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Comparing deliantra/server/common/object.C (file contents):
Revision 1.2 by root, Fri Aug 25 17:11:52 2006 UTC vs.
Revision 1.73 by root, Wed Dec 20 01:19:11 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;	35	#include <bitset>
		36
44	int nrofallocobjects = 0;	37	int nrofallocobjects = 0;
45	#undef OBJ_EXPAND	38	static UUID uuid;
46	#define OBJ_EXPAND 1	39	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		40
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 */	41	object *active_objects; /* List of active objects that need to be processed */
56		42
57	void (*object_free_callback)(object *ob);	43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
58
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};	44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
62	short freearr_y[SIZEOFFREE]=	45	};
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,	46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
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};	47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
65	int maxfree[SIZEOFFREE]=	48	};
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,	49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
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};	50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		51	};
68	int freedir[SIZEOFFREE]= {	52	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,	53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
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};	54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		55	};
71		56
		57	static void
		58	write_uuid (void)
		59	{
		60	char filename1[MAX_BUF], filename2[MAX_BUF];
		61
		62	sprintf (filename1, "%s/uuid", settings.localdir);
		63	sprintf (filename2, "%s/uuid~", settings.localdir);
		64
		65	FILE *fp;
		66
		67	if (!(fp = fopen (filename2, "w")))
		68	{
		69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		70	return;
		71	}
		72
		73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		74	fclose (fp);
		75	rename (filename2, filename1);
		76	}
		77
		78	static void
		79	read_uuid (void)
		80	{
		81	char filename[MAX_BUF];
		82
		83	sprintf (filename, "%s/uuid", settings.localdir);
		84
		85	FILE *fp;
		86
		87	if (!(fp = fopen (filename, "r")))
		88	{
		89	if (errno == ENOENT)
		90	{
		91	LOG (llevInfo, "RESET uid to 1\n");
		92	uuid.seq = 0;
		93	write_uuid ();
		94	return;
		95	}
		96
		97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		98	_exit (1);
		99	}
		100
		101	int version;
		102	unsigned long long uid;
		103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		104	{
		105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		106	_exit (1);
		107	}
		108
		109	uuid.seq = uid;
		110	write_uuid ();
		111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		112	fclose (fp);
		113	}
		114
		115	UUID
		116	gen_uuid ()
		117	{
		118	UUID uid;
		119
		120	uid.seq = ++uuid.seq;
		121
		122	if (!(uuid.seq & (UUID_SKIP - 1)))
		123	write_uuid ();
		124
		125	return uid;
		126	}
		127
		128	void
		129	init_uuid ()
		130	{
		131	read_uuid ();
		132	}
72		133
73	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		135	static int
74	static int compare_ob_value_lists_one(const object * wants, const object * has) {	136	compare_ob_value_lists_one (const object *wants, const object *has)
		137	{
75	key_value * wants_field;	138	key_value *wants_field;
76		139
77	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
78	* objects with lists are rare, and lists stay short. If not, use a	141	* objects with lists are rare, and lists stay short. If not, use a
79	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
80	*/	143	*/
81		144
82	/* For each field in wants, */	145	/* For each field in wants, */
83	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)
		147	{
84	key_value * has_field;	148	key_value *has_field;
85		149
86	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
87	has_field = get_ob_key_link(has, wants_field->key);	151	has_field = get_ob_key_link (has, wants_field->key);
		152
		153	if (has_field == NULL)
88		154	{
89	if (has_field == NULL) {
90	/* No field with that name. */	155	/* No field with that name. */
91	return FALSE;	156	return FALSE;
92	}
93		157	}
		158
94	/* Found the matching field. */	159	/* Found the matching field. */
95	if (has_field->value != wants_field->value) {	160	if (has_field->value != wants_field->value)
		161	{
96	/* Values don't match, so this half of the comparison is false. */	162	/* Values don't match, so this half of the comparison is false. */
97	return FALSE;	163	return FALSE;
98	}	164	}
99		165
100	/* If we get here, we found a match. Now for the next field in wants. */	166	/* If we get here, we found a match. Now for the next field in wants. */
101	}
102		167	}
		168
103	/* If we get here, every field in wants has a matching field in has. */	169	/* If we get here, every field in wants has a matching field in has. */
104	return TRUE;	170	return TRUE;
105	}	171	}
106		172
107	/* Returns TRUE if ob1 has the same key_values as ob2. */	173	/* Returns TRUE if ob1 has the same key_values as ob2. */
		174	static int
108	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	175	compare_ob_value_lists (const object *ob1, const object *ob2)
		176	{
109	/* However, there may be fields in has which aren't partnered in wants,	177	/* However, there may be fields in has which aren't partnered in wants,
110	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
111	*/	179	*/
112	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
113	}	181	}
114		182
115	/* Function examines the 2 objects given to it, and returns true if	183	/* Function examines the 2 objects given to it, and returns true if
116	* they can be merged together.	184	* they can be merged together.
117	*	185	*
118	* Note that this function appears a lot longer than the macro it	186	* Note that this function appears a lot longer than the macro it
119	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
120	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
121	*	189	*
122	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
123	*	191	*
124	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
125	* check weight	193	* check weight
126	*/	194	*/
127		195
128	int CAN_MERGE(object *ob1, object *ob2) {	196	bool object::can_merge_slow (object *ob1, object *ob2)
129		197	{
130	/* A couple quicksanity checks */	198	/* A couple quicksanity checks */
131	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	199	if (ob1 == ob2
132		200	|| ob1->type != ob2->type
133	if (ob1->speed != ob2->speed) return 0;	201	|| ob1->speed != ob2->speed
134	/* Note sure why the following is the case - either the object has to	202	|| ob1->value != ob2->value
135	* be animated or have a very low speed. Is this an attempted monster	203	|| ob1->name != ob2->name)
136	* check?
137	*/
138	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)
139	return 0;	204	return 0;
140		205
		206	//TODO: this ain't working well, use nicer and correct overflow check
141	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	207	/* 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	208	* value could not be stored in a sint32 (which unfortunately sometimes is
143	* used to store nrof).	209	* used to store nrof).
144	*/	210	*/
145	if (ob1->nrof+ob2->nrof >= 1UL<<31)	211	if (ob1->nrof + ob2->nrof >= 1UL << 31)
146	return 0;	212	return 0;
147		213
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.	214	/* 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	215	* 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	216	* 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	217	* are not equal - just if it has been identified, the been_applied
167	* flags lose any meaning.	218	* flags lose any meaning.
168	*/	219	*/
169	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))	220	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
170	SET_FLAG(ob1, FLAG_BEEN_APPLIED);	221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
171		222
172	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))	223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
173	SET_FLAG(ob2, FLAG_BEEN_APPLIED);	224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
174		225
175		226	if ((ob1->flags ^ ob2->flags).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
176	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	227	|| ob1->arch != ob2->arch
177	* being locked in inventory should prevent merging.	228	|| ob1->name != ob2->name
178	* 0x4 in flags3 is CLIENT_SENT	229	|| ob1->title != ob2->title
179	*/	230	|| ob1->msg != ob2->msg
180	if ((ob1->arch != ob2->arch) ||	231	|| ob1->weight != ob2->weight
181	(ob1->flags[0] != ob2->flags[0]) ||
182	(ob1->flags[1] != ob2->flags[1]) ||
183	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||
184	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
185	(ob1->name != ob2->name) ||
186	(ob1->title != ob2->title) ||
187	(ob1->msg != ob2->msg) ||
188	(ob1->weight != ob2->weight) ||
189	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||	232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
190	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||	233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
191	(ob1->attacktype != ob2->attacktype) ||	234	|| ob1->attacktype != ob2->attacktype
192	(ob1->magic != ob2->magic) ||	235	|| ob1->magic != ob2->magic
193	(ob1->slaying != ob2->slaying) ||	236	|| ob1->slaying != ob2->slaying
194	(ob1->skill != ob2->skill) ||	237	|| ob1->skill != ob2->skill
195	(ob1->value != ob2->value) ||	238	|| ob1->value != ob2->value
196	(ob1->animation_id != ob2->animation_id) ||	239	|| ob1->animation_id != ob2->animation_id
197	(ob1->client_type != ob2->client_type) ||	240	|| ob1->client_type != ob2->client_type
198	(ob1->materialname != ob2->materialname) ||	241	|| ob1->materialname != ob2->materialname
199	(ob1->lore != ob2->lore) ||	242	|| ob1->lore != ob2->lore
200	(ob1->subtype != ob2->subtype) ||	243	|| ob1->subtype != ob2->subtype
201	(ob1->move_type != ob2->move_type) ||	244	|| ob1->move_type != ob2->move_type
202	(ob1->move_block != ob2->move_block) ||	245	|| ob1->move_block != ob2->move_block
203	(ob1->move_allow != ob2->move_allow) ||	246	|| ob1->move_allow != ob2->move_allow
204	(ob1->move_on != ob2->move_on) ||	247	|| ob1->move_on != ob2->move_on
205	(ob1->move_off != ob2->move_off) ||	248	|| ob1->move_off != ob2->move_off
206	(ob1->move_slow != ob2->move_slow) ||	249	|| ob1->move_slow != ob2->move_slow
207	(ob1->move_slow_penalty != ob2->move_slow_penalty)	250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
208	)
209	return 0;	251	return 0;
210		252
		253	/* This is really a spellbook check - really, we should
		254	* check all objects in the inventory.
		255	*/
		256	if (ob1->inv || ob2->inv)
		257	{
		258	/* if one object has inventory but the other doesn't, not equiv */
		259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
		260	return 0;
		261
		262	/* Now check to see if the two inventory objects could merge */
		263	if (!object::can_merge (ob1->inv, ob2->inv))
		264	return 0;
		265
		266	/* inventory ok - still need to check rest of this object to see
		267	* if it is valid.
		268	*/
		269	}
		270
211	/* Don't merge objects that are applied. With the new 'body' code,	271	/* 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	272	* 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.	273	* some items equipped, and we don't want those to merge.
214	*/	274	*/
215	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	275	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
216	return 0;	276	return 0;
217		277
		278	/* Note sure why the following is the case - either the object has to
		279	* be animated or have a very low speed. Is this an attempted monster
		280	* check?
		281	*/
		282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
		283	return 0;
		284
218	switch (ob1->type) {	285	switch (ob1->type)
		286	{
219	case SCROLL:	287	case SCROLL:
220	if (ob1->level != ob2->level) return 0;	288	if (ob1->level != ob2->level)
		289	return 0;
221	break;	290	break;
222
223	}	291	}
		292
224	if (ob1->key_values != NULL || ob2->key_values != NULL) {	293	if (ob1->key_values != NULL || ob2->key_values != NULL)
		294	{
225	/* At least one of these has key_values. */	295	/* At least one of these has key_values. */
226	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {	296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
227	/* One has fields, but the other one doesn't. */	297	/* One has fields, but the other one doesn't. */
228	return 0;	298	return 0;
229	} else if (!compare_ob_value_lists(ob1, ob2)) {	299	else if (!compare_ob_value_lists (ob1, ob2))
230	return 0;	300	return 0;
231	}	301	}
		302
		303	//TODO: generate an event or call into perl for additional checks
		304	if (ob1->self || ob2->self)
232	}	305	{
		306	ob1->optimise ();
		307	ob2->optimise ();
233		308
		309	if (ob1->self || ob2->self)
		310	return 0;
		311	}
		312
234	/* Everything passes, must be OK. */	313	/* Everything passes, must be OK. */
235	return 1;	314	return 1;
236	}	315	}
237		316
238	/*	317	/*
239	* sum_weight() is a recursive function which calculates the weight	318	* sum_weight() is a recursive function which calculates the weight
240	* an object is carrying. It goes through in figures out how much	319	* an object is carrying. It goes through in figures out how much
241	* containers are carrying, and sums it up.	320	* containers are carrying, and sums it up.
242	*/	321	*/
243	signed long sum_weight(object *op) {	322	long
		323	sum_weight (object *op)
		324	{
244	signed long sum;	325	long sum;
245	object *inv;	326	object *inv;
		327
246	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		329	{
247	if (inv->inv)	330	if (inv->inv)
248	sum_weight(inv);	331	sum_weight (inv);
249	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
250	}	333	}
		334
251	if (op->type == CONTAINER && op->stats.Str)	335	if (op->type == CONTAINER && op->stats.Str)
252	sum = (sum * (100 - op->stats.Str))/100;	336	sum = (sum * (100 - op->stats.Str)) / 100;
		337
253	if(op->carrying != sum)	338	if (op->carrying != sum)
254	op->carrying = sum;	339	op->carrying = sum;
		340
255	return sum;	341	return sum;
256	}	342	}
257		343
258	/**	344	/**
259	* Return the outermost environment object for a given object.	345	* Return the outermost environment object for a given object.
260	*/	346	*/
261		347
		348	object *
262	object *object_get_env_recursive (object *op) {	349	object_get_env_recursive (object *op)
		350	{
263	while (op->env != NULL)	351	while (op->env != NULL)
264	op = op->env;	352	op = op->env;
265	return op;	353	return op;
266	}	354	}
267		355
268	/*	356	/*
269	* Eneq(@csd.uu.se): Since we can have items buried in a character we need	357	* 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	358	* a better check. We basically keeping traversing up until we can't
271	* or find a player.	359	* or find a player.
272	*/	360	*/
273		361
		362	object *
274	object *is_player_inv (object *op) {	363	is_player_inv (object *op)
		364	{
275	for (;op!=NULL&&op->type!=PLAYER; op=op->env)	365	for (; op != NULL && op->type != PLAYER; op = op->env)
276	if (op->env==op)	366	if (op->env == op)
277	op->env = NULL;	367	op->env = NULL;
278	return op;	368	return op;
279	}	369	}
280		370
281	/*	371	/*
282	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	372	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
283	* Some error messages.	373	* Some error messages.
284	* The result of the dump is stored in the static global errmsg array.	374	* The result of the dump is stored in the static global errmsg array.
285	*/	375	*/
286		376
287	void dump_object2(object *op) {	377	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) {	378	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	{	379	{
342	char *cp;	380	if (!op)
		381	return strdup ("[NULLOBJ]");
343		382
344	if(op==NULL)	383	object_freezer freezer;
345	{	384	save_object (freezer, op, 3);
346	strcpy(outstr,"[NULL pointer]");	385	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	}	386	}
384		387
385	/*	388	/*
386	* get_nearest_part(multi-object, object 2) returns the part of the	389	* get_nearest_part(multi-object, object 2) returns the part of the
387	* multi-object 1 which is closest to the second object.	390	* multi-object 1 which is closest to the second object.
388	* If it's not a multi-object, it is returned.	391	* If it's not a multi-object, it is returned.
389	*/	392	*/
390		393
		394	object *
391	object *get_nearest_part(object *op, const object *pl) {	395	get_nearest_part (object *op, const object *pl)
		396	{
392	object *tmp,*closest;	397	object *tmp, *closest;
393	int last_dist,i;	398	int last_dist, i;
		399
394	if(op->more==NULL)	400	if (op->more == NULL)
395	return op;	401	return op;
396	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	402	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
397	if((i=distance(tmp,pl))<last_dist)	403	if ((i = distance (tmp, pl)) < last_dist)
398	closest=tmp,last_dist=i;	404	closest = tmp, last_dist = i;
399	return closest;	405	return closest;
400	}	406	}
401		407
402	/*	408	/*
403	* Returns the object which has the count-variable equal to the argument.	409	* Returns the object which has the count-variable equal to the argument.
