Presence.h

// Copyright 2008 Michael Marsh, University of Maryland.
//
// This file is part of pydtn.
//
// pydtn is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// pydtn 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 pydtn.  If not, see <http://www.gnu.org/licenses/>.
//
// The views and conclusions contained in the software and documentation
// are those of the authors and should not be interpreted as representing
// official policies, either expressed or implied, of the University
// of Maryland.
//
// pydtn extends and embeds the Python interpreter, which is
// Copyright 2001-2006 Python Software Foundation, All Rights Reserved,
// and is released under the PSF License Agreement.
//
// RANLUX random number generation uses the Boost library,
// Copyright 1994-2006 by various authors (details in individual files),
// which is released under the Boost Software License, Version 1.0.

#ifndef __MOBILITY_PRESENCE_H__
#define __MOBILITY_PRESENCE_H__

#include "config.h"
#include "Position.h"
#include "simlpy/Time.h"

namespace Mobility
{

   class Presence
   {
      public :
         Presence( const Time& t, const Position& p, const Time& d ):
            m_time(t),
            m_position(p),
            m_duration(d)
         {}

         Presence( const Presence& p ) :
            m_time( p.m_time ),
            m_position( p.m_position ),
            m_duration( p.m_duration )
         {}

         void operator=( const Presence& p );

         const Time& time() const { return m_time; }
         const Position& position() const { return m_position; }
         const Time& duration() const { return m_duration; }

         bool operator==( const Presence& p ) const {
            return m_time == p.m_time;
         }
         bool operator<( const Presence& p ) const {
            return m_time < p.m_time;
         }
         bool operator>( const Presence& p ) const {
            return m_time > p.m_time;
         }
         bool operator<=( const Presence& p ) const {
            return m_time <= p.m_time;
         }
         bool operator>=( const Presence& p ) const {
            return m_time >= p.m_time;
         }

         bool operator==( const Time& t ) const { return m_time == t; }
         bool operator<( const Time& t ) const { return m_time < t; }
         bool operator>( const Time& t ) const { return m_time > t; }
         bool operator<=( const Time& t ) const { return m_time <= t; }
         bool operator>=( const Time& t ) const { return m_time >= t; }

         Presence towards( const Presence& p, const Time& t ) const;

      private :
         Time      m_time;
         Position  m_position;
         Time      m_duration;
   };

}
  
#endif // __MOBILITY_PRESENCE_H__

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