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/cvs/deliantra/server/common/object.C

Comparing deliantra/server/common/object.C (file contents):
Revision 1.2 by root, Fri Aug 25 17:11:52 2006 UTC vs.
Revision 1.48 by root, Thu Sep 14 23:13:48 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.2 2006/08/25 17:11:52 root Exp $";
4	*/
5
6	/*	1	/*
7	CrossFire, A Multiplayer game for X-windows	2	CrossFire, A Multiplayer game for X-windows
8		3
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	5	Copyright (C) 1992 Frank Tore Johansen
…		…
21		16
22	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software	18	along with this program; if not, write to the Free Software
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25		20
26	The authors can be reached via e-mail at crossfire-devel@real-time.com	21	The authors can be reached via e-mail at <crossfire@schmorp.de>
27	*/	22	*/
28		23
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying	25	sub/add_weight will transcend the environment updating the carrying
31	variable. */	26	variable. */
32	#include <global.h>	27	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	28	#include <stdio.h>
35	#include <sys/types.h>	29	#include <sys/types.h>
36	#include <sys/uio.h>	30	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	31	#include <object.h>
39	#include <funcpoint.h>	32	#include <funcpoint.h>
40	#include <skills.h>
41	#include <loader.h>	33	#include <loader.h>
42	#ifdef MEMORY_DEBUG	34
43	int nroffreeobjects = 0;
44	int nrofallocobjects = 0;	35	int nrofallocobjects = 0;
45	#undef OBJ_EXPAND	36	static UUID uuid;
46	#define OBJ_EXPAND 1	37	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		38
53	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 */	39	object *active_objects; /* List of active objects that need to be processed */
56		40
57	void (*object_free_callback)(object *ob);	41	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
59	short freearr_x[SIZEOFFREE]=
60	{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,
61	0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3,-3,-3,-3,-3,-2,-1};	42	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
62	short freearr_y[SIZEOFFREE]=	43	};
63	{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,	44	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,
64	-3,-3,-3,-3,-2,-1,0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3};	45	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
65	int maxfree[SIZEOFFREE]=	46	};
66	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,	47	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,
67	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};	48	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
		49	};
68	int freedir[SIZEOFFREE]= {	50	int freedir[SIZEOFFREE] = {
69	0,1,2,3,4,5,6,7,8,1,2,2,2,3,4,4,4,5,6,6,6,7,8,8,8,	51	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
70	1,2,2,2,2,2,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,8};	52	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		53	};
71		54
		55	static void
		56	write_uuid (void)
		57	{
		58	char filename1[MAX_BUF], filename2[MAX_BUF];
		59
		60	sprintf (filename1, "%s/uuid", settings.localdir);
		61	sprintf (filename2, "%s/uuid~", settings.localdir);
		62
		63	FILE *fp;
		64
		65	if (!(fp = fopen (filename2, "w")))
		66	{
		67	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		68	return;
		69	}
		70
		71	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		72	fclose (fp);
		73	rename (filename2, filename1);
		74	}
		75
		76	static void
		77	read_uuid (void)
		78	{
		79	char filename[MAX_BUF];
		80
		81	sprintf (filename, "%s/uuid", settings.localdir);
		82
		83	FILE *fp;
		84
		85	if (!(fp = fopen (filename, "r")))
		86	{
		87	if (errno == ENOENT)
		88	{
		89	LOG (llevInfo, "RESET uid to 1\n");
		90	uuid.seq = 0;
		91	write_uuid ();
		92	return;
		93	}
		94
		95	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		96	_exit (1);
		97	}
		98
		99	int version;
		100	unsigned long long uid;
		101	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		102	{
		103	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		104	_exit (1);
		105	}
		106
		107	uuid.seq = uid;
		108	write_uuid ();
		109	LOG (llevDebug, "read UID: %lld\n", uid);
		110	fclose (fp);
		111	}
		112
		113	UUID
		114	gen_uuid ()
		115	{
		116	UUID uid;
		117
		118	uid.seq = ++uuid.seq;
		119
		120	if (!(uuid.seq & (UUID_SKIP - 1)))
		121	write_uuid ();
		122
		123	return uid;
		124	}
		125
		126	void
		127	init_uuid ()
		128	{
		129	read_uuid ();
		130	}
72		131
73	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	132	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		133	static int
74	static int compare_ob_value_lists_one(const object * wants, const object * has) {	134	compare_ob_value_lists_one (const object *wants, const object *has)
		135	{
75	key_value * wants_field;	136	key_value *wants_field;
76		137
77	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	138	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
78	* objects with lists are rare, and lists stay short. If not, use a	139	* objects with lists are rare, and lists stay short. If not, use a
79	* different structure or at least keep the lists sorted...	140	* different structure or at least keep the lists sorted...
80	*/	141	*/
81		142
82	/* For each field in wants, */	143	/* For each field in wants, */
83	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	144	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)
		145	{
84	key_value * has_field;	146	key_value *has_field;
85		147
86	/* Look for a field in has with the same key. */	148	/* Look for a field in has with the same key. */
87	has_field = get_ob_key_link(has, wants_field->key);	149	has_field = get_ob_key_link (has, wants_field->key);
		150
		151	if (has_field == NULL)
88		152	{
89	if (has_field == NULL) {
90	/* No field with that name. */	153	/* No field with that name. */
91	return FALSE;	154	return FALSE;
92	}
93		155	}
		156
94	/* Found the matching field. */	157	/* Found the matching field. */
95	if (has_field->value != wants_field->value) {	158	if (has_field->value != wants_field->value)
		159	{
96	/* Values don't match, so this half of the comparison is false. */	160	/* Values don't match, so this half of the comparison is false. */
97	return FALSE;	161	return FALSE;
98	}	162	}
99		163
100	/* If we get here, we found a match. Now for the next field in wants. */	164	/* If we get here, we found a match. Now for the next field in wants. */
101	}
102		165	}
		166
103	/* If we get here, every field in wants has a matching field in has. */	167	/* If we get here, every field in wants has a matching field in has. */
104	return TRUE;	168	return TRUE;
105	}	169	}
106		170
107	/* Returns TRUE if ob1 has the same key_values as ob2. */	171	/* Returns TRUE if ob1 has the same key_values as ob2. */
		172	static int
108	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	173	compare_ob_value_lists (const object *ob1, const object *ob2)
		174	{
109	/* However, there may be fields in has which aren't partnered in wants,	175	/* However, there may be fields in has which aren't partnered in wants,
110	* so we need to run the comparison *twice*. :(	176	* so we need to run the comparison *twice*. :(
111	*/	177	*/
112	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	178	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
113	}	179	}
114		180
115	/* Function examines the 2 objects given to it, and returns true if	181	/* Function examines the 2 objects given to it, and returns true if
116	* they can be merged together.	182	* they can be merged together.
117	*	183	*
…		…
123	*	189	*
124	* Improvements made with merge: Better checking on potion, and also	190	* Improvements made with merge: Better checking on potion, and also
125	* check weight	191	* check weight
126	*/	192	*/
127		193
128	int CAN_MERGE(object *ob1, object *ob2) {	194	bool object::can_merge (object *ob1, object *ob2)
129		195	{
130	/* A couple quicksanity checks */	196	/* A couple quicksanity checks */
131	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	197	if ((ob1 == ob2) || (ob1->type != ob2->type))
		198	return 0;
132		199
133	if (ob1->speed != ob2->speed) return 0;	200	if (ob1->speed != ob2->speed)
134	/* Note sure why the following is the case - either the object has to
135	* be animated or have a very low speed. Is this an attempted monster
136	* check?
137	*/
138	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)
139	return 0;	201	return 0;
140		202
141	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	203	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
142	* value could not be stored in a sint32 (which unfortunately sometimes is	204	* value could not be stored in a sint32 (which unfortunately sometimes is
143	* used to store nrof).	205	* used to store nrof).
144	*/	206	*/
145	if (ob1->nrof+ob2->nrof >= 1UL<<31)	207	if (ob1->nrof + ob2->nrof >= 1UL << 31)
146	return 0;	208	return 0;
147		209
148	/* This is really a spellbook check - really, we should
149	* check all objects in the inventory.
150	*/
151	if (ob1->inv || ob2->inv) {
152	/* if one object has inventory but the other doesn't, not equiv */
153	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) return 0;
154
155	/* Now check to see if the two inventory objects could merge */
156	if (!CAN_MERGE(ob1->inv, ob2->inv)) return 0;
157
158	/* inventory ok - still need to check rest of this object to see
159	* if it is valid.
160	*/
161	}
162
163	/* If the objects have been identified, set the BEEN_APPLIED flag.	210	/* If the objects have been identified, set the BEEN_APPLIED flag.
164	* This is to the comparison of the flags below will be OK. We	211	* This is to the comparison of the flags below will be OK. We
165	* just can't ignore the been applied or identified flags, as they	212	* just can't ignore the been applied or identified flags, as they
166	* are not equal - just if it has been identified, the been_applied	213	* are not equal - just if it has been identified, the been_applied
167	* flags lose any meaning.	214	* flags lose any meaning.
168	*/	215	*/
169	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))	216	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
170	SET_FLAG(ob1, FLAG_BEEN_APPLIED);	217	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
171		218
172	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))	219	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
173	SET_FLAG(ob2, FLAG_BEEN_APPLIED);	220	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
174		221
175		222
176	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	223	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
177	* being locked in inventory should prevent merging.	224	* being locked in inventory should prevent merging.
178	* 0x4 in flags3 is CLIENT_SENT	225	* 0x4 in flags3 is CLIENT_SENT
179	*/	226	*/
180	if ((ob1->arch != ob2->arch) ||	227	if ((ob1->arch != ob2->arch) ||
181	(ob1->flags[0] != ob2->flags[0]) ||	228	(ob1->flags[0] != ob2->flags[0]) ||
182	(ob1->flags[1] != ob2->flags[1]) ||	229	(ob1->flags[1] != ob2->flags[1]) ||
183	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||	230	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
184	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||	231	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
185	(ob1->name != ob2->name) ||	232	(ob1->name != ob2->name) ||
186	(ob1->title != ob2->title) ||	233	(ob1->title != ob2->title) ||
187	(ob1->msg != ob2->msg) ||	234	(ob1->msg != ob2->msg) ||
188	(ob1->weight != ob2->weight) ||	235	(ob1->weight != ob2->weight) ||
189	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||	236	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
190	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||	237	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
191	(ob1->attacktype != ob2->attacktype) ||	238	(ob1->attacktype != ob2->attacktype) ||
192	(ob1->magic != ob2->magic) ||	239	(ob1->magic != ob2->magic) ||
193	(ob1->slaying != ob2->slaying) ||	240	(ob1->slaying != ob2->slaying) ||
194	(ob1->skill != ob2->skill) ||	241	(ob1->skill != ob2->skill) ||
195	(ob1->value != ob2->value) ||	242	(ob1->value != ob2->value) ||
196	(ob1->animation_id != ob2->animation_id) ||	243	(ob1->animation_id != ob2->animation_id) ||
197	(ob1->client_type != ob2->client_type) ||	244	(ob1->client_type != ob2->client_type) ||
198	(ob1->materialname != ob2->materialname) ||	245	(ob1->materialname != ob2->materialname) ||
199	(ob1->lore != ob2->lore) ||	246	(ob1->lore != ob2->lore) ||
200	(ob1->subtype != ob2->subtype) ||	247	(ob1->subtype != ob2->subtype) ||
201	(ob1->move_type != ob2->move_type) ||	248	(ob1->move_type != ob2->move_type) ||
202	(ob1->move_block != ob2->move_block) ||	249	(ob1->move_block != ob2->move_block) ||
203	(ob1->move_allow != ob2->move_allow) ||	250	(ob1->move_allow != ob2->move_allow) ||
204	(ob1->move_on != ob2->move_on) ||	251	(ob1->move_on != ob2->move_on) ||
205	(ob1->move_off != ob2->move_off) ||	252	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))
206	(ob1->move_slow != ob2->move_slow) ||
207	(ob1->move_slow_penalty != ob2->move_slow_penalty)
208	)
209	return 0;	253	return 0;
210		254
		255	/* This is really a spellbook check - really, we should
		256	* check all objects in the inventory.
		257	*/
		258	if (ob1->inv || ob2->inv)
		259	{
		260	/* if one object has inventory but the other doesn't, not equiv */
		261	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
		262	return 0;
		263
		264	/* Now check to see if the two inventory objects could merge */
		265	if (!CAN_MERGE (ob1->inv, ob2->inv))
		266	return 0;
		267
		268	/* inventory ok - still need to check rest of this object to see
		269	* if it is valid.
		270	*/
		271	}
		272
211	/* Don't merge objects that are applied. With the new 'body' code,	273	/* Don't merge objects that are applied. With the new 'body' code,
212	* it is possible for most any character to have more than one of	274	* it is possible for most any character to have more than one of
213	* some items equipped, and we don't want those to merge.	275	* some items equipped, and we don't want those to merge.
214	*/	276	*/
215	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	277	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
216	return 0;	278	return 0;
217		279
		280	/* Note sure why the following is the case - either the object has to
		281	* be animated or have a very low speed. Is this an attempted monster
		282	* check?
		283	*/
		284	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
		285	return 0;
		286
218	switch (ob1->type) {	287	switch (ob1->type)
		288	{
219	case SCROLL:	289	case SCROLL:
220	if (ob1->level != ob2->level) return 0;	290	if (ob1->level != ob2->level)
		291	return 0;
221	break;	292	break;
222
223	}	293	}
		294
224	if (ob1->key_values != NULL || ob2->key_values != NULL) {	295	if (ob1->key_values != NULL || ob2->key_values != NULL)
		296	{
225	/* At least one of these has key_values. */	297	/* At least one of these has key_values. */
226	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {	298	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
227	/* One has fields, but the other one doesn't. */	299	/* One has fields, but the other one doesn't. */
228	return 0;	300	return 0;
229	} else if (!compare_ob_value_lists(ob1, ob2)) {	301	else if (!compare_ob_value_lists (ob1, ob2))
230	return 0;	302	return 0;
231	}	303	}
		304
		305	//TODO: generate an event or call into perl for additional checks
		306	if (ob1->self || ob2->self)
232	}	307	{
		308	ob1->optimise ();
		309	ob2->optimise ();
233		310
		311	if (ob1->self || ob2->self)
		312	return 0;
		313	}
		314
234	/* Everything passes, must be OK. */	315	/* Everything passes, must be OK. */
235	return 1;	316	return 1;
236	}	317	}
237		318
238	/*	319	/*
239	* sum_weight() is a recursive function which calculates the weight	320	* sum_weight() is a recursive function which calculates the weight
240	* an object is carrying. It goes through in figures out how much	321	* an object is carrying. It goes through in figures out how much
241	* containers are carrying, and sums it up.	322	* containers are carrying, and sums it up.
242	*/	323	*/
243	signed long sum_weight(object *op) {	324	long
		325	sum_weight (object *op)
		326	{
244	signed long sum;	327	long sum;
245	object *inv;	328	object *inv;
		329
246	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	330	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		331	{
247	if (inv->inv)	332	if (inv->inv)
248	sum_weight(inv);	333	sum_weight (inv);
249	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	334	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
250	}	335	}
		336
251	if (op->type == CONTAINER && op->stats.Str)	337	if (op->type == CONTAINER && op->stats.Str)
252	sum = (sum * (100 - op->stats.Str))/100;	338	sum = (sum * (100 - op->stats.Str)) / 100;
		339
253	if(op->carrying != sum)	340	if (op->carrying != sum)
254	op->carrying = sum;	341	op->carrying = sum;
		342
255	return sum;	343	return sum;
256	}	344	}
257		345
258	/**	346	/**
259	* Return the outermost environment object for a given object.	347	* Return the outermost environment object for a given object.
260	*/	348	*/
261		349
		350	object *
262	object *object_get_env_recursive (object *op) {	351	object_get_env_recursive (object *op)
		352	{
263	while (op->env != NULL)	353	while (op->env != NULL)
264	op = op->env;	354	op = op->env;
265	return op;	355	return op;
266	}	356	}
267		357
268	/*	358	/*
269	* Eneq(@csd.uu.se): Since we can have items buried in a character we need	359	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
270	* a better check. We basically keeping traversing up until we can't	360	* a better check. We basically keeping traversing up until we can't
271	* or find a player.	361	* or find a player.
272	*/	362	*/
273		363
		364	object *
274	object *is_player_inv (object *op) {	365	is_player_inv (object *op)
		366	{
275	for (;op!=NULL&&op->type!=PLAYER; op=op->env)	367	for (; op != NULL && op->type != PLAYER; op = op->env)
276	if (op->env==op)	368	if (op->env == op)
277	op->env = NULL;	369	op->env = NULL;
278	return op;	370	return op;
279	}	371	}
280		372
281	/*	373	/*
282	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	374	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
283	* Some error messages.	375	* Some error messages.
284	* The result of the dump is stored in the static global errmsg array.	376	* The result of the dump is stored in the static global errmsg array.
285	*/	377	*/
286		378
		379	void
287	void dump_object2(object *op) {	380	dump_object2 (object *op)
		381	{
		382	errmsg[0] = 0;
		383	return;
		384	//TODO//D#d#
		385	#if 0
288	char *cp;	386	char *cp;
		387
289	/* object *tmp;*/	388	/* object *tmp;*/
290		389
291	if(op->arch!=NULL) {	390	if (op->arch != NULL)
		391	{
292	strcat(errmsg,"arch ");	392	strcat (errmsg, "arch ");
293	strcat(errmsg,op->arch->name?op->arch->name:"(null)");	393	strcat (errmsg, op->arch->name ? op->arch->name : "(null)");
294	strcat(errmsg,"\n");	394	strcat (errmsg, "\n");
295	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)	395	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
296	strcat(errmsg,cp);	396	strcat (errmsg, cp);
297	#if 0	397	# if 0
298	/* Don't dump player diffs - they are too long, mostly meaningless, and	398	/* Don't dump player diffs - they are too long, mostly meaningless, and
299	* will overflow the buffer.	399	* will overflow the buffer.
300	* Changed so that we don't dump inventory either. This may	400	* Changed so that we don't dump inventory either. This may
301	* also overflow the buffer.	401	* also overflow the buffer.
302	*/	402	*/
303	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)	403	if (op->type != PLAYER && (cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
304	strcat(errmsg,cp);	404	strcat (errmsg, cp);
305	for (tmp=op->inv; tmp; tmp=tmp->below)	405	for (tmp = op->inv; tmp; tmp = tmp->below)
306	dump_object2(tmp);	406	dump_object2 (tmp);
		407	# endif
		408	strcat (errmsg, "end\n");
		409	}
		410	else
		411	{
		412	strcat (errmsg, "Object ");
		413	if (op->name == NULL)
		414	strcat (errmsg, "(null)");
		415	else
		416	strcat (errmsg, op->name);
		417	strcat (errmsg, "\n");
		418	# if 0
		419	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
		420	strcat (errmsg, cp);
		421	for (tmp = op->inv; tmp; tmp = tmp->below)
		422	dump_object2 (tmp);
		423	# endif
		424	strcat (errmsg, "end\n");
		425	}
307	#endif	426	#endif
308	strcat(errmsg,"end\n");
309	} else {
310	strcat(errmsg,"Object ");
311	if (op->name==NULL) strcat(errmsg, "(null)");
312	else strcat(errmsg,op->name);
313	strcat(errmsg,"\n");
314	#if 0
315	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
316	strcat(errmsg,cp);
317	for (tmp=op->inv; tmp; tmp=tmp->below)
318	dump_object2(tmp);
319	#endif
320	strcat(errmsg,"end\n");
321	}
322	}	427	}
323		428
324	/*	429	/*
325	* Dumps an object. Returns output in the static global errmsg array.	430	* Dumps an object. Returns output in the static global errmsg array.
