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/cvs/deliantra/server/socket/item.C
Revision: 1.48
Committed: Fri Jun 8 09:18:31 2007 UTC (16 years, 11 months ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.47: +11 -7 lines
Log Message:
likely fix the crash in LookAt

File Contents

# Content
1 /*
2 * This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game.
3 *
4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 *
8 * Crossfire TRT is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the Free
10 * Software Foundation; either version 2 of the License, or (at your option)
11 * any later version.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 * for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51
20 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 *
22 * The authors can be reached via e-mail to <crossfire@schmorp.de>
23 */
24
25 /**
26 * \file
27 * Client/server logic.
28 *
29 * \date 2003-12-02
30 *
31 * This contains item logic for client/server. It doesn't contain
32 * the actual commands that send the data, but does contain
33 * the logic for what items should be sent.
34 */
35
36 #include <global.h>
37 #include <object.h>
38 #include <sproto.h>
39
40 /** This is the maximum number of bytes we expect any one item to take up */
41 #define MAXITEMLEN 300
42
43 #if 0
44 tag_t
45 client_container::tag () const
46 {
47 switch (type)
48 {
49 case CC_INVENTORY:
50 return ns->pl->count;
51 case CC_MAPSPACE:
52 return 0;
53 case CC_CONTAINER:
54 return env->count;
55 }
56
57 abort ();
58 }
59
60 void
61 client_container::clear ()
62 {
63 switch (type)
64 {
65 case CC_INVENTORY:
66 abort ();
67
68 case CC_MAPSPACE:
69 case CC_CONTAINER:
70 ns->send_packet_printf ("delinv %d", tag ());
71 break;
72 }
73
74 for (iterator i = begin (); i != end (); ++i)
75 i->op->seen_by = 0;
76
77 vector< refitem, slice_allocator<refitem> >::clear ();
78 }
79
80 inline iterator
81 client_container::merge_item (iterator i, object *op)
82 {
83 if (i != end () && i->op == op)
84 return ++i;
85
86 if (op->seen_by)
87 return; // seen by another entity already
88
89 op->seen_by = this;
90
91 refitem ref;
92 ref.op = op;
93
94 return insert (i, ref);
95 }
96
97 void
98 client_container::update (int offset)
99 {
100 iterator i = begin ();
101
102 switch (type)
103 {
104 case CC_INVENTORY:
105 case CC_CONTAINER:
106 {
107 object *env = type == CC_INVENTORY
108 ? ns->pl->ob
109 : this->env;
110
111 // pass 1, erase all objects no longer in container
112 for (iterator j = begin (); j != end (); ++j)
113 if (j->op->env != env)
114 {
115 j->op->seen_by = 0;
116 erase (j);
117 }
118
119 // pass 2 merge items
120 for (object *op = env->inv; op; op = op->below)
121 {
122 if (--offset < 0)
123 i = merge_item (i, op);
124 else if (offset < -FLOORBOX_PAGESIZE)
125 break;
126 }
127 }
128 break;
129
130 case CC_MAPSPACE:
131 {
132 // pass 1, erase all objects no longer on space
133 for (iterator j = begin (); j != end (); ++j)
134 if (j->op->x != x || j->op->y != y || j->op->map != map)
135 {
136 j->op->seen_by = 0;
137 erase (j);
138 }
139
140 // pass 2 merge items
141 for (object *op = GET_MAP_OB (map, x, y); op; op = op->above)
142 {
143 if (--offset < 0)
144 i = merge_item (i, op);
145 else if (offset < -FLOORBOX_PAGESIZE)
146 break;
147 }
148 }
149 break;
150 }
151
152 // pass 3, erase all extra items
153 for (iterator j = i; j != end (); ++j)
154 j->op->seen_by = 0;
155
156 if (i != end ())
157 erase (i, end ());
158 }
159
160 void
161 client_container::set_mapspace (maptile *map, int x, int y)
162 {
163 if (type == CC_MAPSPACE
164 && this->map == map
165 && this->x == x
166 && this->y == y)
167 return;
168
169 clear ();
170
171 type = CC_MAPSPACE;
172 this->map = map;
173 this->x = x;
174 this->y = y;
175 }
176
177 void
178 client_container::set_container (object *env)
179 {
180 }
181 #endif
182
183 /*******************************************************************************
184 *
185 * Functions related to sending object data to the client.
