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

Comparing deliantra/server/common/object.C (file contents):
Revision 1.5 by root, Sun Aug 27 16:15:11 2006 UTC vs.
Revision 1.78 by root, Fri Dec 22 16:34:00 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.5 2006/08/27 16:15:11 root Exp $";
4	*/
5
6	/*	1	/*
7	CrossFire, A Multiplayer game for X-windows	2	CrossFire, A Multiplayer game for X-windows
8		3
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	5	Copyright (C) 1992 Frank Tore Johansen
…		…
21		16
22	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software	18	along with this program; if not, write to the Free Software
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25		20
26	The authors can be reached via e-mail at crossfire-devel@real-time.com	21	The authors can be reached via e-mail at <crossfire@schmorp.de>
27	*/	22	*/
28		23
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying	25	sub/add_weight will transcend the environment updating the carrying
31	variable. */	26	variable. */
32	#include <global.h>	27	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	28	#include <stdio.h>
35	#include <sys/types.h>	29	#include <sys/types.h>
36	#include <sys/uio.h>	30	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	31	#include <object.h>
39	#include <funcpoint.h>	32	#include <funcpoint.h>
40	#include <skills.h>
41	#include <loader.h>	33	#include <loader.h>
42	#ifdef MEMORY_DEBUG	34
43	int nroffreeobjects = 0;	35	#include <bitset>
		36
44	int nrofallocobjects = 0;	37	int nrofallocobjects = 0;
45	#undef OBJ_EXPAND	38	static UUID uuid;
46	#define OBJ_EXPAND 1	39	const uint64 UUID_SKIP = 1<<19;
47	#else
48	object objarray[STARTMAX]; /* All objects, allocated this way at first */
49	int nroffreeobjects = STARTMAX; /* How many OBs allocated and free (free) */
50	int nrofallocobjects = STARTMAX; /* How many OBs allocated (free + used) */
51	#endif
52		40
53	object *objects; /* Pointer to the list of used objects */
54	object *free_objects; /* Pointer to the list of unused objects */
55	object *active_objects; /* List of active objects that need to be processed */	41	object *active_objects; /* List of active objects that need to be processed */
56		42
57	short freearr_x[SIZEOFFREE]=	43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
58	{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};	44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
60	short freearr_y[SIZEOFFREE]=	45	};
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,	46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
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};	47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
63	int maxfree[SIZEOFFREE]=	48	};
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,	49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
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};	50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		51	};
66	int freedir[SIZEOFFREE]= {	52	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,	53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
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};	54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		55	};
69		56
		57	static void
		58	write_uuid (void)
		59	{
		60	char filename1[MAX_BUF], filename2[MAX_BUF];
		61
		62	sprintf (filename1, "%s/uuid", settings.localdir);
		63	sprintf (filename2, "%s/uuid~", settings.localdir);
		64
		65	FILE *fp;
		66
		67	if (!(fp = fopen (filename2, "w")))
		68	{
		69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		70	return;
		71	}
		72
		73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		74	fclose (fp);
		75	rename (filename2, filename1);
		76	}
		77
		78	static void
		79	read_uuid (void)
		80	{
		81	char filename[MAX_BUF];
		82
		83	sprintf (filename, "%s/uuid", settings.localdir);
		84
		85	FILE *fp;
		86
		87	if (!(fp = fopen (filename, "r")))
		88	{
		89	if (errno == ENOENT)
		90	{
		91	LOG (llevInfo, "RESET uid to 1\n");
		92	uuid.seq = 0;
		93	write_uuid ();
		94	return;
		95	}
		96
		97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		98	_exit (1);
		99	}
		100
		101	int version;
		102	unsigned long long uid;
		103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		104	{
		105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		106	_exit (1);
		107	}
		108
		109	uuid.seq = uid;
		110	write_uuid ();
		111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		112	fclose (fp);
		113	}
		114
		115	UUID
		116	gen_uuid ()
		117	{
		118	UUID uid;
		119
		120	uid.seq = ++uuid.seq;
		121
		122	if (!(uuid.seq & (UUID_SKIP - 1)))
		123	write_uuid ();
		124
		125	return uid;
		126	}
		127
		128	void
		129	init_uuid ()
		130	{
		131	read_uuid ();
		132	}
70		133
71	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		135	static int
72	static int compare_ob_value_lists_one(const object * wants, const object * has) {	136	compare_ob_value_lists_one (const object *wants, const object *has)
		137	{
73	key_value * wants_field;	138	key_value *wants_field;
74		139
75	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
76	* objects with lists are rare, and lists stay short. If not, use a	141	* objects with lists are rare, and lists stay short. If not, use a
77	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
78	*/	143	*/
79		144
80	/* For each field in wants, */	145	/* For each field in wants, */
81	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)
		147	{
82	key_value * has_field;	148	key_value *has_field;
83		149
84	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
85	has_field = get_ob_key_link(has, wants_field->key);	151	has_field = get_ob_key_link (has, wants_field->key);
		152
		153	if (has_field == NULL)
86		154	{
87	if (has_field == NULL) {
88	/* No field with that name. */	155	/* No field with that name. */
89	return FALSE;	156	return FALSE;
90	}
91		157	}
		158
92	/* Found the matching field. */	159	/* Found the matching field. */
93	if (has_field->value != wants_field->value) {	160	if (has_field->value != wants_field->value)
		161	{
94	/* Values don't match, so this half of the comparison is false. */	162	/* Values don't match, so this half of the comparison is false. */
95	return FALSE;	163	return FALSE;
96	}	164	}
97		165
98	/* If we get here, we found a match. Now for the next field in wants. */	166	/* If we get here, we found a match. Now for the next field in wants. */
99	}
100		167	}
		168
101	/* If we get here, every field in wants has a matching field in has. */	169	/* If we get here, every field in wants has a matching field in has. */
102	return TRUE;	170	return TRUE;
103	}	171	}
104		172
105	/* Returns TRUE if ob1 has the same key_values as ob2. */	173	/* Returns TRUE if ob1 has the same key_values as ob2. */
		174	static int
106	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	175	compare_ob_value_lists (const object *ob1, const object *ob2)
		176	{
107	/* However, there may be fields in has which aren't partnered in wants,	177	/* However, there may be fields in has which aren't partnered in wants,
108	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
109	*/	179	*/
110	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
111	}	181	}
112		182
113	/* Function examines the 2 objects given to it, and returns true if	183	/* Function examines the 2 objects given to it, and returns true if
114	* they can be merged together.	184	* they can be merged together.
115	*	185	*
116	* Note that this function appears a lot longer than the macro it	186	* Note that this function appears a lot longer than the macro it
117	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
118	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
119	*	189	*
120	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
121	*	191	*
122	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
123	* check weight	193	* check weight
124	*/	194	*/
125		195
126	int CAN_MERGE(object *ob1, object *ob2) {	196	bool object::can_merge_slow (object *ob1, object *ob2)
127		197	{
128	/* A couple quicksanity checks */	198	/* A couple quicksanity checks */
129	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	199	if (ob1 == ob2
130		200	|| ob1->type != ob2->type
131	if (ob1->speed != ob2->speed) return 0;	201	|| ob1->speed != ob2->speed
132	/* Note sure why the following is the case - either the object has to	202	|| ob1->value != ob2->value
133	* be animated or have a very low speed. Is this an attempted monster	203	|| ob1->name != ob2->name)
134	* check?
135	*/
136	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)
137	return 0;	204	return 0;
138		205
		206	//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	207	/* 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	208	* value could not be stored in a sint32 (which unfortunately sometimes is
141	* used to store nrof).	209	* used to store nrof).
142	*/	210	*/
143	if (ob1->nrof+ob2->nrof >= 1UL<<31)	211	if (ob1->nrof + ob2->nrof >= 1UL << 31)
144	return 0;	212	return 0;
145		213
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.	214	/* 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	215	* 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	216	* 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	217	* are not equal - just if it has been identified, the been_applied
165	* flags lose any meaning.	218	* flags lose any meaning.
166	*/	219	*/
167	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))	220	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
168	SET_FLAG(ob1, FLAG_BEEN_APPLIED);	221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
169		222
170	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))	223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
171	SET_FLAG(ob2, FLAG_BEEN_APPLIED);	224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
172		225
173		226	if ((ob1->flags ^ ob2->flags).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
174	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	227	|| ob1->arch != ob2->arch
175	* being locked in inventory should prevent merging.	228	|| ob1->name != ob2->name
176	* 0x4 in flags3 is CLIENT_SENT	229	|| ob1->title != ob2->title
177	*/	230	|| ob1->msg != ob2->msg
178	if ((ob1->arch != ob2->arch) ||	231	|| ob1->weight != ob2->weight
179	(ob1->flags[0] != ob2->flags[0]) ||
180	(ob1->flags[1] != ob2->flags[1]) ||
181	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||
182	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
183	(ob1->name != ob2->name) ||
184	(ob1->title != ob2->title) ||
185	(ob1->msg != ob2->msg) ||
186	(ob1->weight != ob2->weight) ||
187	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||	232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
188	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||	233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
189	(ob1->attacktype != ob2->attacktype) ||	234	|| ob1->attacktype != ob2->attacktype
190	(ob1->magic != ob2->magic) ||	235	|| ob1->magic != ob2->magic
191	(ob1->slaying != ob2->slaying) ||	236	|| ob1->slaying != ob2->slaying
192	(ob1->skill != ob2->skill) ||	237	|| ob1->skill != ob2->skill
193	(ob1->value != ob2->value) ||	238	|| ob1->value != ob2->value
194	(ob1->animation_id != ob2->animation_id) ||	239	|| ob1->animation_id != ob2->animation_id
195	(ob1->client_type != ob2->client_type) ||	240	|| ob1->client_type != ob2->client_type
196	(ob1->materialname != ob2->materialname) ||	241	|| ob1->materialname != ob2->materialname
197	(ob1->lore != ob2->lore) ||	242	|| ob1->lore != ob2->lore
198	(ob1->subtype != ob2->subtype) ||	243	|| ob1->subtype != ob2->subtype
199	(ob1->move_type != ob2->move_type) ||	244	|| ob1->move_type != ob2->move_type
200	(ob1->move_block != ob2->move_block) ||	245	|| ob1->move_block != ob2->move_block
201	(ob1->move_allow != ob2->move_allow) ||	246	|| ob1->move_allow != ob2->move_allow
202	(ob1->move_on != ob2->move_on) ||	247	|| ob1->move_on != ob2->move_on
203	(ob1->move_off != ob2->move_off) ||	248	|| ob1->move_off != ob2->move_off
204	(ob1->move_slow != ob2->move_slow) ||	249	|| ob1->move_slow != ob2->move_slow
205	(ob1->move_slow_penalty != ob2->move_slow_penalty)	250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
206	)
207	return 0;	251	return 0;
208		252
		253	/* This is really a spellbook check - really, we should
		254	* check all objects in the inventory.
		255	*/
		256	if (ob1->inv || ob2->inv)
		257	{
		258	/* if one object has inventory but the other doesn't, not equiv */
		259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
		260	return 0;
		261
		262	/* Now check to see if the two inventory objects could merge */
		263	if (!object::can_merge (ob1->inv, ob2->inv))
		264	return 0;
		265
		266	/* inventory ok - still need to check rest of this object to see
		267	* if it is valid.
		268	*/
		269	}
		270
209	/* Don't merge objects that are applied. With the new 'body' code,	271	/* Don't merge objects that are applied. With the new 'body' code,
210	* it is possible for most any character to have more than one of	272	* it is possible for most any character to have more than one of
211	* some items equipped, and we don't want those to merge.	273	* some items equipped, and we don't want those to merge.
212	*/	274	*/
213	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	275	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
214	return 0;	276	return 0;
215		277
		278	/* Note sure why the following is the case - either the object has to
		279	* be animated or have a very low speed. Is this an attempted monster
		280	* check?
		281	*/
		282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
		283	return 0;
		284
216	switch (ob1->type) {	285	switch (ob1->type)
		286	{
217	case SCROLL:	287	case SCROLL:
218	if (ob1->level != ob2->level) return 0;	288	if (ob1->level != ob2->level)
		289	return 0;
219	break;	290	break;
220
221	}	291	}
		292
222	if (ob1->key_values != NULL || ob2->key_values != NULL) {	293	if (ob1->key_values != NULL || ob2->key_values != NULL)
		294	{
223	/* At least one of these has key_values. */	295	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {	296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
225	/* One has fields, but the other one doesn't. */	297	/* One has fields, but the other one doesn't. */
226	return 0;	298	return 0;
227	} else if (!compare_ob_value_lists(ob1, ob2)) {	299	else if (!compare_ob_value_lists (ob1, ob2))
228	return 0;	300	return 0;
229	}	301	}
		302
		303	//TODO: generate an event or call into perl for additional checks
		304	if (ob1->self || ob2->self)
230	}	305	{
		306	ob1->optimise ();
		307	ob2->optimise ();
231		308
		309	if (ob1->self || ob2->self)
		310	return 0;
		311	}
		312
232	/* Everything passes, must be OK. */	313	/* Everything passes, must be OK. */
233	return 1;	314	return 1;
234	}	315	}
235		316
236	/*	317	/*
237	* sum_weight() is a recursive function which calculates the weight	318	* sum_weight() is a recursive function which calculates the weight
238	* an object is carrying. It goes through in figures out how much	319	* an object is carrying. It goes through in figures out how much
239	* containers are carrying, and sums it up.	320	* containers are carrying, and sums it up.
240	*/	321	*/
241	signed long sum_weight(object *op) {	322	long
		323	sum_weight (object *op)
		324	{
242	signed long sum;	325	long sum;
243	object *inv;	326	object *inv;
		327
244	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		329	{
245	if (inv->inv)	330	if (inv->inv)
246	sum_weight(inv);	331	sum_weight (inv);
247	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
248	}	333	}
		334
249	if (op->type == CONTAINER && op->stats.Str)	335	if (op->type == CONTAINER && op->stats.Str)
250	sum = (sum * (100 - op->stats.Str))/100;	336	sum = (sum * (100 - op->stats.Str)) / 100;
		337
251	if(op->carrying != sum)	338	if (op->carrying != sum)
252	op->carrying = sum;	339	op->carrying = sum;
		340
253	return sum;	341	return sum;
254	}	342	}
255		343
256	/**	344	/**
257	* Return the outermost environment object for a given object.	345	* Return the outermost environment object for a given object.
258	*/	346	*/
259		347
		348	object *
260	object *object_get_env_recursive (object *op) {	349	object_get_env_recursive (object *op)
		350	{
261	while (op->env != NULL)	351	while (op->env != NULL)
262	op = op->env;	352	op = op->env;
263	return op;	353	return op;
264	}
265
266	/*
267	* 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
269	* or find a player.
270	*/
271
272	object *is_player_inv (object *op) {
273	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
274	if (op->env==op)
275	op->env = NULL;
276	return op;
277	}	354	}
278		355
279	/*	356	/*
280	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	357	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
281	* Some error messages.	358	* Some error messages.
282	* The result of the dump is stored in the static global errmsg array.	359	* The result of the dump is stored in the static global errmsg array.
