[Scripting Question] Write Variables To Text File

[IronLord]

Hello.

I was wondering if there is any way of exporting/writing variables to a .txt file upon saving the game or changing a variable. As far as i know there is no other way to read a .rxdata file outside of RPG Maker, so reading from the rxdata directly probably wouldn't work.

Any possible help is greatly appreciated.

 

[StCooler]

Hello.

I was wondering if there is any way of exporting/writing variables to a .txt file upon saving the game or changing a variable. As far as i know there is no other way to read a .rxdata file outside of RPG Maker, so reading from the rxdata directly probably wouldn't work.

Any possible help is greatly appreciated.

What variables are you talking about? You mean $game_variables / the variables you set in the Events with the option "Control Variables" in the Event commands?

Paste this script somewhere:

Spoiler:

# Allow loops on game variables.
class Game_Variables
  def each_with_index
    @data.each_with_index { |v, i| yield v, i }
  end 
end

# Allow loops on game switches.
class Game_Switches
  def each_with_index
    @data.each_with_index { |v, i| yield v, i }
  end 
end 

# Prints game variables and game switches. 
def pbSaveVariablesToTxt
  File.open("variables.txt","w") { |f| 
    f.write(_INTL("#============================================\n"))
    f.write(_INTL("# Date: {1}\n", Time.now))
    f.write(_INTL("#============================================\n"))
    f.write(_INTL("# Variables:\n"))
    f.write(_INTL("#============================================\n"))
    
    $game_variables.each_with_index { |val, i|
      f.write(_INTL("{1}= {2}", i.to_s.ljust(5), val))
      f.write("\n")
    }
    
    f.write(_INTL("#============================================\n"))
    f.write(_INTL("# Switches=\n"))
    f.write(_INTL("#============================================\n"))
    
    $game_switches.each_with_index { |val, i|
      f.write(_INTL("{1}= {2}", i.to_s.ljust(5), val))
      f.write("\n")
    }
  }
  pbMessage("Done writing variables.txt.")
end

Call the function pbSaveVariablesToTxt in an Event or something if you want to print the variables.

If you want to alter the variables, I suggest you do it with RPG Maker, rather than a script.

 

[IronLord]

This is exactly what I was looking for, thank you!

 

[IronLord]

I have a little problem. I've put the script at the end of PSystem_Utilities, but when I call the script in an event it doesn't write any variables or switches.
https://pasteboard.co/JQK5jrZ.png
https://pasteboard.co/JQK5uXB.png

 

[StCooler]

I have a little problem. I've put the script at the end of PSystem_Utilities, but when I call the script in an event it doesn't write any variables or switches.
https://pasteboard.co/JQK5jrZ.png
https://pasteboard.co/JQK5uXB.png

Replace my code with this:

Spoiler:

# -----------------------------------------------------------------------------
# Print all variables and switches in a file. 
# -----------------------------------------------------------------------------
# Allow loops on game variables.
class Game_Variables
  def each_with_index
    @data.each_with_index { |v, i| yield v, i }
  end 
  def length 
    return @data.length 
  end 
end

# Allow loops on game switches.
class Game_Switches
  def each_with_index
    @data.each_with_index { |v, i| yield v, i }
  end 
  def length 
    return @data.length 
  end 
end 

# Prints all game variables and game switches. 
def pbSaveVariablesToTxt
  File.open("variables.txt","w") { |f| 
    f.write(_INTL("#============================================\n"))
    f.write(_INTL("# Date: {1}\n", Time.now))
    f.write(_INTL("#============================================\n"))
    f.write(_INTL("# Variables (length={1})\n", $game_variables.length))
    f.write(_INTL("#============================================\n"))
    
    $game_variables.each_with_index { |val, i|
      f.write(_INTL("{1}= {2}", i.to_s.ljust(5), val))
      f.write("\n")
    }
    
    f.write(_INTL("#============================================\n"))
    f.write(_INTL("# Switches (length={1})\n", $game_switches.length))
    f.write(_INTL("#============================================\n"))
    
    $game_switches.each_with_index { |val, i|
      f.write(_INTL("{1}= {2}", i.to_s.ljust(5), val))
      f.write("\n")
    }
  }
  pbMessage("Done writing variables.txt.")
end

But if you run this at the start of a game, it's most probable that no variable is defined.

 

[IronLord]

Thank you for the quick reply. I tested your code and it showed a length of 0. And indeed, the problem was that no variables were defined yet. It worked as soon as I changed a variable before calling the function.

 

[IronLord]

Sorry for troubling you again, but I have one last question. Is there a way to read something in from a text file? For example: I have a text file with a 1 as the only text in it. I would like to read in this text file so it returns true if it reads in 1.

 

[StCooler]

Try something with:

def pbCheckIfEqual1
  File.open(filename,"rb") { |f|
    f.each_line { |line|
      return true if line == "1"
    }
  }
  return false
end

But I would strongly recommend NOT to use one file just for storing only one variable. The game variables are made for this purpose.

 

[IronLord]

Thank you, but the reason I asked this was because I'm working on a project where I could change something in the game by reading in sensors. In this case it's an ultrasonic sensor. If the sensor detects something in front, it will write a 1 to a text file, which i can then use in this function. Then I can use the conditional branch to change a variable if I need to.