ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/deliantra/server/socket/item.C
Revision: 1.45
Committed: Mon May 28 21:22:26 2007 UTC (16 years, 11 months ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.44: +21 -21 lines
Log Message:
update copyrights in socket/*.C

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 (object *pl)
337 {
338 int got_one = 0, start_look = 0, end_look = 0;
339
340 if (!pl->contr->ns->update_look)
341 {
342 LOG (llevDebug, "esrv_draw_look called when update_look was not set (player %s)\n", &pl->name);
343 return;
344 }
345 else
346 pl->contr->ns->update_look = 0;
347
348 if (QUERY_FLAG (pl, FLAG_REMOVED)
349 || !pl->map
350 || pl->map->in_memory != MAP_IN_MEMORY
351 || out_of_map (pl->map, pl->x, pl->y))
352 return;
353
354 pl->contr->ns->send_packet ("delinv 0");
355
356 packet sl;
357 sl.printf ("item%d ", pl->contr->ns->itemcmd);
358
359 sl << uint32 (0);
360
361 pl->contr->ns->send_face (empty_face);
362 pl->contr->ns->flush_fx ();
363
364 if (pl->contr->ns->look_position)
365 {
366 char buf[80];
367 snprintf (buf, 80, "Apply this to see %d previous items", FLOORBOX_PAGESIZE);
368
369 sl << uint32 (0x80000000 | (pl->contr->ns->look_position - FLOORBOX_PAGESIZE))
370 << uint32 (0)
371 << sint32 (-1)
372 << uint32 (empty_face)
373 << data8 (buf)
374 << uint16 (0)
375 << uint8 (0)
376 << uint32 (0);
377
378 if (pl->contr->ns->itemcmd == 2)
379 sl << uint16 (0);
380 }
381
382 object *tmp = pl->ms ().top;
383 for (object *last = 0; tmp != last; tmp = tmp->below)
384 {
385 object *head;
386
387 if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !last)
388 {
389 last = tmp->below; /* assumes double floor mode */
390 if (last && QUERY_FLAG (last, FLAG_IS_FLOOR))
391 last = last->below;
392 }
393
394 if (tmp->client_visible ())
395 {
396 if (++start_look < pl->contr->ns->look_position)
397 continue;
398
399 end_look++;
400
401 if (end_look > FLOORBOX_PAGESIZE)
402 {
403 /* What we basically do is make a 'fake' object - when the user applies it,
404 * we notice the special tag the object has, and act accordingly.
405 */
406 sl << uint32 (0x80000000 | (pl->contr->ns->look_position + FLOORBOX_PAGESIZE))
407 << uint32 (0)
408 << uint32 ((uint32) - 1)
409 << uint32 (empty_face)
410 << data8 ("Apply this to see next group of items")
411 << uint16 (0)
412 << uint8 (0)
413 << uint32 (0);
414
415 if (pl->contr->ns->itemcmd == 2)
416 sl << uint16 (0);
417
418 break;
419 }
420
421 if (tmp->head)
422 head = tmp->head;
423 else
424 head = tmp;
425
426 add_object_to_socklist (*pl->contr->ns, sl, head);
427 got_one++;
428
429 if (sl.length () >= (MAXSOCKBUF - MAXITEMLEN))
430 {
431 pl->contr->ns->send_packet (sl);
432
433 sl.reset ();
434 sl.printf ("item%d ", pl->contr->ns->itemcmd);
435 sl << uint32 (0);
436 got_one = 0;
437 }
438 }
439 }
440
441 if (got_one)
442 pl->contr->ns->send_packet (sl);
443
444 }
445
446 /**
447 * Sends whole inventory.
448 */
449 void
450 esrv_send_inventory (object *pl, object *op)
451 {
452 if (!pl->contr->ns)//D
453 return;
454
455 int got_one = 0;
456
457 pl->contr->ns->send_packet_printf ("delinv %d", op->count);
458
459 packet sl;
460 sl.printf ("item%d ", pl->contr->ns->itemcmd);
461
462 sl << uint32 (op->count);
463
464 for (object *tmp = op->inv; tmp; tmp = tmp->below)
465 {
466 object *head;
467
468 if (tmp->head)
469 head = tmp->head;
470 else
471 head = tmp;
472
473 if (head->client_visible ())
474 {
475 add_object_to_socklist (*pl->contr->ns, sl, head);
476
477 got_one++;
478
479 /* IT is possible for players to accumulate a huge amount of
480 * items (especially with some of the bags out there) to
481 * overflow the buffer. IF so, send multiple item commands.
