/* -*-  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>

 */

#include <math.h>

#include "mobility-model.h"

#include "ns3/trace-source-accessor.h"

namespace ns3 {

TypeId 

MobilityModel::GetTypeId (void)

{

  static TypeId tid = TypeId ("ns3::MobilityModel")

    .SetParent<Object> ()

    .AddAttribute ("Position", "The current position of the mobility model.",

                   TypeId::ATTR_SET | TypeId::ATTR_GET,

                   VectorValue (Vector (0.0, 0.0, 0.0)),

                   MakeVectorAccessor (&MobilityModel::SetPosition,

                                        &MobilityModel::GetPosition),

                   MakeVectorChecker ())

    .AddAttribute ("Velocity", "The current velocity of the mobility model.",

                   TypeId::ATTR_GET,

                   VectorValue (Vector (0.0, 0.0, 0.0)), // ignored initial value.

                   MakeVectorAccessor (&MobilityModel::GetVelocity),

                   MakeVectorChecker ())

    .AddTraceSource ("CourseChange", 

                     "The value of the position and/or velocity vector changed",

                     MakeTraceSourceAccessor (&MobilityModel::m_courseChangeTrace))

    ;

  return tid;

}

MobilityModel::MobilityModel ()

{}

MobilityModel::~MobilityModel ()

{}

Vector

MobilityModel::GetPosition (void) const

{

  return DoGetPosition ();

}

Vector

MobilityModel::GetVelocity (void) const

{

  return DoGetVelocity ();

}

void 

MobilityModel::SetPosition (const Vector &position)

{

  DoSetPosition (position);

}

double 

MobilityModel::GetDistanceFrom (Ptr<const MobilityModel> other) const

{

  Vector oPosition = other->DoGetPosition ();

  Vector position = DoGetPosition ();

  return CalculateDistance (position, oPosition);

}

void

MobilityModel::NotifyCourseChange (void) const

{

  m_courseChangeTrace(this);

}

} // namespace ns3