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Comparing deliantra/server/common/object.C (file contents):
Revision 1.29 by root, Mon Sep 11 12:38:36 2006 UTC vs.
Revision 1.58 by pippijn, Mon Dec 4 17:48:35 2006 UTC

1
2/* 1/*
3 CrossFire, A Multiplayer game for X-windows 2 CrossFire, A Multiplayer game for X-windows
4 3
5 Copyright (C) 2001 Mark Wedel & Crossfire Development Team 4 Copyright (C) 2001 Mark Wedel & Crossfire Development Team
6 Copyright (C) 1992 Frank Tore Johansen 5 Copyright (C) 1992 Frank Tore Johansen
17 16
18 You should have received a copy of the GNU General Public License 17 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software 18 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 20
22 The authors can be reached via e-mail at crossfire-devel@real-time.com 21 The authors can be reached via e-mail at <crossfire@schmorp.de>
23*/ 22*/
24 23
25/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects. 24/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
26 sub/add_weight will transcend the environment updating the carrying 25 sub/add_weight will transcend the environment updating the carrying
27 variable. */ 26 variable. */
29#include <stdio.h> 28#include <stdio.h>
30#include <sys/types.h> 29#include <sys/types.h>
31#include <sys/uio.h> 30#include <sys/uio.h>
32#include <object.h> 31#include <object.h>
33#include <funcpoint.h> 32#include <funcpoint.h>
34#include <skills.h>
35#include <loader.h> 33#include <loader.h>
36 34
37int nrofallocobjects = 0; 35int nrofallocobjects = 0;
36static UUID uuid;
37const uint64 UUID_SKIP = 1<<19;
38 38
39object *objects; /* Pointer to the list of used objects */
40object *active_objects; /* List of active objects that need to be processed */ 39object *active_objects; /* List of active objects that need to be processed */
41 40
42short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1, 41short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
43 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1 42 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
44}; 43};
50}; 49};
51int freedir[SIZEOFFREE] = { 50int freedir[SIZEOFFREE] = {
52 0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8, 51 0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
53 1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8 52 1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
54}; 53};
54
55static void
56write_uuid (void)
57{
58 char filename1[MAX_BUF], filename2[MAX_BUF];
59
60 sprintf (filename1, "%s/uuid", settings.localdir);
61 sprintf (filename2, "%s/uuid~", settings.localdir);
62
63 FILE *fp;
64
65 if (!(fp = fopen (filename2, "w")))
66 {
67 LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
68 return;
69 }
70
71 fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
72 fclose (fp);
73 rename (filename2, filename1);
74}
75
76static void
77read_uuid (void)
78{
79 char filename[MAX_BUF];
80
81 sprintf (filename, "%s/uuid", settings.localdir);
82
83 FILE *fp;
84
85 if (!(fp = fopen (filename, "r")))
86 {
87 if (errno == ENOENT)
88 {
89 LOG (llevInfo, "RESET uid to 1\n");
90 uuid.seq = 0;
91 write_uuid ();
92 return;
93 }
94
95 LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
96 _exit (1);
97 }
98
99 int version;
100 unsigned long long uid;
101 if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
102 {
103 LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
104 _exit (1);
105 }
106
107 uuid.seq = uid;
108 write_uuid ();
109 LOG (llevDebug, "read UID: %lld\n", uid);
110 fclose (fp);
111}
112
113UUID
114gen_uuid ()
115{
116 UUID uid;
117
118 uid.seq = ++uuid.seq;
119
120 if (!(uuid.seq & (UUID_SKIP - 1)))
121 write_uuid ();
122
123 return uid;
124}
125
126void
127init_uuid ()
128{
129 read_uuid ();
130}
55 131
56/* Returns TRUE if every key_values in wants has a partner with the same value in has. */ 132/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
57static int 133static int
58compare_ob_value_lists_one (const object *wants, const object *has) 134compare_ob_value_lists_one (const object *wants, const object *has)
59{ 135{
255 { 331 {
256 if (inv->inv) 332 if (inv->inv)
257 sum_weight (inv); 333 sum_weight (inv);
258 sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1); 334 sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
259 } 335 }
336
260 if (op->type == CONTAINER && op->stats.Str) 337 if (op->type == CONTAINER && op->stats.Str)
261 sum = (sum * (100 - op->stats.Str)) / 100; 338 sum = (sum * (100 - op->stats.Str)) / 100;
339
262 if (op->carrying != sum) 340 if (op->carrying != sum)
263 op->carrying = sum; 341 op->carrying = sum;
342
264 return sum; 343 return sum;
265} 344}
266 345
267/** 346/**
268 * Return the outermost environment object for a given object. 347 * Return the outermost environment object for a given object.
295 * Used by: Crossedit: dump. Server DM commands: dumpbelow, dump. 374 * Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
296 * Some error messages. 375 * Some error messages.
297 * The result of the dump is stored in the static global errmsg array. 376 * The result of the dump is stored in the static global errmsg array.
298 */ 377 */
299 378
300void 379char *
301dump_object2 (object *op)
302{
303 errmsg[0] = 0;
304 return;
305 //TODO//D#d#
306#if 0
307 char *cp;
308
309/* object *tmp;*/
310
311 if (op->arch != NULL)
312 {
313 strcat (errmsg, "arch ");
314 strcat (errmsg, op->arch->name ? op->arch->name : "(null)");
315 strcat (errmsg, "\n");
316 if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
317 strcat (errmsg, cp);
318# if 0
319 /* Don't dump player diffs - they are too long, mostly meaningless, and
320 * will overflow the buffer.
321 * Changed so that we don't dump inventory either. This may
322 * also overflow the buffer.
