From e4483eca01b48b943cd0461e24a74ae1a3139ed4 Mon Sep 17 00:00:00 2001 From: Nicolas James Date: Wed, 12 Feb 2025 21:57:46 +1100 Subject: Update to most recent version (old initial commit) --- src/shared/math/coords.cc | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 src/shared/math/coords.cc (limited to 'src/shared/math/coords.cc') diff --git a/src/shared/math/coords.cc b/src/shared/math/coords.cc new file mode 100644 index 0000000..37fb19a --- /dev/null +++ b/src/shared/math/coords.cc @@ -0,0 +1,30 @@ +#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 -- cgit v1.2.3