326	*/	431	*/
327		432
		433	void
328	void dump_object(object *op) {	434	dump_object (object *op)
		435	{
329	if(op==NULL) {	436	if (op == NULL)
		437	{
330	strcpy(errmsg,"[NULL pointer]");	438	strcpy (errmsg, "[NULL pointer]");
331	return;	439	return;
332	}	440	}
333	errmsg[0]='\0';	441	errmsg[0] = '\0';
334	dump_object2(op);	442	dump_object2 (op);
335	}	443	}
336		444
337	/* GROS - Dumps an object. Return the result into a string */	445	void
338	/* Note that no checking is done for the validity of the target string, so */
339	/* you need to be sure that you allocated enough space for it. */
340	void dump_me(object *op, char *outstr)
341	{
342	char *cp;
343
344	if(op==NULL)
345	{
346	strcpy(outstr,"[NULL pointer]");
347	return;
348	}
349	outstr[0]='\0';
350
351	if(op->arch!=NULL)
352	{
353	strcat(outstr,"arch ");
354	strcat(outstr,op->arch->name?op->arch->name:"(null)");
355	strcat(outstr,"\n");
356	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
357	strcat(outstr,cp);
358	strcat(outstr,"end\n");
359	}
360	else
361	{
362	strcat(outstr,"Object ");
363	if (op->name==NULL)
364	strcat(outstr, "(null)");
365	else
366	strcat(outstr,op->name);
367	strcat(outstr,"\n");
368	strcat(outstr,"end\n");
369	}
370	}
371
372	/*
373	* This is really verbose...Can be triggered by the P key while in DM mode.
374	* All objects are dumped to stderr (or alternate logfile, if in server-mode)
375	*/
376
377	void dump_all_objects(void) {	446	dump_all_objects (void)
		447	{
378	object *op;	448	object *op;
		449
379	for(op=objects;op!=NULL;op=op->next) {	450	for (op = object::first; op != NULL; op = op->next)
		451	{
380	dump_object(op);	452	dump_object (op);
381	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);	453	fprintf (logfile, "Object %s\n", errmsg);
382	}	454	}
383	}	455	}
384		456
385	/*	457	/*
386	* get_nearest_part(multi-object, object 2) returns the part of the	458	* get_nearest_part(multi-object, object 2) returns the part of the
387	* multi-object 1 which is closest to the second object.	459	* multi-object 1 which is closest to the second object.
388	* If it's not a multi-object, it is returned.	460	* If it's not a multi-object, it is returned.
389	*/	461	*/
390		462
		463	object *
391	object *get_nearest_part(object *op, const object *pl) {	464	get_nearest_part (object *op, const object *pl)
		465	{
392	object *tmp,*closest;	466	object *tmp, *closest;
393	int last_dist,i;	467	int last_dist, i;
		468
394	if(op->more==NULL)	469	if (op->more == NULL)
395	return op;	470	return op;
396	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	471	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
397	if((i=distance(tmp,pl))<last_dist)	472	if ((i = distance (tmp, pl)) < last_dist)
398	closest=tmp,last_dist=i;	473	closest = tmp, last_dist = i;
399	return closest;	474	return closest;
400	}	475	}
401		476
402	/*	477	/*
403	* Returns the object which has the count-variable equal to the argument.	478	* Returns the object which has the count-variable equal to the argument.
404	*/	479	*/
405		480
		481	object *
406	object *find_object(tag_t i) {	482	find_object (tag_t i)
		483	{
407	object *op;	484	object *op;
		485
408	for(op=objects;op!=NULL;op=op->next)	486	for (op = object::first; op != NULL; op = op->next)
409	if(op->count==i)	487	if (op->count == i)
410	break;	488	break;
		489
411	return op;	490	return op;
412	}	491	}
413		492
414	/*	493	/*
415	* Returns the first object which has a name equal to the argument.	494	* Returns the first object which has a name equal to the argument.
416	* Used only by the patch command, but not all that useful.	495	* Used only by the patch command, but not all that useful.
417	* Enables features like "patch <name-of-other-player> food 999"	496	* Enables features like "patch <name-of-other-player> food 999"
418	*/	497	*/
419		498
		499	object *
420	object *find_object_name(const char *str) {	500	find_object_name (const char *str)
421	const char *name=add_string(str);	501	{
		502	shstr_cmp str_ (str);
422	object *op;	503	object *op;
		504
423	for(op=objects;op!=NULL;op=op->next)	505	for (op = object::first; op != NULL; op = op->next)
424	if(op->name==name)	506	if (op->name == str_)
425	break;	507	break;
426	free_string(name);	508
427	return op;	509	return op;
428	}	510	}
429		511
		512	void
430	void free_all_object_data(void) {	513	free_all_object_data ()
431	#ifdef MEMORY_DEBUG
432	object *op, *next;
433
434	for (op=free_objects; op!=NULL; ) {
435	next=op->next;
436	free(op);
437	nrofallocobjects--;
438	nroffreeobjects--;
439	op=next;
440	}
441	#endif
442	LOG(llevDebug,"%d allocated objects, %d free objects, STARMAX=%d\n",
443	nrofallocobjects, nroffreeobjects,STARTMAX);
444	}
445
446	/*
447	* Returns the object which this object marks as being the owner.
448	* A id-scheme is used to avoid pointing to objects which have been
449	* freed and are now reused. If this is detected, the owner is
450	* set to NULL, and NULL is returned.
451	* Changed 2004-02-12 - if the player is setting at the play again
452	* prompt, he is removed, and we don't want to treat him as an owner of
453	* anything, so check removed flag. I don't expect that this should break
454	* anything - once an object is removed, it is basically dead anyways.
455	*/
456
457	object *get_owner(object *op) {
458	if(op->owner==NULL)
459	return NULL;
460
461	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
462	op->owner->count==op->ownercount)
463	return op->owner;
464
465	op->owner=NULL;
466	op->ownercount=0;
467	return NULL;
468	}
469
470	void clear_owner(object *op)
471	{	514	{
472	if (!op) return;	515	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
473
474	if (op->owner && op->ownercount == op->owner->count)
475	op->owner->refcount--;
476
477	op->owner = NULL;
478	op->ownercount = 0;
479	}	516	}
480
481
482		517
483	/*	518	/*
484	* Sets the owner and sets the skill and exp pointers to owner's current	519	* Sets the owner and sets the skill and exp pointers to owner's current
485	* skill and experience objects.	520	* skill and experience objects.
486	*/	521	*/
487	void set_owner (object *op, object *owner)	522	void
		523	object::set_owner (object *owner)
488	{	524	{
489	if(owner==NULL||op==NULL)	525	if (!owner)
490	return;	526	return;
491		527
492	/* next line added to allow objects which own objects */	528	/* next line added to allow objects which own objects */
493	/* Add a check for ownercounts in here, as I got into an endless loop	529	/* Add a check for ownercounts in here, as I got into an endless loop
494	* with the fireball owning a poison cloud which then owned the	530	* with the fireball owning a poison cloud which then owned the
495	* fireball. I believe that was caused by one of the objects getting	531	* fireball. I believe that was caused by one of the objects getting
496	* freed and then another object replacing it. Since the ownercounts	532	* freed and then another object replacing it. Since the ownercounts
497	* didn't match, this check is valid and I believe that cause is valid.	533	* didn't match, this check is valid and I believe that cause is valid.
498	*/	534	*/
499	while (owner->owner && owner!=owner->owner &&	535	while (owner->owner)
500	owner->ownercount==owner->owner->count) owner=owner->owner;	536	owner = owner->owner;
501		537
502	/* IF the owner still has an owner, we did not resolve to a final owner.
503	* so lets not add to that.
504	*/
505	if (owner->owner) return;
506
507	op->owner=owner;	538	this->owner = owner;
508
509	op->ownercount=owner->count;
510	owner->refcount++;
511
512	}
513
514	/* Set the owner to clone's current owner and set the skill and experience
515	* objects to clone's objects (typically those objects that where the owner's
516	* current skill and experience objects at the time when clone's owner was
517	* set - not the owner's current skill and experience objects).
518	*
519	* Use this function if player created an object (e.g. fire bullet, swarm
520	* spell), and this object creates further objects whose kills should be
521	* accounted for the player's original skill, even if player has changed
522	* skills meanwhile.
523	*/
524	void copy_owner (object *op, object *clone)
525	{
526	object *owner = get_owner (clone);
527	if (owner == NULL) {
528	/* players don't have owners - they own themselves. Update
529	* as appropriate.
530	*/
531	if (clone->type == PLAYER) owner=clone;
532	else return;
533	}
534	set_owner(op, owner);
535
536	}
537
538	/*
539	* Resets vital variables in an object
540	*/
541
542	void reset_object(object *op) {
543
544	op->name = NULL;
545	op->name_pl = NULL;
546	op->title = NULL;
547	op->race = NULL;
548	op->slaying = NULL;
549	op->skill = NULL;
550	op->msg = NULL;
551	op->materialname = NULL;
552	op->lore = NULL;
553	op->current_weapon_script = NULL;
554	clear_object(op);
555	}	539	}
556		540
557	/* Zero the key_values on op, decrementing the shared-string	541	/* Zero the key_values on op, decrementing the shared-string
558	* refcounts and freeing the links.	542	* refcounts and freeing the links.
559	*/	543	*/
		544	static void
560	static void free_key_values(object * op) {	545	free_key_values (object *op)
561	key_value * i;	546	{
562	key_value * next = NULL;	547	for (key_value *i = op->key_values; i != 0;)
563		548	{
564	if (op->key_values == NULL) return;	549	key_value *next = i->next;
		550	delete i;
		551
		552	i = next;
565		553	}
566	for (i = op->key_values; i != NULL; i = next) {	554
567	/* Store next *first*. */
568	next = i->next;
569
570	if (i->key) FREE_AND_CLEAR_STR(i->key);
571	if (i->value) FREE_AND_CLEAR_STR(i->value);
572	i->next = NULL;
573	free(i);
574	}
575
576	op->key_values = NULL;	555	op->key_values = 0;
577	}	556	}
578		557
		558	void object::clear ()
		559	{
		560	attachable_base::clear ();
579		561
580	/*
581	* clear_object() frees everything allocated by an object, and also
582	* clears all variables and flags to default settings.
583	*/
584
585	void clear_object(object *op) {
586
587	if (object_free_callback)
588	object_free_callback (op);
589
590	event *evt;
591	event *evt2;
592
593	/* redo this to be simpler/more efficient. Was also seeing
594	* crashes in the old code. Move this to the top - am
595	* seeing periodic crashes in this code, and would like to have
596	* as much info available as possible (eg, object name).
597	*/
598	for (evt = op->events; evt; evt=evt2) {
599	evt2 = evt->next;
600
601	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
602	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
603	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
604
605	free(evt);
606	}
607	op->events = NULL;
608
609	free_key_values(op);	562	free_key_values (this);
610		563
611	/* the memset will clear all these values for us, but we need	564	owner = 0;
612	* to reduce the refcount on them.	565	name = 0;
613	*/	566	name_pl = 0;
614	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);	567	title = 0;
615	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);	568	race = 0;
616	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);	569	slaying = 0;
617	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);	570	skill = 0;
618	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);	571	msg = 0;
619	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);	572	lore = 0;
620	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);	573	custom_name = 0;
621	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);	574	materialname = 0;
622	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);	575	contr = 0;
		576	below = 0;
		577	above = 0;
		578	inv = 0;
		579	container = 0;
		580	env = 0;
		581	more = 0;
		582	head = 0;
		583	map = 0;
		584	active_next = 0;
		585	active_prev = 0;
623		586
		587	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
624		588
625	memset((void*)op, 0, sizeof (object_special));
626	/* Below here, we clear things that are not done by the memset,
627	* or set default values that are not zero.
628	*/
629	/* This is more or less true */
630	SET_FLAG(op, FLAG_REMOVED);	589	SET_FLAG (this, FLAG_REMOVED);
631		590
632
633	op->contr = NULL;
634	op->below=NULL;
635	op->above=NULL;
636	op->inv=NULL;
637	op->events=NULL;
638	op->container=NULL;
639	op->env=NULL;
640	op->more=NULL;
641	op->head=NULL;
642	op->map=NULL;
643	op->refcount=0;
644	op->active_next = NULL;
645	op->active_prev = NULL;
646	/* What is not cleared is next, prev, and count */	591	/* What is not cleared is next, prev, and count */
647		592
648	op->expmul=1.0;	593	expmul = 1.0;
649	op->face = blank_face;	594	face = blank_face;
650	op->attacked_by_count = (tag_t) -1;	595
651	if (settings.casting_time)	596	if (settings.casting_time)
652	op->casting_time = -1;	597	casting_time = -1;
		598	}
653		599
		600	void object::clone (object *destination)
		601	{
		602	*(object_copy *)destination = *this;
		603	*(object_pod *)destination = *this;
		604
		605	if (self || cb)
		606	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
654	}	607	}
655		608
656	/*	609	/*
657	* copy object first frees everything allocated by the second object,	610	* copy object first frees everything allocated by the second object,
658	* and then copies the contends of the first object into the second	611	* and then copies the contends of the first object into the second
659	* object, allocating what needs to be allocated. Basically, any	612	* object, allocating what needs to be allocated. Basically, any
660	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	613	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
661	* if the first object is freed, the pointers in the new object	614	* if the first object is freed, the pointers in the new object
662	* will point at garbage.	615	* will point at garbage.
663	*/	616	*/
664		617	void
665	void copy_object(object *op2, object *op) {	618	copy_object (object *op2, object *op)
666	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);	619	{
667	event *evt, *evt2, *evt_new;	620	bool is_freed = QUERY_FLAG (op, FLAG_FREED);
		621	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);
668		622
669	if (object_free_callback)	623	op2->clone (op);
670	object_free_callback (op);
671		624
672	// callback registries and self are empty for copied objects	625	if (is_freed)
673	// this ought to change in the future	626	SET_FLAG (op, FLAG_FREED);
		627	if (is_removed)
		628	SET_FLAG (op, FLAG_REMOVED);
674		629
675	/* Decrement the refcounts, but don't bother zeroing the fields;	630	if (op2->speed < 0)
676	they'll be overwritten by memcpy. */
677	if(op->name!=NULL) free_string(op->name);
678	if(op->name_pl!=NULL) free_string(op->name_pl);
679	if(op->title!=NULL) free_string(op->title);
680	if(op->race!=NULL) free_string(op->race);
681	if(op->slaying!=NULL) free_string(op->slaying);
682	if(op->skill!=NULL) free_string(op->skill);
683	if(op->msg!=NULL) free_string(op->msg);
684	if(op->lore!=NULL) free_string(op->lore);
685	if(op->materialname != NULL) free_string(op->materialname);
686	if(op->custom_name != NULL) free_string(op->custom_name);
687
688	/* Basically, same code as from clear_object() */
689	for (evt = op->events; evt; evt=evt2) {
690	evt2 = evt->next;
691
692	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
693	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
694	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
695
696	free(evt);
697	}
698	op->events = NULL;
699
700	free_key_values(op);
701
702	*(object_special *)op = *(object_special *)op2;
703
704	if(is_freed) SET_FLAG(op,FLAG_FREED);
705	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
706	if(op->name!=NULL) add_refcount(op->name);
707	if(op->name_pl!=NULL) add_refcount(op->name_pl);
708	if(op->title!=NULL) add_refcount(op->title);
709	if(op->race!=NULL) add_refcount(op->race);
710	if(op->slaying!=NULL) add_refcount(op->slaying);
711	if(op->skill!=NULL) add_refcount(op->skill);
712	if(op->lore!=NULL) add_refcount(op->lore);
713	if(op->msg!=NULL) add_refcount(op->msg);
714	if(op->custom_name!=NULL) add_refcount(op->custom_name);
715	if (op->materialname != NULL) add_refcount(op->materialname);
716
717	if((op2->speed<0) && !editor)
718	op->speed_left=op2->speed_left-RANDOM()%200/100.0;	631	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
719		632
720	/* Copy over event information */
721	evt2 = NULL;
722	for (evt = op2->events; evt; evt=evt->next) {
723	evt_new = (event *) malloc(sizeof(event));
724	memcpy(evt_new, evt, sizeof(event));
725	if (evt_new->hook) add_refcount(evt_new->hook);
726	if (evt_new->plugin) add_refcount(evt_new->plugin);
727	if (evt_new->options) add_refcount(evt_new->options);
728	evt_new->next = NULL;
729
730	/* Try to be a little clever here, and store away the
731	* last event we copied, so that its simpler to update the
732	* pointer.
733	*/
734	if (evt2)
735	evt2->next = evt_new;
736	else
737	op->events = evt_new;
738
739	evt2 = evt_new;
740	}
741	/* Copy over key_values, if any. */	633	/* Copy over key_values, if any. */
742	if (op2->key_values != NULL) {	634	if (op2->key_values)
743	key_value * tail = NULL;	635	{
		636	key_value *tail = 0;
744	key_value * i;	637	key_value *i;
745		638
746	op->key_values = NULL;	639	op->key_values = 0;
747		640
748	for (i = op2->key_values; i != NULL; i = i->next) {	641	for (i = op2->key_values; i; i = i->next)
749	key_value * new_link = (key_value *) malloc(sizeof(key_value));	642	{
		643	key_value *new_link = new key_value;
750		644
751	new_link->next = NULL;	645	new_link->next = 0;
752	new_link->key = add_refcount(i->key);	646	new_link->key = i->key;
753	if (i->value)	647	new_link->value = i->value;
754	new_link->value = add_refcount(i->value);
755	else
756	new_link->value = NULL;
757		648
758	/* Try and be clever here, too. */	649	/* Try and be clever here, too. */
759	if (op->key_values == NULL) {	650	if (!op->key_values)
		651	{
760	op->key_values = new_link;	652	op->key_values = new_link;
761	tail = new_link;	653	tail = new_link;
762	} else {	654	}
763	tail->next = new_link;	655	else
764	tail = new_link;	656	{
		657	tail->next = new_link;
		658	tail = new_link;
		659	}
		660	}
765	}	661	}
766	}
767	}
768		662
769	update_ob_speed(op);	663	update_ob_speed (op);
770	}
771
772	/*
773	* expand_objects() allocates more objects for the list of unused objects.
774	* It is called from get_object() if the unused list is empty.
