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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 1.58 by pippijn, Mon Dec 4 17:48:35 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
		846	object::object ()
		847	{
		848	SET_FLAG (this, FLAG_REMOVED);
		849
		850	expmul = 1.0;
		851	face = blank_face;
		852	}
		853
		854	object::~object ()
		855	{
		856	free_key_values (this);
		857	}
		858
		859	void object::link ()
		860	{
		861	count = ++ob_count;
		862	uuid = gen_uuid ();
		863
		864	prev = 0;
		865	next = object::first;
		866
		867	if (object::first)
		868	object::first->prev = this;
		869
		870	object::first = this;
		871	}
		872
		873	void object::unlink ()
		874	{
		875	if (this == object::first)
		876	object::first = next;
		877
		878	/* Remove this object from the list of used objects */
		879	if (prev) prev->next = next;
		880	if (next) next->prev = prev;
		881
		882	prev = 0;
		883	next = 0;
		884	}
		885
		886	object *object::create ()
		887	{
		888	object *op = new object;
		889	op->link ();
		890	return op;
		891	}
1059		892
1060	/*	893	/*
1061	* free_object() frees everything allocated by an object, removes	894	* free_object() frees everything allocated by an object, removes
1062	* it from the list of used objects, and puts it on the list of	895	* it from the list of used objects, and puts it on the list of
1063	* free objects. The IS_FREED() flag is set in the object.	896	* free objects. The IS_FREED() flag is set in the object.
1064	* The object must have been removed by remove_ob() first for	897	* The object must have been removed by remove_ob() first for
1065	* this function to succeed.	898	* this function to succeed.
1066	*	899	*
1067	* If free_inventory is set, free inventory as well. Else drop items in	900	* If destroy_inventory is set, free inventory as well. Else drop items in
1068	* inventory to the ground.	901	* inventory to the ground.
1069	*/	902	*/
		903	void object::destroy (bool destroy_inventory)
		904	{
		905	if (QUERY_FLAG (this, FLAG_FREED))
		906	return;
1070		907
1071	void free_object(object *ob) {	908	if (QUERY_FLAG (this, FLAG_FRIENDLY))
1072	free_object2(ob, 0);	909	remove_friendly_object (this);
1073	}
1074	void free_object2(object *ob, int free_inventory) {
1075	object *tmp,*op;
1076		910
1077	if (object_free_callback)
1078	object_free_callback (ob);
1079
1080	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	911	if (!QUERY_FLAG (this, FLAG_REMOVED))
1081	LOG(llevDebug,"Free object called with non removed object\n");	912	remove_ob (this);
1082	dump_object(ob);	913
1083	#ifdef MANY_CORES	914	SET_FLAG (this, FLAG_FREED);
1084	abort();	915
1085	#endif	916	if (more)
1086	}	917	{
1087	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	918	more->destroy (destroy_inventory);
1088	LOG(llevMonster,"Warning: tried to free friendly object.\n");	919	more = 0;
1089	remove_friendly_object(ob);	920	}
		921
		922	if (inv)
1090	}	923	{
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 -	924	/* Only if the space blocks everything do we not process -
1102	* if some form of movemnt is allowed, let objects	925	* if some form of movement is allowed, let objects
1103	* drop on that space.	926	* drop on that space.
1104	*/	927	*/
1105	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	928	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))	929	{
1107	{	930	object *op = inv;
1108	op=ob->inv;	931
1109	while(op!=NULL) {	932	while (op)
1110	tmp=op->below;	933	{
1111	remove_ob(op);	934	object *tmp = op->below;
1112	free_object2(op, free_inventory);	935	op->destroy (destroy_inventory);
1113	op=tmp;	936	op = tmp;
		937	}
		938	}
		939	else
		940	{ /* Put objects in inventory onto this space */
		941	object *op = inv;
		942
		943	while (op)
		944	{
		945	object *tmp = op->below;
		946
		947	remove_ob (op);
		948
		949	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
		950	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
		951	free_object (op);
		952	else
		953	{
		954	op->x = x;
		955	op->y = y;
		956	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
		957	}
		958
		959	op = tmp;
		960	}
		961	}
1114	}	962	}
1115	}	963
1116	else { /* Put objects in inventory onto this space */	964	// hack to ensure that freed objects still have a valid map
1117	op=ob->inv;	965	{
1118	while(op!=NULL) {	966	static maptile *freed_map; // freed objects are moved here to avoid crashes
1119	tmp=op->below;	967
1120	remove_ob(op);	968	if (!freed_map)
1121	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||	969	{
1122	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))	970	freed_map = new maptile;
1123	free_object(op);	971
1124	else {	972	freed_map->name = "/internal/freed_objects_map";
1125	op->x=ob->x;	973	freed_map->width = 3;
1126	op->y=ob->y;	974	freed_map->height = 3;
1127	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */	975
1128	}	976	freed_map->allocate ();
1129	op=tmp;
1130	}
1131	}
1132	}	977	}
		978
		979	map = freed_map;
		980	x = 1;
		981	y = 1;
		982	}
		983
		984	// clear those pointers that likely might have circular references to us
		985	owner = 0;
		986	enemy = 0;
		987	attacked_by = 0;
		988
		989	// only relevant for players(?), but make sure of it anyways
		990	contr = 0;
		991
1133	/* Remove object from the active list */	992	/* Remove object from the active list */
1134	ob->speed = 0;	993	speed = 0;
1135	update_ob_speed(ob);	994	update_ob_speed (this);
1136		995
1137	SET_FLAG(ob, FLAG_FREED);	996	unlink ();
1138	ob->count = 0;
1139		997
1140	/* Remove this object from the list of used objects */	998	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	}	999	}
1225		1000
1226	/*	1001	/*
1227	* sub_weight() recursively (outwards) subtracts a number from the	1002	* sub_weight() recursively (outwards) subtracts a number from the
1228	* weight of an object (and what is carried by it's environment(s)).	1003	* weight of an object (and what is carried by it's environment(s)).
1229	*/	1004	*/
1230		1005
		1006	void
1231	void sub_weight (object *op, signed long weight) {	1007	sub_weight (object *op, signed long weight)
		1008	{
1232	while (op != NULL) {	1009	while (op != NULL)
		1010	{
1233	if (op->type == CONTAINER) {	1011	if (op->type == CONTAINER)
1234	weight=(signed long)(weight*(100-op->stats.Str)/100);	1012	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1235	}	1013
1236	op->carrying-=weight;	1014	op->carrying -= weight;
1237	op = op->env;	1015	op = op->env;
1238	}	1016	}
1239	}	1017	}
1240		1018
1241	/* remove_ob(op):	1019	/* remove_ob(op):
1242	* This function removes the object op from the linked list of objects	1020	* 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	1021	* which it is currently tied to. When this function is done, the
…		…
1245	* environment, the x and y coordinates will be updated to	1023	* environment, the x and y coordinates will be updated to
1246	* the previous environment.	1024	* the previous environment.
1247	* Beware: This function is called from the editor as well!	1025	* Beware: This function is called from the editor as well!
1248	*/	1026	*/
1249		1027
		1028	void
1250	void remove_ob(object *op) {	1029	remove_ob (object *op)
		1030	{
1251	object *tmp,*last=NULL;	1031	object *tmp, *last = 0;
1252	object *otmp;	1032	object *otmp;
1253	tag_t tag;	1033
1254	int check_walk_off;	1034	int check_walk_off;
1255	mapstruct *m;	1035	maptile *m;
		1036
1256	sint16 x,y;	1037	sint16 x, y;
1257
1258		1038
1259	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1039	if (QUERY_FLAG (op, FLAG_REMOVED))
1260	dump_object(op);	1040	return;
1261	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1262		1041
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);	1042	SET_FLAG (op, FLAG_REMOVED);
1279		1043
		1044	if (op->more != NULL)
		1045	remove_ob (op->more);
		1046
1280	/*	1047	/*
1281	* In this case, the object to be removed is in someones	1048	* In this case, the object to be removed is in someones
1282	* inventory.	1049	* inventory.
1283	*/	1050	*/
1284	if(op->env!=NULL) {	1051	if (op->env != NULL)
		1052	{
1285	if(op->nrof)	1053	if (op->nrof)
1286	sub_weight(op->env, op->weight*op->nrof);	1054	sub_weight (op->env, op->weight * op->nrof);
1287	else	1055	else
1288	sub_weight(op->env, op->weight+op->carrying);	1056	sub_weight (op->env, op->weight + op->carrying);
1289		1057
1290	/* NO_FIX_PLAYER is set when a great many changes are being	1058	/* NO_FIX_PLAYER is set when a great many changes are being
1291	* made to players inventory. If set, avoiding the call	1059	* made to players inventory. If set, avoiding the call
1292	* to save cpu time.	1060	* to save cpu time.
1293	*/	1061	*/
1294	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1062	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);	1063	fix_player (otmp);
1297		1064
1298	if(op->above!=NULL)	1065	if (op->above != NULL)
1299	op->above->below=op->below;	1066	op->above->below = op->below;
1300	else	1067	else
1301	op->env->inv=op->below;	1068	op->env->inv = op->below;
1302		1069
1303	if(op->below!=NULL)	1070	if (op->below != NULL)
1304	op->below->above=op->above;	1071	op->below->above = op->above;
1305		1072
1306	/* we set up values so that it could be inserted into	1073	/* we set up values so that it could be inserted into
1307	* the map, but we don't actually do that - it is up	1074	* the map, but we don't actually do that - it is up
1308	* to the caller to decide what we want to do.	1075	* to the caller to decide what we want to do.
1309	*/	1076	*/
1310	op->x=op->env->x,op->y=op->env->y;	1077	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;	1078	op->map = op->env->map;
1313	op->above=NULL,op->below=NULL;	1079	op->above = NULL, op->below = NULL;
1314	op->env=NULL;	1080	op->env = NULL;
1315	return;	1081	}
		1082	else if (op->map)
1316	}	1083	{
1317
1318	/* If we get here, we are removing it from a map */
1319	if (op->map == NULL) return;
1320
1321	x = op->x;	1084	x = op->x;
1322	y = op->y;	1085	y = op->y;
1323	m = get_map_from_coord(op->map, &x, &y);	1086	m = get_map_from_coord (op->map, &x, &y);
1324		1087
1325	if (!m) {	1088	if (!m)
		1089	{
1326	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1090	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);	1091	op->map->path, op->x, op->y);
1328	/* in old days, we used to set x and y to 0 and continue.	1092	/* 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	1093	* it seems if we get into this case, something is probablye
1330	* screwed up and should be fixed.	1094	* screwed up and should be fixed.