283	*/	360	*/
284		361
285	void dump_object2(object *op) {	362	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) {	363	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	{	364	{
340	char *cp;	365	if (!op)
		366	return strdup ("[NULLOBJ]");
341		367
342	if(op==NULL)	368	object_freezer freezer;
343	{	369	save_object (freezer, op, 3);
344	strcpy(outstr,"[NULL pointer]");	370	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	}	371	}
382		372
383	/*	373	/*
384	* get_nearest_part(multi-object, object 2) returns the part of the	374	* get_nearest_part(multi-object, object 2) returns the part of the
385	* multi-object 1 which is closest to the second object.	375	* multi-object 1 which is closest to the second object.
386	* If it's not a multi-object, it is returned.	376	* If it's not a multi-object, it is returned.
387	*/	377	*/
388		378
		379	object *
389	object *get_nearest_part(object *op, const object *pl) {	380	get_nearest_part (object *op, const object *pl)
		381	{
390	object *tmp,*closest;	382	object *tmp, *closest;
391	int last_dist,i;	383	int last_dist, i;
		384
392	if(op->more==NULL)	385	if (op->more == NULL)
393	return op;	386	return op;
394	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	387	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
395	if((i=distance(tmp,pl))<last_dist)	388	if ((i = distance (tmp, pl)) < last_dist)
396	closest=tmp,last_dist=i;	389	closest = tmp, last_dist = i;
397	return closest;	390	return closest;
398	}	391	}
399		392
400	/*	393	/*
401	* Returns the object which has the count-variable equal to the argument.	394	* Returns the object which has the count-variable equal to the argument.
402	*/	395	*/
403		396
		397	object *
404	object *find_object(tag_t i) {	398	find_object (tag_t i)
405	object *op;	399	{
406	for(op=objects;op!=NULL;op=op->next)	400	for (object *op = object::first; op; op = op->next)
407	if(op->count==i)	401	if (op->count == i)
408	break;	402	return op;
		403
409	return op;	404	return 0;
410	}	405	}
411		406
412	/*	407	/*
413	* Returns the first object which has a name equal to the argument.	408	* Returns the first object which has a name equal to the argument.
414	* Used only by the patch command, but not all that useful.	409	* Used only by the patch command, but not all that useful.
415	* Enables features like "patch <name-of-other-player> food 999"	410	* Enables features like "patch <name-of-other-player> food 999"
416	*/	411	*/
417		412
		413	object *
418	object *find_object_name(const char *str) {	414	find_object_name (const char *str)
419	const char *name=add_string(str);	415	{
		416	shstr_cmp str_ (str);
420	object *op;	417	object *op;
		418
421	for(op=objects;op!=NULL;op=op->next)	419	for (op = object::first; op != NULL; op = op->next)
422	if(op->name==name)	420	if (op->name == str_)
423	break;	421	break;
424	free_string(name);	422
425	return op;	423	return op;
426	}	424	}
427		425
		426	void
428	void free_all_object_data(void) {	427	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	{	428	{
470	if (!op) return;	429	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	}	430	}
478
479
480		431
481	/*	432	/*
482	* Sets the owner and sets the skill and exp pointers to owner's current	433	* Sets the owner and sets the skill and exp pointers to owner's current
483	* skill and experience objects.	434	* skill and experience objects.
484	*/	435	*/
485	void set_owner (object *op, object *owner)	436	void
		437	object::set_owner (object *owner)
486	{	438	{
487	if(owner==NULL||op==NULL)	439	if (!owner)
488	return;	440	return;
489		441
490	/* next line added to allow objects which own objects */	442	/* next line added to allow objects which own objects */
491	/* Add a check for ownercounts in here, as I got into an endless loop	443	/* 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	444	* with the fireball owning a poison cloud which then owned the
493	* fireball. I believe that was caused by one of the objects getting	445	* fireball. I believe that was caused by one of the objects getting
494	* freed and then another object replacing it. Since the ownercounts	446	* 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.	447	* didn't match, this check is valid and I believe that cause is valid.
496	*/	448	*/
497	while (owner->owner && owner!=owner->owner &&	449	while (owner->owner)
498	owner->ownercount==owner->owner->count) owner=owner->owner;	450	owner = owner->owner;
499		451
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;	452	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	}	453	}
554		454
555	/* Zero the key_values on op, decrementing the shared-string	455	/* Zero the key_values on op, decrementing the shared-string
556	* refcounts and freeing the links.	456	* refcounts and freeing the links.
557	*/	457	*/
		458	static void
558	static void free_key_values(object * op) {	459	free_key_values (object *op)
559	key_value * i;	460	{
560	key_value * next = NULL;	461	for (key_value *i = op->key_values; i != 0;)
561		462	{
562	if (op->key_values == NULL) return;	463	key_value *next = i->next;
		464	delete i;
		465
		466	i = next;
563		467	}
564	for (i = op->key_values; i != NULL; i = next) {	468
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;	469	op->key_values = 0;
575	}	470	}
576		471
577
578	/*	472	/*
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);
606
607	/* the memset will clear all these values for us, but we need
608	* to reduce the refcount on them.
609	*/
610	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);
611	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);
612	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);
613	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);
614	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);
615	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);
616	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);
617	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);
618	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);
619
620
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);
627
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 */
643
644	op->expmul=1.0;
645	op->face = blank_face;
646	op->attacked_by_count = (tag_t) -1;
647	if (settings.casting_time)
648	op->casting_time = -1;
649
650	}
651
652	/*
653	* copy object first frees everything allocated by the second object,	473	* copy_to first frees everything allocated by the dst object,
654	* and then copies the contends of the first object into the second	474	* and then copies the contents of itself into the second
655	* object, allocating what needs to be allocated. Basically, any	475	* object, allocating what needs to be allocated. Basically, any
656	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	476	* 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	477	* if the first object is freed, the pointers in the new object
658	* will point at garbage.	478	* will point at garbage.
659	*/	479	*/
		480	void
		481	object::copy_to (object *dst)
		482	{
		483	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
		484	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
660		485
661	void copy_object(object *op2, object *op) {	486	*(object_copy *)dst = *this;
662	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);	487	*(object_pod *)dst = *this;
663	event *evt, *evt2, *evt_new;
664		488
665	op->clear ();	489	if (self || cb)
		490	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
666		491
667	/* Decrement the refcounts, but don't bother zeroing the fields;	492	if (is_freed)
668	they'll be overwritten by memcpy. */	493	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		494
680	/* Basically, same code as from clear_object() */	495	if (is_removed)
681	for (evt = op->events; evt; evt=evt2) {	496	SET_FLAG (dst, FLAG_REMOVED);
682	evt2 = evt->next;
683		497
684	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);	498	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	op2->clone (op);
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;	499	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
712		500
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. */	501	/* Copy over key_values, if any. */
735	if (op2->key_values != NULL) {	502	if (key_values)
736	key_value * tail = NULL;	503	{
		504	key_value *tail = 0;
737	key_value * i;	505	key_value *i;
738		506
739	op->key_values = NULL;	507	dst->key_values = 0;
740		508
741	for (i = op2->key_values; i != NULL; i = i->next) {	509	for (i = key_values; i; i = i->next)
742	key_value * new_link = (key_value *) malloc(sizeof(key_value));	510	{
		511	key_value *new_link = new key_value;
743		512
744	new_link->next = NULL;	513	new_link->next = 0;
745	new_link->key = add_refcount(i->key);	514	new_link->key = i->key;
746	if (i->value)	515	new_link->value = i->value;
747	new_link->value = add_refcount(i->value);
748	else
749	new_link->value = NULL;
750		516
751	/* Try and be clever here, too. */	517	/* Try and be clever here, too. */
752	if (op->key_values == NULL) {	518	if (!dst->key_values)
753	op->key_values = new_link;	519	{
754	tail = new_link;	520	dst->key_values = new_link;
755	} else {	521	tail = new_link;
756	tail->next = new_link;	522	}
757	tail = new_link;	523	else
		524	{
		525	tail->next = new_link;
		526	tail = new_link;
		527	}
		528	}
758	}	529	}
759	}
760	}
761		530
762	update_ob_speed(op);	531	update_ob_speed (dst);
763	}	532	}
764		533
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;	534	object *
806		535	object::clone ()
807	if(free_objects==NULL) {	536	{
808	expand_objects();	537	object *neu = create ();
809	}	538	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;	539	return neu;
848	}	540	}
849		541
850	/*	542	/*
851	* If an object with the IS_TURNABLE() flag needs to be turned due	543	* 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	544	* 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.	545	* be called to update the face variable, _and_ how it looks on the map.
854	*/	546	*/
855		547
		548	void
856	void update_turn_face(object *op) {	549	update_turn_face (object *op)
		550	{
857	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	551	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
858	return;	552	return;
859	SET_ANIMATION(op, op->direction);	553	SET_ANIMATION (op, op->direction);
860	update_object(op,UP_OBJ_FACE);	554	update_object (op, UP_OBJ_FACE);
861	}	555	}
862		556
863	/*	557	/*
864	* Updates the speed of an object. If the speed changes from 0 to another	558	* 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.	559	* 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.	560	* This function needs to be called whenever the speed of an object changes.
867	*/	561	*/
868		562	void
869	void update_ob_speed(object *op) {	563	update_ob_speed (object *op)
		564	{
870	extern int arch_init;	565	extern int arch_init;
871		566
872	/* No reason putting the archetypes objects on the speed list,	567	/* No reason putting the archetypes objects on the speed list,
873	* since they never really need to be updated.	568	* since they never really need to be updated.
874	*/	569	*/
875		570
876	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	571	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		572	{
877	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	573	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
878	#ifdef MANY_CORES	574	#ifdef MANY_CORES
879	abort();	575	abort ();
880	#else	576	#else
881	op->speed = 0;	577	op->speed = 0;
882	#endif	578	#endif
883	}	579	}
		580
884	if (arch_init) {	581	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;	582	return;
891		583
		584	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		585	{
		586	/* If already on active list, don't do anything */
		587	if (op->active_next || op->active_prev || op == active_objects)
		588	return;
		589
892	/* process_events() expects us to insert the object at the beginning	590	/* process_events() expects us to insert the object at the beginning
893	* of the list. */	591	* of the list. */
894	op->active_next = active_objects;	592	op->active_next = active_objects;
		593
895	if (op->active_next!=NULL)	594	if (op->active_next != NULL)
896	op->active_next->active_prev = op;	595	op->active_next->active_prev = op;
		596
897	active_objects = op;	597	active_objects = op;
		598	}
		599	else
898	}	600	{
899	else {
900	/* If not on the active list, nothing needs to be done */	601	/* If not on the active list, nothing needs to be done */
901	if (!op->active_next && !op->active_prev && op!=active_objects)	602	if (!op->active_next && !op->active_prev && op != active_objects)
902	return;	603	return;
903		604
904	if (op->active_prev==NULL) {	605	if (op->active_prev == NULL)
		606	{
905	active_objects = op->active_next;	607	active_objects = op->active_next;
		608
906	if (op->active_next!=NULL)	609	if (op->active_next != NULL)
907	op->active_next->active_prev = NULL;	610	op->active_next->active_prev = NULL;
908	}	611	}
909	else {	612	else
		613	{
910	op->active_prev->active_next = op->active_next;	614	op->active_prev->active_next = op->active_next;
		615
911	if (op->active_next)	616	if (op->active_next)
912	op->active_next->active_prev = op->active_prev;	617	op->active_next->active_prev = op->active_prev;
913	}	618	}
		619
914	op->active_next = NULL;	620	op->active_next = NULL;
915	op->active_prev = NULL;	621	op->active_prev = NULL;
916	}	622	}
917	}	623	}
918		624
919	/* This function removes object 'op' from the list of active	625	/* This function removes object 'op' from the list of active
920	* objects.	626	* objects.
…		…
922	* reference maps where you don't want an object that isn't	628	* reference maps where you don't want an object that isn't
923	* in play chewing up cpu time getting processed.	629	* in play chewing up cpu time getting processed.
924	* The reverse of this is to call update_ob_speed, which	630	* The reverse of this is to call update_ob_speed, which
925	* will do the right thing based on the speed of the object.	631	* will do the right thing based on the speed of the object.
926	*/	632	*/
		633	void
927	void remove_from_active_list(object *op)	634	remove_from_active_list (object *op)
928	{	635	{
929	/* If not on the active list, nothing needs to be done */	636	/* If not on the active list, nothing needs to be done */
930	if (!op->active_next && !op->active_prev && op!=active_objects)	637	if (!op->active_next && !op->active_prev && op != active_objects)
931	return;	638	return;
932		639
933	if (op->active_prev==NULL) {	640	if (op->active_prev == NULL)
		641	{
934	active_objects = op->active_next;	642	active_objects = op->active_next;
935	if (op->active_next!=NULL)	643	if (op->active_next != NULL)
936	op->active_next->active_prev = NULL;	644	op->active_next->active_prev = NULL;
		645	}
		646	else
937	}	647	{
938	else {
939	op->active_prev->active_next = op->active_next;	648	op->active_prev->active_next = op->active_next;
940	if (op->active_next)	649	if (op->active_next)
941	op->active_next->active_prev = op->active_prev;	650	op->active_next->active_prev = op->active_prev;
942	}	651	}
943	op->active_next = NULL;	652	op->active_next = NULL;
944	op->active_prev = NULL;	653	op->active_prev = NULL;
945	}	654	}
946		655
947	/*	656	/*
948	* update_object() updates the array which represents the map.	657	* update_object() updates the the map.
949	* It takes into account invisible objects (and represent squares covered	658	* It takes into account invisible objects (and represent squares covered
950	* by invisible objects by whatever is below them (unless it's another	659	* by invisible objects by whatever is below them (unless it's another
951	* invisible object, etc...)	660	* invisible object, etc...)
952	* If the object being updated is beneath a player, the look-window	661	* If the object being updated is beneath a player, the look-window
953	* of that player is updated (this might be a suboptimal way of	662	* of that player is updated (this might be a suboptimal way of
954	* updating that window, though, since update_object() is called _often_)	663	* updating that window, though, since update_object() is called _often_)
955	*	664	*
956	* action is a hint of what the caller believes need to be done.	665	* action is a hint of what the caller believes need to be done.
957	* For example, if the only thing that has changed is the face (due to
958	* an animation), we don't need to call update_position until that actually
959	* comes into view of a player. OTOH, many other things, like addition/removal
960	* of walls or living creatures may need us to update the flags now.
961	* current action are:	666	* current action are:
962	* UP_OBJ_INSERT: op was inserted	667	* UP_OBJ_INSERT: op was inserted
963	* UP_OBJ_REMOVE: op was removed	668	* UP_OBJ_REMOVE: op was removed
964	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	669	* 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.	670	* as that is easier than trying to look at what may have changed.
966	* UP_OBJ_FACE: only the objects face has changed.	671	* UP_OBJ_FACE: only the objects face has changed.
967	*/	672	*/
968		673	void
969	void update_object(object *op, int action) {	674	update_object (object *op, int action)
970	int update_now=0, flags;	675	{
971	MoveType move_on, move_off, move_block, move_slow;	676	MoveType move_on, move_off, move_block, move_slow;
972		677
973	if (op == NULL) {	678	if (op == NULL)
		679	{
974	/* this should never happen */	680	/* this should never happen */
975	LOG(llevDebug,"update_object() called for NULL object.\n");	681	LOG (llevDebug, "update_object() called for NULL object.\n");
976	return;	682	return;
977	}
978		683	}
979	if(op->env!=NULL) {	684
		685	if (op->env)
		686	{
980	/* Animation is currently handled by client, so nothing	687	/* Animation is currently handled by client, so nothing
981	* to do in this case.	688	* to do in this case.
