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hyperrogue/rogueviz/dhrg/dhrg.h

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#ifndef _DHRG_H_
#define _DHRG_H_
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#define DHRGVER "7.1"
#include "../rogueviz.h"
#define LONG_BRACKETS
namespace dhrg {
using namespace hr;
typedef long long ll;
#ifndef BOXSIZE
static const int BOXSIZE = 32;
#endif
static const int MAXDIST = (2*BOXSIZE);
static const int SETS = 4;
struct segment;
inline cell *croot() { return currentmap->gamestart(); }
extern int M;
extern vector<struct mycell*> vertices;
extern vector<ld> disttable0, disttable1;
void memoryInfo();
void cellcoords();
void origcoords();
void build_disttable();
void dhrg_init();
bool dhrg_animate(int sym, int uni);
/* implemented in loglik.cpp: */
/* for logistic regression */
struct logistic {
ld R, T;
ld yes(ld d) { return 1/(1 + exp((d-R) / 2 / T)); }
ld no(ld d) { return 1/(1 + exp(-(d-R) / 2 / T)); }
ld lyes(ld d) { return log(yes(d)); }
ld lno(ld d) { return log(no(d)); }
logistic() {}
logistic(ld _R, ld _T) : R(_R), T(_T) {}
void setRT(ld _R, ld _T) { R = _R; T = _T; }
};
extern ld llcont_approx_prec;
extern vector<array<ll, 2>> disttable_approx;
using logisticfun = std::function<ld(logistic&)>;
extern logistic current_logistic;
ld loglik_cont_approx(logistic& l = current_logistic);
void fast_loglik_cont(logistic& l, const logisticfun& f, const char *name, ld start, ld eps);
/* greedy routing */
struct iddata {
ld tot, suc, routedist, bestdist;
iddata() { tot = suc = routedist = bestdist = 0; }
};
using neighborhoodfun = std::function<vector<int> (int)>;
using distfun = std::function<ld(int a, int b)>;
void prepare_pairs(int N, const neighborhoodfun& nei);
void greedy_routing(iddata& d, const distfun& distance_function);
}
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#endif