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#ifndef WOLFF_STATE_H
#define WOLFF_STATE_H
#include <functional>
#include <vector>
#include "types.h"
#include "graph.hpp"
template <class R_t, class X_t>
class wolff_system {
public:
D_t D; // dimension
L_t L; // linear size
v_t nv; // number of vertices
v_t ne; // number of edges
graph_t G; // the graph defining the lattice with ghost
double T; // the temperature
std::vector<X_t> s; // the state of the ordinary spins
#ifndef WOLFF_NO_FIELD
R_t s0; // the current state of the ghost site
#endif
#ifdef WOLFF_BOND_DEPENDENCE
std::function <double(v_t, const X_t&, v_t, const X_t&)> Z; // coupling between sites
#else
std::function <double(const X_t&, const X_t&)> Z; // coupling between sites
#endif
#ifndef WOLFF_NO_FIELD
#ifdef WOLFF_SITE_DEPENDENCE
std::function <double(v_t, const X_t&)> B; // coupling with the external field
#else
std::function <double(const X_t&)> B; // coupling with the external field
#endif
#endif
wolff_system(D_t D, L_t L, double T,
#ifdef WOLFF_BOND_DEPENDENCE
std::function <double(v_t, const X_t&, v_t, const X_t&)> Z
#else
std::function <double(const X_t&, const X_t&)> Z
#endif
#ifndef WOLFF_NO_FIELD
#ifdef WOLFF_SITE_DEPENDENCE
, std::function <double(v_t, const X_t&)> B
#else
, std::function <double(const X_t&)> B
#endif
#endif
, lattice_t lat = SQUARE_LATTICE) : D(D), L(L), G(D, L, lat), T(T), Z(Z)
#ifndef WOLFF_NO_FIELD
, s0(), B(B)
#endif
{
nv = G.nv;
ne = G.ne;
s.resize(nv);
#ifndef WOLFF_NO_FIELD
G.add_ext();
#endif
#ifdef WOLFF_FINITE_STATES
finite_states_init(*this);
#endif
}
};
#endif
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