Saving to a file

Unity Engine
1

Hi ive been looking for a tutorial on saving and havnt been able to find one, heres what i wanna do. when a function is called, i wanna have the scene make a file that saves some variables to it, then when the scene is loaded it checks if a certain files exsists if it does then it loads the variables into a certain script, how would i go about doing this?

2

with the IO class.
for example:

import System.IO;

function writeStuffToFile(){
  var stuff : String = "stuff";
  File.WriteAllText(Application.dataPath +"/stuff.txt",stuff);
} 

function readLevelFromFile(){
  var stuff : String;
  stuff = File.ReadAllText(Application.dataPath +"/stuff.txt");
  print(stuff);
}

EDIT: indeed. it should be print. thanks.

3 
  println(stuff);

I don’t think Unity supports println. You can use:

print (stuff)

or

Debug.Log (stuff)

instead.

4

I found the blog post at http://pennymo.com/2009/11/21/xml-and-unity-3d/ quite a nice read regarding reading and writing save files (and I found the tips useful). However, not really knowing the “inner workings” of anything, I can’t vouch for that being the best method in any way. Works for me, though.