light/modules/math/vec2.cppm

export module math.vec2;

import std;

namespace lt::math {

export template<typename T = float>
struct vec2_impl
{
	constexpr vec2_impl(): x(), y()
	{
	}

	constexpr explicit vec2_impl(T scalar): x(scalar), y(scalar)
	{
	}

	constexpr vec2_impl(T x, T y): x(x), y(y)
	{
	}

	[[nodiscard]] auto operator==(const vec2_impl<T> &other) const -> bool
	{
		return x == other.x && y == other.y;
	}

	[[nodiscard]] auto operator!=(const vec2_impl<T> &other) const -> bool
	{
		return !(*this == other);
	}

	[[nodiscard]] auto operator*(const vec2_impl<T> &other) const -> vec2_impl
	{
		return {
			x * other.x,
			y * other.y,
		};
	}

	[[nodiscard]] auto operator-(const vec2_impl<T> &other) const -> vec2_impl
	{
		return {
			x - other.x,
			y - other.y,
		};
	}

	[[nodiscard]] auto operator*(float scalar) const -> vec2_impl
	{
		return {
			x * scalar,
			y * scalar,
		};
	}

	T x; // NOLINT

	T y; // NOLINT
};


export using vec2 = vec2_impl<float>;

export using ivec2 = vec2_impl<std::int32_t>;

export using uvec2 = vec2_impl<std::uint32_t>;

} // namespace lt::math

export template<typename T>
struct std::formatter<lt::math::vec2_impl<T>>
{
	constexpr auto parse(std::format_parse_context &context)
	{
		return context.begin();
	}

	auto format(const lt::math::vec2_impl<T> &val, std::format_context &context) const
	{
		return std::format_to(context.out(), "{}, {}", val.x, val.y);
	}
};