982	*/	689	*/
983	return;	690	return;
984	}	691	}
985		692
986	/* If the map is saving, don't do anything as everything is	693	/* If the map is saving, don't do anything as everything is
987	* going to get freed anyways.	694	* going to get freed anyways.
988	*/	695	*/
989	if (!op->map || op->map->in_memory == MAP_SAVING) return;	696	if (!op->map || op->map->in_memory == MAP_SAVING)
990		697	return;
		698
991	/* make sure the object is within map boundaries */	699	/* make sure the object is within map boundaries */
992	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	700	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)) {	701	{
994	LOG(llevError,"update_object() called for object out of map!\n");	702	LOG (llevError, "update_object() called for object out of map!\n");
995	#ifdef MANY_CORES	703	#ifdef MANY_CORES
996	abort();	704	abort ();
997	#endif	705	#endif
998	return;	706	return;
999	}
1000		707	}
1001	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
1002	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);
1004	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);
1006	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
1007		708
		709	mapspace &m = op->ms ();
		710
		711	if (m.flags_ & P_NEED_UPDATE)
		712	/* nop */;
1008	if (action == UP_OBJ_INSERT) {	713	else if (action == UP_OBJ_INSERT)
		714	{
		715	// this is likely overkill, TODO: revisit (schmorp)
1009	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	716	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
1010	update_now=1;
1011
1012	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	717	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
1013	update_now=1;	718	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
1014		719	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		720	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
1015	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	721	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
1016	update_now=1;	722	|| (m.move_on | op->move_on ) != m.move_on
1017		723	|| (m.move_off | op->move_off ) != m.move_off
1018	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	724	|| (m.move_slow | op->move_slow) != m.move_slow
1019	update_now=1;
1020
1021	if ((move_on | op->move_on) != move_on) update_now=1;
1022	if ((move_off | op->move_off) != move_off) update_now=1;
1023	/* This isn't perfect, but I don't expect a lot of objects to	725	/* This isn't perfect, but I don't expect a lot of objects to
1024	* to have move_allow right now.	726	* to have move_allow right now.
1025	*/	727	*/
1026	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	728	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
1027	update_now=1;	729	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
1028	if ((move_slow | op->move_slow) != move_slow) update_now=1;	730	m.flags_ = P_NEED_UPDATE;
1029	}	731	}
1030	/* if the object is being removed, we can't make intelligent	732	/* if the object is being removed, we can't make intelligent
1031	* decisions, because remove_ob can't really pass the object	733	* decisions, because remove_ob can't really pass the object
1032	* that is being removed.	734	* that is being removed.
1033	*/	735	*/
1034	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	736	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1035	update_now=1;	737	m.flags_ = P_NEED_UPDATE;
1036	} else if (action == UP_OBJ_FACE) {	738	else if (action == UP_OBJ_FACE)
1037	/* Nothing to do for that case */	739	/* Nothing to do for that case */ ;
1038	}
1039	else {	740	else
1040	LOG(llevError,"update_object called with invalid action: %d\n", action);	741	LOG (llevError, "update_object called with invalid action: %d\n", action);
1041	}
1042		742
1043	if (update_now) {
1044	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);
1046	}
1047
1048	if(op->more!=NULL)	743	if (op->more)
1049	update_object(op->more, action);	744	update_object (op->more, action);
1050	}	745	}
1051		746
		747	object::vector object::mortals;
		748	object::vector object::objects; // not yet used
		749	object *object::first;
		750
		751	void object::free_mortals ()
		752	{
		753	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
		754	if ((*i)->refcnt)
		755	++i; // further delay freeing
		756	else
		757	{
		758	delete *i;
		759	mortals.erase (i);
		760	}
		761	}
		762
		763	object::object ()
		764	{
		765	SET_FLAG (this, FLAG_REMOVED);
		766
		767	expmul = 1.0;
		768	face = blank_face;
		769	}
		770
		771	object::~object ()
		772	{
		773	free_key_values (this);
		774	}
		775
		776	void object::link ()
		777	{
		778	count = ++ob_count;
		779	uuid = gen_uuid ();
		780
		781	prev = 0;
		782	next = object::first;
		783
		784	if (object::first)
		785	object::first->prev = this;
		786
		787	object::first = this;
		788	}
		789
		790	void object::unlink ()
		791	{
		792	if (this == object::first)
		793	object::first = next;
		794
		795	/* Remove this object from the list of used objects */
		796	if (prev) prev->next = next;
		797	if (next) next->prev = prev;
		798
		799	prev = 0;
		800	next = 0;
		801	}
		802
		803	object *object::create ()
		804	{
		805	object *op = new object;
		806	op->link ();
		807	return op;
		808	}
1052		809
1053	/*	810	/*
1054	* free_object() frees everything allocated by an object, removes	811	* free_object() frees everything allocated by an object, removes
1055	* it from the list of used objects, and puts it on the list of	812	* 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.	813	* free objects. The IS_FREED() flag is set in the object.
1057	* The object must have been removed by remove_ob() first for	814	* The object must have been removed by remove_ob() first for
1058	* this function to succeed.	815	* this function to succeed.
1059	*	816	*
1060	* If free_inventory is set, free inventory as well. Else drop items in	817	* If destroy_inventory is set, free inventory as well. Else drop items in
1061	* inventory to the ground.	818	* inventory to the ground.
1062	*/	819	*/
		820	void object::destroy (bool destroy_inventory)
		821	{
		822	if (QUERY_FLAG (this, FLAG_FREED))
		823	return;
1063		824
1064	void free_object(object *ob) {	825	if (QUERY_FLAG (this, FLAG_FRIENDLY))
1065	free_object2(ob, 0);	826	remove_friendly_object (this);
1066	}
1067	void free_object2(object *ob, int free_inventory) {
1068	object *tmp,*op;
1069		827
1070	ob->clear ();
1071
1072	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	828	if (!QUERY_FLAG (this, FLAG_REMOVED))
1073	LOG(llevDebug,"Free object called with non removed object\n");	829	remove ();
1074	dump_object(ob);	830
1075	#ifdef MANY_CORES	831	SET_FLAG (this, FLAG_FREED);
1076	abort();	832
1077	#endif	833	if (more)
1078	}	834	{
1079	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	835	more->destroy (destroy_inventory);
1080	LOG(llevMonster,"Warning: tried to free friendly object.\n");	836	more = 0;
1081	remove_friendly_object(ob);	837	}
		838
		839	if (inv)
1082	}	840	{
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 -	841	/* Only if the space blocks everything do we not process -
1094	* if some form of movemnt is allowed, let objects	842	* if some form of movement is allowed, let objects
1095	* drop on that space.	843	* drop on that space.
1096	*/	844	*/
1097	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	845	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))	846	{
1099	{	847	object *op = inv;
1100	op=ob->inv;	848
1101	while(op!=NULL) {	849	while (op)
1102	tmp=op->below;	850	{
1103	remove_ob(op);	851	object *tmp = op->below;
1104	free_object2(op, free_inventory);	852	op->destroy (destroy_inventory);
1105	op=tmp;	853	op = tmp;
		854	}
		855	}
		856	else
		857	{ /* Put objects in inventory onto this space */
		858	object *op = inv;
		859
		860	while (op)
		861	{
		862	object *tmp = op->below;
		863
		864	op->remove ();
		865
		866	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
		867	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
		868	op->destroy ();
		869	else
		870	{
		871	op->x = x;
		872	op->y = y;
		873	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
		874	}
		875
		876	op = tmp;
		877	}
		878	}
1106	}	879	}
1107	}	880
1108	else { /* Put objects in inventory onto this space */	881	// hack to ensure that freed objects still have a valid map
1109	op=ob->inv;	882	{
1110	while(op!=NULL) {	883	static maptile *freed_map; // freed objects are moved here to avoid crashes
1111	tmp=op->below;	884
1112	remove_ob(op);	885	if (!freed_map)
1113	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||	886	{
1114	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))	887	freed_map = new maptile;
1115	free_object(op);	888
1116	else {	889	freed_map->name = "/internal/freed_objects_map";
1117	op->x=ob->x;	890	freed_map->width = 3;
1118	op->y=ob->y;	891	freed_map->height = 3;
1119	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */	892
1120	}	893	freed_map->allocate ();
1121	op=tmp;
1122	}
1123	}
1124	}	894	}
		895
		896	map = freed_map;
		897	x = 1;
		898	y = 1;
		899	}
		900
		901	// clear those pointers that likely might have circular references to us
		902	owner = 0;
		903	enemy = 0;
		904	attacked_by = 0;
		905
		906	// only relevant for players(?), but make sure of it anyways
		907	contr = 0;
		908
1125	/* Remove object from the active list */	909	/* Remove object from the active list */
1126	ob->speed = 0;	910	speed = 0;
1127	update_ob_speed(ob);	911	update_ob_speed (this);
1128		912
1129	SET_FLAG(ob, FLAG_FREED);	913	unlink ();
1130	ob->count = 0;
1131		914
1132	/* Remove this object from the list of used objects */	915	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	}	916	}
1217		917
1218	/*	918	/*
1219	* sub_weight() recursively (outwards) subtracts a number from the	919	* sub_weight() recursively (outwards) subtracts a number from the
1220	* weight of an object (and what is carried by it's environment(s)).	920	* weight of an object (and what is carried by it's environment(s)).
1221	*/	921	*/
1222		922	void
1223	void sub_weight (object *op, signed long weight) {	923	sub_weight (object *op, signed long weight)
		924	{
1224	while (op != NULL) {	925	while (op != NULL)
		926	{
1225	if (op->type == CONTAINER) {	927	if (op->type == CONTAINER)
1226	weight=(signed long)(weight*(100-op->stats.Str)/100);	928	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1227	}	929
1228	op->carrying-=weight;	930	op->carrying -= weight;
1229	op = op->env;	931	op = op->env;
1230	}	932	}
1231	}	933	}
1232		934
1233	/* remove_ob(op):	935	/* op->remove ():
1234	* This function removes the object op from the linked list of objects	936	* 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	937	* which it is currently tied to. When this function is done, the
1236	* object will have no environment. If the object previously had an	938	* object will have no environment. If the object previously had an
1237	* environment, the x and y coordinates will be updated to	939	* environment, the x and y coordinates will be updated to
1238	* the previous environment.	940	* the previous environment.
1239	* Beware: This function is called from the editor as well!	941	* Beware: This function is called from the editor as well!
1240	*/	942	*/
1241		943	void
1242	void remove_ob(object *op) {	944	object::remove ()
		945	{
1243	object *tmp,*last=NULL;	946	object *tmp, *last = 0;
1244	object *otmp;	947	object *otmp;
1245	tag_t tag;	948
1246	int check_walk_off;	949	int check_walk_off;
1247	mapstruct *m;
1248	sint16 x,y;
1249
1250		950
1251	if(QUERY_FLAG(op,FLAG_REMOVED)) {	951	if (QUERY_FLAG (this, FLAG_REMOVED))
1252	dump_object(op);	952	return;
1253	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1254		953
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);	954	SET_FLAG (this, FLAG_REMOVED);
1271		955
		956	if (more)
		957	more->remove ();
		958
1272	/*	959	/*
1273	* In this case, the object to be removed is in someones	960	* In this case, the object to be removed is in someones
1274	* inventory.	961	* inventory.
1275	*/	962	*/
1276	if(op->env!=NULL) {	963	if (env)
1277	if(op->nrof)	964	{
		965	if (nrof)
1278	sub_weight(op->env, op->weight*op->nrof);	966	sub_weight (env, weight * nrof);
1279	else	967	else
1280	sub_weight(op->env, op->weight+op->carrying);	968	sub_weight (env, weight + carrying);
1281		969
1282	/* NO_FIX_PLAYER is set when a great many changes are being	970	/* NO_FIX_PLAYER is set when a great many changes are being
1283	* made to players inventory. If set, avoiding the call	971	* made to players inventory. If set, avoiding the call
1284	* to save cpu time.	972	* to save cpu time.
1285	*/	973	*/
1286	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	974	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1287	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	975	otmp->update_stats ();
1288	fix_player(otmp);
1289		976
1290	if(op->above!=NULL)	977	if (above != NULL)
1291	op->above->below=op->below;	978	above->below = below;
1292	else	979	else
1293	op->env->inv=op->below;	980	env->inv = below;
1294		981
1295	if(op->below!=NULL)	982	if (below != NULL)
1296	op->below->above=op->above;	983	below->above = above;
1297		984
1298	/* we set up values so that it could be inserted into	985	/* we set up values so that it could be inserted into
1299	* the map, but we don't actually do that - it is up	986	* the map, but we don't actually do that - it is up
1300	* to the caller to decide what we want to do.	987	* to the caller to decide what we want to do.
1301	*/	988	*/
1302	op->x=op->env->x,op->y=op->env->y;	989	x = env->x, y = env->y;
1303	op->ox=op->x,op->oy=op->y;	990	map = env->map;
1304	op->map=op->env->map;	991	above = 0, below = 0;
1305	op->above=NULL,op->below=NULL;	992	env = 0;
1306	op->env=NULL;	993	}
1307	return;	994	else if (map)
1308	}	995	{
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	996	/* Re did the following section of code - it looks like it had
1332	* lots of logic for things we no longer care about	997	* lots of logic for things we no longer care about
1333	*/	998	*/
1334		999
1335	/* link the object above us */	1000	/* link the object above us */
1336	if (op->above)	1001	if (above)
1337	op->above->below=op->below;	1002	above->below = below;
1338	else	1003	else
1339	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */	1004	map->at (x, y).top = below; /* we were top, set new top */
1340		1005
1341	/* Relink the object below us, if there is one */	1006	/* Relink the object below us, if there is one */
1342	if(op->below) {	1007	if (below)
1343	op->below->above=op->above;	1008	below->above = above;
1344	} else {	1009	else
		1010	{
1345	/* Nothing below, which means we need to relink map object for this space	1011	/* 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	1012	* use translated coordinates in case some oddness with map tiling is
1347	* evident	1013	* evident
1348	*/	1014	*/
1349	if(GET_MAP_OB(m,x,y)!=op) {	1015	if (GET_MAP_OB (map, x, y) != this)
1350	dump_object(op);	1016	{
		1017	char *dump = dump_object (this);
		1018	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);	1019	"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));	1020	free (dump);
1353	LOG(llevError,"%s\n",errmsg);	1021	dump = dump_object (GET_MAP_OB (map, x, y));
1354	}	1022	LOG (llevError, "%s\n", dump);
1355	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1023	free (dump);
1356	}	1024	}
1357	op->above=NULL;
1358	op->below=NULL;
1359		1025
		1026	map->at (x, y).bottom = above; /* goes on above it. */
		1027	}
		1028
		1029	above = 0;
		1030	below = 0;
		1031
1360	if (op->map->in_memory == MAP_SAVING)	1032	if (map->in_memory == MAP_SAVING)
1361	return;	1033	return;
1362		1034
1363	tag = op->count;
1364	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1035	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);
		1036
1365	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1037	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
		1038	{
1366	/* No point updating the players look faces if he is the object	1039	/* No point updating the players look faces if he is the object
1367	* being removed.	1040	* being removed.
