Merry sunday people. I’ve been trying to study Pickles today in Python and I had this small strip of code which I’m having a slight problem with. I’m using Ubuntu and Blender 2.62.
I keep getting error: line 16
scores = pickle.load(f)
“io.UnsupportedOperation: read”
def loadscores():
import bge
import pickle
import os
logic = bge.logic
filename = "scores.save"
file = os.path.join(bge.logic.expandPath("//assets/python/"),filename)
name = "Matti"
score = 3400
data = [name, score]
with open(file, 'wb') as f:
pickle.dump(data, f)
scores = pickle.load(f)
print(scores)
I personally wouldn’t use pickles. They can be relatively slow. Since I don’t think what your doing is too complicated, I’d just have Python parse to a txt file.
But wouldn’t it be silly to leave a highscore table out in the open as a txt file. Someone could just slap overly huge highscores and a name and save the file?
Hah doh, should have noticed but hadn’t had my cup of coffee yet, thank you for an answer
Is it really as easy to “manipulate” scores stored as binary data in pickles? I mean of course I can’t prevent it fully with these methods, but just trying to make it less attractive to a common gamer to do so.
If someone really wants to cheat, they’ll find a way.
I can just fire up a python interpreter, load the pickled data structure, modify it, and then store it back to the file - I don’t have to do anything from within the game.
Actually, even if you open ‘scores.save’ in a text editor, you should see recognizable patterns (strings will show up as strings, even in a binary file). It doesn’t take much to figure things out from there.
