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Comparing deliantra/server/common/object.C (file contents):
Revision 1.4 by root, Sat Aug 26 23:36:30 2006 UTC vs.
Revision 1.41 by root, Thu Sep 14 01:12:28 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.4 2006/08/26 23:36:30 root Exp $";
4	*/
5		1
6	/*	2	/*
7	CrossFire, A Multiplayer game for X-windows	3	CrossFire, A Multiplayer game for X-windows
8		4
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	Copyright (C) 2001 Mark Wedel & Crossfire Development Team
…		…
28		24
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	25	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying	26	sub/add_weight will transcend the environment updating the carrying
31	variable. */	27	variable. */
32	#include <global.h>	28	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	29	#include <stdio.h>
35	#include <sys/types.h>	30	#include <sys/types.h>
36	#include <sys/uio.h>	31	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	32	#include <object.h>
39	#include <funcpoint.h>	33	#include <funcpoint.h>
40	#include <skills.h>
41	#include <loader.h>	34	#include <loader.h>
42	#ifdef MEMORY_DEBUG	35
43	int nroffreeobjects = 0;
44	int nrofallocobjects = 0;	36	int nrofallocobjects = 0;
45	#undef OBJ_EXPAND	37	static UUID uuid;
46	#define OBJ_EXPAND 1	38	const uint64 UUID_SKIP = 1<<19;
47	#else
48	object objarray[STARTMAX]; /* All objects, allocated this way at first */
49	int nroffreeobjects = STARTMAX; /* How many OBs allocated and free (free) */
50	int nrofallocobjects = STARTMAX; /* How many OBs allocated (free + used) */
51	#endif
52		39
53	object *objects; /* Pointer to the list of used objects */	40	object *objects; /* Pointer to the list of used objects */
54	object *free_objects; /* Pointer to the list of unused objects */
55	object *active_objects; /* List of active objects that need to be processed */	41	object *active_objects; /* List of active objects that need to be processed */
56		42
57	short freearr_x[SIZEOFFREE]=	43	short 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,
58	{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,
59	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	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
60	short freearr_y[SIZEOFFREE]=	45	};
61	{0,-1,-1,0,1,1,1,0,-1,-2,-2,-2,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,	46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
62	-3,-3,-3,-3,-2,-1,0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3};	47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
63	int maxfree[SIZEOFFREE]=	48	};
64	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,	49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
65	48,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49};	50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		51	};
66	int freedir[SIZEOFFREE]= {	52	int freedir[SIZEOFFREE] = {
67	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	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,
68	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	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		55	};
69		56
		57	static void
		58	write_uuid (void)
		59	{
		60	char filename1[MAX_BUF], filename2[MAX_BUF];
		61
		62	sprintf (filename1, "%s/uuid", settings.localdir);
		63	sprintf (filename2, "%s/uuid~", settings.localdir);
		64
		65	FILE *fp;
		66
		67	if (!(fp = fopen (filename2, "w")))
		68	{
		69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		70	return;
		71	}
		72
		73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		74	fclose (fp);
		75	rename (filename2, filename1);
		76	}
		77
		78	static void
		79	read_uuid (void)
		80	{
		81	char filename[MAX_BUF];
		82
		83	sprintf (filename, "%s/uuid", settings.localdir);
		84
		85	FILE *fp;
		86
		87	if (!(fp = fopen (filename, "r")))
		88	{
		89	if (errno == ENOENT)
		90	{
		91	LOG (llevInfo, "RESET uid to 1\n");
		92	uuid.seq = 0;
		93	write_uuid ();
		94	return;
		95	}
		96
		97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		98	_exit (1);
		99	}
		100
		101	int version;
		102	unsigned long long uid;
		103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		104	{
		105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		106	_exit (1);
		107	}
		108
		109	uuid.seq = uid;
		110	write_uuid ();
		111	LOG (llevDebug, "read UID: %lld\n", uid);
		112	fclose (fp);
		113	}
		114
		115	UUID
		116	gen_uuid ()
		117	{
		118	UUID uid;
		119
		120	uid.seq = ++uuid.seq;
		121
		122	if (!(uuid.seq & (UUID_SKIP - 1)))
		123	write_uuid ();
		124
		125	return uid;
		126	}
		127
		128	void
		129	init_uuid ()
		130	{
		131	read_uuid ();
		132	}
70		133
71	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		135	static int
72	static int compare_ob_value_lists_one(const object * wants, const object * has) {	136	compare_ob_value_lists_one (const object *wants, const object *has)
		137	{
73	key_value * wants_field;	138	key_value *wants_field;
74		139
75	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
76	* objects with lists are rare, and lists stay short. If not, use a	141	* objects with lists are rare, and lists stay short. If not, use a
77	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
78	*/	143	*/
79		144
80	/* For each field in wants, */	145	/* For each field in wants, */
81	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)
		147	{
82	key_value * has_field;	148	key_value *has_field;
83		149
84	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
85	has_field = get_ob_key_link(has, wants_field->key);	151	has_field = get_ob_key_link (has, wants_field->key);
		152
		153	if (has_field == NULL)
86		154	{
87	if (has_field == NULL) {
88	/* No field with that name. */	155	/* No field with that name. */
89	return FALSE;	156	return FALSE;
90	}
91		157	}
		158
92	/* Found the matching field. */	159	/* Found the matching field. */
93	if (has_field->value != wants_field->value) {	160	if (has_field->value != wants_field->value)
		161	{
94	/* Values don't match, so this half of the comparison is false. */	162	/* Values don't match, so this half of the comparison is false. */
95	return FALSE;	163	return FALSE;
96	}	164	}
97		165
98	/* If we get here, we found a match. Now for the next field in wants. */	166	/* If we get here, we found a match. Now for the next field in wants. */
99	}
100		167	}
		168
101	/* If we get here, every field in wants has a matching field in has. */	169	/* If we get here, every field in wants has a matching field in has. */
102	return TRUE;	170	return TRUE;
103	}	171	}
104		172
105	/* Returns TRUE if ob1 has the same key_values as ob2. */	173	/* Returns TRUE if ob1 has the same key_values as ob2. */
		174	static int
106	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	175	compare_ob_value_lists (const object *ob1, const object *ob2)
		176	{
107	/* However, there may be fields in has which aren't partnered in wants,	177	/* However, there may be fields in has which aren't partnered in wants,
108	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
109	*/	179	*/
110	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
111	}	181	}
112		182
113	/* Function examines the 2 objects given to it, and returns true if	183	/* Function examines the 2 objects given to it, and returns true if
114	* they can be merged together.	184	* they can be merged together.
115	*	185	*
…		…
121	*	191	*
122	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
123	* check weight	193	* check weight
124	*/	194	*/
125		195
126	int CAN_MERGE(object *ob1, object *ob2) {	196	bool object::can_merge (object *ob1, object *ob2)
127		197	{
128	/* A couple quicksanity checks */	198	/* A couple quicksanity checks */
129	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	199	if ((ob1 == ob2) || (ob1->type != ob2->type))
		200	return 0;
130		201
131	if (ob1->speed != ob2->speed) return 0;	202	if (ob1->speed != ob2->speed)
132	/* Note sure why the following is the case - either the object has to
133	* be animated or have a very low speed. Is this an attempted monster
134	* check?
135	*/
136	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)
137	return 0;	203	return 0;
138		204
139	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	205	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
140	* value could not be stored in a sint32 (which unfortunately sometimes is	206	* value could not be stored in a sint32 (which unfortunately sometimes is
141	* used to store nrof).	207	* used to store nrof).
142	*/	208	*/
143	if (ob1->nrof+ob2->nrof >= 1UL<<31)	209	if (ob1->nrof + ob2->nrof >= 1UL << 31)
144	return 0;	210	return 0;
145		211
146	/* This is really a spellbook check - really, we should
147	* check all objects in the inventory.
148	*/
149	if (ob1->inv || ob2->inv) {
150	/* if one object has inventory but the other doesn't, not equiv */
151	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) return 0;
152
153	/* Now check to see if the two inventory objects could merge */
154	if (!CAN_MERGE(ob1->inv, ob2->inv)) return 0;
155
156	/* inventory ok - still need to check rest of this object to see
157	* if it is valid.
158	*/
159	}
160
161	/* If the objects have been identified, set the BEEN_APPLIED flag.	212	/* If the objects have been identified, set the BEEN_APPLIED flag.
162	* This is to the comparison of the flags below will be OK. We	213	* This is to the comparison of the flags below will be OK. We
163	* just can't ignore the been applied or identified flags, as they	214	* just can't ignore the been applied or identified flags, as they
164	* are not equal - just if it has been identified, the been_applied	215	* are not equal - just if it has been identified, the been_applied
165	* flags lose any meaning.	216	* flags lose any meaning.
166	*/	217	*/
167	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))	218	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
168	SET_FLAG(ob1, FLAG_BEEN_APPLIED);	219	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
169		220
170	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))	221	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
171	SET_FLAG(ob2, FLAG_BEEN_APPLIED);	222	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
172		223
173		224
174	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	225	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
175	* being locked in inventory should prevent merging.	226	* being locked in inventory should prevent merging.
176	* 0x4 in flags3 is CLIENT_SENT	227	* 0x4 in flags3 is CLIENT_SENT
177	*/	228	*/
178	if ((ob1->arch != ob2->arch) ||	229	if ((ob1->arch != ob2->arch) ||
179	(ob1->flags[0] != ob2->flags[0]) ||	230	(ob1->flags[0] != ob2->flags[0]) ||
180	(ob1->flags[1] != ob2->flags[1]) ||	231	(ob1->flags[1] != ob2->flags[1]) ||
181	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||	232	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
182	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||	233	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
183	(ob1->name != ob2->name) ||	234	(ob1->name != ob2->name) ||
184	(ob1->title != ob2->title) ||	235	(ob1->title != ob2->title) ||
185	(ob1->msg != ob2->msg) ||	236	(ob1->msg != ob2->msg) ||
186	(ob1->weight != ob2->weight) ||	237	(ob1->weight != ob2->weight) ||
187	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||	238	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
188	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||	239	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
189	(ob1->attacktype != ob2->attacktype) ||	240	(ob1->attacktype != ob2->attacktype) ||
190	(ob1->magic != ob2->magic) ||	241	(ob1->magic != ob2->magic) ||
191	(ob1->slaying != ob2->slaying) ||	242	(ob1->slaying != ob2->slaying) ||
192	(ob1->skill != ob2->skill) ||	243	(ob1->skill != ob2->skill) ||
193	(ob1->value != ob2->value) ||	244	(ob1->value != ob2->value) ||
194	(ob1->animation_id != ob2->animation_id) ||	245	(ob1->animation_id != ob2->animation_id) ||
195	(ob1->client_type != ob2->client_type) ||	246	(ob1->client_type != ob2->client_type) ||
196	(ob1->materialname != ob2->materialname) ||	247	(ob1->materialname != ob2->materialname) ||
197	(ob1->lore != ob2->lore) ||	248	(ob1->lore != ob2->lore) ||
198	(ob1->subtype != ob2->subtype) ||	249	(ob1->subtype != ob2->subtype) ||
199	(ob1->move_type != ob2->move_type) ||	250	(ob1->move_type != ob2->move_type) ||
200	(ob1->move_block != ob2->move_block) ||	251	(ob1->move_block != ob2->move_block) ||
201	(ob1->move_allow != ob2->move_allow) ||	252	(ob1->move_allow != ob2->move_allow) ||
202	(ob1->move_on != ob2->move_on) ||	253	(ob1->move_on != ob2->move_on) ||
203	(ob1->move_off != ob2->move_off) ||	254	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))
204	(ob1->move_slow != ob2->move_slow) ||
205	(ob1->move_slow_penalty != ob2->move_slow_penalty)
206	)
207	return 0;	255	return 0;
208		256
		257	/* This is really a spellbook check - really, we should
		258	* check all objects in the inventory.
		259	*/
		260	if (ob1->inv || ob2->inv)
		261	{
		262	/* if one object has inventory but the other doesn't, not equiv */
		263	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
		264	return 0;
		265
		266	/* Now check to see if the two inventory objects could merge */
		267	if (!CAN_MERGE (ob1->inv, ob2->inv))
		268	return 0;
		269
		270	/* inventory ok - still need to check rest of this object to see
		271	* if it is valid.
		272	*/
		273	}
		274
209	/* Don't merge objects that are applied. With the new 'body' code,	275	/* Don't merge objects that are applied. With the new 'body' code,
210	* it is possible for most any character to have more than one of	276	* it is possible for most any character to have more than one of
211	* some items equipped, and we don't want those to merge.	277	* some items equipped, and we don't want those to merge.
212	*/	278	*/
213	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	279	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
214	return 0;	280	return 0;
215		281
		282	/* Note sure why the following is the case - either the object has to
		283	* be animated or have a very low speed. Is this an attempted monster
		284	* check?
		285	*/
		286	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
		287	return 0;
		288
216	switch (ob1->type) {	289	switch (ob1->type)
		290	{
217	case SCROLL:	291	case SCROLL:
218	if (ob1->level != ob2->level) return 0;	292	if (ob1->level != ob2->level)
		293	return 0;
219	break;	294	break;
220
221	}	295	}
		296
222	if (ob1->key_values != NULL || ob2->key_values != NULL) {	297	if (ob1->key_values != NULL || ob2->key_values != NULL)
		298	{
223	/* At least one of these has key_values. */	299	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {	300	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
225	/* One has fields, but the other one doesn't. */	301	/* One has fields, but the other one doesn't. */
226	return 0;	302	return 0;
227	} else if (!compare_ob_value_lists(ob1, ob2)) {	303	else if (!compare_ob_value_lists (ob1, ob2))
228	return 0;	304	return 0;
229	}	305	}
		306
		307	//TODO: generate an event or call into perl for additional checks
		308	if (ob1->self || ob2->self)
230	}	309	{
		310	ob1->optimise ();
		311	ob2->optimise ();
231		312
		313	if (ob1->self || ob2->self)
		314	return 0;
		315	}
		316
232	/* Everything passes, must be OK. */	317	/* Everything passes, must be OK. */
233	return 1;	318	return 1;
234	}	319	}
235		320
236	/*	321	/*
237	* sum_weight() is a recursive function which calculates the weight	322	* sum_weight() is a recursive function which calculates the weight
238	* an object is carrying. It goes through in figures out how much	323	* an object is carrying. It goes through in figures out how much
239	* containers are carrying, and sums it up.	324	* containers are carrying, and sums it up.
240	*/	325	*/
241	signed long sum_weight(object *op) {	326	long
		327	sum_weight (object *op)
		328	{
242	signed long sum;	329	long sum;
243	object *inv;	330	object *inv;
		331
244	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	332	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		333	{
245	if (inv->inv)	334	if (inv->inv)
246	sum_weight(inv);	335	sum_weight (inv);
247	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	336	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
248	}	337	}
		338
249	if (op->type == CONTAINER && op->stats.Str)	339	if (op->type == CONTAINER && op->stats.Str)
250	sum = (sum * (100 - op->stats.Str))/100;	340	sum = (sum * (100 - op->stats.Str)) / 100;
		341
251	if(op->carrying != sum)	342	if (op->carrying != sum)
252	op->carrying = sum;	343	op->carrying = sum;
		344
253	return sum;	345	return sum;
254	}	346	}
255		347
256	/**	348	/**
257	* Return the outermost environment object for a given object.	349	* Return the outermost environment object for a given object.
258	*/	350	*/
259		351
		352	object *
260	object *object_get_env_recursive (object *op) {	353	object_get_env_recursive (object *op)
		354	{
261	while (op->env != NULL)	355	while (op->env != NULL)
262	op = op->env;	356	op = op->env;
263	return op;	357	return op;
264	}	358	}
265		359
266	/*	360	/*
267	* Eneq(@csd.uu.se): Since we can have items buried in a character we need	361	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
268	* a better check. We basically keeping traversing up until we can't	362	* a better check. We basically keeping traversing up until we can't
269	* or find a player.	363	* or find a player.
270	*/	364	*/
271		365
		366	object *
272	object *is_player_inv (object *op) {	367	is_player_inv (object *op)
		368	{
273	for (;op!=NULL&&op->type!=PLAYER; op=op->env)	369	for (; op != NULL && op->type != PLAYER; op = op->env)
274	if (op->env==op)	370	if (op->env == op)
275	op->env = NULL;	371	op->env = NULL;
276	return op;	372	return op;
277	}	373	}
278		374
279	/*	375	/*
280	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	376	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
281	* Some error messages.	377	* Some error messages.
282	* The result of the dump is stored in the static global errmsg array.	378	* The result of the dump is stored in the static global errmsg array.
283	*/	379	*/
284		380
		381	void
285	void dump_object2(object *op) {	382	dump_object2 (object *op)
		383	{
		384	errmsg[0] = 0;
		385	return;
		386	//TODO//D#d#
		387	#if 0
286	char *cp;	388	char *cp;
		389
287	/* object *tmp;*/	390	/* object *tmp;*/
288		391
289	if(op->arch!=NULL) {	392	if (op->arch != NULL)
		393	{
290	strcat(errmsg,"arch ");	394	strcat (errmsg, "arch ");
291	strcat(errmsg,op->arch->name?op->arch->name:"(null)");	395	strcat (errmsg, op->arch->name ? op->arch->name : "(null)");
292	strcat(errmsg,"\n");	396	strcat (errmsg, "\n");
293	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)	397	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
294	strcat(errmsg,cp);	398	strcat (errmsg, cp);
295	#if 0	399	# if 0
296	/* Don't dump player diffs - they are too long, mostly meaningless, and	400	/* Don't dump player diffs - they are too long, mostly meaningless, and
297	* will overflow the buffer.	401	* will overflow the buffer.
298	* Changed so that we don't dump inventory either. This may	402	* Changed so that we don't dump inventory either. This may
299	* also overflow the buffer.	403	* also overflow the buffer.
300	*/	404	*/
301	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)	405	if (op->type != PLAYER && (cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
302	strcat(errmsg,cp);	406	strcat (errmsg, cp);
303	for (tmp=op->inv; tmp; tmp=tmp->below)	407	for (tmp = op->inv; tmp; tmp = tmp->below)
304	dump_object2(tmp);	408	dump_object2 (tmp);
		409	# endif
		410	strcat (errmsg, "end\n");
		411	}
		412	else
		413	{
		414	strcat (errmsg, "Object ");
		415	if (op->name == NULL)
		416	strcat (errmsg, "(null)");
		417	else
		418	strcat (errmsg, op->name);
		419	strcat (errmsg, "\n");
		420	# if 0
		421	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
		422	strcat (errmsg, cp);
		423	for (tmp = op->inv; tmp; tmp = tmp->below)
		424	dump_object2 (tmp);
		425	# endif
		426	strcat (errmsg, "end\n");
		427	}
305	#endif	428	#endif
306	strcat(errmsg,"end\n");
307	} else {
308	strcat(errmsg,"Object ");
309	if (op->name==NULL) strcat(errmsg, "(null)");
310	else strcat(errmsg,op->name);
311	strcat(errmsg,"\n");
312	#if 0
313	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
314	strcat(errmsg,cp);
315	for (tmp=op->inv; tmp; tmp=tmp->below)
316	dump_object2(tmp);
317	#endif
318	strcat(errmsg,"end\n");
319	}
320	}	429	}
321		430
322	/*	431	/*
323	* Dumps an object. Returns output in the static global errmsg array.	432	* Dumps an object. Returns output in the static global errmsg array.
