Renderer.h

#ifndef _RENDERER_H
#define _RENDERER_H
#include "Tetromino.h"
#include <GL/glew.h>
#include <SDL2/SDL.h>
#include <array>
#include <vector>
struct Renderer {
  SDL_Window *WINDOW = nullptr;
  const int32_t WINDOW_WIDTH = 300;
  const int32_t WINDOW_HEIGHT = 600;
  const int32_t PLAYFIELD_WIDTH = 300;
  const int32_t PLAYFIELD_HEIGHT = 600;
  int32_t BLOCKSIZE;
  GLuint vertex_shader;
  GLuint fragment_shader;
  GLuint current_vao;
  GLuint current_program;
  std::vector<GLuint> programs;
  std::vector<GLuint> vertex_buffer_objects;
  std::vector<GLuint> vertex_array_objects;
  std::vector<std::pair<GLuint, size_t>> element_buffer_objects;
  void render_tetromino(const Tetromino&);
  void update_tetromino(const Tetromino&);
  void update_playfield(int32_t);
  void delete_row(int32_t);
  void render();
  void create_program();
  std::vector<float> convert_coords_to_vertices(const Tetromino&);
  Renderer();
  ~Renderer();
};
#endif