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

Comparing deliantra/server/common/object.C (file contents):
Revision 1.3 by root, Sat Aug 26 08:44:05 2006 UTC vs.
Revision 1.67 by root, Thu Dec 14 04:30:32 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.3 2006/08/26 08:44:05 root Exp $";
4	*/
5
6	/*	1	/*
7	CrossFire, A Multiplayer game for X-windows	2	CrossFire, A Multiplayer game for X-windows
8		3
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	5	Copyright (C) 1992 Frank Tore Johansen
…		…
21		16
22	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software	18	along with this program; if not, write to the Free Software
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25		20
26	The authors can be reached via e-mail at crossfire-devel@real-time.com	21	The authors can be reached via e-mail at <crossfire@schmorp.de>
27	*/	22	*/
28		23
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying	25	sub/add_weight will transcend the environment updating the carrying
31	variable. */	26	variable. */
32	#include <global.h>	27	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	28	#include <stdio.h>
35	#include <sys/types.h>	29	#include <sys/types.h>
36	#include <sys/uio.h>	30	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	31	#include <object.h>
39	#include <funcpoint.h>	32	#include <funcpoint.h>
40	#include <skills.h>
41	#include <loader.h>	33	#include <loader.h>
42	#ifdef MEMORY_DEBUG	34
43	int nroffreeobjects = 0;
44	int nrofallocobjects = 0;	35	int nrofallocobjects = 0;
45	#undef OBJ_EXPAND	36	static UUID uuid;
46	#define OBJ_EXPAND 1	37	const uint64 UUID_SKIP = 1<<19;
47	#else
48	object objarray[STARTMAX]; /* All objects, allocated this way at first */
49	int nroffreeobjects = STARTMAX; /* How many OBs allocated and free (free) */
50	int nrofallocobjects = STARTMAX; /* How many OBs allocated (free + used) */
51	#endif
52		38
53	object *objects; /* Pointer to the list of used objects */
54	object *free_objects; /* Pointer to the list of unused objects */
55	object *active_objects; /* List of active objects that need to be processed */	39	object *active_objects; /* List of active objects that need to be processed */
56		40
57	short freearr_x[SIZEOFFREE]=	41	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
58	{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,
59	0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3,-3,-3,-3,-3,-2,-1};	42	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
60	short freearr_y[SIZEOFFREE]=	43	};
61	{0,-1,-1,0,1,1,1,0,-1,-2,-2,-2,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,	44	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
62	-3,-3,-3,-3,-2,-1,0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3};	45	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
63	int maxfree[SIZEOFFREE]=	46	};
64	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,	47	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
65	48,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49};	48	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		49	};
66	int freedir[SIZEOFFREE]= {	50	int freedir[SIZEOFFREE] = {
67	0,1,2,3,4,5,6,7,8,1,2,2,2,3,4,4,4,5,6,6,6,7,8,8,8,	51	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
68	1,2,2,2,2,2,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,8};	52	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		53	};
69		54
		55	static void
		56	write_uuid (void)
		57	{
		58	char filename1[MAX_BUF], filename2[MAX_BUF];
		59
		60	sprintf (filename1, "%s/uuid", settings.localdir);
		61	sprintf (filename2, "%s/uuid~", settings.localdir);
		62
		63	FILE *fp;
		64
		65	if (!(fp = fopen (filename2, "w")))
		66	{
		67	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		68	return;
		69	}
		70
		71	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		72	fclose (fp);
		73	rename (filename2, filename1);
		74	}
		75
		76	static void
		77	read_uuid (void)
		78	{
		79	char filename[MAX_BUF];
		80
		81	sprintf (filename, "%s/uuid", settings.localdir);
		82
		83	FILE *fp;
		84
		85	if (!(fp = fopen (filename, "r")))
		86	{
		87	if (errno == ENOENT)
		88	{
		89	LOG (llevInfo, "RESET uid to 1\n");
		90	uuid.seq = 0;
		91	write_uuid ();
		92	return;
		93	}
		94
		95	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		96	_exit (1);
		97	}
		98
		99	int version;
		100	unsigned long long uid;
		101	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		102	{
		103	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		104	_exit (1);
		105	}
		106
		107	uuid.seq = uid;
		108	write_uuid ();
		109	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		110	fclose (fp);
		111	}
		112
		113	UUID
		114	gen_uuid ()
		115	{
		116	UUID uid;
		117
		118	uid.seq = ++uuid.seq;
		119
		120	if (!(uuid.seq & (UUID_SKIP - 1)))
		121	write_uuid ();
		122
		123	return uid;
		124	}
		125
		126	void
		127	init_uuid ()
		128	{
		129	read_uuid ();
		130	}
70		131
71	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	132	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		133	static int
72	static int compare_ob_value_lists_one(const object * wants, const object * has) {	134	compare_ob_value_lists_one (const object *wants, const object *has)
		135	{
73	key_value * wants_field;	136	key_value *wants_field;
74		137
75	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	138	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
76	* objects with lists are rare, and lists stay short. If not, use a	139	* objects with lists are rare, and lists stay short. If not, use a
77	* different structure or at least keep the lists sorted...	140	* different structure or at least keep the lists sorted...
78	*/	141	*/
79		142
80	/* For each field in wants, */	143	/* For each field in wants, */
81	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	144	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)
		145	{
82	key_value * has_field;	146	key_value *has_field;
83		147
84	/* Look for a field in has with the same key. */	148	/* Look for a field in has with the same key. */
85	has_field = get_ob_key_link(has, wants_field->key);	149	has_field = get_ob_key_link (has, wants_field->key);
		150
		151	if (has_field == NULL)
86		152	{
87	if (has_field == NULL) {
88	/* No field with that name. */	153	/* No field with that name. */
89	return FALSE;	154	return FALSE;
90	}
91		155	}
		156
92	/* Found the matching field. */	157	/* Found the matching field. */
93	if (has_field->value != wants_field->value) {	158	if (has_field->value != wants_field->value)
		159	{
94	/* Values don't match, so this half of the comparison is false. */	160	/* Values don't match, so this half of the comparison is false. */
95	return FALSE;	161	return FALSE;
96	}	162	}
97		163
98	/* If we get here, we found a match. Now for the next field in wants. */	164	/* If we get here, we found a match. Now for the next field in wants. */
99	}
100		165	}
		166
101	/* If we get here, every field in wants has a matching field in has. */	167	/* If we get here, every field in wants has a matching field in has. */
102	return TRUE;	168	return TRUE;
103	}	169	}
104		170
105	/* Returns TRUE if ob1 has the same key_values as ob2. */	171	/* Returns TRUE if ob1 has the same key_values as ob2. */
		172	static int
106	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	173	compare_ob_value_lists (const object *ob1, const object *ob2)
		174	{
107	/* However, there may be fields in has which aren't partnered in wants,	175	/* However, there may be fields in has which aren't partnered in wants,
108	* so we need to run the comparison *twice*. :(	176	* so we need to run the comparison *twice*. :(
109	*/	177	*/
110	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	178	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
111	}	179	}
112		180
113	/* Function examines the 2 objects given to it, and returns true if	181	/* Function examines the 2 objects given to it, and returns true if
114	* they can be merged together.	182	* they can be merged together.
115	*	183	*
116	* Note that this function appears a lot longer than the macro it	184	* Note that this function appears a lot longer than the macro it
117	* replaces - this is mostly for clarity - a decent compiler should hopefully	185	* replaces - this is mostly for clarity - a decent compiler should hopefully
118	* reduce this to the same efficiency.	186	* reduce this to the same efficiency.
119	*	187	*
120	* Check nrof variable *before* calling CAN_MERGE()	188	* Check nrof variable *before* calling can_merge()
121	*	189	*
122	* Improvements made with merge: Better checking on potion, and also	190	* Improvements made with merge: Better checking on potion, and also
123	* check weight	191	* check weight
124	*/	192	*/
125		193
126	int CAN_MERGE(object *ob1, object *ob2) {	194	bool object::can_merge_slow (object *ob1, object *ob2)
127		195	{
128	/* A couple quicksanity checks */	196	/* A couple quicksanity checks */
129	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	197	if (ob1 == ob2
130		198	|| ob1->type != ob2->type
131	if (ob1->speed != ob2->speed) return 0;	199	|| ob1->speed != ob2->speed
132	/* Note sure why the following is the case - either the object has to	200	|| ob1->value != ob2->value
133	* be animated or have a very low speed. Is this an attempted monster	201	|| ob1->name != ob2->name)
134	* check?
135	*/
136	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)
137	return 0;	202	return 0;
138		203
		204	//TODO: this ain't working well, use nicer and correct overflow check
139	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	205	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
140	* value could not be stored in a sint32 (which unfortunately sometimes is	206	* value could not be stored in a sint32 (which unfortunately sometimes is
141	* used to store nrof).	207	* used to store nrof).
142	*/	208	*/
143	if (ob1->nrof+ob2->nrof >= 1UL<<31)	209	if (ob1->nrof + ob2->nrof >= 1UL << 31)
144	return 0;	210	return 0;
145		211
146	/* This is really a spellbook check - really, we should
147	* check all objects in the inventory.
148	*/
149	if (ob1->inv || ob2->inv) {
150	/* if one object has inventory but the other doesn't, not equiv */
151	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) return 0;
152
153	/* Now check to see if the two inventory objects could merge */
154	if (!CAN_MERGE(ob1->inv, ob2->inv)) return 0;
155
156	/* inventory ok - still need to check rest of this object to see
157	* if it is valid.
158	*/
159	}
160
161	/* If the objects have been identified, set the BEEN_APPLIED flag.	212	/* If the objects have been identified, set the BEEN_APPLIED flag.
162	* This is to the comparison of the flags below will be OK. We	213	* This is to the comparison of the flags below will be OK. We
163	* just can't ignore the been applied or identified flags, as they	214	* just can't ignore the been applied or identified flags, as they
164	* are not equal - just if it has been identified, the been_applied	215	* are not equal - just if it has been identified, the been_applied
165	* flags lose any meaning.	216	* flags lose any meaning.
166	*/	217	*/
167	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))	218	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
168	SET_FLAG(ob1, FLAG_BEEN_APPLIED);	219	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
169		220
170	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))	221	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
171	SET_FLAG(ob2, FLAG_BEEN_APPLIED);	222	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
172		223
173		224
174	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	225	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
175	* being locked in inventory should prevent merging.	226	* being locked in inventory should prevent merging.
176	* 0x4 in flags3 is CLIENT_SENT	227	* 0x4 in flags3 is CLIENT_SENT
177	*/	228	*/
178	if ((ob1->arch != ob2->arch) ||	229	if ((ob1->arch != ob2->arch) ||
179	(ob1->flags[0] != ob2->flags[0]) ||	230	(ob1->flags[0] != ob2->flags[0]) ||
180	(ob1->flags[1] != ob2->flags[1]) ||	231	(ob1->flags[1] != ob2->flags[1]) ||
181	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||	232	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
182	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||	233	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
183	(ob1->name != ob2->name) ||	234	(ob1->name != ob2->name) ||
184	(ob1->title != ob2->title) ||	235	(ob1->title != ob2->title) ||
185	(ob1->msg != ob2->msg) ||	236	(ob1->msg != ob2->msg) ||
186	(ob1->weight != ob2->weight) ||	237	(ob1->weight != ob2->weight) ||
187	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||	238	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
188	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||	239	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
189	(ob1->attacktype != ob2->attacktype) ||	240	(ob1->attacktype != ob2->attacktype) ||
190	(ob1->magic != ob2->magic) ||	241	(ob1->magic != ob2->magic) ||
191	(ob1->slaying != ob2->slaying) ||	242	(ob1->slaying != ob2->slaying) ||
192	(ob1->skill != ob2->skill) ||	243	(ob1->skill != ob2->skill) ||
193	(ob1->value != ob2->value) ||	244	(ob1->value != ob2->value) ||
194	(ob1->animation_id != ob2->animation_id) ||	245	(ob1->animation_id != ob2->animation_id) ||
195	(ob1->client_type != ob2->client_type) ||	246	(ob1->client_type != ob2->client_type) ||
196	(ob1->materialname != ob2->materialname) ||	247	(ob1->materialname != ob2->materialname) ||
197	(ob1->lore != ob2->lore) ||	248	(ob1->lore != ob2->lore) ||
198	(ob1->subtype != ob2->subtype) ||	249	(ob1->subtype != ob2->subtype) ||
199	(ob1->move_type != ob2->move_type) ||	250	(ob1->move_type != ob2->move_type) ||
200	(ob1->move_block != ob2->move_block) ||	251	(ob1->move_block != ob2->move_block) ||
201	(ob1->move_allow != ob2->move_allow) ||	252	(ob1->move_allow != ob2->move_allow) ||
202	(ob1->move_on != ob2->move_on) ||	253	(ob1->move_on != ob2->move_on) ||
203	(ob1->move_off != ob2->move_off) ||	254	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))
204	(ob1->move_slow != ob2->move_slow) ||
205	(ob1->move_slow_penalty != ob2->move_slow_penalty)
206	)
207	return 0;	255	return 0;
208		256
		257	/* This is really a spellbook check - really, we should
		258	* check all objects in the inventory.
		259	*/
		260	if (ob1->inv || ob2->inv)
		261	{
		262	/* if one object has inventory but the other doesn't, not equiv */
		263	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
		264	return 0;
		265
		266	/* Now check to see if the two inventory objects could merge */
		267	if (!object::can_merge (ob1->inv, ob2->inv))
		268	return 0;
		269
		270	/* inventory ok - still need to check rest of this object to see
		271	* if it is valid.
		272	*/
		273	}
		274
209	/* Don't merge objects that are applied. With the new 'body' code,	275	/* Don't merge objects that are applied. With the new 'body' code,
210	* it is possible for most any character to have more than one of	276	* it is possible for most any character to have more than one of
211	* some items equipped, and we don't want those to merge.	277	* some items equipped, and we don't want those to merge.
212	*/	278	*/
213	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	279	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
214	return 0;	280	return 0;
215		281
		282	/* Note sure why the following is the case - either the object has to
		283	* be animated or have a very low speed. Is this an attempted monster
		284	* check?
		285	*/
		286	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
		287	return 0;
		288
216	switch (ob1->type) {	289	switch (ob1->type)
		290	{
217	case SCROLL:	291	case SCROLL:
218	if (ob1->level != ob2->level) return 0;	292	if (ob1->level != ob2->level)
		293	return 0;
219	break;	294	break;
220
221	}	295	}
		296
222	if (ob1->key_values != NULL || ob2->key_values != NULL) {	297	if (ob1->key_values != NULL || ob2->key_values != NULL)
		298	{
223	/* At least one of these has key_values. */	299	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {	300	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
225	/* One has fields, but the other one doesn't. */	301	/* One has fields, but the other one doesn't. */
226	return 0;	302	return 0;
227	} else if (!compare_ob_value_lists(ob1, ob2)) {	303	else if (!compare_ob_value_lists (ob1, ob2))
228	return 0;	304	return 0;
229	}	305	}
		306
		307	//TODO: generate an event or call into perl for additional checks
		308	if (ob1->self || ob2->self)
230	}	309	{
		310	ob1->optimise ();
		311	ob2->optimise ();
231		312
		313	if (ob1->self || ob2->self)
		314	return 0;
		315	}
		316
232	/* Everything passes, must be OK. */	317	/* Everything passes, must be OK. */
233	return 1;	318	return 1;
234	}	319	}
235		320
236	/*	321	/*
237	* sum_weight() is a recursive function which calculates the weight	322	* sum_weight() is a recursive function which calculates the weight
238	* an object is carrying. It goes through in figures out how much	323	* an object is carrying. It goes through in figures out how much
239	* containers are carrying, and sums it up.	324	* containers are carrying, and sums it up.
240	*/	325	*/
241	signed long sum_weight(object *op) {	326	long
		327	sum_weight (object *op)
		328	{
242	signed long sum;	329	long sum;
243	object *inv;	330	object *inv;
		331
244	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	332	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		333	{
245	if (inv->inv)	334	if (inv->inv)
246	sum_weight(inv);	335	sum_weight (inv);
247	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	336	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
248	}	337	}
		338
249	if (op->type == CONTAINER && op->stats.Str)	339	if (op->type == CONTAINER && op->stats.Str)
250	sum = (sum * (100 - op->stats.Str))/100;	340	sum = (sum * (100 - op->stats.Str)) / 100;
		341
251	if(op->carrying != sum)	342	if (op->carrying != sum)
252	op->carrying = sum;	343	op->carrying = sum;
		344
253	return sum;	345	return sum;
254	}	346	}
255		347
256	/**	348	/**
257	* Return the outermost environment object for a given object.	349	* Return the outermost environment object for a given object.
258	*/	350	*/
259		351
		352	object *
260	object *object_get_env_recursive (object *op) {	353	object_get_env_recursive (object *op)
		354	{
261	while (op->env != NULL)	355	while (op->env != NULL)
262	op = op->env;	356	op = op->env;
263	return op;	357	return op;
264	}	358	}
265		359
266	/*	360	/*
267	* Eneq(@csd.uu.se): Since we can have items buried in a character we need	361	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
268	* a better check. We basically keeping traversing up until we can't	362	* a better check. We basically keeping traversing up until we can't
269	* or find a player.	363	* or find a player.
270	*/	364	*/
271		365
		366	object *
272	object *is_player_inv (object *op) {	367	is_player_inv (object *op)
		368	{
273	for (;op!=NULL&&op->type!=PLAYER; op=op->env)	369	for (; op != NULL && op->type != PLAYER; op = op->env)
274	if (op->env==op)	370	if (op->env == op)
275	op->env = NULL;	371	op->env = NULL;
276	return op;	372	return op;
277	}	373	}
278		374
279	/*	375	/*
280	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	376	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
281	* Some error messages.	377	* Some error messages.
282	* The result of the dump is stored in the static global errmsg array.	378	* The result of the dump is stored in the static global errmsg array.
283	*/	379	*/
284		380
285	void dump_object2(object *op) {	381	char *
286	char *cp;
287	/* object *tmp;*/
288
289	if(op->arch!=NULL) {
290	strcat(errmsg,"arch ");
291	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
292	strcat(errmsg,"\n");
293	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
294	strcat(errmsg,cp);
295	#if 0
296	/* Don't dump player diffs - they are too long, mostly meaningless, and
297	* will overflow the buffer.
298	* Changed so that we don't dump inventory either. This may
299	* also overflow the buffer.
300	*/
301	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
302	strcat(errmsg,cp);
303	for (tmp=op->inv; tmp; tmp=tmp->below)
304	dump_object2(tmp);
305	#endif
306	strcat(errmsg,"end\n");
307	} else {
308	strcat(errmsg,"Object ");
309	if (op->name==NULL) strcat(errmsg, "(null)");
310	else strcat(errmsg,op->name);
311	strcat(errmsg,"\n");
312	#if 0
313	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
314	strcat(errmsg,cp);
315	for (tmp=op->inv; tmp; tmp=tmp->below)
316	dump_object2(tmp);
317	#endif
318	strcat(errmsg,"end\n");
319	}
320	}
321
322	/*
323	* Dumps an object. Returns output in the static global errmsg array.
