[funpatch] play simutrans on a torus

[gerw]

With this patch you can play simutrans on a torus, i.e. if you leave the map on the top/left, you will re-enter it at the bottom/right and vice versa.

There are still some bugs (wegbauer and income calculation), but it is still playable.

I didn't aimed, that it comes into trunk. I just wanted to test it and now you can test it, too.

You can find the path at www.tu-chemnitz.de/~gerw/patches/torus_v2.patch.

Edit: Income calculation should work now.

[MoTw]

Sounds funny! But when clicking the link it says "Error 404"!  :'(

[gerw]

Should work now. I've forgotten the "/patches".

[gauthier]

ways and paths can be built trough the limits of the map ?

[gerw]

Yes. And vehicles can drive through. If all works perfect, you shouldn't notice the map borders at all.

[VS]

That sounds like fun Too bad you cannot allow Simutrans to be played on a sphere!

[gerw]

That sounds like fun Too bad you cannot allow Simutrans to be played on a sphere!

But it could be possible (with some work) to play simutrans on a Cross-cap. It's almost a sphere...

[gauthier]

there is a little big problem ... ingame map extension couldn't be used anymore :/

[Isaac Eiland-Hall]

Ooh, this does sound like fun

[gerw]

there is a little big problem ... ingame map extension couldn't be used anymore :/

Of course. You can't extend your map, if you built over the edges. So map extension is disabled. You can enable it by reverting the changes in simwerkz.h

[Dwachs]

there is a little big problem ... ingame map extension couldn't be used anymore :/

why would you like to enlarge an infinite map (ie a map without borders) ?

[gauthier]

for the same reaseon as normal maps

[prissi]

I linke the idea of an torus map. However, I fear several stuff need still to be fixed, like the income and the factory-chain builder and probably some other places too.

[gerw]

The income is already fixed. And also connection of factories should work right, since I used the function welt->torus_dist, which calculates the distance of to coordinates on the torus.

One thing that doesn't work yet is wegbauer_t::calc_distance. It is easy, if you calculate routes from a single starting point to an initial end point. But if you consider several end points, some additional logic is needed.

And I think, there are some differences of koord(3d) left, which should be replaced by welt->koord_diff.

[VS]

Does this patch completely rule out map enlargement, or is it mutually exclusive per-map feature?

[gerw]

In the current version of the patch, all maps are tori. Therefore map enlargement is disabled.

[gauthier]

It could be included as a setting in new world window.