1368	*/	1041	*/
1369		1042
1370	if(tmp->type==PLAYER && tmp!=op) {	1043	if (tmp->type == PLAYER && tmp != this)
		1044	{
1371	/* If a container that the player is currently using somehow gets	1045	/* If a container that the player is currently using somehow gets
1372	* removed (most likely destroyed), update the player view	1046	* removed (most likely destroyed), update the player view
1373	* appropriately.	1047	* appropriately.
1374	*/	1048	*/
1375	if (tmp->container==op) {	1049	if (tmp->container == this)
1376	CLEAR_FLAG(op, FLAG_APPLIED);	1050	{
1377	tmp->container=NULL;	1051	CLEAR_FLAG (this, FLAG_APPLIED);
1378	}	1052	tmp->container = 0;
1379	tmp->contr->socket.update_look=1;	1053	}
1380	}	1054
		1055	tmp->contr->ns->floorbox_update ();
		1056	}
		1057
1381	/* See if player moving off should effect something */	1058	/* See if player moving off should effect something */
1382	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1059	if (check_walk_off
		1060	&& ((move_type & tmp->move_off)
1383	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1061	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1062	{
		1063	move_apply (tmp, this, 0);
1384		1064
1385	move_apply(tmp, op, NULL);	1065	if (destroyed ())
1386	if (was_destroyed (op, tag)) {	1066	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 "	1067	}
1388	"leaving object\n", tmp->name, tmp->arch->name);
1389	}
1390	}
1391		1068
1392	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1069	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1393		1070
1394	if(tmp->above == tmp)	1071	if (tmp->above == tmp)
1395	tmp->above = NULL;	1072	tmp->above = 0;
1396	last=tmp;	1073
1397	}	1074	last = tmp;
		1075	}
		1076
1398	/* last == NULL of there are no objects on this space */	1077	/* last == NULL of there are no objects on this space */
1399	if (last==NULL) {	1078	if (!last)
1400	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1079	map->at (x, y).flags_ = P_NEED_UPDATE;
1401	* 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
1403	* be correct anyways.
1404	*/
1405	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1406	update_position(op->map, op->x, op->y);
1407	}
1408	else	1080	else
1409	update_object(last, UP_OBJ_REMOVE);	1081	update_object (last, UP_OBJ_REMOVE);
1410		1082
1411	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1083	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1412	update_all_los(op->map, op->x, op->y);	1084	update_all_los (map, x, y);
1413		1085	}
1414	}	1086	}
1415		1087
1416	/*	1088	/*
1417	* merge_ob(op,top):	1089	* merge_ob(op,top):
1418	*	1090	*
1419	* This function goes through all objects below and including top, and	1091	* This function goes through all objects below and including top, and
1420	* merges op to the first matching object.	1092	* merges op to the first matching object.
1421	* If top is NULL, it is calculated.	1093	* If top is NULL, it is calculated.
1422	* Returns pointer to object if it succeded in the merge, otherwise NULL	1094	* Returns pointer to object if it succeded in the merge, otherwise NULL
1423	*/	1095	*/
1424		1096	object *
1425	object *merge_ob(object *op, object *top) {	1097	merge_ob (object *op, object *top)
		1098	{
1426	if(!op->nrof)	1099	if (!op->nrof)
1427	return 0;	1100	return 0;
		1101
1428	if(top==NULL)	1102	if (top == NULL)
1429	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1103	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1104
1430	for(;top!=NULL;top=top->below) {	1105	for (; top != NULL; top = top->below)
		1106	{
1431	if(top==op)	1107	if (top == op)
1432	continue;	1108	continue;
1433	if (CAN_MERGE(op,top))	1109
1434	{	1110	if (object::can_merge (op, top))
		1111	{
1435	top->nrof+=op->nrof;	1112	top->nrof += op->nrof;
		1113
1436	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1114	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1437	op->weight = 0; /* Don't want any adjustements now */	1115	op->weight = 0; /* Don't want any adjustements now */
1438	remove_ob(op);	1116	op->destroy ();
1439	free_object(op);
1440	return top;	1117	return top;
1441	}	1118	}
1442	}	1119	}
		1120
1443	return NULL;	1121	return 0;
1444	}	1122	}
1445		1123
1446	/*	1124	/*
1447	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1125	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1448	* job preparing multi-part monsters	1126	* job preparing multi-part monsters
1449	*/	1127	*/
		1128	object *
1450	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1129	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1130	{
1451	object* tmp;	1131	object *tmp;
		1132
1452	if (op->head)	1133	if (op->head)
1453	op=op->head;	1134	op = op->head;
		1135
1454	for (tmp=op;tmp;tmp=tmp->more){	1136	for (tmp = op; tmp; tmp = tmp->more)
		1137	{
1455	tmp->x=x+tmp->arch->clone.x;	1138	tmp->x = x + tmp->arch->clone.x;
1456	tmp->y=y+tmp->arch->clone.y;	1139	tmp->y = y + tmp->arch->clone.y;
1457	}	1140	}
		1141
1458	return insert_ob_in_map (op, m, originator, flag);	1142	return insert_ob_in_map (op, m, originator, flag);
1459	}	1143	}
1460		1144
1461	/*	1145	/*
1462	* insert_ob_in_map (op, map, originator, flag):	1146	* insert_ob_in_map (op, map, originator, flag):
1463	* This function inserts the object in the two-way linked list	1147	* This function inserts the object in the two-way linked list
…		…
1477	* new object if 'op' was merged with other object	1161	* new object if 'op' was merged with other object
1478	* NULL if 'op' was destroyed	1162	* NULL if 'op' was destroyed
1479	* just 'op' otherwise	1163	* just 'op' otherwise
1480	*/	1164	*/
1481		1165
		1166	object *
1482	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1167	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1483	{	1168	{
1484	object *tmp, *top, *floor=NULL;	1169	object *tmp, *top, *floor = NULL;
1485	sint16 x,y;	1170	sint16 x, y;
1486		1171
1487	if (QUERY_FLAG (op, FLAG_FREED)) {	1172	if (QUERY_FLAG (op, FLAG_FREED))
		1173	{
1488	LOG (llevError, "Trying to insert freed object!\n");	1174	LOG (llevError, "Trying to insert freed object!\n");
1489	return NULL;	1175	return NULL;
		1176	}
		1177
		1178	if (m == NULL)
1490	}	1179	{
1491	if(m==NULL) {	1180	char *dump = dump_object (op);
1492	dump_object(op);
1493	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1181	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1494	return op;	1182	free (dump);
		1183	return op;
1495	}	1184	}
		1185
1496	if(out_of_map(m,op->x,op->y)) {	1186	if (out_of_map (m, op->x, op->y))
1497	dump_object(op);	1187	{
		1188	char *dump = dump_object (op);
1498	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1189	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1499	#ifdef MANY_CORES	1190	#ifdef MANY_CORES
1500	/* Better to catch this here, as otherwise the next use of this object	1191	/* 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	1192	* is likely to cause a crash. Better to find out where it is getting
1502	* improperly inserted.	1193	* improperly inserted.
1503	*/	1194	*/
1504	abort();	1195	abort ();
1505	#endif	1196	#endif
1506	return op;	1197	free (dump);
		1198	return op;
1507	}	1199	}
		1200
1508	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1201	if (!QUERY_FLAG (op, FLAG_REMOVED))
1509	dump_object(op);	1202	{
		1203	char *dump = dump_object (op);
1510	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1204	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1511	return op;	1205	free (dump);
		1206	return op;
1512	}	1207	}
		1208
1513	if(op->more!=NULL) {	1209	if (op->more != NULL)
		1210	{
1514	/* The part may be on a different map. */	1211	/* The part may be on a different map. */
1515		1212
1516	object *more = op->more;	1213	object *more = op->more;
1517		1214
1518	/* We really need the caller to normalize coordinates - if	1215	/* We really need the caller to normalize coordinates - if
1519	* we set the map, that doesn't work if the location is within	1216	* 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	1217	* a map and this is straddling an edge. So only if coordinate
1521	* is clear wrong do we normalize it.	1218	* is clear wrong do we normalize it.
1522	*/	1219	*/
1523	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1220	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);	1221	more->map = get_map_from_coord (m, &more->x, &more->y);
1528	} else if (!more->map) {	1222	else if (!more->map)
		1223	{
1529	/* For backwards compatibility - when not dealing with tiled maps,	1224	/* For backwards compatibility - when not dealing with tiled maps,
1530	* more->map should always point to the parent.	1225	* more->map should always point to the parent.
1531	*/	1226	*/
1532	more->map = m;	1227	more->map = m;
1533	}	1228	}
1534		1229
1535	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1230	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1231	{
1536	if ( ! op->head)	1232	if (!op->head)
1537	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1233	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1234
1538	return NULL;	1235	return NULL;
1539	}	1236	}
1540	}	1237	}
		1238
1541	CLEAR_FLAG(op,FLAG_REMOVED);	1239	CLEAR_FLAG (op, FLAG_REMOVED);
1542		1240
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	1241	/* 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	1242	* of areas of callers (eg, anything that uses find_free_spot would now
1549	* need extra work	1243	* need extra work
1550	*/	1244	*/
1551	op->map=get_map_from_coord(m, &op->x, &op->y);	1245	op->map = get_map_from_coord (m, &op->x, &op->y);
1552	x = op->x;	1246	x = op->x;
1553	y = op->y;	1247	y = op->y;
1554		1248
1555	/* this has to be done after we translate the coordinates.	1249	/* this has to be done after we translate the coordinates.
1556	*/	1250	*/
1557	if(op->nrof && !(flag & INS_NO_MERGE)) {	1251	if (op->nrof && !(flag & INS_NO_MERGE))
1558	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1252	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1559	if (CAN_MERGE(op,tmp)) {	1253	if (object::can_merge (op, tmp))
1560	op->nrof+=tmp->nrof;	1254	{
1561	remove_ob(tmp);	1255	op->nrof += tmp->nrof;
1562	free_object(tmp);	1256	tmp->destroy ();
1563	}	1257	}
1564	}
1565		1258
1566	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1259	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1567	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1260	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1261
1568	if (!QUERY_FLAG(op, FLAG_ALIVE))	1262	if (!QUERY_FLAG (op, FLAG_ALIVE))
1569	CLEAR_FLAG(op, FLAG_NO_STEAL);	1263	CLEAR_FLAG (op, FLAG_NO_STEAL);
1570		1264
1571	if (flag & INS_BELOW_ORIGINATOR) {	1265	if (flag & INS_BELOW_ORIGINATOR)
		1266	{
1572	if (originator->map != op->map || originator->x != op->x ||	1267	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1573	originator->y != op->y) {	1268	{
1574	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1269	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1575	abort();	1270	abort ();
1576	}	1271	}
		1272
1577	op->above = originator;	1273	op->above = originator;
1578	op->below = originator->below;	1274	op->below = originator->below;
1579	if (op->below) op->below->above = op;	1275
1580	else SET_MAP_OB(op->map, op->x, op->y, op);	1276	if (op->below)
		1277	op->below->above = op;
		1278	else
		1279	op->ms ().bottom = op;
		1280
1581	/* since *below* originator, no need to update top */	1281	/* since *below* originator, no need to update top */
1582	originator->below = op;	1282	originator->below = op;
1583	} else {	1283	}
		1284	else
		1285	{
1584	/* If there are other objects, then */	1286	/* If there are other objects, then */
1585	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1287	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1288	{
1586	object *last=NULL;	1289	object *last = NULL;
1587	/*	1290
		1291	/*
1588	* If there are multiple objects on this space, we do some trickier handling.	1292	* If there are multiple objects on this space, we do some trickier handling.
1589	* We've already dealt with merging if appropriate.	1293	* We've already dealt with merging if appropriate.
1590	* Generally, we want to put the new object on top. But if	1294	* Generally, we want to put the new object on top. But if
1591	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1295	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1592	* floor, we want to insert above that and no further.	1296	* floor, we want to insert above that and no further.
1593	* Also, if there are spell objects on this space, we stop processing	1297	* 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	1298	* 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	1299	* 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	1300	* when lots of spells are cast in one area. Currently, it is presumed
1597	* that flying non pickable objects are spell objects.	1301	* that flying non pickable objects are spell objects.
1598	*/	1302	*/
1599		1303
1600	while (top != NULL) {	1304	while (top != NULL)
1601	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||	1305	{
1602	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;	1306	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1603	if (QUERY_FLAG(top, FLAG_NO_PICK)	1307	floor = top;
1604	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))	1308
1605	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))	1309	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1606	{	1310	{
1607	/* We insert above top, so we want this object below this */	1311	/* We insert above top, so we want this object below this */
1608	top=top->below;	1312	top = top->below;
1609	break;	1313	break;
1610	}	1314	}
1611	last = top;	1315
1612	top = top->above;	1316	last = top;
1613	}	1317	top = top->above;
		1318	}
		1319
1614	/* Don't want top to be NULL, so set it to the last valid object */	1320	/* Don't want top to be NULL, so set it to the last valid object */
1615	top = last;	1321	top = last;
1616		1322
1617	/* We let update_position deal with figuring out what the space	1323	/* We let update_position deal with figuring out what the space
1618	* looks like instead of lots of conditions here.	1324	* looks like instead of lots of conditions here.
1619	* makes things faster, and effectively the same result.	1325	* makes things faster, and effectively the same result.
1620	*/	1326	*/
1621		1327
1622	/* Have object 'fall below' other objects that block view.	1328	/* Have object 'fall below' other objects that block view.
1623	* Unless those objects are exits, type 66	1329	* Unless those objects are exits, type 66
1624	* If INS_ON_TOP is used, don't do this processing	1330	* If INS_ON_TOP is used, don't do this processing
1625	* Need to find the object that in fact blocks view, otherwise	1331	* Need to find the object that in fact blocks view, otherwise
1626	* stacking is a bit odd.	1332	* stacking is a bit odd.
1627	*/	1333	*/
1628	if (!(flag & INS_ON_TOP) &&	1334	if (!(flag & INS_ON_TOP) &&
1629	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1335	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1630	(op->face && !op->face->visibility)) {	1336	{
1631	for (last=top; last != floor; last=last->below)	1337	for (last = top; last != floor; last = last->below)
1632	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1338	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1339	break;
1633	/* Check to see if we found the object that blocks view,	1340	/* Check to see if we found the object that blocks view,
1634	* and make sure we have a below pointer for it so that	1341	* and make sure we have a below pointer for it so that
1635	* we can get inserted below this one, which requires we	1342	* we can get inserted below this one, which requires we
1636	* set top to the object below us.	1343	* set top to the object below us.
1637	*/	1344	*/
1638	if (last && last->below && last != floor) top=last->below;	1345	if (last && last->below && last != floor)
1639	}	1346	top = last->below;
1640	} /* If objects on this space */	1347	}
		1348	} /* If objects on this space */
		1349
1641	if (flag & INS_MAP_LOAD)	1350	if (flag & INS_MAP_LOAD)
1642	top = GET_MAP_TOP(op->map,op->x,op->y);	1351	top = GET_MAP_TOP (op->map, op->x, op->y);
		1352
1643	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1353	if (flag & INS_ABOVE_FLOOR_ONLY)
		1354	top = floor;
1644		1355
1645	/* Top is the object that our object (op) is going to get inserted above.	1356	/* Top is the object that our object (op) is going to get inserted above.
