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Any way to detect the version of specific map save?
Posted: Mon Nov 11, 2024 5:56 am
by changchiyou
Hello, I'm working on dockerizing a Factorio map renderer that can accept map saves from any version. However, I'm currently stuck on how to retrieve the version information from a map save file.
Re: Any way to detect the version of specific map save?
Posted: Mon Nov 11, 2024 7:54 am
by MisterDoctor
I think I see it at the start of script.dat. first 8 bytes are 4 16 bit integers representing the version.
ex: 02 00 00 00 0f 00 04 00
= 2 0 15 4
= 2.0.15-4
there are similar bytes in level-init.dat but they would give 2.0.7.0.
(note I can't guarantee the meaning of the values. ie: it is not _necessarily_ the game version; could be the file or format version that is close but not identical to the game version or something like that.)
note also this thread from a long time ago where someone else was doing something similar:
viewtopic.php?t=47014
Re: Any way to detect the version of specific map save?
Posted: Mon Nov 11, 2024 8:41 am
by changchiyou
MisterDoctor wrote: Mon Nov 11, 2024 7:54 am
I think I see it at the start of script.dat. first 8 bytes are 4 16 bit integers representing the version.
ex: 02 00 00 00 0f 00 04 00
= 2 0 15 4
= 2.0.15-4
there are similar bytes in level-init.dat but they would give 2.0.7.0.
(note I can't guarantee the meaning of the values. ie: it is not _necessarily_ the game version; could be the file or format version that is close but not identical to the game version or something like that.)
note also this thread from a long time ago where someone else was doing something similar:
viewtopic.php?t=47014
I think you're right
; I found another thread here (
8568) that discusses a similar approach to retrieving the game version from .dat files.