#ifndef ENVIRONMENT_DATA_ENTITY_H
#define ENVIRONMENT_DATA_ENTITY_H

#include "Segment.h"

namespace environment {
namespace data {

  class Entity
  {
  public : bool      present;
  public : Segment * segment;


  public : Entity (bool present);
  public : Entity (bool present, Segment * segment);
  public : friend std::ostream& operator<< (std::ostream& output, Entity & x);
  };

};
};
#endif