C++ Order::IsType方法代码示例

/**
 * Add or remove waiting times from an order.
 * @param tile Not used.
 * @param flags Operation to perform.
 * @param p1 Various bitstuffed elements
 * - p1 = (bit  0-19) - Vehicle with the orders to change.
 * - p1 = (bit 20-27) - Order index to modify.
 * - p1 = (bit    28) - Whether to change the waiting time or the travelling
 *                      time.
 * @param p2 The amount of time to wait.
 * - p2 = (bit  0-15) - Waiting or travelling time as specified by p1 bit 28
 * @param text unused
 * @return the cost of this operation or an error
 */
CommandCost CmdChangeTimetable(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
	VehicleID veh = GB(p1, 0, 20);

	Vehicle *v = Vehicle::GetIfValid(veh);
	if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;

	CommandCost ret = CheckOwnership(v->owner);
	if (ret.Failed()) return ret;

	VehicleOrderID order_number = GB(p1, 20, 8);
	Order *order = v->GetOrder(order_number);
	if (order == NULL || order->IsType(OT_IMPLICIT)) return CMD_ERROR;

	bool is_journey = HasBit(p1, 28);

	int wait_time   = order->wait_time;
	int travel_time = order->travel_time;
	if (is_journey) {
		travel_time = GB(p2, 0, 16);
	} else {
		wait_time   = GB(p2, 0, 16);
	}

	if (wait_time != order->wait_time) {
		switch (order->GetType()) {
			case OT_GOTO_STATION:
				if (order->GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) return_cmd_error(STR_ERROR_TIMETABLE_NOT_STOPPING_HERE);
				break;

			case OT_CONDITIONAL:
				break;

			default: return_cmd_error(STR_ERROR_TIMETABLE_ONLY_WAIT_AT_STATIONS);
		}
	}

	if (travel_time != order->travel_time && order->IsType(OT_CONDITIONAL)) return CMD_ERROR;

	if (flags & DC_EXEC) {
		if (wait_time   != order->wait_time)   ChangeTimetable(v, order_number, wait_time,   false);
		if (travel_time != order->travel_time) ChangeTimetable(v, order_number, travel_time, true);
	}

	return CommandCost();
}

AIStationList_Vehicle::AIStationList_Vehicle(VehicleID vehicle_id)
{
	if (!AIVehicle::IsValidVehicle(vehicle_id)) return;

	Vehicle *v = ::Vehicle::Get(vehicle_id);

	for (Order *o = v->GetFirstOrder(); o != NULL; o = o->next) {
		if (o->IsType(OT_GOTO_STATION)) this->AddItem(o->GetDestination());
	}
}

/**
 * Unpacks a order from savegames made with TTD(Patch)
 * @param packed packed order
 * @return unpacked order
 */
Order UnpackOldOrder(uint16 packed)
{
	Order order = UnpackVersion4Order(packed);

	/*
	 * Sanity check
	 * TTD stores invalid orders as OT_NOTHING with non-zero flags/station
	 */
	if (order.IsType(OT_NOTHING) && packed != 0) order.MakeDummy();

	return order;
}

static void Load_ORDR()
{
	if (IsSavegameVersionBefore(5, 2)) {
		/* Version older than 5.2 did not have a ->next pointer. Convert them
		 * (in the old days, the orderlist was 5000 items big) */
		size_t len = SlGetFieldLength();

		if (IsSavegameVersionBefore(5)) {
			/* Pre-version 5 had another layout for orders
			 * (uint16 instead of uint32) */
			len /= sizeof(uint16);
			uint16 *orders = MallocT<uint16>(len + 1);

			SlArray(orders, len, SLE_UINT16);

			for (size_t i = 0; i < len; ++i) {
				Order *o = new (i) Order();
				o->AssignOrder(UnpackVersion4Order(orders[i]));
			}

			free(orders);
		} else if (IsSavegameVersionBefore(5, 2)) {
			len /= sizeof(uint32);
			uint32 *orders = MallocT<uint32>(len + 1);

