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Comparing deliantra/server/common/object.C (file contents):
Revision 1.1 by elmex, Sun Aug 13 17:16:00 2006 UTC vs.
Revision 1.101 by root, Mon Jan 1 17:30:33 2007 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.1 2006/08/13 17:16:00 elmex Exp $";
4	*/
5
6	/*	1	/*
7	CrossFire, A Multiplayer game for X-windows	2	CrossFire, A Multiplayer game for X-windows
8		3
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	5	Copyright (C) 1992 Frank Tore Johansen
…		…
21		16
22	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software	18	along with this program; if not, write to the Free Software
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25		20
26	The authors can be reached via e-mail at crossfire-devel@real-time.com	21	The authors can be reached via e-mail at <crossfire@schmorp.de>
27	*/	22	*/
28		23
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying	25	sub/add_weight will transcend the environment updating the carrying
31	variable. */	26	variable. */
32	#include <global.h>	27	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	28	#include <stdio.h>
35	#include <sys/types.h>	29	#include <sys/types.h>
36	#include <sys/uio.h>	30	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	31	#include <object.h>
39	#include <funcpoint.h>	32	#include <funcpoint.h>
40	#include <skills.h>
41	#include <loader.h>	33	#include <loader.h>
42	#ifdef MEMORY_DEBUG	34
43	int nroffreeobjects = 0;	35	#include <bitset>
		36
44	int nrofallocobjects = 0;	37	int nrofallocobjects = 0;
45	#undef OBJ_EXPAND	38	static UUID uuid;
46	#define OBJ_EXPAND 1	39	const uint64 UUID_SKIP = 1<<19;
47	#else
48	object objarray[STARTMAX]; /* All objects, allocated this way at first */
49	int nroffreeobjects = STARTMAX; /* How many OBs allocated and free (free) */
50	int nrofallocobjects = STARTMAX; /* How many OBs allocated (free + used) */
51	#endif
52		40
53	object *objects; /* Pointer to the list of used objects */
54	object *free_objects; /* Pointer to the list of unused objects */
55	object *active_objects; /* List of active objects that need to be processed */	41	object *active_objects; /* List of active objects that need to be processed */
56		42
57	void (*object_free_callback)(object *ob);	43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
58
59	short freearr_x[SIZEOFFREE]=
60	{0,0,1,1,1,0,-1,-1,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,-2,-2,-2,-1,
61	0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3,-3,-3,-3,-3,-2,-1};	44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
62	short freearr_y[SIZEOFFREE]=	45	};
63	{0,-1,-1,0,1,1,1,0,-1,-2,-2,-2,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,	46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
64	-3,-3,-3,-3,-2,-1,0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3};	47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
65	int maxfree[SIZEOFFREE]=	48	};
66	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,	49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
67	48,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49};	50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		51	};
68	int freedir[SIZEOFFREE]= {	52	int freedir[SIZEOFFREE] = {
69	0,1,2,3,4,5,6,7,8,1,2,2,2,3,4,4,4,5,6,6,6,7,8,8,8,	53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
70	1,2,2,2,2,2,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,8};	54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		55	};
71		56
		57	static void
		58	write_uuid (void)
		59	{
		60	char filename1[MAX_BUF], filename2[MAX_BUF];
		61
		62	sprintf (filename1, "%s/uuid", settings.localdir);
		63	sprintf (filename2, "%s/uuid~", settings.localdir);
		64
		65	FILE *fp;
		66
		67	if (!(fp = fopen (filename2, "w")))
		68	{
		69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		70	return;
		71	}
		72
		73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		74	fclose (fp);
		75	rename (filename2, filename1);
		76	}
		77
		78	static void
		79	read_uuid (void)
		80	{
		81	char filename[MAX_BUF];
		82
		83	sprintf (filename, "%s/uuid", settings.localdir);
		84
		85	FILE *fp;
		86
		87	if (!(fp = fopen (filename, "r")))
		88	{
		89	if (errno == ENOENT)
		90	{
		91	LOG (llevInfo, "RESET uid to 1\n");
		92	uuid.seq = 0;
		93	write_uuid ();
		94	return;
		95	}
		96
		97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		98	_exit (1);
		99	}
		100
		101	int version;
		102	unsigned long long uid;
		103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		104	{
		105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		106	_exit (1);
		107	}
		108
		109	uuid.seq = uid;
		110	write_uuid ();
		111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		112	fclose (fp);
		113	}
		114
		115	UUID
		116	gen_uuid ()
		117	{
		118	UUID uid;
		119
		120	uid.seq = ++uuid.seq;
		121
		122	if (!(uuid.seq & (UUID_SKIP - 1)))
		123	write_uuid ();
		124
		125	return uid;
		126	}
		127
		128	void
		129	init_uuid ()
		130	{
		131	read_uuid ();
		132	}
72		133
73	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		135	static int
74	static int compare_ob_value_lists_one(const object * wants, const object * has) {	136	compare_ob_value_lists_one (const object *wants, const object *has)
		137	{
75	key_value * wants_field;	138	key_value *wants_field;
76		139
77	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
78	* objects with lists are rare, and lists stay short. If not, use a	141	* objects with lists are rare, and lists stay short. If not, use a
79	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
80	*/	143	*/
81		144
82	/* For each field in wants, */	145	/* For each field in wants, */
83	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	146	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
		147	{
84	key_value * has_field;	148	key_value *has_field;
85		149
86	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
87	has_field = get_ob_key_link(has, wants_field->key);	151	has_field = get_ob_key_link (has, wants_field->key);
		152
		153	if (has_field == NULL)
88		154	{
89	if (has_field == NULL) {
90	/* No field with that name. */	155	/* No field with that name. */
91	return FALSE;	156	return FALSE;
92	}
93		157	}
		158
94	/* Found the matching field. */	159	/* Found the matching field. */
95	if (has_field->value != wants_field->value) {	160	if (has_field->value != wants_field->value)
		161	{
96	/* Values don't match, so this half of the comparison is false. */	162	/* Values don't match, so this half of the comparison is false. */
97	return FALSE;	163	return FALSE;
98	}	164	}
99		165
100	/* If we get here, we found a match. Now for the next field in wants. */	166	/* If we get here, we found a match. Now for the next field in wants. */
101	}
102		167	}
		168
103	/* If we get here, every field in wants has a matching field in has. */	169	/* If we get here, every field in wants has a matching field in has. */
104	return TRUE;	170	return TRUE;
105	}	171	}
106		172
107	/* Returns TRUE if ob1 has the same key_values as ob2. */	173	/* Returns TRUE if ob1 has the same key_values as ob2. */
		174	static int
108	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	175	compare_ob_value_lists (const object *ob1, const object *ob2)
		176	{
109	/* However, there may be fields in has which aren't partnered in wants,	177	/* However, there may be fields in has which aren't partnered in wants,
110	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
111	*/	179	*/
112	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
113	}	181	}
114		182
115	/* Function examines the 2 objects given to it, and returns true if	183	/* Function examines the 2 objects given to it, and returns true if
116	* they can be merged together.	184	* they can be merged together.
117	*	185	*
118	* Note that this function appears a lot longer than the macro it	186	* Note that this function appears a lot longer than the macro it
119	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
120	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
121	*	189	*
122	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
123	*	191	*
124	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
125	* check weight	193	* check weight
126	*/	194	*/
127		195	bool object::can_merge_slow (object *ob1, object *ob2)
128	int CAN_MERGE(object *ob1, object *ob2) {	196	{
129
130	/* A couple quicksanity checks */	197	/* A couple quicksanity checks */
131	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	198	if (ob1 == ob2
132		199	|| ob1->type != ob2->type
133	if (ob1->speed != ob2->speed) return 0;	200	|| ob1->speed != ob2->speed
134	/* Note sure why the following is the case - either the object has to	201	|| ob1->value != ob2->value
135	* be animated or have a very low speed. Is this an attempted monster	202	|| ob1->name != ob2->name)
136	* check?
137	*/
138	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)
139	return 0;	203	return 0;
140		204
		205	//TODO: this ain't working well, use nicer and correct overflow check
141	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	206	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
142	* value could not be stored in a sint32 (which unfortunately sometimes is	207	* value could not be stored in a sint32 (which unfortunately sometimes is
143	* used to store nrof).	208	* used to store nrof).
144	*/	209	*/
145	if (ob1->nrof+ob2->nrof >= 1UL<<31)	210	if (ob1->nrof + ob2->nrof >= 1UL << 31)
146	return 0;	211	return 0;
147		212
148	/* This is really a spellbook check - really, we should
149	* check all objects in the inventory.
150	*/
151	if (ob1->inv || ob2->inv) {
152	/* if one object has inventory but the other doesn't, not equiv */
153	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) return 0;
154
155	/* Now check to see if the two inventory objects could merge */
156	if (!CAN_MERGE(ob1->inv, ob2->inv)) return 0;
157
158	/* inventory ok - still need to check rest of this object to see
159	* if it is valid.
160	*/
161	}
162
163	/* If the objects have been identified, set the BEEN_APPLIED flag.	213	/* If the objects have been identified, set the BEEN_APPLIED flag.
164	* This is to the comparison of the flags below will be OK. We	214	* This is to the comparison of the flags below will be OK. We
165	* just can't ignore the been applied or identified flags, as they	215	* just can't ignore the been applied or identified flags, as they
166	* are not equal - just if it has been identified, the been_applied	216	* are not equal - just if it has been identified, the been_applied
167	* flags lose any meaning.	217	* flags lose any meaning.
168	*/	218	*/
169	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))	219	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
170	SET_FLAG(ob1, FLAG_BEEN_APPLIED);	220	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
171		221
172	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))	222	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
173	SET_FLAG(ob2, FLAG_BEEN_APPLIED);	223	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
174		224
175		225	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
176	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	226	|| ob1->arch != ob2->arch
177	* being locked in inventory should prevent merging.	227	|| ob1->name != ob2->name
178	* 0x4 in flags3 is CLIENT_SENT	228	|| ob1->title != ob2->title
179	*/	229	|| ob1->msg != ob2->msg
180	if ((ob1->arch != ob2->arch) ||	230	|| ob1->weight != ob2->weight
181	(ob1->flags[0] != ob2->flags[0]) ||
182	(ob1->flags[1] != ob2->flags[1]) ||
183	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||
184	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
185	(ob1->name != ob2->name) ||
186	(ob1->title != ob2->title) ||
187	(ob1->msg != ob2->msg) ||
188	(ob1->weight != ob2->weight) ||
189	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||	231	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
190	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||	232	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
191	(ob1->attacktype != ob2->attacktype) ||	233	|| ob1->attacktype != ob2->attacktype
192	(ob1->magic != ob2->magic) ||	234	|| ob1->magic != ob2->magic
193	(ob1->slaying != ob2->slaying) ||	235	|| ob1->slaying != ob2->slaying
194	(ob1->skill != ob2->skill) ||	236	|| ob1->skill != ob2->skill
195	(ob1->value != ob2->value) ||	237	|| ob1->value != ob2->value
196	(ob1->animation_id != ob2->animation_id) ||	238	|| ob1->animation_id != ob2->animation_id
197	(ob1->client_type != ob2->client_type) ||	239	|| ob1->client_type != ob2->client_type
198	(ob1->materialname != ob2->materialname) ||	240	|| ob1->materialname != ob2->materialname
199	(ob1->lore != ob2->lore) ||	241	|| ob1->lore != ob2->lore
200	(ob1->subtype != ob2->subtype) ||	242	|| ob1->subtype != ob2->subtype
201	(ob1->move_type != ob2->move_type) ||	243	|| ob1->move_type != ob2->move_type
202	(ob1->move_block != ob2->move_block) ||	244	|| ob1->move_block != ob2->move_block
203	(ob1->move_allow != ob2->move_allow) ||	245	|| ob1->move_allow != ob2->move_allow
204	(ob1->move_on != ob2->move_on) ||	246	|| ob1->move_on != ob2->move_on
205	(ob1->move_off != ob2->move_off) ||	247	|| ob1->move_off != ob2->move_off
206	(ob1->move_slow != ob2->move_slow) ||	248	|| ob1->move_slow != ob2->move_slow
207	(ob1->move_slow_penalty != ob2->move_slow_penalty)	249	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
208	)
209	return 0;	250	return 0;
210		251
		252	/* This is really a spellbook check - really, we should
		253	* check all objects in the inventory.
		254	*/
		255	if (ob1->inv || ob2->inv)
		256	{
		257	/* if one object has inventory but the other doesn't, not equiv */
		258	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
		259	return 0;
		260
		261	/* Now check to see if the two inventory objects could merge */
		262	if (!object::can_merge (ob1->inv, ob2->inv))
		263	return 0;
		264
		265	/* inventory ok - still need to check rest of this object to see
		266	* if it is valid.
		267	*/
		268	}
		269
211	/* Don't merge objects that are applied. With the new 'body' code,	270	/* Don't merge objects that are applied. With the new 'body' code,
212	* it is possible for most any character to have more than one of	271	* it is possible for most any character to have more than one of
213	* some items equipped, and we don't want those to merge.	272	* some items equipped, and we don't want those to merge.
214	*/	273	*/
215	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	274	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
216	return 0;	275	return 0;
217		276
		277	/* Note sure why the following is the case - either the object has to
		278	* be animated or have a very low speed. Is this an attempted monster
		279	* check?
		280	*/
		281	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
		282	return 0;
		283
218	switch (ob1->type) {	284	switch (ob1->type)
		285	{
219	case SCROLL:	286	case SCROLL:
220	if (ob1->level != ob2->level) return 0;	287	if (ob1->level != ob2->level)
		288	return 0;
221	break;	289	break;
222
223	}	290	}
		291
224	if (ob1->key_values != NULL || ob2->key_values != NULL) {	292	if (ob1->key_values != NULL || ob2->key_values != NULL)
		293	{
225	/* At least one of these has key_values. */	294	/* At least one of these has key_values. */
226	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {	295	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
227	/* One has fields, but the other one doesn't. */	296	/* One has fields, but the other one doesn't. */
228	return 0;	297	return 0;
229	} else if (!compare_ob_value_lists(ob1, ob2)) {	298	else if (!compare_ob_value_lists (ob1, ob2))
230	return 0;	299	return 0;
231	}	300	}
		301
		302	//TODO: generate an event or call into perl for additional checks
		303	if (ob1->self || ob2->self)
232	}	304	{
		305	ob1->optimise ();
		306	ob2->optimise ();
233		307
		308	if (ob1->self || ob2->self)
		309	return 0;
		310	}
		311
234	/* Everything passes, must be OK. */	312	/* Everything passes, must be OK. */
235	return 1;	313	return 1;
236	}	314	}
237		315
238	/*	316	/*
239	* sum_weight() is a recursive function which calculates the weight	317	* sum_weight() is a recursive function which calculates the weight
240	* an object is carrying. It goes through in figures out how much	318	* an object is carrying. It goes through in figures out how much
241	* containers are carrying, and sums it up.	319	* containers are carrying, and sums it up.
242	*/	320	*/
243	signed long sum_weight(object *op) {	321	long
		322	sum_weight (object *op)
		323	{
244	signed long sum;	324	long sum;
245	object *inv;	325	object *inv;
		326
246	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	327	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		328	{
247	if (inv->inv)	329	if (inv->inv)
248	sum_weight(inv);	330	sum_weight (inv);
249	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	331	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
250	}	332	}
		333
251	if (op->type == CONTAINER && op->stats.Str)	334	if (op->type == CONTAINER && op->stats.Str)
252	sum = (sum * (100 - op->stats.Str))/100;	335	sum = (sum * (100 - op->stats.Str)) / 100;
		336
253	if(op->carrying != sum)	337	if (op->carrying != sum)
254	op->carrying = sum;	338	op->carrying = sum;
		339
255	return sum;	340	return sum;
256	}	341	}
257		342
258	/**	343	/**
259	* Return the outermost environment object for a given object.	344	* Return the outermost environment object for a given object.
260	*/	345	*/
261		346
		347	object *
262	object *object_get_env_recursive (object *op) {	348	object_get_env_recursive (object *op)
		349	{
263	while (op->env != NULL)	350	while (op->env != NULL)
264	op = op->env;	351	op = op->env;
265	return op;	352	return op;
266	}
267
268	/*
269	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
270	* a better check. We basically keeping traversing up until we can't
271	* or find a player.
272	*/
273
274	object *is_player_inv (object *op) {
275	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
276	if (op->env==op)
277	op->env = NULL;
278	return op;
279	}	353	}
280		354
281	/*	355	/*
282	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	356	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
283	* Some error messages.	357	* Some error messages.
284	* The result of the dump is stored in the static global errmsg array.	358	* The result of the dump is stored in the static global errmsg array.
285	*/	359	*/
286		360
287	void dump_object2(object *op) {	361	char *
288	char *cp;
289	/* object *tmp;*/
290
291	if(op->arch!=NULL) {
292	strcat(errmsg,"arch ");
293	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
294	strcat(errmsg,"\n");
295	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
296	strcat(errmsg,cp);
297	#if 0
298	/* Don't dump player diffs - they are too long, mostly meaningless, and
299	* will overflow the buffer.
300	* Changed so that we don't dump inventory either. This may
301	* also overflow the buffer.
302	*/
303	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
304	strcat(errmsg,cp);
305	for (tmp=op->inv; tmp; tmp=tmp->below)
306	dump_object2(tmp);
307	#endif
308	strcat(errmsg,"end\n");
309	} else {
310	strcat(errmsg,"Object ");
311	if (op->name==NULL) strcat(errmsg, "(null)");
312	else strcat(errmsg,op->name);
313	strcat(errmsg,"\n");
314	#if 0
315	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
316	strcat(errmsg,cp);
317	for (tmp=op->inv; tmp; tmp=tmp->below)
318	dump_object2(tmp);
319	#endif
320	strcat(errmsg,"end\n");
321	}
322	}
323
324	/*
325	* Dumps an object. Returns output in the static global errmsg array.
326	*/
327
328	void dump_object(object *op) {	362	dump_object (object *op)
329	if(op==NULL) {
330	strcpy(errmsg,"[NULL pointer]");
331	return;
332	}
333	errmsg[0]='\0';
334	dump_object2(op);
335	}
336
337	/* GROS - Dumps an object. Return the result into a string */
338	/* Note that no checking is done for the validity of the target string, so */
339	/* you need to be sure that you allocated enough space for it. */
340	void dump_me(object *op, char *outstr)
341	{	363	{
342	char *cp;	364	if (!op)
		365	return strdup ("[NULLOBJ]");
343		366
344	if(op==NULL)	367	object_freezer freezer;
345	{	368	save_object (freezer, op, 1);
346	strcpy(outstr,"[NULL pointer]");	369	return freezer.as_string ();
347	return;
348	}
349	outstr[0]='\0';
350
351	if(op->arch!=NULL)
352	{
353	strcat(outstr,"arch ");
354	strcat(outstr,op->arch->name?op->arch->name:"(null)");
355	strcat(outstr,"\n");
356	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
357	strcat(outstr,cp);
358	strcat(outstr,"end\n");
359	}
360	else
361	{
362	strcat(outstr,"Object ");
363	if (op->name==NULL)
364	strcat(outstr, "(null)");
365	else
366	strcat(outstr,op->name);
367	strcat(outstr,"\n");
368	strcat(outstr,"end\n");
369	}
370	}
371
372	/*
373	* This is really verbose...Can be triggered by the P key while in DM mode.
