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/cvs/deliantra/server/socket/item.C
Revision: 1.30
Committed: Sat Jan 6 14:42:31 2007 UTC (17 years, 5 months ago) by pippijn
Content type: text/plain
Branch: MAIN
Changes since 1.29: +1 -0 lines
Log Message:
added some copyrights

File Contents

# Content
1 /*
2 CrossFire, A Multiplayer game for X-windows
3
4 Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
5 Copyright (C) 2002 Mark Wedel & Crossfire Development Team
6 Copyright (C) 1992 Frank Tore Johansen
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21
22 The author 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 containes 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> /* LOOK_OBJ */
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 if (!(ns.faces_sent[head->face->number] & NS_FACESENT_FACE))
270 esrv_send_face (&ns, head->face->number, 0);
271
272 if (QUERY_FLAG (head, FLAG_ANIMATE) && !ns.anims_sent[head->animation_id])
273 esrv_send_animation (&ns, 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->number);
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 /**
332 * Send the look window. Don't need to do animations here
333 * This sends all the faces to the client, not just updates. This is
334 * because object ordering would otherwise be inconsistent.
335 */
336 void
337 esrv_draw_look (object *pl)
338 {
339 object *tmp, *last;
340 int got_one = 0, start_look = 0, end_look = 0;
341 char buf[MAX_BUF];
342
343 if (!pl->contr->ns->update_look)
344 {
345 LOG (llevDebug, "esrv_draw_look called when update_look was not set\n");
346 return;
347 }
348 else
349 pl->contr->ns->update_look = 0;
350
351 if (QUERY_FLAG (pl, FLAG_REMOVED)
352 || !pl->map
353 || pl->map->in_memory != MAP_IN_MEMORY
354 || out_of_map (pl->map, pl->x, pl->y))
355 return;
356
357 for (tmp = GET_MAP_OB (pl->map, pl->x, pl->y); tmp && tmp->above; tmp = tmp->above)
358 ;
359
360 pl->contr->ns->send_packet ("delinv 0");
361
362 packet sl;
363 sl.printf ("item%d ", pl->contr->ns->itemcmd);
364
365 sl << uint32 (0);
366
367 if (!(pl->contr->ns->faces_sent[empty_face->number] & NS_FACESENT_FACE))
368 esrv_send_face (pl->contr->ns, empty_face->number, 0);
369
370 if (pl->contr->ns->look_position)
371 {
372 char buf[80];
373 snprintf (buf, 80, "Apply this to see %d previous items", FLOORBOX_PAGESIZE);
374
375 sl << uint32 (0x80000000 | (pl->contr->ns->look_position - FLOORBOX_PAGESIZE))
376 << uint32 (0)
377 << sint32 (-1)
378 << uint32 (empty_face->number)
379 << data8 (buf)
380 << uint16 (0)
381 << uint8 (0)
382 << uint32 (0);
383
384 if (pl->contr->ns->itemcmd == 2)
385 sl << uint16 (0);
386 }
387
388 for (last = NULL; tmp != last; tmp = tmp->below)
389 {
390 object *head;
391
392 if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !last)
393 {
394 last = tmp->below; /* assumes double floor mode */
395 if (last && QUERY_FLAG (last, FLAG_IS_FLOOR))
396 last = last->below;
397 }
398
399 if (LOOK_OBJ (tmp))
400 {
401 if (++start_look < pl->contr->ns->look_position)
402 continue;
403
404 end_look++;
405
406 if (end_look > FLOORBOX_PAGESIZE)
407 {
408 /* What we basically do is make a 'fake' object - when the user applies it,
409 * we notice the special tag the object has, and act accordingly.
410 */
411 sl << uint32 (0x80000000 | (pl->contr->ns->look_position + FLOORBOX_PAGESIZE))
412 << uint32 (0)
413 << uint32 ((uint32) - 1)
414 << uint32 (empty_face->number)
415 << data8 ("Apply this to see next group of items")
416 << uint16 (0)
417 << uint8 (0)
418 << uint32 (0);
419
420 if (pl->contr->ns->itemcmd == 2)
421 sl << uint16 (0);
422
423 break;
424 }
425
426 if (tmp->head)
427 head = tmp->head;
428 else
429 head = tmp;
430
431 add_object_to_socklist (*pl->contr->ns, sl, head);
432 got_one++;
433
434 if (sl.length () >= (MAXSOCKBUF - MAXITEMLEN))
435 {
436 pl->contr->ns->send_packet (sl);
437
438 sl.reset ();
439 sl.printf ("item%d ", pl->contr->ns->itemcmd);
440 sl << uint32 (0);
441 got_one = 0;
442 }
443 }
444 }
445
446 if (got_one)
447 pl->contr->ns->send_packet (sl);
448
449 }
450
451 /**
452 * Sends whole inventory.
