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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 1.57 by root, Sun Dec 3 02:46:33 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
287	void dump_object2(object *op) {	379	char *
288	char *cp;
289	/* object *tmp;*/
290
291	if(op->arch!=NULL) {
292	strcat(errmsg,"arch ");
293	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
294	strcat(errmsg,"\n");
295	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
296	strcat(errmsg,cp);
297	#if 0
298	/* Don't dump player diffs - they are too long, mostly meaningless, and
299	* will overflow the buffer.
300	* Changed so that we don't dump inventory either. This may
301	* also overflow the buffer.
302	*/
303	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
304	strcat(errmsg,cp);
305	for (tmp=op->inv; tmp; tmp=tmp->below)
306	dump_object2(tmp);
307	#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	}
323
324	/*
325	* Dumps an object. Returns output in the static global errmsg array.
326	*/
327
328	void dump_object(object *op) {	380	dump_object (object *op)
329	if(op==NULL) {
330	strcpy(errmsg,"[NULL pointer]");
331	return;
332	}
333	errmsg[0]='\0';
334	dump_object2(op);
335	}
336
337	/* GROS - Dumps an object. Return the result into a string */
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	{	381	{
342	char *cp;	382	if (!op)
		383	return strdup ("[NULLOBJ]");
343		384
344	if(op==NULL)	385	object_freezer freezer;
345	{	386	save_object (freezer, op, 3);
346	strcpy(outstr,"[NULL pointer]");	387	return freezer.as_string ();
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) {
378	object *op;
379	for(op=objects;op!=NULL;op=op->next) {
380	dump_object(op);
381	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
382	}
383	}	388	}
384		389
385	/*	390	/*
386	* get_nearest_part(multi-object, object 2) returns the part of the	391	* get_nearest_part(multi-object, object 2) returns the part of the
387	* multi-object 1 which is closest to the second object.	392	* multi-object 1 which is closest to the second object.
388	* If it's not a multi-object, it is returned.	393	* If it's not a multi-object, it is returned.
389	*/	394	*/
390		395
		396	object *
391	object *get_nearest_part(object *op, const object *pl) {	397	get_nearest_part (object *op, const object *pl)
		398	{
392	object *tmp,*closest;	399	object *tmp, *closest;
393	int last_dist,i;	400	int last_dist, i;
		401
394	if(op->more==NULL)	402	if (op->more == NULL)
395	return op;	403	return op;
396	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	404	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
397	if((i=distance(tmp,pl))<last_dist)	405	if ((i = distance (tmp, pl)) < last_dist)
398	closest=tmp,last_dist=i;	406	closest = tmp, last_dist = i;
399	return closest;	407	return closest;
400	}	408	}
401		409
402	/*	410	/*
403	* Returns the object which has the count-variable equal to the argument.	411	* Returns the object which has the count-variable equal to the argument.
404	*/	412	*/
405		413
		414	object *
406	object *find_object(tag_t i) {	415	find_object (tag_t i)
407	object *op;	416	{
408	for(op=objects;op!=NULL;op=op->next)	417	for (object *op = object::first; op; op = op->next)
409	if(op->count==i)	418	if (op->count == i)
410	break;	419	return op;
		420
411	return op;	421	return 0;
412	}	422	}
413		423
414	/*	424	/*
415	* Returns the first object which has a name equal to the argument.	425	* Returns the first object which has a name equal to the argument.
416	* Used only by the patch command, but not all that useful.	426	* Used only by the patch command, but not all that useful.
417	* Enables features like "patch <name-of-other-player> food 999"	427	* Enables features like "patch <name-of-other-player> food 999"
418	*/	428	*/
419		429
		430	object *
420	object *find_object_name(const char *str) {	431	find_object_name (const char *str)
421	const char *name=add_string(str);	432	{
		433	shstr_cmp str_ (str);
422	object *op;	434	object *op;
		435
423	for(op=objects;op!=NULL;op=op->next)	436	for (op = object::first; op != NULL; op = op->next)
424	if(op->name==name)	437	if (op->name == str_)
425	break;	438	break;
426	free_string(name);	439
427	return op;	440	return op;
428	}	441	}
429		442
		443	void
430	void free_all_object_data(void) {	444	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	{	445	{
472	if (!op) return;	446	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	}	447	}
480
481
482		448
483	/*	449	/*
484	* Sets the owner and sets the skill and exp pointers to owner's current	450	* Sets the owner and sets the skill and exp pointers to owner's current
485	* skill and experience objects.	451	* skill and experience objects.
486	*/	452	*/
487	void set_owner (object *op, object *owner)	453	void
		454	object::set_owner (object *owner)
488	{	455	{
489	if(owner==NULL||op==NULL)	456	if (!owner)
490	return;	457	return;
491		458
492	/* next line added to allow objects which own objects */	459	/* next line added to allow objects which own objects */
493	/* Add a check for ownercounts in here, as I got into an endless loop	460	/* Add a check for ownercounts in here, as I got into an endless loop
494	* with the fireball owning a poison cloud which then owned the	461	* with the fireball owning a poison cloud which then owned the
495	* fireball. I believe that was caused by one of the objects getting	462	* fireball. I believe that was caused by one of the objects getting
496	* freed and then another object replacing it. Since the ownercounts	463	* 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.	464	* didn't match, this check is valid and I believe that cause is valid.
498	*/	465	*/
499	while (owner->owner && owner!=owner->owner &&	466	while (owner->owner)
500	owner->ownercount==owner->owner->count) owner=owner->owner;	467	owner = owner->owner;
501		468
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;	469	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	}	470	}
556		471
557	/* Zero the key_values on op, decrementing the shared-string	472	/* Zero the key_values on op, decrementing the shared-string
558	* refcounts and freeing the links.	473	* refcounts and freeing the links.
559	*/	474	*/
		475	static void
560	static void free_key_values(object * op) {	476	free_key_values (object *op)
561	key_value * i;	477	{
562	key_value * next = NULL;	478	for (key_value *i = op->key_values; i != 0;)
563		479	{
564	if (op->key_values == NULL) return;	480	key_value *next = i->next;
		481	delete i;
		482
		483	i = next;
565		484	}
566	for (i = op->key_values; i != NULL; i = next) {	485
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;	486	op->key_values = 0;
577	}	487	}
578		488
		489	void object::clear ()
		490	{
		491	attachable_base::clear ();
579		492
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);	493	free_key_values (this);
610		494
611	/* the memset will clear all these values for us, but we need	495	owner = 0;
612	* to reduce the refcount on them.	496	name = 0;
613	*/	497	name_pl = 0;
614	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);	498	title = 0;
615	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);	499	race = 0;
616	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);	500	slaying = 0;
617	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);	501	skill = 0;
618	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);	502	msg = 0;
619	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);	503	lore = 0;
620	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);	504	custom_name = 0;
621	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);	505	materialname = 0;
622	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);	506	contr = 0;
		507	below = 0;
		508	above = 0;
		509	inv = 0;
		510	container = 0;
		511	env = 0;
		512	more = 0;
		513	head = 0;
		514	map = 0;
		515	active_next = 0;
		516	active_prev = 0;
623		517
		518	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
624		519
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);	520	SET_FLAG (this, FLAG_REMOVED);
631		521
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 */	522	/* What is not cleared is next, prev, and count */
647		523
648	op->expmul=1.0;	524	expmul = 1.0;
649	op->face = blank_face;	525	face = blank_face;
650	op->attacked_by_count = (tag_t) -1;	526
651	if (settings.casting_time)	527	if (settings.casting_time)
652	op->casting_time = -1;	528	casting_time = -1;
		529	}
653		530
		531	void object::clone (object *destination)
		532	{
		533	*(object_copy *)destination = *this;
		534	*(object_pod *)destination = *this;
		535
		536	if (self || cb)
		537	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
654	}	538	}
655		539
656	/*	540	/*
657	* copy object first frees everything allocated by the second object,	541	* copy object first frees everything allocated by the second object,
658	* and then copies the contends of the first object into the second	542	* and then copies the contends of the first object into the second
659	* object, allocating what needs to be allocated. Basically, any	543	* object, allocating what needs to be allocated. Basically, any
660	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	544	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
661	* if the first object is freed, the pointers in the new object	545	* if the first object is freed, the pointers in the new object
662	* will point at garbage.	546	* will point at garbage.
663	*/	547	*/
664		548	void
665	void copy_object(object *op2, object *op) {	549	copy_object (object *op2, object *op)
666	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);	550	{
667	event *evt, *evt2, *evt_new;	551	bool is_freed = QUERY_FLAG (op, FLAG_FREED);
		552	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);
668		553
669	if (object_free_callback)	554	op2->clone (op);
670	object_free_callback (op);
671		555
672	// callback registries and self are empty for copied objects	556	if (is_freed)
673	// this ought to change in the future	557	SET_FLAG (op, FLAG_FREED);
		558	if (is_removed)
		559	SET_FLAG (op, FLAG_REMOVED);
674		560
675	/* Decrement the refcounts, but don't bother zeroing the fields;	561	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;	562	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
719		563
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. */	564	/* Copy over key_values, if any. */
742	if (op2->key_values != NULL) {	565	if (op2->key_values)
743	key_value * tail = NULL;	566	{
		567	key_value *tail = 0;
744	key_value * i;	568	key_value *i;
745		569
746	op->key_values = NULL;	570	op->key_values = 0;
747		571
748	for (i = op2->key_values; i != NULL; i = i->next) {	572	for (i = op2->key_values; i; i = i->next)
749	key_value * new_link = (key_value *) malloc(sizeof(key_value));	573	{
		574	key_value *new_link = new key_value;
750		575
751	new_link->next = NULL;	576	new_link->next = 0;
752	new_link->key = add_refcount(i->key);	577	new_link->key = i->key;
753	if (i->value)	578	new_link->value = i->value;
754	new_link->value = add_refcount(i->value);
755	else
756	new_link->value = NULL;
757		579
758	/* Try and be clever here, too. */	580	/* Try and be clever here, too. */
759	if (op->key_values == NULL) {	581	if (!op->key_values)
		582	{
760	op->key_values = new_link;	583	op->key_values = new_link;
761	tail = new_link;	584	tail = new_link;
762	} else {	585	}
763	tail->next = new_link;	586	else
764	tail = new_link;	587	{
		588	tail->next = new_link;
		589	tail = new_link;
		590	}
		591	}
765	}	592	}
766	}
767	}
768		593
769	update_ob_speed(op);	594	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	}	595	}
856		596
857	/*	597	/*
858	* If an object with the IS_TURNABLE() flag needs to be turned due	598	* 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	599	* 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.	600	* be called to update the face variable, _and_ how it looks on the map.
861	*/	601	*/
862		602
		603	void
863	void update_turn_face(object *op) {	604	update_turn_face (object *op)
		605	{
864	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	606	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
865	return;	607	return;
866	SET_ANIMATION(op, op->direction);	608	SET_ANIMATION (op, op->direction);
867	update_object(op,UP_OBJ_FACE);	609	update_object (op, UP_OBJ_FACE);
868	}	610	}
869		611
870	/*	612	/*
871	* Updates the speed of an object. If the speed changes from 0 to another	613	* Updates the speed of an object. If the speed changes from 0 to another
872	* value, or vice versa, then add/remove the object from the active list.	614	* value, or vice versa, then add/remove the object from the active list.
873	* This function needs to be called whenever the speed of an object changes.	615	* This function needs to be called whenever the speed of an object changes.
874	*/	616	*/
875		617	void
876	void update_ob_speed(object *op) {	618	update_ob_speed (object *op)
		619	{
877	extern int arch_init;	620	extern int arch_init;
878		621
879	/* No reason putting the archetypes objects on the speed list,	622	/* No reason putting the archetypes objects on the speed list,
880	* since they never really need to be updated.	623	* since they never really need to be updated.
881	*/	624	*/
882		625
883	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	626	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		627	{
884	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	628	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
885	#ifdef MANY_CORES	629	#ifdef MANY_CORES
886	abort();	630	abort ();
887	#else	631	#else
888	op->speed = 0;	632	op->speed = 0;
889	#endif	633	#endif
890	}	634	}
		635
891	if (arch_init) {	636	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;	637	return;
898		638
		639	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		640	{
		641	/* If already on active list, don't do anything */
		642	if (op->active_next || op->active_prev || op == active_objects)
		643	return;
		644
899	/* process_events() expects us to insert the object at the beginning	645	/* process_events() expects us to insert the object at the beginning
900	* of the list. */	646	* of the list. */
901	op->active_next = active_objects;	647	op->active_next = active_objects;
		648
902	if (op->active_next!=NULL)	649	if (op->active_next != NULL)
903	op->active_next->active_prev = op;	650	op->active_next->active_prev = op;
		651
904	active_objects = op;	652	active_objects = op;
		653	}
		654	else
905	}	655	{
906	else {
907	/* If not on the active list, nothing needs to be done */	656	/* If not on the active list, nothing needs to be done */
908	if (!op->active_next && !op->active_prev && op!=active_objects)	657	if (!op->active_next && !op->active_prev && op != active_objects)
909	return;	658	return;
910		659
911	if (op->active_prev==NULL) {	660	if (op->active_prev == NULL)
		661	{
912	active_objects = op->active_next;	662	active_objects = op->active_next;
		663
913	if (op->active_next!=NULL)	664	if (op->active_next != NULL)
914	op->active_next->active_prev = NULL;	665	op->active_next->active_prev = NULL;
915	}	666	}
916	else {	667	else
		668	{
917	op->active_prev->active_next = op->active_next;	669	op->active_prev->active_next = op->active_next;
		670
918	if (op->active_next)	671	if (op->active_next)
919	op->active_next->active_prev = op->active_prev;	672	op->active_next->active_prev = op->active_prev;
920	}	673	}
		674
921	op->active_next = NULL;	675	op->active_next = NULL;
922	op->active_prev = NULL;	676	op->active_prev = NULL;
923	}	677	}
924	}	678	}
925		679
926	/* This function removes object 'op' from the list of active	680	/* This function removes object 'op' from the list of active
927	* objects.	681	* objects.