374	* All objects are dumped to stderr (or alternate logfile, if in server-mode)
375	*/
376
377	void dump_all_objects(void) {
378	object *op;
379	for(op=objects;op!=NULL;op=op->next) {
380	dump_object(op);
381	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
382	}
383	}	370	}
384		371
385	/*	372	/*
386	* get_nearest_part(multi-object, object 2) returns the part of the	373	* get_nearest_part(multi-object, object 2) returns the part of the
387	* multi-object 1 which is closest to the second object.	374	* multi-object 1 which is closest to the second object.
388	* If it's not a multi-object, it is returned.	375	* If it's not a multi-object, it is returned.
389	*/	376	*/
390		377
		378	object *
391	object *get_nearest_part(object *op, const object *pl) {	379	get_nearest_part (object *op, const object *pl)
		380	{
392	object *tmp,*closest;	381	object *tmp, *closest;
393	int last_dist,i;	382	int last_dist, i;
		383
394	if(op->more==NULL)	384	if (op->more == NULL)
395	return op;	385	return op;
396	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	386	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
397	if((i=distance(tmp,pl))<last_dist)	387	if ((i = distance (tmp, pl)) < last_dist)
398	closest=tmp,last_dist=i;	388	closest = tmp, last_dist = i;
399	return closest;	389	return closest;
400	}	390	}
401		391
402	/*	392	/*
403	* Returns the object which has the count-variable equal to the argument.	393	* Returns the object which has the count-variable equal to the argument.
404	*/	394	*/
405		395
		396	object *
406	object *find_object(tag_t i) {	397	find_object (tag_t i)
407	object *op;	398	{
408	for(op=objects;op!=NULL;op=op->next)	399	for (object *op = object::first; op; op = op->next)
409	if(op->count==i)	400	if (op->count == i)
410	break;	401	return op;
		402
411	return op;	403	return 0;
412	}	404	}
413		405
414	/*	406	/*
415	* Returns the first object which has a name equal to the argument.	407	* Returns the first object which has a name equal to the argument.
416	* Used only by the patch command, but not all that useful.	408	* Used only by the patch command, but not all that useful.
417	* Enables features like "patch <name-of-other-player> food 999"	409	* Enables features like "patch <name-of-other-player> food 999"
418	*/	410	*/
419		411
		412	object *
420	object *find_object_name(const char *str) {	413	find_object_name (const char *str)
421	const char *name=add_string(str);	414	{
		415	shstr_cmp str_ (str);
422	object *op;	416	object *op;
		417
423	for(op=objects;op!=NULL;op=op->next)	418	for (op = object::first; op != NULL; op = op->next)
424	if(op->name==name)	419	if (op->name == str_)
425	break;	420	break;
426	free_string(name);	421
427	return op;	422	return op;
428	}	423	}
429		424
		425	void
430	void free_all_object_data(void) {	426	free_all_object_data ()
431	#ifdef MEMORY_DEBUG
432	object *op, *next;
433
434	for (op=free_objects; op!=NULL; ) {
435	next=op->next;
436	free(op);
437	nrofallocobjects--;
438	nroffreeobjects--;
439	op=next;
440	}
441	#endif
442	LOG(llevDebug,"%d allocated objects, %d free objects, STARMAX=%d\n",
443	nrofallocobjects, nroffreeobjects,STARTMAX);
444	}
445
446	/*
447	* Returns the object which this object marks as being the owner.
448	* A id-scheme is used to avoid pointing to objects which have been
449	* freed and are now reused. If this is detected, the owner is
450	* set to NULL, and NULL is returned.
451	* Changed 2004-02-12 - if the player is setting at the play again
452	* prompt, he is removed, and we don't want to treat him as an owner of
453	* anything, so check removed flag. I don't expect that this should break
454	* anything - once an object is removed, it is basically dead anyways.
455	*/
456
457	object *get_owner(object *op) {
458	if(op->owner==NULL)
459	return NULL;
460
461	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
462	op->owner->count==op->ownercount)
463	return op->owner;
464
465	op->owner=NULL;
466	op->ownercount=0;
467	return NULL;
468	}
469
470	void clear_owner(object *op)
471	{	427	{
472	if (!op) return;	428	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
473
474	if (op->owner && op->ownercount == op->owner->count)
475	op->owner->refcount--;
476
477	op->owner = NULL;
478	op->ownercount = 0;
479	}	429	}
480
481
482		430
483	/*	431	/*
484	* Sets the owner and sets the skill and exp pointers to owner's current	432	* Sets the owner and sets the skill and exp pointers to owner's current
485	* skill and experience objects.	433	* skill and experience objects.
486	*/	434	*/
487	void set_owner (object *op, object *owner)	435	void
		436	object::set_owner (object *owner)
488	{	437	{
489	if(owner==NULL||op==NULL)	438	if (!owner)
490	return;	439	return;
491		440
492	/* next line added to allow objects which own objects */	441	/* next line added to allow objects which own objects */
493	/* Add a check for ownercounts in here, as I got into an endless loop	442	/* Add a check for ownercounts in here, as I got into an endless loop
494	* with the fireball owning a poison cloud which then owned the	443	* with the fireball owning a poison cloud which then owned the
495	* fireball. I believe that was caused by one of the objects getting	444	* fireball. I believe that was caused by one of the objects getting
496	* freed and then another object replacing it. Since the ownercounts	445	* freed and then another object replacing it. Since the ownercounts
497	* didn't match, this check is valid and I believe that cause is valid.	446	* didn't match, this check is valid and I believe that cause is valid.
498	*/	447	*/
499	while (owner->owner && owner!=owner->owner &&	448	while (owner->owner)
500	owner->ownercount==owner->owner->count) owner=owner->owner;	449	owner = owner->owner;
501		450
502	/* IF the owner still has an owner, we did not resolve to a final owner.
503	* so lets not add to that.
504	*/
505	if (owner->owner) return;
506
507	op->owner=owner;	451	this->owner = owner;
508
509	op->ownercount=owner->count;
510	owner->refcount++;
511
512	}
513
514	/* Set the owner to clone's current owner and set the skill and experience
515	* objects to clone's objects (typically those objects that where the owner's
516	* current skill and experience objects at the time when clone's owner was
517	* set - not the owner's current skill and experience objects).
518	*
519	* Use this function if player created an object (e.g. fire bullet, swarm
520	* spell), and this object creates further objects whose kills should be
521	* accounted for the player's original skill, even if player has changed
522	* skills meanwhile.
523	*/
524	void copy_owner (object *op, object *clone)
525	{
526	object *owner = get_owner (clone);
527	if (owner == NULL) {
528	/* players don't have owners - they own themselves. Update
529	* as appropriate.
530	*/
531	if (clone->type == PLAYER) owner=clone;
532	else return;
533	}
534	set_owner(op, owner);
535
536	}
537
538	/*
539	* Resets vital variables in an object
540	*/
541
542	void reset_object(object *op) {
543
544	op->name = NULL;
545	op->name_pl = NULL;
546	op->title = NULL;
547	op->race = NULL;
548	op->slaying = NULL;
549	op->skill = NULL;
550	op->msg = NULL;
551	op->materialname = NULL;
552	op->lore = NULL;
553	op->current_weapon_script = NULL;
554	clear_object(op);
555	}	452	}
556		453
557	/* Zero the key_values on op, decrementing the shared-string	454	/* Zero the key_values on op, decrementing the shared-string
558	* refcounts and freeing the links.	455	* refcounts and freeing the links.
559	*/	456	*/
		457	static void
560	static void free_key_values(object * op) {	458	free_key_values (object *op)
561	key_value * i;	459	{
562	key_value * next = NULL;	460	for (key_value *i = op->key_values; i != 0;)
563		461	{
564	if (op->key_values == NULL) return;	462	key_value *next = i->next;
		463	delete i;
		464
		465	i = next;
565		466	}
566	for (i = op->key_values; i != NULL; i = next) {	467
567	/* Store next *first*. */
568	next = i->next;
569
570	if (i->key) FREE_AND_CLEAR_STR(i->key);
571	if (i->value) FREE_AND_CLEAR_STR(i->value);
572	i->next = NULL;
573	free(i);
574	}
575
576	op->key_values = NULL;	468	op->key_values = 0;
577	}	469	}
578		470
579
580	/*	471	/*
581	* clear_object() frees everything allocated by an object, and also
582	* clears all variables and flags to default settings.
583	*/
584
585	void clear_object(object *op) {
586
587	event *evt;
588	event *evt2;
589
590	/* redo this to be simpler/more efficient. Was also seeing
591	* crashes in the old code. Move this to the top - am
592	* seeing periodic crashes in this code, and would like to have
593	* as much info available as possible (eg, object name).
594	*/
595	for (evt = op->events; evt; evt=evt2) {
596	evt2 = evt->next;
597
598	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
599	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
600	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
601
602	free(evt);
603	}
604	op->events = NULL;
605
606	free_key_values(op);
607
608	/* the memset will clear all these values for us, but we need
609	* to reduce the refcount on them.
610	*/
611	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);
612	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);
613	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);
614	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);
615	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);
616	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);
617	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);
618	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);
619	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);
620
621
622	memset((void*)op, 0, sizeof (object_special));
623	/* Below here, we clear things that are not done by the memset,
624	* or set default values that are not zero.
625	*/
626	/* This is more or less true */
627	SET_FLAG(op, FLAG_REMOVED);
628
629
630	op->contr = NULL;
631	op->below=NULL;
632	op->above=NULL;
633	op->inv=NULL;
634	op->events=NULL;
635	op->container=NULL;
636	op->env=NULL;
637	op->more=NULL;
638	op->head=NULL;
639	op->map=NULL;
640	op->refcount=0;
641	op->active_next = NULL;
642	op->active_prev = NULL;
643	/* What is not cleared is next, prev, and count */
644
645	op->expmul=1.0;
646	op->face = blank_face;
647	op->attacked_by_count = (tag_t) -1;
648	if (settings.casting_time)
649	op->casting_time = -1;
650
651	}
652
653	/*
654	* copy object first frees everything allocated by the second object,	472	* copy_to first frees everything allocated by the dst object,
655	* and then copies the contends of the first object into the second	473	* and then copies the contents of itself into the second
656	* object, allocating what needs to be allocated. Basically, any	474	* object, allocating what needs to be allocated. Basically, any
657	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	475	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
658	* if the first object is freed, the pointers in the new object	476	* if the first object is freed, the pointers in the new object
659	* will point at garbage.	477	* will point at garbage.
660	*/	478	*/
		479	void
		480	object::copy_to (object *dst)
		481	{
		482	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
		483	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
661		484
662	void copy_object(object *op2, object *op) {	485	*(object_copy *)dst = *this;
663	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);
664	event *evt, *evt2, *evt_new;
665		486
666	/* Decrement the refcounts, but don't bother zeroing the fields;	487	if (is_freed)
667	they'll be overwritten by memcpy. */	488	SET_FLAG (dst, FLAG_FREED);
668	if(op->name!=NULL) free_string(op->name);
669	if(op->name_pl!=NULL) free_string(op->name_pl);
670	if(op->title!=NULL) free_string(op->title);
671	if(op->race!=NULL) free_string(op->race);
672	if(op->slaying!=NULL) free_string(op->slaying);
673	if(op->skill!=NULL) free_string(op->skill);
674	if(op->msg!=NULL) free_string(op->msg);
675	if(op->lore!=NULL) free_string(op->lore);
676	if(op->materialname != NULL) free_string(op->materialname);
677	if(op->custom_name != NULL) free_string(op->custom_name);
678		489
679	/* Basically, same code as from clear_object() */	490	if (is_removed)
680	for (evt = op->events; evt; evt=evt2) {	491	SET_FLAG (dst, FLAG_REMOVED);
681	evt2 = evt->next;
682		492
683	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);	493	if (speed < 0)
684	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
685	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
686
687	free(evt);
688	}
689	op->events = NULL;
690
691	free_key_values(op);
692
693	*(object_special *)op = *(object_special *)op2;
694
695	if(is_freed) SET_FLAG(op,FLAG_FREED);
696	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
697	if(op->name!=NULL) add_refcount(op->name);
698	if(op->name_pl!=NULL) add_refcount(op->name_pl);
699	if(op->title!=NULL) add_refcount(op->title);
700	if(op->race!=NULL) add_refcount(op->race);
701	if(op->slaying!=NULL) add_refcount(op->slaying);
702	if(op->skill!=NULL) add_refcount(op->skill);
703	if(op->lore!=NULL) add_refcount(op->lore);
704	if(op->msg!=NULL) add_refcount(op->msg);
705	if(op->custom_name!=NULL) add_refcount(op->custom_name);
706	if (op->materialname != NULL) add_refcount(op->materialname);
707
708	if((op2->speed<0) && !editor)
709	op->speed_left=op2->speed_left-RANDOM()%200/100.0;	494	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
710		495
711	/* Copy over event information */
712	evt2 = NULL;
713	for (evt = op2->events; evt; evt=evt->next) {
714	evt_new = (event *) malloc(sizeof(event));
715	memcpy(evt_new, evt, sizeof(event));
716	if (evt_new->hook) add_refcount(evt_new->hook);
717	if (evt_new->plugin) add_refcount(evt_new->plugin);
718	if (evt_new->options) add_refcount(evt_new->options);
719	evt_new->next = NULL;
720
721	/* Try to be a little clever here, and store away the
722	* last event we copied, so that its simpler to update the
723	* pointer.
724	*/
725	if (evt2)
726	evt2->next = evt_new;
727	else
728	op->events = evt_new;
729
730	evt2 = evt_new;
731	}
732	/* Copy over key_values, if any. */	496	/* Copy over key_values, if any. */
733	if (op2->key_values != NULL) {	497	if (key_values)
734	key_value * tail = NULL;	498	{
		499	key_value *tail = 0;
735	key_value * i;	500	key_value *i;
736		501
737	op->key_values = NULL;	502	dst->key_values = 0;
738		503
739	for (i = op2->key_values; i != NULL; i = i->next) {	504	for (i = key_values; i; i = i->next)
740	key_value * new_link = (key_value *) malloc(sizeof(key_value));	505	{
		506	key_value *new_link = new key_value;
741		507
742	new_link->next = NULL;	508	new_link->next = 0;
743	new_link->key = add_refcount(i->key);	509	new_link->key = i->key;
744	if (i->value)	510	new_link->value = i->value;
745	new_link->value = add_refcount(i->value);
746	else
747	new_link->value = NULL;
748		511
749	/* Try and be clever here, too. */	512	/* Try and be clever here, too. */
750	if (op->key_values == NULL) {	513	if (!dst->key_values)
751	op->key_values = new_link;	514	{
752	tail = new_link;	515	dst->key_values = new_link;
753	} else {	516	tail = new_link;
754	tail->next = new_link;	517	}
755	tail = new_link;	518	else
		519	{
		520	tail->next = new_link;
		521	tail = new_link;
		522	}
		523	}
756	}	524	}
757	}
758	}
759
760	update_ob_speed(op);
761	}
762		525
763	/*	526	dst->set_speed (dst->speed);
764	* expand_objects() allocates more objects for the list of unused objects.
765	* It is called from get_object() if the unused list is empty.
766	*/
767
768	void expand_objects(void) {
769	int i;
770	object *obj;
771	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));
772
773	if(obj==NULL)
774	fatal(OUT_OF_MEMORY);
775	free_objects=obj;
776	obj[0].prev=NULL;
777	obj[0].next= &obj[1],
778	SET_FLAG(&(obj[0]), FLAG_REMOVED);
779	SET_FLAG(&(obj[0]), FLAG_FREED);
780
781	for(i=1;i<OBJ_EXPAND-1;i++) {
782	obj[i].next= &obj[i+1],
783	obj[i].prev= &obj[i-1],
784	SET_FLAG(&(obj[i]), FLAG_REMOVED);
785	SET_FLAG(&(obj[i]), FLAG_FREED);
786	}
787	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
788	obj[OBJ_EXPAND-1].next=NULL,
789	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
790	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
791
792	nrofallocobjects += OBJ_EXPAND;
793	nroffreeobjects += OBJ_EXPAND;
794	}	527	}
795		528
796	/*
797	* get_object() grabs an object from the list of unused objects, makes
798	* sure it is initialised, and returns it.
799	* If there are no free objects, expand_objects() is called to get more.
800	*/
801
802	object *get_object(void) {
803	object *op;	529	object *
804		530	object::clone ()
805	if(free_objects==NULL) {	531	{
806	expand_objects();	532	object *neu = create ();
807	}	533	copy_to (neu);
808	op=free_objects;
809	#ifdef MEMORY_DEBUG
810	/* The idea is hopefully by doing a realloc, the memory
811	* debugging program will now use the current stack trace to
812	* report leaks.
813	*/
814	op = realloc(op, sizeof(object));
815	SET_FLAG(op, FLAG_REMOVED);
816	SET_FLAG(op, FLAG_FREED);
817	#endif
818
819	if(!QUERY_FLAG(op,FLAG_FREED)) {
820	LOG(llevError,"Fatal: Getting busy object.\n");
821	}
822	free_objects=op->next;
823	if(free_objects!=NULL)
824	free_objects->prev=NULL;
825	op->count= ++ob_count;
826	op->name=NULL;
827	op->name_pl=NULL;
828	op->title=NULL;
829	op->race=NULL;
830	op->slaying=NULL;
831	op->skill = NULL;
832	op->lore=NULL;
833	op->msg=NULL;
834	op->materialname=NULL;
835	op->next=objects;
836	op->prev=NULL;
837	op->active_next = NULL;
838	op->active_prev = NULL;
839	if(objects!=NULL)
840	objects->prev=op;
841	objects=op;
842	clear_object(op);
843	SET_FLAG(op,FLAG_REMOVED);
844	nroffreeobjects--;
845	return op;	534	return neu;
846	}	535	}
847		536
848	/*	537	/*
849	* If an object with the IS_TURNABLE() flag needs to be turned due	538	* If an object with the IS_TURNABLE() flag needs to be turned due
850	* to the closest player being on the other side, this function can	539	* to the closest player being on the other side, this function can
851	* be called to update the face variable, _and_ how it looks on the map.	540	* be called to update the face variable, _and_ how it looks on the map.
