Tidied up semicolon use, refactored random dungeon generation code, fixed visual bug in Day Care debug screen

Data/Scripts/002_Save data/002_SaveData_Value.rb

@@ -181,7 +181,7 @@ module SaveData
   #     new_game_value { Bar.new }
   #   end
   # @param id [Symbol] value id
-  # @yieldself [Value]
+  # @yield the block of code to be saved as a Value
   def self.register(id, &block)
     validate id => Symbol
     unless block_given?

Data/Scripts/002_Save data/003_SaveData_Conversion.rb

@@ -152,7 +152,7 @@ module SaveData
   #       save_data[:new_value] = Foo.new
   #     end
   #   end
-  # @yield self [Conversion]
+  # @yield the block of code to be saved as a Conversion
   def self.register_conversion(id, &block)
     validate id => Symbol
     unless block_given?

Data/Scripts/002_Save data/004_Game_SaveValues.rb

@@ -5,8 +5,8 @@ SaveData.register(:player) do
   save_value { $Trainer }
   load_value { |value| $Trainer = value }
   new_game_value {
-    trainer_type = nil   # Get the first defined trainer type as a placeholder
-    GameData::TrainerType.each { |t| trainer_type = t.id; break }
+    # Get the first defined trainer type as a placeholder
+    trainer_type = GameData::TrainerType.keys.first
     Player.new("Unnamed", trainer_type)
   }
   from_old_format { |old_format| old_format[0] }