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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 1.65 by root, Wed Dec 13 00:42:03 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: %" PRId64 "\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;
653
654	}	529	}
655		530
656	/*	531	/*
657	* copy object first frees everything allocated by the second object,	532	* copy_to first frees everything allocated by the dst object,
658	* and then copies the contends of the first object into the second	533	* and then copies the contents of itself into the second
659	* object, allocating what needs to be allocated. Basically, any	534	* object, allocating what needs to be allocated. Basically, any
660	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	535	* 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	536	* if the first object is freed, the pointers in the new object
662	* will point at garbage.	537	* will point at garbage.
663	*/	538	*/
		539	void
		540	object::copy_to (object *dst)
		541	{
		542	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
		543	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
664		544
665	void copy_object(object *op2, object *op) {	545	*(object_copy *)dst = *this;
666	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);	546	*(object_pod *)dst = *this;
667	event *evt, *evt2, *evt_new;
668		547
669	if (object_free_callback)	548	if (self || cb)
670	object_free_callback (op);	549	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
671		550
672	// callback registries and self are empty for copied objects	551	if (is_freed)
673	// this ought to change in the future	552	SET_FLAG (dst, FLAG_FREED);
674		553
675	/* Decrement the refcounts, but don't bother zeroing the fields;	554	if (is_removed)
676	they'll be overwritten by memcpy. */	555	SET_FLAG (dst, FLAG_REMOVED);
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		556
688	/* Basically, same code as from clear_object() */	557	if (speed < 0)
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;	558	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
719		559
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. */	560	/* Copy over key_values, if any. */
742	if (op2->key_values != NULL) {	561	if (key_values)
743	key_value * tail = NULL;	562	{
		563	key_value *tail = 0;
744	key_value * i;	564	key_value *i;
745		565
746	op->key_values = NULL;	566	dst->key_values = 0;
747		567
748	for (i = op2->key_values; i != NULL; i = i->next) {	568	for (i = key_values; i; i = i->next)
749	key_value * new_link = (key_value *) malloc(sizeof(key_value));	569	{
		570	key_value *new_link = new key_value;
750		571
751	new_link->next = NULL;	572	new_link->next = 0;
752	new_link->key = add_refcount(i->key);	573	new_link->key = i->key;
753	if (i->value)	574	new_link->value = i->value;
754	new_link->value = add_refcount(i->value);
755	else
756	new_link->value = NULL;
757		575
758	/* Try and be clever here, too. */	576	/* Try and be clever here, too. */
759	if (op->key_values == NULL) {	577	if (!dst->key_values)
760	op->key_values = new_link;	578	{
761	tail = new_link;	579	dst->key_values = new_link;
762	} else {	580	tail = new_link;
763	tail->next = new_link;	581	}
764	tail = new_link;	582	else
		583	{
		584	tail->next = new_link;
		585	tail = new_link;
		586	}
		587	}
765	}	588	}
766	}
767	}
768		589
769	update_ob_speed(op);	590	update_ob_speed (dst);
770	}	591	}
771		592
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;	593	object *
813		594	object::clone ()
814	if(free_objects==NULL) {	595	{
815	expand_objects();	596	object *neu = create ();
816	}	597	copy_to (neu);
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;	598	return neu;
855	}	599	}
856		600
857	/*	601	/*
858	* If an object with the IS_TURNABLE() flag needs to be turned due	602	* 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	603	* 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.	604	* be called to update the face variable, _and_ how it looks on the map.
861	*/	605	*/
862		606
		607	void
863	void update_turn_face(object *op) {	608	update_turn_face (object *op)
		609	{
864	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	610	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
865	return;	611	return;
866	SET_ANIMATION(op, op->direction);	612	SET_ANIMATION (op, op->direction);
867	update_object(op,UP_OBJ_FACE);	613	update_object (op, UP_OBJ_FACE);
868	}	614	}
869		615
870	/*	616	/*
871	* Updates the speed of an object. If the speed changes from 0 to another	617	* 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.	618	* 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.	619	* This function needs to be called whenever the speed of an object changes.
874	*/	620	*/
875		621	void
876	void update_ob_speed(object *op) {	622	update_ob_speed (object *op)
		623	{
877	extern int arch_init;	624	extern int arch_init;
878		625
879	/* No reason putting the archetypes objects on the speed list,	626	/* No reason putting the archetypes objects on the speed list,
880	* since they never really need to be updated.	627	* since they never really need to be updated.
881	*/	628	*/
882		629
883	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	630	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		631	{
884	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	632	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
885	#ifdef MANY_CORES	633	#ifdef MANY_CORES
886	abort();	634	abort ();
887	#else	635	#else
888	op->speed = 0;	636	op->speed = 0;
889	#endif	637	#endif
890	}	638	}
		639
891	if (arch_init) {	640	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;	641	return;
898		642
		643	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		644	{
		645	/* If already on active list, don't do anything */
		646	if (op->active_next || op->active_prev || op == active_objects)
		647	return;
		648
899	/* process_events() expects us to insert the object at the beginning	649	/* process_events() expects us to insert the object at the beginning
900	* of the list. */	650	* of the list. */
901	op->active_next = active_objects;	651	op->active_next = active_objects;
		652
902	if (op->active_next!=NULL)	653	if (op->active_next != NULL)
903	op->active_next->active_prev = op;	654	op->active_next->active_prev = op;
		655
904	active_objects = op;	656	active_objects = op;
		657	}
		658	else
905	}	659	{
906	else {
907	/* If not on the active list, nothing needs to be done */	660	/* If not on the active list, nothing needs to be done */
908	if (!op->active_next && !op->active_prev && op!=active_objects)	661	if (!op->active_next && !op->active_prev && op != active_objects)
909	return;	662	return;
910		663
911	if (op->active_prev==NULL) {	664	if (op->active_prev == NULL)
		665	{
912	active_objects = op->active_next;	666	active_objects = op->active_next;
		667
913	if (op->active_next!=NULL)	668	if (op->active_next != NULL)
914	op->active_next->active_prev = NULL;	669	op->active_next->active_prev = NULL;
915	}	670	}
916	else {	671	else
		672	{
917	op->active_prev->active_next = op->active_next;	673	op->active_prev->active_next = op->active_next;
		674
918	if (op->active_next)	675	if (op->active_next)
919	op->active_next->active_prev = op->active_prev;	676	op->active_next->active_prev = op->active_prev;
920	}	677	}
		678
921	op->active_next = NULL;	679	op->active_next = NULL;
922	op->active_prev = NULL;	680	op->active_prev = NULL;
923	}	681	}
924	}	682	}
925		683
926	/* This function removes object 'op' from the list of active	684	/* This function removes object 'op' from the list of active
927	* objects.	685	* objects.
…		…
929	* reference maps where you don't want an object that isn't	687	* reference maps where you don't want an object that isn't
930	* in play chewing up cpu time getting processed.	688	* in play chewing up cpu time getting processed.
931	* The reverse of this is to call update_ob_speed, which	689	* The reverse of this is to call update_ob_speed, which
932	* will do the right thing based on the speed of the object.	690	* will do the right thing based on the speed of the object.
933	*/	691	*/
		692	void
934	void remove_from_active_list(object *op)	693	remove_from_active_list (object *op)
935	{	694	{
936	/* If not on the active list, nothing needs to be done */	695	/* If not on the active list, nothing needs to be done */
937	if (!op->active_next && !op->active_prev && op!=active_objects)	696	if (!op->active_next && !op->active_prev && op != active_objects)
938	return;	697	return;
939		698
940	if (op->active_prev==NULL) {	699	if (op->active_prev == NULL)
		700	{
941	active_objects = op->active_next;	701	active_objects = op->active_next;
942	if (op->active_next!=NULL)	702	if (op->active_next != NULL)
943	op->active_next->active_prev = NULL;	703	op->active_next->active_prev = NULL;
		704	}
		705	else
944	}	706	{
945	else {
946	op->active_prev->active_next = op->active_next;	707	op->active_prev->active_next = op->active_next;
947	if (op->active_next)	708	if (op->active_next)
948	op->active_next->active_prev = op->active_prev;	709	op->active_next->active_prev = op->active_prev;
949	}	710	}
950	op->active_next = NULL;	711	op->active_next = NULL;
951	op->active_prev = NULL;	712	op->active_prev = NULL;
952	}	713	}
953		714
954	/*	715	/*
955	* update_object() updates the array which represents the map.	716	* update_object() updates the array which represents the map.
956	* It takes into account invisible objects (and represent squares covered	717	* It takes into account invisible objects (and represent squares covered
…		…
971	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	732	* 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.	733	* as that is easier than trying to look at what may have changed.
973	* UP_OBJ_FACE: only the objects face has changed.	734	* UP_OBJ_FACE: only the objects face has changed.
974	*/	735	*/
975		736
		737	void
976	void update_object(object *op, int action) {	738	update_object (object *op, int action)
		739	{
977	int update_now=0, flags;	740	int update_now = 0, flags;
978	MoveType move_on, move_off, move_block, move_slow;	741	MoveType move_on, move_off, move_block, move_slow;
979		742
980	if (op == NULL) {	743	if (op == NULL)
		744	{
981	/* this should never happen */	745	/* this should never happen */
982	LOG(llevDebug,"update_object() called for NULL object.\n");	746	LOG (llevDebug, "update_object() called for NULL object.\n");
983	return;	747	return;
984	}
985		748	}
		749
986	if(op->env!=NULL) {	750	if (op->env != NULL)
		751	{
987	/* Animation is currently handled by client, so nothing	752	/* Animation is currently handled by client, so nothing
988	* to do in this case.	753	* to do in this case.
989	*/	754	*/
990	return;	755	return;
991	}	756	}
992		757
993	/* If the map is saving, don't do anything as everything is	758	/* If the map is saving, don't do anything as everything is
994	* going to get freed anyways.	759	* going to get freed anyways.
995	*/	760	*/
996	if (!op->map || op->map->in_memory == MAP_SAVING) return;	761	if (!op->map || op->map->in_memory == MAP_SAVING)
997		762	return;
		763
998	/* make sure the object is within map boundaries */	764	/* make sure the object is within map boundaries */
999	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	765	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)) {	766	{
1001	LOG(llevError,"update_object() called for object out of map!\n");	767	LOG (llevError, "update_object() called for object out of map!\n");
1002	#ifdef MANY_CORES	768	#ifdef MANY_CORES
1003	abort();	769	abort ();
1004	#endif	770	#endif
1005	return;	771	return;
1006	}
1007		772	}
		773
1008	flags = GET_MAP_FLAGS(op->map, op->x, op->y);	774	flags = GET_MAP_FLAGS (op->map, op->x, op->y);
1009	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);	775	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);	776	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);	777	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);	778	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);	779	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
1014		780
1015	if (action == UP_OBJ_INSERT) {	781	if (action == UP_OBJ_INSERT)
		782	{
1016	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	783	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))
1017	update_now=1;	784	update_now = 1;
1018		785
1019	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	786	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))
1020	update_now=1;	787	update_now = 1;
1021		788
1022	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	789	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))
1023	update_now=1;	790	update_now = 1;
1024		791
1025	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	792	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
1026	update_now=1;	793	update_now = 1;
1027		794
		795	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
		796	update_now = 1;
		797
1028	if ((move_on | op->move_on) != move_on) update_now=1;	798	if ((move_on | op->move_on) != move_on)
		799	update_now = 1;
		800
1029	if ((move_off | op->move_off) != move_off) update_now=1;	801	if ((move_off | op->move_off) != move_off)
		802	update_now = 1;
		803
1030	/* This isn't perfect, but I don't expect a lot of objects to	804	/* This isn't perfect, but I don't expect a lot of objects to
1031	* to have move_allow right now.	805	* to have move_allow right now.
1032	*/	806	*/
1033	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	807	if (((move_block | op->move_block) & ~op->move_allow) != move_block)
1034	update_now=1;	808	update_now = 1;
		809
1035	if ((move_slow | op->move_slow) != move_slow) update_now=1;	810	if ((move_slow | op->move_slow) != move_slow)
		811	update_now = 1;
1036	}	812	}
		813
1037	/* if the object is being removed, we can't make intelligent	814	/* if the object is being removed, we can't make intelligent
1038	* decisions, because remove_ob can't really pass the object	815	* decisions, because remove_ob can't really pass the object
1039	* that is being removed.	816	* that is being removed.
