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/cvs/deliantra/server/socket/item.C
Revision: 1.5
Committed: Sun Sep 10 13:43:33 2006 UTC (17 years, 9 months ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.4: +632 -542 lines
Log Message:
indent

File Contents

# Content
1
2 /*
3 * static char *rcsid_item_c =
4 * "$Id: item.C,v 1.4 2006-09-03 00:18:43 root Exp $";
5 */
6
7 /*
8 CrossFire, A Multiplayer game for X-windows
9
10 Copyright (C) 2002 Mark Wedel & Crossfire Development Team
11 Copyright (C) 1992 Frank Tore Johansen
12
13 This program is free software; you can redistribute it and/or modify
14 it under the terms of the GNU General Public License as published by
15 the Free Software Foundation; either version 2 of the License, or
16 (at your option) any later version.
17
18 This program is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details.
22
23 You should have received a copy of the GNU General Public License
24 along with this program; if not, write to the Free Software
25 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26
27 The author can be reached via e-mail to crossfire-devel@real-time.com
28 */
29
30 /**
31 * \file
32 * Client/server logic.
33 *
34 * \date 2003-12-02
35 *
36 * This containes item logic for client/server. It doesn't contain
37 * the actual commands that send the data, but does contain
38 * the logic for what items should be sent.
39 */
40
41
42 #include <global.h>
43 #include <object.h> /* LOOK_OBJ */
44 #include <newclient.h>
45 #include <newserver.h>
46 #include <sproto.h>
47
48 /** This is the maximum number of bytes we expect any one item to take up */
49 #define MAXITEMLEN 300
50
51 /*******************************************************************************
52 *
53 * Functions related to sending object data to the client.
54 *
55 ******************************************************************************/
56
57 /**
58 * Adds string to socklist.
59 *
60 * This is a simple function that we use a lot here. It basically
61 * adds the specified buffer into the socklist, but prepends a
62 * single byte in length. If the data is longer than that byte, it is
63 * truncated approprately.
64 */
65 inline void
66 add_stringlen_to_sockbuf (const char *buf, SockList * sl)
67 {
68 int len;
69
70 len = strlen (buf);
71 if (len > 255)
72 len = 255;
73 SockList_AddChar (sl, (char) len);
74 strncpy ((char *) sl->buf + sl->len, buf, len);
75 sl->len += len;
76 }
77
78 /**
79 * This is a similar to query_name, but returns flags
80 * to be sended to client.
81 */
82 unsigned int
83 query_flags (object *op)
84 {
85 unsigned int flags = 0;
86
87 if (QUERY_FLAG (op, FLAG_APPLIED))
88 {
89 switch (op->type)
90 {
91 case BOW:
92 case WAND:
93 case ROD:
94 case HORN:
95 flags = a_readied;
96 break;
97 case WEAPON:
98 flags = a_wielded;
99 break;
100 case SKILL:
101 case ARMOUR:
102 case HELMET:
103 case SHIELD:
104 case RING:
105 case BOOTS:
106 case GLOVES:
107 case AMULET:
108 case GIRDLE:
109 case BRACERS:
110 case CLOAK:
111 flags = a_worn;
112 break;
113 case CONTAINER:
114 flags = a_active;
115 break;
116 default:
117 flags = a_applied;
118 break;
119 }
120 }
121 if (op->type == CONTAINER && ((op->env && op->env->container == op) || (!op->env && QUERY_FLAG (op, FLAG_APPLIED))))
122 flags |= F_OPEN;
123
124 if (QUERY_FLAG (op, FLAG_KNOWN_CURSED))
125 {
126 if (QUERY_FLAG (op, FLAG_DAMNED))
127 flags |= F_DAMNED;
128 else if (QUERY_FLAG (op, FLAG_CURSED))
129 flags |= F_CURSED;
130 }
131 if (QUERY_FLAG (op, FLAG_KNOWN_MAGICAL) && !QUERY_FLAG (op, FLAG_IDENTIFIED))
132 flags |= F_MAGIC;
133 if (QUERY_FLAG (op, FLAG_UNPAID))
134 flags |= F_UNPAID;
135 if (QUERY_FLAG (op, FLAG_INV_LOCKED))
136 flags |= F_LOCKED;
137
138 return flags;
139 }
140
141 /* Used in the send_look to put object head into SockList
142 * sl for socket ns. Need socket to know if we need to send
143 * animation of face to the client.
