Class Camera

src/visualization/components/camera.h:34–106

namespace oid {

class Camera final : public Component {
  public:
    Camera(const std::shared_ptr<GameObject>& game_object,
           const std::shared_ptr<RenderCanvas>& gl_canvas);

    ~Camera() noexcept override;

    Camera(const Camera& cam);

    Camera& operator=(const Camera& cam);

    static constexpr float zoom_factor{1.1f};

    [[nodiscard]] mat4& projection() noexcept {
        return projection_;
    }

    [[nodiscard]] const mat4& projection() const noexcept {
        return projection_;
    }

    void update() override;

    void draw(const mat4&, const mat4&) override {
        // Do nothing
    }

    [[nodiscard]] bool post_buffer_update() override;

    [[nodiscard]] bool post_initialize() override;

    EventProcessCode key_press_event(int key_code) override;

    void window_resized(int w, int h);

    void scroll_callback(float delta);

    void recenter_camera();

    void mouse_drag_event(int mouse_x, int mouse_y) override;

    [[nodiscard]] float compute_zoom() const;

    void move_to(float x, float y);

    [[nodiscard]] vec4 get_position() const;

    [[nodiscard]] float get_zoom_power() const;

    void set_zoom_power(float zoom_power);

  private:
    void update_object_pose() const;

    [[nodiscard]] std::pair<float, float> get_buffer_initial_dimensions() const;

    void scale_at(const vec4& center_ndc, float delta);