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/cvs/deliantra/server/socket/item.C
Revision: 1.32
Committed: Tue Jan 9 21:32:43 2007 UTC (17 years, 4 months ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.31: +33 -38 lines
Log Message:
- added $cf::WAIT_FOR_TICK*
- tuned map-scheduler and player-scheduler
- added $op->inv_recursive
- added objects_size/objects($index) and actives_size/actives($index)
  for access to the object and actives vector.
- more robust player loader
- removed _perl_data attribute support
- SIGINT/TERM/HUP are now safe as they are handled synchronously.
- replaced LOOK_OBJ by client_visible
- cleanups

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 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 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 * 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 char buf[MAX_BUF];
340
341 if (!pl->contr->ns->update_look)
342 {
343 LOG (llevDebug, "esrv_draw_look called when update_look was not set\n");
344 return;
345 }
346 else
347 pl->contr->ns->update_look = 0;
348
349 if (QUERY_FLAG (pl, FLAG_REMOVED)
350 || !pl->map
351 || pl->map->in_memory != MAP_IN_MEMORY
352 || out_of_map (pl->map, pl->x, pl->y))
353 return;
354
355 pl->contr->ns->send_packet ("delinv 0");
356
357 packet sl;
358 sl.printf ("item%d ", pl->contr->ns->itemcmd);
359
360 sl << uint32 (0);
361
362 if (!(pl->contr->ns->faces_sent[empty_face->number] & NS_FACESENT_FACE))
363 esrv_send_face (pl->contr->ns, empty_face->number, 0);
364
365 if (pl->contr->ns->look_position)
366 {
367 char buf[80];
368 snprintf (buf, 80, "Apply this to see %d previous items", FLOORBOX_PAGESIZE);
369
370 sl << uint32 (0x80000000 | (pl->contr->ns->look_position - FLOORBOX_PAGESIZE))
371 << uint32 (0)
372 << sint32 (-1)
373 << uint32 (empty_face->number)
374 << data8 (buf)
375 << uint16 (0)
376 << uint8 (0)
377 << uint32 (0);
378
379 if (pl->contr->ns->itemcmd == 2)
380 sl << uint16 (0);
381 }
382
383 object *tmp = pl->ms ().top;
384 for (object *last = 0; tmp != last; tmp = tmp->below)
385 {
386 object *head;
387
388 if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !last)
389 {
390 last = tmp->below; /* assumes double floor mode */
391 if (last && QUERY_FLAG (last, FLAG_IS_FLOOR))
392 last = last->below;
393 }
394
395 if (tmp->client_visible ())
396 {
397 if (++start_look < pl->contr->ns->look_position)
398 continue;
399
400 end_look++;
401
402 if (end_look > FLOORBOX_PAGESIZE)
403 {
404 /* What we basically do is make a 'fake' object - when the user applies it,
405 * we notice the special tag the object has, and act accordingly.
406 */
407 sl << uint32 (0x80000000 | (pl->contr->ns->look_position + FLOORBOX_PAGESIZE))
408 << uint32 (0)
409 << uint32 ((uint32) - 1)
410 << uint32 (empty_face->number)
411 << data8 ("Apply this to see next group of items")
412 << uint16 (0)
413 << uint8 (0)
414 << uint32 (0);
415
416 if (pl->contr->ns->itemcmd == 2)
417 sl << uint16 (0);
418
419 break;
420 }
421
422 if (tmp->head)
423 head = tmp->head;
424 else
425 head = tmp;
426
427 add_object_to_socklist (*pl->contr->ns, sl, head);
428 got_one++;
429
430 if (sl.length () >= (MAXSOCKBUF - MAXITEMLEN))
431 {
432 pl->contr->ns->send_packet (sl);
433
434 sl.reset ();
435 sl.printf ("item%d ", pl->contr->ns->itemcmd);
436 sl << uint32 (0);
437 got_one = 0;
438 }
439 }
440 }
441
442 if (got_one)
443 pl->contr->ns->send_packet (sl);
444
445 }
446
447 /**
448 * Sends whole inventory.
