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Ship automatic service causes them to be stuck in a loop #8022

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SamuXarick opened this issue Feb 25, 2020 · 2 comments · May be fixed by #12170
Open

Ship automatic service causes them to be stuck in a loop #8022

SamuXarick opened this issue Feb 25, 2020 · 2 comments · May be fixed by #12170
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bug Something isn't working component: pathfinder This issue is related to Pathfinder

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@SamuXarick
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SamuXarick commented Feb 25, 2020 •
edited

Version of OpenTTD

OpenTTD 20200223-master-gd1b7eb2de1 - Resolved by #11768
OpenTTD 20240128-master-g90084dc74d

Expected result

Ships either do service or not.

Actual result

Ships are stuck in a loop due to automatic servicing distance limit triggering it. They can't decide whether to head to ship depot or the dock, which are opposite directions.

Steps to reproduce

Charningstone Transport, 1960-11-25.zip - Resolved by #11768

Charningstone Transport, 1964-05-30.zip - Not resolved
@SamuXarick
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SamuXarick commented Feb 25, 2020 •
edited

I have a fix for this which involves using the pathfinder, but the idea has been rejected in the past, which was before ship path cache. Is it perhaps worth approaching it again?
https://github.com/SamuXarick/OpenTTD/tree/find-closest-reachable-ship-depot

This was referenced Apr 12, 2021
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@2TallTyler 2TallTyler added component: pathfinder This issue is related to Pathfinder bug Something isn't working labels Oct 19, 2022
This was referenced Mar 5, 2023
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@SamuXarick
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SamuXarick commented Jan 28, 2024 •
edited

Just found an edge case where this is still not resolved. See updated main topic.

Kuhnovic added a commit to Kuhnovic/OpenTTD that referenced this issue Feb 24, 2024
@Kuhnovic
Fix OpenTTD#8022: Ship automatic service causes them to be stuck in a…
fa2bc9e 
… loop
@Kuhnovic Kuhnovic linked a pull request Feb 24, 2024 that will close this issue
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bug Something isn't working component: pathfinder This issue is related to Pathfinder
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Fix #8022: Ship automatic service causes them to be stuck in a loop Kuhnovic/OpenTTD
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@SamuXarick @2TallTyler