Train Signal UI Oddity

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Fast Inserter
Fast Inserter
Posts: 121
Joined: Wed Aug 23, 2017 10:17 pm

Train Signal UI Oddity

Post by SuicideJunkie »

I was working on a scheme to detect a train stopped at a closed signal in order to trigger logic, by reading a signal just ahead of the closed signal going red... except it never went red...

The right hand signal is permanently closed via logic for this example. The test train is pathing to a temp stop to the right of the signal.
train_signalA1.png (926.12 KiB) Viewed 241 times
Bizarrely, the middle signal is Yellow, when the train is supposedly stopped waiting at the closed signal beyond it.

The yellow signal does appear to be truthful, since a perpendicular train doesn't collide, and the signal goes green if the train is switched to manual mode.
It seems like the nose of the train is stopped at the red signal, but the hitbox of the train is still behind the yellow signal? At the same time, the clickbox of it does extend well into the intersection.
train_signalA2.png (677.56 KiB) Viewed 241 times
Given the logic seems internally consistent, I don't think this really counts as a bug, but given that it is quite unintuitive and unexpected, I figured I should bring it up around here.

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