144 */
145 static void
146 add_object_to_socklist (NewSocket * ns, SockList * sl, object *head)
147 {
148 int flags, len, anim_speed;
149 char item_n[MAX_BUF];
150 const char *item_p;
151
152 flags = query_flags (head);
153 if (QUERY_FLAG (head, FLAG_NO_PICK))
154 flags |= F_NOPICK;
155
156 if (!(ns->faces_sent[head->face->number] & NS_FACESENT_FACE))
157 esrv_send_face (ns, head->face->number, 0);
158
159 if (QUERY_FLAG (head, FLAG_ANIMATE) && !ns->anims_sent[head->animation_id])
160 esrv_send_animation (ns, head->animation_id);
161
162 SockList_AddInt (sl, head->count);
163 SockList_AddInt (sl, flags);
164 SockList_AddInt (sl, QUERY_FLAG (head, FLAG_NO_PICK) ? -1 : WEIGHT (head));
165 SockList_AddInt (sl, head->face->number);
166
167 if (!head->custom_name)
168 {
169 strncpy (item_n, query_base_name (head, 0), 127);
170 item_n[127] = 0;
171 len = strlen (item_n);
172 item_p = query_base_name (head, 1);
173 }
174 else
175 {
176 strncpy (item_n, head->custom_name, 127);
177 item_n[127] = 0;
178 len = strlen (item_n);
179 item_p = head->custom_name;
180 }
181 strncpy (item_n + len + 1, item_p, 127);
182 item_n[254] = 0;
183 len += strlen (item_n + 1 + len) + 1;
184 SockList_AddChar (sl, (char) len);
185 memcpy (sl->buf + sl->len, item_n, len);
186 sl->len += len;
187
188 SockList_AddShort (sl, head->animation_id);
189 anim_speed = 0;
190 if (QUERY_FLAG (head, FLAG_ANIMATE))
191 {
192 if (head->anim_speed)
193 anim_speed = head->anim_speed;
194 else
195 {
196 if (FABS (head->speed) < 0.001)
197 anim_speed = 255;
198 else if (FABS (head->speed) >= 1.0)
199 anim_speed = 1;
200 else
201 anim_speed = (int) (1.0 / FABS (head->speed));
202 }
203 if (anim_speed > 255)
204 anim_speed = 255;
205 }
206 SockList_AddChar (sl, (char) anim_speed);
207 SockList_AddInt (sl, head->nrof);
208
209 if (ns->itemcmd == 2)
210 SockList_AddShort (sl, head->client_type);
211
212 SET_FLAG (head, FLAG_CLIENT_SENT);
213 }
214
215
216 /**
217 * Send the look window. Don't need to do animations here
218 * This sends all the faces to the client, not just updates. This is
219 * because object ordering would otherwise be inconsistent
220 */
221
222 void
223 esrv_draw_look (object *pl)
224 {
225 object *tmp, *last;
226 int got_one = 0, start_look = 0, end_look = 0;
227 SockList sl;
228 char buf[MAX_BUF];
229
230 if (!pl->contr->socket.update_look)
231 {
232 LOG (llevDebug, "esrv_draw_look called when update_look was not set\n");
233 return;
234 }
235 else
236 {
237 pl->contr->socket.update_look = 0;
238 }
239
240 if (QUERY_FLAG (pl, FLAG_REMOVED) || pl->map == NULL || pl->map->in_memory != MAP_IN_MEMORY || out_of_map (pl->map, pl->x, pl->y))
241 return;
242
