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Codechange: Iterate with VehiclesOnTile when connecting free wagon chains

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This commit is contained in:
SamuXarick
2025-05-16 18:04:10 +01:00
parent 1b0fd0e6fd
commit 55ec676391
1 changed files with 13 additions and 6 deletions
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19
src/train_cmd.cpp
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@@ -672,15 +672,22 @@ static CommandCost CmdBuildRailWagon(DoCommandFlags flags, TileIndex tile, const
CheckConsistencyOfArticulatedVehicle(v);
/* Try to connect the vehicle to one of free chains of wagons. */
for (Train *w : Train::Iterate()) {
if (w->tile == tile && ///< Same depot
w->IsFreeWagon() && ///< A free wagon chain
std::vector<VehicleID> freewagons;
for (Vehicle *u : VehiclesOnTile(tile)) {
if (u->type != VEH_TRAIN) continue;
Train *w = Train::From(u);
if (w->IsFreeWagon() && ///< A free wagon chain
w->engine_type == e->index && ///< Same type
w->First() != v && ///< Don't connect to ourself
!w->vehstatus.Test(VehState::Crashed)) { ///< Not crashed/flooded
if (Command<CMD_MOVE_RAIL_VEHICLE>::Do(DoCommandFlag::Execute, v->index, w->Last()->index, true).Succeeded()) {
break;
}
freewagons.push_back(w->Last()->index);
}
}
std::ranges::sort(freewagons);
for (VehicleID veh_id : freewagons) {
if (Command<CMD_MOVE_RAIL_VEHICLE>::Do(DoCommandFlag::Execute, v->index, veh_id, true).Succeeded()) {
break;
}
}
}