…		…
929	* reference maps where you don't want an object that isn't	683	* reference maps where you don't want an object that isn't
930	* in play chewing up cpu time getting processed.	684	* in play chewing up cpu time getting processed.
931	* The reverse of this is to call update_ob_speed, which	685	* The reverse of this is to call update_ob_speed, which
932	* will do the right thing based on the speed of the object.	686	* will do the right thing based on the speed of the object.
933	*/	687	*/
		688	void
934	void remove_from_active_list(object *op)	689	remove_from_active_list (object *op)
935	{	690	{
936	/* If not on the active list, nothing needs to be done */	691	/* If not on the active list, nothing needs to be done */
937	if (!op->active_next && !op->active_prev && op!=active_objects)	692	if (!op->active_next && !op->active_prev && op != active_objects)
938	return;	693	return;
939		694
940	if (op->active_prev==NULL) {	695	if (op->active_prev == NULL)
		696	{
941	active_objects = op->active_next;	697	active_objects = op->active_next;
942	if (op->active_next!=NULL)	698	if (op->active_next != NULL)
943	op->active_next->active_prev = NULL;	699	op->active_next->active_prev = NULL;
		700	}
		701	else
944	}	702	{
945	else {
946	op->active_prev->active_next = op->active_next;	703	op->active_prev->active_next = op->active_next;
947	if (op->active_next)	704	if (op->active_next)
948	op->active_next->active_prev = op->active_prev;	705	op->active_next->active_prev = op->active_prev;
949	}	706	}
950	op->active_next = NULL;	707	op->active_next = NULL;
951	op->active_prev = NULL;	708	op->active_prev = NULL;
952	}	709	}
953		710
954	/*	711	/*
955	* update_object() updates the array which represents the map.	712	* update_object() updates the array which represents the map.
956	* It takes into account invisible objects (and represent squares covered	713	* It takes into account invisible objects (and represent squares covered
…		…
971	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	728	* 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.	729	* as that is easier than trying to look at what may have changed.
973	* UP_OBJ_FACE: only the objects face has changed.	730	* UP_OBJ_FACE: only the objects face has changed.
974	*/	731	*/
975		732
		733	void
976	void update_object(object *op, int action) {	734	update_object (object *op, int action)
		735	{
977	int update_now=0, flags;	736	int update_now = 0, flags;
978	MoveType move_on, move_off, move_block, move_slow;	737	MoveType move_on, move_off, move_block, move_slow;
979		738
980	if (op == NULL) {	739	if (op == NULL)
		740	{
981	/* this should never happen */	741	/* this should never happen */
982	LOG(llevDebug,"update_object() called for NULL object.\n");	742	LOG (llevDebug, "update_object() called for NULL object.\n");
983	return;	743	return;
984	}
985		744	}
		745
986	if(op->env!=NULL) {	746	if (op->env != NULL)
		747	{
987	/* Animation is currently handled by client, so nothing	748	/* Animation is currently handled by client, so nothing
988	* to do in this case.	749	* to do in this case.
989	*/	750	*/
990	return;	751	return;
991	}	752	}
992		753
993	/* If the map is saving, don't do anything as everything is	754	/* If the map is saving, don't do anything as everything is
994	* going to get freed anyways.	755	* going to get freed anyways.
995	*/	756	*/
996	if (!op->map || op->map->in_memory == MAP_SAVING) return;	757	if (!op->map || op->map->in_memory == MAP_SAVING)
997		758	return;
		759
998	/* make sure the object is within map boundaries */	760	/* make sure the object is within map boundaries */
999	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	761	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)) {	762	{
1001	LOG(llevError,"update_object() called for object out of map!\n");	763	LOG (llevError, "update_object() called for object out of map!\n");
1002	#ifdef MANY_CORES	764	#ifdef MANY_CORES
1003	abort();	765	abort ();
1004	#endif	766	#endif
1005	return;	767	return;
1006	}
1007		768	}
		769
1008	flags = GET_MAP_FLAGS(op->map, op->x, op->y);	770	flags = GET_MAP_FLAGS (op->map, op->x, op->y);
1009	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);	771	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);	772	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);	773	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);	774	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);	775	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
1014		776
1015	if (action == UP_OBJ_INSERT) {	777	if (action == UP_OBJ_INSERT)
		778	{
1016	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	779	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))
1017	update_now=1;	780	update_now = 1;
1018		781
1019	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	782	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))
1020	update_now=1;	783	update_now = 1;
1021		784
1022	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	785	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))
1023	update_now=1;	786	update_now = 1;
1024		787
1025	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	788	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
1026	update_now=1;	789	update_now = 1;
1027		790
		791	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
		792	update_now = 1;
		793
1028	if ((move_on | op->move_on) != move_on) update_now=1;	794	if ((move_on | op->move_on) != move_on)
		795	update_now = 1;
		796
1029	if ((move_off | op->move_off) != move_off) update_now=1;	797	if ((move_off | op->move_off) != move_off)
		798	update_now = 1;
		799
1030	/* This isn't perfect, but I don't expect a lot of objects to	800	/* This isn't perfect, but I don't expect a lot of objects to
1031	* to have move_allow right now.	801	* to have move_allow right now.
1032	*/	802	*/
1033	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	803	if (((move_block | op->move_block) & ~op->move_allow) != move_block)
1034	update_now=1;	804	update_now = 1;
		805
1035	if ((move_slow | op->move_slow) != move_slow) update_now=1;	806	if ((move_slow | op->move_slow) != move_slow)
		807	update_now = 1;
1036	}	808	}
1037	/* if the object is being removed, we can't make intelligent	809	/* if the object is being removed, we can't make intelligent
1038	* decisions, because remove_ob can't really pass the object	810	* decisions, because remove_ob can't really pass the object
1039	* that is being removed.	811	* that is being removed.
1040	*/	812	*/
1041	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	813	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1042	update_now=1;	814	update_now = 1;
1043	} else if (action == UP_OBJ_FACE) {	815	else if (action == UP_OBJ_FACE)
1044	/* Nothing to do for that case */	816	/* Nothing to do for that case */ ;
1045	}
1046	else {	817	else
1047	LOG(llevError,"update_object called with invalid action: %d\n", action);	818	LOG (llevError, "update_object called with invalid action: %d\n", action);
1048	}
1049		819
1050	if (update_now) {	820	if (update_now)
		821	{
1051	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);	822	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);	823	update_position (op->map, op->x, op->y);
1053	}	824	}
1054		825
1055	if(op->more!=NULL)	826	if (op->more != NULL)
1056	update_object(op->more, action);	827	update_object (op->more, action);
1057	}	828	}
1058		829
		830	object::vector object::mortals;
		831	object::vector object::objects; // not yet used
		832	object *object::first;
		833
		834	void object::free_mortals ()
		835	{
		836	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
		837	if ((*i)->refcnt)
		838	++i; // further delay freeing
		839	else
		840	{
		841	delete *i;
		842	mortals.erase (i);
		843	}
		844
		845	static int lastmortals = 0;//D
		846
		847	if (mortals.size() != lastmortals && lastmortals > 100)//D
		848	{
		849	lastmortals = mortals.size ();//D
		850	LOG (llevDebug, "%d objects in mortal queue\n", lastmortals);//D
		851	}
		852	}
		853
		854	object::object ()
		855	{
		856	SET_FLAG (this, FLAG_REMOVED);
		857
		858	expmul = 1.0;
		859	face = blank_face;
		860	}
		861
		862	object::~object ()
		863	{
		864	free_key_values (this);
		865	}
		866
		867	void object::link ()
		868	{
		869	count = ++ob_count;
		870	uuid = gen_uuid ();
		871
		872	prev = 0;
		873	next = object::first;
		874
		875	if (object::first)
		876	object::first->prev = this;
		877
		878	object::first = this;
		879	}
		880
		881	void object::unlink ()
		882	{
		883	if (this == object::first)
		884	object::first = next;
		885
		886	/* Remove this object from the list of used objects */
		887	if (prev) prev->next = next;
		888	if (next) next->prev = prev;
		889
		890	prev = 0;
		891	next = 0;
		892	}
		893
		894	object *object::create ()
		895	{
		896	object *op = new object;
		897	op->link ();
		898	return op;
		899	}
1059		900
1060	/*	901	/*
1061	* free_object() frees everything allocated by an object, removes	902	* free_object() frees everything allocated by an object, removes
1062	* it from the list of used objects, and puts it on the list of	903	* 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.	904	* free objects. The IS_FREED() flag is set in the object.
1064	* The object must have been removed by remove_ob() first for	905	* The object must have been removed by remove_ob() first for
1065	* this function to succeed.	906	* this function to succeed.
1066	*	907	*
1067	* If free_inventory is set, free inventory as well. Else drop items in	908	* If destroy_inventory is set, free inventory as well. Else drop items in
1068	* inventory to the ground.	909	* inventory to the ground.
1069	*/	910	*/
		911	void object::destroy (bool destroy_inventory)
		912	{
		913	if (QUERY_FLAG (this, FLAG_FREED))
		914	return;
1070		915
1071	void free_object(object *ob) {	916	if (QUERY_FLAG (this, FLAG_FRIENDLY))
1072	free_object2(ob, 0);	917	remove_friendly_object (this);
1073	}
1074	void free_object2(object *ob, int free_inventory) {
1075	object *tmp,*op;
1076		918
1077	if (object_free_callback)
1078	object_free_callback (ob);
1079
1080	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	919	if (!QUERY_FLAG (this, FLAG_REMOVED))
1081	LOG(llevDebug,"Free object called with non removed object\n");	920	remove_ob (this);
1082	dump_object(ob);	921
1083	#ifdef MANY_CORES	922	SET_FLAG (this, FLAG_FREED);
1084	abort();	923
1085	#endif	924	if (more)
1086	}	925	{
1087	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	926	more->destroy (destroy_inventory);
1088	LOG(llevMonster,"Warning: tried to free friendly object.\n");	927	more = 0;
1089	remove_friendly_object(ob);	928	}
		929
		930	if (inv)
1090	}	931	{
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 -	932	/* Only if the space blocks everything do we not process -
1102	* if some form of movemnt is allowed, let objects	933	* if some form of movement is allowed, let objects
1103	* drop on that space.	934	* drop on that space.
1104	*/	935	*/
1105	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	936	if (destroy_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))	937	{
1107	{	938	object *op = inv;
1108	op=ob->inv;	939
1109	while(op!=NULL) {	940	while (op)
1110	tmp=op->below;	941	{
1111	remove_ob(op);	942	object *tmp = op->below;
1112	free_object2(op, free_inventory);	943	op->destroy (destroy_inventory);
1113	op=tmp;	944	op = tmp;
		945	}
		946	}
		947	else
		948	{ /* Put objects in inventory onto this space */
		949	object *op = inv;
		950
		951	while (op)
		952	{
		953	object *tmp = op->below;
		954
		955	remove_ob (op);
		956
		957	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
		958	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
		959	free_object (op);
		960	else
		961	{
		962	op->x = x;
		963	op->y = y;
		964	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
		965	}
		966
		967	op = tmp;
		968	}
		969	}
1114	}	970	}
1115	}	971
1116	else { /* Put objects in inventory onto this space */	972	// hack to ensure that freed objects still have a valid map
1117	op=ob->inv;	973	{
1118	while(op!=NULL) {	974	static maptile *freed_map; // freed objects are moved here to avoid crashes
1119	tmp=op->below;	975
1120	remove_ob(op);	976	if (!freed_map)
1121	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||	977	{
1122	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))	978	freed_map = new maptile;
1123	free_object(op);	979
1124	else {	980	freed_map->name = "/internal/freed_objects_map";
1125	op->x=ob->x;	981	freed_map->width = 3;
1126	op->y=ob->y;	982	freed_map->height = 3;
1127	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */	983
1128	}	984	freed_map->allocate ();
1129	op=tmp;
1130	}
1131	}
1132	}	985	}
		986
		987	map = freed_map;
		988	x = 1;
		989	y = 1;
		990	}
		991
		992	// clear those pointers that likely might have circular references to us
		993	owner = 0;
		994	enemy = 0;
		995	attacked_by = 0;
		996
		997	// only relevant for players(?), but make sure of it anyways
		998	contr = 0;
		999
1133	/* Remove object from the active list */	1000	/* Remove object from the active list */
1134	ob->speed = 0;	1001	speed = 0;
1135	update_ob_speed(ob);	1002	update_ob_speed (this);
1136		1003
1137	SET_FLAG(ob, FLAG_FREED);	1004	unlink ();
1138	ob->count = 0;
1139		1005
1140	/* Remove this object from the list of used objects */	1006	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	}	1007	}
1225		1008
1226	/*	1009	/*
1227	* sub_weight() recursively (outwards) subtracts a number from the	1010	* sub_weight() recursively (outwards) subtracts a number from the
1228	* weight of an object (and what is carried by it's environment(s)).	1011	* weight of an object (and what is carried by it's environment(s)).
1229	*/	1012	*/
1230		1013
		1014	void
1231	void sub_weight (object *op, signed long weight) {	1015	sub_weight (object *op, signed long weight)
		1016	{
1232	while (op != NULL) {	1017	while (op != NULL)
		1018	{
1233	if (op->type == CONTAINER) {	1019	if (op->type == CONTAINER)
1234	weight=(signed long)(weight*(100-op->stats.Str)/100);	1020	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1235	}	1021
1236	op->carrying-=weight;	1022	op->carrying -= weight;
1237	op = op->env;	1023	op = op->env;
1238	}	1024	}
1239	}	1025	}
1240		1026
1241	/* remove_ob(op):	1027	/* remove_ob(op):
1242	* This function removes the object op from the linked list of objects	1028	* 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	1029	* which it is currently tied to. When this function is done, the
…		…
1245	* environment, the x and y coordinates will be updated to	1031	* environment, the x and y coordinates will be updated to
1246	* the previous environment.	1032	* the previous environment.