1040	*/	817	*/
1041	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	818	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1042	update_now=1;	819	update_now = 1;
1043	} else if (action == UP_OBJ_FACE) {	820	else if (action == UP_OBJ_FACE)
1044	/* Nothing to do for that case */	821	/* Nothing to do for that case */ ;
1045	}
1046	else {	822	else
1047	LOG(llevError,"update_object called with invalid action: %d\n", action);	823	LOG (llevError, "update_object called with invalid action: %d\n", action);
1048	}
1049		824
1050	if (update_now) {	825	if (update_now)
		826	{
1051	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);	827	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);	828	update_position (op->map, op->x, op->y);
1053	}	829	}
1054		830
1055	if(op->more!=NULL)	831	if (op->more != NULL)
1056	update_object(op->more, action);	832	update_object (op->more, action);
1057	}	833	}
1058		834
		835	object::vector object::mortals;
		836	object::vector object::objects; // not yet used
		837	object *object::first;
		838
		839	void object::free_mortals ()
		840	{
		841	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
		842	if ((*i)->refcnt)
		843	++i; // further delay freeing
		844	else
		845	{
		846	delete *i;
		847	mortals.erase (i);
		848	}
		849	}
		850
		851	object::object ()
		852	{
		853	SET_FLAG (this, FLAG_REMOVED);
		854
		855	expmul = 1.0;
		856	face = blank_face;
		857	}
		858
		859	object::~object ()
		860	{
		861	free_key_values (this);
		862	}
		863
		864	void object::link ()
		865	{
		866	count = ++ob_count;
		867	uuid = gen_uuid ();
		868
		869	prev = 0;
		870	next = object::first;
		871
		872	if (object::first)
		873	object::first->prev = this;
		874
		875	object::first = this;
		876	}
		877
		878	void object::unlink ()
		879	{
		880	if (this == object::first)
		881	object::first = next;
		882
		883	/* Remove this object from the list of used objects */
		884	if (prev) prev->next = next;
		885	if (next) next->prev = prev;
		886
		887	prev = 0;
		888	next = 0;
		889	}
		890
		891	object *object::create ()
		892	{
		893	object *op = new object;
		894	op->link ();
		895	return op;
		896	}
1059		897
1060	/*	898	/*
1061	* free_object() frees everything allocated by an object, removes	899	* free_object() frees everything allocated by an object, removes
1062	* it from the list of used objects, and puts it on the list of	900	* 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.	901	* free objects. The IS_FREED() flag is set in the object.
1064	* The object must have been removed by remove_ob() first for	902	* The object must have been removed by remove_ob() first for
1065	* this function to succeed.	903	* this function to succeed.
1066	*	904	*
1067	* If free_inventory is set, free inventory as well. Else drop items in	905	* If destroy_inventory is set, free inventory as well. Else drop items in
1068	* inventory to the ground.	906	* inventory to the ground.
1069	*/	907	*/
		908	void object::destroy (bool destroy_inventory)
		909	{
		910	if (QUERY_FLAG (this, FLAG_FREED))
		911	return;
1070		912
1071	void free_object(object *ob) {	913	if (QUERY_FLAG (this, FLAG_FRIENDLY))
1072	free_object2(ob, 0);	914	remove_friendly_object (this);
1073	}
1074	void free_object2(object *ob, int free_inventory) {
1075	object *tmp,*op;
1076		915
1077	if (object_free_callback)
1078	object_free_callback (ob);
1079
1080	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	916	if (!QUERY_FLAG (this, FLAG_REMOVED))
1081	LOG(llevDebug,"Free object called with non removed object\n");	917	remove ();
1082	dump_object(ob);	918
1083	#ifdef MANY_CORES	919	SET_FLAG (this, FLAG_FREED);
1084	abort();	920
1085	#endif	921	if (more)
1086	}	922	{
1087	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	923	more->destroy (destroy_inventory);
1088	LOG(llevMonster,"Warning: tried to free friendly object.\n");	924	more = 0;
1089	remove_friendly_object(ob);	925	}
		926
		927	if (inv)
1090	}	928	{
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 -	929	/* Only if the space blocks everything do we not process -
1102	* if some form of movemnt is allowed, let objects	930	* if some form of movement is allowed, let objects
1103	* drop on that space.	931	* drop on that space.
1104	*/	932	*/
1105	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	933	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))	934	{
1107	{	935	object *op = inv;
1108	op=ob->inv;	936
1109	while(op!=NULL) {	937	while (op)
1110	tmp=op->below;	938	{
1111	remove_ob(op);	939	object *tmp = op->below;
1112	free_object2(op, free_inventory);	940	op->destroy (destroy_inventory);
1113	op=tmp;	941	op = tmp;
		942	}
		943	}
		944	else
		945	{ /* Put objects in inventory onto this space */
		946	object *op = inv;
		947
		948	while (op)
		949	{
		950	object *tmp = op->below;
		951
		952	op->remove ();
		953
		954	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
		955	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
		956	op->destroy ();
		957	else
		958	{
		959	op->x = x;
		960	op->y = y;
		961	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
		962	}
		963
		964	op = tmp;
		965	}
		966	}
1114	}	967	}
1115	}	968
1116	else { /* Put objects in inventory onto this space */	969	// hack to ensure that freed objects still have a valid map
1117	op=ob->inv;	970	{
1118	while(op!=NULL) {	971	static maptile *freed_map; // freed objects are moved here to avoid crashes
1119	tmp=op->below;	972
1120	remove_ob(op);	973	if (!freed_map)
1121	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||	974	{
1122	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))	975	freed_map = new maptile;
1123	free_object(op);	976
1124	else {	977	freed_map->name = "/internal/freed_objects_map";
1125	op->x=ob->x;	978	freed_map->width = 3;
1126	op->y=ob->y;	979	freed_map->height = 3;
1127	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */	980
1128	}	981	freed_map->allocate ();
1129	op=tmp;
1130	}
1131	}
1132	}	982	}
		983
		984	map = freed_map;
		985	x = 1;
		986	y = 1;
		987	}
		988
		989	// clear those pointers that likely might have circular references to us
		990	owner = 0;
		991	enemy = 0;
		992	attacked_by = 0;
		993
		994	// only relevant for players(?), but make sure of it anyways
		995	contr = 0;
		996
1133	/* Remove object from the active list */	997	/* Remove object from the active list */
1134	ob->speed = 0;	998	speed = 0;
1135	update_ob_speed(ob);	999	update_ob_speed (this);
1136		1000
1137	SET_FLAG(ob, FLAG_FREED);	1001	unlink ();
1138	ob->count = 0;
1139		1002
1140	/* Remove this object from the list of used objects */	1003	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	}	1004	}
1225		1005
1226	/*	1006	/*
1227	* sub_weight() recursively (outwards) subtracts a number from the	1007	* sub_weight() recursively (outwards) subtracts a number from the
1228	* weight of an object (and what is carried by it's environment(s)).	1008	* weight of an object (and what is carried by it's environment(s)).
1229	*/	1009	*/
1230		1010	void
1231	void sub_weight (object *op, signed long weight) {	1011	sub_weight (object *op, signed long weight)
		1012	{
1232	while (op != NULL) {	1013	while (op != NULL)
		1014	{
1233	if (op->type == CONTAINER) {	1015	if (op->type == CONTAINER)
1234	weight=(signed long)(weight*(100-op->stats.Str)/100);	1016	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1235	}	1017
1236	op->carrying-=weight;	1018	op->carrying -= weight;
1237	op = op->env;	1019	op = op->env;
1238	}	1020	}
1239	}	1021	}
1240		1022
1241	/* remove_ob(op):	1023	/* op->remove ():
1242	* This function removes the object op from the linked list of objects	1024	* 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	1025	* which it is currently tied to. When this function is done, the
1244	* object will have no environment. If the object previously had an	1026	* object will have no environment. If the object previously had an
1245	* environment, the x and y coordinates will be updated to	1027	* environment, the x and y coordinates will be updated to
1246	* the previous environment.	1028	* the previous environment.
1247	* Beware: This function is called from the editor as well!	1029	* Beware: This function is called from the editor as well!
1248	*/	1030	*/
1249		1031	void
1250	void remove_ob(object *op) {	1032	object::remove ()
		1033	{
1251	object *tmp,*last=NULL;	1034	object *tmp, *last = 0;
1252	object *otmp;	1035	object *otmp;
1253	tag_t tag;	1036
1254	int check_walk_off;	1037	int check_walk_off;
1255	mapstruct *m;
1256	sint16 x,y;
1257
1258		1038
1259	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1039	if (QUERY_FLAG (this, 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 (this, FLAG_REMOVED);
1279		1043
		1044	if (more)
		1045	more->remove ();
		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 (env)
1285	if(op->nrof)	1052	{
		1053	if (nrof)
1286	sub_weight(op->env, op->weight*op->nrof);	1054	sub_weight (env, weight * nrof);
1287	else	1055	else
1288	sub_weight(op->env, op->weight+op->carrying);	1056	sub_weight (env, weight + 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 (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 (above != NULL)
1299	op->above->below=op->below;	1066	above->below = below;
1300	else	1067	else
1301	op->env->inv=op->below;	1068	env->inv = below;
1302		1069
1303	if(op->below!=NULL)	1070	if (below != NULL)
1304	op->below->above=op->above;	1071	below->above = 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	x = env->x, y = env->y;
1311	op->ox=op->x,op->oy=op->y;	1078	map = env->map;
1312	op->map=op->env->map;	1079	above = 0, below = 0;
1313	op->above=NULL,op->below=NULL;	1080	env = 0;
1314	op->env=NULL;	1081	}
1315	return;	1082	else if (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;
1322	y = op->y;
1323	m = get_map_from_coord(op->map, &x, &y);
1324
1325	if (!m) {
1326	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);
1328	/* 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
1330	* screwed up and should be fixed.
1331	*/
1332	abort();
1333	}
1334	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",
1336	op->map->path, m->path, op->x, op->y, x, y);
1337	}
1338
1339	/* Re did the following section of code - it looks like it had	1084	/* Re did the following section of code - it looks like it had
1340	* lots of logic for things we no longer care about	1085	* lots of logic for things we no longer care about
1341	*/	1086	*/
1342		1087
1343	/* link the object above us */	1088	/* link the object above us */
1344	if (op->above)	1089	if (above)
1345	op->above->below=op->below;	1090	above->below = below;
1346	else	1091	else
1347	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */	1092	SET_MAP_TOP (map, x, y, below); /* we were top, set new top */
1348		1093
1349	/* Relink the object below us, if there is one */	1094	/* Relink the object below us, if there is one */
1350	if(op->below) {	1095	if (below)
1351	op->below->above=op->above;	1096	below->above = above;
1352	} else {	1097	else
		1098	{
1353	/* Nothing below, which means we need to relink map object for this space	1099	/* 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	1100	* use translated coordinates in case some oddness with map tiling is
1355	* evident	1101	* evident
1356	*/	1102	*/
1357	if(GET_MAP_OB(m,x,y)!=op) {	1103	if (GET_MAP_OB (map, x, y) != this)
1358	dump_object(op);	1104	{
		1105	char *dump = dump_object (this);
		1106	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);	1107	"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));	1108	free (dump);
1361	LOG(llevError,"%s\n",errmsg);	1109	dump = dump_object (GET_MAP_OB (map, x, y));
1362	}	1110	LOG (llevError, "%s\n", dump);
		1111	free (dump);
		1112	}
		1113
1363	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1114	SET_MAP_OB (map, x, y, above); /* goes on above it. */
1364	}	1115	}
1365	op->above=NULL;
1366	op->below=NULL;
1367		1116
		1117	above = 0;
		1118	below = 0;
		1119
1368	if (op->map->in_memory == MAP_SAVING)	1120	if (map->in_memory == MAP_SAVING)
1369	return;	1121	return;
1370		1122
1371	tag = op->count;
1372	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1123	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);
		1124
1373	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1125	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
		1126	{
1374	/* No point updating the players look faces if he is the object	1127	/* No point updating the players look faces if he is the object
1375	* being removed.	1128	* being removed.
1376	*/	1129	*/
1377		1130
1378	if(tmp->type==PLAYER && tmp!=op) {	1131	if (tmp->type == PLAYER && tmp != this)
		1132	{
1379	/* If a container that the player is currently using somehow gets	1133	/* If a container that the player is currently using somehow gets
1380	* removed (most likely destroyed), update the player view	1134	* removed (most likely destroyed), update the player view
1381	* appropriately.	1135	* appropriately.