775	*/
776
777	void expand_objects(void) {
778	int i;
779	object *obj;
780	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));
781
782	if(obj==NULL)
783	fatal(OUT_OF_MEMORY);
784	free_objects=obj;
785	obj[0].prev=NULL;
786	obj[0].next= &obj[1],
787	SET_FLAG(&(obj[0]), FLAG_REMOVED);
788	SET_FLAG(&(obj[0]), FLAG_FREED);
789
790	for(i=1;i<OBJ_EXPAND-1;i++) {
791	obj[i].next= &obj[i+1],
792	obj[i].prev= &obj[i-1],
793	SET_FLAG(&(obj[i]), FLAG_REMOVED);
794	SET_FLAG(&(obj[i]), FLAG_FREED);
795	}
796	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
797	obj[OBJ_EXPAND-1].next=NULL,
798	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
799	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
800
801	nrofallocobjects += OBJ_EXPAND;
802	nroffreeobjects += OBJ_EXPAND;
803	}
804
805	/*
806	* get_object() grabs an object from the list of unused objects, makes
807	* sure it is initialised, and returns it.
808	* If there are no free objects, expand_objects() is called to get more.
809	*/
810
811	object *get_object(void) {
812	object *op;
813
814	if(free_objects==NULL) {
815	expand_objects();
816	}
817	op=free_objects;
818	#ifdef MEMORY_DEBUG
819	/* The idea is hopefully by doing a realloc, the memory
820	* debugging program will now use the current stack trace to
821	* report leaks.
822	*/
823	op = realloc(op, sizeof(object));
824	SET_FLAG(op, FLAG_REMOVED);
825	SET_FLAG(op, FLAG_FREED);
826	#endif
827
828	if(!QUERY_FLAG(op,FLAG_FREED)) {
829	LOG(llevError,"Fatal: Getting busy object.\n");
830	}
831	free_objects=op->next;
832	if(free_objects!=NULL)
833	free_objects->prev=NULL;
834	op->count= ++ob_count;
835	op->name=NULL;
836	op->name_pl=NULL;
837	op->title=NULL;
838	op->race=NULL;
839	op->slaying=NULL;
840	op->skill = NULL;
841	op->lore=NULL;
842	op->msg=NULL;
843	op->materialname=NULL;
844	op->next=objects;
845	op->prev=NULL;
846	op->active_next = NULL;
847	op->active_prev = NULL;
848	if(objects!=NULL)
849	objects->prev=op;
850	objects=op;
851	clear_object(op);
852	SET_FLAG(op,FLAG_REMOVED);
853	nroffreeobjects--;
854	return op;
855	}	664	}
856		665
857	/*	666	/*
858	* If an object with the IS_TURNABLE() flag needs to be turned due	667	* If an object with the IS_TURNABLE() flag needs to be turned due
859	* to the closest player being on the other side, this function can	668	* to the closest player being on the other side, this function can
860	* be called to update the face variable, _and_ how it looks on the map.	669	* be called to update the face variable, _and_ how it looks on the map.
861	*/	670	*/
862		671
		672	void
863	void update_turn_face(object *op) {	673	update_turn_face (object *op)
		674	{
864	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	675	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
865	return;	676	return;
866	SET_ANIMATION(op, op->direction);	677	SET_ANIMATION (op, op->direction);
867	update_object(op,UP_OBJ_FACE);	678	update_object (op, UP_OBJ_FACE);
868	}	679	}
869		680
870	/*	681	/*
871	* Updates the speed of an object. If the speed changes from 0 to another	682	* Updates the speed of an object. If the speed changes from 0 to another
872	* value, or vice versa, then add/remove the object from the active list.	683	* value, or vice versa, then add/remove the object from the active list.
873	* This function needs to be called whenever the speed of an object changes.	684	* This function needs to be called whenever the speed of an object changes.
874	*/	685	*/
875		686	void
876	void update_ob_speed(object *op) {	687	update_ob_speed (object *op)
		688	{
877	extern int arch_init;	689	extern int arch_init;
878		690
879	/* No reason putting the archetypes objects on the speed list,	691	/* No reason putting the archetypes objects on the speed list,
880	* since they never really need to be updated.	692	* since they never really need to be updated.
881	*/	693	*/
882		694
883	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	695	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		696	{
884	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	697	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
885	#ifdef MANY_CORES	698	#ifdef MANY_CORES
886	abort();	699	abort ();
887	#else	700	#else
888	op->speed = 0;	701	op->speed = 0;
889	#endif	702	#endif
890	}	703	}
		704
891	if (arch_init) {	705	if (arch_init)
892	return;
893	}
894	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
895	/* If already on active list, don't do anything */
896	if (op->active_next || op->active_prev || op==active_objects)
897	return;	706	return;
898		707
		708	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		709	{
		710	/* If already on active list, don't do anything */
		711	if (op->active_next || op->active_prev || op == active_objects)
		712	return;
		713
899	/* process_events() expects us to insert the object at the beginning	714	/* process_events() expects us to insert the object at the beginning
900	* of the list. */	715	* of the list. */
901	op->active_next = active_objects;	716	op->active_next = active_objects;
		717
902	if (op->active_next!=NULL)	718	if (op->active_next != NULL)
903	op->active_next->active_prev = op;	719	op->active_next->active_prev = op;
		720
904	active_objects = op;	721	active_objects = op;
		722	}
		723	else
905	}	724	{
906	else {
907	/* If not on the active list, nothing needs to be done */	725	/* If not on the active list, nothing needs to be done */
908	if (!op->active_next && !op->active_prev && op!=active_objects)	726	if (!op->active_next && !op->active_prev && op != active_objects)
909	return;	727	return;
910		728
911	if (op->active_prev==NULL) {	729	if (op->active_prev == NULL)
		730	{
912	active_objects = op->active_next;	731	active_objects = op->active_next;
		732
913	if (op->active_next!=NULL)	733	if (op->active_next != NULL)
914	op->active_next->active_prev = NULL;	734	op->active_next->active_prev = NULL;
915	}	735	}
916	else {	736	else
		737	{
917	op->active_prev->active_next = op->active_next;	738	op->active_prev->active_next = op->active_next;
		739
918	if (op->active_next)	740	if (op->active_next)
919	op->active_next->active_prev = op->active_prev;	741	op->active_next->active_prev = op->active_prev;
920	}	742	}
		743
921	op->active_next = NULL;	744	op->active_next = NULL;
922	op->active_prev = NULL;	745	op->active_prev = NULL;
923	}	746	}
924	}	747	}
925		748
926	/* This function removes object 'op' from the list of active	749	/* This function removes object 'op' from the list of active
927	* objects.	750	* objects.
…		…
929	* reference maps where you don't want an object that isn't	752	* reference maps where you don't want an object that isn't
930	* in play chewing up cpu time getting processed.	753	* in play chewing up cpu time getting processed.
931	* The reverse of this is to call update_ob_speed, which	754	* The reverse of this is to call update_ob_speed, which
932	* will do the right thing based on the speed of the object.	755	* will do the right thing based on the speed of the object.
933	*/	756	*/
		757	void
934	void remove_from_active_list(object *op)	758	remove_from_active_list (object *op)
935	{	759	{
936	/* If not on the active list, nothing needs to be done */	760	/* If not on the active list, nothing needs to be done */
937	if (!op->active_next && !op->active_prev && op!=active_objects)	761	if (!op->active_next && !op->active_prev && op != active_objects)
938	return;	762	return;
939		763
940	if (op->active_prev==NULL) {	764	if (op->active_prev == NULL)
		765	{
941	active_objects = op->active_next;	766	active_objects = op->active_next;
942	if (op->active_next!=NULL)	767	if (op->active_next != NULL)
943	op->active_next->active_prev = NULL;	768	op->active_next->active_prev = NULL;
		769	}
		770	else
944	}	771	{
945	else {
946	op->active_prev->active_next = op->active_next;	772	op->active_prev->active_next = op->active_next;
947	if (op->active_next)	773	if (op->active_next)
948	op->active_next->active_prev = op->active_prev;	774	op->active_next->active_prev = op->active_prev;
949	}	775	}
950	op->active_next = NULL;	776	op->active_next = NULL;
951	op->active_prev = NULL;	777	op->active_prev = NULL;
952	}	778	}
953		779
954	/*	780	/*
955	* update_object() updates the array which represents the map.	781	* update_object() updates the array which represents the map.
956	* It takes into account invisible objects (and represent squares covered	782	* It takes into account invisible objects (and represent squares covered
…		…
971	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	797	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
972	* as that is easier than trying to look at what may have changed.	798	* as that is easier than trying to look at what may have changed.
973	* UP_OBJ_FACE: only the objects face has changed.	799	* UP_OBJ_FACE: only the objects face has changed.
974	*/	800	*/
975		801
		802	void
976	void update_object(object *op, int action) {	803	update_object (object *op, int action)
		804	{
977	int update_now=0, flags;	805	int update_now = 0, flags;
978	MoveType move_on, move_off, move_block, move_slow;	806	MoveType move_on, move_off, move_block, move_slow;
979		807
980	if (op == NULL) {	808	if (op == NULL)
		809	{
981	/* this should never happen */	810	/* this should never happen */
982	LOG(llevDebug,"update_object() called for NULL object.\n");	811	LOG (llevDebug, "update_object() called for NULL object.\n");
983	return;	812	return;
984	}
985		813	}
		814
986	if(op->env!=NULL) {	815	if (op->env != NULL)
		816	{
987	/* Animation is currently handled by client, so nothing	817	/* Animation is currently handled by client, so nothing
988	* to do in this case.	818	* to do in this case.
989	*/	819	*/
990	return;	820	return;
991	}	821	}
992		822
993	/* If the map is saving, don't do anything as everything is	823	/* If the map is saving, don't do anything as everything is
994	* going to get freed anyways.	824	* going to get freed anyways.
995	*/	825	*/
996	if (!op->map || op->map->in_memory == MAP_SAVING) return;	826	if (!op->map || op->map->in_memory == MAP_SAVING)
997		827	return;
		828
998	/* make sure the object is within map boundaries */	829	/* make sure the object is within map boundaries */
999	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	830	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))
1000	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	831	{
1001	LOG(llevError,"update_object() called for object out of map!\n");	832	LOG (llevError, "update_object() called for object out of map!\n");
1002	#ifdef MANY_CORES	833	#ifdef MANY_CORES
1003	abort();	834	abort ();
1004	#endif	835	#endif
1005	return;	836	return;
1006	}
1007		837	}
		838
1008	flags = GET_MAP_FLAGS(op->map, op->x, op->y);	839	flags = GET_MAP_FLAGS (op->map, op->x, op->y);
1009	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);	840	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
1010	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	841	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1011	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	842	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1012	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	843	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1013	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);	844	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
1014		845
1015	if (action == UP_OBJ_INSERT) {	846	if (action == UP_OBJ_INSERT)
		847	{
1016	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	848	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))
1017	update_now=1;	849	update_now = 1;
1018		850
1019	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	851	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))
1020	update_now=1;	852	update_now = 1;
1021		853
1022	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	854	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))
1023	update_now=1;	855	update_now = 1;
1024		856
1025	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	857	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
1026	update_now=1;	858	update_now = 1;
1027		859
		860	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
		861	update_now = 1;
		862
1028	if ((move_on | op->move_on) != move_on) update_now=1;	863	if ((move_on | op->move_on) != move_on)
		864	update_now = 1;
		865
1029	if ((move_off | op->move_off) != move_off) update_now=1;	866	if ((move_off | op->move_off) != move_off)
		867	update_now = 1;
		868
1030	/* This isn't perfect, but I don't expect a lot of objects to	869	/* This isn't perfect, but I don't expect a lot of objects to
1031	* to have move_allow right now.	870	* to have move_allow right now.
1032	*/	871	*/
1033	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	872	if (((move_block | op->move_block) & ~op->move_allow) != move_block)
1034	update_now=1;	873	update_now = 1;
		874
1035	if ((move_slow | op->move_slow) != move_slow) update_now=1;	875	if ((move_slow | op->move_slow) != move_slow)
		876	update_now = 1;
1036	}	877	}
1037	/* if the object is being removed, we can't make intelligent	878	/* if the object is being removed, we can't make intelligent
1038	* decisions, because remove_ob can't really pass the object	879	* decisions, because remove_ob can't really pass the object
1039	* that is being removed.	880	* that is being removed.
1040	*/	881	*/
1041	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	882	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1042	update_now=1;	883	update_now = 1;
1043	} else if (action == UP_OBJ_FACE) {	884	else if (action == UP_OBJ_FACE)
1044	/* Nothing to do for that case */	885	/* Nothing to do for that case */ ;
1045	}
1046	else {	886	else
1047	LOG(llevError,"update_object called with invalid action: %d\n", action);	887	LOG (llevError, "update_object called with invalid action: %d\n", action);
1048	}
1049		888
1050	if (update_now) {	889	if (update_now)
		890	{
1051	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);	891	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1052	update_position(op->map, op->x, op->y);	892	update_position (op->map, op->x, op->y);
1053	}	893	}
1054		894
1055	if(op->more!=NULL)	895	if (op->more != NULL)
1056	update_object(op->more, action);	896	update_object (op->more, action);
1057	}	897	}
1058		898
		899	object::vector object::mortals;
		900	object::vector object::objects; // not yet used
		901	object *object::first;
		902
		903	void object::free_mortals ()
		904	{
		905	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
		906	if ((*i)->refcnt)
		907	++i; // further delay freeing
		908	else
		909	{
		910	delete *i;
		911	mortals.erase (i);
		912	}
		913
		914	static int lastmortals = 0;//D
		915
		916	if (mortals.size() != lastmortals)//D
		917	{
		918	lastmortals = mortals.size ();//D
		919	LOG (llevDebug, "%d objects in mortal queue\n", lastmortals);//D
		920	}
		921	}
		922
		923	object::object ()
		924	{
		925	SET_FLAG (this, FLAG_REMOVED);
		926
		927	expmul = 1.0;
		928	face = blank_face;
		929	}
		930
		931	object::~object ()
		932	{
		933	free_key_values (this);
		934	}
		935
		936	void object::link ()
		937	{
		938	count = ++ob_count;
		939	uuid = gen_uuid ();
		940
		941	prev = 0;
		942	next = object::first;
		943
		944	if (object::first)
		945	object::first->prev = this;
		946
		947	object::first = this;
		948	}
		949
		950	void object::unlink ()
		951	{
		952	if (this == object::first)
		953	object::first = next;
		954
		955	/* Remove this object from the list of used objects */
		956	if (prev) prev->next = next;
		957	if (next) next->prev = prev;
		958
		959	prev = 0;
		960	next = 0;
		961	}
		962
		963	object *object::create ()
		964	{
		965	object *op = new object;
		966	op->link ();
		967	return op;
		968	}
1059		969
1060	/*	970	/*
1061	* free_object() frees everything allocated by an object, removes	971	* free_object() frees everything allocated by an object, removes
1062	* it from the list of used objects, and puts it on the list of	972	* it from the list of used objects, and puts it on the list of
1063	* free objects. The IS_FREED() flag is set in the object.	973	* free objects. The IS_FREED() flag is set in the object.
…		…
1065	* this function to succeed.	975	* this function to succeed.
1066	*	976	*
1067	* If free_inventory is set, free inventory as well. Else drop items in	977	* If free_inventory is set, free inventory as well. Else drop items in
1068	* inventory to the ground.	978	* inventory to the ground.
1069	*/	979	*/
		980	void object::free (bool free_inventory)
		981	{
		982	if (QUERY_FLAG (this, FLAG_FREED))
		983	return;
1070		984
1071	void free_object(object *ob) {	985	if (QUERY_FLAG (this, FLAG_FRIENDLY))
1072	free_object2(ob, 0);	986	remove_friendly_object (this);
1073	}
1074	void free_object2(object *ob, int free_inventory) {
1075	object *tmp,*op;
1076		987
1077	if (object_free_callback)
1078	object_free_callback (ob);
1079
1080	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	988	if (!QUERY_FLAG (this, FLAG_REMOVED))
1081	LOG(llevDebug,"Free object called with non removed object\n");	989	remove_ob (this);
1082	dump_object(ob);	990
1083	#ifdef MANY_CORES	991	SET_FLAG (this, FLAG_FREED);
1084	abort();	992
1085	#endif	993	if (more)
1086	}	994	{
1087	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	995	more->free (free_inventory);
1088	LOG(llevMonster,"Warning: tried to free friendly object.\n");	996	more = 0;
1089	remove_friendly_object(ob);	997	}
		998
		999	if (inv)
1090	}	1000	{
1091	if(QUERY_FLAG(ob,FLAG_FREED)) {
1092	dump_object(ob);
1093	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);
1094	return;
1095	}
1096	if(ob->more!=NULL) {
1097	free_object2(ob->more, free_inventory);
1098	ob->more=NULL;
1099	}
1100	if (ob->inv) {
1101	/* Only if the space blocks everything do we not process -	1001	/* Only if the space blocks everything do we not process -
1102	* if some form of movemnt is allowed, let objects	1002	* if some form of movement is allowed, let objects
1103	* drop on that space.	1003	* drop on that space.
1104	*/	1004	*/
1105	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	1005	if (free_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
1106	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	1006	{
1107	{	1007	object *op = inv;
1108	op=ob->inv;	1008
1109	while(op!=NULL) {	1009	while (op)
1110	tmp=op->below;	1010	{
1111	remove_ob(op);	1011	object *tmp = op->below;
1112	free_object2(op, free_inventory);	1012	op->free (free_inventory);
1113	op=tmp;	1013	op = tmp;
		1014	}
		1015	}
		1016	else
		1017	{ /* Put objects in inventory onto this space */
		1018	object *op = inv;
		1019
		1020	while (op)
		1021	{
		1022	object *tmp = op->below;
		1023
		1024	remove_ob (op);
		1025
		1026	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
		1027	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
		1028	free_object (op);
		1029	else
		1030	{
		1031	op->x = x;
		1032	op->y = y;
		1033	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
		1034	}
		1035
		1036	op = tmp;
		1037	}
		1038	}
1114	}	1039	}
1115	}	1040
1116	else { /* Put objects in inventory onto this space */	1041	// clear those pointers that likely might have circular references to us
1117	op=ob->inv;	1042	owner = 0;
1118	while(op!=NULL) {	1043	enemy = 0;
1119	tmp=op->below;	1044	attacked_by = 0;
1120	remove_ob(op);	1045
1121	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||
1122	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))
1123	free_object(op);
1124	else {
1125	op->x=ob->x;
1126	op->y=ob->y;
1127	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */
1128	}
1129	op=tmp;
1130	}
1131	}
1132	}
1133	/* Remove object from the active list */	1046	/* Remove object from the active list */
1134	ob->speed = 0;	1047	speed = 0;
1135	update_ob_speed(ob);	1048	update_ob_speed (this);
1136		1049
1137	SET_FLAG(ob, FLAG_FREED);	1050	unlink ();
1138	ob->count = 0;
1139		1051
1140	/* Remove this object from the list of used objects */	1052	mortals.push_back (this);
1141	if(ob->prev==NULL) {
1142	objects=ob->next;
1143	if(objects!=NULL)
1144	objects->prev=NULL;
1145	}
1146	else {
1147	ob->prev->next=ob->next;
1148	if(ob->next!=NULL)
1149	ob->next->prev=ob->prev;
1150	}
1151
1152	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1153	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1154	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1155	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1156	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1157	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1158	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1159	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1160	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1161
1162
1163	/* Why aren't events freed? */
1164	free_key_values(ob);
1165
1166	#if 0 /* MEMORY_DEBUG*/
1167	/* This is a nice idea. Unfortunately, a lot of the code in crossfire
1168	* presumes the freed_object will stick around for at least a little
1169	* bit
1170	*/
1171	/* this is necessary so that memory debugging programs will
1172	* be able to accurately report source of malloc. If we recycle
1173	* objects, then some other area may be doing the get_object
1174	* and not freeing it, but the original one that malloc'd the
1175	* object will get the blame.
