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/*
* Copyright (C) 2002-2004, 2006-2013 by the Widelands Development Team
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef WL_BASE_POINT_H
#define WL_BASE_POINT_H
#include <limits>
#include <stdint.h>
template <typename T> struct GenericPoint {
GenericPoint(const T& px, const T& py) : x(px), y(py) {
}
GenericPoint() : GenericPoint(T(0), T(0)) {
}
// Returns an invalid point.
static GenericPoint invalid() {
return GenericPoint(std::numeric_limits<T>::max(), std::numeric_limits<T>::max());
}
bool operator==(const GenericPoint& other) const {
return x == other.x && y == other.y;
}
bool operator!=(const GenericPoint& other) const {
return !(*this == other);
}
GenericPoint operator+(const GenericPoint& other) const {
return GenericPoint(x + other.x, y + other.y);
}
GenericPoint operator-() const {
return GenericPoint(-x, -y);
}
GenericPoint operator-(const GenericPoint& other) const {
return GenericPoint(x - other.x, y - other.y);
}
GenericPoint& operator+=(const GenericPoint& other) {
x += other.x;
y += other.y;
return *this;
}
GenericPoint& operator-=(const GenericPoint& other) {
x -= other.x;
y -= other.y;
return *this;
}
T x, y;
};
using Point = GenericPoint<int>;
using FloatPoint = GenericPoint<float>;
/// Returns the point in the middle between a and b (rounded to integer
/// values).
Point middle(const Point& a, const Point& b);
#endif // end of include guard: WL_BASE_POINT_H
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