186 *
187 ******************************************************************************/
188
189 /**
190 * This is a similar to query_name, but returns flags
191 * to be sent to client.
192 */
193 unsigned int
194 query_flags (object *op)
195 {
196 unsigned int flags = 0;
197
198 if (QUERY_FLAG (op, FLAG_APPLIED))
199 {
200 switch (op->type)
201 {
202 case BOW:
203 case WAND:
204 case ROD:
205 case HORN:
206 flags = a_readied;
207 break;
208 case WEAPON:
209 flags = a_wielded;
210 break;
211 case SKILL:
212 case ARMOUR:
213 case HELMET:
214 case SHIELD:
215 case RING:
216 case BOOTS:
217 case GLOVES:
218 case AMULET:
219 case GIRDLE:
220 case BRACERS:
221 case CLOAK:
222 flags = a_worn;
223 break;
224 case CONTAINER:
225 flags = a_active;
226 break;
227 default:
228 flags = a_applied;
229 break;
230 }
231 }
232
233 if (op->type == CONTAINER && ((op->env && op->env->container == op) || (!op->env && QUERY_FLAG (op, FLAG_APPLIED))))
234 flags |= F_OPEN;
235
236 if (QUERY_FLAG (op, FLAG_KNOWN_CURSED))
237 {
238 if (QUERY_FLAG (op, FLAG_DAMNED))
239 flags |= F_DAMNED;
240 else if (QUERY_FLAG (op, FLAG_CURSED))
241 flags |= F_CURSED;
242 }
243
244 if (QUERY_FLAG (op, FLAG_KNOWN_MAGICAL) && !QUERY_FLAG (op, FLAG_IDENTIFIED))
245 flags |= F_MAGIC;
246 if (QUERY_FLAG (op, FLAG_UNPAID))
247 flags |= F_UNPAID;
248 if (QUERY_FLAG (op, FLAG_INV_LOCKED))
249 flags |= F_LOCKED;
250
251 return flags;
252 }
253
254 /* Used in the send_look to put object head into packet
255 * sl for socket ns. Need socket to know if we need to send
256 * animation of face to the client.
257 */
258 static void
259 add_object_to_socklist (client &ns, packet &sl, object *head)
260 {
261 int flags, len, anim_speed;
262 char item_n[MAX_BUF];
263 const char *item_p;
264
265 flags = query_flags (head);
266 if (QUERY_FLAG (head, FLAG_NO_PICK))
267 flags |= F_NOPICK;
268
269 ns.send_face (head->face);
270 ns.flush_fx ();
271
272 if (QUERY_FLAG (head, FLAG_ANIMATE) && !ns.anims_sent[head->animation_id])
273 ns.send_animation (head->animation_id);
274
275 sl << uint32 (head->count)
276 << uint32 (flags)
277 << uint32 (QUERY_FLAG (head, FLAG_NO_PICK) ? -1 : WEIGHT (head))
278 << uint32 (head->face);
279
280 if (!head->custom_name)
281 {
282 strncpy (item_n, query_base_name (head, 0), 127);
283 item_n[127] = 0;
284 len = strlen (item_n);
285 item_p = query_base_name (head, 1);
286 }
287 else
288 {
289 strncpy (item_n, head->custom_name, 127);
290 item_n[127] = 0;
291 len = strlen (item_n);
292 item_p = head->custom_name;
293 }
294
295 strncpy (item_n + len + 1, item_p, 127);
296 item_n[254] = 0;
297 len += strlen (item_n + 1 + len) + 1;
298
299 sl << data8 (item_n, len)
300 << uint16 (head->animation_id);
301
302 anim_speed = 0;
303 if (QUERY_FLAG (head, FLAG_ANIMATE))
304 {
305 if (head->anim_speed)
306 anim_speed = head->anim_speed;
307 else
308 {
309 if (fabs (head->speed) < 0.001)
310 anim_speed = 255;
311 else if (fabs (head->speed) >= 1.0)
312 anim_speed = 1;
313 else
314 anim_speed = (int) (1.0 / fabs (head->speed));
315 }
316
317 if (anim_speed > 255)
318 anim_speed = 255;
319 }
320
321 sl << uint8 (anim_speed)
322 << uint32 (head->nrof);
323
324 if (ns.itemcmd == 2)
325 sl << uint16 (head->client_type);
326
327 SET_FLAG (head, FLAG_CLIENT_SENT);
328 }
329
330 /**
331 * Send the look window. Don't need to do animations here
332 * This sends all the faces to the client, not just updates. This is
333 * because object ordering would otherwise be inconsistent.
