holesome/src/game/camera/tracking_view.h

#ifndef HOLESOME_TRACKING_VIEW_H
#define HOLESOME_TRACKING_VIEW_H


#include "../game_object.h"
#include "ITrackable.h"
#include "../../primitives/circle_object.h"
#include "tracking_area.h"
#include "tracking_view_options.hpp"

class CircleObject;

class TrackingView : public GameObject
{
public:
    explicit TrackingView(TrackingViewOptions options = TrackingViewOptions());

    ~TrackingView();


    void draw(sf::RenderWindow *window) override;

    void lateUpdate() override;

    void addTrackable(const std::shared_ptr<ITrackable>& trackable);

    sf::Vector2f getSize() const;

    sf::Vector2f getCenter() const;

private:
    sf::View *view{};
    bool hasViewChanged{};
    TrackingViewOptions options;
    std::vector<std::shared_ptr<ITrackable>> trackables;

    CircleObject *marker;

    void initializeView();

    void followTrackables();

    void moveCenter(sf::Vector2<float> delta);

    TrackingArea getTrackingArea() const;

    void processTrackableStates();

    void adjustSizeToTrackables();

    void setSize(sf::Vector2f newSize);

    sf::Vector2f applyPadding(sf::Vector2f viewSize) const;

    sf::Vector2f restrainToBounds(sf::Vector2f viewSize) const;

    float getRadius(float threshold) const;

    sf::Vector2f getWindowSize() const;
};


#endif //HOLESOME_TRACKING_VIEW_H