404	*/	410	*/
405		411
		412	object *
406	object *find_object(tag_t i) {	413	find_object (tag_t i)
407	object *op;	414	{
408	for(op=objects;op!=NULL;op=op->next)	415	for (object *op = object::first; op; op = op->next)
409	if(op->count==i)	416	if (op->count == i)
410	break;	417	return op;
		418
411	return op;	419	return 0;
412	}	420	}
413		421
414	/*	422	/*
415	* Returns the first object which has a name equal to the argument.	423	* Returns the first object which has a name equal to the argument.
416	* Used only by the patch command, but not all that useful.	424	* Used only by the patch command, but not all that useful.
417	* Enables features like "patch <name-of-other-player> food 999"	425	* Enables features like "patch <name-of-other-player> food 999"
418	*/	426	*/
419		427
		428	object *
420	object *find_object_name(const char *str) {	429	find_object_name (const char *str)
421	const char *name=add_string(str);	430	{
		431	shstr_cmp str_ (str);
422	object *op;	432	object *op;
		433
423	for(op=objects;op!=NULL;op=op->next)	434	for (op = object::first; op != NULL; op = op->next)
424	if(op->name==name)	435	if (op->name == str_)
425	break;	436	break;
426	free_string(name);	437
427	return op;	438	return op;
428	}	439	}
429		440
		441	void
430	void free_all_object_data(void) {	442	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	{	443	{
472	if (!op) return;	444	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	}	445	}
480
481
482		446
483	/*	447	/*
484	* Sets the owner and sets the skill and exp pointers to owner's current	448	* Sets the owner and sets the skill and exp pointers to owner's current
485	* skill and experience objects.	449	* skill and experience objects.
486	*/	450	*/
487	void set_owner (object *op, object *owner)	451	void
		452	object::set_owner (object *owner)
488	{	453	{
489	if(owner==NULL||op==NULL)	454	if (!owner)
490	return;	455	return;
491		456
492	/* next line added to allow objects which own objects */	457	/* next line added to allow objects which own objects */
493	/* Add a check for ownercounts in here, as I got into an endless loop	458	/* 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	459	* with the fireball owning a poison cloud which then owned the
495	* fireball. I believe that was caused by one of the objects getting	460	* fireball. I believe that was caused by one of the objects getting
496	* freed and then another object replacing it. Since the ownercounts	461	* 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.	462	* didn't match, this check is valid and I believe that cause is valid.
498	*/	463	*/
499	while (owner->owner && owner!=owner->owner &&	464	while (owner->owner)
500	owner->ownercount==owner->owner->count) owner=owner->owner;	465	owner = owner->owner;
501		466
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;	467	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	}	468	}
556		469
557	/* Zero the key_values on op, decrementing the shared-string	470	/* Zero the key_values on op, decrementing the shared-string
558	* refcounts and freeing the links.	471	* refcounts and freeing the links.
559	*/	472	*/
		473	static void
560	static void free_key_values(object * op) {	474	free_key_values (object *op)
561	key_value * i;	475	{
562	key_value * next = NULL;	476	for (key_value *i = op->key_values; i != 0;)
563		477	{
564	if (op->key_values == NULL) return;	478	key_value *next = i->next;
		479	delete i;
		480
		481	i = next;
565		482	}
566	for (i = op->key_values; i != NULL; i = next) {	483
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;	484	op->key_values = 0;
577	}	485	}
578		486
		487	void object::clear ()
		488	{
		489	attachable_base::clear ();
579		490
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);	491	free_key_values (this);
610		492
611	/* the memset will clear all these values for us, but we need	493	owner = 0;
612	* to reduce the refcount on them.	494	name = 0;
613	*/	495	name_pl = 0;
614	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);	496	title = 0;
615	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);	497	race = 0;
616	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);	498	slaying = 0;
617	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);	499	skill = 0;
618	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);	500	msg = 0;
619	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);	501	lore = 0;
620	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);	502	custom_name = 0;
621	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);	503	materialname = 0;
622	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);	504	contr = 0;
		505	below = 0;
		506	above = 0;
		507	inv = 0;
		508	container = 0;
		509	env = 0;
		510	more = 0;
		511	head = 0;
		512	map = 0;
		513	active_next = 0;
		514	active_prev = 0;
623		515
		516	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
624		517
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);	518	SET_FLAG (this, FLAG_REMOVED);
631		519
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 */	520	/* What is not cleared is next, prev, and count */
647		521
648	op->expmul=1.0;	522	expmul = 1.0;
649	op->face = blank_face;	523	face = blank_face;
650	op->attacked_by_count = (tag_t) -1;	524
651	if (settings.casting_time)	525	if (settings.casting_time)
652	op->casting_time = -1;	526	casting_time = -1;
653
654	}	527	}
655		528
656	/*	529	/*
657	* copy object first frees everything allocated by the second object,	530	* copy_to first frees everything allocated by the dst object,
658	* and then copies the contends of the first object into the second	531	* and then copies the contents of itself into the second
659	* object, allocating what needs to be allocated. Basically, any	532	* object, allocating what needs to be allocated. Basically, any
660	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	533	* 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	534	* if the first object is freed, the pointers in the new object
662	* will point at garbage.	535	* will point at garbage.
663	*/	536	*/
		537	void
		538	object::copy_to (object *dst)
		539	{
		540	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
		541	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
664		542
665	void copy_object(object *op2, object *op) {	543	*(object_copy *)dst = *this;
666	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);	544	*(object_pod *)dst = *this;
667	event *evt, *evt2, *evt_new;
668		545
669	if (object_free_callback)	546	if (self || cb)
670	object_free_callback (op);	547	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
671		548
672	// callback registries and self are empty for copied objects	549	if (is_freed)
673	// this ought to change in the future	550	SET_FLAG (dst, FLAG_FREED);
674		551
675	/* Decrement the refcounts, but don't bother zeroing the fields;	552	if (is_removed)
676	they'll be overwritten by memcpy. */	553	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		554
688	/* Basically, same code as from clear_object() */	555	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;	556	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
719		557
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. */	558	/* Copy over key_values, if any. */
742	if (op2->key_values != NULL) {	559	if (key_values)
743	key_value * tail = NULL;	560	{
		561	key_value *tail = 0;
744	key_value * i;	562	key_value *i;
745		563
746	op->key_values = NULL;	564	dst->key_values = 0;
747		565
748	for (i = op2->key_values; i != NULL; i = i->next) {	566	for (i = key_values; i; i = i->next)
749	key_value * new_link = (key_value *) malloc(sizeof(key_value));	567	{
		568	key_value *new_link = new key_value;
750		569
751	new_link->next = NULL;	570	new_link->next = 0;
752	new_link->key = add_refcount(i->key);	571	new_link->key = i->key;
753	if (i->value)	572	new_link->value = i->value;
754	new_link->value = add_refcount(i->value);
755	else
756	new_link->value = NULL;
757		573
758	/* Try and be clever here, too. */	574	/* Try and be clever here, too. */
759	if (op->key_values == NULL) {	575	if (!dst->key_values)
760	op->key_values = new_link;	576	{
761	tail = new_link;	577	dst->key_values = new_link;
762	} else {	578	tail = new_link;
763	tail->next = new_link;	579	}
764	tail = new_link;	580	else
		581	{
		582	tail->next = new_link;
		583	tail = new_link;
		584	}
		585	}
765	}	586	}
766	}
767	}
768		587
769	update_ob_speed(op);	588	update_ob_speed (dst);
770	}	589	}
771		590
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;	591	object *
813		592	object::clone ()
814	if(free_objects==NULL) {	593	{
815	expand_objects();	594	object *neu = create ();
816	}	595	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;	596	return neu;
855	}	597	}
856		598
857	/*	599	/*
858	* If an object with the IS_TURNABLE() flag needs to be turned due	600	* 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	601	* 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.	602	* be called to update the face variable, _and_ how it looks on the map.
861	*/	603	*/
862		604
		605	void
863	void update_turn_face(object *op) {	606	update_turn_face (object *op)
		607	{
864	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	608	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
865	return;	609	return;
866	SET_ANIMATION(op, op->direction);	610	SET_ANIMATION (op, op->direction);
867	update_object(op,UP_OBJ_FACE);	611	update_object (op, UP_OBJ_FACE);
868	}	612	}
869		613
870	/*	614	/*
871	* Updates the speed of an object. If the speed changes from 0 to another	615	* 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.	616	* 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.	617	* This function needs to be called whenever the speed of an object changes.
874	*/	618	*/
875		619	void
876	void update_ob_speed(object *op) {	620	update_ob_speed (object *op)
		621	{
877	extern int arch_init;	622	extern int arch_init;
878		623
879	/* No reason putting the archetypes objects on the speed list,	624	/* No reason putting the archetypes objects on the speed list,
880	* since they never really need to be updated.	625	* since they never really need to be updated.
881	*/	626	*/
882		627
883	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	628	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		629	{
884	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	630	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
885	#ifdef MANY_CORES	631	#ifdef MANY_CORES
886	abort();	632	abort ();
887	#else	633	#else
888	op->speed = 0;	634	op->speed = 0;
889	#endif	635	#endif
890	}	636	}
		637
891	if (arch_init) {	638	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;	639	return;
898		640
		641	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		642	{
		643	/* If already on active list, don't do anything */
		644	if (op->active_next || op->active_prev || op == active_objects)
		645	return;
		646
899	/* process_events() expects us to insert the object at the beginning	647	/* process_events() expects us to insert the object at the beginning
900	* of the list. */	648	* of the list. */
901	op->active_next = active_objects;	649	op->active_next = active_objects;
		650
902	if (op->active_next!=NULL)	651	if (op->active_next != NULL)
903	op->active_next->active_prev = op;	652	op->active_next->active_prev = op;
		653
904	active_objects = op;	654	active_objects = op;
		655	}
		656	else
905	}	657	{
906	else {
907	/* If not on the active list, nothing needs to be done */	658	/* If not on the active list, nothing needs to be done */
908	if (!op->active_next && !op->active_prev && op!=active_objects)	659	if (!op->active_next && !op->active_prev && op != active_objects)
909	return;	660	return;
910		661
911	if (op->active_prev==NULL) {	662	if (op->active_prev == NULL)
		663	{
912	active_objects = op->active_next;	664	active_objects = op->active_next;
		665
913	if (op->active_next!=NULL)	666	if (op->active_next != NULL)
914	op->active_next->active_prev = NULL;	667	op->active_next->active_prev = NULL;
915	}	668	}
916	else {	669	else
		670	{
917	op->active_prev->active_next = op->active_next;	671	op->active_prev->active_next = op->active_next;
		672
918	if (op->active_next)	673	if (op->active_next)
919	op->active_next->active_prev = op->active_prev;	674	op->active_next->active_prev = op->active_prev;
920	}	675	}
		676
921	op->active_next = NULL;	677	op->active_next = NULL;
922	op->active_prev = NULL;	678	op->active_prev = NULL;
923	}	679	}
924	}	680	}
925		681
926	/* This function removes object 'op' from the list of active	682	/* This function removes object 'op' from the list of active
927	* objects.	683	* objects.
…		…
929	* reference maps where you don't want an object that isn't	685	* reference maps where you don't want an object that isn't
930	* in play chewing up cpu time getting processed.	686	* in play chewing up cpu time getting processed.
931	* The reverse of this is to call update_ob_speed, which	687	* The reverse of this is to call update_ob_speed, which
932	* will do the right thing based on the speed of the object.	688	* will do the right thing based on the speed of the object.
933	*/	689	*/
		690	void
934	void remove_from_active_list(object *op)	691	remove_from_active_list (object *op)
935	{	692	{
936	/* If not on the active list, nothing needs to be done */	693	/* If not on the active list, nothing needs to be done */
937	if (!op->active_next && !op->active_prev && op!=active_objects)	694	if (!op->active_next && !op->active_prev && op != active_objects)
938	return;	695	return;
939		696
940	if (op->active_prev==NULL) {	697	if (op->active_prev == NULL)
		698	{
941	active_objects = op->active_next;	699	active_objects = op->active_next;
942	if (op->active_next!=NULL)	700	if (op->active_next != NULL)
943	op->active_next->active_prev = NULL;	701	op->active_next->active_prev = NULL;
		702	}
		703	else
944	}	704	{
945	else {
946	op->active_prev->active_next = op->active_next;	705	op->active_prev->active_next = op->active_next;
947	if (op->active_next)	706	if (op->active_next)
948	op->active_next->active_prev = op->active_prev;	707	op->active_next->active_prev = op->active_prev;
949	}	708	}
950	op->active_next = NULL;	709	op->active_next = NULL;
951	op->active_prev = NULL;	710	op->active_prev = NULL;
952	}	711	}
953		712
954	/*	713	/*
955	* update_object() updates the array which represents the map.	714	* update_object() updates the array which represents the map.
956	* It takes into account invisible objects (and represent squares covered	715	* It takes into account invisible objects (and represent squares covered
…		…
971	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	730	* 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.	731	* as that is easier than trying to look at what may have changed.
973	* UP_OBJ_FACE: only the objects face has changed.	732	* UP_OBJ_FACE: only the objects face has changed.
974	*/	733	*/
975		734
		735	void
976	void update_object(object *op, int action) {	736	update_object (object *op, int action)
		737	{
977	int update_now=0, flags;	738	int update_now = 0, flags;
978	MoveType move_on, move_off, move_block, move_slow;	739	MoveType move_on, move_off, move_block, move_slow;
979		740
980	if (op == NULL) {	741	if (op == NULL)
		742	{
981	/* this should never happen */	743	/* this should never happen */
982	LOG(llevDebug,"update_object() called for NULL object.\n");	744	LOG (llevDebug, "update_object() called for NULL object.\n");
983	return;	745	return;
984	}
985		746	}
		747
986	if(op->env!=NULL) {	748	if (op->env != NULL)
		749	{
987	/* Animation is currently handled by client, so nothing	750	/* Animation is currently handled by client, so nothing
988	* to do in this case.	751	* to do in this case.
989	*/	752	*/
990	return;	753	return;
991	}	754	}
992		755
993	/* If the map is saving, don't do anything as everything is	756	/* If the map is saving, don't do anything as everything is
994	* going to get freed anyways.	757	* going to get freed anyways.
