/usr/include/ns3.17/ns3/random-walk-2d-mobility-model.h is in libns3-dev 3.17+dfsg-1build1.
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/*
* Copyright (c) 2006,2007 INRIA
*
* 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>
*/
#ifndef RANDOM_WALK_2D_MOBILITY_MODEL_H
#define RANDOM_WALK_2D_MOBILITY_MODEL_H
#include "ns3/object.h"
#include "ns3/nstime.h"
#include "ns3/event-id.h"
#include "ns3/rectangle.h"
#include "ns3/random-variable-stream.h"
#include "mobility-model.h"
#include "constant-velocity-helper.h"
namespace ns3 {
/**
* \ingroup mobility
* \brief 2D random walk mobility model.
*
* Each instance moves with a speed and direction choosen at random
* with the user-provided random variables until
* either a fixed distance has been walked or until a fixed amount
* of time. If we hit one of the boundaries (specified by a rectangle),
* of the model, we rebound on the boundary with a reflexive angle
* and speed. This model is often identified as a brownian motion
* model.
*/
class RandomWalk2dMobilityModel : public MobilityModel
{
public:
static TypeId GetTypeId (void);
enum Mode {
MODE_DISTANCE,
MODE_TIME
};
private:
void Rebound (Time timeLeft);
void DoWalk (Time timeLeft);
void DoInitializePrivate (void);
virtual void DoDispose (void);
virtual void DoInitialize (void);
virtual Vector DoGetPosition (void) const;
virtual void DoSetPosition (const Vector &position);
virtual Vector DoGetVelocity (void) const;
virtual int64_t DoAssignStreams (int64_t);
ConstantVelocityHelper m_helper;
EventId m_event;
enum Mode m_mode;
double m_modeDistance;
Time m_modeTime;
Ptr<RandomVariableStream> m_speed;
Ptr<RandomVariableStream> m_direction;
Rectangle m_bounds;
};
} // namespace ns3
#endif /* RANDOM_WALK_2D_MOBILITY_MODEL_H */
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