Fix doxygen comment

src/scripting/sector.hpp

@@ -52,15 +52,15 @@ class Sector final : public GameObjectManager
   void set_gravity(float gravity);
 
   /**
- * Adds a game object to the game
- * 
- * @param class_name GameObject's class
- * @param name Name of the created object
- * @param posX X position inside the current sector
- * @param posY Y position inside the current sector
- * @param direction Direction 
- * @param data Additional data
- */
+   * Adds a MovingObject to the game.
+   * 
+   * @param string $class_name GameObject's class.
+   * @param string $name Name of the created object.
+   * @param int $posX X position inside the current sector.
+   * @param int $posY Y position inside the current sector.
+   * @param string $direction Direction.
+   * @param string $data Additional data.
+   */
 void add_object(const std::string& class_name, const std::string& name,
                 int posX, int posY, const std::string& direction,
                 const std::string& data);