vec2i.h

Go to the documentation of this file.

//       _________ __                 __
//      /   _____//  |_____________ _/  |______     ____  __ __  ______
//      \_____  \\   __\_  __ \__  \\   __\__  \   / ___\|  |  \/  ___/
//      /        \|  |  |  | \// __ \|  |  / __ \_/ /_/  >  |  /\___ |
//     /_______  /|__|  |__|  (____  /__| (____  /\___  /|____//____  >
//             \/                  \/          \//_____/            \/
//  ______________________                           ______________________
//                        T H E   W A R   B E G I N S
//         Stratagus - A free fantasy real time strategy game engine
//
//
//      (c) Copyright 2010 by Joris Dauphin
//
//      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; only version 2 of the License.
//
//      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.
//
 
#ifndef VEC2I_H
#define VEC2I_H
 
 
template <typename T>
class Vec2T
{
public:
        Vec2T() : x(0), y(0) {}
        Vec2T(T x, T y) : x(x), y(y) {}
public:
        T x;
        T y;
};
 
 
template <typename T>
inline bool operator == (const Vec2T<T> &lhs, const Vec2T<T> &rhs)
{
        return lhs.x == rhs.x && lhs.y == rhs.y;
}
 
template <typename T>
inline bool operator != (const Vec2T<T> &lhs, const Vec2T<T> &rhs)
{
        return !(lhs == rhs);
}
 
template <typename T>
inline bool operator < (const Vec2T<T> &lhs, const Vec2T<T> &rhs)
{
        return lhs.x < rhs.x && lhs.y < rhs.y;
}
 
template <typename T>
inline bool operator > (const Vec2T<T> &lhs, const Vec2T<T> &rhs)
{
        return lhs.x > rhs.x && lhs.y > rhs.y;
}
 
template <typename T>
inline const Vec2T<T> &operator += (Vec2T<T> &lhs, const Vec2T<T> &rhs)
{
        lhs.x += rhs.x;
        lhs.y += rhs.y;
        return lhs;
}
 
template <typename T>
inline const Vec2T<T> &operator -= (Vec2T<T> &lhs, const Vec2T<T> &rhs)
{
        lhs.x -= rhs.x;
        lhs.y -= rhs.y;
        return lhs;
}
 
template <typename T>
inline const Vec2T<T> &operator *= (Vec2T<T> &lhs, int rhs)
{
        lhs.x *= rhs;
        lhs.y *= rhs;
        return lhs;
}
 
template <typename T>
inline const Vec2T<T> &operator /= (Vec2T<T> &lhs, int rhs)
{
        lhs.x /= rhs;
        lhs.y /= rhs;
        return lhs;
}
 
template <typename T>
inline Vec2T<T> operator + (const Vec2T<T> &lhs, const Vec2T<T> &rhs)
{
        Vec2T<T> res(lhs);
 
        res += rhs;
        return res;
}
 
template <typename T>
inline Vec2T<T> operator - (const Vec2T<T> &lhs, const Vec2T<T> &rhs)
{
        Vec2T<T> res(lhs);
 
        res -= rhs;
        return res;
}
 
template <typename T>
inline Vec2T<T> operator * (const Vec2T<T> &lhs, int rhs)
{
        Vec2T<T> res(lhs);
 
        res *= rhs;
        return res;
}
 
template <typename T>
inline Vec2T<T> operator * (int lhs, const Vec2T<T> &rhs)
{
        Vec2T<T> res(rhs);
 
        res *= lhs;
        return res;
}
 
template <typename T>
inline Vec2T<T> operator / (const Vec2T<T> &lhs, int rhs)
{
        Vec2T<T> res(lhs);
 
        res /= rhs;
        return res;
}
 
template <typename T>
inline int SquareDistance(const Vec2T<T> &pos1, const Vec2T<T> &pos2)
{
        const Vec2T<T> diff = pos2 - pos1;
 
        return diff.x * diff.x + diff.y * diff.y;
}
 
template <typename T>
inline int Distance(const Vec2T<T> &pos1, const Vec2T<T> &pos2)
{
        return isqrt(SquareDistance(pos1, pos2));
}
 
typedef Vec2T<short int> Vec2i;
typedef Vec2T<int> PixelPos;
typedef Vec2T<int> PixelDiff;
typedef Vec2T<int> PixelSize;
typedef Vec2T<double> PixelPrecise;
 
 
#endif // !VEC2I_H