include/camera.h

#ifndef CAMERA_H
#define CAMERA_H

#define _USE_MATH_DEFINES 1
#include "GL/glew.h"
#include "point.h"
#include "vector.h"
#include "box.h"

class CORE_EXPORT Camera
{
public:
    void init(const Box& b);

    void setModelview() const;

    void setProjection() const;

    Point getObs() const;

    void setAspectRatio(float ar);

    void updateClippingPlanes(const Box&);
    
    void incrementDistance(float inc);

    void incrementAngleX(float inc);

    void incrementAngleY(float inc);

    void pan(const Vector& offset); 

private:
    Point pvrp;  // view reference point
    float pdist; // distance obs-vrp
    float pangleX, pangleY, pangleZ;  //  Euler angles
    float pfovy; // fielf of view, vertical
    float paspectRatio; // aspect ratio
    float pzNear, pzFar; // clipping planes
};

#endif