X-Git-Url: http://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fworld%2Fworld.cpp;h=525222f284b77c9c6bc57cd3a40df77849be5fd8;hb=1c385fe716fda927843cdbb83805bc467f517f92;hp=02c142ac5af08f52ecd42114bc8b6019d556bcad;hpb=ffda75aa10f772b706c2466e96a2250c89f05120;p=blobs.git

diff --git a/src/world/world.cpp b/src/world/world.cpp
index 02c142a..525222f 100644
--- a/src/world/world.cpp
+++ b/src/world/world.cpp
@@ -115,6 +115,24 @@ double Body::RotationalPeriod() const noexcept {
 	}
 }
 
+double Body::DayLength() const noexcept {
+	if (!HasParent()) {
+		return RotationalPeriod();
+	}
+	double year = OrbitalPeriod();
+	double sidereal = RotationalPeriod();
+	double grade = (angular < 0.0 ? -1.0 : 1.0) * (std::abs(axis_tilt.x) > PI * 0.5 ? -1.0 : 1.0);
+	return std::abs((year * sidereal) / ( year + (grade * sidereal)));
+}
+
+double Body::SphereOfInfluence() const noexcept {
+	if (HasParent()) {
+		return orbit.SemiMajorAxis() * std::pow(Mass() / Parent().Mass(), 2.0 / 5.0);
+	} else {
+		return std::numeric_limits<double>::infinity();
+	}
+}
+
 glm::dmat4 Body::ToUniverse() const noexcept {
 	glm::dmat4 m(1.0);
 	const Body *b = this;
@@ -184,13 +202,13 @@ void Body::CheckCollision() noexcept {
 	collisions.clear();
 	auto end = Creatures().end();
 	for (auto i = Creatures().begin(); i != end; ++i) {
-		math::AABB i_box((*i)->CollisionBox());
+		math::AABB i_box((*i)->CollisionBounds());
 		glm::dmat4 i_mat((*i)->CollisionTransform());
 		for (auto j = (i + 1); j != end; ++j) {
 			glm::dvec3 diff((*i)->GetSituation().Position() - (*j)->GetSituation().Position());
 			double max_dist = ((*i)->Size() + (*j)->Size()) * 1.74;
 			if (glm::length2(diff) > max_dist * max_dist) continue;
-			math::AABB j_box((*j)->CollisionBox());
+			math::AABB j_box((*j)->CollisionBounds());
 			glm::dmat4 j_mat((*j)->CollisionTransform());
 			glm::dvec3 normal;
 			double depth;
@@ -200,11 +218,12 @@ void Body::CheckCollision() noexcept {
 		}
 	}
 	for (auto &c : collisions) {
+		c.A().OnCollide(c.B());
+		c.B().OnCollide(c.A());
 		c.A().GetSituation().Move(c.Normal() * (c.Depth() * -0.5));
 		c.B().GetSituation().Move(c.Normal() * (c.Depth() * 0.5));
 		c.A().GetSituation().Accelerate(c.Normal() * -glm::dot(c.Normal(), c.AVel()));
 		c.B().GetSituation().Accelerate(c.Normal() * -glm::dot(c.Normal(), c.BVel()));
-		// TODO: notify participants so they can be annoyed
 	}
 }
 
@@ -686,7 +705,9 @@ void GenerateTest(const Set<TileType> &tiles, Planet &p) noexcept {
 
 
 Sun::Sun()
-: Body() {
+: Body()
+, color(1.0)
+, luminosity(1.0) {
 }
 
 Sun::~Sun() {