camera.h

#ifndef CAMERA_H
#define CAMERA_H

#include <memory>
#include <vector>
#include "external/json/json.h"
#include "base.h"
#include "window.h"
#include "entity.h"


struct CameraPan {
    std::string name;
    Vector2i destination;
    int speed;
};


class Camera {
public:
    Camera();
    ~Camera();
    void SetFocus(std::shared_ptr<Entity> obj);
    void Update();
    bool InCamera(Rectf box) const;
    void Move(Vector2f v);
    void Move(float deltaT);
    void Pan(std::string name);
    std::string Scene();
    void SetBox(Rectf box);
    Rectf Box() const;
    void SetSceneBox(Rectf box);
    Rectf SceneBox() const;
    Vector2f Offset() const;
    Vector2f Centering() const;
    Json::Value Save();
    void Load(Json::Value val);
    bool operator == (const Camera &c) const;
    bool operator != (const Camera &c) const;

private:
    std::weak_ptr<Entity> mFocus;
    Rectf mBox, mSceneBox;
    std::vector<CameraPan> mPans;
    int mActivePan;
    std::string mScene;
};

#endif