243 for (tmp = get_map_ob (pl->map, pl->x, pl->y); tmp && tmp->above; tmp = tmp->above);
244
245 sl.buf = (unsigned char *) malloc (MAXSOCKBUF);
246
247 Write_String_To_Socket (&pl->contr->socket, "delinv 0", strlen ("delinv 0"));
248 sprintf ((char *) sl.buf, "item%d ", pl->contr->socket.itemcmd);
249 sl.len = strlen ((char *) sl.buf);
250
251 SockList_AddInt (&sl, 0);
252
253 if (!(pl->contr->socket.faces_sent[empty_face->number] & NS_FACESENT_FACE))
254 esrv_send_face (&pl->contr->socket, empty_face->number, 0);
255
256 if (pl->contr->socket.look_position)
257 {
258 SockList_AddInt (&sl, 0x80000000 | (pl->contr->socket.look_position - NUM_LOOK_OBJECTS));
259 SockList_AddInt (&sl, 0);
260 SockList_AddInt (&sl, (uint32) - 1);
261 SockList_AddInt (&sl, empty_face->number);
262 sprintf (buf, "Click here to see %d previous items", NUM_LOOK_OBJECTS);
263 add_stringlen_to_sockbuf (buf, &sl);
264 SockList_AddShort (&sl, 0);
265 SockList_AddChar (&sl, 0);
266 SockList_AddInt (&sl, 0);
267 if (pl->contr->socket.itemcmd == 2)
268 SockList_AddShort (&sl, 0);
269 }
270
271 for (last = NULL; tmp != last; tmp = tmp->below)
272 {
273 object *head;
274
275 if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !last)
276 {
277 last = tmp->below; /* assumes double floor mode */
278 if (last && QUERY_FLAG (last, FLAG_IS_FLOOR))
279 last = last->below;
280 }
281 if (LOOK_OBJ (tmp))
282 {
283 if (++start_look < pl->contr->socket.look_position)
284 continue;
285 end_look++;
286 if (end_look > NUM_LOOK_OBJECTS)
287 {
288 /* What we basically do is make a 'fake' object - when the user applies it,
289 * we notice the special tag the object has, and act accordingly.
290 */
291 SockList_AddInt (&sl, 0x80000000 | (pl->contr->socket.look_position + NUM_LOOK_OBJECTS));
292 SockList_AddInt (&sl, 0);
293 SockList_AddInt (&sl, (uint32) - 1);
294 SockList_AddInt (&sl, empty_face->number);
295 sprintf (buf, "Click here to see next group of items");
296 add_stringlen_to_sockbuf (buf, &sl);
297 SockList_AddShort (&sl, 0);
298 SockList_AddChar (&sl, 0);
299 SockList_AddInt (&sl, 0);
300 if (pl->contr->socket.itemcmd == 2)
301 SockList_AddShort (&sl, 0);
302 break;
303 }
304 if (tmp->head)
305 head = tmp->head;
306 else
307 head = tmp;
308
309 add_object_to_socklist (&pl->contr->socket, &sl, head);
310 got_one++;
311
312 if (sl.len >= (MAXSOCKBUF - MAXITEMLEN))
313 {
314 Send_With_Handling (&pl->contr->socket, &sl);
315 sprintf ((char *) sl.buf, "item%d ", pl->contr->socket.itemcmd);
316 sl.len = strlen ((char *) sl.buf);
317 SockList_AddInt (&sl, 0);
318 got_one = 0;
319 }
320 } /* If LOOK_OBJ() */
321 }
322 if (got_one)
323 Send_With_Handling (&pl->contr->socket, &sl);
324
325 free (sl.buf);
326 }
327
328 /**
329 * Sends whole inventory.