1176	*/
1177	free(ob);
1178	#else
1179
1180	/* Now link it with the free_objects list: */
1181	ob->prev=NULL;
1182	ob->next=free_objects;
1183	if(free_objects!=NULL)
1184	free_objects->prev=ob;
1185	free_objects=ob;
1186	nroffreeobjects++;
1187	#endif
1188	}
1189
1190	/*
1191	* count_free() returns the number of objects on the list of free objects.
1192	*/
1193
1194	int count_free(void) {
1195	int i=0;
1196	object *tmp=free_objects;
1197	while(tmp!=NULL)
1198	tmp=tmp->next, i++;
1199	return i;
1200	}
1201
1202	/*
1203	* count_used() returns the number of objects on the list of used objects.
1204	*/
1205
1206	int count_used(void) {
1207	int i=0;
1208	object *tmp=objects;
1209	while(tmp!=NULL)
1210	tmp=tmp->next, i++;
1211	return i;
1212	}
1213
1214	/*
1215	* count_active() returns the number of objects on the list of active objects.
1216	*/
1217
1218	int count_active(void) {
1219	int i=0;
1220	object *tmp=active_objects;
1221	while(tmp!=NULL)
1222	tmp=tmp->active_next, i++;
1223	return i;
1224	}	1053	}
1225		1054
1226	/*	1055	/*
1227	* sub_weight() recursively (outwards) subtracts a number from the	1056	* sub_weight() recursively (outwards) subtracts a number from the
1228	* weight of an object (and what is carried by it's environment(s)).	1057	* weight of an object (and what is carried by it's environment(s)).
1229	*/	1058	*/
1230		1059
		1060	void
1231	void sub_weight (object *op, signed long weight) {	1061	sub_weight (object *op, signed long weight)
		1062	{
1232	while (op != NULL) {	1063	while (op != NULL)
		1064	{
1233	if (op->type == CONTAINER) {	1065	if (op->type == CONTAINER)
1234	weight=(signed long)(weight*(100-op->stats.Str)/100);	1066	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1235	}	1067
1236	op->carrying-=weight;	1068	op->carrying -= weight;
1237	op = op->env;	1069	op = op->env;
1238	}	1070	}
1239	}	1071	}
1240		1072
1241	/* remove_ob(op):	1073	/* remove_ob(op):
1242	* This function removes the object op from the linked list of objects	1074	* This function removes the object op from the linked list of objects
1243	* which it is currently tied to. When this function is done, the	1075	* which it is currently tied to. When this function is done, the
…		…
1245	* environment, the x and y coordinates will be updated to	1077	* environment, the x and y coordinates will be updated to
1246	* the previous environment.	1078	* the previous environment.
1247	* Beware: This function is called from the editor as well!	1079	* Beware: This function is called from the editor as well!
1248	*/	1080	*/
1249		1081
		1082	void
1250	void remove_ob(object *op) {	1083	remove_ob (object *op)
		1084	{
1251	object *tmp,*last=NULL;	1085	object *tmp, *last = 0;
1252	object *otmp;	1086	object *otmp;
1253	tag_t tag;	1087
1254	int check_walk_off;	1088	int check_walk_off;
1255	mapstruct *m;	1089	mapstruct *m;
		1090
1256	sint16 x,y;	1091	sint16 x, y;
1257
1258		1092
1259	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1093	if (QUERY_FLAG (op, FLAG_REMOVED))
1260	dump_object(op);	1094	return;
1261	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1262		1095
1263	/* Changed it to always dump core in this case. As has been learned
1264	* in the past, trying to recover from errors almost always
1265	* make things worse, and this is a real error here - something
1266	* that should not happen.
1267	* Yes, if this was a mission critical app, trying to do something
1268	* to recover may make sense, but that is because failure of the app
1269	* may have other disastrous problems. Cf runs out of a script
1270	* so is easily enough restarted without any real problems.
1271	* MSW 2001-07-01
1272	*/
1273	abort();
1274	}
1275	if(op->more!=NULL)
1276	remove_ob(op->more);
1277
1278	SET_FLAG(op, FLAG_REMOVED);	1096	SET_FLAG (op, FLAG_REMOVED);
1279		1097
		1098	if (op->more != NULL)
		1099	remove_ob (op->more);
		1100
1280	/*	1101	/*
1281	* In this case, the object to be removed is in someones	1102	* In this case, the object to be removed is in someones
1282	* inventory.	1103	* inventory.
1283	*/	1104	*/
1284	if(op->env!=NULL) {	1105	if (op->env != NULL)
		1106	{
1285	if(op->nrof)	1107	if (op->nrof)
1286	sub_weight(op->env, op->weight*op->nrof);	1108	sub_weight (op->env, op->weight * op->nrof);
1287	else	1109	else
1288	sub_weight(op->env, op->weight+op->carrying);	1110	sub_weight (op->env, op->weight + op->carrying);
1289		1111
1290	/* NO_FIX_PLAYER is set when a great many changes are being	1112	/* NO_FIX_PLAYER is set when a great many changes are being
1291	* made to players inventory. If set, avoiding the call	1113	* made to players inventory. If set, avoiding the call
1292	* to save cpu time.	1114	* to save cpu time.
1293	*/	1115	*/
1294	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1116	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1295	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))
1296	fix_player(otmp);	1117	fix_player (otmp);
1297		1118
1298	if(op->above!=NULL)	1119	if (op->above != NULL)
1299	op->above->below=op->below;	1120	op->above->below = op->below;
1300	else	1121	else
1301	op->env->inv=op->below;	1122	op->env->inv = op->below;
1302		1123
1303	if(op->below!=NULL)	1124	if (op->below != NULL)
1304	op->below->above=op->above;	1125	op->below->above = op->above;
1305		1126
1306	/* we set up values so that it could be inserted into	1127	/* we set up values so that it could be inserted into
1307	* the map, but we don't actually do that - it is up	1128	* the map, but we don't actually do that - it is up
1308	* to the caller to decide what we want to do.	1129	* to the caller to decide what we want to do.
1309	*/	1130	*/
1310	op->x=op->env->x,op->y=op->env->y;	1131	op->x = op->env->x, op->y = op->env->y;
1311	op->ox=op->x,op->oy=op->y;
1312	op->map=op->env->map;	1132	op->map = op->env->map;
1313	op->above=NULL,op->below=NULL;	1133	op->above = NULL, op->below = NULL;
1314	op->env=NULL;	1134	op->env = NULL;
1315	return;	1135	}
		1136	else if (op->map)
1316	}	1137	{
1317
1318	/* If we get here, we are removing it from a map */
1319	if (op->map == NULL) return;
1320
1321	x = op->x;	1138	x = op->x;
1322	y = op->y;	1139	y = op->y;
1323	m = get_map_from_coord(op->map, &x, &y);	1140	m = get_map_from_coord (op->map, &x, &y);
1324		1141
1325	if (!m) {	1142	if (!m)
		1143	{
1326	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1144	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1327	op->map->path, op->x, op->y);	1145	op->map->path, op->x, op->y);
1328	/* in old days, we used to set x and y to 0 and continue.	1146	/* in old days, we used to set x and y to 0 and continue.
1329	* it seems if we get into this case, something is probablye	1147	* it seems if we get into this case, something is probablye
1330	* screwed up and should be fixed.	1148	* screwed up and should be fixed.
1331	*/	1149	*/
1332	abort();	1150	abort ();
1333	}	1151	}
		1152
1334	if (op->map != m) {	1153	if (op->map != m)
1335	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",	1154	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1336	op->map->path, m->path, op->x, op->y, x, y);	1155	op->map->path, m->path, op->x, op->y, x, y);
1337	}
1338		1156
1339	/* Re did the following section of code - it looks like it had	1157	/* Re did the following section of code - it looks like it had
1340	* lots of logic for things we no longer care about	1158	* lots of logic for things we no longer care about
1341	*/	1159	*/
1342		1160
1343	/* link the object above us */	1161	/* link the object above us */
1344	if (op->above)	1162	if (op->above)
1345	op->above->below=op->below;	1163	op->above->below = op->below;
1346	else	1164	else
1347	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */	1165	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1348		1166
1349	/* Relink the object below us, if there is one */	1167	/* Relink the object below us, if there is one */
1350	if(op->below) {	1168	if (op->below)
1351	op->below->above=op->above;	1169	op->below->above = op->above;
1352	} else {	1170	else
		1171	{
1353	/* Nothing below, which means we need to relink map object for this space	1172	/* Nothing below, which means we need to relink map object for this space
1354	* use translated coordinates in case some oddness with map tiling is	1173	* use translated coordinates in case some oddness with map tiling is
1355	* evident	1174	* evident
1356	*/	1175	*/
1357	if(GET_MAP_OB(m,x,y)!=op) {	1176	if (GET_MAP_OB (m, x, y) != op)
		1177	{
1358	dump_object(op);	1178	dump_object (op);
		1179	LOG (llevError,
1359	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);	1180	"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);
1360	dump_object(GET_MAP_OB(m,x,y));	1181	dump_object (GET_MAP_OB (m, x, y));
1361	LOG(llevError,"%s\n",errmsg);	1182	LOG (llevError, "%s\n", errmsg);
1362	}	1183	}
		1184
1363	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1185	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */
1364	}	1186	}
1365	op->above=NULL;	1187
		1188	op->above = 0;
1366	op->below=NULL;	1189	op->below = 0;
1367		1190
1368	if (op->map->in_memory == MAP_SAVING)	1191	if (op->map->in_memory == MAP_SAVING)
1369	return;	1192	return;
1370		1193
1371	tag = op->count;
1372	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1194	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
		1195
1373	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1196	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
		1197	{
1374	/* No point updating the players look faces if he is the object	1198	/* No point updating the players look faces if he is the object
1375	* being removed.	1199	* being removed.
1376	*/	1200	*/
1377		1201
1378	if(tmp->type==PLAYER && tmp!=op) {	1202	if (tmp->type == PLAYER && tmp != op)
		1203	{
1379	/* If a container that the player is currently using somehow gets	1204	/* If a container that the player is currently using somehow gets
1380	* removed (most likely destroyed), update the player view	1205	* removed (most likely destroyed), update the player view
1381	* appropriately.	1206	* appropriately.
1382	*/	1207	*/
1383	if (tmp->container==op) {	1208	if (tmp->container == op)
1384	CLEAR_FLAG(op, FLAG_APPLIED);	1209	{
1385	tmp->container=NULL;	1210	CLEAR_FLAG (op, FLAG_APPLIED);
1386	}	1211	tmp->container = NULL;
		1212	}
		1213
1387	tmp->contr->socket.update_look=1;	1214	tmp->contr->socket.update_look = 1;
1388	}	1215	}
		1216
1389	/* See if player moving off should effect something */	1217	/* See if player moving off should effect something */
1390	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1218	if (check_walk_off && ((op->move_type & tmp->move_off) && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1391	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1219	{
1392
1393	move_apply(tmp, op, NULL);	1220	move_apply (tmp, op, NULL);
1394	if (was_destroyed (op, tag)) {
1395	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "
1396	"leaving object\n", tmp->name, tmp->arch->name);
1397	}
1398	}
1399		1221
		1222	if (op->destroyed ());
		1223	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name);
		1224	}
		1225
1400	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1226	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1401		1227
1402	if(tmp->above == tmp)	1228	if (tmp->above == tmp)
1403	tmp->above = NULL;	1229	tmp->above = NULL;
1404	last=tmp;	1230
1405	}	1231	last = tmp;
		1232	}
		1233
1406	/* last == NULL of there are no objects on this space */	1234	/* last == NULL of there are no objects on this space */
1407	if (last==NULL) {	1235	if (last == NULL)
		1236	{
1408	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1237	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1409	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1238	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1410	* those out anyways, and if there are any flags set right now, they won't	1239	* those out anyways, and if there are any flags set right now, they won't
1411	* be correct anyways.	1240	* be correct anyways.
1412	*/	1241	*/
1413	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);	1242	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1414	update_position(op->map, op->x, op->y);	1243	update_position (op->map, op->x, op->y);
1415	}	1244	}
1416	else	1245	else
1417	update_object(last, UP_OBJ_REMOVE);	1246	update_object (last, UP_OBJ_REMOVE);
1418		1247
1419	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1248	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))
1420	update_all_los(op->map, op->x, op->y);	1249	update_all_los (op->map, op->x, op->y);
1421		1250	}
1422	}	1251	}
1423		1252
1424	/*	1253	/*
1425	* merge_ob(op,top):	1254	* merge_ob(op,top):
1426	*	1255	*
1427	* This function goes through all objects below and including top, and	1256	* This function goes through all objects below and including top, and
1428	* merges op to the first matching object.	1257	* merges op to the first matching object.
1429	* If top is NULL, it is calculated.	1258	* If top is NULL, it is calculated.
1430	* Returns pointer to object if it succeded in the merge, otherwise NULL	1259	* Returns pointer to object if it succeded in the merge, otherwise NULL
1431	*/	1260	*/
1432		1261	object *
1433	object *merge_ob(object *op, object *top) {	1262	merge_ob (object *op, object *top)
		1263	{
1434	if(!op->nrof)	1264	if (!op->nrof)
1435	return 0;	1265	return 0;
		1266
1436	if(top==NULL)	1267	if (top == NULL)
1437	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1268	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1269
1438	for(;top!=NULL;top=top->below) {	1270	for (; top != NULL; top = top->below)
		1271	{
1439	if(top==op)	1272	if (top == op)
1440	continue;	1273	continue;
1441	if (CAN_MERGE(op,top))	1274	if (CAN_MERGE (op, top))
1442	{	1275	{
1443	top->nrof+=op->nrof;	1276	top->nrof += op->nrof;
		1277
1444	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1278	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1445	op->weight = 0; /* Don't want any adjustements now */	1279	op->weight = 0; /* Don't want any adjustements now */
1446	remove_ob(op);	1280	remove_ob (op);
1447	free_object(op);	1281	free_object (op);
1448	return top;	1282	return top;
1449	}	1283	}
1450	}	1284	}
		1285
1451	return NULL;	1286	return 0;
1452	}	1287	}
1453		1288
1454	/*	1289	/*
1455	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1290	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1456	* job preparing multi-part monsters	1291	* job preparing multi-part monsters
1457	*/	1292	*/
		1293	object *
1458	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1294	insert_ob_in_map_at (object *op, mapstruct *m, object *originator, int flag, int x, int y)
		1295	{
1459	object* tmp;	1296	object *tmp;
		1297
1460	if (op->head)	1298	if (op->head)
1461	op=op->head;	1299	op = op->head;
		1300
1462	for (tmp=op;tmp;tmp=tmp->more){	1301	for (tmp = op; tmp; tmp = tmp->more)
		1302	{
1463	tmp->x=x+tmp->arch->clone.x;	1303	tmp->x = x + tmp->arch->clone.x;
1464	tmp->y=y+tmp->arch->clone.y;	1304	tmp->y = y + tmp->arch->clone.y;
1465	}	1305	}
		1306
1466	return insert_ob_in_map (op, m, originator, flag);	1307	return insert_ob_in_map (op, m, originator, flag);
1467	}	1308	}
1468		1309
1469	/*	1310	/*
1470	* insert_ob_in_map (op, map, originator, flag):	1311	* insert_ob_in_map (op, map, originator, flag):
1471	* This function inserts the object in the two-way linked list	1312	* This function inserts the object in the two-way linked list
…		…
1485	* new object if 'op' was merged with other object	1326	* new object if 'op' was merged with other object
1486	* NULL if 'op' was destroyed	1327	* NULL if 'op' was destroyed
1487	* just 'op' otherwise	1328	* just 'op' otherwise
1488	*/	1329	*/
1489		1330
		1331	object *
1490	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1332	insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)
1491	{	1333	{
1492	object *tmp, *top, *floor=NULL;	1334	object *tmp, *top, *floor = NULL;
1493	sint16 x,y;	1335	sint16 x, y;
1494		1336
1495	if (QUERY_FLAG (op, FLAG_FREED)) {	1337	if (QUERY_FLAG (op, FLAG_FREED))
		1338	{
1496	LOG (llevError, "Trying to insert freed object!\n");	1339	LOG (llevError, "Trying to insert freed object!\n");
1497	return NULL;	1340	return NULL;
		1341	}
		1342
		1343	if (m == NULL)
1498	}	1344	{
1499	if(m==NULL) {
1500	dump_object(op);	1345	dump_object (op);
1501	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1346	LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg);
1502	return op;	1347	return op;
1503	}	1348	}
		1349
1504	if(out_of_map(m,op->x,op->y)) {	1350	if (out_of_map (m, op->x, op->y))
		1351	{
1505	dump_object(op);	1352	dump_object (op);
1506	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1353	LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg);
1507	#ifdef MANY_CORES	1354	#ifdef MANY_CORES
1508	/* Better to catch this here, as otherwise the next use of this object	1355	/* Better to catch this here, as otherwise the next use of this object
1509	* is likely to cause a crash. Better to find out where it is getting	1356	* is likely to cause a crash. Better to find out where it is getting
1510	* improperly inserted.	1357	* improperly inserted.
1511	*/	1358	*/
1512	abort();	1359	abort ();
1513	#endif	1360	#endif
1514	return op;	1361	return op;
1515	}	1362	}
		1363
1516	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1364	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1365	{
1517	dump_object(op);	1366	dump_object (op);
1518	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1367	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg);
1519	return op;	1368	return op;
1520	}	1369	}
		1370
1521	if(op->more!=NULL) {	1371	if (op->more != NULL)
		1372	{
1522	/* The part may be on a different map. */	1373	/* The part may be on a different map. */
1523		1374
1524	object *more = op->more;	1375	object *more = op->more;
1525		1376
1526	/* We really need the caller to normalize coordinates - if	1377	/* We really need the caller to normalize coordinates - if
1527	* we set the map, that doesn't work if the location is within	1378	* we set the map, that doesn't work if the location is within
1528	* a map and this is straddling an edge. So only if coordinate	1379	* a map and this is straddling an edge. So only if coordinate
1529	* is clear wrong do we normalize it.	1380	* is clear wrong do we normalize it.
1530	*/	1381	*/
1531	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1382	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1532	/* Debugging information so you can see the last coordinates this object had */
1533	more->ox = more->x;
1534	more->oy = more->y;
1535	more->map = get_map_from_coord(m, &more->x, &more->y);	1383	more->map = get_map_from_coord (m, &more->x, &more->y);
1536	} else if (!more->map) {	1384	else if (!more->map)
		1385	{
1537	/* For backwards compatibility - when not dealing with tiled maps,	1386	/* For backwards compatibility - when not dealing with tiled maps,
1538	* more->map should always point to the parent.	1387	* more->map should always point to the parent.