449 */
450 void
451 esrv_send_inventory (object *pl, object *op)
452 {
453 int got_one = 0;
454
455 pl->contr->ns->send_packet_printf ("delinv %d", op->count);
456
457 packet sl;
458 sl.printf ("item%d ", pl->contr->ns->itemcmd);
459
460 sl << uint32 (op->count);
461
462 for (object *tmp = op->inv; tmp; tmp = tmp->below)
463 {
464 object *head;
465
466 if (tmp->head)
467 head = tmp->head;
468 else
469 head = tmp;
470
471 if (head->client_visible ())
472 {
473 add_object_to_socklist (*pl->contr->ns, sl, head);
474
475 got_one++;
476
477 /* IT is possible for players to accumulate a huge amount of
478 * items (especially with some of the bags out there) to
479 * overflow the buffer. IF so, send multiple item commands.
480 */
481 if (sl.length () >= (MAXSOCKBUF - MAXITEMLEN))
482 {
483 pl->contr->ns->send_packet (sl);
484
485 sl.reset ();
486 sl.printf ("item%d ", pl->contr->ns->itemcmd);
487 sl << uint32 (op->count);
488 got_one = 0;
489 }
490 }
491 }
492
493 if (got_one)
494 pl->contr->ns->send_packet (sl);
495 }
496
497 /**
498 * Updates object *op for player *pl.
499 *
500 * flags is a list of values to update
501 * to the client (as defined in newclient.h - might as well use the
502 * same value both places.
503 */
504
505 void
506 esrv_update_item (int flags, object *pl, object *op)
507 {
508 /* If we have a request to send the player item, skip a few checks. */
509 if (op != pl)
510 {
511 if (!op->client_visible ())
512 return;
513 /* we remove the check for op->env, because in theory, the object
514 * is hopefully in the same place, so the client should preserve
515 * order.
516 */
517 }
518
519 client *ns = pl->contr->ns;
520 if (!ns)
521 return;
522
523 if (!QUERY_FLAG (op, FLAG_CLIENT_SENT))
524 {
525 /* FLAG_CLIENT_SENT is debug only. We are using it to see where
526 * this is happening - we can set a breakpoint here in the debugger
527 * and track back the call.
528 */
529 LOG (llevDebug, "We have not sent item %s (%d)\n", &op->name, op->count);
530 }
531
532 packet sl ("upditem");
533
534 sl << uint8 (flags);
535
536 if (op->head)
537 op = op->head;
538
539 sl << uint32 (op->count);
540
541 if (flags & UPD_LOCATION)
542 sl << uint32 (op->env ? op->env->count : 0);
543
544 if (flags & UPD_FLAGS)
545 sl << uint32 (query_flags (op));
546
547 if (flags & UPD_WEIGHT)
548 {
549 sint32 weight = WEIGHT (op);
550
551 sl << uint32 (QUERY_FLAG (op, FLAG_NO_PICK) ? -1 : weight);
552
553 if (pl == op)
554 ns->last_weight = weight;
555 }
556
557 if (flags & UPD_FACE)
558 {
559 if (!(ns->faces_sent[op->face->number] & NS_FACESENT_FACE))
560 esrv_send_face (ns, op->face->number, 0);
561
562 sl << uint32 (op->face->number);
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 this is not the player object, do some more checks */
634 if (op != pl)
635 {
636 /* We only send 'visibile' objects to the client */
637 if (!op->client_visible ())
638 return;
639
640 /* if the item is on the ground, mark that the look needs to
641 * be updated.
642 */
643 if (!op->env)
644 {
645 pl->contr->ns->floorbox_update ();
646 return;
647 }
648 }
649
650 packet sl;
651
652 sl.printf ("item%d ", pl->contr->ns->itemcmd);
653
654 if (op->head)
655 op = op->head;
656
657 sl << uint32 (op->env ? op->env->count : 0);
658
659 add_object_to_socklist (*pl->contr->ns, sl, op);
660
661 pl->contr->ns->send_packet (sl);
662 SET_FLAG (op, FLAG_CLIENT_SENT);
663 }
664
665 /**
666 * Tells the client to delete an item. Uses the item
667 * command with a -1 location.
668 */
669
670 void
671 esrv_del_item (player *pl, int tag)
672 {
673 packet sl ("delitem");
674
675 sl << uint32 (tag);
676
677 pl->ns->send_packet (sl);
678 }
679
680
681 /*******************************************************************************
682 *
683 * Client has requested us to do something with an object.
684 *
685 ******************************************************************************/
686
687 /**
688 * Takes a player and object count (tag) and returns the actual object
689 * pointer, or null if it can't be found.