330 */
331 void
332 esrv_send_inventory (object *pl, object *op)
333 {
334 object *tmp;
335 int got_one = 0;
336 SockList sl;
337
338 sl.buf = (unsigned char *) malloc (MAXSOCKBUF);
339
340 sprintf ((char *) sl.buf, "delinv %d", op->count);
341 sl.len = strlen ((char *) sl.buf);
342 Send_With_Handling (&pl->contr->socket, &sl);
343
344 sprintf ((char *) sl.buf, "item%d ", pl->contr->socket.itemcmd);
345 sl.len = strlen ((char *) sl.buf);
346
347 SockList_AddInt (&sl, op->count);
348
349 for (tmp = op->inv; tmp; tmp = tmp->below)
350 {
351 object *head;
352
353 if (tmp->head)
354 head = tmp->head;
355 else
356 head = tmp;
357
358 if (LOOK_OBJ (head))
359 {
360 add_object_to_socklist (&pl->contr->socket, &sl, head);
361
362 got_one++;
363
364 /* IT is possible for players to accumulate a huge amount of
365 * items (especially with some of the bags out there) to
366 * overflow the buffer. IF so, send multiple item commands.
367 */
368 if (sl.len >= (MAXSOCKBUF - MAXITEMLEN))
369 {
370 Send_With_Handling (&pl->contr->socket, &sl);
371 sprintf ((char *) sl.buf, "item%d ", pl->contr->socket.itemcmd);
372 sl.len = strlen ((char *) sl.buf);
373 SockList_AddInt (&sl, op->count);
374 got_one = 0;
375 }
376 } /* If LOOK_OBJ() */
377 }
378 if (got_one)
379 Send_With_Handling (&pl->contr->socket, &sl);
380 free (sl.buf);
381 }
382
383 /**
384 * Updates object *op for player *pl.
385 *
386 * flags is a list of values to update
387 * to the client (as defined in newclient.h - might as well use the
388 * same value both places.
389 */
390
391 void
392 esrv_update_item (int flags, object *pl, object *op)
393 {
394 SockList sl;
395
396 /* If we have a request to send the player item, skip a few checks. */
397 if (op != pl)
398 {
399 if (!LOOK_OBJ (op))
400 return;
401 /* we remove the check for op->env, because in theory, the object
402 * is hopefully in the same place, so the client should preserve
403 * order.
404 */
405 }
406 if (!QUERY_FLAG (op, FLAG_CLIENT_SENT))
407 {
408 /* FLAG_CLIENT_SENT is debug only. We are using it to see where
409 * this is happening - we can set a breakpoint here in the debugger
410 * and track back the call.
411 */
412 LOG (llevDebug, "We have not sent item %s (%d)\n", &op->name, op->count);
413 }
414 sl.buf = (unsigned char *) malloc (MAXSOCKBUF);
415
416 strcpy ((char *) sl.buf, "upditem ");
417 sl.len = strlen ((char *) sl.buf);
418
419 SockList_AddChar (&sl, (char) flags);
420
421 if (op->head)
422 op = op->head;
423
424 SockList_AddInt (&sl, op->count);
425
426 if (flags & UPD_LOCATION)
427 SockList_AddInt (&sl, op->env ? op->env->count : 0);
428
429 if (flags & UPD_FLAGS)
430 SockList_AddInt (&sl, query_flags (op));
431
432 if (flags & UPD_WEIGHT)
433 {
434 sint32 weight = WEIGHT (op);
435
436 SockList_AddInt (&sl, QUERY_FLAG (op, FLAG_NO_PICK) ? -1 : weight);
437 if (pl == op)
438 {
439 op->contr->last_weight = weight;
440 }
441 }
442
443 if (flags & UPD_FACE)
444 {
445 if (!(pl->contr->socket.faces_sent[op->face->number] & NS_FACESENT_FACE))
446 esrv_send_face (&pl->contr->socket, op->face->number, 0);