324	*/
325
326	void dump_object(object *op) {	382	dump_object (object *op)
327	if(op==NULL) {
328	strcpy(errmsg,"[NULL pointer]");
329	return;
330	}
331	errmsg[0]='\0';
332	dump_object2(op);
333	}
334
335	/* GROS - Dumps an object. Return the result into a string */
336	/* Note that no checking is done for the validity of the target string, so */
337	/* you need to be sure that you allocated enough space for it. */
338	void dump_me(object *op, char *outstr)
339	{	383	{
340	char *cp;	384	if (!op)
		385	return strdup ("[NULLOBJ]");
341		386
342	if(op==NULL)	387	object_freezer freezer;
343	{	388	save_object (freezer, op, 3);
344	strcpy(outstr,"[NULL pointer]");	389	return freezer.as_string ();
345	return;
346	}
347	outstr[0]='\0';
348
349	if(op->arch!=NULL)
350	{
351	strcat(outstr,"arch ");
352	strcat(outstr,op->arch->name?op->arch->name:"(null)");
353	strcat(outstr,"\n");
354	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
355	strcat(outstr,cp);
356	strcat(outstr,"end\n");
357	}
358	else
359	{
360	strcat(outstr,"Object ");
361	if (op->name==NULL)
362	strcat(outstr, "(null)");
363	else
364	strcat(outstr,op->name);
365	strcat(outstr,"\n");
366	strcat(outstr,"end\n");
367	}
368	}
369
370	/*
371	* This is really verbose...Can be triggered by the P key while in DM mode.
372	* All objects are dumped to stderr (or alternate logfile, if in server-mode)
373	*/
374
375	void dump_all_objects(void) {
376	object *op;
377	for(op=objects;op!=NULL;op=op->next) {
378	dump_object(op);
379	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
380	}
381	}	390	}
382		391
383	/*	392	/*
384	* get_nearest_part(multi-object, object 2) returns the part of the	393	* get_nearest_part(multi-object, object 2) returns the part of the
385	* multi-object 1 which is closest to the second object.	394	* multi-object 1 which is closest to the second object.
386	* If it's not a multi-object, it is returned.	395	* If it's not a multi-object, it is returned.
387	*/	396	*/
388		397
		398	object *
389	object *get_nearest_part(object *op, const object *pl) {	399	get_nearest_part (object *op, const object *pl)
		400	{
390	object *tmp,*closest;	401	object *tmp, *closest;
391	int last_dist,i;	402	int last_dist, i;
		403
392	if(op->more==NULL)	404	if (op->more == NULL)
393	return op;	405	return op;
394	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	406	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
395	if((i=distance(tmp,pl))<last_dist)	407	if ((i = distance (tmp, pl)) < last_dist)
396	closest=tmp,last_dist=i;	408	closest = tmp, last_dist = i;
397	return closest;	409	return closest;
398	}	410	}
399		411
400	/*	412	/*
401	* Returns the object which has the count-variable equal to the argument.	413	* Returns the object which has the count-variable equal to the argument.
402	*/	414	*/
403		415
		416	object *
404	object *find_object(tag_t i) {	417	find_object (tag_t i)
405	object *op;	418	{
406	for(op=objects;op!=NULL;op=op->next)	419	for (object *op = object::first; op; op = op->next)
407	if(op->count==i)	420	if (op->count == i)
408	break;	421	return op;
		422
409	return op;	423	return 0;
410	}	424	}
411		425
412	/*	426	/*
413	* Returns the first object which has a name equal to the argument.	427	* Returns the first object which has a name equal to the argument.
414	* Used only by the patch command, but not all that useful.	428	* Used only by the patch command, but not all that useful.
415	* Enables features like "patch <name-of-other-player> food 999"	429	* Enables features like "patch <name-of-other-player> food 999"
416	*/	430	*/
417		431
		432	object *
418	object *find_object_name(const char *str) {	433	find_object_name (const char *str)
419	const char *name=add_string(str);	434	{
		435	shstr_cmp str_ (str);
420	object *op;	436	object *op;
		437
421	for(op=objects;op!=NULL;op=op->next)	438	for (op = object::first; op != NULL; op = op->next)
422	if(op->name==name)	439	if (op->name == str_)
423	break;	440	break;
424	free_string(name);	441
425	return op;	442	return op;
426	}	443	}
427		444
		445	void
428	void free_all_object_data(void) {	446	free_all_object_data ()
429	#ifdef MEMORY_DEBUG
430	object *op, *next;
431
432	for (op=free_objects; op!=NULL; ) {
433	next=op->next;
434	free(op);
435	nrofallocobjects--;
436	nroffreeobjects--;
437	op=next;
438	}
439	#endif
440	LOG(llevDebug,"%d allocated objects, %d free objects, STARMAX=%d\n",
441	nrofallocobjects, nroffreeobjects,STARTMAX);
442	}
443
444	/*
445	* Returns the object which this object marks as being the owner.
446	* A id-scheme is used to avoid pointing to objects which have been
447	* freed and are now reused. If this is detected, the owner is
448	* set to NULL, and NULL is returned.
449	* Changed 2004-02-12 - if the player is setting at the play again
450	* prompt, he is removed, and we don't want to treat him as an owner of
451	* anything, so check removed flag. I don't expect that this should break
452	* anything - once an object is removed, it is basically dead anyways.
453	*/
454
455	object *get_owner(object *op) {
456	if(op->owner==NULL)
457	return NULL;
458
459	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
460	op->owner->count==op->ownercount)
461	return op->owner;
462
463	op->owner=NULL;
464	op->ownercount=0;
465	return NULL;
466	}
467
468	void clear_owner(object *op)
469	{	447	{
470	if (!op) return;	448	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
471
472	if (op->owner && op->ownercount == op->owner->count)
473	op->owner->refcount--;
474
475	op->owner = NULL;
476	op->ownercount = 0;
477	}	449	}
478
479
480		450
481	/*	451	/*
482	* Sets the owner and sets the skill and exp pointers to owner's current	452	* Sets the owner and sets the skill and exp pointers to owner's current
483	* skill and experience objects.	453	* skill and experience objects.
484	*/	454	*/
485	void set_owner (object *op, object *owner)	455	void
		456	object::set_owner (object *owner)
486	{	457	{
487	if(owner==NULL||op==NULL)	458	if (!owner)
488	return;	459	return;
489		460
490	/* next line added to allow objects which own objects */	461	/* next line added to allow objects which own objects */
491	/* Add a check for ownercounts in here, as I got into an endless loop	462	/* Add a check for ownercounts in here, as I got into an endless loop
492	* with the fireball owning a poison cloud which then owned the	463	* with the fireball owning a poison cloud which then owned the
493	* fireball. I believe that was caused by one of the objects getting	464	* fireball. I believe that was caused by one of the objects getting
494	* freed and then another object replacing it. Since the ownercounts	465	* freed and then another object replacing it. Since the ownercounts
495	* didn't match, this check is valid and I believe that cause is valid.	466	* didn't match, this check is valid and I believe that cause is valid.
496	*/	467	*/
497	while (owner->owner && owner!=owner->owner &&	468	while (owner->owner)
498	owner->ownercount==owner->owner->count) owner=owner->owner;	469	owner = owner->owner;
499		470
500	/* IF the owner still has an owner, we did not resolve to a final owner.
501	* so lets not add to that.
502	*/
503	if (owner->owner) return;
504
505	op->owner=owner;	471	this->owner = owner;
506
507	op->ownercount=owner->count;
508	owner->refcount++;
509
510	}
511
512	/* Set the owner to clone's current owner and set the skill and experience
513	* objects to clone's objects (typically those objects that where the owner's
514	* current skill and experience objects at the time when clone's owner was
515	* set - not the owner's current skill and experience objects).
516	*
517	* Use this function if player created an object (e.g. fire bullet, swarm
518	* spell), and this object creates further objects whose kills should be
519	* accounted for the player's original skill, even if player has changed
520	* skills meanwhile.
521	*/
522	void copy_owner (object *op, object *clone)
523	{
524	object *owner = get_owner (clone);
525	if (owner == NULL) {
526	/* players don't have owners - they own themselves. Update
527	* as appropriate.
528	*/
529	if (clone->type == PLAYER) owner=clone;
530	else return;
531	}
532	set_owner(op, owner);
533
534	}
535
536	/*
537	* Resets vital variables in an object
538	*/
539
540	void reset_object(object *op) {
541
542	op->name = NULL;
543	op->name_pl = NULL;
544	op->title = NULL;
545	op->race = NULL;
546	op->slaying = NULL;
547	op->skill = NULL;
548	op->msg = NULL;
549	op->materialname = NULL;
550	op->lore = NULL;
551	op->current_weapon_script = NULL;
552	clear_object(op);
553	}	472	}
554		473
555	/* Zero the key_values on op, decrementing the shared-string	474	/* Zero the key_values on op, decrementing the shared-string
556	* refcounts and freeing the links.	475	* refcounts and freeing the links.
557	*/	476	*/
		477	static void
558	static void free_key_values(object * op) {	478	free_key_values (object *op)
559	key_value * i;	479	{
560	key_value * next = NULL;	480	for (key_value *i = op->key_values; i != 0;)
561		481	{
562	if (op->key_values == NULL) return;	482	key_value *next = i->next;
		483	delete i;
		484
		485	i = next;
563		486	}
564	for (i = op->key_values; i != NULL; i = next) {	487
565	/* Store next *first*. */
566	next = i->next;
567
568	if (i->key) FREE_AND_CLEAR_STR(i->key);
569	if (i->value) FREE_AND_CLEAR_STR(i->value);
570	i->next = NULL;
571	free(i);
572	}
573
574	op->key_values = NULL;	488	op->key_values = 0;
575	}	489	}
576		490
		491	void object::clear ()
		492	{
		493	attachable_base::clear ();
577		494
578	/*
579	* clear_object() frees everything allocated by an object, and also
580	* clears all variables and flags to default settings.
581	*/
582
583	void clear_object(object *op) {
584	op->clear ();
585
586	event *evt;
587	event *evt2;
588
589	/* redo this to be simpler/more efficient. Was also seeing
590	* crashes in the old code. Move this to the top - am
591	* seeing periodic crashes in this code, and would like to have
592	* as much info available as possible (eg, object name).
593	*/
594	for (evt = op->events; evt; evt=evt2) {
595	evt2 = evt->next;
596
597	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
598	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
599	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
600
601	free(evt);
602	}
603	op->events = NULL;
604
605	free_key_values(op);	495	free_key_values (this);
606		496
607	/* the memset will clear all these values for us, but we need	497	owner = 0;
608	* to reduce the refcount on them.	498	name = 0;
609	*/	499	name_pl = 0;
610	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);	500	title = 0;
611	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);	501	race = 0;
612	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);	502	slaying = 0;
613	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);	503	skill = 0;
614	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);	504	msg = 0;
615	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);	505	lore = 0;
616	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);	506	custom_name = 0;
617	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);	507	materialname = 0;
618	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);	508	contr = 0;
		509	below = 0;
		510	above = 0;
		511	inv = 0;
		512	container = 0;
		513	env = 0;
		514	more = 0;
		515	head = 0;
		516	map = 0;
		517	active_next = 0;
		518	active_prev = 0;
619		519
		520	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
620		521
621	memset((void*)op, 0, sizeof (object_special));
622	/* Below here, we clear things that are not done by the memset,
623	* or set default values that are not zero.
624	*/
625	/* This is more or less true */
626	SET_FLAG(op, FLAG_REMOVED);	522	SET_FLAG (this, FLAG_REMOVED);
627		523
628
629	op->contr = NULL;
630	op->below=NULL;
631	op->above=NULL;
632	op->inv=NULL;
633	op->events=NULL;
634	op->container=NULL;
635	op->env=NULL;
636	op->more=NULL;
637	op->head=NULL;
638	op->map=NULL;
639	op->refcount=0;
640	op->active_next = NULL;
641	op->active_prev = NULL;
642	/* What is not cleared is next, prev, and count */	524	/* What is not cleared is next, prev, and count */
643		525
644	op->expmul=1.0;	526	expmul = 1.0;
645	op->face = blank_face;	527	face = blank_face;
646	op->attacked_by_count = (tag_t) -1;	528
647	if (settings.casting_time)	529	if (settings.casting_time)
648	op->casting_time = -1;	530	casting_time = -1;
649
650	}	531	}
651		532
652	/*	533	/*
653	* copy object first frees everything allocated by the second object,	534	* copy_to first frees everything allocated by the dst object,
654	* and then copies the contends of the first object into the second	535	* and then copies the contents of itself into the second
655	* object, allocating what needs to be allocated. Basically, any	536	* object, allocating what needs to be allocated. Basically, any
656	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	537	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
657	* if the first object is freed, the pointers in the new object	538	* if the first object is freed, the pointers in the new object
658	* will point at garbage.	539	* will point at garbage.
659	*/	540	*/
		541	void
		542	object::copy_to (object *dst)
		543	{
		544	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
		545	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
660		546
661	void copy_object(object *op2, object *op) {	547	*(object_copy *)dst = *this;
662	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);	548	*(object_pod *)dst = *this;
663	event *evt, *evt2, *evt_new;
664		549
665	op->clear ();	550	if (self || cb)
		551	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
666		552
667	/* Decrement the refcounts, but don't bother zeroing the fields;	553	if (is_freed)
668	they'll be overwritten by memcpy. */	554	SET_FLAG (dst, FLAG_FREED);
669	if(op->name!=NULL) free_string(op->name);
670	if(op->name_pl!=NULL) free_string(op->name_pl);
671	if(op->title!=NULL) free_string(op->title);
672	if(op->race!=NULL) free_string(op->race);
673	if(op->slaying!=NULL) free_string(op->slaying);
674	if(op->skill!=NULL) free_string(op->skill);
675	if(op->msg!=NULL) free_string(op->msg);
676	if(op->lore!=NULL) free_string(op->lore);
677	if(op->materialname != NULL) free_string(op->materialname);
678	if(op->custom_name != NULL) free_string(op->custom_name);
679		555
680	/* Basically, same code as from clear_object() */	556	if (is_removed)
681	for (evt = op->events; evt; evt=evt2) {	557	SET_FLAG (dst, FLAG_REMOVED);
682	evt2 = evt->next;
683		558
684	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);	559	if (speed < 0)
685	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
686	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
687
688	free(evt);
689	}
690	op->events = NULL;
691
692	free_key_values(op);
693
694	*(object_special *)op = *(object_special *)op2;
695	op->clone (op2);
696
697	if(is_freed) SET_FLAG(op,FLAG_FREED);
698	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
699	if(op->name!=NULL) add_refcount(op->name);
700	if(op->name_pl!=NULL) add_refcount(op->name_pl);
701	if(op->title!=NULL) add_refcount(op->title);
702	if(op->race!=NULL) add_refcount(op->race);
703	if(op->slaying!=NULL) add_refcount(op->slaying);
704	if(op->skill!=NULL) add_refcount(op->skill);
705	if(op->lore!=NULL) add_refcount(op->lore);
706	if(op->msg!=NULL) add_refcount(op->msg);
707	if(op->custom_name!=NULL) add_refcount(op->custom_name);
708	if (op->materialname != NULL) add_refcount(op->materialname);
709
710	if((op2->speed<0) && !editor)
711	op->speed_left=op2->speed_left-RANDOM()%200/100.0;	560	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
712		561
713	/* Copy over event information */
714	evt2 = NULL;
715	for (evt = op2->events; evt; evt=evt->next) {
716	evt_new = (event *) malloc(sizeof(event));
717	memcpy(evt_new, evt, sizeof(event));
718	if (evt_new->hook) add_refcount(evt_new->hook);
719	if (evt_new->plugin) add_refcount(evt_new->plugin);
720	if (evt_new->options) add_refcount(evt_new->options);
721	evt_new->next = NULL;
722
723	/* Try to be a little clever here, and store away the
724	* last event we copied, so that its simpler to update the
725	* pointer.
726	*/
727	if (evt2)
728	evt2->next = evt_new;
729	else
730	op->events = evt_new;
731
732	evt2 = evt_new;
733	}
734	/* Copy over key_values, if any. */	562	/* Copy over key_values, if any. */
735	if (op2->key_values != NULL) {	563	if (key_values)
736	key_value * tail = NULL;	564	{
		565	key_value *tail = 0;
737	key_value * i;	566	key_value *i;
738		567
739	op->key_values = NULL;	568	dst->key_values = 0;
740		569
741	for (i = op2->key_values; i != NULL; i = i->next) {	570	for (i = key_values; i; i = i->next)
742	key_value * new_link = (key_value *) malloc(sizeof(key_value));	571	{
		572	key_value *new_link = new key_value;
743		573
744	new_link->next = NULL;	574	new_link->next = 0;
745	new_link->key = add_refcount(i->key);	575	new_link->key = i->key;
746	if (i->value)	576	new_link->value = i->value;
747	new_link->value = add_refcount(i->value);
748	else
749	new_link->value = NULL;
750		577
751	/* Try and be clever here, too. */	578	/* Try and be clever here, too. */
752	if (op->key_values == NULL) {	579	if (!dst->key_values)
753	op->key_values = new_link;	580	{
754	tail = new_link;	581	dst->key_values = new_link;
755	} else {	582	tail = new_link;
756	tail->next = new_link;	583	}
757	tail = new_link;	584	else
		585	{
		586	tail->next = new_link;
		587	tail = new_link;
		588	}
		589	}
758	}	590	}
759	}
760	}
761		591
762	update_ob_speed(op);	592	update_ob_speed (dst);
763	}	593	}
764		594
765	/*
766	* expand_objects() allocates more objects for the list of unused objects.
767	* It is called from get_object() if the unused list is empty.
768	*/
769
770	void expand_objects(void) {
771	int i;
772	object *obj;
773	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));
774
775	if(obj==NULL)
776	fatal(OUT_OF_MEMORY);
777	free_objects=obj;
778	obj[0].prev=NULL;
779	obj[0].next= &obj[1],
780	SET_FLAG(&(obj[0]), FLAG_REMOVED);
781	SET_FLAG(&(obj[0]), FLAG_FREED);
782
783	for(i=1;i<OBJ_EXPAND-1;i++) {
784	obj[i].next= &obj[i+1],
785	obj[i].prev= &obj[i-1],
786	SET_FLAG(&(obj[i]), FLAG_REMOVED);
787	SET_FLAG(&(obj[i]), FLAG_FREED);
788	}
789	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
790	obj[OBJ_EXPAND-1].next=NULL,
791	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
792	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
793
794	nrofallocobjects += OBJ_EXPAND;
795	nroffreeobjects += OBJ_EXPAND;
796	}
797
798	/*
799	* get_object() grabs an object from the list of unused objects, makes
800	* sure it is initialised, and returns it.
801	* If there are no free objects, expand_objects() is called to get more.