453 */
454 void
455 esrv_send_inventory (object *pl, object *op)
456 {
457 object *tmp;
458 int got_one = 0;
459
460
461 pl->contr->ns->send_packet_printf ("delinv %d", op->count);
462
463 packet sl;
464 sl.printf ("item%d ", pl->contr->ns->itemcmd);
465
466 sl << uint32 (op->count);
467
468 for (tmp = op->inv; tmp; tmp = tmp->below)
469 {
470 object *head;
471
472 if (tmp->head)
473 head = tmp->head;
474 else
475 head = tmp;
476
477 if (LOOK_OBJ (head))
478 {
479 add_object_to_socklist (*pl->contr->ns, sl, head);
480
481 got_one++;
482
483 /* IT is possible for players to accumulate a huge amount of
484 * items (especially with some of the bags out there) to
485 * overflow the buffer. IF so, send multiple item commands.
486 */
487 if (sl.length () >= (MAXSOCKBUF - MAXITEMLEN))
488 {
489 pl->contr->ns->send_packet (sl);
490
491 sl.reset ();
492 sl.printf ("item%d ", pl->contr->ns->itemcmd);
493 sl << uint32 (op->count);
494 got_one = 0;
495 }
496 } /* If LOOK_OBJ() */
497 }
498
499 if (got_one)
500 pl->contr->ns->send_packet (sl);
501 }
502
503 /**
504 * Updates object *op for player *pl.
505 *
506 * flags is a list of values to update
507 * to the client (as defined in newclient.h - might as well use the
508 * same value both places.
509 */
510
511 void
512 esrv_update_item (int flags, object *pl, object *op)
513 {
514 /* If we have a request to send the player item, skip a few checks. */
515 if (op != pl)
516 {
517 if (!LOOK_OBJ (op))
518 return;
519 /* we remove the check for op->env, because in theory, the object
520 * is hopefully in the same place, so the client should preserve
521 * order.
522 */
523 }
524
525 if (!QUERY_FLAG (op, FLAG_CLIENT_SENT))
526 {
527 /* FLAG_CLIENT_SENT is debug only. We are using it to see where
528 * this is happening - we can set a breakpoint here in the debugger
529 * and track back the call.
530 */
531 LOG (llevDebug, "We have not sent item %s (%d)\n", &op->name, op->count);
532 }
533
534 packet sl ("upditem");
535
536 sl << uint8 (flags);
537
538 if (op->head)
539 op = op->head;
540
541 sl << uint32 (op->count);
542
543 if (flags & UPD_LOCATION)
544 sl << uint32 (op->env ? op->env->count : 0);
545
546 if (flags & UPD_FLAGS)
547 sl << uint32 (query_flags (op));
548
549 if (flags & UPD_WEIGHT)
550 {
551 sint32 weight = WEIGHT (op);
552
553 sl << uint32 (QUERY_FLAG (op, FLAG_NO_PICK) ? -1 : weight);
554
555 if (pl == op)
556 op->contr->last_weight = weight;
557 }
558
559 if (flags & UPD_FACE)
560 {
561 if (!(pl->contr->ns->faces_sent[op->face->number] & NS_FACESENT_FACE))
562 esrv_send_face (pl->contr->ns, op->face->number, 0);
563
564 sl << uint32 (op->face->number);
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 this is not the player object, do some more checks */
636 if (op != pl)
637 {
638 /* We only send 'visibile' objects to the client */
639 if (!LOOK_OBJ (op))
640 return;
641 /* if the item is on the ground, mark that the look needs to
642 * be updated.
643 */
644 if (!op->env)
645 {
646 pl->contr->ns->floorbox_update ();
647 return;
648 }
649 }
650
651 packet sl;
652
653 sl.printf ("item%d ", pl->contr->ns->itemcmd);
654
655 if (op->head)
656 op = op->head;
657
658 sl << uint32 (op->env ? op->env->count : 0);
659
660 add_object_to_socklist (*pl->contr->ns, sl, op);
661
662 pl->contr->ns->send_packet (sl);
663 SET_FLAG (op, FLAG_CLIENT_SENT);
664 }
665
666 /**
667 * Tells the client to delete an item. Uses the item
668 * command with a -1 location.
