haskelloids/src/Init.hs
2017-12-19 06:49:41 +01:00

88 lines
2.1 KiB
Haskell

{-# LANGUAGE ForeignFunctionInterface #-}
module Init where
import Affection as A
import SDL (($=))
import qualified SDL
import qualified Data.Set as S
import Data.Maybe
import Control.Monad (when)
import Control.Monad.IO.Class (liftIO)
import Control.Concurrent.STM
import System.Random
import System.Exit (exitFailure)
import Linear
import NanoVG hiding (V2)
import Foreign.C.Types (CInt(..))
-- Internal imports
import Types
foreign import ccall unsafe "glewInit"
glewInit :: IO CInt
load :: IO UserData
load = do
liftIO $ logIO A.Debug "init GLEW"
_ <- glewInit
liftIO $ logIO A.Debug "loading state"
liftIO $ logIO A.Debug "create context"
nvgCtx <- createGL3 (S.fromList [Antialias, StencilStrokes, NanoVG.Debug])
liftIO $ logIO A.Debug "load ship image"
mshipImage <- createImage nvgCtx (FileName "assets/ship.png") 0
when (isNothing mshipImage) $ do
logIO Error "Failed loading image assets"
exitFailure
subs <- Subsystems
<$> (return . Window =<< newTVarIO [])
<*> (return . Keyboard =<< newTVarIO [])
return UserData
{ ship = Ship
{ sPos = V2 400 300
, sVel = V2 0 0
, sRot = 0
, sImg = fromJust mshipImage
}
, haskelloids = []
, wonlost = Nothing
, state = Menu
, fade = FadeIn 1
, nano = nvgCtx
, subsystems = subs
}
-- _ <- SDL.setMouseLocationMode SDL.RelativeLocation
-- GL.depthFunc $= ust GL.Less
-- pane <- GL.genObjectName
-- GL.BindVertexArrayObject $= Just pane
-- verts <- GL.genObejctName
-- let vertCoord =
-- [ (-1), (-1), 0
-- , 1 , (-1), 0
-- , (-1), 1 , 0
-- , 1 , 1 , 0
-- , (-1), 1 , 0
-- , 1 , (-1), 0
-- ]
-- withArray vertCoord $ \ptr
-- GL.bufferData GL.ArrayBuffer $=
-- ( fromIntegral $ length vertCoord * 3 * sizeOf (0 :: Double)
-- , ptr
-- , GL.StaticDraw
-- )
-- GL.vertexAttribPointer (GL.AttribLocation 0) $=
-- ( GL.ToFloat
-- , GL.VertexArrayDescriptor 4 GL.Float 0 (plusPtr nullPtr 0)
-- )
-- GL.vertexAttribArray (GL.AttribLocation 0) $= GL.Enabled