C++ MESegment::hasSpaceFor方法代码示例

void
MELoop::teleportVehicle(MEVehicle* veh, MESegment* const toSegment) {
    const SUMOTime leaveTime = veh->getEventTime();
    MESegment* const onSegment = veh->getSegment();
    const bool teleporting = (onSegment == 0); // is the vehicle already teleporting?
    // try to find a place on the current edge
    MESegment* teleSegment = toSegment->getNextSegment();
    while (teleSegment != 0 && !teleSegment->hasSpaceFor(veh, leaveTime)) {
        // @caution the time to get to the next segment here is ignored XXX
        teleSegment = teleSegment->getNextSegment();
    }
    if (teleSegment != 0) {
        if (!teleporting) {
            // we managed to teleport in a single jump
            WRITE_WARNING("Teleporting vehicle '" + veh->getID() + "'; waited too long, from edge '" + onSegment->getEdge().getID()
                          + "':" + toString(onSegment->getIndex())
                          + " to edge '" + teleSegment->getEdge().getID()
                          + "':" + toString(teleSegment->getIndex())
                          + ", time " + time2string(leaveTime) + ".");
            MSNet::getInstance()->getVehicleControl().registerTeleportJam();
        }
        changeSegment(veh, leaveTime, teleSegment, true);
        teleSegment->setEntryBlockTime(leaveTime); // teleports should not block normal flow
    } else {
        // teleport across the current edge and try insertion later
        if (!teleporting) {
            // announce start of multi-step teleport, arrival will be announced in changeSegment()
            WRITE_WARNING("Teleporting vehicle '" + veh->getID() + "'; waited too long, from edge '" + onSegment->getEdge().getID()
                          + "':" + toString(onSegment->getIndex()) + ", time " + time2string(leaveTime) + ".");
            MSNet::getInstance()->getVehicleControl().registerTeleportJam();
            // remove from current segment
            onSegment->send(veh, 0, leaveTime);
            // mark veh as teleporting
            veh->setSegment(0, 0);
        }
        // @caution microsim uses current travel time teleport duration
        const SUMOTime teleArrival = leaveTime + TIME2STEPS(veh->getEdge()->getLength() / veh->getEdge()->getSpeedLimit());
        const bool atDest = veh->moveRoutePointer();
        if (atDest) {
            // teleporting to end of route
            changeSegment(veh, teleArrival, 0, true);
        } else {
            veh->setEventTime(teleArrival);
            addLeaderCar(veh, 0);
            // teleporting vehicles must react to rerouters
            getSegmentForEdge(*veh->getEdge())->addReminders(veh);
            veh->activateReminders(MSMoveReminder::NOTIFICATION_JUNCTION);
        }
    }
}

bool
MSEdge::insertVehicle(SUMOVehicle& v, SUMOTime time, const bool checkOnly) const {
    // when vaporizing, no vehicles are inserted, but checking needs to be successful to trigger removal
    if (isVaporizing()) {
        return checkOnly;
    }
    const SUMOVehicleParameter& pars = v.getParameter();
    const MSVehicleType& type = v.getVehicleType();
    if (pars.departSpeedProcedure == DEPART_SPEED_GIVEN && pars.departSpeed > getVehicleMaxSpeed(&v)) {
        if (type.getSpeedDeviation() > 0 && pars.departSpeed <= type.getSpeedFactor() * getSpeedLimit() * (2 * type.getSpeedDeviation() + 1.)) {
            WRITE_WARNING("Choosing new speed factor for vehicle '" + pars.id + "' to match departure speed.");
            v.setChosenSpeedFactor(type.computeChosenSpeedDeviation(0, pars.departSpeed / (type.getSpeedFactor() * getSpeedLimit())));
        } else {
            throw ProcessError("Departure speed for vehicle '" + pars.id +
                               "' is too high for the departure edge '" + getID() + "'.");
        }
    }
    if (checkOnly && v.getEdge()->getPurpose() == MSEdge::EDGEFUNCTION_DISTRICT) {
        return true;
    }
    if (!checkOnly) {
        std::string msg;
        if (!v.hasValidRoute(msg)) {
            if (MSGlobals::gCheckRoutes) {
                throw ProcessError("Vehicle '" + v.getID() + "' has no valid route. " + msg);
            } else if (v.getEdge()->getPurpose() == MSEdge::EDGEFUNCTION_DISTRICT) {
                WRITE_WARNING("Removing vehicle '" + pars.id + "' which has no valid route.");
                MSNet::getInstance()->getInsertionControl().descheduleDeparture(&v);
                return false;
            }
        }
    }
    if (MSGlobals::gUseMesoSim) {
        SUMOReal pos = 0.0;
        switch (pars.departPosProcedure) {
            case DEPART_POS_GIVEN:
                if (pars.departPos >= 0.) {
                    pos = pars.departPos;
                } else {
                    pos = pars.departPos + getLength();
                }
                if (pos < 0 || pos > getLength()) {
                    WRITE_WARNING("Invalid departPos " + toString(pos) + " given for vehicle '" +
                                  v.getID() + "'. Inserting at lane end instead.");
                    pos = getLength();
                }
                break;
            case DEPART_POS_RANDOM:
            case DEPART_POS_RANDOM_FREE:
                pos = RandHelper::rand(getLength());
                break;
            default:
                break;
        }
        bool result = false;
        MESegment* segment = MSGlobals::gMesoNet->getSegmentForEdge(*this, pos);
        MEVehicle* veh = static_cast<MEVehicle*>(&v);
        if (pars.departPosProcedure == DEPART_POS_FREE) {
            while (segment != 0 && !result) {
                if (checkOnly) {
                    result = segment->hasSpaceFor(veh, time, true);
                } else {
                    result = segment->initialise(veh, time);
                }
                segment = segment->getNextSegment();
            }
        } else {
            if (checkOnly) {
                result = segment->hasSpaceFor(veh, time, true);
            } else {
                result = segment->initialise(veh, time);
            }
        }
        return result;
    }
    if (checkOnly) {
        switch (v.getParameter().departLaneProcedure) {
            case DEPART_LANE_GIVEN:
            case DEPART_LANE_DEFAULT:
            case DEPART_LANE_FIRST_ALLOWED: {
                const SUMOReal occupancy = getDepartLane(static_cast<MSVehicle&>(v))->getBruttoOccupancy();
                return occupancy == (SUMOReal)0 || occupancy * myLength + v.getVehicleType().getLengthWithGap() <= myLength;
            }
            default:
                for (std::vector<MSLane*>::const_iterator i = myLanes->begin(); i != myLanes->end(); ++i) {
                    const SUMOReal occupancy = (*i)->getBruttoOccupancy();
                    if (occupancy == (SUMOReal)0 || occupancy * myLength + v.getVehicleType().getLengthWithGap() <= myLength) {
                        return true;
                    }
                }
        }
        return false;
    }
    MSLane* insertionLane = getDepartLane(static_cast<MSVehicle&>(v));
    return insertionLane != 0 && insertionLane->insertVehicle(static_cast<MSVehicle&>(v));
}