action_G_Rectangle.h

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#ifndef ACTION_G_RECTANGLE_INCLUDED
#define ACTION_G_RECTANGLE_INCLUDED

#include "action.h"
#include "staples.h"
#include "shiftField_lex.h"

#include "bridgeIO.h"
using Bridge::vout;


//- parameters class
class Parameters_Action_G_Rectangle : virtual public Parameters
{
 public:
  Parameters_Action_G_Rectangle();
};
//- end

class Action_G_Rectangle : public Action
{
 public:
  static const std::string class_name;

 private:
  double      m_beta;
  double      m_c_plaq;
  double      m_c_rect;
  std::string m_label;

  Field_G        *m_U;
  Staples        m_staple;
  ShiftField_lex m_shift;

  RandomNumbers *m_rand;

 public:
  Action_G_Rectangle()
    : Action() {}

  ~Action_G_Rectangle() {}

  void set_parameters(const Parameters& params);
  void set_parameters(double beta, double c_plaq, double c_rect);

  void set_label(std::string label)
  {
    m_label = label;
    vout.detailed(m_vl, "  label: %s\n", m_label.c_str());
  }

  std::string get_label()
  {
    return m_label;
  }

  void set_config(Field *U)
  {
    m_U = (Field_G *)U;
  }

  double langevin(RandomNumbers *);

  double calcH();

  void force(Field&);
};
#endif