Prevent Deactivation

[DerVVulfman]

Prevent Deactivation
by KK20
Version: 1.1
* and Minor F12 fix added by DerVVulfman

Introduction
When the game window is no longer the active window, it normally freezes the game from updating. This script will allow games to still run in the background.

This feature makes it so your game stays active and continues to run, even if you bring up another window or program.



Features

• Keeps the game running, even if you're running another program
  
• Has options to turn on/off the prevention feature
  
• Versions for Ruby 1.8 and newer Ruby 2.0+
  

Script

The version for Ruby 1.8+

Code:

=begin
================================================================================
Prevent Deactivation
Author: KK20
Version: 1.1
--------------------------------------------------------------------------------
[ Description ]
When the game window is no longer the active window, it normally freezes the
game from updating. This script will allow games to still run in the background.

[ Instructions ]
You can enable / disable this feature in-game using the script call:

              $game_system.keep_game_active = true / false
             
This is useful for custom menu options so that the player can choose their
preference of whether the game runs in the background or not.

Script should be placed as low as possible in your script list, but still
above Main.

It is highly advised to not modify this script unless you know what you are
doing.
================================================================================
=end


module MessageIntercept
  Start = Win32API.new('MessageIntercept', 'Init_Deactivate', 'pp', 'i')
  Toggle = Win32API.new('MessageIntercept', 'KeepGameActive', 'i', '')
  Flag_Deactivate = [1].pack('C*')
end

module Input
  class << self
    if @intercept_f12_stack.nil?
      alias update_if_game_in_focus update
      @intercept_f12_stack = true
    end
  end
  # Only accept player input if the game window is in focus
  def self.update
    update_if_game_in_focus if MessageIntercept::Flag_Deactivate[0] == 1
  end
end

class Game_System
  attr_reader :keep_game_active
 
  alias init_for_no_deactivate initialize
  def initialize
    @keep_game_active = true
    init_for_no_deactivate
  end
 
  # When loading a save, need to make DLL call to enable/disable keeping the
  # game active
  alias original_update_no_deactivate update
  def self.modify_update(revert = false)
    if revert
      alias update original_update_no_deactivate
    else
      alias update no_deactivate_update
    end
  end
  def no_deactivate_update
    MessageIntercept::Toggle.call(@keep_game_active ? 1 : 0)
    original_update_no_deactivate
    Game_System.modify_update(true)
  end
 
  def keep_game_active=(bool)
    @keep_game_active = bool
    MessageIntercept::Toggle.call(@keep_game_active ? 1 : 0)
  end
end

class Game_Temp
  alias change_gamesystem_update_init initialize
  def initialize
    change_gamesystem_update_init
    Game_System.modify_update
  end
end

if MessageIntercept::Start.call('.\\Game.ini', MessageIntercept::Flag_Deactivate) == -1
  raise 'ERROR: Prevent Deactivation failed to set new window procedure!'
end

Required Attachment

  MessageIntercept.zip (Size: 27.17 KB / Downloads: 28)



Instructions
Mainly, place the .DLL attached in your project's root directory and paste the script just above main after all other custom scripts.  Other instructions are in the script.



FAQ
This was searched for by DerVVulfman, the request at RPGMakerWeb.Com posted and found right (>HERE<)



Compatibility
Designed for the RPGMaker engines, with two versions based on which version of Ruby/RGSS your engine is using.



Credits and Thanks
This script was designed by KK20, and with thanks to Jaiden for the toggle on/off feature request.


Terms and Conditions
Due credit for both KK20 and Jaiden is required.  Free for use in commercial projects.

[kyonides]

It's weird to find no reason to double post the code here. Didn't you make any mistake, wulfo? O_o? Or has the original scripter lied to people hoping nobody would notice it?

[DerVVulfman]

I have done searches within the forum for key words of "KK20", "MessageIntercept", and "Deactivation". At no point do we have any thread or post that comes up. And as towards a search for the keyword of "Jaiden" who supplied a suggestion AND whom I've known for ten years since the old RMXP.Org days, no script posts were provided.

I have also performed a google searches for "MessageIntercept RPG" and "Deactivation RPG", so the returned list of viable links would only involve within RPGMaker forums for either the name 'Deactivation' or the MessageIntercept DLL file. No results were found.

If you are stating that this script already exists within this forum, please provide the link.

[DerVVulfman]

*ACK! I keep forgetting you go by that name in here!!!

And nope, that is not a double-post. There is a subtle difference between the two. Ruby 1.8 does not include the getbyte statement for the String class, so the 1.8 version contains the line:

Code:

update_if_game_in_focus if MessageIntercept::Flag_Deactivate[0] == 1

However, since the later versions of Ruby does have the getbyte statement, the newer version of the script instead contains the line:

Code:

update_if_game_in_focus if MessageIntercept::Flag_Deactivate.getbyte(0) == 1

This minor change was pointed out by KK20 as below:

Oh right, forgot about that. You just use String#[] to get the byte. So it should be

Code:

update_if_game_in_focus if MessageIntercept::Flag_Deactivate[0] == 1

[kyonides]

The question would be if there's an actual need for two versions of the same script. I mean, isn't it enough to use either #[] or get_byte in both versions of Ruby. Who can confirm it? O_O

[Rangnarok]

Thanks for this script. I am noob to RPG Maker, let alone Ruby. But this script is exactly what I needed.

I had to change a bit so the game still accepts input while the window is inactive. Luckily, the instructions in the file was clear enough for me to understand and commented that part out.

I tried with SpecialK to do what I need, but it didn't hook at all. Thank you again for this.

EDIT 2: It works :) I had to start a new game. I guess the old save file still uses the old script system somehow.


For those who is curious, I edited this part out so the game would still accept player input while the window is inactive (for controller)

Code:

 # Only accept player input if the game window is in focus
 #  def self.update
 #  update_if_game_in_focus if MessageIntercept::Flag_Deactivate.getbyte(0) == 1
 # end