995	*/	758	*/
996	if (!op->map || op->map->in_memory == MAP_SAVING) return;	759	if (!op->map || op->map->in_memory == MAP_SAVING)
997		760	return;
		761
998	/* make sure the object is within map boundaries */	762	/* make sure the object is within map boundaries */
999	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	763	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)) {	764	{
1001	LOG(llevError,"update_object() called for object out of map!\n");	765	LOG (llevError, "update_object() called for object out of map!\n");
1002	#ifdef MANY_CORES	766	#ifdef MANY_CORES
1003	abort();	767	abort ();
1004	#endif	768	#endif
1005	return;	769	return;
1006	}
1007		770	}
		771
1008	flags = GET_MAP_FLAGS(op->map, op->x, op->y);	772	flags = GET_MAP_FLAGS (op->map, op->x, op->y);
1009	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);	773	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);	774	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);	775	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);	776	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);	777	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
1014		778
1015	if (action == UP_OBJ_INSERT) {	779	if (action == UP_OBJ_INSERT)
		780	{
1016	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	781	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))
1017	update_now=1;	782	update_now = 1;
1018		783
1019	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	784	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))
1020	update_now=1;	785	update_now = 1;
1021		786
1022	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	787	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))
1023	update_now=1;	788	update_now = 1;
1024		789
1025	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	790	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
1026	update_now=1;	791	update_now = 1;
1027		792
		793	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
		794	update_now = 1;
		795
1028	if ((move_on | op->move_on) != move_on) update_now=1;	796	if ((move_on | op->move_on) != move_on)
		797	update_now = 1;
		798
1029	if ((move_off | op->move_off) != move_off) update_now=1;	799	if ((move_off | op->move_off) != move_off)
		800	update_now = 1;
		801
1030	/* This isn't perfect, but I don't expect a lot of objects to	802	/* This isn't perfect, but I don't expect a lot of objects to
1031	* to have move_allow right now.	803	* to have move_allow right now.
1032	*/	804	*/
1033	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	805	if (((move_block | op->move_block) & ~op->move_allow) != move_block)
1034	update_now=1;	806	update_now = 1;
		807
1035	if ((move_slow | op->move_slow) != move_slow) update_now=1;	808	if ((move_slow | op->move_slow) != move_slow)
		809	update_now = 1;
1036	}	810	}
		811
1037	/* if the object is being removed, we can't make intelligent	812	/* if the object is being removed, we can't make intelligent
1038	* decisions, because remove_ob can't really pass the object	813	* decisions, because remove_ob can't really pass the object
1039	* that is being removed.	814	* that is being removed.
1040	*/	815	*/
1041	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	816	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1042	update_now=1;	817	update_now = 1;
1043	} else if (action == UP_OBJ_FACE) {	818	else if (action == UP_OBJ_FACE)
1044	/* Nothing to do for that case */	819	/* Nothing to do for that case */ ;
1045	}
1046	else {	820	else
1047	LOG(llevError,"update_object called with invalid action: %d\n", action);	821	LOG (llevError, "update_object called with invalid action: %d\n", action);
1048	}
1049		822
1050	if (update_now) {	823	if (update_now)
		824	{
1051	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);	825	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);	826	update_position (op->map, op->x, op->y);
1053	}	827	}
1054		828
1055	if(op->more!=NULL)	829	if (op->more != NULL)
1056	update_object(op->more, action);	830	update_object (op->more, action);
1057	}	831	}
1058		832
		833	object::vector object::mortals;
		834	object::vector object::objects; // not yet used
		835	object *object::first;
		836
		837	void object::free_mortals ()
		838	{
		839	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
		840	if ((*i)->refcnt)
		841	++i; // further delay freeing
		842	else
		843	{
		844	delete *i;
		845	mortals.erase (i);
		846	}
		847	}
		848
		849	object::object ()
		850	{
		851	SET_FLAG (this, FLAG_REMOVED);
		852
		853	expmul = 1.0;
		854	face = blank_face;
		855	}
		856
		857	object::~object ()
		858	{
		859	free_key_values (this);
		860	}
		861
		862	void object::link ()
		863	{
		864	count = ++ob_count;
		865	uuid = gen_uuid ();
		866
		867	prev = 0;
		868	next = object::first;
		869
		870	if (object::first)
		871	object::first->prev = this;
		872
		873	object::first = this;
		874	}
		875
		876	void object::unlink ()
		877	{
		878	if (this == object::first)
		879	object::first = next;
		880
		881	/* Remove this object from the list of used objects */
		882	if (prev) prev->next = next;
		883	if (next) next->prev = prev;
		884
		885	prev = 0;
		886	next = 0;
		887	}
		888
		889	object *object::create ()
		890	{
		891	object *op = new object;
		892	op->link ();
		893	return op;
		894	}
1059		895
1060	/*	896	/*
1061	* free_object() frees everything allocated by an object, removes	897	* free_object() frees everything allocated by an object, removes
1062	* it from the list of used objects, and puts it on the list of	898	* 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.	899	* free objects. The IS_FREED() flag is set in the object.
1064	* The object must have been removed by remove_ob() first for	900	* The object must have been removed by remove_ob() first for
1065	* this function to succeed.	901	* this function to succeed.
1066	*	902	*
1067	* If free_inventory is set, free inventory as well. Else drop items in	903	* If destroy_inventory is set, free inventory as well. Else drop items in
1068	* inventory to the ground.	904	* inventory to the ground.
1069	*/	905	*/
		906	void object::destroy (bool destroy_inventory)
		907	{
		908	if (QUERY_FLAG (this, FLAG_FREED))
		909	return;
1070		910
1071	void free_object(object *ob) {	911	if (QUERY_FLAG (this, FLAG_FRIENDLY))
1072	free_object2(ob, 0);	912	remove_friendly_object (this);
1073	}
1074	void free_object2(object *ob, int free_inventory) {
1075	object *tmp,*op;
1076		913
1077	if (object_free_callback)
1078	object_free_callback (ob);
1079
1080	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	914	if (!QUERY_FLAG (this, FLAG_REMOVED))
1081	LOG(llevDebug,"Free object called with non removed object\n");	915	remove ();
1082	dump_object(ob);	916
1083	#ifdef MANY_CORES	917	SET_FLAG (this, FLAG_FREED);
1084	abort();	918
1085	#endif	919	if (more)
1086	}	920	{
1087	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	921	more->destroy (destroy_inventory);
1088	LOG(llevMonster,"Warning: tried to free friendly object.\n");	922	more = 0;
1089	remove_friendly_object(ob);	923	}
		924
		925	if (inv)
1090	}	926	{
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 -	927	/* Only if the space blocks everything do we not process -
1102	* if some form of movemnt is allowed, let objects	928	* if some form of movement is allowed, let objects
1103	* drop on that space.	929	* drop on that space.
1104	*/	930	*/
1105	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	931	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))	932	{
1107	{	933	object *op = inv;
1108	op=ob->inv;	934
1109	while(op!=NULL) {	935	while (op)
1110	tmp=op->below;	936	{
1111	remove_ob(op);	937	object *tmp = op->below;
1112	free_object2(op, free_inventory);	938	op->destroy (destroy_inventory);
1113	op=tmp;	939	op = tmp;
		940	}
		941	}
		942	else
		943	{ /* Put objects in inventory onto this space */
		944	object *op = inv;
		945
		946	while (op)
		947	{
		948	object *tmp = op->below;
		949
		950	op->remove ();
		951
		952	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
		953	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
		954	op->destroy ();
		955	else
		956	{
		957	op->x = x;
		958	op->y = y;
		959	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
		960	}
		961
		962	op = tmp;
		963	}
		964	}
1114	}	965	}
1115	}	966
1116	else { /* Put objects in inventory onto this space */	967	// hack to ensure that freed objects still have a valid map
1117	op=ob->inv;	968	{
1118	while(op!=NULL) {	969	static maptile *freed_map; // freed objects are moved here to avoid crashes
1119	tmp=op->below;	970
1120	remove_ob(op);	971	if (!freed_map)
1121	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||	972	{
1122	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))	973	freed_map = new maptile;
1123	free_object(op);	974
1124	else {	975	freed_map->name = "/internal/freed_objects_map";
1125	op->x=ob->x;	976	freed_map->width = 3;
1126	op->y=ob->y;	977	freed_map->height = 3;
1127	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */	978
1128	}	979	freed_map->allocate ();
1129	op=tmp;
1130	}
1131	}
1132	}	980	}
		981
		982	map = freed_map;
		983	x = 1;
		984	y = 1;
		985	}
		986
		987	// clear those pointers that likely might have circular references to us
		988	owner = 0;
		989	enemy = 0;
		990	attacked_by = 0;
		991
		992	// only relevant for players(?), but make sure of it anyways
		993	contr = 0;
		994
1133	/* Remove object from the active list */	995	/* Remove object from the active list */
1134	ob->speed = 0;	996	speed = 0;
1135	update_ob_speed(ob);	997	update_ob_speed (this);
1136		998
1137	SET_FLAG(ob, FLAG_FREED);	999	unlink ();
1138	ob->count = 0;
1139		1000
1140	/* Remove this object from the list of used objects */	1001	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	}	1002	}
1225		1003
1226	/*	1004	/*
1227	* sub_weight() recursively (outwards) subtracts a number from the	1005	* sub_weight() recursively (outwards) subtracts a number from the
1228	* weight of an object (and what is carried by it's environment(s)).	1006	* weight of an object (and what is carried by it's environment(s)).
1229	*/	1007	*/
1230		1008	void
1231	void sub_weight (object *op, signed long weight) {	1009	sub_weight (object *op, signed long weight)
		1010	{
1232	while (op != NULL) {	1011	while (op != NULL)
		1012	{
1233	if (op->type == CONTAINER) {	1013	if (op->type == CONTAINER)
1234	weight=(signed long)(weight*(100-op->stats.Str)/100);	1014	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1235	}	1015
1236	op->carrying-=weight;	1016	op->carrying -= weight;
1237	op = op->env;	1017	op = op->env;
1238	}	1018	}
1239	}	1019	}
1240		1020
1241	/* remove_ob(op):	1021	/* op->remove ():
1242	* This function removes the object op from the linked list of objects	1022	* 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	1023	* which it is currently tied to. When this function is done, the
1244	* object will have no environment. If the object previously had an	1024	* object will have no environment. If the object previously had an
1245	* environment, the x and y coordinates will be updated to	1025	* environment, the x and y coordinates will be updated to
1246	* the previous environment.	1026	* the previous environment.
1247	* Beware: This function is called from the editor as well!	1027	* Beware: This function is called from the editor as well!
1248	*/	1028	*/
1249		1029	void
1250	void remove_ob(object *op) {	1030	object::remove ()
		1031	{
1251	object *tmp,*last=NULL;	1032	object *tmp, *last = 0;
1252	object *otmp;	1033	object *otmp;
1253	tag_t tag;	1034
1254	int check_walk_off;	1035	int check_walk_off;
1255	mapstruct *m;
1256	sint16 x,y;
1257
1258		1036
1259	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1037	if (QUERY_FLAG (this, FLAG_REMOVED))
1260	dump_object(op);	1038	return;
1261	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1262		1039
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);	1040	SET_FLAG (this, FLAG_REMOVED);
1279		1041
		1042	if (more)
		1043	more->remove ();
		1044
1280	/*	1045	/*
1281	* In this case, the object to be removed is in someones	1046	* In this case, the object to be removed is in someones
1282	* inventory.	1047	* inventory.
1283	*/	1048	*/
1284	if(op->env!=NULL) {	1049	if (env)
1285	if(op->nrof)	1050	{
		1051	if (nrof)
1286	sub_weight(op->env, op->weight*op->nrof);	1052	sub_weight (env, weight * nrof);
1287	else	1053	else
1288	sub_weight(op->env, op->weight+op->carrying);	1054	sub_weight (env, weight + carrying);
1289		1055
1290	/* NO_FIX_PLAYER is set when a great many changes are being	1056	/* NO_FIX_PLAYER is set when a great many changes are being
1291	* made to players inventory. If set, avoiding the call	1057	* made to players inventory. If set, avoiding the call
1292	* to save cpu time.	1058	* to save cpu time.
1293	*/	1059	*/
1294	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1060	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);	1061	fix_player (otmp);
1297		1062
1298	if(op->above!=NULL)	1063	if (above != NULL)
1299	op->above->below=op->below;	1064	above->below = below;
1300	else	1065	else
1301	op->env->inv=op->below;	1066	env->inv = below;
1302		1067
1303	if(op->below!=NULL)	1068	if (below != NULL)
1304	op->below->above=op->above;	1069	below->above = above;
1305		1070
1306	/* we set up values so that it could be inserted into	1071	/* we set up values so that it could be inserted into
1307	* the map, but we don't actually do that - it is up	1072	* the map, but we don't actually do that - it is up
1308	* to the caller to decide what we want to do.	1073	* to the caller to decide what we want to do.
1309	*/	1074	*/
1310	op->x=op->env->x,op->y=op->env->y;	1075	x = env->x, y = env->y;
1311	op->ox=op->x,op->oy=op->y;	1076	map = env->map;
1312	op->map=op->env->map;	1077	above = 0, below = 0;
1313	op->above=NULL,op->below=NULL;	1078	env = 0;
1314	op->env=NULL;	1079	}
1315	return;	1080	else if (map)
1316	}	1081	{
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	1082	/* Re did the following section of code - it looks like it had
1340	* lots of logic for things we no longer care about	1083	* lots of logic for things we no longer care about
1341	*/	1084	*/
1342		1085
1343	/* link the object above us */	1086	/* link the object above us */
1344	if (op->above)	1087	if (above)
1345	op->above->below=op->below;	1088	above->below = below;
1346	else	1089	else
1347	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */	1090	SET_MAP_TOP (map, x, y, below); /* we were top, set new top */
1348		1091
1349	/* Relink the object below us, if there is one */	1092	/* Relink the object below us, if there is one */
1350	if(op->below) {	1093	if (below)
1351	op->below->above=op->above;	1094	below->above = above;
1352	} else {	1095	else
		1096	{
1353	/* Nothing below, which means we need to relink map object for this space	1097	/* 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	1098	* use translated coordinates in case some oddness with map tiling is
1355	* evident	1099	* evident
1356	*/	1100	*/
1357	if(GET_MAP_OB(m,x,y)!=op) {	1101	if (GET_MAP_OB (map, x, y) != this)
1358	dump_object(op);	1102	{
		1103	char *dump = dump_object (this);
		1104	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);	1105	"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));	1106	free (dump);
1361	LOG(llevError,"%s\n",errmsg);	1107	dump = dump_object (GET_MAP_OB (map, x, y));
1362	}	1108	LOG (llevError, "%s\n", dump);
		1109	free (dump);
		1110	}
		1111
1363	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1112	SET_MAP_OB (map, x, y, above); /* goes on above it. */
1364	}	1113	}
1365	op->above=NULL;
1366	op->below=NULL;
1367		1114
		1115	above = 0;
		1116	below = 0;
		1117
1368	if (op->map->in_memory == MAP_SAVING)	1118	if (map->in_memory == MAP_SAVING)
1369	return;	1119	return;
1370		1120
1371	tag = op->count;
1372	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1121	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);
		1122
1373	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1123	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
		1124	{
1374	/* No point updating the players look faces if he is the object	1125	/* No point updating the players look faces if he is the object
1375	* being removed.	1126	* being removed.
1376	*/	1127	*/
1377		1128
1378	if(tmp->type==PLAYER && tmp!=op) {	1129	if (tmp->type == PLAYER && tmp != this)
		1130	{
1379	/* If a container that the player is currently using somehow gets	1131	/* If a container that the player is currently using somehow gets
1380	* removed (most likely destroyed), update the player view	1132	* removed (most likely destroyed), update the player view
1381	* appropriately.	1133	* appropriately.