1382	*/	1136	*/
1383	if (tmp->container==op) {	1137	if (tmp->container == this)
1384	CLEAR_FLAG(op, FLAG_APPLIED);	1138	{
1385	tmp->container=NULL;	1139	CLEAR_FLAG (this, FLAG_APPLIED);
1386	}	1140	tmp->container = 0;
		1141	}
		1142
1387	tmp->contr->socket.update_look=1;	1143	tmp->contr->socket.update_look = 1;
1388	}	1144	}
		1145
1389	/* See if player moving off should effect something */	1146	/* See if player moving off should effect something */
1390	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1147	if (check_walk_off
		1148	&& ((move_type & tmp->move_off)
1391	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1149	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1150	{
		1151	move_apply (tmp, this, 0);
1392		1152
1393	move_apply(tmp, op, NULL);	1153	if (destroyed ())
1394	if (was_destroyed (op, tag)) {	1154	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1395	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1155	}
1396	"leaving object\n", tmp->name, tmp->arch->name);
1397	}
1398	}
1399		1156
1400	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1157	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1401		1158
1402	if(tmp->above == tmp)	1159	if (tmp->above == tmp)
1403	tmp->above = NULL;	1160	tmp->above = 0;
1404	last=tmp;	1161
1405	}	1162	last = tmp;
		1163	}
		1164
1406	/* last == NULL of there are no objects on this space */	1165	/* last == NULL of there are no objects on this space */
1407	if (last==NULL) {	1166	if (!last)
		1167	{
1408	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1168	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1409	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1169	* 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	1170	* those out anyways, and if there are any flags set right now, they won't
1411	* be correct anyways.	1171	* be correct anyways.
1412	*/	1172	*/
1413	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);	1173	SET_MAP_FLAGS (map, x, y, P_NEED_UPDATE);
1414	update_position(op->map, op->x, op->y);	1174	update_position (map, x, y);
1415	}	1175	}
1416	else	1176	else
1417	update_object(last, UP_OBJ_REMOVE);	1177	update_object (last, UP_OBJ_REMOVE);
1418		1178
1419	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1179	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1420	update_all_los(op->map, op->x, op->y);	1180	update_all_los (map, x, y);
1421		1181	}
1422	}	1182	}
1423		1183
1424	/*	1184	/*
1425	* merge_ob(op,top):	1185	* merge_ob(op,top):
1426	*	1186	*
1427	* This function goes through all objects below and including top, and	1187	* This function goes through all objects below and including top, and
1428	* merges op to the first matching object.	1188	* merges op to the first matching object.
1429	* If top is NULL, it is calculated.	1189	* If top is NULL, it is calculated.
1430	* Returns pointer to object if it succeded in the merge, otherwise NULL	1190	* Returns pointer to object if it succeded in the merge, otherwise NULL
1431	*/	1191	*/
1432		1192	object *
1433	object *merge_ob(object *op, object *top) {	1193	merge_ob (object *op, object *top)
		1194	{
1434	if(!op->nrof)	1195	if (!op->nrof)
1435	return 0;	1196	return 0;
		1197
1436	if(top==NULL)	1198	if (top == NULL)
1437	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1199	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1200
1438	for(;top!=NULL;top=top->below) {	1201	for (; top != NULL; top = top->below)
		1202	{
1439	if(top==op)	1203	if (top == op)
1440	continue;	1204	continue;
1441	if (CAN_MERGE(op,top))	1205	if (CAN_MERGE (op, top))
1442	{	1206	{
1443	top->nrof+=op->nrof;	1207	top->nrof += op->nrof;
		1208
1444	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1209	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1445	op->weight = 0; /* Don't want any adjustements now */	1210	op->weight = 0; /* Don't want any adjustements now */
1446	remove_ob(op);	1211	op->destroy ();
1447	free_object(op);
1448	return top;	1212	return top;
1449	}	1213	}
1450	}	1214	}
		1215
1451	return NULL;	1216	return 0;
1452	}	1217	}
1453		1218
1454	/*	1219	/*
1455	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1220	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1456	* job preparing multi-part monsters	1221	* job preparing multi-part monsters
1457	*/	1222	*/
		1223	object *
1458	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1224	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1225	{
1459	object* tmp;	1226	object *tmp;
		1227
1460	if (op->head)	1228	if (op->head)
1461	op=op->head;	1229	op = op->head;
		1230
1462	for (tmp=op;tmp;tmp=tmp->more){	1231	for (tmp = op; tmp; tmp = tmp->more)
		1232	{
1463	tmp->x=x+tmp->arch->clone.x;	1233	tmp->x = x + tmp->arch->clone.x;
1464	tmp->y=y+tmp->arch->clone.y;	1234	tmp->y = y + tmp->arch->clone.y;
1465	}	1235	}
		1236
1466	return insert_ob_in_map (op, m, originator, flag);	1237	return insert_ob_in_map (op, m, originator, flag);
1467	}	1238	}
1468		1239
1469	/*	1240	/*
1470	* insert_ob_in_map (op, map, originator, flag):	1241	* insert_ob_in_map (op, map, originator, flag):
1471	* This function inserts the object in the two-way linked list	1242	* This function inserts the object in the two-way linked list
…		…
1485	* new object if 'op' was merged with other object	1256	* new object if 'op' was merged with other object
1486	* NULL if 'op' was destroyed	1257	* NULL if 'op' was destroyed
1487	* just 'op' otherwise	1258	* just 'op' otherwise
1488	*/	1259	*/
1489		1260
		1261	object *
1490	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1262	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1491	{	1263	{
1492	object *tmp, *top, *floor=NULL;	1264	object *tmp, *top, *floor = NULL;
1493	sint16 x,y;	1265	sint16 x, y;
1494		1266
1495	if (QUERY_FLAG (op, FLAG_FREED)) {	1267	if (QUERY_FLAG (op, FLAG_FREED))
		1268	{
1496	LOG (llevError, "Trying to insert freed object!\n");	1269	LOG (llevError, "Trying to insert freed object!\n");
1497	return NULL;	1270	return NULL;
		1271	}
		1272
		1273	if (m == NULL)
1498	}	1274	{
1499	if(m==NULL) {	1275	char *dump = dump_object (op);
1500	dump_object(op);
1501	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1276	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1502	return op;	1277	free (dump);
		1278	return op;
1503	}	1279	}
		1280
1504	if(out_of_map(m,op->x,op->y)) {	1281	if (out_of_map (m, op->x, op->y))
1505	dump_object(op);	1282	{
		1283	char *dump = dump_object (op);
1506	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1284	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1507	#ifdef MANY_CORES	1285	#ifdef MANY_CORES
1508	/* Better to catch this here, as otherwise the next use of this object	1286	/* 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	1287	* is likely to cause a crash. Better to find out where it is getting
1510	* improperly inserted.	1288	* improperly inserted.
1511	*/	1289	*/
1512	abort();	1290	abort ();
1513	#endif	1291	#endif
1514	return op;	1292	free (dump);
		1293	return op;
1515	}	1294	}
		1295
1516	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1296	if (!QUERY_FLAG (op, FLAG_REMOVED))
1517	dump_object(op);	1297	{
		1298	char *dump = dump_object (op);
1518	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1299	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1519	return op;	1300	free (dump);
		1301	return op;
1520	}	1302	}
		1303
1521	if(op->more!=NULL) {	1304	if (op->more != NULL)
		1305	{
1522	/* The part may be on a different map. */	1306	/* The part may be on a different map. */
1523		1307
1524	object *more = op->more;	1308	object *more = op->more;
1525		1309
1526	/* We really need the caller to normalize coordinates - if	1310	/* We really need the caller to normalize coordinates - if
1527	* we set the map, that doesn't work if the location is within	1311	* 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	1312	* a map and this is straddling an edge. So only if coordinate
1529	* is clear wrong do we normalize it.	1313	* is clear wrong do we normalize it.
1530	*/	1314	*/
1531	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1315	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);	1316	more->map = get_map_from_coord (m, &more->x, &more->y);
1536	} else if (!more->map) {	1317	else if (!more->map)
		1318	{
1537	/* For backwards compatibility - when not dealing with tiled maps,	1319	/* For backwards compatibility - when not dealing with tiled maps,
1538	* more->map should always point to the parent.	1320	* more->map should always point to the parent.
1539	*/	1321	*/
1540	more->map = m;	1322	more->map = m;
1541	}	1323	}
1542		1324
1543	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1325	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1326	{
1544	if ( ! op->head)	1327	if (!op->head)
1545	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1328	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1329
1546	return NULL;	1330	return NULL;
1547	}	1331	}
1548	}	1332	}
		1333
1549	CLEAR_FLAG(op,FLAG_REMOVED);	1334	CLEAR_FLAG (op, FLAG_REMOVED);
1550		1335
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	1336	/* 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	1337	* of areas of callers (eg, anything that uses find_free_spot would now
1557	* need extra work	1338	* need extra work
1558	*/	1339	*/
1559	op->map=get_map_from_coord(m, &op->x, &op->y);	1340	op->map = get_map_from_coord (m, &op->x, &op->y);
1560	x = op->x;	1341	x = op->x;
1561	y = op->y;	1342	y = op->y;
1562		1343
1563	/* this has to be done after we translate the coordinates.	1344	/* this has to be done after we translate the coordinates.
1564	*/	1345	*/
1565	if(op->nrof && !(flag & INS_NO_MERGE)) {	1346	if (op->nrof && !(flag & INS_NO_MERGE))
1566	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1347	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1567	if (CAN_MERGE(op,tmp)) {	1348	if (CAN_MERGE (op, tmp))
1568	op->nrof+=tmp->nrof;	1349	{
1569	remove_ob(tmp);	1350	op->nrof += tmp->nrof;
1570	free_object(tmp);	1351	tmp->destroy ();
1571	}	1352	}
1572	}
1573		1353
1574	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1354	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1575	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1355	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1356
1576	if (!QUERY_FLAG(op, FLAG_ALIVE))	1357	if (!QUERY_FLAG (op, FLAG_ALIVE))
1577	CLEAR_FLAG(op, FLAG_NO_STEAL);	1358	CLEAR_FLAG (op, FLAG_NO_STEAL);
1578		1359
1579	if (flag & INS_BELOW_ORIGINATOR) {	1360	if (flag & INS_BELOW_ORIGINATOR)
		1361	{
1580	if (originator->map != op->map || originator->x != op->x ||	1362	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1581	originator->y != op->y) {	1363	{
1582	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1364	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1583	abort();	1365	abort ();
1584	}	1366	}
		1367
1585	op->above = originator;	1368	op->above = originator;
1586	op->below = originator->below;	1369	op->below = originator->below;
1587	if (op->below) op->below->above = op;	1370
		1371	if (op->below)
		1372	op->below->above = op;
		1373	else
1588	else SET_MAP_OB(op->map, op->x, op->y, op);	1374	SET_MAP_OB (op->map, op->x, op->y, op);
		1375
1589	/* since *below* originator, no need to update top */	1376	/* since *below* originator, no need to update top */
1590	originator->below = op;	1377	originator->below = op;
1591	} else {	1378	}
		1379	else
		1380	{
1592	/* If there are other objects, then */	1381	/* If there are other objects, then */
1593	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1382	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1383	{
1594	object *last=NULL;	1384	object *last = NULL;
1595	/*	1385
		1386	/*
1596	* If there are multiple objects on this space, we do some trickier handling.	1387	* If there are multiple objects on this space, we do some trickier handling.
1597	* We've already dealt with merging if appropriate.	1388	* We've already dealt with merging if appropriate.
1598	* Generally, we want to put the new object on top. But if	1389	* Generally, we want to put the new object on top. But if
1599	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1390	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1600	* floor, we want to insert above that and no further.	1391	* floor, we want to insert above that and no further.
1601	* Also, if there are spell objects on this space, we stop processing	1392	* 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	1393	* 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	1394	* 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	1395	* when lots of spells are cast in one area. Currently, it is presumed
1605	* that flying non pickable objects are spell objects.	1396	* that flying non pickable objects are spell objects.
1606	*/	1397	*/
1607		1398
1608	while (top != NULL) {	1399	while (top != NULL)
1609	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||	1400	{
1610	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;	1401	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1611	if (QUERY_FLAG(top, FLAG_NO_PICK)	1402	floor = top;
1612	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))	1403
1613	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))	1404	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1614	{	1405	{
1615	/* We insert above top, so we want this object below this */	1406	/* We insert above top, so we want this object below this */
1616	top=top->below;	1407	top = top->below;
1617	break;	1408	break;
1618	}	1409	}
1619	last = top;	1410
1620	top = top->above;	1411	last = top;
1621	}	1412	top = top->above;
		1413	}
		1414
1622	/* Don't want top to be NULL, so set it to the last valid object */	1415	/* Don't want top to be NULL, so set it to the last valid object */
1623	top = last;	1416	top = last;
1624		1417
1625	/* We let update_position deal with figuring out what the space	1418	/* We let update_position deal with figuring out what the space
1626	* looks like instead of lots of conditions here.	1419	* looks like instead of lots of conditions here.
1627	* makes things faster, and effectively the same result.	1420	* makes things faster, and effectively the same result.
