Function fumaroles

src/mkmaze.c:1483–1514

augment the Plane of Fire; called from goto_level() when arriving and moveloop_core() when on the level */

/* augment the Plane of Fire; called from goto_level() when arriving and
   moveloop_core() when on the level */
void
fumaroles(void)
{
    xint16 n, nmax = rn2(3);
    int sizemin = 5;
    boolean snd = FALSE, loud = FALSE;

    if (Is_firelevel(&u.uz)) {
        nmax++;
        sizemin += 5;
    }
    if (svl.level.flags.temperature > 0) {
        nmax++;
        sizemin += 5;
    }

    for (n = nmax; n; n--) {
        coordxy x = rn1(COLNO - 4, 3);
        coordxy y = rn1(ROWNO - 4, 3);

        if (levl[x][y].typ == LAVAPOOL) {
            NhRegion *r = create_gas_cloud(x, y, rn1(10, sizemin), rn1(10, 5));

            clear_heros_fault(r);
            snd = TRUE;
            if (distu(x, y) < 15)
                loud = TRUE;
        }
    }
    if (snd && !Deaf)
        Norep("You hear a %swhoosh!", loud ? "loud " : "");  /* Deaf-aware */
}

/*
 * Special waterlevel stuff in endgame (TH).