Function RoadVehController

src/roadveh_cmd.cpp:1579–1648

}

static bool RoadVehController(RoadVehicle *v)
{
	/* decrease counters */
	v->current_order_time++;
	if (v->reverse_ctr != 0) v->reverse_ctr--;

	/* handle crashed */
	if (v->vehstatus.Test(VehState::Crashed) || RoadVehCheckTrainCrash(v)) {
		return RoadVehIsCrashed(v);
	}

	/* road vehicle has broken down? */
	if (v->HandleBreakdown()) return true;
	if (v->vehstatus.Test(VehState::Stopped)) {
		v->SetLastSpeed();
		return true;
	}

	ProcessOrders(v);
	v->HandleLoading();

	if (v->current_order.IsType(OT_LOADING)) return true;

	if (v->IsInDepot()) {
		/* Check if we should wait here for unbunching. */
		if (v->IsWaitingForUnbunching()) return true;
		if (RoadVehLeaveDepot(v, true)) return true;
	}

	v->ShowVisualEffect();

	/* Check how far the vehicle needs to proceed */
	int j = v->UpdateSpeed();

	int adv_spd = v->GetAdvanceDistance();
	bool blocked = false;
	while (j >= adv_spd) {
		j -= adv_spd;

		RoadVehicle *u = v;
		for (RoadVehicle *prev = nullptr; u != nullptr; prev = u, u = u->Next()) {
			if (!IndividualRoadVehicleController(u, prev)) {
				blocked = true;
				break;
			}
		}
		if (blocked) break;

		/* Determine distance to next map position */
		adv_spd = v->GetAdvanceDistance();

		/* Test for a collision, but only if another movement will occur. */
		if (j >= adv_spd && RoadVehCheckTrainCrash(v)) break;
	}

	v->SetLastSpeed();

	for (RoadVehicle *u = v; u != nullptr; u = u->Next()) {