324	*/	433	*/
325		434
		435	void
326	void dump_object(object *op) {	436	dump_object (object *op)
		437	{
327	if(op==NULL) {	438	if (op == NULL)
		439	{
328	strcpy(errmsg,"[NULL pointer]");	440	strcpy (errmsg, "[NULL pointer]");
329	return;	441	return;
330	}	442	}
331	errmsg[0]='\0';	443	errmsg[0] = '\0';
332	dump_object2(op);	444	dump_object2 (op);
333	}	445	}
334		446
335	/* GROS - Dumps an object. Return the result into a string */	447	void
336	/* Note that no checking is done for the validity of the target string, so */
337	/* you need to be sure that you allocated enough space for it. */
338	void dump_me(object *op, char *outstr)
339	{
340	char *cp;
341
342	if(op==NULL)
343	{
344	strcpy(outstr,"[NULL pointer]");
345	return;
346	}
347	outstr[0]='\0';
348
349	if(op->arch!=NULL)
350	{
351	strcat(outstr,"arch ");
352	strcat(outstr,op->arch->name?op->arch->name:"(null)");
353	strcat(outstr,"\n");
354	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
355	strcat(outstr,cp);
356	strcat(outstr,"end\n");
357	}
358	else
359	{
360	strcat(outstr,"Object ");
361	if (op->name==NULL)
362	strcat(outstr, "(null)");
363	else
364	strcat(outstr,op->name);
365	strcat(outstr,"\n");
366	strcat(outstr,"end\n");
367	}
368	}
369
370	/*
371	* This is really verbose...Can be triggered by the P key while in DM mode.
372	* All objects are dumped to stderr (or alternate logfile, if in server-mode)
373	*/
374
375	void dump_all_objects(void) {	448	dump_all_objects (void)
		449	{
376	object *op;	450	object *op;
		451
377	for(op=objects;op!=NULL;op=op->next) {	452	for (op = objects; op != NULL; op = op->next)
		453	{
378	dump_object(op);	454	dump_object (op);
379	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);	455	fprintf (logfile, "Object %d\n:%s\n", op->count, errmsg);
380	}	456	}
381	}	457	}
382		458
383	/*	459	/*
384	* get_nearest_part(multi-object, object 2) returns the part of the	460	* get_nearest_part(multi-object, object 2) returns the part of the
385	* multi-object 1 which is closest to the second object.	461	* multi-object 1 which is closest to the second object.
386	* If it's not a multi-object, it is returned.	462	* If it's not a multi-object, it is returned.
387	*/	463	*/
388		464
		465	object *
389	object *get_nearest_part(object *op, const object *pl) {	466	get_nearest_part (object *op, const object *pl)
		467	{
390	object *tmp,*closest;	468	object *tmp, *closest;
391	int last_dist,i;	469	int last_dist, i;
		470
392	if(op->more==NULL)	471	if (op->more == NULL)
393	return op;	472	return op;
394	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	473	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
395	if((i=distance(tmp,pl))<last_dist)	474	if ((i = distance (tmp, pl)) < last_dist)
396	closest=tmp,last_dist=i;	475	closest = tmp, last_dist = i;
397	return closest;	476	return closest;
398	}	477	}
399		478
400	/*	479	/*
401	* Returns the object which has the count-variable equal to the argument.	480	* Returns the object which has the count-variable equal to the argument.
402	*/	481	*/
403		482
		483	object *
404	object *find_object(tag_t i) {	484	find_object (tag_t i)
		485	{
405	object *op;	486	object *op;
		487
406	for(op=objects;op!=NULL;op=op->next)	488	for (op = objects; op != NULL; op = op->next)
407	if(op->count==i)	489	if (op->count == i)
408	break;	490	break;
409	return op;	491	return op;
410	}	492	}
411		493
412	/*	494	/*
413	* Returns the first object which has a name equal to the argument.	495	* Returns the first object which has a name equal to the argument.
414	* Used only by the patch command, but not all that useful.	496	* Used only by the patch command, but not all that useful.
415	* Enables features like "patch <name-of-other-player> food 999"	497	* Enables features like "patch <name-of-other-player> food 999"
416	*/	498	*/
417		499
		500	object *
418	object *find_object_name(const char *str) {	501	find_object_name (const char *str)
419	const char *name=add_string(str);	502	{
		503	shstr_cmp str_ (str);
420	object *op;	504	object *op;
		505
421	for(op=objects;op!=NULL;op=op->next)	506	for (op = objects; op != NULL; op = op->next)
422	if(op->name==name)	507	if (op->name == str_)
423	break;	508	break;
424	free_string(name);	509
425	return op;	510	return op;
426	}	511	}
427		512
		513	void
428	void free_all_object_data(void) {	514	free_all_object_data ()
429	#ifdef MEMORY_DEBUG	515	{
430	object *op, *next;	516	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
431
432	for (op=free_objects; op!=NULL; ) {
433	next=op->next;
434	free(op);
435	nrofallocobjects--;
436	nroffreeobjects--;
437	op=next;
438	}
439	#endif
440	LOG(llevDebug,"%d allocated objects, %d free objects, STARMAX=%d\n",
441	nrofallocobjects, nroffreeobjects,STARTMAX);
442	}	517	}
443		518
444	/*	519	/*
445	* Returns the object which this object marks as being the owner.	520	* Returns the object which this object marks as being the owner.
446	* A id-scheme is used to avoid pointing to objects which have been	521	* A id-scheme is used to avoid pointing to objects which have been
…		…
449	* Changed 2004-02-12 - if the player is setting at the play again	524	* Changed 2004-02-12 - if the player is setting at the play again
450	* prompt, he is removed, and we don't want to treat him as an owner of	525	* prompt, he is removed, and we don't want to treat him as an owner of
451	* anything, so check removed flag. I don't expect that this should break	526	* anything, so check removed flag. I don't expect that this should break
452	* anything - once an object is removed, it is basically dead anyways.	527	* anything - once an object is removed, it is basically dead anyways.
453	*/	528	*/
		529	object *
		530	object::get_owner ()
		531	{
		532	if (!owner
		533	|| QUERY_FLAG (owner, FLAG_FREED)
		534	|| QUERY_FLAG (owner, FLAG_REMOVED))
		535	owner = 0;
454		536
455	object *get_owner(object *op) {
456	if(op->owner==NULL)
457	return NULL;
458
459	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
460	op->owner->count==op->ownercount)
461	return op->owner;	537	return owner;
462
463	op->owner=NULL;
464	op->ownercount=0;
465	return NULL;
466	}	538	}
467
468	void clear_owner(object *op)
469	{
470	if (!op) return;
471
472	if (op->owner && op->ownercount == op->owner->count)
473	op->owner->refcount--;
474
475	op->owner = NULL;
476	op->ownercount = 0;
477	}
478
479
480		539
481	/*	540	/*
482	* Sets the owner and sets the skill and exp pointers to owner's current	541	* Sets the owner and sets the skill and exp pointers to owner's current
483	* skill and experience objects.	542	* skill and experience objects.
484	*/	543	*/
485	void set_owner (object *op, object *owner)	544	void
		545	object::set_owner (object *owner)
486	{	546	{
487	if(owner==NULL||op==NULL)	547	if (!owner)
488	return;	548	return;
489		549
490	/* next line added to allow objects which own objects */	550	/* next line added to allow objects which own objects */
491	/* Add a check for ownercounts in here, as I got into an endless loop	551	/* Add a check for ownercounts in here, as I got into an endless loop
492	* with the fireball owning a poison cloud which then owned the	552	* with the fireball owning a poison cloud which then owned the
493	* fireball. I believe that was caused by one of the objects getting	553	* fireball. I believe that was caused by one of the objects getting
494	* freed and then another object replacing it. Since the ownercounts	554	* freed and then another object replacing it. Since the ownercounts
495	* didn't match, this check is valid and I believe that cause is valid.	555	* didn't match, this check is valid and I believe that cause is valid.
496	*/	556	*/
497	while (owner->owner && owner!=owner->owner &&	557	while (owner->owner)
498	owner->ownercount==owner->owner->count) owner=owner->owner;	558	owner = owner->owner;
499		559
500	/* IF the owner still has an owner, we did not resolve to a final owner.
501	* so lets not add to that.
502	*/
503	if (owner->owner) return;
504
505	op->owner=owner;	560	this->owner = owner;
506
507	op->ownercount=owner->count;
508	owner->refcount++;
509
510	}
511
512	/* Set the owner to clone's current owner and set the skill and experience
513	* objects to clone's objects (typically those objects that where the owner's
514	* current skill and experience objects at the time when clone's owner was
515	* set - not the owner's current skill and experience objects).
516	*
517	* Use this function if player created an object (e.g. fire bullet, swarm
518	* spell), and this object creates further objects whose kills should be
519	* accounted for the player's original skill, even if player has changed
520	* skills meanwhile.
521	*/
522	void copy_owner (object *op, object *clone)
523	{
524	object *owner = get_owner (clone);
525	if (owner == NULL) {
526	/* players don't have owners - they own themselves. Update
527	* as appropriate.
528	*/
529	if (clone->type == PLAYER) owner=clone;
530	else return;
531	}
532	set_owner(op, owner);
533
534	}
535
536	/*
537	* Resets vital variables in an object
538	*/
539
540	void reset_object(object *op) {
541
542	op->name = NULL;
543	op->name_pl = NULL;
544	op->title = NULL;
545	op->race = NULL;
546	op->slaying = NULL;
547	op->skill = NULL;
548	op->msg = NULL;
549	op->materialname = NULL;
550	op->lore = NULL;
551	op->current_weapon_script = NULL;
552	clear_object(op);
553	}	561	}
554		562
555	/* Zero the key_values on op, decrementing the shared-string	563	/* Zero the key_values on op, decrementing the shared-string
556	* refcounts and freeing the links.	564	* refcounts and freeing the links.
557	*/	565	*/
		566	static void
558	static void free_key_values(object * op) {	567	free_key_values (object *op)
559	key_value * i;	568	{
560	key_value * next = NULL;	569	for (key_value *i = op->key_values; i != 0;)
561		570	{
562	if (op->key_values == NULL) return;	571	key_value *next = i->next;
		572	delete i;
		573
		574	i = next;
563		575	}
564	for (i = op->key_values; i != NULL; i = next) {	576
565	/* Store next *first*. */
566	next = i->next;
567
568	if (i->key) FREE_AND_CLEAR_STR(i->key);
569	if (i->value) FREE_AND_CLEAR_STR(i->value);
570	i->next = NULL;
571	free(i);
572	}
573
574	op->key_values = NULL;	577	op->key_values = 0;
575	}	578	}
576		579
		580	void object::clear ()
		581	{
		582	attachable_base::clear ();
577		583
578	/*
579	* clear_object() frees everything allocated by an object, and also
580	* clears all variables and flags to default settings.
581	*/
582
583	void clear_object(object *op) {
584	op->clear ();
585
586	event *evt;
587	event *evt2;
588
589	/* redo this to be simpler/more efficient. Was also seeing
590	* crashes in the old code. Move this to the top - am
591	* seeing periodic crashes in this code, and would like to have
592	* as much info available as possible (eg, object name).
593	*/
594	for (evt = op->events; evt; evt=evt2) {
595	evt2 = evt->next;
596
597	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
598	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
599	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
600
601	free(evt);
602	}
603	op->events = NULL;
604
605	free_key_values(op);	584	free_key_values (this);
606		585
607	/* the memset will clear all these values for us, but we need	586	owner = 0;
608	* to reduce the refcount on them.	587	name = 0;
609	*/	588	name_pl = 0;
610	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);	589	title = 0;
611	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);	590	race = 0;
612	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);	591	slaying = 0;
613	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);	592	skill = 0;
614	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);	593	msg = 0;
615	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);	594	lore = 0;
616	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);	595	custom_name = 0;
617	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);	596	materialname = 0;
618	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);	597	contr = 0;
		598	below = 0;
		599	above = 0;
		600	inv = 0;
		601	container = 0;
		602	env = 0;
		603	more = 0;
		604	head = 0;
		605	map = 0;
		606	active_next = 0;
		607	active_prev = 0;
619		608
		609	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
620		610
621	memset((void*)op, 0, sizeof (object_special));
622	/* Below here, we clear things that are not done by the memset,
623	* or set default values that are not zero.
624	*/
625	/* This is more or less true */
626	SET_FLAG(op, FLAG_REMOVED);	611	SET_FLAG (this, FLAG_REMOVED);
627		612
628
629	op->contr = NULL;
630	op->below=NULL;
631	op->above=NULL;
632	op->inv=NULL;
633	op->events=NULL;
634	op->container=NULL;
635	op->env=NULL;
636	op->more=NULL;
637	op->head=NULL;
638	op->map=NULL;
639	op->refcount=0;
640	op->active_next = NULL;
641	op->active_prev = NULL;
642	/* What is not cleared is next, prev, and count */	613	/* What is not cleared is next, prev, and count */
643		614
644	op->expmul=1.0;	615	expmul = 1.0;
645	op->face = blank_face;	616	face = blank_face;
646	op->attacked_by_count = (tag_t) -1;	617	attacked_by_count = -1;
		618
647	if (settings.casting_time)	619	if (settings.casting_time)
648	op->casting_time = -1;	620	casting_time = -1;
		621	}
649		622
		623	void object::clone (object *destination)
		624	{
		625	*(object_copy *)destination = *this;
		626	*(object_pod *)destination = *this;
		627
		628	if (self || cb)
		629	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
650	}	630	}
651		631
652	/*	632	/*
653	* copy object first frees everything allocated by the second object,	633	* copy object first frees everything allocated by the second object,
654	* and then copies the contends of the first object into the second	634	* and then copies the contends of the first object into the second
655	* object, allocating what needs to be allocated. Basically, any	635	* object, allocating what needs to be allocated. Basically, any
656	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	636	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
657	* if the first object is freed, the pointers in the new object	637	* if the first object is freed, the pointers in the new object
658	* will point at garbage.	638	* will point at garbage.
659	*/	639	*/
660		640	void
661	void copy_object(object *op2, object *op) {	641	copy_object (object *op2, object *op)
662	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);	642	{
663	event *evt, *evt2, *evt_new;	643	bool is_freed = QUERY_FLAG (op, FLAG_FREED);
		644	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);
664		645
665	op->clear ();
666
667	/* Decrement the refcounts, but don't bother zeroing the fields;
668	they'll be overwritten by memcpy. */
669	if(op->name!=NULL) free_string(op->name);
670	if(op->name_pl!=NULL) free_string(op->name_pl);
671	if(op->title!=NULL) free_string(op->title);
672	if(op->race!=NULL) free_string(op->race);
673	if(op->slaying!=NULL) free_string(op->slaying);
674	if(op->skill!=NULL) free_string(op->skill);
675	if(op->msg!=NULL) free_string(op->msg);
676	if(op->lore!=NULL) free_string(op->lore);
677	if(op->materialname != NULL) free_string(op->materialname);
678	if(op->custom_name != NULL) free_string(op->custom_name);
679
680	/* Basically, same code as from clear_object() */
681	for (evt = op->events; evt; evt=evt2) {
682	evt2 = evt->next;
683
684	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
685	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
686	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
687
688	free(evt);
689	}
690	op->events = NULL;
691
692	free_key_values(op);
693
694	*(object_special *)op = *(object_special *)op2;
695	op2->clone (op);	646	op2->clone (op);
696		647
697	if(is_freed) SET_FLAG(op,FLAG_FREED);	648	if (is_freed)
698	if(is_removed) SET_FLAG(op,FLAG_REMOVED);	649	SET_FLAG (op, FLAG_FREED);
699	if(op->name!=NULL) add_refcount(op->name);	650	if (is_removed)
700	if(op->name_pl!=NULL) add_refcount(op->name_pl);	651	SET_FLAG (op, FLAG_REMOVED);
701	if(op->title!=NULL) add_refcount(op->title);
702	if(op->race!=NULL) add_refcount(op->race);
703	if(op->slaying!=NULL) add_refcount(op->slaying);
704	if(op->skill!=NULL) add_refcount(op->skill);
705	if(op->lore!=NULL) add_refcount(op->lore);
706	if(op->msg!=NULL) add_refcount(op->msg);
707	if(op->custom_name!=NULL) add_refcount(op->custom_name);
708	if (op->materialname != NULL) add_refcount(op->materialname);
709		652
710	if((op2->speed<0) && !editor)	653	if (op2->speed < 0)
711	op->speed_left=op2->speed_left-RANDOM()%200/100.0;	654	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
712		655
713	/* Copy over event information */
714	evt2 = NULL;
715	for (evt = op2->events; evt; evt=evt->next) {
716	evt_new = (event *) malloc(sizeof(event));
717	memcpy(evt_new, evt, sizeof(event));
718	if (evt_new->hook) add_refcount(evt_new->hook);
719	if (evt_new->plugin) add_refcount(evt_new->plugin);
720	if (evt_new->options) add_refcount(evt_new->options);
721	evt_new->next = NULL;
722
723	/* Try to be a little clever here, and store away the
724	* last event we copied, so that its simpler to update the
725	* pointer.
726	*/
727	if (evt2)
728	evt2->next = evt_new;
729	else
730	op->events = evt_new;
731
732	evt2 = evt_new;
733	}
734	/* Copy over key_values, if any. */	656	/* Copy over key_values, if any. */
735	if (op2->key_values != NULL) {	657	if (op2->key_values)
736	key_value * tail = NULL;	658	{
		659	key_value *tail = 0;
737	key_value * i;	660	key_value *i;
738		661
739	op->key_values = NULL;	662	op->key_values = 0;
740		663
741	for (i = op2->key_values; i != NULL; i = i->next) {	664	for (i = op2->key_values; i; i = i->next)
742	key_value * new_link = (key_value *) malloc(sizeof(key_value));	665	{
		666	key_value *new_link = new key_value;
743		667
744	new_link->next = NULL;	668	new_link->next = 0;
745	new_link->key = add_refcount(i->key);	669	new_link->key = i->key;
746	if (i->value)	670	new_link->value = i->value;
747	new_link->value = add_refcount(i->value);
748	else
749	new_link->value = NULL;
750		671
751	/* Try and be clever here, too. */	672	/* Try and be clever here, too. */
752	if (op->key_values == NULL) {	673	if (!op->key_values)
		674	{
753	op->key_values = new_link;	675	op->key_values = new_link;
754	tail = new_link;	676	tail = new_link;
755	} else {	677	}
756	tail->next = new_link;	678	else
757	tail = new_link;	679	{
		680	tail->next = new_link;
		681	tail = new_link;
		682	}
		683	}
758	}	684	}
759	}
760	}
761		685
762	update_ob_speed(op);	686	update_ob_speed (op);
763	}
764
765	/*
766	* expand_objects() allocates more objects for the list of unused objects.
767	* It is called from get_object() if the unused list is empty.
