Resolved that annoying gravity bug and added trajectories, a grid, keyboard navigation and logarithimic scale

CelestialBody.h

@@ -7,22 +7,27 @@
 #pragma once
 #include <glm/glm.hpp>
 #include <string>
+#include <vector>
 
 class CelestialBody {
 public:
-    CelestialBody(float mass, const glm::vec3& position, const glm::vec3& velocity);
+    CelestialBody(double mass, const glm::dvec3& position, const glm::dvec3& velocity);
 
-    void update(float dt);
-    void applyForce(const glm::vec3& force);
+    void update(double dt);
+    void applyForce(const glm::dvec3& force);
 
-    float getMass() const { return mass; }
-    glm::vec3 getPosition() const { return position; }
-    glm::vec3 getVelocity() const { return velocity; }
+    [[nodiscard]] double getMass() const { return mass; }
+    [[nodiscard]] glm::dvec3 getPosition() const { return position; }
+    [[nodiscard]] glm::dvec3 getVelocity() const { return velocity; }
+    void addToTrajectory(const glm::dvec3& position);
+    const std::vector<glm::dvec3>& getTrajectory() const { return trajectory; }
 
 private:
-    float mass;
-    glm::vec3 position;
-    glm::vec3 velocity;
-    glm::vec3 acceleration;
+    double mass;
+    glm::dvec3 position;
+    glm::dvec3 velocity;
+    glm::dvec3 acceleration;
+    std::vector<glm::dvec3> trajectory;
+    static const size_t MAX_TRAJECTORY_POINTS = 1000;
 };
 #endif //GRAVITY_CELESTIALBODY_H