334 */
335 void
336 esrv_draw_look (player *pl)
337 {
338 int got_one = 0, start_look = 0, end_look = 0;
339
340 object *ob = pl->ob;
341
342 if (!pl->ns->update_look)
343 {
344 LOG (llevDebug, "esrv_draw_look called when update_look was not set (player %s)\n", &ob->name);
345 return;
346 }
347 else
348 pl->ns->update_look = 0;
349
350 if (QUERY_FLAG (ob, FLAG_REMOVED)
351 || !ob->map
352 || ob->map->in_memory != MAP_IN_MEMORY
353 || out_of_map (ob->map, ob->x, ob->y))
354 return;
355
356 pl->ns->send_packet ("delinv 0");
357
358 packet sl;
359 sl.printf ("item%d ", pl->ns->itemcmd);
360
361 sl << uint32 (0);
362
363 pl->ns->send_face (empty_face);
364 pl->ns->flush_fx ();
365
366 if (pl->ns->look_position)
367 {
368 char buf[80];
369 snprintf (buf, 80, "Apply this to see %d previous items", FLOORBOX_PAGESIZE);
370
371 sl << uint32 (0x80000000 | (pl->ns->look_position - FLOORBOX_PAGESIZE))
372 << uint32 (0)
373 << sint32 (-1)
374 << uint32 (empty_face)
375 << data8 (buf)
376 << uint16 (0)
377 << uint8 (0)
378 << uint32 (0);
379
380 if (pl->ns->itemcmd == 2)
381 sl << uint16 (0);
382 }
383
384 object *tmp = ob->ms ().top;
385 for (object *last = 0; tmp != last; tmp = tmp->below)
386 {
387 object *head;
388
389 if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !last)
390 {
391 last = tmp->below; /* assumes double floor mode */
392 if (last && QUERY_FLAG (last, FLAG_IS_FLOOR))
393 last = last->below;
394 }
395
396 if (tmp->client_visible ())
397 {
398 if (++start_look < pl->ns->look_position)
399 continue;
400
401 end_look++;
402
403 if (end_look > FLOORBOX_PAGESIZE)
404 {
405 /* What we basically do is make a 'fake' object - when the user applies it,
406 * we notice the special tag the object has, and act accordingly.
407 */
408 sl << uint32 (0x80000000 | (pl->ns->look_position + FLOORBOX_PAGESIZE))
409 << uint32 (0)
410 << uint32 ((uint32) - 1)
411 << uint32 (empty_face)
412 << data8 ("Apply this to see next group of items")
413 << uint16 (0)
414 << uint8 (0)
415 << uint32 (0);
416
417 if (pl->ns->itemcmd == 2)
418 sl << uint16 (0);
419
420 break;
421 }
422
423 if (tmp->head)
424 head = tmp->head;
425 else
426 head = tmp;
427
428 add_object_to_socklist (*pl->ns, sl, head);
429 got_one++;
430
431 if (sl.length () >= (MAXSOCKBUF - MAXITEMLEN))
432 {
433 pl->ns->send_packet (sl);
434
435 sl.reset ();
436 sl.printf ("item%d ", pl->ns->itemcmd);
437 sl << uint32 (0);
438 got_one = 0;
439 }
440 }
441 }
442
443 if (got_one)
444 pl->ns->send_packet (sl);
445
446 }
447
448 /**
449 * Sends whole inventory.