1646	*/	1357	*/
1647		1358
1648	/* First object on this space */	1359	/* First object on this space */
1649	if (!top) {	1360	if (!top)
		1361	{
1650	op->above = GET_MAP_OB(op->map, op->x, op->y);	1362	op->above = GET_MAP_OB (op->map, op->x, op->y);
1651	if (op->above) op->above->below = op;	1363
		1364	if (op->above)
		1365	op->above->below = op;
		1366
1652	op->below = NULL;	1367	op->below = NULL;
1653	SET_MAP_OB(op->map, op->x, op->y, op);	1368	op->ms ().bottom = op;
1654	} else { /* get inserted into the stack above top */	1369	}
		1370	else
		1371	{ /* get inserted into the stack above top */
1655	op->above = top->above;	1372	op->above = top->above;
1656	if (op->above) op->above->below = op;	1373
		1374	if (op->above)
		1375	op->above->below = op;
		1376
1657	op->below = top;	1377	op->below = top;
1658	top->above = op;	1378	top->above = op;
1659	}	1379	}
		1380
1660	if (op->above==NULL)	1381	if (op->above == NULL)
1661	SET_MAP_TOP(op->map,op->x, op->y, op);	1382	op->ms ().top = op;
1662	} /* else not INS_BELOW_ORIGINATOR */	1383	} /* else not INS_BELOW_ORIGINATOR */
1663		1384
1664	if(op->type==PLAYER)	1385	if (op->type == PLAYER)
1665	op->contr->do_los=1;	1386	op->contr->do_los = 1;
1666		1387
1667	/* If we have a floor, we know the player, if any, will be above	1388	/* 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.	1389	* it, so save a few ticks and start from there.
1669	*/	1390	*/
1670	if (!(flag & INS_MAP_LOAD))	1391	if (!(flag & INS_MAP_LOAD))
1671	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1392	if (object *pl = op->ms ().player ())
1672	if (tmp->type == PLAYER)	1393	pl->contr->ns->floorbox_update ();
1673	tmp->contr->socket.update_look=1;
1674	}
1675		1394
1676	/* If this object glows, it may affect lighting conditions that are	1395	/* If this object glows, it may affect lighting conditions that are
1677	* visible to others on this map. But update_all_los is really	1396	* 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	1397	* 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	1398	* on the map will get recalculated. The players could very well
1680	* be far away from this change and not affected in any way -	1399	* be far away from this change and not affected in any way -
1681	* this should get redone to only look for players within range,	1400	* this should get redone to only look for players within range,
1682	* or just updating the P_NEED_UPDATE for spaces within this area	1401	* or just updating the P_NEED_UPDATE for spaces within this area
1683	* of effect may be sufficient.	1402	* of effect may be sufficient.
1684	*/	1403	*/
1685	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1404	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
1686	update_all_los(op->map, op->x, op->y);	1405	update_all_los (op->map, op->x, op->y);
1687		1406
1688
1689	/* updates flags (blocked, alive, no magic, etc) for this map space */	1407	/* updates flags (blocked, alive, no magic, etc) for this map space */
1690	update_object(op,UP_OBJ_INSERT);	1408	update_object (op, UP_OBJ_INSERT);
1691		1409
1692
1693	/* Don't know if moving this to the end will break anything. However,	1410	/* 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.	1411	* we want to have floorbox_update called before calling this.
1695	*	1412	*
1696	* check_move_on() must be after this because code called from	1413	* check_move_on() must be after this because code called from
1697	* check_move_on() depends on correct map flags (so functions like	1414	* check_move_on() depends on correct map flags (so functions like
1698	* blocked() and wall() work properly), and these flags are updated by	1415	* blocked() and wall() work properly), and these flags are updated by
1699	* update_object().	1416	* update_object().
1700	*/	1417	*/
1701		1418
1702	/* if this is not the head or flag has been passed, don't check walk on status */	1419	/* 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) {	1420	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1421	{
1705	if (check_move_on(op, originator))	1422	if (check_move_on (op, originator))
1706	return NULL;	1423	return NULL;
1707		1424
1708	/* If we are a multi part object, lets work our way through the check	1425	/* If we are a multi part object, lets work our way through the check
1709	* walk on's.	1426	* walk on's.
1710	*/	1427	*/
1711	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1428	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1712	if (check_move_on (tmp, originator))	1429	if (check_move_on (tmp, originator))
1713	return NULL;	1430	return NULL;
1714	}	1431	}
		1432
1715	return op;	1433	return op;
1716	}	1434	}
1717		1435
1718	/* this function inserts an object in the map, but if it	1436	/* 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.	1437	* 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.	1438	* op is the object to insert it under: supplies x and the map.
1721	*/	1439	*/
		1440	void
1722	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1441	replace_insert_ob_in_map (const char *arch_string, object *op)
1723	object *tmp;	1442	{
1724	object *tmp1;	1443	object *tmp, *tmp1;
1725		1444
1726	/* first search for itself and remove any old instances */	1445	/* first search for itself and remove any old instances */
1727		1446
1728	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1447	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 */ {	1448	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1730	remove_ob(tmp);	1449	tmp->destroy ();
1731	free_object(tmp);
1732	}
1733	}
1734		1450
1735	tmp1=arch_to_object(find_archetype(arch_string));	1451	tmp1 = arch_to_object (archetype::find (arch_string));
1736		1452
1737		1453	tmp1->x = op->x;
1738	tmp1->x = op->x; tmp1->y = op->y;	1454	tmp1->y = op->y;
1739	insert_ob_in_map(tmp1,op->map,op,0);	1455	insert_ob_in_map (tmp1, op->map, op, 0);
1740	}	1456	}
1741		1457
1742	/*	1458	/*
1743	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1459	* 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	1460	* is returned contains nr objects, and the remaining parts contains
1745	* the rest (or is removed and freed if that number is 0).	1461	* the rest (or is removed and freed if that number is 0).
1746	* On failure, NULL is returned, and the reason put into the	1462	* On failure, NULL is returned, and the reason put into the
1747	* global static errmsg array.	1463	* global static errmsg array.
1748	*/	1464	*/
1749		1465
		1466	object *
1750	object *get_split_ob(object *orig_ob, uint32 nr) {	1467	get_split_ob (object *orig_ob, uint32 nr)
		1468	{
1751	object *newob;	1469	object *newob;
1752	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1470	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1753		1471
1754	if(orig_ob->nrof<nr) {	1472	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	}	1473	{
		1474	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
		1475	return NULL;
		1476	}
		1477
1759	newob = object_create_clone(orig_ob);	1478	newob = object_create_clone (orig_ob);
		1479
1760	if((orig_ob->nrof-=nr)<1) {	1480	if ((orig_ob->nrof -= nr) < 1)
1761	if ( ! is_removed)	1481	orig_ob->destroy (1);
1762	remove_ob(orig_ob);
1763	free_object2(orig_ob, 1);
1764	}
1765	else if ( ! is_removed) {	1482	else if (!is_removed)
		1483	{
1766	if(orig_ob->env!=NULL)	1484	if (orig_ob->env != NULL)
1767	sub_weight (orig_ob->env,orig_ob->weight*nr);	1485	sub_weight (orig_ob->env, orig_ob->weight * nr);
1768	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1486	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1487	{
1769	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1488	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");	1489	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1772	return NULL;	1490	return NULL;
1773	}	1491	}
1774	}	1492	}
		1493
1775	newob->nrof=nr;	1494	newob->nrof = nr;
1776		1495
1777	return newob;	1496	return newob;
1778	}	1497	}
1779		1498
1780	/*	1499	/*
1781	* decrease_ob_nr(object, number) decreases a specified number from	1500	* decrease_ob_nr(object, number) decreases a specified number from
1782	* the amount of an object. If the amount reaches 0, the object	1501	* the amount of an object. If the amount reaches 0, the object
1783	* is subsequently removed and freed.	1502	* is subsequently removed and freed.
1784	*	1503	*
1785	* Return value: 'op' if something is left, NULL if the amount reached 0	1504	* Return value: 'op' if something is left, NULL if the amount reached 0
1786	*/	1505	*/
1787		1506
		1507	object *
1788	object *decrease_ob_nr (object *op, uint32 i)	1508	decrease_ob_nr (object *op, uint32 i)
1789	{	1509	{
1790	object *tmp;	1510	object *tmp;
1791	player *pl;	1511	player *pl;
1792		1512
1793	if (i == 0) /* objects with op->nrof require this check */	1513	if (i == 0) /* objects with op->nrof require this check */
1794	return op;	1514	return op;
1795		1515
1796	if (i > op->nrof)	1516	if (i > op->nrof)
1797	i = op->nrof;	1517	i = op->nrof;
1798		1518
1799	if (QUERY_FLAG (op, FLAG_REMOVED))	1519	if (QUERY_FLAG (op, FLAG_REMOVED))
		1520	op->nrof -= i;
		1521	else if (op->env)
		1522	{
		1523	/* is this object in the players inventory, or sub container
		1524	* therein?
		1525	*/
		1526	tmp = op->in_player ();
		1527	/* nope. Is this a container the player has opened?
		1528	* If so, set tmp to that player.
		1529	* IMO, searching through all the players will mostly
		1530	* likely be quicker than following op->env to the map,
		1531	* and then searching the map for a player.
		1532	*/
		1533	if (!tmp)
		1534	{
		1535	for (pl = first_player; pl; pl = pl->next)
		1536	if (pl->ob->container == op->env)
		1537	{
		1538	tmp = pl->ob;
		1539	break;
		1540	}
		1541	}
		1542
		1543	if (i < op->nrof)
		1544	{
		1545	sub_weight (op->env, op->weight * i);
		1546	op->nrof -= i;
		1547	if (tmp)
		1548	esrv_send_item (tmp, op);
		1549	}
		1550	else
		1551	{
		1552	op->remove ();
		1553	op->nrof = 0;
		1554	if (tmp)
		1555	esrv_del_item (tmp->contr, op->count);
		1556	}
1800	{	1557	}
		1558	else
		1559	{
		1560	object *above = op->above;
		1561
		1562	if (i < op->nrof)
1801	op->nrof -= i;	1563	op->nrof -= i;
1802	}	1564	else
1803	else if (op->env != NULL)	1565	{
1804	{	1566	op->remove ();
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;	1567	op->nrof = 0;
		1568	}
		1569
		1570	/* Since we just removed op, op->above is null */
		1571	for (tmp = above; tmp; tmp = tmp->above)
		1572	if (tmp->type == PLAYER)
		1573	{
1825	if (tmp) {	1574	if (op->nrof)
1826	esrv_send_item(tmp, op);	1575	esrv_send_item (tmp, op);
1827	}	1576	else
1828	} else {
1829	remove_ob (op);
1830	op->nrof = 0;
1831	if (tmp) {
1832	esrv_del_item(tmp->contr, op->count);	1577	esrv_del_item (tmp->contr, op->count);
1833	}	1578	}
1834	}
1835	}
1836	else
1837	{	1579	}
1838	object *above = op->above;
1839		1580
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 */
1847	for (tmp = above; tmp != NULL; tmp = tmp->above)
1848	if (tmp->type == PLAYER) {
1849	if (op->nrof)
1850	esrv_send_item(tmp, op);
1851	else
1852	esrv_del_item(tmp->contr, op->count);
1853	}
1854	}
1855
1856	if (op->nrof) {	1581	if (op->nrof)
1857	return op;	1582	return op;
1858	} else {	1583	else
1859	free_object (op);	1584	{
		1585	op->destroy ();
1860	return NULL;	1586	return 0;
1861	}	1587	}
1862	}	1588	}
1863		1589
1864	/*	1590	/*
1865	* add_weight(object, weight) adds the specified weight to an object,	1591	* add_weight(object, weight) adds the specified weight to an object,
1866	* and also updates how much the environment(s) is/are carrying.	1592	* and also updates how much the environment(s) is/are carrying.
1867	*/	1593	*/
1868		1594
		1595	void
1869	void add_weight (object *op, signed long weight) {	1596	add_weight (object *op, signed long weight)
		1597	{
1870	while (op!=NULL) {	1598	while (op != NULL)
		1599	{
1871	if (op->type == CONTAINER) {	1600	if (op->type == CONTAINER)
1872	weight=(signed long)(weight*(100-op->stats.Str)/100);	1601	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1873	}	1602
1874	op->carrying+=weight;	1603	op->carrying += weight;
1875	op=op->env;	1604	op = op->env;
1876	}	1605	}
1877	}	1606	}
1878		1607
		1608	object *
		1609	insert_ob_in_ob (object *op, object *where)
		1610	{
		1611	if (!where)
		1612	{
		1613	char *dump = dump_object (op);
		1614	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1615	free (dump);
		1616	return op;
		1617	}
		1618
		1619	if (where->head)
		1620	{
		1621	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1622	where = where->head;
		1623	}
		1624
		1625	return where->insert (op);
		1626	}
		1627
1879	/*	1628	/*
1880	* insert_ob_in_ob(op,environment):	1629	* env->insert (op)
1881	* This function inserts the object op in the linked list	1630	* This function inserts the object op in the linked list
1882	* inside the object environment.	1631	* inside the object environment.
1883	*	1632	*
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	1633	* The function returns now pointer to inserted item, and return value can
1890	* be != op, if items are merged. -Tero	1634	* be != op, if items are merged. -Tero
1891	*/	1635	*/
1892		1636
1893	object *insert_ob_in_ob(object *op,object *where) {	1637	object *
		1638	object::insert (object *op)
		1639	{
1894	object *tmp, *otmp;	1640	object *tmp, *otmp;
1895		1641
1896	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1642	if (!QUERY_FLAG (op, FLAG_REMOVED))
1897	dump_object(op);	1643	op->remove ();
1898	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1644
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) {	1645	if (op->more)
		1646	{
1912	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1647	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1913	op->name, op->count);
1914	return op;	1648	return op;
1915	}	1649	}
		1650
1916	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1651	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1917	CLEAR_FLAG(op, FLAG_REMOVED);	1652	CLEAR_FLAG (op, FLAG_REMOVED);
1918	if(op->nrof) {	1653	if (op->nrof)
		1654	{
1919	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1655	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1920	if ( CAN_MERGE(tmp,op) ) {	1656	if (object::can_merge (tmp, op))
		1657	{
1921	/* return the original object and remove inserted object	1658	/* return the original object and remove inserted object
1922	(client needs the original object) */	1659	(client needs the original object) */
1923	tmp->nrof += op->nrof;	1660	tmp->nrof += op->nrof;
1924	/* Weight handling gets pretty funky. Since we are adding to	1661	/* Weight handling gets pretty funky. Since we are adding to
1925	* tmp->nrof, we need to increase the weight.	1662	* tmp->nrof, we need to increase the weight.