768	*/
769
770	void expand_objects(void) {
771	int i;
772	object *obj;
773	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));
774
775	if(obj==NULL)
776	fatal(OUT_OF_MEMORY);
777	free_objects=obj;
778	obj[0].prev=NULL;
779	obj[0].next= &obj[1],
780	SET_FLAG(&(obj[0]), FLAG_REMOVED);
781	SET_FLAG(&(obj[0]), FLAG_FREED);
782
783	for(i=1;i<OBJ_EXPAND-1;i++) {
784	obj[i].next= &obj[i+1],
785	obj[i].prev= &obj[i-1],
786	SET_FLAG(&(obj[i]), FLAG_REMOVED);
787	SET_FLAG(&(obj[i]), FLAG_FREED);
788	}
789	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
790	obj[OBJ_EXPAND-1].next=NULL,
791	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
792	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
793
794	nrofallocobjects += OBJ_EXPAND;
795	nroffreeobjects += OBJ_EXPAND;
796	}
797
798	/*
799	* get_object() grabs an object from the list of unused objects, makes
800	* sure it is initialised, and returns it.
801	* If there are no free objects, expand_objects() is called to get more.
802	*/
803
804	object *get_object(void) {
805	object *op;
806
807	if(free_objects==NULL) {
808	expand_objects();
809	}
810	op=free_objects;
811	#ifdef MEMORY_DEBUG
812	/* The idea is hopefully by doing a realloc, the memory
813	* debugging program will now use the current stack trace to
814	* report leaks.
815	*/
816	op = realloc(op, sizeof(object));
817	SET_FLAG(op, FLAG_REMOVED);
818	SET_FLAG(op, FLAG_FREED);
819	#endif
820
821	if(!QUERY_FLAG(op,FLAG_FREED)) {
822	LOG(llevError,"Fatal: Getting busy object.\n");
823	}
824	free_objects=op->next;
825	if(free_objects!=NULL)
826	free_objects->prev=NULL;
827	op->count= ++ob_count;
828	op->name=NULL;
829	op->name_pl=NULL;
830	op->title=NULL;
831	op->race=NULL;
832	op->slaying=NULL;
833	op->skill = NULL;
834	op->lore=NULL;
835	op->msg=NULL;
836	op->materialname=NULL;
837	op->next=objects;
838	op->prev=NULL;
839	op->active_next = NULL;
840	op->active_prev = NULL;
841	if(objects!=NULL)
842	objects->prev=op;
843	objects=op;
844	clear_object(op);
845	SET_FLAG(op,FLAG_REMOVED);
846	nroffreeobjects--;
847	return op;
848	}	687	}
849		688
850	/*	689	/*
851	* If an object with the IS_TURNABLE() flag needs to be turned due	690	* If an object with the IS_TURNABLE() flag needs to be turned due
852	* to the closest player being on the other side, this function can	691	* to the closest player being on the other side, this function can
853	* be called to update the face variable, _and_ how it looks on the map.	692	* be called to update the face variable, _and_ how it looks on the map.
854	*/	693	*/
855		694
		695	void
856	void update_turn_face(object *op) {	696	update_turn_face (object *op)
		697	{
857	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	698	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
858	return;	699	return;
859	SET_ANIMATION(op, op->direction);	700	SET_ANIMATION (op, op->direction);
860	update_object(op,UP_OBJ_FACE);	701	update_object (op, UP_OBJ_FACE);
861	}	702	}
862		703
863	/*	704	/*
864	* Updates the speed of an object. If the speed changes from 0 to another	705	* Updates the speed of an object. If the speed changes from 0 to another
865	* value, or vice versa, then add/remove the object from the active list.	706	* value, or vice versa, then add/remove the object from the active list.
866	* This function needs to be called whenever the speed of an object changes.	707	* This function needs to be called whenever the speed of an object changes.
867	*/	708	*/
868		709	void
869	void update_ob_speed(object *op) {	710	update_ob_speed (object *op)
		711	{
870	extern int arch_init;	712	extern int arch_init;
871		713
872	/* No reason putting the archetypes objects on the speed list,	714	/* No reason putting the archetypes objects on the speed list,
873	* since they never really need to be updated.	715	* since they never really need to be updated.
874	*/	716	*/
875		717
876	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	718	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		719	{
877	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	720	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
878	#ifdef MANY_CORES	721	#ifdef MANY_CORES
879	abort();	722	abort ();
880	#else	723	#else
881	op->speed = 0;	724	op->speed = 0;
882	#endif	725	#endif
883	}	726	}
		727
884	if (arch_init) {	728	if (arch_init)
885	return;
886	}
887	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
888	/* If already on active list, don't do anything */
889	if (op->active_next || op->active_prev || op==active_objects)
890	return;	729	return;
891		730
		731	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		732	{
		733	/* If already on active list, don't do anything */
		734	if (op->active_next || op->active_prev || op == active_objects)
		735	return;
		736
892	/* process_events() expects us to insert the object at the beginning	737	/* process_events() expects us to insert the object at the beginning
893	* of the list. */	738	* of the list. */
894	op->active_next = active_objects;	739	op->active_next = active_objects;
		740
895	if (op->active_next!=NULL)	741	if (op->active_next != NULL)
896	op->active_next->active_prev = op;	742	op->active_next->active_prev = op;
		743
897	active_objects = op;	744	active_objects = op;
		745	}
		746	else
898	}	747	{
899	else {
900	/* If not on the active list, nothing needs to be done */	748	/* If not on the active list, nothing needs to be done */
901	if (!op->active_next && !op->active_prev && op!=active_objects)	749	if (!op->active_next && !op->active_prev && op != active_objects)
902	return;	750	return;
903		751
904	if (op->active_prev==NULL) {	752	if (op->active_prev == NULL)
		753	{
905	active_objects = op->active_next;	754	active_objects = op->active_next;
		755
906	if (op->active_next!=NULL)	756	if (op->active_next != NULL)
907	op->active_next->active_prev = NULL;	757	op->active_next->active_prev = NULL;
908	}	758	}
909	else {	759	else
		760	{
910	op->active_prev->active_next = op->active_next;	761	op->active_prev->active_next = op->active_next;
		762
911	if (op->active_next)	763	if (op->active_next)
912	op->active_next->active_prev = op->active_prev;	764	op->active_next->active_prev = op->active_prev;
913	}	765	}
		766
914	op->active_next = NULL;	767	op->active_next = NULL;
915	op->active_prev = NULL;	768	op->active_prev = NULL;
916	}	769	}
917	}	770	}
918		771
919	/* This function removes object 'op' from the list of active	772	/* This function removes object 'op' from the list of active
920	* objects.	773	* objects.
…		…
922	* reference maps where you don't want an object that isn't	775	* reference maps where you don't want an object that isn't
923	* in play chewing up cpu time getting processed.	776	* in play chewing up cpu time getting processed.
924	* The reverse of this is to call update_ob_speed, which	777	* The reverse of this is to call update_ob_speed, which
925	* will do the right thing based on the speed of the object.	778	* will do the right thing based on the speed of the object.
926	*/	779	*/
		780	void
927	void remove_from_active_list(object *op)	781	remove_from_active_list (object *op)
928	{	782	{
929	/* If not on the active list, nothing needs to be done */	783	/* If not on the active list, nothing needs to be done */
930	if (!op->active_next && !op->active_prev && op!=active_objects)	784	if (!op->active_next && !op->active_prev && op != active_objects)
931	return;	785	return;
932		786
933	if (op->active_prev==NULL) {	787	if (op->active_prev == NULL)
		788	{
934	active_objects = op->active_next;	789	active_objects = op->active_next;
935	if (op->active_next!=NULL)	790	if (op->active_next != NULL)
936	op->active_next->active_prev = NULL;	791	op->active_next->active_prev = NULL;
		792	}
		793	else
937	}	794	{
938	else {
939	op->active_prev->active_next = op->active_next;	795	op->active_prev->active_next = op->active_next;
940	if (op->active_next)	796	if (op->active_next)
941	op->active_next->active_prev = op->active_prev;	797	op->active_next->active_prev = op->active_prev;
942	}	798	}
943	op->active_next = NULL;	799	op->active_next = NULL;
944	op->active_prev = NULL;	800	op->active_prev = NULL;
945	}	801	}
946		802
947	/*	803	/*
948	* update_object() updates the array which represents the map.	804	* update_object() updates the array which represents the map.
949	* It takes into account invisible objects (and represent squares covered	805	* It takes into account invisible objects (and represent squares covered
…		…
964	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	820	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
965	* as that is easier than trying to look at what may have changed.	821	* as that is easier than trying to look at what may have changed.
966	* UP_OBJ_FACE: only the objects face has changed.	822	* UP_OBJ_FACE: only the objects face has changed.
967	*/	823	*/
968		824
		825	void
969	void update_object(object *op, int action) {	826	update_object (object *op, int action)
		827	{
970	int update_now=0, flags;	828	int update_now = 0, flags;
971	MoveType move_on, move_off, move_block, move_slow;	829	MoveType move_on, move_off, move_block, move_slow;
972		830
973	if (op == NULL) {	831	if (op == NULL)
		832	{
974	/* this should never happen */	833	/* this should never happen */
975	LOG(llevDebug,"update_object() called for NULL object.\n");	834	LOG (llevDebug, "update_object() called for NULL object.\n");
976	return;	835	return;
977	}
978		836	}
		837
979	if(op->env!=NULL) {	838	if (op->env != NULL)
		839	{
980	/* Animation is currently handled by client, so nothing	840	/* Animation is currently handled by client, so nothing
981	* to do in this case.	841	* to do in this case.
982	*/	842	*/
983	return;	843	return;
984	}	844	}
985		845
986	/* If the map is saving, don't do anything as everything is	846	/* If the map is saving, don't do anything as everything is
987	* going to get freed anyways.	847	* going to get freed anyways.
988	*/	848	*/
989	if (!op->map || op->map->in_memory == MAP_SAVING) return;	849	if (!op->map || op->map->in_memory == MAP_SAVING)
990		850	return;
		851
991	/* make sure the object is within map boundaries */	852	/* make sure the object is within map boundaries */
992	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	853	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))
993	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	854	{
994	LOG(llevError,"update_object() called for object out of map!\n");	855	LOG (llevError, "update_object() called for object out of map!\n");
995	#ifdef MANY_CORES	856	#ifdef MANY_CORES
996	abort();	857	abort ();
997	#endif	858	#endif
998	return;	859	return;
999	}
1000		860	}
		861
1001	flags = GET_MAP_FLAGS(op->map, op->x, op->y);	862	flags = GET_MAP_FLAGS (op->map, op->x, op->y);
1002	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);	863	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
1003	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	864	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1004	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	865	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1005	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	866	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1006	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);	867	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
1007		868
1008	if (action == UP_OBJ_INSERT) {	869	if (action == UP_OBJ_INSERT)
		870	{
1009	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	871	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))
1010	update_now=1;	872	update_now = 1;
1011		873
1012	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	874	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))
1013	update_now=1;	875	update_now = 1;
1014		876
1015	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	877	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))
1016	update_now=1;	878	update_now = 1;
1017		879
1018	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	880	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
1019	update_now=1;	881	update_now = 1;
1020		882
		883	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
		884	update_now = 1;
		885
1021	if ((move_on | op->move_on) != move_on) update_now=1;	886	if ((move_on | op->move_on) != move_on)
		887	update_now = 1;
		888
1022	if ((move_off | op->move_off) != move_off) update_now=1;	889	if ((move_off | op->move_off) != move_off)
		890	update_now = 1;
		891
1023	/* This isn't perfect, but I don't expect a lot of objects to	892	/* This isn't perfect, but I don't expect a lot of objects to
1024	* to have move_allow right now.	893	* to have move_allow right now.
1025	*/	894	*/
1026	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	895	if (((move_block | op->move_block) & ~op->move_allow) != move_block)
1027	update_now=1;	896	update_now = 1;
		897
1028	if ((move_slow | op->move_slow) != move_slow) update_now=1;	898	if ((move_slow | op->move_slow) != move_slow)
		899	update_now = 1;
1029	}	900	}
1030	/* if the object is being removed, we can't make intelligent	901	/* if the object is being removed, we can't make intelligent
1031	* decisions, because remove_ob can't really pass the object	902	* decisions, because remove_ob can't really pass the object
1032	* that is being removed.	903	* that is being removed.
1033	*/	904	*/
1034	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	905	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1035	update_now=1;	906	update_now = 1;
1036	} else if (action == UP_OBJ_FACE) {	907	else if (action == UP_OBJ_FACE)
1037	/* Nothing to do for that case */	908	/* Nothing to do for that case */ ;
1038	}
1039	else {	909	else
1040	LOG(llevError,"update_object called with invalid action: %d\n", action);	910	LOG (llevError, "update_object called with invalid action: %d\n", action);
1041	}
1042		911
1043	if (update_now) {	912	if (update_now)
		913	{
1044	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);	914	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1045	update_position(op->map, op->x, op->y);	915	update_position (op->map, op->x, op->y);
1046	}	916	}
1047		917
1048	if(op->more!=NULL)	918	if (op->more != NULL)
1049	update_object(op->more, action);	919	update_object (op->more, action);
1050	}	920	}
1051		921
		922	static unordered_vector<object *> mortals;
		923	static std::vector<object *, slice_allocator <object *> > freed;
		924
		925	void object::free_mortals ()
		926	{
		927	for (unordered_vector<object *>::iterator i = mortals.begin (); i != mortals.end ();)
		928	if ((*i)->refcnt)
		929	++i; // further delay freeing
		930	else
		931	{
		932	//printf ("free_mortal(%p,%ld,%ld)\n", *i, pticks, (*i)->count);//D
		933	//freed.push_back (*i);//D
		934	delete *i;
		935	mortals.erase (i);
		936	}
		937
		938	if (mortals.size() && 0)//D
		939	LOG (llevDebug, "%d objects in mortal queue\n", mortals.size());//D
		940	}
		941
		942	object::object ()
		943	{
		944	SET_FLAG (this, FLAG_REMOVED);
		945
		946	expmul = 1.0;
		947	face = blank_face;
		948	attacked_by_count = -1;
		949	}
		950
		951	object::~object ()
		952	{
		953	free_key_values (this);
		954	}
		955
		956	void object::link ()
		957	{
		958	count = ++ob_count;
		959	uuid = gen_uuid ();
		960
		961	prev = 0;
		962	next = objects;
		963
		964	if (objects)
		965	objects->prev = this;
		966
		967	objects = this;
		968	}
		969
		970	void object::unlink ()
		971	{
		972	//count = 0;//D
		973	if (!prev && !next) return;//D
		974
		975	if (this == objects)
		976	objects = next;
		977
		978	/* Remove this object from the list of used objects */
		979	if (prev) prev->next = next;
		980	if (next) next->prev = prev;
		981
		982	prev = 0;
		983	next = 0;
		984	}
		985
		986	object *object::create ()
		987	{
		988	object *op;
		989
		990	if (freed.empty ())
		991	op = new object;
		992	else
		993	{
		994	// highly annoying, but the only way to get it stable right now
		995	op = freed.back ();
		996	freed.pop_back ();
		997	op->~object ();
		998	new ((void *) op) object;
		999	}
		1000
		1001	op->link ();
		1002	return op;
		1003	}
1052		1004
1053	/*	1005	/*
1054	* free_object() frees everything allocated by an object, removes	1006	* free_object() frees everything allocated by an object, removes
1055	* it from the list of used objects, and puts it on the list of	1007	* it from the list of used objects, and puts it on the list of
1056	* free objects. The IS_FREED() flag is set in the object.	1008	* free objects. The IS_FREED() flag is set in the object.
…		…
1058	* this function to succeed.	1010	* this function to succeed.
1059	*	1011	*
1060	* If free_inventory is set, free inventory as well. Else drop items in	1012	* If free_inventory is set, free inventory as well. Else drop items in
1061	* inventory to the ground.	1013	* inventory to the ground.
1062	*/	1014	*/
		1015	void object::free (bool free_inventory)
		1016	{
		1017	if (QUERY_FLAG (this, FLAG_FREED))
		1018	return;
1063		1019
1064	void free_object(object *ob) {	1020	if (QUERY_FLAG (this, FLAG_FRIENDLY))
1065	free_object2(ob, 0);	1021	remove_friendly_object (this);
1066	}
1067	void free_object2(object *ob, int free_inventory) {
1068	object *tmp,*op;
1069		1022
1070	ob->clear ();
1071
1072	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	1023	if (!QUERY_FLAG (this, FLAG_REMOVED))
1073	LOG(llevDebug,"Free object called with non removed object\n");	1024	remove_ob (this);
1074	dump_object(ob);	1025
1075	#ifdef MANY_CORES	1026	SET_FLAG (this, FLAG_FREED);
1076	abort();	1027
1077	#endif	1028	//printf ("free(%p,%ld,%ld)\n", this, pticks, count);//D
		1029
		1030	if (more)
1078	}	1031	{
1079	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	1032	more->free (free_inventory);
1080	LOG(llevMonster,"Warning: tried to free friendly object.\n");	1033	more = 0;
1081	remove_friendly_object(ob);	1034	}
		1035
		1036	if (inv)
1082	}	1037	{
1083	if(QUERY_FLAG(ob,FLAG_FREED)) {
1084	dump_object(ob);
1085	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);
1086	return;
1087	}
1088	if(ob->more!=NULL) {
1089	free_object2(ob->more, free_inventory);
1090	ob->more=NULL;
1091	}
1092	if (ob->inv) {
1093	/* Only if the space blocks everything do we not process -	1038	/* Only if the space blocks everything do we not process -
1094	* if some form of movemnt is allowed, let objects	1039	* if some form of movement is allowed, let objects
1095	* drop on that space.	1040	* drop on that space.
1096	*/	1041	*/
1097	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	1042	if (free_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
1098	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	1043	{
1099	{	1044	object *op = inv;
1100	op=ob->inv;	1045
1101	while(op!=NULL) {	1046	while (op)
1102	tmp=op->below;	1047	{
1103	remove_ob(op);	1048	object *tmp = op->below;
1104	free_object2(op, free_inventory);	1049	op->free (free_inventory);
1105	op=tmp;	1050	op = tmp;
		1051	}
		1052	}
		1053	else
		1054	{ /* Put objects in inventory onto this space */
		1055	object *op = inv;
		1056
		1057	while (op)
		1058	{
		1059	object *tmp = op->below;
		1060
		1061	remove_ob (op);
		1062
		1063	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
		1064	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
		1065	free_object (op);
		1066	else
		1067	{
		1068	op->x = x;
		1069	op->y = y;
		1070	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
		1071	}
		1072
		1073	op = tmp;
		1074	}
		1075	}
1106	}	1076	}
1107	}	1077
1108	else { /* Put objects in inventory onto this space */	1078	owner = 0;
1109	op=ob->inv;	1079
1110	while(op!=NULL) {
1111	tmp=op->below;
1112	remove_ob(op);
1113	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||
1114	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))
1115	free_object(op);
1116	else {
1117	op->x=ob->x;
1118	op->y=ob->y;
1119	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */
1120	}
1121	op=tmp;
1122	}
1123	}
1124	}
1125	/* Remove object from the active list */	1080	/* Remove object from the active list */
1126	ob->speed = 0;	1081	speed = 0;
1127	update_ob_speed(ob);	1082	update_ob_speed (this);
1128		1083
1129	SET_FLAG(ob, FLAG_FREED);	1084	unlink ();
1130	ob->count = 0;
1131		1085
1132	/* Remove this object from the list of used objects */	1086	mortals.push_back (this);
1133	if(ob->prev==NULL) {
1134	objects=ob->next;
1135	if(objects!=NULL)
1136	objects->prev=NULL;
1137	}
1138	else {
1139	ob->prev->next=ob->next;
1140	if(ob->next!=NULL)
1141	ob->next->prev=ob->prev;
1142	}
1143
1144	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1145	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1146	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1147	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1148	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1149	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1150	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1151	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1152	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1153
1154
1155	/* Why aren't events freed? */
1156	free_key_values(ob);
1157
1158	#if 0 /* MEMORY_DEBUG*/
1159	/* This is a nice idea. Unfortunately, a lot of the code in crossfire
1160	* presumes the freed_object will stick around for at least a little
1161	* bit
1162	*/
1163	/* this is necessary so that memory debugging programs will
1164	* be able to accurately report source of malloc. If we recycle
1165	* objects, then some other area may be doing the get_object
1166	* and not freeing it, but the original one that malloc'd the
1167	* object will get the blame.
