F12 Fix

############################################################
#F12 Pause Menu
#By Zeriab and tweaked by Pia Carrot
#Now will show pause menu over other menus
#
#Instructions
#Add an image called "f12.png" to your Graphics/Pictures folder
#F12 will no longer reset your game and will display this image
#until you press F12 again.
#
#
#Credits must be given to Zeriab.
#Enjoy this tweaked script for use of Pokemon Essentials
#############################################################

class Reset < Exception
 
end

module Graphics
  class << self

     unless self.method_defined?(:zeriab_f12_pause_update)
        alias_method(:zeriab_f12_pause_update, :update)
        alias_method(:zeriab_f12_pause_transition, :transition)
     end

     def update(*args)
        # Try to update normally
        begin
           zeriab_f12_pause_update(*args)
           return
        rescue Reset
           # Do nothing
        end
        # F12 has been pressed
        done = false
        # Store frame count
        frame_count = Graphics.frame_count
        # Show pause image
        @sprite = Sprite.new
        @sprite.z = 99999
        begin
           @sprite.bitmap = RPG::Cache.picture('f12')
        rescue
           @sprite.bitmap = Bitmap.new(32,32)
        end
        # Keep trying to do the update
        while !done
           begin
              zeriab_f12_pause_update(*args)
              done = true
           rescue Reset
              # Do Nothing
           end
        end
        # F12 has been released, update until it is pressed again
        while done
           begin
              zeriab_f12_pause_update(*args)
           rescue Reset
              done = false
           end
        end
        # F12 has been pressed, keep trying to update
        while !done
           begin
              zeriab_f12_pause_update(*args)
              done = true
           rescue Reset
              # Do nothing
           end
        end
        # F12 has been released, dispose pause image
        @sprite.dispose
        # Set proper frame count
        Graphics.frame_count = frame_count
     end

     def transition(*args)
        done = false
        # Keep trying to do the transition
        while !done
           begin
              zeriab_f12_pause_transition(*args)
              done = true
           rescue Reset
              # Set transition length to 0 frames.
              args[0] = 0
           end
        end
     end
  end
end