			SlArray(orders, len, SLE_UINT32);

			for (size_t i = 0; i < len; ++i) {
				new (i) Order(orders[i]);
			}

			free(orders);
		}

		/* Update all the next pointer */
		Order *o;
		FOR_ALL_ORDERS(o) {
			/* Delete invalid orders */
			if (o->IsType(OT_NOTHING)) {
				delete o;
				continue;
			}
			/* The orders were built like this:
			 * While the order is valid, set the previous will get its next pointer set */
			Order *prev = Order::GetIfValid(order_index - 1);
			if (prev != NULL) prev->next = o;
		}
	} else {

/**
 * Update the timetable for the vehicle.
 * @param v The vehicle to update the timetable for.
 * @param travelling Whether we just travelled or waited at a station.
 */
void UpdateVehicleTimetable(Vehicle *v, bool travelling)
{
	uint timetabled = travelling ? v->current_order.travel_time : v->current_order.wait_time;
	uint time_taken = v->current_order_time;

	v->current_order_time = 0;

	if (v->current_order.IsType(OT_IMPLICIT)) return; // no timetabling of auto orders

	VehicleOrderID first_manual_order = 0;
	for (Order *o = v->GetFirstOrder(); o != NULL && o->IsType(OT_IMPLICIT); o = o->next) {
		++first_manual_order;
	}

	bool just_started = false;

	/* This vehicle is arriving at the first destination in the timetable. */
	if (v->cur_real_order_index == first_manual_order && travelling) {
		/* If the start date hasn't been set, or it was set automatically when
		 * the vehicle last arrived at the first destination, update it to the
		 * current time. Otherwise set the late counter appropriately to when
		 * the vehicle should have arrived. */
		just_started = !HasBit(v->vehicle_flags, VF_TIMETABLE_STARTED);

		if (v->timetable_start != 0) {
			v->lateness_counter = (_date - v->timetable_start) * DAY_TICKS + _date_fract;
			v->timetable_start = 0;
		}

		SetBit(v->vehicle_flags, VF_TIMETABLE_STARTED);
		SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
	}

	if (!HasBit(v->vehicle_flags, VF_TIMETABLE_STARTED)) return;

	if (HasBit(v->vehicle_flags, VF_AUTOFILL_TIMETABLE)) {
		if (travelling && !HasBit(v->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME)) {
			/* Need to clear that now as otherwise we are not able to reduce the wait time */
			v->current_order.wait_time = 0;
		}

		if (just_started) return;

		/* Modify station waiting time only if our new value is larger (this is
		 * always the case when we cleared the timetable). */
		if (!v->current_order.IsType(OT_CONDITIONAL) && (travelling || time_taken > v->current_order.wait_time)) {
			/* Round the time taken up to the nearest day, as this will avoid
			 * confusion for people who are timetabling in days, and can be
			 * adjusted later by people who aren't.
			 * For trains/aircraft multiple movement cycles are done in one
			 * tick. This makes it possible to leave the station and process
			 * e.g. a depot order in the same tick, causing it to not fill
			 * the timetable entry like is done for road vehicles/ships.
			 * Thus always make sure at least one tick is used between the
			 * processing of different orders when filling the timetable. */
			time_taken = CeilDiv(max(time_taken, 1U), DAY_TICKS) * DAY_TICKS;

			ChangeTimetable(v, v->cur_real_order_index, time_taken, travelling);
		}

		if (v->cur_real_order_index == first_manual_order && travelling) {
			/* If we just started we would have returned earlier and have not reached
			 * this code. So obviously, we have completed our round: So turn autofill
			 * off again. */
			ClrBit(v->vehicle_flags, VF_AUTOFILL_TIMETABLE);
			ClrBit(v->vehicle_flags, VF_AUTOFILL_PRES_WAIT_TIME);
		}
		return;
	}

	if (just_started) return;

	/* Vehicles will wait at stations if they arrive early even if they are not
	 * timetabled to wait there, so make sure the lateness counter is updated
	 * when this happens. */
	if (timetabled == 0 && (travelling || v->lateness_counter >= 0)) return;

	v->lateness_counter -= (timetabled - time_taken);