1247	* Beware: This function is called from the editor as well!	1033	* Beware: This function is called from the editor as well!
1248	*/	1034	*/
1249		1035
		1036	void
1250	void remove_ob(object *op) {	1037	remove_ob (object *op)
		1038	{
1251	object *tmp,*last=NULL;	1039	object *tmp, *last = 0;
1252	object *otmp;	1040	object *otmp;
1253	tag_t tag;	1041
1254	int check_walk_off;	1042	int check_walk_off;
1255	mapstruct *m;	1043	maptile *m;
		1044
1256	sint16 x,y;	1045	sint16 x, y;
1257
1258		1046
1259	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1047	if (QUERY_FLAG (op, FLAG_REMOVED))
1260	dump_object(op);	1048	return;
1261	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1262		1049
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);	1050	SET_FLAG (op, FLAG_REMOVED);
1279		1051
		1052	if (op->more != NULL)
		1053	remove_ob (op->more);
		1054
1280	/*	1055	/*
1281	* In this case, the object to be removed is in someones	1056	* In this case, the object to be removed is in someones
1282	* inventory.	1057	* inventory.
1283	*/	1058	*/
1284	if(op->env!=NULL) {	1059	if (op->env != NULL)
		1060	{
1285	if(op->nrof)	1061	if (op->nrof)
1286	sub_weight(op->env, op->weight*op->nrof);	1062	sub_weight (op->env, op->weight * op->nrof);
1287	else	1063	else
1288	sub_weight(op->env, op->weight+op->carrying);	1064	sub_weight (op->env, op->weight + op->carrying);
1289		1065
1290	/* NO_FIX_PLAYER is set when a great many changes are being	1066	/* NO_FIX_PLAYER is set when a great many changes are being
1291	* made to players inventory. If set, avoiding the call	1067	* made to players inventory. If set, avoiding the call
1292	* to save cpu time.	1068	* to save cpu time.
1293	*/	1069	*/
1294	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1070	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);	1071	fix_player (otmp);
1297		1072
1298	if(op->above!=NULL)	1073	if (op->above != NULL)
1299	op->above->below=op->below;	1074	op->above->below = op->below;
1300	else	1075	else
1301	op->env->inv=op->below;	1076	op->env->inv = op->below;
1302		1077
1303	if(op->below!=NULL)	1078	if (op->below != NULL)
1304	op->below->above=op->above;	1079	op->below->above = op->above;
1305		1080
1306	/* we set up values so that it could be inserted into	1081	/* we set up values so that it could be inserted into
1307	* the map, but we don't actually do that - it is up	1082	* the map, but we don't actually do that - it is up
1308	* to the caller to decide what we want to do.	1083	* to the caller to decide what we want to do.
1309	*/	1084	*/
1310	op->x=op->env->x,op->y=op->env->y;	1085	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;	1086	op->map = op->env->map;
1313	op->above=NULL,op->below=NULL;	1087	op->above = NULL, op->below = NULL;
1314	op->env=NULL;	1088	op->env = NULL;
1315	return;	1089	}
		1090	else if (op->map)
1316	}	1091	{
1317
1318	/* If we get here, we are removing it from a map */
1319	if (op->map == NULL) return;
1320
1321	x = op->x;	1092	x = op->x;
1322	y = op->y;	1093	y = op->y;
1323	m = get_map_from_coord(op->map, &x, &y);	1094	m = get_map_from_coord (op->map, &x, &y);
1324		1095
1325	if (!m) {	1096	if (!m)
		1097	{
1326	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1098	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);	1099	op->map->path, op->x, op->y);
1328	/* in old days, we used to set x and y to 0 and continue.	1100	/* 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	1101	* it seems if we get into this case, something is probablye
1330	* screwed up and should be fixed.	1102	* screwed up and should be fixed.
1331	*/	1103	*/
1332	abort();	1104	abort ();
1333	}	1105	}
		1106
1334	if (op->map != m) {	1107	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",	1108	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);	1109	op->map->path, m->path, op->x, op->y, x, y);
1337	}
1338		1110
1339	/* Re did the following section of code - it looks like it had	1111	/* Re did the following section of code - it looks like it had
1340	* lots of logic for things we no longer care about	1112	* lots of logic for things we no longer care about
1341	*/	1113	*/
1342		1114
1343	/* link the object above us */	1115	/* link the object above us */
1344	if (op->above)	1116	if (op->above)
1345	op->above->below=op->below;	1117	op->above->below = op->below;
1346	else	1118	else
1347	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */	1119	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1348		1120
1349	/* Relink the object below us, if there is one */	1121	/* Relink the object below us, if there is one */
1350	if(op->below) {	1122	if (op->below)
1351	op->below->above=op->above;	1123	op->below->above = op->above;
1352	} else {	1124	else
		1125	{
1353	/* Nothing below, which means we need to relink map object for this space	1126	/* 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	1127	* use translated coordinates in case some oddness with map tiling is
1355	* evident	1128	* evident
1356	*/	1129	*/
1357	if(GET_MAP_OB(m,x,y)!=op) {	1130	if (GET_MAP_OB (m, x, y) != op)
1358	dump_object(op);	1131	{
		1132	char *dump = dump_object (op);
		1133	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);	1134	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);
1360	dump_object(GET_MAP_OB(m,x,y));	1135	free (dump);
1361	LOG(llevError,"%s\n",errmsg);	1136	dump = dump_object (GET_MAP_OB (m, x, y));
1362	}	1137	LOG (llevError, "%s\n", dump);
		1138	free (dump);
		1139	}
		1140
1363	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1141	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */
1364	}	1142	}
1365	op->above=NULL;	1143
		1144	op->above = 0;
1366	op->below=NULL;	1145	op->below = 0;
1367		1146
1368	if (op->map->in_memory == MAP_SAVING)	1147	if (op->map->in_memory == MAP_SAVING)
1369	return;	1148	return;
1370		1149
1371	tag = op->count;
1372	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1150	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
		1151
1373	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1152	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
		1153	{
1374	/* No point updating the players look faces if he is the object	1154	/* No point updating the players look faces if he is the object
1375	* being removed.	1155	* being removed.
1376	*/	1156	*/
1377		1157
1378	if(tmp->type==PLAYER && tmp!=op) {	1158	if (tmp->type == PLAYER && tmp != op)
		1159	{
1379	/* If a container that the player is currently using somehow gets	1160	/* If a container that the player is currently using somehow gets
1380	* removed (most likely destroyed), update the player view	1161	* removed (most likely destroyed), update the player view
1381	* appropriately.	1162	* appropriately.
1382	*/	1163	*/
1383	if (tmp->container==op) {	1164	if (tmp->container == op)
1384	CLEAR_FLAG(op, FLAG_APPLIED);	1165	{
1385	tmp->container=NULL;	1166	CLEAR_FLAG (op, FLAG_APPLIED);
1386	}	1167	tmp->container = NULL;
		1168	}
		1169
1387	tmp->contr->socket.update_look=1;	1170	tmp->contr->socket.update_look = 1;
1388	}	1171	}
		1172
1389	/* See if player moving off should effect something */	1173	/* See if player moving off should effect something */
1390	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1174	if (check_walk_off
		1175	&& ((op->move_type & tmp->move_off)
1391	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1176	&& (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1392		1177	{
1393	move_apply(tmp, op, NULL);	1178	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		1179
		1180	if (op->destroyed ())
		1181	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
		1182	}
		1183
1400	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1184	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1401		1185
1402	if(tmp->above == tmp)	1186	if (tmp->above == tmp)
1403	tmp->above = NULL;	1187	tmp->above = NULL;
1404	last=tmp;	1188
1405	}	1189	last = tmp;
		1190	}
		1191
1406	/* last == NULL of there are no objects on this space */	1192	/* last == NULL of there are no objects on this space */
1407	if (last==NULL) {	1193	if (last == NULL)
		1194	{
1408	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1195	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1409	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1196	* 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	1197	* those out anyways, and if there are any flags set right now, they won't
1411	* be correct anyways.	1198	* be correct anyways.
1412	*/	1199	*/
1413	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);	1200	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1414	update_position(op->map, op->x, op->y);	1201	update_position (op->map, op->x, op->y);
1415	}	1202	}
1416	else	1203	else
1417	update_object(last, UP_OBJ_REMOVE);	1204	update_object (last, UP_OBJ_REMOVE);
1418		1205
1419	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1206	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))
1420	update_all_los(op->map, op->x, op->y);	1207	update_all_los (op->map, op->x, op->y);
1421		1208	}
1422	}	1209	}
1423		1210
1424	/*	1211	/*
1425	* merge_ob(op,top):	1212	* merge_ob(op,top):
1426	*	1213	*
1427	* This function goes through all objects below and including top, and	1214	* This function goes through all objects below and including top, and
1428	* merges op to the first matching object.	1215	* merges op to the first matching object.
1429	* If top is NULL, it is calculated.	1216	* If top is NULL, it is calculated.
1430	* Returns pointer to object if it succeded in the merge, otherwise NULL	1217	* Returns pointer to object if it succeded in the merge, otherwise NULL
1431	*/	1218	*/
1432		1219	object *
1433	object *merge_ob(object *op, object *top) {	1220	merge_ob (object *op, object *top)
		1221	{
1434	if(!op->nrof)	1222	if (!op->nrof)
1435	return 0;	1223	return 0;
		1224
1436	if(top==NULL)	1225	if (top == NULL)
1437	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1226	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1227
1438	for(;top!=NULL;top=top->below) {	1228	for (; top != NULL; top = top->below)
		1229	{
1439	if(top==op)	1230	if (top == op)
1440	continue;	1231	continue;
1441	if (CAN_MERGE(op,top))	1232	if (CAN_MERGE (op, top))
1442	{	1233	{
1443	top->nrof+=op->nrof;	1234	top->nrof += op->nrof;
		1235
1444	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1236	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1445	op->weight = 0; /* Don't want any adjustements now */	1237	op->weight = 0; /* Don't want any adjustements now */
1446	remove_ob(op);	1238	remove_ob (op);
1447	free_object(op);	1239	free_object (op);
1448	return top;	1240	return top;
1449	}	1241	}
1450	}	1242	}
		1243
1451	return NULL;	1244	return 0;
1452	}	1245	}
1453		1246
1454	/*	1247	/*
1455	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1248	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1456	* job preparing multi-part monsters	1249	* job preparing multi-part monsters
1457	*/	1250	*/
		1251	object *
1458	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1252	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1253	{
1459	object* tmp;	1254	object *tmp;
		1255
1460	if (op->head)	1256	if (op->head)
1461	op=op->head;	1257	op = op->head;
		1258
1462	for (tmp=op;tmp;tmp=tmp->more){	1259	for (tmp = op; tmp; tmp = tmp->more)
		1260	{
1463	tmp->x=x+tmp->arch->clone.x;	1261	tmp->x = x + tmp->arch->clone.x;
1464	tmp->y=y+tmp->arch->clone.y;	1262	tmp->y = y + tmp->arch->clone.y;
1465	}	1263	}
		1264
1466	return insert_ob_in_map (op, m, originator, flag);	1265	return insert_ob_in_map (op, m, originator, flag);
1467	}	1266	}
1468		1267
1469	/*	1268	/*
1470	* insert_ob_in_map (op, map, originator, flag):	1269	* insert_ob_in_map (op, map, originator, flag):
1471	* This function inserts the object in the two-way linked list	1270	* This function inserts the object in the two-way linked list
…		…
1485	* new object if 'op' was merged with other object	1284	* new object if 'op' was merged with other object
1486	* NULL if 'op' was destroyed	1285	* NULL if 'op' was destroyed
1487	* just 'op' otherwise	1286	* just 'op' otherwise
1488	*/	1287	*/
1489		1288
		1289	object *
1490	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1290	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1491	{	1291	{
1492	object *tmp, *top, *floor=NULL;	1292	object *tmp, *top, *floor = NULL;
1493	sint16 x,y;	1293	sint16 x, y;
1494		1294
1495	if (QUERY_FLAG (op, FLAG_FREED)) {	1295	if (QUERY_FLAG (op, FLAG_FREED))
		1296	{
1496	LOG (llevError, "Trying to insert freed object!\n");	1297	LOG (llevError, "Trying to insert freed object!\n");
1497	return NULL;	1298	return NULL;
		1299	}
		1300
		1301	if (m == NULL)
1498	}	1302	{
1499	if(m==NULL) {	1303	char *dump = dump_object (op);
1500	dump_object(op);
1501	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1304	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1502	return op;	1305	free (dump);
		1306	return op;
1503	}	1307	}
		1308
1504	if(out_of_map(m,op->x,op->y)) {	1309	if (out_of_map (m, op->x, op->y))
1505	dump_object(op);	1310	{
		1311	char *dump = dump_object (op);
1506	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1312	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1507	#ifdef MANY_CORES	1313	#ifdef MANY_CORES
1508	/* Better to catch this here, as otherwise the next use of this object	1314	/* 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	1315	* is likely to cause a crash. Better to find out where it is getting
1510	* improperly inserted.	1316	* improperly inserted.