482 */
483 if (sl.length () >= (MAXSOCKBUF - MAXITEMLEN))
484 {
485 pl->contr->ns->send_packet (sl);
486
487 sl.reset ();
488 sl.printf ("item%d ", pl->contr->ns->itemcmd);
489 sl << uint32 (op->count);
490 got_one = 0;
491 }
492 }
493 }
494
495 if (got_one)
496 pl->contr->ns->send_packet (sl);
497 }
498
499 /**
500 * Updates object *op for player *pl.
501 *
502 * flags is a list of values to update
503 * to the client (as defined in newclient.h - might as well use the
504 * same value both places.
505 */
506 void
507 esrv_update_item (int flags, object *pl, object *op)
508 {
509 /* If we have a request to send the player item, skip a few checks. */
510 if (op != pl)
511 {
512 if (!op->client_visible ())
513 return;
514 /* we remove the check for op->env, because in theory, the object
515 * is hopefully in the same place, so the client should preserve
516 * order.
517 */
518 }
519
520 client *ns = pl->contr->ns;
521 if (!ns)
522 return;
523
524 if (!QUERY_FLAG (op, FLAG_CLIENT_SENT))
525 {
526 /* FLAG_CLIENT_SENT is debug only. We are using it to see where
527 * this is happening - we can set a breakpoint here in the debugger
528 * and track back the call.
529 */
530 LOG (llevDebug, "We have not sent item %s (%d)\n", &op->name, op->count);
531 }
532
533 packet sl ("upditem");
534
535 sl << uint8 (flags);
536
537 if (op->head)
538 op = op->head;
539
540 sl << uint32 (op->count);
541
542 if (flags & UPD_LOCATION)
543 sl << uint32 (op->env ? op->env->count : 0);
544
545 if (flags & UPD_FLAGS)
546 sl << uint32 (query_flags (op));
547
548 if (flags & UPD_WEIGHT)
549 {
550 sint32 weight = WEIGHT (op);
551
552 sl << uint32 (QUERY_FLAG (op, FLAG_NO_PICK) ? -1 : weight);
553
554 if (pl == op)
555 ns->last_weight = weight;
556 }
557
558 if (flags & UPD_FACE)
559 {
560 ns->send_face (op->face);
561 ns->flush_fx ();
562 sl << uint32 (op->face);
563 }
564
565 if (flags & UPD_NAME)
566 {
567 int len;
568 const char *item_p;
569 char item_n[MAX_BUF];
570
571 if (!op->custom_name)
572 {
573 strncpy (item_n, query_base_name (op, 0), 127);
574 item_n[127] = 0;
575 len = strlen (item_n);
576 item_p = query_base_name (op, 1);
577 }
578 else
579 {
580 strncpy (item_n, op->custom_name, 127);
581 item_n[127] = 0;
582 len = strlen (item_n);
583 item_p = op->custom_name;
584 }
585
586 strncpy (item_n + len + 1, item_p, 127);
587 item_n[254] = 0;
588 len += strlen (item_n + 1 + len) + 1;
589
590 sl << data8 (item_n, len);
591 }
592
593 if (flags & UPD_ANIM)
594 sl << uint16 (op->animation_id);
595
596 if (flags & UPD_ANIMSPEED)
597 {
598 int anim_speed = 0;
599
600 if (QUERY_FLAG (op, FLAG_ANIMATE))
601 {
602 if (op->anim_speed)
603 anim_speed = op->anim_speed;
604 else
605 {
606 if (fabs (op->speed) < 0.001)
607 anim_speed = 255;
608 else if (fabs (op->speed) >= 1.0)
609 anim_speed = 1;
610 else
611 anim_speed = (int) (1.0 / fabs (op->speed));
612 }
613
614 if (anim_speed > 255)
615 anim_speed = 255;
616 }
617
618 sl << uint8 (anim_speed);
619 }
620
621 if (flags & UPD_NROF)
622 sl << uint32 (op->nrof);
623
624 pl->contr->ns->send_packet (sl);
625 }
626
627 /**
628 * Sends item's info to player.
