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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.
*/
#ifndef INCLUDED_SIMULATION_H
#define INCLUDED_SIMULATION_H
#include <string>
#include <cmath>
#include <vector>
#include <iostream>
class point {
double d_x, d_y;
public:
point(double x = 0, double y = 0) : d_x(x), d_y(y) {}
double x() const { return d_x; }
double y() const { return d_y; }
void set_x(double x) { d_x = x; }
void set_y(double y) { d_y = y; }
static point
add(const point &p1, const point &p2)
{
return point(p1.x() + p2.x(),
p1.y() + p2.y());
}
static point
sub(const point &p1, const point &p2)
{
return point(p1.x() - p2.x(), p1.y() - p2.y());
}
static double
distance(const point &p1, const point &p2)
{
point d = point::sub(p1, p2);
return std::sqrt(d.x()*d.x() + d.y()*d.y());
}
};
class dyn_object {
point d_pos;
point d_vel;
std::string d_name;
public:
dyn_object(point pos=point(0,0), point vel=point(0,0), const std::string name="")
: d_pos(pos), d_vel(vel), d_name(name) {}
virtual ~dyn_object() {}
point pos() const { return d_pos; }
point vel() const { return d_vel; }
std::string name() const { return d_name; }
void set_pos(point pos) { d_pos = pos; }
void set_vel(point vel) { d_vel = vel; }
virtual bool update(double delta_t);
static double
distance(const dyn_object &o1, const dyn_object &o2)
{
return point::distance(o1.pos(), o2.pos());
}
};
class simulation {
double d_timestep;
double d_now;
protected:
std::vector<dyn_object *> d_obj;
public:
simulation(double timestep = 1.0, double now = 0.0)
: d_timestep(timestep), d_now(now) {}
virtual ~simulation();
virtual bool update();
virtual bool run(long long nsteps);
void add_object(dyn_object *obj);
double now() const { return d_now; }
double timestep() const { return d_timestep; }
};
std::ostream& operator<<(std::ostream& out, const dyn_object& o);
std::ostream& operator<<(std::ostream& out, const point& p);
#endif /* INCLUDED_SIMULATION_H */
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