Fix bee targeting fail across wrap world edge
Previously, the bee always aimed for the light area, no matter where you actually put the target. It also got confused whenever it flew across the wrap world edge.
How the bee works now:
1) The placed bee target is *not* recalculated when it was placed in the "gray" part of the wrap world edge. This allows for more fine-tuning.
1a) Place target in light area: bee aims for target light area
1b) Place target in gray area: bee aims for target, but flies to gray area first
2) Bee target is recalculated whenever bee passes the wrap world edge.
{-
* 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.
\-}
{-# 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