[Freeciv-Dev] Re: Corecleanup patch updates

[Mike Kaufman <mkaufman@xxxxxxxxxxxxxx>]

On Sun, Aug 12, 2001 at 02:56:40AM +0200, Gaute B Strokkenes wrote:
> 
> You're also assuming that you can normalize x and y coordinates
> separately.  That's fine for rectangles, cylinders and tori but fails
> for Möbius strips and Klein bottles.  The last two are perfectly
> possibly, if a bit odd, choices of topology and it would be kind of
> fun to support them.

The last two are not perfectly possible. Both those surfaces are 
non-orientable.

I can dream up all kinds of orientable surfaces that would be fun or at least 
interesting to try out, but it would be nuts to code or maintain the code.

An interesting problem might be how to handle a flat playing surface in the 
shape of a triangle of circle, or better, a map with holes, or a map that wraps 
to the west but not to the east ;)

-mike