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Fix #12250: YAPF Trivial rail pathfinding crashes due to #12217 (#12258)

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Kuhnovic 2024-03-10 15:37:56 +01:00 committed by GitHub
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commit 005892bfdb
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src/pathfinder/yapf/yapf_rail.cpp
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@ -446,6 +446,11 @@ public:
this->FindSafePositionOnNode(pPrev); this->FindSafePositionOnNode(pPrev);
} }
/* If the best PF node has no parent, then there is no (valid) best next trackdir to return.
* This occurs when the PF is called while the train is already at its destination. */
if (pPrev == nullptr) return INVALID_TRACKDIR;
/* return trackdir from the best origin node (one of start nodes) */ /* return trackdir from the best origin node (one of start nodes) */
Node &best_next_node = *pPrev; Node &best_next_node = *pPrev;
next_trackdir = best_next_node.GetTrackdir(); next_trackdir = best_next_node.GetTrackdir();