852	*/	541	*/
853		542	void
854	void update_turn_face(object *op) {	543	update_turn_face (object *op)
		544	{
855	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	545	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
856	return;	546	return;
		547
857	SET_ANIMATION(op, op->direction);	548	SET_ANIMATION (op, op->direction);
858	update_object(op,UP_OBJ_FACE);	549	update_object (op, UP_OBJ_FACE);
859	}	550	}
860		551
861	/*	552	/*
862	* Updates the speed of an object. If the speed changes from 0 to another	553	* Updates the speed of an object. If the speed changes from 0 to another
863	* value, or vice versa, then add/remove the object from the active list.	554	* value, or vice versa, then add/remove the object from the active list.
864	* This function needs to be called whenever the speed of an object changes.	555	* This function needs to be called whenever the speed of an object changes.
865	*/	556	*/
866		557	void
867	void update_ob_speed(object *op) {	558	object::set_speed (float speed)
868	extern int arch_init;	559	{
869		560	if (flag [FLAG_FREED] && speed)
870	/* No reason putting the archetypes objects on the speed list,	561	{
871	* since they never really need to be updated.
872	*/
873
874	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {
875	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	562	LOG (llevError, "Object %s is freed but has speed.\n", &name);
876	#ifdef MANY_CORES	563	speed = 0;
877	abort();
878	#else
879	op->speed = 0;
880	#endif
881	}	564	}
882	if (arch_init) {
883	return;
884	}
885	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
886	/* If already on active list, don't do anything */
887	if (op->active_next || op->active_prev || op==active_objects)
888	return;
889		565
890	/* process_events() expects us to insert the object at the beginning	566	this->speed = speed;
891	* of the list. */	567
892	op->active_next = active_objects;	568	if (has_active_speed ())
893	if (op->active_next!=NULL)	569	activate ();
894	op->active_next->active_prev = op;
895	active_objects = op;
896	}
897	else {	570	else
898	/* If not on the active list, nothing needs to be done */	571	deactivate ();
899	if (!op->active_next && !op->active_prev && op!=active_objects)
900	return;
901
902	if (op->active_prev==NULL) {
903	active_objects = op->active_next;
904	if (op->active_next!=NULL)
905	op->active_next->active_prev = NULL;
906	}
907	else {
908	op->active_prev->active_next = op->active_next;
909	if (op->active_next)
910	op->active_next->active_prev = op->active_prev;
911	}
912	op->active_next = NULL;
913	op->active_prev = NULL;
914	}
915	}	572	}
916		573
917	/* This function removes object 'op' from the list of active
918	* objects.
919	* This should only be used for style maps or other such
920	* reference maps where you don't want an object that isn't
921	* in play chewing up cpu time getting processed.
922	* The reverse of this is to call update_ob_speed, which
923	* will do the right thing based on the speed of the object.
924	*/
925	void remove_from_active_list(object *op)
926	{
927	/* If not on the active list, nothing needs to be done */
928	if (!op->active_next && !op->active_prev && op!=active_objects)
929	return;
930
931	if (op->active_prev==NULL) {
932	active_objects = op->active_next;
933	if (op->active_next!=NULL)
934	op->active_next->active_prev = NULL;
935	}
936	else {
937	op->active_prev->active_next = op->active_next;
938	if (op->active_next)
939	op->active_next->active_prev = op->active_prev;
940	}
941	op->active_next = NULL;
942	op->active_prev = NULL;
943	}
944
945	/*	574	/*
946	* update_object() updates the array which represents the map.	575	* update_object() updates the the map.
947	* It takes into account invisible objects (and represent squares covered	576	* It takes into account invisible objects (and represent squares covered
948	* by invisible objects by whatever is below them (unless it's another	577	* by invisible objects by whatever is below them (unless it's another
949	* invisible object, etc...)	578	* invisible object, etc...)
950	* If the object being updated is beneath a player, the look-window	579	* If the object being updated is beneath a player, the look-window
951	* of that player is updated (this might be a suboptimal way of	580	* of that player is updated (this might be a suboptimal way of
952	* updating that window, though, since update_object() is called _often_)	581	* updating that window, though, since update_object() is called _often_)
953	*	582	*
954	* action is a hint of what the caller believes need to be done.	583	* action is a hint of what the caller believes need to be done.
955	* For example, if the only thing that has changed is the face (due to
956	* an animation), we don't need to call update_position until that actually
957	* comes into view of a player. OTOH, many other things, like addition/removal
958	* of walls or living creatures may need us to update the flags now.
959	* current action are:	584	* current action are:
960	* UP_OBJ_INSERT: op was inserted	585	* UP_OBJ_INSERT: op was inserted
961	* UP_OBJ_REMOVE: op was removed	586	* UP_OBJ_REMOVE: op was removed
962	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	587	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
963	* as that is easier than trying to look at what may have changed.	588	* as that is easier than trying to look at what may have changed.
964	* UP_OBJ_FACE: only the objects face has changed.	589	* UP_OBJ_FACE: only the objects face has changed.
965	*/	590	*/
966		591	void
967	void update_object(object *op, int action) {	592	update_object (object *op, int action)
968	int update_now=0, flags;	593	{
969	MoveType move_on, move_off, move_block, move_slow;	594	MoveType move_on, move_off, move_block, move_slow;
970		595
971	if (op == NULL) {	596	if (op == NULL)
		597	{
972	/* this should never happen */	598	/* this should never happen */
973	LOG(llevDebug,"update_object() called for NULL object.\n");	599	LOG (llevDebug, "update_object() called for NULL object.\n");
974	return;	600	return;
975	}
976		601	}
977	if(op->env!=NULL) {	602
		603	if (op->env)
		604	{
978	/* Animation is currently handled by client, so nothing	605	/* Animation is currently handled by client, so nothing
979	* to do in this case.	606	* to do in this case.
980	*/	607	*/
981	return;	608	return;
982	}	609	}
983		610
984	/* If the map is saving, don't do anything as everything is	611	/* If the map is saving, don't do anything as everything is
985	* going to get freed anyways.	612	* going to get freed anyways.
986	*/	613	*/
987	if (!op->map || op->map->in_memory == MAP_SAVING) return;	614	if (!op->map || op->map->in_memory == MAP_SAVING)
988		615	return;
		616
989	/* make sure the object is within map boundaries */	617	/* make sure the object is within map boundaries */
990	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	618	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
991	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	619	{
992	LOG(llevError,"update_object() called for object out of map!\n");	620	LOG (llevError, "update_object() called for object out of map!\n");
993	#ifdef MANY_CORES	621	#ifdef MANY_CORES
994	abort();	622	abort ();
995	#endif	623	#endif
996	return;	624	return;
997	}
998		625	}
999	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
1000	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
1001	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
1002	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
1003	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
1004	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
1005		626
		627	mapspace &m = op->ms ();
		628
		629	if (!(m.flags_ & P_UPTODATE))
		630	/* nop */;
1006	if (action == UP_OBJ_INSERT) {	631	else if (action == UP_OBJ_INSERT)
		632	{
		633	// this is likely overkill, TODO: revisit (schmorp)
1007	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	634	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
1008	update_now=1;
1009
1010	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	635	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
1011	update_now=1;	636	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
1012		637	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		638	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
1013	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	639	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
1014	update_now=1;	640	|| (m.move_on | op->move_on ) != m.move_on
1015		641	|| (m.move_off | op->move_off ) != m.move_off
1016	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	642	|| (m.move_slow | op->move_slow) != m.move_slow
1017	update_now=1;
1018
1019	if ((move_on | op->move_on) != move_on) update_now=1;
1020	if ((move_off | op->move_off) != move_off) update_now=1;
1021	/* This isn't perfect, but I don't expect a lot of objects to	643	/* This isn't perfect, but I don't expect a lot of objects to
1022	* to have move_allow right now.	644	* to have move_allow right now.
1023	*/	645	*/
1024	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	646	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
1025	update_now=1;	647	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
1026	if ((move_slow | op->move_slow) != move_slow) update_now=1;	648	m.flags_ = 0;
1027	}	649	}
1028	/* if the object is being removed, we can't make intelligent	650	/* if the object is being removed, we can't make intelligent
1029	* decisions, because remove_ob can't really pass the object	651	* decisions, because remove_ob can't really pass the object
1030	* that is being removed.	652	* that is being removed.
1031	*/	653	*/
1032	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	654	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1033	update_now=1;	655	m.flags_ = 0;
1034	} else if (action == UP_OBJ_FACE) {	656	else if (action == UP_OBJ_FACE)
1035	/* Nothing to do for that case */	657	/* Nothing to do for that case */ ;
1036	}
1037	else {	658	else
1038	LOG(llevError,"update_object called with invalid action: %d\n", action);	659	LOG (llevError, "update_object called with invalid action: %d\n", action);
1039	}
1040		660
1041	if (update_now) {
1042	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1043	update_position(op->map, op->x, op->y);
1044	}
1045
1046	if(op->more!=NULL)	661	if (op->more)
1047	update_object(op->more, action);	662	update_object (op->more, action);
1048	}	663	}
1049		664
		665	object *object::first;
1050		666
1051	/*	667	object::object ()
1052	* free_object() frees everything allocated by an object, removes	668	{
1053	* it from the list of used objects, and puts it on the list of
1054	* free objects. The IS_FREED() flag is set in the object.
1055	* The object must have been removed by remove_ob() first for
1056	* this function to succeed.
1057	*
1058	* If free_inventory is set, free inventory as well. Else drop items in
1059	* inventory to the ground.
1060	*/
1061
1062	void free_object(object *ob) {
1063	free_object2(ob, 0);
1064	}
1065	void free_object2(object *ob, int free_inventory) {
1066	object *tmp,*op;
1067
1068	if (object_free_callback)
1069	object_free_callback (ob);
1070
1071	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {
1072	LOG(llevDebug,"Free object called with non removed object\n");
1073	dump_object(ob);
1074	#ifdef MANY_CORES
1075	abort();
1076	#endif
1077	}
1078	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {
1079	LOG(llevMonster,"Warning: tried to free friendly object.\n");
1080	remove_friendly_object(ob);
1081	}
1082	if(QUERY_FLAG(ob,FLAG_FREED)) {
1083	dump_object(ob);
1084	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);
1085	return;
1086	}
1087	if(ob->more!=NULL) {
1088	free_object2(ob->more, free_inventory);
1089	ob->more=NULL;
1090	}
1091	if (ob->inv) {
1092	/* Only if the space blocks everything do we not process -
1093	* if some form of movemnt is allowed, let objects
1094	* drop on that space.
1095	*/
1096	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||
1097	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))
1098	{
1099	op=ob->inv;
1100	while(op!=NULL) {
1101	tmp=op->below;
1102	remove_ob(op);
1103	free_object2(op, free_inventory);
1104	op=tmp;
1105	}
1106	}
1107	else { /* Put objects in inventory onto this space */
1108	op=ob->inv;
1109	while(op!=NULL) {
1110	tmp=op->below;
1111	remove_ob(op);
1112	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||
1113	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))
1114	free_object(op);
1115	else {
1116	op->x=ob->x;
1117	op->y=ob->y;
1118	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */
1119	}
1120	op=tmp;
1121	}
1122	}
1123	}
1124	/* Remove object from the active list */
1125	ob->speed = 0;
1126	update_ob_speed(ob);
1127
1128	SET_FLAG(ob, FLAG_FREED);	669	SET_FLAG (this, FLAG_REMOVED);
1129	ob->count = 0;
1130		670
		671	expmul = 1.0;
		672	face = blank_face;
		673	}
		674
		675	object::~object ()
		676	{
		677	free_key_values (this);
		678	}
		679
		680	void object::link ()
		681	{
		682	count = ++ob_count;
		683	uuid = gen_uuid ();
		684
		685	prev = 0;
		686	next = object::first;
		687
		688	if (object::first)
		689	object::first->prev = this;
		690
		691	object::first = this;
		692	}
		693
		694	void object::unlink ()
		695	{
		696	if (this == object::first)
		697	object::first = next;
		698
1131	/* Remove this object from the list of used objects */	699	/* Remove this object from the list of used objects */
1132	if(ob->prev==NULL) {	700	if (prev) prev->next = next;
1133	objects=ob->next;	701	if (next) next->prev = prev;
1134	if(objects!=NULL)
1135	objects->prev=NULL;
1136	}
1137	else {
1138	ob->prev->next=ob->next;
1139	if(ob->next!=NULL)
1140	ob->next->prev=ob->prev;
1141	}
1142
1143	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1144	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1145	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1146	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1147	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1148	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1149	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1150	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1151	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1152		702
		703	prev = 0;
		704	next = 0;
		705	}
		706
		707	bool
		708	object::active () const
		709	{
		710	return active_next || active_prev || this == active_objects;
		711	}
		712
		713	void
		714	object::activate ()
		715	{
		716	/* If already on active list, don't do anything */
		717	if (active ())
		718	return;
		719
		720	if (has_active_speed ())
1153		721	{
1154	/* Why aren't events freed? */	722	/* process_events() expects us to insert the object at the beginning
1155	free_key_values(ob);	723	* of the list. */
		724	active_next = active_objects;
1156		725
1157	#if 0 /* MEMORY_DEBUG*/	726	if (active_next)
1158	/* This is a nice idea. Unfortunately, a lot of the code in crossfire	727	active_next->active_prev = this;
1159	* presumes the freed_object will stick around for at least a little	728
1160	* bit	729	active_objects = this;
1161	*/	730	}
1162	/* this is necessary so that memory debugging programs will	731	}
1163	* be able to accurately report source of malloc. If we recycle	732
1164	* objects, then some other area may be doing the get_object	733	void
1165	* and not freeing it, but the original one that malloc'd the	734	object::activate_recursive ()
1166	* object will get the blame.	735	{
		736	activate ();
		737
		738	for (object *op = inv; op; op = op->above)
		739	op->activate_recursive ();
		740	}
		741
		742	/* This function removes object 'op' from the list of active
		743	* objects.
		744	* This should only be used for style maps or other such
		745	* reference maps where you don't want an object that isn't
		746	* in play chewing up cpu time getting processed.
		747	* The reverse of this is to call update_ob_speed, which
		748	* will do the right thing based on the speed of the object.
		749	*/
		750	void
		751	object::deactivate ()
		752	{
		753	/* If not on the active list, nothing needs to be done */
		754	if (!active ())
		755	return;
		756
		757	if (active_prev == 0)
		758	{
		759	active_objects = active_next;
		760	if (active_next)
		761	active_next->active_prev = 0;
		762	}
		763	else
		764	{
		765	active_prev->active_next = active_next;
		766	if (active_next)
		767	active_next->active_prev = active_prev;
		768	}
		769
		770	active_next = 0;
		771	active_prev = 0;
		772	}
		773
		774	void
		775	object::deactivate_recursive ()
		776	{
		777	for (object *op = inv; op; op = op->above)
		778	op->deactivate_recursive ();
		779
		780	deactivate ();
		781	}
		782
		783	/*
		784	* Remove and free all objects in the inventory of the given object.
		785	* object.c ?
		786	*/
		787	void
		788	object::destroy_inv (bool drop_to_ground)
		789	{
		790	// need to check first, because the checks below might segfault
		791	// as we might be on an invalid mapspace and crossfire code
		792	// is too buggy to ensure that the inventory is empty.
		793	// corollary: if you create arrows etc. with stuff in tis inventory,
		794	// cf will crash below with off-map x and y
		795	if (!inv)
		796	return;
		797
		798	/* Only if the space blocks everything do we not process -
		799	* if some form of movement is allowed, let objects
		800	* drop on that space.
1167	*/	801	*/
1168	free(ob);	802	if (!drop_to_ground
1169	#else	803	|| !map
		804	|| map->in_memory != MAP_IN_MEMORY
		805	|| ms ().move_block == MOVE_ALL)
		806	{
		807	while (inv)
		808	{
		809	inv->destroy_inv (drop_to_ground);
		810	inv->destroy ();
		811	}
		812	}
		813	else
		814	{ /* Put objects in inventory onto this space */
		815	while (inv)
		816	{
		817	object *op = inv;
1170		818
1171	/* Now link it with the free_objects list: */	819	if (op->flag [FLAG_STARTEQUIP]
1172	ob->prev=NULL;	820	|| op->flag [FLAG_NO_DROP]
1173	ob->next=free_objects;	821	|| op->type == RUNE
1174	if(free_objects!=NULL)	822	|| op->type == TRAP
1175	free_objects->prev=ob;	823	|| op->flag [FLAG_IS_A_TEMPLATE])
1176	free_objects=ob;	824	op->destroy ();
1177	nroffreeobjects++;	825	else
1178	#endif	826	map->insert (op, x, y);
		827	}
		828	}
1179	}	829	}
1180		830
1181	/*	831	object *object::create ()
1182	* count_free() returns the number of objects on the list of free objects.	832	{
1183	*/
1184
1185	int count_free(void) {
1186	int i=0;
1187	object *tmp=free_objects;	833	object *op = new object;
1188	while(tmp!=NULL)	834	op->link ();
1189	tmp=tmp->next, i++;
1190	return i;	835	return op;
1191	}	836	}
1192		837
1193	/*	838	void
1194	* count_used() returns the number of objects on the list of used objects.	839	object::do_destroy ()
1195	*/	840	{
		841	if (flag [FLAG_IS_LINKED])
		842	remove_button_link (this);
1196		843
1197	int count_used(void) {	844	if (flag [FLAG_FRIENDLY])
1198	int i=0;	845	remove_friendly_object (this);
1199	object *tmp=objects;	846
1200	while(tmp!=NULL)	847	if (!flag [FLAG_REMOVED])
1201	tmp=tmp->next, i++;	848	remove ();
		849
		850	if (flag [FLAG_FREED])
1202	return i;	851	return;
1203	}
1204		852
1205	/*	853	set_speed (0);
1206	* count_active() returns the number of objects on the list of active objects.
1207	*/
1208		854
1209	int count_active(void) {	855	flag [FLAG_FREED] = 1;
1210	int i=0;	856
1211	object *tmp=active_objects;	857	attachable::do_destroy ();
1212	while(tmp!=NULL)	858
1213	tmp=tmp->active_next, i++;	859	destroy_inv (true);
		860	unlink ();
		861
		862	// hack to ensure that freed objects still have a valid map
		863	{
		864	static maptile *freed_map; // freed objects are moved here to avoid crashes
		865
		866	if (!freed_map)
		867	{
		868	freed_map = new maptile;
		869
		870	freed_map->name = "/internal/freed_objects_map";
		871	freed_map->width = 3;
		872	freed_map->height = 3;
		873
		874	freed_map->alloc ();
		875	}
		876
		877	map = freed_map;
		878	x = 1;
		879	y = 1;
		880	}
		881
		882	head = 0;
		883
		884	if (more)
		885	{
		886	more->destroy ();
		887	more = 0;
		888	}
		889
		890	// clear those pointers that likely might have circular references to us
		891	owner = 0;
		892	enemy = 0;
		893	attacked_by = 0;
		894
		895	// only relevant for players(?), but make sure of it anyways
		896	contr = 0;
		897	}
		898
		899	void
		900	object::destroy (bool destroy_inventory)
		901	{
		902	if (destroyed ())
1214	return i;	903	return;
		904
		905	if (destroy_inventory)
		906	destroy_inv (false);
		907
		908	attachable::destroy ();
1215	}	909	}
1216		910
1217	/*	911	/*
1218	* sub_weight() recursively (outwards) subtracts a number from the	912	* sub_weight() recursively (outwards) subtracts a number from the
1219	* weight of an object (and what is carried by it's environment(s)).	913	* weight of an object (and what is carried by it's environment(s)).
