int     calc_carre(char **tab, int x, int y)
{
  while (tab[y][x])
    printf("%d\n", 16);
  return 0;
}

void     walk_on_tab(int size, char **tab, int fd)
{
  int   x;
  int   y;
  int   size_y;
  int   size_x;

  size_y = size;
  size_x = my_strlen(tab[0]);
  for (x = 0, y = 0 ; y < size_y ; y++)
    for (x = 0; y < size_x ; x++)
      {
        if (tab[y][x] == '.')
          calc_carre(tab, x, y);
      }
}