629 */
630 void
631 esrv_send_item (object *pl, object *op)
632 {
633 if (!pl->contr->ns)
634 return;
635
636 /* If this is not the player object, do some more checks */
637 if (op != pl)
638 {
639 /* We only send 'visibile' objects to the client */
640 if (!op->client_visible ())
641 return;
642
643 /* if the item is on the ground, mark that the look needs to
644 * be updated.
645 */
646 if (!op->env)
647 {
648 pl->contr->ns->floorbox_update ();
649 return;
650 }
651 }
652
653 packet sl;
654
655 sl.printf ("item%d ", pl->contr->ns->itemcmd);
656
657 if (op->head)
658 op = op->head;
659
660 sl << uint32 (op->env ? op->env->count : 0);
661
662 add_object_to_socklist (*pl->contr->ns, sl, op);
663
664 pl->contr->ns->send_packet (sl);
665 SET_FLAG (op, FLAG_CLIENT_SENT);
666 }
667
668 /**
669 * Tells the client to delete an item. Uses the item
670 * command with a -1 location.
671 */
672 void
673 esrv_del_item (player *pl, int tag)
674 {
675 if (!pl->ns)
676 return;
677
678 packet sl ("delitem");
679
680 sl << uint32 (tag);
681
682 pl->ns->send_packet (sl);
683 }
684
685
686 /*******************************************************************************
687 *
688 * Client has requested us to do something with an object.
689 *
690 ******************************************************************************/
691
692 /**
693 * Takes a player and object count (tag) and returns the actual object
694 * pointer, or null if it can't be found.
695 */
696 object *
697 esrv_get_ob_from_count (object *pl, tag_t count)
698 {
699 if (pl->count == count)
700 return pl;
701
702 for (object *op = pl->inv; op; op = op->below)
703 if (op->count == count)
704 return op;
705 else if (op->type == CONTAINER && pl->container == op)
706 for (object *tmp = op->inv; tmp; tmp = tmp->below)
707 if (tmp->count == count)
708 return tmp;
709
710 for (object *op = GET_MAP_OB (pl->map, pl->x, pl->y); op; op = op->above)
711 if (op->head && op->head->count == count)
712 return op;
713 else if (op->count == count)
714 return op;
715 else if (op->type == CONTAINER && pl->container == op)
716 for (object *tmp = op->inv; tmp; tmp = tmp->below)
717 if (tmp->count == count)
718 return tmp;
719
720 #if 0
721 /* If the high bit is set, player examined a pseudo object. */
722 if (count & 0x80000000)
723 return 0;
724 #endif
725
726 return 0;
727 }
728
729 /** Client wants to examine some object. So lets do so. */
730 void
731 ExamineCmd (char *buf, int len, player *pl)
732 {
733 tag_t tag = atoi (buf);
734
735 object *op = esrv_get_ob_from_count (pl->ob, tag);
736
737 if (!op)
738 {
739 LOG (llevDebug, "Player '%s' tried to examine the unknown object (%ld)\n", &pl->ob->name, tag);
740 return;
741 }
742
743 examine (pl->ob, op);
744 }
745
746 /** Client wants to examine some object. So lets do so. */
747 void
748 ExCmd (char *buf, int len, player *pl)
749 {
750 tag_t tag = atoi (buf);
751
752 if (object *op = esrv_get_ob_from_count (pl->ob, tag))
753 {
754 std::string s = op->describe (pl->ob);
755
756 packet sl ("ex");
757 sl << ber32 (tag) << s.c_str ();
758
759 pl->ns->send_packet (sl);
760 }
761 }
762
763 /** Client wants to apply some object. Lets do so. */
764 void
765 ApplyCmd (char *buf, int len, player *pl)
766 {
767 tag_t tag = atoi (buf);
768
769 /* sort of a hack, but if the player saves and the player then manually
770 * applies a savebed (or otherwise tries to do stuff), we run into trouble.
