[2.0.8] Nearby rail blocks are considered one

[KikuGIe]

On the right model the signals attach to the same coordinate, which makes the magenta and bottom aqua tracks cross themselves, which shouldn't be possible in this configuration. Ideally, only the magenta one should cross, while the bottom blue should be 2 different tracks.
The left model is how it should work.

10-22-2024, 00-37-06.png (1.33 MiB) Viewed 588 times

10-22-2024, 00-40-51.png (1.26 MiB) Viewed 588 times

[robot256]

Some of the signal spots on the new curved rails are actually some distance from the block break points they control. This can be really powerful in tightly-packed junctions, but has some side effects as you discovered.

[sparr]

In this case they aren't very far apart. Less than half a rail (1 tile) as I see it. It just happens to be half a rail in an unhelpful direction.

[KikuGIe]

(Excuse my poor drawing) Here's approximately how the blocks behave:

10-22-2024, 09-23-12.png (4.9 KiB) Viewed 494 times

The rail joint for both is on the same coordinate, so it thinks that the aqua track is crossing itself.

[sparr]

If two trains both drive on the cyan rails until their nose is at the rail block division, will they visually collide? Will their collision boxes overlap?

[boskid]

Thanks for the report. This is Not a bug.

When 2 rails pieces overlap each other then they are forced to be in the same rail block. In this case both rails above the junction overlap each other and both rails in below the junction overlap each other but they do not overlap top-bottom so this is what you get.

show-rail-segment-collision-boxes debug layer:

10-27-2024, 21-43-00.png (339.43 KiB) Viewed 313 times

[Steen]

Thanks for the report. This is Not a bug.

When 2 rails pieces overlap each other then they are forced to be in the same rail block. In this case both rails above the junction overlap each other and both rails in below the junction overlap each other but they do not overlap top-bottom so this is what you get.

show-rail-segment-collision-boxes debug layer:
10-27-2024, 21-43-00.png

I find this really unintuitive behaviour:

viewtopic.php?f=47&t=119501

Maybe dont allow signal placement in these cases? They dont do what you expert anyways.

[KikuGIe]

Yea, with new rails the signals can be confusing in some places and sometimes they don't split the track