323 */
324 if (op->type != PLAYER && (cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
325 strcat (errmsg, cp);
326 for (tmp = op->inv; tmp; tmp = tmp->below)
327 dump_object2 (tmp);
328# endif
329 strcat (errmsg, "end\n");
330 }
331 else
332 {
333 strcat (errmsg, "Object ");
334 if (op->name == NULL)
335 strcat (errmsg, "(null)");
336 else
337 strcat (errmsg, op->name);
338 strcat (errmsg, "\n");
339# if 0
340 if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
341 strcat (errmsg, cp);
342 for (tmp = op->inv; tmp; tmp = tmp->below)
343 dump_object2 (tmp);
344# endif
345 strcat (errmsg, "end\n");
346 }
347#endif
348}
349
350/*
351 * Dumps an object. Returns output in the static global errmsg array.
352 */
353
354void
355dump_object (object *op) 380dump_object (object *op)
356{ 381{
357 if (op == NULL) 382 if (!op)
358 { 383 return strdup ("[NULLOBJ]");
359 strcpy (errmsg, "[NULL pointer]");
360 return;
361 }
362 errmsg[0] = '\0';
363 dump_object2 (op);
364}
365 384
366void 385 object_freezer freezer;
367dump_all_objects (void) 386 save_object (freezer, op, 3);
368{ 387 return freezer.as_string ();
369 object *op;
370
371 for (op = objects; op != NULL; op = op->next)
372 {
373 dump_object (op);
374 fprintf (logfile, "Object %d\n:%s\n", op->count, errmsg);
375 }
376} 388}
377 389
378/* 390/*
379 * get_nearest_part(multi-object, object 2) returns the part of the 391 * get_nearest_part(multi-object, object 2) returns the part of the
380 * multi-object 1 which is closest to the second object. 392 * multi-object 1 which is closest to the second object.
400 */ 412 */
401 413
402object * 414object *
403find_object (tag_t i) 415find_object (tag_t i)
404{ 416{
405 object *op; 417 for (object *op = object::first; op; op = op->next)
406
407 for (op = objects; op != NULL; op = op->next)
408 if (op->count == i) 418 if (op->count == i)
409 break; 419 return op;
420
410 return op; 421 return 0;
411} 422}
412 423
413/* 424/*
414 * Returns the first object which has a name equal to the argument. 425 * Returns the first object which has a name equal to the argument.
415 * Used only by the patch command, but not all that useful. 426 * Used only by the patch command, but not all that useful.
417 */ 428 */
418 429
419object * 430object *
420find_object_name (const char *str) 431find_object_name (const char *str)
421{ 432{
422 const char *name = shstr::find (str); 433 shstr_cmp str_ (str);
423 object *op; 434 object *op;
424 435
425 for (op = objects; op != NULL; op = op->next) 436 for (op = object::first; op != NULL; op = op->next)
426 if (&op->name == name) 437 if (op->name == str_)
427 break; 438 break;
428 439
429 return op; 440 return op;
430} 441}
431 442
434{ 445{
435 LOG (llevDebug, "%d allocated objects\n", nrofallocobjects); 446 LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
436} 447}
437 448
438/* 449/*
439 * Returns the object which this object marks as being the owner.
440 * A id-scheme is used to avoid pointing to objects which have been
441 * freed and are now reused. If this is detected, the owner is
442 * set to NULL, and NULL is returned.
443 * Changed 2004-02-12 - if the player is setting at the play again
444 * prompt, he is removed, and we don't want to treat him as an owner of
445 * anything, so check removed flag. I don't expect that this should break
446 * anything - once an object is removed, it is basically dead anyways.
447 */
448
449object *
450get_owner (object *op)
451{
452 if (op->owner == NULL)
453 return NULL;
454
455 if (!QUERY_FLAG (op->owner, FLAG_FREED) && !QUERY_FLAG (op->owner, FLAG_REMOVED) && op->owner->count == op->ownercount)
456 return op->owner;
457
458 op->owner = NULL;
459 op->ownercount = 0;
460 return NULL;
461}
462
463void
464clear_owner (object *op)
465{
466 if (!op)
467 return;
468
469 if (op->owner && op->ownercount == op->owner->count)
470 op->owner->refcount--;
471
472 op->owner = NULL;
473 op->ownercount = 0;
474}
475
476/*
477 * Sets the owner and sets the skill and exp pointers to owner's current 450 * Sets the owner and sets the skill and exp pointers to owner's current
478 * skill and experience objects. 451 * skill and experience objects.
479 */ 452 */
480void 453void
481set_owner (object *op, object *owner) 454object::set_owner (object *owner)
482{ 455{
483 if (owner == NULL || op == NULL) 456 if (!owner)
484 return; 457 return;
485 458
486 /* next line added to allow objects which own objects */ 459 /* next line added to allow objects which own objects */
487 /* Add a check for ownercounts in here, as I got into an endless loop 460 /* Add a check for ownercounts in here, as I got into an endless loop
488 * with the fireball owning a poison cloud which then owned the 461 * with the fireball owning a poison cloud which then owned the
489 * fireball. I believe that was caused by one of the objects getting 462 * fireball. I believe that was caused by one of the objects getting
490 * freed and then another object replacing it. Since the ownercounts 463 * freed and then another object replacing it. Since the ownercounts
491 * didn't match, this check is valid and I believe that cause is valid. 464 * didn't match, this check is valid and I believe that cause is valid.
492 */ 465 */
493 while (owner->owner && owner != owner->owner && owner->ownercount == owner->owner->count) 466 while (owner->owner)
494 owner = owner->owner; 467 owner = owner->owner;
495 468
496 /* IF the owner still has an owner, we did not resolve to a final owner.
497 * so lets not add to that.
498 */
499 if (owner->owner)
500 return;
501
502 op->owner = owner; 469 this->owner = owner;
503
504 op->ownercount = owner->count;
505 owner->refcount++;
506}
507
508/* Set the owner to clone's current owner and set the skill and experience
509 * objects to clone's objects (typically those objects that where the owner's
510 * current skill and experience objects at the time when clone's owner was
511 * set - not the owner's current skill and experience objects).
512 *
513 * Use this function if player created an object (e.g. fire bullet, swarm
514 * spell), and this object creates further objects whose kills should be
515 * accounted for the player's original skill, even if player has changed
516 * skills meanwhile.
