affection/src/Affection/Subsystems/AffectionKeyboard.hs
2017-12-15 17:58:55 +01:00

35 lines
952 B
Haskell

{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE FlexibleContexts #-}
module Affection.Subsystems.AffectionKeyboard where
import Affection.Types
import Affection.Util
import Affection.MessageBus
import Affection.Subsystems.Class
import Control.Concurrent.STM as STM
import Control.Monad.IO.Class (liftIO)
import qualified SDL
consumeSDLKeyboardEvents
:: (Participant ak KeyboardMessage us)
=> ak
-> [SDL.EventPayload]
-> Affection us [SDL.EventPayload]
consumeSDLKeyboardEvents ak = doConsume
where
doConsume [] = return []
doConsume (e:es) = do
ts <- getElapsedTime
case e of
SDL.KeyboardEvent dat -> do
partEmit ak (MsgKeyboardEvent
ts
(SDL.keyboardEventWindow dat)
(SDL.keyboardEventKeyMotion dat)
(SDL.keyboardEventRepeat dat)
(SDL.keyboardEventKeysym dat)
)
doConsume es
_ -> fmap (e :) (doConsume es)