450 */
451 void
452 esrv_send_inventory (object *pl, object *op)
453 {
454 if (!pl->contr->ns)//D
455 return;
456
457 int got_one = 0;
458
459 pl->contr->ns->send_packet_printf ("delinv %d", op->count);
460
461 packet sl;
462 sl.printf ("item%d ", pl->contr->ns->itemcmd);
463
464 sl << uint32 (op->count);
465
466 for (object *tmp = op->inv; tmp; tmp = tmp->below)
467 {
468 object *head;
469
470 if (tmp->head)
471 head = tmp->head;
472 else
473 head = tmp;
474
475 if (head->client_visible ())
476 {
477 add_object_to_socklist (*pl->contr->ns, sl, head);
478
479 got_one++;
480
481 /* IT is possible for players to accumulate a huge amount of
482 * items (especially with some of the bags out there) to
483 * overflow the buffer. IF so, send multiple item commands.
484 */
485 if (sl.length () >= (MAXSOCKBUF - MAXITEMLEN))
486 {
487 pl->contr->ns->send_packet (sl);
488
489 sl.reset ();
490 sl.printf ("item%d ", pl->contr->ns->itemcmd);
491 sl << uint32 (op->count);
492 got_one = 0;
493 }
494 }
495 }
496
497 if (got_one)
498 pl->contr->ns->send_packet (sl);
499 }
500
501 /**
502 * Updates object *op for player *pl.
503 *
504 * flags is a list of values to update
505 * to the client (as defined in newclient.h - might as well use the
506 * same value both places.
507 */
508 void
509 esrv_update_item (int flags, object *pl, object *op)
510 {
511 /* If we have a request to send the player item, skip a few checks. */
512 if (op != pl)
513 {
514 if (!op->client_visible ())
515 return;
516 /* we remove the check for op->env, because in theory, the object
517 * is hopefully in the same place, so the client should preserve
518 * order.
519 */
520 }
521
522 client *ns = pl->contr->ns;
523 if (!ns)
524 return;
525
526 if (!QUERY_FLAG (op, FLAG_CLIENT_SENT))
527 {
528 /* FLAG_CLIENT_SENT is debug only. We are using it to see where
529 * this is happening - we can set a breakpoint here in the debugger
530 * and track back the call.
531 */
532 LOG (llevDebug, "We have not sent item %s (%d)\n", &op->name, op->count);
533 }
534
535 packet sl ("upditem");
536
537 sl << uint8 (flags);
538
539 if (op->head)
540 op = op->head;
541
542 sl << uint32 (op->count);
543
544 if (flags & UPD_LOCATION)
545 sl << uint32 (op->env ? op->env->count : 0);
546
547 if (flags & UPD_FLAGS)
548 sl << uint32 (query_flags (op));
549
550 if (flags & UPD_WEIGHT)
551 {
552 sint32 weight = WEIGHT (op);
553
554 sl << uint32 (QUERY_FLAG (op, FLAG_NO_PICK) ? -1 : weight);
555
556 if (pl == op)
557 ns->last_weight = weight;
558 }
559
560 if (flags & UPD_FACE)
561 {
562 ns->send_face (op->face);
563 ns->flush_fx ();
564 sl << uint32 (op->face);
565 }
566
567 if (flags & UPD_NAME)
568 {