771 */
772 if (QUERY_FLAG (pl->ob, FLAG_REMOVED))
773 return;
774
775 /* If the high bit is set, player applied a pseudo object. */
776 if (tag & 0x80000000)
777 {
778 pl->ns->look_position = tag & 0x7fffffff;
779 pl->ns->floorbox_update ();
780 return;
781 }
782
783 object *op = esrv_get_ob_from_count (pl->ob, tag);
784
785 if (!op)
786 {
787 LOG (llevDebug, "Player '%s' tried to apply the unknown object (%d)\n", &pl->ob->name, tag);
788 return;
789 }
790
791 player_apply (pl->ob, op, 0, 0);
792 }
793
794 /** Client wants to lock some object. Lets do so. */
795 void
796 LockItem (char *data, int len, player *pl)
797 {
798 int flag = data[0];
799 tag_t tag = net_uint32 ((uint8 *)data + 1);
800 object *op = esrv_get_ob_from_count (pl->ob, tag);
801
802 if (!op)
803 {
804 new_draw_info (NDI_UNIQUE, 0, pl->ob, "Could not find object to lock/unlock");
805 return;
806 }
807
808 if (!flag)
809 CLEAR_FLAG (op, FLAG_INV_LOCKED);
810 else
811 SET_FLAG (op, FLAG_INV_LOCKED);
812
813 esrv_update_item (UPD_FLAGS, pl->ob, op);
814 }
815
816 /** Client wants to mark some object. Lets do so. */
817 void
818 MarkItem (char *data, int len, player *pl)
819 {
820 tag_t tag = net_uint32 ((uint8 *)data);
821 object *op = esrv_get_ob_from_count (pl->ob, tag);
822
823 if (!op)
824 {
825 new_draw_info (NDI_UNIQUE, 0, pl->ob, "Could not find object to mark");
826 return;
827 }
828
829 pl->mark = op;
830 new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "Marked item %s", query_name (op));
831 }
832
833 /**
834 * look_at prints items on the specified square.
835 *
836 * [ removed EARTHWALL check and added check for containers inventory.
837 * Tero.Haatanen@lut.fi ]
838 */
839 void
840 look_at (object *op, int dx, int dy)
841 {
842 object *tmp;
843 int flag = 0;
844 sint16 x, y;
845 maptile *m;
846
847 x = op->x + dx;
848 y = op->y + dy;
849
850 if (out_of_map (op->map, x, y))
851 return;
852
853 m = get_map_from_coord (op->map, &x, &y);
854 if (!m)
855 return;
856
857 for (tmp = GET_MAP_OB (m, x, y); tmp && tmp->above; tmp = tmp->above)
858 ;
859
860 for (; tmp; tmp = tmp->below)
861 {
862 if (tmp->invisible && !QUERY_FLAG (op, FLAG_WIZ))
863 continue;
864
865 if (!flag)
866 {
867 if (dx || dy)
868 new_draw_info (NDI_UNIQUE, 0, op, "There you see:");
869 else
870 {
871 clear_win_info (op);
872 new_draw_info (NDI_UNIQUE, 0, op, "You see:");
873 }
874 flag = 1;
875 }
876
877 if (QUERY_FLAG (op, FLAG_WIZ))
878 new_draw_info_format (NDI_UNIQUE, 0, op, "- %s (%d).", query_name (tmp), tmp->count);
879 else
880 new_draw_info_format (NDI_UNIQUE, 0, op, "- %s.", query_name (tmp));
881
882 if (((tmp->inv != NULL || (tmp->head && tmp->head->inv)) &&
883 (tmp->type != CONTAINER && tmp->type != FLESH)) || QUERY_FLAG (op, FLAG_WIZ))
884 inventory (op, tmp->head == NULL ? tmp : tmp->head);
885
886 if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !QUERY_FLAG (op, FLAG_WIZ)) /* don't continue under the floor */
887 break;
888 }
889
890 if (!flag)
891 {
892 if (dx || dy)
893 new_draw_info (NDI_UNIQUE, 0, op, "You see nothing there.");
894 else
895 new_draw_info (NDI_UNIQUE, 0, op, "You see nothing.");
896 }
897 }
898
899 /** Client wants to look at some object. Lets do so. */
900 void
901 LookAt (char *buf, int len, player *pl)
902 {
903 int dx, dy;
904 char *cp;
905
906 dx = atoi (buf);
907 if (!(cp = strchr (buf, ' ')))
908 return;
909
910 dy = atoi (cp);
911 if (fabs (dx) > pl->ns->mapx / 2 || fabs (dy) > pl->ns->mapy / 2)
912 return;
913
914 if (pl->blocked_los[dx + pl->ns->mapx / 2][dy + pl->ns->mapy / 2])
915 return;
916
917 look_at (pl->ob, 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