802	*/
803
804	object *get_object(void) {
805	object *op;	595	object *
806		596	object::clone ()
807	if(free_objects==NULL) {	597	{
808	expand_objects();	598	object *neu = create ();
809	}	599	copy_to (neu);
810	op=free_objects;
811	#ifdef MEMORY_DEBUG
812	/* The idea is hopefully by doing a realloc, the memory
813	* debugging program will now use the current stack trace to
814	* report leaks.
815	*/
816	op = realloc(op, sizeof(object));
817	SET_FLAG(op, FLAG_REMOVED);
818	SET_FLAG(op, FLAG_FREED);
819	#endif
820
821	if(!QUERY_FLAG(op,FLAG_FREED)) {
822	LOG(llevError,"Fatal: Getting busy object.\n");
823	}
824	free_objects=op->next;
825	if(free_objects!=NULL)
826	free_objects->prev=NULL;
827	op->count= ++ob_count;
828	op->name=NULL;
829	op->name_pl=NULL;
830	op->title=NULL;
831	op->race=NULL;
832	op->slaying=NULL;
833	op->skill = NULL;
834	op->lore=NULL;
835	op->msg=NULL;
836	op->materialname=NULL;
837	op->next=objects;
838	op->prev=NULL;
839	op->active_next = NULL;
840	op->active_prev = NULL;
841	if(objects!=NULL)
842	objects->prev=op;
843	objects=op;
844	clear_object(op);
845	SET_FLAG(op,FLAG_REMOVED);
846	nroffreeobjects--;
847	return op;	600	return neu;
848	}	601	}
849		602
850	/*	603	/*
851	* If an object with the IS_TURNABLE() flag needs to be turned due	604	* If an object with the IS_TURNABLE() flag needs to be turned due
852	* to the closest player being on the other side, this function can	605	* to the closest player being on the other side, this function can
853	* be called to update the face variable, _and_ how it looks on the map.	606	* be called to update the face variable, _and_ how it looks on the map.
854	*/	607	*/
855		608
		609	void
856	void update_turn_face(object *op) {	610	update_turn_face (object *op)
		611	{
857	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	612	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
858	return;	613	return;
859	SET_ANIMATION(op, op->direction);	614	SET_ANIMATION (op, op->direction);
860	update_object(op,UP_OBJ_FACE);	615	update_object (op, UP_OBJ_FACE);
861	}	616	}
862		617
863	/*	618	/*
864	* Updates the speed of an object. If the speed changes from 0 to another	619	* Updates the speed of an object. If the speed changes from 0 to another
865	* value, or vice versa, then add/remove the object from the active list.	620	* value, or vice versa, then add/remove the object from the active list.
866	* This function needs to be called whenever the speed of an object changes.	621	* This function needs to be called whenever the speed of an object changes.
867	*/	622	*/
868		623	void
869	void update_ob_speed(object *op) {	624	update_ob_speed (object *op)
		625	{
870	extern int arch_init;	626	extern int arch_init;
871		627
872	/* No reason putting the archetypes objects on the speed list,	628	/* No reason putting the archetypes objects on the speed list,
873	* since they never really need to be updated.	629	* since they never really need to be updated.
874	*/	630	*/
875		631
876	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	632	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		633	{
877	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	634	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
878	#ifdef MANY_CORES	635	#ifdef MANY_CORES
879	abort();	636	abort ();
880	#else	637	#else
881	op->speed = 0;	638	op->speed = 0;
882	#endif	639	#endif
883	}	640	}
		641
884	if (arch_init) {	642	if (arch_init)
885	return;
886	}
887	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
888	/* If already on active list, don't do anything */
889	if (op->active_next || op->active_prev || op==active_objects)
890	return;	643	return;
891		644
		645	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		646	{
		647	/* If already on active list, don't do anything */
		648	if (op->active_next || op->active_prev || op == active_objects)
		649	return;
		650
892	/* process_events() expects us to insert the object at the beginning	651	/* process_events() expects us to insert the object at the beginning
893	* of the list. */	652	* of the list. */
894	op->active_next = active_objects;	653	op->active_next = active_objects;
		654
895	if (op->active_next!=NULL)	655	if (op->active_next != NULL)
896	op->active_next->active_prev = op;	656	op->active_next->active_prev = op;
		657
897	active_objects = op;	658	active_objects = op;
		659	}
		660	else
898	}	661	{
899	else {
900	/* If not on the active list, nothing needs to be done */	662	/* If not on the active list, nothing needs to be done */
901	if (!op->active_next && !op->active_prev && op!=active_objects)	663	if (!op->active_next && !op->active_prev && op != active_objects)
902	return;	664	return;
903		665
904	if (op->active_prev==NULL) {	666	if (op->active_prev == NULL)
		667	{
905	active_objects = op->active_next;	668	active_objects = op->active_next;
		669
906	if (op->active_next!=NULL)	670	if (op->active_next != NULL)
907	op->active_next->active_prev = NULL;	671	op->active_next->active_prev = NULL;
908	}	672	}
909	else {	673	else
		674	{
910	op->active_prev->active_next = op->active_next;	675	op->active_prev->active_next = op->active_next;
		676
911	if (op->active_next)	677	if (op->active_next)
912	op->active_next->active_prev = op->active_prev;	678	op->active_next->active_prev = op->active_prev;
913	}	679	}
		680
914	op->active_next = NULL;	681	op->active_next = NULL;
915	op->active_prev = NULL;	682	op->active_prev = NULL;
916	}	683	}
917	}	684	}
918		685
919	/* This function removes object 'op' from the list of active	686	/* This function removes object 'op' from the list of active
920	* objects.	687	* objects.
…		…
922	* reference maps where you don't want an object that isn't	689	* reference maps where you don't want an object that isn't
923	* in play chewing up cpu time getting processed.	690	* in play chewing up cpu time getting processed.
924	* The reverse of this is to call update_ob_speed, which	691	* The reverse of this is to call update_ob_speed, which
925	* will do the right thing based on the speed of the object.	692	* will do the right thing based on the speed of the object.
926	*/	693	*/
		694	void
927	void remove_from_active_list(object *op)	695	remove_from_active_list (object *op)
928	{	696	{
929	/* If not on the active list, nothing needs to be done */	697	/* If not on the active list, nothing needs to be done */
930	if (!op->active_next && !op->active_prev && op!=active_objects)	698	if (!op->active_next && !op->active_prev && op != active_objects)
931	return;	699	return;
932		700
933	if (op->active_prev==NULL) {	701	if (op->active_prev == NULL)
		702	{
934	active_objects = op->active_next;	703	active_objects = op->active_next;
935	if (op->active_next!=NULL)	704	if (op->active_next != NULL)
936	op->active_next->active_prev = NULL;	705	op->active_next->active_prev = NULL;
		706	}
		707	else
937	}	708	{
938	else {
939	op->active_prev->active_next = op->active_next;	709	op->active_prev->active_next = op->active_next;
940	if (op->active_next)	710	if (op->active_next)
941	op->active_next->active_prev = op->active_prev;	711	op->active_next->active_prev = op->active_prev;
942	}	712	}
943	op->active_next = NULL;	713	op->active_next = NULL;
944	op->active_prev = NULL;	714	op->active_prev = NULL;
945	}	715	}
946		716
947	/*	717	/*
948	* update_object() updates the array which represents the map.	718	* update_object() updates the array which represents the map.
949	* It takes into account invisible objects (and represent squares covered	719	* It takes into account invisible objects (and represent squares covered
…		…
964	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	734	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
965	* as that is easier than trying to look at what may have changed.	735	* as that is easier than trying to look at what may have changed.
966	* UP_OBJ_FACE: only the objects face has changed.	736	* UP_OBJ_FACE: only the objects face has changed.
967	*/	737	*/
968		738
		739	void
969	void update_object(object *op, int action) {	740	update_object (object *op, int action)
		741	{
970	int update_now=0, flags;	742	int update_now = 0, flags;
971	MoveType move_on, move_off, move_block, move_slow;	743	MoveType move_on, move_off, move_block, move_slow;
972		744
973	if (op == NULL) {	745	if (op == NULL)
		746	{
974	/* this should never happen */	747	/* this should never happen */
975	LOG(llevDebug,"update_object() called for NULL object.\n");	748	LOG (llevDebug, "update_object() called for NULL object.\n");
976	return;	749	return;
977	}
978		750	}
		751
979	if(op->env!=NULL) {	752	if (op->env != NULL)
		753	{
980	/* Animation is currently handled by client, so nothing	754	/* Animation is currently handled by client, so nothing
981	* to do in this case.	755	* to do in this case.
982	*/	756	*/
983	return;	757	return;
984	}	758	}
985		759
986	/* If the map is saving, don't do anything as everything is	760	/* If the map is saving, don't do anything as everything is
987	* going to get freed anyways.	761	* going to get freed anyways.
988	*/	762	*/
989	if (!op->map || op->map->in_memory == MAP_SAVING) return;	763	if (!op->map || op->map->in_memory == MAP_SAVING)
990		764	return;
		765
991	/* make sure the object is within map boundaries */	766	/* make sure the object is within map boundaries */
992	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	767	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))
993	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	768	{
994	LOG(llevError,"update_object() called for object out of map!\n");	769	LOG (llevError, "update_object() called for object out of map!\n");
995	#ifdef MANY_CORES	770	#ifdef MANY_CORES
996	abort();	771	abort ();
997	#endif	772	#endif
998	return;	773	return;
999	}
1000		774	}
		775
1001	flags = GET_MAP_FLAGS(op->map, op->x, op->y);	776	flags = GET_MAP_FLAGS (op->map, op->x, op->y);
1002	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);	777	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
1003	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	778	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1004	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	779	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1005	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	780	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1006	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);	781	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
1007		782
1008	if (action == UP_OBJ_INSERT) {	783	if (action == UP_OBJ_INSERT)
		784	{
1009	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	785	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))
1010	update_now=1;	786	update_now = 1;
1011		787
1012	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	788	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))
1013	update_now=1;	789	update_now = 1;
1014		790
1015	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	791	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))
1016	update_now=1;	792	update_now = 1;
1017		793
1018	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	794	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
1019	update_now=1;	795	update_now = 1;
1020		796
		797	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
		798	update_now = 1;
		799
1021	if ((move_on | op->move_on) != move_on) update_now=1;	800	if ((move_on | op->move_on) != move_on)
		801	update_now = 1;
		802
1022	if ((move_off | op->move_off) != move_off) update_now=1;	803	if ((move_off | op->move_off) != move_off)
		804	update_now = 1;
		805
1023	/* This isn't perfect, but I don't expect a lot of objects to	806	/* This isn't perfect, but I don't expect a lot of objects to
1024	* to have move_allow right now.	807	* to have move_allow right now.
1025	*/	808	*/
1026	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	809	if (((move_block | op->move_block) & ~op->move_allow) != move_block)
1027	update_now=1;	810	update_now = 1;
		811
1028	if ((move_slow | op->move_slow) != move_slow) update_now=1;	812	if ((move_slow | op->move_slow) != move_slow)
		813	update_now = 1;
1029	}	814	}
		815
1030	/* if the object is being removed, we can't make intelligent	816	/* if the object is being removed, we can't make intelligent
1031	* decisions, because remove_ob can't really pass the object	817	* decisions, because remove_ob can't really pass the object
1032	* that is being removed.	818	* that is being removed.
1033	*/	819	*/
1034	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	820	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1035	update_now=1;	821	update_now = 1;
1036	} else if (action == UP_OBJ_FACE) {	822	else if (action == UP_OBJ_FACE)
1037	/* Nothing to do for that case */	823	/* Nothing to do for that case */ ;
1038	}
1039	else {	824	else
1040	LOG(llevError,"update_object called with invalid action: %d\n", action);	825	LOG (llevError, "update_object called with invalid action: %d\n", action);
1041	}
1042		826
1043	if (update_now) {	827	if (update_now)
		828	{
1044	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);	829	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1045	update_position(op->map, op->x, op->y);	830	update_position (op->map, op->x, op->y);
1046	}	831	}
1047		832
1048	if(op->more!=NULL)	833	if (op->more != NULL)
1049	update_object(op->more, action);	834	update_object (op->more, action);
1050	}	835	}
1051		836
		837	object::vector object::mortals;
		838	object::vector object::objects; // not yet used
		839	object *object::first;
		840
		841	void object::free_mortals ()
		842	{
		843	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
		844	if ((*i)->refcnt)
		845	++i; // further delay freeing
		846	else
		847	{
		848	delete *i;
		849	mortals.erase (i);
		850	}
		851	}
		852
		853	object::object ()
		854	{
		855	SET_FLAG (this, FLAG_REMOVED);
		856
		857	expmul = 1.0;
		858	face = blank_face;
		859	}
		860
		861	object::~object ()
		862	{
		863	free_key_values (this);
		864	}
		865
		866	void object::link ()
		867	{
		868	count = ++ob_count;
		869	uuid = gen_uuid ();
		870
		871	prev = 0;
		872	next = object::first;
		873
		874	if (object::first)
		875	object::first->prev = this;
		876
		877	object::first = this;
		878	}
		879
		880	void object::unlink ()
		881	{
		882	if (this == object::first)
		883	object::first = next;
		884
		885	/* Remove this object from the list of used objects */
		886	if (prev) prev->next = next;
		887	if (next) next->prev = prev;
		888
		889	prev = 0;
		890	next = 0;
		891	}
		892
		893	object *object::create ()
		894	{
		895	object *op = new object;
		896	op->link ();
		897	return op;
		898	}
1052		899
1053	/*	900	/*
1054	* free_object() frees everything allocated by an object, removes	901	* free_object() frees everything allocated by an object, removes
1055	* it from the list of used objects, and puts it on the list of	902	* it from the list of used objects, and puts it on the list of
1056	* free objects. The IS_FREED() flag is set in the object.	903	* free objects. The IS_FREED() flag is set in the object.
1057	* The object must have been removed by remove_ob() first for	904	* The object must have been removed by remove_ob() first for
1058	* this function to succeed.	905	* this function to succeed.
1059	*	906	*
1060	* If free_inventory is set, free inventory as well. Else drop items in	907	* If destroy_inventory is set, free inventory as well. Else drop items in
1061	* inventory to the ground.	908	* inventory to the ground.
1062	*/	909	*/
		910	void object::destroy (bool destroy_inventory)
		911	{
		912	if (QUERY_FLAG (this, FLAG_FREED))
		913	return;
1063		914
1064	void free_object(object *ob) {	915	if (QUERY_FLAG (this, FLAG_FRIENDLY))
1065	free_object2(ob, 0);	916	remove_friendly_object (this);
1066	}
1067	void free_object2(object *ob, int free_inventory) {
1068	object *tmp,*op;
1069		917
1070	ob->clear ();
1071
1072	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	918	if (!QUERY_FLAG (this, FLAG_REMOVED))
1073	LOG(llevDebug,"Free object called with non removed object\n");	919	remove ();
1074	dump_object(ob);	920
1075	#ifdef MANY_CORES	921	SET_FLAG (this, FLAG_FREED);
1076	abort();	922
1077	#endif	923	if (more)
1078	}	924	{
1079	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	925	more->destroy (destroy_inventory);
1080	LOG(llevMonster,"Warning: tried to free friendly object.\n");	926	more = 0;
1081	remove_friendly_object(ob);	927	}
		928
		929	if (inv)
1082	}	930	{
1083	if(QUERY_FLAG(ob,FLAG_FREED)) {
1084	dump_object(ob);
1085	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);
1086	return;
1087	}
1088	if(ob->more!=NULL) {
1089	free_object2(ob->more, free_inventory);
1090	ob->more=NULL;
1091	}
1092	if (ob->inv) {
1093	/* Only if the space blocks everything do we not process -	931	/* Only if the space blocks everything do we not process -
1094	* if some form of movemnt is allowed, let objects	932	* if some form of movement is allowed, let objects
1095	* drop on that space.	933	* drop on that space.
1096	*/	934	*/
1097	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	935	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
1098	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	936	{
1099	{	937	object *op = inv;
1100	op=ob->inv;	938
1101	while(op!=NULL) {	939	while (op)
1102	tmp=op->below;	940	{
1103	remove_ob(op);	941	object *tmp = op->below;
1104	free_object2(op, free_inventory);	942	op->destroy (destroy_inventory);
1105	op=tmp;	943	op = tmp;
		944	}
		945	}
		946	else
		947	{ /* Put objects in inventory onto this space */
		948	object *op = inv;
		949
		950	while (op)
		951	{
		952	object *tmp = op->below;
		953
		954	op->remove ();
		955
		956	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
		957	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
		958	op->destroy ();
		959	else
		960	{
		961	op->x = x;
		962	op->y = y;
		963	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
		964	}
		965
		966	op = tmp;
		967	}
		968	}
1106	}	969	}
1107	}	970
1108	else { /* Put objects in inventory onto this space */	971	// hack to ensure that freed objects still have a valid map
1109	op=ob->inv;	972	{
1110	while(op!=NULL) {	973	static maptile *freed_map; // freed objects are moved here to avoid crashes
1111	tmp=op->below;	974
1112	remove_ob(op);	975	if (!freed_map)
1113	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||	976	{
1114	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))	977	freed_map = new maptile;
1115	free_object(op);	978
1116	else {	979	freed_map->name = "/internal/freed_objects_map";
1117	op->x=ob->x;	980	freed_map->width = 3;
1118	op->y=ob->y;	981	freed_map->height = 3;
1119	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */	982
1120	}	983	freed_map->allocate ();
1121	op=tmp;
1122	}
1123	}
1124	}	984	}
		985
		986	map = freed_map;
		987	x = 1;
		988	y = 1;
		989	}
		990
		991	// clear those pointers that likely might have circular references to us
		992	owner = 0;
		993	enemy = 0;
		994	attacked_by = 0;
		995
		996	// only relevant for players(?), but make sure of it anyways
		997	contr = 0;
		998
1125	/* Remove object from the active list */	999	/* Remove object from the active list */
1126	ob->speed = 0;	1000	speed = 0;
1127	update_ob_speed(ob);	1001	update_ob_speed (this);
1128		1002
1129	SET_FLAG(ob, FLAG_FREED);	1003	unlink ();
1130	ob->count = 0;
1131		1004
1132	/* Remove this object from the list of used objects */	1005	mortals.push_back (this);
1133	if(ob->prev==NULL) {
1134	objects=ob->next;
1135	if(objects!=NULL)
1136	objects->prev=NULL;
1137	}
1138	else {
1139	ob->prev->next=ob->next;
1140	if(ob->next!=NULL)
1141	ob->next->prev=ob->prev;
1142	}
1143
1144	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1145	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1146	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1147	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1148	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1149	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1150	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1151	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1152	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1153
1154
1155	/* Why aren't events freed? */
1156	free_key_values(ob);
1157
1158	#if 0 /* MEMORY_DEBUG*/
1159	/* This is a nice idea. Unfortunately, a lot of the code in crossfire
1160	* presumes the freed_object will stick around for at least a little
1161	* bit
1162	*/
1163	/* this is necessary so that memory debugging programs will
1164	* be able to accurately report source of malloc. If we recycle
1165	* objects, then some other area may be doing the get_object
1166	* and not freeing it, but the original one that malloc'd the
1167	* object will get the blame.
