X-Git-Url: http://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fmodel%2Fgeometry.hpp;h=f9f87c4f9d14462f31af92b16247e5a6aad584e9;hb=3542823a1af7f5063d7cc8da84efa248eb889b8a;hp=df45fff2f2a2797d789b06b9bd2ad71feb3c6464;hpb=419e33e565bffbaf0416ed4a5f80e9c81f62a479;p=blank.git

diff --git a/src/model/geometry.hpp b/src/model/geometry.hpp
index df45fff..f9f87c4 100644
--- a/src/model/geometry.hpp
+++ b/src/model/geometry.hpp
@@ -13,6 +13,31 @@ constexpr float PI_0p5 = PI * 0.5f;
 constexpr float PI_1p5 = PI * 1.5f;
 constexpr float PI_2p0 = PI * 2.0f;
 
+constexpr float DEG_RAD_FACTOR = PI / 180.0f;
+constexpr float RAD_DEG_FACTOR = 180.0f / PI;
+
+constexpr float deg2rad(float d) {
+	return d * DEG_RAD_FACTOR;
+}
+
+constexpr float rad2deg(float r) {
+	return r * RAD_DEG_FACTOR;
+}
+
+
+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;