1220	*/	914	*/
1221		915	void
1222	void sub_weight (object *op, signed long weight) {	916	sub_weight (object *op, signed long weight)
		917	{
1223	while (op != NULL) {	918	while (op != NULL)
		919	{
1224	if (op->type == CONTAINER) {	920	if (op->type == CONTAINER)
1225	weight=(signed long)(weight*(100-op->stats.Str)/100);	921	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1226	}	922
1227	op->carrying-=weight;	923	op->carrying -= weight;
1228	op = op->env;	924	op = op->env;
1229	}	925	}
1230	}	926	}
1231		927
1232	/* remove_ob(op):	928	/* op->remove ():
1233	* This function removes the object op from the linked list of objects	929	* This function removes the object op from the linked list of objects
1234	* which it is currently tied to. When this function is done, the	930	* which it is currently tied to. When this function is done, the
1235	* object will have no environment. If the object previously had an	931	* object will have no environment. If the object previously had an
1236	* environment, the x and y coordinates will be updated to	932	* environment, the x and y coordinates will be updated to
1237	* the previous environment.	933	* the previous environment.
1238	* Beware: This function is called from the editor as well!	934	* Beware: This function is called from the editor as well!
1239	*/	935	*/
1240		936	void
1241	void remove_ob(object *op) {	937	object::remove ()
		938	{
1242	object *tmp,*last=NULL;	939	object *tmp, *last = 0;
1243	object *otmp;	940	object *otmp;
1244	tag_t tag;
1245	int check_walk_off;
1246	mapstruct *m;
1247	sint16 x,y;
1248
1249		941
1250	if(QUERY_FLAG(op,FLAG_REMOVED)) {	942	if (QUERY_FLAG (this, FLAG_REMOVED))
1251	dump_object(op);	943	return;
1252	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1253		944
1254	/* Changed it to always dump core in this case. As has been learned
1255	* in the past, trying to recover from errors almost always
1256	* make things worse, and this is a real error here - something
1257	* that should not happen.
1258	* Yes, if this was a mission critical app, trying to do something
1259	* to recover may make sense, but that is because failure of the app
1260	* may have other disastrous problems. Cf runs out of a script
1261	* so is easily enough restarted without any real problems.
1262	* MSW 2001-07-01
1263	*/
1264	abort();
1265	}
1266	if(op->more!=NULL)
1267	remove_ob(op->more);
1268
1269	SET_FLAG(op, FLAG_REMOVED);	945	SET_FLAG (this, FLAG_REMOVED);
		946	INVOKE_OBJECT (REMOVE, this);
1270		947
		948	if (more)
		949	more->remove ();
		950
1271	/*	951	/*
1272	* In this case, the object to be removed is in someones	952	* In this case, the object to be removed is in someones
1273	* inventory.	953	* inventory.
1274	*/	954	*/
1275	if(op->env!=NULL) {	955	if (env)
1276	if(op->nrof)	956	{
		957	if (nrof)
1277	sub_weight(op->env, op->weight*op->nrof);	958	sub_weight (env, weight * nrof);
1278	else	959	else
1279	sub_weight(op->env, op->weight+op->carrying);	960	sub_weight (env, weight + carrying);
1280		961
1281	/* NO_FIX_PLAYER is set when a great many changes are being	962	/* NO_FIX_PLAYER is set when a great many changes are being
1282	* made to players inventory. If set, avoiding the call	963	* made to players inventory. If set, avoiding the call
1283	* to save cpu time.	964	* to save cpu time.
1284	*/	965	*/
1285	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	966	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1286	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	967	otmp->update_stats ();
1287	fix_player(otmp);
1288		968
1289	if(op->above!=NULL)	969	if (above)
1290	op->above->below=op->below;	970	above->below = below;
1291	else	971	else
1292	op->env->inv=op->below;	972	env->inv = below;
1293		973
1294	if(op->below!=NULL)	974	if (below)
1295	op->below->above=op->above;	975	below->above = above;
1296		976
1297	/* we set up values so that it could be inserted into	977	/* we set up values so that it could be inserted into
1298	* the map, but we don't actually do that - it is up	978	* the map, but we don't actually do that - it is up
1299	* to the caller to decide what we want to do.	979	* to the caller to decide what we want to do.
1300	*/
1301	op->x=op->env->x,op->y=op->env->y;
1302	op->ox=op->x,op->oy=op->y;
1303	op->map=op->env->map;
1304	op->above=NULL,op->below=NULL;
1305	op->env=NULL;
1306	return;
1307	}
1308
1309	/* If we get here, we are removing it from a map */
1310	if (op->map == NULL) return;
1311
1312	x = op->x;
1313	y = op->y;
1314	m = get_map_from_coord(op->map, &x, &y);
1315
1316	if (!m) {
1317	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1318	op->map->path, op->x, op->y);
1319	/* in old days, we used to set x and y to 0 and continue.
1320	* it seems if we get into this case, something is probablye
1321	* screwed up and should be fixed.
1322	*/
1323	abort();
1324	}
1325	if (op->map != m) {
1326	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1327	op->map->path, m->path, op->x, op->y, x, y);
1328	}
1329
1330	/* Re did the following section of code - it looks like it had
1331	* lots of logic for things we no longer care about
1332	*/	980	*/
		981	x = env->x, y = env->y;
		982	map = env->map;
		983	above = 0, below = 0;
		984	env = 0;
		985	}
		986	else if (map)
		987	{
		988	if (type == PLAYER)
		989	{
		990	--map->players;
		991	map->touch ();
		992	}
1333		993
		994	map->dirty = true;
		995
1334	/* link the object above us */	996	/* link the object above us */
1335	if (op->above)	997	if (above)
1336	op->above->below=op->below;	998	above->below = below;
1337	else	999	else
1338	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */	1000	map->at (x, y).top = below; /* we were top, set new top */
1339		1001
1340	/* Relink the object below us, if there is one */	1002	/* Relink the object below us, if there is one */
1341	if(op->below) {	1003	if (below)
1342	op->below->above=op->above;	1004	below->above = above;
1343	} else {	1005	else
		1006	{
1344	/* Nothing below, which means we need to relink map object for this space	1007	/* Nothing below, which means we need to relink map object for this space
1345	* use translated coordinates in case some oddness with map tiling is	1008	* use translated coordinates in case some oddness with map tiling is
1346	* evident	1009	* evident
1347	*/	1010	*/
1348	if(GET_MAP_OB(m,x,y)!=op) {	1011	if (GET_MAP_OB (map, x, y) != this)
1349	dump_object(op);	1012	{
		1013	char *dump = dump_object (this);
		1014	LOG (llevError,
1350	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);	1015	"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);
1351	dump_object(GET_MAP_OB(m,x,y));	1016	free (dump);
1352	LOG(llevError,"%s\n",errmsg);	1017	dump = dump_object (GET_MAP_OB (map, x, y));
1353	}	1018	LOG (llevError, "%s\n", dump);
1354	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1019	free (dump);
1355	}	1020	}
1356	op->above=NULL;
1357	op->below=NULL;
1358		1021
		1022	map->at (x, y).bot = above; /* goes on above it. */
		1023	}
		1024
		1025	above = 0;
		1026	below = 0;
		1027
1359	if (op->map->in_memory == MAP_SAVING)	1028	if (map->in_memory == MAP_SAVING)
1360	return;	1029	return;
1361		1030
1362	tag = op->count;	1031	int check_walk_off = !flag [FLAG_NO_APPLY];
1363	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1032
1364	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1033	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)
		1034	{
1365	/* No point updating the players look faces if he is the object	1035	/* No point updating the players look faces if he is the object
1366	* being removed.	1036	* being removed.
1367	*/	1037	*/
1368		1038
1369	if(tmp->type==PLAYER && tmp!=op) {	1039	if (tmp->type == PLAYER && tmp != this)
		1040	{
1370	/* If a container that the player is currently using somehow gets	1041	/* If a container that the player is currently using somehow gets
1371	* removed (most likely destroyed), update the player view	1042	* removed (most likely destroyed), update the player view
1372	* appropriately.	1043	* appropriately.
1373	*/	1044	*/
1374	if (tmp->container==op) {	1045	if (tmp->container == this)
1375	CLEAR_FLAG(op, FLAG_APPLIED);	1046	{
1376	tmp->container=NULL;	1047	flag [FLAG_APPLIED] = 0;
1377	}	1048	tmp->container = 0;
1378	tmp->contr->socket.update_look=1;	1049	}
1379	}	1050
		1051	if (tmp->contr->ns)
		1052	tmp->contr->ns->floorbox_update ();
		1053	}
		1054
1380	/* See if player moving off should effect something */	1055	/* See if object moving off should effect something */
1381	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1056	if (check_walk_off
		1057	&& ((move_type & tmp->move_off)
1382	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1058	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1059	{
		1060	move_apply (tmp, this, 0);
1383		1061
1384	move_apply(tmp, op, NULL);	1062	if (destroyed ())
1385	if (was_destroyed (op, tag)) {	1063	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1386	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1064	}
1387	"leaving object\n", tmp->name, tmp->arch->name);
1388	}
1389	}
1390		1065
1391	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1066	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1392		1067	//TODO: why is this horrible hacka fix? get rid of this code=bug! (schmorp)
1393	if(tmp->above == tmp)	1068	if (tmp->above == tmp)
1394	tmp->above = NULL;	1069	tmp->above = 0;
1395	last=tmp;	1070
1396	}	1071	last = tmp;
		1072	}
		1073
1397	/* last == NULL of there are no objects on this space */	1074	/* last == NULL if there are no objects on this space */
1398	if (last==NULL) {	1075	//TODO: this makes little sense, why only update the topmost object?
1399	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1076	if (!last)
1400	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1077	map->at (x, y).flags_ = 0;
1401	* those out anyways, and if there are any flags set right now, they won't
1402	* be correct anyways.
1403	*/
1404	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1405	update_position(op->map, op->x, op->y);
1406	}
1407	else	1078	else
1408	update_object(last, UP_OBJ_REMOVE);	1079	update_object (last, UP_OBJ_REMOVE);
1409		1080
1410	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1081	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1411	update_all_los(op->map, op->x, op->y);	1082	update_all_los (map, x, y);
1412		1083	}
1413	}	1084	}
1414		1085
1415	/*	1086	/*
1416	* merge_ob(op,top):	1087	* merge_ob(op,top):
1417	*	1088	*
1418	* This function goes through all objects below and including top, and	1089	* This function goes through all objects below and including top, and
1419	* merges op to the first matching object.	1090	* merges op to the first matching object.
1420	* If top is NULL, it is calculated.	1091	* If top is NULL, it is calculated.
1421	* Returns pointer to object if it succeded in the merge, otherwise NULL	1092	* Returns pointer to object if it succeded in the merge, otherwise NULL
1422	*/	1093	*/
1423		1094	object *
1424	object *merge_ob(object *op, object *top) {	1095	merge_ob (object *op, object *top)
		1096	{
1425	if(!op->nrof)	1097	if (!op->nrof)
1426	return 0;	1098	return 0;
1427	if(top==NULL)	1099
		1100	if (top)
1428	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1101	for (top = op; top && top->above; top = top->above)
		1102	;
		1103
1429	for(;top!=NULL;top=top->below) {	1104	for (; top; top = top->below)
		1105	{
1430	if(top==op)	1106	if (top == op)
1431	continue;	1107	continue;
1432	if (CAN_MERGE(op,top))	1108
1433	{	1109	if (object::can_merge (op, top))
		1110	{
1434	top->nrof+=op->nrof;	1111	top->nrof += op->nrof;
		1112
1435	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1113	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1436	op->weight = 0; /* Don't want any adjustements now */	1114	op->weight = 0; /* Don't want any adjustements now */
1437	remove_ob(op);	1115	op->destroy ();
1438	free_object(op);
1439	return top;	1116	return top;
1440	}	1117	}
1441	}	1118	}
		1119
1442	return NULL;	1120	return 0;
1443	}	1121	}
1444		1122
1445	/*	1123	/*
1446	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1124	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1447	* job preparing multi-part monsters	1125	* job preparing multi-part monsters
1448	*/	1126	*/
		1127	object *
1449	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1128	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1450	object* tmp;	1129	{
1451	if (op->head)	1130	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1452	op=op->head;	1131	{
1453	for (tmp=op;tmp;tmp=tmp->more){
1454	tmp->x=x+tmp->arch->clone.x;	1132	tmp->x = x + tmp->arch->clone.x;
1455	tmp->y=y+tmp->arch->clone.y;	1133	tmp->y = y + tmp->arch->clone.y;
1456	}	1134	}
		1135
1457	return insert_ob_in_map (op, m, originator, flag);	1136	return insert_ob_in_map (op, m, originator, flag);
1458	}	1137	}
1459		1138
1460	/*	1139	/*
1461	* insert_ob_in_map (op, map, originator, flag):	1140	* insert_ob_in_map (op, map, originator, flag):
1462	* This function inserts the object in the two-way linked list	1141	* This function inserts the object in the two-way linked list
…		…
1475	* Return value:	1154	* Return value:
1476	* new object if 'op' was merged with other object	1155	* new object if 'op' was merged with other object
1477	* NULL if 'op' was destroyed	1156	* NULL if 'op' was destroyed
1478	* just 'op' otherwise	1157	* just 'op' otherwise
1479	*/	1158	*/
1480		1159	object *
1481	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1160	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1482	{	1161	{
1483	object *tmp, *top, *floor=NULL;	1162	object *tmp, *top, *floor = NULL;
1484	sint16 x,y;	1163	sint16 x, y;
1485		1164
1486	if (QUERY_FLAG (op, FLAG_FREED)) {	1165	if (QUERY_FLAG (op, FLAG_FREED))
		1166	{
1487	LOG (llevError, "Trying to insert freed object!\n");	1167	LOG (llevError, "Trying to insert freed object!\n");
1488	return NULL;	1168	return NULL;
		1169	}
		1170
		1171	if (!m)
1489	}	1172	{
1490	if(m==NULL) {	1173	char *dump = dump_object (op);
1491	dump_object(op);
1492	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1174	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1493	return op;	1175	free (dump);
		1176	return op;
1494	}	1177	}
		1178
1495	if(out_of_map(m,op->x,op->y)) {	1179	if (out_of_map (m, op->x, op->y))
1496	dump_object(op);	1180	{
		1181	char *dump = dump_object (op);
1497	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1182	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1498	#ifdef MANY_CORES	1183	#ifdef MANY_CORES
1499	/* Better to catch this here, as otherwise the next use of this object	1184	/* Better to catch this here, as otherwise the next use of this object
1500	* is likely to cause a crash. Better to find out where it is getting	1185	* is likely to cause a crash. Better to find out where it is getting
1501	* improperly inserted.	1186	* improperly inserted.
1502	*/	1187	*/
1503	abort();	1188	abort ();
1504	#endif	1189	#endif
1505	return op;	1190	free (dump);
		1191	return op;
1506	}	1192	}
		1193
1507	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1194	if (!QUERY_FLAG (op, FLAG_REMOVED))
1508	dump_object(op);	1195	{
		1196	char *dump = dump_object (op);
1509	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1197	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1510	return op;	1198	free (dump);
		1199	return op;
		1200	}
		1201
		1202	if (op->more)
1511	}	1203	{
1512	if(op->more!=NULL) {
1513	/* The part may be on a different map. */	1204	/* The part may be on a different map. */
1514		1205
1515	object *more = op->more;	1206	object *more = op->more;
1516		1207
1517	/* We really need the caller to normalize coordinates - if	1208	/* We really need the caller to normalize coordinates - if
1518	* we set the map, that doesn't work if the location is within	1209	* we set the map, that doesn't work if the location is within
1519	* a map and this is straddling an edge. So only if coordinate	1210	* a map and this is straddling an edge. So only if coordinate
1520	* is clear wrong do we normalize it.	1211	* is clear wrong do we normalize it.
1521	*/	1212	*/
1522	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1213	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1523	/* Debugging information so you can see the last coordinates this object had */
1524	more->ox = more->x;
1525	more->oy = more->y;
1526	more->map = get_map_from_coord(m, &more->x, &more->y);	1214	more->map = get_map_from_coord (m, &more->x, &more->y);
1527	} else if (!more->map) {	1215	else if (!more->map)
		1216	{
1528	/* For backwards compatibility - when not dealing with tiled maps,	1217	/* For backwards compatibility - when not dealing with tiled maps,
1529	* more->map should always point to the parent.	1218	* more->map should always point to the parent.
1530	*/	1219	*/
1531	more->map = m;	1220	more->map = m;
1532	}	1221	}
1533		1222
1534	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1223	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1224	{
1535	if ( ! op->head)	1225	if (!op->head)
1536	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1226	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1537	return NULL;	1227
1538	}	1228	return 0;
		1229	}
1539	}	1230	}
		1231
1540	CLEAR_FLAG(op,FLAG_REMOVED);	1232	CLEAR_FLAG (op, FLAG_REMOVED);
1541		1233
1542	/* Debugging information so you can see the last coordinates this object had */
1543	op->ox=op->x;
1544	op->oy=op->y;
1545
1546	/* Ideally, the caller figures this out. However, it complicates a lot	1234	/* Ideally, the caller figures this out. However, it complicates a lot
1547	* of areas of callers (eg, anything that uses find_free_spot would now	1235	* of areas of callers (eg, anything that uses find_free_spot would now
1548	* need extra work	1236	* need extra work
1549	*/	1237	*/
1550	op->map=get_map_from_coord(m, &op->x, &op->y);	1238	op->map = get_map_from_coord (m, &op->x, &op->y);
1551	x = op->x;	1239	x = op->x;
1552	y = op->y;	1240	y = op->y;
1553		1241
1554	/* this has to be done after we translate the coordinates.	1242	/* this has to be done after we translate the coordinates.
