Post by thebeardedone on Jun 23, 2024 0:39:02 GMT -5
Part 1:
Is there available documentation that explains which hashes to use and where?
I'm clear on which to use for things like strings, instance numbers and filenames but still a bit unclear of exactly when the high bit needs to be set and why. Also, I've seen 24 and 56 bit hashes mentioned a few times but never a mention of where or when they might be used.
Part 2:
While working on my own hash generator I had a problem getting my code to match the results from other tools, until I noticed that it was because I was using mixed case strings for testing. It then became obvious that hash generators, such as the ones in S4S and Modding Toolbox, each convert the text to lower case prior to calculating the hash. No problem, that's a trivial change. But...
Changing the case of the text deviates from the FNV standard. Why is this done when creating hashes for The Sims (and perhaps other games)? Is it something dictated be EA or is it perhaps because the developers of those tools seem to reside in the Windows world, where case sensitivity is only very rarely a thing to be concerned with?
I'd be grateful for any light anyone can shed on either part.
Is there available documentation that explains which hashes to use and where?
I'm clear on which to use for things like strings, instance numbers and filenames but still a bit unclear of exactly when the high bit needs to be set and why. Also, I've seen 24 and 56 bit hashes mentioned a few times but never a mention of where or when they might be used.
Part 2:
While working on my own hash generator I had a problem getting my code to match the results from other tools, until I noticed that it was because I was using mixed case strings for testing. It then became obvious that hash generators, such as the ones in S4S and Modding Toolbox, each convert the text to lower case prior to calculating the hash. No problem, that's a trivial change. But...
Changing the case of the text deviates from the FNV standard. Why is this done when creating hashes for The Sims (and perhaps other games)? Is it something dictated be EA or is it perhaps because the developers of those tools seem to reside in the Windows world, where case sensitivity is only very rarely a thing to be concerned with?
I'd be grateful for any light anyone can shed on either part.