1628	*/	1421	*/
1629		1422
1630	/* Have object 'fall below' other objects that block view.	1423	/* Have object 'fall below' other objects that block view.
1631	* Unless those objects are exits, type 66	1424	* Unless those objects are exits, type 66
1632	* If INS_ON_TOP is used, don't do this processing	1425	* If INS_ON_TOP is used, don't do this processing
1633	* Need to find the object that in fact blocks view, otherwise	1426	* Need to find the object that in fact blocks view, otherwise
1634	* stacking is a bit odd.	1427	* stacking is a bit odd.
1635	*/	1428	*/
1636	if (!(flag & INS_ON_TOP) &&	1429	if (!(flag & INS_ON_TOP) &&
1637	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1430	(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)) {	1431	{
1639	for (last=top; last != floor; last=last->below)	1432	for (last = top; last != floor; last = last->below)
1640	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1433	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1434	break;
1641	/* Check to see if we found the object that blocks view,	1435	/* Check to see if we found the object that blocks view,
1642	* and make sure we have a below pointer for it so that	1436	* and make sure we have a below pointer for it so that
1643	* we can get inserted below this one, which requires we	1437	* we can get inserted below this one, which requires we
1644	* set top to the object below us.	1438	* set top to the object below us.
1645	*/	1439	*/
1646	if (last && last->below && last != floor) top=last->below;	1440	if (last && last->below && last != floor)
1647	}	1441	top = last->below;
1648	} /* If objects on this space */	1442	}
		1443	} /* If objects on this space */
		1444
1649	if (flag & INS_MAP_LOAD)	1445	if (flag & INS_MAP_LOAD)
1650	top = GET_MAP_TOP(op->map,op->x,op->y);	1446	top = GET_MAP_TOP (op->map, op->x, op->y);
		1447
1651	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1448	if (flag & INS_ABOVE_FLOOR_ONLY)
		1449	top = floor;
1652		1450
1653	/* Top is the object that our object (op) is going to get inserted above.	1451	/* Top is the object that our object (op) is going to get inserted above.
1654	*/	1452	*/
1655		1453
1656	/* First object on this space */	1454	/* First object on this space */
1657	if (!top) {	1455	if (!top)
		1456	{
1658	op->above = GET_MAP_OB(op->map, op->x, op->y);	1457	op->above = GET_MAP_OB (op->map, op->x, op->y);
1659	if (op->above) op->above->below = op;	1458
		1459	if (op->above)
		1460	op->above->below = op;
		1461
1660	op->below = NULL;	1462	op->below = NULL;
1661	SET_MAP_OB(op->map, op->x, op->y, op);	1463	SET_MAP_OB (op->map, op->x, op->y, op);
1662	} else { /* get inserted into the stack above top */	1464	}
		1465	else
		1466	{ /* get inserted into the stack above top */
1663	op->above = top->above;	1467	op->above = top->above;
1664	if (op->above) op->above->below = op;	1468
		1469	if (op->above)
		1470	op->above->below = op;
		1471
1665	op->below = top;	1472	op->below = top;
1666	top->above = op;	1473	top->above = op;
1667	}	1474	}
		1475
1668	if (op->above==NULL)	1476	if (op->above == NULL)
1669	SET_MAP_TOP(op->map,op->x, op->y, op);	1477	SET_MAP_TOP (op->map, op->x, op->y, op);
1670	} /* else not INS_BELOW_ORIGINATOR */	1478	} /* else not INS_BELOW_ORIGINATOR */
1671		1479
1672	if(op->type==PLAYER)	1480	if (op->type == PLAYER)
1673	op->contr->do_los=1;	1481	op->contr->do_los = 1;
1674		1482
1675	/* If we have a floor, we know the player, if any, will be above	1483	/* 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.	1484	* it, so save a few ticks and start from there.
1677	*/	1485	*/
1678	if (!(flag & INS_MAP_LOAD))	1486	if (!(flag & INS_MAP_LOAD))
1679	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1487	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1680	if (tmp->type == PLAYER)	1488	if (tmp->type == PLAYER)
1681	tmp->contr->socket.update_look=1;	1489	tmp->contr->socket.update_look = 1;
1682	}
1683		1490
1684	/* If this object glows, it may affect lighting conditions that are	1491	/* If this object glows, it may affect lighting conditions that are
1685	* visible to others on this map. But update_all_los is really	1492	* 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	1493	* 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	1494	* on the map will get recalculated. The players could very well
1688	* be far away from this change and not affected in any way -	1495	* be far away from this change and not affected in any way -
1689	* this should get redone to only look for players within range,	1496	* this should get redone to only look for players within range,
1690	* or just updating the P_NEED_UPDATE for spaces within this area	1497	* or just updating the P_NEED_UPDATE for spaces within this area
1691	* of effect may be sufficient.	1498	* of effect may be sufficient.
1692	*/	1499	*/
1693	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1500	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
1694	update_all_los(op->map, op->x, op->y);	1501	update_all_los (op->map, op->x, op->y);
1695		1502
1696
1697	/* updates flags (blocked, alive, no magic, etc) for this map space */	1503	/* updates flags (blocked, alive, no magic, etc) for this map space */
1698	update_object(op,UP_OBJ_INSERT);	1504	update_object (op, UP_OBJ_INSERT);
1699		1505
1700
1701	/* Don't know if moving this to the end will break anything. However,	1506	/* 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.	1507	* we want to have update_look set above before calling this.
1703	*	1508	*
1704	* check_move_on() must be after this because code called from	1509	* check_move_on() must be after this because code called from
1705	* check_move_on() depends on correct map flags (so functions like	1510	* check_move_on() depends on correct map flags (so functions like
1706	* blocked() and wall() work properly), and these flags are updated by	1511	* blocked() and wall() work properly), and these flags are updated by
1707	* update_object().	1512	* update_object().
1708	*/	1513	*/
1709		1514
1710	/* if this is not the head or flag has been passed, don't check walk on status */	1515	/* 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) {	1516	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1517	{
1713	if (check_move_on(op, originator))	1518	if (check_move_on (op, originator))
1714	return NULL;	1519	return NULL;
1715		1520
1716	/* If we are a multi part object, lets work our way through the check	1521	/* If we are a multi part object, lets work our way through the check
1717	* walk on's.	1522	* walk on's.
1718	*/	1523	*/
1719	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1524	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1720	if (check_move_on (tmp, originator))	1525	if (check_move_on (tmp, originator))
1721	return NULL;	1526	return NULL;
1722	}	1527	}
		1528
1723	return op;	1529	return op;
1724	}	1530	}
1725		1531
1726	/* this function inserts an object in the map, but if it	1532	/* 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.	1533	* 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.	1534	* op is the object to insert it under: supplies x and the map.
1729	*/	1535	*/
		1536	void
1730	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1537	replace_insert_ob_in_map (const char *arch_string, object *op)
		1538	{
1731	object *tmp;	1539	object *
1732	object *tmp1;	1540	tmp;
		1541	object *
		1542	tmp1;
1733		1543
1734	/* first search for itself and remove any old instances */	1544	/* first search for itself and remove any old instances */
1735		1545
1736	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1546	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1737	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1547	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1738	remove_ob(tmp);	1548	tmp->destroy ();
1739	free_object(tmp);
1740	}
1741	}
1742		1549
1743	tmp1=arch_to_object(find_archetype(arch_string));	1550	tmp1 = arch_to_object (archetype::find (arch_string));
1744		1551
1745		1552	tmp1->x = op->x;
1746	tmp1->x = op->x; tmp1->y = op->y;	1553	tmp1->y = op->y;
1747	insert_ob_in_map(tmp1,op->map,op,0);	1554	insert_ob_in_map (tmp1, op->map, op, 0);
1748	}	1555	}
1749		1556
1750	/*	1557	/*
1751	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1558	* 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	1559	* is returned contains nr objects, and the remaining parts contains
1753	* the rest (or is removed and freed if that number is 0).	1560	* the rest (or is removed and freed if that number is 0).
1754	* On failure, NULL is returned, and the reason put into the	1561	* On failure, NULL is returned, and the reason put into the
1755	* global static errmsg array.	1562	* global static errmsg array.
1756	*/	1563	*/
1757		1564
		1565	object *
1758	object *get_split_ob(object *orig_ob, uint32 nr) {	1566	get_split_ob (object *orig_ob, uint32 nr)
		1567	{
1759	object *newob;	1568	object *newob;
1760	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1569	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1761		1570
1762	if(orig_ob->nrof<nr) {	1571	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	}	1572	{
		1573	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
		1574	return NULL;
		1575	}
		1576
1767	newob = object_create_clone(orig_ob);	1577	newob = object_create_clone (orig_ob);
		1578
1768	if((orig_ob->nrof-=nr)<1) {	1579	if ((orig_ob->nrof -= nr) < 1)
1769	if ( ! is_removed)	1580	orig_ob->destroy (1);
1770	remove_ob(orig_ob);
1771	free_object2(orig_ob, 1);
1772	}
1773	else if ( ! is_removed) {	1581	else if (!is_removed)
		1582	{
1774	if(orig_ob->env!=NULL)	1583	if (orig_ob->env != NULL)
1775	sub_weight (orig_ob->env,orig_ob->weight*nr);	1584	sub_weight (orig_ob->env, orig_ob->weight * nr);
1776	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1585	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1586	{
1777	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1587	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");	1588	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1780	return NULL;	1589	return NULL;
1781	}	1590	}
1782	}	1591	}
		1592
1783	newob->nrof=nr;	1593	newob->nrof = nr;
1784		1594
1785	return newob;	1595	return newob;
1786	}	1596	}
1787		1597
1788	/*	1598	/*
1789	* decrease_ob_nr(object, number) decreases a specified number from	1599	* decrease_ob_nr(object, number) decreases a specified number from
1790	* the amount of an object. If the amount reaches 0, the object	1600	* the amount of an object. If the amount reaches 0, the object
1791	* is subsequently removed and freed.	1601	* is subsequently removed and freed.
1792	*	1602	*
1793	* Return value: 'op' if something is left, NULL if the amount reached 0	1603	* Return value: 'op' if something is left, NULL if the amount reached 0
1794	*/	1604	*/
1795		1605
		1606	object *
1796	object *decrease_ob_nr (object *op, uint32 i)	1607	decrease_ob_nr (object *op, uint32 i)
1797	{	1608	{
1798	object *tmp;	1609	object *tmp;
1799	player *pl;	1610	player *pl;
1800		1611
1801	if (i == 0) /* objects with op->nrof require this check */	1612	if (i == 0) /* objects with op->nrof require this check */
1802	return op;	1613	return op;
1803		1614
1804	if (i > op->nrof)	1615	if (i > op->nrof)
1805	i = op->nrof;	1616	i = op->nrof;
1806		1617
1807	if (QUERY_FLAG (op, FLAG_REMOVED))	1618	if (QUERY_FLAG (op, FLAG_REMOVED))
		1619	op->nrof -= i;
		1620	else if (op->env != NULL)
		1621	{
		1622	/* is this object in the players inventory, or sub container
		1623	* therein?
		1624	*/
		1625	tmp = is_player_inv (op->env);
		1626	/* nope. Is this a container the player has opened?
		1627	* If so, set tmp to that player.
		1628	* IMO, searching through all the players will mostly
		1629	* likely be quicker than following op->env to the map,
		1630	* and then searching the map for a player.
