[Solved] Reading Variables in Save Files from Save Screen

[AXYPB]

I am creating a game that will have an explicit content patch that adds additional scenes. With this patch present, a variable would be written to indicate that the adult version is being used. Would it be possible to store such a value in a save file such that a save screen could read it and create an insensitive button in place of a normal hotspot to prevent loading save files that could possibly be stored at a scene not present in the unpatched version?

[philat]

I don't think players would really expect that save files would be compatible between patched and unpatched versions in the first place, so I'm not sure what the use case is here.

[carrot]

You can register a callback which can add data to a dictionary (which is then saved into the savegame zip, as JSON in a file named 'json') when a game is saved:

Code: Select all

def my_save_method(dict):
    pass # add data to the dictionary

config.save_json_callbacks.append(my_save_method)

And then in screens.rpy, you can use FileJson() or renpy.slot_json() to get the dictionary from a saved game, at which point you can change the behaviour to disable clicking or show an icon, etc.

[AXYPB]

Thank you. This was the solution I was seeking.