From f0507125e06e3e8939f259e9468d797e9a8e668e Mon Sep 17 00:00:00 2001
From: "Juan J. Martinez" <jjm@usebox.net>
Date: Wed, 1 Mar 2023 20:02:14 +0000
Subject: Dropped ReaderT as is not really needed

---
 game.cabal  |  1 -
 src/Game.hs | 56 ++++++++++++++++++++++++++------------------------------
 2 files changed, 26 insertions(+), 31 deletions(-)

diff --git a/game.cabal b/game.cabal
index d7e890f..9852415 100644
--- a/game.cabal
+++ b/game.cabal
@@ -34,7 +34,6 @@ library
         Game.Utils
     build-depends:
         base
-        , mtl
         , text >= 1.1.0.0 && < 2.1
         , vector>=0.10.9.0 && <0.14
         , containers
diff --git a/src/Game.hs b/src/Game.hs
index 537b889..d8ce8b6 100644
--- a/src/Game.hs
+++ b/src/Game.hs
@@ -1,6 +1,6 @@
 module Game (main) where
 
-import Control.Monad.Reader
+import Control.Monad
 import Data.IORef
 import Data.Maybe (fromMaybe)
 import Data.Text (pack)
@@ -92,8 +92,7 @@ main = do
         }
   hud <- H.mkHud sprites state
   entities <- newIORef =<< E.mkEntities sprites map' controls state
-  runReaderT
-    gameLoop
+  gameLoop
     Env
       { window = window,
         renderer = renderer,
@@ -111,9 +110,8 @@ main = do
   SDL.destroyWindow window
   SDL.quit
 
-toggleFullscreen :: ReaderT Env IO ()
-toggleFullscreen = do
-  env <- ask
+toggleFullscreen :: Env -> IO ()
+toggleFullscreen env = do
   let fullscreen = env.fullscreen
       renderRect = env.renderRect
       renderer = env.renderer
@@ -136,9 +134,8 @@ toggleFullscreen = do
             rh = gameHeight * scale
    in renderRect $= newRenderRect
 
-gameLoop :: ReaderT Env IO ()
-gameLoop = do
-  env <- ask
+gameLoop :: Env -> IO ()
+gameLoop env = do
   let renderer = env.renderer
       canvas = env.canvas
       renderRect = env.renderRect
@@ -148,7 +145,7 @@ gameLoop = do
   events <- map SDL.eventPayload <$> SDL.pollEvents
 
   -- F11 for fullscreen / windowed
-  when (fromMaybe False $ U.isPressed SDL.KeycodeF11 events) toggleFullscreen
+  when (fromMaybe False $ U.isPressed SDL.KeycodeF11 events) $ toggleFullscreen env
 
   -- ESC or close the window to quit
   let quit = fromMaybe False (U.isPressed SDL.KeycodeEscape events) || SDL.QuitEvent `elem` events
@@ -159,11 +156,10 @@ gameLoop = do
     SDL.rendererRenderTarget renderer $= Just canvas
     SDL.clear renderer
 
-    void $ liftIO $ do
-      state <- readIORef stateRef
-      when (state.gameOverDelay > 1) $ stateRef $= state {GS.gameOverDelay = state.gameOverDelay - 1}
-      when (state.gameOverDelay /= 1) $ playLoop env
-      when (state.gameOverDelay == 1) $ gameOverLoop env
+    state <- readIORef stateRef
+    when (state.gameOverDelay > 1) $ stateRef $= state {GS.gameOverDelay = state.gameOverDelay - 1}
+    when (state.gameOverDelay /= 1) playLoop
+    when (state.gameOverDelay == 1) gameOverLoop
 
     SDL.rendererRenderTarget renderer $= Nothing
     SDL.clear renderer
@@ -172,10 +168,10 @@ gameLoop = do
 
     SDL.present renderer
 
-    gameLoop
+    gameLoop env
   where
-    playLoop :: Env -> IO ()
-    playLoop env = do
+    playLoop :: IO ()
+    playLoop = do
       let renderer = env.renderer
           map' = env.map
           entities = env.entities
@@ -188,18 +184,18 @@ gameLoop = do
       let (px, py) = E.playerPosition updated
 
       -- render map and entities
-      void $ do
-        -- set the SDL viewport
-        viewport <- M.viewport renderer map' px py (fromIntegral gameWidth) (fromIntegral gameHeight - H.height) (Just (0, H.height))
-        M.render renderer map' viewport
-        E.renderVisible renderer updated viewport
-
-        -- reset viewport to draw the HUD
-        SDL.rendererViewport renderer $= Nothing
-        H.render renderer hud
-
-    gameOverLoop :: Env -> IO ()
-    gameOverLoop env = do
+
+      -- set the SDL viewport
+      viewport <- M.viewport renderer map' px py (fromIntegral gameWidth) (fromIntegral gameHeight - H.height) (Just (0, H.height))
+      M.render renderer map' viewport
+      E.renderVisible renderer updated viewport
+
+      -- reset viewport to draw the HUD
+      SDL.rendererViewport renderer $= Nothing
+      H.render renderer hud
+
+    gameOverLoop :: IO ()
+    gameOverLoop = do
       let renderer = env.renderer
           sprites = env.sprites
           hud = env.hud
-- 
cgit v1.2.3