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Comparing deliantra/server/common/object.C (file contents):
Revision 1.10 by root, Thu Aug 31 17:54:14 2006 UTC vs.
Revision 1.86 by root, Tue Dec 26 08:17:58 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.10 2006/08/31 17:54:14 root Exp $";
4	*/
5
6	/*	1	/*
7	CrossFire, A Multiplayer game for X-windows	2	CrossFire, A Multiplayer game for X-windows
8		3
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	5	Copyright (C) 1992 Frank Tore Johansen
…		…
21		16
22	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software	18	along with this program; if not, write to the Free Software
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25		20
26	The authors can be reached via e-mail at crossfire-devel@real-time.com	21	The authors can be reached via e-mail at <crossfire@schmorp.de>
27	*/	22	*/
28		23
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying	25	sub/add_weight will transcend the environment updating the carrying
31	variable. */	26	variable. */
32	#include <global.h>	27	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	28	#include <stdio.h>
35	#include <sys/types.h>	29	#include <sys/types.h>
36	#include <sys/uio.h>	30	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	31	#include <object.h>
39	#include <funcpoint.h>	32	#include <funcpoint.h>
40	#include <skills.h>
41	#include <loader.h>	33	#include <loader.h>
42	#ifdef MEMORY_DEBUG	34
43	int nroffreeobjects = 0;	35	#include <bitset>
		36
44	int nrofallocobjects = 0;	37	int nrofallocobjects = 0;
45	#undef OBJ_EXPAND	38	static UUID uuid;
46	#define OBJ_EXPAND 1	39	const uint64 UUID_SKIP = 1<<19;
47	#else
48	object objarray[STARTMAX]; /* All objects, allocated this way at first */
49	int nroffreeobjects = STARTMAX; /* How many OBs allocated and free (free) */
50	int nrofallocobjects = STARTMAX; /* How many OBs allocated (free + used) */
51	#endif
52		40
53	object *objects; /* Pointer to the list of used objects */
54	object *free_objects; /* Pointer to the list of unused objects */
55	object *active_objects; /* List of active objects that need to be processed */	41	object *active_objects; /* List of active objects that need to be processed */
56		42
57	short freearr_x[SIZEOFFREE]=	43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
58	{0,0,1,1,1,0,-1,-1,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,-2,-2,-2,-1,
59	0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3,-3,-3,-3,-3,-2,-1};	44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
60	short freearr_y[SIZEOFFREE]=	45	};
61	{0,-1,-1,0,1,1,1,0,-1,-2,-2,-2,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,	46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
62	-3,-3,-3,-3,-2,-1,0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3};	47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
63	int maxfree[SIZEOFFREE]=	48	};
64	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,	49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
65	48,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49};	50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		51	};
66	int freedir[SIZEOFFREE]= {	52	int freedir[SIZEOFFREE] = {
67	0,1,2,3,4,5,6,7,8,1,2,2,2,3,4,4,4,5,6,6,6,7,8,8,8,	53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
68	1,2,2,2,2,2,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,8};	54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		55	};
69		56
		57	static void
		58	write_uuid (void)
		59	{
		60	char filename1[MAX_BUF], filename2[MAX_BUF];
		61
		62	sprintf (filename1, "%s/uuid", settings.localdir);
		63	sprintf (filename2, "%s/uuid~", settings.localdir);
		64
		65	FILE *fp;
		66
		67	if (!(fp = fopen (filename2, "w")))
		68	{
		69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		70	return;
		71	}
		72
		73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		74	fclose (fp);
		75	rename (filename2, filename1);
		76	}
		77
		78	static void
		79	read_uuid (void)
		80	{
		81	char filename[MAX_BUF];
		82
		83	sprintf (filename, "%s/uuid", settings.localdir);
		84
		85	FILE *fp;
		86
		87	if (!(fp = fopen (filename, "r")))
		88	{
		89	if (errno == ENOENT)
		90	{
		91	LOG (llevInfo, "RESET uid to 1\n");
		92	uuid.seq = 0;
		93	write_uuid ();
		94	return;
		95	}
		96
		97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		98	_exit (1);
		99	}
		100
		101	int version;
		102	unsigned long long uid;
		103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		104	{
		105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		106	_exit (1);
		107	}
		108
		109	uuid.seq = uid;
		110	write_uuid ();
		111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		112	fclose (fp);
		113	}
		114
		115	UUID
		116	gen_uuid ()
		117	{
		118	UUID uid;
		119
		120	uid.seq = ++uuid.seq;
		121
		122	if (!(uuid.seq & (UUID_SKIP - 1)))
		123	write_uuid ();
		124
		125	return uid;
		126	}
		127
		128	void
		129	init_uuid ()
		130	{
		131	read_uuid ();
		132	}
70		133
71	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		135	static int
72	static int compare_ob_value_lists_one(const object * wants, const object * has) {	136	compare_ob_value_lists_one (const object *wants, const object *has)
		137	{
73	key_value * wants_field;	138	key_value *wants_field;
74		139
75	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
76	* objects with lists are rare, and lists stay short. If not, use a	141	* objects with lists are rare, and lists stay short. If not, use a
77	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
78	*/	143	*/
79		144
80	/* For each field in wants, */	145	/* For each field in wants, */
81	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	146	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
		147	{
82	key_value * has_field;	148	key_value *has_field;
83		149
84	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
85	has_field = get_ob_key_link(has, wants_field->key);	151	has_field = get_ob_key_link (has, wants_field->key);
		152
		153	if (has_field == NULL)
86		154	{
87	if (has_field == NULL) {
88	/* No field with that name. */	155	/* No field with that name. */
89	return FALSE;	156	return FALSE;
90	}	157	}
91		158
92	/* Found the matching field. */	159	/* Found the matching field. */
93	if (has_field->value != wants_field->value) {	160	if (has_field->value != wants_field->value)
		161	{
94	/* Values don't match, so this half of the comparison is false. */	162	/* Values don't match, so this half of the comparison is false. */
95	return FALSE;	163	return FALSE;
96	}	164	}
97		165
98	/* If we get here, we found a match. Now for the next field in wants. */	166	/* If we get here, we found a match. Now for the next field in wants. */
99	}
100		167	}
		168
101	/* If we get here, every field in wants has a matching field in has. */	169	/* If we get here, every field in wants has a matching field in has. */
102	return TRUE;	170	return TRUE;
103	}	171	}
104		172
105	/* Returns TRUE if ob1 has the same key_values as ob2. */	173	/* Returns TRUE if ob1 has the same key_values as ob2. */
		174	static int
106	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	175	compare_ob_value_lists (const object *ob1, const object *ob2)
		176	{
107	/* However, there may be fields in has which aren't partnered in wants,	177	/* However, there may be fields in has which aren't partnered in wants,
108	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
109	*/	179	*/
110	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
111	}	181	}
112		182
113	/* Function examines the 2 objects given to it, and returns true if	183	/* Function examines the 2 objects given to it, and returns true if
114	* they can be merged together.	184	* they can be merged together.
115	*	185	*
116	* Note that this function appears a lot longer than the macro it	186	* Note that this function appears a lot longer than the macro it
117	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
118	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
119	*	189	*
120	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
121	*	191	*
122	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
123	* check weight	193	* check weight
124	*/	194	*/
125		195
126	int CAN_MERGE(object *ob1, object *ob2) {	196	bool object::can_merge_slow (object *ob1, object *ob2)
127		197	{
128	/* A couple quicksanity checks */	198	/* A couple quicksanity checks */
129	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	199	if (ob1 == ob2
		200	|| ob1->type != ob2->type
		201	|| ob1->speed != ob2->speed
		202	|| ob1->value != ob2->value
		203	|| ob1->name != ob2->name)
		204	return 0;
130		205
131	if (ob1->speed != ob2->speed) return 0;	206	//TODO: this ain't working well, use nicer and correct overflow check
132	/* Note sure why the following is the case - either the object has to	207	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
133	* be animated or have a very low speed. Is this an attempted monster	208	* value could not be stored in a sint32 (which unfortunately sometimes is
134	* check?	209	* used to store nrof).
135	*/	210	*/
136	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)	211	if (ob1->nrof + ob2->nrof >= 1UL << 31)
		212	return 0;
		213
		214	/* If the objects have been identified, set the BEEN_APPLIED flag.
		215	* This is to the comparison of the flags below will be OK. We
		216	* just can't ignore the been applied or identified flags, as they
		217	* are not equal - just if it has been identified, the been_applied
		218	* flags lose any meaning.
		219	*/
		220	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
		221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
		222
		223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
		224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
		225
		226	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
		227	|| ob1->arch != ob2->arch
		228	|| ob1->name != ob2->name
		229	|| ob1->title != ob2->title
		230	|| ob1->msg != ob2->msg
		231	|| ob1->weight != ob2->weight
		232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
		234	|| ob1->attacktype != ob2->attacktype
		235	|| ob1->magic != ob2->magic
		236	|| ob1->slaying != ob2->slaying
		237	|| ob1->skill != ob2->skill
		238	|| ob1->value != ob2->value
		239	|| ob1->animation_id != ob2->animation_id
		240	|| ob1->client_type != ob2->client_type
		241	|| ob1->materialname != ob2->materialname
		242	|| ob1->lore != ob2->lore
		243	|| ob1->subtype != ob2->subtype
		244	|| ob1->move_type != ob2->move_type
		245	|| ob1->move_block != ob2->move_block
		246	|| ob1->move_allow != ob2->move_allow
		247	|| ob1->move_on != ob2->move_on
		248	|| ob1->move_off != ob2->move_off
		249	|| ob1->move_slow != ob2->move_slow
		250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
		251	return 0;
		252
		253	/* This is really a spellbook check - really, we should
		254	* check all objects in the inventory.
		255	*/
		256	if (ob1->inv || ob2->inv)
		257	{
		258	/* if one object has inventory but the other doesn't, not equiv */
		259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
137	return 0;	260	return 0;
138		261
139	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	262	/* Now check to see if the two inventory objects could merge */
140	* value could not be stored in a sint32 (which unfortunately sometimes is	263	if (!object::can_merge (ob1->inv, ob2->inv))
141	* used to store nrof).
142	*/
143	if (ob1->nrof+ob2->nrof >= 1UL<<31)
144	return 0;	264	return 0;
145		265
146	/* This is really a spellbook check - really, we should
147	* check all objects in the inventory.
148	*/
149	if (ob1->inv || ob2->inv) {
150	/* if one object has inventory but the other doesn't, not equiv */
151	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) return 0;
152
153	/* Now check to see if the two inventory objects could merge */
154	if (!CAN_MERGE(ob1->inv, ob2->inv)) return 0;
155
156	/* inventory ok - still need to check rest of this object to see	266	/* inventory ok - still need to check rest of this object to see
157	* if it is valid.	267	* if it is valid.
158	*/	268	*/
159	}	269	}
160		270
161	/* If the objects have been identified, set the BEEN_APPLIED flag.
162	* This is to the comparison of the flags below will be OK. We
163	* just can't ignore the been applied or identified flags, as they
164	* are not equal - just if it has been identified, the been_applied
165	* flags lose any meaning.
