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#include <kurator/sim/Point.h>
#include <cmath>
namespace kurator
{
namespace sim
{
double
Point::magnitude() const
{
return std::sqrt(std::pow(x, 2) + std::pow(y, 2));
}
double
Point::distance(const Point& other) const
{
return std::sqrt(std::pow(other.x - x, 2) + std::pow(other.y - y, 2));
}
double
Point::angle() const
{
return std::atan2(y, x); // (+x, _) is 0
}
Point
Point::rotate(const double angle) const
{
return {
x * std::cos(angle) - y * std::sin(angle),
x * std::sin(angle) + y * std::cos(angle),
};
}
Point
Point::scale(const double _scale) const
{
return {x * _scale, y * _scale};
}
Point
Point::normalized() const
{
return scale(1.0 / magnitude());
}
Point
Point::operator-(const Point& other) const
{
return {x - other.x, y - other.y};
}
Point
Point::operator+(const Point& other) const
{
return {x + other.x, y + other.y};
}
} // namespace sim
} // namespace kurator
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