camera.h

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#pragma once
#include "node.h"
 
class Camera2D final : public Node2D {
public:
    Camera2D();
    explicit Camera2D(const std::string& name) : Node2D(name) {}
 
 
    void set_offset(const glm::vec2& offset);
 
    [[nodiscard]] glm::vec2 get_offset() const;
 
    void set_zoom(const glm::vec2& zoom);
 
    [[nodiscard]] glm::vec2 get_zoom() const;
 
    void set_viewport(int width, int height);
 
    [[nodiscard]] glm::vec2 get_viewport() const;
 
    void follow(Node2D* target);
 
    void process(double dt) override;
 
    [[nodiscard]] glm::mat4 get_view_matrix() const;
 
private:
    glm::vec2 _offset = {0.f, 0.f};
    glm::vec2 _zoom = {1.f, 1.f};
    glm::vec2 _viewport_size = {0.f, 0.f};
    glm::mat4 _view_matrix = glm::mat4(1.f);
    Node2D* _follow_target = nullptr;
};