F12 Fix: DerVVulfman-Style

[DerVVulfman]

F12 Fix: DerVVulfman-Style
Version: 1.2

Introduction
This script removes the functionality of the F12 button, and thus prevents possible stack errors from occurring. But while doing so, it also performs a routine that lets on-screen graphics refresh at a normal speed if the F12 button is depressed for any extended length of time. This is a change from other F12 scripts of its type whereby the graphics are sped up. Only the game play remains frozen.



Script

The F12 Fix

Code:

#==============================================================================
# ** F12 Fix:  DerVVulfman-Style
#------------------------------------------------------------------------------
#    by DerVVulfman
#    version 1.2
#    04-23-2013
#    RGSS / RPGMaker XP
#==============================================================================
#
#  INTRODUCTION:
#
#  There are a few scripts out for RPGMaker XP that fixes the dreaded F12 bug,
#  whereby pressing the F12 button (whether intentional or by accident) allows
#  the player to reset their game...  and incidentally  force some  scripts to
#  try and reload causing 'stack' errors.   A number of scripts  have been out
#  that fully clear resources while others attempt to remove the functionality
#  of the F12 button altogether.  This is one of the latter.
#
#  This script removes the functionality of the F12 button,  and thus prevents
#  possible stack errors from occurring.  But while doing so, it also performs
#  a routine that lets on-screen graphics refresh at a normal speed if the F12
#  button is depressed for any extended length of time.  This is a change from
#  other F12 scripts of its type  whereby the graphics  are sped up.  Only the
#  player's game play actions remain frozen.
#
#  But,  there is something to note.  If you press the F12 button while in the
#  midst of a screen transition, it will reset the transition to the start.
#
#  Graphics created with an outside .dll (3D / Mode7) may not refresh properly
#  with this system.
#
#  USE:  Seriously?  Just paste it into your game.
#
#===============================================================================


#===============================================================================
# ** Reset
#------------------------------------------------------------------------------
#  The class that detects the F12 key.
#===============================================================================

class Reset < Exception
end



#===============================================================================
# ** Graphics
#------------------------------------------------------------------------------
#  The module that carries out graphics processing.
#===============================================================================

class << Graphics
  #-----------------------------------------------------------------------------
  # * Alias Listings
  #-----------------------------------------------------------------------------
  alias f12_graphics_update update
  alias f12_graphics_transition transition
  #-----------------------------------------------------------------------------
  # * Frame Update
  #-----------------------------------------------------------------------------    
  def update
    # Set up frame counter flip flag
    @flip_count = false if @flip_count.nil?
    # Execute update with F12 check
    begin
      # Perform the original call
      f12_graphics_update
    # F12 [Reset] check
    rescue Reset
      # Sleep for a fraction of a second (based on frame_rate)
      sleep(1.0/self.frame_rate)
      # Toggle frame counter flag
      @flip_count = !@flip_count
      # Add 1 to count
      self.frame_count += 1
      # Add additional count if flag is true
      self.frame_count += 1 if @flip_count == true
      # Reset the screen refresh timing (prevents clipping)
      frame_reset
      # Do nothing
    end
  end
  #-----------------------------------------------------------------------------
  # * Transition
  #-----------------------------------------------------------------------------    
  def transition(*args)
    # Transition finished flag
    trans_end = false
    # If transition being performed (not finished)
    while trans_end != true
      # Execute update with F12 check
      begin
        # Perform the original call
        f12_graphics_transition(*args)
        # Transition finished performing
        trans_end = true
      # F12 [Reset] check
      rescue Reset
        # Reset the screen refresh timing (prevents clipping)
        frame_reset
        # Do nothing
      end
    end
  end
end

FAQ
Dang small, isn't it?



Compatibility
RPGMaker XP only. It won't work with VX.



Terms and Conditions
Free for use, even in commercial scripts. Due credit is all that's required.

[DerVVulfman]

Slight BUMP to version 1.1. Oops. I didn't set the RESET exception class. It's a minor addition, but a simple fix.

[DerVVulfman]

A new
BUMP
to version 1.2

Sure, the system prevented the F12 problem if you hit F12 when Graphics.update was running, but who knew that Graphics.transition needed its own? I ran into that weird STACK glitch by accident (even though I was testing it). So, another method to stop F12 from happening had to be made. It took a while to figure it out.

STILL... I was already working on a little update as the previous version didn't update the game's clock (the Game Time) if you were pressing F12. That meant the Graphics.frame_count wasn't increasing. So I took some time to come up with a method to increase the frame_count. While it may not be wholly accurate, I think it's fairly close. I mean, who is REALLY going to hold down the F12 button for kicks? But still... it also fixed my issue with autotiles and other graphics of its ilk not refreshing. While sprites moved fine, autotiles didn't.... but they do now!