I have been looking at how a few logistics train system works (mostly vanilla based) and one thing that is hard to handle is different train lengths.

A train of length 1-1 or 1-2 can easily go to a station designed for a train of length 1-2, 1-3, or 1-4. But there is not a good way to parameterize ...

I am not wonderful versed in how the modding API works, but the majority of the collision layers I have encountered from mods are for planet mods (new surfaces). My understanding is that surfaces are completely distinct (i.e. Nauvis surface is never going to collide with Vulcanus surface).

So, I ...