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Comparing deliantra/server/common/object.C (file contents):
Revision 1.32 by root, Mon Sep 11 23:53:30 2006 UTC vs.
Revision 1.48 by root, Thu Sep 14 23:13:48 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.
366void 445void
367dump_all_objects (void) 446dump_all_objects (void)
368{ 447{
369 object *op; 448 object *op;
370 449
371 for (op = objects; op != NULL; op = op->next) 450 for (op = object::first; op != NULL; op = op->next)
372 { 451 {
373 dump_object (op); 452 dump_object (op);
374 fprintf (logfile, "Object %d\n:%s\n", op->count, errmsg); 453 fprintf (logfile, "Object %s\n", errmsg);
375 } 454 }
376} 455}
377 456
378/* 457/*
379 * get_nearest_part(multi-object, object 2) returns the part of the 458 * get_nearest_part(multi-object, object 2) returns the part of the
402object * 481object *
403find_object (tag_t i) 482find_object (tag_t i)
404{ 483{
405 object *op; 484 object *op;
406 485
407 for (op = objects; op != NULL; op = op->next) 486 for (op = object::first; op != NULL; op = op->next)
408 if (op->count == i) 487 if (op->count == i)
409 break; 488 break;
489
410 return op; 490 return op;
411} 491}
412 492
413/* 493/*
414 * Returns the first object which has a name equal to the argument. 494 * Returns the first object which has a name equal to the argument.
417 */ 497 */
418 498
419object * 499object *
420find_object_name (const char *str) 500find_object_name (const char *str)
421{ 501{
422 const char *name = shstr::find (str); 502 shstr_cmp str_ (str);
423 object *op; 503 object *op;
424 504
425 for (op = objects; op != NULL; op = op->next) 505 for (op = object::first; op != NULL; op = op->next)
426 if (&op->name == name) 506 if (op->name == str_)
427 break; 507 break;
428 508
429 return op; 509 return op;
430} 510}
431 511
432void 512void
433free_all_object_data () 513free_all_object_data ()
434{ 514{
435 LOG (llevDebug, "%d allocated objects\n", nrofallocobjects); 515 LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
436}
437
438/*
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 */
448object *
449object::get_owner ()
450{
451 if (!owner
452 || QUERY_FLAG (owner, FLAG_FREED)
453 || QUERY_FLAG (owner, FLAG_REMOVED))
454 owner = 0;
455
456 return owner;
457} 516}
458 517
459/* 518/*
460 * Sets the owner and sets the skill and exp pointers to owner's current 519 * Sets the owner and sets the skill and exp pointers to owner's current
461 * skill and experience objects. 520 * skill and experience objects.
531 590
532 /* What is not cleared is next, prev, and count */ 591 /* What is not cleared is next, prev, and count */
533 592
534 expmul = 1.0; 593 expmul = 1.0;
535 face = blank_face; 594 face = blank_face;
536 attacked_by_count = -1;
537 595
538 if (settings.casting_time) 596 if (settings.casting_time)
539 casting_time = -1; 597 casting_time = -1;
540} 598}
541 599
836 894
837 if (op->more != NULL) 895 if (op->more != NULL)
838 update_object (op->more, action); 896 update_object (op->more, action);
839} 897}
840 898
841static unordered_vector<object *> mortals; 899object::vector object::mortals;
842static std::vector<object *> freed; 900object::vector object::objects; // not yet used
901object *object::first;
843 902
844void object::free_mortals () 903void object::free_mortals ()
845{ 904{
846 for (unordered_vector<object *>::iterator i = mortals.begin (); i != mortals.end ();) 905 for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
847 if ((*i)->refcnt) 906 if ((*i)->refcnt)
848 ++i; // further delay freeing 907 ++i; // further delay freeing
849 else 908 else
850 { 909 {
851 freed.push_back (*i);//D
852 //delete *i; 910 delete *i;
853 mortals.erase (i); 911 mortals.erase (i);
854 } 912 }
855 913
914 static int lastmortals = 0;//D
915
856 if (mortals.size())//D 916 if (mortals.size() != lastmortals)//D
917 {
918 lastmortals = mortals.size ();//D
857 LOG (llevDebug, "%d objects in mortal queue\n", mortals.size());//D 919 LOG (llevDebug, "%d objects in mortal queue\n", lastmortals);//D
920 }
858} 921}
859 922
860object::object () 923object::object ()
