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/***************************************************************************
th.hh - Time Hierarchy
information about time levels
-------------------
begin : Sun Jun 11 2000
copyright : (C) 2000 by Erik Schnetter
email : schnetter@astro.psu.edu
$Header: /home/eschnett/C/carpet/Carpet/Carpet/CarpetLib/src/th.hh,v 1.8 2002/09/25 15:49:17 schnetter Exp $
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef TH_HH
#define TH_HH
#include <assert.h>
#include <iostream>
#include <vector>
#include "cctk.h"
#include "defs.hh"
#include "dggh.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
dimgeneric_gh *h; // hierarchy
private:
CCTK_REAL delta; // time step
vector<vector<CCTK_REAL> > times; // current times
vector<vector<CCTK_REAL> > deltas; // time steps
public:
// Constructors
th (dimgeneric_gh* h, const CCTK_REAL basedelta);
// Destructors
~th ();
// Modifiers
void recompose ();
// Time management
CCTK_REAL get_time (const int rl, const int ml) const {
assert (rl>=0 && rl<h->reflevels());
assert (ml>=0 && ml<h->mglevels(rl,0));
return times[rl][ml];
}
void set_time (const int rl, const int ml, const CCTK_REAL t) {
assert (rl>=0 && rl<h->reflevels());
assert (ml>=0 && ml<h->mglevels(rl,0));
times[rl][ml] = 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 && rl<h->reflevels());
assert (ml>=0 && ml<h->mglevels(rl,0));
return deltas[rl][ml];
}
void set_delta (const int rl, const int ml, const CCTK_REAL dt) {
assert (rl>=0 && rl<h->reflevels());
assert (ml>=0 && ml<h->mglevels(rl,0));
deltas[rl][ml] = dt;
}
CCTK_REAL time (const int tl, const int rl, const int ml) const {
assert (rl>=0 && rl<h->reflevels());
assert (ml>=0 && ml<h->mglevels(rl,0));
return get_time(rl, ml) + tl * get_delta(rl, ml);
}
// Output
void output (ostream& os) const;
};
inline ostream& operator<< (ostream& os, const th& t) {
t.output(os);
return os;
}
#endif // TH_HH
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