1382	*/	1134	*/
1383	if (tmp->container==op) {	1135	if (tmp->container == this)
1384	CLEAR_FLAG(op, FLAG_APPLIED);	1136	{
1385	tmp->container=NULL;	1137	CLEAR_FLAG (this, FLAG_APPLIED);
1386	}	1138	tmp->container = 0;
1387	tmp->contr->socket.update_look=1;	1139	}
1388	}	1140
		1141	tmp->contr->socket->floorbox_update ();
		1142	}
		1143
1389	/* See if player moving off should effect something */	1144	/* See if player moving off should effect something */
1390	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1145	if (check_walk_off
		1146	&& ((move_type & tmp->move_off)
1391	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1147	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1148	{
		1149	move_apply (tmp, this, 0);
1392		1150
1393	move_apply(tmp, op, NULL);	1151	if (destroyed ())
1394	if (was_destroyed (op, tag)) {	1152	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 "	1153	}
1396	"leaving object\n", tmp->name, tmp->arch->name);
1397	}
1398	}
1399		1154
1400	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1155	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1401		1156
1402	if(tmp->above == tmp)	1157	if (tmp->above == tmp)
1403	tmp->above = NULL;	1158	tmp->above = 0;
1404	last=tmp;	1159
1405	}	1160	last = tmp;
		1161	}
		1162
1406	/* last == NULL of there are no objects on this space */	1163	/* last == NULL of there are no objects on this space */
1407	if (last==NULL) {	1164	if (!last)
		1165	{
1408	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1166	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1409	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1167	* 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	1168	* those out anyways, and if there are any flags set right now, they won't
1411	* be correct anyways.	1169	* be correct anyways.
1412	*/	1170	*/
1413	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);	1171	SET_MAP_FLAGS (map, x, y, P_NEED_UPDATE);
1414	update_position(op->map, op->x, op->y);	1172	update_position (map, x, y);
1415	}	1173	}
1416	else	1174	else
1417	update_object(last, UP_OBJ_REMOVE);	1175	update_object (last, UP_OBJ_REMOVE);
1418		1176
1419	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1177	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1420	update_all_los(op->map, op->x, op->y);	1178	update_all_los (map, x, y);
1421		1179	}
1422	}	1180	}
1423		1181
1424	/*	1182	/*
1425	* merge_ob(op,top):	1183	* merge_ob(op,top):
1426	*	1184	*
1427	* This function goes through all objects below and including top, and	1185	* This function goes through all objects below and including top, and
1428	* merges op to the first matching object.	1186	* merges op to the first matching object.
1429	* If top is NULL, it is calculated.	1187	* If top is NULL, it is calculated.
1430	* Returns pointer to object if it succeded in the merge, otherwise NULL	1188	* Returns pointer to object if it succeded in the merge, otherwise NULL
1431	*/	1189	*/
1432		1190	object *
1433	object *merge_ob(object *op, object *top) {	1191	merge_ob (object *op, object *top)
		1192	{
1434	if(!op->nrof)	1193	if (!op->nrof)
1435	return 0;	1194	return 0;
		1195
1436	if(top==NULL)	1196	if (top == NULL)
1437	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1197	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1198
1438	for(;top!=NULL;top=top->below) {	1199	for (; top != NULL; top = top->below)
		1200	{
1439	if(top==op)	1201	if (top == op)
1440	continue;	1202	continue;
1441	if (CAN_MERGE(op,top))	1203
1442	{	1204	if (object::can_merge (op, top))
		1205	{
1443	top->nrof+=op->nrof;	1206	top->nrof += op->nrof;
		1207
1444	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1208	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1445	op->weight = 0; /* Don't want any adjustements now */	1209	op->weight = 0; /* Don't want any adjustements now */
1446	remove_ob(op);	1210	op->destroy ();
1447	free_object(op);
1448	return top;	1211	return top;
1449	}	1212	}
1450	}	1213	}
		1214
1451	return NULL;	1215	return 0;
1452	}	1216	}
1453		1217
1454	/*	1218	/*
1455	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1219	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1456	* job preparing multi-part monsters	1220	* job preparing multi-part monsters
1457	*/	1221	*/
		1222	object *
1458	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1223	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1224	{
1459	object* tmp;	1225	object *tmp;
		1226
1460	if (op->head)	1227	if (op->head)
1461	op=op->head;	1228	op = op->head;
		1229
1462	for (tmp=op;tmp;tmp=tmp->more){	1230	for (tmp = op; tmp; tmp = tmp->more)
		1231	{
1463	tmp->x=x+tmp->arch->clone.x;	1232	tmp->x = x + tmp->arch->clone.x;
1464	tmp->y=y+tmp->arch->clone.y;	1233	tmp->y = y + tmp->arch->clone.y;
1465	}	1234	}
		1235
1466	return insert_ob_in_map (op, m, originator, flag);	1236	return insert_ob_in_map (op, m, originator, flag);
1467	}	1237	}
1468		1238
1469	/*	1239	/*
1470	* insert_ob_in_map (op, map, originator, flag):	1240	* insert_ob_in_map (op, map, originator, flag):
1471	* This function inserts the object in the two-way linked list	1241	* This function inserts the object in the two-way linked list
…		…
1485	* new object if 'op' was merged with other object	1255	* new object if 'op' was merged with other object
1486	* NULL if 'op' was destroyed	1256	* NULL if 'op' was destroyed
1487	* just 'op' otherwise	1257	* just 'op' otherwise
1488	*/	1258	*/
1489		1259
		1260	object *
1490	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1261	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1491	{	1262	{
1492	object *tmp, *top, *floor=NULL;	1263	object *tmp, *top, *floor = NULL;
1493	sint16 x,y;	1264	sint16 x, y;
1494		1265
1495	if (QUERY_FLAG (op, FLAG_FREED)) {	1266	if (QUERY_FLAG (op, FLAG_FREED))
		1267	{
1496	LOG (llevError, "Trying to insert freed object!\n");	1268	LOG (llevError, "Trying to insert freed object!\n");
1497	return NULL;	1269	return NULL;
		1270	}
		1271
		1272	if (m == NULL)
1498	}	1273	{
1499	if(m==NULL) {	1274	char *dump = dump_object (op);
1500	dump_object(op);
1501	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1275	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1502	return op;	1276	free (dump);
		1277	return op;
1503	}	1278	}
		1279
1504	if(out_of_map(m,op->x,op->y)) {	1280	if (out_of_map (m, op->x, op->y))
1505	dump_object(op);	1281	{
		1282	char *dump = dump_object (op);
1506	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1283	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1507	#ifdef MANY_CORES	1284	#ifdef MANY_CORES
1508	/* Better to catch this here, as otherwise the next use of this object	1285	/* 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	1286	* is likely to cause a crash. Better to find out where it is getting
1510	* improperly inserted.	1287	* improperly inserted.
1511	*/	1288	*/
1512	abort();	1289	abort ();
1513	#endif	1290	#endif
1514	return op;	1291	free (dump);
		1292	return op;
1515	}	1293	}
		1294
1516	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1295	if (!QUERY_FLAG (op, FLAG_REMOVED))
1517	dump_object(op);	1296	{
		1297	char *dump = dump_object (op);
1518	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1298	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1519	return op;	1299	free (dump);
		1300	return op;
1520	}	1301	}
		1302
1521	if(op->more!=NULL) {	1303	if (op->more != NULL)
		1304	{
1522	/* The part may be on a different map. */	1305	/* The part may be on a different map. */
1523		1306
1524	object *more = op->more;	1307	object *more = op->more;
1525		1308
1526	/* We really need the caller to normalize coordinates - if	1309	/* We really need the caller to normalize coordinates - if
1527	* we set the map, that doesn't work if the location is within	1310	* 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	1311	* a map and this is straddling an edge. So only if coordinate
1529	* is clear wrong do we normalize it.	1312	* is clear wrong do we normalize it.
1530	*/	1313	*/
1531	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1314	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);	1315	more->map = get_map_from_coord (m, &more->x, &more->y);
1536	} else if (!more->map) {	1316	else if (!more->map)
		1317	{
1537	/* For backwards compatibility - when not dealing with tiled maps,	1318	/* For backwards compatibility - when not dealing with tiled maps,
1538	* more->map should always point to the parent.	1319	* more->map should always point to the parent.
1539	*/	1320	*/
1540	more->map = m;	1321	more->map = m;
1541	}	1322	}
1542		1323
1543	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1324	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1325	{
1544	if ( ! op->head)	1326	if (!op->head)
1545	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1327	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1328
1546	return NULL;	1329	return NULL;
1547	}	1330	}
1548	}	1331	}
		1332
1549	CLEAR_FLAG(op,FLAG_REMOVED);	1333	CLEAR_FLAG (op, FLAG_REMOVED);
1550		1334
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	1335	/* 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	1336	* of areas of callers (eg, anything that uses find_free_spot would now
1557	* need extra work	1337	* need extra work
1558	*/	1338	*/
1559	op->map=get_map_from_coord(m, &op->x, &op->y);	1339	op->map = get_map_from_coord (m, &op->x, &op->y);
1560	x = op->x;	1340	x = op->x;
1561	y = op->y;	1341	y = op->y;
1562		1342
1563	/* this has to be done after we translate the coordinates.	1343	/* this has to be done after we translate the coordinates.
1564	*/	1344	*/
1565	if(op->nrof && !(flag & INS_NO_MERGE)) {	1345	if (op->nrof && !(flag & INS_NO_MERGE))
1566	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1346	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1567	if (CAN_MERGE(op,tmp)) {	1347	if (object::can_merge (op, tmp))
1568	op->nrof+=tmp->nrof;	1348	{
1569	remove_ob(tmp);	1349	op->nrof += tmp->nrof;
1570	free_object(tmp);	1350	tmp->destroy ();
1571	}	1351	}
1572	}
1573		1352
1574	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1353	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1575	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1354	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1355
1576	if (!QUERY_FLAG(op, FLAG_ALIVE))	1356	if (!QUERY_FLAG (op, FLAG_ALIVE))
1577	CLEAR_FLAG(op, FLAG_NO_STEAL);	1357	CLEAR_FLAG (op, FLAG_NO_STEAL);
1578		1358
1579	if (flag & INS_BELOW_ORIGINATOR) {	1359	if (flag & INS_BELOW_ORIGINATOR)
		1360	{
1580	if (originator->map != op->map || originator->x != op->x ||	1361	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1581	originator->y != op->y) {	1362	{
1582	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1363	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1583	abort();	1364	abort ();
1584	}	1365	}
		1366
1585	op->above = originator;	1367	op->above = originator;
1586	op->below = originator->below;	1368	op->below = originator->below;
1587	if (op->below) op->below->above = op;	1369
		1370	if (op->below)
		1371	op->below->above = op;
		1372	else
1588	else SET_MAP_OB(op->map, op->x, op->y, op);	1373	SET_MAP_OB (op->map, op->x, op->y, op);
		1374
1589	/* since *below* originator, no need to update top */	1375	/* since *below* originator, no need to update top */
1590	originator->below = op;	1376	originator->below = op;
1591	} else {	1377	}
		1378	else
		1379	{
1592	/* If there are other objects, then */	1380	/* If there are other objects, then */
1593	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1381	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1382	{
1594	object *last=NULL;	1383	object *last = NULL;
1595	/*	1384
		1385	/*
1596	* If there are multiple objects on this space, we do some trickier handling.	1386	* If there are multiple objects on this space, we do some trickier handling.
1597	* We've already dealt with merging if appropriate.	1387	* We've already dealt with merging if appropriate.
1598	* Generally, we want to put the new object on top. But if	1388	* Generally, we want to put the new object on top. But if
1599	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1389	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1600	* floor, we want to insert above that and no further.	1390	* floor, we want to insert above that and no further.
1601	* Also, if there are spell objects on this space, we stop processing	1391	* 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	1392	* 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	1393	* 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	1394	* when lots of spells are cast in one area. Currently, it is presumed
1605	* that flying non pickable objects are spell objects.	1395	* that flying non pickable objects are spell objects.
1606	*/	1396	*/
1607		1397
1608	while (top != NULL) {	1398	while (top != NULL)
1609	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||	1399	{
1610	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;	1400	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1611	if (QUERY_FLAG(top, FLAG_NO_PICK)	1401	floor = top;
1612	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))	1402
1613	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))	1403	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1614	{	1404	{
1615	/* We insert above top, so we want this object below this */	1405	/* We insert above top, so we want this object below this */
1616	top=top->below;	1406	top = top->below;
1617	break;	1407	break;
1618	}	1408	}
1619	last = top;	1409
1620	top = top->above;	1410	last = top;
1621	}	1411	top = top->above;
		1412	}
		1413
1622	/* Don't want top to be NULL, so set it to the last valid object */	1414	/* Don't want top to be NULL, so set it to the last valid object */
1623	top = last;	1415	top = last;
1624		1416
1625	/* We let update_position deal with figuring out what the space	1417	/* We let update_position deal with figuring out what the space
1626	* looks like instead of lots of conditions here.	1418	* looks like instead of lots of conditions here.
1627	* makes things faster, and effectively the same result.	1419	* makes things faster, and effectively the same result.
1628	*/	1420	*/
1629		1421
1630	/* Have object 'fall below' other objects that block view.	1422	/* Have object 'fall below' other objects that block view.
1631	* Unless those objects are exits, type 66	1423	* Unless those objects are exits, type 66
1632	* If INS_ON_TOP is used, don't do this processing	1424	* If INS_ON_TOP is used, don't do this processing
1633	* Need to find the object that in fact blocks view, otherwise	1425	* Need to find the object that in fact blocks view, otherwise
1634	* stacking is a bit odd.	1426	* stacking is a bit odd.
1635	*/	1427	*/
1636	if (!(flag & INS_ON_TOP) &&	1428	if (!(flag & INS_ON_TOP) &&
1637	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1429	(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)) {	1430	{
1639	for (last=top; last != floor; last=last->below)	1431	for (last = top; last != floor; last = last->below)
1640	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1432	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1433	break;
1641	/* Check to see if we found the object that blocks view,	1434	/* Check to see if we found the object that blocks view,
1642	* and make sure we have a below pointer for it so that	1435	* and make sure we have a below pointer for it so that
1643	* we can get inserted below this one, which requires we	1436	* we can get inserted below this one, which requires we
1644	* set top to the object below us.	1437	* set top to the object below us.
1645	*/	1438	*/
1646	if (last && last->below && last != floor) top=last->below;	1439	if (last && last->below && last != floor)
1647	}	1440	top = last->below;
1648	} /* If objects on this space */	1441	}
		1442	} /* If objects on this space */
		1443
1649	if (flag & INS_MAP_LOAD)	1444	if (flag & INS_MAP_LOAD)
1650	top = GET_MAP_TOP(op->map,op->x,op->y);	1445	top = GET_MAP_TOP (op->map, op->x, op->y);
		1446
1651	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1447	if (flag & INS_ABOVE_FLOOR_ONLY)
		1448	top = floor;
1652		1449
1653	/* Top is the object that our object (op) is going to get inserted above.	1450	/* Top is the object that our object (op) is going to get inserted above.