1511	*/	1317	*/
1512	abort();	1318	abort ();
1513	#endif	1319	#endif
1514	return op;	1320	free (dump);
		1321	return op;
1515	}	1322	}
		1323
1516	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1324	if (!QUERY_FLAG (op, FLAG_REMOVED))
1517	dump_object(op);	1325	{
		1326	char *dump = dump_object (op);
1518	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1327	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1519	return op;	1328	free (dump);
		1329	return op;
1520	}	1330	}
		1331
1521	if(op->more!=NULL) {	1332	if (op->more != NULL)
		1333	{
1522	/* The part may be on a different map. */	1334	/* The part may be on a different map. */
1523		1335
1524	object *more = op->more;	1336	object *more = op->more;
1525		1337
1526	/* We really need the caller to normalize coordinates - if	1338	/* We really need the caller to normalize coordinates - if
1527	* we set the map, that doesn't work if the location is within	1339	* 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	1340	* a map and this is straddling an edge. So only if coordinate
1529	* is clear wrong do we normalize it.	1341	* is clear wrong do we normalize it.
1530	*/	1342	*/
1531	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1343	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);	1344	more->map = get_map_from_coord (m, &more->x, &more->y);
1536	} else if (!more->map) {	1345	else if (!more->map)
		1346	{
1537	/* For backwards compatibility - when not dealing with tiled maps,	1347	/* For backwards compatibility - when not dealing with tiled maps,
1538	* more->map should always point to the parent.	1348	* more->map should always point to the parent.
1539	*/	1349	*/
1540	more->map = m;	1350	more->map = m;
1541	}	1351	}
1542		1352
1543	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1353	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1354	{
1544	if ( ! op->head)	1355	if (!op->head)
1545	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1356	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1357
1546	return NULL;	1358	return NULL;
1547	}	1359	}
1548	}	1360	}
		1361
1549	CLEAR_FLAG(op,FLAG_REMOVED);	1362	CLEAR_FLAG (op, FLAG_REMOVED);
1550		1363
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	1364	/* 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	1365	* of areas of callers (eg, anything that uses find_free_spot would now
1557	* need extra work	1366	* need extra work
1558	*/	1367	*/
1559	op->map=get_map_from_coord(m, &op->x, &op->y);	1368	op->map = get_map_from_coord (m, &op->x, &op->y);
1560	x = op->x;	1369	x = op->x;
1561	y = op->y;	1370	y = op->y;
1562		1371
1563	/* this has to be done after we translate the coordinates.	1372	/* this has to be done after we translate the coordinates.
1564	*/	1373	*/
1565	if(op->nrof && !(flag & INS_NO_MERGE)) {	1374	if (op->nrof && !(flag & INS_NO_MERGE))
1566	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1375	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1567	if (CAN_MERGE(op,tmp)) {	1376	if (CAN_MERGE (op, tmp))
1568	op->nrof+=tmp->nrof;	1377	{
1569	remove_ob(tmp);	1378	op->nrof += tmp->nrof;
1570	free_object(tmp);	1379	remove_ob (tmp);
1571	}	1380	free_object (tmp);
1572	}	1381	}
1573		1382
1574	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1383	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1575	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1384	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1385
1576	if (!QUERY_FLAG(op, FLAG_ALIVE))	1386	if (!QUERY_FLAG (op, FLAG_ALIVE))
1577	CLEAR_FLAG(op, FLAG_NO_STEAL);	1387	CLEAR_FLAG (op, FLAG_NO_STEAL);
1578		1388
1579	if (flag & INS_BELOW_ORIGINATOR) {	1389	if (flag & INS_BELOW_ORIGINATOR)
		1390	{
1580	if (originator->map != op->map || originator->x != op->x ||	1391	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1581	originator->y != op->y) {	1392	{
1582	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1393	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1583	abort();	1394	abort ();
1584	}	1395	}
		1396
1585	op->above = originator;	1397	op->above = originator;
1586	op->below = originator->below;	1398	op->below = originator->below;
1587	if (op->below) op->below->above = op;	1399
		1400	if (op->below)
		1401	op->below->above = op;
		1402	else
1588	else SET_MAP_OB(op->map, op->x, op->y, op);	1403	SET_MAP_OB (op->map, op->x, op->y, op);
		1404
1589	/* since *below* originator, no need to update top */	1405	/* since *below* originator, no need to update top */
1590	originator->below = op;	1406	originator->below = op;
1591	} else {	1407	}
		1408	else
		1409	{
1592	/* If there are other objects, then */	1410	/* If there are other objects, then */
1593	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1411	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1412	{
1594	object *last=NULL;	1413	object *last = NULL;
1595	/*	1414
		1415	/*
1596	* If there are multiple objects on this space, we do some trickier handling.	1416	* If there are multiple objects on this space, we do some trickier handling.
1597	* We've already dealt with merging if appropriate.	1417	* We've already dealt with merging if appropriate.
1598	* Generally, we want to put the new object on top. But if	1418	* Generally, we want to put the new object on top. But if
1599	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1419	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1600	* floor, we want to insert above that and no further.	1420	* floor, we want to insert above that and no further.
1601	* Also, if there are spell objects on this space, we stop processing	1421	* 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	1422	* 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	1423	* 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	1424	* when lots of spells are cast in one area. Currently, it is presumed
1605	* that flying non pickable objects are spell objects.	1425	* that flying non pickable objects are spell objects.
1606	*/	1426	*/
1607		1427
1608	while (top != NULL) {	1428	while (top != NULL)
1609	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||	1429	{
1610	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;	1430	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1611	if (QUERY_FLAG(top, FLAG_NO_PICK)	1431	floor = top;
1612	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))	1432
1613	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))	1433	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1614	{	1434	{
1615	/* We insert above top, so we want this object below this */	1435	/* We insert above top, so we want this object below this */
1616	top=top->below;	1436	top = top->below;
1617	break;	1437	break;
1618	}	1438	}
1619	last = top;	1439
1620	top = top->above;	1440	last = top;
1621	}	1441	top = top->above;
		1442	}
		1443
1622	/* Don't want top to be NULL, so set it to the last valid object */	1444	/* Don't want top to be NULL, so set it to the last valid object */
1623	top = last;	1445	top = last;
1624		1446
1625	/* We let update_position deal with figuring out what the space	1447	/* We let update_position deal with figuring out what the space
1626	* looks like instead of lots of conditions here.	1448	* looks like instead of lots of conditions here.
1627	* makes things faster, and effectively the same result.	1449	* makes things faster, and effectively the same result.
1628	*/	1450	*/
1629		1451
1630	/* Have object 'fall below' other objects that block view.	1452	/* Have object 'fall below' other objects that block view.
1631	* Unless those objects are exits, type 66	1453	* Unless those objects are exits, type 66
1632	* If INS_ON_TOP is used, don't do this processing	1454	* If INS_ON_TOP is used, don't do this processing
1633	* Need to find the object that in fact blocks view, otherwise	1455	* Need to find the object that in fact blocks view, otherwise
1634	* stacking is a bit odd.	1456	* stacking is a bit odd.
1635	*/	1457	*/
1636	if (!(flag & INS_ON_TOP) &&	1458	if (!(flag & INS_ON_TOP) &&
1637	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1459	(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)) {	1460	{
1639	for (last=top; last != floor; last=last->below)	1461	for (last = top; last != floor; last = last->below)
1640	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1462	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1463	break;
1641	/* Check to see if we found the object that blocks view,	1464	/* Check to see if we found the object that blocks view,
1642	* and make sure we have a below pointer for it so that	1465	* and make sure we have a below pointer for it so that
1643	* we can get inserted below this one, which requires we	1466	* we can get inserted below this one, which requires we
1644	* set top to the object below us.	1467	* set top to the object below us.
1645	*/	1468	*/
1646	if (last && last->below && last != floor) top=last->below;	1469	if (last && last->below && last != floor)
1647	}	1470	top = last->below;
1648	} /* If objects on this space */	1471	}
		1472	} /* If objects on this space */
		1473
1649	if (flag & INS_MAP_LOAD)	1474	if (flag & INS_MAP_LOAD)
1650	top = GET_MAP_TOP(op->map,op->x,op->y);	1475	top = GET_MAP_TOP (op->map, op->x, op->y);
		1476
1651	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1477	if (flag & INS_ABOVE_FLOOR_ONLY)
		1478	top = floor;
1652		1479
1653	/* Top is the object that our object (op) is going to get inserted above.	1480	/* Top is the object that our object (op) is going to get inserted above.
1654	*/	1481	*/
1655		1482
1656	/* First object on this space */	1483	/* First object on this space */
1657	if (!top) {	1484	if (!top)
		1485	{
1658	op->above = GET_MAP_OB(op->map, op->x, op->y);	1486	op->above = GET_MAP_OB (op->map, op->x, op->y);
1659	if (op->above) op->above->below = op;	1487
		1488	if (op->above)
		1489	op->above->below = op;
		1490
1660	op->below = NULL;	1491	op->below = NULL;
1661	SET_MAP_OB(op->map, op->x, op->y, op);	1492	SET_MAP_OB (op->map, op->x, op->y, op);
1662	} else { /* get inserted into the stack above top */	1493	}
		1494	else
		1495	{ /* get inserted into the stack above top */
1663	op->above = top->above;	1496	op->above = top->above;
1664	if (op->above) op->above->below = op;	1497
		1498	if (op->above)
		1499	op->above->below = op;
		1500
1665	op->below = top;	1501	op->below = top;
1666	top->above = op;	1502	top->above = op;
1667	}	1503	}
		1504
1668	if (op->above==NULL)	1505	if (op->above == NULL)
1669	SET_MAP_TOP(op->map,op->x, op->y, op);	1506	SET_MAP_TOP (op->map, op->x, op->y, op);
1670	} /* else not INS_BELOW_ORIGINATOR */	1507	} /* else not INS_BELOW_ORIGINATOR */
1671		1508
1672	if(op->type==PLAYER)	1509	if (op->type == PLAYER)
1673	op->contr->do_los=1;	1510	op->contr->do_los = 1;
1674		1511
1675	/* If we have a floor, we know the player, if any, will be above	1512	/* 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.	1513	* it, so save a few ticks and start from there.
1677	*/	1514	*/
1678	if (!(flag & INS_MAP_LOAD))	1515	if (!(flag & INS_MAP_LOAD))
1679	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1516	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1680	if (tmp->type == PLAYER)	1517	if (tmp->type == PLAYER)
1681	tmp->contr->socket.update_look=1;	1518	tmp->contr->socket.update_look = 1;
1682	}
1683		1519
1684	/* If this object glows, it may affect lighting conditions that are	1520	/* If this object glows, it may affect lighting conditions that are
1685	* visible to others on this map. But update_all_los is really	1521	* 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	1522	* 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	1523	* on the map will get recalculated. The players could very well
1688	* be far away from this change and not affected in any way -	1524	* be far away from this change and not affected in any way -
1689	* this should get redone to only look for players within range,	1525	* this should get redone to only look for players within range,
1690	* or just updating the P_NEED_UPDATE for spaces within this area	1526	* or just updating the P_NEED_UPDATE for spaces within this area
1691	* of effect may be sufficient.	1527	* of effect may be sufficient.
1692	*/	1528	*/
1693	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1529	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
1694	update_all_los(op->map, op->x, op->y);	1530	update_all_los (op->map, op->x, op->y);
1695		1531
1696
1697	/* updates flags (blocked, alive, no magic, etc) for this map space */	1532	/* updates flags (blocked, alive, no magic, etc) for this map space */
1698	update_object(op,UP_OBJ_INSERT);	1533	update_object (op, UP_OBJ_INSERT);
1699		1534
1700
1701	/* Don't know if moving this to the end will break anything. However,	1535	/* 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.	1536	* we want to have update_look set above before calling this.
1703	*	1537	*
1704	* check_move_on() must be after this because code called from	1538	* check_move_on() must be after this because code called from
1705	* check_move_on() depends on correct map flags (so functions like	1539	* check_move_on() depends on correct map flags (so functions like
1706	* blocked() and wall() work properly), and these flags are updated by	1540	* blocked() and wall() work properly), and these flags are updated by
1707	* update_object().	1541	* update_object().
1708	*/	1542	*/
1709		1543
1710	/* if this is not the head or flag has been passed, don't check walk on status */	1544	/* 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) {	1545	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1546	{
1713	if (check_move_on(op, originator))	1547	if (check_move_on (op, originator))
1714	return NULL;	1548	return NULL;
1715		1549
1716	/* If we are a multi part object, lets work our way through the check	1550	/* If we are a multi part object, lets work our way through the check
1717	* walk on's.	1551	* walk on's.
1718	*/	1552	*/
1719	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1553	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1720	if (check_move_on (tmp, originator))	1554	if (check_move_on (tmp, originator))
1721	return NULL;	1555	return NULL;
1722	}	1556	}
		1557
1723	return op;	1558	return op;
1724	}	1559	}
1725		1560
1726	/* this function inserts an object in the map, but if it	1561	/* 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.	1562	* 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.	1563	* op is the object to insert it under: supplies x and the map.
1729	*/	1564	*/
		1565	void
1730	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1566	replace_insert_ob_in_map (const char *arch_string, object *op)
		1567	{
1731	object *tmp;	1568	object *
1732	object *tmp1;	1569	tmp;
		1570	object *
		1571	tmp1;
1733		1572
1734	/* first search for itself and remove any old instances */	1573	/* first search for itself and remove any old instances */
1735		1574
1736	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1575	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
		1576	{
1737	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1577	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
		1578	{
1738	remove_ob(tmp);	1579	remove_ob (tmp);
1739	free_object(tmp);	1580	free_object (tmp);
1740	}	1581	}
1741	}	1582	}
1742		1583
1743	tmp1=arch_to_object(find_archetype(arch_string));	1584	tmp1 = arch_to_object (archetype::find (arch_string));
1744		1585
1745		1586	tmp1->x = op->x;
1746	tmp1->x = op->x; tmp1->y = op->y;	1587	tmp1->y = op->y;
1747	insert_ob_in_map(tmp1,op->map,op,0);	1588	insert_ob_in_map (tmp1, op->map, op, 0);
1748	}	1589	}
1749		1590
1750	/*	1591	/*
1751	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1592	* 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	1593	* is returned contains nr objects, and the remaining parts contains
1753	* the rest (or is removed and freed if that number is 0).	1594	* the rest (or is removed and freed if that number is 0).
