From: Richard Mccormack <brick@...>
Date: 2010-11-29T02:44:20+09:00
Subject: Loading variables from a file [Noob Question]

Hey everyone,
I've been working on some sort of a test-based game to learn ruby (and
programming in general :) and I got stuck with my saving/loading system.
To show you what I mean, this is what I used to save the game. (I want
the code to be as modular as I can, I have some sort of an addon system
planned...)

def savegame(name, varstosave)
  savegame = File.new(name + ".tsl", "w")
     savegame.puts varstosave.to_s
     while varstosave.length != 0
        savegame.puts varstosave[0]
        savegame.puts eval(varstosave[0]).to_s
        varstosave.delete_at(0)
     end
  savegame.close
end

So, now I am trying to to load the variables from the file. I came up
with the start of a function:

def loadgame(name, varstoload)
  puts "Loading..."
  loadgame = File.open(name + ".tsl", "r")
    while varstoload.length != 0
        # ?
    end
  loadgame.close
end

Where varstoload/varstosave is an array. Problem with the loading is
that I assumed there  was a way to take the first variable name from the
array and actually use it as a variable. So, if the array is
["$intellect", "$strength"], I thought I would be able somehow to turn
a[0] into a variable object. It seems that there isn't a way to do this,
so I was wondering if there was a better way to manage the
saving/loading.
 - Thanks in advance! :)

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