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[2.0.69] Underground belts not avoiding underground belts

Posted: Mon Sep 29, 2025 5:59 pm
by fi5hii
The feature of avoiding obstacles (it might be called smart belts as well) doesn't work when you're placing another tier of underground belts over the existing ones (belt weaving)
this probably has something to do with the fact that you can drag a higher level belt over a lower one and it upgrades it but when belt weaving with undergrounds you want to avoid that.

obsatcle avoidance with an assembler:
belts avoiding obstacles.png
belts avoiding obstacles.png (394.49 KiB) Viewed 193 times
2025-09-29 19-33-06.mp4
(9.86 MiB) Downloaded 22 times
When belt weaving this is the expected result; the range of fast underground belts would limit so it avoids the existing ones and fit inbetween:
expected belt result.png
expected belt result.png (391.7 KiB) Viewed 193 times
What actually happens is some of the belts get upgraded and some of them get completely removed resulting in this:
actual belt result.png
actual belt result.png (391.44 KiB) Viewed 193 times
2025-09-29 19-36-01.mp4
(14.95 MiB) Downloaded 14 times
It would be amazing if this could be solved so the obstacle avoidance works on underground belts as well since then it would be so much easier making belt weaving setups with just dragging and not having to place them down manually or using blueprints