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-rw-r--r--advtrains/path.lua4
1 files changed, 4 insertions, 0 deletions
diff --git a/advtrains/path.lua b/advtrains/path.lua
index 7226a7b..714781a 100644
--- a/advtrains/path.lua
+++ b/advtrains/path.lua
@@ -142,6 +142,10 @@ end
-- Keeps the path intact, but invalidates all path nodes from the specified index (inclusive)
-- onwards. This has the advantage that we don't need to recalculate the whole path, and we can do it synchronously.
function advtrains.path_invalidate_ahead(train, start_idx, ignore_when_passed)
+ if not train.path then
+ -- the path wasn't even initialized. Nothing to do
+ return
+ end
local idx = atfloor(start_idx)
--atdebug("Invalidate_ahead:",train.id,"start_index",start_idx,"cur_idx",train.index)