447 SockList_AddInt (&sl, op->face->number);
448 }
449 if (flags & UPD_NAME)
450 {
451 int len;
452 const char *item_p;
453 char item_n[MAX_BUF];
454
455 if (!op->custom_name)
456 {
457 strncpy (item_n, query_base_name (op, 0), 127);
458 item_n[127] = 0;
459 len = strlen (item_n);
460 item_p = query_base_name (op, 1);
461 }
462 else
463 {
464 strncpy (item_n, op->custom_name, 127);
465 item_n[127] = 0;
466 len = strlen (item_n);
467 item_p = op->custom_name;
468 }
469
470 strncpy (item_n + len + 1, item_p, 127);
471 item_n[254] = 0;
472 len += strlen (item_n + 1 + len) + 1;
473 SockList_AddChar (&sl, (char) len);
474 memcpy (sl.buf + sl.len, item_n, len);
475 sl.len += len;
476 }
477 if (flags & UPD_ANIM)
478 SockList_AddShort (&sl, op->animation_id);
479
480 if (flags & UPD_ANIMSPEED)
481 {
482 int anim_speed = 0;
483
484 if (QUERY_FLAG (op, FLAG_ANIMATE))
485 {
486 if (op->anim_speed)
487 anim_speed = op->anim_speed;
488 else
489 {
490 if (FABS (op->speed) < 0.001)
491 anim_speed = 255;
492 else if (FABS (op->speed) >= 1.0)
493 anim_speed = 1;
494 else
495 anim_speed = (int) (1.0 / FABS (op->speed));
496 }
497 if (anim_speed > 255)
498 anim_speed = 255;
499 }
500 SockList_AddChar (&sl, (char) anim_speed);
501 }
502 if (flags & UPD_NROF)
503 SockList_AddInt (&sl, op->nrof);
504
505 Send_With_Handling (&pl->contr->socket, &sl);
506 free (sl.buf);
507 }
508
509 /**
510 * Sends item's info to player.
511 */
512 void
513 esrv_send_item (object *pl, object *op)
514 {
515 SockList sl;
516
517 /* If this is not the player object, do some more checks */
518 if (op != pl)
519 {
520 /* We only send 'visibile' objects to the client */
521 if (!LOOK_OBJ (op))
522 return;
523 /* if the item is on the ground, mark that the look needs to
524 * be updated.
525 */
526 if (!op->env)
527 {
528 pl->contr->socket.update_look = 1;
529 return;
530 }
531 }
532
533 sl.buf = (unsigned char *) malloc (MAXSOCKBUF);
534
535 sprintf ((char *) sl.buf, "item%d ", pl->contr->socket.itemcmd);
536 sl.len = strlen ((char *) sl.buf);
537
538 if (op->head)
539 op = op->head;
540
541 SockList_AddInt (&sl, op->env ? op->env->count : 0);
542
543 add_object_to_socklist (&pl->contr->socket, &sl, op);
544
545 Send_With_Handling (&pl->contr->socket, &sl);
546 SET_FLAG (op, FLAG_CLIENT_SENT);
547 free (sl.buf);
548 }
549
550 /**
551 * Tells the client to delete an item. Uses the item
552 * command with a -1 location.
553 */
554
555 void
556 esrv_del_item (player *pl, int tag)
557 {
558 SockList sl;
559
560 sl.buf = (unsigned char *) malloc (MAXSOCKBUF);
561
562 strcpy ((char *) sl.buf, "delitem ");
563 sl.len = strlen ((char *) sl.buf);
564 SockList_AddInt (&sl, tag);
565
566 Send_With_Handling (&pl->socket, &sl);
567 free (sl.buf);
568 }
569
570
571 /*******************************************************************************
572 *
573 * Client has requested us to do something with an object.
574 *
575 ******************************************************************************/
576
577 /**
578 * Takes a player and object count (tag) and returns the actual object
579 * pointer, or null if it can't be found.