166	*/
167	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))
168	SET_FLAG(ob1, FLAG_BEEN_APPLIED);
169
170	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))
171	SET_FLAG(ob2, FLAG_BEEN_APPLIED);
172
173
174	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
175	* being locked in inventory should prevent merging.
176	* 0x4 in flags3 is CLIENT_SENT
177	*/
178	if ((ob1->arch != ob2->arch) ||
179	(ob1->flags[0] != ob2->flags[0]) ||
180	(ob1->flags[1] != ob2->flags[1]) ||
181	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||
182	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
183	(ob1->name != ob2->name) ||
184	(ob1->title != ob2->title) ||
185	(ob1->msg != ob2->msg) ||
186	(ob1->weight != ob2->weight) ||
187	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||
188	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||
189	(ob1->attacktype != ob2->attacktype) ||
190	(ob1->magic != ob2->magic) ||
191	(ob1->slaying != ob2->slaying) ||
192	(ob1->skill != ob2->skill) ||
193	(ob1->value != ob2->value) ||
194	(ob1->animation_id != ob2->animation_id) ||
195	(ob1->client_type != ob2->client_type) ||
196	(ob1->materialname != ob2->materialname) ||
197	(ob1->lore != ob2->lore) ||
198	(ob1->subtype != ob2->subtype) ||
199	(ob1->move_type != ob2->move_type) ||
200	(ob1->move_block != ob2->move_block) ||
201	(ob1->move_allow != ob2->move_allow) ||
202	(ob1->move_on != ob2->move_on) ||
203	(ob1->move_off != ob2->move_off) ||
204	(ob1->move_slow != ob2->move_slow) ||
205	(ob1->move_slow_penalty != ob2->move_slow_penalty)
206	)
207	return 0;
208
209	/* Don't merge objects that are applied. With the new 'body' code,	271	/* Don't merge objects that are applied. With the new 'body' code,
210	* it is possible for most any character to have more than one of	272	* it is possible for most any character to have more than one of
211	* some items equipped, and we don't want those to merge.	273	* some items equipped, and we don't want those to merge.
212	*/	274	*/
213	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	275	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
		276	return 0;
		277
		278	/* Note sure why the following is the case - either the object has to
		279	* be animated or have a very low speed. Is this an attempted monster
		280	* check?
		281	*/
		282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
		283	return 0;
		284
		285	switch (ob1->type)
		286	{
		287	case SCROLL:
		288	if (ob1->level != ob2->level)
		289	return 0;
		290	break;
		291	}
		292
		293	if (ob1->key_values != NULL || ob2->key_values != NULL)
		294	{
		295	/* At least one of these has key_values. */
		296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
		297	/* One has fields, but the other one doesn't. */
214	return 0;	298	return 0;
215
216	switch (ob1->type) {
217	case SCROLL:
218	if (ob1->level != ob2->level) return 0;
219	break;
220
221	}
222	if (ob1->key_values != NULL || ob2->key_values != NULL) {
223	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {
225	/* One has fields, but the other one doesn't. */
226	return 0;
227	} else if (!compare_ob_value_lists(ob1, ob2)) {	299	else if (!compare_ob_value_lists (ob1, ob2))
228	return 0;	300	return 0;
229	}	301	}
		302
		303	//TODO: generate an event or call into perl for additional checks
		304	if (ob1->self || ob2->self)
230	}	305	{
		306	ob1->optimise ();
		307	ob2->optimise ();
231		308
		309	if (ob1->self || ob2->self)
		310	return 0;
		311	}
		312
232	/* Everything passes, must be OK. */	313	/* Everything passes, must be OK. */
233	return 1;	314	return 1;
234	}	315	}
235		316
236	/*	317	/*
237	* sum_weight() is a recursive function which calculates the weight	318	* sum_weight() is a recursive function which calculates the weight
238	* an object is carrying. It goes through in figures out how much	319	* an object is carrying. It goes through in figures out how much
239	* containers are carrying, and sums it up.	320	* containers are carrying, and sums it up.
240	*/	321	*/
241	signed long sum_weight(object *op) {	322	long
		323	sum_weight (object *op)
		324	{
242	signed long sum;	325	long sum;
243	object *inv;	326	object *inv;
		327
244	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		329	{
245	if (inv->inv)	330	if (inv->inv)
246	sum_weight(inv);	331	sum_weight (inv);
247	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
248	}	333	}
		334
249	if (op->type == CONTAINER && op->stats.Str)	335	if (op->type == CONTAINER && op->stats.Str)
250	sum = (sum * (100 - op->stats.Str))/100;	336	sum = (sum * (100 - op->stats.Str)) / 100;
		337
251	if(op->carrying != sum)	338	if (op->carrying != sum)
252	op->carrying = sum;	339	op->carrying = sum;
		340
253	return sum;	341	return sum;
254	}	342	}
255		343
256	/**	344	/**
257	* Return the outermost environment object for a given object.	345	* Return the outermost environment object for a given object.
258	*/	346	*/
259		347
		348	object *
260	object *object_get_env_recursive (object *op) {	349	object_get_env_recursive (object *op)
		350	{
261	while (op->env != NULL)	351	while (op->env != NULL)
262	op = op->env;	352	op = op->env;
263	return op;	353	return op;
264	}
265
266	/*
267	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
268	* a better check. We basically keeping traversing up until we can't
269	* or find a player.
270	*/
271
272	object *is_player_inv (object *op) {
273	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
274	if (op->env==op)
275	op->env = NULL;
276	return op;
277	}	354	}
278		355
279	/*	356	/*
280	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	357	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
281	* Some error messages.	358	* Some error messages.
282	* The result of the dump is stored in the static global errmsg array.	359	* The result of the dump is stored in the static global errmsg array.
283	*/	360	*/
284		361
285	void dump_object2(object *op) {	362	char *
286	errmsg[0] = 0;
287	return;
288	//TODO//D#d#
289	#if 0
290	char *cp;
291	/* object *tmp;*/
292
293	if(op->arch!=NULL) {
294	strcat(errmsg,"arch ");
295	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
296	strcat(errmsg,"\n");
297	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
298	strcat(errmsg,cp);
299	#if 0
300	/* Don't dump player diffs - they are too long, mostly meaningless, and
301	* will overflow the buffer.
302	* Changed so that we don't dump inventory either. This may
303	* also overflow the buffer.
304	*/
305	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
306	strcat(errmsg,cp);
307	for (tmp=op->inv; tmp; tmp=tmp->below)
308	dump_object2(tmp);
309	#endif
310	strcat(errmsg,"end\n");
311	} else {
312	strcat(errmsg,"Object ");
313	if (op->name==NULL) strcat(errmsg, "(null)");
314	else strcat(errmsg,op->name);
315	strcat(errmsg,"\n");
316	#if 0
317	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
318	strcat(errmsg,cp);
319	for (tmp=op->inv; tmp; tmp=tmp->below)
320	dump_object2(tmp);
321	#endif
322	strcat(errmsg,"end\n");
323	}
324	#endif
325	}
326
327	/*
328	* Dumps an object. Returns output in the static global errmsg array.
329	*/
330
331	void dump_object(object *op) {	363	dump_object (object *op)
332	if(op==NULL) {	364	{
333	strcpy(errmsg,"[NULL pointer]");	365	if (!op)
334	return;	366	return strdup ("[NULLOBJ]");
335	}
336	errmsg[0]='\0';
337	dump_object2(op);
338	}
339		367
340	void dump_all_objects(void) {	368	object_freezer freezer;
341	object *op;	369	save_object (freezer, op, 1);
342	for(op=objects;op!=NULL;op=op->next) {	370	return freezer.as_string ();
343	dump_object(op);
344	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
345	}
346	}	371	}
347		372
348	/*	373	/*
349	* get_nearest_part(multi-object, object 2) returns the part of the	374	* get_nearest_part(multi-object, object 2) returns the part of the
350	* multi-object 1 which is closest to the second object.	375	* multi-object 1 which is closest to the second object.
351	* If it's not a multi-object, it is returned.	376	* If it's not a multi-object, it is returned.
352	*/	377	*/
353		378
		379	object *
354	object *get_nearest_part(object *op, const object *pl) {	380	get_nearest_part (object *op, const object *pl)
		381	{
355	object *tmp,*closest;	382	object *tmp, *closest;
356	int last_dist,i;	383	int last_dist, i;
		384
357	if(op->more==NULL)	385	if (op->more == NULL)
358	return op;	386	return op;
359	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	387	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
360	if((i=distance(tmp,pl))<last_dist)	388	if ((i = distance (tmp, pl)) < last_dist)
361	closest=tmp,last_dist=i;	389	closest = tmp, last_dist = i;
362	return closest;	390	return closest;
363	}	391	}
364		392
365	/*	393	/*
366	* Returns the object which has the count-variable equal to the argument.	394	* Returns the object which has the count-variable equal to the argument.
367	*/	395	*/
368		396
		397	object *
369	object *find_object(tag_t i) {	398	find_object (tag_t i)
370	object *op;	399	{
371	for(op=objects;op!=NULL;op=op->next)	400	for (object *op = object::first; op; op = op->next)
372	if(op->count==i)	401	if (op->count == i)
373	break;	402	return op;
		403
374	return op;	404	return 0;
375	}	405	}
376		406
377	/*	407	/*
378	* Returns the first object which has a name equal to the argument.	408	* Returns the first object which has a name equal to the argument.
379	* Used only by the patch command, but not all that useful.	409	* Used only by the patch command, but not all that useful.
380	* Enables features like "patch <name-of-other-player> food 999"	410	* Enables features like "patch <name-of-other-player> food 999"
381	*/	411	*/
382		412
		413	object *
383	object *find_object_name(const char *str) {	414	find_object_name (const char *str)
384	const char *name=add_string(str);	415	{
		416	shstr_cmp str_ (str);
385	object *op;	417	object *op;
		418
386	for(op=objects;op!=NULL;op=op->next)	419	for (op = object::first; op != NULL; op = op->next)
387	if(op->name==name)	420	if (op->name == str_)
388	break;	421	break;
389	free_string(name);	422
390	return op;	423	return op;
391	}	424	}
392		425
		426	void
393	void free_all_object_data(void) {	427	free_all_object_data ()
394	#ifdef MEMORY_DEBUG
395	object *op, *next;
396
397	for (op=free_objects; op!=NULL; ) {
398	next=op->next;
399	free(op);
400	nrofallocobjects--;
401	nroffreeobjects--;
402	op=next;
403	}
404	#endif
405	LOG(llevDebug,"%d allocated objects, %d free objects, STARMAX=%d\n",
406	nrofallocobjects, nroffreeobjects,STARTMAX);
407	}
408
409	/*
410	* Returns the object which this object marks as being the owner.
411	* A id-scheme is used to avoid pointing to objects which have been
412	* freed and are now reused. If this is detected, the owner is
413	* set to NULL, and NULL is returned.
414	* Changed 2004-02-12 - if the player is setting at the play again
415	* prompt, he is removed, and we don't want to treat him as an owner of
416	* anything, so check removed flag. I don't expect that this should break
417	* anything - once an object is removed, it is basically dead anyways.
