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#include "shared/math/coords.hh"
namespace shared {
namespace math {
bool coords::is_inside_draw(const coords& a, const coords& b,
const std::int32_t draw_distance) noexcept {
const auto x2 = (a.x - b.x) * (a.x - b.x);
const auto z2 = (a.z - b.z) * (a.z - b.z);
const auto dd2 = draw_distance * draw_distance;
return (x2 < dd2 - z2) && (z2 < dd2 - x2);
}
coords coords::operator+(const coords& c) const noexcept {
auto ret = *this;
ret.x += c.x;
ret.z += c.z;
return ret;
}
coords coords::operator-(const coords& c) const noexcept {
auto ret = *this;
ret.x -= c.x;
ret.z -= c.z;
return ret;
}
} // namespace math
} // namespace shared
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