Function confdir

src/cmd.c:4299–4310

if hero is impaired, pick random movement direction */

/* if hero is impaired, pick random movement direction */
void
confdir(boolean force_impairment)
{
    if (force_impairment || u_maybe_impaired()) {
        int kmax = NODIAG(u.umonnum) ? (N_DIRS / 2) : N_DIRS,
            k = (int) dirs_ord[rn2(kmax)];

        u.dx = xdir[k];
        u.dy = ydir[k];
    }
    return;
}

const char *
directionname(int dir)