Function xy_set_wall_state

src/display.c:3275–3326

called for every by set_wall_state() and for specific during vault wall repair */

/* called for every <x,y> by set_wall_state() and for specific <x,y> during
   vault wall repair */
void
xy_set_wall_state(coordxy x, coordxy y)
{
    coordxy wmode;
    struct rm *lev = &levl[x][y];

    switch (lev->typ) {
    case SDOOR:
        wmode = set_wall(x, y, (coordxy) lev->horizontal);
        break;
    case VWALL:
        wmode = set_wall(x, y, 0);
        break;
    case HWALL:
        wmode = set_wall(x, y, 1);
        break;
    case TDWALL:
        wmode = set_twall(x, y, x, y - 1, x - 1, y + 1, x + 1, y + 1);
        break;
    case TUWALL:
        wmode = set_twall(x, y, x, y + 1, x + 1, y - 1, x - 1, y - 1);
        break;
    case TLWALL:
        wmode = set_twall(x, y, x + 1, y, x - 1, y - 1, x - 1, y + 1);
        break;
    case TRWALL:
        wmode = set_twall(x, y, x - 1, y, x + 1, y + 1, x + 1, y - 1);
        break;
    case TLCORNER:
        wmode = set_corn(x - 1, y - 1, x, y - 1, x - 1, y, x + 1, y + 1);
        break;
    case TRCORNER:
        wmode = set_corn(x, y - 1, x + 1, y - 1, x + 1, y, x - 1, y + 1);
        break;
    case BLCORNER:
        wmode = set_corn(x, y + 1, x - 1, y + 1, x - 1, y, x + 1, y - 1);
        break;
    case BRCORNER:
        wmode = set_corn(x + 1, y, x + 1, y + 1, x, y + 1, x - 1, y - 1);
        break;
    case CROSSWALL:
        wmode = set_crosswall(x, y);
        break;

    default:
        wmode = -1; /* don't set wall info */
        break;
    }

    if (wmode >= 0)
        lev->wall_info = (lev->wall_info & ~WM_MASK) | wmode;
}

/* Called from mklev.  Scan the level and set the wall modes. */
void