418	*/
419
420	object *get_owner(object *op) {
421	if(op->owner==NULL)
422	return NULL;
423
424	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
425	op->owner->count==op->ownercount)
426	return op->owner;
427
428	op->owner=NULL;
429	op->ownercount=0;
430	return NULL;
431	}
432
433	void clear_owner(object *op)
434	{	428	{
435	if (!op) return;	429	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
436
437	if (op->owner && op->ownercount == op->owner->count)
438	op->owner->refcount--;
439
440	op->owner = NULL;
441	op->ownercount = 0;
442	}	430	}
443
444
445		431
446	/*	432	/*
447	* Sets the owner and sets the skill and exp pointers to owner's current	433	* Sets the owner and sets the skill and exp pointers to owner's current
448	* skill and experience objects.	434	* skill and experience objects.
449	*/	435	*/
450	void set_owner (object *op, object *owner)	436	void
		437	object::set_owner (object *owner)
451	{	438	{
452	if(owner==NULL||op==NULL)	439	if (!owner)
453	return;	440	return;
454		441
455	/* next line added to allow objects which own objects */	442	/* next line added to allow objects which own objects */
456	/* Add a check for ownercounts in here, as I got into an endless loop	443	/* Add a check for ownercounts in here, as I got into an endless loop
457	* with the fireball owning a poison cloud which then owned the	444	* with the fireball owning a poison cloud which then owned the
458	* fireball. I believe that was caused by one of the objects getting	445	* fireball. I believe that was caused by one of the objects getting
459	* freed and then another object replacing it. Since the ownercounts	446	* freed and then another object replacing it. Since the ownercounts
460	* didn't match, this check is valid and I believe that cause is valid.	447	* didn't match, this check is valid and I believe that cause is valid.
461	*/	448	*/
462	while (owner->owner && owner!=owner->owner &&	449	while (owner->owner)
463	owner->ownercount==owner->owner->count) owner=owner->owner;	450	owner = owner->owner;
464		451
465	/* IF the owner still has an owner, we did not resolve to a final owner.
466	* so lets not add to that.
467	*/
468	if (owner->owner) return;
469
470	op->owner=owner;	452	this->owner = owner;
471
472	op->ownercount=owner->count;
473	owner->refcount++;
474
475	}
476
477	/* Set the owner to clone's current owner and set the skill and experience
478	* objects to clone's objects (typically those objects that where the owner's
479	* current skill and experience objects at the time when clone's owner was
480	* set - not the owner's current skill and experience objects).
481	*
482	* Use this function if player created an object (e.g. fire bullet, swarm
483	* spell), and this object creates further objects whose kills should be
484	* accounted for the player's original skill, even if player has changed
485	* skills meanwhile.
486	*/
487	void copy_owner (object *op, object *clone)
488	{
489	object *owner = get_owner (clone);
490	if (owner == NULL) {
491	/* players don't have owners - they own themselves. Update
492	* as appropriate.
493	*/
494	if (clone->type == PLAYER) owner=clone;
495	else return;
496	}
497	set_owner(op, owner);
498
499	}
500
501	/*
502	* Resets vital variables in an object
503	*/
504
505	void reset_object(object *op) {
506
507	op->name = NULL;
508	op->name_pl = NULL;
509	op->title = NULL;
510	op->race = NULL;
511	op->slaying = NULL;
512	op->skill = NULL;
513	op->msg = NULL;
514	op->materialname = NULL;
515	op->lore = NULL;
516	clear_object(op);
517	}	453	}
518		454
519	/* Zero the key_values on op, decrementing the shared-string	455	/* Zero the key_values on op, decrementing the shared-string
520	* refcounts and freeing the links.	456	* refcounts and freeing the links.
521	*/	457	*/
		458	static void
522	static void free_key_values(object * op) {	459	free_key_values (object *op)
523	key_value * i;	460	{
524	key_value * next = NULL;	461	for (key_value *i = op->key_values; i != 0;)
525		462	{
526	if (op->key_values == NULL) return;	463	key_value *next = i->next;
		464	delete i;
		465
		466	i = next;
527		467	}
528	for (i = op->key_values; i != NULL; i = next) {	468
529	/* Store next *first*. */
530	next = i->next;
531
532	if (i->key) FREE_AND_CLEAR_STR(i->key);
533	if (i->value) FREE_AND_CLEAR_STR(i->value);
534	i->next = NULL;
535	free(i);
536	}
537
538	op->key_values = NULL;	469	op->key_values = 0;
539	}	470	}
540		471
541
542	/*	472	/*
543	* clear_object() frees everything allocated by an object, and also
544	* clears all variables and flags to default settings.
545	*/
546
547	void clear_object(object *op) {
548	op->clear ();
549
550	event *evt;
551	event *evt2;
552
553	/* redo this to be simpler/more efficient. Was also seeing
554	* crashes in the old code. Move this to the top - am
555	* seeing periodic crashes in this code, and would like to have
556	* as much info available as possible (eg, object name).
557	*/
558	for (evt = op->events; evt; evt=evt2) {
559	evt2 = evt->next;
560
561	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
562	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
563	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
564
565	free(evt);
566	}
567	op->events = NULL;
568
569	free_key_values(op);
570
571	/* the memset will clear all these values for us, but we need
572	* to reduce the refcount on them.
573	*/
574	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);
575	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);
576	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);
577	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);
578	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);
579	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);
580	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);
581	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);
582	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);
583
584
585	memset((void*)op, 0, sizeof (object_special));
586	/* Below here, we clear things that are not done by the memset,
587	* or set default values that are not zero.
588	*/
589	/* This is more or less true */
590	SET_FLAG(op, FLAG_REMOVED);
591
592
593	op->contr = NULL;
594	op->below=NULL;
595	op->above=NULL;
596	op->inv=NULL;
597	op->events=NULL;
598	op->container=NULL;
599	op->env=NULL;
600	op->more=NULL;
601	op->head=NULL;
602	op->map=NULL;
603	op->refcount=0;
604	op->active_next = NULL;
605	op->active_prev = NULL;
606	/* What is not cleared is next, prev, and count */
607
608	op->expmul=1.0;
609	op->face = blank_face;
610	op->attacked_by_count = (tag_t) -1;
611	if (settings.casting_time)
612	op->casting_time = -1;
613
614	}
615
616	/*
617	* copy object first frees everything allocated by the second object,	473	* copy_to first frees everything allocated by the dst object,
618	* and then copies the contends of the first object into the second	474	* and then copies the contents of itself into the second
619	* object, allocating what needs to be allocated. Basically, any	475	* object, allocating what needs to be allocated. Basically, any
620	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	476	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
621	* if the first object is freed, the pointers in the new object	477	* if the first object is freed, the pointers in the new object
622	* will point at garbage.	478	* will point at garbage.
623	*/	479	*/
		480	void
		481	object::copy_to (object *dst)
		482	{
		483	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
		484	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
624		485
625	void copy_object(object *op2, object *op) {	486	*(object_copy *)dst = *this;
626	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);
627	event *evt, *evt2, *evt_new;
628		487
629	op->clear ();	488	if (is_freed)
		489	SET_FLAG (dst, FLAG_FREED);
630		490
631	/* Decrement the refcounts, but don't bother zeroing the fields;	491	if (is_removed)
632	they'll be overwritten by memcpy. */	492	SET_FLAG (dst, FLAG_REMOVED);
633	if(op->name!=NULL) free_string(op->name);
634	if(op->name_pl!=NULL) free_string(op->name_pl);
635	if(op->title!=NULL) free_string(op->title);
636	if(op->race!=NULL) free_string(op->race);
637	if(op->slaying!=NULL) free_string(op->slaying);
638	if(op->skill!=NULL) free_string(op->skill);
639	if(op->msg!=NULL) free_string(op->msg);
640	if(op->lore!=NULL) free_string(op->lore);
641	if(op->materialname != NULL) free_string(op->materialname);
642	if(op->custom_name != NULL) free_string(op->custom_name);
643		493
644	/* Basically, same code as from clear_object() */	494	if (speed < 0)
645	for (evt = op->events; evt; evt=evt2) {
646	evt2 = evt->next;
647
648	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
649	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
650	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
651
652	free(evt);
653	}
654	op->events = NULL;
655
656	free_key_values(op);
657
658	*(object_special *)op = *(object_special *)op2;
659	op2->clone (op);
660
661	if(is_freed) SET_FLAG(op,FLAG_FREED);
662	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
663	if(op->name!=NULL) add_refcount(op->name);
664	if(op->name_pl!=NULL) add_refcount(op->name_pl);
665	if(op->title!=NULL) add_refcount(op->title);
666	if(op->race!=NULL) add_refcount(op->race);
667	if(op->slaying!=NULL) add_refcount(op->slaying);
668	if(op->skill!=NULL) add_refcount(op->skill);
669	if(op->lore!=NULL) add_refcount(op->lore);
670	if(op->msg!=NULL) add_refcount(op->msg);
671	if(op->custom_name!=NULL) add_refcount(op->custom_name);
672	if (op->materialname != NULL) add_refcount(op->materialname);
673
674	if((op2->speed<0) && !editor)
675	op->speed_left=op2->speed_left-RANDOM()%200/100.0;	495	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
676		496
677	/* Copy over event information */
678	evt2 = NULL;
679	for (evt = op2->events; evt; evt=evt->next) {
680	evt_new = (event *) malloc(sizeof(event));
681	memcpy(evt_new, evt, sizeof(event));
682	if (evt_new->hook) add_refcount(evt_new->hook);
683	if (evt_new->plugin) add_refcount(evt_new->plugin);
684	if (evt_new->options) add_refcount(evt_new->options);
685	evt_new->next = NULL;
686
687	/* Try to be a little clever here, and store away the
688	* last event we copied, so that its simpler to update the
689	* pointer.
690	*/
691	if (evt2)
692	evt2->next = evt_new;
693	else
694	op->events = evt_new;
695
696	evt2 = evt_new;
697	}
698	/* Copy over key_values, if any. */	497	/* Copy over key_values, if any. */
699	if (op2->key_values != NULL) {	498	if (key_values)
		499	{
700	key_value * tail = NULL;	500	key_value *tail = 0;
701	key_value * i;	501	key_value *i;
702		502
703	op->key_values = NULL;	503	dst->key_values = 0;
704		504
705	for (i = op2->key_values; i != NULL; i = i->next) {	505	for (i = key_values; i; i = i->next)
706	key_value * new_link = (key_value *) malloc(sizeof(key_value));	506	{
		507	key_value *new_link = new key_value;
707		508
708	new_link->next = NULL;	509	new_link->next = 0;
709	new_link->key = add_refcount(i->key);	510	new_link->key = i->key;
710	if (i->value)
711	new_link->value = add_refcount(i->value);	511	new_link->value = i->value;
712	else
713	new_link->value = NULL;
714		512
715	/* Try and be clever here, too. */	513	/* Try and be clever here, too. */
716	if (op->key_values == NULL) {	514	if (!dst->key_values)
		515	{
717	op->key_values = new_link;	516	dst->key_values = new_link;
718	tail = new_link;	517	tail = new_link;
		518	}
719	} else {	519	else
		520	{
720	tail->next = new_link;	521	tail->next = new_link;
721	tail = new_link;	522	tail = new_link;
722	}	523	}
723	}	524	}
724	}	525	}
725		526
726	update_ob_speed(op);	527	update_ob_speed (dst);
727	}	528	}
728		529
729	/*
730	* expand_objects() allocates more objects for the list of unused objects.
