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#include <wolff/measurement.hpp>
using namespace wolff;
template <class R_t, class X_t>
class simple_measurement : public measurement<R_t, X_t> {
private:
N_t n;
double E;
typename X_t::M_t M;
v_t C;
double totalE;
typename X_t::F_t totalM;
double totalC;
public:
simple_measurement(const system<R_t, X_t>& S) {
n = 0;
M = S.nv * S.s[0];
E = 0;
#ifdef WOLFF_BOND_DEPENDENCE
for (v_t i = 0; i < S.nv; i++) {
for (v_t j : S.G.adjacency[i]) {
E -= 0.5 * S.Z(i, S.s[i], j, S.s[j]);
}
}
#else
E -= S.ne * S.Z(S.s[0], S.s[0]);
#endif
#ifndef WOLFF_NO_FIELD
#ifdef WOLFF_SITE_DEPENDENCE
for (v_t i = 0; i < S.nv; i++) {
E -= S.B(i, S.s[i]);
}
#else
E -= S.nv * S.B(S.s[0]);
#endif
#endif
totalE = 0;
totalM = 0.0 * (S.s[0]);
totalC = 0;
}
void pre_cluster(N_t, N_t, const system<R_t, X_t>&, v_t, const R_t&) {
C = 0;
}
void plain_bond_visited(const system<R_t, X_t>&, v_t, const X_t&, v_t, double dE) {
E += dE;
}
void ghost_bond_visited(const system<R_t, X_t>&, v_t, const X_t& s_old, const X_t& s_new, double dE) {
E += dE;
M += s_new - s_old;
}
void plain_site_transformed(const system<R_t, X_t>& S, v_t i, const X_t& si_new) {
C++;
#ifdef WOLFF_NO_FIELD
M += si_new - S.s[i];
#endif
}
void ghost_site_transformed(const system<R_t, X_t>&, const R_t&) {}
void post_cluster(N_t, N_t, const system<R_t, X_t>&) {
totalE += E;
totalM += M;
totalC += C;
n++;
}
double avgE() {
return totalE / n;
}
typename X_t::F_t avgM() {
return totalM / n;
}
double avgC() {
return totalC / n;
}
};
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