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Nicole Dresselhaus 2014-05-30 15:28:09 +02:00
parent b3323ef054
commit 3db6d6f9eb
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1 changed files with 12 additions and 12 deletions
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src/Main.hs
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@ -242,25 +242,25 @@ run = do
-} -}
(mt,tc,sleepAmount,frameTime) <- liftIO $ do (mt,tc,sleepAmount,frameTime) <- liftIO $ do
let double = fromRational.toRational :: (Real a) => a -> Double let double = fromRational.toRational :: (Real a) => a -> Double
targetFramerate = 60.0 targetFramerate = 60.0
targetFrametime = 1.0/targetFramerate targetFrametime = 1.0/targetFramerate
--targetFrametimeμs = targetFrametime * 1000000.0 --targetFrametimeμs = targetFrametime * 1000000.0
now <- getCurrentTime now <- getCurrentTime
let diff = diffUTCTime now (state ^. io.clock) -- get time-diffs let diff = diffUTCTime now (state ^. io.clock) -- get time-diffs
title = unwords ["Pioneers @ ",show ((round . double $ 1.0/diff)::Int),"fps"] title = unwords ["Pioneers @ ",show ((round . double $ 1.0/diff)::Int),"fps"]
ddiff = double diff ddiff = double diff
SDL.setWindowTitle (env ^. windowObject) title SDL.setWindowTitle (env ^. windowObject) title
let sleepAmount = floor ((targetFrametime - double diff)*1000000) :: Int -- get time until next frame in microseconds let sleepAmount = floor ((targetFrametime - double diff)*1000000) :: Int -- get time until next frame in microseconds
clockFactor = (state ^. io.tessClockFactor) clockFactor = (state ^. io.tessClockFactor)
tessChange tessChange
| (clockFactor < (75*targetFrametime)) && (state ^. gl.glMap.stateTessellationFactor < 5) = ((+)1 :: Int -> Int) | (clockFactor < (75*targetFrametime)) && (state ^. gl.glMap.stateTessellationFactor < 5) = ((+)1 :: Int -> Int)
-- > last 100 frames had > 25% leftover (on avg.) -- > last 100 frames had > 25% leftover (on avg.)
| (clockFactor > (110*targetFrametime)) && (state ^. gl.glMap.stateTessellationFactor > 1) = (flip (-) 1 :: Int -> Int) | (clockFactor > (110*targetFrametime)) && (state ^. gl.glMap.stateTessellationFactor > 1) = (flip (-) 1 :: Int -> Int)
-- > last 100 frames had < 90% of target-fps -- > last 100 frames had < 90% of target-fps
| otherwise = ((+)0 :: Int -> Int) -- 0ms > x > 10% -> keep settings | otherwise = ((+)0 :: Int -> Int) -- 0ms > x > 10% -> keep settings
when (sleepAmount > 0) $ threadDelay sleepAmount when (sleepAmount > 0) $ threadDelay sleepAmount
now' <- getCurrentTime now' <- getCurrentTime
return (now',tessChange,sleepAmount,ddiff) return (now',tessChange,sleepAmount,ddiff)
-- set state with new clock-time -- set state with new clock-time
--liftIO $ putStrLn $ unwords ["clockFactor:",show (state ^. io.tessClockFactor),"\ttc:", show (tc (state ^. gl.glMap.stateTessellationFactor)),"\tsleep ",show frameTime,"ms"] --liftIO $ putStrLn $ unwords ["clockFactor:",show (state ^. io.tessClockFactor),"\ttc:", show (tc (state ^. gl.glMap.stateTessellationFactor)),"\tsleep ",show frameTime,"ms"]