669 */
670
671 void
672 esrv_del_item (player *pl, int tag)
673 {
674 packet sl ("delitem");
675
676 sl << uint32 (tag);
677
678 pl->ns->send_packet (sl);
679 }
680
681
682 /*******************************************************************************
683 *
684 * Client has requested us to do something with an object.
685 *
686 ******************************************************************************/
687
688 /**
689 * Takes a player and object count (tag) and returns the actual object
690 * pointer, or null if it can't be found.
691 */
692
693 object *
694 esrv_get_ob_from_count (object *pl, tag_t count)
695 {
696 object *op, *tmp;
697
698 if (pl->count == count)
699 return pl;
700
701 for (op = pl->inv; op; op = op->below)
702 if (op->count == count)
703 return op;
704 else if (op->type == CONTAINER && pl->container == op)
705 for (tmp = op->inv; tmp; tmp = tmp->below)
706 if (tmp->count == count)
707 return tmp;
708
709 for (op = GET_MAP_OB (pl->map, pl->x, pl->y); op; op = op->above)
710 if (op->head && op->head->count == count)
711 return op;
712 else if (op->count == count)
713 return op;
714 else if (op->type == CONTAINER && pl->container == op)
715 for (tmp = op->inv; tmp; tmp = tmp->below)
716 if (tmp->count == count)
717 return tmp;
718
719 return 0;
720 }
721
722
723 /** Client wants to examine some object. So lets do so. */
724 void
725 ExamineCmd (char *buf, int len, player *pl)
726 {
727 tag_t tag = atoi (buf);
728
729 /* If the high bit is set, player examined a pseudo object. */
730 if (tag & 0x80000000)
731 return;
732
733 object *op = esrv_get_ob_from_count (pl->ob, tag);
734
735 if (!op)
736 {
737 LOG (llevDebug, "Player '%s' tried to examine the unknown object (%ld)\n", &pl->ob->name, tag);
738 return;
739 }
740
741 examine (pl->ob, op);
742 }
743
744 /** Client wants to apply some object. Lets do so. */
745 void
746 ApplyCmd (char *buf, int len, player *pl)
747 {
748 tag_t tag = atoi (buf);
749
750 /* sort of a hack, but if the player saves and the player then manually
751 * applies a savebed (or otherwise tries to do stuff), we run into trouble.
752 */
753 if (QUERY_FLAG (pl->ob, FLAG_REMOVED))
754 return;
755
756 /* If the high bit is set, player applied a pseudo object. */
757 if (tag & 0x80000000)
758 {
759 pl->ns->look_position = tag & 0x7fffffff;
760 pl->ns->floorbox_update ();
761 return;
762 }
763
764 object *op = esrv_get_ob_from_count (pl->ob, tag);
765
766 if (!op)
767 {
768 LOG (llevDebug, "Player '%s' tried to apply the unknown object (%d)\n", &pl->ob->name, tag);
769 return;
770 }
771
772 player_apply (pl->ob, op, 0, 0);
773 }
774
775 /** Client wants to lock some object. Lets do so. */
776 void
777 LockItem (char *data, int len, player *pl)
778 {
779 int flag = data[0];
780 tag_t tag = net_uint32 ((uint8 *)data + 1);
781 object *op = esrv_get_ob_from_count (pl->ob, tag);
782
783 if (!op)
784 {
785 new_draw_info (NDI_UNIQUE, 0, pl->ob, "Could not find object to lock/unlock");
786 return;
787 }
788
789 if (!flag)
790 CLEAR_FLAG (op, FLAG_INV_LOCKED);
791 else
792 SET_FLAG (op, FLAG_INV_LOCKED);
793
794 esrv_update_item (UPD_FLAGS, pl->ob, op);
795 }
796
797 /** Client wants to mark some object. Lets do so. */
798 void
799 MarkItem (char *data, int len, player *pl)
800 {
801 tag_t tag = net_uint32 ((uint8 *)data);
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 mark");
807 return;
808 }
809
810 pl->mark = op;
811 new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "Marked item %s", query_name (op));
812 }
813
814 /**
815 * look_at prints items on the specified square.
816 *
817 * [ removed EARTHWALL check and added check for containers inventory.
