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#ifndef point_h
#define point_h
// point.h
// nono - programme du robot 2004. {{{
//
// Copyright (C) 2004 Nicolas Schodet
//
// Robot APB Team/Efrei 2004.
//        Web: http://assos.efrei.fr/robot/
//      Email: robot AT efrei DOT fr
//
// 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.
// 
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// }}}

#include <iostream>

/// Structure rep�sentant un point.
struct Point
{
    /// Coordonn�es.
    double x, y;
    /// Constructeur.
    Point (void) : x (0.0), y (0.0) { }
    Point (double x_, double y_) : x (x_), y (y_) { }
    //@{
    /// Op�rations.
    Point &operator+= (const Point &rhs);
    Point operator+ (const Point &rhs) const;
    Point &operator-= (const Point &rhs);
    Point operator- (const Point &rhs) const;
    Point &operator*= (const Point &rhs);
    Point operator* (const Point &rhs) const;
    Point &operator*= (double rhs);
    Point operator* (double rhs) const;
    //@}
};

/// Sort sur un ostream.
std::ostream &
operator<< (std::ostream &os, const Point &p);

// Inlines.

/// Op�rations.
inline Point &
Point::operator+= (const Point &rhs)
{
    x += rhs.x;
    y += rhs.y;
    return *this;
}

inline Point
Point::operator+ (const Point &rhs) const
{
    Point p (*this);
    p += rhs;
    return p;
}

inline Point &
Point::operator-= (const Point &rhs)
{
    x -= rhs.x;
    y -= rhs.y;
    return *this;
}

inline Point
Point::operator- (const Point &rhs) const
{
    Point p (*this);
    p -= rhs;
    return p;
}

inline Point &
Point::operator*= (const Point &rhs)
{
    x *= rhs.x;
    y *= rhs.y;
    return *this;
}

inline Point
Point::operator* (const Point &rhs) const
{
    Point p (*this);
    p *= rhs;
    return p;
}

inline Point &
Point::operator*= (double rhs)
{
    x *= rhs;
    y *= rhs;
    return *this;
}

inline Point
Point::operator* (double rhs) const
{
    Point p (*this);
    p *= rhs;
    return p;
}

/// Sort sur un ostream.
inline std::ostream &
operator<< (std::ostream &os, const Point &p)
{
    os << p.x << ' ' << p.y;
    return os;
}

#endif // point_h