fix client's player entity ID

[blank.git] / src / model / geometry.hpp

diff --git a/src/model/geometry.hpp b/src/model/geometry.hpp
index f1b3762d2905ff650ae44c435bd2b4cfdf1cfbaa..fd2c42bb8c8fa7f643f7fcae8697aeac26496dd2 100644 (file)
--- a/src/model/geometry.hpp
+++ b/src/model/geometry.hpp
@@ -13,6 +13,9 @@ constexpr float PI_0p5 = PI * 0.5f;
 constexpr float PI_1p5 = PI * 1.5f;
 constexpr float PI_2p0 = PI * 2.0f;
 
+constexpr float PI_inv = 1.0f / PI;
+constexpr float PI_0p5_inv = 1.0f / PI_0p5;
+
 constexpr float DEG_RAD_FACTOR = PI / 180.0f;
 constexpr float RAD_DEG_FACTOR = 180.0f / PI;
 
@@ -25,6 +28,19 @@ constexpr float rad2deg(float r) {
 }
 
 
+template<class T>
+T manhattan_distance(const glm::tvec3<T> &a, const glm::tvec3<T> &b) {
+       glm::tvec3<T> diff(abs(a - b));
+       return diff.x + diff.y + diff.z;
+}
+
+template<class T>
+T manhattan_radius(const glm::tvec3<T> &v) {
+       glm::tvec3<T> a(abs(v));
+       return std::max(a.x, std::max(a.y, a.z));
+}
+
+
 struct AABB {
        glm::vec3 min;
        glm::vec3 max;