1539	*/	1388	*/
1540	more->map = m;	1389	more->map = m;
1541	}	1390	}
1542		1391
1543	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1392	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1393	{
1544	if ( ! op->head)	1394	if (!op->head)
1545	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1395	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1396
1546	return NULL;	1397	return NULL;
1547	}	1398	}
1548	}	1399	}
		1400
1549	CLEAR_FLAG(op,FLAG_REMOVED);	1401	CLEAR_FLAG (op, FLAG_REMOVED);
1550		1402
1551	/* Debugging information so you can see the last coordinates this object had */
1552	op->ox=op->x;
1553	op->oy=op->y;
1554
1555	/* Ideally, the caller figures this out. However, it complicates a lot	1403	/* Ideally, the caller figures this out. However, it complicates a lot
1556	* of areas of callers (eg, anything that uses find_free_spot would now	1404	* of areas of callers (eg, anything that uses find_free_spot would now
1557	* need extra work	1405	* need extra work
1558	*/	1406	*/
1559	op->map=get_map_from_coord(m, &op->x, &op->y);	1407	op->map = get_map_from_coord (m, &op->x, &op->y);
1560	x = op->x;	1408	x = op->x;
1561	y = op->y;	1409	y = op->y;
1562		1410
1563	/* this has to be done after we translate the coordinates.	1411	/* this has to be done after we translate the coordinates.
1564	*/	1412	*/
1565	if(op->nrof && !(flag & INS_NO_MERGE)) {	1413	if (op->nrof && !(flag & INS_NO_MERGE))
1566	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1414	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1567	if (CAN_MERGE(op,tmp)) {	1415	if (CAN_MERGE (op, tmp))
1568	op->nrof+=tmp->nrof;	1416	{
1569	remove_ob(tmp);	1417	op->nrof += tmp->nrof;
1570	free_object(tmp);	1418	remove_ob (tmp);
1571	}	1419	free_object (tmp);
1572	}	1420	}
1573		1421
1574	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1422	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1575	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1423	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1424
1576	if (!QUERY_FLAG(op, FLAG_ALIVE))	1425	if (!QUERY_FLAG (op, FLAG_ALIVE))
1577	CLEAR_FLAG(op, FLAG_NO_STEAL);	1426	CLEAR_FLAG (op, FLAG_NO_STEAL);
1578		1427
1579	if (flag & INS_BELOW_ORIGINATOR) {	1428	if (flag & INS_BELOW_ORIGINATOR)
		1429	{
1580	if (originator->map != op->map || originator->x != op->x ||	1430	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1581	originator->y != op->y) {	1431	{
1582	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1432	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1583	abort();	1433	abort ();
1584	}	1434	}
		1435
1585	op->above = originator;	1436	op->above = originator;
1586	op->below = originator->below;	1437	op->below = originator->below;
1587	if (op->below) op->below->above = op;	1438
		1439	if (op->below)
		1440	op->below->above = op;
		1441	else
1588	else SET_MAP_OB(op->map, op->x, op->y, op);	1442	SET_MAP_OB (op->map, op->x, op->y, op);
		1443
1589	/* since *below* originator, no need to update top */	1444	/* since *below* originator, no need to update top */
1590	originator->below = op;	1445	originator->below = op;
1591	} else {	1446	}
		1447	else
		1448	{
1592	/* If there are other objects, then */	1449	/* If there are other objects, then */
1593	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1450	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1451	{
1594	object *last=NULL;	1452	object *last = NULL;
1595	/*	1453
		1454	/*
1596	* If there are multiple objects on this space, we do some trickier handling.	1455	* If there are multiple objects on this space, we do some trickier handling.
1597	* We've already dealt with merging if appropriate.	1456	* We've already dealt with merging if appropriate.
1598	* Generally, we want to put the new object on top. But if	1457	* Generally, we want to put the new object on top. But if
1599	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1458	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1600	* floor, we want to insert above that and no further.	1459	* floor, we want to insert above that and no further.
1601	* Also, if there are spell objects on this space, we stop processing	1460	* Also, if there are spell objects on this space, we stop processing
1602	* once we get to them. This reduces the need to traverse over all of	1461	* once we get to them. This reduces the need to traverse over all of
1603	* them when adding another one - this saves quite a bit of cpu time	1462	* them when adding another one - this saves quite a bit of cpu time
1604	* when lots of spells are cast in one area. Currently, it is presumed	1463	* when lots of spells are cast in one area. Currently, it is presumed
1605	* that flying non pickable objects are spell objects.	1464	* that flying non pickable objects are spell objects.
1606	*/	1465	*/
1607		1466
1608	while (top != NULL) {	1467	while (top != NULL)
1609	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||	1468	{
1610	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;	1469	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1611	if (QUERY_FLAG(top, FLAG_NO_PICK)	1470	floor = top;
1612	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))	1471
1613	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))	1472	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1614	{	1473	{
1615	/* We insert above top, so we want this object below this */	1474	/* We insert above top, so we want this object below this */
1616	top=top->below;	1475	top = top->below;
1617	break;	1476	break;
1618	}	1477	}
1619	last = top;	1478
1620	top = top->above;	1479	last = top;
1621	}	1480	top = top->above;
		1481	}
		1482
1622	/* Don't want top to be NULL, so set it to the last valid object */	1483	/* Don't want top to be NULL, so set it to the last valid object */
1623	top = last;	1484	top = last;
1624		1485
1625	/* We let update_position deal with figuring out what the space	1486	/* We let update_position deal with figuring out what the space
1626	* looks like instead of lots of conditions here.	1487	* looks like instead of lots of conditions here.
1627	* makes things faster, and effectively the same result.	1488	* makes things faster, and effectively the same result.
1628	*/	1489	*/
1629		1490
1630	/* Have object 'fall below' other objects that block view.	1491	/* Have object 'fall below' other objects that block view.
1631	* Unless those objects are exits, type 66	1492	* Unless those objects are exits, type 66
1632	* If INS_ON_TOP is used, don't do this processing	1493	* If INS_ON_TOP is used, don't do this processing
1633	* Need to find the object that in fact blocks view, otherwise	1494	* Need to find the object that in fact blocks view, otherwise
1634	* stacking is a bit odd.	1495	* stacking is a bit odd.
1635	*/	1496	*/
1636	if (!(flag & INS_ON_TOP) &&	1497	if (!(flag & INS_ON_TOP) &&
1637	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1498	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1638	(op->face && !op->face->visibility)) {	1499	{
1639	for (last=top; last != floor; last=last->below)	1500	for (last = top; last != floor; last = last->below)
1640	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1501	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1502	break;
1641	/* Check to see if we found the object that blocks view,	1503	/* Check to see if we found the object that blocks view,
1642	* and make sure we have a below pointer for it so that	1504	* and make sure we have a below pointer for it so that
1643	* we can get inserted below this one, which requires we	1505	* we can get inserted below this one, which requires we
1644	* set top to the object below us.	1506	* set top to the object below us.
1645	*/	1507	*/
1646	if (last && last->below && last != floor) top=last->below;	1508	if (last && last->below && last != floor)
1647	}	1509	top = last->below;
1648	} /* If objects on this space */	1510	}
		1511	} /* If objects on this space */
		1512
1649	if (flag & INS_MAP_LOAD)	1513	if (flag & INS_MAP_LOAD)
1650	top = GET_MAP_TOP(op->map,op->x,op->y);	1514	top = GET_MAP_TOP (op->map, op->x, op->y);
		1515
1651	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1516	if (flag & INS_ABOVE_FLOOR_ONLY)
		1517	top = floor;
1652		1518
1653	/* Top is the object that our object (op) is going to get inserted above.	1519	/* Top is the object that our object (op) is going to get inserted above.
1654	*/	1520	*/
1655		1521
1656	/* First object on this space */	1522	/* First object on this space */
1657	if (!top) {	1523	if (!top)
		1524	{
1658	op->above = GET_MAP_OB(op->map, op->x, op->y);	1525	op->above = GET_MAP_OB (op->map, op->x, op->y);
1659	if (op->above) op->above->below = op;	1526
		1527	if (op->above)
		1528	op->above->below = op;
		1529
1660	op->below = NULL;	1530	op->below = NULL;
1661	SET_MAP_OB(op->map, op->x, op->y, op);	1531	SET_MAP_OB (op->map, op->x, op->y, op);
1662	} else { /* get inserted into the stack above top */	1532	}
		1533	else
		1534	{ /* get inserted into the stack above top */
1663	op->above = top->above;	1535	op->above = top->above;
1664	if (op->above) op->above->below = op;	1536
		1537	if (op->above)
		1538	op->above->below = op;
		1539
1665	op->below = top;	1540	op->below = top;
1666	top->above = op;	1541	top->above = op;
1667	}	1542	}
		1543
1668	if (op->above==NULL)	1544	if (op->above == NULL)
1669	SET_MAP_TOP(op->map,op->x, op->y, op);	1545	SET_MAP_TOP (op->map, op->x, op->y, op);
1670	} /* else not INS_BELOW_ORIGINATOR */	1546	} /* else not INS_BELOW_ORIGINATOR */
1671		1547
1672	if(op->type==PLAYER)	1548	if (op->type == PLAYER)
1673	op->contr->do_los=1;	1549	op->contr->do_los = 1;
1674		1550
1675	/* If we have a floor, we know the player, if any, will be above	1551	/* If we have a floor, we know the player, if any, will be above
1676	* it, so save a few ticks and start from there.	1552	* it, so save a few ticks and start from there.
1677	*/	1553	*/
1678	if (!(flag & INS_MAP_LOAD))	1554	if (!(flag & INS_MAP_LOAD))
1679	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1555	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1680	if (tmp->type == PLAYER)	1556	if (tmp->type == PLAYER)
1681	tmp->contr->socket.update_look=1;	1557	tmp->contr->socket.update_look = 1;
1682	}
1683		1558
1684	/* If this object glows, it may affect lighting conditions that are	1559	/* If this object glows, it may affect lighting conditions that are
1685	* visible to others on this map. But update_all_los is really	1560	* visible to others on this map. But update_all_los is really
1686	* an inefficient way to do this, as it means los for all players	1561	* an inefficient way to do this, as it means los for all players
1687	* on the map will get recalculated. The players could very well	1562	* on the map will get recalculated. The players could very well
1688	* be far away from this change and not affected in any way -	1563	* be far away from this change and not affected in any way -
1689	* this should get redone to only look for players within range,	1564	* this should get redone to only look for players within range,
1690	* or just updating the P_NEED_UPDATE for spaces within this area	1565	* or just updating the P_NEED_UPDATE for spaces within this area
1691	* of effect may be sufficient.	1566	* of effect may be sufficient.
1692	*/	1567	*/
1693	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1568	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
1694	update_all_los(op->map, op->x, op->y);	1569	update_all_los (op->map, op->x, op->y);
1695		1570
1696
1697	/* updates flags (blocked, alive, no magic, etc) for this map space */	1571	/* updates flags (blocked, alive, no magic, etc) for this map space */
1698	update_object(op,UP_OBJ_INSERT);	1572	update_object (op, UP_OBJ_INSERT);
1699		1573
1700
1701	/* Don't know if moving this to the end will break anything. However,	1574	/* Don't know if moving this to the end will break anything. However,
1702	* we want to have update_look set above before calling this.	1575	* we want to have update_look set above before calling this.
1703	*	1576	*
1704	* check_move_on() must be after this because code called from	1577	* check_move_on() must be after this because code called from
1705	* check_move_on() depends on correct map flags (so functions like	1578	* check_move_on() depends on correct map flags (so functions like
1706	* blocked() and wall() work properly), and these flags are updated by	1579	* blocked() and wall() work properly), and these flags are updated by
1707	* update_object().	1580	* update_object().
1708	*/	1581	*/
1709		1582
1710	/* if this is not the head or flag has been passed, don't check walk on status */	1583	/* if this is not the head or flag has been passed, don't check walk on status */
1711
1712	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1584	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1585	{
1713	if (check_move_on(op, originator))	1586	if (check_move_on (op, originator))
1714	return NULL;	1587	return NULL;
1715		1588
1716	/* If we are a multi part object, lets work our way through the check	1589	/* If we are a multi part object, lets work our way through the check
1717	* walk on's.	1590	* walk on's.
1718	*/	1591	*/
1719	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1592	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1720	if (check_move_on (tmp, originator))	1593	if (check_move_on (tmp, originator))
1721	return NULL;	1594	return NULL;
1722	}	1595	}
		1596
1723	return op;	1597	return op;
1724	}	1598	}
1725		1599
1726	/* this function inserts an object in the map, but if it	1600	/* this function inserts an object in the map, but if it
1727	* finds an object of its own type, it'll remove that one first.	1601	* finds an object of its own type, it'll remove that one first.
1728	* op is the object to insert it under: supplies x and the map.	1602	* op is the object to insert it under: supplies x and the map.
1729	*/	1603	*/
		1604	void
1730	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1605	replace_insert_ob_in_map (const char *arch_string, object *op)
		1606	{
1731	object *tmp;	1607	object *
1732	object *tmp1;	1608	tmp;
		1609	object *
		1610	tmp1;
1733		1611
1734	/* first search for itself and remove any old instances */	1612	/* first search for itself and remove any old instances */
1735		1613
1736	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1614	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
		1615	{
1737	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1616	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
		1617	{
1738	remove_ob(tmp);	1618	remove_ob (tmp);
1739	free_object(tmp);	1619	free_object (tmp);
1740	}	1620	}
1741	}	1621	}
1742		1622
1743	tmp1=arch_to_object(find_archetype(arch_string));	1623	tmp1 = arch_to_object (archetype::find (arch_string));
1744		1624
1745		1625	tmp1->x = op->x;
1746	tmp1->x = op->x; tmp1->y = op->y;	1626	tmp1->y = op->y;
1747	insert_ob_in_map(tmp1,op->map,op,0);	1627	insert_ob_in_map (tmp1, op->map, op, 0);
1748	}	1628	}
1749		1629
1750	/*	1630	/*
1751	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1631	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1752	* is returned contains nr objects, and the remaining parts contains	1632	* is returned contains nr objects, and the remaining parts contains
1753	* the rest (or is removed and freed if that number is 0).	1633	* the rest (or is removed and freed if that number is 0).
1754	* On failure, NULL is returned, and the reason put into the	1634	* On failure, NULL is returned, and the reason put into the
1755	* global static errmsg array.	1635	* global static errmsg array.
1756	*/	1636	*/
1757		1637
		1638	object *
1758	object *get_split_ob(object *orig_ob, uint32 nr) {	1639	get_split_ob (object *orig_ob, uint32 nr)
1759	object *newob;	1640	{
		1641	object *
		1642	newob;
		1643	int
1760	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1644	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1761		1645
1762	if(orig_ob->nrof<nr) {	1646	if (orig_ob->nrof < nr)
1763	sprintf(errmsg,"There are only %d %ss.",
1764	orig_ob->nrof?orig_ob->nrof:1, orig_ob->name);
1765	return NULL;
1766	}	1647	{
		1648	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
		1649	return NULL;
		1650	}
		1651
1767	newob = object_create_clone(orig_ob);	1652	newob = object_create_clone (orig_ob);
		1653
1768	if((orig_ob->nrof-=nr)<1) {	1654	if ((orig_ob->nrof -= nr) < 1)
		1655	{
1769	if ( ! is_removed)	1656	if (!is_removed)
1770	remove_ob(orig_ob);	1657	remove_ob (orig_ob);
1771	free_object2(orig_ob, 1);	1658	free_object2 (orig_ob, 1);
1772	}	1659	}
1773	else if ( ! is_removed) {	1660	else if (!is_removed)
		1661	{
1774	if(orig_ob->env!=NULL)	1662	if (orig_ob->env != NULL)
1775	sub_weight (orig_ob->env,orig_ob->weight*nr);	1663	sub_weight (orig_ob->env, orig_ob->weight * nr);
1776	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1664	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1665	{
1777	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1666	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1778	LOG(llevDebug,
1779	"Error, Tried to split object whose map is not in memory.\n");	1667	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1780	return NULL;	1668	return NULL;
1781	}	1669	}
1782	}	1670	}
		1671
1783	newob->nrof=nr;	1672	newob->nrof = nr;
1784		1673
1785	return newob;	1674	return newob;
1786	}	1675	}
1787		1676
1788	/*	1677	/*
1789	* decrease_ob_nr(object, number) decreases a specified number from	1678	* decrease_ob_nr(object, number) decreases a specified number from
1790	* the amount of an object. If the amount reaches 0, the object	1679	* the amount of an object. If the amount reaches 0, the object
1791	* is subsequently removed and freed.	1680	* is subsequently removed and freed.
1792	*	1681	*
1793	* Return value: 'op' if something is left, NULL if the amount reached 0	1682	* Return value: 'op' if something is left, NULL if the amount reached 0
1794	*/	1683	*/
1795		1684
		1685	object *
1796	object *decrease_ob_nr (object *op, uint32 i)	1686	decrease_ob_nr (object *op, uint32 i)
1797	{	1687	{
1798	object *tmp;	1688	object *tmp;
1799	player *pl;	1689	player *pl;
1800		1690
1801	if (i == 0) /* objects with op->nrof require this check */	1691	if (i == 0) /* objects with op->nrof require this check */
1802	return op;	1692	return op;
1803		1693
1804	if (i > op->nrof)	1694	if (i > op->nrof)
1805	i = op->nrof;	1695	i = op->nrof;
1806		1696
1807	if (QUERY_FLAG (op, FLAG_REMOVED))	1697	if (QUERY_FLAG (op, FLAG_REMOVED))
		1698	op->nrof -= i;
		1699	else if (op->env != NULL)
		1700	{
		1701	/* is this object in the players inventory, or sub container
		1702	* therein?
		1703	*/
		1704	tmp = is_player_inv (op->env);
		1705	/* nope. Is this a container the player has opened?
		1706	* If so, set tmp to that player.
		1707	* IMO, searching through all the players will mostly
		1708	* likely be quicker than following op->env to the map,
		1709	* and then searching the map for a player.
		1710	*/
		1711	if (!tmp)
		1712	{
		1713	for (pl = first_player; pl; pl = pl->next)
		1714	if (pl->ob->container == op->env)
		1715	break;
		1716	if (pl)
		1717	tmp = pl->ob;
		1718	else
		1719	tmp = NULL;
		1720	}
		1721
		1722	if (i < op->nrof)
		1723	{
		1724	sub_weight (op->env, op->weight * i);
		1725	op->nrof -= i;
		1726	if (tmp)
		1727	{
		1728	esrv_send_item (tmp, op);
		1729	}
		1730	}
		1731	else
		1732	{
		1733	remove_ob (op);
		1734	op->nrof = 0;
		1735	if (tmp)
		1736	{
		1737	esrv_del_item (tmp->contr, op->count);
		1738	}
		1739	}
1808	{	1740	}
		1741	else
		1742	{
		1743	object *above = op->above;
		1744
		1745	if (i < op->nrof)
1809	op->nrof -= i;	1746	op->nrof -= i;
1810	}
1811	else if (op->env != NULL)
1812	{
1813	/* is this object in the players inventory, or sub container
1814	* therein?
1815	*/
1816	tmp = is_player_inv (op->env);
1817	/* nope. Is this a container the player has opened?
