normalization.h

#pragma once
 
#include "pixelbullet/math/validation.h"
 
#include <glm/glm.hpp>
 
#include <concepts>
 
namespace pixelbullet::math
{
template <glm::length_t Length, std::floating_point T, glm::qualifier Qualifier>
[[nodiscard]] inline glm::vec<Length, T, Qualifier>
normalized_or(const glm::vec<Length, T, Qualifier>& value, const glm::vec<Length, T, Qualifier>& fallback, const T minimum_length) noexcept
{
    const T length = glm::length(value);
    const T effective_minimum_length = minimum_length > T{ 0 } ? minimum_length : T{ 0 };
    return is_finite(length) && length > effective_minimum_length ? value / length : fallback;
}
} // namespace pixelbullet::math