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. Matthias -- Matthias Pfafferodt - http://www.mapfa.de Matthias.Pfafferodt <at> mapfa.de _______________________________________________ Freeciv-dev mailing list Freeciv-dev@gna.org https://mail.gna.org/listinfo/freeciv-dev