1818	* If so, set tmp to that player.
1819	* IMO, searching through all the players will mostly
1820	* likely be quicker than following op->env to the map,
1821	* and then searching the map for a player.
1822	*/
1823	if (!tmp) {
1824	for (pl=first_player; pl; pl=pl->next)
1825	if (pl->ob->container == op->env) break;
1826	if (pl) tmp=pl->ob;
1827	else tmp=NULL;
1828	}
1829
1830	if (i < op->nrof) {
1831	sub_weight (op->env, op->weight * i);
1832	op->nrof -= i;
1833	if (tmp) {
1834	esrv_send_item(tmp, op);
1835	}
1836	} else {	1747	else
		1748	{
1837	remove_ob (op);	1749	remove_ob (op);
1838	op->nrof = 0;	1750	op->nrof = 0;
1839	if (tmp) {
1840	esrv_del_item(tmp->contr, op->count);
1841	}	1751	}
1842	}
1843	}
1844	else
1845	{
1846	object *above = op->above;
1847		1752
1848	if (i < op->nrof) {
1849	op->nrof -= i;
1850	} else {
1851	remove_ob (op);
1852	op->nrof = 0;
1853	}
1854	/* Since we just removed op, op->above is null */	1753	/* Since we just removed op, op->above is null */
1855	for (tmp = above; tmp != NULL; tmp = tmp->above)	1754	for (tmp = above; tmp != NULL; tmp = tmp->above)
1856	if (tmp->type == PLAYER) {	1755	if (tmp->type == PLAYER)
		1756	{
1857	if (op->nrof)	1757	if (op->nrof)
1858	esrv_send_item(tmp, op);	1758	esrv_send_item (tmp, op);
1859	else	1759	else
1860	esrv_del_item(tmp->contr, op->count);	1760	esrv_del_item (tmp->contr, op->count);
1861	}	1761	}
1862	}	1762	}
1863		1763
1864	if (op->nrof) {	1764	if (op->nrof)
1865	return op;	1765	return op;
1866	} else {	1766	else
		1767	{
1867	free_object (op);	1768	free_object (op);
1868	return NULL;	1769	return NULL;
1869	}	1770	}
1870	}	1771	}
1871		1772
1872	/*	1773	/*
1873	* add_weight(object, weight) adds the specified weight to an object,	1774	* add_weight(object, weight) adds the specified weight to an object,
1874	* and also updates how much the environment(s) is/are carrying.	1775	* and also updates how much the environment(s) is/are carrying.
1875	*/	1776	*/
1876		1777
		1778	void
1877	void add_weight (object *op, signed long weight) {	1779	add_weight (object *op, signed long weight)
		1780	{
1878	while (op!=NULL) {	1781	while (op != NULL)
		1782	{
1879	if (op->type == CONTAINER) {	1783	if (op->type == CONTAINER)
1880	weight=(signed long)(weight*(100-op->stats.Str)/100);	1784	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1881	}	1785
1882	op->carrying+=weight;	1786	op->carrying += weight;
1883	op=op->env;	1787	op = op->env;
1884	}	1788	}
1885	}	1789	}
1886		1790
1887	/*	1791	/*
1888	* insert_ob_in_ob(op,environment):	1792	* insert_ob_in_ob(op,environment):
1889	* This function inserts the object op in the linked list	1793	* This function inserts the object op in the linked list
…		…
1896	*	1800	*
1897	* The function returns now pointer to inserted item, and return value can	1801	* The function returns now pointer to inserted item, and return value can
1898	* be != op, if items are merged. -Tero	1802	* be != op, if items are merged. -Tero
1899	*/	1803	*/
1900		1804
		1805	object *
1901	object *insert_ob_in_ob(object *op,object *where) {	1806	insert_ob_in_ob (object *op, object *where)
1902	object *tmp, *otmp;	1807	{
		1808	object *
		1809	tmp, *
		1810	otmp;
1903		1811
1904	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1812	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1813	{
1905	dump_object(op);	1814	dump_object (op);
1906	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1815	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", errmsg);
1907	return op;	1816	return op;
1908	}	1817	}
		1818
1909	if(where==NULL) {	1819	if (where == NULL)
		1820	{
1910	dump_object(op);	1821	dump_object (op);
1911	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);	1822	LOG (llevError, "Trying to put object in NULL.\n%s\n", errmsg);
1912	return op;	1823	return op;
1913	}	1824	}
		1825
1914	if (where->head) {	1826	if (where->head)
1915	LOG(llevDebug,	1827	{
1916	"Warning: Tried to insert object wrong part of multipart object.\n");	1828	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1917	where = where->head;	1829	where = where->head;
1918	}	1830	}
		1831
1919	if (op->more) {	1832	if (op->more)
		1833	{
1920	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1834	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1921	op->name, op->count);
1922	return op;	1835	return op;
1923	}	1836	}
		1837
1924	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1838	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1925	CLEAR_FLAG(op, FLAG_REMOVED);	1839	CLEAR_FLAG (op, FLAG_REMOVED);
1926	if(op->nrof) {	1840	if (op->nrof)
		1841	{
1927	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1842	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)
1928	if ( CAN_MERGE(tmp,op) ) {	1843	if (CAN_MERGE (tmp, op))
		1844	{
1929	/* return the original object and remove inserted object	1845	/* return the original object and remove inserted object
1930	(client needs the original object) */	1846	(client needs the original object) */
1931	tmp->nrof += op->nrof;	1847	tmp->nrof += op->nrof;
1932	/* Weight handling gets pretty funky. Since we are adding to	1848	/* Weight handling gets pretty funky. Since we are adding to
1933	* tmp->nrof, we need to increase the weight.	1849	* tmp->nrof, we need to increase the weight.
1934	*/	1850	*/
1935	add_weight (where, op->weight*op->nrof);	1851	add_weight (where, op->weight * op->nrof);
1936	SET_FLAG(op, FLAG_REMOVED);	1852	SET_FLAG (op, FLAG_REMOVED);
1937	free_object(op); /* free the inserted object */	1853	free_object (op); /* free the inserted object */
1938	op = tmp;	1854	op = tmp;
1939	remove_ob (op); /* and fix old object's links */	1855	remove_ob (op); /* and fix old object's links */
1940	CLEAR_FLAG(op, FLAG_REMOVED);	1856	CLEAR_FLAG (op, FLAG_REMOVED);
1941	break;	1857	break;
1942	}	1858	}
1943		1859
1944	/* I assume combined objects have no inventory	1860	/* I assume combined objects have no inventory
1945	* We add the weight - this object could have just been removed	1861	* We add the weight - this object could have just been removed
1946	* (if it was possible to merge). calling remove_ob will subtract	1862	* (if it was possible to merge). calling remove_ob will subtract
1947	* the weight, so we need to add it in again, since we actually do	1863	* the weight, so we need to add it in again, since we actually do
1948	* the linking below	1864	* the linking below
1949	*/	1865	*/
1950	add_weight (where, op->weight*op->nrof);	1866	add_weight (where, op->weight * op->nrof);
		1867	}
1951	} else	1868	else
1952	add_weight (where, (op->weight+op->carrying));	1869	add_weight (where, (op->weight + op->carrying));
1953		1870
1954	otmp=is_player_inv(where);	1871	otmp = is_player_inv (where);
1955	if (otmp&&otmp->contr!=NULL) {	1872	if (otmp && otmp->contr != NULL)
		1873	{
1956	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1874	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1957	fix_player(otmp);	1875	fix_player (otmp);
1958	}	1876	}
1959		1877
1960	op->map=NULL;	1878	op->map = NULL;
1961	op->env=where;	1879	op->env = where;
1962	op->above=NULL;	1880	op->above = NULL;
1963	op->below=NULL;	1881	op->below = NULL;
1964	op->x=0,op->y=0;	1882	op->x = 0, op->y = 0;
1965	op->ox=0,op->oy=0;
1966		1883
1967	/* reset the light list and los of the players on the map */	1884	/* reset the light list and los of the players on the map */
1968	if((op->glow_radius!=0)&&where->map)	1885	if ((op->glow_radius != 0) && where->map)
1969	{	1886	{
1970	#ifdef DEBUG_LIGHTS	1887	#ifdef DEBUG_LIGHTS
1971	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1888	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1972	op->name);
1973	#endif /* DEBUG_LIGHTS */	1889	#endif /* DEBUG_LIGHTS */
		1890	if (MAP_DARKNESS (where->map))
1974	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1891	update_all_los (where->map, where->x, where->y);
1975	}	1892	}
1976		1893
1977	/* Client has no idea of ordering so lets not bother ordering it here.	1894	/* Client has no idea of ordering so lets not bother ordering it here.
1978	* It sure simplifies this function...	1895	* It sure simplifies this function...
1979	*/	1896	*/
1980	if (where->inv==NULL)	1897	if (where->inv == NULL)
1981	where->inv=op;	1898	where->inv = op;
1982	else {	1899	else
		1900	{
1983	op->below = where->inv;	1901	op->below = where->inv;
1984	op->below->above = op;	1902	op->below->above = op;
1985	where->inv = op;	1903	where->inv = op;
1986	}	1904	}
1987	return op;	1905	return op;
1988	}	1906	}
1989		1907
1990	/*	1908	/*
1991	* Checks if any objects has a move_type that matches objects	1909	* Checks if any objects has a move_type that matches objects
…		…
2006	* MSW 2001-07-08: Check all objects on space, not just those below	1924	* MSW 2001-07-08: Check all objects on space, not just those below
2007	* object being inserted. insert_ob_in_map may not put new objects	1925	* object being inserted. insert_ob_in_map may not put new objects
2008	* on top.	1926	* on top.
2009	*/	1927	*/
2010		1928
		1929	int
2011	int check_move_on (object *op, object *originator)	1930	check_move_on (object *op, object *originator)
2012	{	1931	{
2013	object *tmp;	1932	object *tmp;
2014	tag_t tag;
2015	mapstruct *m=op->map;	1933	mapstruct *m = op->map;
2016	int x=op->x, y=op->y;	1934	int x = op->x, y = op->y;
		1935
2017	MoveType move_on, move_slow, move_block;	1936	MoveType move_on, move_slow, move_block;
2018		1937
2019	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1938	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2020	return 0;
2021
2022	tag = op->count;
2023
2024	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
2025	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
2026	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
2027
2028	/* if nothing on this space will slow op down or be applied,
2029	* no need to do checking below. have to make sure move_type
2030	* is set, as lots of objects don't have it set - we treat that
2031	* as walking.
2032	*/
2033	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
2034	return 0;
2035
2036	/* This is basically inverse logic of that below - basically,
2037	* if the object can avoid the move on or slow move, they do so,
2038	* but can't do it if the alternate movement they are using is
2039	* blocked. Logic on this seems confusing, but does seem correct.
2040	*/
2041	if ((op->move_type & ~move_on & ~move_block) != 0 &&
2042	(op->move_type & ~move_slow & ~move_block) != 0) return 0;
2043
2044	/* The objects have to be checked from top to bottom.
2045	* Hence, we first go to the top:
2046	*/
2047
2048	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&
2049	tmp->above!=NULL; tmp=tmp->above) {
2050	/* Trim the search when we find the first other spell effect
2051	* this helps performance so that if a space has 50 spell objects,
2052	* we don't need to check all of them.
2053	*/
2054	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;
2055	}
2056	for(;tmp!=NULL; tmp=tmp->below) {
2057	if (tmp == op) continue; /* Can't apply yourself */
2058
2059	/* Check to see if one of the movement types should be slowed down.
2060	* Second check makes sure that the movement types not being slowed
2061	* (~slow_move) is not blocked on this space - just because the
2062	* space doesn't slow down swimming (for example), if you can't actually
2063	* swim on that space, can't use it to avoid the penalty.
2064	*/
2065	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {
2066	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2067	((op->move_type & tmp->move_slow) &&
2068	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {
2069
2070	float diff;
2071
2072	diff = tmp->move_slow_penalty*FABS(op->speed);
2073	if (op->type == PLAYER) {
2074	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||
2075	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {
2076	diff /= 4.0;
2077	}
2078	}
2079	op->speed_left -= diff;
2080	}
2081	}
2082
2083	/* Basically same logic as above, except now for actual apply. */
2084	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2085	((op->move_type & tmp->move_on) &&
2086	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {
2087
2088	move_apply(tmp, op, originator);
2089	if (was_destroyed (op, tag))
2090	return 1;
2091
2092	/* what the person/creature stepped onto has moved the object
2093	* someplace new. Don't process any further - if we did,
2094	* have a feeling strange problems would result.
2095	*/
2096	if (op->map != m || op->x != x || op->y != y) return 0;
2097	}
2098	}
2099	return 0;	1939	return 0;
		1940
		1941	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1942	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		1943	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		1944
		1945	/* if nothing on this space will slow op down or be applied,
		1946	* no need to do checking below. have to make sure move_type
		1947	* is set, as lots of objects don't have it set - we treat that
		1948	* as walking.
		1949	*/
		1950	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		1951	return 0;
		1952
		1953	/* This is basically inverse logic of that below - basically,
		1954	* if the object can avoid the move on or slow move, they do so,
		1955	* but can't do it if the alternate movement they are using is
		1956	* blocked. Logic on this seems confusing, but does seem correct.
		1957	*/
		1958	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		1959	return 0;
		1960
		1961	/* The objects have to be checked from top to bottom.
		1962	* Hence, we first go to the top:
		1963	*/
		1964
		1965	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
		1966	{
		1967	/* Trim the search when we find the first other spell effect
		1968	* this helps performance so that if a space has 50 spell objects,
		1969	* we don't need to check all of them.
		1970	*/
		1971	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1972	break;
		1973	}
		1974
		1975	for (; tmp; tmp = tmp->below)
		1976	{
		1977	if (tmp == op)
		1978	continue; /* Can't apply yourself */
		1979
		1980	/* Check to see if one of the movement types should be slowed down.
		1981	* Second check makes sure that the movement types not being slowed
		1982	* (~slow_move) is not blocked on this space - just because the
		1983	* space doesn't slow down swimming (for example), if you can't actually
		1984	* swim on that space, can't use it to avoid the penalty.
		1985	*/
		1986	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1987	{
		1988	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		1989	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1990	{
		1991
		1992	float
		1993	diff = tmp->move_slow_penalty * FABS (op->speed);
		1994
		1995	if (op->type == PLAYER)
		1996	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		1997	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		1998	diff /= 4.0;
		1999
		2000	op->speed_left -= diff;
		2001	}
		2002	}
		2003
		2004	/* Basically same logic as above, except now for actual apply. */
		2005	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		2006	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		2007	{
		2008	move_apply (tmp, op, originator);
		2009
		2010	if (op->destroyed ())
		2011	return 1;
		2012
		2013	/* what the person/creature stepped onto has moved the object
		2014	* someplace new. Don't process any further - if we did,
		2015	* have a feeling strange problems would result.
		2016	*/
		2017	if (op->map != m || op->x != x || op->y != y)
		2018	return 0;
		2019	}
		2020	}
		2021
		2022	return 0;
2100	}	2023	}
2101		2024
2102	/*	2025	/*
2103	* present_arch(arch, map, x, y) searches for any objects with	2026	* present_arch(arch, map, x, y) searches for any objects with
2104	* a matching archetype at the given map and coordinates.	2027	* a matching archetype at the given map and coordinates.
2105	* The first matching object is returned, or NULL if none.	2028	* The first matching object is returned, or NULL if none.
2106	*/	2029	*/
2107		2030
		2031	object *
2108	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	2032	present_arch (const archetype *at, mapstruct *m, int x, int y)
		2033	{
2109	object *tmp;	2034	object *
		2035	tmp;
		2036
2110	if(m==NULL || out_of_map(m,x,y)) {	2037	if (m == NULL || out_of_map (m, x, y))
		2038	{
2111	LOG(llevError,"Present_arch called outside map.\n");	2039	LOG (llevError, "Present_arch called outside map.\n");
2112	return NULL;	2040	return NULL;
2113	}	2041	}
2114	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	2042	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2115	if(tmp->arch == at)	2043	if (tmp->arch == at)
2116	return tmp;	2044	return tmp;
2117	return NULL;	2045	return NULL;
2118	}	2046	}
2119		2047
2120	/*	2048	/*
2121	* present(type, map, x, y) searches for any objects with	2049	* present(type, map, x, y) searches for any objects with
2122	* a matching type variable at the given map and coordinates.	2050	* a matching type variable at the given map and coordinates.
2123	* The first matching object is returned, or NULL if none.	2051	* The first matching object is returned, or NULL if none.
2124	*/	2052	*/
2125		2053
		2054	object *
2126	object *present(unsigned char type,mapstruct *m, int x,int y) {	2055	present (unsigned char type, mapstruct *m, int x, int y)
		2056	{
2127	object *tmp;	2057	object *
		2058	tmp;
		2059
2128	if(out_of_map(m,x,y)) {	2060	if (out_of_map (m, x, y))
		2061	{
2129	LOG(llevError,"Present called outside map.\n");	2062	LOG (llevError, "Present called outside map.\n");
2130	return NULL;	2063	return NULL;
2131	}	2064	}
2132	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	2065	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2133	if(tmp->type==type)	2066	if (tmp->type == type)
2134	return tmp;	2067	return tmp;
2135	return NULL;	2068	return NULL;
2136	}	2069	}
2137		2070
2138	/*	2071	/*
2139	* present_in_ob(type, object) searches for any objects with	2072	* present_in_ob(type, object) searches for any objects with
2140	* a matching type variable in the inventory of the given object.	2073	* a matching type variable in the inventory of the given object.
2141	* The first matching object is returned, or NULL if none.	2074	* The first matching object is returned, or NULL if none.
2142	*/	2075	*/
2143		2076
		2077	object *
2144	object *present_in_ob(unsigned char type, const object *op) {	2078	present_in_ob (unsigned char type, const object *op)
		2079	{
2145	object *tmp;	2080	object *
		2081	tmp;
		2082
2146	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2083	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2147	if(tmp->type==type)	2084	if (tmp->type == type)
2148	return tmp;	2085	return tmp;
2149	return NULL;	2086	return NULL;
2150	}	2087	}
2151		2088
2152	/*	2089	/*
…		…
2162	* the object name, not the archetype name. this is so that the	2099	* the object name, not the archetype name. this is so that the
2163	* spell code can use one object type (force), but change it's name	2100	* spell code can use one object type (force), but change it's name
2164	* to be unique.	2101	* to be unique.
2165	*/	2102	*/
2166		2103
		2104	object *
2167	object *present_in_ob_by_name(int type, const char *str, const object *op) {	2105	present_in_ob_by_name (int type, const char *str, const object *op)
		2106	{
2168	object *tmp;	2107	object *
		2108	tmp;
2169		2109
2170	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	2110	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2111	{
2171	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	2112	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2172	return tmp;	2113	return tmp;
2173	}	2114	}
2174	return NULL;	2115	return NULL;
2175	}	2116	}
2176		2117
2177	/*	2118	/*
2178	* present_arch_in_ob(archetype, object) searches for any objects with	2119	* present_arch_in_ob(archetype, object) searches for any objects with
2179	* a matching archetype in the inventory of the given object.	2120	* a matching archetype in the inventory of the given object.
