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/*
math/vector2f.cc
This file is part of the Osirion project and is distributed under
the terms of the GNU General Public License version 2
*/
#include <cstring>
#include <cmath>
#include "math/vector2f.h"
namespace math
{
Vector2f::Vector2f()
{
clear();
}
Vector2f::Vector2f(const Vector2f &other)
{
assign(other);
}
Vector2f::Vector2f(const float x, const float y)
{
assign(x, y);
}
void Vector2f::clear()
{
memset(coord, 0, sizeof(coord));
}
void Vector2f::assign(const Vector2f &other)
{
memcpy(coord, other.coord, sizeof(coord));
}
void Vector2f::assign(const float x, const float y)
{
coord[0] = x;
coord[1] = y;
}
Vector2f &Vector2f::operator=(const Vector2f &other)
{
assign(other);
return (*this);
}
Vector2f &Vector2f::operator+=(const Vector2f &other)
{
coord[0] += other.coord[0];
coord[1] += other.coord[1];
return (*this);
}
Vector2f &Vector2f::operator-=(const Vector2f &other)
{
coord[0] -= other.coord[0];
coord[1] -= other.coord[1];
return (*this);
}
float distance(const Vector2f& first, const Vector2f& second)
{
float r = 0;
for (int i = 0; i < 2; i++)
r += (first[i] - second[i]) * (first[i] - second[i]);
return (sqrtf(r));
}
float distancesquared(const Vector2f& first, const Vector2f& second)
{
float r = 0;
for (int i = 0; i < 2; i++)
r += (first[i] - second[i]) * (first[i] - second[i]);
return (r);
}
}
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