mirror of
https://port.numenaute.org/aleajactaest/khanat-opennel-code.git
synced 2024-12-11 20:34:47 +00:00
136 lines
3.6 KiB
C++
136 lines
3.6 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
|
|
// Copyright (C) 2010 Winch Gate Property Limited
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as
|
|
// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
#ifndef NL_VECTOR_2D_H
|
|
#define NL_VECTOR_2D_H
|
|
|
|
#include "types_nl.h"
|
|
|
|
#include <cmath>
|
|
#include <string>
|
|
|
|
#include "stream.h"
|
|
#include "vector_2f.h"
|
|
|
|
namespace NLMISC
|
|
{
|
|
|
|
|
|
// ***************************************************************************
|
|
/**
|
|
* A 2D vector of double.
|
|
* \author Lionel Berenguier
|
|
* \author Nevrax France
|
|
* \date 2001
|
|
*/
|
|
class CVector2d
|
|
{
|
|
public:
|
|
|
|
public: // Attributes.
|
|
double x,y;
|
|
|
|
public: // Methods.
|
|
/// @name Object.
|
|
//@{
|
|
/// Constructor which does nothing.
|
|
CVector2d() {}
|
|
/// Constructor .
|
|
CVector2d(double _x, double _y) : x(_x), y(_y) {}
|
|
/// Copy Constructor.
|
|
CVector2d(const CVector2d &v) : x(v.x), y(v.y) {}
|
|
/// Constructor with a CVector2f.
|
|
CVector2d(const CVector2f &v) : x(v.x), y(v.y) {}
|
|
|
|
//@}
|
|
|
|
/// @name Base Maths.
|
|
//@{
|
|
CVector2d &operator+=(const CVector2d &v) {x+=v.x; y+=v.y; return *this;}
|
|
CVector2d &operator-=(const CVector2d &v) {x-=v.x; y-=v.y; return *this;}
|
|
CVector2d &operator*=(double f) {x*=f; y*=f; return *this;}
|
|
CVector2d &operator/=(double f) {x/=f; y/=f; return *this;}
|
|
CVector2d operator+(const CVector2d &v) const {return CVector2d(x+v.x, y+v.y);}
|
|
CVector2d operator-(const CVector2d &v) const {return CVector2d(x-v.x, y-v.y);}
|
|
CVector2d operator*(double f) const {return CVector2d(x*f, y*f);}
|
|
CVector2d operator/(double f) const {return CVector2d(x/f, y/f);}
|
|
CVector2d operator-() const {return CVector2d(-x, -y);}
|
|
//@}
|
|
|
|
/// @name Advanced Maths.
|
|
//@{
|
|
/// Dot product.
|
|
double operator*(const CVector2d &v) const {return x*v.x + y*v.y;}
|
|
/// Return the norm of the vector.
|
|
double norm() const {return (double)sqrt(sqrnorm());}
|
|
/// Return the square of the norm of the vector.
|
|
double sqrnorm() const {return x*x + y*y;}
|
|
/// Normalize the vector.
|
|
void normalize()
|
|
{
|
|
double f= norm();
|
|
if(f>0)
|
|
*this/=f;
|
|
}
|
|
/// Return the vector normalized.
|
|
CVector2d normed() const
|
|
{
|
|
CVector2d v= *this;
|
|
v.normalize();
|
|
return v;
|
|
}
|
|
//@}
|
|
|
|
/// @name Misc.
|
|
//@{
|
|
void set(double _x, double _y) {x= _x; y=_y;}
|
|
bool operator==(const CVector2d &v) const {return x==v.x && y==v.y;}
|
|
bool operator!=(const CVector2d &v) const {return !(*this==v);}
|
|
bool isNull() const {return x==0.0f && y==0.0f;}
|
|
/// Set all vector x/y/z as minimum of a/b x/y/z (respectively).
|
|
void minof(const CVector2d &a, const CVector2d &b)
|
|
{
|
|
x= std::min(a.x, b.x);
|
|
y= std::min(a.y, b.y);
|
|
}
|
|
/// Set all vector x/y/z as maximum of a/b x/y/z (respectively).
|
|
void maxof(const CVector2d &a, const CVector2d &b)
|
|
{
|
|
x= std::max(a.x, b.x);
|
|
y= std::max(a.y, b.y);
|
|
}
|
|
/// serial.
|
|
void serial(NLMISC::IStream &f) {f.serial(x,y);}
|
|
//@}
|
|
|
|
// friends.
|
|
friend CVector2d operator*(double f, const CVector2d &v0);
|
|
|
|
};
|
|
|
|
|
|
inline CVector2d operator*(double f, const CVector2d &v)
|
|
{
|
|
return v*f;
|
|
}
|
|
|
|
|
|
} // NLMISC
|
|
|
|
|
|
#endif // NL_VECTOR_2D_H
|
|
|
|
/* End of vector_2d.h */
|