text: #ifndef GAME_H_
  #define GAME_H_
  
  #define COL_NUM 300 // size of game universe, only windowed is shown.
  #define ROW_NUM 300
  #define ALIVE 1
  #define DEAD 0
  
  #define RUNNING_STATE 0
  #define PAUSE_STATE 1
  
  typedef struct {
    int cell_state[COL_NUM][ROW_NUM];
    int game_state;
    int CELL_WIDTH;
    int CELL_HEIGHT;
  } board_t;
  
  #endif // GAME_H_
  