569 int len;
570 const char *item_p;
571 char item_n[MAX_BUF];
572
573 if (!op->custom_name)
574 {
575 strncpy (item_n, query_base_name (op, 0), 127);
576 item_n[127] = 0;
577 len = strlen (item_n);
578 item_p = query_base_name (op, 1);
579 }
580 else
581 {
582 strncpy (item_n, op->custom_name, 127);
583 item_n[127] = 0;
584 len = strlen (item_n);
585 item_p = op->custom_name;
586 }
587
588 strncpy (item_n + len + 1, item_p, 127);
589 item_n[254] = 0;
590 len += strlen (item_n + 1 + len) + 1;
591
592 sl << data8 (item_n, len);
593 }
594
595 if (flags & UPD_ANIM)
596 sl << uint16 (op->animation_id);
597
598 if (flags & UPD_ANIMSPEED)
599 {
600 int anim_speed = 0;
601
602 if (QUERY_FLAG (op, FLAG_ANIMATE))
603 {
604 if (op->anim_speed)
605 anim_speed = op->anim_speed;
606 else
607 {
608 if (fabs (op->speed) < 0.001)
609 anim_speed = 255;
610 else if (fabs (op->speed) >= 1.0)
611 anim_speed = 1;
612 else
613 anim_speed = (int) (1.0 / fabs (op->speed));
614 }
615
616 if (anim_speed > 255)
617 anim_speed = 255;
618 }
619
620 sl << uint8 (anim_speed);
621 }
622
623 if (flags & UPD_NROF)
624 sl << uint32 (op->nrof);
625
626 pl->contr->ns->send_packet (sl);
627 }
628
629 /**
630 * Sends item's info to player.
631 */
632 void
633 esrv_send_item (object *pl, object *op)
634 {
635 if (!pl->contr->ns)
636 return;
637
638 /* If this is not the player object, do some more checks */
639 if (op != pl)
640 {
641 /* We only send 'visibile' objects to the client */
642 if (!op->client_visible ())
643 return;
644
645 /* if the item is on the ground, mark that the look needs to
646 * be updated.
647 */
648 if (!op->env)
649 {
650 pl->contr->ns->floorbox_update ();
651 return;
652 }
653 }
654
655 packet sl;
656
657 sl.printf ("item%d ", pl->contr->ns->itemcmd);
658
659 if (op->head)
660 op = op->head;
661
662 sl << uint32 (op->env ? op->env->count : 0);
663
664 add_object_to_socklist (*pl->contr->ns, sl, op);
665
666 pl->contr->ns->send_packet (sl);
667 SET_FLAG (op, FLAG_CLIENT_SENT);
668 }
669
670 /**
671 * Tells the client to delete an item. Uses the item
672 * command with a -1 location.
673 */
674 void
675 esrv_del_item (player *pl, int tag)
676 {
677 if (!pl->ns)
678 return;
679
680 packet sl ("delitem");
681
682 sl << uint32 (tag);
683
684 pl->ns->send_packet (sl);
685 }
686
687
688 /*******************************************************************************
689 *
690 * Client has requested us to do something with an object.
691 *
692 ******************************************************************************/
693
694 /**
695 * Takes a player and object count (tag) and returns the actual object
696 * pointer, or null if it can't be found.