1331	*/	1095	*/
1332	abort();	1096	abort ();
1333	}	1097	}
		1098
1334	if (op->map != m) {	1099	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",	1100	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);	1101	op->map->path, m->path, op->x, op->y, x, y);
1337	}
1338		1102
1339	/* Re did the following section of code - it looks like it had	1103	/* Re did the following section of code - it looks like it had
1340	* lots of logic for things we no longer care about	1104	* lots of logic for things we no longer care about
1341	*/	1105	*/
1342		1106
1343	/* link the object above us */	1107	/* link the object above us */
1344	if (op->above)	1108	if (op->above)
1345	op->above->below=op->below;	1109	op->above->below = op->below;
1346	else	1110	else
1347	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */	1111	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1348		1112
1349	/* Relink the object below us, if there is one */	1113	/* Relink the object below us, if there is one */
1350	if(op->below) {	1114	if (op->below)
1351	op->below->above=op->above;	1115	op->below->above = op->above;
1352	} else {	1116	else
		1117	{
1353	/* Nothing below, which means we need to relink map object for this space	1118	/* 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	1119	* use translated coordinates in case some oddness with map tiling is
1355	* evident	1120	* evident
1356	*/	1121	*/
1357	if(GET_MAP_OB(m,x,y)!=op) {	1122	if (GET_MAP_OB (m, x, y) != op)
1358	dump_object(op);	1123	{
		1124	char *dump = dump_object (op);
		1125	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);	1126	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);
1360	dump_object(GET_MAP_OB(m,x,y));	1127	free (dump);
1361	LOG(llevError,"%s\n",errmsg);	1128	dump = dump_object (GET_MAP_OB (m, x, y));
1362	}	1129	LOG (llevError, "%s\n", dump);
		1130	free (dump);
		1131	}
		1132
1363	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1133	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */
1364	}	1134	}
1365	op->above=NULL;	1135
		1136	op->above = 0;
1366	op->below=NULL;	1137	op->below = 0;
1367		1138
1368	if (op->map->in_memory == MAP_SAVING)	1139	if (op->map->in_memory == MAP_SAVING)
1369	return;	1140	return;
1370		1141
1371	tag = op->count;
1372	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1142	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
		1143
1373	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1144	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
		1145	{
1374	/* No point updating the players look faces if he is the object	1146	/* No point updating the players look faces if he is the object
1375	* being removed.	1147	* being removed.
1376	*/	1148	*/
1377		1149
1378	if(tmp->type==PLAYER && tmp!=op) {	1150	if (tmp->type == PLAYER && tmp != op)
		1151	{
1379	/* If a container that the player is currently using somehow gets	1152	/* If a container that the player is currently using somehow gets
1380	* removed (most likely destroyed), update the player view	1153	* removed (most likely destroyed), update the player view
1381	* appropriately.	1154	* appropriately.
1382	*/	1155	*/
1383	if (tmp->container==op) {	1156	if (tmp->container == op)
1384	CLEAR_FLAG(op, FLAG_APPLIED);	1157	{
1385	tmp->container=NULL;	1158	CLEAR_FLAG (op, FLAG_APPLIED);
1386	}	1159	tmp->container = NULL;
		1160	}
		1161
1387	tmp->contr->socket.update_look=1;	1162	tmp->contr->socket.update_look = 1;
1388	}	1163	}
		1164
1389	/* See if player moving off should effect something */	1165	/* See if player moving off should effect something */
1390	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1166	if (check_walk_off
		1167	&& ((op->move_type & tmp->move_off)
1391	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1168	&& (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1392		1169	{
1393	move_apply(tmp, op, NULL);	1170	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		1171
		1172	if (op->destroyed ())
		1173	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
		1174	}
		1175
1400	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1176	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1401		1177
1402	if(tmp->above == tmp)	1178	if (tmp->above == tmp)
1403	tmp->above = NULL;	1179	tmp->above = NULL;
1404	last=tmp;	1180
1405	}	1181	last = tmp;
		1182	}
		1183
1406	/* last == NULL of there are no objects on this space */	1184	/* last == NULL of there are no objects on this space */
1407	if (last==NULL) {	1185	if (last == NULL)
		1186	{
1408	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1187	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1409	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1188	* 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	1189	* those out anyways, and if there are any flags set right now, they won't
1411	* be correct anyways.	1190	* be correct anyways.
1412	*/	1191	*/
1413	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);	1192	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1414	update_position(op->map, op->x, op->y);	1193	update_position (op->map, op->x, op->y);
1415	}	1194	}
1416	else	1195	else
1417	update_object(last, UP_OBJ_REMOVE);	1196	update_object (last, UP_OBJ_REMOVE);
1418		1197
1419	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1198	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))
1420	update_all_los(op->map, op->x, op->y);	1199	update_all_los (op->map, op->x, op->y);
1421		1200	}
1422	}	1201	}
1423		1202
1424	/*	1203	/*
1425	* merge_ob(op,top):	1204	* merge_ob(op,top):
1426	*	1205	*
1427	* This function goes through all objects below and including top, and	1206	* This function goes through all objects below and including top, and
1428	* merges op to the first matching object.	1207	* merges op to the first matching object.
1429	* If top is NULL, it is calculated.	1208	* If top is NULL, it is calculated.
1430	* Returns pointer to object if it succeded in the merge, otherwise NULL	1209	* Returns pointer to object if it succeded in the merge, otherwise NULL
1431	*/	1210	*/
1432		1211	object *
1433	object *merge_ob(object *op, object *top) {	1212	merge_ob (object *op, object *top)
		1213	{
1434	if(!op->nrof)	1214	if (!op->nrof)
1435	return 0;	1215	return 0;
		1216
1436	if(top==NULL)	1217	if (top == NULL)
1437	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1218	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1219
1438	for(;top!=NULL;top=top->below) {	1220	for (; top != NULL; top = top->below)
		1221	{
1439	if(top==op)	1222	if (top == op)
1440	continue;	1223	continue;
1441	if (CAN_MERGE(op,top))	1224	if (CAN_MERGE (op, top))
1442	{	1225	{
1443	top->nrof+=op->nrof;	1226	top->nrof += op->nrof;
		1227
1444	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1228	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1445	op->weight = 0; /* Don't want any adjustements now */	1229	op->weight = 0; /* Don't want any adjustements now */
1446	remove_ob(op);	1230	remove_ob (op);
1447	free_object(op);	1231	free_object (op);
1448	return top;	1232	return top;
1449	}	1233	}
1450	}	1234	}
		1235
1451	return NULL;	1236	return 0;
1452	}	1237	}
1453		1238
1454	/*	1239	/*
1455	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1240	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1456	* job preparing multi-part monsters	1241	* job preparing multi-part monsters
1457	*/	1242	*/
		1243	object *
1458	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1244	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1245	{
1459	object* tmp;	1246	object *tmp;
		1247
1460	if (op->head)	1248	if (op->head)
1461	op=op->head;	1249	op = op->head;
		1250
1462	for (tmp=op;tmp;tmp=tmp->more){	1251	for (tmp = op; tmp; tmp = tmp->more)
		1252	{
1463	tmp->x=x+tmp->arch->clone.x;	1253	tmp->x = x + tmp->arch->clone.x;
1464	tmp->y=y+tmp->arch->clone.y;	1254	tmp->y = y + tmp->arch->clone.y;
1465	}	1255	}
		1256
1466	return insert_ob_in_map (op, m, originator, flag);	1257	return insert_ob_in_map (op, m, originator, flag);
1467	}	1258	}
1468		1259
1469	/*	1260	/*
1470	* insert_ob_in_map (op, map, originator, flag):	1261	* insert_ob_in_map (op, map, originator, flag):
1471	* This function inserts the object in the two-way linked list	1262	* This function inserts the object in the two-way linked list
…		…
1485	* new object if 'op' was merged with other object	1276	* new object if 'op' was merged with other object
1486	* NULL if 'op' was destroyed	1277	* NULL if 'op' was destroyed
1487	* just 'op' otherwise	1278	* just 'op' otherwise
1488	*/	1279	*/
1489		1280
		1281	object *
1490	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1282	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1491	{	1283	{
1492	object *tmp, *top, *floor=NULL;	1284	object *tmp, *top, *floor = NULL;
1493	sint16 x,y;	1285	sint16 x, y;
1494		1286
1495	if (QUERY_FLAG (op, FLAG_FREED)) {	1287	if (QUERY_FLAG (op, FLAG_FREED))
		1288	{
1496	LOG (llevError, "Trying to insert freed object!\n");	1289	LOG (llevError, "Trying to insert freed object!\n");
1497	return NULL;	1290	return NULL;
		1291	}
		1292
		1293	if (m == NULL)
1498	}	1294	{
1499	if(m==NULL) {	1295	char *dump = dump_object (op);
1500	dump_object(op);
1501	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1296	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1502	return op;	1297	free (dump);
		1298	return op;
1503	}	1299	}
		1300
1504	if(out_of_map(m,op->x,op->y)) {	1301	if (out_of_map (m, op->x, op->y))
1505	dump_object(op);	1302	{
		1303	char *dump = dump_object (op);
1506	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1304	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1507	#ifdef MANY_CORES	1305	#ifdef MANY_CORES
1508	/* Better to catch this here, as otherwise the next use of this object	1306	/* Better to catch this here, as otherwise the next use of this object
1509	* is likely to cause a crash. Better to find out where it is getting	1307	* is likely to cause a crash. Better to find out where it is getting
1510	* improperly inserted.	1308	* improperly inserted.
1511	*/	1309	*/
1512	abort();	1310	abort ();
1513	#endif	1311	#endif
1514	return op;	1312	free (dump);
		1313	return op;
1515	}	1314	}
		1315
1516	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1316	if (!QUERY_FLAG (op, FLAG_REMOVED))
1517	dump_object(op);	1317	{
		1318	char *dump = dump_object (op);
1518	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1319	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1519	return op;	1320	free (dump);
		1321	return op;
1520	}	1322	}
		1323
1521	if(op->more!=NULL) {	1324	if (op->more != NULL)
		1325	{
1522	/* The part may be on a different map. */	1326	/* The part may be on a different map. */
1523		1327
1524	object *more = op->more;	1328	object *more = op->more;
1525		1329
1526	/* We really need the caller to normalize coordinates - if	1330	/* We really need the caller to normalize coordinates - if
1527	* we set the map, that doesn't work if the location is within	1331	* 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	1332	* a map and this is straddling an edge. So only if coordinate
1529	* is clear wrong do we normalize it.	1333	* is clear wrong do we normalize it.
1530	*/	1334	*/
1531	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1335	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);	1336	more->map = get_map_from_coord (m, &more->x, &more->y);
1536	} else if (!more->map) {	1337	else if (!more->map)
		1338	{
1537	/* For backwards compatibility - when not dealing with tiled maps,	1339	/* For backwards compatibility - when not dealing with tiled maps,
1538	* more->map should always point to the parent.	1340	* more->map should always point to the parent.
1539	*/	1341	*/
1540	more->map = m;	1342	more->map = m;
1541	}	1343	}
1542		1344
1543	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1345	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1346	{
1544	if ( ! op->head)	1347	if (!op->head)
1545	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1348	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1349
1546	return NULL;	1350	return NULL;
1547	}	1351	}
1548	}	1352	}
		1353
1549	CLEAR_FLAG(op,FLAG_REMOVED);	1354	CLEAR_FLAG (op, FLAG_REMOVED);
1550		1355
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	1356	/* 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	1357	* of areas of callers (eg, anything that uses find_free_spot would now
1557	* need extra work	1358	* need extra work
1558	*/	1359	*/
1559	op->map=get_map_from_coord(m, &op->x, &op->y);	1360	op->map = get_map_from_coord (m, &op->x, &op->y);
1560	x = op->x;	1361	x = op->x;
1561	y = op->y;	1362	y = op->y;
1562		1363
1563	/* this has to be done after we translate the coordinates.	1364	/* this has to be done after we translate the coordinates.
