Prevent train reversing when wholly inside a train depot

See: #316, https://github.com/OpenTTD/OpenTTD/issues/9520
This commit is contained in:
Jonathan G Rennison
2021-08-29 16:37:04 +01:00
parent 16f2ef227b
commit fea967bbbf

View File

@@ -2715,6 +2715,14 @@ static void AdvanceWagonsAfterSwap(Train *v)
}
}
static bool IsWholeTrainInsideDepot(const Train *v)
{
for (const Train *u = v; u != nullptr; u = u->Next()) {
if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
}
return true;
}
/**
* Turn a train around.
* @param v %Train to turn around.
@@ -2722,6 +2730,7 @@ static void AdvanceWagonsAfterSwap(Train *v)
void ReverseTrainDirection(Train *v)
{
if (IsRailDepotTile(v->tile)) {
if (IsWholeTrainInsideDepot(v)) return;
InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
}