		1631	*/
		1632	if (!tmp)
		1633	{
		1634	for (pl = first_player; pl; pl = pl->next)
		1635	if (pl->ob->container == op->env)
		1636	break;
		1637	if (pl)
		1638	tmp = pl->ob;
		1639	else
		1640	tmp = NULL;
		1641	}
		1642
		1643	if (i < op->nrof)
		1644	{
		1645	sub_weight (op->env, op->weight * i);
		1646	op->nrof -= i;
		1647	if (tmp)
		1648	{
		1649	esrv_send_item (tmp, op);
		1650	}
		1651	}
		1652	else
		1653	{
		1654	op->remove ();
		1655	op->nrof = 0;
		1656	if (tmp)
		1657	{
		1658	esrv_del_item (tmp->contr, op->count);
		1659	}
		1660	}
1808	{	1661	}
		1662	else
		1663	{
		1664	object *above = op->above;
		1665
		1666	if (i < op->nrof)
1809	op->nrof -= i;	1667	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 {	1668	else
		1669	{
1837	remove_ob (op);	1670	op->remove ();
1838	op->nrof = 0;	1671	op->nrof = 0;
1839	if (tmp) {
1840	esrv_del_item(tmp->contr, op->count);
1841	}	1672	}
1842	}
1843	}
1844	else
1845	{
1846	object *above = op->above;
1847		1673
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 */	1674	/* Since we just removed op, op->above is null */
1855	for (tmp = above; tmp != NULL; tmp = tmp->above)	1675	for (tmp = above; tmp != NULL; tmp = tmp->above)
1856	if (tmp->type == PLAYER) {	1676	if (tmp->type == PLAYER)
		1677	{
1857	if (op->nrof)	1678	if (op->nrof)
1858	esrv_send_item(tmp, op);	1679	esrv_send_item (tmp, op);
1859	else	1680	else
1860	esrv_del_item(tmp->contr, op->count);	1681	esrv_del_item (tmp->contr, op->count);
1861	}	1682	}
1862	}	1683	}
1863		1684
1864	if (op->nrof) {	1685	if (op->nrof)
1865	return op;	1686	return op;
1866	} else {	1687	else
1867	free_object (op);	1688	{
		1689	op->destroy ();
1868	return NULL;	1690	return NULL;
1869	}	1691	}
1870	}	1692	}
1871		1693
1872	/*	1694	/*
1873	* add_weight(object, weight) adds the specified weight to an object,	1695	* add_weight(object, weight) adds the specified weight to an object,
1874	* and also updates how much the environment(s) is/are carrying.	1696	* and also updates how much the environment(s) is/are carrying.
1875	*/	1697	*/
1876		1698
		1699	void
1877	void add_weight (object *op, signed long weight) {	1700	add_weight (object *op, signed long weight)
		1701	{
1878	while (op!=NULL) {	1702	while (op != NULL)
		1703	{
1879	if (op->type == CONTAINER) {	1704	if (op->type == CONTAINER)
1880	weight=(signed long)(weight*(100-op->stats.Str)/100);	1705	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1881	}	1706
1882	op->carrying+=weight;	1707	op->carrying += weight;
1883	op=op->env;	1708	op = op->env;
1884	}	1709	}
1885	}	1710	}
1886		1711
		1712	object *
		1713	insert_ob_in_ob (object *op, object *where)
		1714	{
		1715	if (!where)
		1716	{
		1717	char *dump = dump_object (op);
		1718	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1719	free (dump);
		1720	return op;
		1721	}
		1722
		1723	if (where->head)
		1724	{
		1725	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1726	where = where->head;
		1727	}
		1728
		1729	return where->insert (op);
		1730	}
		1731
1887	/*	1732	/*
1888	* insert_ob_in_ob(op,environment):	1733	* env->insert (op)
1889	* This function inserts the object op in the linked list	1734	* This function inserts the object op in the linked list
1890	* inside the object environment.	1735	* inside the object environment.
1891	*	1736	*
1892	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1893	* the inventory at the last position or next to other objects of the same
1894	* type.
1895	* Frank: Now sorted by type, archetype and magic!
1896	*
1897	* The function returns now pointer to inserted item, and return value can	1737	* The function returns now pointer to inserted item, and return value can
1898	* be != op, if items are merged. -Tero	1738	* be != op, if items are merged. -Tero
1899	*/	1739	*/
1900		1740
1901	object *insert_ob_in_ob(object *op,object *where) {	1741	object *
		1742	object::insert (object *op)
		1743	{
1902	object *tmp, *otmp;	1744	object *tmp, *otmp;
1903		1745
1904	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1746	if (!QUERY_FLAG (op, FLAG_REMOVED))
1905	dump_object(op);	1747	op->remove ();
1906	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1748
1907	return op;
1908	}
1909	if(where==NULL) {
1910	dump_object(op);
1911	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1912	return op;
1913	}
1914	if (where->head) {
1915	LOG(llevDebug,
1916	"Warning: Tried to insert object wrong part of multipart object.\n");
1917	where = where->head;
1918	}
1919	if (op->more) {	1749	if (op->more)
		1750	{
1920	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1751	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1921	op->name, op->count);
1922	return op;	1752	return op;
1923	}	1753	}
		1754
1924	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1755	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1925	CLEAR_FLAG(op, FLAG_REMOVED);	1756	CLEAR_FLAG (op, FLAG_REMOVED);
1926	if(op->nrof) {	1757	if (op->nrof)
		1758	{
1927	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1759	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1928	if ( CAN_MERGE(tmp,op) ) {	1760	if (CAN_MERGE (tmp, op))
		1761	{
1929	/* return the original object and remove inserted object	1762	/* return the original object and remove inserted object
1930	(client needs the original object) */	1763	(client needs the original object) */
1931	tmp->nrof += op->nrof;	1764	tmp->nrof += op->nrof;
1932	/* Weight handling gets pretty funky. Since we are adding to	1765	/* Weight handling gets pretty funky. Since we are adding to
1933	* tmp->nrof, we need to increase the weight.	1766	* tmp->nrof, we need to increase the weight.
1934	*/	1767	*/
1935	add_weight (where, op->weight*op->nrof);	1768	add_weight (this, op->weight * op->nrof);
1936	SET_FLAG(op, FLAG_REMOVED);	1769	SET_FLAG (op, FLAG_REMOVED);
1937	free_object(op); /* free the inserted object */	1770	op->destroy (); /* free the inserted object */
1938	op = tmp;	1771	op = tmp;
1939	remove_ob (op); /* and fix old object's links */	1772	op->remove (); /* and fix old object's links */
1940	CLEAR_FLAG(op, FLAG_REMOVED);	1773	CLEAR_FLAG (op, FLAG_REMOVED);
1941	break;	1774	break;
1942	}	1775	}
1943		1776
1944	/* I assume combined objects have no inventory	1777	/* I assume combined objects have no inventory
1945	* We add the weight - this object could have just been removed	1778	* We add the weight - this object could have just been removed
1946	* (if it was possible to merge). calling remove_ob will subtract	1779	* (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	1780	* the weight, so we need to add it in again, since we actually do
1948	* the linking below	1781	* the linking below
1949	*/	1782	*/
1950	add_weight (where, op->weight*op->nrof);	1783	add_weight (this, op->weight * op->nrof);
		1784	}
1951	} else	1785	else
1952	add_weight (where, (op->weight+op->carrying));	1786	add_weight (this, (op->weight + op->carrying));
1953		1787
1954	otmp=is_player_inv(where);	1788	otmp = is_player_inv (this);
1955	if (otmp&&otmp->contr!=NULL) {	1789	if (otmp && otmp->contr)
1956	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1790	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1957	fix_player(otmp);	1791	fix_player (otmp);
1958	}
1959		1792
1960	op->map=NULL;	1793	op->map = NULL;
1961	op->env=where;	1794	op->env = this;
1962	op->above=NULL;	1795	op->above = NULL;
1963	op->below=NULL;	1796	op->below = NULL;
1964	op->x=0,op->y=0;	1797	op->x = 0, op->y = 0;
1965	op->ox=0,op->oy=0;
1966		1798
1967	/* reset the light list and los of the players on the map */	1799	/* reset the light list and los of the players on the map */
1968	if((op->glow_radius!=0)&&where->map)	1800	if ((op->glow_radius != 0) && map)
1969	{	1801	{
1970	#ifdef DEBUG_LIGHTS	1802	#ifdef DEBUG_LIGHTS
1971	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1803	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1972	op->name);
1973	#endif /* DEBUG_LIGHTS */	1804	#endif /* DEBUG_LIGHTS */
1974	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1805	if (MAP_DARKNESS (map))
		1806	update_all_los (map, x, y);
1975	}	1807	}
1976		1808
1977	/* Client has no idea of ordering so lets not bother ordering it here.	1809	/* Client has no idea of ordering so lets not bother ordering it here.
1978	* It sure simplifies this function...	1810	* It sure simplifies this function...
1979	*/	1811	*/
1980	if (where->inv==NULL)	1812	if (!inv)
1981	where->inv=op;	1813	inv = op;
1982	else {	1814	else
		1815	{
1983	op->below = where->inv;	1816	op->below = inv;
1984	op->below->above = op;	1817	op->below->above = op;
1985	where->inv = op;	1818	inv = op;
1986	}	1819	}
		1820
1987	return op;	1821	return op;
1988	}	1822	}
1989		1823
1990	/*	1824	/*
1991	* Checks if any objects has a move_type that matches objects	1825	* 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	1840	* 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	1841	* object being inserted. insert_ob_in_map may not put new objects
2008	* on top.	1842	* on top.
2009	*/	1843	*/
2010		1844
		1845	int
2011	int check_move_on (object *op, object *originator)	1846	check_move_on (object *op, object *originator)
2012	{	1847	{
2013	object *tmp;	1848	object *tmp;
2014	tag_t tag;
2015	mapstruct *m=op->map;	1849	maptile *m = op->map;
2016	int x=op->x, y=op->y;	1850	int x = op->x, y = op->y;
		1851
2017	MoveType move_on, move_slow, move_block;	1852	MoveType move_on, move_slow, move_block;
2018		1853
2019	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1854	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;	1855	return 0;
		1856
		1857	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1858	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		1859	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		1860
		1861	/* if nothing on this space will slow op down or be applied,
		1862	* no need to do checking below. have to make sure move_type
		1863	* is set, as lots of objects don't have it set - we treat that
		1864	* as walking.
		1865	*/
		1866	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		1867	return 0;
		1868
		1869	/* This is basically inverse logic of that below - basically,
		1870	* if the object can avoid the move on or slow move, they do so,
		1871	* but can't do it if the alternate movement they are using is
		1872	* blocked. Logic on this seems confusing, but does seem correct.
		1873	*/
		1874	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		1875	return 0;
		1876
		1877	/* The objects have to be checked from top to bottom.
		1878	* Hence, we first go to the top:
		1879	*/
		1880
		1881	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
		1882	{
		1883	/* Trim the search when we find the first other spell effect
		1884	* this helps performance so that if a space has 50 spell objects,
		1885	* we don't need to check all of them.
		1886	*/
		1887	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1888	break;
		1889	}
		1890
		1891	for (; tmp; tmp = tmp->below)
		1892	{
		1893	if (tmp == op)
		1894	continue; /* Can't apply yourself */
		1895
		1896	/* Check to see if one of the movement types should be slowed down.
		1897	* Second check makes sure that the movement types not being slowed
		1898	* (~slow_move) is not blocked on this space - just because the
		1899	* space doesn't slow down swimming (for example), if you can't actually
		1900	* swim on that space, can't use it to avoid the penalty.
		1901	*/
		1902	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1903	{
		1904	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		1905	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1906	{
		1907
		1908	float
		1909	diff = tmp->move_slow_penalty * FABS (op->speed);
		1910
		1911	if (op->type == PLAYER)
		1912	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		1913	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		1914	diff /= 4.0;
		1915
		1916	op->speed_left -= diff;
		1917	}
		1918	}
		1919
		1920	/* Basically same logic as above, except now for actual apply. */
		1921	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		1922	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		1923	{
		1924	move_apply (tmp, op, originator);
		1925
		1926	if (op->destroyed ())
		1927	return 1;
		1928
		1929	/* what the person/creature stepped onto has moved the object
		1930	* someplace new. Don't process any further - if we did,
		1931	* have a feeling strange problems would result.
		1932	*/
		1933	if (op->map != m || op->x != x || op->y != y)
		1934	return 0;
		1935	}
		1936	}
		1937
		1938	return 0;
2100	}	1939	}
2101		1940
2102	/*	1941	/*
2103	* present_arch(arch, map, x, y) searches for any objects with	1942	* present_arch(arch, map, x, y) searches for any objects with
2104	* a matching archetype at the given map and coordinates.	1943	* a matching archetype at the given map and coordinates.
2105	* The first matching object is returned, or NULL if none.	1944	* The first matching object is returned, or NULL if none.
2106	*/	1945	*/
2107		1946
		1947	object *
2108	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1948	present_arch (const archetype *at, maptile *m, int x, int y)
		1949	{
2109	object *tmp;	1950	object *
		1951	tmp;
		1952
2110	if(m==NULL || out_of_map(m,x,y)) {	1953	if (m == NULL || out_of_map (m, x, y))
		1954	{
2111	LOG(llevError,"Present_arch called outside map.\n");	1955	LOG (llevError, "Present_arch called outside map.\n");
2112	return NULL;	1956	return NULL;
2113	}	1957	}
2114	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1958	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2115	if(tmp->arch == at)	1959	if (tmp->arch == at)
2116	return tmp;	1960	return tmp;
2117	return NULL;	1961	return NULL;
2118	}	1962	}
2119		1963
2120	/*	1964	/*
2121	* present(type, map, x, y) searches for any objects with	1965	* present(type, map, x, y) searches for any objects with
2122	* a matching type variable at the given map and coordinates.	1966	* a matching type variable at the given map and coordinates.