517 */
518void
519copy_owner (object *op, object *clone)
520{
521 object *owner = get_owner (clone);
522
523 if (owner == NULL)
524 {
525 /* players don't have owners - they own themselves. Update
526 * as appropriate.
527 */
528 if (clone->type == PLAYER)
529 owner = clone;
530 else
531 return;
532 }
533
534 set_owner (op, owner);
535} 470}
536 471
537/* Zero the key_values on op, decrementing the shared-string 472/* Zero the key_values on op, decrementing the shared-string
538 * refcounts and freeing the links. 473 * refcounts and freeing the links.
539 */ 474 */
555{ 490{
556 attachable_base::clear (); 491 attachable_base::clear ();
557 492
558 free_key_values (this); 493 free_key_values (this);
559 494
560 clear_owner (this); 495 owner = 0;
561
562 name = 0; 496 name = 0;
563 name_pl = 0; 497 name_pl = 0;
564 title = 0; 498 title = 0;
565 race = 0; 499 race = 0;
566 slaying = 0; 500 slaying = 0;
567 skill = 0; 501 skill = 0;
568 msg = 0; 502 msg = 0;
569 lore = 0; 503 lore = 0;
570 custom_name = 0; 504 custom_name = 0;
571 materialname = 0; 505 materialname = 0;
506 contr = 0;
507 below = 0;
508 above = 0;
509 inv = 0;
510 container = 0;
511 env = 0;
512 more = 0;
513 head = 0;
514 map = 0;
515 active_next = 0;
516 active_prev = 0;
572 517
573 memset (static_cast < object_pod * >(this), 0, sizeof (object_pod)); 518 memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
574 519
575 SET_FLAG (this, FLAG_REMOVED); 520 SET_FLAG (this, FLAG_REMOVED);
521
522 /* What is not cleared is next, prev, and count */
523
524 expmul = 1.0;
525 face = blank_face;
526
527 if (settings.casting_time)
528 casting_time = -1;
576} 529}
577 530
578void object::clone (object *destination) 531void object::clone (object *destination)
579{ 532{
580 *(object_copy *) destination = *this; 533 *(object_copy *)destination = *this;
581 *(object_pod *) destination = *this; 534 *(object_pod *)destination = *this;
582 535
583 if (self || cb) 536 if (self || cb)
584 INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination)); 537 INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
585}
586
587/*
588 * clear_object() frees everything allocated by an object, and also
589 * clears all variables and flags to default settings.
590 */
591
592void
593clear_object (object *op)
594{
595 op->clear ();
596
597 op->contr = NULL;
598 op->below = NULL;
599 op->above = NULL;
600 op->inv = NULL;
601 op->container = NULL;
602 op->env = NULL;
603 op->more = NULL;
604 op->head = NULL;
605 op->map = NULL;
606 op->refcount = 0;
607 op->active_next = NULL;
608 op->active_prev = NULL;
609 /* What is not cleared is next, prev, and count */
610
611 op->expmul = 1.0;
612 op->face = blank_face;
613 op->attacked_by_count = -1;
614
615 if (settings.casting_time)
616 op->casting_time = -1;
617} 538}
618 539
619/* 540/*
620 * copy object first frees everything allocated by the second object, 541 * copy object first frees everything allocated by the second object,
621 * and then copies the contends of the first object into the second 542 * and then copies the contends of the first object into the second
622 * object, allocating what needs to be allocated. Basically, any 543 * object, allocating what needs to be allocated. Basically, any
623 * data that is malloc'd needs to be re-malloc/copied. Otherwise, 544 * data that is malloc'd needs to be re-malloc/copied. Otherwise,
624 * if the first object is freed, the pointers in the new object 545 * if the first object is freed, the pointers in the new object
625 * will point at garbage. 546 * will point at garbage.
626 */ 547 */
627
628void 548void
629copy_object (object *op2, object *op) 549copy_object (object *op2, object *op)
630{ 550{
631 bool is_freed = QUERY_FLAG (op, FLAG_FREED); 551 bool is_freed = QUERY_FLAG (op, FLAG_FREED);
632 bool is_removed = QUERY_FLAG (op, FLAG_REMOVED); 552 bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);
692/* 612/*
693 * Updates the speed of an object. If the speed changes from 0 to another 613 * Updates the speed of an object. If the speed changes from 0 to another
694 * value, or vice versa, then add/remove the object from the active list. 614 * value, or vice versa, then add/remove the object from the active list.
695 * This function needs to be called whenever the speed of an object changes. 615 * This function needs to be called whenever the speed of an object changes.