697 */
698 object *
699 esrv_get_ob_from_count (object *pl, tag_t count)
700 {
701 if (pl->count == count)
702 return pl;
703
704 for (object *op = pl->inv; op; op = op->below)
705 if (op->count == count)
706 return op;
707 else if (op->type == CONTAINER && pl->container == op)
708 for (object *tmp = op->inv; tmp; tmp = tmp->below)
709 if (tmp->count == count)
710 return tmp;
711
712 for (object *op = GET_MAP_OB (pl->map, pl->x, pl->y); op; op = op->above)
713 if (op->head && op->head->count == count)
714 return op;
715 else if (op->count == count)
716 return op;
717 else if (op->type == CONTAINER && pl->container == op)
718 for (object *tmp = op->inv; tmp; tmp = tmp->below)
719 if (tmp->count == count)
720 return tmp;
721
722 #if 0
723 /* If the high bit is set, player examined a pseudo object. */
724 if (count & 0x80000000)
725 return 0;
726 #endif
727
728 return 0;
729 }
730
731 /** Client wants to examine some object. So lets do so. */
732 void
733 ExamineCmd (char *buf, int len, player *pl)
734 {
735 tag_t tag = atoi (buf);
736
737 object *op = esrv_get_ob_from_count (pl->ob, tag);
738
739 if (!op)
740 {
741 LOG (llevDebug, "Player '%s' tried to examine the unknown object (%ld)\n", &pl->ob->name, tag);
742 return;
743 }
744
745 examine (pl->ob, op);
746 }
747
748 /** Client wants to examine some object. So lets do so. */
749 void
750 ExCmd (char *buf, int len, player *pl)
751 {
752 tag_t tag = atoi (buf);
753
754 if (object *op = esrv_get_ob_from_count (pl->ob, tag))
755 {
756 std::string s = op->describe (pl->ob);
757
758 packet sl ("ex");
759 sl << ber32 (tag) << s.c_str ();
760
761 pl->ns->send_packet (sl);
762 }
763 }
764
765 /** Client wants to apply some object. Lets do so. */
766 void
767 ApplyCmd (char *buf, int len, player *pl)
768 {
769 tag_t tag = atoi (buf);
770
771 /* sort of a hack, but if the player saves and the player then manually
772 * applies a savebed (or otherwise tries to do stuff), we run into trouble.
773 */
774 if (QUERY_FLAG (pl->ob, FLAG_REMOVED))
775 return;
776
777 /* If the high bit is set, player applied a pseudo object. */
778 if (tag & 0x80000000)
779 {
780 pl->ns->look_position = tag & 0x7fffffff;
781 pl->ns->floorbox_update ();
782 return;
783 }
784
785 object *op = esrv_get_ob_from_count (pl->ob, tag);
786
787 if (!op)
788 {
789 LOG (llevDebug, "Player '%s' tried to apply the unknown object (%d)\n", &pl->ob->name, tag);
790 return;
791 }
792
793 player_apply (pl->ob, op, 0, 0);
794 }
795
796 /** Client wants to lock some object. Lets do so. */
797 void
798 LockItem (char *data, int len, player *pl)
799 {
800 int flag = data[0];
801 tag_t tag = net_uint32 ((uint8 *)data + 1);
802 object *op = esrv_get_ob_from_count (pl->ob, tag);
803
804 if (!op)
805 {
806 new_draw_info (NDI_UNIQUE, 0, pl->ob, "Could not find object to lock/unlock");
807 return;
808 }
809
810 if (!flag)
811 CLEAR_FLAG (op, FLAG_INV_LOCKED);
812 else
813 SET_FLAG (op, FLAG_INV_LOCKED);
814
815 esrv_update_item (UPD_FLAGS, pl->ob, op);
816 }
817
818 /** Client wants to mark some object. Lets do so. */
819 void
820 MarkItem (char *data, int len, player *pl)
821 {
822 tag_t tag = net_uint32 ((uint8 *)data);
823 object *op = esrv_get_ob_from_count (pl->ob, tag);
824
825 if (!op)
826 {
827 new_draw_info (NDI_UNIQUE, 0, pl->ob, "Could not find object to mark");
828 return;
829 }
830
831 pl->mark = op;
832 new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "Marked item %s", query_name (op));
833 }
834
835 /**
836 * look_at prints items on the specified square.
837 *
838 * [ removed EARTHWALL check and added check for containers inventory.
