/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * 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 CONSTANT_POSITION_MOBILITY_MODEL_H
#define CONSTANT_POSITION_MOBILITY_MODEL_H

#include "mobility-model.h"

namespace ns3 {

/**
 * \ingroup mobility
 *
 * \brief Mobility model for which the current position does not change once it has been set and until it is set again explicitely to a new value.
 */
class ConstantPositionMobilityModel : public MobilityModel 
{
public:
  /**
   * Register this type with the TypeId system.
   * \return the object TypeId
   */
  static TypeId GetTypeId (void);
  /**
   * Create a position located at coordinates (0,0,0)
   */
  ConstantPositionMobilityModel ();
  virtual ~ConstantPositionMobilityModel ();

private:
  virtual Vector DoGetPosition (void) const;
  virtual void DoSetPosition (const Vector &position);
  virtual Vector DoGetVelocity (void) const;

  Vector m_position; //!< the constant position
};

} // namespace ns3

#endif /* CONSTANT_POSITION_MOBILITY_MODEL_H */