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

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * 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 "ns3/object.h"
#include "ns3/nstime.h"
#include "ns3/event-id.h"
#include "ns3/rectangle.h"
#include "ns3/random-variable-stream.h"
#include "ns3/mobility-model.h"
#include "ns3/constant-velocity-helper.h"
#include "ns3/building.h"

namespace ns3 {


class RandomWalk2dOutdoorMobilityModel : public MobilityModel
{
public:
  static TypeId GetTypeId (void);
  enum Mode
  {
    MODE_DISTANCE,
    MODE_TIME
  };

private:
  void Rebound (Time timeLeft);
  void AvoidBuilding (Time delayLeft, Vector intersectPosition);
  void DoWalk (Time timeLeft);
  void DoInitializePrivate (void);
  std::pair<bool, Ptr<Building> > IsLineClearOfBuildings (Vector currentPosition, Vector nextPosition ) const;
  Vector CalculateIntersectionFromOutside (const Vector &current, const Vector &next, const Box boundaries) const;

  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; 
  double m_epsilon; 
  uint32_t m_maxIter; 
  Vector m_prevPosition; 
};


} // namespace ns3

#endif /* RANDOM_WALK_2D_OUTDOOR_MOBILITY_MODEL_H */