Move latitude from generator to common code
This isn't as straightforward as I thought. Tile latitude depends on alltemperate and singlepole settings, which are only visible to the server.
I can see three options:
The latter option would probably be the most reasonable (albeit the silliest), although the first one could also work, given the temporary nature of the issue.
Reply To alienvalkyrie
send alltemperate and singlepole to the client (for the brief period of time before being replaced in #44038)
I've decided to go with that option ~> #44040
Required for #44035. Move basic latitude code from server/generator/map_topology.[ch] to common/map.[ch]. The map_colatitude() function should remain in map_topology.[ch] to convert (signed) latitude into mapgen-internal, absolute colatitude.