X-Git-Url: http://git.localhorst.tv/?p=blobs.git;a=blobdiff_plain;f=src%2Fworld%2FBody.hpp;h=6f85efd97b4946db46f224ef143e9b91ea1ec1b5;hp=d90806584b0e43d37f1202d0dcddce7e8afe3d23;hb=1c385fe716fda927843cdbb83805bc467f517f92;hpb=7a0da3422f7c9b81ae529a7554f6d16e85f05e1d

diff --git a/src/world/Body.hpp b/src/world/Body.hpp
index d908065..6f85efd 100644
--- a/src/world/Body.hpp
+++ b/src/world/Body.hpp
@@ -78,6 +78,10 @@ public:
 	double GravitationalParameter() const noexcept;
 	double OrbitalPeriod() const noexcept;
 	double RotationalPeriod() const noexcept;
+	/// day length relative to parent, not neccessarily a sun
+	/// gives absolute value in seconds
+	/// returns sidereal day for parent-less bodies
+	double DayLength() const noexcept;
 	double SphereOfInfluence() const noexcept;
 
 	math::Sphere CollisionBounds() const noexcept { return math::Sphere{ glm::dvec3(0.0), Radius() }; }