1564	*/	1365	*/
1565	if(op->nrof && !(flag & INS_NO_MERGE)) {	1366	if (op->nrof && !(flag & INS_NO_MERGE))
1566	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1367	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1567	if (CAN_MERGE(op,tmp)) {	1368	if (CAN_MERGE (op, tmp))
1568	op->nrof+=tmp->nrof;	1369	{
1569	remove_ob(tmp);	1370	op->nrof += tmp->nrof;
1570	free_object(tmp);	1371	remove_ob (tmp);
1571	}	1372	free_object (tmp);
1572	}	1373	}
1573		1374
1574	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1375	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1575	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1376	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1377
1576	if (!QUERY_FLAG(op, FLAG_ALIVE))	1378	if (!QUERY_FLAG (op, FLAG_ALIVE))
1577	CLEAR_FLAG(op, FLAG_NO_STEAL);	1379	CLEAR_FLAG (op, FLAG_NO_STEAL);
1578		1380
1579	if (flag & INS_BELOW_ORIGINATOR) {	1381	if (flag & INS_BELOW_ORIGINATOR)
		1382	{
1580	if (originator->map != op->map || originator->x != op->x ||	1383	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1581	originator->y != op->y) {	1384	{
1582	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1385	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1583	abort();	1386	abort ();
1584	}	1387	}
		1388
1585	op->above = originator;	1389	op->above = originator;
1586	op->below = originator->below;	1390	op->below = originator->below;
1587	if (op->below) op->below->above = op;	1391
		1392	if (op->below)
		1393	op->below->above = op;
		1394	else
1588	else SET_MAP_OB(op->map, op->x, op->y, op);	1395	SET_MAP_OB (op->map, op->x, op->y, op);
		1396
1589	/* since *below* originator, no need to update top */	1397	/* since *below* originator, no need to update top */
1590	originator->below = op;	1398	originator->below = op;
1591	} else {	1399	}
		1400	else
		1401	{
1592	/* If there are other objects, then */	1402	/* If there are other objects, then */
1593	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1403	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1404	{
1594	object *last=NULL;	1405	object *last = NULL;
1595	/*	1406
		1407	/*
1596	* If there are multiple objects on this space, we do some trickier handling.	1408	* If there are multiple objects on this space, we do some trickier handling.
1597	* We've already dealt with merging if appropriate.	1409	* We've already dealt with merging if appropriate.
1598	* Generally, we want to put the new object on top. But if	1410	* Generally, we want to put the new object on top. But if
1599	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1411	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1600	* floor, we want to insert above that and no further.	1412	* floor, we want to insert above that and no further.
1601	* Also, if there are spell objects on this space, we stop processing	1413	* 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	1414	* 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	1415	* 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	1416	* when lots of spells are cast in one area. Currently, it is presumed
1605	* that flying non pickable objects are spell objects.	1417	* that flying non pickable objects are spell objects.
1606	*/	1418	*/
1607		1419
1608	while (top != NULL) {	1420	while (top != NULL)
1609	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||	1421	{
1610	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;	1422	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1611	if (QUERY_FLAG(top, FLAG_NO_PICK)	1423	floor = top;
1612	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))	1424
1613	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))	1425	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1614	{	1426	{
1615	/* We insert above top, so we want this object below this */	1427	/* We insert above top, so we want this object below this */
1616	top=top->below;	1428	top = top->below;
1617	break;	1429	break;
1618	}	1430	}
1619	last = top;	1431
1620	top = top->above;	1432	last = top;
1621	}	1433	top = top->above;
		1434	}
		1435
1622	/* Don't want top to be NULL, so set it to the last valid object */	1436	/* Don't want top to be NULL, so set it to the last valid object */
1623	top = last;	1437	top = last;
1624		1438
1625	/* We let update_position deal with figuring out what the space	1439	/* We let update_position deal with figuring out what the space
1626	* looks like instead of lots of conditions here.	1440	* looks like instead of lots of conditions here.
1627	* makes things faster, and effectively the same result.	1441	* makes things faster, and effectively the same result.
1628	*/	1442	*/
1629		1443
1630	/* Have object 'fall below' other objects that block view.	1444	/* Have object 'fall below' other objects that block view.
1631	* Unless those objects are exits, type 66	1445	* Unless those objects are exits, type 66
1632	* If INS_ON_TOP is used, don't do this processing	1446	* If INS_ON_TOP is used, don't do this processing
1633	* Need to find the object that in fact blocks view, otherwise	1447	* Need to find the object that in fact blocks view, otherwise
1634	* stacking is a bit odd.	1448	* stacking is a bit odd.
1635	*/	1449	*/
1636	if (!(flag & INS_ON_TOP) &&	1450	if (!(flag & INS_ON_TOP) &&
1637	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1451	(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)) {	1452	{
1639	for (last=top; last != floor; last=last->below)	1453	for (last = top; last != floor; last = last->below)
1640	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1454	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1455	break;
1641	/* Check to see if we found the object that blocks view,	1456	/* Check to see if we found the object that blocks view,
1642	* and make sure we have a below pointer for it so that	1457	* and make sure we have a below pointer for it so that
1643	* we can get inserted below this one, which requires we	1458	* we can get inserted below this one, which requires we
1644	* set top to the object below us.	1459	* set top to the object below us.
1645	*/	1460	*/
1646	if (last && last->below && last != floor) top=last->below;	1461	if (last && last->below && last != floor)
1647	}	1462	top = last->below;
1648	} /* If objects on this space */	1463	}
		1464	} /* If objects on this space */
		1465
1649	if (flag & INS_MAP_LOAD)	1466	if (flag & INS_MAP_LOAD)
1650	top = GET_MAP_TOP(op->map,op->x,op->y);	1467	top = GET_MAP_TOP (op->map, op->x, op->y);
		1468
1651	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1469	if (flag & INS_ABOVE_FLOOR_ONLY)
		1470	top = floor;
1652		1471
1653	/* Top is the object that our object (op) is going to get inserted above.	1472	/* Top is the object that our object (op) is going to get inserted above.
1654	*/	1473	*/
1655		1474
1656	/* First object on this space */	1475	/* First object on this space */
1657	if (!top) {	1476	if (!top)
		1477	{
1658	op->above = GET_MAP_OB(op->map, op->x, op->y);	1478	op->above = GET_MAP_OB (op->map, op->x, op->y);
1659	if (op->above) op->above->below = op;	1479
		1480	if (op->above)
		1481	op->above->below = op;
		1482
1660	op->below = NULL;	1483	op->below = NULL;
1661	SET_MAP_OB(op->map, op->x, op->y, op);	1484	SET_MAP_OB (op->map, op->x, op->y, op);
1662	} else { /* get inserted into the stack above top */	1485	}
		1486	else
		1487	{ /* get inserted into the stack above top */
1663	op->above = top->above;	1488	op->above = top->above;
1664	if (op->above) op->above->below = op;	1489
		1490	if (op->above)
		1491	op->above->below = op;
		1492
1665	op->below = top;	1493	op->below = top;
1666	top->above = op;	1494	top->above = op;
1667	}	1495	}
		1496
1668	if (op->above==NULL)	1497	if (op->above == NULL)
1669	SET_MAP_TOP(op->map,op->x, op->y, op);	1498	SET_MAP_TOP (op->map, op->x, op->y, op);
1670	} /* else not INS_BELOW_ORIGINATOR */	1499	} /* else not INS_BELOW_ORIGINATOR */
1671		1500
1672	if(op->type==PLAYER)	1501	if (op->type == PLAYER)
1673	op->contr->do_los=1;	1502	op->contr->do_los = 1;
1674		1503
1675	/* If we have a floor, we know the player, if any, will be above	1504	/* 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.	1505	* it, so save a few ticks and start from there.
1677	*/	1506	*/
1678	if (!(flag & INS_MAP_LOAD))	1507	if (!(flag & INS_MAP_LOAD))
1679	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1508	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1680	if (tmp->type == PLAYER)	1509	if (tmp->type == PLAYER)
1681	tmp->contr->socket.update_look=1;	1510	tmp->contr->socket.update_look = 1;
1682	}
1683		1511
1684	/* If this object glows, it may affect lighting conditions that are	1512	/* If this object glows, it may affect lighting conditions that are
1685	* visible to others on this map. But update_all_los is really	1513	* 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	1514	* 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	1515	* on the map will get recalculated. The players could very well
1688	* be far away from this change and not affected in any way -	1516	* be far away from this change and not affected in any way -
1689	* this should get redone to only look for players within range,	1517	* this should get redone to only look for players within range,
1690	* or just updating the P_NEED_UPDATE for spaces within this area	1518	* or just updating the P_NEED_UPDATE for spaces within this area
1691	* of effect may be sufficient.	1519	* of effect may be sufficient.
1692	*/	1520	*/
1693	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1521	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
1694	update_all_los(op->map, op->x, op->y);	1522	update_all_los (op->map, op->x, op->y);
1695		1523
1696
1697	/* updates flags (blocked, alive, no magic, etc) for this map space */	1524	/* updates flags (blocked, alive, no magic, etc) for this map space */
1698	update_object(op,UP_OBJ_INSERT);	1525	update_object (op, UP_OBJ_INSERT);
1699		1526
1700
1701	/* Don't know if moving this to the end will break anything. However,	1527	/* 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.	1528	* we want to have update_look set above before calling this.
1703	*	1529	*
1704	* check_move_on() must be after this because code called from	1530	* check_move_on() must be after this because code called from
1705	* check_move_on() depends on correct map flags (so functions like	1531	* check_move_on() depends on correct map flags (so functions like
1706	* blocked() and wall() work properly), and these flags are updated by	1532	* blocked() and wall() work properly), and these flags are updated by
1707	* update_object().	1533	* update_object().
1708	*/	1534	*/
1709		1535
1710	/* if this is not the head or flag has been passed, don't check walk on status */	1536	/* 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) {	1537	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1538	{
1713	if (check_move_on(op, originator))	1539	if (check_move_on (op, originator))
1714	return NULL;	1540	return NULL;
1715		1541
1716	/* If we are a multi part object, lets work our way through the check	1542	/* If we are a multi part object, lets work our way through the check
1717	* walk on's.	1543	* walk on's.
1718	*/	1544	*/
1719	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1545	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1720	if (check_move_on (tmp, originator))	1546	if (check_move_on (tmp, originator))
1721	return NULL;	1547	return NULL;
1722	}	1548	}
		1549
1723	return op;	1550	return op;
1724	}	1551	}
1725		1552
1726	/* this function inserts an object in the map, but if it	1553	/* 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.	1554	* 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.	1555	* op is the object to insert it under: supplies x and the map.