696 */ 616 */
697
698void 617void
699update_ob_speed (object *op) 618update_ob_speed (object *op)
700{ 619{
701 extern int arch_init; 620 extern int arch_init;
702 621
711 abort (); 630 abort ();
712#else 631#else
713 op->speed = 0; 632 op->speed = 0;
714#endif 633#endif
715 } 634 }
635
716 if (arch_init) 636 if (arch_init)
717 {
718 return; 637 return;
719 } 638
720 if (FABS (op->speed) > MIN_ACTIVE_SPEED) 639 if (FABS (op->speed) > MIN_ACTIVE_SPEED)
721 { 640 {
722 /* If already on active list, don't do anything */ 641 /* If already on active list, don't do anything */
723 if (op->active_next || op->active_prev || op == active_objects) 642 if (op->active_next || op->active_prev || op == active_objects)
724 return; 643 return;
725 644
726 /* process_events() expects us to insert the object at the beginning 645 /* process_events() expects us to insert the object at the beginning
727 * of the list. */ 646 * of the list. */
728 op->active_next = active_objects; 647 op->active_next = active_objects;
648
729 if (op->active_next != NULL) 649 if (op->active_next != NULL)
730 op->active_next->active_prev = op; 650 op->active_next->active_prev = op;
651
731 active_objects = op; 652 active_objects = op;
732 } 653 }
733 else 654 else
734 { 655 {
735 /* If not on the active list, nothing needs to be done */ 656 /* If not on the active list, nothing needs to be done */
737 return; 658 return;
738 659
739 if (op->active_prev == NULL) 660 if (op->active_prev == NULL)
740 { 661 {
741 active_objects = op->active_next; 662 active_objects = op->active_next;
663
742 if (op->active_next != NULL) 664 if (op->active_next != NULL)
743 op->active_next->active_prev = NULL; 665 op->active_next->active_prev = NULL;
744 } 666 }
745 else 667 else
746 { 668 {
747 op->active_prev->active_next = op->active_next; 669 op->active_prev->active_next = op->active_next;
670
748 if (op->active_next) 671 if (op->active_next)
749 op->active_next->active_prev = op->active_prev; 672 op->active_next->active_prev = op->active_prev;
750 } 673 }
674
751 op->active_next = NULL; 675 op->active_next = NULL;
752 op->active_prev = NULL; 676 op->active_prev = NULL;
753 } 677 }
754} 678}
755 679
901 825
902 if (op->more != NULL) 826 if (op->more != NULL)
903 update_object (op->more, action); 827 update_object (op->more, action);
904} 828}
905 829
906static unordered_vector < object *>mortals; 830object::vector object::mortals;
907static 831object::vector object::objects; // not yet used
908std::vector < object *> 832object *object::first;
909 freed;
910 833
911void object::free_mortals () 834void object::free_mortals ()
912{ 835{
913 for (unordered_vector < object *>::iterator i = mortals.begin (); i != mortals.end ();) 836 for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
914 if (!(*i)->refcount) 837 if ((*i)->refcnt)
838 ++i; // further delay freeing
839 else
915 { 840 {
916 freed.push_back (*i); 841 delete *i;
917 mortals.erase (i); 842 mortals.erase (i);
918 } 843 }
919 else
920 ++i;
921} 844}
922 845
923object::object () 846object::object ()
924{ 847{
925 SET_FLAG (this, FLAG_REMOVED); 848 SET_FLAG (this, FLAG_REMOVED);
926 849
927 expmul = 1.0; 850 expmul = 1.0;
928 face = blank_face; 851 face = blank_face;
929 attacked_by_count = -1;
930} 852}
931 853
932object::~object () 854object::~object ()
933{ 855{
934 free_key_values (this); 856 free_key_values (this);
935} 857}
936 858
937void object::link () 859void object::link ()
938{ 860{
939 count = ++ob_count; 861 count = ++ob_count;
862 uuid = gen_uuid ();
940 863
941 prev = 0; 864 prev = 0;
942 next = objects; 865 next = object::first;
943 866
944 if (objects) 867 if (object::first)
945 objects->prev = this; 868 object::first->prev = this;
946 869
947 objects = this; 870 object::first = this;
948} 871}
949 872
950void object::unlink () 873void object::unlink ()
951{ 874{
952 count = 0; 875 if (this == object::first)
876 object::first = next;
953 877
954 /* Remove this object from the list of used objects */ 878 /* Remove this object from the list of used objects */
955 if (prev)
956 {
957 prev->next = next; 879 if (prev) prev->next = next;
880 if (next) next->prev = prev;
881
958 prev = 0; 882 prev = 0;
959 }
960
961 if (next)
962 {
963 next->prev = prev;
964 next = 0; 883 next = 0;
965 }
966
967 if (this == objects)
968 objects = next;
969} 884}
970 885
971object *object::create () 886object *object::create ()
972{ 887{
973 object *
974 op;
975
976 if (freed.empty ())
977 op = new object; 888 object *op = new object;
978
979 else
980 {
981 // highly annoying, but the only way to get it stable right now
982 op = freed.back ();
983 freed.pop_back ();
984 op->~object ();
985 new ((void *) op) object;
986 }
987
988 op->link (); 889 op->link ();
989 return op; 890 return op;
990} 891}
991 892
992/* 893/*
994 * it from the list of used objects, and puts it on the list of 895 * it from the list of used objects, and puts it on the list of
995 * free objects. The IS_FREED() flag is set in the object. 896 * free objects. The IS_FREED() flag is set in the object.
996 * The object must have been removed by remove_ob() first for 897 * The object must have been removed by remove_ob() first for
997 * this function to succeed. 898 * this function to succeed.
998 * 899 *
999 * If free_inventory is set, free inventory as well. Else drop items in 900 * If destroy_inventory is set, free inventory as well. Else drop items in
1000 * inventory to the ground. 901 * inventory to the ground.
1001 */ 902 */
1002void object::free (bool free_inventory) 903void object::destroy (bool destroy_inventory)
1003{ 904{
1004 if (QUERY_FLAG (this, FLAG_FREED)) 905 if (QUERY_FLAG (this, FLAG_FREED))
1005 return; 906 return;
1006 907
908 if (QUERY_FLAG (this, FLAG_FRIENDLY))
909 remove_friendly_object (this);
910
1007 if (!QUERY_FLAG (this, FLAG_REMOVED)) 911 if (!QUERY_FLAG (this, FLAG_REMOVED))
1008 remove_ob (this); 912 remove_ob (this);
1009 913
1010 if (QUERY_FLAG (this, FLAG_FRIENDLY))
1011 remove_friendly_object (this);
1012
1013 SET_FLAG (this, FLAG_FREED); 914 SET_FLAG (this, FLAG_FREED);
1014 915
1015 if (more) 916 if (more)
1016 { 917 {
1017 more->free (free_inventory); 918 more->destroy (destroy_inventory);
1018 more = 0; 919 more = 0;
1019 } 920 }
1020 921
1021 if (inv) 922 if (inv)
1022 { 923 {
1023 /* Only if the space blocks everything do we not process - 924 /* Only if the space blocks everything do we not process -
1024 * if some form of movement is allowed, let objects 925 * if some form of movement is allowed, let objects
1025 * drop on that space. 926 * drop on that space.
