Function find_objowner

src/shk.c:1083–1115

find the shopkeeper who owns 'obj'; needed to handle shared shop walls */

/* find the shopkeeper who owns 'obj'; needed to handle shared shop walls */
struct monst *
find_objowner(
    struct obj *obj,
    coordxy x, coordxy y) /* caller passes obj's location since obj->ox,oy
                           * might be stale; don't update coordinates here
                           * because if we're called during sanity checking
                           * they shouldn't be modified */
{
    struct monst *shkp, *deflt_shkp = 0;

    if (obj->where == OBJ_ONBILL) {
        /* used up item; bill obj coordinates are useless and so are x,y */
        for (shkp = next_shkp(fmon, TRUE); shkp;
             shkp = next_shkp(shkp->nmon, TRUE))
            if (onshopbill(obj, shkp, TRUE))
                return shkp;
    } else {
        char *roomindx, *where = in_rooms(x, y, SHOPBASE);

        /* conceptually object could be inside up to 4 rooms simultaneously;
           in practice it will usually be one room but can sometimes be two;
           check shk and bill for each room rather than just the first;
           fallback to the first shk if obj isn't on the relevant bill(s) */
        for (roomindx = where; *roomindx; ++roomindx)
            if ((shkp = shop_keeper(*roomindx)) != 0) {
                if (onshopbill(obj, shkp, TRUE))
                    return shkp;
                if (!deflt_shkp)
                    deflt_shkp = shkp;
            }
    }
    return deflt_shkp;
}

boolean
tended_shop(struct mkroom *sroom)