#ifndef HOLESOME_TRACKING_VIEW_H
#define HOLESOME_TRACKING_VIEW_H


#include "../game_object.h"
#include "../game.h"
#include "ITrackable.h"
#include "../../primitives/circle_object.h"

class TrackingView : public GameObject
{
public:
    explicit TrackingView(float freeMoveRadius = 150,
                          float dynamicFollowRadius = 300);

    ~TrackingView();


    void draw(sf::RenderWindow *window) const override;
    void lateUpdate(Game *game) override;

    void addTrackable(ITrackable *trackable);

    sf::Vector2f getSize() const;
    sf::Vector2f getCenter() const;

private:
    sf::View *view{};
    bool hasViewChanged{};
    float freeMoveRadius;
    float dynamicFollowRadius;
    std::vector<ITrackable *> trackables;

    CircleObject *marker;

    void initializeView(Game *game);

    void setSize(sf::Vector2u windowSize);

    void followTarget();

    bool isTargetInArea(sf::Vector2f areaSize);

    sf::Vector2f getClosestPositionInArea(sf::Vector2f areaSize) const;

    /// Calculates the hardDirection the target should be pulled back in.
    /// \return Normalized vector, pointing from center to target.
    sf::Vector2f getRubber() const;

    void performHardFollow();

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

    void performDynamicFollow();

    sf::Vector2f getCollectiveTrackingPoint() const;

    void processTrackableStates();
};


#endif //HOLESOME_TRACKING_VIEW_H