1555	*/	1243	*/
1556	if(op->nrof && !(flag & INS_NO_MERGE)) {	1244	if (op->nrof && !(flag & INS_NO_MERGE))
1557	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1245	for (tmp = GET_MAP_OB (op->map, x, y); tmp; tmp = tmp->above)
1558	if (CAN_MERGE(op,tmp)) {	1246	if (object::can_merge (op, tmp))
1559	op->nrof+=tmp->nrof;	1247	{
1560	remove_ob(tmp);	1248	op->nrof += tmp->nrof;
1561	free_object(tmp);	1249	tmp->destroy ();
1562	}	1250	}
1563	}
1564		1251
1565	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1252	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1566	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1253	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1254
1567	if (!QUERY_FLAG(op, FLAG_ALIVE))	1255	if (!QUERY_FLAG (op, FLAG_ALIVE))
1568	CLEAR_FLAG(op, FLAG_NO_STEAL);	1256	CLEAR_FLAG (op, FLAG_NO_STEAL);
1569		1257
1570	if (flag & INS_BELOW_ORIGINATOR) {	1258	if (flag & INS_BELOW_ORIGINATOR)
		1259	{
1571	if (originator->map != op->map || originator->x != op->x ||	1260	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1572	originator->y != op->y) {	1261	{
1573	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1262	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1574	abort();	1263	abort ();
1575	}	1264	}
		1265
1576	op->above = originator;	1266	op->above = originator;
1577	op->below = originator->below;	1267	op->below = originator->below;
1578	if (op->below) op->below->above = op;	1268
1579	else SET_MAP_OB(op->map, op->x, op->y, op);	1269	if (op->below)
		1270	op->below->above = op;
		1271	else
		1272	op->ms ().bot = op;
		1273
1580	/* since *below* originator, no need to update top */	1274	/* since *below* originator, no need to update top */
1581	originator->below = op;	1275	originator->below = op;
1582	} else {	1276	}
		1277	else
		1278	{
1583	/* If there are other objects, then */	1279	/* If there are other objects, then */
1584	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1280	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
1585	object *last=NULL;	1281	{
1586	/*	1282	object *last = 0;
		1283
		1284	/*
1587	* If there are multiple objects on this space, we do some trickier handling.	1285	* If there are multiple objects on this space, we do some trickier handling.
1588	* We've already dealt with merging if appropriate.	1286	* We've already dealt with merging if appropriate.
1589	* Generally, we want to put the new object on top. But if	1287	* Generally, we want to put the new object on top. But if
1590	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1288	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1591	* floor, we want to insert above that and no further.	1289	* floor, we want to insert above that and no further.
1592	* Also, if there are spell objects on this space, we stop processing	1290	* Also, if there are spell objects on this space, we stop processing
1593	* once we get to them. This reduces the need to traverse over all of	1291	* once we get to them. This reduces the need to traverse over all of
1594	* them when adding another one - this saves quite a bit of cpu time	1292	* them when adding another one - this saves quite a bit of cpu time
1595	* when lots of spells are cast in one area. Currently, it is presumed	1293	* when lots of spells are cast in one area. Currently, it is presumed
1596	* that flying non pickable objects are spell objects.	1294	* that flying non pickable objects are spell objects.
1597	*/	1295	*/
		1296	while (top)
		1297	{
		1298	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1299	floor = top;
1598		1300
1599	while (top != NULL) {	1301	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1600	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1601	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1602	if (QUERY_FLAG(top, FLAG_NO_PICK)
1603	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1604	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1605	{	1302	{
1606	/* We insert above top, so we want this object below this */	1303	/* We insert above top, so we want this object below this */
1607	top=top->below;	1304	top = top->below;
1608	break;	1305	break;
1609	}	1306	}
1610	last = top;	1307
1611	top = top->above;	1308	last = top;
1612	}	1309	top = top->above;
		1310	}
		1311
1613	/* Don't want top to be NULL, so set it to the last valid object */	1312	/* Don't want top to be NULL, so set it to the last valid object */
1614	top = last;	1313	top = last;
1615		1314
1616	/* We let update_position deal with figuring out what the space	1315	/* We let update_position deal with figuring out what the space
1617	* looks like instead of lots of conditions here.	1316	* looks like instead of lots of conditions here.
1618	* makes things faster, and effectively the same result.	1317	* makes things faster, and effectively the same result.
1619	*/	1318	*/
1620		1319
1621	/* Have object 'fall below' other objects that block view.	1320	/* Have object 'fall below' other objects that block view.
1622	* Unless those objects are exits, type 66	1321	* Unless those objects are exits, type 66
1623	* If INS_ON_TOP is used, don't do this processing	1322	* If INS_ON_TOP is used, don't do this processing
1624	* Need to find the object that in fact blocks view, otherwise	1323	* Need to find the object that in fact blocks view, otherwise
1625	* stacking is a bit odd.	1324	* stacking is a bit odd.
1626	*/	1325	*/
1627	if (!(flag & INS_ON_TOP) &&	1326	if (!(flag & INS_ON_TOP) &&
1628	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1327	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1629	(op->face && !op->face->visibility)) {	1328	{
1630	for (last=top; last != floor; last=last->below)	1329	for (last = top; last != floor; last = last->below)
1631	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1330	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1331	break;
1632	/* Check to see if we found the object that blocks view,	1332	/* Check to see if we found the object that blocks view,
1633	* and make sure we have a below pointer for it so that	1333	* and make sure we have a below pointer for it so that
1634	* we can get inserted below this one, which requires we	1334	* we can get inserted below this one, which requires we
1635	* set top to the object below us.	1335	* set top to the object below us.
1636	*/	1336	*/
1637	if (last && last->below && last != floor) top=last->below;	1337	if (last && last->below && last != floor)
1638	}	1338	top = last->below;
1639	} /* If objects on this space */	1339	}
		1340	} /* If objects on this space */
		1341
1640	if (flag & INS_MAP_LOAD)	1342	if (flag & INS_MAP_LOAD)
1641	top = GET_MAP_TOP(op->map,op->x,op->y);	1343	top = GET_MAP_TOP (op->map, op->x, op->y);
		1344
1642	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1345	if (flag & INS_ABOVE_FLOOR_ONLY)
		1346	top = floor;
1643		1347
1644	/* Top is the object that our object (op) is going to get inserted above.	1348	/* Top is the object that our object (op) is going to get inserted above.
1645	*/	1349	*/
1646		1350
1647	/* First object on this space */	1351	/* First object on this space */
1648	if (!top) {	1352	if (!top)
		1353	{
1649	op->above = GET_MAP_OB(op->map, op->x, op->y);	1354	op->above = GET_MAP_OB (op->map, op->x, op->y);
1650	if (op->above) op->above->below = op;	1355
1651	op->below = NULL;	1356	if (op->above)
1652	SET_MAP_OB(op->map, op->x, op->y, op);	1357	op->above->below = op;
1653	} else { /* get inserted into the stack above top */	1358
		1359	op->below = 0;
		1360	op->ms ().bot = op;
		1361	}
		1362	else
		1363	{ /* get inserted into the stack above top */
1654	op->above = top->above;	1364	op->above = top->above;
1655	if (op->above) op->above->below = op;	1365
		1366	if (op->above)
		1367	op->above->below = op;
		1368
1656	op->below = top;	1369	op->below = top;
1657	top->above = op;	1370	top->above = op;
1658	}	1371	}
1659	if (op->above==NULL)	1372
1660	SET_MAP_TOP(op->map,op->x, op->y, op);	1373	if (!op->above)
		1374	op->ms ().top = op;
1661	} /* else not INS_BELOW_ORIGINATOR */	1375	} /* else not INS_BELOW_ORIGINATOR */
1662		1376
1663	if(op->type==PLAYER)	1377	if (op->type == PLAYER)
		1378	{
1664	op->contr->do_los=1;	1379	op->contr->do_los = 1;
		1380	++op->map->players;
		1381	op->map->touch ();
		1382	}
1665		1383
		1384	op->map->dirty = true;
		1385
1666	/* If we have a floor, we know the player, if any, will be above	1386	/* If we have a floor, we know the player, if any, will be above
1667	* it, so save a few ticks and start from there.	1387	* it, so save a few ticks and start from there.
1668	*/	1388	*/
1669	if (!(flag & INS_MAP_LOAD))	1389	if (!(flag & INS_MAP_LOAD))
1670	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1390	if (object *pl = op->ms ().player ())
1671	if (tmp->type == PLAYER)	1391	if (pl->contr->ns)
1672	tmp->contr->socket.update_look=1;	1392	pl->contr->ns->floorbox_update ();
1673	}
1674		1393
1675	/* If this object glows, it may affect lighting conditions that are	1394	/* If this object glows, it may affect lighting conditions that are
1676	* visible to others on this map. But update_all_los is really	1395	* visible to others on this map. But update_all_los is really
1677	* an inefficient way to do this, as it means los for all players	1396	* an inefficient way to do this, as it means los for all players
1678	* on the map will get recalculated. The players could very well	1397	* on the map will get recalculated. The players could very well
1679	* be far away from this change and not affected in any way -	1398	* be far away from this change and not affected in any way -
1680	* this should get redone to only look for players within range,	1399	* this should get redone to only look for players within range,
1681	* or just updating the P_NEED_UPDATE for spaces within this area	1400	* or just updating the P_UPTODATE for spaces within this area
1682	* of effect may be sufficient.	1401	* of effect may be sufficient.
1683	*/	1402	*/
1684	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1403	if (op->map->darkness && (op->glow_radius != 0))
1685	update_all_los(op->map, op->x, op->y);	1404	update_all_los (op->map, op->x, op->y);
1686		1405
1687
1688	/* updates flags (blocked, alive, no magic, etc) for this map space */	1406	/* updates flags (blocked, alive, no magic, etc) for this map space */
1689	update_object(op,UP_OBJ_INSERT);	1407	update_object (op, UP_OBJ_INSERT);
1690		1408
		1409	INVOKE_OBJECT (INSERT, op);
1691		1410
1692	/* Don't know if moving this to the end will break anything. However,	1411	/* Don't know if moving this to the end will break anything. However,
1693	* we want to have update_look set above before calling this.	1412	* we want to have floorbox_update called before calling this.
1694	*	1413	*
1695	* check_move_on() must be after this because code called from	1414	* check_move_on() must be after this because code called from
1696	* check_move_on() depends on correct map flags (so functions like	1415	* check_move_on() depends on correct map flags (so functions like
1697	* blocked() and wall() work properly), and these flags are updated by	1416	* blocked() and wall() work properly), and these flags are updated by
1698	* update_object().	1417	* update_object().
1699	*/	1418	*/
1700		1419
1701	/* if this is not the head or flag has been passed, don't check walk on status */	1420	/* if this is not the head or flag has been passed, don't check walk on status */
1702
1703	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1421	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1422	{
1704	if (check_move_on(op, originator))	1423	if (check_move_on (op, originator))
1705	return NULL;	1424	return 0;
1706		1425
1707	/* If we are a multi part object, lets work our way through the check	1426	/* If we are a multi part object, lets work our way through the check
1708	* walk on's.	1427	* walk on's.
1709	*/	1428	*/
1710	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1429	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1711	if (check_move_on (tmp, originator))	1430	if (check_move_on (tmp, originator))
1712	return NULL;	1431	return 0;
1713	}	1432	}
		1433
1714	return op;	1434	return op;
1715	}	1435	}
1716		1436
1717	/* this function inserts an object in the map, but if it	1437	/* this function inserts an object in the map, but if it
1718	* finds an object of its own type, it'll remove that one first.	1438	* finds an object of its own type, it'll remove that one first.
1719	* op is the object to insert it under: supplies x and the map.	1439	* op is the object to insert it under: supplies x and the map.
1720	*/	1440	*/
		1441	void
1721	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1442	replace_insert_ob_in_map (const char *arch_string, object *op)
1722	object *tmp;	1443	{
1723	object *tmp1;	1444	object *tmp, *tmp1;
1724		1445
1725	/* first search for itself and remove any old instances */	1446	/* first search for itself and remove any old instances */
1726		1447
1727	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1448	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1728	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1449	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1729	remove_ob(tmp);	1450	tmp->destroy ();
1730	free_object(tmp);
1731	}
1732	}
1733		1451
1734	tmp1=arch_to_object(find_archetype(arch_string));	1452	tmp1 = arch_to_object (archetype::find (arch_string));
1735		1453
1736		1454	tmp1->x = op->x;
1737	tmp1->x = op->x; tmp1->y = op->y;	1455	tmp1->y = op->y;
1738	insert_ob_in_map(tmp1,op->map,op,0);	1456	insert_ob_in_map (tmp1, op->map, op, 0);
1739	}	1457	}
		1458
		1459	object *
		1460	object::insert_at (object *where, object *originator, int flags)
		1461	{
		1462	where->map->insert (this, where->x, where->y, originator, flags);
		1463	}
1740		1464
1741	/*	1465	/*
1742	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1466	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1743	* is returned contains nr objects, and the remaining parts contains	1467	* is returned contains nr objects, and the remaining parts contains
1744	* the rest (or is removed and freed if that number is 0).	1468	* the rest (or is removed and freed if that number is 0).
1745	* On failure, NULL is returned, and the reason put into the	1469	* On failure, NULL is returned, and the reason put into the
1746	* global static errmsg array.	1470	* global static errmsg array.
1747	*/	1471	*/
1748		1472	object *
1749	object *get_split_ob(object *orig_ob, uint32 nr) {	1473	get_split_ob (object *orig_ob, uint32 nr)
		1474	{
1750	object *newob;	1475	object *newob;
1751	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1476	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1752		1477
1753	if(orig_ob->nrof<nr) {	1478	if (orig_ob->nrof < nr)
1754	sprintf(errmsg,"There are only %d %ss.",
1755	orig_ob->nrof?orig_ob->nrof:1, orig_ob->name);
1756	return NULL;
1757	}	1479	{
		1480	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
		1481	return NULL;
		1482	}
		1483
1758	newob = object_create_clone(orig_ob);	1484	newob = object_create_clone (orig_ob);
		1485
1759	if((orig_ob->nrof-=nr)<1) {	1486	if ((orig_ob->nrof -= nr) < 1)
1760	if ( ! is_removed)	1487	orig_ob->destroy (1);
1761	remove_ob(orig_ob);
1762	free_object2(orig_ob, 1);
1763	}
1764	else if ( ! is_removed) {	1488	else if (!is_removed)
		1489	{
1765	if(orig_ob->env!=NULL)	1490	if (orig_ob->env != NULL)
1766	sub_weight (orig_ob->env,orig_ob->weight*nr);	1491	sub_weight (orig_ob->env, orig_ob->weight * nr);
1767	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1492	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1493	{
1768	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1494	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1769	LOG(llevDebug,
1770	"Error, Tried to split object whose map is not in memory.\n");	1495	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1771	return NULL;	1496	return NULL;
1772	}	1497	}
1773	}	1498	}
		1499
1774	newob->nrof=nr;	1500	newob->nrof = nr;
1775		1501
1776	return newob;	1502	return newob;
1777	}	1503	}
1778		1504
1779	/*	1505	/*
1780	* decrease_ob_nr(object, number) decreases a specified number from	1506	* decrease_ob_nr(object, number) decreases a specified number from
1781	* the amount of an object. If the amount reaches 0, the object	1507	* the amount of an object. If the amount reaches 0, the object
1782	* is subsequently removed and freed.	1508	* is subsequently removed and freed.
1783	*	1509	*
1784	* Return value: 'op' if something is left, NULL if the amount reached 0	1510	* Return value: 'op' if something is left, NULL if the amount reached 0
1785	*/	1511	*/
1786		1512
		1513	object *
1787	object *decrease_ob_nr (object *op, uint32 i)	1514	decrease_ob_nr (object *op, uint32 i)
1788	{	1515	{
1789	object *tmp;	1516	object *tmp;
1790	player *pl;
1791		1517
1792	if (i == 0) /* objects with op->nrof require this check */	1518	if (i == 0) /* objects with op->nrof require this check */
1793	return op;	1519	return op;
1794		1520
1795	if (i > op->nrof)	1521	if (i > op->nrof)
1796	i = op->nrof;	1522	i = op->nrof;
1797		1523
1798	if (QUERY_FLAG (op, FLAG_REMOVED))	1524	if (QUERY_FLAG (op, FLAG_REMOVED))
		1525	op->nrof -= i;
		1526	else if (op->env)
		1527	{
		1528	/* is this object in the players inventory, or sub container
		1529	* therein?
		1530	*/
		1531	tmp = op->in_player ();
		1532	/* nope. Is this a container the player has opened?
		1533	* If so, set tmp to that player.
		1534	* IMO, searching through all the players will mostly
		1535	* likely be quicker than following op->env to the map,
		1536	* and then searching the map for a player.
		1537	*/
		1538	if (!tmp)
		1539	for_all_players (pl)
		1540	if (pl->ob->container == op->env)
		1541	{
		1542	tmp = pl->ob;
		1543	break;
		1544	}
		1545
		1546	if (i < op->nrof)
		1547	{
		1548	sub_weight (op->env, op->weight * i);
		1549	op->nrof -= i;
		1550	if (tmp)
		1551	esrv_send_item (tmp, op);
		1552	}
		1553	else
		1554	{
		1555	op->remove ();
		1556	op->nrof = 0;
		1557	if (tmp)
		1558	esrv_del_item (tmp->contr, op->count);
		1559	}
1799	{	1560	}
		1561	else
		1562	{
		1563	object *above = op->above;
		1564
		1565	if (i < op->nrof)
1800	op->nrof -= i;	1566	op->nrof -= i;
1801	}	1567	else
1802	else if (op->env != NULL)	1568	{
1803	{	1569	op->remove ();
1804	/* is this object in the players inventory, or sub container
1805	* therein?
1806	*/
1807	tmp = is_player_inv (op->env);
1808	/* nope. Is this a container the player has opened?
1809	* If so, set tmp to that player.
1810	* IMO, searching through all the players will mostly
1811	* likely be quicker than following op->env to the map,
1812	* and then searching the map for a player.
1813	*/
1814	if (!tmp) {
1815	for (pl=first_player; pl; pl=pl->next)
1816	if (pl->ob->container == op->env) break;
1817	if (pl) tmp=pl->ob;
1818	else tmp=NULL;
1819	}
1820
1821	if (i < op->nrof) {
1822	sub_weight (op->env, op->weight * i);
1823	op->nrof -= i;	1570	op->nrof = 0;
		1571	}
		1572
		1573	/* Since we just removed op, op->above is null */
		1574	for (tmp = above; tmp; tmp = tmp->above)
		1575	if (tmp->type == PLAYER)
		1576	{
1824	if (tmp) {	1577	if (op->nrof)
1825	esrv_send_item(tmp, op);	1578	esrv_send_item (tmp, op);
1826	}	1579	else
1827	} else {
1828	remove_ob (op);
1829	op->nrof = 0;
1830	if (tmp) {
1831	esrv_del_item(tmp->contr, op->count);	1580	esrv_del_item (tmp->contr, op->count);
1832	}	1581	}
1833	}
1834	}
1835	else
1836	{	1582	}
1837	object *above = op->above;
1838		1583
1839	if (i < op->nrof) {
1840	op->nrof -= i;
1841	} else {
1842	remove_ob (op);
1843	op->nrof = 0;
1844	}
1845	/* Since we just removed op, op->above is null */
1846	for (tmp = above; tmp != NULL; tmp = tmp->above)
1847	if (tmp->type == PLAYER) {
1848	if (op->nrof)
1849	esrv_send_item(tmp, op);
1850	else
1851	esrv_del_item(tmp->contr, op->count);
1852	}
1853	}
1854
1855	if (op->nrof) {	1584	if (op->nrof)
1856	return op;	1585	return op;
1857	} else {	1586	else
1858	free_object (op);	1587	{
		1588	op->destroy ();
1859	return NULL;	1589	return 0;
1860	}	1590	}
1861	}	1591	}
1862		1592
1863	/*	1593	/*
1864	* add_weight(object, weight) adds the specified weight to an object,	1594	* add_weight(object, weight) adds the specified weight to an object,
1865	* and also updates how much the environment(s) is/are carrying.	1595	* and also updates how much the environment(s) is/are carrying.
