I want to save a game, but I can not do this with save_game. save_game can not be used among other instances of the game, and I can't load a saved file when I editted the code. So what's the best way to make a save file? I suppose I have to write into a text file then. But this is very hard to do.

The case is that I have an editor where you can place entities, but ofcourse I want to save your home cooked level and load it another time when you play it. Is there really no other way than writing to a text file?

Thanx in advance.