1168	*/
1169	free(ob);
1170	#else
1171
1172	/* Now link it with the free_objects list: */
1173	ob->prev=NULL;
1174	ob->next=free_objects;
1175	if(free_objects!=NULL)
1176	free_objects->prev=ob;
1177	free_objects=ob;
1178	nroffreeobjects++;
1179	#endif
1180	}
1181
1182	/*
1183	* count_free() returns the number of objects on the list of free objects.
1184	*/
1185
1186	int count_free(void) {
1187	int i=0;
1188	object *tmp=free_objects;
1189	while(tmp!=NULL)
1190	tmp=tmp->next, i++;
1191	return i;
1192	}
1193
1194	/*
1195	* count_used() returns the number of objects on the list of used objects.
1196	*/
1197
1198	int count_used(void) {
1199	int i=0;
1200	object *tmp=objects;
1201	while(tmp!=NULL)
1202	tmp=tmp->next, i++;
1203	return i;
1204	}
1205
1206	/*
1207	* count_active() returns the number of objects on the list of active objects.
1208	*/
1209
1210	int count_active(void) {
1211	int i=0;
1212	object *tmp=active_objects;
1213	while(tmp!=NULL)
1214	tmp=tmp->active_next, i++;
1215	return i;
1216	}	1006	}
1217		1007
1218	/*	1008	/*
1219	* sub_weight() recursively (outwards) subtracts a number from the	1009	* sub_weight() recursively (outwards) subtracts a number from the
1220	* weight of an object (and what is carried by it's environment(s)).	1010	* weight of an object (and what is carried by it's environment(s)).
1221	*/	1011	*/
1222		1012	void
1223	void sub_weight (object *op, signed long weight) {	1013	sub_weight (object *op, signed long weight)
		1014	{
1224	while (op != NULL) {	1015	while (op != NULL)
		1016	{
1225	if (op->type == CONTAINER) {	1017	if (op->type == CONTAINER)
1226	weight=(signed long)(weight*(100-op->stats.Str)/100);	1018	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1227	}	1019
1228	op->carrying-=weight;	1020	op->carrying -= weight;
1229	op = op->env;	1021	op = op->env;
1230	}	1022	}
1231	}	1023	}
1232		1024
1233	/* remove_ob(op):	1025	/* op->remove ():
1234	* This function removes the object op from the linked list of objects	1026	* This function removes the object op from the linked list of objects
1235	* which it is currently tied to. When this function is done, the	1027	* which it is currently tied to. When this function is done, the
1236	* object will have no environment. If the object previously had an	1028	* object will have no environment. If the object previously had an
1237	* environment, the x and y coordinates will be updated to	1029	* environment, the x and y coordinates will be updated to
1238	* the previous environment.	1030	* the previous environment.
1239	* Beware: This function is called from the editor as well!	1031	* Beware: This function is called from the editor as well!
1240	*/	1032	*/
1241		1033	void
1242	void remove_ob(object *op) {	1034	object::remove ()
		1035	{
1243	object *tmp,*last=NULL;	1036	object *tmp, *last = 0;
1244	object *otmp;	1037	object *otmp;
1245	tag_t tag;	1038
1246	int check_walk_off;	1039	int check_walk_off;
1247	mapstruct *m;
1248	sint16 x,y;
1249
1250		1040
1251	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1041	if (QUERY_FLAG (this, FLAG_REMOVED))
1252	dump_object(op);	1042	return;
1253	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1254		1043
1255	/* Changed it to always dump core in this case. As has been learned
1256	* in the past, trying to recover from errors almost always
1257	* make things worse, and this is a real error here - something
1258	* that should not happen.
1259	* Yes, if this was a mission critical app, trying to do something
1260	* to recover may make sense, but that is because failure of the app
1261	* may have other disastrous problems. Cf runs out of a script
1262	* so is easily enough restarted without any real problems.
1263	* MSW 2001-07-01
1264	*/
1265	abort();
1266	}
1267	if(op->more!=NULL)
1268	remove_ob(op->more);
1269
1270	SET_FLAG(op, FLAG_REMOVED);	1044	SET_FLAG (this, FLAG_REMOVED);
1271		1045
		1046	if (more)
		1047	more->remove ();
		1048
1272	/*	1049	/*
1273	* In this case, the object to be removed is in someones	1050	* In this case, the object to be removed is in someones
1274	* inventory.	1051	* inventory.
1275	*/	1052	*/
1276	if(op->env!=NULL) {	1053	if (env)
1277	if(op->nrof)	1054	{
		1055	if (nrof)
1278	sub_weight(op->env, op->weight*op->nrof);	1056	sub_weight (env, weight * nrof);
1279	else	1057	else
1280	sub_weight(op->env, op->weight+op->carrying);	1058	sub_weight (env, weight + carrying);
1281		1059
1282	/* NO_FIX_PLAYER is set when a great many changes are being	1060	/* NO_FIX_PLAYER is set when a great many changes are being
1283	* made to players inventory. If set, avoiding the call	1061	* made to players inventory. If set, avoiding the call
1284	* to save cpu time.	1062	* to save cpu time.
1285	*/	1063	*/
1286	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1064	if ((otmp = is_player_inv (env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1287	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))
1288	fix_player(otmp);	1065	fix_player (otmp);
1289		1066
1290	if(op->above!=NULL)	1067	if (above != NULL)
1291	op->above->below=op->below;	1068	above->below = below;
1292	else	1069	else
1293	op->env->inv=op->below;	1070	env->inv = below;
1294		1071
1295	if(op->below!=NULL)	1072	if (below != NULL)
1296	op->below->above=op->above;	1073	below->above = above;
1297		1074
1298	/* we set up values so that it could be inserted into	1075	/* we set up values so that it could be inserted into
1299	* the map, but we don't actually do that - it is up	1076	* the map, but we don't actually do that - it is up
1300	* to the caller to decide what we want to do.	1077	* to the caller to decide what we want to do.
1301	*/	1078	*/
1302	op->x=op->env->x,op->y=op->env->y;	1079	x = env->x, y = env->y;
1303	op->ox=op->x,op->oy=op->y;	1080	map = env->map;
1304	op->map=op->env->map;	1081	above = 0, below = 0;
1305	op->above=NULL,op->below=NULL;	1082	env = 0;
1306	op->env=NULL;	1083	}
1307	return;	1084	else if (map)
1308	}	1085	{
1309
1310	/* If we get here, we are removing it from a map */
1311	if (op->map == NULL) return;
1312
1313	x = op->x;
1314	y = op->y;
1315	m = get_map_from_coord(op->map, &x, &y);
1316
1317	if (!m) {
1318	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1319	op->map->path, op->x, op->y);
1320	/* in old days, we used to set x and y to 0 and continue.
1321	* it seems if we get into this case, something is probablye
1322	* screwed up and should be fixed.
1323	*/
1324	abort();
1325	}
1326	if (op->map != m) {
1327	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1328	op->map->path, m->path, op->x, op->y, x, y);
1329	}
1330
1331	/* Re did the following section of code - it looks like it had	1086	/* Re did the following section of code - it looks like it had
1332	* lots of logic for things we no longer care about	1087	* lots of logic for things we no longer care about
1333	*/	1088	*/
1334		1089
1335	/* link the object above us */	1090	/* link the object above us */
1336	if (op->above)	1091	if (above)
1337	op->above->below=op->below;	1092	above->below = below;
1338	else	1093	else
1339	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */	1094	SET_MAP_TOP (map, x, y, below); /* we were top, set new top */
1340		1095
1341	/* Relink the object below us, if there is one */	1096	/* Relink the object below us, if there is one */
1342	if(op->below) {	1097	if (below)
1343	op->below->above=op->above;	1098	below->above = above;
1344	} else {	1099	else
		1100	{
1345	/* Nothing below, which means we need to relink map object for this space	1101	/* Nothing below, which means we need to relink map object for this space
1346	* use translated coordinates in case some oddness with map tiling is	1102	* use translated coordinates in case some oddness with map tiling is
1347	* evident	1103	* evident
1348	*/	1104	*/
1349	if(GET_MAP_OB(m,x,y)!=op) {	1105	if (GET_MAP_OB (map, x, y) != this)
1350	dump_object(op);	1106	{
		1107	char *dump = dump_object (this);
		1108	LOG (llevError,
1351	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);	1109	"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);
1352	dump_object(GET_MAP_OB(m,x,y));	1110	free (dump);
1353	LOG(llevError,"%s\n",errmsg);	1111	dump = dump_object (GET_MAP_OB (map, x, y));
1354	}	1112	LOG (llevError, "%s\n", dump);
		1113	free (dump);
		1114	}
		1115
1355	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1116	SET_MAP_OB (map, x, y, above); /* goes on above it. */
1356	}	1117	}
1357	op->above=NULL;
1358	op->below=NULL;
1359		1118
		1119	above = 0;
		1120	below = 0;
		1121
1360	if (op->map->in_memory == MAP_SAVING)	1122	if (map->in_memory == MAP_SAVING)
1361	return;	1123	return;
1362		1124
1363	tag = op->count;
1364	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1125	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);
		1126
1365	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1127	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
		1128	{
1366	/* No point updating the players look faces if he is the object	1129	/* No point updating the players look faces if he is the object
1367	* being removed.	1130	* being removed.
1368	*/	1131	*/
1369		1132
1370	if(tmp->type==PLAYER && tmp!=op) {	1133	if (tmp->type == PLAYER && tmp != this)
		1134	{
1371	/* If a container that the player is currently using somehow gets	1135	/* If a container that the player is currently using somehow gets
1372	* removed (most likely destroyed), update the player view	1136	* removed (most likely destroyed), update the player view
1373	* appropriately.	1137	* appropriately.
1374	*/	1138	*/
1375	if (tmp->container==op) {	1139	if (tmp->container == this)
1376	CLEAR_FLAG(op, FLAG_APPLIED);	1140	{
1377	tmp->container=NULL;	1141	CLEAR_FLAG (this, FLAG_APPLIED);
1378	}	1142	tmp->container = 0;
		1143	}
		1144
1379	tmp->contr->socket.update_look=1;	1145	tmp->contr->socket->update_look = 1;
1380	}	1146	}
		1147
1381	/* See if player moving off should effect something */	1148	/* See if player moving off should effect something */
1382	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1149	if (check_walk_off
		1150	&& ((move_type & tmp->move_off)
1383	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1151	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1152	{
		1153	move_apply (tmp, this, 0);
1384		1154
1385	move_apply(tmp, op, NULL);	1155	if (destroyed ())
1386	if (was_destroyed (op, tag)) {	1156	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1387	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1157	}
1388	"leaving object\n", tmp->name, tmp->arch->name);
1389	}
1390	}
1391		1158
1392	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1159	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1393		1160
1394	if(tmp->above == tmp)	1161	if (tmp->above == tmp)
1395	tmp->above = NULL;	1162	tmp->above = 0;
1396	last=tmp;	1163
1397	}	1164	last = tmp;
		1165	}
		1166
1398	/* last == NULL of there are no objects on this space */	1167	/* last == NULL of there are no objects on this space */
1399	if (last==NULL) {	1168	if (!last)
		1169	{
1400	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1170	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1401	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1171	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1402	* those out anyways, and if there are any flags set right now, they won't	1172	* those out anyways, and if there are any flags set right now, they won't
1403	* be correct anyways.	1173	* be correct anyways.
1404	*/	1174	*/
1405	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);	1175	SET_MAP_FLAGS (map, x, y, P_NEED_UPDATE);
1406	update_position(op->map, op->x, op->y);	1176	update_position (map, x, y);
1407	}	1177	}
1408	else	1178	else
1409	update_object(last, UP_OBJ_REMOVE);	1179	update_object (last, UP_OBJ_REMOVE);
1410		1180
1411	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1181	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1412	update_all_los(op->map, op->x, op->y);	1182	update_all_los (map, x, y);
1413		1183	}
1414	}	1184	}
1415		1185
1416	/*	1186	/*
1417	* merge_ob(op,top):	1187	* merge_ob(op,top):
1418	*	1188	*
1419	* This function goes through all objects below and including top, and	1189	* This function goes through all objects below and including top, and
1420	* merges op to the first matching object.	1190	* merges op to the first matching object.
1421	* If top is NULL, it is calculated.	1191	* If top is NULL, it is calculated.
1422	* Returns pointer to object if it succeded in the merge, otherwise NULL	1192	* Returns pointer to object if it succeded in the merge, otherwise NULL
1423	*/	1193	*/
1424		1194	object *
1425	object *merge_ob(object *op, object *top) {	1195	merge_ob (object *op, object *top)
		1196	{
1426	if(!op->nrof)	1197	if (!op->nrof)
1427	return 0;	1198	return 0;
		1199
1428	if(top==NULL)	1200	if (top == NULL)
1429	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1201	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1202
1430	for(;top!=NULL;top=top->below) {	1203	for (; top != NULL; top = top->below)
		1204	{
1431	if(top==op)	1205	if (top == op)
1432	continue;	1206	continue;
1433	if (CAN_MERGE(op,top))	1207
1434	{	1208	if (object::can_merge (op, top))
		1209	{
1435	top->nrof+=op->nrof;	1210	top->nrof += op->nrof;
		1211
1436	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1212	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1437	op->weight = 0; /* Don't want any adjustements now */	1213	op->weight = 0; /* Don't want any adjustements now */
1438	remove_ob(op);	1214	op->destroy ();
1439	free_object(op);
1440	return top;	1215	return top;
1441	}	1216	}
1442	}	1217	}
		1218
1443	return NULL;	1219	return 0;
1444	}	1220	}
1445		1221
1446	/*	1222	/*
1447	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1223	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1448	* job preparing multi-part monsters	1224	* job preparing multi-part monsters
1449	*/	1225	*/
		1226	object *
1450	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1227	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1228	{
1451	object* tmp;	1229	object *tmp;
		1230
1452	if (op->head)	1231	if (op->head)
1453	op=op->head;	1232	op = op->head;
		1233
1454	for (tmp=op;tmp;tmp=tmp->more){	1234	for (tmp = op; tmp; tmp = tmp->more)
		1235	{
1455	tmp->x=x+tmp->arch->clone.x;	1236	tmp->x = x + tmp->arch->clone.x;
1456	tmp->y=y+tmp->arch->clone.y;	1237	tmp->y = y + tmp->arch->clone.y;
1457	}	1238	}
		1239
1458	return insert_ob_in_map (op, m, originator, flag);	1240	return insert_ob_in_map (op, m, originator, flag);
1459	}	1241	}
1460		1242
1461	/*	1243	/*
1462	* insert_ob_in_map (op, map, originator, flag):	1244	* insert_ob_in_map (op, map, originator, flag):
1463	* This function inserts the object in the two-way linked list	1245	* This function inserts the object in the two-way linked list
…		…
1477	* new object if 'op' was merged with other object	1259	* new object if 'op' was merged with other object
1478	* NULL if 'op' was destroyed	1260	* NULL if 'op' was destroyed
1479	* just 'op' otherwise	1261	* just 'op' otherwise
1480	*/	1262	*/
1481		1263
		1264	object *
1482	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1265	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1483	{	1266	{
1484	object *tmp, *top, *floor=NULL;	1267	object *tmp, *top, *floor = NULL;
1485	sint16 x,y;	1268	sint16 x, y;
1486		1269
1487	if (QUERY_FLAG (op, FLAG_FREED)) {	1270	if (QUERY_FLAG (op, FLAG_FREED))
		1271	{
1488	LOG (llevError, "Trying to insert freed object!\n");	1272	LOG (llevError, "Trying to insert freed object!\n");
1489	return NULL;	1273	return NULL;
		1274	}
		1275
		1276	if (m == NULL)
1490	}	1277	{
1491	if(m==NULL) {	1278	char *dump = dump_object (op);
1492	dump_object(op);
1493	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1279	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1494	return op;	1280	free (dump);
		1281	return op;
1495	}	1282	}
		1283
1496	if(out_of_map(m,op->x,op->y)) {	1284	if (out_of_map (m, op->x, op->y))
1497	dump_object(op);	1285	{
		1286	char *dump = dump_object (op);
1498	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1287	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1499	#ifdef MANY_CORES	1288	#ifdef MANY_CORES
1500	/* Better to catch this here, as otherwise the next use of this object	1289	/* Better to catch this here, as otherwise the next use of this object
1501	* is likely to cause a crash. Better to find out where it is getting	1290	* is likely to cause a crash. Better to find out where it is getting
1502	* improperly inserted.	1291	* improperly inserted.
1503	*/	1292	*/
1504	abort();	1293	abort ();
1505	#endif	1294	#endif
1506	return op;	1295	free (dump);
		1296	return op;
1507	}	1297	}
		1298
1508	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1299	if (!QUERY_FLAG (op, FLAG_REMOVED))
1509	dump_object(op);	1300	{
		1301	char *dump = dump_object (op);
1510	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1302	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1511	return op;	1303	free (dump);
		1304	return op;
1512	}	1305	}
		1306
1513	if(op->more!=NULL) {	1307	if (op->more != NULL)
		1308	{
1514	/* The part may be on a different map. */	1309	/* The part may be on a different map. */
1515		1310
1516	object *more = op->more;	1311	object *more = op->more;
1517		1312
1518	/* We really need the caller to normalize coordinates - if	1313	/* We really need the caller to normalize coordinates - if
1519	* we set the map, that doesn't work if the location is within	1314	* we set the map, that doesn't work if the location is within
1520	* a map and this is straddling an edge. So only if coordinate	1315	* a map and this is straddling an edge. So only if coordinate
1521	* is clear wrong do we normalize it.	1316	* is clear wrong do we normalize it.
1522	*/	1317	*/
1523	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1318	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1524	/* Debugging information so you can see the last coordinates this object had */
1525	more->ox = more->x;
1526	more->oy = more->y;
1527	more->map = get_map_from_coord(m, &more->x, &more->y);	1319	more->map = get_map_from_coord (m, &more->x, &more->y);
1528	} else if (!more->map) {	1320	else if (!more->map)
		1321	{
1529	/* For backwards compatibility - when not dealing with tiled maps,	1322	/* For backwards compatibility - when not dealing with tiled maps,
1530	* more->map should always point to the parent.	1323	* more->map should always point to the parent.