1168	*/
1169	free(ob);
1170	#else
1171
1172	/* Now link it with the free_objects list: */
1173	ob->prev=NULL;
1174	ob->next=free_objects;
1175	if(free_objects!=NULL)
1176	free_objects->prev=ob;
1177	free_objects=ob;
1178	nroffreeobjects++;
1179	#endif
1180	}
1181
1182	/*
1183	* count_free() returns the number of objects on the list of free objects.
1184	*/
1185
1186	int count_free(void) {
1187	int i=0;
1188	object *tmp=free_objects;
1189	while(tmp!=NULL)
1190	tmp=tmp->next, i++;
1191	return i;
1192	}
1193
1194	/*
1195	* count_used() returns the number of objects on the list of used objects.
1196	*/
1197
1198	int count_used(void) {
1199	int i=0;
1200	object *tmp=objects;
1201	while(tmp!=NULL)
1202	tmp=tmp->next, i++;
1203	return i;
1204	}
1205
1206	/*
1207	* count_active() returns the number of objects on the list of active objects.
1208	*/
1209
1210	int count_active(void) {
1211	int i=0;
1212	object *tmp=active_objects;
1213	while(tmp!=NULL)
1214	tmp=tmp->active_next, i++;
1215	return i;
1216	}	1087	}
1217		1088
1218	/*	1089	/*
1219	* sub_weight() recursively (outwards) subtracts a number from the	1090	* sub_weight() recursively (outwards) subtracts a number from the
1220	* weight of an object (and what is carried by it's environment(s)).	1091	* weight of an object (and what is carried by it's environment(s)).
1221	*/	1092	*/
1222		1093
		1094	void
1223	void sub_weight (object *op, signed long weight) {	1095	sub_weight (object *op, signed long weight)
		1096	{
1224	while (op != NULL) {	1097	while (op != NULL)
		1098	{
1225	if (op->type == CONTAINER) {	1099	if (op->type == CONTAINER)
		1100	{
1226	weight=(signed long)(weight*(100-op->stats.Str)/100);	1101	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1227	}	1102	}
1228	op->carrying-=weight;	1103	op->carrying -= weight;
1229	op = op->env;	1104	op = op->env;
1230	}	1105	}
1231	}	1106	}
1232		1107
1233	/* remove_ob(op):	1108	/* remove_ob(op):
1234	* This function removes the object op from the linked list of objects	1109	* This function removes the object op from the linked list of objects
1235	* which it is currently tied to. When this function is done, the	1110	* which it is currently tied to. When this function is done, the
…		…
1237	* environment, the x and y coordinates will be updated to	1112	* environment, the x and y coordinates will be updated to
1238	* the previous environment.	1113	* the previous environment.
1239	* Beware: This function is called from the editor as well!	1114	* Beware: This function is called from the editor as well!
1240	*/	1115	*/
1241		1116
		1117	void
1242	void remove_ob(object *op) {	1118	remove_ob (object *op)
1243	object *tmp,*last=NULL;	1119	{
1244	object *otmp;	1120	object *
1245	tag_t tag;	1121	tmp, *
		1122	last = NULL;
		1123	object *
		1124	otmp;
		1125
		1126	tag_t
		1127	tag;
		1128	int
1246	int check_walk_off;	1129	check_walk_off;
1247	mapstruct *m;	1130	mapstruct *
1248	sint16 x,y;
1249		1131	m;
1250		1132
		1133	sint16
		1134	x,
		1135	y;
		1136
1251	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1137	if (QUERY_FLAG (op, FLAG_REMOVED))
1252	dump_object(op);	1138	return;
1253	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1254		1139
1255	/* Changed it to always dump core in this case. As has been learned
1256	* in the past, trying to recover from errors almost always
1257	* make things worse, and this is a real error here - something
1258	* that should not happen.
1259	* Yes, if this was a mission critical app, trying to do something
1260	* to recover may make sense, but that is because failure of the app
1261	* may have other disastrous problems. Cf runs out of a script
1262	* so is easily enough restarted without any real problems.
1263	* MSW 2001-07-01
1264	*/
1265	abort();
1266	}
1267	if(op->more!=NULL)
1268	remove_ob(op->more);
1269
1270	SET_FLAG(op, FLAG_REMOVED);	1140	SET_FLAG (op, FLAG_REMOVED);
1271		1141
		1142	if (op->more != NULL)
		1143	remove_ob (op->more);
		1144
1272	/*	1145	/*
1273	* In this case, the object to be removed is in someones	1146	* In this case, the object to be removed is in someones
1274	* inventory.	1147	* inventory.
1275	*/	1148	*/
1276	if(op->env!=NULL) {	1149	if (op->env != NULL)
		1150	{
1277	if(op->nrof)	1151	if (op->nrof)
1278	sub_weight(op->env, op->weight*op->nrof);	1152	sub_weight (op->env, op->weight * op->nrof);
1279	else	1153	else
1280	sub_weight(op->env, op->weight+op->carrying);	1154	sub_weight (op->env, op->weight + op->carrying);
1281		1155
1282	/* NO_FIX_PLAYER is set when a great many changes are being	1156	/* NO_FIX_PLAYER is set when a great many changes are being
1283	* made to players inventory. If set, avoiding the call	1157	* made to players inventory. If set, avoiding the call
1284	* to save cpu time.	1158	* to save cpu time.
1285	*/	1159	*/
1286	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1160	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1287	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))
1288	fix_player(otmp);	1161	fix_player (otmp);
1289		1162
1290	if(op->above!=NULL)	1163	if (op->above != NULL)
1291	op->above->below=op->below;	1164	op->above->below = op->below;
1292	else	1165	else
1293	op->env->inv=op->below;	1166	op->env->inv = op->below;
1294		1167
1295	if(op->below!=NULL)	1168	if (op->below != NULL)
1296	op->below->above=op->above;	1169	op->below->above = op->above;
1297		1170
1298	/* we set up values so that it could be inserted into	1171	/* we set up values so that it could be inserted into
1299	* the map, but we don't actually do that - it is up	1172	* the map, but we don't actually do that - it is up
1300	* to the caller to decide what we want to do.	1173	* to the caller to decide what we want to do.
1301	*/	1174	*/
1302	op->x=op->env->x,op->y=op->env->y;	1175	op->x = op->env->x, op->y = op->env->y;
1303	op->ox=op->x,op->oy=op->y;
1304	op->map=op->env->map;	1176	op->map = op->env->map;
1305	op->above=NULL,op->below=NULL;	1177	op->above = NULL, op->below = NULL;
1306	op->env=NULL;	1178	op->env = NULL;
1307	return;	1179	}
		1180	else if (op->map)
1308	}	1181	{
1309
1310	/* If we get here, we are removing it from a map */
1311	if (op->map == NULL) return;
1312
1313	x = op->x;	1182	x = op->x;
1314	y = op->y;	1183	y = op->y;
1315	m = get_map_from_coord(op->map, &x, &y);	1184	m = get_map_from_coord (op->map, &x, &y);
1316		1185
1317	if (!m) {	1186	if (!m)
		1187	{
1318	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1188	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1319	op->map->path, op->x, op->y);	1189	op->map->path, op->x, op->y);
1320	/* in old days, we used to set x and y to 0 and continue.	1190	/* in old days, we used to set x and y to 0 and continue.
1321	* it seems if we get into this case, something is probablye	1191	* it seems if we get into this case, something is probablye
1322	* screwed up and should be fixed.	1192	* screwed up and should be fixed.
1323	*/	1193	*/
1324	abort();	1194	abort ();
1325	}	1195	}
		1196
1326	if (op->map != m) {	1197	if (op->map != m)
1327	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",	1198	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1328	op->map->path, m->path, op->x, op->y, x, y);	1199	op->map->path, m->path, op->x, op->y, x, y);
1329	}
1330		1200
1331	/* Re did the following section of code - it looks like it had	1201	/* Re did the following section of code - it looks like it had
1332	* lots of logic for things we no longer care about	1202	* lots of logic for things we no longer care about
1333	*/	1203	*/
1334		1204
1335	/* link the object above us */	1205	/* link the object above us */
1336	if (op->above)	1206	if (op->above)
1337	op->above->below=op->below;	1207	op->above->below = op->below;
1338	else	1208	else
1339	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */	1209	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1340		1210
1341	/* Relink the object below us, if there is one */	1211	/* Relink the object below us, if there is one */
1342	if(op->below) {	1212	if (op->below)
1343	op->below->above=op->above;	1213	op->below->above = op->above;
1344	} else {	1214	else
		1215	{
1345	/* Nothing below, which means we need to relink map object for this space	1216	/* Nothing below, which means we need to relink map object for this space
1346	* use translated coordinates in case some oddness with map tiling is	1217	* use translated coordinates in case some oddness with map tiling is
1347	* evident	1218	* evident
1348	*/	1219	*/
1349	if(GET_MAP_OB(m,x,y)!=op) {	1220	if (GET_MAP_OB (m, x, y) != op)
		1221	{
1350	dump_object(op);	1222	dump_object (op);
		1223	LOG (llevError,
1351	LOG(llevError,"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);	1224	"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);
1352	dump_object(GET_MAP_OB(m,x,y));	1225	dump_object (GET_MAP_OB (m, x, y));
1353	LOG(llevError,"%s\n",errmsg);	1226	LOG (llevError, "%s\n", errmsg);
1354	}	1227	}
		1228
1355	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1229	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */
1356	}	1230	}
1357	op->above=NULL;	1231
		1232	op->above = 0;
1358	op->below=NULL;	1233	op->below = 0;
1359		1234
1360	if (op->map->in_memory == MAP_SAVING)	1235	if (op->map->in_memory == MAP_SAVING)
1361	return;	1236	return;
1362		1237
1363	tag = op->count;	1238	tag = op->count;
1364	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1239	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
		1240
1365	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1241	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
		1242	{
1366	/* No point updating the players look faces if he is the object	1243	/* No point updating the players look faces if he is the object
1367	* being removed.	1244	* being removed.
1368	*/	1245	*/
1369		1246
1370	if(tmp->type==PLAYER && tmp!=op) {	1247	if (tmp->type == PLAYER && tmp != op)
		1248	{
1371	/* If a container that the player is currently using somehow gets	1249	/* If a container that the player is currently using somehow gets
1372	* removed (most likely destroyed), update the player view	1250	* removed (most likely destroyed), update the player view
1373	* appropriately.	1251	* appropriately.
1374	*/	1252	*/
1375	if (tmp->container==op) {	1253	if (tmp->container == op)
1376	CLEAR_FLAG(op, FLAG_APPLIED);	1254	{
1377	tmp->container=NULL;	1255	CLEAR_FLAG (op, FLAG_APPLIED);
1378	}	1256	tmp->container = NULL;
		1257	}
		1258
1379	tmp->contr->socket.update_look=1;	1259	tmp->contr->socket.update_look = 1;
1380	}	1260	}
		1261
1381	/* See if player moving off should effect something */	1262	/* See if player moving off should effect something */
1382	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1263	if (check_walk_off && ((op->move_type & tmp->move_off) && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1383	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1264	{
1384
1385	move_apply(tmp, op, NULL);	1265	move_apply (tmp, op, NULL);
		1266
1386	if (was_destroyed (op, tag)) {	1267	if (was_destroyed (op, tag))
1387	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1268	{
1388	"leaving object\n", tmp->name, tmp->arch->name);	1269	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name);
1389	}	1270	}
1390	}	1271	}
1391		1272
1392	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1273	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1393		1274
1394	if(tmp->above == tmp)	1275	if (tmp->above == tmp)
1395	tmp->above = NULL;	1276	tmp->above = NULL;
1396	last=tmp;	1277
1397	}	1278	last = tmp;
		1279	}
		1280
1398	/* last == NULL of there are no objects on this space */	1281	/* last == NULL of there are no objects on this space */
1399	if (last==NULL) {	1282	if (last == NULL)
		1283	{
1400	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1284	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1401	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1285	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1402	* those out anyways, and if there are any flags set right now, they won't	1286	* those out anyways, and if there are any flags set right now, they won't
1403	* be correct anyways.	1287	* be correct anyways.
1404	*/	1288	*/
1405	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);	1289	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1406	update_position(op->map, op->x, op->y);	1290	update_position (op->map, op->x, op->y);
1407	}	1291	}
1408	else	1292	else
1409	update_object(last, UP_OBJ_REMOVE);	1293	update_object (last, UP_OBJ_REMOVE);
1410		1294
1411	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1295	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))
1412	update_all_los(op->map, op->x, op->y);	1296	update_all_los (op->map, op->x, op->y);
1413		1297	}
1414	}	1298	}
1415		1299
1416	/*	1300	/*
1417	* merge_ob(op,top):	1301	* merge_ob(op,top):
1418	*	1302	*
1419	* This function goes through all objects below and including top, and	1303	* This function goes through all objects below and including top, and
1420	* merges op to the first matching object.	1304	* merges op to the first matching object.
1421	* If top is NULL, it is calculated.	1305	* If top is NULL, it is calculated.
1422	* Returns pointer to object if it succeded in the merge, otherwise NULL	1306	* Returns pointer to object if it succeded in the merge, otherwise NULL
1423	*/	1307	*/
1424		1308	object *
1425	object *merge_ob(object *op, object *top) {	1309	merge_ob (object *op, object *top)
		1310	{
1426	if(!op->nrof)	1311	if (!op->nrof)
1427	return 0;	1312	return 0;
		1313
1428	if(top==NULL)	1314	if (top == NULL)
1429	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1315	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1316
1430	for(;top!=NULL;top=top->below) {	1317	for (; top != NULL; top = top->below)
		1318	{
1431	if(top==op)	1319	if (top == op)
1432	continue;	1320	continue;
1433	if (CAN_MERGE(op,top))	1321	if (CAN_MERGE (op, top))
1434	{	1322	{
1435	top->nrof+=op->nrof;	1323	top->nrof += op->nrof;
		1324
1436	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1325	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1437	op->weight = 0; /* Don't want any adjustements now */	1326	op->weight = 0; /* Don't want any adjustements now */
1438	remove_ob(op);	1327	remove_ob (op);
1439	free_object(op);	1328	free_object (op);
1440	return top;	1329	return top;
1441	}	1330	}
1442	}	1331	}
		1332
1443	return NULL;	1333	return NULL;
1444	}	1334	}
1445		1335
1446	/*	1336	/*
1447	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1337	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1448	* job preparing multi-part monsters	1338	* job preparing multi-part monsters
1449	*/	1339	*/
		1340	object *
1450	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1341	insert_ob_in_map_at (object *op, mapstruct *m, object *originator, int flag, int x, int y)
		1342	{
1451	object* tmp;	1343	object *tmp;
		1344
1452	if (op->head)	1345	if (op->head)
1453	op=op->head;	1346	op = op->head;
		1347
1454	for (tmp=op;tmp;tmp=tmp->more){	1348	for (tmp = op; tmp; tmp = tmp->more)
		1349	{
1455	tmp->x=x+tmp->arch->clone.x;	1350	tmp->x = x + tmp->arch->clone.x;
1456	tmp->y=y+tmp->arch->clone.y;	1351	tmp->y = y + tmp->arch->clone.y;
1457	}	1352	}
		1353
1458	return insert_ob_in_map (op, m, originator, flag);	1354	return insert_ob_in_map (op, m, originator, flag);
1459	}	1355	}
1460		1356
1461	/*	1357	/*
1462	* insert_ob_in_map (op, map, originator, flag):	1358	* insert_ob_in_map (op, map, originator, flag):
1463	* This function inserts the object in the two-way linked list	1359	* This function inserts the object in the two-way linked list
…		…
1477	* new object if 'op' was merged with other object	1373	* new object if 'op' was merged with other object
1478	* NULL if 'op' was destroyed	1374	* NULL if 'op' was destroyed
1479	* just 'op' otherwise	1375	* just 'op' otherwise
1480	*/	1376	*/
1481		1377
		1378	object *
1482	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1379	insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)
1483	{	1380	{
1484	object *tmp, *top, *floor=NULL;	1381	object *tmp, *top, *floor = NULL;
1485	sint16 x,y;	1382	sint16 x, y;
1486		1383
1487	if (QUERY_FLAG (op, FLAG_FREED)) {	1384	if (QUERY_FLAG (op, FLAG_FREED))
		1385	{
1488	LOG (llevError, "Trying to insert freed object!\n");	1386	LOG (llevError, "Trying to insert freed object!\n");
1489	return NULL;	1387	return NULL;
		1388	}
		1389
		1390	if (m == NULL)
1490	}	1391	{
1491	if(m==NULL) {
1492	dump_object(op);	1392	dump_object (op);
1493	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1393	LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg);
1494	return op;	1394	return op;
1495	}	1395	}
		1396
1496	if(out_of_map(m,op->x,op->y)) {	1397	if (out_of_map (m, op->x, op->y))
		1398	{
1497	dump_object(op);	1399	dump_object (op);
1498	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1400	LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg);
1499	#ifdef MANY_CORES	1401	#ifdef MANY_CORES
1500	/* Better to catch this here, as otherwise the next use of this object	1402	/* Better to catch this here, as otherwise the next use of this object
1501	* is likely to cause a crash. Better to find out where it is getting	1403	* is likely to cause a crash. Better to find out where it is getting
1502	* improperly inserted.	1404	* improperly inserted.
1503	*/	1405	*/
1504	abort();	1406	abort ();
1505	#endif	1407	#endif
1506	return op;	1408	return op;
1507	}	1409	}
		1410
1508	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1411	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1412	{
1509	dump_object(op);	1413	dump_object (op);
1510	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1414	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg);
1511	return op;	1415	return op;
1512	}	1416	}
		1417
1513	if(op->more!=NULL) {	1418	if (op->more != NULL)
		1419	{
1514	/* The part may be on a different map. */	1420	/* The part may be on a different map. */
1515		1421
1516	object *more = op->more;	1422	object *more = op->more;
1517		1423
1518	/* We really need the caller to normalize coordinates - if	1424	/* We really need the caller to normalize coordinates - if
1519	* we set the map, that doesn't work if the location is within	1425	* we set the map, that doesn't work if the location is within
1520	* a map and this is straddling an edge. So only if coordinate	1426	* a map and this is straddling an edge. So only if coordinate
1521	* is clear wrong do we normalize it.	1427	* is clear wrong do we normalize it.
1522	*/	1428	*/
1523	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1429	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1524	/* Debugging information so you can see the last coordinates this object had */
1525	more->ox = more->x;
1526	more->oy = more->y;
1527	more->map = get_map_from_coord(m, &more->x, &more->y);	1430	more->map = get_map_from_coord (m, &more->x, &more->y);
1528	} else if (!more->map) {	1431	else if (!more->map)
		1432	{
1529	/* For backwards compatibility - when not dealing with tiled maps,	1433	/* For backwards compatibility - when not dealing with tiled maps,
1530	* more->map should always point to the parent.	1434	* more->map should always point to the parent.