1026 */ 927 */
1027 if (free_inventory || !map || map->in_memory != MAP_IN_MEMORY || (GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)) 928 if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
1028 { 929 {
1029 object *op = inv; 930 object *op = inv;
1030 931
1031 while (op) 932 while (op)
1032 { 933 {
1033 object *tmp = op->below; 934 object *tmp = op->below;
1034 op->free (free_inventory); 935 op->destroy (destroy_inventory);
1035 op = tmp; 936 op = tmp;
1036 } 937 }
1037 } 938 }
1038 else 939 else
1039 { /* Put objects in inventory onto this space */ 940 { /* Put objects in inventory onto this space */
1058 op = tmp; 959 op = tmp;
1059 } 960 }
1060 } 961 }
1061 } 962 }
1062 963
1063 clear_owner (this); 964 // hack to ensure that freed objects still have a valid map
965 {
966 static maptile *freed_map; // freed objects are moved here to avoid crashes
967
968 if (!freed_map)
969 {
970 freed_map = new maptile;
971
972 freed_map->name = "/internal/freed_objects_map";
973 freed_map->width = 3;
974 freed_map->height = 3;
975
976 freed_map->allocate ();
977 }
978
979 map = freed_map;
980 x = 1;
981 y = 1;
982 }
983
984 // clear those pointers that likely might have circular references to us
985 owner = 0;
986 enemy = 0;
987 attacked_by = 0;
988
989 // only relevant for players(?), but make sure of it anyways
990 contr = 0;
1064 991
1065 /* Remove object from the active list */ 992 /* Remove object from the active list */
1066 speed = 0; 993 speed = 0;
1067 update_ob_speed (this); 994 update_ob_speed (this);
1068 995
1080sub_weight (object *op, signed long weight) 1007sub_weight (object *op, signed long weight)
1081{ 1008{
1082 while (op != NULL) 1009 while (op != NULL)
1083 { 1010 {
1084 if (op->type == CONTAINER) 1011 if (op->type == CONTAINER)
1085 {
1086 weight = (signed long) (weight * (100 - op->stats.Str) / 100); 1012 weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1087 } 1013
1088 op->carrying -= weight; 1014 op->carrying -= weight;
1089 op = op->env; 1015 op = op->env;
1090 } 1016 }
1091} 1017}
1092 1018
1100 */ 1026 */
1101 1027
1102void 1028void
1103remove_ob (object *op) 1029remove_ob (object *op)
1104{ 1030{
1031 object *tmp, *last = 0;
1105 object * 1032 object *otmp;
1106 tmp, *
1107 last = NULL;
1108 object *
1109 otmp;
1110 1033
1111 tag_t
1112 tag;
1113 int
1114 check_walk_off; 1034 int check_walk_off;
1115 mapstruct * 1035 maptile *m;
1116 m;
1117 1036
1118 sint16 1037 sint16 x, y;
1119 x,
1120 y;
1121 1038
1122 if (QUERY_FLAG (op, FLAG_REMOVED)) 1039 if (QUERY_FLAG (op, FLAG_REMOVED))
1123 return; 1040 return;
1124 1041
1125 SET_FLAG (op, FLAG_REMOVED); 1042 SET_FLAG (op, FLAG_REMOVED);
1202 * use translated coordinates in case some oddness with map tiling is 1119 * use translated coordinates in case some oddness with map tiling is
1203 * evident 1120 * evident
1204 */ 1121 */
1205 if (GET_MAP_OB (m, x, y) != op) 1122 if (GET_MAP_OB (m, x, y) != op)
1206 { 1123 {
1207 dump_object (op); 1124 char *dump = dump_object (op);
1208 LOG (llevError, 1125 LOG (llevError,
1209 "remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", errmsg); 1126 "remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);
1127 free (dump);
1210 dump_object (GET_MAP_OB (m, x, y)); 1128 dump = dump_object (GET_MAP_OB (m, x, y));
1211 LOG (llevError, "%s\n", errmsg); 1129 LOG (llevError, "%s\n", dump);
1130 free (dump);
1212 } 1131 }
1213 1132
1214 SET_MAP_OB (m, x, y, op->above); /* goes on above it. */ 1133 SET_MAP_OB (m, x, y, op->above); /* goes on above it. */
1215 } 1134 }
1216 1135
1218 op->below = 0; 1137 op->below = 0;
1219 1138
1220 if (op->map->in_memory == MAP_SAVING) 1139 if (op->map->in_memory == MAP_SAVING)
1221 return; 1140 return;
1222 1141
1223 tag = op->count;
1224 check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY); 1142 check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1225 1143
1226 for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above) 1144 for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1227 { 1145 {
1228 /* No point updating the players look faces if he is the object 1146 /* No point updating the players look faces if he is the object
1243 1161
1244 tmp->contr->socket.update_look = 1; 1162 tmp->contr->socket.update_look = 1;
1245 } 1163 }
1246 1164
1247 /* See if player moving off should effect something */ 1165 /* See if player moving off should effect something */
1248 if (check_walk_off && ((op->move_type & tmp->move_off) && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0)) 1166 if (check_walk_off
1167 && ((op->move_type & tmp->move_off)
1168 && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1249 { 1169 {
1250 move_apply (tmp, op, NULL); 1170 move_apply (tmp, op, NULL);
1251 1171
1252 if (was_destroyed (op, tag)) 1172 if (op->destroyed ())
1253 {
1254 LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name); 1173 LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1255 }
1256 } 1174 }
1257 1175
1258 /* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */ 1176 /* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1259 1177
1260 if (tmp->above == tmp) 1178 if (tmp->above == tmp)
1288 * This function goes through all objects below and including top, and 1206 * This function goes through all objects below and including top, and
1289 * merges op to the first matching object. 1207 * merges op to the first matching object.
1290 * If top is NULL, it is calculated. 1208 * If top is NULL, it is calculated.