580 */
581
582 object *
583 esrv_get_ob_from_count (object *pl, tag_t count)
584 {
585 object *op, *tmp;
586
587 if (pl->count == count)
588 return pl;
589
590 for (op = pl->inv; op; op = op->below)
591 if (op->count == count)
592 return op;
593 else if (op->type == CONTAINER && pl->container == op)
594 for (tmp = op->inv; tmp; tmp = tmp->below)
595 if (tmp->count == count)
596 return tmp;
597
598 for (op = get_map_ob (pl->map, pl->x, pl->y); op; op = op->above)
599 if (op->head != NULL && op->head->count == count)
600 return op;
601 else if (op->count == count)
602 return op;
603 else if (op->type == CONTAINER && pl->container == op)
604 for (tmp = op->inv; tmp; tmp = tmp->below)
605 if (tmp->count == count)
606 return tmp;
607
608 return NULL;
609 }
610
611
612 /** Client wants to examine some object. So lets do so. */
613 void
614 ExamineCmd (char *buf, int len, player *pl)
615 {
616 long tag = atoi (buf);
617 object *op = esrv_get_ob_from_count (pl->ob, tag);
618
619 if (!op)
620 {
621 LOG (llevDebug, "Player '%s' tried to examine the unknown object (%ld)\n", &pl->ob->name, tag);
622 return;
623 }
624 examine (pl->ob, op);
625 }
626
627 /** Client wants to apply some object. Lets do so. */
628 void
629 ApplyCmd (char *buf, int len, player *pl)
630 {
631 uint32 tag = atoi (buf);
632 object *op = esrv_get_ob_from_count (pl->ob, tag);
633
634 /* sort of a hack, but if the player saves and the player then manually
635 * applies a savebed (or otherwise tries to do stuff), we run into trouble.
636 */
637 if (QUERY_FLAG (pl->ob, FLAG_REMOVED))
638 return;
639
640 /* If the high bit is set, player applied a pseudo object. */
641 if (tag & 0x80000000)
642 {
643 pl->socket.look_position = tag & 0x7fffffff;
644 pl->socket.update_look = 1;
645 return;
646 }
647
648 if (!op)
649 {
650 LOG (llevDebug, "Player '%s' tried to apply the unknown object (%d)\n", &pl->ob->name, tag);
651 return;
652 }
653 player_apply (pl->ob, op, 0, 0);
654 }
655
656 /** Client wants to apply some object. Lets do so. */
657 void
658 LockItem (uint8 * data, int len, player *pl)
659 {
660 int flag, tag;
661 object *op;
662
663 flag = data[0];
664 tag = GetInt_String (data + 1);
665 op = esrv_get_ob_from_count (pl->ob, tag);
666
667 if (!op)
668 {
669 new_draw_info (NDI_UNIQUE, 0, pl->ob, "Could not find object to lock/unlock");
670 return;
671 }
672 if (!flag)
673 CLEAR_FLAG (op, FLAG_INV_LOCKED);
674 else
675 SET_FLAG (op, FLAG_INV_LOCKED);
676 esrv_update_item (UPD_FLAGS, pl->ob, op);
677 }
678
679 /** Client wants to apply some object. Lets do so. */
680 void
681 MarkItem (uint8 * data, int len, player *pl)
682 {
683 int tag;
684 object *op;
685
686 tag = GetInt_String (data);
687 op = esrv_get_ob_from_count (pl->ob, tag);
688 if (!op)
689 {
690 new_draw_info (NDI_UNIQUE, 0, pl->ob, "Could not find object to mark");
691 return;
692 }
693 pl->mark = op;
694 pl->mark_count = op->count;
695 new_draw_info_format (NDI_UNIQUE, 0, pl->ob, "Marked item %s", query_name (op));
696 }
697
698
699 /**
700 * look_at prints items on the specified square.
701 *
702 * [ removed EARTHWALL check and added check for containers inventory.