1926	*/	1663	*/
1927	add_weight (where, op->weight*op->nrof);	1664	add_weight (this, op->weight * op->nrof);
1928	SET_FLAG(op, FLAG_REMOVED);	1665	SET_FLAG (op, FLAG_REMOVED);
1929	free_object(op); /* free the inserted object */	1666	op->destroy (); /* free the inserted object */
1930	op = tmp;	1667	op = tmp;
1931	remove_ob (op); /* and fix old object's links */	1668	op->remove (); /* and fix old object's links */
1932	CLEAR_FLAG(op, FLAG_REMOVED);	1669	CLEAR_FLAG (op, FLAG_REMOVED);
1933	break;	1670	break;
1934	}	1671	}
1935		1672
1936	/* I assume combined objects have no inventory	1673	/* I assume combined objects have no inventory
1937	* We add the weight - this object could have just been removed	1674	* We add the weight - this object could have just been removed
1938	* (if it was possible to merge). calling remove_ob will subtract	1675	* (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	1676	* the weight, so we need to add it in again, since we actually do
1940	* the linking below	1677	* the linking below
1941	*/	1678	*/
1942	add_weight (where, op->weight*op->nrof);	1679	add_weight (this, op->weight * op->nrof);
		1680	}
1943	} else	1681	else
1944	add_weight (where, (op->weight+op->carrying));	1682	add_weight (this, (op->weight + op->carrying));
1945		1683
1946	otmp=is_player_inv(where);	1684	otmp = this->in_player ();
1947	if (otmp&&otmp->contr!=NULL) {	1685	if (otmp && otmp->contr)
1948	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1686	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1949	fix_player(otmp);	1687	otmp->update_stats ();
1950	}
1951		1688
1952	op->map=NULL;	1689	op->map = 0;
1953	op->env=where;	1690	op->env = this;
1954	op->above=NULL;	1691	op->above = 0;
1955	op->below=NULL;	1692	op->below = 0;
1956	op->x=0,op->y=0;	1693	op->x = 0, op->y = 0;
1957	op->ox=0,op->oy=0;
1958		1694
1959	/* reset the light list and los of the players on the map */	1695	/* reset the light list and los of the players on the map */
1960	if((op->glow_radius!=0)&&where->map)	1696	if ((op->glow_radius != 0) && map)
1961	{	1697	{
1962	#ifdef DEBUG_LIGHTS	1698	#ifdef DEBUG_LIGHTS
1963	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1699	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1964	op->name);
1965	#endif /* DEBUG_LIGHTS */	1700	#endif /* DEBUG_LIGHTS */
1966	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1701	if (MAP_DARKNESS (map))
		1702	update_all_los (map, x, y);
1967	}	1703	}
1968		1704
1969	/* Client has no idea of ordering so lets not bother ordering it here.	1705	/* Client has no idea of ordering so lets not bother ordering it here.
1970	* It sure simplifies this function...	1706	* It sure simplifies this function...
1971	*/	1707	*/
1972	if (where->inv==NULL)	1708	if (!inv)
1973	where->inv=op;	1709	inv = op;
1974	else {	1710	else
		1711	{
1975	op->below = where->inv;	1712	op->below = inv;
1976	op->below->above = op;	1713	op->below->above = op;
1977	where->inv = op;	1714	inv = op;
1978	}	1715	}
		1716
1979	return op;	1717	return op;
1980	}	1718	}
1981		1719
1982	/*	1720	/*
1983	* Checks if any objects has a move_type that matches objects	1721	* 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	1736	* 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	1737	* object being inserted. insert_ob_in_map may not put new objects
2000	* on top.	1738	* on top.
2001	*/	1739	*/
2002		1740
		1741	int
2003	int check_move_on (object *op, object *originator)	1742	check_move_on (object *op, object *originator)
2004	{	1743	{
2005	object *tmp;	1744	object *tmp;
2006	tag_t tag;
2007	mapstruct *m=op->map;	1745	maptile *m = op->map;
2008	int x=op->x, y=op->y;	1746	int x = op->x, y = op->y;
		1747
2009	MoveType move_on, move_slow, move_block;	1748	MoveType move_on, move_slow, move_block;
2010		1749
2011	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1750	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;	1751	return 0;
		1752
		1753	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1754	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		1755	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		1756
		1757	/* if nothing on this space will slow op down or be applied,
		1758	* no need to do checking below. have to make sure move_type
		1759	* is set, as lots of objects don't have it set - we treat that
		1760	* as walking.
		1761	*/
		1762	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		1763	return 0;
		1764
		1765	/* This is basically inverse logic of that below - basically,
		1766	* if the object can avoid the move on or slow move, they do so,
		1767	* but can't do it if the alternate movement they are using is
		1768	* blocked. Logic on this seems confusing, but does seem correct.
		1769	*/
		1770	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		1771	return 0;
		1772
		1773	/* The objects have to be checked from top to bottom.
		1774	* Hence, we first go to the top:
		1775	*/
		1776
		1777	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
		1778	{
		1779	/* Trim the search when we find the first other spell effect
		1780	* this helps performance so that if a space has 50 spell objects,
		1781	* we don't need to check all of them.
		1782	*/
		1783	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1784	break;
		1785	}
		1786
		1787	for (; tmp; tmp = tmp->below)
		1788	{
		1789	if (tmp == op)
		1790	continue; /* Can't apply yourself */
		1791
		1792	/* Check to see if one of the movement types should be slowed down.
		1793	* Second check makes sure that the movement types not being slowed
		1794	* (~slow_move) is not blocked on this space - just because the
		1795	* space doesn't slow down swimming (for example), if you can't actually
		1796	* swim on that space, can't use it to avoid the penalty.
		1797	*/
		1798	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1799	{
		1800	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		1801	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1802	{
		1803
		1804	float
		1805	diff = tmp->move_slow_penalty * FABS (op->speed);
		1806
		1807	if (op->type == PLAYER)
		1808	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		1809	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		1810	diff /= 4.0;
		1811
		1812	op->speed_left -= diff;
		1813	}
		1814	}
		1815
		1816	/* Basically same logic as above, except now for actual apply. */
		1817	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		1818	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		1819	{
		1820	move_apply (tmp, op, originator);
		1821
		1822	if (op->destroyed ())
		1823	return 1;
		1824
		1825	/* what the person/creature stepped onto has moved the object
		1826	* someplace new. Don't process any further - if we did,
		1827	* have a feeling strange problems would result.
		1828	*/
		1829	if (op->map != m || op->x != x || op->y != y)
		1830	return 0;
		1831	}
		1832	}
		1833
		1834	return 0;
2092	}	1835	}
2093		1836
2094	/*	1837	/*
2095	* present_arch(arch, map, x, y) searches for any objects with	1838	* present_arch(arch, map, x, y) searches for any objects with
2096	* a matching archetype at the given map and coordinates.	1839	* a matching archetype at the given map and coordinates.
2097	* The first matching object is returned, or NULL if none.	1840	* The first matching object is returned, or NULL if none.
2098	*/	1841	*/
2099		1842
		1843	object *
2100	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1844	present_arch (const archetype *at, maptile *m, int x, int y)
		1845	{
2101	object *tmp;	1846	object *
		1847	tmp;
		1848
2102	if(m==NULL || out_of_map(m,x,y)) {	1849	if (m == NULL || out_of_map (m, x, y))
		1850	{
2103	LOG(llevError,"Present_arch called outside map.\n");	1851	LOG (llevError, "Present_arch called outside map.\n");
2104	return NULL;	1852	return NULL;
2105	}	1853	}
2106	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1854	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2107	if(tmp->arch == at)	1855	if (tmp->arch == at)
2108	return tmp;	1856	return tmp;
2109	return NULL;	1857	return NULL;
2110	}	1858	}
2111		1859
2112	/*	1860	/*
2113	* present(type, map, x, y) searches for any objects with	1861	* present(type, map, x, y) searches for any objects with
2114	* a matching type variable at the given map and coordinates.	1862	* a matching type variable at the given map and coordinates.
2115	* The first matching object is returned, or NULL if none.	1863	* The first matching object is returned, or NULL if none.
2116	*/	1864	*/
2117		1865
		1866	object *
2118	object *present(unsigned char type,mapstruct *m, int x,int y) {	1867	present (unsigned char type, maptile *m, int x, int y)
		1868	{
2119	object *tmp;	1869	object *
		1870	tmp;
		1871
2120	if(out_of_map(m,x,y)) {	1872	if (out_of_map (m, x, y))
		1873	{
2121	LOG(llevError,"Present called outside map.\n");	1874	LOG (llevError, "Present called outside map.\n");
2122	return NULL;	1875	return NULL;
2123	}	1876	}
2124	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1877	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2125	if(tmp->type==type)	1878	if (tmp->type == type)
2126	return tmp;	1879	return tmp;
2127	return NULL;	1880	return NULL;
2128	}	1881	}
2129		1882
2130	/*	1883	/*
2131	* present_in_ob(type, object) searches for any objects with	1884	* present_in_ob(type, object) searches for any objects with
2132	* a matching type variable in the inventory of the given object.	1885	* a matching type variable in the inventory of the given object.
2133	* The first matching object is returned, or NULL if none.	1886	* The first matching object is returned, or NULL if none.
2134	*/	1887	*/
2135		1888
		1889	object *
2136	object *present_in_ob(unsigned char type, const object *op) {	1890	present_in_ob (unsigned char type, const object *op)
		1891	{
2137	object *tmp;	1892	object *
		1893	tmp;
		1894
2138	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1895	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2139	if(tmp->type==type)	1896	if (tmp->type == type)
2140	return tmp;	1897	return tmp;
2141	return NULL;	1898	return NULL;
2142	}	1899	}
2143		1900
2144	/*	1901	/*
…		…
2154	* the object name, not the archetype name. this is so that the	1911	* 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	1912	* spell code can use one object type (force), but change it's name
2156	* to be unique.	1913	* to be unique.
2157	*/	1914	*/
2158		1915
		1916	object *
2159	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1917	present_in_ob_by_name (int type, const char *str, const object *op)
		1918	{
2160	object *tmp;	1919	object *
		1920	tmp;
2161		1921
2162	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1922	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1923	{
2163	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1924	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2164	return tmp;	1925	return tmp;
2165	}	1926	}
2166	return NULL;	1927	return NULL;
2167	}	1928	}
2168		1929
2169	/*	1930	/*
2170	* present_arch_in_ob(archetype, object) searches for any objects with	1931	* present_arch_in_ob(archetype, object) searches for any objects with
2171	* a matching archetype in the inventory of the given object.	1932	* a matching archetype in the inventory of the given object.
2172	* The first matching object is returned, or NULL if none.	1933	* The first matching object is returned, or NULL if none.
2173	*/	1934	*/
2174		1935
		1936	object *
2175	object *present_arch_in_ob(const archetype *at, const object *op) {	1937	present_arch_in_ob (const archetype *at, const object *op)
		1938	{
2176	object *tmp;	1939	object *
		1940	tmp;
		1941
2177	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1942	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2178	if( tmp->arch == at)	1943	if (tmp->arch == at)
2179	return tmp;	1944	return tmp;
2180	return NULL;	1945	return NULL;
2181	}	1946	}
2182		1947
2183	/*	1948	/*
2184	* activate recursively a flag on an object inventory	1949	* activate recursively a flag on an object inventory
2185	*/	1950	*/
		1951	void
2186	void flag_inv(object*op, int flag){	1952	flag_inv (object *op, int flag)
		1953	{
2187	object *tmp;	1954	object *
		1955	tmp;
		1956
2188	if(op->inv)	1957	if (op->inv)
2189	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1958	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1959	{
2190	SET_FLAG(tmp, flag);	1960	SET_FLAG (tmp, flag);
2191	flag_inv(tmp,flag);	1961	flag_inv (tmp, flag);
2192	}	1962	}
2193	}/*	1963	} /*
2194	* desactivate recursively a flag on an object inventory	1964	* desactivate recursively a flag on an object inventory
2195	*/	1965	*/
		1966	void
2196	void unflag_inv(object*op, int flag){	1967	unflag_inv (object *op, int flag)
		1968	{
2197	object *tmp;	1969	object *
		1970	tmp;
		1971
2198	if(op->inv)	1972	if (op->inv)
2199	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1973	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1974	{
2200	CLEAR_FLAG(tmp, flag);	1975	CLEAR_FLAG (tmp, flag);
2201	unflag_inv(tmp,flag);	1976	unflag_inv (tmp, flag);
2202	}	1977	}
2203	}	1978	}
2204		1979
2205	/*	1980	/*
2206	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1981	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2207	* all it's inventory (recursively).	1982	* all it's inventory (recursively).
2208	* If checksums are used, a player will get set_cheat called for	1983	* 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.	1984	* him/her-self and all object carried by a call to this function.
2210	*/	1985	*/
2211		1986
		1987	void
2212	void set_cheat(object *op) {	1988	set_cheat (object *op)
		1989	{
2213	SET_FLAG(op, FLAG_WAS_WIZ);	1990	SET_FLAG (op, FLAG_WAS_WIZ);
2214	flag_inv(op, FLAG_WAS_WIZ);	1991	flag_inv (op, FLAG_WAS_WIZ);
2215	}	1992	}
2216		1993
2217	/*	1994	/*
2218	* find_free_spot(object, map, x, y, start, stop) will search for	1995	* 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	1996	* 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	2011	* 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	2012	* the archetype because that isn't correct if the monster has been
2236	* customized, changed states, etc.	2013	* customized, changed states, etc.
2237	*/	2014	*/
2238		2015
		2016	int
2239	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2017	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2018	{
		2019	int
		2020	i,
2240	int i,index=0, flag;	2021	index = 0, flag;
		2022	static int
2241	static int altern[SIZEOFFREE];	2023	altern[SIZEOFFREE];
2242		2024
2243	for(i=start;i<stop;i++) {	2025	for (i = start; i < stop; i++)
		2026	{
2244	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2027	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2245	if(!flag)	2028	if (!flag)
2246	altern[index++]=i;	2029	altern[index++] = i;
2247		2030
2248	/* Basically, if we find a wall on a space, we cut down the search size.	2031	/* 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.	2032	* 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 -	2033	* 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	2034	* 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	2035	* spaces in all the other directions, this will reduce the search space
2253	* to only the spaces immediately surrounding the target area, and	2036	* to only the spaces immediately surrounding the target area, and
2254	* won't look 2 spaces south of the target space.	2037	* won't look 2 spaces south of the target space.
2255	*/	2038	*/
2256	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2039	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2257	stop=maxfree[i];	2040	stop = maxfree[i];
2258	}	2041	}
2259	if(!index) return -1;	2042
		2043	if (!index)
		2044	return -1;
		2045
2260	return altern[RANDOM()%index];	2046	return altern[RANDOM () % index];
2261	}	2047	}
2262		2048
2263	/*	2049	/*
2264	* find_first_free_spot(archetype, mapstruct, x, y) works like	2050	* find_first_free_spot(archetype, maptile, x, y) works like
2265	* find_free_spot(), but it will search max number of squares.	2051	* find_free_spot(), but it will search max number of squares.
2266	* But it will return the first available spot, not a random choice.	2052	* 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.	2053	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2268	*/	2054	*/
2269		2055
		2056	int
2270	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2057	find_first_free_spot (const object *ob, maptile *m, int x, int y)
		2058	{
		2059	int
2271	int i;	2060	i;
		2061
2272	for(i=0;i<SIZEOFFREE;i++) {	2062	for (i = 0; i < SIZEOFFREE; i++)
		2063	{
2273	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2064	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2274	return i;	2065	return i;
2275	}	2066	}
2276	return -1;	2067	return -1;
2277	}	2068	}
2278		2069
2279	/*	2070	/*
2280	* The function permute(arr, begin, end) randomly reorders the array	2071	* The function permute(arr, begin, end) randomly reorders the array
2281	* arr[begin..end-1].	2072	* arr[begin..end-1].
