rename files based on their classes

include/orbit_camera.hpp

@@ -0,0 +1,31 @@
+#ifndef CAMERA_HPP_
+#define CAMERA_HPP_
+
+#include "config.hpp"
+
+#include <raylib.h>
+#include <raymath.h>
+
+class orbit_camera
+{
+public:
+    Vector3 position = Vector3Zero();
+    Vector3 target = Vector3Zero();
+    float distance = CAMERA_DISTANCE;
+    float fov = CAMERA_FOV;
+    CameraProjection projection = CAMERA_PERSPECTIVE;
+    float angle_x = 0.0;
+    float angle_y = 0.0;
+
+    Camera camera = Camera{Vector3(0, 0, -distance), target, Vector3(0, 1.0, 0), fov, projection};
+
+public:
+    auto rotate(Vector2 last_mouse, Vector2 mouse) -> void;
+
+    auto pan(Vector2 last_mouse, Vector2 mouse) -> void;
+
+    auto update(const Vector3& current_target, const Vector3& mass_center, bool lock,
+                bool mass_center_lock) -> void;
+};
+
+#endif