done adding LevelType.level_type as a field of GameType.game_type, and having main loop go through GameUpdate.game_type -> LevelUpdate.update

fcore/game-type.sml

@@ -1,16 +1,20 @@
 signature GAME_TYPE =
 sig
-  datatype mode =
-    LEVEL of LevelType.level_type
+  datatype mode = LEVEL of LevelType.level_type
+
+  type game_type = {userKeys: CoreKey.user_key, mode: mode}
+
+  val init: CoreKey.user_key -> game_type
 end
 
 structure GameType :> GAME_TYPE =
 struct
-  datatype mode =
-    LEVEL of LevelType.level_type
+  datatype mode = LEVEL of LevelType.level_type
 
-  type game_type = {
-    userKeys: CoreKey.user_key,
-    mode: mode
-  }
+  type game_type = {userKeys: CoreKey.user_key, mode: mode}
+
+  fun init userKeys =
+    let val mode = LEVEL LevelType.initial
+    in {mode = mode, userKeys = userKeys}
+    end
 end

fcore/game-update.sml

@@ -0,0 +1,18 @@
+structure GameUpdate =
+struct
+  open GameType
+
+  fun update (game: GameType.game_type, input) =
+    let
+      val {mode, userKeys} = game
+
+      val mode =
+        case mode of
+          LEVEL level =>
+            let val level = LevelUpdate.update (level, input)
+            in LEVEL level
+            end
+    in
+      {mode = mode, userKeys = userKeys}
+    end
+end

fcore/level/level-type.sml

@@ -9,10 +9,9 @@ sig
     , enemies: EnemyMap.t
     , graph: PlatSet.elem vector vector
     , fallingEnemies: FallingEnemyMap.t
-    , userKeys: CoreKey.user_key
     }
 
-  val initial: CoreKey.user_key -> level_type
+  val initial: level_type
 end
 
 structure LevelType :> LEVEL_TYPE =
@@ -26,7 +25,6 @@ struct
     , enemies: EnemyMap.t
     , graph: PlatSet.elem vector vector
     , fallingEnemies: FallingEnemyMap.t
-    , userKeys: CoreKey.user_key
     }
 
   fun enemyMapFromList (hd :: tl, map) =
@@ -35,7 +33,7 @@ struct
         end
     | enemyMapFromList ([], map) = map
 
-  fun initial userKeys =
+  val initial =
     let
       val player =
         { yAxis = EntityType.JUMPING 0
@@ -142,7 +140,6 @@ struct
       , enemies = enemies
       , graph = graph
       , fallingEnemies = FallingEnemyMap.empty
-      , userKeys = userKeys
       }
     end
 end

fcore/level/level-update.sml

@@ -11,7 +11,6 @@ struct
         , enemies
         , graph
         , fallingEnemies
-        , userKeys
         } = game
 
       val player = Player.runPhysicsAndInput (game, input)
@@ -40,7 +39,6 @@ struct
       , enemies = enemies
       , graph = graph
       , fallingEnemies = fallingEnemies
-      , userKeys = userKeys
       }
     end
 end

fcore/level/player/player.sml

@@ -501,10 +501,7 @@ struct
         case attacked of
           NOT_ATTACKED => (1.0, 1.0, 1.0)
         | ATTACKED amt =>
-            if amt mod 5 = 0 then 
-              (1.0, 1.0, 1.0)
-            else 
-              (1.0, 0.75, 0.75)
+            if amt mod 5 = 0 then (1.0, 1.0, 1.0) else (1.0, 0.75, 0.75)
     in
       PlayerSprite.lerp (x, y, realWidth, realHeight, width, height, r, g, b)
     end

oms.mlb

@@ -52,6 +52,7 @@ fcore/level/player/player-attack.sml
 fcore/level/projectile.sml
 fcore/level/level-update.sml
 
+fcore/game-type.sml
 fcore/game-update.sml
 
 (* shell *)

shell/gl-draw.sml

@@ -213,7 +213,7 @@ struct
   fun drawField ({fieldVertexBuffer, fieldProgram, fieldLength, ...}) =
     drawXyrgba (fieldVertexBuffer, fieldProgram, fieldLength)
 
-  fun draw (shellState: t) =
+  fun drawLevel (shellState: t) =
     let
       val _ = drawWall shellState
       val _ = drawPlayer shellState
@@ -222,6 +222,40 @@ struct
       ()
     end
 
+  fun drawMode (shellState: t, game: GameType.game_type) =
+    let
+      open GameType
+    in
+      case #mode game of
+        LEVEL level =>
+          let
+            val width = InputState.getWidth ()
+            val height = InputState.getHeight ()
+
+            val playerVec = Player.getDrawVec (#player level, width, height)
+            val enemyVec = Enemy.getDrawVec (#enemies level, width, height)
+            val playerVec = Vector.concat [playerVec, enemyVec]
+
+            val wallVec = Wall.getDrawVec (#walls level, width, height)
+            val platVec = Platform.getDrawVec (#platforms level, width, height)
+            val chainVec = Player.getFieldVec (#player level, width, height)
+            val fallingVec = FallingEnemies.getDrawVec (level, width, height)
+            val wallVec = Vector.concat [wallVec, platVec, chainVec, fallingVec]
+
+            val pelletVec = Player.getPelletVec (#player level, width, height)
+            val projectileVec =
+              Projectile.getProjectileVec (#player level, width, height)
+            val fieldVec = Vector.concat [pelletVec, projectileVec]
+
+            val shellState = uploadWall (shellState, wallVec)
+            val shellState = uploadPlayer (shellState, playerVec)
+            val shellState = uploadField (shellState, fieldVec)
+            val () = drawLevel shellState
+          in
+            shellState
+          end
+    end
+
   fun helpLoop (shellState as {window, ...}: t, game) =
     case Glfw.windowShouldClose window of
       false =>
@@ -230,32 +264,9 @@ struct
           val _ = Gles3.clear ()
 
           val input = InputState.getSnapshot ()
-          val width = InputState.getWidth ()
-          val height = InputState.getHeight ()
+          val game = GameUpdate.update (game, input)
 
-          val game = LevelUpdate.update (game, input)
-
-          val playerVec = Player.getDrawVec (#player game, width, height)
-          val enemyVec = Enemy.getDrawVec (#enemies game, width, height)
-          val playerVec = Vector.concat [playerVec, enemyVec]
-
-          val wallVec = Wall.getDrawVec (#walls game, width, height)
-          val platVec = Platform.getDrawVec (#platforms game, width, height)
-          val chainVec = Player.getFieldVec (#player game, width, height)
-          val fallingVec = FallingEnemies.getDrawVec (game, width, height)
-          val wallVec = Vector.concat [wallVec, platVec, chainVec, fallingVec]
-
-          (* temp *)
-          val pelletVec = Player.getPelletVec (#player game, width, height)
-          val projectileVec =
-            Projectile.getProjectileVec (#player game, width, height)
-          val fieldVec = Vector.concat [pelletVec, projectileVec]
-
-          val shellState = uploadWall (shellState, wallVec)
-          val shellState = uploadPlayer (shellState, playerVec)
-          val shellState = uploadField (shellState, fieldVec)
-
-          val _ = draw shellState
+          val shellState = drawMode (shellState, game)
 
           val _ = Glfw.swapBuffers window
           val _ = Glfw.pollEvents ()
@@ -281,6 +292,6 @@ struct
 
       val () = InputState.setControls controls
     in
-      helpLoop (shellState, LevelType.initial controls)
+      helpLoop (shellState, GameType.init controls)
     end
 end