1531	*/	1324	*/
1532	more->map = m;	1325	more->map = m;
1533	}	1326	}
1534		1327
1535	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1328	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1329	{
1536	if ( ! op->head)	1330	if (!op->head)
1537	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1331	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1332
1538	return NULL;	1333	return NULL;
1539	}	1334	}
1540	}	1335	}
		1336
1541	CLEAR_FLAG(op,FLAG_REMOVED);	1337	CLEAR_FLAG (op, FLAG_REMOVED);
1542		1338
1543	/* Debugging information so you can see the last coordinates this object had */
1544	op->ox=op->x;
1545	op->oy=op->y;
1546
1547	/* Ideally, the caller figures this out. However, it complicates a lot	1339	/* Ideally, the caller figures this out. However, it complicates a lot
1548	* of areas of callers (eg, anything that uses find_free_spot would now	1340	* of areas of callers (eg, anything that uses find_free_spot would now
1549	* need extra work	1341	* need extra work
1550	*/	1342	*/
1551	op->map=get_map_from_coord(m, &op->x, &op->y);	1343	op->map = get_map_from_coord (m, &op->x, &op->y);
1552	x = op->x;	1344	x = op->x;
1553	y = op->y;	1345	y = op->y;
1554		1346
1555	/* this has to be done after we translate the coordinates.	1347	/* this has to be done after we translate the coordinates.
1556	*/	1348	*/
1557	if(op->nrof && !(flag & INS_NO_MERGE)) {	1349	if (op->nrof && !(flag & INS_NO_MERGE))
1558	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1350	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1559	if (CAN_MERGE(op,tmp)) {	1351	if (object::can_merge (op, tmp))
1560	op->nrof+=tmp->nrof;	1352	{
1561	remove_ob(tmp);	1353	op->nrof += tmp->nrof;
1562	free_object(tmp);	1354	tmp->destroy ();
1563	}	1355	}
1564	}
1565		1356
1566	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1357	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1567	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1358	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1359
1568	if (!QUERY_FLAG(op, FLAG_ALIVE))	1360	if (!QUERY_FLAG (op, FLAG_ALIVE))
1569	CLEAR_FLAG(op, FLAG_NO_STEAL);	1361	CLEAR_FLAG (op, FLAG_NO_STEAL);
1570		1362
1571	if (flag & INS_BELOW_ORIGINATOR) {	1363	if (flag & INS_BELOW_ORIGINATOR)
		1364	{
1572	if (originator->map != op->map || originator->x != op->x ||	1365	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1573	originator->y != op->y) {	1366	{
1574	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1367	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1575	abort();	1368	abort ();
1576	}	1369	}
		1370
1577	op->above = originator;	1371	op->above = originator;
1578	op->below = originator->below;	1372	op->below = originator->below;
1579	if (op->below) op->below->above = op;	1373
		1374	if (op->below)
		1375	op->below->above = op;
		1376	else
1580	else SET_MAP_OB(op->map, op->x, op->y, op);	1377	SET_MAP_OB (op->map, op->x, op->y, op);
		1378
1581	/* since *below* originator, no need to update top */	1379	/* since *below* originator, no need to update top */
1582	originator->below = op;	1380	originator->below = op;
1583	} else {	1381	}
		1382	else
		1383	{
1584	/* If there are other objects, then */	1384	/* If there are other objects, then */
1585	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1385	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1386	{
1586	object *last=NULL;	1387	object *last = NULL;
1587	/*	1388
		1389	/*
1588	* If there are multiple objects on this space, we do some trickier handling.	1390	* If there are multiple objects on this space, we do some trickier handling.
1589	* We've already dealt with merging if appropriate.	1391	* We've already dealt with merging if appropriate.
1590	* Generally, we want to put the new object on top. But if	1392	* Generally, we want to put the new object on top. But if
1591	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1393	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1592	* floor, we want to insert above that and no further.	1394	* floor, we want to insert above that and no further.
1593	* Also, if there are spell objects on this space, we stop processing	1395	* Also, if there are spell objects on this space, we stop processing
1594	* once we get to them. This reduces the need to traverse over all of	1396	* once we get to them. This reduces the need to traverse over all of
1595	* them when adding another one - this saves quite a bit of cpu time	1397	* them when adding another one - this saves quite a bit of cpu time
1596	* when lots of spells are cast in one area. Currently, it is presumed	1398	* when lots of spells are cast in one area. Currently, it is presumed
1597	* that flying non pickable objects are spell objects.	1399	* that flying non pickable objects are spell objects.
1598	*/	1400	*/
1599		1401
1600	while (top != NULL) {	1402	while (top != NULL)
1601	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||	1403	{
1602	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;	1404	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1603	if (QUERY_FLAG(top, FLAG_NO_PICK)	1405	floor = top;
1604	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))	1406
1605	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))	1407	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1606	{	1408	{
1607	/* We insert above top, so we want this object below this */	1409	/* We insert above top, so we want this object below this */
1608	top=top->below;	1410	top = top->below;
1609	break;	1411	break;
1610	}	1412	}
1611	last = top;	1413
1612	top = top->above;	1414	last = top;
1613	}	1415	top = top->above;
		1416	}
		1417
1614	/* Don't want top to be NULL, so set it to the last valid object */	1418	/* Don't want top to be NULL, so set it to the last valid object */
1615	top = last;	1419	top = last;
1616		1420
1617	/* We let update_position deal with figuring out what the space	1421	/* We let update_position deal with figuring out what the space
1618	* looks like instead of lots of conditions here.	1422	* looks like instead of lots of conditions here.
1619	* makes things faster, and effectively the same result.	1423	* makes things faster, and effectively the same result.
1620	*/	1424	*/
1621		1425
1622	/* Have object 'fall below' other objects that block view.	1426	/* Have object 'fall below' other objects that block view.
1623	* Unless those objects are exits, type 66	1427	* Unless those objects are exits, type 66
1624	* If INS_ON_TOP is used, don't do this processing	1428	* If INS_ON_TOP is used, don't do this processing
1625	* Need to find the object that in fact blocks view, otherwise	1429	* Need to find the object that in fact blocks view, otherwise
1626	* stacking is a bit odd.	1430	* stacking is a bit odd.
1627	*/	1431	*/
1628	if (!(flag & INS_ON_TOP) &&	1432	if (!(flag & INS_ON_TOP) &&
1629	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1433	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1630	(op->face && !op->face->visibility)) {	1434	{
1631	for (last=top; last != floor; last=last->below)	1435	for (last = top; last != floor; last = last->below)
1632	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1436	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1437	break;
1633	/* Check to see if we found the object that blocks view,	1438	/* Check to see if we found the object that blocks view,
1634	* and make sure we have a below pointer for it so that	1439	* and make sure we have a below pointer for it so that
1635	* we can get inserted below this one, which requires we	1440	* we can get inserted below this one, which requires we
1636	* set top to the object below us.	1441	* set top to the object below us.
1637	*/	1442	*/
1638	if (last && last->below && last != floor) top=last->below;	1443	if (last && last->below && last != floor)
1639	}	1444	top = last->below;
1640	} /* If objects on this space */	1445	}
		1446	} /* If objects on this space */
		1447
1641	if (flag & INS_MAP_LOAD)	1448	if (flag & INS_MAP_LOAD)
1642	top = GET_MAP_TOP(op->map,op->x,op->y);	1449	top = GET_MAP_TOP (op->map, op->x, op->y);
		1450
1643	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1451	if (flag & INS_ABOVE_FLOOR_ONLY)
		1452	top = floor;
1644		1453
1645	/* Top is the object that our object (op) is going to get inserted above.	1454	/* Top is the object that our object (op) is going to get inserted above.
1646	*/	1455	*/
1647		1456
1648	/* First object on this space */	1457	/* First object on this space */
1649	if (!top) {	1458	if (!top)
		1459	{
1650	op->above = GET_MAP_OB(op->map, op->x, op->y);	1460	op->above = GET_MAP_OB (op->map, op->x, op->y);
1651	if (op->above) op->above->below = op;	1461
		1462	if (op->above)
		1463	op->above->below = op;
		1464
1652	op->below = NULL;	1465	op->below = NULL;
1653	SET_MAP_OB(op->map, op->x, op->y, op);	1466	SET_MAP_OB (op->map, op->x, op->y, op);
1654	} else { /* get inserted into the stack above top */	1467	}
		1468	else
		1469	{ /* get inserted into the stack above top */
1655	op->above = top->above;	1470	op->above = top->above;
1656	if (op->above) op->above->below = op;	1471
		1472	if (op->above)
		1473	op->above->below = op;
		1474
1657	op->below = top;	1475	op->below = top;
1658	top->above = op;	1476	top->above = op;
1659	}	1477	}
		1478
1660	if (op->above==NULL)	1479	if (op->above == NULL)
1661	SET_MAP_TOP(op->map,op->x, op->y, op);	1480	SET_MAP_TOP (op->map, op->x, op->y, op);
1662	} /* else not INS_BELOW_ORIGINATOR */	1481	} /* else not INS_BELOW_ORIGINATOR */
1663		1482
1664	if(op->type==PLAYER)	1483	if (op->type == PLAYER)
1665	op->contr->do_los=1;	1484	op->contr->do_los = 1;
1666		1485
1667	/* If we have a floor, we know the player, if any, will be above	1486	/* If we have a floor, we know the player, if any, will be above
1668	* it, so save a few ticks and start from there.	1487	* it, so save a few ticks and start from there.
1669	*/	1488	*/
1670	if (!(flag & INS_MAP_LOAD))	1489	if (!(flag & INS_MAP_LOAD))
1671	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1490	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1672	if (tmp->type == PLAYER)	1491	if (tmp->type == PLAYER)
1673	tmp->contr->socket.update_look=1;	1492	tmp->contr->socket->update_look = 1;
1674	}
1675		1493
1676	/* If this object glows, it may affect lighting conditions that are	1494	/* If this object glows, it may affect lighting conditions that are
1677	* visible to others on this map. But update_all_los is really	1495	* visible to others on this map. But update_all_los is really
1678	* an inefficient way to do this, as it means los for all players	1496	* an inefficient way to do this, as it means los for all players
1679	* on the map will get recalculated. The players could very well	1497	* on the map will get recalculated. The players could very well
1680	* be far away from this change and not affected in any way -	1498	* be far away from this change and not affected in any way -
1681	* this should get redone to only look for players within range,	1499	* this should get redone to only look for players within range,
1682	* or just updating the P_NEED_UPDATE for spaces within this area	1500	* or just updating the P_NEED_UPDATE for spaces within this area
1683	* of effect may be sufficient.	1501	* of effect may be sufficient.
1684	*/	1502	*/
1685	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1503	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
1686	update_all_los(op->map, op->x, op->y);	1504	update_all_los (op->map, op->x, op->y);
1687		1505
1688
1689	/* updates flags (blocked, alive, no magic, etc) for this map space */	1506	/* updates flags (blocked, alive, no magic, etc) for this map space */
1690	update_object(op,UP_OBJ_INSERT);	1507	update_object (op, UP_OBJ_INSERT);
1691		1508
1692
1693	/* Don't know if moving this to the end will break anything. However,	1509	/* Don't know if moving this to the end will break anything. However,
1694	* we want to have update_look set above before calling this.	1510	* we want to have update_look set above before calling this.
1695	*	1511	*
1696	* check_move_on() must be after this because code called from	1512	* check_move_on() must be after this because code called from
1697	* check_move_on() depends on correct map flags (so functions like	1513	* check_move_on() depends on correct map flags (so functions like
1698	* blocked() and wall() work properly), and these flags are updated by	1514	* blocked() and wall() work properly), and these flags are updated by
1699	* update_object().	1515	* update_object().
1700	*/	1516	*/
1701		1517
1702	/* if this is not the head or flag has been passed, don't check walk on status */	1518	/* if this is not the head or flag has been passed, don't check walk on status */
1703
1704	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1519	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1520	{
1705	if (check_move_on(op, originator))	1521	if (check_move_on (op, originator))
1706	return NULL;	1522	return NULL;
1707		1523
1708	/* If we are a multi part object, lets work our way through the check	1524	/* If we are a multi part object, lets work our way through the check
1709	* walk on's.	1525	* walk on's.
1710	*/	1526	*/
1711	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1527	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1712	if (check_move_on (tmp, originator))	1528	if (check_move_on (tmp, originator))
1713	return NULL;	1529	return NULL;
1714	}	1530	}
		1531
1715	return op;	1532	return op;
1716	}	1533	}
1717		1534
1718	/* this function inserts an object in the map, but if it	1535	/* this function inserts an object in the map, but if it
1719	* finds an object of its own type, it'll remove that one first.	1536	* finds an object of its own type, it'll remove that one first.
1720	* op is the object to insert it under: supplies x and the map.	1537	* op is the object to insert it under: supplies x and the map.
1721	*/	1538	*/
		1539	void
1722	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1540	replace_insert_ob_in_map (const char *arch_string, object *op)
		1541	{
1723	object *tmp;	1542	object *
1724	object *tmp1;	1543	tmp;
		1544	object *
		1545	tmp1;
1725		1546
1726	/* first search for itself and remove any old instances */	1547	/* first search for itself and remove any old instances */
1727		1548
1728	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1549	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1729	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1550	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1730	remove_ob(tmp);	1551	tmp->destroy ();
1731	free_object(tmp);
1732	}
1733	}
1734		1552
1735	tmp1=arch_to_object(find_archetype(arch_string));	1553	tmp1 = arch_to_object (archetype::find (arch_string));
1736		1554
1737		1555	tmp1->x = op->x;
1738	tmp1->x = op->x; tmp1->y = op->y;	1556	tmp1->y = op->y;
1739	insert_ob_in_map(tmp1,op->map,op,0);	1557	insert_ob_in_map (tmp1, op->map, op, 0);
1740	}	1558	}
1741		1559
1742	/*	1560	/*
1743	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1561	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1744	* is returned contains nr objects, and the remaining parts contains	1562	* is returned contains nr objects, and the remaining parts contains
1745	* the rest (or is removed and freed if that number is 0).	1563	* the rest (or is removed and freed if that number is 0).
1746	* On failure, NULL is returned, and the reason put into the	1564	* On failure, NULL is returned, and the reason put into the
1747	* global static errmsg array.	1565	* global static errmsg array.
1748	*/	1566	*/
1749		1567
		1568	object *
1750	object *get_split_ob(object *orig_ob, uint32 nr) {	1569	get_split_ob (object *orig_ob, uint32 nr)
		1570	{
1751	object *newob;	1571	object *newob;
1752	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1572	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1753		1573
1754	if(orig_ob->nrof<nr) {	1574	if (orig_ob->nrof < nr)
1755	sprintf(errmsg,"There are only %d %ss.",
1756	orig_ob->nrof?orig_ob->nrof:1, orig_ob->name);
1757	return NULL;
1758	}	1575	{
		1576	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
		1577	return NULL;
		1578	}
		1579
1759	newob = object_create_clone(orig_ob);	1580	newob = object_create_clone (orig_ob);
		1581
1760	if((orig_ob->nrof-=nr)<1) {	1582	if ((orig_ob->nrof -= nr) < 1)
1761	if ( ! is_removed)	1583	orig_ob->destroy (1);
1762	remove_ob(orig_ob);
1763	free_object2(orig_ob, 1);
1764	}
1765	else if ( ! is_removed) {	1584	else if (!is_removed)
		1585	{
1766	if(orig_ob->env!=NULL)	1586	if (orig_ob->env != NULL)
1767	sub_weight (orig_ob->env,orig_ob->weight*nr);	1587	sub_weight (orig_ob->env, orig_ob->weight * nr);
1768	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1588	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1589	{
1769	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1590	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1770	LOG(llevDebug,
1771	"Error, Tried to split object whose map is not in memory.\n");	1591	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1772	return NULL;	1592	return NULL;
1773	}	1593	}
1774	}	1594	}
		1595
1775	newob->nrof=nr;	1596	newob->nrof = nr;
1776		1597
1777	return newob;	1598	return newob;
1778	}	1599	}
1779		1600
1780	/*	1601	/*
1781	* decrease_ob_nr(object, number) decreases a specified number from	1602	* decrease_ob_nr(object, number) decreases a specified number from
1782	* the amount of an object. If the amount reaches 0, the object	1603	* the amount of an object. If the amount reaches 0, the object
1783	* is subsequently removed and freed.	1604	* is subsequently removed and freed.
1784	*	1605	*
1785	* Return value: 'op' if something is left, NULL if the amount reached 0	1606	* Return value: 'op' if something is left, NULL if the amount reached 0
1786	*/	1607	*/
1787		1608
		1609	object *
1788	object *decrease_ob_nr (object *op, uint32 i)	1610	decrease_ob_nr (object *op, uint32 i)
1789	{	1611	{
1790	object *tmp;	1612	object *tmp;
1791	player *pl;	1613	player *pl;
1792		1614
1793	if (i == 0) /* objects with op->nrof require this check */	1615	if (i == 0) /* objects with op->nrof require this check */
1794	return op;	1616	return op;
1795		1617
1796	if (i > op->nrof)	1618	if (i > op->nrof)
1797	i = op->nrof;	1619	i = op->nrof;
1798		1620
1799	if (QUERY_FLAG (op, FLAG_REMOVED))	1621	if (QUERY_FLAG (op, FLAG_REMOVED))
		1622	op->nrof -= i;
		1623	else if (op->env != NULL)
		1624	{
		1625	/* is this object in the players inventory, or sub container
		1626	* therein?
		1627	*/
		1628	tmp = is_player_inv (op->env);
		1629	/* nope. Is this a container the player has opened?
		1630	* If so, set tmp to that player.
		1631	* IMO, searching through all the players will mostly
		1632	* likely be quicker than following op->env to the map,
		1633	* and then searching the map for a player.
		1634	*/
		1635	if (!tmp)
		1636	{
		1637	for (pl = first_player; pl; pl = pl->next)
		1638	if (pl->ob->container == op->env)
		1639	break;
		1640	if (pl)
		1641	tmp = pl->ob;
		1642	else
		1643	tmp = NULL;
		1644	}
		1645
		1646	if (i < op->nrof)
		1647	{
		1648	sub_weight (op->env, op->weight * i);
		1649	op->nrof -= i;
		1650	if (tmp)
		1651	{
		1652	esrv_send_item (tmp, op);
		1653	}
		1654	}
		1655	else
		1656	{
		1657	op->remove ();
		1658	op->nrof = 0;
		1659	if (tmp)
		1660	{
		1661	esrv_del_item (tmp->contr, op->count);
		1662	}
		1663	}
1800	{	1664	}
		1665	else
		1666	{
		1667	object *above = op->above;
		1668
		1669	if (i < op->nrof)
1801	op->nrof -= i;	1670	op->nrof -= i;
1802	}
1803	else if (op->env != NULL)
1804	{
1805	/* is this object in the players inventory, or sub container
1806	* therein?
1807	*/
1808	tmp = is_player_inv (op->env);
1809	/* nope. Is this a container the player has opened?
1810	* If so, set tmp to that player.
1811	* IMO, searching through all the players will mostly
1812	* likely be quicker than following op->env to the map,
1813	* and then searching the map for a player.