731	* It is called from get_object() if the unused list is empty.
732	*/
733
734	void expand_objects(void) {
735	int i;
736	object *obj;
737	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));
738
739	if(obj==NULL)
740	fatal(OUT_OF_MEMORY);
741	free_objects=obj;
742	obj[0].prev=NULL;
743	obj[0].next= &obj[1],
744	SET_FLAG(&(obj[0]), FLAG_REMOVED);
745	SET_FLAG(&(obj[0]), FLAG_FREED);
746
747	for(i=1;i<OBJ_EXPAND-1;i++) {
748	obj[i].next= &obj[i+1],
749	obj[i].prev= &obj[i-1],
750	SET_FLAG(&(obj[i]), FLAG_REMOVED);
751	SET_FLAG(&(obj[i]), FLAG_FREED);
752	}
753	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
754	obj[OBJ_EXPAND-1].next=NULL,
755	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
756	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
757
758	nrofallocobjects += OBJ_EXPAND;
759	nroffreeobjects += OBJ_EXPAND;
760	}
761
762	/*
763	* get_object() grabs an object from the list of unused objects, makes
764	* sure it is initialised, and returns it.
765	* If there are no free objects, expand_objects() is called to get more.
766	*/
767
768	object *get_object(void) {
769	object *op;	530	object *
770		531	object::clone ()
771	if(free_objects==NULL) {	532	{
772	expand_objects();	533	object *neu = create ();
773	}	534	copy_to (neu);
774	op=free_objects;
775	#ifdef MEMORY_DEBUG
776	/* The idea is hopefully by doing a realloc, the memory
777	* debugging program will now use the current stack trace to
778	* report leaks.
779	*/
780	op = realloc(op, sizeof(object));
781	SET_FLAG(op, FLAG_REMOVED);
782	SET_FLAG(op, FLAG_FREED);
783	#endif
784
785	if(!QUERY_FLAG(op,FLAG_FREED)) {
786	LOG(llevError,"Fatal: Getting busy object.\n");
787	}
788	free_objects=op->next;
789	if(free_objects!=NULL)
790	free_objects->prev=NULL;
791	op->count= ++ob_count;
792	op->name=NULL;
793	op->name_pl=NULL;
794	op->title=NULL;
795	op->race=NULL;
796	op->slaying=NULL;
797	op->skill = NULL;
798	op->lore=NULL;
799	op->msg=NULL;
800	op->materialname=NULL;
801	op->next=objects;
802	op->prev=NULL;
803	op->active_next = NULL;
804	op->active_prev = NULL;
805	if(objects!=NULL)
806	objects->prev=op;
807	objects=op;
808	clear_object(op);
809	SET_FLAG(op,FLAG_REMOVED);
810	nroffreeobjects--;
811	return op;	535	return neu;
812	}	536	}
813		537
814	/*	538	/*
815	* If an object with the IS_TURNABLE() flag needs to be turned due	539	* If an object with the IS_TURNABLE() flag needs to be turned due
816	* to the closest player being on the other side, this function can	540	* to the closest player being on the other side, this function can
817	* be called to update the face variable, _and_ how it looks on the map.	541	* be called to update the face variable, _and_ how it looks on the map.
818	*/	542	*/
819		543
		544	void
820	void update_turn_face(object *op) {	545	update_turn_face (object *op)
		546	{
821	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	547	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
822	return;	548	return;
823	SET_ANIMATION(op, op->direction);	549	SET_ANIMATION (op, op->direction);
824	update_object(op,UP_OBJ_FACE);	550	update_object (op, UP_OBJ_FACE);
825	}	551	}
826		552
827	/*	553	/*
828	* Updates the speed of an object. If the speed changes from 0 to another	554	* Updates the speed of an object. If the speed changes from 0 to another
829	* value, or vice versa, then add/remove the object from the active list.	555	* value, or vice versa, then add/remove the object from the active list.
830	* This function needs to be called whenever the speed of an object changes.	556	* This function needs to be called whenever the speed of an object changes.
831	*/	557	*/
832		558	void
833	void update_ob_speed(object *op) {	559	update_ob_speed (object *op)
		560	{
834	extern int arch_init;	561	extern int arch_init;
835		562
836	/* No reason putting the archetypes objects on the speed list,	563	/* No reason putting the archetypes objects on the speed list,
837	* since they never really need to be updated.	564	* since they never really need to be updated.
838	*/	565	*/
839
840	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	566	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		567	{
841	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	568	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
842	#ifdef MANY_CORES
843	abort();
844	#else
845	op->speed = 0;	569	op->speed = 0;
846	#endif
847	}	570	}
		571
848	if (arch_init) {	572	if (arch_init)
		573	return;
		574
		575	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		576	{
		577	/* If already on active list, don't do anything */
		578	if (op->active_next || op->active_prev || op == active_objects)
849	return;	579	return;
850	}
851	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
852	/* If already on active list, don't do anything */
853	if (op->active_next || op->active_prev || op==active_objects)
854	return;
855		580
856	/* process_events() expects us to insert the object at the beginning	581	/* process_events() expects us to insert the object at the beginning
857	* of the list. */	582	* of the list. */
858	op->active_next = active_objects;	583	op->active_next = active_objects;
		584
859	if (op->active_next!=NULL)	585	if (op->active_next != NULL)
860	op->active_next->active_prev = op;	586	op->active_next->active_prev = op;
		587
861	active_objects = op;	588	active_objects = op;
		589	}
		590	else
862	}	591	{
863	else {
864	/* If not on the active list, nothing needs to be done */	592	/* If not on the active list, nothing needs to be done */
865	if (!op->active_next && !op->active_prev && op!=active_objects)	593	if (!op->active_next && !op->active_prev && op != active_objects)
866	return;	594	return;
867		595
868	if (op->active_prev==NULL) {	596	if (op->active_prev == NULL)
		597	{
869	active_objects = op->active_next;	598	active_objects = op->active_next;
		599
870	if (op->active_next!=NULL)	600	if (op->active_next != NULL)
871	op->active_next->active_prev = NULL;	601	op->active_next->active_prev = NULL;
872	}	602	}
873	else {	603	else
		604	{
874	op->active_prev->active_next = op->active_next;	605	op->active_prev->active_next = op->active_next;
		606
875	if (op->active_next)	607	if (op->active_next)
876	op->active_next->active_prev = op->active_prev;	608	op->active_next->active_prev = op->active_prev;
877	}	609	}
		610
878	op->active_next = NULL;	611	op->active_next = NULL;
879	op->active_prev = NULL;	612	op->active_prev = NULL;
880	}	613	}
881	}	614	}
882		615
883	/* This function removes object 'op' from the list of active	616	/* This function removes object 'op' from the list of active
884	* objects.	617	* objects.
…		…
886	* reference maps where you don't want an object that isn't	619	* reference maps where you don't want an object that isn't
887	* in play chewing up cpu time getting processed.	620	* in play chewing up cpu time getting processed.
888	* The reverse of this is to call update_ob_speed, which	621	* The reverse of this is to call update_ob_speed, which
889	* will do the right thing based on the speed of the object.	622	* will do the right thing based on the speed of the object.
890	*/	623	*/
		624	void
891	void remove_from_active_list(object *op)	625	remove_from_active_list (object *op)
892	{	626	{
893	/* If not on the active list, nothing needs to be done */	627	/* If not on the active list, nothing needs to be done */
894	if (!op->active_next && !op->active_prev && op!=active_objects)	628	if (!op->active_next && !op->active_prev && op != active_objects)
895	return;	629	return;
896		630
897	if (op->active_prev==NULL) {	631	if (op->active_prev == NULL)
		632	{
898	active_objects = op->active_next;	633	active_objects = op->active_next;
899	if (op->active_next!=NULL)	634	if (op->active_next != NULL)
900	op->active_next->active_prev = NULL;	635	op->active_next->active_prev = NULL;
		636	}
		637	else
901	}	638	{
902	else {
903	op->active_prev->active_next = op->active_next;	639	op->active_prev->active_next = op->active_next;
904	if (op->active_next)	640	if (op->active_next)
905	op->active_next->active_prev = op->active_prev;	641	op->active_next->active_prev = op->active_prev;
906	}	642	}
907	op->active_next = NULL;	643	op->active_next = NULL;
908	op->active_prev = NULL;	644	op->active_prev = NULL;
909	}	645	}
910		646
911	/*	647	/*
912	* update_object() updates the array which represents the map.	648	* update_object() updates the the map.
913	* It takes into account invisible objects (and represent squares covered	649	* It takes into account invisible objects (and represent squares covered
914	* by invisible objects by whatever is below them (unless it's another	650	* by invisible objects by whatever is below them (unless it's another
915	* invisible object, etc...)	651	* invisible object, etc...)
916	* If the object being updated is beneath a player, the look-window	652	* If the object being updated is beneath a player, the look-window
917	* of that player is updated (this might be a suboptimal way of	653	* of that player is updated (this might be a suboptimal way of
918	* updating that window, though, since update_object() is called _often_)	654	* updating that window, though, since update_object() is called _often_)
919	*	655	*
920	* action is a hint of what the caller believes need to be done.	656	* action is a hint of what the caller believes need to be done.
921	* For example, if the only thing that has changed is the face (due to
922	* an animation), we don't need to call update_position until that actually
923	* comes into view of a player. OTOH, many other things, like addition/removal
924	* of walls or living creatures may need us to update the flags now.
925	* current action are:	657	* current action are:
926	* UP_OBJ_INSERT: op was inserted	658	* UP_OBJ_INSERT: op was inserted
927	* UP_OBJ_REMOVE: op was removed	659	* UP_OBJ_REMOVE: op was removed
928	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	660	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
929	* as that is easier than trying to look at what may have changed.	661	* as that is easier than trying to look at what may have changed.
930	* UP_OBJ_FACE: only the objects face has changed.	662	* UP_OBJ_FACE: only the objects face has changed.
931	*/	663	*/
932		664	void
933	void update_object(object *op, int action) {	665	update_object (object *op, int action)
934	int update_now=0, flags;	666	{
935	MoveType move_on, move_off, move_block, move_slow;	667	MoveType move_on, move_off, move_block, move_slow;
936		668
937	if (op == NULL) {	669	if (op == NULL)
		670	{
938	/* this should never happen */	671	/* this should never happen */
939	LOG(llevDebug,"update_object() called for NULL object.\n");	672	LOG (llevDebug, "update_object() called for NULL object.\n");
940	return;	673	return;
941	}
942		674	}
943	if(op->env!=NULL) {	675
		676	if (op->env)
		677	{
944	/* Animation is currently handled by client, so nothing	678	/* Animation is currently handled by client, so nothing
945	* to do in this case.	679	* to do in this case.
946	*/	680	*/
947	return;	681	return;
948	}	682	}
949		683
950	/* If the map is saving, don't do anything as everything is	684	/* If the map is saving, don't do anything as everything is
951	* going to get freed anyways.	685	* going to get freed anyways.