1729	*/	1556	*/
		1557	void
1730	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1558	replace_insert_ob_in_map (const char *arch_string, object *op)
		1559	{
1731	object *tmp;	1560	object *
1732	object *tmp1;	1561	tmp;
		1562	object *
		1563	tmp1;
1733		1564
1734	/* first search for itself and remove any old instances */	1565	/* first search for itself and remove any old instances */
1735		1566
1736	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1567	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
		1568	{
1737	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1569	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
		1570	{
1738	remove_ob(tmp);	1571	remove_ob (tmp);
1739	free_object(tmp);	1572	free_object (tmp);
1740	}	1573	}
1741	}	1574	}
1742		1575
1743	tmp1=arch_to_object(find_archetype(arch_string));	1576	tmp1 = arch_to_object (archetype::find (arch_string));
1744		1577
1745		1578	tmp1->x = op->x;
1746	tmp1->x = op->x; tmp1->y = op->y;	1579	tmp1->y = op->y;
1747	insert_ob_in_map(tmp1,op->map,op,0);	1580	insert_ob_in_map (tmp1, op->map, op, 0);
1748	}	1581	}
1749		1582
1750	/*	1583	/*
1751	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1584	* 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	1585	* is returned contains nr objects, and the remaining parts contains
1753	* the rest (or is removed and freed if that number is 0).	1586	* the rest (or is removed and freed if that number is 0).
1754	* On failure, NULL is returned, and the reason put into the	1587	* On failure, NULL is returned, and the reason put into the
1755	* global static errmsg array.	1588	* global static errmsg array.
1756	*/	1589	*/
1757		1590
		1591	object *
1758	object *get_split_ob(object *orig_ob, uint32 nr) {	1592	get_split_ob (object *orig_ob, uint32 nr)
1759	object *newob;	1593	{
		1594	object *
		1595	newob;
		1596	int
1760	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1597	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1761		1598
1762	if(orig_ob->nrof<nr) {	1599	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	}	1600	{
		1601	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
		1602	return NULL;
		1603	}
		1604
1767	newob = object_create_clone(orig_ob);	1605	newob = object_create_clone (orig_ob);
		1606
1768	if((orig_ob->nrof-=nr)<1) {	1607	if ((orig_ob->nrof -= nr) < 1)
		1608	{
1769	if ( ! is_removed)	1609	if (!is_removed)
1770	remove_ob(orig_ob);	1610	remove_ob (orig_ob);
1771	free_object2(orig_ob, 1);	1611	free_object2 (orig_ob, 1);
1772	}	1612	}
1773	else if ( ! is_removed) {	1613	else if (!is_removed)
		1614	{
1774	if(orig_ob->env!=NULL)	1615	if (orig_ob->env != NULL)
1775	sub_weight (orig_ob->env,orig_ob->weight*nr);	1616	sub_weight (orig_ob->env, orig_ob->weight * nr);
1776	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1617	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1618	{
1777	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1619	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");	1620	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1780	return NULL;	1621	return NULL;
1781	}	1622	}
1782	}	1623	}
		1624
1783	newob->nrof=nr;	1625	newob->nrof = nr;
1784		1626
1785	return newob;	1627	return newob;
1786	}	1628	}
1787		1629
1788	/*	1630	/*
1789	* decrease_ob_nr(object, number) decreases a specified number from	1631	* decrease_ob_nr(object, number) decreases a specified number from
1790	* the amount of an object. If the amount reaches 0, the object	1632	* the amount of an object. If the amount reaches 0, the object
1791	* is subsequently removed and freed.	1633	* is subsequently removed and freed.
1792	*	1634	*
1793	* Return value: 'op' if something is left, NULL if the amount reached 0	1635	* Return value: 'op' if something is left, NULL if the amount reached 0
1794	*/	1636	*/
1795		1637
		1638	object *
1796	object *decrease_ob_nr (object *op, uint32 i)	1639	decrease_ob_nr (object *op, uint32 i)
1797	{	1640	{
1798	object *tmp;	1641	object *tmp;
1799	player *pl;	1642	player *pl;
1800		1643
1801	if (i == 0) /* objects with op->nrof require this check */	1644	if (i == 0) /* objects with op->nrof require this check */
1802	return op;	1645	return op;
1803		1646
1804	if (i > op->nrof)	1647	if (i > op->nrof)
1805	i = op->nrof;	1648	i = op->nrof;
1806		1649
1807	if (QUERY_FLAG (op, FLAG_REMOVED))	1650	if (QUERY_FLAG (op, FLAG_REMOVED))
		1651	op->nrof -= i;
		1652	else if (op->env != NULL)
		1653	{
		1654	/* is this object in the players inventory, or sub container
		1655	* therein?
		1656	*/
		1657	tmp = is_player_inv (op->env);
		1658	/* nope. Is this a container the player has opened?
		1659	* If so, set tmp to that player.
		1660	* IMO, searching through all the players will mostly
		1661	* likely be quicker than following op->env to the map,
		1662	* and then searching the map for a player.
		1663	*/
		1664	if (!tmp)
		1665	{
		1666	for (pl = first_player; pl; pl = pl->next)
		1667	if (pl->ob->container == op->env)
		1668	break;
		1669	if (pl)
		1670	tmp = pl->ob;
		1671	else
		1672	tmp = NULL;
		1673	}
		1674
		1675	if (i < op->nrof)
		1676	{
		1677	sub_weight (op->env, op->weight * i);
		1678	op->nrof -= i;
		1679	if (tmp)
		1680	{
		1681	esrv_send_item (tmp, op);
		1682	}
		1683	}
		1684	else
		1685	{
		1686	remove_ob (op);
		1687	op->nrof = 0;
		1688	if (tmp)
		1689	{
		1690	esrv_del_item (tmp->contr, op->count);
		1691	}
		1692	}
1808	{	1693	}
		1694	else
		1695	{
		1696	object *above = op->above;
		1697
		1698	if (i < op->nrof)
1809	op->nrof -= i;	1699	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 {	1700	else
		1701	{
1837	remove_ob (op);	1702	remove_ob (op);
1838	op->nrof = 0;	1703	op->nrof = 0;
1839	if (tmp) {
1840	esrv_del_item(tmp->contr, op->count);
1841	}	1704	}
1842	}
1843	}
1844	else
1845	{
1846	object *above = op->above;
1847		1705
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 */	1706	/* Since we just removed op, op->above is null */
1855	for (tmp = above; tmp != NULL; tmp = tmp->above)	1707	for (tmp = above; tmp != NULL; tmp = tmp->above)
1856	if (tmp->type == PLAYER) {	1708	if (tmp->type == PLAYER)
		1709	{
1857	if (op->nrof)	1710	if (op->nrof)
1858	esrv_send_item(tmp, op);	1711	esrv_send_item (tmp, op);
1859	else	1712	else
1860	esrv_del_item(tmp->contr, op->count);	1713	esrv_del_item (tmp->contr, op->count);
1861	}	1714	}
1862	}	1715	}
1863		1716
1864	if (op->nrof) {	1717	if (op->nrof)
1865	return op;	1718	return op;
1866	} else {	1719	else
		1720	{
1867	free_object (op);	1721	free_object (op);
1868	return NULL;	1722	return NULL;
1869	}	1723	}
1870	}	1724	}
1871		1725
1872	/*	1726	/*
1873	* add_weight(object, weight) adds the specified weight to an object,	1727	* add_weight(object, weight) adds the specified weight to an object,
1874	* and also updates how much the environment(s) is/are carrying.	1728	* and also updates how much the environment(s) is/are carrying.
1875	*/	1729	*/
1876		1730
		1731	void
1877	void add_weight (object *op, signed long weight) {	1732	add_weight (object *op, signed long weight)
		1733	{
1878	while (op!=NULL) {	1734	while (op != NULL)
		1735	{
1879	if (op->type == CONTAINER) {	1736	if (op->type == CONTAINER)
1880	weight=(signed long)(weight*(100-op->stats.Str)/100);	1737	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1881	}	1738
1882	op->carrying+=weight;	1739	op->carrying += weight;
1883	op=op->env;	1740	op = op->env;
1884	}	1741	}
1885	}	1742	}
1886		1743
1887	/*	1744	/*
1888	* insert_ob_in_ob(op,environment):	1745	* insert_ob_in_ob(op,environment):
1889	* This function inserts the object op in the linked list	1746	* This function inserts the object op in the linked list
…		…
1896	*	1753	*
1897	* The function returns now pointer to inserted item, and return value can	1754	* The function returns now pointer to inserted item, and return value can
1898	* be != op, if items are merged. -Tero	1755	* be != op, if items are merged. -Tero
1899	*/	1756	*/
1900		1757
		1758	object *
1901	object *insert_ob_in_ob(object *op,object *where) {	1759	insert_ob_in_ob (object *op, object *where)
1902	object *tmp, *otmp;	1760	{
		1761	object *
		1762	tmp, *
		1763	otmp;
1903		1764
1904	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1765	if (!QUERY_FLAG (op, FLAG_REMOVED))
1905	dump_object(op);	1766	{
		1767	char *dump = dump_object (op);
1906	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1768	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", dump);
		1769	free (dump);
1907	return op;	1770	return op;
1908	}	1771	}
		1772
1909	if(where==NULL) {	1773	if (where == NULL)
1910	dump_object(op);	1774	{
		1775	char *dump = dump_object (op);
1911	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);	1776	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1777	free (dump);
1912	return op;	1778	return op;
1913	}	1779	}
		1780
1914	if (where->head) {	1781	if (where->head)
1915	LOG(llevDebug,	1782	{
1916	"Warning: Tried to insert object wrong part of multipart object.\n");	1783	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1917	where = where->head;	1784	where = where->head;
1918	}	1785	}
		1786
1919	if (op->more) {	1787	if (op->more)
		1788	{
1920	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1789	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1921	op->name, op->count);
1922	return op;	1790	return op;
1923	}	1791	}
		1792
1924	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1793	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1925	CLEAR_FLAG(op, FLAG_REMOVED);	1794	CLEAR_FLAG (op, FLAG_REMOVED);
1926	if(op->nrof) {	1795	if (op->nrof)
		1796	{
1927	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1797	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)
1928	if ( CAN_MERGE(tmp,op) ) {	1798	if (CAN_MERGE (tmp, op))
		1799	{
1929	/* return the original object and remove inserted object	1800	/* return the original object and remove inserted object
1930	(client needs the original object) */	1801	(client needs the original object) */
1931	tmp->nrof += op->nrof;	1802	tmp->nrof += op->nrof;
1932	/* Weight handling gets pretty funky. Since we are adding to	1803	/* Weight handling gets pretty funky. Since we are adding to
1933	* tmp->nrof, we need to increase the weight.	1804	* tmp->nrof, we need to increase the weight.
