* Leave the road stop

 * @param rv the vehicle that leaves the stop

 */

void RoadStop::Leave(RoadVehicle *rv)

{

	/* Vehicle is leaving a road stop tile, mark bay as free

		* For drive-through stops, only do it if the vehicle stopped here */

	if (IsStandardRoadStopTile(rv->tile) || HasBit(rv->state, RVS_IS_STOPPING)) {

		this->FreeBay(HasBit(rv->state, RVS_USING_SECOND_BAY));

		ClrBit(rv->state, RVS_IS_STOPPING);

	}

	if (IsStandardRoadStopTile(rv->tile)) this->SetEntranceBusy(false);

}

/**

 * Enter the road stop

 * @param rv   the vehicle that enters the stop

 * @return whether the road stop could actually be entered

 */

bool RoadStop::Enter(RoadVehicle *rv)

{

	if (IsStandardRoadStopTile(this->xy)) {

		/* For normal (non drive-through) road stops

			* Check if station is busy or if there are no free bays or whether it is a articulated vehicle. */

		if (this->IsEntranceBusy() || !this->HasFreeBay() || rv->HasArticulatedPart()) return false;

		SetBit(rv->state, RVS_IN_ROAD_STOP);

		/* Allocate a bay and update the road state */

		uint bay_nr = this->AllocateBay();

		SB(rv->state, RVS_USING_SECOND_BAY, 1, bay_nr);

		/* Mark the station entrace as busy */

		this->SetEntranceBusy(true);

		return true;

	}

	/* Vehicles entering a drive-through stop from the 'normal' side use first bay (bay 0). */

	byte side = ((DirToDiagDir(rv->direction) == ReverseDiagDir(GetRoadStopDir(this->xy))) == (rv->overtaking == 0)) ? 0 : 1;

	if (!this->IsFreeBay(side)) return false;

	/* Check if the vehicle is stopping at this road stop */

	if (GetRoadStopType(this->xy) == (rv->IsBus() ? ROADSTOP_BUS : ROADSTOP_TRUCK) &&

			rv->current_order.ShouldStopAtStation(rv, GetStationIndex(this->xy))) {

		SetBit(rv->state, RVS_IS_STOPPING);

		this->AllocateDriveThroughBay(side);

	}

	/* Indicate if vehicle is using second bay. */

	if (side == 1) SetBit(rv->state, RVS_USING_SECOND_BAY);

	/* Indicate a drive-through stop */

	SetBit(rv->state, RVS_IN_DT_ROAD_STOP);

	return true;

}

/**