952	*/	686	*/
953	if (!op->map || op->map->in_memory == MAP_SAVING) return;	687	if (!op->map || op->map->in_memory == MAP_SAVING)
954		688	return;
		689
955	/* make sure the object is within map boundaries */	690	/* make sure the object is within map boundaries */
956	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	691	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
957	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	692	{
958	LOG(llevError,"update_object() called for object out of map!\n");	693	LOG (llevError, "update_object() called for object out of map!\n");
959	#ifdef MANY_CORES	694	#ifdef MANY_CORES
960	abort();	695	abort ();
961	#endif	696	#endif
962	return;	697	return;
963	}
964		698	}
965	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
966	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
967	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
968	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
969	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
970	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
971		699
		700	mapspace &m = op->ms ();
		701
		702	if (m.flags_ & P_NEED_UPDATE)
		703	/* nop */;
972	if (action == UP_OBJ_INSERT) {	704	else if (action == UP_OBJ_INSERT)
		705	{
		706	// this is likely overkill, TODO: revisit (schmorp)
973	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	707	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
974	update_now=1;
975
976	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	708	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
977	update_now=1;	709	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
978		710	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		711	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
979	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	712	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
980	update_now=1;	713	|| (m.move_on | op->move_on ) != m.move_on
981
982	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
983	update_now=1;
984
985	if ((move_on | op->move_on) != move_on) update_now=1;
986	if ((move_off | op->move_off) != move_off) update_now=1;	714	|| (m.move_off | op->move_off ) != m.move_off
		715	|| (m.move_slow | op->move_slow) != m.move_slow
987	/* This isn't perfect, but I don't expect a lot of objects to	716	/* This isn't perfect, but I don't expect a lot of objects to
988	* to have move_allow right now.	717	* to have move_allow right now.
989	*/	718	*/
990	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	719	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
991	update_now=1;	720	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
992	if ((move_slow | op->move_slow) != move_slow) update_now=1;	721	m.flags_ = P_NEED_UPDATE;
993	}	722	}
994	/* if the object is being removed, we can't make intelligent	723	/* if the object is being removed, we can't make intelligent
995	* decisions, because remove_ob can't really pass the object	724	* decisions, because remove_ob can't really pass the object
996	* that is being removed.	725	* that is being removed.
997	*/	726	*/
998	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	727	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
999	update_now=1;	728	m.flags_ = P_NEED_UPDATE;
1000	} else if (action == UP_OBJ_FACE) {	729	else if (action == UP_OBJ_FACE)
1001	/* Nothing to do for that case */	730	/* Nothing to do for that case */ ;
1002	}
1003	else {	731	else
1004	LOG(llevError,"update_object called with invalid action: %d\n", action);	732	LOG (llevError, "update_object called with invalid action: %d\n", action);
1005	}
1006		733
1007	if (update_now) {
1008	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1009	update_position(op->map, op->x, op->y);
1010	}
1011
1012	if(op->more!=NULL)	734	if (op->more)
1013	update_object(op->more, action);	735	update_object (op->more, action);
1014	}	736	}
1015		737
		738	object::vector object::objects; // not yet used
		739	object *object::first;
		740
		741	object::object ()
		742	{
		743	SET_FLAG (this, FLAG_REMOVED);
		744
		745	expmul = 1.0;
		746	face = blank_face;
		747	}
		748
		749	object::~object ()
		750	{
		751	free_key_values (this);
		752	}
		753
		754	void object::link ()
		755	{
		756	count = ++ob_count;
		757	uuid = gen_uuid ();
		758
		759	prev = 0;
		760	next = object::first;
		761
		762	if (object::first)
		763	object::first->prev = this;
		764
		765	object::first = this;
		766	}
		767
		768	void object::unlink ()
		769	{
		770	if (this == object::first)
		771	object::first = next;
		772
		773	/* Remove this object from the list of used objects */
		774	if (prev) prev->next = next;
		775	if (next) next->prev = prev;
		776
		777	prev = 0;
		778	next = 0;
		779	}
		780
		781	object *object::create ()
		782	{
		783	object *op = new object;
		784	op->link ();
		785	return op;
		786	}
1016		787
1017	/*	788	/*
1018	* free_object() frees everything allocated by an object, removes	789	* free_object() frees everything allocated by an object, removes
1019	* it from the list of used objects, and puts it on the list of	790	* it from the list of used objects, and puts it on the list of
1020	* free objects. The IS_FREED() flag is set in the object.	791	* free objects. The IS_FREED() flag is set in the object.
1021	* The object must have been removed by remove_ob() first for	792	* The object must have been removed by remove_ob() first for
1022	* this function to succeed.	793	* this function to succeed.
1023	*	794	*
1024	* If free_inventory is set, free inventory as well. Else drop items in	795	* If destroy_inventory is set, free inventory as well. Else drop items in
1025	* inventory to the ground.	796	* inventory to the ground.
1026	*/	797	*/
		798	void
		799	object::do_destroy ()
		800	{
		801	attachable::do_destroy ();
1027		802
1028	void free_object(object *ob) {	803	if (flag [FLAG_IS_LINKED])
1029	free_object2(ob, 0);	804	remove_button_link (this);
1030	}
1031	void free_object2(object *ob, int free_inventory) {
1032	object *tmp,*op;
1033		805
1034	ob->clear ();	806	if (flag [FLAG_FRIENDLY])
1035
1036	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {
1037	LOG(llevDebug,"Free object called with non removed object\n");
1038	dump_object(ob);
1039	#ifdef MANY_CORES
1040	abort();
1041	#endif
1042	}
1043	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {
1044	LOG(llevMonster,"Warning: tried to free friendly object.\n");
1045	remove_friendly_object(ob);	807	remove_friendly_object (this);
1046	}	808
1047	if(QUERY_FLAG(ob,FLAG_FREED)) {	809	if (!flag [FLAG_REMOVED])
1048	dump_object(ob);	810	remove ();
1049	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);	811
		812	if (flag [FLAG_FREED])
1050	return;	813	return;
		814
		815	flag [FLAG_FREED] = 1;
		816
		817	// hack to ensure that freed objects still have a valid map
		818	{
		819	static maptile *freed_map; // freed objects are moved here to avoid crashes
		820
		821	if (!freed_map)
		822	{
		823	freed_map = new maptile;
		824
		825	freed_map->name = "/internal/freed_objects_map";
		826	freed_map->width = 3;
		827	freed_map->height = 3;
		828
		829	freed_map->allocate ();
1051	}	830	}
1052	if(ob->more!=NULL) {	831
1053	free_object2(ob->more, free_inventory);	832	map = freed_map;
1054	ob->more=NULL;	833	x = 1;
		834	y = 1;
1055	}	835	}
1056	if (ob->inv) {	836
		837	more = 0;
		838	head = 0;
		839	inv = 0;
		840
		841	// clear those pointers that likely might have circular references to us
		842	owner = 0;
		843	enemy = 0;
		844	attacked_by = 0;
		845
		846	// only relevant for players(?), but make sure of it anyways
		847	contr = 0;
		848
		849	/* Remove object from the active list */
		850	speed = 0;
		851	update_ob_speed (this);
		852
		853	unlink ();
		854	}
		855
		856	/*
		857	* Remove and free all objects in the inventory of the given object.
		858	* object.c ?
		859	*/
		860	void
		861	object::destroy_inv (bool drop_to_ground)
		862	{
		863	if (!inv)
		864	return;
		865
1057	/* Only if the space blocks everything do we not process -	866	/* Only if the space blocks everything do we not process -
1058	* if some form of movemnt is allowed, let objects	867	* if some form of movement is allowed, let objects
1059	* drop on that space.	868	* drop on that space.
1060	*/	869	*/
1061	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	870	if (!drop_to_ground || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
1062	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	871	{
		872	while (inv)
1063	{	873	{
1064	op=ob->inv;	874	inv->destroy_inv (drop_to_ground);
1065	while(op!=NULL) {	875	inv->destroy ();
1066	tmp=op->below;	876	}
		877	}
		878	else
		879	{ /* Put objects in inventory onto this space */
		880	while (inv)
		881	{
		882	object *op = inv;
		883
		884	if (op->flag [FLAG_STARTEQUIP]
		885	|| op->flag [FLAG_NO_DROP]
		886	|| op->type == RUNE
		887	|| op->type == TRAP
		888	|| op->flag [FLAG_IS_A_TEMPLATE])
		889	op->destroy ();
		890	else
		891	{
1067	remove_ob(op);	892	op->remove ();
1068	free_object2(op, free_inventory);
1069	op=tmp;	893	op->x = x;
		894	op->y = y;
		895	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
1070	}	896	}
1071	}	897	}
1072	else { /* Put objects in inventory onto this space */
1073	op=ob->inv;
1074	while(op!=NULL) {
1075	tmp=op->below;
1076	remove_ob(op);
1077	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||
1078	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))
1079	free_object(op);
1080	else {
1081	op->x=ob->x;
1082	op->y=ob->y;
1083	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */
1084	}
1085	op=tmp;
1086	}
1087	}
1088	}
1089	/* Remove object from the active list */
1090	ob->speed = 0;
1091	update_ob_speed(ob);
1092
1093	SET_FLAG(ob, FLAG_FREED);
1094	ob->count = 0;
1095
1096	/* Remove this object from the list of used objects */
1097	if(ob->prev==NULL) {
1098	objects=ob->next;
1099	if(objects!=NULL)
1100	objects->prev=NULL;
1101	}
1102	else {
1103	ob->prev->next=ob->next;
1104	if(ob->next!=NULL)
1105	ob->next->prev=ob->prev;
1106	}
1107
1108	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1109	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1110	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1111	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1112	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1113	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1114	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1115	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1116	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1117
1118		898	}
1119	/* Why aren't events freed? */
1120	free_key_values(ob);
1121
1122	#if 0 /* MEMORY_DEBUG*/
1123	/* This is a nice idea. Unfortunately, a lot of the code in crossfire
1124	* presumes the freed_object will stick around for at least a little
1125	* bit
1126	*/
1127	/* this is necessary so that memory debugging programs will
1128	* be able to accurately report source of malloc. If we recycle
1129	* objects, then some other area may be doing the get_object
1130	* and not freeing it, but the original one that malloc'd the
1131	* object will get the blame.
1132	*/
1133	free(ob);
1134	#else
1135
1136	/* Now link it with the free_objects list: */
1137	ob->prev=NULL;
1138	ob->next=free_objects;
1139	if(free_objects!=NULL)
1140	free_objects->prev=ob;
1141	free_objects=ob;
1142	nroffreeobjects++;
1143	#endif
1144	}	899	}
1145		900
1146	/*	901	void
1147	* count_free() returns the number of objects on the list of free objects.	902	object::destroy (bool destroy_inventory)
1148	*/	903	{
1149		904	if (destroyed ())
1150	int count_free(void) {
1151	int i=0;
1152	object *tmp=free_objects;
1153	while(tmp!=NULL)
1154	tmp=tmp->next, i++;
1155	return i;	905	return;
1156	}
1157		906
1158	/*	907	if (more)
1159	* count_used() returns the number of objects on the list of used objects.	908	{
1160	*/	909	//TODO: non-head objects must not have inventory
		910	more->destroy (destroy_inventory);
		911	more = 0;
		912	}
1161		913
1162	int count_used(void) {	914	if (destroy_inventory)
1163	int i=0;	915	destroy_inv (true);
1164	object *tmp=objects;
1165	while(tmp!=NULL)
1166	tmp=tmp->next, i++;
1167	return i;
1168	}
1169		916
1170	/*	917	attachable::destroy ();
1171	* count_active() returns the number of objects on the list of active objects.