1934	*/	1805	*/
1935	add_weight (where, op->weight*op->nrof);	1806	add_weight (where, op->weight * op->nrof);
1936	SET_FLAG(op, FLAG_REMOVED);	1807	SET_FLAG (op, FLAG_REMOVED);
1937	free_object(op); /* free the inserted object */	1808	free_object (op); /* free the inserted object */
1938	op = tmp;	1809	op = tmp;
1939	remove_ob (op); /* and fix old object's links */	1810	remove_ob (op); /* and fix old object's links */
1940	CLEAR_FLAG(op, FLAG_REMOVED);	1811	CLEAR_FLAG (op, FLAG_REMOVED);
1941	break;	1812	break;
1942	}	1813	}
1943		1814
1944	/* I assume combined objects have no inventory	1815	/* I assume combined objects have no inventory
1945	* We add the weight - this object could have just been removed	1816	* We add the weight - this object could have just been removed
1946	* (if it was possible to merge). calling remove_ob will subtract	1817	* (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	1818	* the weight, so we need to add it in again, since we actually do
1948	* the linking below	1819	* the linking below
1949	*/	1820	*/
1950	add_weight (where, op->weight*op->nrof);	1821	add_weight (where, op->weight * op->nrof);
		1822	}
1951	} else	1823	else
1952	add_weight (where, (op->weight+op->carrying));	1824	add_weight (where, (op->weight + op->carrying));
1953		1825
1954	otmp=is_player_inv(where);	1826	otmp = is_player_inv (where);
1955	if (otmp&&otmp->contr!=NULL) {	1827	if (otmp && otmp->contr != NULL)
		1828	{
1956	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1829	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1957	fix_player(otmp);	1830	fix_player (otmp);
1958	}	1831	}
1959		1832
1960	op->map=NULL;	1833	op->map = NULL;
1961	op->env=where;	1834	op->env = where;
1962	op->above=NULL;	1835	op->above = NULL;
1963	op->below=NULL;	1836	op->below = NULL;
1964	op->x=0,op->y=0;	1837	op->x = 0, op->y = 0;
1965	op->ox=0,op->oy=0;
1966		1838
1967	/* reset the light list and los of the players on the map */	1839	/* reset the light list and los of the players on the map */
1968	if((op->glow_radius!=0)&&where->map)	1840	if ((op->glow_radius != 0) && where->map)
1969	{	1841	{
1970	#ifdef DEBUG_LIGHTS	1842	#ifdef DEBUG_LIGHTS
1971	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1843	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1972	op->name);
1973	#endif /* DEBUG_LIGHTS */	1844	#endif /* DEBUG_LIGHTS */
		1845	if (MAP_DARKNESS (where->map))
1974	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1846	update_all_los (where->map, where->x, where->y);
1975	}	1847	}
1976		1848
1977	/* Client has no idea of ordering so lets not bother ordering it here.	1849	/* Client has no idea of ordering so lets not bother ordering it here.
1978	* It sure simplifies this function...	1850	* It sure simplifies this function...
1979	*/	1851	*/
1980	if (where->inv==NULL)	1852	if (where->inv == NULL)
1981	where->inv=op;	1853	where->inv = op;
1982	else {	1854	else
		1855	{
1983	op->below = where->inv;	1856	op->below = where->inv;
1984	op->below->above = op;	1857	op->below->above = op;
1985	where->inv = op;	1858	where->inv = op;
1986	}	1859	}
1987	return op;	1860	return op;
1988	}	1861	}
1989		1862
1990	/*	1863	/*
1991	* Checks if any objects has a move_type that matches objects	1864	* 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	1879	* 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	1880	* object being inserted. insert_ob_in_map may not put new objects
2008	* on top.	1881	* on top.
2009	*/	1882	*/
2010		1883
		1884	int
2011	int check_move_on (object *op, object *originator)	1885	check_move_on (object *op, object *originator)
2012	{	1886	{
2013	object *tmp;	1887	object *tmp;
2014	tag_t tag;
2015	mapstruct *m=op->map;	1888	maptile *m = op->map;
2016	int x=op->x, y=op->y;	1889	int x = op->x, y = op->y;
		1890
2017	MoveType move_on, move_slow, move_block;	1891	MoveType move_on, move_slow, move_block;
2018		1892
2019	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1893	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;	1894	return 0;
		1895
		1896	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1897	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		1898	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		1899
		1900	/* if nothing on this space will slow op down or be applied,
		1901	* no need to do checking below. have to make sure move_type
		1902	* is set, as lots of objects don't have it set - we treat that
		1903	* as walking.
		1904	*/
		1905	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		1906	return 0;
		1907
		1908	/* This is basically inverse logic of that below - basically,
		1909	* if the object can avoid the move on or slow move, they do so,
		1910	* but can't do it if the alternate movement they are using is
		1911	* blocked. Logic on this seems confusing, but does seem correct.
		1912	*/
		1913	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		1914	return 0;
		1915
		1916	/* The objects have to be checked from top to bottom.
		1917	* Hence, we first go to the top:
		1918	*/
		1919
		1920	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
		1921	{
		1922	/* Trim the search when we find the first other spell effect
		1923	* this helps performance so that if a space has 50 spell objects,
		1924	* we don't need to check all of them.
		1925	*/
		1926	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1927	break;
		1928	}
		1929
		1930	for (; tmp; tmp = tmp->below)
		1931	{
		1932	if (tmp == op)
		1933	continue; /* Can't apply yourself */
		1934
		1935	/* Check to see if one of the movement types should be slowed down.
		1936	* Second check makes sure that the movement types not being slowed
		1937	* (~slow_move) is not blocked on this space - just because the
		1938	* space doesn't slow down swimming (for example), if you can't actually
		1939	* swim on that space, can't use it to avoid the penalty.
		1940	*/
		1941	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1942	{
		1943	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		1944	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1945	{
		1946
		1947	float
		1948	diff = tmp->move_slow_penalty * FABS (op->speed);
		1949
		1950	if (op->type == PLAYER)
		1951	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		1952	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		1953	diff /= 4.0;
		1954
		1955	op->speed_left -= diff;
		1956	}
		1957	}
		1958
		1959	/* Basically same logic as above, except now for actual apply. */
		1960	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		1961	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		1962	{
		1963	move_apply (tmp, op, originator);
		1964
		1965	if (op->destroyed ())
		1966	return 1;
		1967
		1968	/* what the person/creature stepped onto has moved the object
		1969	* someplace new. Don't process any further - if we did,
		1970	* have a feeling strange problems would result.
		1971	*/
		1972	if (op->map != m || op->x != x || op->y != y)
		1973	return 0;
		1974	}
		1975	}
		1976
		1977	return 0;
2100	}	1978	}
2101		1979
2102	/*	1980	/*
2103	* present_arch(arch, map, x, y) searches for any objects with	1981	* present_arch(arch, map, x, y) searches for any objects with
2104	* a matching archetype at the given map and coordinates.	1982	* a matching archetype at the given map and coordinates.
2105	* The first matching object is returned, or NULL if none.	1983	* The first matching object is returned, or NULL if none.
2106	*/	1984	*/
2107		1985
		1986	object *
2108	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1987	present_arch (const archetype *at, maptile *m, int x, int y)
		1988	{
2109	object *tmp;	1989	object *
		1990	tmp;
		1991
2110	if(m==NULL || out_of_map(m,x,y)) {	1992	if (m == NULL || out_of_map (m, x, y))
		1993	{
2111	LOG(llevError,"Present_arch called outside map.\n");	1994	LOG (llevError, "Present_arch called outside map.\n");
2112	return NULL;	1995	return NULL;
2113	}	1996	}
2114	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1997	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2115	if(tmp->arch == at)	1998	if (tmp->arch == at)
2116	return tmp;	1999	return tmp;
2117	return NULL;	2000	return NULL;
2118	}	2001	}
2119		2002
2120	/*	2003	/*
2121	* present(type, map, x, y) searches for any objects with	2004	* present(type, map, x, y) searches for any objects with
2122	* a matching type variable at the given map and coordinates.	2005	* a matching type variable at the given map and coordinates.
2123	* The first matching object is returned, or NULL if none.	2006	* The first matching object is returned, or NULL if none.
2124	*/	2007	*/
2125		2008
		2009	object *
2126	object *present(unsigned char type,mapstruct *m, int x,int y) {	2010	present (unsigned char type, maptile *m, int x, int y)
		2011	{
2127	object *tmp;	2012	object *
		2013	tmp;
		2014
2128	if(out_of_map(m,x,y)) {	2015	if (out_of_map (m, x, y))
		2016	{
2129	LOG(llevError,"Present called outside map.\n");	2017	LOG (llevError, "Present called outside map.\n");
2130	return NULL;	2018	return NULL;
2131	}	2019	}
2132	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	2020	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2133	if(tmp->type==type)	2021	if (tmp->type == type)
2134	return tmp;	2022	return tmp;
2135	return NULL;	2023	return NULL;
2136	}	2024	}
2137		2025
2138	/*	2026	/*
2139	* present_in_ob(type, object) searches for any objects with	2027	* present_in_ob(type, object) searches for any objects with
2140	* a matching type variable in the inventory of the given object.	2028	* a matching type variable in the inventory of the given object.
2141	* The first matching object is returned, or NULL if none.	2029	* The first matching object is returned, or NULL if none.
2142	*/	2030	*/
2143		2031
		2032	object *
2144	object *present_in_ob(unsigned char type, const object *op) {	2033	present_in_ob (unsigned char type, const object *op)
		2034	{
2145	object *tmp;	2035	object *
		2036	tmp;
		2037
2146	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2038	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2147	if(tmp->type==type)	2039	if (tmp->type == type)
2148	return tmp;	2040	return tmp;
2149	return NULL;	2041	return NULL;
2150	}	2042	}
2151		2043
2152	/*	2044	/*
…		…
2162	* the object name, not the archetype name. this is so that the	2054	* 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	2055	* spell code can use one object type (force), but change it's name
2164	* to be unique.	2056	* to be unique.
2165	*/	2057	*/
2166		2058
		2059	object *
2167	object *present_in_ob_by_name(int type, const char *str, const object *op) {	2060	present_in_ob_by_name (int type, const char *str, const object *op)
		2061	{
2168	object *tmp;	2062	object *
		2063	tmp;
2169		2064
2170	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	2065	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2066	{
2171	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	2067	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2172	return tmp;	2068	return tmp;
2173	}	2069	}
2174	return NULL;	2070	return NULL;
2175	}	2071	}
2176		2072
2177	/*	2073	/*
2178	* present_arch_in_ob(archetype, object) searches for any objects with	2074	* present_arch_in_ob(archetype, object) searches for any objects with
2179	* a matching archetype in the inventory of the given object.	2075	* a matching archetype in the inventory of the given object.
2180	* The first matching object is returned, or NULL if none.	2076	* The first matching object is returned, or NULL if none.
2181	*/	2077	*/
2182		2078
		2079	object *
2183	object *present_arch_in_ob(const archetype *at, const object *op) {	2080	present_arch_in_ob (const archetype *at, const object *op)
		2081	{
2184	object *tmp;	2082	object *
		2083	tmp;
		2084
2185	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2085	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2186	if( tmp->arch == at)	2086	if (tmp->arch == at)
2187	return tmp;	2087	return tmp;
2188	return NULL;	2088	return NULL;
2189	}	2089	}
2190		2090
2191	/*	2091	/*
2192	* activate recursively a flag on an object inventory	2092	* activate recursively a flag on an object inventory
2193	*/	2093	*/
		2094	void
2194	void flag_inv(object*op, int flag){	2095	flag_inv (object *op, int flag)
		2096	{
2195	object *tmp;	2097	object *
		2098	tmp;
		2099
2196	if(op->inv)	2100	if (op->inv)
2197	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2101	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2102	{
2198	SET_FLAG(tmp, flag);	2103	SET_FLAG (tmp, flag);
2199	flag_inv(tmp,flag);	2104	flag_inv (tmp, flag);
2200	}	2105	}
2201	}/*	2106	} /*
2202	* desactivate recursively a flag on an object inventory	2107	* desactivate recursively a flag on an object inventory
2203	*/	2108	*/
		2109	void
2204	void unflag_inv(object*op, int flag){	2110	unflag_inv (object *op, int flag)
		2111	{
2205	object *tmp;	2112	object *
		2113	tmp;
		2114
2206	if(op->inv)	2115	if (op->inv)
2207	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2116	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2117	{
2208	CLEAR_FLAG(tmp, flag);	2118	CLEAR_FLAG (tmp, flag);
2209	unflag_inv(tmp,flag);	2119	unflag_inv (tmp, flag);
2210	}	2120	}
2211	}	2121	}
2212		2122
2213	/*	2123	/*
2214	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	2124	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2215	* all it's inventory (recursively).	2125	* all it's inventory (recursively).