2282	*/	2073	*/
		2074	static void
2283	static void permute(int *arr, int begin, int end)	2075	permute (int *arr, int begin, int end)
2284	{	2076	{
2285	int i, j, tmp, len;	2077	int
		2078	i,
		2079	j,
		2080	tmp,
		2081	len;
2286		2082
2287	len = end-begin;	2083	len = end - begin;
2288	for(i = begin; i < end; i++)	2084	for (i = begin; i < end; i++)
2289	{	2085	{
2290	j = begin+RANDOM()%len;	2086	j = begin + RANDOM () % len;
2291		2087
2292	tmp = arr[i];	2088	tmp = arr[i];
2293	arr[i] = arr[j];	2089	arr[i] = arr[j];
2294	arr[j] = tmp;	2090	arr[j] = tmp;
2295	}	2091	}
2296	}	2092	}
2297		2093
2298	/* new function to make monster searching more efficient, and effective!	2094	/* new function to make monster searching more efficient, and effective!
2299	* This basically returns a randomized array (in the passed pointer) of	2095	* 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	2096	* 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	2097	* 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	2098	* 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.	2099	* the 3x3 area will be searched, just not in a predictable order.
2304	*/	2100	*/
		2101	void
2305	void get_search_arr(int *search_arr)	2102	get_search_arr (int *search_arr)
2306	{	2103	{
		2104	int
2307	int i;	2105	i;
2308		2106
2309	for(i = 0; i < SIZEOFFREE; i++)	2107	for (i = 0; i < SIZEOFFREE; i++)
2310	{	2108	{
2311	search_arr[i] = i;	2109	search_arr[i] = i;
2312	}	2110	}
2313		2111
2314	permute(search_arr, 1, SIZEOFFREE1+1);	2112	permute (search_arr, 1, SIZEOFFREE1 + 1);
2315	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2113	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2316	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2114	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2317	}	2115	}
2318		2116
2319	/*	2117	/*
2320	* find_dir(map, x, y, exclude) will search some close squares in the	2118	* find_dir(map, x, y, exclude) will search some close squares in the
2321	* given map at the given coordinates for live objects.	2119	* given map at the given coordinates for live objects.
…		…
2327	* is actually want is going to try and move there. We need this info	2125	* 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	2126	* because we have to know what movement the thing looking to move
2329	* there is capable of.	2127	* there is capable of.
2330	*/	2128	*/
2331		2129
		2130	int
2332	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2131	find_dir (maptile *m, int x, int y, object *exclude)
		2132	{
		2133	int
		2134	i,
2333	int i,max=SIZEOFFREE, mflags;	2135	max = SIZEOFFREE, mflags;
		2136
2334	sint16 nx, ny;	2137	sint16 nx, ny;
2335	object *tmp;	2138	object *
2336	mapstruct *mp;	2139	tmp;
		2140	maptile *
		2141	mp;
		2142
2337	MoveType blocked, move_type;	2143	MoveType blocked, move_type;
2338		2144
2339	if (exclude && exclude->head) {	2145	if (exclude && exclude->head)
		2146	{
2340	exclude = exclude->head;	2147	exclude = exclude->head;
2341	move_type = exclude->move_type;	2148	move_type = exclude->move_type;
2342	} else {	2149	}
		2150	else
		2151	{
2343	/* If we don't have anything, presume it can use all movement types. */	2152	/* If we don't have anything, presume it can use all movement types. */
2344	move_type=MOVE_ALL;	2153	move_type = MOVE_ALL;
		2154	}
		2155
		2156	for (i = 1; i < max; i++)
2345	}	2157	{
2346		2158	mp = m;
2347	for(i=1;i<max;i++) {
2348	mp = m;
2349	nx = x + freearr_x[i];	2159	nx = x + freearr_x[i];
2350	ny = y + freearr_y[i];	2160	ny = y + freearr_y[i];
2351		2161
2352	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2162	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2163
2353	if (mflags & P_OUT_OF_MAP) {	2164	if (mflags & P_OUT_OF_MAP)
2354	max = maxfree[i];	2165	max = maxfree[i];
2355	} else {	2166	else
		2167	{
2356	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2168	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
2357		2169
2358	if ((move_type & blocked) == move_type) {	2170	if ((move_type & blocked) == move_type)
2359	max=maxfree[i];	2171	max = maxfree[i];
2360	} else if (mflags & P_IS_ALIVE) {	2172	else if (mflags & P_IS_ALIVE)
		2173	{
2361	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2174	for (tmp = GET_MAP_OB (mp, nx, ny); tmp; tmp = tmp->above)
2362	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2175	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2363	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2176	break;
2364	break;	2177
2365	}	2178	if (tmp)
2366	}
2367	if(tmp) {
2368	return freedir[i];	2179	return freedir[i];
2369	}	2180	}
		2181	}
2370	}	2182	}
2371	}	2183
2372	}
2373	return 0;	2184	return 0;
2374	}	2185	}
2375		2186
2376	/*	2187	/*
2377	* distance(object 1, object 2) will return the square of the	2188	* distance(object 1, object 2) will return the square of the
2378	* distance between the two given objects.	2189	* distance between the two given objects.
2379	*/	2190	*/
2380		2191
		2192	int
2381	int distance(const object *ob1, const object *ob2) {	2193	distance (const object *ob1, const object *ob2)
		2194	{
2382	int i;	2195	int i;
2383	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2196
2384	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2197	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2385	return i;	2198	return i;
2386	}	2199	}
2387		2200
2388	/*	2201	/*
2389	* find_dir_2(delta-x,delta-y) will return a direction in which	2202	* 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	2203	* an object which has subtracted the x and y coordinates of another
2391	* object, needs to travel toward it.	2204	* object, needs to travel toward it.
2392	*/	2205	*/
2393		2206
		2207	int
2394	int find_dir_2(int x, int y) {	2208	find_dir_2 (int x, int y)
		2209	{
2395	int q;	2210	int q;
2396		2211
2397	if(y)	2212	if (y)
2398	q=x*100/y;	2213	q = x * 100 / y;
2399	else if (x)	2214	else if (x)
2400	q= -300*x;	2215	q = -300 * x;
2401	else	2216	else
2402	return 0;	2217	return 0;
2403		2218
2404	if(y>0) {	2219	if (y > 0)
		2220	{
2405	if(q < -242)	2221	if (q < -242)
2406	return 3 ;	2222	return 3;
2407	if (q < -41)	2223	if (q < -41)
2408	return 2 ;	2224	return 2;
2409	if (q < 41)	2225	if (q < 41)
2410	return 1 ;	2226	return 1;
2411	if (q < 242)	2227	if (q < 242)
2412	return 8 ;	2228	return 8;
2413	return 7 ;	2229	return 7;
2414	}	2230	}
2415		2231
2416	if (q < -242)	2232	if (q < -242)
2417	return 7 ;	2233	return 7;
2418	if (q < -41)	2234	if (q < -41)
2419	return 6 ;	2235	return 6;
2420	if (q < 41)	2236	if (q < 41)
2421	return 5 ;	2237	return 5;
2422	if (q < 242)	2238	if (q < 242)
2423	return 4 ;	2239	return 4;
2424		2240
2425	return 3 ;	2241	return 3;
2426	}	2242	}
2427		2243
2428	/*	2244	/*
2429	* absdir(int): Returns a number between 1 and 8, which represent	2245	* absdir(int): Returns a number between 1 and 8, which represent
2430	* the "absolute" direction of a number (it actually takes care of	2246	* the "absolute" direction of a number (it actually takes care of
2431	* "overflow" in previous calculations of a direction).	2247	* "overflow" in previous calculations of a direction).
2432	*/	2248	*/
2433		2249
		2250	int
2434	int absdir(int d) {	2251	absdir (int d)
2435	while(d<1) d+=8;	2252	{
2436	while(d>8) d-=8;	2253	while (d < 1)
		2254	d += 8;
		2255	while (d > 8)
		2256	d -= 8;
2437	return d;	2257	return d;
2438	}	2258	}
2439		2259
2440	/*	2260	/*
2441	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2261	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2442	* between two directions (which are expected to be absolute (see absdir())	2262	* between two directions (which are expected to be absolute (see absdir())
2443	*/	2263	*/
2444		2264
		2265	int
2445	int dirdiff(int dir1, int dir2) {	2266	dirdiff (int dir1, int dir2)
		2267	{
2446	int d;	2268	int
		2269	d;
		2270
2447	d = abs(dir1 - dir2);	2271	d = abs (dir1 - dir2);
2448	if(d>4)	2272	if (d > 4)
2449	d = 8 - d;	2273	d = 8 - d;
2450	return d;	2274	return d;
2451	}	2275	}
2452		2276
2453	/* peterm:	2277	/* peterm:
…		…
2458	* direction 4, 14, or 16 to get back to where we are.	2282	* 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	2283	* Moved from spell_util.c to object.c with the other related direction
2460	* functions.	2284	* functions.
2461	*/	2285	*/
2462		2286
		2287	int
2463	int reduction_dir[SIZEOFFREE][3] = {	2288	reduction_dir[SIZEOFFREE][3] = {
2464	{0,0,0}, /* 0 */	2289	{0, 0, 0}, /* 0 */
2465	{0,0,0}, /* 1 */	2290	{0, 0, 0}, /* 1 */
2466	{0,0,0}, /* 2 */	2291	{0, 0, 0}, /* 2 */
2467	{0,0,0}, /* 3 */	2292	{0, 0, 0}, /* 3 */
2468	{0,0,0}, /* 4 */	2293	{0, 0, 0}, /* 4 */
2469	{0,0,0}, /* 5 */	2294	{0, 0, 0}, /* 5 */
2470	{0,0,0}, /* 6 */	2295	{0, 0, 0}, /* 6 */
2471	{0,0,0}, /* 7 */	2296	{0, 0, 0}, /* 7 */
2472	{0,0,0}, /* 8 */	2297	{0, 0, 0}, /* 8 */
2473	{8,1,2}, /* 9 */	2298	{8, 1, 2}, /* 9 */
2474	{1,2,-1}, /* 10 */	2299	{1, 2, -1}, /* 10 */
2475	{2,10,12}, /* 11 */	2300	{2, 10, 12}, /* 11 */
2476	{2,3,-1}, /* 12 */	2301	{2, 3, -1}, /* 12 */
2477	{2,3,4}, /* 13 */	2302	{2, 3, 4}, /* 13 */
2478	{3,4,-1}, /* 14 */	2303	{3, 4, -1}, /* 14 */
2479	{4,14,16}, /* 15 */	2304	{4, 14, 16}, /* 15 */
2480	{5,4,-1}, /* 16 */	2305	{5, 4, -1}, /* 16 */
2481	{4,5,6}, /* 17 */	2306	{4, 5, 6}, /* 17 */
2482	{6,5,-1}, /* 18 */	2307	{6, 5, -1}, /* 18 */
2483	{6,20,18}, /* 19 */	2308	{6, 20, 18}, /* 19 */
2484	{7,6,-1}, /* 20 */	2309	{7, 6, -1}, /* 20 */
2485	{6,7,8}, /* 21 */	2310	{6, 7, 8}, /* 21 */
2486	{7,8,-1}, /* 22 */	2311	{7, 8, -1}, /* 22 */
2487	{8,22,24}, /* 23 */	2312	{8, 22, 24}, /* 23 */
2488	{8,1,-1}, /* 24 */	2313	{8, 1, -1}, /* 24 */
2489	{24,9,10}, /* 25 */	2314	{24, 9, 10}, /* 25 */
2490	{9,10,-1}, /* 26 */	2315	{9, 10, -1}, /* 26 */
2491	{10,11,-1}, /* 27 */	2316	{10, 11, -1}, /* 27 */
2492	{27,11,29}, /* 28 */	2317	{27, 11, 29}, /* 28 */
2493	{11,12,-1}, /* 29 */	2318	{11, 12, -1}, /* 29 */
2494	{12,13,-1}, /* 30 */	2319	{12, 13, -1}, /* 30 */
2495	{12,13,14}, /* 31 */	2320	{12, 13, 14}, /* 31 */
2496	{13,14,-1}, /* 32 */	2321	{13, 14, -1}, /* 32 */
2497	{14,15,-1}, /* 33 */	2322	{14, 15, -1}, /* 33 */
2498	{33,15,35}, /* 34 */	2323	{33, 15, 35}, /* 34 */
2499	{16,15,-1}, /* 35 */	2324	{16, 15, -1}, /* 35 */
2500	{17,16,-1}, /* 36 */	2325	{17, 16, -1}, /* 36 */
2501	{18,17,16}, /* 37 */	2326	{18, 17, 16}, /* 37 */
2502	{18,17,-1}, /* 38 */	2327	{18, 17, -1}, /* 38 */
2503	{18,19,-1}, /* 39 */	2328	{18, 19, -1}, /* 39 */
2504	{41,19,39}, /* 40 */	2329	{41, 19, 39}, /* 40 */
2505	{19,20,-1}, /* 41 */	2330	{19, 20, -1}, /* 41 */
2506	{20,21,-1}, /* 42 */	2331	{20, 21, -1}, /* 42 */
2507	{20,21,22}, /* 43 */	2332	{20, 21, 22}, /* 43 */
2508	{21,22,-1}, /* 44 */	2333	{21, 22, -1}, /* 44 */
2509	{23,22,-1}, /* 45 */	2334	{23, 22, -1}, /* 45 */
2510	{45,47,23}, /* 46 */	2335	{45, 47, 23}, /* 46 */
2511	{23,24,-1}, /* 47 */	2336	{23, 24, -1}, /* 47 */
2512	{24,9,-1}}; /* 48 */	2337	{24, 9, -1}
		2338	}; /* 48 */
2513		2339
2514	/* Recursive routine to step back and see if we can	2340	/* Recursive routine to step back and see if we can
2515	* find a path to that monster that we found. If not,	2341	* find a path to that monster that we found. If not,
2516	* we don't bother going toward it. Returns 1 if we	2342	* we don't bother going toward it. Returns 1 if we
2517	* can see a direct way to get it	2343	* can see a direct way to get it
2518	* Modified to be map tile aware -.MSW	2344	* Modified to be map tile aware -.MSW
2519	*/	2345	*/
2520		2346	int
2521
2522	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2347	can_see_monsterP (maptile *m, int x, int y, int dir)
		2348	{
2523	sint16 dx, dy;	2349	sint16 dx, dy;
2524	int mflags;	2350	int mflags;
2525		2351
		2352	if (dir < 0)
2526	if(dir<0) return 0; /* exit condition: invalid direction */	2353	return 0; /* exit condition: invalid direction */
2527		2354
2528	dx = x + freearr_x[dir];	2355	dx = x + freearr_x[dir];
2529	dy = y + freearr_y[dir];	2356	dy = y + freearr_y[dir];
2530		2357
2531	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2358	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2532		2359
2533	/* This functional arguably was incorrect before - it was	2360	/* This functional arguably was incorrect before - it was
2534	* checking for P_WALL - that was basically seeing if	2361	* checking for P_WALL - that was basically seeing if
2535	* we could move to the monster - this is being more	2362	* we could move to the monster - this is being more
2536	* literal on if we can see it. To know if we can actually	2363	* 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	2364	* move to the monster, we'd need the monster passed in or
2538	* at least its move type.	2365	* at least its move type.