2123	* The first matching object is returned, or NULL if none.	1967	* The first matching object is returned, or NULL if none.
2124	*/	1968	*/
2125		1969
		1970	object *
2126	object *present(unsigned char type,mapstruct *m, int x,int y) {	1971	present (unsigned char type, maptile *m, int x, int y)
		1972	{
2127	object *tmp;	1973	object *
		1974	tmp;
		1975
2128	if(out_of_map(m,x,y)) {	1976	if (out_of_map (m, x, y))
		1977	{
2129	LOG(llevError,"Present called outside map.\n");	1978	LOG (llevError, "Present called outside map.\n");
2130	return NULL;	1979	return NULL;
2131	}	1980	}
2132	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1981	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2133	if(tmp->type==type)	1982	if (tmp->type == type)
2134	return tmp;	1983	return tmp;
2135	return NULL;	1984	return NULL;
2136	}	1985	}
2137		1986
2138	/*	1987	/*
2139	* present_in_ob(type, object) searches for any objects with	1988	* present_in_ob(type, object) searches for any objects with
2140	* a matching type variable in the inventory of the given object.	1989	* a matching type variable in the inventory of the given object.
2141	* The first matching object is returned, or NULL if none.	1990	* The first matching object is returned, or NULL if none.
2142	*/	1991	*/
2143		1992
		1993	object *
2144	object *present_in_ob(unsigned char type, const object *op) {	1994	present_in_ob (unsigned char type, const object *op)
		1995	{
2145	object *tmp;	1996	object *
		1997	tmp;
		1998
2146	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1999	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2147	if(tmp->type==type)	2000	if (tmp->type == type)
2148	return tmp;	2001	return tmp;
2149	return NULL;	2002	return NULL;
2150	}	2003	}
2151		2004
2152	/*	2005	/*
…		…
2162	* the object name, not the archetype name. this is so that the	2015	* 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	2016	* spell code can use one object type (force), but change it's name
2164	* to be unique.	2017	* to be unique.
2165	*/	2018	*/
2166		2019
		2020	object *
2167	object *present_in_ob_by_name(int type, const char *str, const object *op) {	2021	present_in_ob_by_name (int type, const char *str, const object *op)
		2022	{
2168	object *tmp;	2023	object *
		2024	tmp;
2169		2025
2170	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	2026	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2027	{
2171	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	2028	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2172	return tmp;	2029	return tmp;
2173	}	2030	}
2174	return NULL;	2031	return NULL;
2175	}	2032	}
2176		2033
2177	/*	2034	/*
2178	* present_arch_in_ob(archetype, object) searches for any objects with	2035	* present_arch_in_ob(archetype, object) searches for any objects with
2179	* a matching archetype in the inventory of the given object.	2036	* a matching archetype in the inventory of the given object.
2180	* The first matching object is returned, or NULL if none.	2037	* The first matching object is returned, or NULL if none.
2181	*/	2038	*/
2182		2039
		2040	object *
2183	object *present_arch_in_ob(const archetype *at, const object *op) {	2041	present_arch_in_ob (const archetype *at, const object *op)
		2042	{
2184	object *tmp;	2043	object *
		2044	tmp;
		2045
2185	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2046	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2186	if( tmp->arch == at)	2047	if (tmp->arch == at)
2187	return tmp;	2048	return tmp;
2188	return NULL;	2049	return NULL;
2189	}	2050	}
2190		2051
2191	/*	2052	/*
2192	* activate recursively a flag on an object inventory	2053	* activate recursively a flag on an object inventory
2193	*/	2054	*/
		2055	void
2194	void flag_inv(object*op, int flag){	2056	flag_inv (object *op, int flag)
		2057	{
2195	object *tmp;	2058	object *
		2059	tmp;
		2060
2196	if(op->inv)	2061	if (op->inv)
2197	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2062	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2063	{
2198	SET_FLAG(tmp, flag);	2064	SET_FLAG (tmp, flag);
2199	flag_inv(tmp,flag);	2065	flag_inv (tmp, flag);
2200	}	2066	}
2201	}/*	2067	} /*
2202	* desactivate recursively a flag on an object inventory	2068	* desactivate recursively a flag on an object inventory
2203	*/	2069	*/
		2070	void
2204	void unflag_inv(object*op, int flag){	2071	unflag_inv (object *op, int flag)
		2072	{
2205	object *tmp;	2073	object *
		2074	tmp;
		2075
2206	if(op->inv)	2076	if (op->inv)
2207	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2077	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2078	{
2208	CLEAR_FLAG(tmp, flag);	2079	CLEAR_FLAG (tmp, flag);
2209	unflag_inv(tmp,flag);	2080	unflag_inv (tmp, flag);
2210	}	2081	}
2211	}	2082	}
2212		2083
2213	/*	2084	/*
2214	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	2085	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2215	* all it's inventory (recursively).	2086	* all it's inventory (recursively).
2216	* If checksums are used, a player will get set_cheat called for	2087	* 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.	2088	* him/her-self and all object carried by a call to this function.
2218	*/	2089	*/
2219		2090
		2091	void
2220	void set_cheat(object *op) {	2092	set_cheat (object *op)
		2093	{
2221	SET_FLAG(op, FLAG_WAS_WIZ);	2094	SET_FLAG (op, FLAG_WAS_WIZ);
2222	flag_inv(op, FLAG_WAS_WIZ);	2095	flag_inv (op, FLAG_WAS_WIZ);
2223	}	2096	}
2224		2097
2225	/*	2098	/*
2226	* find_free_spot(object, map, x, y, start, stop) will search for	2099	* 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	2100	* 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	2115	* 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	2116	* the archetype because that isn't correct if the monster has been
2244	* customized, changed states, etc.	2117	* customized, changed states, etc.
2245	*/	2118	*/
2246		2119
		2120	int
2247	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2121	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2122	{
		2123	int
		2124	i,
2248	int i,index=0, flag;	2125	index = 0, flag;
		2126	static int
2249	static int altern[SIZEOFFREE];	2127	altern[SIZEOFFREE];
2250		2128
2251	for(i=start;i<stop;i++) {	2129	for (i = start; i < stop; i++)
		2130	{
2252	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2131	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2253	if(!flag)	2132	if (!flag)
2254	altern[index++]=i;	2133	altern[index++] = i;
2255		2134
2256	/* Basically, if we find a wall on a space, we cut down the search size.	2135	/* 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.	2136	* 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 -	2137	* 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	2138	* 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	2139	* spaces in all the other directions, this will reduce the search space
2261	* to only the spaces immediately surrounding the target area, and	2140	* to only the spaces immediately surrounding the target area, and
2262	* won't look 2 spaces south of the target space.	2141	* won't look 2 spaces south of the target space.
2263	*/	2142	*/
2264	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2143	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)
2265	stop=maxfree[i];	2144	stop = maxfree[i];
2266	}	2145	}
2267	if(!index) return -1;	2146	if (!index)
		2147	return -1;
2268	return altern[RANDOM()%index];	2148	return altern[RANDOM () % index];
2269	}	2149	}
2270		2150
2271	/*	2151	/*
2272	* find_first_free_spot(archetype, mapstruct, x, y) works like	2152	* find_first_free_spot(archetype, maptile, x, y) works like
2273	* find_free_spot(), but it will search max number of squares.	2153	* find_free_spot(), but it will search max number of squares.
2274	* But it will return the first available spot, not a random choice.	2154	* 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.	2155	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2276	*/	2156	*/
2277		2157
		2158	int
2278	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2159	find_first_free_spot (const object *ob, maptile *m, int x, int y)
		2160	{
		2161	int
2279	int i;	2162	i;
		2163
2280	for(i=0;i<SIZEOFFREE;i++) {	2164	for (i = 0; i < SIZEOFFREE; i++)
		2165	{
2281	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2166	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2282	return i;	2167	return i;
2283	}	2168	}
2284	return -1;	2169	return -1;
2285	}	2170	}
2286		2171
2287	/*	2172	/*
2288	* The function permute(arr, begin, end) randomly reorders the array	2173	* The function permute(arr, begin, end) randomly reorders the array
2289	* arr[begin..end-1].	2174	* arr[begin..end-1].
2290	*/	2175	*/
		2176	static void
2291	static void permute(int *arr, int begin, int end)	2177	permute (int *arr, int begin, int end)
2292	{	2178	{
2293	int i, j, tmp, len;	2179	int
		2180	i,
		2181	j,
		2182	tmp,
		2183	len;
2294		2184
2295	len = end-begin;	2185	len = end - begin;
2296	for(i = begin; i < end; i++)	2186	for (i = begin; i < end; i++)
2297	{	2187	{
2298	j = begin+RANDOM()%len;	2188	j = begin + RANDOM () % len;
2299		2189
2300	tmp = arr[i];	2190	tmp = arr[i];
2301	arr[i] = arr[j];	2191	arr[i] = arr[j];
2302	arr[j] = tmp;	2192	arr[j] = tmp;
2303	}	2193	}
2304	}	2194	}
2305		2195
2306	/* new function to make monster searching more efficient, and effective!	2196	/* new function to make monster searching more efficient, and effective!
2307	* This basically returns a randomized array (in the passed pointer) of	2197	* 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	2198	* 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	2199	* 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	2200	* 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.	2201	* the 3x3 area will be searched, just not in a predictable order.
2312	*/	2202	*/
		2203	void
2313	void get_search_arr(int *search_arr)	2204	get_search_arr (int *search_arr)
2314	{	2205	{
		2206	int
2315	int i;	2207	i;
2316		2208
2317	for(i = 0; i < SIZEOFFREE; i++)	2209	for (i = 0; i < SIZEOFFREE; i++)
2318	{	2210	{
2319	search_arr[i] = i;	2211	search_arr[i] = i;
2320	}	2212	}
2321		2213
2322	permute(search_arr, 1, SIZEOFFREE1+1);	2214	permute (search_arr, 1, SIZEOFFREE1 + 1);
2323	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2215	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2324	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2216	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2325	}	2217	}
2326		2218
2327	/*	2219	/*
2328	* find_dir(map, x, y, exclude) will search some close squares in the	2220	* find_dir(map, x, y, exclude) will search some close squares in the
2329	* given map at the given coordinates for live objects.	2221	* given map at the given coordinates for live objects.
…		…
2335	* is actually want is going to try and move there. We need this info	2227	* 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	2228	* because we have to know what movement the thing looking to move
2337	* there is capable of.	2229	* there is capable of.
2338	*/	2230	*/
2339		2231
		2232	int
2340	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2233	find_dir (maptile *m, int x, int y, object *exclude)
		2234	{
		2235	int
		2236	i,
2341	int i,max=SIZEOFFREE, mflags;	2237	max = SIZEOFFREE, mflags;
		2238
2342	sint16 nx, ny;	2239	sint16 nx, ny;
2343	object *tmp;	2240	object *
2344	mapstruct *mp;	2241	tmp;
		2242	maptile *
		2243	mp;
		2244
2345	MoveType blocked, move_type;	2245	MoveType blocked, move_type;
2346		2246
2347	if (exclude && exclude->head) {	2247	if (exclude && exclude->head)
		2248	{
2348	exclude = exclude->head;	2249	exclude = exclude->head;
2349	move_type = exclude->move_type;	2250	move_type = exclude->move_type;
2350	} else {	2251	}
		2252	else
		2253	{
2351	/* If we don't have anything, presume it can use all movement types. */	2254	/* If we don't have anything, presume it can use all movement types. */
2352	move_type=MOVE_ALL;	2255	move_type = MOVE_ALL;
		2256	}
		2257
		2258	for (i = 1; i < max; i++)
2353	}	2259	{
2354		2260	mp = m;
2355	for(i=1;i<max;i++) {
2356	mp = m;
2357	nx = x + freearr_x[i];	2261	nx = x + freearr_x[i];
2358	ny = y + freearr_y[i];	2262	ny = y + freearr_y[i];
2359		2263
2360	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2264	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
2361	if (mflags & P_OUT_OF_MAP) {	2265	if (mflags & P_OUT_OF_MAP)
		2266	{
2362	max = maxfree[i];	2267	max = maxfree[i];
2363	} else {	2268	}
		2269	else
		2270	{
2364	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2271	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
2365		2272
2366	if ((move_type & blocked) == move_type) {	2273	if ((move_type & blocked) == move_type)
2367	max=maxfree[i];	2274	{
		2275	max = maxfree[i];
		2276	}
2368	} else if (mflags & P_IS_ALIVE) {	2277	else if (mflags & P_IS_ALIVE)
		2278	{
2369	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2279	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2370	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2280	{
2371	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2281	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2372	break;	2282	{
2373	}	2283	break;
2374	}	2284	}
2375	if(tmp) {	2285	}
2376	return freedir[i];	2286	if (tmp)
2377	}	2287	{
		2288	return freedir[i];
		2289	}
		2290	}
		2291	}
2378	}	2292	}
2379	}
2380	}
2381	return 0;	2293	return 0;
2382	}	2294	}
2383		2295
2384	/*	2296	/*
2385	* distance(object 1, object 2) will return the square of the	2297	* distance(object 1, object 2) will return the square of the
2386	* distance between the two given objects.	2298	* distance between the two given objects.