1814	*/
1815	if (!tmp) {
1816	for (pl=first_player; pl; pl=pl->next)
1817	if (pl->ob->container == op->env) break;
1818	if (pl) tmp=pl->ob;
1819	else tmp=NULL;
1820	}
1821
1822	if (i < op->nrof) {
1823	sub_weight (op->env, op->weight * i);
1824	op->nrof -= i;
1825	if (tmp) {
1826	esrv_send_item(tmp, op);
1827	}
1828	} else {	1671	else
		1672	{
1829	remove_ob (op);	1673	op->remove ();
1830	op->nrof = 0;	1674	op->nrof = 0;
1831	if (tmp) {
1832	esrv_del_item(tmp->contr, op->count);
1833	}	1675	}
1834	}
1835	}
1836	else
1837	{
1838	object *above = op->above;
1839		1676
1840	if (i < op->nrof) {
1841	op->nrof -= i;
1842	} else {
1843	remove_ob (op);
1844	op->nrof = 0;
1845	}
1846	/* Since we just removed op, op->above is null */	1677	/* Since we just removed op, op->above is null */
1847	for (tmp = above; tmp != NULL; tmp = tmp->above)	1678	for (tmp = above; tmp != NULL; tmp = tmp->above)
1848	if (tmp->type == PLAYER) {	1679	if (tmp->type == PLAYER)
		1680	{
1849	if (op->nrof)	1681	if (op->nrof)
1850	esrv_send_item(tmp, op);	1682	esrv_send_item (tmp, op);
1851	else	1683	else
1852	esrv_del_item(tmp->contr, op->count);	1684	esrv_del_item (tmp->contr, op->count);
1853	}	1685	}
1854	}	1686	}
1855		1687
1856	if (op->nrof) {	1688	if (op->nrof)
1857	return op;	1689	return op;
1858	} else {	1690	else
1859	free_object (op);	1691	{
		1692	op->destroy ();
1860	return NULL;	1693	return NULL;
1861	}	1694	}
1862	}	1695	}
1863		1696
1864	/*	1697	/*
1865	* add_weight(object, weight) adds the specified weight to an object,	1698	* add_weight(object, weight) adds the specified weight to an object,
1866	* and also updates how much the environment(s) is/are carrying.	1699	* and also updates how much the environment(s) is/are carrying.
1867	*/	1700	*/
1868		1701
		1702	void
1869	void add_weight (object *op, signed long weight) {	1703	add_weight (object *op, signed long weight)
		1704	{
1870	while (op!=NULL) {	1705	while (op != NULL)
		1706	{
1871	if (op->type == CONTAINER) {	1707	if (op->type == CONTAINER)
1872	weight=(signed long)(weight*(100-op->stats.Str)/100);	1708	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1873	}	1709
1874	op->carrying+=weight;	1710	op->carrying += weight;
1875	op=op->env;	1711	op = op->env;
1876	}	1712	}
1877	}	1713	}
1878		1714
		1715	object *
		1716	insert_ob_in_ob (object *op, object *where)
		1717	{
		1718	if (!where)
		1719	{
		1720	char *dump = dump_object (op);
		1721	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1722	free (dump);
		1723	return op;
		1724	}
		1725
		1726	if (where->head)
		1727	{
		1728	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1729	where = where->head;
		1730	}
		1731
		1732	return where->insert (op);
		1733	}
		1734
1879	/*	1735	/*
1880	* insert_ob_in_ob(op,environment):	1736	* env->insert (op)
1881	* This function inserts the object op in the linked list	1737	* This function inserts the object op in the linked list
1882	* inside the object environment.	1738	* inside the object environment.
1883	*	1739	*
1884	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1885	* the inventory at the last position or next to other objects of the same
1886	* type.
1887	* Frank: Now sorted by type, archetype and magic!
1888	*
1889	* The function returns now pointer to inserted item, and return value can	1740	* The function returns now pointer to inserted item, and return value can
1890	* be != op, if items are merged. -Tero	1741	* be != op, if items are merged. -Tero
1891	*/	1742	*/
1892		1743
1893	object *insert_ob_in_ob(object *op,object *where) {	1744	object *
		1745	object::insert (object *op)
		1746	{
1894	object *tmp, *otmp;	1747	object *tmp, *otmp;
1895		1748
1896	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1749	if (!QUERY_FLAG (op, FLAG_REMOVED))
1897	dump_object(op);	1750	op->remove ();
1898	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1751
1899	return op;
1900	}
1901	if(where==NULL) {
1902	dump_object(op);
1903	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1904	return op;
1905	}
1906	if (where->head) {
1907	LOG(llevDebug,
1908	"Warning: Tried to insert object wrong part of multipart object.\n");
1909	where = where->head;
1910	}
1911	if (op->more) {	1752	if (op->more)
		1753	{
1912	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1754	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1913	op->name, op->count);
1914	return op;	1755	return op;
1915	}	1756	}
		1757
1916	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1758	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1917	CLEAR_FLAG(op, FLAG_REMOVED);	1759	CLEAR_FLAG (op, FLAG_REMOVED);
1918	if(op->nrof) {	1760	if (op->nrof)
		1761	{
1919	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1762	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1920	if ( CAN_MERGE(tmp,op) ) {	1763	if (object::can_merge (tmp, op))
		1764	{
1921	/* return the original object and remove inserted object	1765	/* return the original object and remove inserted object
1922	(client needs the original object) */	1766	(client needs the original object) */
1923	tmp->nrof += op->nrof;	1767	tmp->nrof += op->nrof;
1924	/* Weight handling gets pretty funky. Since we are adding to	1768	/* Weight handling gets pretty funky. Since we are adding to
1925	* tmp->nrof, we need to increase the weight.	1769	* tmp->nrof, we need to increase the weight.
1926	*/	1770	*/
1927	add_weight (where, op->weight*op->nrof);	1771	add_weight (this, op->weight * op->nrof);
1928	SET_FLAG(op, FLAG_REMOVED);	1772	SET_FLAG (op, FLAG_REMOVED);
1929	free_object(op); /* free the inserted object */	1773	op->destroy (); /* free the inserted object */
1930	op = tmp;	1774	op = tmp;
1931	remove_ob (op); /* and fix old object's links */	1775	op->remove (); /* and fix old object's links */
1932	CLEAR_FLAG(op, FLAG_REMOVED);	1776	CLEAR_FLAG (op, FLAG_REMOVED);
1933	break;	1777	break;
1934	}	1778	}
1935		1779
1936	/* I assume combined objects have no inventory	1780	/* I assume combined objects have no inventory
1937	* We add the weight - this object could have just been removed	1781	* We add the weight - this object could have just been removed
1938	* (if it was possible to merge). calling remove_ob will subtract	1782	* (if it was possible to merge). calling remove_ob will subtract
1939	* the weight, so we need to add it in again, since we actually do	1783	* the weight, so we need to add it in again, since we actually do
1940	* the linking below	1784	* the linking below
1941	*/	1785	*/
1942	add_weight (where, op->weight*op->nrof);	1786	add_weight (this, op->weight * op->nrof);
		1787	}
1943	} else	1788	else
1944	add_weight (where, (op->weight+op->carrying));	1789	add_weight (this, (op->weight + op->carrying));
1945		1790
1946	otmp=is_player_inv(where);	1791	otmp = is_player_inv (this);
1947	if (otmp&&otmp->contr!=NULL) {	1792	if (otmp && otmp->contr)
1948	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1793	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1949	fix_player(otmp);	1794	fix_player (otmp);
1950	}
1951		1795
1952	op->map=NULL;	1796	op->map = NULL;
1953	op->env=where;	1797	op->env = this;
1954	op->above=NULL;	1798	op->above = NULL;
1955	op->below=NULL;	1799	op->below = NULL;
1956	op->x=0,op->y=0;	1800	op->x = 0, op->y = 0;
1957	op->ox=0,op->oy=0;
1958		1801
1959	/* reset the light list and los of the players on the map */	1802	/* reset the light list and los of the players on the map */
1960	if((op->glow_radius!=0)&&where->map)	1803	if ((op->glow_radius != 0) && map)
1961	{	1804	{
1962	#ifdef DEBUG_LIGHTS	1805	#ifdef DEBUG_LIGHTS
1963	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1806	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1964	op->name);
1965	#endif /* DEBUG_LIGHTS */	1807	#endif /* DEBUG_LIGHTS */
1966	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1808	if (MAP_DARKNESS (map))
		1809	update_all_los (map, x, y);
1967	}	1810	}
1968		1811
1969	/* Client has no idea of ordering so lets not bother ordering it here.	1812	/* Client has no idea of ordering so lets not bother ordering it here.
1970	* It sure simplifies this function...	1813	* It sure simplifies this function...
1971	*/	1814	*/
1972	if (where->inv==NULL)	1815	if (!inv)
1973	where->inv=op;	1816	inv = op;
1974	else {	1817	else
		1818	{
1975	op->below = where->inv;	1819	op->below = inv;
1976	op->below->above = op;	1820	op->below->above = op;
1977	where->inv = op;	1821	inv = op;
1978	}	1822	}
		1823
1979	return op;	1824	return op;
1980	}	1825	}
1981		1826
1982	/*	1827	/*
1983	* Checks if any objects has a move_type that matches objects	1828	* Checks if any objects has a move_type that matches objects
…		…
1998	* MSW 2001-07-08: Check all objects on space, not just those below	1843	* MSW 2001-07-08: Check all objects on space, not just those below
1999	* object being inserted. insert_ob_in_map may not put new objects	1844	* object being inserted. insert_ob_in_map may not put new objects
2000	* on top.	1845	* on top.
2001	*/	1846	*/
2002		1847
		1848	int
2003	int check_move_on (object *op, object *originator)	1849	check_move_on (object *op, object *originator)
2004	{	1850	{
2005	object *tmp;	1851	object *tmp;
2006	tag_t tag;
2007	mapstruct *m=op->map;	1852	maptile *m = op->map;
2008	int x=op->x, y=op->y;	1853	int x = op->x, y = op->y;
		1854
2009	MoveType move_on, move_slow, move_block;	1855	MoveType move_on, move_slow, move_block;
2010		1856
2011	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1857	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2012	return 0;
2013
2014	tag = op->count;
2015
2016	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
2017	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
2018	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
2019
2020	/* if nothing on this space will slow op down or be applied,
2021	* no need to do checking below. have to make sure move_type
2022	* is set, as lots of objects don't have it set - we treat that
2023	* as walking.
2024	*/
2025	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
2026	return 0;
2027
2028	/* This is basically inverse logic of that below - basically,
2029	* if the object can avoid the move on or slow move, they do so,
2030	* but can't do it if the alternate movement they are using is
2031	* blocked. Logic on this seems confusing, but does seem correct.
2032	*/
2033	if ((op->move_type & ~move_on & ~move_block) != 0 &&
2034	(op->move_type & ~move_slow & ~move_block) != 0) return 0;
2035
2036	/* The objects have to be checked from top to bottom.
2037	* Hence, we first go to the top:
2038	*/
2039
2040	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&
2041	tmp->above!=NULL; tmp=tmp->above) {
2042	/* Trim the search when we find the first other spell effect
2043	* this helps performance so that if a space has 50 spell objects,
2044	* we don't need to check all of them.
2045	*/
2046	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;
2047	}
2048	for(;tmp!=NULL; tmp=tmp->below) {
2049	if (tmp == op) continue; /* Can't apply yourself */
2050
2051	/* Check to see if one of the movement types should be slowed down.
2052	* Second check makes sure that the movement types not being slowed
2053	* (~slow_move) is not blocked on this space - just because the
2054	* space doesn't slow down swimming (for example), if you can't actually
2055	* swim on that space, can't use it to avoid the penalty.
2056	*/
2057	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {
2058	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2059	((op->move_type & tmp->move_slow) &&
2060	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {
2061
2062	float diff;
2063
2064	diff = tmp->move_slow_penalty*FABS(op->speed);
2065	if (op->type == PLAYER) {
2066	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||
2067	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {
2068	diff /= 4.0;
2069	}
2070	}
2071	op->speed_left -= diff;
2072	}
2073	}
2074
2075	/* Basically same logic as above, except now for actual apply. */
2076	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2077	((op->move_type & tmp->move_on) &&
2078	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {
2079
2080	move_apply(tmp, op, originator);
2081	if (was_destroyed (op, tag))
2082	return 1;
2083
2084	/* what the person/creature stepped onto has moved the object
2085	* someplace new. Don't process any further - if we did,
2086	* have a feeling strange problems would result.
2087	*/
2088	if (op->map != m || op->x != x || op->y != y) return 0;
2089	}
2090	}
2091	return 0;	1858	return 0;
		1859
		1860	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1861	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		1862	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		1863
		1864	/* if nothing on this space will slow op down or be applied,
		1865	* no need to do checking below. have to make sure move_type
		1866	* is set, as lots of objects don't have it set - we treat that
		1867	* as walking.
		1868	*/
		1869	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		1870	return 0;
		1871
		1872	/* This is basically inverse logic of that below - basically,
		1873	* if the object can avoid the move on or slow move, they do so,
		1874	* but can't do it if the alternate movement they are using is
		1875	* blocked. Logic on this seems confusing, but does seem correct.
		1876	*/
		1877	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		1878	return 0;
		1879
		1880	/* The objects have to be checked from top to bottom.
		1881	* Hence, we first go to the top:
		1882	*/
		1883
		1884	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
		1885	{
		1886	/* Trim the search when we find the first other spell effect
		1887	* this helps performance so that if a space has 50 spell objects,
		1888	* we don't need to check all of them.
		1889	*/
		1890	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1891	break;
		1892	}
		1893
		1894	for (; tmp; tmp = tmp->below)
		1895	{
		1896	if (tmp == op)
		1897	continue; /* Can't apply yourself */
		1898
		1899	/* Check to see if one of the movement types should be slowed down.
		1900	* Second check makes sure that the movement types not being slowed
		1901	* (~slow_move) is not blocked on this space - just because the
		1902	* space doesn't slow down swimming (for example), if you can't actually
		1903	* swim on that space, can't use it to avoid the penalty.
		1904	*/
		1905	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1906	{
		1907	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		1908	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1909	{
		1910
		1911	float
		1912	diff = tmp->move_slow_penalty * FABS (op->speed);
		1913
		1914	if (op->type == PLAYER)
		1915	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		1916	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		1917	diff /= 4.0;
		1918
		1919	op->speed_left -= diff;
		1920	}
		1921	}
		1922
		1923	/* Basically same logic as above, except now for actual apply. */
		1924	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		1925	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		1926	{
		1927	move_apply (tmp, op, originator);
		1928
		1929	if (op->destroyed ())
		1930	return 1;
		1931
		1932	/* what the person/creature stepped onto has moved the object
		1933	* someplace new. Don't process any further - if we did,
		1934	* have a feeling strange problems would result.
		1935	*/
		1936	if (op->map != m || op->x != x || op->y != y)
		1937	return 0;
		1938	}
		1939	}
		1940
		1941	return 0;
2092	}	1942	}
2093		1943
2094	/*	1944	/*
2095	* present_arch(arch, map, x, y) searches for any objects with	1945	* present_arch(arch, map, x, y) searches for any objects with
2096	* a matching archetype at the given map and coordinates.	1946	* a matching archetype at the given map and coordinates.
2097	* The first matching object is returned, or NULL if none.	1947	* The first matching object is returned, or NULL if none.
2098	*/	1948	*/
2099		1949
		1950	object *
2100	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1951	present_arch (const archetype *at, maptile *m, int x, int y)
		1952	{
2101	object *tmp;	1953	object *
		1954	tmp;
		1955
2102	if(m==NULL || out_of_map(m,x,y)) {	1956	if (m == NULL || out_of_map (m, x, y))
		1957	{
2103	LOG(llevError,"Present_arch called outside map.\n");	1958	LOG (llevError, "Present_arch called outside map.\n");
2104	return NULL;	1959	return NULL;
2105	}	1960	}
2106	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1961	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2107	if(tmp->arch == at)	1962	if (tmp->arch == at)
2108	return tmp;	1963	return tmp;
2109	return NULL;	1964	return NULL;
2110	}	1965	}
2111		1966
2112	/*	1967	/*
2113	* present(type, map, x, y) searches for any objects with	1968	* present(type, map, x, y) searches for any objects with
2114	* a matching type variable at the given map and coordinates.	1969	* a matching type variable at the given map and coordinates.
2115	* The first matching object is returned, or NULL if none.	1970	* The first matching object is returned, or NULL if none.
2116	*/	1971	*/
2117		1972
		1973	object *
2118	object *present(unsigned char type,mapstruct *m, int x,int y) {	1974	present (unsigned char type, maptile *m, int x, int y)
		1975	{
2119	object *tmp;	1976	object *
		1977	tmp;
		1978
2120	if(out_of_map(m,x,y)) {	1979	if (out_of_map (m, x, y))
		1980	{
2121	LOG(llevError,"Present called outside map.\n");	1981	LOG (llevError, "Present called outside map.\n");
2122	return NULL;	1982	return NULL;
2123	}	1983	}
2124	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1984	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2125	if(tmp->type==type)	1985	if (tmp->type == type)
2126	return tmp;	1986	return tmp;
2127	return NULL;	1987	return NULL;
2128	}	1988	}
2129		1989
2130	/*	1990	/*
2131	* present_in_ob(type, object) searches for any objects with	1991	* present_in_ob(type, object) searches for any objects with
2132	* a matching type variable in the inventory of the given object.	1992	* a matching type variable in the inventory of the given object.
2133	* The first matching object is returned, or NULL if none.	1993	* The first matching object is returned, or NULL if none.
2134	*/	1994	*/
2135		1995
		1996	object *
2136	object *present_in_ob(unsigned char type, const object *op) {	1997	present_in_ob (unsigned char type, const object *op)
		1998	{
2137	object *tmp;	1999	object *
		2000	tmp;
		2001
2138	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2002	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2139	if(tmp->type==type)	2003	if (tmp->type == type)
2140	return tmp;	2004	return tmp;
2141	return NULL;	2005	return NULL;
2142	}	2006	}
2143		2007
2144	/*	2008	/*
…		…
2154	* the object name, not the archetype name. this is so that the	2018	* the object name, not the archetype name. this is so that the
2155	* spell code can use one object type (force), but change it's name	2019	* spell code can use one object type (force), but change it's name
2156	* to be unique.	2020	* to be unique.
2157	*/	2021	*/
2158		2022
		2023	object *
2159	object *present_in_ob_by_name(int type, const char *str, const object *op) {	2024	present_in_ob_by_name (int type, const char *str, const object *op)
		2025	{
2160	object *tmp;	2026	object *
		2027	tmp;
2161		2028
2162	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	2029	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2030	{
2163	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	2031	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2164	return tmp;	2032	return tmp;
2165	}	2033	}
2166	return NULL;	2034	return NULL;
2167	}	2035	}
2168		2036
2169	/*	2037	/*
2170	* present_arch_in_ob(archetype, object) searches for any objects with	2038	* present_arch_in_ob(archetype, object) searches for any objects with
2171	* a matching archetype in the inventory of the given object.	2039	* a matching archetype in the inventory of the given object.
2172	* The first matching object is returned, or NULL if none.	2040	* The first matching object is returned, or NULL if none.