2216	* If checksums are used, a player will get set_cheat called for	2126	* 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.	2127	* him/her-self and all object carried by a call to this function.
2218	*/	2128	*/
2219		2129
		2130	void
2220	void set_cheat(object *op) {	2131	set_cheat (object *op)
		2132	{
2221	SET_FLAG(op, FLAG_WAS_WIZ);	2133	SET_FLAG (op, FLAG_WAS_WIZ);
2222	flag_inv(op, FLAG_WAS_WIZ);	2134	flag_inv (op, FLAG_WAS_WIZ);
2223	}	2135	}
2224		2136
2225	/*	2137	/*
2226	* find_free_spot(object, map, x, y, start, stop) will search for	2138	* 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	2139	* 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	2154	* 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	2155	* the archetype because that isn't correct if the monster has been
2244	* customized, changed states, etc.	2156	* customized, changed states, etc.
2245	*/	2157	*/
2246		2158
		2159	int
2247	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2160	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2161	{
		2162	int
		2163	i,
2248	int i,index=0, flag;	2164	index = 0, flag;
		2165	static int
2249	static int altern[SIZEOFFREE];	2166	altern[SIZEOFFREE];
2250		2167
2251	for(i=start;i<stop;i++) {	2168	for (i = start; i < stop; i++)
		2169	{
2252	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2170	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2253	if(!flag)	2171	if (!flag)
2254	altern[index++]=i;	2172	altern[index++] = i;
2255		2173
2256	/* Basically, if we find a wall on a space, we cut down the search size.	2174	/* 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.	2175	* 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 -	2176	* 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	2177	* 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	2178	* spaces in all the other directions, this will reduce the search space
2261	* to only the spaces immediately surrounding the target area, and	2179	* to only the spaces immediately surrounding the target area, and
2262	* won't look 2 spaces south of the target space.	2180	* won't look 2 spaces south of the target space.
2263	*/	2181	*/
2264	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2182	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)
2265	stop=maxfree[i];	2183	stop = maxfree[i];
2266	}	2184	}
2267	if(!index) return -1;	2185	if (!index)
		2186	return -1;
2268	return altern[RANDOM()%index];	2187	return altern[RANDOM () % index];
2269	}	2188	}
2270		2189
2271	/*	2190	/*
2272	* find_first_free_spot(archetype, mapstruct, x, y) works like	2191	* find_first_free_spot(archetype, maptile, x, y) works like
2273	* find_free_spot(), but it will search max number of squares.	2192	* find_free_spot(), but it will search max number of squares.
2274	* But it will return the first available spot, not a random choice.	2193	* But it will return the first available spot, not a random choice.
2275	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2194	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2276	*/	2195	*/
2277		2196
		2197	int
2278	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2198	find_first_free_spot (const object *ob, maptile *m, int x, int y)
		2199	{
		2200	int
2279	int i;	2201	i;
		2202
2280	for(i=0;i<SIZEOFFREE;i++) {	2203	for (i = 0; i < SIZEOFFREE; i++)
		2204	{
2281	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2205	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2282	return i;	2206	return i;
2283	}	2207	}
2284	return -1;	2208	return -1;
2285	}	2209	}
2286		2210
2287	/*	2211	/*
2288	* The function permute(arr, begin, end) randomly reorders the array	2212	* The function permute(arr, begin, end) randomly reorders the array
2289	* arr[begin..end-1].	2213	* arr[begin..end-1].
2290	*/	2214	*/
		2215	static void
2291	static void permute(int *arr, int begin, int end)	2216	permute (int *arr, int begin, int end)
2292	{	2217	{
2293	int i, j, tmp, len;	2218	int
		2219	i,
		2220	j,
		2221	tmp,
		2222	len;
2294		2223
2295	len = end-begin;	2224	len = end - begin;
2296	for(i = begin; i < end; i++)	2225	for (i = begin; i < end; i++)
2297	{	2226	{
2298	j = begin+RANDOM()%len;	2227	j = begin + RANDOM () % len;
2299		2228
2300	tmp = arr[i];	2229	tmp = arr[i];
2301	arr[i] = arr[j];	2230	arr[i] = arr[j];
2302	arr[j] = tmp;	2231	arr[j] = tmp;
2303	}	2232	}
2304	}	2233	}
2305		2234
2306	/* new function to make monster searching more efficient, and effective!	2235	/* new function to make monster searching more efficient, and effective!
2307	* This basically returns a randomized array (in the passed pointer) of	2236	* 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	2237	* 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	2238	* 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	2239	* 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.	2240	* the 3x3 area will be searched, just not in a predictable order.
2312	*/	2241	*/
		2242	void
2313	void get_search_arr(int *search_arr)	2243	get_search_arr (int *search_arr)
2314	{	2244	{
		2245	int
2315	int i;	2246	i;
2316		2247
2317	for(i = 0; i < SIZEOFFREE; i++)	2248	for (i = 0; i < SIZEOFFREE; i++)
2318	{	2249	{
2319	search_arr[i] = i;	2250	search_arr[i] = i;
2320	}	2251	}
2321		2252
2322	permute(search_arr, 1, SIZEOFFREE1+1);	2253	permute (search_arr, 1, SIZEOFFREE1 + 1);
2323	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2254	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2324	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2255	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2325	}	2256	}
2326		2257
2327	/*	2258	/*
2328	* find_dir(map, x, y, exclude) will search some close squares in the	2259	* find_dir(map, x, y, exclude) will search some close squares in the
2329	* given map at the given coordinates for live objects.	2260	* given map at the given coordinates for live objects.
…		…
2335	* is actually want is going to try and move there. We need this info	2266	* 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	2267	* because we have to know what movement the thing looking to move
2337	* there is capable of.	2268	* there is capable of.
2338	*/	2269	*/
2339		2270
		2271	int
2340	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2272	find_dir (maptile *m, int x, int y, object *exclude)
		2273	{
		2274	int
		2275	i,
2341	int i,max=SIZEOFFREE, mflags;	2276	max = SIZEOFFREE, mflags;
		2277
2342	sint16 nx, ny;	2278	sint16 nx, ny;
2343	object *tmp;	2279	object *
2344	mapstruct *mp;	2280	tmp;
		2281	maptile *
		2282	mp;
		2283
2345	MoveType blocked, move_type;	2284	MoveType blocked, move_type;
2346		2285
2347	if (exclude && exclude->head) {	2286	if (exclude && exclude->head)
		2287	{
2348	exclude = exclude->head;	2288	exclude = exclude->head;
2349	move_type = exclude->move_type;	2289	move_type = exclude->move_type;
2350	} else {	2290	}
		2291	else
		2292	{
2351	/* If we don't have anything, presume it can use all movement types. */	2293	/* If we don't have anything, presume it can use all movement types. */
2352	move_type=MOVE_ALL;	2294	move_type = MOVE_ALL;
		2295	}
		2296
		2297	for (i = 1; i < max; i++)
2353	}	2298	{
2354		2299	mp = m;
2355	for(i=1;i<max;i++) {
2356	mp = m;
2357	nx = x + freearr_x[i];	2300	nx = x + freearr_x[i];
2358	ny = y + freearr_y[i];	2301	ny = y + freearr_y[i];
2359		2302
2360	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2303	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
2361	if (mflags & P_OUT_OF_MAP) {	2304	if (mflags & P_OUT_OF_MAP)
		2305	{
2362	max = maxfree[i];	2306	max = maxfree[i];
2363	} else {	2307	}
		2308	else
		2309	{
2364	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2310	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
2365		2311
2366	if ((move_type & blocked) == move_type) {	2312	if ((move_type & blocked) == move_type)
2367	max=maxfree[i];	2313	{
		2314	max = maxfree[i];
		2315	}
2368	} else if (mflags & P_IS_ALIVE) {	2316	else if (mflags & P_IS_ALIVE)
		2317	{
2369	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2318	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2370	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2319	{
2371	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2320	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2372	break;	2321	{
2373	}	2322	break;
2374	}	2323	}
2375	if(tmp) {	2324	}
2376	return freedir[i];	2325	if (tmp)
2377	}	2326	{
		2327	return freedir[i];
		2328	}
		2329	}
		2330	}
2378	}	2331	}
2379	}
2380	}
2381	return 0;	2332	return 0;
2382	}	2333	}
2383		2334
2384	/*	2335	/*
2385	* distance(object 1, object 2) will return the square of the	2336	* distance(object 1, object 2) will return the square of the
2386	* distance between the two given objects.	2337	* distance between the two given objects.
2387	*/	2338	*/
2388		2339
		2340	int
2389	int distance(const object *ob1, const object *ob2) {	2341	distance (const object *ob1, const object *ob2)
		2342	{
2390	int i;	2343	int
2391	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2344	i;
2392	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2345
		2346	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2393	return i;	2347	return i;
2394	}	2348	}
2395		2349
2396	/*	2350	/*
2397	* find_dir_2(delta-x,delta-y) will return a direction in which	2351	* 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	2352	* an object which has subtracted the x and y coordinates of another
2399	* object, needs to travel toward it.	2353	* object, needs to travel toward it.
2400	*/	2354	*/
2401		2355
		2356	int
2402	int find_dir_2(int x, int y) {	2357	find_dir_2 (int x, int y)
		2358	{
2403	int q;	2359	int
		2360	q;
2404		2361
2405	if(y)	2362	if (y)
2406	q=x*100/y;	2363	q = x * 100 / y;
2407	else if (x)	2364	else if (x)
2408	q= -300*x;	2365	q = -300 * x;
2409	else	2366	else
2410	return 0;	2367	return 0;
2411		2368
2412	if(y>0) {	2369	if (y > 0)
		2370	{
2413	if(q < -242)	2371	if (q < -242)
2414	return 3 ;	2372	return 3;
2415	if (q < -41)	2373	if (q < -41)
2416	return 2 ;	2374	return 2;
2417	if (q < 41)	2375	if (q < 41)
2418	return 1 ;	2376	return 1;
2419	if (q < 242)	2377	if (q < 242)
2420	return 8 ;	2378	return 8;
2421	return 7 ;	2379	return 7;
2422	}	2380	}
2423		2381
2424	if (q < -242)	2382	if (q < -242)
2425	return 7 ;	2383	return 7;
2426	if (q < -41)	2384	if (q < -41)
2427	return 6 ;	2385	return 6;
2428	if (q < 41)	2386	if (q < 41)
2429	return 5 ;	2387	return 5;
2430	if (q < 242)	2388	if (q < 242)
2431	return 4 ;	2389	return 4;
2432		2390
2433	return 3 ;	2391	return 3;
2434	}	2392	}
2435		2393
2436	/*	2394	/*
2437	* absdir(int): Returns a number between 1 and 8, which represent	2395	* absdir(int): Returns a number between 1 and 8, which represent
2438	* the "absolute" direction of a number (it actually takes care of	2396	* the "absolute" direction of a number (it actually takes care of
2439	* "overflow" in previous calculations of a direction).	2397	* "overflow" in previous calculations of a direction).