1172	*/
1173
1174	int count_active(void) {
1175	int i=0;
1176	object *tmp=active_objects;
1177	while(tmp!=NULL)
1178	tmp=tmp->active_next, i++;
1179	return i;
1180	}	918	}
1181		919
1182	/*	920	/*
1183	* sub_weight() recursively (outwards) subtracts a number from the	921	* sub_weight() recursively (outwards) subtracts a number from the
1184	* weight of an object (and what is carried by it's environment(s)).	922	* weight of an object (and what is carried by it's environment(s)).
1185	*/	923	*/
1186		924	void
1187	void sub_weight (object *op, signed long weight) {	925	sub_weight (object *op, signed long weight)
		926	{
1188	while (op != NULL) {	927	while (op != NULL)
		928	{
1189	if (op->type == CONTAINER) {	929	if (op->type == CONTAINER)
1190	weight=(signed long)(weight*(100-op->stats.Str)/100);	930	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1191	}	931
1192	op->carrying-=weight;	932	op->carrying -= weight;
1193	op = op->env;	933	op = op->env;
1194	}	934	}
1195	}	935	}
1196		936
1197	/* remove_ob(op):	937	/* op->remove ():
1198	* This function removes the object op from the linked list of objects	938	* This function removes the object op from the linked list of objects
1199	* which it is currently tied to. When this function is done, the	939	* which it is currently tied to. When this function is done, the
1200	* object will have no environment. If the object previously had an	940	* object will have no environment. If the object previously had an
1201	* environment, the x and y coordinates will be updated to	941	* environment, the x and y coordinates will be updated to
1202	* the previous environment.	942	* the previous environment.
1203	* Beware: This function is called from the editor as well!	943	* Beware: This function is called from the editor as well!
1204	*/	944	*/
1205		945	void
1206	void remove_ob(object *op) {	946	object::remove ()
		947	{
1207	object *tmp,*last=NULL;	948	object *tmp, *last = 0;
1208	object *otmp;	949	object *otmp;
1209	tag_t tag;
1210	int check_walk_off;
1211	mapstruct *m;
1212	sint16 x,y;
1213
1214		950
1215	if(QUERY_FLAG(op,FLAG_REMOVED)) {	951	if (QUERY_FLAG (this, FLAG_REMOVED))
1216	dump_object(op);	952	return;
1217	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1218		953
1219	/* Changed it to always dump core in this case. As has been learned
1220	* in the past, trying to recover from errors almost always
1221	* make things worse, and this is a real error here - something
1222	* that should not happen.
1223	* Yes, if this was a mission critical app, trying to do something
1224	* to recover may make sense, but that is because failure of the app
1225	* may have other disastrous problems. Cf runs out of a script
1226	* so is easily enough restarted without any real problems.
1227	* MSW 2001-07-01
1228	*/
1229	abort();
1230	}
1231	if(op->more!=NULL)
1232	remove_ob(op->more);
1233
1234	SET_FLAG(op, FLAG_REMOVED);	954	SET_FLAG (this, FLAG_REMOVED);
		955	INVOKE_OBJECT (REMOVE, this);
1235		956
		957	if (more)
		958	more->remove ();
		959
1236	/*	960	/*
1237	* In this case, the object to be removed is in someones	961	* In this case, the object to be removed is in someones
1238	* inventory.	962	* inventory.
1239	*/	963	*/
1240	if(op->env!=NULL) {	964	if (env)
		965	{
1241	if(op->nrof)	966	if (nrof)
1242	sub_weight(op->env, op->weight*op->nrof);	967	sub_weight (env, weight * nrof);
1243	else	968	else
1244	sub_weight(op->env, op->weight+op->carrying);	969	sub_weight (env, weight + carrying);
1245		970
1246	/* NO_FIX_PLAYER is set when a great many changes are being	971	/* NO_FIX_PLAYER is set when a great many changes are being
1247	* made to players inventory. If set, avoiding the call	972	* made to players inventory. If set, avoiding the call
1248	* to save cpu time.	973	* to save cpu time.
1249	*/	974	*/
1250	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	975	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1251	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	976	otmp->update_stats ();
1252	fix_player(otmp);
1253		977
1254	if(op->above!=NULL)	978	if (above != NULL)
1255	op->above->below=op->below;	979	above->below = below;
1256	else	980	else
1257	op->env->inv=op->below;	981	env->inv = below;
1258		982
1259	if(op->below!=NULL)	983	if (below != NULL)
1260	op->below->above=op->above;	984	below->above = above;
1261		985
1262	/* we set up values so that it could be inserted into	986	/* we set up values so that it could be inserted into
1263	* the map, but we don't actually do that - it is up	987	* the map, but we don't actually do that - it is up
1264	* to the caller to decide what we want to do.	988	* to the caller to decide what we want to do.
		989	*/
		990	x = env->x, y = env->y;
		991	map = env->map;
		992	above = 0, below = 0;
		993	env = 0;
		994	}
		995	else if (map)
		996	{
		997	/* Re did the following section of code - it looks like it had
		998	* lots of logic for things we no longer care about
		999	*/
		1000
		1001	/* link the object above us */
		1002	if (above)
		1003	above->below = below;
		1004	else
		1005	map->at (x, y).top = below; /* we were top, set new top */
		1006
		1007	/* Relink the object below us, if there is one */
		1008	if (below)
		1009	below->above = above;
		1010	else
		1011	{
		1012	/* Nothing below, which means we need to relink map object for this space
		1013	* use translated coordinates in case some oddness with map tiling is
		1014	* evident
1265	*/	1015	*/
1266	op->x=op->env->x,op->y=op->env->y;	1016	if (GET_MAP_OB (map, x, y) != this)
1267	op->ox=op->x,op->oy=op->y;	1017	{
1268	op->map=op->env->map;	1018	char *dump = dump_object (this);
1269	op->above=NULL,op->below=NULL;	1019	LOG (llevError,
1270	op->env=NULL;	1020	"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);
		1021	free (dump);
		1022	dump = dump_object (GET_MAP_OB (map, x, y));
		1023	LOG (llevError, "%s\n", dump);
		1024	free (dump);
		1025	}
		1026
		1027	map->at (x, y).bot = above; /* goes on above it. */
		1028	}
		1029
		1030	above = 0;
		1031	below = 0;
		1032
		1033	if (map->in_memory == MAP_SAVING)
1271	return;	1034	return;
1272	}
1273		1035
1274	/* If we get here, we are removing it from a map */	1036	int check_walk_off = !flag [FLAG_NO_APPLY];
1275	if (op->map == NULL) return;
1276		1037
1277	x = op->x;	1038	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
1278	y = op->y;	1039	{
1279	m = get_map_from_coord(op->map, &x, &y);	1040	/* No point updating the players look faces if he is the object
1280		1041	* being removed.
1281	if (!m) {
1282	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1283	op->map->path, op->x, op->y);
1284	/* in old days, we used to set x and y to 0 and continue.
1285	* it seems if we get into this case, something is probablye
1286	* screwed up and should be fixed.
1287	*/	1042	*/
1288	abort();
1289	}
1290	if (op->map != m) {
1291	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1292	op->map->path, m->path, op->x, op->y, x, y);
1293	}
1294		1043
1295	/* Re did the following section of code - it looks like it had	1044	if (tmp->type == PLAYER && tmp != this)
1296	* lots of logic for things we no longer care about	1045	{
1297	*/	1046	/* If a container that the player is currently using somehow gets
1298		1047	* removed (most likely destroyed), update the player view
1299	/* link the object above us */	1048	* appropriately.
1300	if (op->above)
1301	op->above->below=op->below;
1302	else
1303	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1304
1305	/* Relink the object below us, if there is one */
1306	if(op->below) {
1307	op->below->above=op->above;
1308	} else {
1309	/* Nothing below, which means we need to relink map object for this space
1310	* use translated coordinates in case some oddness with map tiling is
1311	* evident
1312	*/	1049	*/
1313	if(GET_MAP_OB(m,x,y)!=op) {	1050	if (tmp->container == this)
1314	dump_object(op);	1051	{
1315	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);	1052	flag [FLAG_APPLIED] = 0;
1316	dump_object(GET_MAP_OB(m,x,y));	1053	tmp->container = 0;
1317	LOG(llevError,"%s\n",errmsg);	1054	}
		1055
		1056	if (tmp->contr->ns)
		1057	tmp->contr->ns->floorbox_update ();
		1058	}
		1059
		1060	/* See if player moving off should effect something */
		1061	if (check_walk_off
		1062	&& ((move_type & tmp->move_off)
		1063	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1064	{
		1065	move_apply (tmp, this, 0);
		1066
		1067	if (destroyed ())
		1068	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
		1069	}
		1070
		1071	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
		1072
		1073	if (tmp->above == tmp)
		1074	tmp->above = 0;
		1075
		1076	last = tmp;
1318	}	1077	}
1319	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1320	}
1321	op->above=NULL;
1322	op->below=NULL;
1323		1078
1324	if (op->map->in_memory == MAP_SAVING)
1325	return;
1326
1327	tag = op->count;
1328	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1329	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1330	/* No point updating the players look faces if he is the object
1331	* being removed.
1332	*/
1333
1334	if(tmp->type==PLAYER && tmp!=op) {
1335	/* If a container that the player is currently using somehow gets
1336	* removed (most likely destroyed), update the player view
1337	* appropriately.
1338	*/
1339	if (tmp->container==op) {
1340	CLEAR_FLAG(op, FLAG_APPLIED);
1341	tmp->container=NULL;
1342	}
1343	tmp->contr->socket.update_look=1;
1344	}
1345	/* See if player moving off should effect something */
1346	if (check_walk_off && ((op->move_type & tmp->move_off) &&
1347	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {
1348
1349	move_apply(tmp, op, NULL);
1350	if (was_destroyed (op, tag)) {
1351	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "
1352	"leaving object\n", tmp->name, tmp->arch->name);
1353	}
1354	}
1355
1356	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1357
1358	if(tmp->above == tmp)
1359	tmp->above = NULL;
1360	last=tmp;
1361	}
1362	/* last == NULL of there are no objects on this space */	1079	/* last == NULL of there are no objects on this space */
1363	if (last==NULL) {	1080	if (!last)
1364	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1081	map->at (x, y).flags_ = P_NEED_UPDATE;
1365	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1366	* those out anyways, and if there are any flags set right now, they won't
1367	* be correct anyways.