2173	*/	2041	*/
2174		2042
		2043	object *
2175	object *present_arch_in_ob(const archetype *at, const object *op) {	2044	present_arch_in_ob (const archetype *at, const object *op)
		2045	{
2176	object *tmp;	2046	object *
		2047	tmp;
		2048
2177	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2049	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2178	if( tmp->arch == at)	2050	if (tmp->arch == at)
2179	return tmp;	2051	return tmp;
2180	return NULL;	2052	return NULL;
2181	}	2053	}
2182		2054
2183	/*	2055	/*
2184	* activate recursively a flag on an object inventory	2056	* activate recursively a flag on an object inventory
2185	*/	2057	*/
		2058	void
2186	void flag_inv(object*op, int flag){	2059	flag_inv (object *op, int flag)
		2060	{
2187	object *tmp;	2061	object *
		2062	tmp;
		2063
2188	if(op->inv)	2064	if (op->inv)
2189	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2065	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2066	{
2190	SET_FLAG(tmp, flag);	2067	SET_FLAG (tmp, flag);
2191	flag_inv(tmp,flag);	2068	flag_inv (tmp, flag);
2192	}	2069	}
2193	}/*	2070	} /*
2194	* desactivate recursively a flag on an object inventory	2071	* desactivate recursively a flag on an object inventory
2195	*/	2072	*/
		2073	void
2196	void unflag_inv(object*op, int flag){	2074	unflag_inv (object *op, int flag)
		2075	{
2197	object *tmp;	2076	object *
		2077	tmp;
		2078
2198	if(op->inv)	2079	if (op->inv)
2199	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2080	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2081	{
2200	CLEAR_FLAG(tmp, flag);	2082	CLEAR_FLAG (tmp, flag);
2201	unflag_inv(tmp,flag);	2083	unflag_inv (tmp, flag);
2202	}	2084	}
2203	}	2085	}
2204		2086
2205	/*	2087	/*
2206	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	2088	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2207	* all it's inventory (recursively).	2089	* all it's inventory (recursively).
2208	* If checksums are used, a player will get set_cheat called for	2090	* If checksums are used, a player will get set_cheat called for
2209	* him/her-self and all object carried by a call to this function.	2091	* him/her-self and all object carried by a call to this function.
2210	*/	2092	*/
2211		2093
		2094	void
2212	void set_cheat(object *op) {	2095	set_cheat (object *op)
		2096	{
2213	SET_FLAG(op, FLAG_WAS_WIZ);	2097	SET_FLAG (op, FLAG_WAS_WIZ);
2214	flag_inv(op, FLAG_WAS_WIZ);	2098	flag_inv (op, FLAG_WAS_WIZ);
2215	}	2099	}
2216		2100
2217	/*	2101	/*
2218	* find_free_spot(object, map, x, y, start, stop) will search for	2102	* find_free_spot(object, map, x, y, start, stop) will search for
2219	* a spot at the given map and coordinates which will be able to contain	2103	* a spot at the given map and coordinates which will be able to contain
…		…
2234	* to know if the space in question will block the object. We can't use	2118	* to know if the space in question will block the object. We can't use
2235	* the archetype because that isn't correct if the monster has been	2119	* the archetype because that isn't correct if the monster has been
2236	* customized, changed states, etc.	2120	* customized, changed states, etc.
2237	*/	2121	*/
2238		2122
		2123	int
2239	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2124	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2125	{
		2126	int
		2127	i,
2240	int i,index=0, flag;	2128	index = 0, flag;
		2129	static int
2241	static int altern[SIZEOFFREE];	2130	altern[SIZEOFFREE];
2242		2131
2243	for(i=start;i<stop;i++) {	2132	for (i = start; i < stop; i++)
		2133	{
2244	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2134	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2245	if(!flag)	2135	if (!flag)
2246	altern[index++]=i;	2136	altern[index++] = i;
2247		2137
2248	/* Basically, if we find a wall on a space, we cut down the search size.	2138	/* Basically, if we find a wall on a space, we cut down the search size.
2249	* In this way, we won't return spaces that are on another side of a wall.	2139	* In this way, we won't return spaces that are on another side of a wall.
2250	* This mostly work, but it cuts down the search size in all directions -	2140	* This mostly work, but it cuts down the search size in all directions -
2251	* if the space being examined only has a wall to the north and empty	2141	* if the space being examined only has a wall to the north and empty
2252	* spaces in all the other directions, this will reduce the search space	2142	* spaces in all the other directions, this will reduce the search space
2253	* to only the spaces immediately surrounding the target area, and	2143	* to only the spaces immediately surrounding the target area, and
2254	* won't look 2 spaces south of the target space.	2144	* won't look 2 spaces south of the target space.
2255	*/	2145	*/
2256	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2146	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)
2257	stop=maxfree[i];	2147	stop = maxfree[i];
2258	}	2148	}
2259	if(!index) return -1;	2149	if (!index)
		2150	return -1;
2260	return altern[RANDOM()%index];	2151	return altern[RANDOM () % index];
2261	}	2152	}
2262		2153
2263	/*	2154	/*
2264	* find_first_free_spot(archetype, mapstruct, x, y) works like	2155	* find_first_free_spot(archetype, maptile, x, y) works like
2265	* find_free_spot(), but it will search max number of squares.	2156	* find_free_spot(), but it will search max number of squares.
2266	* But it will return the first available spot, not a random choice.	2157	* But it will return the first available spot, not a random choice.
2267	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2158	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2268	*/	2159	*/
2269		2160
		2161	int
2270	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2162	find_first_free_spot (const object *ob, maptile *m, int x, int y)
		2163	{
		2164	int
2271	int i;	2165	i;
		2166
2272	for(i=0;i<SIZEOFFREE;i++) {	2167	for (i = 0; i < SIZEOFFREE; i++)
		2168	{
2273	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2169	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2274	return i;	2170	return i;
2275	}	2171	}
2276	return -1;	2172	return -1;
2277	}	2173	}
2278		2174
2279	/*	2175	/*
2280	* The function permute(arr, begin, end) randomly reorders the array	2176	* The function permute(arr, begin, end) randomly reorders the array
2281	* arr[begin..end-1].	2177	* arr[begin..end-1].
2282	*/	2178	*/
		2179	static void
2283	static void permute(int *arr, int begin, int end)	2180	permute (int *arr, int begin, int end)
2284	{	2181	{
2285	int i, j, tmp, len;	2182	int
		2183	i,
		2184	j,
		2185	tmp,
		2186	len;
2286		2187
2287	len = end-begin;	2188	len = end - begin;
2288	for(i = begin; i < end; i++)	2189	for (i = begin; i < end; i++)
2289	{	2190	{
2290	j = begin+RANDOM()%len;	2191	j = begin + RANDOM () % len;
2291		2192
2292	tmp = arr[i];	2193	tmp = arr[i];
2293	arr[i] = arr[j];	2194	arr[i] = arr[j];
2294	arr[j] = tmp;	2195	arr[j] = tmp;
2295	}	2196	}
2296	}	2197	}
2297		2198
2298	/* new function to make monster searching more efficient, and effective!	2199	/* new function to make monster searching more efficient, and effective!
2299	* This basically returns a randomized array (in the passed pointer) of	2200	* This basically returns a randomized array (in the passed pointer) of
2300	* the spaces to find monsters. In this way, it won't always look for	2201	* the spaces to find monsters. In this way, it won't always look for
2301	* monsters to the north first. However, the size of the array passed	2202	* monsters to the north first. However, the size of the array passed
2302	* covers all the spaces, so within that size, all the spaces within	2203	* covers all the spaces, so within that size, all the spaces within
2303	* the 3x3 area will be searched, just not in a predictable order.	2204	* the 3x3 area will be searched, just not in a predictable order.
2304	*/	2205	*/
		2206	void
2305	void get_search_arr(int *search_arr)	2207	get_search_arr (int *search_arr)
2306	{	2208	{
		2209	int
2307	int i;	2210	i;
2308		2211
2309	for(i = 0; i < SIZEOFFREE; i++)	2212	for (i = 0; i < SIZEOFFREE; i++)
2310	{	2213	{
2311	search_arr[i] = i;	2214	search_arr[i] = i;
2312	}	2215	}
2313		2216
2314	permute(search_arr, 1, SIZEOFFREE1+1);	2217	permute (search_arr, 1, SIZEOFFREE1 + 1);
2315	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2218	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2316	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2219	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2317	}	2220	}
2318		2221
2319	/*	2222	/*
2320	* find_dir(map, x, y, exclude) will search some close squares in the	2223	* find_dir(map, x, y, exclude) will search some close squares in the
2321	* given map at the given coordinates for live objects.	2224	* given map at the given coordinates for live objects.
…		…
2327	* is actually want is going to try and move there. We need this info	2230	* is actually want is going to try and move there. We need this info
2328	* because we have to know what movement the thing looking to move	2231	* because we have to know what movement the thing looking to move
2329	* there is capable of.	2232	* there is capable of.
2330	*/	2233	*/
2331		2234
		2235	int
2332	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2236	find_dir (maptile *m, int x, int y, object *exclude)
		2237	{
		2238	int
		2239	i,
2333	int i,max=SIZEOFFREE, mflags;	2240	max = SIZEOFFREE, mflags;
		2241
2334	sint16 nx, ny;	2242	sint16 nx, ny;
2335	object *tmp;	2243	object *
2336	mapstruct *mp;	2244	tmp;
		2245	maptile *
		2246	mp;
		2247
2337	MoveType blocked, move_type;	2248	MoveType blocked, move_type;
2338		2249
2339	if (exclude && exclude->head) {	2250	if (exclude && exclude->head)
		2251	{
2340	exclude = exclude->head;	2252	exclude = exclude->head;
2341	move_type = exclude->move_type;	2253	move_type = exclude->move_type;
2342	} else {	2254	}
		2255	else
		2256	{
2343	/* If we don't have anything, presume it can use all movement types. */	2257	/* If we don't have anything, presume it can use all movement types. */
2344	move_type=MOVE_ALL;	2258	move_type = MOVE_ALL;
		2259	}
		2260
		2261	for (i = 1; i < max; i++)
2345	}	2262	{
2346		2263	mp = m;
2347	for(i=1;i<max;i++) {
2348	mp = m;
2349	nx = x + freearr_x[i];	2264	nx = x + freearr_x[i];
2350	ny = y + freearr_y[i];	2265	ny = y + freearr_y[i];
2351		2266
2352	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2267	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
2353	if (mflags & P_OUT_OF_MAP) {	2268	if (mflags & P_OUT_OF_MAP)
		2269	{
2354	max = maxfree[i];	2270	max = maxfree[i];
2355	} else {	2271	}
		2272	else
		2273	{
2356	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2274	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
2357		2275
2358	if ((move_type & blocked) == move_type) {	2276	if ((move_type & blocked) == move_type)
2359	max=maxfree[i];	2277	{
		2278	max = maxfree[i];
		2279	}
2360	} else if (mflags & P_IS_ALIVE) {	2280	else if (mflags & P_IS_ALIVE)
		2281	{
2361	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2282	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2362	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2283	{
2363	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2284	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2364	break;	2285	{
2365	}	2286	break;
2366	}	2287	}
2367	if(tmp) {	2288	}
2368	return freedir[i];	2289	if (tmp)
2369	}	2290	{
		2291	return freedir[i];
		2292	}
		2293	}
		2294	}
2370	}	2295	}
2371	}
2372	}
2373	return 0;	2296	return 0;
2374	}	2297	}
2375		2298
2376	/*	2299	/*
2377	* distance(object 1, object 2) will return the square of the	2300	* distance(object 1, object 2) will return the square of the
2378	* distance between the two given objects.	2301	* distance between the two given objects.
2379	*/	2302	*/
2380		2303
		2304	int
2381	int distance(const object *ob1, const object *ob2) {	2305	distance (const object *ob1, const object *ob2)
		2306	{
2382	int i;	2307	int
2383	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2308	i;
2384	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2309
		2310	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2385	return i;	2311	return i;
2386	}	2312	}
2387		2313
2388	/*	2314	/*
2389	* find_dir_2(delta-x,delta-y) will return a direction in which	2315	* find_dir_2(delta-x,delta-y) will return a direction in which
2390	* an object which has subtracted the x and y coordinates of another	2316	* an object which has subtracted the x and y coordinates of another
2391	* object, needs to travel toward it.	2317	* object, needs to travel toward it.
2392	*/	2318	*/
2393		2319
		2320	int
2394	int find_dir_2(int x, int y) {	2321	find_dir_2 (int x, int y)
		2322	{
2395	int q;	2323	int
		2324	q;
2396		2325
2397	if(y)	2326	if (y)
2398	q=x*100/y;	2327	q = x * 100 / y;
2399	else if (x)	2328	else if (x)
2400	q= -300*x;	2329	q = -300 * x;
2401	else	2330	else
2402	return 0;	2331	return 0;
2403		2332
2404	if(y>0) {	2333	if (y > 0)
		2334	{
2405	if(q < -242)	2335	if (q < -242)
2406	return 3 ;	2336	return 3;
2407	if (q < -41)	2337	if (q < -41)
2408	return 2 ;	2338	return 2;
2409	if (q < 41)	2339	if (q < 41)
2410	return 1 ;	2340	return 1;
2411	if (q < 242)	2341	if (q < 242)
2412	return 8 ;	2342	return 8;
2413	return 7 ;	2343	return 7;
2414	}	2344	}
2415		2345
2416	if (q < -242)	2346	if (q < -242)
2417	return 7 ;	2347	return 7;
2418	if (q < -41)	2348	if (q < -41)
2419	return 6 ;	2349	return 6;
2420	if (q < 41)	2350	if (q < 41)
2421	return 5 ;	2351	return 5;
2422	if (q < 242)	2352	if (q < 242)
2423	return 4 ;	2353	return 4;
2424		2354
2425	return 3 ;	2355	return 3;
2426	}	2356	}
2427		2357
2428	/*	2358	/*
2429	* absdir(int): Returns a number between 1 and 8, which represent	2359	* absdir(int): Returns a number between 1 and 8, which represent
2430	* the "absolute" direction of a number (it actually takes care of	2360	* the "absolute" direction of a number (it actually takes care of
2431	* "overflow" in previous calculations of a direction).	2361	* "overflow" in previous calculations of a direction).
2432	*/	2362	*/
2433		2363
		2364	int
2434	int absdir(int d) {	2365	absdir (int d)
2435	while(d<1) d+=8;	2366	{
2436	while(d>8) d-=8;	2367	while (d < 1)
		2368	d += 8;
		2369	while (d > 8)
		2370	d -= 8;
2437	return d;	2371	return d;
2438	}	2372	}
2439		2373
2440	/*	2374	/*
2441	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2375	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2442	* between two directions (which are expected to be absolute (see absdir())	2376	* between two directions (which are expected to be absolute (see absdir())
2443	*/	2377	*/
2444		2378
		2379	int
2445	int dirdiff(int dir1, int dir2) {	2380	dirdiff (int dir1, int dir2)
		2381	{
2446	int d;	2382	int
		2383	d;
		2384
2447	d = abs(dir1 - dir2);	2385	d = abs (dir1 - dir2);
2448	if(d>4)	2386	if (d > 4)
2449	d = 8 - d;	2387	d = 8 - d;
2450	return d;	2388	return d;
2451	}	2389	}
2452		2390
2453	/* peterm:	2391	/* peterm:
…		…
2458	* direction 4, 14, or 16 to get back to where we are.	2396	* direction 4, 14, or 16 to get back to where we are.
2459	* Moved from spell_util.c to object.c with the other related direction	2397	* Moved from spell_util.c to object.c with the other related direction
2460	* functions.	2398	* functions.
2461	*/	2399	*/
2462		2400
		2401	int
2463	int reduction_dir[SIZEOFFREE][3] = {	2402	reduction_dir[SIZEOFFREE][3] = {
2464	{0,0,0}, /* 0 */	2403	{0, 0, 0}, /* 0 */
2465	{0,0,0}, /* 1 */	2404	{0, 0, 0}, /* 1 */
2466	{0,0,0}, /* 2 */	2405	{0, 0, 0}, /* 2 */
2467	{0,0,0}, /* 3 */	2406	{0, 0, 0}, /* 3 */
2468	{0,0,0}, /* 4 */	2407	{0, 0, 0}, /* 4 */
2469	{0,0,0}, /* 5 */	2408	{0, 0, 0}, /* 5 */
2470	{0,0,0}, /* 6 */	2409	{0, 0, 0}, /* 6 */
2471	{0,0,0}, /* 7 */	2410	{0, 0, 0}, /* 7 */
2472	{0,0,0}, /* 8 */	2411	{0, 0, 0}, /* 8 */
2473	{8,1,2}, /* 9 */	2412	{8, 1, 2}, /* 9 */
2474	{1,2,-1}, /* 10 */	2413	{1, 2, -1}, /* 10 */
2475	{2,10,12}, /* 11 */	2414	{2, 10, 12}, /* 11 */
2476	{2,3,-1}, /* 12 */	2415	{2, 3, -1}, /* 12 */
2477	{2,3,4}, /* 13 */	2416	{2, 3, 4}, /* 13 */
2478	{3,4,-1}, /* 14 */	2417	{3, 4, -1}, /* 14 */
2479	{4,14,16}, /* 15 */	2418	{4, 14, 16}, /* 15 */
2480	{5,4,-1}, /* 16 */	2419	{5, 4, -1}, /* 16 */
2481	{4,5,6}, /* 17 */	2420	{4, 5, 6}, /* 17 */
2482	{6,5,-1}, /* 18 */	2421	{6, 5, -1}, /* 18 */
2483	{6,20,18}, /* 19 */	2422	{6, 20, 18}, /* 19 */
2484	{7,6,-1}, /* 20 */	2423	{7, 6, -1}, /* 20 */
2485	{6,7,8}, /* 21 */	2424	{6, 7, 8}, /* 21 */
2486	{7,8,-1}, /* 22 */	2425	{7, 8, -1}, /* 22 */
2487	{8,22,24}, /* 23 */	2426	{8, 22, 24}, /* 23 */
2488	{8,1,-1}, /* 24 */	2427	{8, 1, -1}, /* 24 */
2489	{24,9,10}, /* 25 */	2428	{24, 9, 10}, /* 25 */
2490	{9,10,-1}, /* 26 */	2429	{9, 10, -1}, /* 26 */
2491	{10,11,-1}, /* 27 */	2430	{10, 11, -1}, /* 27 */
2492	{27,11,29}, /* 28 */	2431	{27, 11, 29}, /* 28 */
2493	{11,12,-1}, /* 29 */	2432	{11, 12, -1}, /* 29 */
2494	{12,13,-1}, /* 30 */	2433	{12, 13, -1}, /* 30 */
2495	{12,13,14}, /* 31 */	2434	{12, 13, 14}, /* 31 */
2496	{13,14,-1}, /* 32 */	2435	{13, 14, -1}, /* 32 */
2497	{14,15,-1}, /* 33 */	2436	{14, 15, -1}, /* 33 */
2498	{33,15,35}, /* 34 */	2437	{33, 15, 35}, /* 34 */
2499	{16,15,-1}, /* 35 */	2438	{16, 15, -1}, /* 35 */
2500	{17,16,-1}, /* 36 */	2439	{17, 16, -1}, /* 36 */
2501	{18,17,16}, /* 37 */	2440	{18, 17, 16}, /* 37 */
2502	{18,17,-1}, /* 38 */	2441	{18, 17, -1}, /* 38 */
2503	{18,19,-1}, /* 39 */	2442	{18, 19, -1}, /* 39 */
2504	{41,19,39}, /* 40 */	2443	{41, 19, 39}, /* 40 */
2505	{19,20,-1}, /* 41 */	2444	{19, 20, -1}, /* 41 */
2506	{20,21,-1}, /* 42 */	2445	{20, 21, -1}, /* 42 */
2507	{20,21,22}, /* 43 */	2446	{20, 21, 22}, /* 43 */
2508	{21,22,-1}, /* 44 */	2447	{21, 22, -1}, /* 44 */
2509	{23,22,-1}, /* 45 */	2448	{23, 22, -1}, /* 45 */
2510	{45,47,23}, /* 46 */	2449	{45, 47, 23}, /* 46 */
2511	{23,24,-1}, /* 47 */	2450	{23, 24, -1}, /* 47 */
2512	{24,9,-1}}; /* 48 */	2451	{24, 9, -1}
		2452	}; /* 48 */
2513		2453
2514	/* Recursive routine to step back and see if we can	2454	/* Recursive routine to step back and see if we can
2515	* find a path to that monster that we found. If not,	2455	* find a path to that monster that we found. If not,
2516	* we don't bother going toward it. Returns 1 if we	2456	* we don't bother going toward it. Returns 1 if we
2517	* can see a direct way to get it	2457	* can see a direct way to get it
2518	* Modified to be map tile aware -.MSW	2458	* Modified to be map tile aware -.MSW
2519	*/	2459	*/
2520
2521		2460
		2461
		2462	int
2522	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2463	can_see_monsterP (maptile *m, int x, int y, int dir)
		2464	{
2523	sint16 dx, dy;	2465	sint16 dx, dy;
		2466	int
2524	int mflags;	2467	mflags;
2525		2468
		2469	if (dir < 0)
2526	if(dir<0) return 0; /* exit condition: invalid direction */	2470	return 0; /* exit condition: invalid direction */
2527		2471
2528	dx = x + freearr_x[dir];	2472	dx = x + freearr_x[dir];
2529	dy = y + freearr_y[dir];	2473	dy = y + freearr_y[dir];
2530		2474
2531	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2475	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2532		2476
2533	/* This functional arguably was incorrect before - it was	2477	/* This functional arguably was incorrect before - it was
2534	* checking for P_WALL - that was basically seeing if	2478	* checking for P_WALL - that was basically seeing if
2535	* we could move to the monster - this is being more	2479	* we could move to the monster - this is being more
2536	* literal on if we can see it. To know if we can actually	2480	* literal on if we can see it. To know if we can actually
2537	* move to the monster, we'd need the monster passed in or	2481	* move to the monster, we'd need the monster passed in or
2538	* at least its move type.	2482	* at least its move type.
