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110 lines (90 loc) · 2.08 KB
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/* FortuneAlgorithm
* Copyright (C) 2018 Pierre Vigier
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Vector2.h"
// STL
#include <cmath>
Vector2::Vector2(double x, double y) : x(x), y(y)
{
}
// Unary operators
Vector2 Vector2::operator-() const
{
return Vector2(-x, -y);
}
Vector2& Vector2::operator+=(const Vector2& other)
{
x += other.x;
y += other.y;
return *this;
}
Vector2& Vector2::operator-=(const Vector2& other)
{
x -= other.x;
y -= other.y;
return *this;
}
Vector2& Vector2::operator*=(double t)
{
x *= t;
y *= t;
return *this;
}
// Other operations
Vector2 Vector2::getOrthogonal() const
{
return Vector2(-y, x);
}
double Vector2::dot(const Vector2& other) const
{
return x * other.x + y * other.y;
}
double Vector2::getNorm() const
{
return std::sqrt(x * x + y * y);
}
double Vector2::getDistance(const Vector2& other) const
{
return (*this - other).getNorm();
}
double Vector2::getDet(const Vector2& other) const
{
return x * other.y - y * other.x;
}
Vector2 operator+(Vector2 lhs, const Vector2& rhs)
{
lhs += rhs;
return lhs;
}
Vector2 operator-(Vector2 lhs, const Vector2& rhs)
{
lhs -= rhs;
return lhs;
}
Vector2 operator*(double t, Vector2 vec)
{
vec *= t;
return vec;
}
Vector2 operator*(Vector2 vec, double t)
{
return t * vec;
}
std::ostream& operator<<(std::ostream& os, const Vector2& vec)
{
os << "(" << vec.x << ", " << vec.y << ")";
return os;
}