818 * Tero.Haatanen@lut.fi ]
819 */
820 void
821 look_at (object *op, int dx, int dy)
822 {
823 object *tmp;
824 int flag = 0;
825 sint16 x, y;
826 maptile *m;
827
828 x = op->x + dx;
829 y = op->y + dy;
830
831 if (out_of_map (op->map, x, y))
832 return;
833
834 m = get_map_from_coord (op->map, &x, &y);
835 if (!m)
836 return;
837
838 for (tmp = GET_MAP_OB (m, x, y); tmp != NULL && tmp->above != NULL; tmp = tmp->above);
839
840 for (; tmp != NULL; tmp = tmp->below)
841 {
842 if (tmp->invisible && !QUERY_FLAG (op, FLAG_WIZ))
843 continue;
844
845 if (!flag)
846 {
847 if (dx || dy)
848 new_draw_info (NDI_UNIQUE, 0, op, "There you see:");
849 else
850 {
851 clear_win_info (op);
852 new_draw_info (NDI_UNIQUE, 0, op, "You see:");
853 }
854 flag = 1;
855 }
856
857 if (QUERY_FLAG (op, FLAG_WIZ))
858 new_draw_info_format (NDI_UNIQUE, 0, op, "- %s (%d).", query_name (tmp), tmp->count);
859 else
860 new_draw_info_format (NDI_UNIQUE, 0, op, "- %s.", query_name (tmp));
861
862 if (((tmp->inv != NULL || (tmp->head && tmp->head->inv)) &&
863 (tmp->type != CONTAINER && tmp->type != FLESH)) || QUERY_FLAG (op, FLAG_WIZ))
864 inventory (op, tmp->head == NULL ? tmp : tmp->head);
865
866 if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !QUERY_FLAG (op, FLAG_WIZ)) /* don't continue under the floor */
867 break;
868 }
869
870 if (!flag)
871 {
872 if (dx || dy)
873 new_draw_info (NDI_UNIQUE, 0, op, "You see nothing there.");
874 else
875 new_draw_info (NDI_UNIQUE, 0, op, "You see nothing.");
876 }
877 }
878
879
880
881 /** Client wants to look at some object. Lets do so. */
882 void
883 LookAt (char *buf, int len, player *pl)
884 {
885 int dx, dy;
886 char *cp;
887
888 dx = atoi (buf);
889 if (!(cp = strchr (buf, ' ')))
890 {
891 return;
892 }
893 dy = atoi (cp);
894
895 if (FABS (dx) > pl->ns->mapx / 2 || FABS (dy) > pl->ns->mapy / 2)
896 return;
897
898 if (pl->blocked_los[dx + pl->ns->mapx / 2][dy + pl->ns->mapy / 2])
899 return;
900
901 look_at (pl->ob, dx, dy);
902 }
903
904 /** Move an object to a new location */
905 void
906 esrv_move_object (object *pl, tag_t to, tag_t tag, long nrof)
907 {
908 object *op, *env;
909
910 op = esrv_get_ob_from_count (pl, tag);
911 if (!op)
912 {
913 LOG (llevDebug, "Player '%s' tried to move an unknown object (%ld)\n", &pl->name, tag);
914 return;
915 }
916
917 if (!to)
918 { /* drop it to the ground */
919 if (op->map && !op->env)
920 return;
921
922 /* If it is an active container, then we should drop all objects
923 * in the container and not the container itself.
924 */
925 if (op->inv && QUERY_FLAG (op, FLAG_APPLIED))
926 {
927 object *current, *next;
928
929 for (current = op->inv; current != NULL; current = next)
930 {
931 next = current->below;
932 drop_object (pl, current, 0);
933 }
934
935 esrv_update_item (UPD_WEIGHT, pl, op);
936 }
937 else
938 drop_object (pl, op, nrof);
939
940 return;
941 }
942 else if (to == pl->count)
943 { /* pick it up to the inventory */
944 /* return if player has already picked it up */
945 if (op->env == pl)
946 return;
947
948 pl->contr->count = nrof;
949 pick_up (pl, op);
950 return;
951 }
952
953 env = esrv_get_ob_from_count (pl, to);
954 if (!env)
955 {
956 LOG (llevDebug, "Player '%s' tried to move object to the unknown location (%d)\n", &pl->name, to);
957 return;
958 }
959
960 /* put_object_in_sack presumes that necessary sanity checking
961 * has already been done (eg, it can be picked up and fits in
962 * in a sack, so check for those things. We should also check
963 * an make sure env is in fact a container for that matter.
964 */
965 if (env->type == CONTAINER && can_pick (pl, op) && sack_can_hold (pl, env, op, nrof))
966 put_object_in_sack (pl, env, op, nrof);
967 }
968