2387	*/	2299	*/
2388		2300
		2301	int
2389	int distance(const object *ob1, const object *ob2) {	2302	distance (const object *ob1, const object *ob2)
		2303	{
2390	int i;	2304	int
2391	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2305	i;
2392	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2306
		2307	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2393	return i;	2308	return i;
2394	}	2309	}
2395		2310
2396	/*	2311	/*
2397	* find_dir_2(delta-x,delta-y) will return a direction in which	2312	* 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	2313	* an object which has subtracted the x and y coordinates of another
2399	* object, needs to travel toward it.	2314	* object, needs to travel toward it.
2400	*/	2315	*/
2401		2316
		2317	int
2402	int find_dir_2(int x, int y) {	2318	find_dir_2 (int x, int y)
		2319	{
2403	int q;	2320	int
		2321	q;
2404		2322
2405	if(y)	2323	if (y)
2406	q=x*100/y;	2324	q = x * 100 / y;
2407	else if (x)	2325	else if (x)
2408	q= -300*x;	2326	q = -300 * x;
2409	else	2327	else
2410	return 0;	2328	return 0;
2411		2329
2412	if(y>0) {	2330	if (y > 0)
		2331	{
2413	if(q < -242)	2332	if (q < -242)
2414	return 3 ;	2333	return 3;
2415	if (q < -41)	2334	if (q < -41)
2416	return 2 ;	2335	return 2;
2417	if (q < 41)	2336	if (q < 41)
2418	return 1 ;	2337	return 1;
2419	if (q < 242)	2338	if (q < 242)
2420	return 8 ;	2339	return 8;
2421	return 7 ;	2340	return 7;
2422	}	2341	}
2423		2342
2424	if (q < -242)	2343	if (q < -242)
2425	return 7 ;	2344	return 7;
2426	if (q < -41)	2345	if (q < -41)
2427	return 6 ;	2346	return 6;
2428	if (q < 41)	2347	if (q < 41)
2429	return 5 ;	2348	return 5;
2430	if (q < 242)	2349	if (q < 242)
2431	return 4 ;	2350	return 4;
2432		2351
2433	return 3 ;	2352	return 3;
2434	}	2353	}
2435		2354
2436	/*	2355	/*
2437	* absdir(int): Returns a number between 1 and 8, which represent	2356	* absdir(int): Returns a number between 1 and 8, which represent
2438	* the "absolute" direction of a number (it actually takes care of	2357	* the "absolute" direction of a number (it actually takes care of
2439	* "overflow" in previous calculations of a direction).	2358	* "overflow" in previous calculations of a direction).
2440	*/	2359	*/
2441		2360
		2361	int
2442	int absdir(int d) {	2362	absdir (int d)
2443	while(d<1) d+=8;	2363	{
2444	while(d>8) d-=8;	2364	while (d < 1)
		2365	d += 8;
		2366	while (d > 8)
		2367	d -= 8;
2445	return d;	2368	return d;
2446	}	2369	}
2447		2370
2448	/*	2371	/*
2449	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2372	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2450	* between two directions (which are expected to be absolute (see absdir())	2373	* between two directions (which are expected to be absolute (see absdir())
2451	*/	2374	*/
2452		2375
		2376	int
2453	int dirdiff(int dir1, int dir2) {	2377	dirdiff (int dir1, int dir2)
		2378	{
2454	int d;	2379	int
		2380	d;
		2381
2455	d = abs(dir1 - dir2);	2382	d = abs (dir1 - dir2);
2456	if(d>4)	2383	if (d > 4)
2457	d = 8 - d;	2384	d = 8 - d;
2458	return d;	2385	return d;
2459	}	2386	}
2460		2387
2461	/* peterm:	2388	/* peterm:
…		…
2466	* direction 4, 14, or 16 to get back to where we are.	2393	* 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	2394	* Moved from spell_util.c to object.c with the other related direction
2468	* functions.	2395	* functions.
2469	*/	2396	*/
2470		2397
		2398	int
2471	int reduction_dir[SIZEOFFREE][3] = {	2399	reduction_dir[SIZEOFFREE][3] = {
2472	{0,0,0}, /* 0 */	2400	{0, 0, 0}, /* 0 */
2473	{0,0,0}, /* 1 */	2401	{0, 0, 0}, /* 1 */
2474	{0,0,0}, /* 2 */	2402	{0, 0, 0}, /* 2 */
2475	{0,0,0}, /* 3 */	2403	{0, 0, 0}, /* 3 */
2476	{0,0,0}, /* 4 */	2404	{0, 0, 0}, /* 4 */
2477	{0,0,0}, /* 5 */	2405	{0, 0, 0}, /* 5 */
2478	{0,0,0}, /* 6 */	2406	{0, 0, 0}, /* 6 */
2479	{0,0,0}, /* 7 */	2407	{0, 0, 0}, /* 7 */
2480	{0,0,0}, /* 8 */	2408	{0, 0, 0}, /* 8 */
2481	{8,1,2}, /* 9 */	2409	{8, 1, 2}, /* 9 */
2482	{1,2,-1}, /* 10 */	2410	{1, 2, -1}, /* 10 */
2483	{2,10,12}, /* 11 */	2411	{2, 10, 12}, /* 11 */
2484	{2,3,-1}, /* 12 */	2412	{2, 3, -1}, /* 12 */
2485	{2,3,4}, /* 13 */	2413	{2, 3, 4}, /* 13 */
2486	{3,4,-1}, /* 14 */	2414	{3, 4, -1}, /* 14 */
2487	{4,14,16}, /* 15 */	2415	{4, 14, 16}, /* 15 */
2488	{5,4,-1}, /* 16 */	2416	{5, 4, -1}, /* 16 */
2489	{4,5,6}, /* 17 */	2417	{4, 5, 6}, /* 17 */
2490	{6,5,-1}, /* 18 */	2418	{6, 5, -1}, /* 18 */
2491	{6,20,18}, /* 19 */	2419	{6, 20, 18}, /* 19 */
2492	{7,6,-1}, /* 20 */	2420	{7, 6, -1}, /* 20 */
2493	{6,7,8}, /* 21 */	2421	{6, 7, 8}, /* 21 */
2494	{7,8,-1}, /* 22 */	2422	{7, 8, -1}, /* 22 */
2495	{8,22,24}, /* 23 */	2423	{8, 22, 24}, /* 23 */
2496	{8,1,-1}, /* 24 */	2424	{8, 1, -1}, /* 24 */
2497	{24,9,10}, /* 25 */	2425	{24, 9, 10}, /* 25 */
2498	{9,10,-1}, /* 26 */	2426	{9, 10, -1}, /* 26 */
2499	{10,11,-1}, /* 27 */	2427	{10, 11, -1}, /* 27 */
2500	{27,11,29}, /* 28 */	2428	{27, 11, 29}, /* 28 */
2501	{11,12,-1}, /* 29 */	2429	{11, 12, -1}, /* 29 */
2502	{12,13,-1}, /* 30 */	2430	{12, 13, -1}, /* 30 */
2503	{12,13,14}, /* 31 */	2431	{12, 13, 14}, /* 31 */
2504	{13,14,-1}, /* 32 */	2432	{13, 14, -1}, /* 32 */
2505	{14,15,-1}, /* 33 */	2433	{14, 15, -1}, /* 33 */
2506	{33,15,35}, /* 34 */	2434	{33, 15, 35}, /* 34 */
2507	{16,15,-1}, /* 35 */	2435	{16, 15, -1}, /* 35 */
2508	{17,16,-1}, /* 36 */	2436	{17, 16, -1}, /* 36 */
2509	{18,17,16}, /* 37 */	2437	{18, 17, 16}, /* 37 */
2510	{18,17,-1}, /* 38 */	2438	{18, 17, -1}, /* 38 */
2511	{18,19,-1}, /* 39 */	2439	{18, 19, -1}, /* 39 */
2512	{41,19,39}, /* 40 */	2440	{41, 19, 39}, /* 40 */
2513	{19,20,-1}, /* 41 */	2441	{19, 20, -1}, /* 41 */
2514	{20,21,-1}, /* 42 */	2442	{20, 21, -1}, /* 42 */
2515	{20,21,22}, /* 43 */	2443	{20, 21, 22}, /* 43 */
2516	{21,22,-1}, /* 44 */	2444	{21, 22, -1}, /* 44 */
2517	{23,22,-1}, /* 45 */	2445	{23, 22, -1}, /* 45 */
2518	{45,47,23}, /* 46 */	2446	{45, 47, 23}, /* 46 */
2519	{23,24,-1}, /* 47 */	2447	{23, 24, -1}, /* 47 */
2520	{24,9,-1}}; /* 48 */	2448	{24, 9, -1}
		2449	}; /* 48 */
2521		2450
2522	/* Recursive routine to step back and see if we can	2451	/* Recursive routine to step back and see if we can
2523	* find a path to that monster that we found. If not,	2452	* find a path to that monster that we found. If not,
2524	* we don't bother going toward it. Returns 1 if we	2453	* we don't bother going toward it. Returns 1 if we
2525	* can see a direct way to get it	2454	* can see a direct way to get it
2526	* Modified to be map tile aware -.MSW	2455	* Modified to be map tile aware -.MSW
2527	*/	2456	*/
2528
2529		2457
		2458
		2459	int
2530	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2460	can_see_monsterP (maptile *m, int x, int y, int dir)
		2461	{
2531	sint16 dx, dy;	2462	sint16 dx, dy;
		2463	int
2532	int mflags;	2464	mflags;
2533		2465
		2466	if (dir < 0)
2534	if(dir<0) return 0; /* exit condition: invalid direction */	2467	return 0; /* exit condition: invalid direction */
2535		2468
2536	dx = x + freearr_x[dir];	2469	dx = x + freearr_x[dir];
2537	dy = y + freearr_y[dir];	2470	dy = y + freearr_y[dir];
2538		2471
2539	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2472	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2540		2473
2541	/* This functional arguably was incorrect before - it was	2474	/* This functional arguably was incorrect before - it was
2542	* checking for P_WALL - that was basically seeing if	2475	* checking for P_WALL - that was basically seeing if
2543	* we could move to the monster - this is being more	2476	* we could move to the monster - this is being more
2544	* literal on if we can see it. To know if we can actually	2477	* 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	2478	* move to the monster, we'd need the monster passed in or
2546	* at least its move type.	2479	* at least its move type.
2547	*/	2480	*/
2548	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2481	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2482	return 0;
2549		2483
2550	/* yes, can see. */	2484	/* yes, can see. */
2551	if(dir < 9) return 1;	2485	if (dir < 9)
		2486	return 1;
2552	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2487	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |
2553	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2488	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	}	2489	}
2556		2490
2557		2491
2558		2492
2559	/*	2493	/*
2560	* can_pick(picker, item): finds out if an object is possible to be	2494	* 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	2495	* picked up by the picker. Returnes 1 if it can be
2562	* picked up, otherwise 0.	2496	* picked up, otherwise 0.
2563	*	2497	*
…		…
2565	* core dumps if they do.	2499	* core dumps if they do.
