X-Git-Url: https://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fworld%2Fsim.cpp;h=8b4c2140c2ba96b672c9dd08ac7987223b52c9f9;hb=ed2711d42a7815657bf0653c25b8b9be8b7f1368;hp=abf2829498f20356115a128801279bf5c53eb10e;hpb=0453d6da05d4b29d953f00857d743310d9344ce0;p=blobs.git

diff --git a/src/world/sim.cpp b/src/world/sim.cpp
index abf2829..8b4c214 100644
--- a/src/world/sim.cpp
+++ b/src/world/sim.cpp
@@ -1,22 +1,48 @@
 #include "Simulation.hpp"
 
 #include "Body.hpp"
+#include "Planet.hpp"
+#include "Sun.hpp"
 
 
 namespace blobs {
 namespace world {
 
 Simulation::Simulation(Body &r)
-: root(r) {
-	r.SetSimulation(*this);
+: root(r)
+, bodies()
+, planets()
+, suns()
+, time(0.0) {
+	AddBody(r);
 }
 
 Simulation::~Simulation() {
 }
 
 
+void Simulation::AddBody(Body &b) {
+	b.SetSimulation(*this);
+	bodies.insert(&b);
+}
+
+void Simulation::AddPlanet(Planet &p) {
+	AddBody(p);
+	planets.insert(&p);
+}
+
+void Simulation::AddSun(Sun &s) {
+	AddBody(s);
+	suns.insert(&s);
+}
+
 void Simulation::Tick() {
-	time += 0.01666666666666666666666666666666;
+	constexpr double dt = 0.01666666666666666666666666666666;
+	time += dt;
+	for (auto body : bodies) {
+		body->Rotation(body->Rotation() + dt * body->AngularMomentum() / body->Inertia());
+		body->Cache();
+	}
 }
 
 }