1531	*/	1435	*/
1532	more->map = m;	1436	more->map = m;
1533	}	1437	}
1534		1438
1535	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1439	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1440	{
1536	if ( ! op->head)	1441	if (!op->head)
1537	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1442	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1443
1538	return NULL;	1444	return NULL;
1539	}	1445	}
1540	}	1446	}
		1447
1541	CLEAR_FLAG(op,FLAG_REMOVED);	1448	CLEAR_FLAG (op, FLAG_REMOVED);
1542		1449
1543	/* Debugging information so you can see the last coordinates this object had */
1544	op->ox=op->x;
1545	op->oy=op->y;
1546
1547	/* Ideally, the caller figures this out. However, it complicates a lot	1450	/* Ideally, the caller figures this out. However, it complicates a lot
1548	* of areas of callers (eg, anything that uses find_free_spot would now	1451	* of areas of callers (eg, anything that uses find_free_spot would now
1549	* need extra work	1452	* need extra work
1550	*/	1453	*/
1551	op->map=get_map_from_coord(m, &op->x, &op->y);	1454	op->map = get_map_from_coord (m, &op->x, &op->y);
1552	x = op->x;	1455	x = op->x;
1553	y = op->y;	1456	y = op->y;
1554		1457
1555	/* this has to be done after we translate the coordinates.	1458	/* this has to be done after we translate the coordinates.
1556	*/	1459	*/
1557	if(op->nrof && !(flag & INS_NO_MERGE)) {	1460	if (op->nrof && !(flag & INS_NO_MERGE))
1558	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1461	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1559	if (CAN_MERGE(op,tmp)) {	1462	if (CAN_MERGE (op, tmp))
1560	op->nrof+=tmp->nrof;	1463	{
1561	remove_ob(tmp);	1464	op->nrof += tmp->nrof;
1562	free_object(tmp);	1465	remove_ob (tmp);
1563	}	1466	free_object (tmp);
1564	}	1467	}
1565		1468
1566	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1469	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1567	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1470	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1471
1568	if (!QUERY_FLAG(op, FLAG_ALIVE))	1472	if (!QUERY_FLAG (op, FLAG_ALIVE))
1569	CLEAR_FLAG(op, FLAG_NO_STEAL);	1473	CLEAR_FLAG (op, FLAG_NO_STEAL);
1570		1474
1571	if (flag & INS_BELOW_ORIGINATOR) {	1475	if (flag & INS_BELOW_ORIGINATOR)
		1476	{
1572	if (originator->map != op->map || originator->x != op->x ||	1477	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1573	originator->y != op->y) {	1478	{
1574	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1479	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1575	abort();	1480	abort ();
1576	}	1481	}
		1482
1577	op->above = originator;	1483	op->above = originator;
1578	op->below = originator->below;	1484	op->below = originator->below;
1579	if (op->below) op->below->above = op;	1485
		1486	if (op->below)
		1487	op->below->above = op;
		1488	else
1580	else SET_MAP_OB(op->map, op->x, op->y, op);	1489	SET_MAP_OB (op->map, op->x, op->y, op);
		1490
1581	/* since *below* originator, no need to update top */	1491	/* since *below* originator, no need to update top */
1582	originator->below = op;	1492	originator->below = op;
1583	} else {	1493	}
		1494	else
		1495	{
1584	/* If there are other objects, then */	1496	/* If there are other objects, then */
1585	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1497	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1498	{
1586	object *last=NULL;	1499	object *last = NULL;
1587	/*	1500
		1501	/*
1588	* If there are multiple objects on this space, we do some trickier handling.	1502	* If there are multiple objects on this space, we do some trickier handling.
1589	* We've already dealt with merging if appropriate.	1503	* We've already dealt with merging if appropriate.
1590	* Generally, we want to put the new object on top. But if	1504	* Generally, we want to put the new object on top. But if
1591	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1505	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1592	* floor, we want to insert above that and no further.	1506	* floor, we want to insert above that and no further.
1593	* Also, if there are spell objects on this space, we stop processing	1507	* Also, if there are spell objects on this space, we stop processing
1594	* once we get to them. This reduces the need to traverse over all of	1508	* once we get to them. This reduces the need to traverse over all of
1595	* them when adding another one - this saves quite a bit of cpu time	1509	* them when adding another one - this saves quite a bit of cpu time
1596	* when lots of spells are cast in one area. Currently, it is presumed	1510	* when lots of spells are cast in one area. Currently, it is presumed
1597	* that flying non pickable objects are spell objects.	1511	* that flying non pickable objects are spell objects.
1598	*/	1512	*/
1599		1513
1600	while (top != NULL) {	1514	while (top != NULL)
1601	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||	1515	{
1602	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;	1516	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1603	if (QUERY_FLAG(top, FLAG_NO_PICK)	1517	floor = top;
1604	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))	1518
1605	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))	1519	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1606	{	1520	{
1607	/* We insert above top, so we want this object below this */	1521	/* We insert above top, so we want this object below this */
1608	top=top->below;	1522	top = top->below;
1609	break;	1523	break;
1610	}	1524	}
1611	last = top;	1525
1612	top = top->above;	1526	last = top;
1613	}	1527	top = top->above;
		1528	}
		1529
1614	/* Don't want top to be NULL, so set it to the last valid object */	1530	/* Don't want top to be NULL, so set it to the last valid object */
1615	top = last;	1531	top = last;
1616		1532
1617	/* We let update_position deal with figuring out what the space	1533	/* We let update_position deal with figuring out what the space
1618	* looks like instead of lots of conditions here.	1534	* looks like instead of lots of conditions here.
1619	* makes things faster, and effectively the same result.	1535	* makes things faster, and effectively the same result.
1620	*/	1536	*/
1621		1537
1622	/* Have object 'fall below' other objects that block view.	1538	/* Have object 'fall below' other objects that block view.
1623	* Unless those objects are exits, type 66	1539	* Unless those objects are exits, type 66
1624	* If INS_ON_TOP is used, don't do this processing	1540	* If INS_ON_TOP is used, don't do this processing
1625	* Need to find the object that in fact blocks view, otherwise	1541	* Need to find the object that in fact blocks view, otherwise
1626	* stacking is a bit odd.	1542	* stacking is a bit odd.
1627	*/	1543	*/
1628	if (!(flag & INS_ON_TOP) &&	1544	if (!(flag & INS_ON_TOP) &&
1629	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1545	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1630	(op->face && !op->face->visibility)) {	1546	{
1631	for (last=top; last != floor; last=last->below)	1547	for (last = top; last != floor; last = last->below)
1632	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1548	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1549	break;
1633	/* Check to see if we found the object that blocks view,	1550	/* Check to see if we found the object that blocks view,
1634	* and make sure we have a below pointer for it so that	1551	* and make sure we have a below pointer for it so that
1635	* we can get inserted below this one, which requires we	1552	* we can get inserted below this one, which requires we
1636	* set top to the object below us.	1553	* set top to the object below us.
1637	*/	1554	*/
1638	if (last && last->below && last != floor) top=last->below;	1555	if (last && last->below && last != floor)
1639	}	1556	top = last->below;
1640	} /* If objects on this space */	1557	}
		1558	} /* If objects on this space */
		1559
1641	if (flag & INS_MAP_LOAD)	1560	if (flag & INS_MAP_LOAD)
1642	top = GET_MAP_TOP(op->map,op->x,op->y);	1561	top = GET_MAP_TOP (op->map, op->x, op->y);
		1562
1643	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1563	if (flag & INS_ABOVE_FLOOR_ONLY)
		1564	top = floor;
1644		1565
1645	/* Top is the object that our object (op) is going to get inserted above.	1566	/* Top is the object that our object (op) is going to get inserted above.
1646	*/	1567	*/
1647		1568
1648	/* First object on this space */	1569	/* First object on this space */
1649	if (!top) {	1570	if (!top)
		1571	{
1650	op->above = GET_MAP_OB(op->map, op->x, op->y);	1572	op->above = GET_MAP_OB (op->map, op->x, op->y);
1651	if (op->above) op->above->below = op;	1573
		1574	if (op->above)
		1575	op->above->below = op;
		1576
1652	op->below = NULL;	1577	op->below = NULL;
1653	SET_MAP_OB(op->map, op->x, op->y, op);	1578	SET_MAP_OB (op->map, op->x, op->y, op);
1654	} else { /* get inserted into the stack above top */	1579	}
		1580	else
		1581	{ /* get inserted into the stack above top */
1655	op->above = top->above;	1582	op->above = top->above;
1656	if (op->above) op->above->below = op;	1583
		1584	if (op->above)
		1585	op->above->below = op;
		1586
1657	op->below = top;	1587	op->below = top;
1658	top->above = op;	1588	top->above = op;
1659	}	1589	}
		1590
1660	if (op->above==NULL)	1591	if (op->above == NULL)
1661	SET_MAP_TOP(op->map,op->x, op->y, op);	1592	SET_MAP_TOP (op->map, op->x, op->y, op);
1662	} /* else not INS_BELOW_ORIGINATOR */	1593	} /* else not INS_BELOW_ORIGINATOR */
1663		1594
1664	if(op->type==PLAYER)	1595	if (op->type == PLAYER)
1665	op->contr->do_los=1;	1596	op->contr->do_los = 1;
1666		1597
1667	/* If we have a floor, we know the player, if any, will be above	1598	/* If we have a floor, we know the player, if any, will be above
1668	* it, so save a few ticks and start from there.	1599	* it, so save a few ticks and start from there.
1669	*/	1600	*/
1670	if (!(flag & INS_MAP_LOAD))	1601	if (!(flag & INS_MAP_LOAD))
1671	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1602	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1672	if (tmp->type == PLAYER)	1603	if (tmp->type == PLAYER)
1673	tmp->contr->socket.update_look=1;	1604	tmp->contr->socket.update_look = 1;
1674	}
1675		1605
1676	/* If this object glows, it may affect lighting conditions that are	1606	/* If this object glows, it may affect lighting conditions that are
1677	* visible to others on this map. But update_all_los is really	1607	* visible to others on this map. But update_all_los is really
1678	* an inefficient way to do this, as it means los for all players	1608	* an inefficient way to do this, as it means los for all players
1679	* on the map will get recalculated. The players could very well	1609	* on the map will get recalculated. The players could very well
1680	* be far away from this change and not affected in any way -	1610	* be far away from this change and not affected in any way -
1681	* this should get redone to only look for players within range,	1611	* this should get redone to only look for players within range,
1682	* or just updating the P_NEED_UPDATE for spaces within this area	1612	* or just updating the P_NEED_UPDATE for spaces within this area
1683	* of effect may be sufficient.	1613	* of effect may be sufficient.
1684	*/	1614	*/
1685	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1615	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
1686	update_all_los(op->map, op->x, op->y);	1616	update_all_los (op->map, op->x, op->y);
1687		1617
1688
1689	/* updates flags (blocked, alive, no magic, etc) for this map space */	1618	/* updates flags (blocked, alive, no magic, etc) for this map space */
1690	update_object(op,UP_OBJ_INSERT);	1619	update_object (op, UP_OBJ_INSERT);
1691		1620
1692
1693	/* Don't know if moving this to the end will break anything. However,	1621	/* Don't know if moving this to the end will break anything. However,
1694	* we want to have update_look set above before calling this.	1622	* we want to have update_look set above before calling this.
1695	*	1623	*
1696	* check_move_on() must be after this because code called from	1624	* check_move_on() must be after this because code called from
1697	* check_move_on() depends on correct map flags (so functions like	1625	* check_move_on() depends on correct map flags (so functions like
1698	* blocked() and wall() work properly), and these flags are updated by	1626	* blocked() and wall() work properly), and these flags are updated by
1699	* update_object().	1627	* update_object().
1700	*/	1628	*/
1701		1629
1702	/* if this is not the head or flag has been passed, don't check walk on status */	1630	/* if this is not the head or flag has been passed, don't check walk on status */
1703
1704	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1631	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1632	{
1705	if (check_move_on(op, originator))	1633	if (check_move_on (op, originator))
1706	return NULL;	1634	return NULL;
1707		1635
1708	/* If we are a multi part object, lets work our way through the check	1636	/* If we are a multi part object, lets work our way through the check
1709	* walk on's.	1637	* walk on's.
1710	*/	1638	*/
1711	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1639	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1712	if (check_move_on (tmp, originator))	1640	if (check_move_on (tmp, originator))
1713	return NULL;	1641	return NULL;
1714	}	1642	}
		1643
1715	return op;	1644	return op;
1716	}	1645	}
1717		1646
1718	/* this function inserts an object in the map, but if it	1647	/* this function inserts an object in the map, but if it
1719	* finds an object of its own type, it'll remove that one first.	1648	* finds an object of its own type, it'll remove that one first.
1720	* op is the object to insert it under: supplies x and the map.	1649	* op is the object to insert it under: supplies x and the map.
1721	*/	1650	*/
		1651	void
1722	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1652	replace_insert_ob_in_map (const char *arch_string, object *op)
		1653	{
1723	object *tmp;	1654	object *
1724	object *tmp1;	1655	tmp;
		1656	object *
		1657	tmp1;
1725		1658
1726	/* first search for itself and remove any old instances */	1659	/* first search for itself and remove any old instances */
1727		1660
1728	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1661	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
		1662	{
1729	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1663	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
		1664	{
1730	remove_ob(tmp);	1665	remove_ob (tmp);
1731	free_object(tmp);	1666	free_object (tmp);
1732	}	1667	}
1733	}	1668	}
1734		1669
1735	tmp1=arch_to_object(find_archetype(arch_string));	1670	tmp1 = arch_to_object (find_archetype (arch_string));
1736		1671
1737		1672	tmp1->x = op->x;
1738	tmp1->x = op->x; tmp1->y = op->y;	1673	tmp1->y = op->y;
1739	insert_ob_in_map(tmp1,op->map,op,0);	1674	insert_ob_in_map (tmp1, op->map, op, 0);
1740	}	1675	}
1741		1676
1742	/*	1677	/*
1743	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1678	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1744	* is returned contains nr objects, and the remaining parts contains	1679	* is returned contains nr objects, and the remaining parts contains
1745	* the rest (or is removed and freed if that number is 0).	1680	* the rest (or is removed and freed if that number is 0).
1746	* On failure, NULL is returned, and the reason put into the	1681	* On failure, NULL is returned, and the reason put into the
1747	* global static errmsg array.	1682	* global static errmsg array.
1748	*/	1683	*/
1749		1684
		1685	object *
1750	object *get_split_ob(object *orig_ob, uint32 nr) {	1686	get_split_ob (object *orig_ob, uint32 nr)
1751	object *newob;	1687	{
		1688	object *
		1689	newob;
		1690	int
1752	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1691	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1753		1692
1754	if(orig_ob->nrof<nr) {	1693	if (orig_ob->nrof < nr)
1755	sprintf(errmsg,"There are only %d %ss.",
1756	orig_ob->nrof?orig_ob->nrof:1, orig_ob->name);
1757	return NULL;
1758	}	1694	{
		1695	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
		1696	return NULL;
		1697	}
		1698
1759	newob = object_create_clone(orig_ob);	1699	newob = object_create_clone (orig_ob);
		1700
1760	if((orig_ob->nrof-=nr)<1) {	1701	if ((orig_ob->nrof -= nr) < 1)
		1702	{
1761	if ( ! is_removed)	1703	if (!is_removed)
1762	remove_ob(orig_ob);	1704	remove_ob (orig_ob);
1763	free_object2(orig_ob, 1);	1705	free_object2 (orig_ob, 1);
1764	}	1706	}
1765	else if ( ! is_removed) {	1707	else if (!is_removed)
		1708	{
1766	if(orig_ob->env!=NULL)	1709	if (orig_ob->env != NULL)
1767	sub_weight (orig_ob->env,orig_ob->weight*nr);	1710	sub_weight (orig_ob->env, orig_ob->weight * nr);
1768	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1711	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1712	{
1769	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1713	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1770	LOG(llevDebug,
1771	"Error, Tried to split object whose map is not in memory.\n");	1714	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1772	return NULL;	1715	return NULL;
1773	}	1716	}
1774	}	1717	}
		1718
1775	newob->nrof=nr;	1719	newob->nrof = nr;
1776		1720
1777	return newob;	1721	return newob;
1778	}	1722	}
1779		1723
1780	/*	1724	/*
1781	* decrease_ob_nr(object, number) decreases a specified number from	1725	* decrease_ob_nr(object, number) decreases a specified number from
1782	* the amount of an object. If the amount reaches 0, the object	1726	* the amount of an object. If the amount reaches 0, the object
1783	* is subsequently removed and freed.	1727	* is subsequently removed and freed.
1784	*	1728	*
1785	* Return value: 'op' if something is left, NULL if the amount reached 0	1729	* Return value: 'op' if something is left, NULL if the amount reached 0
1786	*/	1730	*/
1787		1731
		1732	object *
1788	object *decrease_ob_nr (object *op, uint32 i)	1733	decrease_ob_nr (object *op, uint32 i)
1789	{	1734	{
1790	object *tmp;	1735	object *tmp;
1791	player *pl;	1736	player *pl;
1792		1737
1793	if (i == 0) /* objects with op->nrof require this check */	1738	if (i == 0) /* objects with op->nrof require this check */
1794	return op;	1739	return op;
1795		1740
1796	if (i > op->nrof)	1741	if (i > op->nrof)
1797	i = op->nrof;	1742	i = op->nrof;
1798		1743
1799	if (QUERY_FLAG (op, FLAG_REMOVED))	1744	if (QUERY_FLAG (op, FLAG_REMOVED))
		1745	op->nrof -= i;
		1746	else if (op->env != NULL)
		1747	{
		1748	/* is this object in the players inventory, or sub container
		1749	* therein?
		1750	*/
		1751	tmp = is_player_inv (op->env);
		1752	/* nope. Is this a container the player has opened?
		1753	* If so, set tmp to that player.
		1754	* IMO, searching through all the players will mostly
		1755	* likely be quicker than following op->env to the map,
		1756	* and then searching the map for a player.
		1757	*/
		1758	if (!tmp)
		1759	{
		1760	for (pl = first_player; pl; pl = pl->next)
		1761	if (pl->ob->container == op->env)
		1762	break;
		1763	if (pl)
		1764	tmp = pl->ob;
		1765	else
		1766	tmp = NULL;
		1767	}
		1768
		1769	if (i < op->nrof)
		1770	{
		1771	sub_weight (op->env, op->weight * i);
		1772	op->nrof -= i;
		1773	if (tmp)
		1774	{
		1775	esrv_send_item (tmp, op);
		1776	}
		1777	}
		1778	else
		1779	{
		1780	remove_ob (op);
		1781	op->nrof = 0;
		1782	if (tmp)
		1783	{
		1784	esrv_del_item (tmp->contr, op->count);
		1785	}
		1786	}
1800	{	1787	}
		1788	else
		1789	{
		1790	object *above = op->above;
		1791
		1792	if (i < op->nrof)
1801	op->nrof -= i;	1793	op->nrof -= i;
1802	}
1803	else if (op->env != NULL)
1804	{
1805	/* is this object in the players inventory, or sub container
1806	* therein?
1807	*/
1808	tmp = is_player_inv (op->env);
1809	/* nope. Is this a container the player has opened?
1810	* If so, set tmp to that player.