1866	*/	1596	*/
1867		1597
		1598	void
1868	void add_weight (object *op, signed long weight) {	1599	add_weight (object *op, signed long weight)
		1600	{
1869	while (op!=NULL) {	1601	while (op != NULL)
		1602	{
1870	if (op->type == CONTAINER) {	1603	if (op->type == CONTAINER)
1871	weight=(signed long)(weight*(100-op->stats.Str)/100);	1604	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1872	}	1605
1873	op->carrying+=weight;	1606	op->carrying += weight;
1874	op=op->env;	1607	op = op->env;
1875	}	1608	}
1876	}	1609	}
1877		1610
		1611	object *
		1612	insert_ob_in_ob (object *op, object *where)
		1613	{
		1614	if (!where)
		1615	{
		1616	char *dump = dump_object (op);
		1617	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1618	free (dump);
		1619	return op;
		1620	}
		1621
		1622	if (where->head)
		1623	{
		1624	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1625	where = where->head;
		1626	}
		1627
		1628	return where->insert (op);
		1629	}
		1630
1878	/*	1631	/*
1879	* insert_ob_in_ob(op,environment):	1632	* env->insert (op)
1880	* This function inserts the object op in the linked list	1633	* This function inserts the object op in the linked list
1881	* inside the object environment.	1634	* inside the object environment.
1882	*	1635	*
1883	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1884	* the inventory at the last position or next to other objects of the same
1885	* type.
1886	* Frank: Now sorted by type, archetype and magic!
1887	*
1888	* The function returns now pointer to inserted item, and return value can	1636	* The function returns now pointer to inserted item, and return value can
1889	* be != op, if items are merged. -Tero	1637	* be != op, if items are merged. -Tero
1890	*/	1638	*/
1891		1639
1892	object *insert_ob_in_ob(object *op,object *where) {	1640	object *
		1641	object::insert (object *op)
		1642	{
1893	object *tmp, *otmp;	1643	object *tmp, *otmp;
1894		1644
1895	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1645	if (!QUERY_FLAG (op, FLAG_REMOVED))
1896	dump_object(op);	1646	op->remove ();
1897	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1647
1898	return op;
1899	}
1900	if(where==NULL) {
1901	dump_object(op);
1902	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1903	return op;
1904	}
1905	if (where->head) {
1906	LOG(llevDebug,
1907	"Warning: Tried to insert object wrong part of multipart object.\n");
1908	where = where->head;
1909	}
1910	if (op->more) {	1648	if (op->more)
		1649	{
1911	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1650	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1912	op->name, op->count);
1913	return op;	1651	return op;
1914	}	1652	}
		1653
1915	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1654	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1916	CLEAR_FLAG(op, FLAG_REMOVED);	1655	CLEAR_FLAG (op, FLAG_REMOVED);
1917	if(op->nrof) {	1656	if (op->nrof)
		1657	{
1918	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1658	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1919	if ( CAN_MERGE(tmp,op) ) {	1659	if (object::can_merge (tmp, op))
		1660	{
1920	/* return the original object and remove inserted object	1661	/* return the original object and remove inserted object
1921	(client needs the original object) */	1662	(client needs the original object) */
1922	tmp->nrof += op->nrof;	1663	tmp->nrof += op->nrof;
1923	/* Weight handling gets pretty funky. Since we are adding to	1664	/* Weight handling gets pretty funky. Since we are adding to
1924	* tmp->nrof, we need to increase the weight.	1665	* tmp->nrof, we need to increase the weight.
1925	*/	1666	*/
1926	add_weight (where, op->weight*op->nrof);	1667	add_weight (this, op->weight * op->nrof);
1927	SET_FLAG(op, FLAG_REMOVED);	1668	SET_FLAG (op, FLAG_REMOVED);
1928	free_object(op); /* free the inserted object */	1669	op->destroy (); /* free the inserted object */
1929	op = tmp;	1670	op = tmp;
1930	remove_ob (op); /* and fix old object's links */	1671	op->remove (); /* and fix old object's links */
1931	CLEAR_FLAG(op, FLAG_REMOVED);	1672	CLEAR_FLAG (op, FLAG_REMOVED);
1932	break;	1673	break;
1933	}	1674	}
1934		1675
1935	/* I assume combined objects have no inventory	1676	/* I assume combined objects have no inventory
1936	* We add the weight - this object could have just been removed	1677	* We add the weight - this object could have just been removed
1937	* (if it was possible to merge). calling remove_ob will subtract	1678	* (if it was possible to merge). calling remove_ob will subtract
1938	* the weight, so we need to add it in again, since we actually do	1679	* the weight, so we need to add it in again, since we actually do
1939	* the linking below	1680	* the linking below
1940	*/	1681	*/
1941	add_weight (where, op->weight*op->nrof);	1682	add_weight (this, op->weight * op->nrof);
		1683	}
1942	} else	1684	else
1943	add_weight (where, (op->weight+op->carrying));	1685	add_weight (this, (op->weight + op->carrying));
1944		1686
1945	otmp=is_player_inv(where);	1687	otmp = this->in_player ();
1946	if (otmp&&otmp->contr!=NULL) {	1688	if (otmp && otmp->contr)
1947	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1689	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1948	fix_player(otmp);	1690	otmp->update_stats ();
1949	}
1950		1691
1951	op->map=NULL;	1692	op->map = 0;
1952	op->env=where;	1693	op->env = this;
1953	op->above=NULL;	1694	op->above = 0;
1954	op->below=NULL;	1695	op->below = 0;
1955	op->x=0,op->y=0;	1696	op->x = 0, op->y = 0;
1956	op->ox=0,op->oy=0;
1957		1697
1958	/* reset the light list and los of the players on the map */	1698	/* reset the light list and los of the players on the map */
1959	if((op->glow_radius!=0)&&where->map)	1699	if ((op->glow_radius != 0) && map)
1960	{	1700	{
1961	#ifdef DEBUG_LIGHTS	1701	#ifdef DEBUG_LIGHTS
1962	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1702	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1963	op->name);
1964	#endif /* DEBUG_LIGHTS */	1703	#endif /* DEBUG_LIGHTS */
1965	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1704	if (map->darkness)
		1705	update_all_los (map, x, y);
1966	}	1706	}
1967		1707
1968	/* Client has no idea of ordering so lets not bother ordering it here.	1708	/* Client has no idea of ordering so lets not bother ordering it here.
1969	* It sure simplifies this function...	1709	* It sure simplifies this function...
1970	*/	1710	*/
1971	if (where->inv==NULL)	1711	if (!inv)
1972	where->inv=op;	1712	inv = op;
1973	else {	1713	else
		1714	{
1974	op->below = where->inv;	1715	op->below = inv;
1975	op->below->above = op;	1716	op->below->above = op;
1976	where->inv = op;	1717	inv = op;
1977	}	1718	}
		1719
		1720	INVOKE_OBJECT (INSERT, this);
		1721
1978	return op;	1722	return op;
1979	}	1723	}
1980		1724
1981	/*	1725	/*
1982	* Checks if any objects has a move_type that matches objects	1726	* Checks if any objects has a move_type that matches objects
…		…
1996	*	1740	*
1997	* MSW 2001-07-08: Check all objects on space, not just those below	1741	* MSW 2001-07-08: Check all objects on space, not just those below
1998	* object being inserted. insert_ob_in_map may not put new objects	1742	* object being inserted. insert_ob_in_map may not put new objects
1999	* on top.	1743	* on top.
2000	*/	1744	*/
2001		1745	int
2002	int check_move_on (object *op, object *originator)	1746	check_move_on (object *op, object *originator)
2003	{	1747	{
2004	object *tmp;	1748	object *tmp;
2005	tag_t tag;
2006	mapstruct *m=op->map;	1749	maptile *m = op->map;
2007	int x=op->x, y=op->y;	1750	int x = op->x, y = op->y;
		1751
2008	MoveType move_on, move_slow, move_block;	1752	MoveType move_on, move_slow, move_block;
2009		1753
2010	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1754	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2011	return 0;
2012
2013	tag = op->count;
2014
2015	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
2016	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
2017	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
2018
2019	/* if nothing on this space will slow op down or be applied,
2020	* no need to do checking below. have to make sure move_type
2021	* is set, as lots of objects don't have it set - we treat that
2022	* as walking.
2023	*/
2024	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
2025	return 0;
2026
2027	/* This is basically inverse logic of that below - basically,
2028	* if the object can avoid the move on or slow move, they do so,
2029	* but can't do it if the alternate movement they are using is
2030	* blocked. Logic on this seems confusing, but does seem correct.
2031	*/
2032	if ((op->move_type & ~move_on & ~move_block) != 0 &&
2033	(op->move_type & ~move_slow & ~move_block) != 0) return 0;
2034
2035	/* The objects have to be checked from top to bottom.
2036	* Hence, we first go to the top:
2037	*/
2038
2039	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&
2040	tmp->above!=NULL; tmp=tmp->above) {
2041	/* Trim the search when we find the first other spell effect
2042	* this helps performance so that if a space has 50 spell objects,
2043	* we don't need to check all of them.
2044	*/
2045	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;
2046	}
2047	for(;tmp!=NULL; tmp=tmp->below) {
2048	if (tmp == op) continue; /* Can't apply yourself */
2049
2050	/* Check to see if one of the movement types should be slowed down.
2051	* Second check makes sure that the movement types not being slowed
2052	* (~slow_move) is not blocked on this space - just because the
2053	* space doesn't slow down swimming (for example), if you can't actually
2054	* swim on that space, can't use it to avoid the penalty.
2055	*/
2056	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {
2057	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2058	((op->move_type & tmp->move_slow) &&
2059	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {
2060
2061	float diff;
2062
2063	diff = tmp->move_slow_penalty*FABS(op->speed);
2064	if (op->type == PLAYER) {
2065	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||
2066	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {
2067	diff /= 4.0;
2068	}
2069	}
2070	op->speed_left -= diff;
2071	}
2072	}
2073
2074	/* Basically same logic as above, except now for actual apply. */
2075	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2076	((op->move_type & tmp->move_on) &&
2077	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {
2078
2079	move_apply(tmp, op, originator);
2080	if (was_destroyed (op, tag))
2081	return 1;
2082
2083	/* what the person/creature stepped onto has moved the object
2084	* someplace new. Don't process any further - if we did,
2085	* have a feeling strange problems would result.
2086	*/
2087	if (op->map != m || op->x != x || op->y != y) return 0;
2088	}
2089	}
2090	return 0;	1755	return 0;
		1756
		1757	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1758	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		1759	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		1760
		1761	/* if nothing on this space will slow op down or be applied,
		1762	* no need to do checking below. have to make sure move_type
		1763	* is set, as lots of objects don't have it set - we treat that
		1764	* as walking.
		1765	*/
		1766	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		1767	return 0;
		1768
		1769	/* This is basically inverse logic of that below - basically,
		1770	* if the object can avoid the move on or slow move, they do so,
		1771	* but can't do it if the alternate movement they are using is
		1772	* blocked. Logic on this seems confusing, but does seem correct.
		1773	*/
		1774	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		1775	return 0;
		1776
		1777	/* The objects have to be checked from top to bottom.
		1778	* Hence, we first go to the top:
		1779	*/
		1780
		1781	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above)
		1782	{
		1783	/* Trim the search when we find the first other spell effect
		1784	* this helps performance so that if a space has 50 spell objects,
		1785	* we don't need to check all of them.
		1786	*/
		1787	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1788	break;
		1789	}
		1790
		1791	for (; tmp; tmp = tmp->below)
		1792	{
		1793	if (tmp == op)
		1794	continue; /* Can't apply yourself */
		1795
		1796	/* Check to see if one of the movement types should be slowed down.
		1797	* Second check makes sure that the movement types not being slowed
		1798	* (~slow_move) is not blocked on this space - just because the
		1799	* space doesn't slow down swimming (for example), if you can't actually
		1800	* swim on that space, can't use it to avoid the penalty.
		1801	*/
		1802	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1803	{
		1804	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		1805	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1806	{
		1807
		1808	float
		1809	diff = tmp->move_slow_penalty * FABS (op->speed);
		1810
		1811	if (op->type == PLAYER)
		1812	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		1813	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		1814	diff /= 4.0;
		1815
		1816	op->speed_left -= diff;
		1817	}
		1818	}
		1819
		1820	/* Basically same logic as above, except now for actual apply. */
		1821	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		1822	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		1823	{
		1824	move_apply (tmp, op, originator);
		1825
		1826	if (op->destroyed ())
		1827	return 1;
		1828
		1829	/* what the person/creature stepped onto has moved the object
		1830	* someplace new. Don't process any further - if we did,
		1831	* have a feeling strange problems would result.
		1832	*/
		1833	if (op->map != m || op->x != x || op->y != y)
		1834	return 0;
		1835	}
		1836	}
		1837
		1838	return 0;
2091	}	1839	}
2092		1840
2093	/*	1841	/*
2094	* present_arch(arch, map, x, y) searches for any objects with	1842	* present_arch(arch, map, x, y) searches for any objects with
2095	* a matching archetype at the given map and coordinates.	1843	* a matching archetype at the given map and coordinates.
2096	* The first matching object is returned, or NULL if none.	1844	* The first matching object is returned, or NULL if none.
2097	*/	1845	*/
2098		1846	object *
2099	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1847	present_arch (const archetype *at, maptile *m, int x, int y)
2100	object *tmp;	1848	{
2101	if(m==NULL || out_of_map(m,x,y)) {	1849	if (m == NULL || out_of_map (m, x, y))
		1850	{
2102	LOG(llevError,"Present_arch called outside map.\n");	1851	LOG (llevError, "Present_arch called outside map.\n");
2103	return NULL;	1852	return NULL;
2104	}	1853	}
		1854
2105	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1855	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2106	if(tmp->arch == at)	1856	if (tmp->arch == at)
2107	return tmp;	1857	return tmp;
		1858
2108	return NULL;	1859	return NULL;
2109	}	1860	}
2110		1861
2111	/*	1862	/*
2112	* present(type, map, x, y) searches for any objects with	1863	* present(type, map, x, y) searches for any objects with
2113	* a matching type variable at the given map and coordinates.	1864	* a matching type variable at the given map and coordinates.
2114	* The first matching object is returned, or NULL if none.	1865	* The first matching object is returned, or NULL if none.
2115	*/	1866	*/
2116		1867	object *
2117	object *present(unsigned char type,mapstruct *m, int x,int y) {	1868	present (unsigned char type, maptile *m, int x, int y)
2118	object *tmp;	1869	{
2119	if(out_of_map(m,x,y)) {	1870	if (out_of_map (m, x, y))
		1871	{
2120	LOG(llevError,"Present called outside map.\n");	1872	LOG (llevError, "Present called outside map.\n");
2121	return NULL;	1873	return NULL;
2122	}	1874	}
		1875
2123	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1876	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2124	if(tmp->type==type)	1877	if (tmp->type == type)
2125	return tmp;	1878	return tmp;
		1879
2126	return NULL;	1880	return NULL;
2127	}	1881	}
2128		1882
2129	/*	1883	/*
2130	* present_in_ob(type, object) searches for any objects with	1884	* present_in_ob(type, object) searches for any objects with
2131	* a matching type variable in the inventory of the given object.	1885	* a matching type variable in the inventory of the given object.
2132	* The first matching object is returned, or NULL if none.	1886	* The first matching object is returned, or NULL if none.
2133	*/	1887	*/
2134		1888	object *
2135	object *present_in_ob(unsigned char type, const object *op) {	1889	present_in_ob (unsigned char type, const object *op)
2136	object *tmp;	1890	{
2137	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1891	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2138	if(tmp->type==type)	1892	if (tmp->type == type)
2139	return tmp;	1893	return tmp;
		1894
2140	return NULL;	1895	return NULL;
2141	}	1896	}
2142		1897
2143	/*	1898	/*
2144	* present_in_ob (type, str, object) searches for any objects with	1899	* present_in_ob (type, str, object) searches for any objects with
…		…
2152	* str is the string to match against. Note that we match against	1907	* str is the string to match against. Note that we match against
2153	* the object name, not the archetype name. this is so that the	1908	* the object name, not the archetype name. this is so that the
2154	* spell code can use one object type (force), but change it's name	1909	* spell code can use one object type (force), but change it's name
2155	* to be unique.	1910	* to be unique.
2156	*/	1911	*/
2157		1912	object *
2158	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1913	present_in_ob_by_name (int type, const char *str, const object *op)
2159	object *tmp;	1914	{
2160
2161	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1915	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2162	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1916	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2163	return tmp;	1917	return tmp;
2164	}	1918
2165	return NULL;	1919	return 0;
2166	}	1920	}
2167		1921
2168	/*	1922	/*
2169	* present_arch_in_ob(archetype, object) searches for any objects with	1923	* present_arch_in_ob(archetype, object) searches for any objects with
2170	* a matching archetype in the inventory of the given object.	1924	* a matching archetype in the inventory of the given object.
2171	* The first matching object is returned, or NULL if none.	1925	* The first matching object is returned, or NULL if none.
