Renderer.h

#pragma once
 
#include "../../pch.h"
 
#include "../Vertex.h"
#include "../GLSLProgram.h"
 
// init --_
//       `-->begin() 
//       |
//       | --> draw()
//       | --> draw()
//       |
//       |--> end() 
//       `--> renderBatch() 
 
namespace Taz
{
    struct RenderBatch {
        enum class RendererType {
            Line,
            PlaneColor,
            PlaneModel,
            Light
        };
 
        RendererType renderer_type = RendererType::Line;
 
        enum class MeshType {
            Line,
            Triangle,
            Quad,
            Box,
            Sphere
        };
        MeshType mesh_type = MeshType::Quad;
 
        std::string shaderName;
        std::string batchName;
 
        size_t count = 0;
        size_t index = 0;
 
        // Additional shader uniforms
        glm::mat4 rotationMatrix = glm::mat4(1.0f);
        glm::vec2 viewportSize = glm::vec2(0.0f);
    };
 
 
 
    class Renderer {
    public:
        Renderer();
        ~Renderer();
 
        virtual void init();
 
        virtual void begin();
 
        virtual void endBatch(const Taz::RenderBatch& batch) = 0;
 
        GLuint _vboInstances;
 
        size_t currentBatchIndex = 0;
    };
 
}