aliasing problem

[germen]

Hi im having a problem with using a aliasing that goes into Scene_Map and updateing, heres the script:

class Window_Skills < Window_Base
  def initialize
    super(0,0,200,200)
    self.contents = Bitmap.new(width - 32, height - 32)
    refresh
  end
  def refresh
    self.contents.clear
    self.contents.font.color = normal_color
    self.contents.draw_text(0, 0, 150, 32, "Attack:")
    self.contents.draw_text(70, 0, 150, 32, "1")
    self.contents.draw_text(0, 20, 150, 32, "Strength:")
    self.contents.draw_text(70, 20, 150, 32, "1")
    self.contents.draw_text(0, 40, 150, 32, "Defense:")
    self.contents.draw_text(70, 40, 150, 32, "1")
end
def update
  refresh
end
end
class Scene_Map
alias old_main main
alias old_update update
  def main
    old_main
    @window = Window_Skills.new
  end
  def dispose
    @window.dispose
  end
  def update
    old_update
    @window.update
  end
end

It's probably a really simple error but i can't see it! Just recently bought Ruby Pocket reference, but i cant see what i wcould be doing wrong.

The Error says:
Script 'My_Window'line 33: NoMethodError occurred.
undefined method 'update' for nil:NilClass

Appreciate the help!

 

[Anonymous]

EDIT: crashes

 

[khmp]

NM I see the update method definition.

I think I got it. When you alias main there's a tiny problem. There's a loop in it. The code for when the window is created is never reached until that loop is broken. So just place @window = Window_Skills.new above old_main.

So now it should be

class Scene_Map
alias old_main main
alias old_update update
  def main
    @window = Window_Skills.new
    old_main
  end
  def dispose
    @window.dispose
  end
  def update
    old_update
    @window.update
  end
end

 

[arev]

Also, the disposing of window can be done like this:

@window = Window_Skills.new
old_main
@window.dispose

: )

 

[germen]

Went over everything like 8 times yet there it was, thanks guys!