MSLinkCont.cpp

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// Eclipse SUMO, Simulation of Urban MObility; see https://eclipse.org/sumo
// Copyright (C) 2004-2020 German Aerospace Center (DLR) and others.
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0/
// This Source Code may also be made available under the following Secondary
// Licenses when the conditions for such availability set forth in the Eclipse
// Public License 2.0 are satisfied: GNU General Public License, version 2
// or later which is available at
// https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html
// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
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// Helpers for link vector
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#include <config.h>

#include "MSLinkCont.h"
#include "MSLane.h"


// ===========================================================================
// method definitions
// ===========================================================================
const MSEdge*
MSLinkContHelper::getInternalFollowingEdge(const MSLane* fromLane,
        const MSEdge* followerAfterInternal) {
    //@todo to be optimized
    const MSLinkCont& lc = fromLane->getLinkCont();
    for (MSLinkCont::const_iterator j = lc.begin(); j != lc.end(); j++) {
        MSLink* link = *j;
        if (&link->getLane()->getEdge() == followerAfterInternal) {
            if (link->getViaLane() != nullptr) {
                return &link->getViaLane()->getEdge();
            } else {
                return nullptr; // network without internal links
            }
        }
    }
    return nullptr;
}


const MSLane*
MSLinkContHelper::getInternalFollowingLane(const MSLane* fromLane,
        const MSLane* followerAfterInternal) {
    //@todo to be optimized
    const MSLinkCont& lc = fromLane->getLinkCont();
    for (MSLinkCont::const_iterator j = lc.begin(); j != lc.end(); j++) {
        MSLink* link = *j;
        if (link->getLane() == followerAfterInternal) {
            if (link->getViaLane() != nullptr) {
                return link->getViaLane();
            } else {
                return nullptr; // network without internal links
            }
        }
    }
    return nullptr;
}


MSLink*
MSLinkContHelper::getConnectingLink(const MSLane& from, const MSLane& to) {
    const MSLinkCont& lc = from.getLinkCont();
    for (MSLinkCont::const_iterator j = lc.begin(); j != lc.end(); j++) {
        MSLink* link = *j;
        if (link->getLane() == &to) {
            return link;
        } else if (link->getViaLaneOrLane() == &to) {
            return link;
        }
    }
    return nullptr;
}


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