else Just v')
joinsSentry :: JoinsMonitor -> B.ByteString -> UTCTime -> IO Bool
joinsSentry (JoinsMonitor ref) host time = do
m <- readIORef ref
let lastJoins = map (diffUTCTime time) $ Map.findWithDefault [] host m
let last30sec = length $ takeWhile (< 30) lastJoins
let last2min = length $ takeWhile (< 120) lastJoins
let last10min = length $ takeWhile (< 600) lastJoins
let pass = last30sec < 2 && last2min < 3 && last10min < 5
when pass $ writeIORef ref $ Map.alter (Just . (:) time . fromMaybe []) host m
return pass