2180	* The first matching object is returned, or NULL if none.	2121	* The first matching object is returned, or NULL if none.
2181	*/	2122	*/
2182		2123
		2124	object *
2183	object *present_arch_in_ob(const archetype *at, const object *op) {	2125	present_arch_in_ob (const archetype *at, const object *op)
		2126	{
2184	object *tmp;	2127	object *
		2128	tmp;
		2129
2185	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2130	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2186	if( tmp->arch == at)	2131	if (tmp->arch == at)
2187	return tmp;	2132	return tmp;
2188	return NULL;	2133	return NULL;
2189	}	2134	}
2190		2135
2191	/*	2136	/*
2192	* activate recursively a flag on an object inventory	2137	* activate recursively a flag on an object inventory
2193	*/	2138	*/
		2139	void
2194	void flag_inv(object*op, int flag){	2140	flag_inv (object *op, int flag)
		2141	{
2195	object *tmp;	2142	object *
		2143	tmp;
		2144
2196	if(op->inv)	2145	if (op->inv)
2197	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2146	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2147	{
2198	SET_FLAG(tmp, flag);	2148	SET_FLAG (tmp, flag);
2199	flag_inv(tmp,flag);	2149	flag_inv (tmp, flag);
2200	}	2150	}
2201	}/*	2151	} /*
2202	* desactivate recursively a flag on an object inventory	2152	* desactivate recursively a flag on an object inventory
2203	*/	2153	*/
		2154	void
2204	void unflag_inv(object*op, int flag){	2155	unflag_inv (object *op, int flag)
		2156	{
2205	object *tmp;	2157	object *
		2158	tmp;
		2159
2206	if(op->inv)	2160	if (op->inv)
2207	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2161	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2162	{
2208	CLEAR_FLAG(tmp, flag);	2163	CLEAR_FLAG (tmp, flag);
2209	unflag_inv(tmp,flag);	2164	unflag_inv (tmp, flag);
2210	}	2165	}
2211	}	2166	}
2212		2167
2213	/*	2168	/*
2214	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	2169	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2215	* all it's inventory (recursively).	2170	* all it's inventory (recursively).
2216	* If checksums are used, a player will get set_cheat called for	2171	* If checksums are used, a player will get set_cheat called for
2217	* him/her-self and all object carried by a call to this function.	2172	* him/her-self and all object carried by a call to this function.
2218	*/	2173	*/
2219		2174
		2175	void
2220	void set_cheat(object *op) {	2176	set_cheat (object *op)
		2177	{
2221	SET_FLAG(op, FLAG_WAS_WIZ);	2178	SET_FLAG (op, FLAG_WAS_WIZ);
2222	flag_inv(op, FLAG_WAS_WIZ);	2179	flag_inv (op, FLAG_WAS_WIZ);
2223	}	2180	}
2224		2181
2225	/*	2182	/*
2226	* find_free_spot(object, map, x, y, start, stop) will search for	2183	* find_free_spot(object, map, x, y, start, stop) will search for
2227	* a spot at the given map and coordinates which will be able to contain	2184	* a spot at the given map and coordinates which will be able to contain
…		…
2242	* to know if the space in question will block the object. We can't use	2199	* to know if the space in question will block the object. We can't use
2243	* the archetype because that isn't correct if the monster has been	2200	* the archetype because that isn't correct if the monster has been
2244	* customized, changed states, etc.	2201	* customized, changed states, etc.
2245	*/	2202	*/
2246		2203
		2204	int
2247	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2205	find_free_spot (const object *ob, mapstruct *m, int x, int y, int start, int stop)
		2206	{
		2207	int
		2208	i,
2248	int i,index=0, flag;	2209	index = 0, flag;
		2210	static int
2249	static int altern[SIZEOFFREE];	2211	altern[SIZEOFFREE];
2250		2212
2251	for(i=start;i<stop;i++) {	2213	for (i = start; i < stop; i++)
		2214	{
2252	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2215	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2253	if(!flag)	2216	if (!flag)
2254	altern[index++]=i;	2217	altern[index++] = i;
2255		2218
2256	/* Basically, if we find a wall on a space, we cut down the search size.	2219	/* Basically, if we find a wall on a space, we cut down the search size.
2257	* In this way, we won't return spaces that are on another side of a wall.	2220	* In this way, we won't return spaces that are on another side of a wall.
2258	* This mostly work, but it cuts down the search size in all directions -	2221	* This mostly work, but it cuts down the search size in all directions -
2259	* if the space being examined only has a wall to the north and empty	2222	* if the space being examined only has a wall to the north and empty
2260	* spaces in all the other directions, this will reduce the search space	2223	* spaces in all the other directions, this will reduce the search space
2261	* to only the spaces immediately surrounding the target area, and	2224	* to only the spaces immediately surrounding the target area, and
2262	* won't look 2 spaces south of the target space.	2225	* won't look 2 spaces south of the target space.
2263	*/	2226	*/
2264	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2227	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)
2265	stop=maxfree[i];	2228	stop = maxfree[i];
2266	}	2229	}
2267	if(!index) return -1;	2230	if (!index)
		2231	return -1;
2268	return altern[RANDOM()%index];	2232	return altern[RANDOM () % index];
2269	}	2233	}
2270		2234
2271	/*	2235	/*
2272	* find_first_free_spot(archetype, mapstruct, x, y) works like	2236	* find_first_free_spot(archetype, mapstruct, x, y) works like
2273	* find_free_spot(), but it will search max number of squares.	2237	* find_free_spot(), but it will search max number of squares.
2274	* But it will return the first available spot, not a random choice.	2238	* But it will return the first available spot, not a random choice.
2275	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2239	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2276	*/	2240	*/
2277		2241
		2242	int
2278	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2243	find_first_free_spot (const object *ob, mapstruct *m, int x, int y)
		2244	{
		2245	int
2279	int i;	2246	i;
		2247
2280	for(i=0;i<SIZEOFFREE;i++) {	2248	for (i = 0; i < SIZEOFFREE; i++)
		2249	{
2281	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2250	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2282	return i;	2251	return i;
2283	}	2252	}
2284	return -1;	2253	return -1;
2285	}	2254	}
2286		2255
2287	/*	2256	/*
2288	* The function permute(arr, begin, end) randomly reorders the array	2257	* The function permute(arr, begin, end) randomly reorders the array
2289	* arr[begin..end-1].	2258	* arr[begin..end-1].
2290	*/	2259	*/
		2260	static void
2291	static void permute(int *arr, int begin, int end)	2261	permute (int *arr, int begin, int end)
2292	{	2262	{
2293	int i, j, tmp, len;	2263	int
		2264	i,
		2265	j,
		2266	tmp,
		2267	len;
2294		2268
2295	len = end-begin;	2269	len = end - begin;
2296	for(i = begin; i < end; i++)	2270	for (i = begin; i < end; i++)
2297	{	2271	{
2298	j = begin+RANDOM()%len;	2272	j = begin + RANDOM () % len;
2299		2273
2300	tmp = arr[i];	2274	tmp = arr[i];
2301	arr[i] = arr[j];	2275	arr[i] = arr[j];
2302	arr[j] = tmp;	2276	arr[j] = tmp;
2303	}	2277	}
2304	}	2278	}
2305		2279
2306	/* new function to make monster searching more efficient, and effective!	2280	/* new function to make monster searching more efficient, and effective!
2307	* This basically returns a randomized array (in the passed pointer) of	2281	* This basically returns a randomized array (in the passed pointer) of
2308	* the spaces to find monsters. In this way, it won't always look for	2282	* the spaces to find monsters. In this way, it won't always look for
2309	* monsters to the north first. However, the size of the array passed	2283	* monsters to the north first. However, the size of the array passed
2310	* covers all the spaces, so within that size, all the spaces within	2284	* covers all the spaces, so within that size, all the spaces within
2311	* the 3x3 area will be searched, just not in a predictable order.	2285	* the 3x3 area will be searched, just not in a predictable order.
2312	*/	2286	*/
		2287	void
2313	void get_search_arr(int *search_arr)	2288	get_search_arr (int *search_arr)
2314	{	2289	{
		2290	int
2315	int i;	2291	i;
2316		2292
2317	for(i = 0; i < SIZEOFFREE; i++)	2293	for (i = 0; i < SIZEOFFREE; i++)
2318	{	2294	{
2319	search_arr[i] = i;	2295	search_arr[i] = i;
2320	}	2296	}
2321		2297
2322	permute(search_arr, 1, SIZEOFFREE1+1);	2298	permute (search_arr, 1, SIZEOFFREE1 + 1);
2323	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2299	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2324	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2300	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2325	}	2301	}
2326		2302
2327	/*	2303	/*
2328	* find_dir(map, x, y, exclude) will search some close squares in the	2304	* find_dir(map, x, y, exclude) will search some close squares in the
2329	* given map at the given coordinates for live objects.	2305	* given map at the given coordinates for live objects.
…		…
2335	* is actually want is going to try and move there. We need this info	2311	* is actually want is going to try and move there. We need this info
2336	* because we have to know what movement the thing looking to move	2312	* because we have to know what movement the thing looking to move
2337	* there is capable of.	2313	* there is capable of.
2338	*/	2314	*/
2339		2315
		2316	int
2340	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2317	find_dir (mapstruct *m, int x, int y, object *exclude)
		2318	{
		2319	int
		2320	i,
2341	int i,max=SIZEOFFREE, mflags;	2321	max = SIZEOFFREE, mflags;
		2322
2342	sint16 nx, ny;	2323	sint16 nx, ny;
2343	object *tmp;	2324	object *
		2325	tmp;
2344	mapstruct *mp;	2326	mapstruct *
		2327	mp;
		2328
2345	MoveType blocked, move_type;	2329	MoveType blocked, move_type;
2346		2330
2347	if (exclude && exclude->head) {	2331	if (exclude && exclude->head)
		2332	{
2348	exclude = exclude->head;	2333	exclude = exclude->head;
2349	move_type = exclude->move_type;	2334	move_type = exclude->move_type;
2350	} else {	2335	}
		2336	else
		2337	{
2351	/* If we don't have anything, presume it can use all movement types. */	2338	/* If we don't have anything, presume it can use all movement types. */
2352	move_type=MOVE_ALL;	2339	move_type = MOVE_ALL;
		2340	}
		2341
		2342	for (i = 1; i < max; i++)
2353	}	2343	{
2354		2344	mp = m;
2355	for(i=1;i<max;i++) {
2356	mp = m;
2357	nx = x + freearr_x[i];	2345	nx = x + freearr_x[i];
2358	ny = y + freearr_y[i];	2346	ny = y + freearr_y[i];
2359		2347
2360	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2348	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
2361	if (mflags & P_OUT_OF_MAP) {	2349	if (mflags & P_OUT_OF_MAP)
		2350	{
2362	max = maxfree[i];	2351	max = maxfree[i];
2363	} else {	2352	}
		2353	else
		2354	{
2364	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2355	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
2365		2356
2366	if ((move_type & blocked) == move_type) {	2357	if ((move_type & blocked) == move_type)
2367	max=maxfree[i];	2358	{
		2359	max = maxfree[i];
		2360	}
2368	} else if (mflags & P_IS_ALIVE) {	2361	else if (mflags & P_IS_ALIVE)
		2362	{
2369	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2363	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2370	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2364	{
2371	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2365	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2372	break;	2366	{
2373	}	2367	break;
2374	}	2368	}
2375	if(tmp) {	2369	}
2376	return freedir[i];	2370	if (tmp)
2377	}	2371	{
		2372	return freedir[i];
		2373	}
		2374	}
		2375	}
2378	}	2376	}
2379	}
2380	}
2381	return 0;	2377	return 0;
2382	}	2378	}
2383		2379
2384	/*	2380	/*
2385	* distance(object 1, object 2) will return the square of the	2381	* distance(object 1, object 2) will return the square of the
2386	* distance between the two given objects.	2382	* distance between the two given objects.
2387	*/	2383	*/
2388		2384
		2385	int
2389	int distance(const object *ob1, const object *ob2) {	2386	distance (const object *ob1, const object *ob2)
		2387	{
2390	int i;	2388	int
2391	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2389	i;
2392	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2390
		2391	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2393	return i;	2392	return i;
2394	}	2393	}
2395		2394
2396	/*	2395	/*
2397	* find_dir_2(delta-x,delta-y) will return a direction in which	2396	* find_dir_2(delta-x,delta-y) will return a direction in which
2398	* an object which has subtracted the x and y coordinates of another	2397	* an object which has subtracted the x and y coordinates of another
2399	* object, needs to travel toward it.	2398	* object, needs to travel toward it.
2400	*/	2399	*/
2401		2400
		2401	int
2402	int find_dir_2(int x, int y) {	2402	find_dir_2 (int x, int y)
		2403	{
2403	int q;	2404	int
		2405	q;
2404		2406
2405	if(y)	2407	if (y)
2406	q=x*100/y;	2408	q = x * 100 / y;
2407	else if (x)	2409	else if (x)
2408	q= -300*x;	2410	q = -300 * x;
2409	else	2411	else
2410	return 0;	2412	return 0;
2411		2413
2412	if(y>0) {	2414	if (y > 0)
		2415	{
2413	if(q < -242)	2416	if (q < -242)
2414	return 3 ;	2417	return 3;
2415	if (q < -41)	2418	if (q < -41)
2416	return 2 ;	2419	return 2;
2417	if (q < 41)	2420	if (q < 41)
2418	return 1 ;	2421	return 1;
2419	if (q < 242)	2422	if (q < 242)
2420	return 8 ;	2423	return 8;
2421	return 7 ;	2424	return 7;
2422	}	2425	}
2423		2426
2424	if (q < -242)	2427	if (q < -242)
2425	return 7 ;	2428	return 7;
2426	if (q < -41)	2429	if (q < -41)
2427	return 6 ;	2430	return 6;
2428	if (q < 41)	2431	if (q < 41)
2429	return 5 ;	2432	return 5;
2430	if (q < 242)	2433	if (q < 242)
2431	return 4 ;	2434	return 4;
2432		2435
2433	return 3 ;	2436	return 3;
2434	}	2437	}
2435		2438
2436	/*	2439	/*
2437	* absdir(int): Returns a number between 1 and 8, which represent	2440	* absdir(int): Returns a number between 1 and 8, which represent
2438	* the "absolute" direction of a number (it actually takes care of	2441	* the "absolute" direction of a number (it actually takes care of
2439	* "overflow" in previous calculations of a direction).	2442	* "overflow" in previous calculations of a direction).
2440	*/	2443	*/
2441		2444
		2445	int
2442	int absdir(int d) {	2446	absdir (int d)
2443	while(d<1) d+=8;	2447	{
2444	while(d>8) d-=8;	2448	while (d < 1)
		2449	d += 8;
		2450	while (d > 8)
		2451	d -= 8;
2445	return d;	2452	return d;
2446	}	2453	}
2447		2454
2448	/*	2455	/*
2449	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2456	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2450	* between two directions (which are expected to be absolute (see absdir())	2457	* between two directions (which are expected to be absolute (see absdir())
2451	*/	2458	*/
2452		2459
		2460	int
2453	int dirdiff(int dir1, int dir2) {	2461	dirdiff (int dir1, int dir2)
		2462	{
2454	int d;	2463	int
		2464	d;
		2465
2455	d = abs(dir1 - dir2);	2466	d = abs (dir1 - dir2);
2456	if(d>4)	2467	if (d > 4)
2457	d = 8 - d;	2468	d = 8 - d;
2458	return d;	2469	return d;
2459	}	2470	}
2460		2471
2461	/* peterm:	2472	/* peterm:
…		…
2466	* direction 4, 14, or 16 to get back to where we are.	2477	* direction 4, 14, or 16 to get back to where we are.
2467	* Moved from spell_util.c to object.c with the other related direction	2478	* Moved from spell_util.c to object.c with the other related direction
2468	* functions.	2479	* functions.
2469	*/	2480	*/
2470		2481
		2482	int
2471	int reduction_dir[SIZEOFFREE][3] = {	2483	reduction_dir[SIZEOFFREE][3] = {
2472	{0,0,0}, /* 0 */	2484	{0, 0, 0}, /* 0 */
2473	{0,0,0}, /* 1 */	2485	{0, 0, 0}, /* 1 */
2474	{0,0,0}, /* 2 */	2486	{0, 0, 0}, /* 2 */
2475	{0,0,0}, /* 3 */	2487	{0, 0, 0}, /* 3 */
2476	{0,0,0}, /* 4 */	2488	{0, 0, 0}, /* 4 */
2477	{0,0,0}, /* 5 */	2489	{0, 0, 0}, /* 5 */
2478	{0,0,0}, /* 6 */	2490	{0, 0, 0}, /* 6 */
2479	{0,0,0}, /* 7 */	2491	{0, 0, 0}, /* 7 */
2480	{0,0,0}, /* 8 */	2492	{0, 0, 0}, /* 8 */
2481	{8,1,2}, /* 9 */	2493	{8, 1, 2}, /* 9 */
2482	{1,2,-1}, /* 10 */	2494	{1, 2, -1}, /* 10 */
2483	{2,10,12}, /* 11 */	2495	{2, 10, 12}, /* 11 */
2484	{2,3,-1}, /* 12 */	2496	{2, 3, -1}, /* 12 */
2485	{2,3,4}, /* 13 */	2497	{2, 3, 4}, /* 13 */
2486	{3,4,-1}, /* 14 */	2498	{3, 4, -1}, /* 14 */
2487	{4,14,16}, /* 15 */	2499	{4, 14, 16}, /* 15 */
2488	{5,4,-1}, /* 16 */	2500	{5, 4, -1}, /* 16 */
2489	{4,5,6}, /* 17 */	2501	{4, 5, 6}, /* 17 */
2490	{6,5,-1}, /* 18 */	2502	{6, 5, -1}, /* 18 */
2491	{6,20,18}, /* 19 */	2503	{6, 20, 18}, /* 19 */
2492	{7,6,-1}, /* 20 */	2504	{7, 6, -1}, /* 20 */
2493	{6,7,8}, /* 21 */	2505	{6, 7, 8}, /* 21 */
2494	{7,8,-1}, /* 22 */	2506	{7, 8, -1}, /* 22 */
2495	{8,22,24}, /* 23 */	2507	{8, 22, 24}, /* 23 */
2496	{8,1,-1}, /* 24 */	2508	{8, 1, -1}, /* 24 */
2497	{24,9,10}, /* 25 */	2509	{24, 9, 10}, /* 25 */
2498	{9,10,-1}, /* 26 */	2510	{9, 10, -1}, /* 26 */
2499	{10,11,-1}, /* 27 */	2511	{10, 11, -1}, /* 27 */
2500	{27,11,29}, /* 28 */	2512	{27, 11, 29}, /* 28 */
2501	{11,12,-1}, /* 29 */	2513	{11, 12, -1}, /* 29 */
2502	{12,13,-1}, /* 30 */	2514	{12, 13, -1}, /* 30 */
2503	{12,13,14}, /* 31 */	2515	{12, 13, 14}, /* 31 */
2504	{13,14,-1}, /* 32 */	2516	{13, 14, -1}, /* 32 */
2505	{14,15,-1}, /* 33 */	2517	{14, 15, -1}, /* 33 */
2506	{33,15,35}, /* 34 */	2518	{33, 15, 35}, /* 34 */
2507	{16,15,-1}, /* 35 */	2519	{16, 15, -1}, /* 35 */
2508	{17,16,-1}, /* 36 */	2520	{17, 16, -1}, /* 36 */
2509	{18,17,16}, /* 37 */	2521	{18, 17, 16}, /* 37 */
2510	{18,17,-1}, /* 38 */	2522	{18, 17, -1}, /* 38 */
2511	{18,19,-1}, /* 39 */	2523	{18, 19, -1}, /* 39 */
2512	{41,19,39}, /* 40 */	2524	{41, 19, 39}, /* 40 */
2513	{19,20,-1}, /* 41 */	2525	{19, 20, -1}, /* 41 */
2514	{20,21,-1}, /* 42 */	2526	{20, 21, -1}, /* 42 */
2515	{20,21,22}, /* 43 */	2527	{20, 21, 22}, /* 43 */
2516	{21,22,-1}, /* 44 */	2528	{21, 22, -1}, /* 44 */
2517	{23,22,-1}, /* 45 */	2529	{23, 22, -1}, /* 45 */
2518	{45,47,23}, /* 46 */	2530	{45, 47, 23}, /* 46 */
2519	{23,24,-1}, /* 47 */	2531	{23, 24, -1}, /* 47 */
2520	{24,9,-1}}; /* 48 */	2532	{24, 9, -1}
		2533	}; /* 48 */
2521		2534
2522	/* Recursive routine to step back and see if we can	2535	/* Recursive routine to step back and see if we can
2523	* find a path to that monster that we found. If not,	2536	* find a path to that monster that we found. If not,
2524	* we don't bother going toward it. Returns 1 if we	2537	* we don't bother going toward it. Returns 1 if we
2525	* can see a direct way to get it	2538	* can see a direct way to get it
2526	* Modified to be map tile aware -.MSW	2539	* Modified to be map tile aware -.MSW
2527	*/	2540	*/
2528
2529		2541
		2542
		2543	int
2530	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2544	can_see_monsterP (mapstruct *m, int x, int y, int dir)
		2545	{
2531	sint16 dx, dy;	2546	sint16 dx, dy;
		2547	int
2532	int mflags;	2548	mflags;
2533		2549
		2550	if (dir < 0)
2534	if(dir<0) return 0; /* exit condition: invalid direction */	2551	return 0; /* exit condition: invalid direction */
2535		2552
2536	dx = x + freearr_x[dir];	2553	dx = x + freearr_x[dir];
2537	dy = y + freearr_y[dir];	2554	dy = y + freearr_y[dir];
2538		2555
2539	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2556	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2540		2557
2541	/* This functional arguably was incorrect before - it was	2558	/* This functional arguably was incorrect before - it was
2542	* checking for P_WALL - that was basically seeing if	2559	* checking for P_WALL - that was basically seeing if
2543	* we could move to the monster - this is being more	2560	* we could move to the monster - this is being more
2544	* literal on if we can see it. To know if we can actually	2561	* literal on if we can see it. To know if we can actually
2545	* move to the monster, we'd need the monster passed in or	2562	* move to the monster, we'd need the monster passed in or
2546	* at least its move type.	2563	* at least its move type.
