semantics, readability, relicense, initResource argument removal

src/Game.hs

@@ -9,36 +9,24 @@
  -}
 module Game (main) where
 
-import Game.Internal.LoadShaders
 import Game.Internal.Types
 import Game.Internal
 
-import Control.Concurrent    (threadDelay)
-import Control.Lens          ((^.), (+~), (&), (%~))
-import Control.Monad         (when)
-import Data.Fixed            (mod')
-import Data.IORef            (atomicModifyIORef', IORef, modifyIORef', newIORef, readIORef, writeIORef)
-import Data.List             (delete)
-import Foreign.Marshal.Array (withArray)
-import Foreign.Ptr           (nullPtr, plusPtr)
-import Foreign.Storable      (sizeOf, Storable)
-import GHC.Float             (double2Float, int2Double)
+import Control.Lens          ((^.))
+import Data.IORef            (newIORef)
+import GHC.Float             (double2Float)
 
 import qualified Graphics.UI.GLFW          as GLFW
 import qualified Graphics.Rendering.OpenGL as GL
 import           Graphics.Rendering.OpenGL as GL (($=))
 
 import qualified Linear as L
-import           Linear      ( V3(..)
-                             , _x
-                             , _y
-                             , _z
-                             )
+import           Linear      ( V3(..), _y )
 
 -- | Main function runs game
 main :: IO ()
 main = do
-  GLFW.init
+  _ <- GLFW.init
   GLFW.defaultWindowHints
 
   -- OpenGL core >=3.3
@@ -61,7 +49,7 @@ main = do
   GLFW.setCursorInputMode window GLFW.CursorInputMode'Hidden
   GLFW.setCursorPosCallback window $ Just (cursorPosHandler Nothing)
 
-  (objects, program) <- initResources window testVertices
+  (objects, program) <- initResources testVertices
 
   -- init model
   let
@@ -123,8 +111,6 @@ update dt model =
 updateAcceleration :: Float -> Model -> Model
 updateAcceleration dt model =
   let
-    yaw = (L.rotate (L.axisAngle model.wprop.up model.camera.camYaw) model.camera.camReference)
-    front = L.normalize $ (V3 1 0 1) * (L.rotate (L.axisAngle (L.cross model.wprop.up yaw) model.camera.camPitch) yaw)
     zp = if elem GLFW.Key'S model.keys then 1 else 0
     zn = if elem GLFW.Key'W model.keys then 1 else 0
     xp = if elem GLFW.Key'D model.keys then 1 else 0
@@ -193,12 +179,6 @@ updateCameraAngle dt model =
       }
     }
 
--- | updates given a keypress. escape case is probably caught by GLFW in the
--- handler function itself
-updateKeyPressed :: GLFW.Key -> Model -> Model
-updateKeyPressed key model =
-  model { keys = key:model.keys }
-
 -- | views the model
 view :: GLFW.Window -> Model -> IO ()
 view window model = do
@@ -233,8 +213,8 @@ view window model = do
   projectionLocation <- GL.get $ GL.uniformLocation model.program "u_projection"
   GL.uniform projectionLocation $= projectionGLMatrix
 
-  -- draw objects
-  drawObjects model.objects
+  -- draw objects; returns IO []
+  _ <- drawObjects model.objects
 
   -- swap to current buffer
   GLFW.swapBuffers window