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#ifndef CORE_VECTORS_HH
#define CORE_VECTORS_HH 1
#pragma once
// cxvectors.hh - because NO ONE would POSSIBLY
// need integer-based distance calculations in a
// game about voxels. That would be INSANE! :D
namespace cxvectors
{
template<typename value_type>
constexpr static inline const value_type length2(const glm::vec<2, value_type> &vector);
template<typename value_type>
constexpr static inline const value_type length2(const glm::vec<3, value_type> &vector);
template<typename value_type>
constexpr static inline const value_type distance2(const glm::vec<2, value_type> &vector_a, const glm::vec<2, value_type> &vector_b);
template<typename value_type>
constexpr static inline const value_type distance2(const glm::vec<3, value_type> &vector_a, const glm::vec<3, value_type> &vector_b);
} // namespace cxvectors
template<typename value_type>
constexpr static inline const value_type cxvectors::length2(const glm::vec<2, value_type> &vector)
{
static_assert(std::is_arithmetic_v<value_type>);
return (vector.x * vector.x) + (vector.y * vector.y);
}
template<typename value_type>
constexpr static inline const value_type cxvectors::length2(const glm::vec<3, value_type> &vector)
{
static_assert(std::is_arithmetic_v<value_type>);
return (vector.x * vector.x) + (vector.y * vector.y) + (vector.z * vector.z);
}
template<typename value_type>
constexpr static inline const value_type cxvectors::distance2(const glm::vec<2, value_type> &vector_a, const glm::vec<2, value_type> &vector_b)
{
static_assert(std::is_arithmetic_v<value_type>);
return cxvectors::length2(vector_a - vector_b);
}
template<typename value_type>
constexpr static inline const value_type cxvectors::distance2(const glm::vec<3, value_type> &vector_a, const glm::vec<3, value_type> &vector_b)
{
static_assert(std::is_arithmetic_v<value_type>);
return cxvectors::length2(vector_a - vector_b);
}
#endif /* CORE_VECTORS_HH */
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