	/* When we are more late than this timetabled bit takes we (somewhat expensively)
	 * check how many ticks the (fully filled) timetable has. If a timetable cycle is
	 * shorter than the amount of ticks we are late we reduce the lateness by the
	 * length of a full cycle till lateness is less than the length of a timetable
	 * cycle. When the timetable isn't fully filled the cycle will be INVALID_TICKS. */
	if (v->lateness_counter > (int)timetabled) {
		Ticks cycle = v->orders.list->GetTimetableTotalDuration();
		if (cycle != INVALID_TICKS && v->lateness_counter > cycle) {
			v->lateness_counter %= cycle;
		}
	}

	for (v = v->FirstShared(); v != NULL; v = v->NextShared()) {
		SetWindowDirty(WC_VEHICLE_TIMETABLE, v->index);
	}
}

/**
 * Change timetable data of an order.
 * @param tile Not used.
 * @param flags Operation to perform.
 * @param p1 Various bitstuffed elements
 * - p1 = (bit  0-19) - Vehicle with the orders to change.
 * - p1 = (bit 20-27) - Order index to modify.
 * - p1 = (bit 28-29) - Timetable data to change (@see ModifyTimetableFlags)
 * @param p2 The amount of time to wait.
 * - p2 = (bit  0-15) - The data to modify as specified by p1 bits 28-29.
 *                      0 to clear times, UINT16_MAX to clear speed limit.
 * @param text unused
 * @return the cost of this operation or an error
 */
CommandCost CmdChangeTimetable(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
    VehicleID veh = GB(p1, 0, 20);

    Vehicle *v = Vehicle::GetIfValid(veh);
    if (v == NULL || !v->IsPrimaryVehicle()) return CMD_ERROR;

    CommandCost ret = CheckOwnership(v->owner);
    if (ret.Failed()) return ret;

    VehicleOrderID order_number = GB(p1, 20, 8);
    Order *order = v->GetOrder(order_number);
    if (order == NULL || order->IsType(OT_IMPLICIT)) return CMD_ERROR;

    ModifyTimetableFlags mtf = Extract<ModifyTimetableFlags, 28, 2>(p1);
    if (mtf >= MTF_END) return CMD_ERROR;

    int wait_time   = order->GetWaitTime();
    int travel_time = order->GetTravelTime();
    int max_speed   = order->GetMaxSpeed();
    switch (mtf) {
    case MTF_WAIT_TIME:
        wait_time = GB(p2, 0, 16);
        break;

    case MTF_TRAVEL_TIME:
        travel_time = GB(p2, 0, 16);
        break;

    case MTF_TRAVEL_SPEED:
        max_speed = GB(p2, 0, 16);
        if (max_speed == 0) max_speed = UINT16_MAX; // Disable speed limit.
        break;

    default:
        NOT_REACHED();
    }

    if (wait_time != order->GetWaitTime()) {
        switch (order->GetType()) {
        case OT_GOTO_STATION:
            if (order->GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) return_cmd_error(STR_ERROR_TIMETABLE_NOT_STOPPING_HERE);
            break;

        case OT_CONDITIONAL:
            break;

        default:
            return_cmd_error(STR_ERROR_TIMETABLE_ONLY_WAIT_AT_STATIONS);
        }
    }

    if (travel_time != order->GetTravelTime() && order->IsType(OT_CONDITIONAL)) return CMD_ERROR;
    if (max_speed != order->GetMaxSpeed() && (order->IsType(OT_CONDITIONAL) || v->type == VEH_AIRCRAFT)) return CMD_ERROR;

    if (flags & DC_EXEC) {
        switch (mtf) {
        case MTF_WAIT_TIME:
            /* Set time if changing the value or confirming an estimated time as timetabled. */
            if (wait_time != order->GetWaitTime() || (wait_time > 0 && !order->IsWaitTimetabled())) {
                ChangeTimetable(v, order_number, wait_time, MTF_WAIT_TIME, wait_time > 0);
            }
            break;

        case MTF_TRAVEL_TIME:
            /* Set time if changing the value or confirming an estimated time as timetabled. */
            if (travel_time != order->GetTravelTime() || (travel_time > 0 && !order->IsTravelTimetabled())) {
                ChangeTimetable(v, order_number, travel_time, MTF_TRAVEL_TIME, travel_time > 0);
            }
            break;

        case MTF_TRAVEL_SPEED:
            if (max_speed != order->GetMaxSpeed()) {
                ChangeTimetable(v, order_number, max_speed, MTF_TRAVEL_SPEED, max_speed != UINT16_MAX);
            }
            break;

        default:
            break;
        }
    }

    return CommandCost();
}