2172	*/	1926	*/
2173		1927	object *
2174	object *present_arch_in_ob(const archetype *at, const object *op) {	1928	present_arch_in_ob (const archetype *at, const object *op)
2175	object *tmp;	1929	{
2176	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1930	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2177	if( tmp->arch == at)	1931	if (tmp->arch == at)
2178	return tmp;	1932	return tmp;
		1933
2179	return NULL;	1934	return NULL;
2180	}	1935	}
2181		1936
2182	/*	1937	/*
2183	* activate recursively a flag on an object inventory	1938	* activate recursively a flag on an object inventory
2184	*/	1939	*/
		1940	void
2185	void flag_inv(object*op, int flag){	1941	flag_inv (object *op, int flag)
2186	object *tmp;	1942	{
2187	if(op->inv)	1943	if (op->inv)
2188	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1944	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1945	{
2189	SET_FLAG(tmp, flag);	1946	SET_FLAG (tmp, flag);
2190	flag_inv(tmp,flag);	1947	flag_inv (tmp, flag);
2191	}	1948	}
		1949	}
		1950
2192	}/*	1951	/*
2193	* desactivate recursively a flag on an object inventory	1952	* deactivate recursively a flag on an object inventory
2194	*/	1953	*/
		1954	void
2195	void unflag_inv(object*op, int flag){	1955	unflag_inv (object *op, int flag)
2196	object *tmp;	1956	{
2197	if(op->inv)	1957	if (op->inv)
2198	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1958	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1959	{
2199	CLEAR_FLAG(tmp, flag);	1960	CLEAR_FLAG (tmp, flag);
2200	unflag_inv(tmp,flag);	1961	unflag_inv (tmp, flag);
2201	}	1962	}
2202	}	1963	}
2203		1964
2204	/*	1965	/*
2205	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1966	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2206	* all it's inventory (recursively).	1967	* all it's inventory (recursively).
2207	* If checksums are used, a player will get set_cheat called for	1968	* If checksums are used, a player will get set_cheat called for
2208	* him/her-self and all object carried by a call to this function.	1969	* him/her-self and all object carried by a call to this function.
2209	*/	1970	*/
2210		1971	void
2211	void set_cheat(object *op) {	1972	set_cheat (object *op)
		1973	{
2212	SET_FLAG(op, FLAG_WAS_WIZ);	1974	SET_FLAG (op, FLAG_WAS_WIZ);
2213	flag_inv(op, FLAG_WAS_WIZ);	1975	flag_inv (op, FLAG_WAS_WIZ);
2214	}	1976	}
2215		1977
2216	/*	1978	/*
2217	* find_free_spot(object, map, x, y, start, stop) will search for	1979	* find_free_spot(object, map, x, y, start, stop) will search for
2218	* a spot at the given map and coordinates which will be able to contain	1980	* a spot at the given map and coordinates which will be able to contain
…		…
2232	* because arch_blocked (now ob_blocked) needs to know the movement type	1994	* because arch_blocked (now ob_blocked) needs to know the movement type
2233	* to know if the space in question will block the object. We can't use	1995	* to know if the space in question will block the object. We can't use
2234	* the archetype because that isn't correct if the monster has been	1996	* the archetype because that isn't correct if the monster has been
2235	* customized, changed states, etc.	1997	* customized, changed states, etc.
2236	*/	1998	*/
2237		1999	int
2238	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2000	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2001	{
2239	int i,index=0, flag;	2002	int index = 0, flag;
2240	static int altern[SIZEOFFREE];	2003	int altern[SIZEOFFREE];
2241		2004
2242	for(i=start;i<stop;i++) {	2005	for (int i = start; i < stop; i++)
		2006	{
2243	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2007	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2244	if(!flag)	2008	if (!flag)
2245	altern[index++]=i;	2009	altern [index++] = i;
2246		2010
2247	/* Basically, if we find a wall on a space, we cut down the search size.	2011	/* Basically, if we find a wall on a space, we cut down the search size.
2248	* In this way, we won't return spaces that are on another side of a wall.	2012	* In this way, we won't return spaces that are on another side of a wall.
2249	* This mostly work, but it cuts down the search size in all directions -	2013	* This mostly work, but it cuts down the search size in all directions -
2250	* if the space being examined only has a wall to the north and empty	2014	* if the space being examined only has a wall to the north and empty
2251	* spaces in all the other directions, this will reduce the search space	2015	* spaces in all the other directions, this will reduce the search space
2252	* to only the spaces immediately surrounding the target area, and	2016	* to only the spaces immediately surrounding the target area, and
2253	* won't look 2 spaces south of the target space.	2017	* won't look 2 spaces south of the target space.
2254	*/	2018	*/
2255	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2019	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2256	stop=maxfree[i];	2020	stop = maxfree[i];
2257	}	2021	}
2258	if(!index) return -1;	2022
		2023	if (!index)
		2024	return -1;
		2025
2259	return altern[RANDOM()%index];	2026	return altern[RANDOM () % index];
2260	}	2027	}
2261		2028
2262	/*	2029	/*
2263	* find_first_free_spot(archetype, mapstruct, x, y) works like	2030	* find_first_free_spot(archetype, maptile, x, y) works like
2264	* find_free_spot(), but it will search max number of squares.	2031	* find_free_spot(), but it will search max number of squares.
2265	* But it will return the first available spot, not a random choice.	2032	* But it will return the first available spot, not a random choice.
2266	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2033	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2267	*/	2034	*/
2268		2035	int
2269	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2036	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2270	int i;	2037	{
2271	for(i=0;i<SIZEOFFREE;i++) {	2038	for (int i = 0; i < SIZEOFFREE; i++)
2272	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2039	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2273	return i;	2040	return i;
2274	}	2041
2275	return -1;	2042	return -1;
2276	}	2043	}
2277		2044
2278	/*	2045	/*
2279	* The function permute(arr, begin, end) randomly reorders the array	2046	* The function permute(arr, begin, end) randomly reorders the array
2280	* arr[begin..end-1].	2047	* arr[begin..end-1].
		2048	* now uses a fisher-yates shuffle, old permute was broken
2281	*/	2049	*/
		2050	static void
2282	static void permute(int *arr, int begin, int end)	2051	permute (int *arr, int begin, int end)
2283	{	2052	{
2284	int i, j, tmp, len;	2053	arr += begin;
		2054	end -= begin;
2285		2055
2286	len = end-begin;	2056	while (--end)
2287	for(i = begin; i < end; i++)	2057	swap (arr [end], arr [RANDOM () % (end + 1)]);
2288	{
2289	j = begin+RANDOM()%len;
2290
2291	tmp = arr[i];
2292	arr[i] = arr[j];
2293	arr[j] = tmp;
2294	}
2295	}	2058	}
2296		2059
2297	/* new function to make monster searching more efficient, and effective!	2060	/* new function to make monster searching more efficient, and effective!
2298	* This basically returns a randomized array (in the passed pointer) of	2061	* This basically returns a randomized array (in the passed pointer) of
2299	* the spaces to find monsters. In this way, it won't always look for	2062	* the spaces to find monsters. In this way, it won't always look for
2300	* monsters to the north first. However, the size of the array passed	2063	* monsters to the north first. However, the size of the array passed
2301	* covers all the spaces, so within that size, all the spaces within	2064	* covers all the spaces, so within that size, all the spaces within
2302	* the 3x3 area will be searched, just not in a predictable order.	2065	* the 3x3 area will be searched, just not in a predictable order.
2303	*/	2066	*/
		2067	void
2304	void get_search_arr(int *search_arr)	2068	get_search_arr (int *search_arr)
2305	{	2069	{
2306	int i;	2070	int i;
2307		2071
2308	for(i = 0; i < SIZEOFFREE; i++)	2072	for (i = 0; i < SIZEOFFREE; i++)
2309	{
2310	search_arr[i] = i;	2073	search_arr[i] = i;
2311	}
2312		2074
2313	permute(search_arr, 1, SIZEOFFREE1+1);	2075	permute (search_arr, 1, SIZEOFFREE1 + 1);
2314	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2076	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2315	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2077	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2316	}	2078	}
2317		2079
2318	/*	2080	/*
2319	* find_dir(map, x, y, exclude) will search some close squares in the	2081	* find_dir(map, x, y, exclude) will search some close squares in the
2320	* given map at the given coordinates for live objects.	2082	* given map at the given coordinates for live objects.
…		…
2325	* Perhaps incorrectly, but I'm making the assumption that exclude	2087	* Perhaps incorrectly, but I'm making the assumption that exclude
2326	* is actually want is going to try and move there. We need this info	2088	* is actually want is going to try and move there. We need this info
2327	* because we have to know what movement the thing looking to move	2089	* because we have to know what movement the thing looking to move
2328	* there is capable of.	2090	* there is capable of.
2329	*/	2091	*/
2330		2092	int
2331	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2093	find_dir (maptile *m, int x, int y, object *exclude)
		2094	{
2332	int i,max=SIZEOFFREE, mflags;	2095	int i, max = SIZEOFFREE, mflags;
		2096
2333	sint16 nx, ny;	2097	sint16 nx, ny;
2334	object *tmp;	2098	object *tmp;
2335	mapstruct *mp;	2099	maptile *mp;
		2100
2336	MoveType blocked, move_type;	2101	MoveType blocked, move_type;
2337		2102
2338	if (exclude && exclude->head) {	2103	if (exclude && exclude->head)
		2104	{
2339	exclude = exclude->head;	2105	exclude = exclude->head;
2340	move_type = exclude->move_type;	2106	move_type = exclude->move_type;
2341	} else {	2107	}
		2108	else
		2109	{
2342	/* If we don't have anything, presume it can use all movement types. */	2110	/* If we don't have anything, presume it can use all movement types. */
2343	move_type=MOVE_ALL;	2111	move_type = MOVE_ALL;
		2112	}
		2113
		2114	for (i = 1; i < max; i++)
2344	}	2115	{
2345		2116	mp = m;
2346	for(i=1;i<max;i++) {
2347	mp = m;
2348	nx = x + freearr_x[i];	2117	nx = x + freearr_x[i];
2349	ny = y + freearr_y[i];	2118	ny = y + freearr_y[i];
2350		2119
2351	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2120	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2121
2352	if (mflags & P_OUT_OF_MAP) {	2122	if (mflags & P_OUT_OF_MAP)
2353	max = maxfree[i];	2123	max = maxfree[i];
2354	} else {	2124	else
2355	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2125	{
		2126	mapspace &ms = mp->at (nx, ny);
2356		2127
		2128	blocked = ms.move_block;
		2129
2357	if ((move_type & blocked) == move_type) {	2130	if ((move_type & blocked) == move_type)
2358	max=maxfree[i];	2131	max = maxfree[i];
2359	} else if (mflags & P_IS_ALIVE) {	2132	else if (mflags & P_IS_ALIVE)
2360	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2133	{
2361	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2134	for (tmp = ms.bot; tmp; tmp = tmp->above)
		2135	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2362	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2136	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2363	break;	2137	break;
2364	}	2138
2365	}	2139	if (tmp)
2366	if(tmp) {
2367	return freedir[i];	2140	return freedir[i];
2368	}	2141	}
		2142	}
2369	}	2143	}
2370	}	2144
2371	}
2372	return 0;	2145	return 0;
2373	}	2146	}
2374		2147
2375	/*	2148	/*
2376	* distance(object 1, object 2) will return the square of the	2149	* distance(object 1, object 2) will return the square of the
2377	* distance between the two given objects.	2150	* distance between the two given objects.
2378	*/	2151	*/
2379		2152	int
2380	int distance(const object *ob1, const object *ob2) {	2153	distance (const object *ob1, const object *ob2)
2381	int i;	2154	{
2382	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2155	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2383	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2384	return i;
2385	}	2156	}
2386		2157
2387	/*	2158	/*
2388	* find_dir_2(delta-x,delta-y) will return a direction in which	2159	* find_dir_2(delta-x,delta-y) will return a direction in which
2389	* an object which has subtracted the x and y coordinates of another	2160	* an object which has subtracted the x and y coordinates of another
2390	* object, needs to travel toward it.	2161	* object, needs to travel toward it.
2391	*/	2162	*/
2392		2163	int
2393	int find_dir_2(int x, int y) {	2164	find_dir_2 (int x, int y)
		2165	{
2394	int q;	2166	int q;
2395		2167
2396	if(y)	2168	if (y)
2397	q=x*100/y;	2169	q = x * 100 / y;
2398	else if (x)	2170	else if (x)
2399	q= -300*x;	2171	q = -300 * x;
2400	else	2172	else
2401	return 0;	2173	return 0;
2402		2174
2403	if(y>0) {	2175	if (y > 0)
		2176	{
2404	if(q < -242)	2177	if (q < -242)
2405	return 3 ;	2178	return 3;
2406	if (q < -41)	2179	if (q < -41)
2407	return 2 ;	2180	return 2;
2408	if (q < 41)	2181	if (q < 41)
2409	return 1 ;	2182	return 1;
2410	if (q < 242)	2183	if (q < 242)
2411	return 8 ;	2184	return 8;
2412	return 7 ;	2185	return 7;
2413	}	2186	}
2414		2187
2415	if (q < -242)	2188	if (q < -242)
2416	return 7 ;	2189	return 7;
2417	if (q < -41)	2190	if (q < -41)
2418	return 6 ;	2191	return 6;
2419	if (q < 41)	2192	if (q < 41)
2420	return 5 ;	2193	return 5;
2421	if (q < 242)	2194	if (q < 242)
2422	return 4 ;	2195	return 4;
2423		2196
2424	return 3 ;	2197	return 3;
2425	}	2198	}
2426		2199
2427	/*	2200	/*
2428	* absdir(int): Returns a number between 1 and 8, which represent	2201	* absdir(int): Returns a number between 1 and 8, which represent
2429	* the "absolute" direction of a number (it actually takes care of	2202	* the "absolute" direction of a number (it actually takes care of
2430	* "overflow" in previous calculations of a direction).	2203	* "overflow" in previous calculations of a direction).
2431	*/	2204	*/
2432		2205
		2206	int
2433	int absdir(int d) {	2207	absdir (int d)
2434	while(d<1) d+=8;	2208	{
2435	while(d>8) d-=8;	2209	while (d < 1)
		2210	d += 8;
		2211
		2212	while (d > 8)
		2213	d -= 8;
		2214
2436	return d;	2215	return d;
2437	}	2216	}
2438		2217
2439	/*	2218	/*
2440	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2219	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2441	* between two directions (which are expected to be absolute (see absdir())	2220	* between two directions (which are expected to be absolute (see absdir())
2442	*/	2221	*/
2443		2222
		2223	int
2444	int dirdiff(int dir1, int dir2) {	2224	dirdiff (int dir1, int dir2)
		2225	{
2445	int d;	2226	int d;
		2227
2446	d = abs(dir1 - dir2);	2228	d = abs (dir1 - dir2);
2447	if(d>4)	2229	if (d > 4)
2448	d = 8 - d;	2230	d = 8 - d;
		2231
2449	return d;	2232	return d;
2450	}	2233	}
2451		2234
2452	/* peterm:	2235	/* peterm:
2453	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2236	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2456	* This basically means that if direction is 15, then it could either go	2239	* This basically means that if direction is 15, then it could either go
2457	* direction 4, 14, or 16 to get back to where we are.	2240	* direction 4, 14, or 16 to get back to where we are.
2458	* Moved from spell_util.c to object.c with the other related direction	2241	* Moved from spell_util.c to object.c with the other related direction
2459	* functions.	2242	* functions.
2460	*/	2243	*/
2461
2462	int reduction_dir[SIZEOFFREE][3] = {	2244	int reduction_dir[SIZEOFFREE][3] = {
2463	{0,0,0}, /* 0 */	2245	{0, 0, 0}, /* 0 */
2464	{0,0,0}, /* 1 */	2246	{0, 0, 0}, /* 1 */
2465	{0,0,0}, /* 2 */	2247	{0, 0, 0}, /* 2 */
2466	{0,0,0}, /* 3 */	2248	{0, 0, 0}, /* 3 */
2467	{0,0,0}, /* 4 */	2249	{0, 0, 0}, /* 4 */
2468	{0,0,0}, /* 5 */	2250	{0, 0, 0}, /* 5 */
2469	{0,0,0}, /* 6 */	2251	{0, 0, 0}, /* 6 */
2470	{0,0,0}, /* 7 */	2252	{0, 0, 0}, /* 7 */
2471	{0,0,0}, /* 8 */	2253	{0, 0, 0}, /* 8 */
2472	{8,1,2}, /* 9 */	2254	{8, 1, 2}, /* 9 */
2473	{1,2,-1}, /* 10 */	2255	{1, 2, -1}, /* 10 */
2474	{2,10,12}, /* 11 */	2256	{2, 10, 12}, /* 11 */
2475	{2,3,-1}, /* 12 */	2257	{2, 3, -1}, /* 12 */
2476	{2,3,4}, /* 13 */	2258	{2, 3, 4}, /* 13 */
2477	{3,4,-1}, /* 14 */	2259	{3, 4, -1}, /* 14 */
2478	{4,14,16}, /* 15 */	2260	{4, 14, 16}, /* 15 */
2479	{5,4,-1}, /* 16 */	2261	{5, 4, -1}, /* 16 */
2480	{4,5,6}, /* 17 */	2262	{4, 5, 6}, /* 17 */
2481	{6,5,-1}, /* 18 */	2263	{6, 5, -1}, /* 18 */
2482	{6,20,18}, /* 19 */	2264	{6, 20, 18}, /* 19 */
2483	{7,6,-1}, /* 20 */	2265	{7, 6, -1}, /* 20 */
2484	{6,7,8}, /* 21 */	2266	{6, 7, 8}, /* 21 */
2485	{7,8,-1}, /* 22 */	2267	{7, 8, -1}, /* 22 */
2486	{8,22,24}, /* 23 */	2268	{8, 22, 24}, /* 23 */
2487	{8,1,-1}, /* 24 */	2269	{8, 1, -1}, /* 24 */
2488	{24,9,10}, /* 25 */	2270	{24, 9, 10}, /* 25 */
2489	{9,10,-1}, /* 26 */	2271	{9, 10, -1}, /* 26 */
2490	{10,11,-1}, /* 27 */	2272	{10, 11, -1}, /* 27 */
2491	{27,11,29}, /* 28 */	2273	{27, 11, 29}, /* 28 */
2492	{11,12,-1}, /* 29 */	2274	{11, 12, -1}, /* 29 */
2493	{12,13,-1}, /* 30 */	2275	{12, 13, -1}, /* 30 */
2494	{12,13,14}, /* 31 */	2276	{12, 13, 14}, /* 31 */
2495	{13,14,-1}, /* 32 */	2277	{13, 14, -1}, /* 32 */
2496	{14,15,-1}, /* 33 */	2278	{14, 15, -1}, /* 33 */
2497	{33,15,35}, /* 34 */	2279	{33, 15, 35}, /* 34 */
2498	{16,15,-1}, /* 35 */	2280	{16, 15, -1}, /* 35 */
2499	{17,16,-1}, /* 36 */	2281	{17, 16, -1}, /* 36 */
2500	{18,17,16}, /* 37 */	2282	{18, 17, 16}, /* 37 */
2501	{18,17,-1}, /* 38 */	2283	{18, 17, -1}, /* 38 */
2502	{18,19,-1}, /* 39 */	2284	{18, 19, -1}, /* 39 */
2503	{41,19,39}, /* 40 */	2285	{41, 19, 39}, /* 40 */
2504	{19,20,-1}, /* 41 */	2286	{19, 20, -1}, /* 41 */
2505	{20,21,-1}, /* 42 */	2287	{20, 21, -1}, /* 42 */
2506	{20,21,22}, /* 43 */	2288	{20, 21, 22}, /* 43 */
2507	{21,22,-1}, /* 44 */	2289	{21, 22, -1}, /* 44 */
2508	{23,22,-1}, /* 45 */	2290	{23, 22, -1}, /* 45 */
2509	{45,47,23}, /* 46 */	2291	{45, 47, 23}, /* 46 */
2510	{23,24,-1}, /* 47 */	2292	{23, 24, -1}, /* 47 */
2511	{24,9,-1}}; /* 48 */	2293	{24, 9, -1}
		2294	}; /* 48 */
2512		2295
2513	/* Recursive routine to step back and see if we can	2296	/* Recursive routine to step back and see if we can
2514	* find a path to that monster that we found. If not,	2297	* find a path to that monster that we found. If not,
2515	* we don't bother going toward it. Returns 1 if we	2298	* we don't bother going toward it. Returns 1 if we
2516	* can see a direct way to get it	2299	* can see a direct way to get it
2517	* Modified to be map tile aware -.MSW	2300	* Modified to be map tile aware -.MSW
2518	*/	2301	*/
2519		2302	int
2520
2521	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2303	can_see_monsterP (maptile *m, int x, int y, int dir)
		2304	{
2522	sint16 dx, dy;	2305	sint16 dx, dy;
2523	int mflags;	2306	int mflags;
2524		2307
		2308	if (dir < 0)
2525	if(dir<0) return 0; /* exit condition: invalid direction */	2309	return 0; /* exit condition: invalid direction */
2526		2310
2527	dx = x + freearr_x[dir];	2311	dx = x + freearr_x[dir];
2528	dy = y + freearr_y[dir];	2312	dy = y + freearr_y[dir];
2529		2313
2530	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2314	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2531		2315
2532	/* This functional arguably was incorrect before - it was	2316	/* This functional arguably was incorrect before - it was
2533	* checking for P_WALL - that was basically seeing if	2317	* checking for P_WALL - that was basically seeing if
2534	* we could move to the monster - this is being more	2318	* we could move to the monster - this is being more
2535	* literal on if we can see it. To know if we can actually	2319	* literal on if we can see it. To know if we can actually
2536	* move to the monster, we'd need the monster passed in or	2320	* move to the monster, we'd need the monster passed in or
2537	* at least its move type.	2321	* at least its move type.