861{ 924{
862 SET_FLAG (this, FLAG_REMOVED); 925 SET_FLAG (this, FLAG_REMOVED);
863 926
864 expmul = 1.0; 927 expmul = 1.0;
865 face = blank_face; 928 face = blank_face;
866 attacked_by_count = -1;
867} 929}
868 930
869object::~object () 931object::~object ()
870{ 932{
871 free_key_values (this); 933 free_key_values (this);
872} 934}
873 935
874void object::link () 936void object::link ()
875{ 937{
876 count = ++ob_count; 938 count = ++ob_count;
939 uuid = gen_uuid ();
877 940
878 prev = 0; 941 prev = 0;
879 next = objects; 942 next = object::first;
880 943
881 if (objects) 944 if (object::first)
882 objects->prev = this; 945 object::first->prev = this;
883 946
884 objects = this; 947 object::first = this;
885} 948}
886 949
887void object::unlink () 950void object::unlink ()
888{ 951{
889 count = 0; 952 if (this == object::first)
953 object::first = next;
890 954
891 /* Remove this object from the list of used objects */ 955 /* Remove this object from the list of used objects */
892 if (prev)
893 {
894 prev->next = next; 956 if (prev) prev->next = next;
957 if (next) next->prev = prev;
958
895 prev = 0; 959 prev = 0;
896 }
897
898 if (next)
899 {
900 next->prev = prev;
901 next = 0; 960 next = 0;
902 }
903
904 if (this == objects)
905 objects = next;
906} 961}
907 962
908object *object::create () 963object *object::create ()
909{ 964{
910 object *op;
911
912 if (freed.empty ())
913 op = new object; 965 object *op = new object;
914 else
915 {
916 // highly annoying, but the only way to get it stable right now
917 op = freed.back ();
918 freed.pop_back ();
919 op->~object ();
920 new ((void *) op) object;
921 }
922
923 op->link (); 966 op->link ();
924 return op; 967 return op;
925} 968}
926 969
927/* 970/*
993 op = tmp; 1036 op = tmp;
994 } 1037 }
995 } 1038 }
996 } 1039 }
997 1040
1041 // clear those pointers that likely might have circular references to us
998 owner = 0; 1042 owner = 0;
1043 enemy = 0;
1044 attacked_by = 0;
999 1045
1000 /* Remove object from the active list */ 1046 /* Remove object from the active list */
1001 speed = 0; 1047 speed = 0;
1002 update_ob_speed (this); 1048 update_ob_speed (this);
1003 1049
1015sub_weight (object *op, signed long weight) 1061sub_weight (object *op, signed long weight)
1016{ 1062{
1017 while (op != NULL) 1063 while (op != NULL)
1018 { 1064 {
1019 if (op->type == CONTAINER) 1065 if (op->type == CONTAINER)
1020 {
1021 weight = (signed long) (weight * (100 - op->stats.Str) / 100); 1066 weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1022 } 1067
1023 op->carrying -= weight; 1068 op->carrying -= weight;
1024 op = op->env; 1069 op = op->env;
1025 } 1070 }
1026} 1071}
1027 1072
1035 */ 1080 */
1036 1081
1037void 1082void
1038remove_ob (object *op) 1083remove_ob (object *op)
1039{ 1084{
1085 object *tmp, *last = 0;
1040 object * 1086 object *otmp;
1041 tmp, *
1042 last = NULL;
1043 object *
1044 otmp;
1045 1087
1046 tag_t
1047 tag;
1048 int
1049 check_walk_off; 1088 int check_walk_off;
1050 mapstruct * 1089 mapstruct *m;
1051 m;
1052 1090
1053 sint16 1091 sint16 x, y;
1054 x,
1055 y;
1056 1092
1057 if (QUERY_FLAG (op, FLAG_REMOVED)) 1093 if (QUERY_FLAG (op, FLAG_REMOVED))
1058 return; 1094 return;
1059 1095
1060 SET_FLAG (op, FLAG_REMOVED); 1096 SET_FLAG (op, FLAG_REMOVED);
1153 op->below = 0; 1189 op->below = 0;
1154 1190
1155 if (op->map->in_memory == MAP_SAVING) 1191 if (op->map->in_memory == MAP_SAVING)
1156 return; 1192 return;
1157 1193
1158 tag = op->count;
1159 check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY); 1194 check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1160 1195
1161 for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above) 1196 for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1162 { 1197 {
1163 /* No point updating the players look faces if he is the object 1198 /* No point updating the players look faces if he is the object
1182 /* See if player moving off should effect something */ 1217 /* See if player moving off should effect something */
