Function drop_to

src/dokick.c:1472–1507

}

staticfn void
drop_to(coord *cc, schar loc, coordxy x, coordxy y)
{
    stairway *stway = stairway_at(x, y);

    /* cover all the MIGR_xxx choices generated by down_gate() */
    switch (loc) {
    case MIGR_RANDOM: /* trap door or hole */
        if (Is_stronghold(&u.uz)) {
            cc->x = valley_level.dnum;
            cc->y = valley_level.dlevel;
            break;
        } else if (In_endgame(&u.uz) || Is_botlevel(&u.uz)) {
            cc->y = cc->x = 0;
            break;
        }
        FALLTHROUGH;
        /*FALLTHRU*/
    case MIGR_STAIRS_UP:
    case MIGR_LADDER_UP:
    case MIGR_SSTAIRS:
        if (stway) {
            cc->x = stway->tolev.dnum;
            cc->y = stway->tolev.dlevel;
        } else {
            cc->x = u.uz.dnum;
            cc->y = u.uz.dlevel + 1;
        }
        break;
    default:
    case MIGR_NOWHERE:
        /* y==0 means "nowhere", in which case x doesn't matter */
        cc->y = cc->x = 0;
        break;
    }
}

/* player or missile impacts location, causing objects to fall down */
void