"draw_blocktube", "init_blocktube", (char *)NULL, &blocktube_opts,
40000, 30, 1, 1, 64, 1.0, "",
"A shifting tunnel of reflective blocks", 0, NULL};
"draw_blocktube", "init_blocktube", (char *)NULL, &blocktube_opts,
40000, 30, 1, 1, 64, 1.0, "",
"A shifting tunnel of reflective blocks", 0, NULL};