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/* -*- c++ -*- */
/*
* Copyright 2005 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio 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, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "simulation.h"
bool
dyn_object::update(double delta_t)
{
double new_x = pos().x() + delta_t * vel().x();
double new_y = pos().y() + delta_t * vel().y();
set_pos(point(new_x, new_y));
return true;
}
simulation::~simulation()
{
for (unsigned i = 0; i < d_obj.size(); i++){
delete d_obj[i];
d_obj[i] = 0;
}
}
bool
simulation::update()
{
bool ok = true;
for (unsigned i = 0; i < d_obj.size(); i++){
ok &= d_obj[i]->update(d_timestep);
}
d_now += d_timestep;
return ok;
}
bool
simulation::run(long long nsteps)
{
for (long long i = 0; i < nsteps; i++)
if (!update())
return false;
return true;
}
void
simulation::add_object(dyn_object *obj)
{
d_obj.push_back(obj);
}
// ----------------------------------------------------------------
std::ostream& operator<<(std::ostream& out, const dyn_object& o)
{
out << "<" << o.name()
<< " pos: " << o.pos()
<< " vel: " << o.vel()
<< ">";
return out;
}
std::ostream& operator<<(std::ostream& out, const point& p)
{
out << "(" << p.x() << ", " << p.y() << ")";
return out;
}
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