The International Simutrans Forum

 

Author Topic: Can't build bridges  (Read 6224 times)

0 Members and 1 Guest are viewing this topic.

PeteS

  • Guest
Can't build bridges
« on: December 25, 2014, 05:15:53 PM »
I've just downloaded the latest simutrans, and find that in the basic PAK I can build rail bridges, but as soon as I use the pak128.britain, I can't. I've tried all the combinations of track and bridge I can think of. Any ideas?

Thanks

Pete S.

Offline jamespetts gb

  • Simutrans-Extended project coordinator
  • Devotee
  • *
  • Posts: 18038
  • Cake baker
    • Bridgewater-Brunel
  • Languages: EN
Re: Can't build bridges
« Reply #1 on: December 26, 2014, 11:32:17 AM »
What happens when you try to build a bridge?

PeteS

  • Guest
Re: Can't build bridges
« Reply #2 on: December 28, 2014, 04:59:17 AM »
I've been experimenting......

In previous versions, if I want to create a bridge across a river, what I do is run the track down the slope on either side, select my bridge and click on the track on the slope. A bridge appears.

In the latest version, the bridge does not appear.

The only way that I can make a bridge appear is to raise the land on either side of the river, and then build as normal and I then get a bridge. Only I've had to raise the bridge abutments to do so. It's easier to delete the river and drop in and out of the river bed with my track than build a bridge. It seems impossible to build a flat bridge.

I've started another game, and I noticed that I had the same issues with roads in a town that needed to cross a river. The software can generate flat bridges when it builds the world, but I can't. Even deleting a generated bridge and trying to rebuild it doesn't work.

I'd include a screen shot, but I don't think that is working as I can't find any picture files with a current date anywhere on my PC.........

It all worked fine before!

Thanks

Pete S.

Offline jamespetts gb

  • Simutrans-Extended project coordinator
  • Devotee
  • *
  • Posts: 18038
  • Cake baker
    • Bridgewater-Brunel
  • Languages: EN
Re: Can't build bridges
« Reply #3 on: December 28, 2014, 10:32:06 AM »
Have you tried dragging the bridge over the gap after you have put the track on both sides?

PeteS

  • Guest
Re: Can't build bridges
« Reply #4 on: December 28, 2014, 07:40:46 PM »
Yes, I've tried dragging. See the attached game save for river crossings I can create.

PeteS

  • Guest
Re: Can't build bridges
« Reply #5 on: December 28, 2014, 08:03:55 PM »
OK, I've done lots of playing, with more tries using dragging.

Build track to the edge of the valley, but not down onto the slope.
Repeat for the other side.
We now have two tracks that come to the edge of the valley but not down the slope.
Drag a bridge from slope to slope. That seems to work ok.

I've tested that the game treats it as one piece of track by electrifying the track from one end to the other. Seems good.

This appears to be a change from previous versions of the game

Thanks for your help, dragging was the answer.

Keith

  • Guest
Re: Can't build bridges
« Reply #6 on: January 30, 2015, 03:02:04 PM »
Same problem.  I can build road bridges, but not rail.  They will not build over roads or other rail tracks.  Most annoying.  Even after deleting and downloading the whole program again.

Offline Vladki cz

  • Devotee
  • *
  • Posts: 2431
    • My addons, mostly roadsigns
  • Languages: EN, CS
Re: Can't build bridges
« Reply #7 on: January 30, 2015, 05:54:35 PM »
Bridge over road, rail, canal or navigable river must be on full height slope. Vehicles cannot pass under half height bridges. It may be dependent on pakset.

Offline prissi

  • Developer
  • Administrator
  • *
  • Posts: 9353
  • Languages: De,EN,JP
Re: Can't build bridges
« Reply #8 on: March 05, 2015, 09:11:17 PM »
The new introduction of hal ehight slopes without double slope start on an equal ground has some consequences:

First one needs two heightlevel difference.

Second, one needs a bridge that on its empty start tile support two height differences. Road do, tracks do not in pak128.britain, as far as I know.

You can set way_height_clearance=1 in semiconf.tab to enable rail bridge over rivers and roads as before.

PeteS

  • Guest
Re: Can't build bridges
« Reply #9 on: March 24, 2015, 04:11:47 AM »
That makes some sense.

It sounds like a demonstration of the law of unintended consequences.

Thank you all for taking the time to reply. :)