random-walk-2d-outdoor-mobility-model.h

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/*
 * Copyright (c) 2006,2007 INRIA
 * Copyright (c) 2019 University of Padova
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
 * Author: Michele Polese <michele.polese@gmail.com>
 */
 
#ifndef RANDOM_WALK_2D_OUTDOOR_MOBILITY_MODEL_H
#define RANDOM_WALK_2D_OUTDOOR_MOBILITY_MODEL_H
 
#include "building.h"
 
#include "ns3/constant-velocity-helper.h"
#include "ns3/event-id.h"
#include "ns3/mobility-model.h"
#include "ns3/nstime.h"
#include "ns3/object.h"
#include "ns3/random-variable-stream.h"
#include "ns3/rectangle.h"
 
namespace ns3
{
 
class RandomWalk2dOutdoorMobilityModel : public MobilityModel
{
  public:
    static TypeId GetTypeId();
 
    enum Mode
    {
        MODE_DISTANCE,
        MODE_TIME
    };
 
  private:
    void Rebound(Time timeLeft);
    void AvoidBuilding(Time delayLeft, Vector intersectPosition);
    void DoWalk(Time delayLeft);
    void DoInitializePrivate();
    std::pair<bool, Ptr<Building>> IsLineClearOfBuildings(Vector currentPosition,
                                                          Vector nextPosition) const;
    Vector CalculateIntersectionFromOutside(const Vector& current,
                                            const Vector& next,
                                            const Box boundaries) const;
 
    void DoDispose() override;
    void DoInitialize() override;
    Vector DoGetPosition() const override;
    void DoSetPosition(const Vector& position) override;
    Vector DoGetVelocity() const override;
    int64_t DoAssignStreams(int64_t) override;
 
    ConstantVelocityHelper m_helper;       
    EventId m_event;                       
    Mode m_mode;                           
    double m_modeDistance;                 
    Time m_modeTime;                       
    Ptr<RandomVariableStream> m_speed;     
    Ptr<RandomVariableStream> m_direction; 
    Rectangle m_bounds;                    
    double m_epsilon;                      
    uint32_t m_maxIter;                    
    Vector m_prevPosition; 
};
 
} // namespace ns3
 
#endif /* RANDOM_WALK_2D_OUTDOOR_MOBILITY_MODEL_H */