839 * Tero.Haatanen@lut.fi ]
840 */
841 static void
842 look_at (player *pl, int dx, int dy)
843 {
844 object *ob = pl->ob;
845
846 maptile *m = pl->observe->map;
847 sint16 x = pl->observe->x + dx;
848 sint16 y = pl->observe->y + dy;
849
850 if (!xy_normalise (m, x, y))
851 {
852 new_draw_info (NDI_UNIQUE, 0, ob, "You see nothing there.");
853 return;
854 }
855
856 int flag = 0;
857
858 for (object *tmp = m->at (x, y).top; tmp; tmp = tmp->below)
859 {
860 if (tmp->invisible && !QUERY_FLAG (ob, FLAG_WIZ))
861 continue;
862
863 if (!flag)
864 {
865 if (dx || dy)
866 new_draw_info (NDI_UNIQUE, 0, ob, "There you see:");
867 else
868 new_draw_info (NDI_UNIQUE, 0, ob, "You see:");
869
870 flag = 1;
871 }
872
873 if (QUERY_FLAG (ob, FLAG_WIZ))
874 new_draw_info_format (NDI_UNIQUE, 0, ob, "- %s (%d).", query_name (tmp), tmp->count);
875 else
876 new_draw_info_format (NDI_UNIQUE, 0, ob, "- %s.", query_name (tmp));
877
878 if (((tmp->inv != NULL || (tmp->head && tmp->head->inv)) &&
879 (tmp->type != CONTAINER && tmp->type != FLESH)) || QUERY_FLAG (ob, FLAG_WIZ))
880 inventory (ob, tmp->head == NULL ? tmp : tmp->head);
881
882 if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !QUERY_FLAG (ob, FLAG_WIZ)) /* don't continue under the floor */
883 break;
884 }
885
886 if (!flag)
887 {
888 if (dx || dy)
889 new_draw_info (NDI_UNIQUE, 0, ob, "You see nothing there.");
890 else
891 new_draw_info (NDI_UNIQUE, 0, ob, "You see nothing.");
892 }
893 }
894
895 /** Client wants to look at some object. Lets do so. */
896 void
897 LookAt (char *buf, int len, player *pl)
898 {
899 char *cp;
900
901 int dx = atoi (buf);
902 if (!(cp = strchr (buf, ' ')))
903 return;
904
905 int dy = atoi (cp);
906
907 if (player *opl = pl->observe->contr)
908 if (client *ns = opl->ns)
909 {
910 if (fabs (dx) > ns->mapx / 2 || fabs (dy) > ns->mapy / 2)
911 return;
912
913 if (opl->blocked_los[dx + ns->mapx / 2][dy + ns->mapy / 2])
914 return;
915 }
916
917 look_at (pl, dx, dy);
918 }
919
920 /** Move an object to a new location */
921 void
922 esrv_move_object (object *pl, tag_t to, tag_t tag, long nrof)
923 {
924 object *op, *env;
925
926 op = esrv_get_ob_from_count (pl, tag);
927 if (!op)
928 {
929 LOG (llevDebug, "Player '%s' tried to move an unknown object (%ld)\n", &pl->name, tag);
930 return;
931 }
932
933 if (!to)
934 { /* drop it to the ground */
935 if (op->map && !op->env)
936 return;
937
938 /* If it is an active container, then we should drop all objects
939 * in the container and not the container itself.
940 */
941 if (op->inv && QUERY_FLAG (op, FLAG_APPLIED))
942 {
943 object *current, *next;
944
945 for (current = op->inv; current != NULL; current = next)
946 {
947 next = current->below;
948 drop_object (pl, current, 0);
949 }
950
951 esrv_update_item (UPD_WEIGHT, pl, op);
952 }
953 else
954 drop_object (pl, op, nrof);
955
956 return;
957 }
958 else if (to == pl->count)
959 { /* pick it up to the inventory */
960 /* return if player has already picked it up */
961 if (op->env == pl)
962 return;
963
964 pl->contr->count = nrof;
965 pick_up (pl, op);
966 return;
967 }
968
969 env = esrv_get_ob_from_count (pl, to);
970 if (!env)
971 {
972 LOG (llevDebug, "Player '%s' tried to move object to the unknown location (%d)\n", &pl->name, to);
973 return;
974 }
975
976 /* put_object_in_sack presumes that necessary sanity checking
977 * has already been done (eg, it can be picked up and fits in
978 * in a sack, so check for those things. We should also check
979 * an make sure env is in fact a container for that matter.
980 */
981 if (env->type == CONTAINER && can_pick (pl, op) && sack_can_hold (pl, env, op, nrof))
982 put_object_in_sack (pl, env, op, nrof);
983 }
984