pituicat/extern/affection/examples/example00/Main.hs
nek0 58fd609095 Add 'extern/affection/' from commit 'fc6bfa1ca5307e915d44eeac507ccc56ba01b487'
git-subtree-dir: extern/affection
git-subtree-mainline: 9e89962af0
git-subtree-split: fc6bfa1ca5
2020-08-30 17:40:22 +02:00

196 lines
5.2 KiB
Haskell

{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE TypeFamilies #-}
module Main where
import Affection as A
import Control.Concurrent.STM
import Control.Concurrent.MVar
import Control.Monad
import qualified SDL
import Data.Maybe (isJust, fromJust)
import Data.String
data StateData = StateData
{ sdSubs :: Subsystems
, sdJoys :: MVar [SDL.Joystick]
, doNextStep :: MVar Bool
}
instance Affectionate StateData where
loadState = load
preLoop = pre
handleEvents = handle
update = Main.update
draw = Main.draw
cleanUp = clean
hasNextStep = liftIO . readMVar . doNextStep
data Subsystems = Subsystems
{ subWindow :: Main.Window
, subMouse :: Main.Mouse
, subKeyboard :: Main.Keyboard
, subJoystick :: Main.Joystick
}
newtype Window = Window (TVar [(UUID, WindowMessage -> Affection ())])
newtype Mouse = Mouse (TVar [(UUID, MouseMessage -> Affection ())])
newtype Keyboard = Keyboard (TVar [(UUID, KeyboardMessage -> Affection ())])
newtype Joystick = Joystick (TVar [(UUID, JoystickMessage -> Affection ())])
instance Participant Main.Window where
type Mesg Main.Window = WindowMessage
partSubscribers (Window t) = generalSubscribers t
partSubscribe (Window t) = generalSubscribe t
partUnSubscribe (Window t) = generalUnSubscribe t
instance SDLSubsystem Main.Window where
consumeSDLEvents = consumeSDLWindowEvents
instance Participant Mouse where
type Mesg Mouse = MouseMessage
partSubscribers (Mouse t) = generalSubscribers t
partSubscribe (Mouse t) = generalSubscribe t
partUnSubscribe (Mouse t) = generalUnSubscribe t
instance SDLSubsystem Mouse where
consumeSDLEvents = consumeSDLMouseEvents
instance Participant Keyboard where
type Mesg Keyboard = KeyboardMessage
partSubscribers (Keyboard t) = generalSubscribers t
partSubscribe (Keyboard t) = generalSubscribe t
partUnSubscribe (Keyboard t) = generalUnSubscribe t
instance SDLSubsystem Keyboard where
consumeSDLEvents = consumeSDLKeyboardEvents
instance Participant Joystick where
type Mesg Joystick = JoystickMessage
partSubscribers (Joystick t) = generalSubscribers t
partSubscribe (Joystick t) = generalSubscribe t
partUnSubscribe (Joystick t) = generalUnSubscribe t
instance SDLSubsystem Joystick where
consumeSDLEvents = consumeSDLJoystickEvents
main :: IO ()
main = do
logIO Debug "Starting"
let conf = AffectionConfig
{ initComponents = All
, windowTitle = "affection: example00"
, windowConfigs =
[
( 0
, SDL.defaultWindow
{ SDL.windowGraphicsContext = SDL.OpenGLContext SDL.defaultOpenGL
{ SDL.glProfile = SDL.Core SDL.Normal 3 3
}
}
, SDL.Windowed
)
]
} :: AffectionConfig StateData
withAffection conf
load :: IO StateData
load =
StateData <$> (Subsystems
<$> (Window <$> newTVarIO [])
<*> (Mouse <$> newTVarIO [])
<*> (Keyboard <$> newTVarIO [])
<*> (Joystick <$> newTVarIO [])
)
<*> newMVar []
<*> newMVar True
pre :: StateData -> Affection ()
pre sd = do
_ <- partSubscribe (subKeyboard $ sdSubs sd) (exitOnQ (doNextStep sd))
_ <- partSubscribe (subWindow $ sdSubs sd) (exitOnWindowClose (doNextStep sd))
_ <- partSubscribe (subJoystick $ sdSubs sd) (joyConnectDisconnect (sdJoys sd))
return ()
exitOnQ :: MVar Bool -> KeyboardMessage -> Affection ()
exitOnQ nextStep (MsgKeyboardEvent _ _ _ _ sym) =
case SDL.keysymKeycode sym of
SDL.KeycodeQ -> do
liftIO $ logIO Debug "Yo dog I heard..."
void $ liftIO $ swapMVar nextStep False
_ -> return ()
exitOnWindowClose :: MVar Bool -> WindowMessage -> Affection ()
exitOnWindowClose nextStep wm =
case wm of
MsgWindowClose _ _ -> do
liftIO $ logIO Debug "I heard another one..."
void $ liftIO $ swapMVar nextStep False
_ -> return ()
joyConnectDisconnect :: MVar [SDL.Joystick] -> JoystickMessage -> Affection ()
joyConnectDisconnect mvjs msg = do
mj <- joystickAutoConnect msg
when (isJust mj) $ do
js <- liftIO $ readMVar mvjs
void $ liftIO $ swapMVar mvjs (fromJust mj : js)
js <- liftIO $ readMVar mvjs
njs <- joystickAutoDisconnect js msg
liftIO $ putMVar mvjs njs
handle :: StateData -> [SDL.EventPayload] -> Affection ()
handle sd es = do
let (Subsystems a b c d) = sdSubs sd
leftovers <- consumeSDLEvents a
=<< consumeSDLEvents b
=<< consumeSDLEvents c
=<< consumeSDLEvents d es
mapM_ (\e -> liftIO $ logIO Verbose $ "LEFTOVER: " <> fromString (show e))
leftovers
update :: StateData -> Double -> Affection ()
update _ _ = return ()
draw :: StateData -> Affection ()
draw _ = return ()
clean :: StateData -> IO ()
clean _ = return ()
generalSubscribers
:: TVar [(UUID, msg -> Affection ())]
-> Affection [msg -> Affection ()]
generalSubscribers t = do
subTups <- liftIO $ readTVarIO t
return $ map snd subTups
generalSubscribe
:: TVar [(UUID, msg -> Affection ())]
-> (msg -> Affection())
-> Affection UUID
generalSubscribe t funct = do
uuid <- genUUID
liftIO $ atomically $ modifyTVar' t ((uuid, funct) :)
return uuid
generalUnSubscribe
:: TVar [(UUID, msg -> Affection ())]
-> UUID
-> Affection ()
generalUnSubscribe t uuid =
liftIO $ atomically $ modifyTVar' t (filter (\(u, _) -> u /= uuid))