1754	* On failure, NULL is returned, and the reason put into the	1595	* On failure, NULL is returned, and the reason put into the
1755	* global static errmsg array.	1596	* global static errmsg array.
1756	*/	1597	*/
1757		1598
		1599	object *
1758	object *get_split_ob(object *orig_ob, uint32 nr) {	1600	get_split_ob (object *orig_ob, uint32 nr)
1759	object *newob;	1601	{
		1602	object *
		1603	newob;
		1604	int
1760	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1605	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1761		1606
1762	if(orig_ob->nrof<nr) {	1607	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	}	1608	{
		1609	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
		1610	return NULL;
		1611	}
		1612
1767	newob = object_create_clone(orig_ob);	1613	newob = object_create_clone (orig_ob);
		1614
1768	if((orig_ob->nrof-=nr)<1) {	1615	if ((orig_ob->nrof -= nr) < 1)
		1616	{
1769	if ( ! is_removed)	1617	if (!is_removed)
1770	remove_ob(orig_ob);	1618	remove_ob (orig_ob);
1771	free_object2(orig_ob, 1);	1619	free_object2 (orig_ob, 1);
1772	}	1620	}
1773	else if ( ! is_removed) {	1621	else if (!is_removed)
		1622	{
1774	if(orig_ob->env!=NULL)	1623	if (orig_ob->env != NULL)
1775	sub_weight (orig_ob->env,orig_ob->weight*nr);	1624	sub_weight (orig_ob->env, orig_ob->weight * nr);
1776	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1625	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1626	{
1777	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1627	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");	1628	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1780	return NULL;	1629	return NULL;
1781	}	1630	}
1782	}	1631	}
		1632
1783	newob->nrof=nr;	1633	newob->nrof = nr;
1784		1634
1785	return newob;	1635	return newob;
1786	}	1636	}
1787		1637
1788	/*	1638	/*
1789	* decrease_ob_nr(object, number) decreases a specified number from	1639	* decrease_ob_nr(object, number) decreases a specified number from
1790	* the amount of an object. If the amount reaches 0, the object	1640	* the amount of an object. If the amount reaches 0, the object
1791	* is subsequently removed and freed.	1641	* is subsequently removed and freed.
1792	*	1642	*
1793	* Return value: 'op' if something is left, NULL if the amount reached 0	1643	* Return value: 'op' if something is left, NULL if the amount reached 0
1794	*/	1644	*/
1795		1645
		1646	object *
1796	object *decrease_ob_nr (object *op, uint32 i)	1647	decrease_ob_nr (object *op, uint32 i)
1797	{	1648	{
1798	object *tmp;	1649	object *tmp;
1799	player *pl;	1650	player *pl;
1800		1651
1801	if (i == 0) /* objects with op->nrof require this check */	1652	if (i == 0) /* objects with op->nrof require this check */
1802	return op;	1653	return op;
1803		1654
1804	if (i > op->nrof)	1655	if (i > op->nrof)
1805	i = op->nrof;	1656	i = op->nrof;
1806		1657
1807	if (QUERY_FLAG (op, FLAG_REMOVED))	1658	if (QUERY_FLAG (op, FLAG_REMOVED))
		1659	op->nrof -= i;
		1660	else if (op->env != NULL)
		1661	{
		1662	/* is this object in the players inventory, or sub container
		1663	* therein?
		1664	*/
		1665	tmp = is_player_inv (op->env);
		1666	/* nope. Is this a container the player has opened?
		1667	* If so, set tmp to that player.
		1668	* IMO, searching through all the players will mostly
		1669	* likely be quicker than following op->env to the map,
		1670	* and then searching the map for a player.
		1671	*/
		1672	if (!tmp)
		1673	{
		1674	for (pl = first_player; pl; pl = pl->next)
		1675	if (pl->ob->container == op->env)
		1676	break;
		1677	if (pl)
		1678	tmp = pl->ob;
		1679	else
		1680	tmp = NULL;
		1681	}
		1682
		1683	if (i < op->nrof)
		1684	{
		1685	sub_weight (op->env, op->weight * i);
		1686	op->nrof -= i;
		1687	if (tmp)
		1688	{
		1689	esrv_send_item (tmp, op);
		1690	}
		1691	}
		1692	else
		1693	{
		1694	remove_ob (op);
		1695	op->nrof = 0;
		1696	if (tmp)
		1697	{
		1698	esrv_del_item (tmp->contr, op->count);
		1699	}
		1700	}
1808	{	1701	}
		1702	else
		1703	{
		1704	object *above = op->above;
		1705
		1706	if (i < op->nrof)
1809	op->nrof -= i;	1707	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 {	1708	else
		1709	{
1837	remove_ob (op);	1710	remove_ob (op);
1838	op->nrof = 0;	1711	op->nrof = 0;
1839	if (tmp) {
1840	esrv_del_item(tmp->contr, op->count);
1841	}	1712	}
1842	}
1843	}
1844	else
1845	{
1846	object *above = op->above;
1847		1713
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 */	1714	/* Since we just removed op, op->above is null */
1855	for (tmp = above; tmp != NULL; tmp = tmp->above)	1715	for (tmp = above; tmp != NULL; tmp = tmp->above)
1856	if (tmp->type == PLAYER) {	1716	if (tmp->type == PLAYER)
		1717	{
1857	if (op->nrof)	1718	if (op->nrof)
1858	esrv_send_item(tmp, op);	1719	esrv_send_item (tmp, op);
1859	else	1720	else
1860	esrv_del_item(tmp->contr, op->count);	1721	esrv_del_item (tmp->contr, op->count);
1861	}	1722	}
1862	}	1723	}
1863		1724
1864	if (op->nrof) {	1725	if (op->nrof)
1865	return op;	1726	return op;
1866	} else {	1727	else
		1728	{
1867	free_object (op);	1729	free_object (op);
1868	return NULL;	1730	return NULL;
1869	}	1731	}
1870	}	1732	}
1871		1733
1872	/*	1734	/*
1873	* add_weight(object, weight) adds the specified weight to an object,	1735	* add_weight(object, weight) adds the specified weight to an object,
1874	* and also updates how much the environment(s) is/are carrying.	1736	* and also updates how much the environment(s) is/are carrying.
1875	*/	1737	*/
1876		1738
		1739	void
1877	void add_weight (object *op, signed long weight) {	1740	add_weight (object *op, signed long weight)
		1741	{
1878	while (op!=NULL) {	1742	while (op != NULL)
		1743	{
1879	if (op->type == CONTAINER) {	1744	if (op->type == CONTAINER)
1880	weight=(signed long)(weight*(100-op->stats.Str)/100);	1745	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1881	}	1746
1882	op->carrying+=weight;	1747	op->carrying += weight;
1883	op=op->env;	1748	op = op->env;
1884	}	1749	}
1885	}	1750	}
1886		1751
1887	/*	1752	/*
1888	* insert_ob_in_ob(op,environment):	1753	* insert_ob_in_ob(op,environment):
1889	* This function inserts the object op in the linked list	1754	* This function inserts the object op in the linked list
…		…
1896	*	1761	*
1897	* The function returns now pointer to inserted item, and return value can	1762	* The function returns now pointer to inserted item, and return value can
1898	* be != op, if items are merged. -Tero	1763	* be != op, if items are merged. -Tero
1899	*/	1764	*/
1900		1765
		1766	object *
1901	object *insert_ob_in_ob(object *op,object *where) {	1767	insert_ob_in_ob (object *op, object *where)
1902	object *tmp, *otmp;	1768	{
		1769	object *
		1770	tmp, *
		1771	otmp;
1903		1772
1904	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1773	if (!QUERY_FLAG (op, FLAG_REMOVED))
1905	dump_object(op);	1774	{
		1775	char *dump = dump_object (op);
1906	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1776	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", dump);
		1777	free (dump);
1907	return op;	1778	return op;
1908	}	1779	}
		1780
1909	if(where==NULL) {	1781	if (where == NULL)
1910	dump_object(op);	1782	{
		1783	char *dump = dump_object (op);
1911	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);	1784	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1785	free (dump);
1912	return op;	1786	return op;
1913	}	1787	}
		1788
1914	if (where->head) {	1789	if (where->head)
1915	LOG(llevDebug,	1790	{
1916	"Warning: Tried to insert object wrong part of multipart object.\n");	1791	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1917	where = where->head;	1792	where = where->head;
1918	}	1793	}
		1794
1919	if (op->more) {	1795	if (op->more)
		1796	{
1920	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1797	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1921	op->name, op->count);
1922	return op;	1798	return op;
1923	}	1799	}
		1800
1924	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1801	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1925	CLEAR_FLAG(op, FLAG_REMOVED);	1802	CLEAR_FLAG (op, FLAG_REMOVED);
1926	if(op->nrof) {	1803	if (op->nrof)
		1804	{
1927	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1805	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)
1928	if ( CAN_MERGE(tmp,op) ) {	1806	if (CAN_MERGE (tmp, op))
		1807	{
1929	/* return the original object and remove inserted object	1808	/* return the original object and remove inserted object
1930	(client needs the original object) */	1809	(client needs the original object) */
1931	tmp->nrof += op->nrof;	1810	tmp->nrof += op->nrof;
1932	/* Weight handling gets pretty funky. Since we are adding to	1811	/* Weight handling gets pretty funky. Since we are adding to
1933	* tmp->nrof, we need to increase the weight.	1812	* tmp->nrof, we need to increase the weight.
1934	*/	1813	*/
1935	add_weight (where, op->weight*op->nrof);	1814	add_weight (where, op->weight * op->nrof);
1936	SET_FLAG(op, FLAG_REMOVED);	1815	SET_FLAG (op, FLAG_REMOVED);
1937	free_object(op); /* free the inserted object */	1816	free_object (op); /* free the inserted object */
1938	op = tmp;	1817	op = tmp;
1939	remove_ob (op); /* and fix old object's links */	1818	remove_ob (op); /* and fix old object's links */
1940	CLEAR_FLAG(op, FLAG_REMOVED);	1819	CLEAR_FLAG (op, FLAG_REMOVED);
1941	break;	1820	break;
1942	}	1821	}
1943		1822
1944	/* I assume combined objects have no inventory	1823	/* I assume combined objects have no inventory
1945	* We add the weight - this object could have just been removed	1824	* We add the weight - this object could have just been removed
1946	* (if it was possible to merge). calling remove_ob will subtract	1825	* (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	1826	* the weight, so we need to add it in again, since we actually do
1948	* the linking below	1827	* the linking below
1949	*/	1828	*/
1950	add_weight (where, op->weight*op->nrof);	1829	add_weight (where, op->weight * op->nrof);
		1830	}
1951	} else	1831	else
1952	add_weight (where, (op->weight+op->carrying));	1832	add_weight (where, (op->weight + op->carrying));
1953		1833
1954	otmp=is_player_inv(where);	1834	otmp = is_player_inv (where);
1955	if (otmp&&otmp->contr!=NULL) {	1835	if (otmp && otmp->contr != NULL)
		1836	{
1956	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1837	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1957	fix_player(otmp);	1838	fix_player (otmp);
1958	}	1839	}
1959		1840
1960	op->map=NULL;	1841	op->map = NULL;
1961	op->env=where;	1842	op->env = where;
1962	op->above=NULL;	1843	op->above = NULL;
1963	op->below=NULL;	1844	op->below = NULL;
1964	op->x=0,op->y=0;	1845	op->x = 0, op->y = 0;
1965	op->ox=0,op->oy=0;
1966		1846
1967	/* reset the light list and los of the players on the map */	1847	/* reset the light list and los of the players on the map */
1968	if((op->glow_radius!=0)&&where->map)	1848	if ((op->glow_radius != 0) && where->map)
1969	{	1849	{
1970	#ifdef DEBUG_LIGHTS	1850	#ifdef DEBUG_LIGHTS
1971	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1851	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1972	op->name);
1973	#endif /* DEBUG_LIGHTS */	1852	#endif /* DEBUG_LIGHTS */
		1853	if (MAP_DARKNESS (where->map))
1974	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1854	update_all_los (where->map, where->x, where->y);
1975	}	1855	}
1976		1856
1977	/* Client has no idea of ordering so lets not bother ordering it here.	1857	/* Client has no idea of ordering so lets not bother ordering it here.
1978	* It sure simplifies this function...	1858	* It sure simplifies this function...
1979	*/	1859	*/
1980	if (where->inv==NULL)	1860	if (where->inv == NULL)
1981	where->inv=op;	1861	where->inv = op;
1982	else {	1862	else
		1863	{
1983	op->below = where->inv;	1864	op->below = where->inv;
1984	op->below->above = op;	1865	op->below->above = op;
1985	where->inv = op;	1866	where->inv = op;
1986	}	1867	}
1987	return op;	1868	return op;
1988	}	1869	}
1989		1870
1990	/*	1871	/*
1991	* Checks if any objects has a move_type that matches objects	1872	* 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	1887	* 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	1888	* object being inserted. insert_ob_in_map may not put new objects
2008	* on top.	1889	* on top.
2009	*/	1890	*/
2010		1891
		1892	int
2011	int check_move_on (object *op, object *originator)	1893	check_move_on (object *op, object *originator)
2012	{	1894	{
2013	object *tmp;	1895	object *tmp;
2014	tag_t tag;
2015	mapstruct *m=op->map;	1896	maptile *m = op->map;
2016	int x=op->x, y=op->y;	1897	int x = op->x, y = op->y;
		1898
2017	MoveType move_on, move_slow, move_block;	1899	MoveType move_on, move_slow, move_block;
2018		1900
2019	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1901	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;	1902	return 0;
		1903
		1904	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1905	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		1906	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		1907
		1908	/* if nothing on this space will slow op down or be applied,
		1909	* no need to do checking below. have to make sure move_type
		1910	* is set, as lots of objects don't have it set - we treat that
		1911	* as walking.