1811	* IMO, searching through all the players will mostly
1812	* likely be quicker than following op->env to the map,
1813	* and then searching the map for a player.
1814	*/
1815	if (!tmp) {
1816	for (pl=first_player; pl; pl=pl->next)
1817	if (pl->ob->container == op->env) break;
1818	if (pl) tmp=pl->ob;
1819	else tmp=NULL;
1820	}
1821
1822	if (i < op->nrof) {
1823	sub_weight (op->env, op->weight * i);
1824	op->nrof -= i;
1825	if (tmp) {
1826	esrv_send_item(tmp, op);
1827	}
1828	} else {	1794	else
		1795	{
1829	remove_ob (op);	1796	remove_ob (op);
1830	op->nrof = 0;	1797	op->nrof = 0;
1831	if (tmp) {
1832	esrv_del_item(tmp->contr, op->count);
1833	}	1798	}
1834	}
1835	}
1836	else
1837	{
1838	object *above = op->above;
1839		1799
1840	if (i < op->nrof) {
1841	op->nrof -= i;
1842	} else {
1843	remove_ob (op);
1844	op->nrof = 0;
1845	}
1846	/* Since we just removed op, op->above is null */	1800	/* Since we just removed op, op->above is null */
1847	for (tmp = above; tmp != NULL; tmp = tmp->above)	1801	for (tmp = above; tmp != NULL; tmp = tmp->above)
1848	if (tmp->type == PLAYER) {	1802	if (tmp->type == PLAYER)
		1803	{
1849	if (op->nrof)	1804	if (op->nrof)
1850	esrv_send_item(tmp, op);	1805	esrv_send_item (tmp, op);
1851	else	1806	else
1852	esrv_del_item(tmp->contr, op->count);	1807	esrv_del_item (tmp->contr, op->count);
1853	}	1808	}
1854	}	1809	}
1855		1810
1856	if (op->nrof) {	1811	if (op->nrof)
1857	return op;	1812	return op;
1858	} else {	1813	else
		1814	{
1859	free_object (op);	1815	free_object (op);
1860	return NULL;	1816	return NULL;
1861	}	1817	}
1862	}	1818	}
1863		1819
1864	/*	1820	/*
1865	* add_weight(object, weight) adds the specified weight to an object,	1821	* add_weight(object, weight) adds the specified weight to an object,
1866	* and also updates how much the environment(s) is/are carrying.	1822	* and also updates how much the environment(s) is/are carrying.
1867	*/	1823	*/
1868		1824
		1825	void
1869	void add_weight (object *op, signed long weight) {	1826	add_weight (object *op, signed long weight)
		1827	{
1870	while (op!=NULL) {	1828	while (op != NULL)
		1829	{
1871	if (op->type == CONTAINER) {	1830	if (op->type == CONTAINER)
1872	weight=(signed long)(weight*(100-op->stats.Str)/100);	1831	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1873	}	1832
1874	op->carrying+=weight;	1833	op->carrying += weight;
1875	op=op->env;	1834	op = op->env;
1876	}	1835	}
1877	}	1836	}
1878		1837
1879	/*	1838	/*
1880	* insert_ob_in_ob(op,environment):	1839	* insert_ob_in_ob(op,environment):
1881	* This function inserts the object op in the linked list	1840	* This function inserts the object op in the linked list
…		…
1888	*	1847	*
1889	* The function returns now pointer to inserted item, and return value can	1848	* The function returns now pointer to inserted item, and return value can
1890	* be != op, if items are merged. -Tero	1849	* be != op, if items are merged. -Tero
1891	*/	1850	*/
1892		1851
		1852	object *
1893	object *insert_ob_in_ob(object *op,object *where) {	1853	insert_ob_in_ob (object *op, object *where)
1894	object *tmp, *otmp;	1854	{
		1855	object *
		1856	tmp, *
		1857	otmp;
1895		1858
1896	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1859	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1860	{
1897	dump_object(op);	1861	dump_object (op);
1898	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1862	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", errmsg);
1899	return op;	1863	return op;
1900	}	1864	}
		1865
1901	if(where==NULL) {	1866	if (where == NULL)
		1867	{
1902	dump_object(op);	1868	dump_object (op);
1903	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);	1869	LOG (llevError, "Trying to put object in NULL.\n%s\n", errmsg);
1904	return op;	1870	return op;
1905	}	1871	}
		1872
1906	if (where->head) {	1873	if (where->head)
1907	LOG(llevDebug,	1874	{
1908	"Warning: Tried to insert object wrong part of multipart object.\n");	1875	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1909	where = where->head;	1876	where = where->head;
1910	}	1877	}
		1878
1911	if (op->more) {	1879	if (op->more)
		1880	{
1912	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1881	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1913	op->name, op->count);
1914	return op;	1882	return op;
1915	}	1883	}
		1884
1916	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1885	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1917	CLEAR_FLAG(op, FLAG_REMOVED);	1886	CLEAR_FLAG (op, FLAG_REMOVED);
1918	if(op->nrof) {	1887	if (op->nrof)
		1888	{
1919	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1889	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)
1920	if ( CAN_MERGE(tmp,op) ) {	1890	if (CAN_MERGE (tmp, op))
		1891	{
1921	/* return the original object and remove inserted object	1892	/* return the original object and remove inserted object
1922	(client needs the original object) */	1893	(client needs the original object) */
1923	tmp->nrof += op->nrof;	1894	tmp->nrof += op->nrof;
1924	/* Weight handling gets pretty funky. Since we are adding to	1895	/* Weight handling gets pretty funky. Since we are adding to
1925	* tmp->nrof, we need to increase the weight.	1896	* tmp->nrof, we need to increase the weight.
1926	*/	1897	*/
1927	add_weight (where, op->weight*op->nrof);	1898	add_weight (where, op->weight * op->nrof);
1928	SET_FLAG(op, FLAG_REMOVED);	1899	SET_FLAG (op, FLAG_REMOVED);
1929	free_object(op); /* free the inserted object */	1900	free_object (op); /* free the inserted object */
1930	op = tmp;	1901	op = tmp;
1931	remove_ob (op); /* and fix old object's links */	1902	remove_ob (op); /* and fix old object's links */
1932	CLEAR_FLAG(op, FLAG_REMOVED);	1903	CLEAR_FLAG (op, FLAG_REMOVED);
1933	break;	1904	break;
1934	}	1905	}
1935		1906
1936	/* I assume combined objects have no inventory	1907	/* I assume combined objects have no inventory
1937	* We add the weight - this object could have just been removed	1908	* We add the weight - this object could have just been removed
1938	* (if it was possible to merge). calling remove_ob will subtract	1909	* (if it was possible to merge). calling remove_ob will subtract
1939	* the weight, so we need to add it in again, since we actually do	1910	* the weight, so we need to add it in again, since we actually do
1940	* the linking below	1911	* the linking below
1941	*/	1912	*/
1942	add_weight (where, op->weight*op->nrof);	1913	add_weight (where, op->weight * op->nrof);
		1914	}
1943	} else	1915	else
1944	add_weight (where, (op->weight+op->carrying));	1916	add_weight (where, (op->weight + op->carrying));
1945		1917
1946	otmp=is_player_inv(where);	1918	otmp = is_player_inv (where);
1947	if (otmp&&otmp->contr!=NULL) {	1919	if (otmp && otmp->contr != NULL)
		1920	{
1948	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1921	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1949	fix_player(otmp);	1922	fix_player (otmp);
1950	}	1923	}
1951		1924
1952	op->map=NULL;	1925	op->map = NULL;
1953	op->env=where;	1926	op->env = where;
1954	op->above=NULL;	1927	op->above = NULL;
1955	op->below=NULL;	1928	op->below = NULL;
1956	op->x=0,op->y=0;	1929	op->x = 0, op->y = 0;
1957	op->ox=0,op->oy=0;
1958		1930
1959	/* reset the light list and los of the players on the map */	1931	/* reset the light list and los of the players on the map */
1960	if((op->glow_radius!=0)&&where->map)	1932	if ((op->glow_radius != 0) && where->map)
1961	{	1933	{
1962	#ifdef DEBUG_LIGHTS	1934	#ifdef DEBUG_LIGHTS
1963	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1935	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1964	op->name);
1965	#endif /* DEBUG_LIGHTS */	1936	#endif /* DEBUG_LIGHTS */
		1937	if (MAP_DARKNESS (where->map))
1966	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1938	update_all_los (where->map, where->x, where->y);
1967	}	1939	}
1968		1940
1969	/* Client has no idea of ordering so lets not bother ordering it here.	1941	/* Client has no idea of ordering so lets not bother ordering it here.
1970	* It sure simplifies this function...	1942	* It sure simplifies this function...
1971	*/	1943	*/
1972	if (where->inv==NULL)	1944	if (where->inv == NULL)
1973	where->inv=op;	1945	where->inv = op;
1974	else {	1946	else
		1947	{
1975	op->below = where->inv;	1948	op->below = where->inv;
1976	op->below->above = op;	1949	op->below->above = op;
1977	where->inv = op;	1950	where->inv = op;
1978	}	1951	}
1979	return op;	1952	return op;
1980	}	1953	}
1981		1954
1982	/*	1955	/*
1983	* Checks if any objects has a move_type that matches objects	1956	* Checks if any objects has a move_type that matches objects
…		…
1998	* MSW 2001-07-08: Check all objects on space, not just those below	1971	* MSW 2001-07-08: Check all objects on space, not just those below
1999	* object being inserted. insert_ob_in_map may not put new objects	1972	* object being inserted. insert_ob_in_map may not put new objects
2000	* on top.	1973	* on top.
2001	*/	1974	*/
2002		1975
		1976	int
2003	int check_move_on (object *op, object *originator)	1977	check_move_on (object *op, object *originator)
2004	{	1978	{
2005	object *tmp;	1979	object *
2006	tag_t tag;	1980	tmp;
2007	mapstruct *m=op->map;	1981	tag_t
		1982	tag;
		1983	mapstruct *
		1984	m = op->map;
		1985	int
2008	int x=op->x, y=op->y;	1986	x = op->x, y = op->y;
2009	MoveType move_on, move_slow, move_block;
2010		1987
		1988	MoveType
		1989	move_on,
		1990	move_slow,
		1991	move_block;
		1992
2011	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1993	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2012	return 0;
2013
2014	tag = op->count;
2015
2016	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
2017	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
2018	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
2019
2020	/* if nothing on this space will slow op down or be applied,
2021	* no need to do checking below. have to make sure move_type
2022	* is set, as lots of objects don't have it set - we treat that
2023	* as walking.
2024	*/
2025	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
2026	return 0;
2027
2028	/* This is basically inverse logic of that below - basically,
2029	* if the object can avoid the move on or slow move, they do so,
2030	* but can't do it if the alternate movement they are using is
2031	* blocked. Logic on this seems confusing, but does seem correct.
2032	*/
2033	if ((op->move_type & ~move_on & ~move_block) != 0 &&
2034	(op->move_type & ~move_slow & ~move_block) != 0) return 0;
2035
2036	/* The objects have to be checked from top to bottom.
2037	* Hence, we first go to the top:
2038	*/
2039
2040	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&
2041	tmp->above!=NULL; tmp=tmp->above) {
2042	/* Trim the search when we find the first other spell effect
2043	* this helps performance so that if a space has 50 spell objects,
2044	* we don't need to check all of them.
2045	*/
2046	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;
2047	}
2048	for(;tmp!=NULL; tmp=tmp->below) {
2049	if (tmp == op) continue; /* Can't apply yourself */
2050
2051	/* Check to see if one of the movement types should be slowed down.
2052	* Second check makes sure that the movement types not being slowed
2053	* (~slow_move) is not blocked on this space - just because the
2054	* space doesn't slow down swimming (for example), if you can't actually
2055	* swim on that space, can't use it to avoid the penalty.
2056	*/
2057	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {
2058	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2059	((op->move_type & tmp->move_slow) &&
2060	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {
2061
2062	float diff;
2063
2064	diff = tmp->move_slow_penalty*FABS(op->speed);
2065	if (op->type == PLAYER) {
2066	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||
2067	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {
2068	diff /= 4.0;
2069	}
2070	}
2071	op->speed_left -= diff;
2072	}
2073	}
2074
2075	/* Basically same logic as above, except now for actual apply. */
2076	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2077	((op->move_type & tmp->move_on) &&
2078	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {
2079
2080	move_apply(tmp, op, originator);
2081	if (was_destroyed (op, tag))
2082	return 1;
2083
2084	/* what the person/creature stepped onto has moved the object
2085	* someplace new. Don't process any further - if we did,
2086	* have a feeling strange problems would result.
2087	*/
2088	if (op->map != m || op->x != x || op->y != y) return 0;
2089	}
2090	}
2091	return 0;	1994	return 0;
		1995
		1996	tag = op->count;
		1997
		1998	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1999	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		2000	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		2001
		2002	/* if nothing on this space will slow op down or be applied,
		2003	* no need to do checking below. have to make sure move_type
		2004	* is set, as lots of objects don't have it set - we treat that
		2005	* as walking.
		2006	*/
		2007	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		2008	return 0;
		2009
		2010	/* This is basically inverse logic of that below - basically,
		2011	* if the object can avoid the move on or slow move, they do so,
		2012	* but can't do it if the alternate movement they are using is
		2013	* blocked. Logic on this seems confusing, but does seem correct.
		2014	*/
		2015	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		2016	return 0;
		2017
		2018	/* The objects have to be checked from top to bottom.
		2019	* Hence, we first go to the top:
		2020	*/
		2021
		2022	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
		2023	{
		2024	/* Trim the search when we find the first other spell effect
		2025	* this helps performance so that if a space has 50 spell objects,
		2026	* we don't need to check all of them.
		2027	*/
		2028	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		2029	break;
		2030	}
		2031
		2032	for (; tmp; tmp = tmp->below)
		2033	{
		2034	if (tmp == op)
		2035	continue; /* Can't apply yourself */
		2036
		2037	/* Check to see if one of the movement types should be slowed down.
		2038	* Second check makes sure that the movement types not being slowed
		2039	* (~slow_move) is not blocked on this space - just because the
		2040	* space doesn't slow down swimming (for example), if you can't actually
		2041	* swim on that space, can't use it to avoid the penalty.
		2042	*/
		2043	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		2044	{
		2045	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		2046	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		2047	{
		2048
		2049	float
		2050	diff = tmp->move_slow_penalty * FABS (op->speed);
		2051
		2052	if (op->type == PLAYER)
		2053	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		2054	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		2055	diff /= 4.0;
		2056
		2057	op->speed_left -= diff;
		2058	}
		2059	}
		2060
		2061	/* Basically same logic as above, except now for actual apply. */
		2062	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		2063	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		2064	{
		2065	move_apply (tmp, op, originator);
		2066
		2067	if (was_destroyed (op, tag))
		2068	return 1;
		2069
		2070	/* what the person/creature stepped onto has moved the object
		2071	* someplace new. Don't process any further - if we did,
		2072	* have a feeling strange problems would result.
		2073	*/
		2074	if (op->map != m || op->x != x || op->y != y)
		2075	return 0;
		2076	}
		2077	}
		2078
		2079	return 0;
2092	}	2080	}
2093		2081
2094	/*	2082	/*
2095	* present_arch(arch, map, x, y) searches for any objects with	2083	* present_arch(arch, map, x, y) searches for any objects with
2096	* a matching archetype at the given map and coordinates.	2084	* a matching archetype at the given map and coordinates.
2097	* The first matching object is returned, or NULL if none.	2085	* The first matching object is returned, or NULL if none.
2098	*/	2086	*/
2099		2087
		2088	object *
2100	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	2089	present_arch (const archetype *at, mapstruct *m, int x, int y)
		2090	{
2101	object *tmp;	2091	object *
		2092	tmp;
		2093
2102	if(m==NULL || out_of_map(m,x,y)) {	2094	if (m == NULL || out_of_map (m, x, y))
		2095	{
2103	LOG(llevError,"Present_arch called outside map.\n");	2096	LOG (llevError, "Present_arch called outside map.\n");
2104	return NULL;	2097	return NULL;
2105	}	2098	}
2106	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	2099	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2107	if(tmp->arch == at)	2100	if (tmp->arch == at)
2108	return tmp;	2101	return tmp;
2109	return NULL;	2102	return NULL;
2110	}	2103	}
2111		2104
2112	/*	2105	/*
2113	* present(type, map, x, y) searches for any objects with	2106	* present(type, map, x, y) searches for any objects with
2114	* a matching type variable at the given map and coordinates.	2107	* a matching type variable at the given map and coordinates.
2115	* The first matching object is returned, or NULL if none.	2108	* The first matching object is returned, or NULL if none.
2116	*/	2109	*/
2117		2110
		2111	object *
2118	object *present(unsigned char type,mapstruct *m, int x,int y) {	2112	present (unsigned char type, mapstruct *m, int x, int y)
		2113	{
2119	object *tmp;	2114	object *
		2115	tmp;
		2116
2120	if(out_of_map(m,x,y)) {	2117	if (out_of_map (m, x, y))
		2118	{
2121	LOG(llevError,"Present called outside map.\n");	2119	LOG (llevError, "Present called outside map.\n");
2122	return NULL;	2120	return NULL;
2123	}	2121	}
2124	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	2122	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2125	if(tmp->type==type)	2123	if (tmp->type == type)
2126	return tmp;	2124	return tmp;
2127	return NULL;	2125	return NULL;
2128	}	2126	}
2129		2127
2130	/*	2128	/*
2131	* present_in_ob(type, object) searches for any objects with	2129	* present_in_ob(type, object) searches for any objects with
2132	* a matching type variable in the inventory of the given object.	2130	* a matching type variable in the inventory of the given object.
2133	* The first matching object is returned, or NULL if none.	2131	* The first matching object is returned, or NULL if none.
2134	*/	2132	*/
2135		2133
		2134	object *
2136	object *present_in_ob(unsigned char type, const object *op) {	2135	present_in_ob (unsigned char type, const object *op)
		2136	{
2137	object *tmp;	2137	object *
		2138	tmp;
		2139
2138	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2140	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2139	if(tmp->type==type)	2141	if (tmp->type == type)
2140	return tmp;	2142	return tmp;
2141	return NULL;	2143	return NULL;
2142	}	2144	}
2143		2145
2144	/*	2146	/*
…		…
2154	* the object name, not the archetype name. this is so that the	2156	* the object name, not the archetype name. this is so that the
2155	* spell code can use one object type (force), but change it's name	2157	* spell code can use one object type (force), but change it's name
2156	* to be unique.	2158	* to be unique.
2157	*/	2159	*/
2158		2160
		2161	object *
2159	object *present_in_ob_by_name(int type, const char *str, const object *op) {	2162	present_in_ob_by_name (int type, const char *str, const object *op)
		2163	{
2160	object *tmp;	2164	object *
		2165	tmp;
2161		2166
2162	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	2167	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2168	{
2163	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	2169	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2164	return tmp;	2170	return tmp;
2165	}	2171	}
2166	return NULL;	2172	return NULL;
2167	}	2173	}
2168		2174
2169	/*	2175	/*
2170	* present_arch_in_ob(archetype, object) searches for any objects with	2176	* present_arch_in_ob(archetype, object) searches for any objects with
2171	* a matching archetype in the inventory of the given object.	2177	* a matching archetype in the inventory of the given object.
2172	* The first matching object is returned, or NULL if none.	2178	* The first matching object is returned, or NULL if none.
