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#ifndef TH_HH
#define TH_HH
#include <cassert>
#include <iostream>
#include <vector>
#include "cctk.h"
#include "defs.hh"
#include "gh.hh"
using namespace std;
// Forward declaration
class th;
// Output
ostream& operator<< (ostream& os, const th& t);
// The time hierarchy (information about the current time)
class th {
public: // should be readonly
// Fields
gh& h; // hierarchy
private:
const vector<int> reffacts;
CCTK_REAL delta; // time step
vector<vector<CCTK_REAL> > times; // current times [ml][rl]
vector<vector<CCTK_REAL> > deltas; // time steps [ml][rl]
public:
// Constructors
th (gh& h, const vector<int> & reffacts, const CCTK_REAL basedelta);
// Destructors
~th ();
// Modifiers
void regrid ();
// Time management
CCTK_REAL get_time (const int rl, const int ml) const
{
assert (rl>=0 and rl<h.reflevels());
assert (ml>=0 and ml<h.mglevels());
return times.AT(ml).AT(rl);
}
void set_time (const int rl, const int ml, const CCTK_REAL t)
{
assert (rl>=0 and rl<h.reflevels());
assert (ml>=0 and ml<h.mglevels());
times.AT(ml).AT(rl) = t;
}
void advance_time (const int rl, const int ml)
{
set_time(rl,ml, get_time(rl,ml) + get_delta(rl,ml));
}
CCTK_REAL get_delta (const int rl, const int ml) const
{
assert (rl>=0 and rl<h.reflevels());
assert (ml>=0 and ml<h.mglevels());
return deltas.AT(ml).AT(rl);
}
void set_delta (const int rl, const int ml, const CCTK_REAL dt)
{
assert (rl>=0 and rl<h.reflevels());
assert (ml>=0 and ml<h.mglevels());
deltas.AT(ml).AT(rl) = dt;
}
CCTK_REAL time (const int tl, const int rl, const int ml) const
{
assert (rl>=0 and rl<h.reflevels());
assert (ml>=0 and ml<h.mglevels());
return get_time(rl, ml) - tl * get_delta(rl, ml);
}
// Output
size_t memory () const;
void output (ostream& os) const;
};
inline size_t memoryof (th const & t)
{
return t.memory ();
}
inline ostream& operator<< (ostream& os, const th& t) {
t.output(os);
return os;
}
#endif // TH_HH
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