2440	*/	2398	*/
2441		2399
		2400	int
2442	int absdir(int d) {	2401	absdir (int d)
2443	while(d<1) d+=8;	2402	{
2444	while(d>8) d-=8;	2403	while (d < 1)
		2404	d += 8;
		2405	while (d > 8)
		2406	d -= 8;
2445	return d;	2407	return d;
2446	}	2408	}
2447		2409
2448	/*	2410	/*
2449	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2411	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2450	* between two directions (which are expected to be absolute (see absdir())	2412	* between two directions (which are expected to be absolute (see absdir())
2451	*/	2413	*/
2452		2414
		2415	int
2453	int dirdiff(int dir1, int dir2) {	2416	dirdiff (int dir1, int dir2)
		2417	{
2454	int d;	2418	int
		2419	d;
		2420
2455	d = abs(dir1 - dir2);	2421	d = abs (dir1 - dir2);
2456	if(d>4)	2422	if (d > 4)
2457	d = 8 - d;	2423	d = 8 - d;
2458	return d;	2424	return d;
2459	}	2425	}
2460		2426
2461	/* peterm:	2427	/* peterm:
…		…
2466	* direction 4, 14, or 16 to get back to where we are.	2432	* 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	2433	* Moved from spell_util.c to object.c with the other related direction
2468	* functions.	2434	* functions.
2469	*/	2435	*/
2470		2436
		2437	int
2471	int reduction_dir[SIZEOFFREE][3] = {	2438	reduction_dir[SIZEOFFREE][3] = {
2472	{0,0,0}, /* 0 */	2439	{0, 0, 0}, /* 0 */
2473	{0,0,0}, /* 1 */	2440	{0, 0, 0}, /* 1 */
2474	{0,0,0}, /* 2 */	2441	{0, 0, 0}, /* 2 */
2475	{0,0,0}, /* 3 */	2442	{0, 0, 0}, /* 3 */
2476	{0,0,0}, /* 4 */	2443	{0, 0, 0}, /* 4 */
2477	{0,0,0}, /* 5 */	2444	{0, 0, 0}, /* 5 */
2478	{0,0,0}, /* 6 */	2445	{0, 0, 0}, /* 6 */
2479	{0,0,0}, /* 7 */	2446	{0, 0, 0}, /* 7 */
2480	{0,0,0}, /* 8 */	2447	{0, 0, 0}, /* 8 */
2481	{8,1,2}, /* 9 */	2448	{8, 1, 2}, /* 9 */
2482	{1,2,-1}, /* 10 */	2449	{1, 2, -1}, /* 10 */
2483	{2,10,12}, /* 11 */	2450	{2, 10, 12}, /* 11 */
2484	{2,3,-1}, /* 12 */	2451	{2, 3, -1}, /* 12 */
2485	{2,3,4}, /* 13 */	2452	{2, 3, 4}, /* 13 */
2486	{3,4,-1}, /* 14 */	2453	{3, 4, -1}, /* 14 */
2487	{4,14,16}, /* 15 */	2454	{4, 14, 16}, /* 15 */
2488	{5,4,-1}, /* 16 */	2455	{5, 4, -1}, /* 16 */
2489	{4,5,6}, /* 17 */	2456	{4, 5, 6}, /* 17 */
2490	{6,5,-1}, /* 18 */	2457	{6, 5, -1}, /* 18 */
2491	{6,20,18}, /* 19 */	2458	{6, 20, 18}, /* 19 */
2492	{7,6,-1}, /* 20 */	2459	{7, 6, -1}, /* 20 */
2493	{6,7,8}, /* 21 */	2460	{6, 7, 8}, /* 21 */
2494	{7,8,-1}, /* 22 */	2461	{7, 8, -1}, /* 22 */
2495	{8,22,24}, /* 23 */	2462	{8, 22, 24}, /* 23 */
2496	{8,1,-1}, /* 24 */	2463	{8, 1, -1}, /* 24 */
2497	{24,9,10}, /* 25 */	2464	{24, 9, 10}, /* 25 */
2498	{9,10,-1}, /* 26 */	2465	{9, 10, -1}, /* 26 */
2499	{10,11,-1}, /* 27 */	2466	{10, 11, -1}, /* 27 */
2500	{27,11,29}, /* 28 */	2467	{27, 11, 29}, /* 28 */
2501	{11,12,-1}, /* 29 */	2468	{11, 12, -1}, /* 29 */
2502	{12,13,-1}, /* 30 */	2469	{12, 13, -1}, /* 30 */
2503	{12,13,14}, /* 31 */	2470	{12, 13, 14}, /* 31 */
2504	{13,14,-1}, /* 32 */	2471	{13, 14, -1}, /* 32 */
2505	{14,15,-1}, /* 33 */	2472	{14, 15, -1}, /* 33 */
2506	{33,15,35}, /* 34 */	2473	{33, 15, 35}, /* 34 */
2507	{16,15,-1}, /* 35 */	2474	{16, 15, -1}, /* 35 */
2508	{17,16,-1}, /* 36 */	2475	{17, 16, -1}, /* 36 */
2509	{18,17,16}, /* 37 */	2476	{18, 17, 16}, /* 37 */
2510	{18,17,-1}, /* 38 */	2477	{18, 17, -1}, /* 38 */
2511	{18,19,-1}, /* 39 */	2478	{18, 19, -1}, /* 39 */
2512	{41,19,39}, /* 40 */	2479	{41, 19, 39}, /* 40 */
2513	{19,20,-1}, /* 41 */	2480	{19, 20, -1}, /* 41 */
2514	{20,21,-1}, /* 42 */	2481	{20, 21, -1}, /* 42 */
2515	{20,21,22}, /* 43 */	2482	{20, 21, 22}, /* 43 */
2516	{21,22,-1}, /* 44 */	2483	{21, 22, -1}, /* 44 */
2517	{23,22,-1}, /* 45 */	2484	{23, 22, -1}, /* 45 */
2518	{45,47,23}, /* 46 */	2485	{45, 47, 23}, /* 46 */
2519	{23,24,-1}, /* 47 */	2486	{23, 24, -1}, /* 47 */
2520	{24,9,-1}}; /* 48 */	2487	{24, 9, -1}
		2488	}; /* 48 */
2521		2489
2522	/* Recursive routine to step back and see if we can	2490	/* Recursive routine to step back and see if we can
2523	* find a path to that monster that we found. If not,	2491	* find a path to that monster that we found. If not,
2524	* we don't bother going toward it. Returns 1 if we	2492	* we don't bother going toward it. Returns 1 if we
2525	* can see a direct way to get it	2493	* can see a direct way to get it
2526	* Modified to be map tile aware -.MSW	2494	* Modified to be map tile aware -.MSW
2527	*/	2495	*/
2528
2529		2496
		2497
		2498	int
2530	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2499	can_see_monsterP (maptile *m, int x, int y, int dir)
		2500	{
2531	sint16 dx, dy;	2501	sint16 dx, dy;
		2502	int
2532	int mflags;	2503	mflags;
2533		2504
		2505	if (dir < 0)
2534	if(dir<0) return 0; /* exit condition: invalid direction */	2506	return 0; /* exit condition: invalid direction */
2535		2507
2536	dx = x + freearr_x[dir];	2508	dx = x + freearr_x[dir];
2537	dy = y + freearr_y[dir];	2509	dy = y + freearr_y[dir];
2538		2510
2539	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2511	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2540		2512
2541	/* This functional arguably was incorrect before - it was	2513	/* This functional arguably was incorrect before - it was
2542	* checking for P_WALL - that was basically seeing if	2514	* checking for P_WALL - that was basically seeing if
2543	* we could move to the monster - this is being more	2515	* we could move to the monster - this is being more
2544	* literal on if we can see it. To know if we can actually	2516	* 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	2517	* move to the monster, we'd need the monster passed in or
2546	* at least its move type.	2518	* at least its move type.
2547	*/	2519	*/
2548	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2520	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2521	return 0;
2549		2522
2550	/* yes, can see. */	2523	/* yes, can see. */
2551	if(dir < 9) return 1;	2524	if (dir < 9)
		2525	return 1;
2552	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2526	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |
2553	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2527	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	}	2528	}
2556		2529
2557		2530
2558		2531
2559	/*	2532	/*
2560	* can_pick(picker, item): finds out if an object is possible to be	2533	* 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	2534	* picked up by the picker. Returnes 1 if it can be
2562	* picked up, otherwise 0.	2535	* picked up, otherwise 0.
2563	*	2536	*
…		…
2565	* core dumps if they do.	2538	* core dumps if they do.
2566	*	2539	*
2567	* Add a check so we can't pick up invisible objects (0.93.8)	2540	* Add a check so we can't pick up invisible objects (0.93.8)
2568	*/	2541	*/
2569		2542
		2543	int
2570	int can_pick(const object *who, const object *item) {	2544	can_pick (const object *who, const object *item)
		2545	{
2571	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2546	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2572	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2547	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2573	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2548	!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	}	2549	}
2576		2550
2577		2551
2578	/*	2552	/*
2579	* create clone from object to another	2553	* create clone from object to another
2580	*/	2554	*/
		2555	object *
2581	object *object_create_clone (object *asrc) {	2556	object_create_clone (object *asrc)
		2557	{
		2558	object *
2582	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2559	dst = NULL, *tmp, *src, *part, *prev, *item;
2583		2560
		2561	if (!asrc)
2584	if(!asrc) return NULL;	2562	return NULL;
2585	src = asrc;	2563	src = asrc;
2586	if(src->head)	2564	if (src->head)
2587	src = src->head;	2565	src = src->head;
2588		2566
2589	prev = NULL;	2567	prev = NULL;
2590	for(part = src; part; part = part->more) {	2568	for (part = src; part; part = part->more)
		2569	{
2591	tmp = get_object();	2570	tmp = get_object ();
2592	copy_object(part,tmp);	2571	copy_object (part, tmp);
2593	tmp->x -= src->x;	2572	tmp->x -= src->x;
2594	tmp->y -= src->y;	2573	tmp->y -= src->y;
2595	if(!part->head) {	2574	if (!part->head)
		2575	{
2596	dst = tmp;	2576	dst = tmp;
2597	tmp->head = NULL;	2577	tmp->head = NULL;
		2578	}
2598	} else {	2579	else
		2580	{
2599	tmp->head = dst;	2581	tmp->head = dst;
2600	}	2582	}
2601	tmp->more = NULL;	2583	tmp->more = NULL;
2602	if(prev)	2584	if (prev)
2603	prev->more = tmp;	2585	prev->more = tmp;
2604	prev = tmp;	2586	prev = tmp;
2605	}	2587	}
2606	/*** copy inventory ***/	2588
2607	for(item = src->inv; item; item = item->below) {	2589	for (item = src->inv; item; item = item->below)
2608	(void) insert_ob_in_ob(object_create_clone(item),dst);	2590	insert_ob_in_ob (object_create_clone (item), dst);
2609	}
2610		2591
2611	return dst;	2592	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	}	2593	}
2621		2594
2622	/* GROS - Creates an object using a string representing its content. */	2595	/* 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 */	2596	/* 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, */	2597	/* 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. */	2598	/* 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. */	2599	/* Remember not to use load_object_str in a time-critical situation. */
2627	/* Also remember that multiparts objects are not supported for now. */	2600	/* Also remember that multiparts objects are not supported for now. */
2628		2601
		2602	object *
2629	object* load_object_str(const char *obstr)	2603	load_object_str (const char *obstr)
2630	{	2604	{
2631	object *op;	2605	object *op;
2632	FILE *tempfile;
2633	char filename[MAX_BUF];	2606	char filename[MAX_BUF];
		2607
2634	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2608	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
		2609
2635	tempfile=fopen(filename,"w");	2610	FILE *tempfile = fopen (filename, "w");
		2611
2636	if (tempfile == NULL)	2612	if (tempfile == NULL)
2637	{	2613	{
2638	LOG(llevError,"Error - Unable to access load object temp file\n");	2614	LOG (llevError, "Error - Unable to access load object temp file\n");
2639	return NULL;	2615	return NULL;
2640	};	2616	}
		2617
2641	fprintf(tempfile,obstr);	2618	fprintf (tempfile, obstr);
2642	fclose(tempfile);	2619	fclose (tempfile);
2643		2620
2644	op=get_object();	2621	op = get_object ();
2645		2622
2646	tempfile=fopen(filename,"r");	2623	object_thawer thawer (filename);
2647	if (tempfile == NULL)	2624
2648	{	2625	if (thawer)
2649	LOG(llevError,"Error - Unable to read object temp file\n");	2626	load_object (thawer, op, 0);
2650	return NULL;	2627
2651	};
2652	load_object(tempfile,op,LO_NEWFILE,0);
2653	LOG(llevDebug," load str completed, object=%s\n",op->name);	2628	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2654	CLEAR_FLAG(op,FLAG_REMOVED);	2629	CLEAR_FLAG (op, FLAG_REMOVED);
2655	fclose(tempfile);	2630
2656	return op;	2631	return op;
2657	}	2632	}
2658		2633
2659	/* This returns the first object in who's inventory that	2634	/* This returns the first object in who's inventory that
2660	* has the same type and subtype match.	2635	* has the same type and subtype match.
