View difference between Paste ID: E7LgAj7v and earuC09i

 class Scene_Main < Scene_Base
   def start
     super
     @menu_bar = Window_MenuBar.new
     @menu_bar.viewport = @viewport
     add_drop_menus
   end
 
   def add_drop_menus
 
     # file
-    file = Window_DropMenu.new(@menu_bar, :file)
+    file = Window_DropMenu.new(@menu_bar, :file) do |w|
       w.add_item("Open...", :open, proc { !MapCon.open? } )
-    file.add_item("Open...", :open, proc { !MapCon.open? } )
+      w.add_item("Close", :close, MapCon.method(:open?))
-    file.add_item("Close", :close, MapCon.method(:open?))
+      w.add_separator
-    file.add_separator
+      w.add_item("Exit", :exit)
-    file.add_item("Exit", :exit)
+
       w.set_handler(:open, method(:on_open))
-    file.set_handler(:open, method(:on_open))
+      w.set_handler(:exit, method(:exit))
-    file.set_handler(:exit, method(:exit))
+    end # add finalize to the end of the initialize method something like: (yield self; finalize) if block_given?
-    file.finalize
+
     @menu_bar.add_command("File", :file, file)
     @menu_bar.set_handler(:file,  method(:on_click_menu))
 
     #view
     view = Window_DropMenu.new(@menu_bar, :view)
 
     view.add_item("Zoom", :zoom, proc { MapCon.open? && MapCon.map_open? } )
 
     view.set_handler(:zoom, method(:on_zoom))
     view.finalize
 
     @menu_bar.add_command("View", :view, view)
     @menu_bar.set_handler(:view, method(:on_click_menu))
 
     # project
     proj = Window_DropMenu.new(@menu_bar, :project)
 
     proj.add_item("Open Map",  :open,  proc { !MapCon.map_open? } )
     proj.add_item("Close Map", :close, MapCon.method(:map_open?)  )
     proj.add_separator
     proj.add_item("Add Map", :add)
 
     proj.set_handler(:open, method(:on_open_map))
     proj.finalize
 
     @menu_bar.add_command("Project", :project, proj)
     @menu_bar.set_handler(:project, method(:on_click_menu))
 
     # about
     abt  = Window_DropMenu.new(@menu_bar, :about)
 
     abt.add_item("About...", :about)
     abt.add_item("Help", :help)
 
     abt.set_handler(:help, method(:on_help))
     abt.finalize
 
     @menu_bar.add_command("About", :about, abt)
     @menu_bar.set_handler(:about,  method(:on_click_menu))
 
     @menu_bar.finalize
   end
 
   def on_click_menu
     @menu_bar.drop_window(@menu_bar.current_symbol)
   end
 
   def on_open
     file = Fyx.open_file("Game.rvproj2", "rvproj2", "Open your game's project.")
     if File.exist?(file)
       MapCon.open(File.dirname(file))
     end
   end
 
   def on_close
 #~     ask_save if MapCon.working?
 #~     MapCon.close
 #~     @spriteset.clear
   end
 
   def on_open_map
     MapCon.open_map
   end
 
   def on_help
     p "Helping!"
   end
 
   def on_zoom
 
   end
 end