2539	*/	2366	*/
2540	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2367	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2368	return 0;
2541		2369
2542	/* yes, can see. */	2370	/* yes, can see. */
2543	if(dir < 9) return 1;	2371	if (dir < 9)
		2372	return 1;
		2373
2544	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2374	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2545	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2375	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2546	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2376	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2547	}	2377	}
2548		2378
2549
2550
2551	/*	2379	/*
2552	* can_pick(picker, item): finds out if an object is possible to be	2380	* 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	2381	* picked up by the picker. Returnes 1 if it can be
2554	* picked up, otherwise 0.	2382	* picked up, otherwise 0.
2555	*	2383	*
…		…
2557	* core dumps if they do.	2385	* core dumps if they do.
2558	*	2386	*
2559	* Add a check so we can't pick up invisible objects (0.93.8)	2387	* Add a check so we can't pick up invisible objects (0.93.8)
2560	*/	2388	*/
2561		2389
		2390	int
2562	int can_pick(const object *who, const object *item) {	2391	can_pick (const object *who, const object *item)
		2392	{
2563	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2393	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2564	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2394	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2565	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2395	!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	}	2396	}
2568
2569		2397
2570	/*	2398	/*
2571	* create clone from object to another	2399	* create clone from object to another
2572	*/	2400	*/
		2401	object *
2573	object *object_create_clone (object *asrc) {	2402	object_create_clone (object *asrc)
		2403	{
2574	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2404	object *dst = 0, *tmp, *src, *part, *prev, *item;
2575		2405
2576	if(!asrc) return NULL;	2406	if (!asrc)
		2407	return 0;
		2408
2577	src = asrc;	2409	src = asrc;
2578	if(src->head)	2410	if (src->head)
2579	src = src->head;	2411	src = src->head;
2580		2412
2581	prev = NULL;	2413	prev = 0;
2582	for(part = src; part; part = part->more) {	2414	for (part = src; part; part = part->more)
2583	tmp = get_object();	2415	{
2584	copy_object(part,tmp);	2416	tmp = part->clone ();
2585	tmp->x -= src->x;	2417	tmp->x -= src->x;
2586	tmp->y -= src->y;	2418	tmp->y -= src->y;
		2419
2587	if(!part->head) {	2420	if (!part->head)
		2421	{
2588	dst = tmp;	2422	dst = tmp;
2589	tmp->head = NULL;	2423	tmp->head = 0;
		2424	}
2590	} else {	2425	else
2591	tmp->head = dst;	2426	tmp->head = dst;
2592	}	2427
2593	tmp->more = NULL;	2428	tmp->more = 0;
		2429
2594	if(prev)	2430	if (prev)
2595	prev->more = tmp;	2431	prev->more = tmp;
		2432
2596	prev = tmp;	2433	prev = tmp;
2597	}	2434	}
2598	/*** copy inventory ***/	2435
2599	for(item = src->inv; item; item = item->below) {	2436	for (item = src->inv; item; item = item->below)
2600	(void) insert_ob_in_ob(object_create_clone(item),dst);	2437	insert_ob_in_ob (object_create_clone (item), dst);
2601	}
2602		2438
2603	return dst;	2439	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	}	2440	}
2613		2441
2614	/* GROS - Creates an object using a string representing its content. */	2442	/* 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 */	2443	/* 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, */	2444	/* 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. */	2445	/* 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. */	2446	/* Remember not to use load_object_str in a time-critical situation. */
2619	/* Also remember that multiparts objects are not supported for now. */	2447	/* Also remember that multiparts objects are not supported for now. */
2620		2448
		2449	object *
2621	object* load_object_str(const char *obstr)	2450	load_object_str (const char *obstr)
2622	{	2451	{
2623	object *op;	2452	object *op;
2624	FILE *tempfile;
2625	char filename[MAX_BUF];	2453	char filename[MAX_BUF];
		2454
2626	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2455	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
		2456
2627	tempfile=fopen(filename,"w");	2457	FILE *tempfile = fopen (filename, "w");
		2458
2628	if (tempfile == NULL)	2459	if (tempfile == NULL)
2629	{	2460	{
2630	LOG(llevError,"Error - Unable to access load object temp file\n");	2461	LOG (llevError, "Error - Unable to access load object temp file\n");
2631	return NULL;	2462	return NULL;
2632	};	2463	}
		2464
2633	fprintf(tempfile,obstr);	2465	fprintf (tempfile, obstr);
2634	fclose(tempfile);	2466	fclose (tempfile);
2635		2467
2636	op=get_object();	2468	op = object::create ();
2637		2469
2638	tempfile=fopen(filename,"r");
2639	if (tempfile == NULL)
2640	{
2641	LOG(llevError,"Error - Unable to read object temp file\n");
2642	return NULL;
2643	};
2644	object_thawer thawer;	2470	object_thawer thawer (filename);
2645	load_object(tempfile,thawer,op,LO_NEWFILE,0);	2471
		2472	if (thawer)
		2473	load_object (thawer, op, 0);
		2474
2646	LOG(llevDebug," load str completed, object=%s\n",op->name);	2475	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2647	CLEAR_FLAG(op,FLAG_REMOVED);	2476	CLEAR_FLAG (op, FLAG_REMOVED);
2648	fclose(tempfile);	2477
2649	return op;	2478	return op;
2650	}	2479	}
2651		2480
2652	/* This returns the first object in who's inventory that	2481	/* This returns the first object in who's inventory that
2653	* has the same type and subtype match.	2482	* has the same type and subtype match.
2654	* returns NULL if no match.	2483	* returns NULL if no match.
2655	*/	2484	*/
		2485	object *
2656	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2486	find_obj_by_type_subtype (const object *who, int type, int subtype)
2657	{	2487	{
2658	object *tmp;	2488	object *tmp;
2659		2489
2660	for (tmp=who->inv; tmp; tmp=tmp->below)	2490	for (tmp = who->inv; tmp; tmp = tmp->below)
2661	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2491	if (tmp->type == type && tmp->subtype == subtype)
		2492	return tmp;
2662		2493
2663	return NULL;	2494	return NULL;
2664	}	2495	}
2665		2496
2666	/* If ob has a field named key, return the link from the list,	2497	/* If ob has a field named key, return the link from the list,
2667	* otherwise return NULL.	2498	* otherwise return NULL.
2668	*	2499	*
2669	* key must be a passed in shared string - otherwise, this won't	2500	* key must be a passed in shared string - otherwise, this won't
2670	* do the desired thing.	2501	* do the desired thing.
2671	*/	2502	*/
		2503	key_value *
2672	key_value * get_ob_key_link(const object * ob, const char * key) {	2504	get_ob_key_link (const object *ob, const char *key)
		2505	{
2673	key_value * link;	2506	key_value *link;
2674		2507
2675	for (link = ob->key_values; link != NULL; link = link->next) {	2508	for (link = ob->key_values; link != NULL; link = link->next)
2676	if (link->key == key) {	2509	if (link->key == key)
2677	return link;	2510	return link;
2678	}	2511
2679	}
2680
2681	return NULL;	2512	return NULL;
2682	}	2513	}
2683		2514
2684	/*	2515	/*
2685	* Returns the value of op has an extra_field for key, or NULL.	2516	* Returns the value of op has an extra_field for key, or NULL.
2686	*	2517	*
2687	* The argument doesn't need to be a shared string.	2518	* The argument doesn't need to be a shared string.
2688	*	2519	*
2689	* The returned string is shared.	2520	* The returned string is shared.
2690	*/	2521	*/
		2522	const char *
2691	const char * get_ob_key_value(const object * op, const char * const key) {	2523	get_ob_key_value (const object *op, const char *const key)
		2524	{
2692	key_value * link;	2525	key_value *link;
2693	const char * canonical_key;	2526	shstr_cmp canonical_key (key);
		2527
		2528	if (!canonical_key)
2694		2529	{
2695	canonical_key = find_string(key);
2696
2697	if (canonical_key == NULL) {
2698	/* 1. There being a field named key on any object	2530	/* 1. There being a field named key on any object
2699	* implies there'd be a shared string to find.	2531	* implies there'd be a shared string to find.
2700	* 2. Since there isn't, no object has this field.	2532	* 2. Since there isn't, no object has this field.
2701	* 3. Therefore, *this* object doesn't have this field.	2533	* 3. Therefore, *this* object doesn't have this field.
2702	*/	2534	*/
2703	return NULL;	2535	return 0;
2704	}	2536	}
2705		2537
2706	/* This is copied from get_ob_key_link() above -	2538	/* This is copied from get_ob_key_link() above -
2707	* only 4 lines, and saves the function call overhead.	2539	* only 4 lines, and saves the function call overhead.
2708	*/	2540	*/
2709	for (link = op->key_values; link != NULL; link = link->next) {	2541	for (link = op->key_values; link; link = link->next)
2710	if (link->key == canonical_key) {	2542	if (link->key == canonical_key)
2711	return link->value;	2543	return link->value;
2712	}	2544
2713	}	2545	return 0;
2714	return NULL;
2715	}	2546	}
2716		2547
2717		2548
2718	/*	2549	/*
2719	* Updates the canonical_key in op to value.	2550	* Updates the canonical_key in op to value.
…		…
2723	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2554	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2724	* keys.	2555	* keys.
2725	*	2556	*
2726	* Returns TRUE on success.	2557	* Returns TRUE on success.
2727	*/	2558	*/
		2559	int
2728	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2560	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2561	{
		2562	key_value *
2729	key_value * field = NULL, *last=NULL;	2563	field = NULL, *last = NULL;
2730		2564
2731	for (field=op->key_values; field != NULL; field=field->next) {	2565	for (field = op->key_values; field != NULL; field = field->next)
2732	if (field->key != canonical_key) {
2733	last = field;
2734	continue;
2735	}
2736		2566	{
2737	if (field->value) FREE_AND_CLEAR_STR(field->value);	2567	if (field->key != canonical_key)
2738	if (value)	2568	{
2739	field->value = add_string(value);	2569	last = field;
2740	else {	2570	continue;
		2571	}
		2572
		2573	if (value)
		2574	field->value = value;
		2575	else
		2576	{
2741	/* Basically, if the archetype has this key set,	2577	/* Basically, if the archetype has this key set,
2742	* we need to store the null value so when we save	2578	* we need to store the null value so when we save
2743	* it, we save the empty value so that when we load,	2579	* it, we save the empty value so that when we load,
2744	* we get this value back again.	2580	* we get this value back again.
2745	*/	2581	*/
2746	if (get_ob_key_link(&op->arch->clone, canonical_key))	2582	if (get_ob_key_link (&op->arch->clone, canonical_key))
2747	field->value = NULL;	2583	field->value = 0;
2748	else {	2584	else
2749	/* Delete this link */	2585	{
2750	if (field->key) FREE_AND_CLEAR_STR(field->key);	2586	if (last)
2751	if (field->value) FREE_AND_CLEAR_STR(field->value);	2587	last->next = field->next;
2752	if (last) last->next = field->next;	2588	else
2753	else op->key_values = field->next;	2589	op->key_values = field->next;
2754	free(field);	2590
2755	}	2591	delete field;
2756	}	2592	}
		2593	}
2757	return TRUE;	2594	return TRUE;
2758	}	2595	}
2759	/* IF we get here, key doesn't exist */	2596	/* IF we get here, key doesn't exist */
2760		2597
2761	/* No field, we'll have to add it. */	2598	/* No field, we'll have to add it. */
		2599
		2600	if (!add_key)
2762		2601	{
2763	if (!add_key) {
2764	return FALSE;	2602	return FALSE;
2765	}	2603	}
2766	/* There isn't any good reason to store a null	2604	/* There isn't any good reason to store a null
2767	* value in the key/value list. If the archetype has	2605	* value in the key/value list. If the archetype has
2768	* this key, then we should also have it, so shouldn't	2606	* this key, then we should also have it, so shouldn't
2769	* be here. If user wants to store empty strings,	2607	* be here. If user wants to store empty strings,
2770	* should pass in ""	2608	* should pass in ""
2771	*/	2609	*/
2772	if (value == NULL) return TRUE;	2610	if (value == NULL)
2773
2774	field = (key_value *) malloc(sizeof(key_value));
2775
2776	field->key = add_refcount(canonical_key);
2777	field->value = add_string(value);
2778	/* Usual prepend-addition. */
2779	field->next = op->key_values;
2780	op->key_values = field;
2781
2782	return TRUE;	2611	return TRUE;
		2612
		2613	field = new key_value;
		2614
		2615	field->key = canonical_key;
		2616	field->value = value;
		2617	/* Usual prepend-addition. */
		2618	field->next = op->key_values;
		2619	op->key_values = field;
		2620
		2621	return TRUE;
2783	}	2622	}
2784		2623
2785	/*	2624	/*
2786	* Updates the key in op to value.	2625	* Updates the key in op to value.
2787	*	2626	*
…		…
2789	* and not add new ones.	2628	* and not add new ones.
2790	* In general, should be little reason FALSE is ever passed in for add_key	2629	* In general, should be little reason FALSE is ever passed in for add_key
2791	*	2630	*
2792	* Returns TRUE on success.	2631	* Returns TRUE on success.
2793	*/	2632	*/
		2633	int
2794	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2634	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2795	const char * canonical_key = NULL;	2635	{
2796	int floating_ref = FALSE;	2636	shstr key_ (key);
2797	int ret;	2637
		2638	return set_ob_key_value_s (op, key_, value, add_key);
		2639	}
		2640
		2641	object::depth_iterator::depth_iterator (object *container)
		2642	: iterator_base (container)
		2643	{
		2644	while (item->inv)
		2645	item = item->inv;
		2646	}
		2647
		2648	void
		2649	object::depth_iterator::next ()
		2650	{
		2651	if (item->below)
2798		2652	{
2799	/* HACK This mess is to make sure set_ob_value() passes a shared string	2653	item = item->below;
2800	* to get_ob_key_link(), without leaving a leaked refcount.	2654
2801	*/	2655	while (item->inv)
		2656	item = item->inv;
2802		2657	}
2803	canonical_key = find_string(key);	2658	else
2804	if (canonical_key == NULL) {	2659	item = item->env;
2805	canonical_key = add_string(key);
2806	floating_ref = TRUE;
2807	}
2808
2809	ret = set_ob_key_value_s(op, canonical_key, value, add_key);
2810
2811	if (floating_ref) {
2812	free_string(canonical_key);
2813	}
2814
2815	return ret;
2816	}	2660	}
		2661
		2662	// return a suitable string describing an objetc in enough detail to find it
		2663	const char *
		2664	object::debug_desc (char *info) const
		2665	{
		2666	char info2[256 * 3];
		2667	char *p = info;
		2668
		2669	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2670	count,
		2671	&name,
		2672	title ? " " : "",
		2673	title ? (const char *)title : "");
		2674
		2675	if (env)
		2676	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2677
		2678	if (map)
		2679	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2680
		2681	return info;
		2682	}
		2683
		2684	const char *
		2685	object::debug_desc () const
		2686	{
		2687	static char info[256 * 3];
		2688	return debug_desc (info);
		2689	}
		2690

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