2661	* returns NULL if no match.	2636	* returns NULL if no match.
2662	*/	2637	*/
		2638	object *
2663	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2639	find_obj_by_type_subtype (const object *who, int type, int subtype)
2664	{	2640	{
2665	object *tmp;	2641	object *tmp;
2666		2642
2667	for (tmp=who->inv; tmp; tmp=tmp->below)	2643	for (tmp = who->inv; tmp; tmp = tmp->below)
2668	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2644	if (tmp->type == type && tmp->subtype == subtype)
		2645	return tmp;
2669		2646
2670	return NULL;	2647	return NULL;
2671	}	2648	}
2672		2649
2673	/* If ob has a field named key, return the link from the list,	2650	/* If ob has a field named key, return the link from the list,
2674	* otherwise return NULL.	2651	* otherwise return NULL.
2675	*	2652	*
2676	* key must be a passed in shared string - otherwise, this won't	2653	* key must be a passed in shared string - otherwise, this won't
2677	* do the desired thing.	2654	* do the desired thing.
2678	*/	2655	*/
		2656	key_value *
2679	key_value * get_ob_key_link(const object * ob, const char * key) {	2657	get_ob_key_link (const object *ob, const char *key)
		2658	{
2680	key_value * link;	2659	key_value *link;
2681		2660
2682	for (link = ob->key_values; link != NULL; link = link->next) {	2661	for (link = ob->key_values; link != NULL; link = link->next)
2683	if (link->key == key) {	2662	if (link->key == key)
2684	return link;	2663	return link;
2685	}	2664
2686	}
2687
2688	return NULL;	2665	return NULL;
2689	}	2666	}
2690		2667
2691	/*	2668	/*
2692	* Returns the value of op has an extra_field for key, or NULL.	2669	* Returns the value of op has an extra_field for key, or NULL.
2693	*	2670	*
2694	* The argument doesn't need to be a shared string.	2671	* The argument doesn't need to be a shared string.
2695	*	2672	*
2696	* The returned string is shared.	2673	* The returned string is shared.
2697	*/	2674	*/
		2675	const char *
2698	const char * get_ob_key_value(const object * op, const char * const key) {	2676	get_ob_key_value (const object *op, const char *const key)
		2677	{
2699	key_value * link;	2678	key_value *link;
2700	const char * canonical_key;	2679	shstr_cmp canonical_key (key);
		2680
		2681	if (!canonical_key)
2701		2682	{
2702	canonical_key = find_string(key);
2703
2704	if (canonical_key == NULL) {
2705	/* 1. There being a field named key on any object	2683	/* 1. There being a field named key on any object
2706	* implies there'd be a shared string to find.	2684	* implies there'd be a shared string to find.
2707	* 2. Since there isn't, no object has this field.	2685	* 2. Since there isn't, no object has this field.
2708	* 3. Therefore, *this* object doesn't have this field.	2686	* 3. Therefore, *this* object doesn't have this field.
2709	*/	2687	*/
2710	return NULL;	2688	return 0;
2711	}	2689	}
2712		2690
2713	/* This is copied from get_ob_key_link() above -	2691	/* This is copied from get_ob_key_link() above -
2714	* only 4 lines, and saves the function call overhead.	2692	* only 4 lines, and saves the function call overhead.
2715	*/	2693	*/
2716	for (link = op->key_values; link != NULL; link = link->next) {	2694	for (link = op->key_values; link; link = link->next)
2717	if (link->key == canonical_key) {	2695	if (link->key == canonical_key)
2718	return link->value;	2696	return link->value;
2719	}	2697
2720	}	2698	return 0;
2721	return NULL;
2722	}	2699	}
2723		2700
2724		2701
2725	/*	2702	/*
2726	* Updates the canonical_key in op to value.	2703	* 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	2707	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2731	* keys.	2708	* keys.
2732	*	2709	*
2733	* Returns TRUE on success.	2710	* Returns TRUE on success.
2734	*/	2711	*/
		2712	int
2735	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2713	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2714	{
		2715	key_value *
2736	key_value * field = NULL, *last=NULL;	2716	field = NULL, *last = NULL;
2737		2717
2738	for (field=op->key_values; field != NULL; field=field->next) {	2718	for (field = op->key_values; field != NULL; field = field->next)
2739	if (field->key != canonical_key) {
2740	last = field;
2741	continue;
2742	}
2743		2719	{
2744	if (field->value) FREE_AND_CLEAR_STR(field->value);	2720	if (field->key != canonical_key)
2745	if (value)	2721	{
2746	field->value = add_string(value);	2722	last = field;
2747	else {	2723	continue;
		2724	}
		2725
		2726	if (value)
		2727	field->value = value;
		2728	else
		2729	{
2748	/* Basically, if the archetype has this key set,	2730	/* Basically, if the archetype has this key set,
2749	* we need to store the null value so when we save	2731	* we need to store the null value so when we save
2750	* it, we save the empty value so that when we load,	2732	* it, we save the empty value so that when we load,
2751	* we get this value back again.	2733	* we get this value back again.
2752	*/	2734	*/
2753	if (get_ob_key_link(&op->arch->clone, canonical_key))	2735	if (get_ob_key_link (&op->arch->clone, canonical_key))
2754	field->value = NULL;	2736	field->value = 0;
2755	else {	2737	else
2756	/* Delete this link */	2738	{
2757	if (field->key) FREE_AND_CLEAR_STR(field->key);	2739	if (last)
2758	if (field->value) FREE_AND_CLEAR_STR(field->value);	2740	last->next = field->next;
2759	if (last) last->next = field->next;	2741	else
2760	else op->key_values = field->next;	2742	op->key_values = field->next;
2761	free(field);	2743
2762	}	2744	delete field;
2763	}	2745	}
		2746	}
2764	return TRUE;	2747	return TRUE;
2765	}	2748	}
2766	/* IF we get here, key doesn't exist */	2749	/* IF we get here, key doesn't exist */
2767		2750
2768	/* No field, we'll have to add it. */	2751	/* No field, we'll have to add it. */
		2752
		2753	if (!add_key)
2769		2754	{
2770	if (!add_key) {
2771	return FALSE;	2755	return FALSE;
2772	}	2756	}
2773	/* There isn't any good reason to store a null	2757	/* There isn't any good reason to store a null
2774	* value in the key/value list. If the archetype has	2758	* value in the key/value list. If the archetype has
2775	* this key, then we should also have it, so shouldn't	2759	* this key, then we should also have it, so shouldn't
2776	* be here. If user wants to store empty strings,	2760	* be here. If user wants to store empty strings,
2777	* should pass in ""	2761	* should pass in ""
2778	*/	2762	*/
2779	if (value == NULL) return TRUE;	2763	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;	2764	return TRUE;
		2765
		2766	field = new key_value;
		2767
		2768	field->key = canonical_key;
		2769	field->value = value;
		2770	/* Usual prepend-addition. */
		2771	field->next = op->key_values;
		2772	op->key_values = field;
		2773
		2774	return TRUE;
2790	}	2775	}
2791		2776
2792	/*	2777	/*
2793	* Updates the key in op to value.	2778	* Updates the key in op to value.
2794	*	2779	*
…		…
2796	* and not add new ones.	2781	* and not add new ones.
2797	* In general, should be little reason FALSE is ever passed in for add_key	2782	* In general, should be little reason FALSE is ever passed in for add_key
2798	*	2783	*
2799	* Returns TRUE on success.	2784	* Returns TRUE on success.
2800	*/	2785	*/
		2786	int
2801	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2787	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2802	const char * canonical_key = NULL;	2788	{
2803	int floating_ref = FALSE;	2789	shstr key_ (key);
2804	int ret;	2790
		2791	return set_ob_key_value_s (op, key_, value, add_key);
		2792	}
		2793
		2794	object::depth_iterator::depth_iterator (object *container)
		2795	: iterator_base (container)
		2796	{
		2797	while (item->inv)
		2798	item = item->inv;
		2799	}
		2800
		2801	void
		2802	object::depth_iterator::next ()
		2803	{
		2804	if (item->below)
2805		2805	{
2806	/* HACK This mess is to make sure set_ob_value() passes a shared string	2806	item = item->below;
2807	* to get_ob_key_link(), without leaving a leaked refcount.	2807
2808	*/	2808	while (item->inv)
		2809	item = item->inv;
2809		2810	}
2810	canonical_key = find_string(key);	2811	else
2811	if (canonical_key == NULL) {	2812	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	}	2813	}
		2814
		2815	// return a suitable string describing an objetc in enough detail to find it
		2816	const char *
		2817	object::debug_desc (char *info) const
		2818	{
		2819	char info2[256 * 3];
		2820	char *p = info;
		2821
		2822	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2823	count,
		2824	&name,
		2825	title ? " " : "",
		2826	title ? (const char *)title : "");
		2827
		2828	if (env)
		2829	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2830
		2831	if (map)
		2832	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2833
		2834	return info;
		2835	}
		2836
		2837	const char *
		2838	object::debug_desc () const
		2839	{
		2840	static char info[256 * 3];
		2841	return debug_desc (info);
		2842	}
		2843

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