1654	*/	1451	*/
1655		1452
1656	/* First object on this space */	1453	/* First object on this space */
1657	if (!top) {	1454	if (!top)
		1455	{
1658	op->above = GET_MAP_OB(op->map, op->x, op->y);	1456	op->above = GET_MAP_OB (op->map, op->x, op->y);
1659	if (op->above) op->above->below = op;	1457
		1458	if (op->above)
		1459	op->above->below = op;
		1460
1660	op->below = NULL;	1461	op->below = NULL;
1661	SET_MAP_OB(op->map, op->x, op->y, op);	1462	SET_MAP_OB (op->map, op->x, op->y, op);
1662	} else { /* get inserted into the stack above top */	1463	}
		1464	else
		1465	{ /* get inserted into the stack above top */
1663	op->above = top->above;	1466	op->above = top->above;
1664	if (op->above) op->above->below = op;	1467
		1468	if (op->above)
		1469	op->above->below = op;
		1470
1665	op->below = top;	1471	op->below = top;
1666	top->above = op;	1472	top->above = op;
1667	}	1473	}
		1474
1668	if (op->above==NULL)	1475	if (op->above == NULL)
1669	SET_MAP_TOP(op->map,op->x, op->y, op);	1476	SET_MAP_TOP (op->map, op->x, op->y, op);
1670	} /* else not INS_BELOW_ORIGINATOR */	1477	} /* else not INS_BELOW_ORIGINATOR */
1671		1478
1672	if(op->type==PLAYER)	1479	if (op->type == PLAYER)
1673	op->contr->do_los=1;	1480	op->contr->do_los = 1;
1674		1481
1675	/* If we have a floor, we know the player, if any, will be above	1482	/* 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.	1483	* it, so save a few ticks and start from there.
1677	*/	1484	*/
1678	if (!(flag & INS_MAP_LOAD))	1485	if (!(flag & INS_MAP_LOAD))
1679	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1486	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1680	if (tmp->type == PLAYER)	1487	if (tmp->type == PLAYER)
1681	tmp->contr->socket.update_look=1;	1488	tmp->contr->socket->floorbox_update ();
1682	}
1683		1489
1684	/* If this object glows, it may affect lighting conditions that are	1490	/* If this object glows, it may affect lighting conditions that are
1685	* visible to others on this map. But update_all_los is really	1491	* 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	1492	* 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	1493	* on the map will get recalculated. The players could very well
1688	* be far away from this change and not affected in any way -	1494	* be far away from this change and not affected in any way -
1689	* this should get redone to only look for players within range,	1495	* this should get redone to only look for players within range,
1690	* or just updating the P_NEED_UPDATE for spaces within this area	1496	* or just updating the P_NEED_UPDATE for spaces within this area
1691	* of effect may be sufficient.	1497	* of effect may be sufficient.
1692	*/	1498	*/
1693	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1499	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
1694	update_all_los(op->map, op->x, op->y);	1500	update_all_los (op->map, op->x, op->y);
1695		1501
1696
1697	/* updates flags (blocked, alive, no magic, etc) for this map space */	1502	/* updates flags (blocked, alive, no magic, etc) for this map space */
1698	update_object(op,UP_OBJ_INSERT);	1503	update_object (op, UP_OBJ_INSERT);
1699		1504
1700
1701	/* Don't know if moving this to the end will break anything. However,	1505	/* 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.	1506	* we want to have floorbox_update called before calling this.
1703	*	1507	*
1704	* check_move_on() must be after this because code called from	1508	* check_move_on() must be after this because code called from
1705	* check_move_on() depends on correct map flags (so functions like	1509	* check_move_on() depends on correct map flags (so functions like
1706	* blocked() and wall() work properly), and these flags are updated by	1510	* blocked() and wall() work properly), and these flags are updated by
1707	* update_object().	1511	* update_object().
1708	*/	1512	*/
1709		1513
1710	/* if this is not the head or flag has been passed, don't check walk on status */	1514	/* 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) {	1515	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1516	{
1713	if (check_move_on(op, originator))	1517	if (check_move_on (op, originator))
1714	return NULL;	1518	return NULL;
1715		1519
1716	/* If we are a multi part object, lets work our way through the check	1520	/* If we are a multi part object, lets work our way through the check
1717	* walk on's.	1521	* walk on's.
1718	*/	1522	*/
1719	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1523	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1720	if (check_move_on (tmp, originator))	1524	if (check_move_on (tmp, originator))
1721	return NULL;	1525	return NULL;
1722	}	1526	}
		1527
1723	return op;	1528	return op;
1724	}	1529	}
1725		1530
1726	/* this function inserts an object in the map, but if it	1531	/* 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.	1532	* 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.	1533	* op is the object to insert it under: supplies x and the map.
1729	*/	1534	*/
		1535	void
1730	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1536	replace_insert_ob_in_map (const char *arch_string, object *op)
		1537	{
1731	object *tmp;	1538	object *
1732	object *tmp1;	1539	tmp;
		1540	object *
		1541	tmp1;
1733		1542
1734	/* first search for itself and remove any old instances */	1543	/* first search for itself and remove any old instances */
1735		1544
1736	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1545	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 */ {	1546	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1738	remove_ob(tmp);	1547	tmp->destroy ();
1739	free_object(tmp);
1740	}
1741	}
1742		1548
1743	tmp1=arch_to_object(find_archetype(arch_string));	1549	tmp1 = arch_to_object (archetype::find (arch_string));
1744		1550
1745		1551	tmp1->x = op->x;
1746	tmp1->x = op->x; tmp1->y = op->y;	1552	tmp1->y = op->y;
1747	insert_ob_in_map(tmp1,op->map,op,0);	1553	insert_ob_in_map (tmp1, op->map, op, 0);
1748	}	1554	}
1749		1555
1750	/*	1556	/*
1751	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1557	* 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	1558	* is returned contains nr objects, and the remaining parts contains
1753	* the rest (or is removed and freed if that number is 0).	1559	* the rest (or is removed and freed if that number is 0).
1754	* On failure, NULL is returned, and the reason put into the	1560	* On failure, NULL is returned, and the reason put into the
1755	* global static errmsg array.	1561	* global static errmsg array.
1756	*/	1562	*/
1757		1563
		1564	object *
1758	object *get_split_ob(object *orig_ob, uint32 nr) {	1565	get_split_ob (object *orig_ob, uint32 nr)
		1566	{
1759	object *newob;	1567	object *newob;
1760	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1568	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1761		1569
1762	if(orig_ob->nrof<nr) {	1570	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	}	1571	{
		1572	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
		1573	return NULL;
		1574	}
		1575
1767	newob = object_create_clone(orig_ob);	1576	newob = object_create_clone (orig_ob);
		1577
1768	if((orig_ob->nrof-=nr)<1) {	1578	if ((orig_ob->nrof -= nr) < 1)
1769	if ( ! is_removed)	1579	orig_ob->destroy (1);
1770	remove_ob(orig_ob);
1771	free_object2(orig_ob, 1);
1772	}
1773	else if ( ! is_removed) {	1580	else if (!is_removed)
		1581	{
1774	if(orig_ob->env!=NULL)	1582	if (orig_ob->env != NULL)
1775	sub_weight (orig_ob->env,orig_ob->weight*nr);	1583	sub_weight (orig_ob->env, orig_ob->weight * nr);
1776	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1584	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1585	{
1777	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1586	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");	1587	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1780	return NULL;	1588	return NULL;
1781	}	1589	}
1782	}	1590	}
		1591
1783	newob->nrof=nr;	1592	newob->nrof = nr;
1784		1593
1785	return newob;	1594	return newob;
1786	}	1595	}
1787		1596
1788	/*	1597	/*
1789	* decrease_ob_nr(object, number) decreases a specified number from	1598	* decrease_ob_nr(object, number) decreases a specified number from
1790	* the amount of an object. If the amount reaches 0, the object	1599	* the amount of an object. If the amount reaches 0, the object
1791	* is subsequently removed and freed.	1600	* is subsequently removed and freed.
1792	*	1601	*
1793	* Return value: 'op' if something is left, NULL if the amount reached 0	1602	* Return value: 'op' if something is left, NULL if the amount reached 0
1794	*/	1603	*/
1795		1604
		1605	object *
1796	object *decrease_ob_nr (object *op, uint32 i)	1606	decrease_ob_nr (object *op, uint32 i)
1797	{	1607	{
1798	object *tmp;	1608	object *tmp;
1799	player *pl;	1609	player *pl;
1800		1610
1801	if (i == 0) /* objects with op->nrof require this check */	1611	if (i == 0) /* objects with op->nrof require this check */
1802	return op;	1612	return op;
1803		1613
1804	if (i > op->nrof)	1614	if (i > op->nrof)
1805	i = op->nrof;	1615	i = op->nrof;
1806		1616
1807	if (QUERY_FLAG (op, FLAG_REMOVED))	1617	if (QUERY_FLAG (op, FLAG_REMOVED))
		1618	op->nrof -= i;
		1619	else if (op->env)
		1620	{
		1621	/* is this object in the players inventory, or sub container
		1622	* therein?
		1623	*/
		1624	tmp = is_player_inv (op->env);
		1625	/* nope. Is this a container the player has opened?
		1626	* If so, set tmp to that player.
		1627	* IMO, searching through all the players will mostly
		1628	* likely be quicker than following op->env to the map,
		1629	* and then searching the map for a player.
		1630	*/
		1631	if (!tmp)
		1632	{
		1633	for (pl = first_player; pl; pl = pl->next)
		1634	if (pl->ob->container == op->env)
		1635	{
		1636	tmp = pl->ob;
		1637	break;
		1638	}
		1639	}
		1640
		1641	if (i < op->nrof)
		1642	{
		1643	sub_weight (op->env, op->weight * i);
		1644	op->nrof -= i;
		1645	if (tmp)
		1646	esrv_send_item (tmp, op);
		1647	}
		1648	else
		1649	{
		1650	op->remove ();
		1651	op->nrof = 0;
		1652	if (tmp)
		1653	esrv_del_item (tmp->contr, op->count);
		1654	}
1808	{	1655	}
		1656	else
		1657	{
		1658	object *above = op->above;
		1659
		1660	if (i < op->nrof)
1809	op->nrof -= i;	1661	op->nrof -= i;
1810	}	1662	else
1811	else if (op->env != NULL)	1663	{
1812	{	1664	op->remove ();
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;	1665	op->nrof = 0;
		1666	}
		1667
		1668	/* Since we just removed op, op->above is null */
		1669	for (tmp = above; tmp; tmp = tmp->above)
		1670	if (tmp->type == PLAYER)
		1671	{
1833	if (tmp) {	1672	if (op->nrof)
1834	esrv_send_item(tmp, op);	1673	esrv_send_item (tmp, op);
1835	}	1674	else
1836	} else {
1837	remove_ob (op);
1838	op->nrof = 0;
1839	if (tmp) {
1840	esrv_del_item(tmp->contr, op->count);	1675	esrv_del_item (tmp->contr, op->count);
1841	}	1676	}
1842	}
1843	}
1844	else
1845	{	1677	}
1846	object *above = op->above;
1847		1678
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 */
1855	for (tmp = above; tmp != NULL; tmp = tmp->above)
1856	if (tmp->type == PLAYER) {
1857	if (op->nrof)
1858	esrv_send_item(tmp, op);
1859	else
1860	esrv_del_item(tmp->contr, op->count);
1861	}
1862	}
1863
1864	if (op->nrof) {	1679	if (op->nrof)
1865	return op;	1680	return op;
1866	} else {	1681	else
1867	free_object (op);	1682	{
		1683	op->destroy ();
1868	return NULL;	1684	return 0;
1869	}	1685	}
1870	}	1686	}
1871		1687
1872	/*	1688	/*
1873	* add_weight(object, weight) adds the specified weight to an object,	1689	* add_weight(object, weight) adds the specified weight to an object,
1874	* and also updates how much the environment(s) is/are carrying.	1690	* and also updates how much the environment(s) is/are carrying.
1875	*/	1691	*/
1876		1692
		1693	void
1877	void add_weight (object *op, signed long weight) {	1694	add_weight (object *op, signed long weight)
		1695	{
1878	while (op!=NULL) {	1696	while (op != NULL)
		1697	{
1879	if (op->type == CONTAINER) {	1698	if (op->type == CONTAINER)
1880	weight=(signed long)(weight*(100-op->stats.Str)/100);	1699	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1881	}	1700
1882	op->carrying+=weight;	1701	op->carrying += weight;
1883	op=op->env;	1702	op = op->env;
1884	}	1703	}
1885	}	1704	}
1886		1705
		1706	object *
		1707	insert_ob_in_ob (object *op, object *where)
		1708	{
		1709	if (!where)
		1710	{
		1711	char *dump = dump_object (op);
		1712	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1713	free (dump);
		1714	return op;
		1715	}
		1716
		1717	if (where->head)
		1718	{
		1719	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1720	where = where->head;
		1721	}
		1722
		1723	return where->insert (op);
		1724	}
		1725
1887	/*	1726	/*
1888	* insert_ob_in_ob(op,environment):	1727	* env->insert (op)
1889	* This function inserts the object op in the linked list	1728	* This function inserts the object op in the linked list
1890	* inside the object environment.	1729	* inside the object environment.
1891	*	1730	*
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	1731	* The function returns now pointer to inserted item, and return value can
1898	* be != op, if items are merged. -Tero	1732	* be != op, if items are merged. -Tero
1899	*/	1733	*/
1900		1734
1901	object *insert_ob_in_ob(object *op,object *where) {	1735	object *
		1736	object::insert (object *op)
		1737	{
1902	object *tmp, *otmp;	1738	object *tmp, *otmp;
1903		1739
1904	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1740	if (!QUERY_FLAG (op, FLAG_REMOVED))
1905	dump_object(op);	1741	op->remove ();
1906	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1742
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) {	1743	if (op->more)
		1744	{
1920	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1745	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1921	op->name, op->count);
1922	return op;	1746	return op;
1923	}	1747	}
		1748
1924	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1749	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1925	CLEAR_FLAG(op, FLAG_REMOVED);	1750	CLEAR_FLAG (op, FLAG_REMOVED);
1926	if(op->nrof) {	1751	if (op->nrof)
		1752	{
1927	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1753	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1928	if ( CAN_MERGE(tmp,op) ) {	1754	if (object::can_merge (tmp, op))
		1755	{
1929	/* return the original object and remove inserted object	1756	/* return the original object and remove inserted object
1930	(client needs the original object) */	1757	(client needs the original object) */
1931	tmp->nrof += op->nrof;	1758	tmp->nrof += op->nrof;
1932	/* Weight handling gets pretty funky. Since we are adding to	1759	/* Weight handling gets pretty funky. Since we are adding to
1933	* tmp->nrof, we need to increase the weight.	1760	* tmp->nrof, we need to increase the weight.