690 */
691
692 object *
693 esrv_get_ob_from_count (object *pl, tag_t count)
694 {
695 object *op, *tmp;
696
697 if (pl->count == count)
698 return pl;
699
700 for (op = pl->inv; op; op = op->below)
701 if (op->count == count)
702 return op;
703 else if (op->type == CONTAINER && pl->container == op)
704 for (tmp = op->inv; tmp; tmp = tmp->below)
705 if (tmp->count == count)
706 return tmp;
707
708 for (op = GET_MAP_OB (pl->map, pl->x, pl->y); op; op = op->above)
709 if (op->head && op->head->count == count)
710 return op;
711 else if (op->count == count)
712 return op;
713 else if (op->type == CONTAINER && pl->container == op)
714 for (tmp = op->inv; tmp; tmp = tmp->below)
715 if (tmp->count == count)
716 return tmp;
717
718 return 0;
719 }
720
721
722 /** Client wants to examine some object. So lets do so. */
723 void
724 ExamineCmd (char *buf, int len, player *pl)
725 {
726 tag_t tag = atoi (buf);
727
728 /* If the high bit is set, player examined a pseudo object. */
729 if (tag & 0x80000000)
730 return;
731
732 object *op = esrv_get_ob_from_count (pl->ob, tag);
733
734 if (!op)
735 {
736 LOG (llevDebug, "Player '%s' tried to examine the unknown object (%ld)\n", &pl->ob->name, tag);
737 return;
738 }
739
740 examine (pl->ob, op);
741 }
742
743 /** Client wants to apply some object. Lets do so. */
744 void
745 ApplyCmd (char *buf, int len, player *pl)
746 {
747 tag_t tag = atoi (buf);
748
749 /* sort of a hack, but if the player saves and the player then manually
750 * applies a savebed (or otherwise tries to do stuff), we run into trouble.
751 */
752 if (QUERY_FLAG (pl->ob, FLAG_REMOVED))
753 return;
754
755 /* If the high bit is set, player applied a pseudo object. */
756 if (tag & 0x80000000)
757 {
758 pl->ns->look_position = tag & 0x7fffffff;
759 pl->ns->floorbox_update ();
760 return;
761 }
762
763 object *op = esrv_get_ob_from_count (pl->ob, tag);
764
765 if (!op)
766 {
767 LOG (llevDebug, "Player '%s' tried to apply the unknown object (%d)\n", &pl->ob->name, tag);
768 return;
769 }
770
771 player_apply (pl->ob, op, 0, 0);
772 }
773
774 /** Client wants to lock some object. Lets do so. */
775 void
776 LockItem (char *data, int len, player *pl)
777 {
778 int flag = data[0];
779 tag_t tag = net_uint32 ((uint8 *)data + 1);
780 object *op = esrv_get_ob_from_count (pl->ob, tag);
781
782 if (!op)
783 {
784 new_draw_info (NDI_UNIQUE, 0, pl->ob, "Could not find object to lock/unlock");
785 return;
786 }
787
788 if (!flag)
789 CLEAR_FLAG (op, FLAG_INV_LOCKED);
790 else
791 SET_FLAG (op, FLAG_INV_LOCKED);
792
793 esrv_update_item (UPD_FLAGS, pl->ob, op);
794 }
795
796 /** Client wants to mark some object. Lets do so. */
797 void
798 MarkItem (char *data, int len, player *pl)
799 {
800 tag_t tag = net_uint32 ((uint8 *)data);
801 object *op = esrv_get_ob_from_count (pl->ob, tag);
802
803 if (!op)
804 {
805 new_draw_info (NDI_UNIQUE, 0, pl->ob, "Could not find object to mark");
806 return;
807 }
808
809 pl->mark = op;
810 new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "Marked item %s", query_name (op));
811 }
812
813 /**
814 * look_at prints items on the specified square.
815 *
816 * [ removed EARTHWALL check and added check for containers inventory.
