#include "vector2.hpp"

#include "util/hash.hpp"

Vector2::Value Vector2::get_x() const noexcept
{
	return _x;
}

void Vector2::set_x(Vector2::Value x) noexcept
{
	_x = x;
}

Vector2::Value Vector2::get_y() const noexcept
{
	return _y;
}

void Vector2::set_y(Vector2::Value y) noexcept
{
	_y = y;
}

Vector2 Vector2::to_direction(const Vector2 &direction,
							  Vector2::Value amount) const noexcept
{
	return *this + (direction * Vector2({.x = amount, .y = amount}));
}

const Vector2 &Vector2::operator+=(const Vector2 &vector2) noexcept
{
	_x += vector2._x;
	_y += vector2._y;

	return *this;
}

const Vector2 &Vector2::operator-=(const Vector2 &vector2) noexcept
{
	_x -= vector2._x;
	_y -= vector2._y;

	return *this;
}

Vector2 Vector2::operator+(const Vector2 &vector2) const noexcept
{
	auto new_vector2 = Vector2(*this);

	new_vector2._x += vector2._x;
	new_vector2._y += vector2._y;

	return new_vector2;
}

Vector2 Vector2::operator*(const Vector2 &vector2) const noexcept
{
	auto new_vector2 = Vector2(*this);

	new_vector2._x *= vector2._x;
	new_vector2._y *= vector2._y;

	return new_vector2;
}

bool Vector2::operator==(const Vector2 &vector2) const noexcept
{
	return _x == vector2._x && _y == vector2._y;
}

std::size_t Vector2Hasher::operator()(const Vector2 &vector2) const noexcept
{
	std::size_t result_hash = 0;

	hash_combine(result_hash, vector2.get_x());
	hash_combine(result_hash, vector2.get_y());

	return result_hash;
}