Function set_wall

src/display.c:3186–3204

Return wall mode for a horizontal or vertical wall. */

/* Return wall mode for a horizontal or vertical wall. */
staticfn int
set_wall(coordxy x, coordxy y, int horiz)
{
    int wmode, is_1, is_2;

    if (horiz) {
        is_1 = check_pos(x, y - 1, WM_W_TOP);
        is_2 = check_pos(x, y + 1, WM_W_BOTTOM);
    } else {
        is_1 = check_pos(x - 1, y, WM_W_LEFT);
        is_2 = check_pos(x + 1, y, WM_W_RIGHT);
    }
    if (more_than_one(x, y, is_1, is_2, 0)) {
        wmode = 0;
    } else {
        wmode = is_1 + is_2;
    }
    return wmode;
}

/* Return a wall mode for a corner wall. (x4,y4) is the "inner" position. */
staticfn int