2539	*/	2483	*/
2540	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2484	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2485	return 0;
2541		2486
2542	/* yes, can see. */	2487	/* yes, can see. */
2543	if(dir < 9) return 1;	2488	if (dir < 9)
		2489	return 1;
2544	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2490	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |
2545	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2491	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2546	can_see_monsterP(m,x,y, reduction_dir[dir][2]);
2547	}	2492	}
2548		2493
2549		2494
2550		2495
2551	/*	2496	/*
2552	* can_pick(picker, item): finds out if an object is possible to be	2497	* can_pick(picker, item): finds out if an object is possible to be
2553	* picked up by the picker. Returnes 1 if it can be	2498	* picked up by the picker. Returnes 1 if it can be
2554	* picked up, otherwise 0.	2499	* picked up, otherwise 0.
2555	*	2500	*
…		…
2557	* core dumps if they do.	2502	* core dumps if they do.
2558	*	2503	*
2559	* Add a check so we can't pick up invisible objects (0.93.8)	2504	* Add a check so we can't pick up invisible objects (0.93.8)
2560	*/	2505	*/
2561		2506
		2507	int
2562	int can_pick(const object *who, const object *item) {	2508	can_pick (const object *who, const object *item)
		2509	{
2563	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2510	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2564	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2511	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2565	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2512	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2566	(who->type==PLAYER||item->weight<who->weight/3));
2567	}	2513	}
2568		2514
2569		2515
2570	/*	2516	/*
2571	* create clone from object to another	2517	* create clone from object to another
2572	*/	2518	*/
		2519	object *
2573	object *object_create_clone (object *asrc) {	2520	object_create_clone (object *asrc)
		2521	{
2574	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2522	object *dst = 0, *tmp, *src, *part, *prev, *item;
2575		2523
2576	if(!asrc) return NULL;	2524	if (!asrc)
		2525	return 0;
		2526
2577	src = asrc;	2527	src = asrc;
2578	if(src->head)	2528	if (src->head)
2579	src = src->head;	2529	src = src->head;
2580		2530
2581	prev = NULL;	2531	prev = 0;
2582	for(part = src; part; part = part->more) {	2532	for (part = src; part; part = part->more)
2583	tmp = get_object();	2533	{
2584	copy_object(part,tmp);	2534	tmp = part->clone ();
2585	tmp->x -= src->x;	2535	tmp->x -= src->x;
2586	tmp->y -= src->y;	2536	tmp->y -= src->y;
		2537
2587	if(!part->head) {	2538	if (!part->head)
		2539	{
2588	dst = tmp;	2540	dst = tmp;
2589	tmp->head = NULL;	2541	tmp->head = 0;
		2542	}
2590	} else {	2543	else
		2544	{
2591	tmp->head = dst;	2545	tmp->head = dst;
2592	}	2546	}
		2547
2593	tmp->more = NULL;	2548	tmp->more = 0;
		2549
2594	if(prev)	2550	if (prev)
2595	prev->more = tmp;	2551	prev->more = tmp;
		2552
2596	prev = tmp;	2553	prev = tmp;
2597	}	2554	}
2598	/*** copy inventory ***/	2555
2599	for(item = src->inv; item; item = item->below) {	2556	for (item = src->inv; item; item = item->below)
2600	(void) insert_ob_in_ob(object_create_clone(item),dst);	2557	insert_ob_in_ob (object_create_clone (item), dst);
2601	}
2602		2558
2603	return dst;	2559	return dst;
2604	}
2605
2606	/* return true if the object was destroyed, 0 otherwise */
2607	int was_destroyed (const object *op, tag_t old_tag)
2608	{
2609	/* checking for FLAG_FREED isn't necessary, but makes this function more
2610	* robust */
2611	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2612	}	2560	}
2613		2561
2614	/* GROS - Creates an object using a string representing its content. */	2562	/* GROS - Creates an object using a string representing its content. */
2615	/* Basically, we save the content of the string to a temp file, then call */	2563	/* Basically, we save the content of the string to a temp file, then call */
2616	/* load_object on it. I admit it is a highly inefficient way to make things, */	2564	/* load_object on it. I admit it is a highly inefficient way to make things, */
2617	/* but it was simple to make and allows reusing the load_object function. */	2565	/* but it was simple to make and allows reusing the load_object function. */
2618	/* Remember not to use load_object_str in a time-critical situation. */	2566	/* Remember not to use load_object_str in a time-critical situation. */
2619	/* Also remember that multiparts objects are not supported for now. */	2567	/* Also remember that multiparts objects are not supported for now. */
2620		2568
		2569	object *
2621	object* load_object_str(const char *obstr)	2570	load_object_str (const char *obstr)
2622	{	2571	{
2623	object *op;	2572	object *op;
2624	FILE *tempfile;
2625	char filename[MAX_BUF];	2573	char filename[MAX_BUF];
		2574
2626	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2575	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
		2576
2627	tempfile=fopen(filename,"w");	2577	FILE *tempfile = fopen (filename, "w");
		2578
2628	if (tempfile == NULL)	2579	if (tempfile == NULL)
2629	{	2580	{
2630	LOG(llevError,"Error - Unable to access load object temp file\n");	2581	LOG (llevError, "Error - Unable to access load object temp file\n");
2631	return NULL;	2582	return NULL;
2632	};	2583	}
		2584
2633	fprintf(tempfile,obstr);	2585	fprintf (tempfile, obstr);
2634	fclose(tempfile);	2586	fclose (tempfile);
2635		2587
2636	op=get_object();	2588	op = object::create ();
2637		2589
2638	tempfile=fopen(filename,"r");	2590	object_thawer thawer (filename);
2639	if (tempfile == NULL)	2591
2640	{	2592	if (thawer)
2641	LOG(llevError,"Error - Unable to read object temp file\n");	2593	load_object (thawer, op, 0);
2642	return NULL;	2594
2643	};
2644	load_object(tempfile,op,LO_NEWFILE,0);
2645	LOG(llevDebug," load str completed, object=%s\n",op->name);	2595	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2646	CLEAR_FLAG(op,FLAG_REMOVED);	2596	CLEAR_FLAG (op, FLAG_REMOVED);
2647	fclose(tempfile);	2597
2648	return op;	2598	return op;
2649	}	2599	}
2650		2600
2651	/* This returns the first object in who's inventory that	2601	/* This returns the first object in who's inventory that
2652	* has the same type and subtype match.	2602	* has the same type and subtype match.
2653	* returns NULL if no match.	2603	* returns NULL if no match.
2654	*/	2604	*/
		2605	object *
2655	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2606	find_obj_by_type_subtype (const object *who, int type, int subtype)
2656	{	2607	{
2657	object *tmp;	2608	object *tmp;
2658		2609
2659	for (tmp=who->inv; tmp; tmp=tmp->below)	2610	for (tmp = who->inv; tmp; tmp = tmp->below)
2660	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2611	if (tmp->type == type && tmp->subtype == subtype)
		2612	return tmp;
2661		2613
2662	return NULL;	2614	return NULL;
2663	}	2615	}
2664		2616
2665	/* If ob has a field named key, return the link from the list,	2617	/* If ob has a field named key, return the link from the list,
2666	* otherwise return NULL.	2618	* otherwise return NULL.
2667	*	2619	*
2668	* key must be a passed in shared string - otherwise, this won't	2620	* key must be a passed in shared string - otherwise, this won't
2669	* do the desired thing.	2621	* do the desired thing.
2670	*/	2622	*/
		2623	key_value *
2671	key_value * get_ob_key_link(const object * ob, const char * key) {	2624	get_ob_key_link (const object *ob, const char *key)
		2625	{
2672	key_value * link;	2626	key_value *link;
2673		2627
2674	for (link = ob->key_values; link != NULL; link = link->next) {	2628	for (link = ob->key_values; link != NULL; link = link->next)
2675	if (link->key == key) {	2629	if (link->key == key)
2676	return link;	2630	return link;
2677	}	2631
2678	}
2679
2680	return NULL;	2632	return NULL;
2681	}	2633	}
2682		2634
2683	/*	2635	/*
2684	* Returns the value of op has an extra_field for key, or NULL.	2636	* Returns the value of op has an extra_field for key, or NULL.
2685	*	2637	*
2686	* The argument doesn't need to be a shared string.	2638	* The argument doesn't need to be a shared string.
2687	*	2639	*
2688	* The returned string is shared.	2640	* The returned string is shared.
2689	*/	2641	*/
		2642	const char *
2690	const char * get_ob_key_value(const object * op, const char * const key) {	2643	get_ob_key_value (const object *op, const char *const key)
		2644	{
2691	key_value * link;	2645	key_value *link;
2692	const char * canonical_key;	2646	shstr_cmp canonical_key (key);
		2647
		2648	if (!canonical_key)
2693		2649	{
2694	canonical_key = find_string(key);
2695
2696	if (canonical_key == NULL) {
2697	/* 1. There being a field named key on any object	2650	/* 1. There being a field named key on any object
2698	* implies there'd be a shared string to find.	2651	* implies there'd be a shared string to find.
2699	* 2. Since there isn't, no object has this field.	2652	* 2. Since there isn't, no object has this field.
2700	* 3. Therefore, *this* object doesn't have this field.	2653	* 3. Therefore, *this* object doesn't have this field.
2701	*/	2654	*/
2702	return NULL;	2655	return 0;
2703	}	2656	}
2704		2657
2705	/* This is copied from get_ob_key_link() above -	2658	/* This is copied from get_ob_key_link() above -
2706	* only 4 lines, and saves the function call overhead.	2659	* only 4 lines, and saves the function call overhead.
2707	*/	2660	*/
2708	for (link = op->key_values; link != NULL; link = link->next) {	2661	for (link = op->key_values; link; link = link->next)
2709	if (link->key == canonical_key) {	2662	if (link->key == canonical_key)
2710	return link->value;	2663	return link->value;
2711	}	2664
2712	}	2665	return 0;
2713	return NULL;
2714	}	2666	}
2715		2667
2716		2668
2717	/*	2669	/*
2718	* Updates the canonical_key in op to value.	2670	* Updates the canonical_key in op to value.
…		…
2722	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2674	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2723	* keys.	2675	* keys.
2724	*	2676	*
2725	* Returns TRUE on success.	2677	* Returns TRUE on success.
2726	*/	2678	*/
		2679	int
2727	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2680	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2681	{
		2682	key_value *
2728	key_value * field = NULL, *last=NULL;	2683	field = NULL, *last = NULL;
2729		2684
2730	for (field=op->key_values; field != NULL; field=field->next) {	2685	for (field = op->key_values; field != NULL; field = field->next)
2731	if (field->key != canonical_key) {
2732	last = field;
2733	continue;
2734	}
2735		2686	{
2736	if (field->value) FREE_AND_CLEAR_STR(field->value);	2687	if (field->key != canonical_key)
2737	if (value)	2688	{
2738	field->value = add_string(value);	2689	last = field;
2739	else {	2690	continue;
		2691	}
		2692
		2693	if (value)
		2694	field->value = value;
		2695	else
		2696	{
2740	/* Basically, if the archetype has this key set,	2697	/* Basically, if the archetype has this key set,
2741	* we need to store the null value so when we save	2698	* we need to store the null value so when we save
2742	* it, we save the empty value so that when we load,	2699	* it, we save the empty value so that when we load,
2743	* we get this value back again.	2700	* we get this value back again.
2744	*/	2701	*/
2745	if (get_ob_key_link(&op->arch->clone, canonical_key))	2702	if (get_ob_key_link (&op->arch->clone, canonical_key))
2746	field->value = NULL;	2703	field->value = 0;
2747	else {	2704	else
2748	/* Delete this link */	2705	{
2749	if (field->key) FREE_AND_CLEAR_STR(field->key);	2706	if (last)
2750	if (field->value) FREE_AND_CLEAR_STR(field->value);	2707	last->next = field->next;
2751	if (last) last->next = field->next;	2708	else
2752	else op->key_values = field->next;	2709	op->key_values = field->next;
2753	free(field);	2710
2754	}	2711	delete field;
2755	}	2712	}
		2713	}
2756	return TRUE;	2714	return TRUE;
2757	}	2715	}
2758	/* IF we get here, key doesn't exist */	2716	/* IF we get here, key doesn't exist */
2759		2717
2760	/* No field, we'll have to add it. */	2718	/* No field, we'll have to add it. */
		2719
		2720	if (!add_key)
2761		2721	{
2762	if (!add_key) {
2763	return FALSE;	2722	return FALSE;
2764	}	2723	}
2765	/* There isn't any good reason to store a null	2724	/* There isn't any good reason to store a null
2766	* value in the key/value list. If the archetype has	2725	* value in the key/value list. If the archetype has
2767	* this key, then we should also have it, so shouldn't	2726	* this key, then we should also have it, so shouldn't
2768	* be here. If user wants to store empty strings,	2727	* be here. If user wants to store empty strings,
2769	* should pass in ""	2728	* should pass in ""
2770	*/	2729	*/
2771	if (value == NULL) return TRUE;	2730	if (value == NULL)
2772
2773	field = (key_value *) malloc(sizeof(key_value));
2774
2775	field->key = add_refcount(canonical_key);
2776	field->value = add_string(value);
2777	/* Usual prepend-addition. */
2778	field->next = op->key_values;
2779	op->key_values = field;
2780
2781	return TRUE;	2731	return TRUE;
		2732
		2733	field = new key_value;
		2734
		2735	field->key = canonical_key;
		2736	field->value = value;
		2737	/* Usual prepend-addition. */
		2738	field->next = op->key_values;
		2739	op->key_values = field;
		2740
		2741	return TRUE;
2782	}	2742	}
2783		2743
2784	/*	2744	/*
2785	* Updates the key in op to value.	2745	* Updates the key in op to value.
2786	*	2746	*
…		…
2788	* and not add new ones.	2748	* and not add new ones.
2789	* In general, should be little reason FALSE is ever passed in for add_key	2749	* In general, should be little reason FALSE is ever passed in for add_key
2790	*	2750	*
2791	* Returns TRUE on success.	2751	* Returns TRUE on success.
2792	*/	2752	*/
		2753	int
2793	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2754	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2794	const char * canonical_key = NULL;	2755	{
2795	int floating_ref = FALSE;	2756	shstr key_ (key);
2796	int ret;	2757
		2758	return set_ob_key_value_s (op, key_, value, add_key);
		2759	}
		2760
		2761	object::depth_iterator::depth_iterator (object *container)
		2762	: iterator_base (container)
		2763	{
		2764	while (item->inv)
		2765	item = item->inv;
		2766	}
		2767
		2768	void
		2769	object::depth_iterator::next ()
		2770	{
		2771	if (item->below)
2797		2772	{
2798	/* HACK This mess is to make sure set_ob_value() passes a shared string	2773	item = item->below;
2799	* to get_ob_key_link(), without leaving a leaked refcount.	2774
2800	*/	2775	while (item->inv)
		2776	item = item->inv;
2801		2777	}
2802	canonical_key = find_string(key);	2778	else
2803	if (canonical_key == NULL) {	2779	item = item->env;
2804	canonical_key = add_string(key);
2805	floating_ref = TRUE;
2806	}
2807
2808	ret = set_ob_key_value_s(op, canonical_key, value, add_key);
2809
2810	if (floating_ref) {
2811	free_string(canonical_key);
2812	}
2813
2814	return ret;
2815	}	2780	}
		2781
		2782	// return a suitable string describing an objetc in enough detail to find it
		2783	const char *
		2784	object::debug_desc (char *info) const
		2785	{
		2786	char info2[256 * 3];
		2787	char *p = info;
		2788
		2789	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2790	count,
		2791	&name,
		2792	title ? " " : "",
		2793	title ? (const char *)title : "");
		2794
		2795	if (env)
		2796	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2797
		2798	if (map)
		2799	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2800
		2801	return info;
		2802	}
		2803
		2804	const char *
		2805	object::debug_desc () const
		2806	{
		2807	static char info[256 * 3];
		2808	return debug_desc (info);
		2809	}
		2810

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