1934	*/	1761	*/
1935	add_weight (where, op->weight*op->nrof);	1762	add_weight (this, op->weight * op->nrof);
1936	SET_FLAG(op, FLAG_REMOVED);	1763	SET_FLAG (op, FLAG_REMOVED);
1937	free_object(op); /* free the inserted object */	1764	op->destroy (); /* free the inserted object */
1938	op = tmp;	1765	op = tmp;
1939	remove_ob (op); /* and fix old object's links */	1766	op->remove (); /* and fix old object's links */
1940	CLEAR_FLAG(op, FLAG_REMOVED);	1767	CLEAR_FLAG (op, FLAG_REMOVED);
1941	break;	1768	break;
1942	}	1769	}
1943		1770
1944	/* I assume combined objects have no inventory	1771	/* I assume combined objects have no inventory
1945	* We add the weight - this object could have just been removed	1772	* We add the weight - this object could have just been removed
1946	* (if it was possible to merge). calling remove_ob will subtract	1773	* (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	1774	* the weight, so we need to add it in again, since we actually do
1948	* the linking below	1775	* the linking below
1949	*/	1776	*/
1950	add_weight (where, op->weight*op->nrof);	1777	add_weight (this, op->weight * op->nrof);
		1778	}
1951	} else	1779	else
1952	add_weight (where, (op->weight+op->carrying));	1780	add_weight (this, (op->weight + op->carrying));
1953		1781
1954	otmp=is_player_inv(where);	1782	otmp = is_player_inv (this);
1955	if (otmp&&otmp->contr!=NULL) {	1783	if (otmp && otmp->contr)
1956	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1784	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1957	fix_player(otmp);	1785	fix_player (otmp);
1958	}
1959		1786
1960	op->map=NULL;	1787	op->map = NULL;
1961	op->env=where;	1788	op->env = this;
1962	op->above=NULL;	1789	op->above = NULL;
1963	op->below=NULL;	1790	op->below = NULL;
1964	op->x=0,op->y=0;	1791	op->x = 0, op->y = 0;
1965	op->ox=0,op->oy=0;
1966		1792
1967	/* reset the light list and los of the players on the map */	1793	/* reset the light list and los of the players on the map */
1968	if((op->glow_radius!=0)&&where->map)	1794	if ((op->glow_radius != 0) && map)
1969	{	1795	{
1970	#ifdef DEBUG_LIGHTS	1796	#ifdef DEBUG_LIGHTS
1971	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1797	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1972	op->name);
1973	#endif /* DEBUG_LIGHTS */	1798	#endif /* DEBUG_LIGHTS */
1974	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1799	if (MAP_DARKNESS (map))
		1800	update_all_los (map, x, y);
1975	}	1801	}
1976		1802
1977	/* Client has no idea of ordering so lets not bother ordering it here.	1803	/* Client has no idea of ordering so lets not bother ordering it here.
1978	* It sure simplifies this function...	1804	* It sure simplifies this function...
1979	*/	1805	*/
1980	if (where->inv==NULL)	1806	if (!inv)
1981	where->inv=op;	1807	inv = op;
1982	else {	1808	else
		1809	{
1983	op->below = where->inv;	1810	op->below = inv;
1984	op->below->above = op;	1811	op->below->above = op;
1985	where->inv = op;	1812	inv = op;
1986	}	1813	}
		1814
1987	return op;	1815	return op;
1988	}	1816	}
1989		1817
1990	/*	1818	/*
1991	* Checks if any objects has a move_type that matches objects	1819	* 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	1834	* 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	1835	* object being inserted. insert_ob_in_map may not put new objects
2008	* on top.	1836	* on top.
2009	*/	1837	*/
2010		1838
		1839	int
2011	int check_move_on (object *op, object *originator)	1840	check_move_on (object *op, object *originator)
2012	{	1841	{
2013	object *tmp;	1842	object *tmp;
2014	tag_t tag;
2015	mapstruct *m=op->map;	1843	maptile *m = op->map;
2016	int x=op->x, y=op->y;	1844	int x = op->x, y = op->y;
		1845
2017	MoveType move_on, move_slow, move_block;	1846	MoveType move_on, move_slow, move_block;
2018		1847
2019	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1848	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;	1849	return 0;
		1850
		1851	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1852	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		1853	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		1854
		1855	/* if nothing on this space will slow op down or be applied,
		1856	* no need to do checking below. have to make sure move_type
		1857	* is set, as lots of objects don't have it set - we treat that
		1858	* as walking.
		1859	*/
		1860	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		1861	return 0;
		1862
		1863	/* This is basically inverse logic of that below - basically,
		1864	* if the object can avoid the move on or slow move, they do so,
		1865	* but can't do it if the alternate movement they are using is
		1866	* blocked. Logic on this seems confusing, but does seem correct.
		1867	*/
		1868	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		1869	return 0;
		1870
		1871	/* The objects have to be checked from top to bottom.
		1872	* Hence, we first go to the top:
		1873	*/
		1874
		1875	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
		1876	{
		1877	/* Trim the search when we find the first other spell effect
		1878	* this helps performance so that if a space has 50 spell objects,
		1879	* we don't need to check all of them.
		1880	*/
		1881	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1882	break;
		1883	}
		1884
		1885	for (; tmp; tmp = tmp->below)
		1886	{
		1887	if (tmp == op)
		1888	continue; /* Can't apply yourself */
		1889
		1890	/* Check to see if one of the movement types should be slowed down.
		1891	* Second check makes sure that the movement types not being slowed
		1892	* (~slow_move) is not blocked on this space - just because the
		1893	* space doesn't slow down swimming (for example), if you can't actually
		1894	* swim on that space, can't use it to avoid the penalty.
		1895	*/
		1896	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1897	{
		1898	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		1899	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1900	{
		1901
		1902	float
		1903	diff = tmp->move_slow_penalty * FABS (op->speed);
		1904
		1905	if (op->type == PLAYER)
		1906	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		1907	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		1908	diff /= 4.0;
		1909
		1910	op->speed_left -= diff;
		1911	}
		1912	}
		1913
		1914	/* Basically same logic as above, except now for actual apply. */
		1915	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		1916	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		1917	{
		1918	move_apply (tmp, op, originator);
		1919
		1920	if (op->destroyed ())
		1921	return 1;
		1922
		1923	/* what the person/creature stepped onto has moved the object
		1924	* someplace new. Don't process any further - if we did,
		1925	* have a feeling strange problems would result.
		1926	*/
		1927	if (op->map != m || op->x != x || op->y != y)
		1928	return 0;
		1929	}
		1930	}
		1931
		1932	return 0;
2100	}	1933	}
2101		1934
2102	/*	1935	/*
2103	* present_arch(arch, map, x, y) searches for any objects with	1936	* present_arch(arch, map, x, y) searches for any objects with
2104	* a matching archetype at the given map and coordinates.	1937	* a matching archetype at the given map and coordinates.
2105	* The first matching object is returned, or NULL if none.	1938	* The first matching object is returned, or NULL if none.
2106	*/	1939	*/
2107		1940
		1941	object *
2108	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1942	present_arch (const archetype *at, maptile *m, int x, int y)
		1943	{
2109	object *tmp;	1944	object *
		1945	tmp;
		1946
2110	if(m==NULL || out_of_map(m,x,y)) {	1947	if (m == NULL || out_of_map (m, x, y))
		1948	{
2111	LOG(llevError,"Present_arch called outside map.\n");	1949	LOG (llevError, "Present_arch called outside map.\n");
2112	return NULL;	1950	return NULL;
2113	}	1951	}
2114	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1952	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2115	if(tmp->arch == at)	1953	if (tmp->arch == at)
2116	return tmp;	1954	return tmp;
2117	return NULL;	1955	return NULL;
2118	}	1956	}
2119		1957
2120	/*	1958	/*
2121	* present(type, map, x, y) searches for any objects with	1959	* present(type, map, x, y) searches for any objects with
2122	* a matching type variable at the given map and coordinates.	1960	* a matching type variable at the given map and coordinates.
2123	* The first matching object is returned, or NULL if none.	1961	* The first matching object is returned, or NULL if none.
2124	*/	1962	*/
2125		1963
		1964	object *
2126	object *present(unsigned char type,mapstruct *m, int x,int y) {	1965	present (unsigned char type, maptile *m, int x, int y)
		1966	{
2127	object *tmp;	1967	object *
		1968	tmp;
		1969
2128	if(out_of_map(m,x,y)) {	1970	if (out_of_map (m, x, y))
		1971	{
2129	LOG(llevError,"Present called outside map.\n");	1972	LOG (llevError, "Present called outside map.\n");
2130	return NULL;	1973	return NULL;
2131	}	1974	}
2132	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1975	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2133	if(tmp->type==type)	1976	if (tmp->type == type)
2134	return tmp;	1977	return tmp;
2135	return NULL;	1978	return NULL;
2136	}	1979	}
2137		1980
2138	/*	1981	/*
2139	* present_in_ob(type, object) searches for any objects with	1982	* present_in_ob(type, object) searches for any objects with
2140	* a matching type variable in the inventory of the given object.	1983	* a matching type variable in the inventory of the given object.
2141	* The first matching object is returned, or NULL if none.	1984	* The first matching object is returned, or NULL if none.
2142	*/	1985	*/
2143		1986
		1987	object *
2144	object *present_in_ob(unsigned char type, const object *op) {	1988	present_in_ob (unsigned char type, const object *op)
		1989	{
2145	object *tmp;	1990	object *
		1991	tmp;
		1992
2146	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1993	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2147	if(tmp->type==type)	1994	if (tmp->type == type)
2148	return tmp;	1995	return tmp;
2149	return NULL;	1996	return NULL;
2150	}	1997	}
2151		1998
2152	/*	1999	/*
…		…
2162	* the object name, not the archetype name. this is so that the	2009	* 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	2010	* spell code can use one object type (force), but change it's name
2164	* to be unique.	2011	* to be unique.
2165	*/	2012	*/
2166		2013
		2014	object *
2167	object *present_in_ob_by_name(int type, const char *str, const object *op) {	2015	present_in_ob_by_name (int type, const char *str, const object *op)
		2016	{
2168	object *tmp;	2017	object *
		2018	tmp;
2169		2019
2170	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	2020	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2021	{
2171	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	2022	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2172	return tmp;	2023	return tmp;
2173	}	2024	}
2174	return NULL;	2025	return NULL;
2175	}	2026	}
2176		2027
2177	/*	2028	/*
2178	* present_arch_in_ob(archetype, object) searches for any objects with	2029	* present_arch_in_ob(archetype, object) searches for any objects with
2179	* a matching archetype in the inventory of the given object.	2030	* a matching archetype in the inventory of the given object.
2180	* The first matching object is returned, or NULL if none.	2031	* The first matching object is returned, or NULL if none.
2181	*/	2032	*/
2182		2033
		2034	object *
2183	object *present_arch_in_ob(const archetype *at, const object *op) {	2035	present_arch_in_ob (const archetype *at, const object *op)
		2036	{
2184	object *tmp;	2037	object *
		2038	tmp;
		2039
2185	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2040	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2186	if( tmp->arch == at)	2041	if (tmp->arch == at)
2187	return tmp;	2042	return tmp;
2188	return NULL;	2043	return NULL;
2189	}	2044	}
2190		2045
2191	/*	2046	/*
2192	* activate recursively a flag on an object inventory	2047	* activate recursively a flag on an object inventory
2193	*/	2048	*/
		2049	void
2194	void flag_inv(object*op, int flag){	2050	flag_inv (object *op, int flag)
		2051	{
2195	object *tmp;	2052	object *
		2053	tmp;
		2054
2196	if(op->inv)	2055	if (op->inv)
2197	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2056	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2057	{
2198	SET_FLAG(tmp, flag);	2058	SET_FLAG (tmp, flag);
2199	flag_inv(tmp,flag);	2059	flag_inv (tmp, flag);
2200	}	2060	}
2201	}/*	2061	} /*
2202	* desactivate recursively a flag on an object inventory	2062	* desactivate recursively a flag on an object inventory
2203	*/	2063	*/
		2064	void
2204	void unflag_inv(object*op, int flag){	2065	unflag_inv (object *op, int flag)
		2066	{
2205	object *tmp;	2067	object *
		2068	tmp;
		2069
2206	if(op->inv)	2070	if (op->inv)
2207	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2071	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2072	{
2208	CLEAR_FLAG(tmp, flag);	2073	CLEAR_FLAG (tmp, flag);
2209	unflag_inv(tmp,flag);	2074	unflag_inv (tmp, flag);
2210	}	2075	}
2211	}	2076	}
2212		2077
2213	/*	2078	/*
2214	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	2079	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2215	* all it's inventory (recursively).	2080	* all it's inventory (recursively).
2216	* If checksums are used, a player will get set_cheat called for	2081	* 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.	2082	* him/her-self and all object carried by a call to this function.
2218	*/	2083	*/
2219		2084
		2085	void
2220	void set_cheat(object *op) {	2086	set_cheat (object *op)
		2087	{
2221	SET_FLAG(op, FLAG_WAS_WIZ);	2088	SET_FLAG (op, FLAG_WAS_WIZ);
2222	flag_inv(op, FLAG_WAS_WIZ);	2089	flag_inv (op, FLAG_WAS_WIZ);
2223	}	2090	}
2224		2091
2225	/*	2092	/*
2226	* find_free_spot(object, map, x, y, start, stop) will search for	2093	* 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	2094	* 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	2109	* 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	2110	* the archetype because that isn't correct if the monster has been
2244	* customized, changed states, etc.	2111	* customized, changed states, etc.
2245	*/	2112	*/
2246		2113
		2114	int
2247	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2115	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2116	{
		2117	int
		2118	i,
2248	int i,index=0, flag;	2119	index = 0, flag;
		2120	static int
2249	static int altern[SIZEOFFREE];	2121	altern[SIZEOFFREE];
2250		2122
2251	for(i=start;i<stop;i++) {	2123	for (i = start; i < stop; i++)
		2124	{
2252	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2125	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2253	if(!flag)	2126	if (!flag)
2254	altern[index++]=i;	2127	altern[index++] = i;
2255		2128
2256	/* Basically, if we find a wall on a space, we cut down the search size.	2129	/* 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.	2130	* 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 -	2131	* 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	2132	* 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	2133	* spaces in all the other directions, this will reduce the search space
2261	* to only the spaces immediately surrounding the target area, and	2134	* to only the spaces immediately surrounding the target area, and
2262	* won't look 2 spaces south of the target space.	2135	* won't look 2 spaces south of the target space.
2263	*/	2136	*/
2264	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2137	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)
2265	stop=maxfree[i];	2138	stop = maxfree[i];
2266	}	2139	}
2267	if(!index) return -1;	2140	if (!index)
		2141	return -1;
2268	return altern[RANDOM()%index];	2142	return altern[RANDOM () % index];
2269	}	2143	}
2270		2144
2271	/*	2145	/*
2272	* find_first_free_spot(archetype, mapstruct, x, y) works like	2146	* find_first_free_spot(archetype, maptile, x, y) works like
2273	* find_free_spot(), but it will search max number of squares.	2147	* find_free_spot(), but it will search max number of squares.
