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Fix #12302: Allow empty train engines to use an invalid cargo type. (#12325)

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The cargo type will be forced to the first available type (usually passengers) instead of the engine being disabled.
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Peter Nelson 2024-03-17 16:23:14 +00:00 committed by GitHub
parent 322ca6ef54
commit 88cf99017a
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1 changed files with 8 additions and 0 deletions
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src/newgrf.cpp
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@ -9161,6 +9161,14 @@ static void CalculateRefitMasks()
ei->cargo_type = (CargoID)FindFirstBit(ei->refit_mask);
}
}
if (!IsValidCargoID(ei->cargo_type) && e->type == VEH_TRAIN && e->u.rail.railveh_type != RAILVEH_WAGON && e->u.rail.capacity == 0) {
/* For train engines which do not carry cargo it does not matter if their cargo type is invalid.
* Fallback to the first available instead, if the cargo type has not been changed (as indicated by
* cargo_label not being CT_INVALID). */
if (GetActiveCargoLabel(ei->cargo_label) != CT_INVALID) {
ei->cargo_type = static_cast<CargoID>(FindFirstBit(_standard_cargo_mask));
}
}
if (!IsValidCargoID(ei->cargo_type)) ei->climates = 0;
/* Clear refit_mask for not refittable ships */