1291 * Returns pointer to object if it succeded in the merge, otherwise NULL 1209 * Returns pointer to object if it succeded in the merge, otherwise NULL
1292 */ 1210 */
1293
1294object * 1211object *
1295merge_ob (object *op, object *top) 1212merge_ob (object *op, object *top)
1296{ 1213{
1297 if (!op->nrof) 1214 if (!op->nrof)
1298 return 0; 1215 return 0;
1314 free_object (op); 1231 free_object (op);
1315 return top; 1232 return top;
1316 } 1233 }
1317 } 1234 }
1318 1235
1319 return NULL; 1236 return 0;
1320} 1237}
1321 1238
1322/* 1239/*
1323 * same as insert_ob_in_map except it handle separate coordinates and do a clean 1240 * same as insert_ob_in_map except it handle separate coordinates and do a clean
1324 * job preparing multi-part monsters 1241 * job preparing multi-part monsters
1325 */ 1242 */
1326object * 1243object *
1327insert_ob_in_map_at (object *op, mapstruct *m, object *originator, int flag, int x, int y) 1244insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1328{ 1245{
1329 object *tmp; 1246 object *tmp;
1330 1247
1331 if (op->head) 1248 if (op->head)
1332 op = op->head; 1249 op = op->head;
1360 * NULL if 'op' was destroyed 1277 * NULL if 'op' was destroyed
1361 * just 'op' otherwise 1278 * just 'op' otherwise
1362 */ 1279 */
1363 1280
1364object * 1281object *
1365insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag) 1282insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1366{ 1283{
1367 object *tmp, *top, *floor = NULL; 1284 object *tmp, *top, *floor = NULL;
1368 sint16 x, y; 1285 sint16 x, y;
1369 1286
1370 if (QUERY_FLAG (op, FLAG_FREED)) 1287 if (QUERY_FLAG (op, FLAG_FREED))
1373 return NULL; 1290 return NULL;
1374 } 1291 }
1375 1292
1376 if (m == NULL) 1293 if (m == NULL)
1377 { 1294 {
1378 dump_object (op); 1295 char *dump = dump_object (op);
1379 LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg); 1296 LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1297 free (dump);
1380 return op; 1298 return op;
1381 } 1299 }
1382 1300
1383 if (out_of_map (m, op->x, op->y)) 1301 if (out_of_map (m, op->x, op->y))
1384 { 1302 {
1385 dump_object (op); 1303 char *dump = dump_object (op);
1386 LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg); 1304 LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1387#ifdef MANY_CORES 1305#ifdef MANY_CORES
1388 /* Better to catch this here, as otherwise the next use of this object 1306 /* Better to catch this here, as otherwise the next use of this object
1389 * is likely to cause a crash. Better to find out where it is getting 1307 * is likely to cause a crash. Better to find out where it is getting
1390 * improperly inserted. 1308 * improperly inserted.
1391 */ 1309 */
1392 abort (); 1310 abort ();
1393#endif 1311#endif
1312 free (dump);
1394 return op; 1313 return op;
1395 } 1314 }
1396 1315
1397 if (!QUERY_FLAG (op, FLAG_REMOVED)) 1316 if (!QUERY_FLAG (op, FLAG_REMOVED))
1398 { 1317 {
1399 dump_object (op); 1318 char *dump = dump_object (op);
1400 LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg); 1319 LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1320 free (dump);
1401 return op; 1321 return op;
1402 } 1322 }
1403 1323
1404 if (op->more != NULL) 1324 if (op->more != NULL)
1405 { 1325 {
1651 remove_ob (tmp); 1571 remove_ob (tmp);
1652 free_object (tmp); 1572 free_object (tmp);
1653 } 1573 }
1654 } 1574 }
1655 1575
1656 tmp1 = arch_to_object (find_archetype (arch_string)); 1576 tmp1 = arch_to_object (archetype::find (arch_string));
1657 1577
1658 tmp1->x = op->x; 1578 tmp1->x = op->x;
1659 tmp1->y = op->y; 1579 tmp1->y = op->y;
1660 insert_ob_in_map (tmp1, op->map, op, 0); 1580 insert_ob_in_map (tmp1, op->map, op, 0);
1661} 1581}
1842 tmp, * 1762 tmp, *
1843 otmp; 1763 otmp;
1844 1764
1845 if (!QUERY_FLAG (op, FLAG_REMOVED)) 1765 if (!QUERY_FLAG (op, FLAG_REMOVED))
1846 { 1766 {
1847 dump_object (op); 1767 char *dump = dump_object (op);
1848 LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", errmsg); 1768 LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", dump);
1769 free (dump);
1849 return op; 1770 return op;
1850 } 1771 }
1851 1772
1852 if (where == NULL) 1773 if (where == NULL)
1853 { 1774 {
1854 dump_object (op); 1775 char *dump = dump_object (op);
1855 LOG (llevError, "Trying to put object in NULL.\n%s\n", errmsg); 1776 LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1777 free (dump);
1856 return op; 1778 return op;
1857 } 1779 }
1858 1780
1859 if (where->head) 1781 if (where->head)
1860 { 1782 {
1960 */ 1882 */
1961 1883
1962int 1884int
1963check_move_on (object *op, object *originator) 1885check_move_on (object *op, object *originator)
1964{ 1886{
1965 object * 1887 object *tmp;
1966 tmp; 1888 maptile *m = op->map;
1967 tag_t
1968 tag;
1969 mapstruct *
1970 m = op->map;
1971 int
1972 x = op->x, y = op->y; 1889 int x = op->x, y = op->y;
1973 1890
1974 MoveType 1891 MoveType move_on, move_slow, move_block;
1975 move_on,
1976 move_slow,
1977 move_block;
1978 1892
1979 if (QUERY_FLAG (op, FLAG_NO_APPLY)) 1893 if (QUERY_FLAG (op, FLAG_NO_APPLY))
1980 return 0; 1894 return 0;
1981
1982 tag = op->count;
1983 1895
1984 move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y); 1896 move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1985 move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y); 1897 move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1986 move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y); 1898 move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1987 1899
2048 if ((!op->move_type && tmp->move_on & MOVE_WALK) || 1960 if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2049 ((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0)) 1961 ((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2050 { 1962 {
2051 move_apply (tmp, op, originator); 1963 move_apply (tmp, op, originator);
2052 1964
2053 if (was_destroyed (op, tag)) 1965 if (op->destroyed ())
2054 return 1; 1966 return 1;
2055 1967
2056 /* what the person/creature stepped onto has moved the object 1968 /* what the person/creature stepped onto has moved the object
2057 * someplace new. Don't process any further - if we did, 1969 * someplace new. Don't process any further - if we did,
2058 * have a feeling strange problems would result. 1970 * have a feeling strange problems would result.
