module Graphics.Gloss.Internals.Interface.Animate
(animateInWindow)
where
import Graphics.Gloss.Data.Color
import Graphics.Gloss.Data.Picture
import Graphics.Gloss.Internals.Render.Picture
import Graphics.Gloss.Internals.Render.ViewPort
import Graphics.Gloss.Internals.Interface.Window
import Graphics.Gloss.Internals.Interface.Common.Exit
import Graphics.Gloss.Internals.Interface.ViewPort
import Graphics.Gloss.Internals.Interface.ViewPort.KeyMouse
import Graphics.Gloss.Internals.Interface.ViewPort.Motion
import Graphics.Gloss.Internals.Interface.ViewPort.Reshape
import Graphics.Gloss.Internals.Interface.Animate.Timing
import qualified Graphics.Gloss.Internals.Render.Options as RO
import qualified Graphics.Gloss.Internals.Interface.ViewPort.ControlState as VPC
import qualified Graphics.Gloss.Internals.Interface.Animate.State as AN
import qualified Graphics.Gloss.Internals.Interface.Callback as Callback
import qualified Graphics.UI.GLUT as GLUT
import Data.IORef
import Control.Monad
import System.Mem
animateInWindow
:: String
-> (Int, Int)
-> (Int, Int)
-> Color
-> (Float -> Picture)
-> IO ()
animateInWindow name size pos backColor frameFun
= do
viewSR <- newIORef viewPortInit
viewControlSR <- newIORef VPC.stateInit
renderSR <- newIORef RO.optionsInit
animateSR <- newIORef AN.stateInit
let displayFun = do
time <- animateSR `getsIORef` AN.stateAnimateTime
let timeS = (fromIntegral time / 1000)
let picture = frameFun timeS
renderS <- readIORef renderSR
viewS <- readIORef viewSR
withViewPort
viewS
(renderPicture renderS viewS picture)
performGC
let callbacks
= [ Callback.Display (animateBegin animateSR)
, Callback.Display displayFun
, Callback.Display (animateEnd animateSR)
, Callback.Idle (GLUT.postRedisplay Nothing)
, callback_exit ()
, callback_viewPort_keyMouse viewSR viewControlSR
, callback_viewPort_motion viewSR viewControlSR
, callback_viewPort_reshape ]
createWindow name size pos backColor callbacks
getsIORef :: IORef a -> (a -> r) -> IO r
getsIORef ref fun
= liftM fun $ readIORef ref