1368	*/
1369	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1370	update_position(op->map, op->x, op->y);
1371	}
1372	else	1082	else
1373	update_object(last, UP_OBJ_REMOVE);	1083	update_object (last, UP_OBJ_REMOVE);
1374		1084
1375	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1085	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1376	update_all_los(op->map, op->x, op->y);	1086	update_all_los (map, x, y);
1377		1087	}
1378	}	1088	}
1379		1089
1380	/*	1090	/*
1381	* merge_ob(op,top):	1091	* merge_ob(op,top):
1382	*	1092	*
1383	* This function goes through all objects below and including top, and	1093	* This function goes through all objects below and including top, and
1384	* merges op to the first matching object.	1094	* merges op to the first matching object.
1385	* If top is NULL, it is calculated.	1095	* If top is NULL, it is calculated.
1386	* Returns pointer to object if it succeded in the merge, otherwise NULL	1096	* Returns pointer to object if it succeded in the merge, otherwise NULL
1387	*/	1097	*/
1388		1098	object *
1389	object *merge_ob(object *op, object *top) {	1099	merge_ob (object *op, object *top)
		1100	{
1390	if(!op->nrof)	1101	if (!op->nrof)
1391	return 0;	1102	return 0;
1392	if(top==NULL)	1103
		1104	if (top)
1393	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1105	for (top = op; top && top->above; top = top->above)
		1106	;
		1107
1394	for(;top!=NULL;top=top->below) {	1108	for (; top; top = top->below)
		1109	{
1395	if(top==op)	1110	if (top == op)
1396	continue;	1111	continue;
1397	if (CAN_MERGE(op,top))	1112
1398	{	1113	if (object::can_merge (op, top))
		1114	{
1399	top->nrof+=op->nrof;	1115	top->nrof += op->nrof;
		1116
1400	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1117	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1401	op->weight = 0; /* Don't want any adjustements now */	1118	op->weight = 0; /* Don't want any adjustements now */
1402	remove_ob(op);	1119	op->destroy ();
1403	free_object(op);
1404	return top;	1120	return top;
1405	}	1121	}
1406	}	1122	}
		1123
1407	return NULL;	1124	return 0;
1408	}	1125	}
1409		1126
1410	/*	1127	/*
1411	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1128	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1412	* job preparing multi-part monsters	1129	* job preparing multi-part monsters
1413	*/	1130	*/
		1131	object *
1414	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1132	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1133	{
1415	object* tmp;	1134	object *tmp;
		1135
1416	if (op->head)	1136	if (op->head)
1417	op=op->head;	1137	op = op->head;
		1138
1418	for (tmp=op;tmp;tmp=tmp->more){	1139	for (tmp = op; tmp; tmp = tmp->more)
		1140	{
1419	tmp->x=x+tmp->arch->clone.x;	1141	tmp->x = x + tmp->arch->clone.x;
1420	tmp->y=y+tmp->arch->clone.y;	1142	tmp->y = y + tmp->arch->clone.y;
1421	}	1143	}
		1144
1422	return insert_ob_in_map (op, m, originator, flag);	1145	return insert_ob_in_map (op, m, originator, flag);
1423	}	1146	}
1424		1147
1425	/*	1148	/*
1426	* insert_ob_in_map (op, map, originator, flag):	1149	* insert_ob_in_map (op, map, originator, flag):
1427	* This function inserts the object in the two-way linked list	1150	* This function inserts the object in the two-way linked list
…		…
1440	* Return value:	1163	* Return value:
1441	* new object if 'op' was merged with other object	1164	* new object if 'op' was merged with other object
1442	* NULL if 'op' was destroyed	1165	* NULL if 'op' was destroyed
1443	* just 'op' otherwise	1166	* just 'op' otherwise
1444	*/	1167	*/
1445		1168	object *
1446	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1169	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1447	{	1170	{
1448	object *tmp, *top, *floor=NULL;	1171	object *tmp, *top, *floor = NULL;
1449	sint16 x,y;	1172	sint16 x, y;
1450		1173
1451	if (QUERY_FLAG (op, FLAG_FREED)) {	1174	if (QUERY_FLAG (op, FLAG_FREED))
		1175	{
1452	LOG (llevError, "Trying to insert freed object!\n");	1176	LOG (llevError, "Trying to insert freed object!\n");
1453	return NULL;	1177	return NULL;
		1178	}
		1179
		1180	if (m == NULL)
1454	}	1181	{
1455	if(m==NULL) {
1456	dump_object(op);	1182	char *dump = dump_object (op);
1457	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1183	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1184	free (dump);
1458	return op;	1185	return op;
1459	}	1186	}
		1187
1460	if(out_of_map(m,op->x,op->y)) {	1188	if (out_of_map (m, op->x, op->y))
		1189	{
1461	dump_object(op);	1190	char *dump = dump_object (op);
1462	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1191	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1463	#ifdef MANY_CORES	1192	#ifdef MANY_CORES
1464	/* Better to catch this here, as otherwise the next use of this object	1193	/* Better to catch this here, as otherwise the next use of this object
1465	* is likely to cause a crash. Better to find out where it is getting	1194	* is likely to cause a crash. Better to find out where it is getting
1466	* improperly inserted.	1195	* improperly inserted.
1467	*/	1196	*/
1468	abort();	1197	abort ();
1469	#endif	1198	#endif
		1199	free (dump);
1470	return op;	1200	return op;
1471	}	1201	}
		1202
1472	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1203	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1204	{
1473	dump_object(op);	1205	char *dump = dump_object (op);
1474	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1206	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1207	free (dump);
1475	return op;	1208	return op;
		1209	}
		1210
		1211	if (op->more)
1476	}	1212	{
1477	if(op->more!=NULL) {
1478	/* The part may be on a different map. */	1213	/* The part may be on a different map. */
1479		1214
1480	object *more = op->more;	1215	object *more = op->more;
1481		1216
1482	/* We really need the caller to normalize coordinates - if	1217	/* We really need the caller to normalize coordinates - if
1483	* we set the map, that doesn't work if the location is within	1218	* we set the map, that doesn't work if the location is within
1484	* a map and this is straddling an edge. So only if coordinate	1219	* a map and this is straddling an edge. So only if coordinate
1485	* is clear wrong do we normalize it.	1220	* is clear wrong do we normalize it.
1486	*/	1221	*/
1487	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1222	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1488	/* Debugging information so you can see the last coordinates this object had */
1489	more->ox = more->x;
1490	more->oy = more->y;
1491	more->map = get_map_from_coord(m, &more->x, &more->y);	1223	more->map = get_map_from_coord (m, &more->x, &more->y);
1492	} else if (!more->map) {	1224	else if (!more->map)
		1225	{
1493	/* For backwards compatibility - when not dealing with tiled maps,	1226	/* For backwards compatibility - when not dealing with tiled maps,
1494	* more->map should always point to the parent.	1227	* more->map should always point to the parent.
1495	*/	1228	*/
1496	more->map = m;	1229	more->map = m;
1497	}	1230	}
1498		1231
1499	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1232	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1233	{
1500	if ( ! op->head)	1234	if (!op->head)
1501	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1235	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1236
1502	return NULL;	1237	return 0;
1503	}	1238	}
1504	}	1239	}
		1240
1505	CLEAR_FLAG(op,FLAG_REMOVED);	1241	CLEAR_FLAG (op, FLAG_REMOVED);
1506		1242
1507	/* Debugging information so you can see the last coordinates this object had */
1508	op->ox=op->x;
1509	op->oy=op->y;
1510
1511	/* Ideally, the caller figures this out. However, it complicates a lot	1243	/* Ideally, the caller figures this out. However, it complicates a lot
1512	* of areas of callers (eg, anything that uses find_free_spot would now	1244	* of areas of callers (eg, anything that uses find_free_spot would now
1513	* need extra work	1245	* need extra work
1514	*/	1246	*/
1515	op->map=get_map_from_coord(m, &op->x, &op->y);	1247	op->map = get_map_from_coord (m, &op->x, &op->y);
1516	x = op->x;	1248	x = op->x;
1517	y = op->y;	1249	y = op->y;
1518		1250
1519	/* this has to be done after we translate the coordinates.	1251	/* this has to be done after we translate the coordinates.
1520	*/	1252	*/
1521	if(op->nrof && !(flag & INS_NO_MERGE)) {	1253	if (op->nrof && !(flag & INS_NO_MERGE))
1522	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1254	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1523	if (CAN_MERGE(op,tmp)) {	1255	if (object::can_merge (op, tmp))
		1256	{
1524	op->nrof+=tmp->nrof;	1257	op->nrof += tmp->nrof;
1525	remove_ob(tmp);	1258	tmp->destroy ();
1526	free_object(tmp);	1259	}
		1260
		1261	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1262	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1263
		1264	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1265	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1266
		1267	if (flag & INS_BELOW_ORIGINATOR)
		1268	{
		1269	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1270	{
		1271	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1272	abort ();
		1273	}
		1274
		1275	op->above = originator;
		1276	op->below = originator->below;
		1277
		1278	if (op->below)
		1279	op->below->above = op;
		1280	else
		1281	op->ms ().bot = op;
		1282
		1283	/* since *below* originator, no need to update top */
		1284	originator->below = op;
		1285	}
		1286	else
		1287	{
		1288	/* If there are other objects, then */
		1289	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1290	{
		1291	object *last = NULL;
		1292
		1293	/*
		1294	* If there are multiple objects on this space, we do some trickier handling.
		1295	* We've already dealt with merging if appropriate.
		1296	* Generally, we want to put the new object on top. But if
		1297	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1298	* floor, we want to insert above that and no further.
		1299	* Also, if there are spell objects on this space, we stop processing
		1300	* once we get to them. This reduces the need to traverse over all of
		1301	* them when adding another one - this saves quite a bit of cpu time
		1302	* when lots of spells are cast in one area. Currently, it is presumed
		1303	* that flying non pickable objects are spell objects.
		1304	*/
		1305
		1306	while (top != NULL)
		1307	{
		1308	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1309	floor = top;
		1310
		1311	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1312	{
		1313	/* We insert above top, so we want this object below this */
		1314	top = top->below;
		1315	break;
		1316	}
		1317
		1318	last = top;
		1319	top = top->above;
1527	}	1320	}
1528	}
1529		1321
1530	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1322	/* Don't want top to be NULL, so set it to the last valid object */
1531	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1323	top = last;
1532	if (!QUERY_FLAG(op, FLAG_ALIVE))
1533	CLEAR_FLAG(op, FLAG_NO_STEAL);
1534		1324
1535	if (flag & INS_BELOW_ORIGINATOR) {	1325	/* We let update_position deal with figuring out what the space
1536	if (originator->map != op->map || originator->x != op->x ||	1326	* looks like instead of lots of conditions here.
1537	originator->y != op->y) {	1327	* makes things faster, and effectively the same result.
1538	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1328	*/
1539	abort();	1329
		1330	/* Have object 'fall below' other objects that block view.
		1331	* Unless those objects are exits, type 66
		1332	* If INS_ON_TOP is used, don't do this processing
		1333	* Need to find the object that in fact blocks view, otherwise
		1334	* stacking is a bit odd.
		1335	*/
		1336	if (!(flag & INS_ON_TOP) &&
		1337	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
		1338	{
		1339	for (last = top; last != floor; last = last->below)
		1340	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1341	break;
		1342	/* Check to see if we found the object that blocks view,
		1343	* and make sure we have a below pointer for it so that
		1344	* we can get inserted below this one, which requires we
		1345	* set top to the object below us.
