Add difficulty setting menu item

Author: logicalgroove

.gitignore

@@ -6,3 +6,5 @@ run
 publish
 
 logs/
+
+.DS_Store

app/constants.rb

@@ -32,3 +32,5 @@
 FP_DUAL = :dual
 FP_TRI = :tri
 FP_QUAD = :quad
+
+DIFFICULTY = [:easy, :normal, :hard]

app/game_setting.rb

@@ -33,12 +33,15 @@ def load_settings(args)
             v = true
           elsif v == "false"
             v = false
+          else
+            v = v.to_sym
           end
           args.state.setting[k.to_sym] = v
         end
       else
         args.state.setting.sfx = true
         args.state.setting.fullscreen = false
+        args.state.setting.difficulty = :normal
       end
 
       if args.state.setting.fullscreen

app/menu.rb

@@ -99,7 +99,7 @@ def text_for_setting_val(val)
       when false
         text(:off)
       else
-        val
+        text(val) || val
       end
     end
   end

app/scenes/settings.rb

@@ -5,6 +5,18 @@ def tick_settings(args)
       a_s = args.state
 
       options = [
+        {
+          key: :difficulty,
+          kind: :toggle,
+          setting_val: a_s.setting.difficulty,
+          on_select: -> (args) do
+            current_index = DIFFICULTY.index(a_s.setting.difficulty)
+            current_index = (current_index + 1) % DIFFICULTY.length
+            GameSetting.save_after(args) do |args|
+              a_s.setting.difficulty = DIFFICULTY[current_index]
+            end
+          end
+        },
         {
           key: :sfx,
           kind: :toggle,

app/text.rb

@@ -40,6 +40,10 @@
   sfx: "Sound Effects",
   start: "Start",
   win: "You Win!",
+  difficulty: "Difficulty",
+  easy: "Grandma's House",
+  normal: "The Real World",
+  hard: "The Hunger Games",
 }
 
 # Gets the text for the passed in `key`. Raises if it does not exist. We don't