RenderSystem.hpp

#pragma once
#ifndef KJY_ANIM_ENGINE_RENDER_SYSTEM_HPP_
#define KJY_ANIM_ENGINE_RENDER_SYSTEM_HPP_
#include "SystemInterface.hpp"
#include "util/ShaderLibrary.hpp"
#define GLFW_INCLUDE_NONE
#include <GLFW/glfw3.h>


class Render_System : public SystemInterface{ // Unusual name formatting to indicate singleton 
 public:
    static Render_System&  getInstance() {
        static Render_System _instance_;
        return(_instance_);
    }

    virtual void init(GLFWwindow* window);
    virtual void process(Scene& scene);
    virtual void processEntity(Scene& scene, const MVPset& MVP, Entity* entity, Program* shader = nullptr);

    virtual void processPanels(Scene& scene, vector<unsigned int> alphaMaps, unsigned int panelOutline, int frameCount);
    virtual void processEntityPanels(Scene& scene, const MVPset& MVP, Entity* entity, int alphaMapIdx, Program* shader = nullptr);
    virtual glm::ivec2 getRenderDimensions() const;
    virtual void setPanelParams(int alphaMapIdx);
    virtual void drawPigSpider(Scene& scene, const MVPset& MVP, Entity* entity, int i);
    virtual void processPigSpider(Scene& scene, const MVPset& MVP, Entity* entity, int i);

    virtual void enableIgnoreGloballyIlluminated() {mSkipGiEntities = true;}
    virtual void disableIgnoreGloballyIlluminated() {mSkipGiEntities = false;}

    static Pose getFinalWorldPose(Entity* entity); 
    static void drawAxes(MVPset MVP);
    static void drawAxes(const Pose& pose, const glm::mat4& V, const glm::mat4& P);

    static void changeViewport(int x1, int y1, int x2, int y2);
    static void onResize(GLFWwindow* window, int width, int height);
    static int getWidth() { return w_width; };
    static int getHeight() { return w_height; };
    
protected:
    Render_System() {}
    GLFWwindow* _mWindow = nullptr;
    
 private:
    static int w_width;
    static int w_height; 
    Entity* backupEntity;

    bool mSkipGiEntities = false;

    // for panel scenes
    vector<unsigned int> alphaMaps;
    unsigned int panelOutline;
    int frameCount;

};

#endif