text: #ifndef GRID_HPP_
  #define GRID_HPP_
  
  #include "config.hpp"
  #include "types.hpp"
  
  typedef ubyte GridType;
  
  extern GridType *grid;
  extern GridType *nextGrid;
  
  void insert_glider(const int row, const int col);
  void insert_blinker(const int row, const int col);
  
  #endif