#define fog_width 16
#define fog_height 16
static char fog_bits[] = {
   0x3c, 0x7e, 0x7e, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0x7f, 0xee, 0x7f,
   0xff, 0xfd, 0xff, 0xf8, 0xff, 0x7d, 0xfe, 0x3f, 0xbf, 0x7f, 0x9f, 0xff,
   0xbf, 0xff, 0xfe, 0xff, 0xfe, 0x7f, 0x3c, 0x1b};