2274	* But it will return the first available spot, not a random choice.	2148	* 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.	2149	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2276	*/	2150	*/
2277		2151
		2152	int
2278	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2153	find_first_free_spot (const object *ob, maptile *m, int x, int y)
		2154	{
		2155	int
2279	int i;	2156	i;
		2157
2280	for(i=0;i<SIZEOFFREE;i++) {	2158	for (i = 0; i < SIZEOFFREE; i++)
		2159	{
2281	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2160	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2282	return i;	2161	return i;
2283	}	2162	}
2284	return -1;	2163	return -1;
2285	}	2164	}
2286		2165
2287	/*	2166	/*
2288	* The function permute(arr, begin, end) randomly reorders the array	2167	* The function permute(arr, begin, end) randomly reorders the array
2289	* arr[begin..end-1].	2168	* arr[begin..end-1].
2290	*/	2169	*/
		2170	static void
2291	static void permute(int *arr, int begin, int end)	2171	permute (int *arr, int begin, int end)
2292	{	2172	{
2293	int i, j, tmp, len;	2173	int
		2174	i,
		2175	j,
		2176	tmp,
		2177	len;
2294		2178
2295	len = end-begin;	2179	len = end - begin;
2296	for(i = begin; i < end; i++)	2180	for (i = begin; i < end; i++)
2297	{	2181	{
2298	j = begin+RANDOM()%len;	2182	j = begin + RANDOM () % len;
2299		2183
2300	tmp = arr[i];	2184	tmp = arr[i];
2301	arr[i] = arr[j];	2185	arr[i] = arr[j];
2302	arr[j] = tmp;	2186	arr[j] = tmp;
2303	}	2187	}
2304	}	2188	}
2305		2189
2306	/* new function to make monster searching more efficient, and effective!	2190	/* new function to make monster searching more efficient, and effective!
2307	* This basically returns a randomized array (in the passed pointer) of	2191	* 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	2192	* 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	2193	* 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	2194	* 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.	2195	* the 3x3 area will be searched, just not in a predictable order.
2312	*/	2196	*/
		2197	void
2313	void get_search_arr(int *search_arr)	2198	get_search_arr (int *search_arr)
2314	{	2199	{
		2200	int
2315	int i;	2201	i;
2316		2202
2317	for(i = 0; i < SIZEOFFREE; i++)	2203	for (i = 0; i < SIZEOFFREE; i++)
2318	{	2204	{
2319	search_arr[i] = i;	2205	search_arr[i] = i;
2320	}	2206	}
2321		2207
2322	permute(search_arr, 1, SIZEOFFREE1+1);	2208	permute (search_arr, 1, SIZEOFFREE1 + 1);
2323	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2209	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2324	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2210	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2325	}	2211	}
2326		2212
2327	/*	2213	/*
2328	* find_dir(map, x, y, exclude) will search some close squares in the	2214	* find_dir(map, x, y, exclude) will search some close squares in the
2329	* given map at the given coordinates for live objects.	2215	* given map at the given coordinates for live objects.
…		…
2335	* is actually want is going to try and move there. We need this info	2221	* 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	2222	* because we have to know what movement the thing looking to move
2337	* there is capable of.	2223	* there is capable of.
2338	*/	2224	*/
2339		2225
		2226	int
2340	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2227	find_dir (maptile *m, int x, int y, object *exclude)
		2228	{
		2229	int
		2230	i,
2341	int i,max=SIZEOFFREE, mflags;	2231	max = SIZEOFFREE, mflags;
		2232
2342	sint16 nx, ny;	2233	sint16 nx, ny;
2343	object *tmp;	2234	object *
2344	mapstruct *mp;	2235	tmp;
		2236	maptile *
		2237	mp;
		2238
2345	MoveType blocked, move_type;	2239	MoveType blocked, move_type;
2346		2240
2347	if (exclude && exclude->head) {	2241	if (exclude && exclude->head)
		2242	{
2348	exclude = exclude->head;	2243	exclude = exclude->head;
2349	move_type = exclude->move_type;	2244	move_type = exclude->move_type;
2350	} else {	2245	}
		2246	else
		2247	{
2351	/* If we don't have anything, presume it can use all movement types. */	2248	/* If we don't have anything, presume it can use all movement types. */
2352	move_type=MOVE_ALL;	2249	move_type = MOVE_ALL;
		2250	}
		2251
		2252	for (i = 1; i < max; i++)
2353	}	2253	{
2354		2254	mp = m;
2355	for(i=1;i<max;i++) {
2356	mp = m;
2357	nx = x + freearr_x[i];	2255	nx = x + freearr_x[i];
2358	ny = y + freearr_y[i];	2256	ny = y + freearr_y[i];
2359		2257
2360	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2258	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
2361	if (mflags & P_OUT_OF_MAP) {	2259	if (mflags & P_OUT_OF_MAP)
		2260	{
2362	max = maxfree[i];	2261	max = maxfree[i];
2363	} else {	2262	}
		2263	else
		2264	{
2364	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2265	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
2365		2266
2366	if ((move_type & blocked) == move_type) {	2267	if ((move_type & blocked) == move_type)
2367	max=maxfree[i];	2268	{
		2269	max = maxfree[i];
		2270	}
2368	} else if (mflags & P_IS_ALIVE) {	2271	else if (mflags & P_IS_ALIVE)
		2272	{
2369	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2273	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2370	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2274	{
2371	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2275	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2372	break;	2276	{
2373	}	2277	break;
2374	}	2278	}
2375	if(tmp) {	2279	}
2376	return freedir[i];	2280	if (tmp)
2377	}	2281	{
		2282	return freedir[i];
		2283	}
		2284	}
		2285	}
2378	}	2286	}
2379	}
2380	}
2381	return 0;	2287	return 0;
2382	}	2288	}
2383		2289
2384	/*	2290	/*
2385	* distance(object 1, object 2) will return the square of the	2291	* distance(object 1, object 2) will return the square of the
2386	* distance between the two given objects.	2292	* distance between the two given objects.
2387	*/	2293	*/
2388		2294
		2295	int
2389	int distance(const object *ob1, const object *ob2) {	2296	distance (const object *ob1, const object *ob2)
		2297	{
2390	int i;	2298	int
2391	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2299	i;
2392	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2300
		2301	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2393	return i;	2302	return i;
2394	}	2303	}
2395		2304
2396	/*	2305	/*
2397	* find_dir_2(delta-x,delta-y) will return a direction in which	2306	* 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	2307	* an object which has subtracted the x and y coordinates of another
2399	* object, needs to travel toward it.	2308	* object, needs to travel toward it.
2400	*/	2309	*/
2401		2310
		2311	int
2402	int find_dir_2(int x, int y) {	2312	find_dir_2 (int x, int y)
		2313	{
2403	int q;	2314	int
		2315	q;
2404		2316
2405	if(y)	2317	if (y)
2406	q=x*100/y;	2318	q = x * 100 / y;
2407	else if (x)	2319	else if (x)
2408	q= -300*x;	2320	q = -300 * x;
2409	else	2321	else
2410	return 0;	2322	return 0;
2411		2323
2412	if(y>0) {	2324	if (y > 0)
		2325	{
2413	if(q < -242)	2326	if (q < -242)
2414	return 3 ;	2327	return 3;
2415	if (q < -41)	2328	if (q < -41)
2416	return 2 ;	2329	return 2;
2417	if (q < 41)	2330	if (q < 41)
2418	return 1 ;	2331	return 1;
2419	if (q < 242)	2332	if (q < 242)
2420	return 8 ;	2333	return 8;
2421	return 7 ;	2334	return 7;
2422	}	2335	}
2423		2336
2424	if (q < -242)	2337	if (q < -242)
2425	return 7 ;	2338	return 7;
2426	if (q < -41)	2339	if (q < -41)
2427	return 6 ;	2340	return 6;
2428	if (q < 41)	2341	if (q < 41)
2429	return 5 ;	2342	return 5;
2430	if (q < 242)	2343	if (q < 242)
2431	return 4 ;	2344	return 4;
2432		2345
2433	return 3 ;	2346	return 3;
2434	}	2347	}
2435		2348
2436	/*	2349	/*
2437	* absdir(int): Returns a number between 1 and 8, which represent	2350	* absdir(int): Returns a number between 1 and 8, which represent
2438	* the "absolute" direction of a number (it actually takes care of	2351	* the "absolute" direction of a number (it actually takes care of
2439	* "overflow" in previous calculations of a direction).	2352	* "overflow" in previous calculations of a direction).
2440	*/	2353	*/
2441		2354
		2355	int
2442	int absdir(int d) {	2356	absdir (int d)
2443	while(d<1) d+=8;	2357	{
2444	while(d>8) d-=8;	2358	while (d < 1)
		2359	d += 8;
		2360	while (d > 8)
		2361	d -= 8;
2445	return d;	2362	return d;
2446	}	2363	}
2447		2364
2448	/*	2365	/*
2449	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2366	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2450	* between two directions (which are expected to be absolute (see absdir())	2367	* between two directions (which are expected to be absolute (see absdir())
2451	*/	2368	*/
2452		2369
		2370	int
2453	int dirdiff(int dir1, int dir2) {	2371	dirdiff (int dir1, int dir2)
		2372	{
2454	int d;	2373	int
		2374	d;
		2375
2455	d = abs(dir1 - dir2);	2376	d = abs (dir1 - dir2);
2456	if(d>4)	2377	if (d > 4)
2457	d = 8 - d;	2378	d = 8 - d;
2458	return d;	2379	return d;
2459	}	2380	}
2460		2381
2461	/* peterm:	2382	/* peterm:
…		…
2466	* direction 4, 14, or 16 to get back to where we are.	2387	* 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	2388	* Moved from spell_util.c to object.c with the other related direction
2468	* functions.	2389	* functions.
2469	*/	2390	*/
2470		2391
		2392	int
2471	int reduction_dir[SIZEOFFREE][3] = {	2393	reduction_dir[SIZEOFFREE][3] = {
2472	{0,0,0}, /* 0 */	2394	{0, 0, 0}, /* 0 */
2473	{0,0,0}, /* 1 */	2395	{0, 0, 0}, /* 1 */
2474	{0,0,0}, /* 2 */	2396	{0, 0, 0}, /* 2 */
2475	{0,0,0}, /* 3 */	2397	{0, 0, 0}, /* 3 */
2476	{0,0,0}, /* 4 */	2398	{0, 0, 0}, /* 4 */
2477	{0,0,0}, /* 5 */	2399	{0, 0, 0}, /* 5 */
2478	{0,0,0}, /* 6 */	2400	{0, 0, 0}, /* 6 */
2479	{0,0,0}, /* 7 */	2401	{0, 0, 0}, /* 7 */
2480	{0,0,0}, /* 8 */	2402	{0, 0, 0}, /* 8 */
2481	{8,1,2}, /* 9 */	2403	{8, 1, 2}, /* 9 */
2482	{1,2,-1}, /* 10 */	2404	{1, 2, -1}, /* 10 */
2483	{2,10,12}, /* 11 */	2405	{2, 10, 12}, /* 11 */
2484	{2,3,-1}, /* 12 */	2406	{2, 3, -1}, /* 12 */
2485	{2,3,4}, /* 13 */	2407	{2, 3, 4}, /* 13 */
2486	{3,4,-1}, /* 14 */	2408	{3, 4, -1}, /* 14 */
2487	{4,14,16}, /* 15 */	2409	{4, 14, 16}, /* 15 */
2488	{5,4,-1}, /* 16 */	2410	{5, 4, -1}, /* 16 */
2489	{4,5,6}, /* 17 */	2411	{4, 5, 6}, /* 17 */
2490	{6,5,-1}, /* 18 */	2412	{6, 5, -1}, /* 18 */
2491	{6,20,18}, /* 19 */	2413	{6, 20, 18}, /* 19 */
2492	{7,6,-1}, /* 20 */	2414	{7, 6, -1}, /* 20 */
2493	{6,7,8}, /* 21 */	2415	{6, 7, 8}, /* 21 */
2494	{7,8,-1}, /* 22 */	2416	{7, 8, -1}, /* 22 */
2495	{8,22,24}, /* 23 */	2417	{8, 22, 24}, /* 23 */
2496	{8,1,-1}, /* 24 */	2418	{8, 1, -1}, /* 24 */
2497	{24,9,10}, /* 25 */	2419	{24, 9, 10}, /* 25 */
2498	{9,10,-1}, /* 26 */	2420	{9, 10, -1}, /* 26 */
2499	{10,11,-1}, /* 27 */	2421	{10, 11, -1}, /* 27 */
2500	{27,11,29}, /* 28 */	2422	{27, 11, 29}, /* 28 */
2501	{11,12,-1}, /* 29 */	2423	{11, 12, -1}, /* 29 */
2502	{12,13,-1}, /* 30 */	2424	{12, 13, -1}, /* 30 */
2503	{12,13,14}, /* 31 */	2425	{12, 13, 14}, /* 31 */
2504	{13,14,-1}, /* 32 */	2426	{13, 14, -1}, /* 32 */
2505	{14,15,-1}, /* 33 */	2427	{14, 15, -1}, /* 33 */
2506	{33,15,35}, /* 34 */	2428	{33, 15, 35}, /* 34 */
2507	{16,15,-1}, /* 35 */	2429	{16, 15, -1}, /* 35 */
2508	{17,16,-1}, /* 36 */	2430	{17, 16, -1}, /* 36 */
2509	{18,17,16}, /* 37 */	2431	{18, 17, 16}, /* 37 */
2510	{18,17,-1}, /* 38 */	2432	{18, 17, -1}, /* 38 */
2511	{18,19,-1}, /* 39 */	2433	{18, 19, -1}, /* 39 */
2512	{41,19,39}, /* 40 */	2434	{41, 19, 39}, /* 40 */
2513	{19,20,-1}, /* 41 */	2435	{19, 20, -1}, /* 41 */
2514	{20,21,-1}, /* 42 */	2436	{20, 21, -1}, /* 42 */
2515	{20,21,22}, /* 43 */	2437	{20, 21, 22}, /* 43 */
2516	{21,22,-1}, /* 44 */	2438	{21, 22, -1}, /* 44 */
2517	{23,22,-1}, /* 45 */	2439	{23, 22, -1}, /* 45 */
2518	{45,47,23}, /* 46 */	2440	{45, 47, 23}, /* 46 */
2519	{23,24,-1}, /* 47 */	2441	{23, 24, -1}, /* 47 */
2520	{24,9,-1}}; /* 48 */	2442	{24, 9, -1}
		2443	}; /* 48 */
2521		2444
2522	/* Recursive routine to step back and see if we can	2445	/* Recursive routine to step back and see if we can
2523	* find a path to that monster that we found. If not,	2446	* find a path to that monster that we found. If not,
2524	* we don't bother going toward it. Returns 1 if we	2447	* we don't bother going toward it. Returns 1 if we
2525	* can see a direct way to get it	2448	* can see a direct way to get it
2526	* Modified to be map tile aware -.MSW	2449	* Modified to be map tile aware -.MSW
2527	*/	2450	*/
2528
2529		2451
		2452
		2453	int
2530	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2454	can_see_monsterP (maptile *m, int x, int y, int dir)
		2455	{
2531	sint16 dx, dy;	2456	sint16 dx, dy;
		2457	int
2532	int mflags;	2458	mflags;
2533		2459
		2460	if (dir < 0)
2534	if(dir<0) return 0; /* exit condition: invalid direction */	2461	return 0; /* exit condition: invalid direction */
2535		2462
2536	dx = x + freearr_x[dir];	2463	dx = x + freearr_x[dir];
2537	dy = y + freearr_y[dir];	2464	dy = y + freearr_y[dir];
2538		2465
2539	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2466	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2540		2467
2541	/* This functional arguably was incorrect before - it was	2468	/* This functional arguably was incorrect before - it was
2542	* checking for P_WALL - that was basically seeing if	2469	* checking for P_WALL - that was basically seeing if
2543	* we could move to the monster - this is being more	2470	* we could move to the monster - this is being more
2544	* literal on if we can see it. To know if we can actually	2471	* 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	2472	* move to the monster, we'd need the monster passed in or
2546	* at least its move type.	2473	* at least its move type.