2538	*/	2322	*/
2539	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2323	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2324	return 0;
2540		2325
2541	/* yes, can see. */	2326	/* yes, can see. */
2542	if(dir < 9) return 1;	2327	if (dir < 9)
		2328	return 1;
		2329
2543	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2330	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2544	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2331	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2545	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2332	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2546	}	2333	}
2547		2334
2548
2549
2550	/*	2335	/*
2551	* can_pick(picker, item): finds out if an object is possible to be	2336	* can_pick(picker, item): finds out if an object is possible to be
2552	* picked up by the picker. Returnes 1 if it can be	2337	* picked up by the picker. Returnes 1 if it can be
2553	* picked up, otherwise 0.	2338	* picked up, otherwise 0.
2554	*	2339	*
…		…
2556	* core dumps if they do.	2341	* core dumps if they do.
2557	*	2342	*
2558	* Add a check so we can't pick up invisible objects (0.93.8)	2343	* Add a check so we can't pick up invisible objects (0.93.8)
2559	*/	2344	*/
2560		2345
		2346	int
2561	int can_pick(const object *who, const object *item) {	2347	can_pick (const object *who, const object *item)
		2348	{
2562	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2349	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2563	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2350	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2564	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2351	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2565	(who->type==PLAYER||item->weight<who->weight/3));
2566	}	2352	}
2567
2568		2353
2569	/*	2354	/*
2570	* create clone from object to another	2355	* create clone from object to another
2571	*/	2356	*/
		2357	object *
2572	object *object_create_clone (object *asrc) {	2358	object_create_clone (object *asrc)
		2359	{
2573	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2360	object *dst = 0, *tmp, *src, *part, *prev, *item;
2574		2361
2575	if(!asrc) return NULL;	2362	if (!asrc)
		2363	return 0;
		2364
2576	src = asrc;	2365	src = asrc;
2577	if(src->head)	2366	if (src->head)
2578	src = src->head;	2367	src = src->head;
2579		2368
2580	prev = NULL;	2369	prev = 0;
2581	for(part = src; part; part = part->more) {	2370	for (part = src; part; part = part->more)
2582	tmp = get_object();	2371	{
2583	copy_object(part,tmp);	2372	tmp = part->clone ();
2584	tmp->x -= src->x;	2373	tmp->x -= src->x;
2585	tmp->y -= src->y;	2374	tmp->y -= src->y;
		2375
2586	if(!part->head) {	2376	if (!part->head)
		2377	{
2587	dst = tmp;	2378	dst = tmp;
2588	tmp->head = NULL;	2379	tmp->head = 0;
		2380	}
2589	} else {	2381	else
2590	tmp->head = dst;	2382	tmp->head = dst;
2591	}	2383
2592	tmp->more = NULL;	2384	tmp->more = 0;
		2385
2593	if(prev)	2386	if (prev)
2594	prev->more = tmp;	2387	prev->more = tmp;
		2388
2595	prev = tmp;	2389	prev = tmp;
2596	}	2390	}
2597	/*** copy inventory ***/	2391
2598	for(item = src->inv; item; item = item->below) {	2392	for (item = src->inv; item; item = item->below)
2599	(void) insert_ob_in_ob(object_create_clone(item),dst);	2393	insert_ob_in_ob (object_create_clone (item), dst);
2600	}
2601		2394
2602	return dst;	2395	return dst;
2603	}
2604
2605	/* return true if the object was destroyed, 0 otherwise */
2606	int was_destroyed (const object *op, tag_t old_tag)
2607	{
2608	/* checking for FLAG_FREED isn't necessary, but makes this function more
2609	* robust */
2610	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2611	}	2396	}
2612		2397
2613	/* GROS - Creates an object using a string representing its content. */	2398	/* GROS - Creates an object using a string representing its content. */
2614	/* Basically, we save the content of the string to a temp file, then call */	2399	/* Basically, we save the content of the string to a temp file, then call */
2615	/* load_object on it. I admit it is a highly inefficient way to make things, */	2400	/* load_object on it. I admit it is a highly inefficient way to make things, */
2616	/* but it was simple to make and allows reusing the load_object function. */	2401	/* but it was simple to make and allows reusing the load_object function. */
2617	/* Remember not to use load_object_str in a time-critical situation. */	2402	/* Remember not to use load_object_str in a time-critical situation. */
2618	/* Also remember that multiparts objects are not supported for now. */	2403	/* Also remember that multiparts objects are not supported for now. */
2619		2404	object *
2620	object* load_object_str(const char *obstr)	2405	load_object_str (const char *obstr)
2621	{	2406	{
2622	object *op;	2407	object *op;
2623	FILE *tempfile;
2624	char filename[MAX_BUF];	2408	char filename[MAX_BUF];
		2409
2625	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2410	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
		2411
2626	tempfile=fopen(filename,"w");	2412	FILE *tempfile = fopen (filename, "w");
		2413
2627	if (tempfile == NULL)	2414	if (tempfile == NULL)
2628	{	2415	{
2629	LOG(llevError,"Error - Unable to access load object temp file\n");	2416	LOG (llevError, "Error - Unable to access load object temp file\n");
2630	return NULL;	2417	return NULL;
2631	};	2418	}
		2419
2632	fprintf(tempfile,obstr);	2420	fprintf (tempfile, obstr);
2633	fclose(tempfile);	2421	fclose (tempfile);
2634		2422
2635	op=get_object();	2423	op = object::create ();
2636		2424
2637	tempfile=fopen(filename,"r");	2425	object_thawer thawer (filename);
2638	if (tempfile == NULL)	2426
2639	{	2427	if (thawer)
2640	LOG(llevError,"Error - Unable to read object temp file\n");	2428	load_object (thawer, op, 0);
2641	return NULL;	2429
2642	};
2643	load_object(tempfile,op,LO_NEWFILE,0);
2644	LOG(llevDebug," load str completed, object=%s\n",op->name);	2430	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2645	CLEAR_FLAG(op,FLAG_REMOVED);	2431	CLEAR_FLAG (op, FLAG_REMOVED);
2646	fclose(tempfile);	2432
2647	return op;	2433	return op;
2648	}	2434	}
2649		2435
2650	/* This returns the first object in who's inventory that	2436	/* This returns the first object in who's inventory that
2651	* has the same type and subtype match.	2437	* has the same type and subtype match.
2652	* returns NULL if no match.	2438	* returns NULL if no match.
2653	*/	2439	*/
		2440	object *
2654	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2441	find_obj_by_type_subtype (const object *who, int type, int subtype)
2655	{	2442	{
2656	object *tmp;
2657
2658	for (tmp=who->inv; tmp; tmp=tmp->below)	2443	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2659	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2444	if (tmp->type == type && tmp->subtype == subtype)
		2445	return tmp;
2660		2446
2661	return NULL;	2447	return 0;
2662	}	2448	}
2663		2449
2664	/* If ob has a field named key, return the link from the list,	2450	/* If ob has a field named key, return the link from the list,
2665	* otherwise return NULL.	2451	* otherwise return NULL.
2666	*	2452	*
2667	* key must be a passed in shared string - otherwise, this won't	2453	* key must be a passed in shared string - otherwise, this won't
2668	* do the desired thing.	2454	* do the desired thing.
2669	*/	2455	*/
		2456	key_value *
2670	key_value * get_ob_key_link(const object * ob, const char * key) {	2457	get_ob_key_link (const object *ob, const char *key)
2671	key_value * link;	2458	{
2672
2673	for (link = ob->key_values; link != NULL; link = link->next) {	2459	for (key_value *link = ob->key_values; link; link = link->next)
2674	if (link->key == key) {	2460	if (link->key == key)
2675	return link;	2461	return link;
2676	}	2462
2677	}	2463	return 0;
2678		2464	}
2679	return NULL;
2680	}
2681		2465
2682	/*	2466	/*
2683	* Returns the value of op has an extra_field for key, or NULL.	2467	* Returns the value of op has an extra_field for key, or NULL.
2684	*	2468	*
2685	* The argument doesn't need to be a shared string.	2469	* The argument doesn't need to be a shared string.
2686	*	2470	*
2687	* The returned string is shared.	2471	* The returned string is shared.
2688	*/	2472	*/
		2473	const char *
2689	const char * get_ob_key_value(const object * op, const char * const key) {	2474	get_ob_key_value (const object *op, const char *const key)
		2475	{
2690	key_value * link;	2476	key_value *link;
2691	const char * canonical_key;	2477	shstr_cmp canonical_key (key);
		2478
		2479	if (!canonical_key)
2692		2480	{
2693	canonical_key = find_string(key);
2694
2695	if (canonical_key == NULL) {
2696	/* 1. There being a field named key on any object	2481	/* 1. There being a field named key on any object
2697	* implies there'd be a shared string to find.	2482	* implies there'd be a shared string to find.
2698	* 2. Since there isn't, no object has this field.	2483	* 2. Since there isn't, no object has this field.
2699	* 3. Therefore, *this* object doesn't have this field.	2484	* 3. Therefore, *this* object doesn't have this field.
2700	*/	2485	*/
2701	return NULL;	2486	return 0;
2702	}	2487	}
2703		2488
2704	/* This is copied from get_ob_key_link() above -	2489	/* This is copied from get_ob_key_link() above -
2705	* only 4 lines, and saves the function call overhead.	2490	* only 4 lines, and saves the function call overhead.
2706	*/	2491	*/
2707	for (link = op->key_values; link != NULL; link = link->next) {	2492	for (link = op->key_values; link; link = link->next)
2708	if (link->key == canonical_key) {	2493	if (link->key == canonical_key)
2709	return link->value;	2494	return link->value;
2710	}	2495
2711	}	2496	return 0;
2712	return NULL;
2713	}	2497	}
2714		2498
2715		2499
2716	/*	2500	/*
2717	* Updates the canonical_key in op to value.	2501	* Updates the canonical_key in op to value.
…		…
2721	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2505	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2722	* keys.	2506	* keys.
2723	*	2507	*
2724	* Returns TRUE on success.	2508	* Returns TRUE on success.
2725	*/	2509	*/
		2510	int
2726	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2511	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2512	{
2727	key_value * field = NULL, *last=NULL;	2513	key_value *field = NULL, *last = NULL;
2728		2514
2729	for (field=op->key_values; field != NULL; field=field->next) {	2515	for (field = op->key_values; field != NULL; field = field->next)
2730	if (field->key != canonical_key) {
2731	last = field;
2732	continue;
2733	}
2734		2516	{
2735	if (field->value) FREE_AND_CLEAR_STR(field->value);	2517	if (field->key != canonical_key)
2736	if (value)	2518	{
2737	field->value = add_string(value);	2519	last = field;
2738	else {	2520	continue;
		2521	}
		2522
		2523	if (value)
		2524	field->value = value;
		2525	else
		2526	{
2739	/* Basically, if the archetype has this key set,	2527	/* Basically, if the archetype has this key set,
2740	* we need to store the null value so when we save	2528	* we need to store the null value so when we save
2741	* it, we save the empty value so that when we load,	2529	* it, we save the empty value so that when we load,
2742	* we get this value back again.	2530	* we get this value back again.
2743	*/	2531	*/
2744	if (get_ob_key_link(&op->arch->clone, canonical_key))	2532	if (get_ob_key_link (&op->arch->clone, canonical_key))
2745	field->value = NULL;	2533	field->value = 0;
2746	else {	2534	else
2747	/* Delete this link */	2535	{
2748	if (field->key) FREE_AND_CLEAR_STR(field->key);	2536	if (last)
2749	if (field->value) FREE_AND_CLEAR_STR(field->value);	2537	last->next = field->next;
2750	if (last) last->next = field->next;	2538	else
2751	else op->key_values = field->next;	2539	op->key_values = field->next;
2752	free(field);	2540
2753	}	2541	delete field;
2754	}	2542	}
		2543	}
2755	return TRUE;	2544	return TRUE;
2756	}	2545	}
2757	/* IF we get here, key doesn't exist */	2546	/* IF we get here, key doesn't exist */
2758		2547
2759	/* No field, we'll have to add it. */	2548	/* No field, we'll have to add it. */
2760		2549
2761	if (!add_key) {	2550	if (!add_key)
2762	return FALSE;	2551	return FALSE;
2763	}	2552
2764	/* There isn't any good reason to store a null	2553	/* There isn't any good reason to store a null
2765	* value in the key/value list. If the archetype has	2554	* value in the key/value list. If the archetype has
2766	* this key, then we should also have it, so shouldn't	2555	* this key, then we should also have it, so shouldn't
2767	* be here. If user wants to store empty strings,	2556	* be here. If user wants to store empty strings,
2768	* should pass in ""	2557	* should pass in ""
2769	*/	2558	*/
2770	if (value == NULL) return TRUE;	2559	if (value == NULL)
2771
2772	field = (key_value *) malloc(sizeof(key_value));
2773
2774	field->key = add_refcount(canonical_key);
2775	field->value = add_string(value);
2776	/* Usual prepend-addition. */
2777	field->next = op->key_values;
2778	op->key_values = field;
2779
2780	return TRUE;	2560	return TRUE;
		2561
		2562	field = new key_value;
		2563
		2564	field->key = canonical_key;
		2565	field->value = value;
		2566	/* Usual prepend-addition. */
		2567	field->next = op->key_values;
		2568	op->key_values = field;
		2569
		2570	return TRUE;
2781	}	2571	}
2782		2572
2783	/*	2573	/*
2784	* Updates the key in op to value.	2574	* Updates the key in op to value.
2785	*	2575	*
…		…
2787	* and not add new ones.	2577	* and not add new ones.
2788	* In general, should be little reason FALSE is ever passed in for add_key	2578	* In general, should be little reason FALSE is ever passed in for add_key
2789	*	2579	*
2790	* Returns TRUE on success.	2580	* Returns TRUE on success.
2791	*/	2581	*/
		2582	int
2792	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2583	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2793	const char * canonical_key = NULL;	2584	{
2794	int floating_ref = FALSE;	2585	shstr key_ (key);
2795	int ret;	2586
		2587	return set_ob_key_value_s (op, key_, value, add_key);
		2588	}
		2589
		2590	object::depth_iterator::depth_iterator (object *container)
		2591	: iterator_base (container)
		2592	{
		2593	while (item->inv)
		2594	item = item->inv;
		2595	}
		2596
		2597	void
		2598	object::depth_iterator::next ()
		2599	{
		2600	if (item->below)
2796		2601	{
2797	/* HACK This mess is to make sure set_ob_value() passes a shared string	2602	item = item->below;
2798	* to get_ob_key_link(), without leaving a leaked refcount.	2603
2799	*/	2604	while (item->inv)
		2605	item = item->inv;
2800		2606	}
2801	canonical_key = find_string(key);	2607	else
2802	if (canonical_key == NULL) {	2608	item = item->env;
2803	canonical_key = add_string(key);	2609	}
2804	floating_ref = TRUE;	2610
2805	}	2611
		2612	const char *
		2613	object::flag_desc (char *desc, int len) const
		2614	{
		2615	char *p = desc;
		2616	bool first = true;
		2617
		2618	*p = 0;
		2619
		2620	for (int i = 0; i < NUM_FLAGS; i++)
2806		2621	{
2807	ret = set_ob_key_value_s(op, canonical_key, value, add_key);	2622	if (len <= 10) // magic constant!
		2623	{
		2624	snprintf (p, len, ",...");
		2625	break;
		2626	}
		2627
		2628	if (flag [i])
		2629	{
		2630	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2631	len -= cnt;
		2632	p += cnt;
		2633	first = false;
		2634	}
2808		2635	}
2809	if (floating_ref) {	2636
2810	free_string(canonical_key);
2811	}
2812
2813	return ret;	2637	return desc;
2814	}	2638	}
		2639
		2640	// return a suitable string describing an object in enough detail to find it
		2641	const char *
		2642	object::debug_desc (char *info) const
		2643	{
		2644	char flagdesc[512];
		2645	char info2[256 * 4];
		2646	char *p = info;
		2647
		2648	p += snprintf (p, 512, "{cnt:%d,uuid:<1,%" PRIx64 ">,name:\"%s%s%s\",flags:[%s],type:%d}",
		2649	count, uuid.seq,
		2650	&name,
		2651	title ? "\",title:" : "",
		2652	title ? (const char *)title : "",
		2653	flag_desc (flagdesc, 512), type);
		2654
		2655	if (env)
		2656	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2657
		2658	if (map)
		2659	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2660
		2661	return info;
		2662	}
		2663
		2664	const char *
		2665	object::debug_desc () const
		2666	{
		2667	static char info[256 * 3];
		2668	return debug_desc (info);
		2669	}
		2670

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