2547	*/	2564	*/
2548	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2565	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2566	return 0;
2549		2567
2550	/* yes, can see. */	2568	/* yes, can see. */
2551	if(dir < 9) return 1;	2569	if (dir < 9)
		2570	return 1;
2552	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2571	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |
2553	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2572	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2554	can_see_monsterP(m,x,y, reduction_dir[dir][2]);
2555	}	2573	}
2556		2574
2557		2575
2558		2576
2559	/*	2577	/*
2560	* can_pick(picker, item): finds out if an object is possible to be	2578	* can_pick(picker, item): finds out if an object is possible to be
2561	* picked up by the picker. Returnes 1 if it can be	2579	* picked up by the picker. Returnes 1 if it can be
2562	* picked up, otherwise 0.	2580	* picked up, otherwise 0.
2563	*	2581	*
…		…
2565	* core dumps if they do.	2583	* core dumps if they do.
2566	*	2584	*
2567	* Add a check so we can't pick up invisible objects (0.93.8)	2585	* Add a check so we can't pick up invisible objects (0.93.8)
2568	*/	2586	*/
2569		2587
		2588	int
2570	int can_pick(const object *who, const object *item) {	2589	can_pick (const object *who, const object *item)
		2590	{
2571	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2591	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2572	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2592	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2573	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2593	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2574	(who->type==PLAYER||item->weight<who->weight/3));
2575	}	2594	}
2576		2595
2577		2596
2578	/*	2597	/*
2579	* create clone from object to another	2598	* create clone from object to another
2580	*/	2599	*/
		2600	object *
2581	object *object_create_clone (object *asrc) {	2601	object_create_clone (object *asrc)
		2602	{
		2603	object *
2582	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2604	dst = NULL, *tmp, *src, *part, *prev, *item;
2583		2605
		2606	if (!asrc)
2584	if(!asrc) return NULL;	2607	return NULL;
2585	src = asrc;	2608	src = asrc;
2586	if(src->head)	2609	if (src->head)
2587	src = src->head;	2610	src = src->head;
2588		2611
2589	prev = NULL;	2612	prev = NULL;
2590	for(part = src; part; part = part->more) {	2613	for (part = src; part; part = part->more)
		2614	{
2591	tmp = get_object();	2615	tmp = get_object ();
2592	copy_object(part,tmp);	2616	copy_object (part, tmp);
2593	tmp->x -= src->x;	2617	tmp->x -= src->x;
2594	tmp->y -= src->y;	2618	tmp->y -= src->y;
2595	if(!part->head) {	2619	if (!part->head)
		2620	{
2596	dst = tmp;	2621	dst = tmp;
2597	tmp->head = NULL;	2622	tmp->head = NULL;
		2623	}
2598	} else {	2624	else
		2625	{
2599	tmp->head = dst;	2626	tmp->head = dst;
2600	}	2627	}
2601	tmp->more = NULL;	2628	tmp->more = NULL;
2602	if(prev)	2629	if (prev)
2603	prev->more = tmp;	2630	prev->more = tmp;
2604	prev = tmp;	2631	prev = tmp;
2605	}	2632	}
2606	/*** copy inventory ***/	2633
2607	for(item = src->inv; item; item = item->below) {	2634	for (item = src->inv; item; item = item->below)
2608	(void) insert_ob_in_ob(object_create_clone(item),dst);	2635	insert_ob_in_ob (object_create_clone (item), dst);
2609	}
2610		2636
2611	return dst;	2637	return dst;
2612	}
2613
2614	/* return true if the object was destroyed, 0 otherwise */
2615	int was_destroyed (const object *op, tag_t old_tag)
2616	{
2617	/* checking for FLAG_FREED isn't necessary, but makes this function more
2618	* robust */
2619	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2620	}	2638	}
2621		2639
2622	/* GROS - Creates an object using a string representing its content. */	2640	/* GROS - Creates an object using a string representing its content. */
2623	/* Basically, we save the content of the string to a temp file, then call */	2641	/* Basically, we save the content of the string to a temp file, then call */
2624	/* load_object on it. I admit it is a highly inefficient way to make things, */	2642	/* load_object on it. I admit it is a highly inefficient way to make things, */
2625	/* but it was simple to make and allows reusing the load_object function. */	2643	/* but it was simple to make and allows reusing the load_object function. */
2626	/* Remember not to use load_object_str in a time-critical situation. */	2644	/* Remember not to use load_object_str in a time-critical situation. */
2627	/* Also remember that multiparts objects are not supported for now. */	2645	/* Also remember that multiparts objects are not supported for now. */
2628		2646
		2647	object *
2629	object* load_object_str(const char *obstr)	2648	load_object_str (const char *obstr)
2630	{	2649	{
2631	object *op;	2650	object *op;
2632	FILE *tempfile;
2633	char filename[MAX_BUF];	2651	char filename[MAX_BUF];
		2652
2634	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2653	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
		2654
2635	tempfile=fopen(filename,"w");	2655	FILE *tempfile = fopen (filename, "w");
		2656
2636	if (tempfile == NULL)	2657	if (tempfile == NULL)
2637	{	2658	{
2638	LOG(llevError,"Error - Unable to access load object temp file\n");	2659	LOG (llevError, "Error - Unable to access load object temp file\n");
2639	return NULL;	2660	return NULL;
2640	};	2661	}
		2662
2641	fprintf(tempfile,obstr);	2663	fprintf (tempfile, obstr);
2642	fclose(tempfile);	2664	fclose (tempfile);
2643		2665
2644	op=get_object();	2666	op = get_object ();
2645		2667
2646	tempfile=fopen(filename,"r");	2668	object_thawer thawer (filename);
2647	if (tempfile == NULL)	2669
2648	{	2670	if (thawer)
2649	LOG(llevError,"Error - Unable to read object temp file\n");	2671	load_object (thawer, op, 0);
2650	return NULL;	2672
2651	};
2652	load_object(tempfile,op,LO_NEWFILE,0);
2653	LOG(llevDebug," load str completed, object=%s\n",op->name);	2673	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2654	CLEAR_FLAG(op,FLAG_REMOVED);	2674	CLEAR_FLAG (op, FLAG_REMOVED);
2655	fclose(tempfile);	2675
2656	return op;	2676	return op;
2657	}	2677	}
2658		2678
2659	/* This returns the first object in who's inventory that	2679	/* This returns the first object in who's inventory that
2660	* has the same type and subtype match.	2680	* has the same type and subtype match.
2661	* returns NULL if no match.	2681	* returns NULL if no match.
2662	*/	2682	*/
		2683	object *
2663	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2684	find_obj_by_type_subtype (const object *who, int type, int subtype)
2664	{	2685	{
2665	object *tmp;	2686	object *tmp;
2666		2687
2667	for (tmp=who->inv; tmp; tmp=tmp->below)	2688	for (tmp = who->inv; tmp; tmp = tmp->below)
2668	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2689	if (tmp->type == type && tmp->subtype == subtype)
		2690	return tmp;
2669		2691
2670	return NULL;	2692	return NULL;
2671	}	2693	}
2672		2694
2673	/* If ob has a field named key, return the link from the list,	2695	/* If ob has a field named key, return the link from the list,
2674	* otherwise return NULL.	2696	* otherwise return NULL.
2675	*	2697	*
2676	* key must be a passed in shared string - otherwise, this won't	2698	* key must be a passed in shared string - otherwise, this won't
2677	* do the desired thing.	2699	* do the desired thing.
2678	*/	2700	*/
		2701	key_value *
2679	key_value * get_ob_key_link(const object * ob, const char * key) {	2702	get_ob_key_link (const object *ob, const char *key)
		2703	{
2680	key_value * link;	2704	key_value *link;
2681		2705
2682	for (link = ob->key_values; link != NULL; link = link->next) {	2706	for (link = ob->key_values; link != NULL; link = link->next)
2683	if (link->key == key) {	2707	if (link->key == key)
2684	return link;	2708	return link;
2685	}	2709
2686	}
2687
2688	return NULL;	2710	return NULL;
2689	}	2711	}
2690		2712
2691	/*	2713	/*
2692	* Returns the value of op has an extra_field for key, or NULL.	2714	* Returns the value of op has an extra_field for key, or NULL.
2693	*	2715	*
2694	* The argument doesn't need to be a shared string.	2716	* The argument doesn't need to be a shared string.
2695	*	2717	*
2696	* The returned string is shared.	2718	* The returned string is shared.
2697	*/	2719	*/
		2720	const char *
2698	const char * get_ob_key_value(const object * op, const char * const key) {	2721	get_ob_key_value (const object *op, const char *const key)
		2722	{
2699	key_value * link;	2723	key_value *link;
2700	const char * canonical_key;	2724	shstr_cmp canonical_key (key);
		2725
		2726	if (!canonical_key)
2701		2727	{
2702	canonical_key = find_string(key);
2703
2704	if (canonical_key == NULL) {
2705	/* 1. There being a field named key on any object	2728	/* 1. There being a field named key on any object
2706	* implies there'd be a shared string to find.	2729	* implies there'd be a shared string to find.
2707	* 2. Since there isn't, no object has this field.	2730	* 2. Since there isn't, no object has this field.
2708	* 3. Therefore, *this* object doesn't have this field.	2731	* 3. Therefore, *this* object doesn't have this field.
2709	*/	2732	*/
2710	return NULL;	2733	return 0;
2711	}	2734	}
2712		2735
2713	/* This is copied from get_ob_key_link() above -	2736	/* This is copied from get_ob_key_link() above -
2714	* only 4 lines, and saves the function call overhead.	2737	* only 4 lines, and saves the function call overhead.
2715	*/	2738	*/
2716	for (link = op->key_values; link != NULL; link = link->next) {	2739	for (link = op->key_values; link; link = link->next)
2717	if (link->key == canonical_key) {	2740	if (link->key == canonical_key)
2718	return link->value;	2741	return link->value;
2719	}	2742
2720	}	2743	return 0;
2721	return NULL;
2722	}	2744	}
2723		2745
2724		2746
2725	/*	2747	/*
2726	* Updates the canonical_key in op to value.	2748	* Updates the canonical_key in op to value.
…		…
2730	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2752	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2731	* keys.	2753	* keys.
2732	*	2754	*
2733	* Returns TRUE on success.	2755	* Returns TRUE on success.
2734	*/	2756	*/
		2757	int
2735	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2758	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2759	{
		2760	key_value *
2736	key_value * field = NULL, *last=NULL;	2761	field = NULL, *last = NULL;
2737		2762
2738	for (field=op->key_values; field != NULL; field=field->next) {	2763	for (field = op->key_values; field != NULL; field = field->next)
2739	if (field->key != canonical_key) {
2740	last = field;
2741	continue;
2742	}
2743		2764	{
2744	if (field->value) FREE_AND_CLEAR_STR(field->value);	2765	if (field->key != canonical_key)
2745	if (value)	2766	{
2746	field->value = add_string(value);	2767	last = field;
2747	else {	2768	continue;
		2769	}
		2770
		2771	if (value)
		2772	field->value = value;
		2773	else
		2774	{
2748	/* Basically, if the archetype has this key set,	2775	/* Basically, if the archetype has this key set,
2749	* we need to store the null value so when we save	2776	* we need to store the null value so when we save
2750	* it, we save the empty value so that when we load,	2777	* it, we save the empty value so that when we load,
2751	* we get this value back again.	2778	* we get this value back again.
2752	*/	2779	*/
2753	if (get_ob_key_link(&op->arch->clone, canonical_key))	2780	if (get_ob_key_link (&op->arch->clone, canonical_key))
2754	field->value = NULL;	2781	field->value = 0;
2755	else {	2782	else
2756	/* Delete this link */	2783	{
2757	if (field->key) FREE_AND_CLEAR_STR(field->key);	2784	if (last)
2758	if (field->value) FREE_AND_CLEAR_STR(field->value);	2785	last->next = field->next;
2759	if (last) last->next = field->next;	2786	else
2760	else op->key_values = field->next;	2787	op->key_values = field->next;
2761	free(field);	2788
2762	}	2789	delete field;
2763	}	2790	}
		2791	}
2764	return TRUE;	2792	return TRUE;
2765	}	2793	}
2766	/* IF we get here, key doesn't exist */	2794	/* IF we get here, key doesn't exist */
2767		2795
2768	/* No field, we'll have to add it. */	2796	/* No field, we'll have to add it. */
		2797
		2798	if (!add_key)
2769		2799	{
2770	if (!add_key) {
2771	return FALSE;	2800	return FALSE;
2772	}	2801	}
2773	/* There isn't any good reason to store a null	2802	/* There isn't any good reason to store a null
2774	* value in the key/value list. If the archetype has	2803	* value in the key/value list. If the archetype has
2775	* this key, then we should also have it, so shouldn't	2804	* this key, then we should also have it, so shouldn't
2776	* be here. If user wants to store empty strings,	2805	* be here. If user wants to store empty strings,
2777	* should pass in ""	2806	* should pass in ""
2778	*/	2807	*/
2779	if (value == NULL) return TRUE;	2808	if (value == NULL)
2780
2781	field = (key_value *) malloc(sizeof(key_value));
2782
2783	field->key = add_refcount(canonical_key);
2784	field->value = add_string(value);
2785	/* Usual prepend-addition. */
2786	field->next = op->key_values;
2787	op->key_values = field;
2788
2789	return TRUE;	2809	return TRUE;
		2810
		2811	field = new key_value;
		2812
		2813	field->key = canonical_key;
		2814	field->value = value;
		2815	/* Usual prepend-addition. */
		2816	field->next = op->key_values;
		2817	op->key_values = field;
		2818
		2819	return TRUE;
2790	}	2820	}
2791		2821
2792	/*	2822	/*
2793	* Updates the key in op to value.	2823	* Updates the key in op to value.
2794	*	2824	*
…		…
2796	* and not add new ones.	2826	* and not add new ones.
2797	* In general, should be little reason FALSE is ever passed in for add_key	2827	* In general, should be little reason FALSE is ever passed in for add_key
2798	*	2828	*
2799	* Returns TRUE on success.	2829	* Returns TRUE on success.
2800	*/	2830	*/
		2831	int
2801	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2832	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2802	const char * canonical_key = NULL;	2833	{
2803	int floating_ref = FALSE;	2834	shstr key_ (key);
2804	int ret;	2835
		2836	return set_ob_key_value_s (op, key_, value, add_key);
		2837	}
		2838
		2839	object::depth_iterator::depth_iterator (object *container)
		2840	: iterator_base (container)
		2841	{
		2842	while (item->inv)
		2843	item = item->inv;
		2844	}
		2845
		2846	void
		2847	object::depth_iterator::next ()
		2848	{
		2849	if (item->below)
2805		2850	{
2806	/* HACK This mess is to make sure set_ob_value() passes a shared string	2851	item = item->below;
2807	* to get_ob_key_link(), without leaving a leaked refcount.	2852
2808	*/	2853	while (item->inv)
		2854	item = item->inv;
2809		2855	}
2810	canonical_key = find_string(key);	2856	else
2811	if (canonical_key == NULL) {	2857	item = item->env;
2812	canonical_key = add_string(key);
2813	floating_ref = TRUE;
2814	}
2815
2816	ret = set_ob_key_value_s(op, canonical_key, value, add_key);
2817
2818	if (floating_ref) {
2819	free_string(canonical_key);
2820	}
2821
2822	return ret;
2823	}	2858	}
		2859
		2860	// return a suitable string describing an objetc in enough detail to find it
		2861	const char *
		2862	object::debug_desc (char *info) const
		2863	{
		2864	char info2[256 * 3];
		2865	char *p = info;
		2866
		2867	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2868	count,
		2869	&name,
		2870	title ? " " : "",
		2871	title ? (const char *)title : "");
		2872
		2873	if (env)
		2874	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2875
		2876	if (map)
		2877	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2878
		2879	return info;
		2880	}
		2881
		2882	const char *
		2883	object::debug_desc () const
		2884	{
		2885	static char info[256 * 3];
		2886	return debug_desc (info);
		2887	}
		2888

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