2173	*/	2179	*/
2174		2180
		2181	object *
2175	object *present_arch_in_ob(const archetype *at, const object *op) {	2182	present_arch_in_ob (const archetype *at, const object *op)
		2183	{
2176	object *tmp;	2184	object *
		2185	tmp;
		2186
2177	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2187	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2178	if( tmp->arch == at)	2188	if (tmp->arch == at)
2179	return tmp;	2189	return tmp;
2180	return NULL;	2190	return NULL;
2181	}	2191	}
2182		2192
2183	/*	2193	/*
2184	* activate recursively a flag on an object inventory	2194	* activate recursively a flag on an object inventory
2185	*/	2195	*/
		2196	void
2186	void flag_inv(object*op, int flag){	2197	flag_inv (object *op, int flag)
		2198	{
2187	object *tmp;	2199	object *
		2200	tmp;
		2201
2188	if(op->inv)	2202	if (op->inv)
2189	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2203	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2204	{
2190	SET_FLAG(tmp, flag);	2205	SET_FLAG (tmp, flag);
2191	flag_inv(tmp,flag);	2206	flag_inv (tmp, flag);
2192	}	2207	}
2193	}/*	2208	} /*
2194	* desactivate recursively a flag on an object inventory	2209	* desactivate recursively a flag on an object inventory
2195	*/	2210	*/
		2211	void
2196	void unflag_inv(object*op, int flag){	2212	unflag_inv (object *op, int flag)
		2213	{
2197	object *tmp;	2214	object *
		2215	tmp;
		2216
2198	if(op->inv)	2217	if (op->inv)
2199	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2218	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2219	{
2200	CLEAR_FLAG(tmp, flag);	2220	CLEAR_FLAG (tmp, flag);
2201	unflag_inv(tmp,flag);	2221	unflag_inv (tmp, flag);
2202	}	2222	}
2203	}	2223	}
2204		2224
2205	/*	2225	/*
2206	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	2226	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2207	* all it's inventory (recursively).	2227	* all it's inventory (recursively).
2208	* If checksums are used, a player will get set_cheat called for	2228	* If checksums are used, a player will get set_cheat called for
2209	* him/her-self and all object carried by a call to this function.	2229	* him/her-self and all object carried by a call to this function.
2210	*/	2230	*/
2211		2231
		2232	void
2212	void set_cheat(object *op) {	2233	set_cheat (object *op)
		2234	{
2213	SET_FLAG(op, FLAG_WAS_WIZ);	2235	SET_FLAG (op, FLAG_WAS_WIZ);
2214	flag_inv(op, FLAG_WAS_WIZ);	2236	flag_inv (op, FLAG_WAS_WIZ);
2215	}	2237	}
2216		2238
2217	/*	2239	/*
2218	* find_free_spot(object, map, x, y, start, stop) will search for	2240	* find_free_spot(object, map, x, y, start, stop) will search for
2219	* a spot at the given map and coordinates which will be able to contain	2241	* a spot at the given map and coordinates which will be able to contain
…		…
2234	* to know if the space in question will block the object. We can't use	2256	* to know if the space in question will block the object. We can't use
2235	* the archetype because that isn't correct if the monster has been	2257	* the archetype because that isn't correct if the monster has been
2236	* customized, changed states, etc.	2258	* customized, changed states, etc.
2237	*/	2259	*/
2238		2260
		2261	int
2239	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2262	find_free_spot (const object *ob, mapstruct *m, int x, int y, int start, int stop)
		2263	{
		2264	int
		2265	i,
2240	int i,index=0, flag;	2266	index = 0, flag;
		2267	static int
2241	static int altern[SIZEOFFREE];	2268	altern[SIZEOFFREE];
2242		2269
2243	for(i=start;i<stop;i++) {	2270	for (i = start; i < stop; i++)
		2271	{
2244	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2272	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2245	if(!flag)	2273	if (!flag)
2246	altern[index++]=i;	2274	altern[index++] = i;
2247		2275
2248	/* Basically, if we find a wall on a space, we cut down the search size.	2276	/* Basically, if we find a wall on a space, we cut down the search size.
2249	* In this way, we won't return spaces that are on another side of a wall.	2277	* In this way, we won't return spaces that are on another side of a wall.
2250	* This mostly work, but it cuts down the search size in all directions -	2278	* This mostly work, but it cuts down the search size in all directions -
2251	* if the space being examined only has a wall to the north and empty	2279	* if the space being examined only has a wall to the north and empty
2252	* spaces in all the other directions, this will reduce the search space	2280	* spaces in all the other directions, this will reduce the search space
2253	* to only the spaces immediately surrounding the target area, and	2281	* to only the spaces immediately surrounding the target area, and
2254	* won't look 2 spaces south of the target space.	2282	* won't look 2 spaces south of the target space.
2255	*/	2283	*/
2256	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2284	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)
2257	stop=maxfree[i];	2285	stop = maxfree[i];
2258	}	2286	}
2259	if(!index) return -1;	2287	if (!index)
		2288	return -1;
2260	return altern[RANDOM()%index];	2289	return altern[RANDOM () % index];
2261	}	2290	}
2262		2291
2263	/*	2292	/*
2264	* find_first_free_spot(archetype, mapstruct, x, y) works like	2293	* find_first_free_spot(archetype, mapstruct, x, y) works like
2265	* find_free_spot(), but it will search max number of squares.	2294	* find_free_spot(), but it will search max number of squares.
2266	* But it will return the first available spot, not a random choice.	2295	* But it will return the first available spot, not a random choice.
2267	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2296	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2268	*/	2297	*/
2269		2298
		2299	int
2270	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2300	find_first_free_spot (const object *ob, mapstruct *m, int x, int y)
		2301	{
		2302	int
2271	int i;	2303	i;
		2304
2272	for(i=0;i<SIZEOFFREE;i++) {	2305	for (i = 0; i < SIZEOFFREE; i++)
		2306	{
2273	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2307	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2274	return i;	2308	return i;
2275	}	2309	}
2276	return -1;	2310	return -1;
2277	}	2311	}
2278		2312
2279	/*	2313	/*
2280	* The function permute(arr, begin, end) randomly reorders the array	2314	* The function permute(arr, begin, end) randomly reorders the array
2281	* arr[begin..end-1].	2315	* arr[begin..end-1].
2282	*/	2316	*/
		2317	static void
2283	static void permute(int *arr, int begin, int end)	2318	permute (int *arr, int begin, int end)
2284	{	2319	{
2285	int i, j, tmp, len;	2320	int
		2321	i,
		2322	j,
		2323	tmp,
		2324	len;
2286		2325
2287	len = end-begin;	2326	len = end - begin;
2288	for(i = begin; i < end; i++)	2327	for (i = begin; i < end; i++)
2289	{	2328	{
2290	j = begin+RANDOM()%len;	2329	j = begin + RANDOM () % len;
2291		2330
2292	tmp = arr[i];	2331	tmp = arr[i];
2293	arr[i] = arr[j];	2332	arr[i] = arr[j];
2294	arr[j] = tmp;	2333	arr[j] = tmp;
2295	}	2334	}
2296	}	2335	}
2297		2336
2298	/* new function to make monster searching more efficient, and effective!	2337	/* new function to make monster searching more efficient, and effective!
2299	* This basically returns a randomized array (in the passed pointer) of	2338	* This basically returns a randomized array (in the passed pointer) of
2300	* the spaces to find monsters. In this way, it won't always look for	2339	* the spaces to find monsters. In this way, it won't always look for
2301	* monsters to the north first. However, the size of the array passed	2340	* monsters to the north first. However, the size of the array passed
2302	* covers all the spaces, so within that size, all the spaces within	2341	* covers all the spaces, so within that size, all the spaces within
2303	* the 3x3 area will be searched, just not in a predictable order.	2342	* the 3x3 area will be searched, just not in a predictable order.
2304	*/	2343	*/
		2344	void
2305	void get_search_arr(int *search_arr)	2345	get_search_arr (int *search_arr)
2306	{	2346	{
		2347	int
2307	int i;	2348	i;
2308		2349
2309	for(i = 0; i < SIZEOFFREE; i++)	2350	for (i = 0; i < SIZEOFFREE; i++)
2310	{	2351	{
2311	search_arr[i] = i;	2352	search_arr[i] = i;
2312	}	2353	}
2313		2354
2314	permute(search_arr, 1, SIZEOFFREE1+1);	2355	permute (search_arr, 1, SIZEOFFREE1 + 1);
2315	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2356	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2316	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2357	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2317	}	2358	}
2318		2359
2319	/*	2360	/*
2320	* find_dir(map, x, y, exclude) will search some close squares in the	2361	* find_dir(map, x, y, exclude) will search some close squares in the
2321	* given map at the given coordinates for live objects.	2362	* given map at the given coordinates for live objects.
…		…
2327	* is actually want is going to try and move there. We need this info	2368	* is actually want is going to try and move there. We need this info
2328	* because we have to know what movement the thing looking to move	2369	* because we have to know what movement the thing looking to move
2329	* there is capable of.	2370	* there is capable of.
2330	*/	2371	*/
2331		2372
		2373	int
2332	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2374	find_dir (mapstruct *m, int x, int y, object *exclude)
		2375	{
		2376	int
		2377	i,
2333	int i,max=SIZEOFFREE, mflags;	2378	max = SIZEOFFREE, mflags;
		2379
2334	sint16 nx, ny;	2380	sint16 nx, ny;
2335	object *tmp;	2381	object *
		2382	tmp;
2336	mapstruct *mp;	2383	mapstruct *
		2384	mp;
		2385
2337	MoveType blocked, move_type;	2386	MoveType blocked, move_type;
2338		2387
2339	if (exclude && exclude->head) {	2388	if (exclude && exclude->head)
		2389	{
2340	exclude = exclude->head;	2390	exclude = exclude->head;
2341	move_type = exclude->move_type;	2391	move_type = exclude->move_type;
2342	} else {	2392	}
		2393	else
		2394	{
2343	/* If we don't have anything, presume it can use all movement types. */	2395	/* If we don't have anything, presume it can use all movement types. */
2344	move_type=MOVE_ALL;	2396	move_type = MOVE_ALL;
		2397	}
		2398
		2399	for (i = 1; i < max; i++)
2345	}	2400	{
2346		2401	mp = m;
2347	for(i=1;i<max;i++) {
2348	mp = m;
2349	nx = x + freearr_x[i];	2402	nx = x + freearr_x[i];
2350	ny = y + freearr_y[i];	2403	ny = y + freearr_y[i];
2351		2404
2352	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2405	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
2353	if (mflags & P_OUT_OF_MAP) {	2406	if (mflags & P_OUT_OF_MAP)
		2407	{
2354	max = maxfree[i];	2408	max = maxfree[i];
2355	} else {	2409	}
		2410	else
		2411	{
2356	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2412	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
2357		2413
2358	if ((move_type & blocked) == move_type) {	2414	if ((move_type & blocked) == move_type)
2359	max=maxfree[i];	2415	{
		2416	max = maxfree[i];
		2417	}
2360	} else if (mflags & P_IS_ALIVE) {	2418	else if (mflags & P_IS_ALIVE)
		2419	{
2361	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2420	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2362	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2421	{
2363	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2422	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2364	break;	2423	{
2365	}	2424	break;
2366	}	2425	}
2367	if(tmp) {	2426	}
2368	return freedir[i];	2427	if (tmp)
2369	}	2428	{
		2429	return freedir[i];
		2430	}
		2431	}
		2432	}
2370	}	2433	}
2371	}
2372	}
2373	return 0;	2434	return 0;
2374	}	2435	}
2375		2436
2376	/*	2437	/*
2377	* distance(object 1, object 2) will return the square of the	2438	* distance(object 1, object 2) will return the square of the
2378	* distance between the two given objects.	2439	* distance between the two given objects.
2379	*/	2440	*/
2380		2441
		2442	int
2381	int distance(const object *ob1, const object *ob2) {	2443	distance (const object *ob1, const object *ob2)
		2444	{
2382	int i;	2445	int
2383	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2446	i;
2384	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2447
		2448	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2385	return i;	2449	return i;
2386	}	2450	}
2387		2451
2388	/*	2452	/*
2389	* find_dir_2(delta-x,delta-y) will return a direction in which	2453	* find_dir_2(delta-x,delta-y) will return a direction in which
2390	* an object which has subtracted the x and y coordinates of another	2454	* an object which has subtracted the x and y coordinates of another
2391	* object, needs to travel toward it.	2455	* object, needs to travel toward it.
2392	*/	2456	*/
2393		2457
		2458	int
2394	int find_dir_2(int x, int y) {	2459	find_dir_2 (int x, int y)
		2460	{
2395	int q;	2461	int
		2462	q;
2396		2463
2397	if(y)	2464	if (y)
2398	q=x*100/y;	2465	q = x * 100 / y;
2399	else if (x)	2466	else if (x)
2400	q= -300*x;	2467	q = -300 * x;
2401	else	2468	else
2402	return 0;	2469	return 0;
2403		2470
2404	if(y>0) {	2471	if (y > 0)
		2472	{
2405	if(q < -242)	2473	if (q < -242)
2406	return 3 ;	2474	return 3;
2407	if (q < -41)	2475	if (q < -41)
2408	return 2 ;	2476	return 2;
2409	if (q < 41)	2477	if (q < 41)
2410	return 1 ;	2478	return 1;
2411	if (q < 242)	2479	if (q < 242)
2412	return 8 ;	2480	return 8;
2413	return 7 ;	2481	return 7;
2414	}	2482	}
2415		2483
2416	if (q < -242)	2484	if (q < -242)
2417	return 7 ;	2485	return 7;
2418	if (q < -41)	2486	if (q < -41)
2419	return 6 ;	2487	return 6;
2420	if (q < 41)	2488	if (q < 41)
2421	return 5 ;	2489	return 5;
2422	if (q < 242)	2490	if (q < 242)
2423	return 4 ;	2491	return 4;
2424		2492
2425	return 3 ;	2493	return 3;
2426	}	2494	}
2427		2495
2428	/*	2496	/*
2429	* absdir(int): Returns a number between 1 and 8, which represent	2497	* absdir(int): Returns a number between 1 and 8, which represent
2430	* the "absolute" direction of a number (it actually takes care of	2498	* the "absolute" direction of a number (it actually takes care of
2431	* "overflow" in previous calculations of a direction).	2499	* "overflow" in previous calculations of a direction).
2432	*/	2500	*/
2433		2501
		2502	int
2434	int absdir(int d) {	2503	absdir (int d)
2435	while(d<1) d+=8;	2504	{
2436	while(d>8) d-=8;	2505	while (d < 1)
		2506	d += 8;
		2507	while (d > 8)
		2508	d -= 8;
2437	return d;	2509	return d;
2438	}	2510	}
2439		2511
2440	/*	2512	/*
2441	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2513	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2442	* between two directions (which are expected to be absolute (see absdir())	2514	* between two directions (which are expected to be absolute (see absdir())
2443	*/	2515	*/
2444		2516
		2517	int
2445	int dirdiff(int dir1, int dir2) {	2518	dirdiff (int dir1, int dir2)
		2519	{
2446	int d;	2520	int
		2521	d;
		2522
2447	d = abs(dir1 - dir2);	2523	d = abs (dir1 - dir2);
2448	if(d>4)	2524	if (d > 4)
2449	d = 8 - d;	2525	d = 8 - d;
2450	return d;	2526	return d;
2451	}	2527	}
2452		2528
2453	/* peterm:	2529	/* peterm:
…		…
2458	* direction 4, 14, or 16 to get back to where we are.	2534	* direction 4, 14, or 16 to get back to where we are.
2459	* Moved from spell_util.c to object.c with the other related direction	2535	* Moved from spell_util.c to object.c with the other related direction
2460	* functions.	2536	* functions.
2461	*/	2537	*/
2462		2538
		2539	int
2463	int reduction_dir[SIZEOFFREE][3] = {	2540	reduction_dir[SIZEOFFREE][3] = {
2464	{0,0,0}, /* 0 */	2541	{0, 0, 0}, /* 0 */
2465	{0,0,0}, /* 1 */	2542	{0, 0, 0}, /* 1 */
2466	{0,0,0}, /* 2 */	2543	{0, 0, 0}, /* 2 */
2467	{0,0,0}, /* 3 */	2544	{0, 0, 0}, /* 3 */
2468	{0,0,0}, /* 4 */	2545	{0, 0, 0}, /* 4 */
2469	{0,0,0}, /* 5 */	2546	{0, 0, 0}, /* 5 */
2470	{0,0,0}, /* 6 */	2547	{0, 0, 0}, /* 6 */
2471	{0,0,0}, /* 7 */	2548	{0, 0, 0}, /* 7 */
2472	{0,0,0}, /* 8 */	2549	{0, 0, 0}, /* 8 */
2473	{8,1,2}, /* 9 */	2550	{8, 1, 2}, /* 9 */
2474	{1,2,-1}, /* 10 */	2551	{1, 2, -1}, /* 10 */
2475	{2,10,12}, /* 11 */	2552	{2, 10, 12}, /* 11 */
2476	{2,3,-1}, /* 12 */	2553	{2, 3, -1}, /* 12 */
2477	{2,3,4}, /* 13 */	2554	{2, 3, 4}, /* 13 */
2478	{3,4,-1}, /* 14 */	2555	{3, 4, -1}, /* 14 */
2479	{4,14,16}, /* 15 */	2556	{4, 14, 16}, /* 15 */
2480	{5,4,-1}, /* 16 */	2557	{5, 4, -1}, /* 16 */
2481	{4,5,6}, /* 17 */	2558	{4, 5, 6}, /* 17 */
2482	{6,5,-1}, /* 18 */	2559	{6, 5, -1}, /* 18 */
2483	{6,20,18}, /* 19 */	2560	{6, 20, 18}, /* 19 */
2484	{7,6,-1}, /* 20 */	2561	{7, 6, -1}, /* 20 */
2485	{6,7,8}, /* 21 */	2562	{6, 7, 8}, /* 21 */
2486	{7,8,-1}, /* 22 */	2563	{7, 8, -1}, /* 22 */
2487	{8,22,24}, /* 23 */	2564	{8, 22, 24}, /* 23 */
2488	{8,1,-1}, /* 24 */	2565	{8, 1, -1}, /* 24 */
2489	{24,9,10}, /* 25 */	2566	{24, 9, 10}, /* 25 */
2490	{9,10,-1}, /* 26 */	2567	{9, 10, -1}, /* 26 */
2491	{10,11,-1}, /* 27 */	2568	{10, 11, -1}, /* 27 */
2492	{27,11,29}, /* 28 */	2569	{27, 11, 29}, /* 28 */
2493	{11,12,-1}, /* 29 */	2570	{11, 12, -1}, /* 29 */
2494	{12,13,-1}, /* 30 */	2571	{12, 13, -1}, /* 30 */
2495	{12,13,14}, /* 31 */	2572	{12, 13, 14}, /* 31 */
2496	{13,14,-1}, /* 32 */	2573	{13, 14, -1}, /* 32 */
2497	{14,15,-1}, /* 33 */	2574	{14, 15, -1}, /* 33 */
2498	{33,15,35}, /* 34 */	2575	{33, 15, 35}, /* 34 */
2499	{16,15,-1}, /* 35 */	2576	{16, 15, -1}, /* 35 */
2500	{17,16,-1}, /* 36 */	2577	{17, 16, -1}, /* 36 */
2501	{18,17,16}, /* 37 */	2578	{18, 17, 16}, /* 37 */
2502	{18,17,-1}, /* 38 */	2579	{18, 17, -1}, /* 38 */
2503	{18,19,-1}, /* 39 */	2580	{18, 19, -1}, /* 39 */
2504	{41,19,39}, /* 40 */	2581	{41, 19, 39}, /* 40 */
2505	{19,20,-1}, /* 41 */	2582	{19, 20, -1}, /* 41 */
2506	{20,21,-1}, /* 42 */	2583	{20, 21, -1}, /* 42 */
2507	{20,21,22}, /* 43 */	2584	{20, 21, 22}, /* 43 */
2508	{21,22,-1}, /* 44 */	2585	{21, 22, -1}, /* 44 */
2509	{23,22,-1}, /* 45 */	2586	{23, 22, -1}, /* 45 */
2510	{45,47,23}, /* 46 */	2587	{45, 47, 23}, /* 46 */
2511	{23,24,-1}, /* 47 */	2588	{23, 24, -1}, /* 47 */
2512	{24,9,-1}}; /* 48 */	2589	{24, 9, -1}
		2590	}; /* 48 */
2513		2591
2514	/* Recursive routine to step back and see if we can	2592	/* Recursive routine to step back and see if we can
2515	* find a path to that monster that we found. If not,	2593	* find a path to that monster that we found. If not,
2516	* we don't bother going toward it. Returns 1 if we	2594	* we don't bother going toward it. Returns 1 if we
2517	* can see a direct way to get it	2595	* can see a direct way to get it
2518	* Modified to be map tile aware -.MSW	2596	* Modified to be map tile aware -.MSW
2519	*/	2597	*/
2520
2521		2598
		2599
		2600	int
2522	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2601	can_see_monsterP (mapstruct *m, int x, int y, int dir)
		2602	{
2523	sint16 dx, dy;	2603	sint16 dx, dy;
		2604	int
2524	int mflags;	2605	mflags;
2525		2606
		2607	if (dir < 0)
2526	if(dir<0) return 0; /* exit condition: invalid direction */	2608	return 0; /* exit condition: invalid direction */
2527		2609
2528	dx = x + freearr_x[dir];	2610	dx = x + freearr_x[dir];
2529	dy = y + freearr_y[dir];	2611	dy = y + freearr_y[dir];
2530		2612
2531	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2613	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2532		2614
2533	/* This functional arguably was incorrect before - it was	2615	/* This functional arguably was incorrect before - it was
2534	* checking for P_WALL - that was basically seeing if	2616	* checking for P_WALL - that was basically seeing if
2535	* we could move to the monster - this is being more	2617	* we could move to the monster - this is being more
2536	* literal on if we can see it. To know if we can actually	2618	* literal on if we can see it. To know if we can actually
2537	* move to the monster, we'd need the monster passed in or	2619	* move to the monster, we'd need the monster passed in or
2538	* at least its move type.	2620	* at least its move type.