2566	*	2500	*
2567	* Add a check so we can't pick up invisible objects (0.93.8)	2501	* Add a check so we can't pick up invisible objects (0.93.8)
2568	*/	2502	*/
2569		2503
		2504	int
2570	int can_pick(const object *who, const object *item) {	2505	can_pick (const object *who, const object *item)
		2506	{
2571	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2507	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2572	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2508	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2573	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2509	!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	}	2510	}
2576		2511
2577		2512
2578	/*	2513	/*
2579	* create clone from object to another	2514	* create clone from object to another
2580	*/	2515	*/
		2516	object *
2581	object *object_create_clone (object *asrc) {	2517	object_create_clone (object *asrc)
		2518	{
2582	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2519	object *dst = 0, *tmp, *src, *part, *prev, *item;
2583		2520
2584	if(!asrc) return NULL;	2521	if (!asrc)
		2522	return 0;
		2523
2585	src = asrc;	2524	src = asrc;
2586	if(src->head)	2525	if (src->head)
2587	src = src->head;	2526	src = src->head;
2588		2527
2589	prev = NULL;	2528	prev = 0;
2590	for(part = src; part; part = part->more) {	2529	for (part = src; part; part = part->more)
2591	tmp = get_object();	2530	{
2592	copy_object(part,tmp);	2531	tmp = part->clone ();
2593	tmp->x -= src->x;	2532	tmp->x -= src->x;
2594	tmp->y -= src->y;	2533	tmp->y -= src->y;
		2534
2595	if(!part->head) {	2535	if (!part->head)
		2536	{
2596	dst = tmp;	2537	dst = tmp;
2597	tmp->head = NULL;	2538	tmp->head = 0;
		2539	}
2598	} else {	2540	else
		2541	{
2599	tmp->head = dst;	2542	tmp->head = dst;
2600	}	2543	}
		2544
2601	tmp->more = NULL;	2545	tmp->more = 0;
		2546
2602	if(prev)	2547	if (prev)
2603	prev->more = tmp;	2548	prev->more = tmp;
		2549
2604	prev = tmp;	2550	prev = tmp;
2605	}	2551	}
2606	/*** copy inventory ***/	2552
2607	for(item = src->inv; item; item = item->below) {	2553	for (item = src->inv; item; item = item->below)
2608	(void) insert_ob_in_ob(object_create_clone(item),dst);	2554	insert_ob_in_ob (object_create_clone (item), dst);
2609	}
2610		2555
2611	return dst;	2556	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	}	2557	}
2621		2558
2622	/* GROS - Creates an object using a string representing its content. */	2559	/* 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 */	2560	/* 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, */	2561	/* 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. */	2562	/* 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. */	2563	/* Remember not to use load_object_str in a time-critical situation. */
2627	/* Also remember that multiparts objects are not supported for now. */	2564	/* Also remember that multiparts objects are not supported for now. */
2628		2565
		2566	object *
2629	object* load_object_str(const char *obstr)	2567	load_object_str (const char *obstr)
2630	{	2568	{
2631	object *op;	2569	object *op;
2632	FILE *tempfile;
2633	char filename[MAX_BUF];	2570	char filename[MAX_BUF];
		2571
2634	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2572	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
		2573
2635	tempfile=fopen(filename,"w");	2574	FILE *tempfile = fopen (filename, "w");
		2575
2636	if (tempfile == NULL)	2576	if (tempfile == NULL)
2637	{	2577	{
2638	LOG(llevError,"Error - Unable to access load object temp file\n");	2578	LOG (llevError, "Error - Unable to access load object temp file\n");
2639	return NULL;	2579	return NULL;
2640	};	2580	}
		2581
2641	fprintf(tempfile,obstr);	2582	fprintf (tempfile, obstr);
2642	fclose(tempfile);	2583	fclose (tempfile);
2643		2584
2644	op=get_object();	2585	op = object::create ();
2645		2586
2646	tempfile=fopen(filename,"r");	2587	object_thawer thawer (filename);
2647	if (tempfile == NULL)	2588
2648	{	2589	if (thawer)
2649	LOG(llevError,"Error - Unable to read object temp file\n");	2590	load_object (thawer, op, 0);
2650	return NULL;	2591
2651	};
2652	load_object(tempfile,op,LO_NEWFILE,0);
2653	LOG(llevDebug," load str completed, object=%s\n",op->name);	2592	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2654	CLEAR_FLAG(op,FLAG_REMOVED);	2593	CLEAR_FLAG (op, FLAG_REMOVED);
2655	fclose(tempfile);	2594
2656	return op;	2595	return op;
2657	}	2596	}
2658		2597
2659	/* This returns the first object in who's inventory that	2598	/* This returns the first object in who's inventory that
2660	* has the same type and subtype match.	2599	* has the same type and subtype match.
2661	* returns NULL if no match.	2600	* returns NULL if no match.
2662	*/	2601	*/
		2602	object *
2663	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2603	find_obj_by_type_subtype (const object *who, int type, int subtype)
2664	{	2604	{
2665	object *tmp;	2605	object *tmp;
2666		2606
2667	for (tmp=who->inv; tmp; tmp=tmp->below)	2607	for (tmp = who->inv; tmp; tmp = tmp->below)
2668	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2608	if (tmp->type == type && tmp->subtype == subtype)
		2609	return tmp;
2669		2610
2670	return NULL;	2611	return NULL;
2671	}	2612	}
2672		2613
2673	/* If ob has a field named key, return the link from the list,	2614	/* If ob has a field named key, return the link from the list,
2674	* otherwise return NULL.	2615	* otherwise return NULL.
2675	*	2616	*
2676	* key must be a passed in shared string - otherwise, this won't	2617	* key must be a passed in shared string - otherwise, this won't
2677	* do the desired thing.	2618	* do the desired thing.
2678	*/	2619	*/
		2620	key_value *
2679	key_value * get_ob_key_link(const object * ob, const char * key) {	2621	get_ob_key_link (const object *ob, const char *key)
		2622	{
2680	key_value * link;	2623	key_value *link;
2681		2624
2682	for (link = ob->key_values; link != NULL; link = link->next) {	2625	for (link = ob->key_values; link != NULL; link = link->next)
2683	if (link->key == key) {	2626	if (link->key == key)
2684	return link;	2627	return link;
2685	}	2628
2686	}
2687
2688	return NULL;	2629	return NULL;
2689	}	2630	}
2690		2631
2691	/*	2632	/*
2692	* Returns the value of op has an extra_field for key, or NULL.	2633	* Returns the value of op has an extra_field for key, or NULL.
2693	*	2634	*
2694	* The argument doesn't need to be a shared string.	2635	* The argument doesn't need to be a shared string.
2695	*	2636	*
2696	* The returned string is shared.	2637	* The returned string is shared.
2697	*/	2638	*/
		2639	const char *
2698	const char * get_ob_key_value(const object * op, const char * const key) {	2640	get_ob_key_value (const object *op, const char *const key)
		2641	{
2699	key_value * link;	2642	key_value *link;
2700	const char * canonical_key;	2643	shstr_cmp canonical_key (key);
		2644
		2645	if (!canonical_key)
2701		2646	{
2702	canonical_key = find_string(key);
2703
2704	if (canonical_key == NULL) {
2705	/* 1. There being a field named key on any object	2647	/* 1. There being a field named key on any object
2706	* implies there'd be a shared string to find.	2648	* implies there'd be a shared string to find.
2707	* 2. Since there isn't, no object has this field.	2649	* 2. Since there isn't, no object has this field.
2708	* 3. Therefore, *this* object doesn't have this field.	2650	* 3. Therefore, *this* object doesn't have this field.
2709	*/	2651	*/
2710	return NULL;	2652	return 0;
2711	}	2653	}
2712		2654
2713	/* This is copied from get_ob_key_link() above -	2655	/* This is copied from get_ob_key_link() above -
2714	* only 4 lines, and saves the function call overhead.	2656	* only 4 lines, and saves the function call overhead.
2715	*/	2657	*/
2716	for (link = op->key_values; link != NULL; link = link->next) {	2658	for (link = op->key_values; link; link = link->next)
2717	if (link->key == canonical_key) {	2659	if (link->key == canonical_key)
2718	return link->value;	2660	return link->value;
2719	}	2661
2720	}	2662	return 0;
2721	return NULL;
2722	}	2663	}
2723		2664
2724		2665
2725	/*	2666	/*
2726	* Updates the canonical_key in op to value.	2667	* 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	2671	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2731	* keys.	2672	* keys.
2732	*	2673	*
2733	* Returns TRUE on success.	2674	* Returns TRUE on success.
2734	*/	2675	*/
		2676	int
2735	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2677	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2678	{
		2679	key_value *
2736	key_value * field = NULL, *last=NULL;	2680	field = NULL, *last = NULL;
2737		2681
2738	for (field=op->key_values; field != NULL; field=field->next) {	2682	for (field = op->key_values; field != NULL; field = field->next)
2739	if (field->key != canonical_key) {
2740	last = field;
2741	continue;
2742	}
2743		2683	{
2744	if (field->value) FREE_AND_CLEAR_STR(field->value);	2684	if (field->key != canonical_key)
2745	if (value)	2685	{
2746	field->value = add_string(value);	2686	last = field;
2747	else {	2687	continue;
		2688	}
		2689
		2690	if (value)
		2691	field->value = value;
		2692	else
		2693	{
2748	/* Basically, if the archetype has this key set,	2694	/* Basically, if the archetype has this key set,
2749	* we need to store the null value so when we save	2695	* we need to store the null value so when we save
2750	* it, we save the empty value so that when we load,	2696	* it, we save the empty value so that when we load,
2751	* we get this value back again.	2697	* we get this value back again.
2752	*/	2698	*/
2753	if (get_ob_key_link(&op->arch->clone, canonical_key))	2699	if (get_ob_key_link (&op->arch->clone, canonical_key))
2754	field->value = NULL;	2700	field->value = 0;
2755	else {	2701	else
2756	/* Delete this link */	2702	{
2757	if (field->key) FREE_AND_CLEAR_STR(field->key);	2703	if (last)
2758	if (field->value) FREE_AND_CLEAR_STR(field->value);	2704	last->next = field->next;
2759	if (last) last->next = field->next;	2705	else
2760	else op->key_values = field->next;	2706	op->key_values = field->next;
2761	free(field);	2707
2762	}	2708	delete field;
2763	}	2709	}
		2710	}
2764	return TRUE;	2711	return TRUE;
2765	}	2712	}
2766	/* IF we get here, key doesn't exist */	2713	/* IF we get here, key doesn't exist */
2767		2714
2768	/* No field, we'll have to add it. */	2715	/* No field, we'll have to add it. */
		2716
		2717	if (!add_key)
2769		2718	{
2770	if (!add_key) {
2771	return FALSE;	2719	return FALSE;
2772	}	2720	}
2773	/* There isn't any good reason to store a null	2721	/* There isn't any good reason to store a null
2774	* value in the key/value list. If the archetype has	2722	* value in the key/value list. If the archetype has
2775	* this key, then we should also have it, so shouldn't	2723	* this key, then we should also have it, so shouldn't
2776	* be here. If user wants to store empty strings,	2724	* be here. If user wants to store empty strings,
2777	* should pass in ""	2725	* should pass in ""
2778	*/	2726	*/
2779	if (value == NULL) return TRUE;	2727	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;	2728	return TRUE;
		2729
		2730	field = new key_value;
		2731
		2732	field->key = canonical_key;
		2733	field->value = value;
		2734	/* Usual prepend-addition. */
		2735	field->next = op->key_values;
		2736	op->key_values = field;
		2737
		2738	return TRUE;
2790	}	2739	}
2791		2740
2792	/*	2741	/*
2793	* Updates the key in op to value.	2742	* Updates the key in op to value.
2794	*	2743	*
…		…
2796	* and not add new ones.	2745	* and not add new ones.
2797	* In general, should be little reason FALSE is ever passed in for add_key	2746	* In general, should be little reason FALSE is ever passed in for add_key
2798	*	2747	*
2799	* Returns TRUE on success.	2748	* Returns TRUE on success.
2800	*/	2749	*/
		2750	int
2801	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2751	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2802	const char * canonical_key = NULL;	2752	{
2803	int floating_ref = FALSE;	2753	shstr key_ (key);
2804	int ret;	2754
		2755	return set_ob_key_value_s (op, key_, value, add_key);
		2756	}
		2757
		2758	object::depth_iterator::depth_iterator (object *container)
		2759	: iterator_base (container)
		2760	{
		2761	while (item->inv)
		2762	item = item->inv;
		2763	}
		2764
		2765	void
		2766	object::depth_iterator::next ()
		2767	{
		2768	if (item->below)
2805		2769	{
2806	/* HACK This mess is to make sure set_ob_value() passes a shared string	2770	item = item->below;
2807	* to get_ob_key_link(), without leaving a leaked refcount.	2771
2808	*/	2772	while (item->inv)
		2773	item = item->inv;
2809		2774	}
2810	canonical_key = find_string(key);	2775	else
2811	if (canonical_key == NULL) {	2776	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	}	2777	}
		2778
		2779	// return a suitable string describing an objetc in enough detail to find it
		2780	const char *
		2781	object::debug_desc (char *info) const
		2782	{
		2783	char info2[256 * 3];
		2784	char *p = info;
		2785
		2786	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2787	count,
		2788	&name,
		2789	title ? " " : "",
		2790	title ? (const char *)title : "");
		2791
		2792	if (env)
		2793	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2794
		2795	if (map)
		2796	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2797
		2798	return info;
		2799	}
		2800
		2801	const char *
		2802	object::debug_desc () const
		2803	{
		2804	static char info[256 * 3];
		2805	return debug_desc (info);
		2806	}
		2807

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