text: //
  // Author: Marcin Kosiba
  //
  // This program 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 2
  // of the License, or (at your option) any later version.
  //
  // 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, see <http://www.gnu.org/licenses/>.
  //
  
  #ifndef __INET_GAUSSMARKOVMOBILITY_H
  #define __INET_GAUSSMARKOVMOBILITY_H
  
  #include "inet/common/INETDefs.h"
  
  #include "inet/mobility/common/LineSegmentsMobilityBase.h"
  
  namespace inet {
  
  /**
   * @brief Gauss Markov movement model. See NED file for more info.
   *
   * @author Marcin Kosiba
   */
  class INET_API GaussMarkovMobility : public LineSegmentsMobilityBase
  {
    protected:
      double speed;    ///< speed of the host
      double angle;    ///< angle of linear motion
      double alpha;    ///< alpha parameter
      int margin;    ///< margin at which the host gets repelled from the border
      double speedMean;    ///< speed mean
      double angleMean;    ///< angle mean
      double variance;    ///< variance
  
    protected:
      virtual int numInitStages() const { return NUM_INIT_STAGES; }
  
      /** @brief Initializes mobility model parameters.*/
      virtual void initialize(int stage);
  
      /** @brief If the host is too close to the border it is repelled */
      void preventBorderHugging();
  
      /** @brief Move the host*/
      virtual void move();
  
      /** @brief Calculate a new target position to move to. */
      virtual void setTargetPosition();
  
    public:
      virtual double getMaxSpeed() const { return speed; }
      GaussMarkovMobility();
  };
  
  } // namespace inet
  
  #endif // ifndef __INET_GAUSSMARKOVMOBILITY_H
  
  