1183 if (check_walk_off && ((op->move_type & tmp->move_off) && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0)) 1218 if (check_walk_off && ((op->move_type & tmp->move_off) && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1184 { 1219 {
1185 move_apply (tmp, op, NULL); 1220 move_apply (tmp, op, NULL);
1186 1221
1187 if (was_destroyed (op, tag)) 1222 if (op->destroyed ());
1188 {
1189 LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name); 1223 LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name);
1190 }
1191 } 1224 }
1192 1225
1193 /* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */ 1226 /* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1194 1227
1195 if (tmp->above == tmp) 1228 if (tmp->above == tmp)
1223 * This function goes through all objects below and including top, and 1256 * This function goes through all objects below and including top, and
1224 * merges op to the first matching object. 1257 * merges op to the first matching object.
1225 * If top is NULL, it is calculated. 1258 * If top is NULL, it is calculated.
1226 * Returns pointer to object if it succeded in the merge, otherwise NULL 1259 * Returns pointer to object if it succeded in the merge, otherwise NULL
1227 */ 1260 */
1228
1229object * 1261object *
1230merge_ob (object *op, object *top) 1262merge_ob (object *op, object *top)
1231{ 1263{
1232 if (!op->nrof) 1264 if (!op->nrof)
1233 return 0; 1265 return 0;
1249 free_object (op); 1281 free_object (op);
1250 return top; 1282 return top;
1251 } 1283 }
1252 } 1284 }
1253 1285
1254 return NULL; 1286 return 0;
1255} 1287}
1256 1288
1257/* 1289/*
1258 * same as insert_ob_in_map except it handle separate coordinates and do a clean 1290 * same as insert_ob_in_map except it handle separate coordinates and do a clean
1259 * job preparing multi-part monsters 1291 * job preparing multi-part monsters
1586 remove_ob (tmp); 1618 remove_ob (tmp);
1587 free_object (tmp); 1619 free_object (tmp);
1588 } 1620 }
1589 } 1621 }
1590 1622
1591 tmp1 = arch_to_object (find_archetype (arch_string)); 1623 tmp1 = arch_to_object (archetype::find (arch_string));
1592 1624
1593 tmp1->x = op->x; 1625 tmp1->x = op->x;
1594 tmp1->y = op->y; 1626 tmp1->y = op->y;
1595 insert_ob_in_map (tmp1, op->map, op, 0); 1627 insert_ob_in_map (tmp1, op->map, op, 0);
1596} 1628}
1895 */ 1927 */
1896 1928
1897int 1929int
1898check_move_on (object *op, object *originator) 1930check_move_on (object *op, object *originator)
1899{ 1931{
1900 object * 1932 object *tmp;
1901 tmp; 1933 mapstruct *m = op->map;
1902 tag_t
1903 tag;
1904 mapstruct *
1905 m = op->map;
1906 int
1907 x = op->x, y = op->y; 1934 int x = op->x, y = op->y;
1908 1935
1909 MoveType 1936 MoveType move_on, move_slow, move_block;
1910 move_on,
1911 move_slow,
1912 move_block;
1913 1937
1914 if (QUERY_FLAG (op, FLAG_NO_APPLY)) 1938 if (QUERY_FLAG (op, FLAG_NO_APPLY))
1915 return 0; 1939 return 0;
1916
1917 tag = op->count;
1918 1940
1919 move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y); 1941 move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1920 move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y); 1942 move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1921 move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y); 1943 move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1922 1944
1983 if ((!op->move_type && tmp->move_on & MOVE_WALK) || 2005 if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1984 ((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0)) 2006 ((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1985 { 2007 {
1986 move_apply (tmp, op, originator); 2008 move_apply (tmp, op, originator);
1987 2009
1988 if (was_destroyed (op, tag)) 2010 if (op->destroyed ())
1989 return 1; 2011 return 1;
1990 2012
1991 /* what the person/creature stepped onto has moved the object 2013 /* what the person/creature stepped onto has moved the object
1992 * someplace new. Don't process any further - if we did, 2014 * someplace new. Don't process any further - if we did,
1993 * have a feeling strange problems would result. 2015 * have a feeling strange problems would result.
