Function find_drawbridge

src/dbridge.c:179–205

* Return true with x,y pointing to the drawbridge if x,y initially indicate * a drawbridge or drawbridge wall. */

 * a drawbridge or drawbridge wall.
 */
boolean
find_drawbridge(coordxy *x, coordxy *y)
{
    int dir;

    if (IS_DRAWBRIDGE(levl[*x][*y].typ))
        return TRUE;
    dir = is_drawbridge_wall(*x, *y);
    if (dir >= 0) {
        switch (dir) {
        case DB_NORTH:
            (*y)++;
            break;
        case DB_SOUTH:
            (*y)--;
            break;
        case DB_EAST:
            (*x)--;
            break;
        case DB_WEST:
            (*x)++;
            break;
        }
        return TRUE;
    }
    return FALSE;
}

/*
 * Find the drawbridge wall associated with a drawbridge.