2070 * a matching archetype at the given map and coordinates. 1982 * a matching archetype at the given map and coordinates.
2071 * The first matching object is returned, or NULL if none. 1983 * The first matching object is returned, or NULL if none.
2072 */ 1984 */
2073 1985
2074object * 1986object *
2075present_arch (const archetype *at, mapstruct *m, int x, int y) 1987present_arch (const archetype *at, maptile *m, int x, int y)
2076{ 1988{
2077 object * 1989 object *
2078 tmp; 1990 tmp;
2079 1991
2080 if (m == NULL || out_of_map (m, x, y)) 1992 if (m == NULL || out_of_map (m, x, y))
2093 * a matching type variable at the given map and coordinates. 2005 * a matching type variable at the given map and coordinates.
2094 * The first matching object is returned, or NULL if none. 2006 * The first matching object is returned, or NULL if none.
2095 */ 2007 */
2096 2008
2097object * 2009object *
2098present (unsigned char type, mapstruct *m, int x, int y) 2010present (unsigned char type, maptile *m, int x, int y)
2099{ 2011{
2100 object * 2012 object *
2101 tmp; 2013 tmp;
2102 2014
2103 if (out_of_map (m, x, y)) 2015 if (out_of_map (m, x, y))
2243 * the archetype because that isn't correct if the monster has been 2155 * the archetype because that isn't correct if the monster has been
2244 * customized, changed states, etc. 2156 * customized, changed states, etc.
2245 */ 2157 */
2246 2158
2247int 2159int
2248find_free_spot (const object *ob, mapstruct *m, int x, int y, int start, int stop) 2160find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2249{ 2161{
2250 int 2162 int
2251 i, 2163 i,
2252 index = 0, flag; 2164 index = 0, flag;
2253 static int 2165 static int
2274 return -1; 2186 return -1;
2275 return altern[RANDOM () % index]; 2187 return altern[RANDOM () % index];
2276} 2188}
2277 2189
2278/* 2190/*
2279 * find_first_free_spot(archetype, mapstruct, x, y) works like 2191 * find_first_free_spot(archetype, maptile, x, y) works like
2280 * find_free_spot(), but it will search max number of squares. 2192 * find_free_spot(), but it will search max number of squares.
2281 * But it will return the first available spot, not a random choice. 2193 * But it will return the first available spot, not a random choice.
2282 * Changed 0.93.2: Have it return -1 if there is no free spot available. 2194 * Changed 0.93.2: Have it return -1 if there is no free spot available.
2283 */ 2195 */
2284 2196
2285int 2197int
2286find_first_free_spot (const object *ob, mapstruct *m, int x, int y) 2198find_first_free_spot (const object *ob, maptile *m, int x, int y)
2287{ 2199{
2288 int 2200 int
2289 i; 2201 i;
2290 2202
2291 for (i = 0; i < SIZEOFFREE; i++) 2203 for (i = 0; i < SIZEOFFREE; i++)
2355 * because we have to know what movement the thing looking to move 2267 * because we have to know what movement the thing looking to move
2356 * there is capable of. 2268 * there is capable of.
2357 */ 2269 */
2358 2270
2359int 2271int
2360find_dir (mapstruct *m, int x, int y, object *exclude) 2272find_dir (maptile *m, int x, int y, object *exclude)
2361{ 2273{
2362 int 2274 int
2363 i, 2275 i,
2364 max = SIZEOFFREE, mflags; 2276 max = SIZEOFFREE, mflags;
2365 2277
2366 sint16 nx, ny; 2278 sint16 nx, ny;
2367 object * 2279 object *
2368 tmp; 2280 tmp;
2369 mapstruct * 2281 maptile *
2370 mp; 2282 mp;
2371 2283
2372 MoveType blocked, move_type; 2284 MoveType blocked, move_type;
2373 2285
2374 if (exclude && exclude->head) 2286 if (exclude && exclude->head)
2582 * Modified to be map tile aware -.MSW 2494 * Modified to be map tile aware -.MSW
2583 */ 2495 */
2584 2496
2585 2497
2586int 2498int
2587can_see_monsterP (mapstruct *m, int x, int y, int dir) 2499can_see_monsterP (maptile *m, int x, int y, int dir)
2588{ 2500{
2589 sint16 dx, dy; 2501 sint16 dx, dy;
2590 int 2502 int
2591 mflags; 2503 mflags;
2592 2504
2672 if (prev) 2584 if (prev)
2673 prev->more = tmp; 2585 prev->more = tmp;
2674 prev = tmp; 2586 prev = tmp;
2675 } 2587 }
2676 2588
2677 /*** copy inventory ***/
2678 for (item = src->inv; item; item = item->below) 2589 for (item = src->inv; item; item = item->below)
2679 {
2680 (void) insert_ob_in_ob (object_create_clone (item), dst); 2590 insert_ob_in_ob (object_create_clone (item), dst);
2681 }
2682 2591
2683 return dst; 2592 return dst;
2684} 2593}
2685 2594
2686/* return true if the object was destroyed, 0 otherwise */
2687int
2688was_destroyed (const object *op, tag_t old_tag)
2689{
2690 /* checking for FLAG_FREED isn't necessary, but makes this function more
2691 * robust */
2692 return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2693}
2694
2695/* GROS - Creates an object using a string representing its content. */ 2595/* GROS - Creates an object using a string representing its content. */
2696
2697/* Basically, we save the content of the string to a temp file, then call */ 2596/* Basically, we save the content of the string to a temp file, then call */
2698
2699/* load_object on it. I admit it is a highly inefficient way to make things, */ 2597/* load_object on it. I admit it is a highly inefficient way to make things, */
2700
2701/* but it was simple to make and allows reusing the load_object function. */ 2598/* but it was simple to make and allows reusing the load_object function. */
2702
2703/* Remember not to use load_object_str in a time-critical situation. */ 2599/* Remember not to use load_object_str in a time-critical situation. */
2704
2705/* Also remember that multiparts objects are not supported for now. */ 2600/* Also remember that multiparts objects are not supported for now. */
2706 2601
2707object * 2602object *
2708load_object_str (const char *obstr) 2603load_object_str (const char *obstr)
2709{ 2604{
2710 object * 2605 object *op;
2711 op;
2712 char
2713 filename[MAX_BUF]; 2606 char filename[MAX_BUF];
2714 2607
2715 sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir); 2608 sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2716 2609
2717 FILE *
2718 tempfile = fopen (filename, "w"); 2610 FILE *tempfile = fopen (filename, "w");
2719 2611
2720 if (tempfile == NULL) 2612 if (tempfile == NULL)
2721 { 2613 {
2722 LOG (llevError, "Error - Unable to access load object temp file\n"); 2614 LOG (llevError, "Error - Unable to access load object temp file\n");
2723 return NULL; 2615 return NULL;
2724 }; 2616 }
2617
2725 fprintf (tempfile, obstr); 2618 fprintf (tempfile, obstr);
2726 fclose (tempfile); 2619 fclose (tempfile);
2727 2620
2728 op = get_object (); 2621 op = get_object ();
2729 2622
2743 * returns NULL if no match. 2636 * returns NULL if no match.
