Freeciv

Note: This patch does not include any code determining whether the current count is the actual full size of a given region, or whether the region is still bordering unknown tiles. We'll want something like that eventually, but we'll have to find a good spot to do it after we've received updated info for all tiles.

Alina Lenk wrote in #note-3:

we'll have to find a good spot to do it

Found a way to track it incrementally; updated the patch. This does add client-specific data to the civ_map struct that needs to be freed, so map_free() now also takes a server_side parameter (like map_init()).