Checksum as it is implemented now only sets the four bytes used by the checksum itself to 0 before calculating the new checksum.
It's worked fine so far, however, in D2MOO, the function indicates that last_time, play_time and map_seed should also be set to 0 before calculating checksum for versions > 91. This makes sense because those values don't really change anything about the save file itself, they're more like metadata.
More testing required.
Checksum as it is implemented now only sets the four bytes used by the checksum itself to 0 before calculating the new checksum.
It's worked fine so far, however, in D2MOO, the function indicates that last_time, play_time and map_seed should also be set to 0 before calculating checksum for versions > 91. This makes sense because those values don't really change anything about the save file itself, they're more like metadata.
More testing required.