2547	*/	2474	*/
2548	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2475	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2476	return 0;
2549		2477
2550	/* yes, can see. */	2478	/* yes, can see. */
2551	if(dir < 9) return 1;	2479	if (dir < 9)
		2480	return 1;
2552	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2481	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |
2553	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2482	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	}	2483	}
2556		2484
2557		2485
2558		2486
2559	/*	2487	/*
2560	* can_pick(picker, item): finds out if an object is possible to be	2488	* 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	2489	* picked up by the picker. Returnes 1 if it can be
2562	* picked up, otherwise 0.	2490	* picked up, otherwise 0.
2563	*	2491	*
…		…
2565	* core dumps if they do.	2493	* core dumps if they do.
2566	*	2494	*
2567	* Add a check so we can't pick up invisible objects (0.93.8)	2495	* Add a check so we can't pick up invisible objects (0.93.8)
2568	*/	2496	*/
2569		2497
		2498	int
2570	int can_pick(const object *who, const object *item) {	2499	can_pick (const object *who, const object *item)
		2500	{
2571	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2501	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2572	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2502	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2573	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2503	!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	}	2504	}
2576		2505
2577		2506
2578	/*	2507	/*
2579	* create clone from object to another	2508	* create clone from object to another
2580	*/	2509	*/
		2510	object *
2581	object *object_create_clone (object *asrc) {	2511	object_create_clone (object *asrc)
		2512	{
2582	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2513	object *dst = 0, *tmp, *src, *part, *prev, *item;
2583		2514
2584	if(!asrc) return NULL;	2515	if (!asrc)
		2516	return 0;
		2517
2585	src = asrc;	2518	src = asrc;
2586	if(src->head)	2519	if (src->head)
2587	src = src->head;	2520	src = src->head;
2588		2521
2589	prev = NULL;	2522	prev = 0;
2590	for(part = src; part; part = part->more) {	2523	for (part = src; part; part = part->more)
2591	tmp = get_object();	2524	{
2592	copy_object(part,tmp);	2525	tmp = part->clone ();
2593	tmp->x -= src->x;	2526	tmp->x -= src->x;
2594	tmp->y -= src->y;	2527	tmp->y -= src->y;
		2528
2595	if(!part->head) {	2529	if (!part->head)
		2530	{
2596	dst = tmp;	2531	dst = tmp;
2597	tmp->head = NULL;	2532	tmp->head = 0;
		2533	}
2598	} else {	2534	else
		2535	{
2599	tmp->head = dst;	2536	tmp->head = dst;
2600	}	2537	}
		2538
2601	tmp->more = NULL;	2539	tmp->more = 0;
		2540
2602	if(prev)	2541	if (prev)
2603	prev->more = tmp;	2542	prev->more = tmp;
		2543
2604	prev = tmp;	2544	prev = tmp;
2605	}	2545	}
2606	/*** copy inventory ***/	2546
2607	for(item = src->inv; item; item = item->below) {	2547	for (item = src->inv; item; item = item->below)
2608	(void) insert_ob_in_ob(object_create_clone(item),dst);	2548	insert_ob_in_ob (object_create_clone (item), dst);
2609	}
2610		2549
2611	return dst;	2550	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	}	2551	}
2621		2552
2622	/* GROS - Creates an object using a string representing its content. */	2553	/* 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 */	2554	/* 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, */	2555	/* 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. */	2556	/* 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. */	2557	/* Remember not to use load_object_str in a time-critical situation. */
2627	/* Also remember that multiparts objects are not supported for now. */	2558	/* Also remember that multiparts objects are not supported for now. */
2628		2559
		2560	object *
2629	object* load_object_str(const char *obstr)	2561	load_object_str (const char *obstr)
2630	{	2562	{
2631	object *op;	2563	object *op;
2632	FILE *tempfile;
2633	char filename[MAX_BUF];	2564	char filename[MAX_BUF];
		2565
2634	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2566	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
		2567
2635	tempfile=fopen(filename,"w");	2568	FILE *tempfile = fopen (filename, "w");
		2569
2636	if (tempfile == NULL)	2570	if (tempfile == NULL)
2637	{	2571	{
2638	LOG(llevError,"Error - Unable to access load object temp file\n");	2572	LOG (llevError, "Error - Unable to access load object temp file\n");
2639	return NULL;	2573	return NULL;
2640	};	2574	}
		2575
2641	fprintf(tempfile,obstr);	2576	fprintf (tempfile, obstr);
2642	fclose(tempfile);	2577	fclose (tempfile);
2643		2578
2644	op=get_object();	2579	op = object::create ();
2645		2580
2646	tempfile=fopen(filename,"r");	2581	object_thawer thawer (filename);
2647	if (tempfile == NULL)	2582
2648	{	2583	if (thawer)
2649	LOG(llevError,"Error - Unable to read object temp file\n");	2584	load_object (thawer, op, 0);
2650	return NULL;	2585
2651	};
2652	load_object(tempfile,op,LO_NEWFILE,0);
2653	LOG(llevDebug," load str completed, object=%s\n",op->name);	2586	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2654	CLEAR_FLAG(op,FLAG_REMOVED);	2587	CLEAR_FLAG (op, FLAG_REMOVED);
2655	fclose(tempfile);	2588
2656	return op;	2589	return op;
2657	}	2590	}
2658		2591
2659	/* This returns the first object in who's inventory that	2592	/* This returns the first object in who's inventory that
2660	* has the same type and subtype match.	2593	* has the same type and subtype match.
2661	* returns NULL if no match.	2594	* returns NULL if no match.
2662	*/	2595	*/
		2596	object *
2663	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2597	find_obj_by_type_subtype (const object *who, int type, int subtype)
2664	{	2598	{
2665	object *tmp;	2599	object *tmp;
2666		2600
2667	for (tmp=who->inv; tmp; tmp=tmp->below)	2601	for (tmp = who->inv; tmp; tmp = tmp->below)
2668	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2602	if (tmp->type == type && tmp->subtype == subtype)
		2603	return tmp;
2669		2604
2670	return NULL;	2605	return NULL;
2671	}	2606	}
2672		2607
2673	/* If ob has a field named key, return the link from the list,	2608	/* If ob has a field named key, return the link from the list,
2674	* otherwise return NULL.	2609	* otherwise return NULL.
2675	*	2610	*
2676	* key must be a passed in shared string - otherwise, this won't	2611	* key must be a passed in shared string - otherwise, this won't
2677	* do the desired thing.	2612	* do the desired thing.
2678	*/	2613	*/
		2614	key_value *
2679	key_value * get_ob_key_link(const object * ob, const char * key) {	2615	get_ob_key_link (const object *ob, const char *key)
		2616	{
2680	key_value * link;	2617	key_value *link;
2681		2618
2682	for (link = ob->key_values; link != NULL; link = link->next) {	2619	for (link = ob->key_values; link != NULL; link = link->next)
2683	if (link->key == key) {	2620	if (link->key == key)
2684	return link;	2621	return link;
2685	}	2622
2686	}
2687
2688	return NULL;	2623	return NULL;
2689	}	2624	}
2690		2625
2691	/*	2626	/*
2692	* Returns the value of op has an extra_field for key, or NULL.	2627	* Returns the value of op has an extra_field for key, or NULL.
2693	*	2628	*
2694	* The argument doesn't need to be a shared string.	2629	* The argument doesn't need to be a shared string.
2695	*	2630	*
2696	* The returned string is shared.	2631	* The returned string is shared.
2697	*/	2632	*/
		2633	const char *
2698	const char * get_ob_key_value(const object * op, const char * const key) {	2634	get_ob_key_value (const object *op, const char *const key)
		2635	{
2699	key_value * link;	2636	key_value *link;
2700	const char * canonical_key;	2637	shstr_cmp canonical_key (key);
		2638
		2639	if (!canonical_key)
2701		2640	{
2702	canonical_key = find_string(key);
2703
2704	if (canonical_key == NULL) {
2705	/* 1. There being a field named key on any object	2641	/* 1. There being a field named key on any object
2706	* implies there'd be a shared string to find.	2642	* implies there'd be a shared string to find.
2707	* 2. Since there isn't, no object has this field.	2643	* 2. Since there isn't, no object has this field.
2708	* 3. Therefore, *this* object doesn't have this field.	2644	* 3. Therefore, *this* object doesn't have this field.
2709	*/	2645	*/
2710	return NULL;	2646	return 0;
2711	}	2647	}
2712		2648
2713	/* This is copied from get_ob_key_link() above -	2649	/* This is copied from get_ob_key_link() above -
2714	* only 4 lines, and saves the function call overhead.	2650	* only 4 lines, and saves the function call overhead.
2715	*/	2651	*/
2716	for (link = op->key_values; link != NULL; link = link->next) {	2652	for (link = op->key_values; link; link = link->next)
2717	if (link->key == canonical_key) {	2653	if (link->key == canonical_key)
2718	return link->value;	2654	return link->value;
2719	}	2655
2720	}	2656	return 0;
2721	return NULL;
2722	}	2657	}
2723		2658
2724		2659
2725	/*	2660	/*
2726	* Updates the canonical_key in op to value.	2661	* 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	2665	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2731	* keys.	2666	* keys.
2732	*	2667	*
2733	* Returns TRUE on success.	2668	* Returns TRUE on success.
2734	*/	2669	*/
		2670	int
2735	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2671	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2672	{
		2673	key_value *
2736	key_value * field = NULL, *last=NULL;	2674	field = NULL, *last = NULL;
2737		2675
2738	for (field=op->key_values; field != NULL; field=field->next) {	2676	for (field = op->key_values; field != NULL; field = field->next)
2739	if (field->key != canonical_key) {
2740	last = field;
2741	continue;
2742	}
2743		2677	{
2744	if (field->value) FREE_AND_CLEAR_STR(field->value);	2678	if (field->key != canonical_key)
2745	if (value)	2679	{
2746	field->value = add_string(value);	2680	last = field;
2747	else {	2681	continue;
		2682	}
		2683
		2684	if (value)
		2685	field->value = value;
		2686	else
		2687	{
2748	/* Basically, if the archetype has this key set,	2688	/* Basically, if the archetype has this key set,
2749	* we need to store the null value so when we save	2689	* we need to store the null value so when we save
2750	* it, we save the empty value so that when we load,	2690	* it, we save the empty value so that when we load,
2751	* we get this value back again.	2691	* we get this value back again.
2752	*/	2692	*/
2753	if (get_ob_key_link(&op->arch->clone, canonical_key))	2693	if (get_ob_key_link (&op->arch->clone, canonical_key))
2754	field->value = NULL;	2694	field->value = 0;
2755	else {	2695	else
2756	/* Delete this link */	2696	{
2757	if (field->key) FREE_AND_CLEAR_STR(field->key);	2697	if (last)
2758	if (field->value) FREE_AND_CLEAR_STR(field->value);	2698	last->next = field->next;
2759	if (last) last->next = field->next;	2699	else
2760	else op->key_values = field->next;	2700	op->key_values = field->next;
2761	free(field);	2701
2762	}	2702	delete field;
2763	}	2703	}
		2704	}
2764	return TRUE;	2705	return TRUE;
2765	}	2706	}
2766	/* IF we get here, key doesn't exist */	2707	/* IF we get here, key doesn't exist */
2767		2708
2768	/* No field, we'll have to add it. */	2709	/* No field, we'll have to add it. */
		2710
		2711	if (!add_key)
2769		2712	{
2770	if (!add_key) {
2771	return FALSE;	2713	return FALSE;
2772	}	2714	}
2773	/* There isn't any good reason to store a null	2715	/* There isn't any good reason to store a null
2774	* value in the key/value list. If the archetype has	2716	* value in the key/value list. If the archetype has
2775	* this key, then we should also have it, so shouldn't	2717	* this key, then we should also have it, so shouldn't
2776	* be here. If user wants to store empty strings,	2718	* be here. If user wants to store empty strings,
2777	* should pass in ""	2719	* should pass in ""
2778	*/	2720	*/
2779	if (value == NULL) return TRUE;	2721	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;	2722	return TRUE;
		2723
		2724	field = new key_value;
		2725
		2726	field->key = canonical_key;
		2727	field->value = value;
		2728	/* Usual prepend-addition. */
		2729	field->next = op->key_values;
		2730	op->key_values = field;
		2731
		2732	return TRUE;
2790	}	2733	}
2791		2734
2792	/*	2735	/*
2793	* Updates the key in op to value.	2736	* Updates the key in op to value.
2794	*	2737	*
…		…
2796	* and not add new ones.	2739	* and not add new ones.
2797	* In general, should be little reason FALSE is ever passed in for add_key	2740	* In general, should be little reason FALSE is ever passed in for add_key
2798	*	2741	*
2799	* Returns TRUE on success.	2742	* Returns TRUE on success.
2800	*/	2743	*/
		2744	int
2801	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2745	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2802	const char * canonical_key = NULL;	2746	{
2803	int floating_ref = FALSE;	2747	shstr key_ (key);
2804	int ret;	2748
		2749	return set_ob_key_value_s (op, key_, value, add_key);
		2750	}
		2751
		2752	object::depth_iterator::depth_iterator (object *container)
		2753	: iterator_base (container)
		2754	{
		2755	while (item->inv)
		2756	item = item->inv;
		2757	}
		2758
		2759	void
		2760	object::depth_iterator::next ()
		2761	{
		2762	if (item->below)
2805		2763	{
2806	/* HACK This mess is to make sure set_ob_value() passes a shared string	2764	item = item->below;
2807	* to get_ob_key_link(), without leaving a leaked refcount.	2765
2808	*/	2766	while (item->inv)
		2767	item = item->inv;
2809		2768	}
2810	canonical_key = find_string(key);	2769	else
2811	if (canonical_key == NULL) {	2770	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	}	2771	}
		2772
		2773	// return a suitable string describing an objetc in enough detail to find it
		2774	const char *
		2775	object::debug_desc (char *info) const
		2776	{
		2777	char info2[256 * 3];
		2778	char *p = info;
		2779
		2780	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2781	count,
		2782	&name,
		2783	title ? " " : "",
		2784	title ? (const char *)title : "");
		2785
		2786	if (env)
		2787	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2788
		2789	if (map)
		2790	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2791
		2792	return info;
		2793	}
		2794
		2795	const char *
		2796	object::debug_desc () const
		2797	{
		2798	static char info[256 * 3];
		2799	return debug_desc (info);
		2800	}
		2801

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