2744 */ 2637 */
2745object * 2638object *
2746find_obj_by_type_subtype (const object *who, int type, int subtype) 2639find_obj_by_type_subtype (const object *who, int type, int subtype)
2747{ 2640{
2748 object * 2641 object *tmp;
2749 tmp;
2750 2642
2751 for (tmp = who->inv; tmp; tmp = tmp->below) 2643 for (tmp = who->inv; tmp; tmp = tmp->below)
2752 if (tmp->type == type && tmp->subtype == subtype) 2644 if (tmp->type == type && tmp->subtype == subtype)
2753 return tmp; 2645 return tmp;
2754 2646
2762 * do the desired thing. 2654 * do the desired thing.
2763 */ 2655 */
2764key_value * 2656key_value *
2765get_ob_key_link (const object *ob, const char *key) 2657get_ob_key_link (const object *ob, const char *key)
2766{ 2658{
2767 key_value * 2659 key_value *link;
2768 link;
2769 2660
2770 for (link = ob->key_values; link != NULL; link = link->next) 2661 for (link = ob->key_values; link != NULL; link = link->next)
2771 {
2772 if (link->key == key) 2662 if (link->key == key)
2773 {
2774 return link; 2663 return link;
2775 }
2776 }
2777 2664
2778 return NULL; 2665 return NULL;
2779} 2666}
2780 2667
2781/* 2668/*
2786 * The returned string is shared. 2673 * The returned string is shared.
2787 */ 2674 */
2788const char * 2675const char *
2789get_ob_key_value (const object *op, const char *const key) 2676get_ob_key_value (const object *op, const char *const key)
2790{ 2677{
2791 key_value * 2678 key_value *link;
2792 link; 2679 shstr_cmp canonical_key (key);
2793 const char *
2794 canonical_key;
2795 2680
2796 canonical_key = shstr::find (key);
2797
2798 if (canonical_key == NULL) 2681 if (!canonical_key)
2799 { 2682 {
2800 /* 1. There being a field named key on any object 2683 /* 1. There being a field named key on any object
2801 * implies there'd be a shared string to find. 2684 * implies there'd be a shared string to find.
2802 * 2. Since there isn't, no object has this field. 2685 * 2. Since there isn't, no object has this field.
2803 * 3. Therefore, *this* object doesn't have this field. 2686 * 3. Therefore, *this* object doesn't have this field.
2804 */ 2687 */
2805 return NULL; 2688 return 0;
2806 } 2689 }
2807 2690
2808 /* This is copied from get_ob_key_link() above - 2691 /* This is copied from get_ob_key_link() above -
2809 * only 4 lines, and saves the function call overhead. 2692 * only 4 lines, and saves the function call overhead.
2810 */ 2693 */
2811 for (link = op->key_values; link != NULL; link = link->next) 2694 for (link = op->key_values; link; link = link->next)
2812 {
2813 if (link->key == canonical_key) 2695 if (link->key == canonical_key)
2814 {
2815 return link->value; 2696 return link->value;
2816 } 2697
2817 }
2818 return NULL; 2698 return 0;
2819} 2699}
2820 2700
2821 2701
2822/* 2702/*
2823 * Updates the canonical_key in op to value. 2703 * Updates the canonical_key in op to value.
2908{ 2788{
2909 shstr key_ (key); 2789 shstr key_ (key);
2910 2790
2911 return set_ob_key_value_s (op, key_, value, add_key); 2791 return set_ob_key_value_s (op, key_, value, add_key);
2912} 2792}
2793
2794object::depth_iterator::depth_iterator (object *container)
2795: iterator_base (container)
2796{
2797 while (item->inv)
2798 item = item->inv;
2799}
2800
2801void
2802object::depth_iterator::next ()
2803{
2804 if (item->below)
2805 {
2806 item = item->below;
2807
2808 while (item->inv)
2809 item = item->inv;
2810 }
2811 else
2812 item = item->env;
2813}
2814
2815// return a suitable string describing an objetc in enough detail to find it
2816const char *
2817object::debug_desc (char *info) const
2818{
2819 char info2[256 * 3];
2820 char *p = info;
2821
2822 p += snprintf (p, 256, "%d=\"%s%s%s\"",
2823 count,
2824 &name,
2825 title ? " " : "",
2826 title ? (const char *)title : "");
2827
2828 if (env)
2829 p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2830
2831 if (map)
2832 p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
2833
2834 return info;
2835}
2836
2837const char *
2838object::debug_desc () const
2839{
2840 static char info[256 * 3];
2841 return debug_desc (info);
2842}
2843

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