		1912	*/
		1913	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		1914	return 0;
		1915
		1916	/* This is basically inverse logic of that below - basically,
		1917	* if the object can avoid the move on or slow move, they do so,
		1918	* but can't do it if the alternate movement they are using is
		1919	* blocked. Logic on this seems confusing, but does seem correct.
		1920	*/
		1921	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		1922	return 0;
		1923
		1924	/* The objects have to be checked from top to bottom.
		1925	* Hence, we first go to the top:
		1926	*/
		1927
		1928	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
		1929	{
		1930	/* Trim the search when we find the first other spell effect
		1931	* this helps performance so that if a space has 50 spell objects,
		1932	* we don't need to check all of them.
		1933	*/
		1934	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1935	break;
		1936	}
		1937
		1938	for (; tmp; tmp = tmp->below)
		1939	{
		1940	if (tmp == op)
		1941	continue; /* Can't apply yourself */
		1942
		1943	/* Check to see if one of the movement types should be slowed down.
		1944	* Second check makes sure that the movement types not being slowed
		1945	* (~slow_move) is not blocked on this space - just because the
		1946	* space doesn't slow down swimming (for example), if you can't actually
		1947	* swim on that space, can't use it to avoid the penalty.
		1948	*/
		1949	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1950	{
		1951	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		1952	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1953	{
		1954
		1955	float
		1956	diff = tmp->move_slow_penalty * FABS (op->speed);
		1957
		1958	if (op->type == PLAYER)
		1959	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		1960	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		1961	diff /= 4.0;
		1962
		1963	op->speed_left -= diff;
		1964	}
		1965	}
		1966
		1967	/* Basically same logic as above, except now for actual apply. */
		1968	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		1969	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		1970	{
		1971	move_apply (tmp, op, originator);
		1972
		1973	if (op->destroyed ())
		1974	return 1;
		1975
		1976	/* what the person/creature stepped onto has moved the object
		1977	* someplace new. Don't process any further - if we did,
		1978	* have a feeling strange problems would result.
		1979	*/
		1980	if (op->map != m || op->x != x || op->y != y)
		1981	return 0;
		1982	}
		1983	}
		1984
		1985	return 0;
2100	}	1986	}
2101		1987
2102	/*	1988	/*
2103	* present_arch(arch, map, x, y) searches for any objects with	1989	* present_arch(arch, map, x, y) searches for any objects with
2104	* a matching archetype at the given map and coordinates.	1990	* a matching archetype at the given map and coordinates.
2105	* The first matching object is returned, or NULL if none.	1991	* The first matching object is returned, or NULL if none.
2106	*/	1992	*/
2107		1993
		1994	object *
2108	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1995	present_arch (const archetype *at, maptile *m, int x, int y)
		1996	{
2109	object *tmp;	1997	object *
		1998	tmp;
		1999
2110	if(m==NULL || out_of_map(m,x,y)) {	2000	if (m == NULL || out_of_map (m, x, y))
		2001	{
2111	LOG(llevError,"Present_arch called outside map.\n");	2002	LOG (llevError, "Present_arch called outside map.\n");
2112	return NULL;	2003	return NULL;
2113	}	2004	}
2114	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	2005	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2115	if(tmp->arch == at)	2006	if (tmp->arch == at)
2116	return tmp;	2007	return tmp;
2117	return NULL;	2008	return NULL;
2118	}	2009	}
2119		2010
2120	/*	2011	/*
2121	* present(type, map, x, y) searches for any objects with	2012	* present(type, map, x, y) searches for any objects with
2122	* a matching type variable at the given map and coordinates.	2013	* a matching type variable at the given map and coordinates.
2123	* The first matching object is returned, or NULL if none.	2014	* The first matching object is returned, or NULL if none.
2124	*/	2015	*/
2125		2016
		2017	object *
2126	object *present(unsigned char type,mapstruct *m, int x,int y) {	2018	present (unsigned char type, maptile *m, int x, int y)
		2019	{
2127	object *tmp;	2020	object *
		2021	tmp;
		2022
2128	if(out_of_map(m,x,y)) {	2023	if (out_of_map (m, x, y))
		2024	{
2129	LOG(llevError,"Present called outside map.\n");	2025	LOG (llevError, "Present called outside map.\n");
2130	return NULL;	2026	return NULL;
2131	}	2027	}
2132	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	2028	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2133	if(tmp->type==type)	2029	if (tmp->type == type)
2134	return tmp;	2030	return tmp;
2135	return NULL;	2031	return NULL;
2136	}	2032	}
2137		2033
2138	/*	2034	/*
2139	* present_in_ob(type, object) searches for any objects with	2035	* present_in_ob(type, object) searches for any objects with
2140	* a matching type variable in the inventory of the given object.	2036	* a matching type variable in the inventory of the given object.
2141	* The first matching object is returned, or NULL if none.	2037	* The first matching object is returned, or NULL if none.
2142	*/	2038	*/
2143		2039
		2040	object *
2144	object *present_in_ob(unsigned char type, const object *op) {	2041	present_in_ob (unsigned char type, const object *op)
		2042	{
2145	object *tmp;	2043	object *
		2044	tmp;
		2045
2146	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2046	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2147	if(tmp->type==type)	2047	if (tmp->type == type)
2148	return tmp;	2048	return tmp;
2149	return NULL;	2049	return NULL;
2150	}	2050	}
2151		2051
2152	/*	2052	/*
…		…
2162	* the object name, not the archetype name. this is so that the	2062	* 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	2063	* spell code can use one object type (force), but change it's name
2164	* to be unique.	2064	* to be unique.
2165	*/	2065	*/
2166		2066
		2067	object *
2167	object *present_in_ob_by_name(int type, const char *str, const object *op) {	2068	present_in_ob_by_name (int type, const char *str, const object *op)
		2069	{
2168	object *tmp;	2070	object *
		2071	tmp;
2169		2072
2170	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	2073	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2074	{
2171	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	2075	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2172	return tmp;	2076	return tmp;
2173	}	2077	}
2174	return NULL;	2078	return NULL;
2175	}	2079	}
2176		2080
2177	/*	2081	/*
2178	* present_arch_in_ob(archetype, object) searches for any objects with	2082	* present_arch_in_ob(archetype, object) searches for any objects with
2179	* a matching archetype in the inventory of the given object.	2083	* a matching archetype in the inventory of the given object.
2180	* The first matching object is returned, or NULL if none.	2084	* The first matching object is returned, or NULL if none.
2181	*/	2085	*/
2182		2086
		2087	object *
2183	object *present_arch_in_ob(const archetype *at, const object *op) {	2088	present_arch_in_ob (const archetype *at, const object *op)
		2089	{
2184	object *tmp;	2090	object *
		2091	tmp;
		2092
2185	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2093	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2186	if( tmp->arch == at)	2094	if (tmp->arch == at)
2187	return tmp;	2095	return tmp;
2188	return NULL;	2096	return NULL;
2189	}	2097	}
2190		2098
2191	/*	2099	/*
2192	* activate recursively a flag on an object inventory	2100	* activate recursively a flag on an object inventory
2193	*/	2101	*/
		2102	void
2194	void flag_inv(object*op, int flag){	2103	flag_inv (object *op, int flag)
		2104	{
2195	object *tmp;	2105	object *
		2106	tmp;
		2107
2196	if(op->inv)	2108	if (op->inv)
2197	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2109	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2110	{
2198	SET_FLAG(tmp, flag);	2111	SET_FLAG (tmp, flag);
2199	flag_inv(tmp,flag);	2112	flag_inv (tmp, flag);
2200	}	2113	}
2201	}/*	2114	} /*
2202	* desactivate recursively a flag on an object inventory	2115	* desactivate recursively a flag on an object inventory
2203	*/	2116	*/
		2117	void
2204	void unflag_inv(object*op, int flag){	2118	unflag_inv (object *op, int flag)
		2119	{
2205	object *tmp;	2120	object *
		2121	tmp;
		2122
2206	if(op->inv)	2123	if (op->inv)
2207	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2124	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2125	{
2208	CLEAR_FLAG(tmp, flag);	2126	CLEAR_FLAG (tmp, flag);
2209	unflag_inv(tmp,flag);	2127	unflag_inv (tmp, flag);
2210	}	2128	}
2211	}	2129	}
2212		2130
2213	/*	2131	/*
2214	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	2132	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2215	* all it's inventory (recursively).	2133	* all it's inventory (recursively).
2216	* If checksums are used, a player will get set_cheat called for	2134	* 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.	2135	* him/her-self and all object carried by a call to this function.
2218	*/	2136	*/
2219		2137
		2138	void
2220	void set_cheat(object *op) {	2139	set_cheat (object *op)
		2140	{
2221	SET_FLAG(op, FLAG_WAS_WIZ);	2141	SET_FLAG (op, FLAG_WAS_WIZ);
2222	flag_inv(op, FLAG_WAS_WIZ);	2142	flag_inv (op, FLAG_WAS_WIZ);
2223	}	2143	}
2224		2144
2225	/*	2145	/*
2226	* find_free_spot(object, map, x, y, start, stop) will search for	2146	* 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	2147	* 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	2162	* 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	2163	* the archetype because that isn't correct if the monster has been
2244	* customized, changed states, etc.	2164	* customized, changed states, etc.
2245	*/	2165	*/
2246		2166
		2167	int
2247	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2168	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2169	{
		2170	int
		2171	i,
2248	int i,index=0, flag;	2172	index = 0, flag;
		2173	static int
2249	static int altern[SIZEOFFREE];	2174	altern[SIZEOFFREE];
2250		2175
2251	for(i=start;i<stop;i++) {	2176	for (i = start; i < stop; i++)
		2177	{
2252	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2178	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2253	if(!flag)	2179	if (!flag)
2254	altern[index++]=i;	2180	altern[index++] = i;
2255		2181
2256	/* Basically, if we find a wall on a space, we cut down the search size.	2182	/* 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.	2183	* 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 -	2184	* 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	2185	* 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	2186	* spaces in all the other directions, this will reduce the search space
2261	* to only the spaces immediately surrounding the target area, and	2187	* to only the spaces immediately surrounding the target area, and
2262	* won't look 2 spaces south of the target space.	2188	* won't look 2 spaces south of the target space.
2263	*/	2189	*/
2264	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2190	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)
2265	stop=maxfree[i];	2191	stop = maxfree[i];
2266	}	2192	}
2267	if(!index) return -1;	2193	if (!index)
		2194	return -1;
2268	return altern[RANDOM()%index];	2195	return altern[RANDOM () % index];
2269	}	2196	}
2270		2197
2271	/*	2198	/*
2272	* find_first_free_spot(archetype, mapstruct, x, y) works like	2199	* find_first_free_spot(archetype, maptile, x, y) works like
2273	* find_free_spot(), but it will search max number of squares.	2200	* find_free_spot(), but it will search max number of squares.
2274	* But it will return the first available spot, not a random choice.	2201	* 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.	2202	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2276	*/	2203	*/
2277		2204
		2205	int
2278	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2206	find_first_free_spot (const object *ob, maptile *m, int x, int y)
		2207	{
		2208	int
2279	int i;	2209	i;
		2210
2280	for(i=0;i<SIZEOFFREE;i++) {	2211	for (i = 0; i < SIZEOFFREE; i++)
		2212	{
2281	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2213	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2282	return i;	2214	return i;
2283	}	2215	}
2284	return -1;	2216	return -1;
2285	}	2217	}
2286		2218
2287	/*	2219	/*
2288	* The function permute(arr, begin, end) randomly reorders the array	2220	* The function permute(arr, begin, end) randomly reorders the array
2289	* arr[begin..end-1].	2221	* arr[begin..end-1].
2290	*/	2222	*/
		2223	static void
2291	static void permute(int *arr, int begin, int end)	2224	permute (int *arr, int begin, int end)
2292	{	2225	{
2293	int i, j, tmp, len;	2226	int
		2227	i,
		2228	j,
		2229	tmp,
		2230	len;
2294		2231
2295	len = end-begin;	2232	len = end - begin;
2296	for(i = begin; i < end; i++)	2233	for (i = begin; i < end; i++)
2297	{	2234	{
2298	j = begin+RANDOM()%len;	2235	j = begin + RANDOM () % len;
2299		2236
2300	tmp = arr[i];	2237	tmp = arr[i];
2301	arr[i] = arr[j];	2238	arr[i] = arr[j];
2302	arr[j] = tmp;	2239	arr[j] = tmp;
2303	}	2240	}
2304	}	2241	}
2305		2242
2306	/* new function to make monster searching more efficient, and effective!	2243	/* new function to make monster searching more efficient, and effective!
2307	* This basically returns a randomized array (in the passed pointer) of	2244	* 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	2245	* 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	2246	* 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	2247	* 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.	2248	* the 3x3 area will be searched, just not in a predictable order.
2312	*/	2249	*/
		2250	void
2313	void get_search_arr(int *search_arr)	2251	get_search_arr (int *search_arr)
2314	{	2252	{
		2253	int
2315	int i;	2254	i;
2316		2255
2317	for(i = 0; i < SIZEOFFREE; i++)	2256	for (i = 0; i < SIZEOFFREE; i++)
2318	{	2257	{
2319	search_arr[i] = i;	2258	search_arr[i] = i;
2320	}	2259	}
2321		2260
2322	permute(search_arr, 1, SIZEOFFREE1+1);	2261	permute (search_arr, 1, SIZEOFFREE1 + 1);
2323	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2262	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2324	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2263	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2325	}	2264	}
2326		2265
2327	/*	2266	/*
2328	* find_dir(map, x, y, exclude) will search some close squares in the	2267	* find_dir(map, x, y, exclude) will search some close squares in the
2329	* given map at the given coordinates for live objects.	2268	* given map at the given coordinates for live objects.
