X-Git-Url: https://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fworld%2FBody.hpp;h=1e32e6d020a41d71392d4f7ce68865aba6d96aaf;hb=HEAD;hp=d90806584b0e43d37f1202d0dcddce7e8afe3d23;hpb=3989da924c4e33c52f500aead5ae62bb40294781;p=blobs.git

diff --git a/src/world/Body.hpp b/src/world/Body.hpp
index d908065..1e32e6d 100644
--- a/src/world/Body.hpp
+++ b/src/world/Body.hpp
@@ -61,9 +61,6 @@ public:
 	Orbit &GetOrbit() noexcept { return orbit; }
 	const Orbit &GetOrbit() const noexcept { return orbit; }
 
-	const glm::dvec2 &SurfaceTilt() const noexcept { return surface_tilt; }
-	void SurfaceTilt(const glm::dvec2 &t) noexcept { surface_tilt = t; }
-
 	const glm::dvec2 &AxialTilt() const noexcept { return axis_tilt; }
 	void AxialTilt(const glm::dvec2 &t) noexcept { axis_tilt = t; }
 
@@ -78,6 +75,10 @@ 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() }; }
@@ -119,7 +120,6 @@ private:
 	double mass;
 	double radius;
 	Orbit orbit;
-	glm::dvec2 surface_tilt;
 	glm::dvec2 axis_tilt;
 	double rotation;
 	double angular;