2607 if (prev) 2629 if (prev)
2608 prev->more = tmp; 2630 prev->more = tmp;
2609 prev = tmp; 2631 prev = tmp;
2610 } 2632 }
2611 2633
2612 /*** copy inventory ***/
2613 for (item = src->inv; item; item = item->below) 2634 for (item = src->inv; item; item = item->below)
2614 {
2615 (void) insert_ob_in_ob (object_create_clone (item), dst); 2635 insert_ob_in_ob (object_create_clone (item), dst);
2616 }
2617 2636
2618 return dst; 2637 return dst;
2619} 2638}
2620 2639
2621/* return true if the object was destroyed, 0 otherwise */
2622int
2623was_destroyed (const object *op, tag_t old_tag)
2624{
2625 /* checking for FLAG_FREED isn't necessary, but makes this function more
2626 * robust */
2627 return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2628}
2629
2630/* GROS - Creates an object using a string representing its content. */ 2640/* GROS - Creates an object using a string representing its content. */
2631
2632/* Basically, we save the content of the string to a temp file, then call */ 2641/* Basically, we save the content of the string to a temp file, then call */
2633
2634/* load_object on it. I admit it is a highly inefficient way to make things, */ 2642/* load_object on it. I admit it is a highly inefficient way to make things, */
2635
2636/* but it was simple to make and allows reusing the load_object function. */ 2643/* but it was simple to make and allows reusing the load_object function. */
2637
2638/* Remember not to use load_object_str in a time-critical situation. */ 2644/* Remember not to use load_object_str in a time-critical situation. */
2639
2640/* Also remember that multiparts objects are not supported for now. */ 2645/* Also remember that multiparts objects are not supported for now. */
2641 2646
2642object * 2647object *
2643load_object_str (const char *obstr) 2648load_object_str (const char *obstr)
2644{ 2649{
2645 object * 2650 object *op;
2646 op;
2647 char
2648 filename[MAX_BUF]; 2651 char filename[MAX_BUF];
2649 2652
2650 sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir); 2653 sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2651 2654
2652 FILE *
2653 tempfile = fopen (filename, "w"); 2655 FILE *tempfile = fopen (filename, "w");
2654 2656
2655 if (tempfile == NULL) 2657 if (tempfile == NULL)
2656 { 2658 {
2657 LOG (llevError, "Error - Unable to access load object temp file\n"); 2659 LOG (llevError, "Error - Unable to access load object temp file\n");
2658 return NULL; 2660 return NULL;
2659 }; 2661 }
2662
2660 fprintf (tempfile, obstr); 2663 fprintf (tempfile, obstr);
2661 fclose (tempfile); 2664 fclose (tempfile);
2662 2665
2663 op = get_object (); 2666 op = get_object ();
2664 2667
2678 * returns NULL if no match. 2681 * returns NULL if no match.
2679 */ 2682 */
2680object * 2683object *
2681find_obj_by_type_subtype (const object *who, int type, int subtype) 2684find_obj_by_type_subtype (const object *who, int type, int subtype)
2682{ 2685{
2683 object * 2686 object *tmp;
2684 tmp;
2685 2687
2686 for (tmp = who->inv; tmp; tmp = tmp->below) 2688 for (tmp = who->inv; tmp; tmp = tmp->below)
2687 if (tmp->type == type && tmp->subtype == subtype) 2689 if (tmp->type == type && tmp->subtype == subtype)
2688 return tmp; 2690 return tmp;
2689 2691
2697 * do the desired thing. 2699 * do the desired thing.