…		…
2335	* is actually want is going to try and move there. We need this info	2274	* 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	2275	* because we have to know what movement the thing looking to move
2337	* there is capable of.	2276	* there is capable of.
2338	*/	2277	*/
2339		2278
		2279	int
2340	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2280	find_dir (maptile *m, int x, int y, object *exclude)
		2281	{
		2282	int
		2283	i,
2341	int i,max=SIZEOFFREE, mflags;	2284	max = SIZEOFFREE, mflags;
		2285
2342	sint16 nx, ny;	2286	sint16 nx, ny;
2343	object *tmp;	2287	object *
2344	mapstruct *mp;	2288	tmp;
		2289	maptile *
		2290	mp;
		2291
2345	MoveType blocked, move_type;	2292	MoveType blocked, move_type;
2346		2293
2347	if (exclude && exclude->head) {	2294	if (exclude && exclude->head)
		2295	{
2348	exclude = exclude->head;	2296	exclude = exclude->head;
2349	move_type = exclude->move_type;	2297	move_type = exclude->move_type;
2350	} else {	2298	}
		2299	else
		2300	{
2351	/* If we don't have anything, presume it can use all movement types. */	2301	/* If we don't have anything, presume it can use all movement types. */
2352	move_type=MOVE_ALL;	2302	move_type = MOVE_ALL;
		2303	}
		2304
		2305	for (i = 1; i < max; i++)
2353	}	2306	{
2354		2307	mp = m;
2355	for(i=1;i<max;i++) {
2356	mp = m;
2357	nx = x + freearr_x[i];	2308	nx = x + freearr_x[i];
2358	ny = y + freearr_y[i];	2309	ny = y + freearr_y[i];
2359		2310
2360	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2311	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
2361	if (mflags & P_OUT_OF_MAP) {	2312	if (mflags & P_OUT_OF_MAP)
		2313	{
2362	max = maxfree[i];	2314	max = maxfree[i];
2363	} else {	2315	}
		2316	else
		2317	{
2364	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2318	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
2365		2319
2366	if ((move_type & blocked) == move_type) {	2320	if ((move_type & blocked) == move_type)
2367	max=maxfree[i];	2321	{
		2322	max = maxfree[i];
		2323	}
2368	} else if (mflags & P_IS_ALIVE) {	2324	else if (mflags & P_IS_ALIVE)
		2325	{
2369	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2326	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2370	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2327	{
2371	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2328	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2372	break;	2329	{
2373	}	2330	break;
2374	}	2331	}
2375	if(tmp) {	2332	}
2376	return freedir[i];	2333	if (tmp)
2377	}	2334	{
		2335	return freedir[i];
		2336	}
		2337	}
		2338	}
2378	}	2339	}
2379	}
2380	}
2381	return 0;	2340	return 0;
2382	}	2341	}
2383		2342
2384	/*	2343	/*
2385	* distance(object 1, object 2) will return the square of the	2344	* distance(object 1, object 2) will return the square of the
2386	* distance between the two given objects.	2345	* distance between the two given objects.
2387	*/	2346	*/
2388		2347
		2348	int
2389	int distance(const object *ob1, const object *ob2) {	2349	distance (const object *ob1, const object *ob2)
		2350	{
2390	int i;	2351	int
2391	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2352	i;
2392	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2353
		2354	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2393	return i;	2355	return i;
2394	}	2356	}
2395		2357
2396	/*	2358	/*
2397	* find_dir_2(delta-x,delta-y) will return a direction in which	2359	* 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	2360	* an object which has subtracted the x and y coordinates of another
2399	* object, needs to travel toward it.	2361	* object, needs to travel toward it.
2400	*/	2362	*/
2401		2363
		2364	int
2402	int find_dir_2(int x, int y) {	2365	find_dir_2 (int x, int y)
		2366	{
2403	int q;	2367	int
		2368	q;
2404		2369
2405	if(y)	2370	if (y)
2406	q=x*100/y;	2371	q = x * 100 / y;
2407	else if (x)	2372	else if (x)
2408	q= -300*x;	2373	q = -300 * x;
2409	else	2374	else
2410	return 0;	2375	return 0;
2411		2376
2412	if(y>0) {	2377	if (y > 0)
		2378	{
2413	if(q < -242)	2379	if (q < -242)
2414	return 3 ;	2380	return 3;
2415	if (q < -41)	2381	if (q < -41)
2416	return 2 ;	2382	return 2;
2417	if (q < 41)	2383	if (q < 41)
2418	return 1 ;	2384	return 1;
2419	if (q < 242)	2385	if (q < 242)
2420	return 8 ;	2386	return 8;
2421	return 7 ;	2387	return 7;
2422	}	2388	}
2423		2389
2424	if (q < -242)	2390	if (q < -242)
2425	return 7 ;	2391	return 7;
2426	if (q < -41)	2392	if (q < -41)
2427	return 6 ;	2393	return 6;
2428	if (q < 41)	2394	if (q < 41)
2429	return 5 ;	2395	return 5;
2430	if (q < 242)	2396	if (q < 242)
2431	return 4 ;	2397	return 4;
2432		2398
2433	return 3 ;	2399	return 3;
2434	}	2400	}
2435		2401
2436	/*	2402	/*
2437	* absdir(int): Returns a number between 1 and 8, which represent	2403	* absdir(int): Returns a number between 1 and 8, which represent
2438	* the "absolute" direction of a number (it actually takes care of	2404	* the "absolute" direction of a number (it actually takes care of
2439	* "overflow" in previous calculations of a direction).	2405	* "overflow" in previous calculations of a direction).
2440	*/	2406	*/
2441		2407
		2408	int
2442	int absdir(int d) {	2409	absdir (int d)
2443	while(d<1) d+=8;	2410	{
2444	while(d>8) d-=8;	2411	while (d < 1)
		2412	d += 8;
		2413	while (d > 8)
		2414	d -= 8;
2445	return d;	2415	return d;
2446	}	2416	}
2447		2417
2448	/*	2418	/*
2449	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2419	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2450	* between two directions (which are expected to be absolute (see absdir())	2420	* between two directions (which are expected to be absolute (see absdir())
2451	*/	2421	*/
2452		2422
		2423	int
2453	int dirdiff(int dir1, int dir2) {	2424	dirdiff (int dir1, int dir2)
		2425	{
2454	int d;	2426	int
		2427	d;
		2428
2455	d = abs(dir1 - dir2);	2429	d = abs (dir1 - dir2);
2456	if(d>4)	2430	if (d > 4)
2457	d = 8 - d;	2431	d = 8 - d;
2458	return d;	2432	return d;
2459	}	2433	}
2460		2434
2461	/* peterm:	2435	/* peterm:
…		…
2466	* direction 4, 14, or 16 to get back to where we are.	2440	* 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	2441	* Moved from spell_util.c to object.c with the other related direction
2468	* functions.	2442	* functions.
2469	*/	2443	*/
2470		2444
		2445	int
2471	int reduction_dir[SIZEOFFREE][3] = {	2446	reduction_dir[SIZEOFFREE][3] = {
2472	{0,0,0}, /* 0 */	2447	{0, 0, 0}, /* 0 */
2473	{0,0,0}, /* 1 */	2448	{0, 0, 0}, /* 1 */
2474	{0,0,0}, /* 2 */	2449	{0, 0, 0}, /* 2 */
2475	{0,0,0}, /* 3 */	2450	{0, 0, 0}, /* 3 */
2476	{0,0,0}, /* 4 */	2451	{0, 0, 0}, /* 4 */
2477	{0,0,0}, /* 5 */	2452	{0, 0, 0}, /* 5 */
2478	{0,0,0}, /* 6 */	2453	{0, 0, 0}, /* 6 */
2479	{0,0,0}, /* 7 */	2454	{0, 0, 0}, /* 7 */
2480	{0,0,0}, /* 8 */	2455	{0, 0, 0}, /* 8 */
2481	{8,1,2}, /* 9 */	2456	{8, 1, 2}, /* 9 */
2482	{1,2,-1}, /* 10 */	2457	{1, 2, -1}, /* 10 */
2483	{2,10,12}, /* 11 */	2458	{2, 10, 12}, /* 11 */
2484	{2,3,-1}, /* 12 */	2459	{2, 3, -1}, /* 12 */
2485	{2,3,4}, /* 13 */	2460	{2, 3, 4}, /* 13 */
2486	{3,4,-1}, /* 14 */	2461	{3, 4, -1}, /* 14 */
2487	{4,14,16}, /* 15 */	2462	{4, 14, 16}, /* 15 */
2488	{5,4,-1}, /* 16 */	2463	{5, 4, -1}, /* 16 */
2489	{4,5,6}, /* 17 */	2464	{4, 5, 6}, /* 17 */
2490	{6,5,-1}, /* 18 */	2465	{6, 5, -1}, /* 18 */
2491	{6,20,18}, /* 19 */	2466	{6, 20, 18}, /* 19 */
2492	{7,6,-1}, /* 20 */	2467	{7, 6, -1}, /* 20 */
2493	{6,7,8}, /* 21 */	2468	{6, 7, 8}, /* 21 */
2494	{7,8,-1}, /* 22 */	2469	{7, 8, -1}, /* 22 */
2495	{8,22,24}, /* 23 */	2470	{8, 22, 24}, /* 23 */
2496	{8,1,-1}, /* 24 */	2471	{8, 1, -1}, /* 24 */
2497	{24,9,10}, /* 25 */	2472	{24, 9, 10}, /* 25 */
2498	{9,10,-1}, /* 26 */	2473	{9, 10, -1}, /* 26 */
2499	{10,11,-1}, /* 27 */	2474	{10, 11, -1}, /* 27 */
2500	{27,11,29}, /* 28 */	2475	{27, 11, 29}, /* 28 */
2501	{11,12,-1}, /* 29 */	2476	{11, 12, -1}, /* 29 */
2502	{12,13,-1}, /* 30 */	2477	{12, 13, -1}, /* 30 */
2503	{12,13,14}, /* 31 */	2478	{12, 13, 14}, /* 31 */
2504	{13,14,-1}, /* 32 */	2479	{13, 14, -1}, /* 32 */
2505	{14,15,-1}, /* 33 */	2480	{14, 15, -1}, /* 33 */
2506	{33,15,35}, /* 34 */	2481	{33, 15, 35}, /* 34 */
2507	{16,15,-1}, /* 35 */	2482	{16, 15, -1}, /* 35 */
2508	{17,16,-1}, /* 36 */	2483	{17, 16, -1}, /* 36 */
2509	{18,17,16}, /* 37 */	2484	{18, 17, 16}, /* 37 */
2510	{18,17,-1}, /* 38 */	2485	{18, 17, -1}, /* 38 */
2511	{18,19,-1}, /* 39 */	2486	{18, 19, -1}, /* 39 */
2512	{41,19,39}, /* 40 */	2487	{41, 19, 39}, /* 40 */
2513	{19,20,-1}, /* 41 */	2488	{19, 20, -1}, /* 41 */
2514	{20,21,-1}, /* 42 */	2489	{20, 21, -1}, /* 42 */
2515	{20,21,22}, /* 43 */	2490	{20, 21, 22}, /* 43 */
2516	{21,22,-1}, /* 44 */	2491	{21, 22, -1}, /* 44 */
2517	{23,22,-1}, /* 45 */	2492	{23, 22, -1}, /* 45 */
2518	{45,47,23}, /* 46 */	2493	{45, 47, 23}, /* 46 */
2519	{23,24,-1}, /* 47 */	2494	{23, 24, -1}, /* 47 */
2520	{24,9,-1}}; /* 48 */	2495	{24, 9, -1}
		2496	}; /* 48 */
2521		2497
2522	/* Recursive routine to step back and see if we can	2498	/* Recursive routine to step back and see if we can
2523	* find a path to that monster that we found. If not,	2499	* find a path to that monster that we found. If not,
2524	* we don't bother going toward it. Returns 1 if we	2500	* we don't bother going toward it. Returns 1 if we
2525	* can see a direct way to get it	2501	* can see a direct way to get it
2526	* Modified to be map tile aware -.MSW	2502	* Modified to be map tile aware -.MSW
2527	*/	2503	*/
2528
2529		2504
		2505
		2506	int
2530	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2507	can_see_monsterP (maptile *m, int x, int y, int dir)
		2508	{
2531	sint16 dx, dy;	2509	sint16 dx, dy;
		2510	int
2532	int mflags;	2511	mflags;
2533		2512
		2513	if (dir < 0)
2534	if(dir<0) return 0; /* exit condition: invalid direction */	2514	return 0; /* exit condition: invalid direction */
2535		2515
2536	dx = x + freearr_x[dir];	2516	dx = x + freearr_x[dir];
2537	dy = y + freearr_y[dir];	2517	dy = y + freearr_y[dir];
2538		2518
2539	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2519	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2540		2520
2541	/* This functional arguably was incorrect before - it was	2521	/* This functional arguably was incorrect before - it was
2542	* checking for P_WALL - that was basically seeing if	2522	* checking for P_WALL - that was basically seeing if
2543	* we could move to the monster - this is being more	2523	* we could move to the monster - this is being more
2544	* literal on if we can see it. To know if we can actually	2524	* 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	2525	* move to the monster, we'd need the monster passed in or
2546	* at least its move type.	2526	* at least its move type.
2547	*/	2527	*/
2548	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2528	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2529	return 0;
2549		2530
2550	/* yes, can see. */	2531	/* yes, can see. */
2551	if(dir < 9) return 1;	2532	if (dir < 9)
		2533	return 1;
2552	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2534	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |
2553	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2535	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	}	2536	}
2556		2537
2557		2538
2558		2539
2559	/*	2540	/*
2560	* can_pick(picker, item): finds out if an object is possible to be	2541	* 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	2542	* picked up by the picker. Returnes 1 if it can be
2562	* picked up, otherwise 0.	2543	* picked up, otherwise 0.