817 * Tero.Haatanen@lut.fi ]
818 */
819 void
820 look_at (object *op, int dx, int dy)
821 {
822 object *tmp;
823 int flag = 0;
824 sint16 x, y;
825 maptile *m;
826
827 x = op->x + dx;
828 y = op->y + dy;
829
830 if (out_of_map (op->map, x, y))
831 return;
832
833 m = get_map_from_coord (op->map, &x, &y);
834 if (!m)
835 return;
836
837 for (tmp = GET_MAP_OB (m, x, y); tmp != NULL && tmp->above != NULL; tmp = tmp->above);
838
839 for (; tmp != NULL; tmp = tmp->below)
840 {
841 if (tmp->invisible && !QUERY_FLAG (op, FLAG_WIZ))
842 continue;
843
844 if (!flag)
845 {
846 if (dx || dy)
847 new_draw_info (NDI_UNIQUE, 0, op, "There you see:");
848 else
849 {
850 clear_win_info (op);
851 new_draw_info (NDI_UNIQUE, 0, op, "You see:");
852 }
853 flag = 1;
854 }
855
856 if (QUERY_FLAG (op, FLAG_WIZ))
857 new_draw_info_format (NDI_UNIQUE, 0, op, "- %s (%d).", query_name (tmp), tmp->count);
858 else
859 new_draw_info_format (NDI_UNIQUE, 0, op, "- %s.", query_name (tmp));
860
861 if (((tmp->inv != NULL || (tmp->head && tmp->head->inv)) &&
862 (tmp->type != CONTAINER && tmp->type != FLESH)) || QUERY_FLAG (op, FLAG_WIZ))
863 inventory (op, tmp->head == NULL ? tmp : tmp->head);
864
865 if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !QUERY_FLAG (op, FLAG_WIZ)) /* don't continue under the floor */
866 break;
867 }
868
869 if (!flag)
870 {
871 if (dx || dy)
872 new_draw_info (NDI_UNIQUE, 0, op, "You see nothing there.");
873 else
874 new_draw_info (NDI_UNIQUE, 0, op, "You see nothing.");
875 }
876 }
877
878
879
880 /** Client wants to look at some object. Lets do so. */
881 void
882 LookAt (char *buf, int len, player *pl)
883 {
884 int dx, dy;
885 char *cp;
886
887 dx = atoi (buf);
888 if (!(cp = strchr (buf, ' ')))
889 {
890 return;
891 }
892 dy = atoi (cp);
893
894 if (FABS (dx) > pl->ns->mapx / 2 || FABS (dy) > pl->ns->mapy / 2)
895 return;
896
897 if (pl->blocked_los[dx + pl->ns->mapx / 2][dy + pl->ns->mapy / 2])
898 return;
899
900 look_at (pl->ob, dx, dy);
901 }
902
903 /** Move an object to a new location */
904 void
905 esrv_move_object (object *pl, tag_t to, tag_t tag, long nrof)
906 {
907 object *op, *env;
908
909 op = esrv_get_ob_from_count (pl, tag);
910 if (!op)
911 {
912 LOG (llevDebug, "Player '%s' tried to move an unknown object (%ld)\n", &pl->name, tag);
913 return;
914 }
915
916 if (!to)
917 { /* drop it to the ground */
918 if (op->map && !op->env)
919 return;
920
921 /* If it is an active container, then we should drop all objects
922 * in the container and not the container itself.
923 */
924 if (op->inv && QUERY_FLAG (op, FLAG_APPLIED))
925 {
926 object *current, *next;
927
928 for (current = op->inv; current != NULL; current = next)
929 {
930 next = current->below;
931 drop_object (pl, current, 0);
932 }
933
934 esrv_update_item (UPD_WEIGHT, pl, op);
935 }
936 else
937 drop_object (pl, op, nrof);
938
939 return;
940 }
941 else if (to == pl->count)
942 { /* pick it up to the inventory */
943 /* return if player has already picked it up */
944 if (op->env == pl)
945 return;
946
947 pl->contr->count = nrof;
948 pick_up (pl, op);
949 return;
950 }
951
952 env = esrv_get_ob_from_count (pl, to);
953 if (!env)
954 {
955 LOG (llevDebug, "Player '%s' tried to move object to the unknown location (%d)\n", &pl->name, to);
956 return;
957 }
958
959 /* put_object_in_sack presumes that necessary sanity checking
960 * has already been done (eg, it can be picked up and fits in
961 * in a sack, so check for those things. We should also check
962 * an make sure env is in fact a container for that matter.
963 */
964 if (env->type == CONTAINER && can_pick (pl, op) && sack_can_hold (pl, env, op, nrof))
965 put_object_in_sack (pl, env, op, nrof);
966 }
967