SceneManager.h

#pragma once

#include <vector>
#include <memory>

#include <glm/glm.hpp>

#include "Camera.h"
#include "ResourceLoader.h"
#include "Cube.h"
#include "VolumeData.h"


class SceneManager
{
public:
    SceneManager(std::shared_ptr<Camera> camera);
    ~SceneManager(void);

    void render();

    void setVolume(VolumeData volumedata);

    void setAlpha(bool state);
    void setHue(bool state);
    void setHueValue(float val);
    void setInvert(bool state);
    void setOpacityValue(float val);

private:
    // Initializes the OpenGL settings
    void initGl();
    // Loads the resource loader
    void loadResourceLoader();
    // Loads the volume renderer shader
    void loadVolumeRendererShader();

    void createFrameBuffer();


    // Loads the cube
    void loadCube();

    bool volumeSet;
    VolumeData _volumedata;

    std::shared_ptr<Camera> _camera;
    std::shared_ptr<ResourceLoader> _resourceLoader;

    std::shared_ptr<Cube> _cube;

    std::shared_ptr<Program> _volumeProgram;
    
    GLuint _FramebufferName;
    GLuint _renderedTexture;

    bool toggleAlpha;
    bool toggleInvert;
    bool toggleHue;
    float hueValue;
    float hueRange;
    float opacityValue;
};