pituicat/src/Affection/Types.hs

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{-# LANGUAGE GeneralizedNewtypeDeriving, DeriveFunctor #-}
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module Affection.Types
( Affection(..)
, AffectionConfig(..)
, AffectionData(..)
, AffectionStateInner(..)
, AffectionState(..)
, InitComponents(..)
, Angle(..)
-- | SDL reexports
, SDL.WindowConfig(..)
, SDL.WindowMode(..)
, SDL.EventPayload(..)
, SDL.InitFlags(..)
, SDL.Window(..)
, SDL.GLContext(..)
) where
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import qualified SDL.Init as SDL
import qualified SDL.Video as SDL
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import qualified SDL.Event as SDL
import qualified Data.Text as T
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import Data.Map.Strict as M
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import Control.Monad.IO.Class
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import Control.Monad.State.Strict
import qualified Control.Monad.Parallel as MP
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import System.Clock (TimeSpec)
import Foreign.Ptr (Ptr)
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import Affection.MessageBus.Message
-- | Configuration for the aplication. needed at startup.
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data AffectionConfig us = AffectionConfig
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{ initComponents :: InitComponents
-- ^ SDL components to initialize at startup
, windowTitle :: T.Text
-- ^ Window title
, windowConfig :: SDL.WindowConfig
-- ^ Window configuration
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, canvasSize :: Maybe (Int, Int)
-- ^ size of the texture canvas
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, initScreenMode :: SDL.WindowMode
-- ^ Window mode to start in
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, loadState :: IO us
-- ^ Provide your own load function to create this data.
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, preLoop :: Affection us ()
-- ^ Actions to be performed, before loop starts
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, eventLoop :: [SDL.EventPayload] -> Affection us ()
-- ^ Main update function. Takes fractions of a second as input.
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, updateLoop :: Double -> Affection us ()
-- ^ Main update function. Takes fractions of a second as input.
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, drawLoop :: Affection us ()
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-- ^ Function for updating graphics.
, cleanUp :: us -> IO ()
-- ^ Provide your own finisher function to clean your data.
}
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-- | Components to initialize in SDL.
data InitComponents
= All
| Only [SDL.InitFlag]
-- | Main type for defining the look, feel and action of the whole application.
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data AffectionData us = AffectionData
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{ quitEvent :: Bool -- ^ Loop breaker.
, userState :: us -- ^ State data provided by user
, drawWindow :: SDL.Window -- ^ SDL window
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, glContext :: SDL.GLContext -- ^ OpenGL rendering context
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, screenMode :: SDL.WindowMode -- ^ current screen mode
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, drawDimensions :: (Int, Int) -- ^ Dimensions of target surface
, drawStride :: Int -- ^ Stride of target buffer
, drawCPP :: Int -- ^ Number of components per pixel
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, elapsedTime :: Double -- ^ Elapsed time in seconds
, deltaTime :: Double -- ^ Elapsed time in seconds since last tick
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, sysTime :: TimeSpec -- ^ System time (NOT the time on the clock)
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, pausedTime :: Bool -- ^ Should the update loop be executed?
}
-- | Inner 'StateT' monad for the update state
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type AffectionStateInner us a = StateT us a
-- | Affection's state monad
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newtype AffectionState us m a = AffectionState
{ runState :: AffectionStateInner us m a }
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deriving (Functor, Applicative, Monad, MonadIO, MonadState us)
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instance MP.MonadParallel m => MP.MonadParallel (AffectionState us m)
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type Affection us a = AffectionState (AffectionData us) IO a
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type Angle = Double