2698 */ 2700 */
2699key_value * 2701key_value *
2700get_ob_key_link (const object *ob, const char *key) 2702get_ob_key_link (const object *ob, const char *key)
2701{ 2703{
2702 key_value * 2704 key_value *link;
2703 link;
2704 2705
2705 for (link = ob->key_values; link != NULL; link = link->next) 2706 for (link = ob->key_values; link != NULL; link = link->next)
2706 {
2707 if (link->key == key) 2707 if (link->key == key)
2708 {
2709 return link; 2708 return link;
2710 }
2711 }
2712 2709
2713 return NULL; 2710 return NULL;
2714} 2711}
2715 2712
2716/* 2713/*
2721 * The returned string is shared. 2718 * The returned string is shared.
2722 */ 2719 */
2723const char * 2720const char *
2724get_ob_key_value (const object *op, const char *const key) 2721get_ob_key_value (const object *op, const char *const key)
2725{ 2722{
2726 key_value * 2723 key_value *link;
2727 link; 2724 shstr_cmp canonical_key (key);
2728 const char *
2729 canonical_key;
2730 2725
2731 canonical_key = shstr::find (key);
2732
2733 if (canonical_key == NULL) 2726 if (!canonical_key)
2734 { 2727 {
2735 /* 1. There being a field named key on any object 2728 /* 1. There being a field named key on any object
2736 * implies there'd be a shared string to find. 2729 * implies there'd be a shared string to find.
2737 * 2. Since there isn't, no object has this field. 2730 * 2. Since there isn't, no object has this field.
2738 * 3. Therefore, *this* object doesn't have this field. 2731 * 3. Therefore, *this* object doesn't have this field.
2739 */ 2732 */
2740 return NULL; 2733 return 0;
2741 } 2734 }
2742 2735
2743 /* This is copied from get_ob_key_link() above - 2736 /* This is copied from get_ob_key_link() above -
2744 * only 4 lines, and saves the function call overhead. 2737 * only 4 lines, and saves the function call overhead.
2745 */ 2738 */
2746 for (link = op->key_values; link != NULL; link = link->next) 2739 for (link = op->key_values; link; link = link->next)
2747 {
2748 if (link->key == canonical_key) 2740 if (link->key == canonical_key)
2749 {
2750 return link->value; 2741 return link->value;
2751 } 2742
2752 }
2753 return NULL; 2743 return 0;
2754} 2744}
2755 2745
2756 2746
2757/* 2747/*
2758 * Updates the canonical_key in op to value. 2748 * Updates the canonical_key in op to value.
2844 shstr key_ (key); 2834 shstr key_ (key);
2845 2835
2846 return set_ob_key_value_s (op, key_, value, add_key); 2836 return set_ob_key_value_s (op, key_, value, add_key);
2847} 2837}
2848 2838
2839object::depth_iterator::depth_iterator (object *container)
2840: iterator_base (container)
2841{
2842 while (item->inv)
2843 item = item->inv;
2844}
2845
2849void 2846void
2850object::deep_iterator::next () 2847object::depth_iterator::next ()
2851{ 2848{
2852 if (item->inv)
2853 item = item->inv;
2854 else if (item->below) 2849 if (item->below)
2850 {
2855 item = item->below; 2851 item = item->below;
2852
2853 while (item->inv)
2854 item = item->inv;
2855 }
2856 else 2856 else
2857 item = item->env->below; 2857 item = item->env;
2858} 2858}
2859
2860// return a suitable string describing an objetc in enough detail to find it
2861const char *
2862object::debug_desc (char *info) const
2863{
2864 char info2[256 * 3];
2865 char *p = info;
2866
2867 p += snprintf (p, 256, "%d=\"%s%s%s\"",
2868 count,
2869 &name,
2870 title ? " " : "",
2871 title ? (const char *)title : "");
2872
2873 if (env)
2874 p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2875
2876 if (map)
2877 p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
2878
2879 return info;
2880}
2881
2882const char *
2883object::debug_desc () const
2884{
2885 static char info[256 * 3];
2886 return debug_desc (info);
2887}
2888

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