Basically, I'm trying to compare a bunch of savegames to find where some values are stored.
First of all, it's a rogue-like interpreted in WinGlulxe. I'm dealing with almost 100% binary save files here, pretty much a direct dump from RAM with a header. I can't just Cheat Engine the game memory to modify the values. I've tried it and couldn't find anything as it's a virtual machine which uses a stack. I've done my research and it doesn't seems impossible to hack, just very difficult. I'd rather use the easy, static way which are the savegames.
Now to my conundrum: I have three files, 1, 2 and 3. All went through a slightly different character creation process.
- In 1, I have maxed strength, wisdom and intelligence.
- In 2, I have done the same. The diff between them reports differences. Probably thanks to a different RNG seed, not totally sure on the cause. The map is not YET generated. Files where I've entered the dungeon have 40+KB, these 3 differ by a few bytes at most. I have no idea why.
- Finally, in 3 I have maxed dexterity, wisdom and intelligence.
What would be the easier way to find the set of differences between 1 and 3 which ARE NOT in the set of differences between 1 and 2?
Preferably, I'd like something that would work in Windows. I know my way around Linux, but I'm in a slow connection and Ubuntu is taking a few hours to download.