[0.14.22] Unreachable train stations

[aaargha]

Trains coming from curved rails that try to enter stops close to the joint do not actually reach the station, it just gets really close. Changing/placing/removing any rail/signal/stop makes the train connect with the stop letting it continue until it gets stuck there again.

To use the reproduction save just load it up and set both the trains to automatic. The left one will bug out and the right one should work.

[Rseding91]

The train stop is too close to the junction - it hast to be another tile forward as you've shown in order for it to work.

That's not a bug.

[aaargha]

Well, then we have three different bugs to contend with.

1. Faulty UI, train stops advertise paths that cannot connect with it.
2. Placing rails/signals/stops (anywhere, it need not even be related to this system) can make trains stop at train stops they're not supposed to be able to reach.
3. Trains try to path to train stops that they cannot reach. Should show no path message.

[aaargha]

Here is a better picture of what happens.

The train finds a valid path.
It tries to go to the stop.
It stops about a pixel short of the stop.
It stays there forever.

Triggering the global repath (building a rail segment or such) will enable the train to move the last bit and actually make it to the stop.

[fregate84]

ScreenShot001.jpg (55.29 KiB) Viewed 4017 times

If you add one rail after the stop, this set up is working. no bug. I try to do a loop and it's working

[aaargha]

Good find, that does seem to make some of the configurations work. The one in the first post is still broken even with the added rail though (it's how I first encountered it).

Hopefully your added info will help the devs find the problem.

[aaargha]

As far as I can tell this is resolved in 0.15.1, I can't reproduce it any more at least.

[posila]

Hi, thanks for letting us know. We made some changes in train pathfinding to make it faster, so as side effect this probably got fixed.