2539	*/	2621	*/
2540	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2622	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2623	return 0;
2541		2624
2542	/* yes, can see. */	2625	/* yes, can see. */
2543	if(dir < 9) return 1;	2626	if (dir < 9)
		2627	return 1;
2544	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2628	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |
2545	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2629	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2546	can_see_monsterP(m,x,y, reduction_dir[dir][2]);
2547	}	2630	}
2548		2631
2549		2632
2550		2633
2551	/*	2634	/*
2552	* can_pick(picker, item): finds out if an object is possible to be	2635	* can_pick(picker, item): finds out if an object is possible to be
2553	* picked up by the picker. Returnes 1 if it can be	2636	* picked up by the picker. Returnes 1 if it can be
2554	* picked up, otherwise 0.	2637	* picked up, otherwise 0.
2555	*	2638	*
…		…
2557	* core dumps if they do.	2640	* core dumps if they do.
2558	*	2641	*
2559	* Add a check so we can't pick up invisible objects (0.93.8)	2642	* Add a check so we can't pick up invisible objects (0.93.8)
2560	*/	2643	*/
2561		2644
		2645	int
2562	int can_pick(const object *who, const object *item) {	2646	can_pick (const object *who, const object *item)
		2647	{
2563	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2648	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2564	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2649	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2565	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2650	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2566	(who->type==PLAYER||item->weight<who->weight/3));
2567	}	2651	}
2568		2652
2569		2653
2570	/*	2654	/*
2571	* create clone from object to another	2655	* create clone from object to another
2572	*/	2656	*/
		2657	object *
2573	object *object_create_clone (object *asrc) {	2658	object_create_clone (object *asrc)
		2659	{
		2660	object *
2574	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2661	dst = NULL, *tmp, *src, *part, *prev, *item;
2575		2662
		2663	if (!asrc)
2576	if(!asrc) return NULL;	2664	return NULL;
2577	src = asrc;	2665	src = asrc;
2578	if(src->head)	2666	if (src->head)
2579	src = src->head;	2667	src = src->head;
2580		2668
2581	prev = NULL;	2669	prev = NULL;
2582	for(part = src; part; part = part->more) {	2670	for (part = src; part; part = part->more)
		2671	{
2583	tmp = get_object();	2672	tmp = get_object ();
2584	copy_object(part,tmp);	2673	copy_object (part, tmp);
2585	tmp->x -= src->x;	2674	tmp->x -= src->x;
2586	tmp->y -= src->y;	2675	tmp->y -= src->y;
2587	if(!part->head) {	2676	if (!part->head)
		2677	{
2588	dst = tmp;	2678	dst = tmp;
2589	tmp->head = NULL;	2679	tmp->head = NULL;
		2680	}
2590	} else {	2681	else
		2682	{
2591	tmp->head = dst;	2683	tmp->head = dst;
2592	}	2684	}
2593	tmp->more = NULL;	2685	tmp->more = NULL;
2594	if(prev)	2686	if (prev)
2595	prev->more = tmp;	2687	prev->more = tmp;
2596	prev = tmp;	2688	prev = tmp;
2597	}	2689	}
		2690
2598	/*** copy inventory ***/	2691	/*** copy inventory ***/
2599	for(item = src->inv; item; item = item->below) {	2692	for (item = src->inv; item; item = item->below)
		2693	{
2600	(void) insert_ob_in_ob(object_create_clone(item),dst);	2694	(void) insert_ob_in_ob (object_create_clone (item), dst);
2601	}	2695	}
2602		2696
2603	return dst;	2697	return dst;
2604	}	2698	}
2605		2699
2606	/* return true if the object was destroyed, 0 otherwise */	2700	/* return true if the object was destroyed, 0 otherwise */
		2701	int
2607	int was_destroyed (const object *op, tag_t old_tag)	2702	was_destroyed (const object *op, tag_t old_tag)
2608	{	2703	{
2609	/* checking for FLAG_FREED isn't necessary, but makes this function more	2704	/* checking for FLAG_FREED isn't necessary, but makes this function more
2610	* robust */	2705	* robust */
2611	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);	2706	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2612	}	2707	}
2613		2708
2614	/* GROS - Creates an object using a string representing its content. */	2709	/* GROS - Creates an object using a string representing its content. */
		2710
2615	/* Basically, we save the content of the string to a temp file, then call */	2711	/* Basically, we save the content of the string to a temp file, then call */
		2712
2616	/* load_object on it. I admit it is a highly inefficient way to make things, */	2713	/* load_object on it. I admit it is a highly inefficient way to make things, */
		2714
2617	/* but it was simple to make and allows reusing the load_object function. */	2715	/* but it was simple to make and allows reusing the load_object function. */
		2716
2618	/* Remember not to use load_object_str in a time-critical situation. */	2717	/* Remember not to use load_object_str in a time-critical situation. */
		2718
2619	/* Also remember that multiparts objects are not supported for now. */	2719	/* Also remember that multiparts objects are not supported for now. */
2620		2720
		2721	object *
2621	object* load_object_str(const char *obstr)	2722	load_object_str (const char *obstr)
2622	{	2723	{
2623	object *op;	2724	object *
2624	FILE *tempfile;	2725	op;
		2726	char
2625	char filename[MAX_BUF];	2727	filename[MAX_BUF];
		2728
2626	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2729	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
		2730
		2731	FILE *
2627	tempfile=fopen(filename,"w");	2732	tempfile = fopen (filename, "w");
		2733
2628	if (tempfile == NULL)	2734	if (tempfile == NULL)
2629	{	2735	{
2630	LOG(llevError,"Error - Unable to access load object temp file\n");	2736	LOG (llevError, "Error - Unable to access load object temp file\n");
2631	return NULL;	2737	return NULL;
2632	};	2738	}
		2739
2633	fprintf(tempfile,obstr);	2740	fprintf (tempfile, obstr);
2634	fclose(tempfile);	2741	fclose (tempfile);
2635		2742
2636	op=get_object();	2743	op = get_object ();
2637		2744
2638	tempfile=fopen(filename,"r");	2745	object_thawer thawer (filename);
2639	if (tempfile == NULL)	2746
2640	{	2747	if (thawer)
2641	LOG(llevError,"Error - Unable to read object temp file\n");	2748	load_object (thawer, op, 0);
2642	return NULL;	2749
2643	};
2644	load_object(tempfile,op,LO_NEWFILE,0);
2645	LOG(llevDebug," load str completed, object=%s\n",op->name);	2750	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2646	CLEAR_FLAG(op,FLAG_REMOVED);	2751	CLEAR_FLAG (op, FLAG_REMOVED);
2647	fclose(tempfile);	2752
2648	return op;	2753	return op;
2649	}	2754	}
2650		2755
2651	/* This returns the first object in who's inventory that	2756	/* This returns the first object in who's inventory that
2652	* has the same type and subtype match.	2757	* has the same type and subtype match.
2653	* returns NULL if no match.	2758	* returns NULL if no match.
2654	*/	2759	*/
		2760	object *
2655	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2761	find_obj_by_type_subtype (const object *who, int type, int subtype)
2656	{	2762	{
2657	object *tmp;	2763	object *
		2764	tmp;
2658		2765
2659	for (tmp=who->inv; tmp; tmp=tmp->below)	2766	for (tmp = who->inv; tmp; tmp = tmp->below)
2660	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2767	if (tmp->type == type && tmp->subtype == subtype)
		2768	return tmp;
2661		2769
2662	return NULL;	2770	return NULL;
2663	}	2771	}
2664		2772
2665	/* If ob has a field named key, return the link from the list,	2773	/* If ob has a field named key, return the link from the list,
2666	* otherwise return NULL.	2774	* otherwise return NULL.
2667	*	2775	*
2668	* key must be a passed in shared string - otherwise, this won't	2776	* key must be a passed in shared string - otherwise, this won't
2669	* do the desired thing.	2777	* do the desired thing.
2670	*/	2778	*/
		2779	key_value *
2671	key_value * get_ob_key_link(const object * ob, const char * key) {	2780	get_ob_key_link (const object *ob, const char *key)
		2781	{
2672	key_value * link;	2782	key_value *
2673		2783	link;
		2784
2674	for (link = ob->key_values; link != NULL; link = link->next) {	2785	for (link = ob->key_values; link != NULL; link = link->next)
		2786	{
2675	if (link->key == key) {	2787	if (link->key == key)
		2788	{
2676	return link;	2789	return link;
2677	}	2790	}
2678	}
2679		2791	}
		2792
2680	return NULL;	2793	return NULL;
2681	}	2794	}
2682		2795
2683	/*	2796	/*
2684	* Returns the value of op has an extra_field for key, or NULL.	2797	* Returns the value of op has an extra_field for key, or NULL.
2685	*	2798	*
2686	* The argument doesn't need to be a shared string.	2799	* The argument doesn't need to be a shared string.
2687	*	2800	*
2688	* The returned string is shared.	2801	* The returned string is shared.
2689	*/	2802	*/
		2803	const char *
2690	const char * get_ob_key_value(const object * op, const char * const key) {	2804	get_ob_key_value (const object *op, const char *const key)
		2805	{
2691	key_value * link;	2806	key_value *link;
2692	const char * canonical_key;	2807	shstr_cmp canonical_key (key);
		2808
		2809	if (!canonical_key)
2693		2810	{
2694	canonical_key = find_string(key);
2695
2696	if (canonical_key == NULL) {
2697	/* 1. There being a field named key on any object	2811	/* 1. There being a field named key on any object
2698	* implies there'd be a shared string to find.	2812	* implies there'd be a shared string to find.
2699	* 2. Since there isn't, no object has this field.	2813	* 2. Since there isn't, no object has this field.
2700	* 3. Therefore, *this* object doesn't have this field.	2814	* 3. Therefore, *this* object doesn't have this field.
2701	*/	2815	*/
2702	return NULL;	2816	return 0;
2703	}	2817	}
2704		2818
2705	/* This is copied from get_ob_key_link() above -	2819	/* This is copied from get_ob_key_link() above -
2706	* only 4 lines, and saves the function call overhead.	2820	* only 4 lines, and saves the function call overhead.
2707	*/	2821	*/
2708	for (link = op->key_values; link != NULL; link = link->next) {	2822	for (link = op->key_values; link; link = link->next)
2709	if (link->key == canonical_key) {	2823	if (link->key == canonical_key)
2710	return link->value;	2824	return link->value;
2711	}	2825
2712	}	2826	return 0;
2713	return NULL;
2714	}	2827	}
2715		2828
2716		2829
2717	/*	2830	/*
2718	* Updates the canonical_key in op to value.	2831	* Updates the canonical_key in op to value.
…		…
2722	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2835	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2723	* keys.	2836	* keys.
2724	*	2837	*
2725	* Returns TRUE on success.	2838	* Returns TRUE on success.
2726	*/	2839	*/
		2840	int
2727	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2841	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2842	{
		2843	key_value *
2728	key_value * field = NULL, *last=NULL;	2844	field = NULL, *last = NULL;
2729		2845
2730	for (field=op->key_values; field != NULL; field=field->next) {	2846	for (field = op->key_values; field != NULL; field = field->next)
2731	if (field->key != canonical_key) {
2732	last = field;
2733	continue;
2734	}
2735		2847	{
2736	if (field->value) FREE_AND_CLEAR_STR(field->value);	2848	if (field->key != canonical_key)
2737	if (value)	2849	{
2738	field->value = add_string(value);	2850	last = field;
2739	else {	2851	continue;
		2852	}
		2853
		2854	if (value)
		2855	field->value = value;
		2856	else
		2857	{
2740	/* Basically, if the archetype has this key set,	2858	/* Basically, if the archetype has this key set,
2741	* we need to store the null value so when we save	2859	* we need to store the null value so when we save
2742	* it, we save the empty value so that when we load,	2860	* it, we save the empty value so that when we load,
2743	* we get this value back again.	2861	* we get this value back again.
2744	*/	2862	*/
2745	if (get_ob_key_link(&op->arch->clone, canonical_key))	2863	if (get_ob_key_link (&op->arch->clone, canonical_key))
2746	field->value = NULL;	2864	field->value = 0;
2747	else {	2865	else
2748	/* Delete this link */	2866	{
2749	if (field->key) FREE_AND_CLEAR_STR(field->key);	2867	if (last)
2750	if (field->value) FREE_AND_CLEAR_STR(field->value);	2868	last->next = field->next;
2751	if (last) last->next = field->next;	2869	else
2752	else op->key_values = field->next;	2870	op->key_values = field->next;
2753	free(field);	2871
2754	}	2872	delete field;
2755	}	2873	}
		2874	}
2756	return TRUE;	2875	return TRUE;
2757	}	2876	}
2758	/* IF we get here, key doesn't exist */	2877	/* IF we get here, key doesn't exist */
2759		2878
2760	/* No field, we'll have to add it. */	2879	/* No field, we'll have to add it. */
		2880
		2881	if (!add_key)
2761		2882	{
2762	if (!add_key) {
2763	return FALSE;	2883	return FALSE;
2764	}	2884	}
2765	/* There isn't any good reason to store a null	2885	/* There isn't any good reason to store a null
2766	* value in the key/value list. If the archetype has	2886	* value in the key/value list. If the archetype has
2767	* this key, then we should also have it, so shouldn't	2887	* this key, then we should also have it, so shouldn't
2768	* be here. If user wants to store empty strings,	2888	* be here. If user wants to store empty strings,
2769	* should pass in ""	2889	* should pass in ""
2770	*/	2890	*/
2771	if (value == NULL) return TRUE;	2891	if (value == NULL)
2772
2773	field = (key_value *) malloc(sizeof(key_value));
2774
2775	field->key = add_refcount(canonical_key);
2776	field->value = add_string(value);
2777	/* Usual prepend-addition. */
2778	field->next = op->key_values;
2779	op->key_values = field;
2780
2781	return TRUE;	2892	return TRUE;
		2893
		2894	field = new key_value;
		2895
		2896	field->key = canonical_key;
		2897	field->value = value;
		2898	/* Usual prepend-addition. */
		2899	field->next = op->key_values;
		2900	op->key_values = field;
		2901
		2902	return TRUE;
2782	}	2903	}
2783		2904
2784	/*	2905	/*
2785	* Updates the key in op to value.	2906	* Updates the key in op to value.
2786	*	2907	*
…		…
2788	* and not add new ones.	2909	* and not add new ones.
2789	* In general, should be little reason FALSE is ever passed in for add_key	2910	* In general, should be little reason FALSE is ever passed in for add_key
2790	*	2911	*
2791	* Returns TRUE on success.	2912	* Returns TRUE on success.
2792	*/	2913	*/
		2914	int
2793	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2915	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2794	const char * canonical_key = NULL;	2916	{
2795	int floating_ref = FALSE;	2917	shstr key_ (key);
2796	int ret;	2918
		2919	return set_ob_key_value_s (op, key_, value, add_key);
		2920	}
		2921
		2922	object::depth_iterator::depth_iterator (object *container)
		2923	: iterator_base (container)
		2924	{
		2925	while (item->inv)
		2926	item = item->inv;
		2927	}
		2928
		2929	void
		2930	object::depth_iterator::next ()
		2931	{
		2932	if (item->below)
2797		2933	{
2798	/* HACK This mess is to make sure set_ob_value() passes a shared string	2934	item = item->below;
2799	* to get_ob_key_link(), without leaving a leaked refcount.	2935
2800	*/	2936	while (item->inv)
		2937	item = item->inv;
2801		2938	}
2802	canonical_key = find_string(key);	2939	else
2803	if (canonical_key == NULL) {	2940	item = item->env;
2804	canonical_key = add_string(key);
2805	floating_ref = TRUE;
2806	}
2807
2808	ret = set_ob_key_value_s(op, canonical_key, value, add_key);
2809
2810	if (floating_ref) {
2811	free_string(canonical_key);
2812	}
2813
2814	return ret;
2815	}	2941	}
		2942
		2943	// return a suitable string describing an objetc in enough detail to find it
		2944	const char *
		2945	object::debug_desc (char *info) const
		2946	{
		2947	char info2[256 * 3];
		2948	char *p = info;
		2949
		2950	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2951	count,
		2952	&name,
		2953	title ? " " : "",
		2954	title ? (const char *)title : "");
		2955
		2956	if (env)
		2957	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2958
		2959	if (map)
		2960	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2961
		2962	return info;
		2963	}
		2964
		2965	const char *
		2966	object::debug_desc () const
		2967	{
		2968	static char info[256 * 3];
		2969	return debug_desc (info);
		2970	}
		2971

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