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#ifndef vector_hh
#define vector_hh
// vector.hh
// robert - programme du robot 2005. {{{
//
// Copyright (C) 2005 Nicolas Schodet
//
// 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.
//
// Contact :
//        Web: http://perso.efrei.fr/~schodet/
//      Email: <contact@ni.fr.eu.org>
// }}}
#include <cmath>

namespace geometry {

/// Vecteur 2d en coordon�es carth�siennes.
template<typename T>
struct VectorT
{
    T x, y;
    VectorT (void) { }
    VectorT (T x_, T y_) { x = x_; y = y_; }
    VectorT (T v) { x = v; y = v; }
    VectorT (const VectorT<T> &v) { x = v.x; y = v.y; }
    VectorT<T> &operator= (const VectorT<T> &v);
    VectorT<T> &operator+= (const VectorT<T> &v);
    VectorT<T> &operator-= (const VectorT<T> &v);
    VectorT<T> &operator*= (T scalar);
    VectorT<T> &operator/= (T scalar);
    VectorT<T> operator+ (const VectorT<T> &v) const;
    VectorT<T> operator- (const VectorT<T> &v) const;
    VectorT<T> operator* (T scalar) const;
    T operator* (const VectorT<T> &v) const;
    VectorT<T> operator/ (T scalar) const;
    VectorT<T> &normalize (void);
    VectorT<T> &rotate (void);
    VectorT<T> &rotate (T angle);
};

template<typename T>
VectorT<T>
operator* (T scalar, const VectorT<T> &v);

template<typename T>
std::ostream &operator<< (std::ostream &os, const VectorT<T> &v);

typedef VectorT<double> Vector;

} // namespace geometry

#include "vector.tcc"

#endif // vector_hh