gl_scene.h

#pragma once
 
#include <GL/glut.h>
#include <string>
#include <utility>
#include "camera.h"
 
namespace bmpf {
 
    class GLScene {
    public:
 
        GLScene(int clientWidth, int clientHeight, const char *caption) :
                _clientWidth(clientWidth), _clientHeight(clientHeight), _caption(caption), _flgPlay(false) {}
 
        virtual void initGL();
 
        virtual void renderGL();
 
        virtual void motionFunc(int x, int y);
 
        virtual void myKeyboard(unsigned char key);
 
        virtual void myReshape(int width, int height);
 
    protected:
        virtual void init() = 0;
 
        virtual void render() = 0;
 
        virtual void changeState(int num, int delta) = 0;
 
        virtual void incActualState() {};
 
        virtual void decActualState() {};
 
        virtual void incTarget() {};
 
        virtual void decTarget() {};
 
        bool _flgPlay;
 
    private:
        int _clientWidth;
        int _clientHeight;
        const char *_caption;
        Camera _camera;
 
        static const int VERY_BIG_MOUSE_COORDS = 10000;
        int _prevPosX = VERY_BIG_MOUSE_COORDS;
        int _prevPosY = VERY_BIG_MOUSE_COORDS;
 
    };
 
}