when play button is focused on title screen and either attack or jump button is pressed, start level

fcore/game-update.sml

@@ -5,18 +5,9 @@ struct
   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
-        | TITLE title =>
-            let val title = TitleUpdate.update (title, input)
-            in TITLE title
-            end
     in
-      {mode = mode, userKeys = userKeys}
+      case mode of
+        LEVEL level => LevelUpdate.update (level, input, userKeys)
+      | TITLE title => TitleUpdate.update (title, input, userKeys)
     end
 end