Function create_trap

src/sp_lev.c:1811–1846

* Create a trap in a room. */

 * Create a trap in a room.
 */
staticfn void
create_trap(spltrap *t, struct mkroom *croom)
{
    coordxy x = -1, y = -1;
    coord tm;
    unsigned mktrap_flags = MKTRAP_MAZEFLAG;

    if (t->type == VIBRATING_SQUARE) {
        pick_vibrasquare_location();
        maketrap(svi.inv_pos.x, svi.inv_pos.y, VIBRATING_SQUARE);
        return;
    } else if (croom) {
        get_free_room_loc(&x, &y, croom, t->coord);
    } else {
        int trycnt = 0;

        do {
            get_location_coord(&x, &y, DRY, croom, t->coord);
        } while ((levl[x][y].typ == STAIRS || levl[x][y].typ == LADDER)
                 && ++trycnt <= 100);
        if (trycnt > 100)
            return;
    }

    if (!t->spider_on_web)
        mktrap_flags |= MKTRAP_NOSPIDERONWEB;
    if (t->seen)
        mktrap_flags |= MKTRAP_SEEN;
    if (t->novictim)
        mktrap_flags |= MKTRAP_NOVICTIM;

    tm.x = x;
    tm.y = y;

    mktrap(t->type, mktrap_flags, (struct mkroom *) 0, &tm);
}

/*
 * Create a monster in a room.