703 * Tero.Haatanen@lut.fi ]
704 */
705 void
706 look_at (object *op, int dx, int dy)
707 {
708 object *tmp;
709 int flag = 0;
710 sint16 x, y;
711 mapstruct *m;
712
713 x = op->x + dx;
714 y = op->y + dy;
715
716 if (out_of_map (op->map, x, y))
717 return;
718
719 m = get_map_from_coord (op->map, &x, &y);
720 if (!m)
721 return;
722
723 for (tmp = get_map_ob (m, x, y); tmp != NULL && tmp->above != NULL; tmp = tmp->above);
724
725 for (; tmp != NULL; tmp = tmp->below)
726 {
727 if (tmp->invisible && !QUERY_FLAG (op, FLAG_WIZ))
728 continue;
729
730 if (!flag)
731 {
732 if (dx || dy)
733 new_draw_info (NDI_UNIQUE, 0, op, "There you see:");
734 else
735 {
736 clear_win_info (op);
737 new_draw_info (NDI_UNIQUE, 0, op, "You see:");
738 }
739 flag = 1;
740 }
741
742 if (QUERY_FLAG (op, FLAG_WIZ))
743 new_draw_info_format (NDI_UNIQUE, 0, op, "- %s (%d).", query_name (tmp), tmp->count);
744 else
745 new_draw_info_format (NDI_UNIQUE, 0, op, "- %s.", query_name (tmp));
746
747 if (((tmp->inv != NULL || (tmp->head && tmp->head->inv)) &&
748 (tmp->type != CONTAINER && tmp->type != FLESH)) || QUERY_FLAG (op, FLAG_WIZ))
749 inventory (op, tmp->head == NULL ? tmp : tmp->head);
750
751 if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) && !QUERY_FLAG (op, FLAG_WIZ)) /* don't continue under the floor */
752 break;
753 }
754
755 if (!flag)
756 {
757 if (dx || dy)
758 new_draw_info (NDI_UNIQUE, 0, op, "You see nothing there.");
759 else
760 new_draw_info (NDI_UNIQUE, 0, op, "You see nothing.");
761 }
762 }
763
764
765
766 /** Client wants to look at some object. Lets do so. */
767 void
768 LookAt (char *buf, int len, player *pl)
769 {
770 int dx, dy;
771 char *cp;
772
773 dx = atoi (buf);
774 if (!(cp = strchr (buf, ' ')))
775 {
776 return;
777 }
778 dy = atoi (cp);
779
780 if (FABS (dx) > pl->socket.mapx / 2 || FABS (dy) > pl->socket.mapy / 2)
781 return;
782
783 if (pl->blocked_los[dx + pl->socket.mapx / 2][dy + pl->socket.mapy / 2])
784 return;
785
786 look_at (pl->ob, dx, dy);
787 }
788
789 /** Move an object to a new location */
790 void
791 esrv_move_object (object *pl, tag_t to, tag_t tag, long nrof)
792 {
793 object *op, *env;
794
795 op = esrv_get_ob_from_count (pl, tag);
796 if (!op)
797 {
798 LOG (llevDebug, "Player '%s' tried to move an unknown object (%ld)\n", &pl->name, tag);
799 return;
800 }
801
802 if (!to)
803 { /* drop it to the ground */
804
805 /* LOG(llevDebug, "Drop it on the ground.\n");*/
806
807 if (op->map && !op->env)
808 {
809
810 /* LOG(llevDebug,"Dropping object to ground that is already on ground\n");*/
811 return;
812 }
813 /* If it is an active container, then we should drop all objects
814 * in the container and not the container itself.
815 */
816 if (op->inv && QUERY_FLAG (op, FLAG_APPLIED))
817 {
818 object *current, *next;
819
820 for (current = op->inv; current != NULL; current = next)
821 {
822 next = current->below;
823 drop_object (pl, current, 0);
824 }
825 esrv_update_item (UPD_WEIGHT, pl, op);
826 }
827 else
828 {
829 drop_object (pl, op, nrof);
830 }
831 return;
832 }
833 else if (to == pl->count)
834 { /* pick it up to the inventory */
835 /* return if player has already picked it up */
836 if (op->env == pl)
837 return;
838
839 pl->contr->count = nrof;
840 pick_up (pl, op);
841 return;
842 }
843 env = esrv_get_ob_from_count (pl, to);
844 if (!env)
845 {
846 LOG (llevDebug, "Player '%s' tried to move object to the unknown location (%d)\n", &pl->name, to);
847 return;
848 }
849 /* put_object_in_sack presumes that necessary sanity checking
850 * has already been done (eg, it can be picked up and fits in
851 * in a sack, so check for those things. We should also check
852 * an make sure env is in fact a container for that matter.
853 */
854 if (env->type == CONTAINER && can_pick (pl, op) && sack_can_hold (pl, env, op, nrof))
855 {
856 put_object_in_sack (pl, env, op, nrof);
857 }
858 }