On Wed, 30 Jun 2010, Matthias Pfafferodt wrote: > Am Wednesday 30 June 2010 19:34:48 schrieb John Wilson: >>> * Very large maps: >>> For Longturn games, I think it should be possible to have much larger >>> maps. This would allow many more players to play simulaneously. There >>> seems to be a limit of 256x256 tiles at the moment. I have done some >>> experiments with maps of 1024x1024 tiles, but I get mostly segmentation >>> faults. >> >> A while ago I requested the max map size to be raised from 29 to 30 in bug >> #14661 and pepeto said this: >> >> "As far as I know, the maximum number of tiles is (2^15 - 1) because on >> some >> places, the code assume the tile index is an signed short integer (e.g. >> path finding code). >> >> The size is automatically adjusted on the generator, and usually you don't >> get exactly the number of tiles you requested. So, a margin must be hold." >> >> Maybe that gives a little more insight. > > Yes, I did checked the code. If one wants to change the maximal number of > tiles (= map size) a lot of code has to be rewritten. If you take the numbers > it would be possible to go up to (2^15 - 1) = 32767 tiles. > > If I remember correctly, one could replace the signed short integer by a > signed integer. This would increase the possible map size to 2^31 - 1 but > would also increase the calculation time for the path finding code as well as > the memory requirement.
I'm very positive to increasing the maximum map size, and also maximum number of players. Would anyone be interested in creating a patch to increase the maximum map size and player limit? It could be a compile-time configuration-option if necessary. As Matthias said, it would require changes to the path-finding code. I think it would also require changes to the map generators, and rendering of the overview map in the clients. Regards, Andreas R. _______________________________________________ Freeciv-dev mailing list [email protected] https://mail.gna.org/listinfo/freeciv-dev