2563	*	2544	*
…		…
2565	* core dumps if they do.	2546	* core dumps if they do.
2566	*	2547	*
2567	* Add a check so we can't pick up invisible objects (0.93.8)	2548	* Add a check so we can't pick up invisible objects (0.93.8)
2568	*/	2549	*/
2569		2550
		2551	int
2570	int can_pick(const object *who, const object *item) {	2552	can_pick (const object *who, const object *item)
		2553	{
2571	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2554	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2572	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2555	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2573	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2556	!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	}	2557	}
2576		2558
2577		2559
2578	/*	2560	/*
2579	* create clone from object to another	2561	* create clone from object to another
2580	*/	2562	*/
		2563	object *
2581	object *object_create_clone (object *asrc) {	2564	object_create_clone (object *asrc)
		2565	{
		2566	object *
2582	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2567	dst = NULL, *tmp, *src, *part, *prev, *item;
2583		2568
		2569	if (!asrc)
2584	if(!asrc) return NULL;	2570	return NULL;
2585	src = asrc;	2571	src = asrc;
2586	if(src->head)	2572	if (src->head)
2587	src = src->head;	2573	src = src->head;
2588		2574
2589	prev = NULL;	2575	prev = NULL;
2590	for(part = src; part; part = part->more) {	2576	for (part = src; part; part = part->more)
		2577	{
2591	tmp = get_object();	2578	tmp = get_object ();
2592	copy_object(part,tmp);	2579	copy_object (part, tmp);
2593	tmp->x -= src->x;	2580	tmp->x -= src->x;
2594	tmp->y -= src->y;	2581	tmp->y -= src->y;
2595	if(!part->head) {	2582	if (!part->head)
		2583	{
2596	dst = tmp;	2584	dst = tmp;
2597	tmp->head = NULL;	2585	tmp->head = NULL;
		2586	}
2598	} else {	2587	else
		2588	{
2599	tmp->head = dst;	2589	tmp->head = dst;
2600	}	2590	}
2601	tmp->more = NULL;	2591	tmp->more = NULL;
2602	if(prev)	2592	if (prev)
2603	prev->more = tmp;	2593	prev->more = tmp;
2604	prev = tmp;	2594	prev = tmp;
2605	}	2595	}
2606	/*** copy inventory ***/	2596
2607	for(item = src->inv; item; item = item->below) {	2597	for (item = src->inv; item; item = item->below)
2608	(void) insert_ob_in_ob(object_create_clone(item),dst);	2598	insert_ob_in_ob (object_create_clone (item), dst);
2609	}
2610		2599
2611	return dst;	2600	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	}	2601	}
2621		2602
2622	/* GROS - Creates an object using a string representing its content. */	2603	/* 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 */	2604	/* 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, */	2605	/* 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. */	2606	/* 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. */	2607	/* Remember not to use load_object_str in a time-critical situation. */
2627	/* Also remember that multiparts objects are not supported for now. */	2608	/* Also remember that multiparts objects are not supported for now. */
2628		2609
		2610	object *
2629	object* load_object_str(const char *obstr)	2611	load_object_str (const char *obstr)
2630	{	2612	{
2631	object *op;	2613	object *op;
2632	FILE *tempfile;
2633	char filename[MAX_BUF];	2614	char filename[MAX_BUF];
		2615
2634	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2616	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
		2617
2635	tempfile=fopen(filename,"w");	2618	FILE *tempfile = fopen (filename, "w");
		2619
2636	if (tempfile == NULL)	2620	if (tempfile == NULL)
2637	{	2621	{
2638	LOG(llevError,"Error - Unable to access load object temp file\n");	2622	LOG (llevError, "Error - Unable to access load object temp file\n");
2639	return NULL;	2623	return NULL;
2640	};	2624	}
		2625
2641	fprintf(tempfile,obstr);	2626	fprintf (tempfile, obstr);
2642	fclose(tempfile);	2627	fclose (tempfile);
2643		2628
2644	op=get_object();	2629	op = get_object ();
2645		2630
2646	tempfile=fopen(filename,"r");	2631	object_thawer thawer (filename);
2647	if (tempfile == NULL)	2632
2648	{	2633	if (thawer)
2649	LOG(llevError,"Error - Unable to read object temp file\n");	2634	load_object (thawer, op, 0);
2650	return NULL;	2635
2651	};
2652	load_object(tempfile,op,LO_NEWFILE,0);
2653	LOG(llevDebug," load str completed, object=%s\n",op->name);	2636	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2654	CLEAR_FLAG(op,FLAG_REMOVED);	2637	CLEAR_FLAG (op, FLAG_REMOVED);
2655	fclose(tempfile);	2638
2656	return op;	2639	return op;
2657	}	2640	}
2658		2641
2659	/* This returns the first object in who's inventory that	2642	/* This returns the first object in who's inventory that
2660	* has the same type and subtype match.	2643	* has the same type and subtype match.
2661	* returns NULL if no match.	2644	* returns NULL if no match.
2662	*/	2645	*/
		2646	object *
2663	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2647	find_obj_by_type_subtype (const object *who, int type, int subtype)
2664	{	2648	{
2665	object *tmp;	2649	object *tmp;
2666		2650
2667	for (tmp=who->inv; tmp; tmp=tmp->below)	2651	for (tmp = who->inv; tmp; tmp = tmp->below)
2668	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2652	if (tmp->type == type && tmp->subtype == subtype)
		2653	return tmp;
2669		2654
2670	return NULL;	2655	return NULL;
2671	}	2656	}
2672		2657
2673	/* If ob has a field named key, return the link from the list,	2658	/* If ob has a field named key, return the link from the list,
2674	* otherwise return NULL.	2659	* otherwise return NULL.
2675	*	2660	*
2676	* key must be a passed in shared string - otherwise, this won't	2661	* key must be a passed in shared string - otherwise, this won't
2677	* do the desired thing.	2662	* do the desired thing.
2678	*/	2663	*/
		2664	key_value *
2679	key_value * get_ob_key_link(const object * ob, const char * key) {	2665	get_ob_key_link (const object *ob, const char *key)
		2666	{
2680	key_value * link;	2667	key_value *link;
2681		2668
2682	for (link = ob->key_values; link != NULL; link = link->next) {	2669	for (link = ob->key_values; link != NULL; link = link->next)
2683	if (link->key == key) {	2670	if (link->key == key)
2684	return link;	2671	return link;
2685	}	2672
2686	}
2687
2688	return NULL;	2673	return NULL;
2689	}	2674	}
2690		2675
2691	/*	2676	/*
2692	* Returns the value of op has an extra_field for key, or NULL.	2677	* Returns the value of op has an extra_field for key, or NULL.
2693	*	2678	*
2694	* The argument doesn't need to be a shared string.	2679	* The argument doesn't need to be a shared string.
2695	*	2680	*
2696	* The returned string is shared.	2681	* The returned string is shared.
2697	*/	2682	*/
		2683	const char *
2698	const char * get_ob_key_value(const object * op, const char * const key) {	2684	get_ob_key_value (const object *op, const char *const key)
		2685	{
2699	key_value * link;	2686	key_value *link;
2700	const char * canonical_key;	2687	shstr_cmp canonical_key (key);
		2688
		2689	if (!canonical_key)
2701		2690	{
2702	canonical_key = find_string(key);
2703
2704	if (canonical_key == NULL) {
2705	/* 1. There being a field named key on any object	2691	/* 1. There being a field named key on any object
2706	* implies there'd be a shared string to find.	2692	* implies there'd be a shared string to find.
2707	* 2. Since there isn't, no object has this field.	2693	* 2. Since there isn't, no object has this field.
2708	* 3. Therefore, *this* object doesn't have this field.	2694	* 3. Therefore, *this* object doesn't have this field.
2709	*/	2695	*/
2710	return NULL;	2696	return 0;
2711	}	2697	}
2712		2698
2713	/* This is copied from get_ob_key_link() above -	2699	/* This is copied from get_ob_key_link() above -
2714	* only 4 lines, and saves the function call overhead.	2700	* only 4 lines, and saves the function call overhead.
2715	*/	2701	*/
2716	for (link = op->key_values; link != NULL; link = link->next) {	2702	for (link = op->key_values; link; link = link->next)
2717	if (link->key == canonical_key) {	2703	if (link->key == canonical_key)
2718	return link->value;	2704	return link->value;
2719	}	2705
2720	}	2706	return 0;
2721	return NULL;
2722	}	2707	}
2723		2708
2724		2709
2725	/*	2710	/*
2726	* Updates the canonical_key in op to value.	2711	* 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	2715	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2731	* keys.	2716	* keys.
2732	*	2717	*
2733	* Returns TRUE on success.	2718	* Returns TRUE on success.
2734	*/	2719	*/
		2720	int
2735	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2721	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2722	{
		2723	key_value *
2736	key_value * field = NULL, *last=NULL;	2724	field = NULL, *last = NULL;
2737		2725
2738	for (field=op->key_values; field != NULL; field=field->next) {	2726	for (field = op->key_values; field != NULL; field = field->next)
2739	if (field->key != canonical_key) {
2740	last = field;
2741	continue;
2742	}
2743		2727	{
2744	if (field->value) FREE_AND_CLEAR_STR(field->value);	2728	if (field->key != canonical_key)
2745	if (value)	2729	{
2746	field->value = add_string(value);	2730	last = field;
2747	else {	2731	continue;
		2732	}
		2733
		2734	if (value)
		2735	field->value = value;
		2736	else
		2737	{
2748	/* Basically, if the archetype has this key set,	2738	/* Basically, if the archetype has this key set,
2749	* we need to store the null value so when we save	2739	* we need to store the null value so when we save
2750	* it, we save the empty value so that when we load,	2740	* it, we save the empty value so that when we load,
2751	* we get this value back again.	2741	* we get this value back again.
2752	*/	2742	*/
2753	if (get_ob_key_link(&op->arch->clone, canonical_key))	2743	if (get_ob_key_link (&op->arch->clone, canonical_key))
2754	field->value = NULL;	2744	field->value = 0;
2755	else {	2745	else
2756	/* Delete this link */	2746	{
2757	if (field->key) FREE_AND_CLEAR_STR(field->key);	2747	if (last)
2758	if (field->value) FREE_AND_CLEAR_STR(field->value);	2748	last->next = field->next;
2759	if (last) last->next = field->next;	2749	else
2760	else op->key_values = field->next;	2750	op->key_values = field->next;
2761	free(field);	2751
2762	}	2752	delete field;
2763	}	2753	}
		2754	}
2764	return TRUE;	2755	return TRUE;
2765	}	2756	}
2766	/* IF we get here, key doesn't exist */	2757	/* IF we get here, key doesn't exist */
2767		2758
2768	/* No field, we'll have to add it. */	2759	/* No field, we'll have to add it. */
		2760
		2761	if (!add_key)
2769		2762	{
2770	if (!add_key) {
2771	return FALSE;	2763	return FALSE;
2772	}	2764	}
2773	/* There isn't any good reason to store a null	2765	/* There isn't any good reason to store a null
2774	* value in the key/value list. If the archetype has	2766	* value in the key/value list. If the archetype has
2775	* this key, then we should also have it, so shouldn't	2767	* this key, then we should also have it, so shouldn't
2776	* be here. If user wants to store empty strings,	2768	* be here. If user wants to store empty strings,
2777	* should pass in ""	2769	* should pass in ""
2778	*/	2770	*/
2779	if (value == NULL) return TRUE;	2771	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;	2772	return TRUE;
		2773
		2774	field = new key_value;
		2775
		2776	field->key = canonical_key;
		2777	field->value = value;
		2778	/* Usual prepend-addition. */
		2779	field->next = op->key_values;
		2780	op->key_values = field;
		2781
		2782	return TRUE;
2790	}	2783	}
2791		2784
2792	/*	2785	/*
2793	* Updates the key in op to value.	2786	* Updates the key in op to value.
2794	*	2787	*
…		…
2796	* and not add new ones.	2789	* and not add new ones.
2797	* In general, should be little reason FALSE is ever passed in for add_key	2790	* In general, should be little reason FALSE is ever passed in for add_key
2798	*	2791	*
2799	* Returns TRUE on success.	2792	* Returns TRUE on success.
2800	*/	2793	*/
		2794	int
2801	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2795	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2802	const char * canonical_key = NULL;	2796	{
2803	int floating_ref = FALSE;	2797	shstr key_ (key);
2804	int ret;	2798
		2799	return set_ob_key_value_s (op, key_, value, add_key);
		2800	}
		2801
		2802	object::depth_iterator::depth_iterator (object *container)
		2803	: iterator_base (container)
		2804	{
		2805	while (item->inv)
		2806	item = item->inv;
		2807	}
		2808
		2809	void
		2810	object::depth_iterator::next ()
		2811	{
		2812	if (item->below)
2805		2813	{
2806	/* HACK This mess is to make sure set_ob_value() passes a shared string	2814	item = item->below;
2807	* to get_ob_key_link(), without leaving a leaked refcount.	2815
2808	*/	2816	while (item->inv)
		2817	item = item->inv;
2809		2818	}
2810	canonical_key = find_string(key);	2819	else
2811	if (canonical_key == NULL) {	2820	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	}	2821	}
		2822
		2823	// return a suitable string describing an objetc in enough detail to find it
		2824	const char *
		2825	object::debug_desc (char *info) const
		2826	{
		2827	char info2[256 * 3];
		2828	char *p = info;
		2829
		2830	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2831	count,
		2832	&name,
		2833	title ? " " : "",
		2834	title ? (const char *)title : "");
		2835
		2836	if (env)
		2837	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2838
		2839	if (map)
		2840	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2841
		2842	return info;
		2843	}
		2844
		2845	const char *
		2846	object::debug_desc () const
		2847	{
		2848	static char info[256 * 3];
		2849	return debug_desc (info);
		2850	}
		2851

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