		1346	*/
		1347	if (last && last->below && last != floor)
		1348	top = last->below;
		1349	}
		1350	} /* If objects on this space */
		1351
		1352	if (flag & INS_MAP_LOAD)
		1353	top = GET_MAP_TOP (op->map, op->x, op->y);
		1354
		1355	if (flag & INS_ABOVE_FLOOR_ONLY)
		1356	top = floor;
		1357
		1358	/* Top is the object that our object (op) is going to get inserted above.
		1359	*/
		1360
		1361	/* First object on this space */
		1362	if (!top)
		1363	{
		1364	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1365
		1366	if (op->above)
		1367	op->above->below = op;
		1368
		1369	op->below = NULL;
		1370	op->ms ().bot = op;
1540	}	1371	}
1541	op->above = originator;
1542	op->below = originator->below;
1543	if (op->below) op->below->above = op;
1544	else SET_MAP_OB(op->map, op->x, op->y, op);
1545	/* since *below* originator, no need to update top */
1546	originator->below = op;
1547	} else {	1372	else
1548	/* If there are other objects, then */
1549	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1550	object *last=NULL;
1551	/*
1552	* If there are multiple objects on this space, we do some trickier handling.
1553	* We've already dealt with merging if appropriate.
1554	* Generally, we want to put the new object on top. But if
1555	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1556	* floor, we want to insert above that and no further.
1557	* Also, if there are spell objects on this space, we stop processing
1558	* once we get to them. This reduces the need to traverse over all of
1559	* them when adding another one - this saves quite a bit of cpu time
1560	* when lots of spells are cast in one area. Currently, it is presumed
1561	* that flying non pickable objects are spell objects.
1562	*/
1563
1564	while (top != NULL) {
1565	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1566	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1567	if (QUERY_FLAG(top, FLAG_NO_PICK)
1568	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1569	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1570	{
1571	/* We insert above top, so we want this object below this */
1572	top=top->below;
1573	break;
1574	}
1575	last = top;
1576	top = top->above;
1577	}
1578	/* Don't want top to be NULL, so set it to the last valid object */
1579	top = last;
1580
1581	/* We let update_position deal with figuring out what the space
1582	* looks like instead of lots of conditions here.
1583	* makes things faster, and effectively the same result.
1584	*/
1585
1586	/* Have object 'fall below' other objects that block view.
1587	* Unless those objects are exits, type 66
1588	* If INS_ON_TOP is used, don't do this processing
1589	* Need to find the object that in fact blocks view, otherwise
1590	* stacking is a bit odd.
1591	*/
1592	if (!(flag & INS_ON_TOP) &&
1593	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1594	(op->face && !op->face->visibility)) {
1595	for (last=top; last != floor; last=last->below)
1596	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1597	/* Check to see if we found the object that blocks view,
1598	* and make sure we have a below pointer for it so that
1599	* we can get inserted below this one, which requires we
1600	* set top to the object below us.
1601	*/
1602	if (last && last->below && last != floor) top=last->below;
1603	}
1604	} /* If objects on this space */
1605	if (flag & INS_MAP_LOAD)
1606	top = GET_MAP_TOP(op->map,op->x,op->y);
1607	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;
1608
1609	/* Top is the object that our object (op) is going to get inserted above.
1610	*/
1611
1612	/* First object on this space */
1613	if (!top) {
1614	op->above = GET_MAP_OB(op->map, op->x, op->y);
1615	if (op->above) op->above->below = op;
1616	op->below = NULL;
1617	SET_MAP_OB(op->map, op->x, op->y, op);
1618	} else { /* get inserted into the stack above top */	1373	{ /* get inserted into the stack above top */
1619	op->above = top->above;	1374	op->above = top->above;
		1375
		1376	if (op->above)
1620	if (op->above) op->above->below = op;	1377	op->above->below = op;
		1378
1621	op->below = top;	1379	op->below = top;
1622	top->above = op;	1380	top->above = op;
1623	}	1381	}
		1382
1624	if (op->above==NULL)	1383	if (op->above == NULL)
1625	SET_MAP_TOP(op->map,op->x, op->y, op);	1384	op->ms ().top = op;
1626	} /* else not INS_BELOW_ORIGINATOR */	1385	} /* else not INS_BELOW_ORIGINATOR */
1627		1386
1628	if(op->type==PLAYER)	1387	if (op->type == PLAYER)
1629	op->contr->do_los=1;	1388	op->contr->do_los = 1;
1630		1389
1631	/* If we have a floor, we know the player, if any, will be above	1390	/* If we have a floor, we know the player, if any, will be above
1632	* it, so save a few ticks and start from there.	1391	* it, so save a few ticks and start from there.
1633	*/	1392	*/
1634	if (!(flag & INS_MAP_LOAD))	1393	if (!(flag & INS_MAP_LOAD))
1635	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1394	if (object *pl = op->ms ().player ())
1636	if (tmp->type == PLAYER)	1395	if (pl->contr->ns)
1637	tmp->contr->socket.update_look=1;	1396	pl->contr->ns->floorbox_update ();
1638	}
1639		1397
1640	/* If this object glows, it may affect lighting conditions that are	1398	/* If this object glows, it may affect lighting conditions that are
1641	* visible to others on this map. But update_all_los is really	1399	* visible to others on this map. But update_all_los is really
1642	* an inefficient way to do this, as it means los for all players	1400	* an inefficient way to do this, as it means los for all players
1643	* on the map will get recalculated. The players could very well	1401	* on the map will get recalculated. The players could very well
1644	* be far away from this change and not affected in any way -	1402	* be far away from this change and not affected in any way -
1645	* this should get redone to only look for players within range,	1403	* this should get redone to only look for players within range,
1646	* or just updating the P_NEED_UPDATE for spaces within this area	1404	* or just updating the P_NEED_UPDATE for spaces within this area
1647	* of effect may be sufficient.	1405	* of effect may be sufficient.
1648	*/	1406	*/
1649	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1407	if (op->map->darkness && (op->glow_radius != 0))
1650	update_all_los(op->map, op->x, op->y);	1408	update_all_los (op->map, op->x, op->y);
1651		1409
1652
1653	/* updates flags (blocked, alive, no magic, etc) for this map space */	1410	/* updates flags (blocked, alive, no magic, etc) for this map space */
1654	update_object(op,UP_OBJ_INSERT);	1411	update_object (op, UP_OBJ_INSERT);
1655		1412
		1413	INVOKE_OBJECT (INSERT, op);
1656		1414
1657	/* Don't know if moving this to the end will break anything. However,	1415	/* Don't know if moving this to the end will break anything. However,
1658	* we want to have update_look set above before calling this.	1416	* we want to have floorbox_update called before calling this.
1659	*	1417	*
1660	* check_move_on() must be after this because code called from	1418	* check_move_on() must be after this because code called from
1661	* check_move_on() depends on correct map flags (so functions like	1419	* check_move_on() depends on correct map flags (so functions like
1662	* blocked() and wall() work properly), and these flags are updated by	1420	* blocked() and wall() work properly), and these flags are updated by
1663	* update_object().	1421	* update_object().
1664	*/	1422	*/
1665		1423
1666	/* if this is not the head or flag has been passed, don't check walk on status */	1424	/* if this is not the head or flag has been passed, don't check walk on status */
1667
1668	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1425	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1426	{
1669	if (check_move_on(op, originator))	1427	if (check_move_on (op, originator))
1670	return NULL;	1428	return 0;
1671		1429
1672	/* If we are a multi part object, lets work our way through the check	1430	/* If we are a multi part object, lets work our way through the check
1673	* walk on's.	1431	* walk on's.
1674	*/	1432	*/
1675	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1433	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1676	if (check_move_on (tmp, originator))	1434	if (check_move_on (tmp, originator))
1677	return NULL;	1435	return 0;
1678	}	1436	}
		1437
1679	return op;	1438	return op;
1680	}	1439	}
1681		1440
1682	/* this function inserts an object in the map, but if it	1441	/* this function inserts an object in the map, but if it
1683	* finds an object of its own type, it'll remove that one first.	1442	* finds an object of its own type, it'll remove that one first.
1684	* op is the object to insert it under: supplies x and the map.	1443	* op is the object to insert it under: supplies x and the map.
1685	*/	1444	*/
		1445	void
1686	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1446	replace_insert_ob_in_map (const char *arch_string, object *op)
1687	object *tmp;	1447	{
1688	object *tmp1;	1448	object *tmp, *tmp1;
1689		1449
1690	/* first search for itself and remove any old instances */	1450	/* first search for itself and remove any old instances */
1691		1451
1692	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1452	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1693	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1453	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1694	remove_ob(tmp);	1454	tmp->destroy ();
1695	free_object(tmp);
1696	}
1697	}
1698		1455
1699	tmp1=arch_to_object(find_archetype(arch_string));	1456	tmp1 = arch_to_object (archetype::find (arch_string));
1700		1457
1701		1458	tmp1->x = op->x;
1702	tmp1->x = op->x; tmp1->y = op->y;	1459	tmp1->y = op->y;
1703	insert_ob_in_map(tmp1,op->map,op,0);	1460	insert_ob_in_map (tmp1, op->map, op, 0);
1704	}	1461	}
1705		1462
1706	/*	1463	/*
1707	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1464	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1708	* is returned contains nr objects, and the remaining parts contains	1465	* is returned contains nr objects, and the remaining parts contains
1709	* the rest (or is removed and freed if that number is 0).	1466	* the rest (or is removed and freed if that number is 0).
1710	* On failure, NULL is returned, and the reason put into the	1467	* On failure, NULL is returned, and the reason put into the
1711	* global static errmsg array.	1468	* global static errmsg array.
1712	*/	1469	*/
1713		1470
		1471	object *
1714	object *get_split_ob(object *orig_ob, uint32 nr) {	1472	get_split_ob (object *orig_ob, uint32 nr)
		1473	{
1715	object *newob;	1474	object *newob;
1716	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1475	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1717		1476
1718	if(orig_ob->nrof<nr) {	1477	if (orig_ob->nrof < nr)
1719	sprintf(errmsg,"There are only %d %ss.",	1478	{
1720	orig_ob->nrof?orig_ob->nrof:1, orig_ob->name);	1479	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1721	return NULL;	1480	return NULL;
1722	}	1481	}
		1482
1723	newob = object_create_clone(orig_ob);	1483	newob = object_create_clone (orig_ob);
		1484
1724	if((orig_ob->nrof-=nr)<1) {	1485	if ((orig_ob->nrof -= nr) < 1)
1725	if ( ! is_removed)	1486	orig_ob->destroy (1);
1726	remove_ob(orig_ob);
1727	free_object2(orig_ob, 1);
1728	}
1729	else if ( ! is_removed) {	1487	else if (!is_removed)
		1488	{
1730	if(orig_ob->env!=NULL)	1489	if (orig_ob->env != NULL)
1731	sub_weight (orig_ob->env,orig_ob->weight*nr);	1490	sub_weight (orig_ob->env, orig_ob->weight * nr);
1732	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1491	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1492	{
1733	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1493	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1734	LOG(llevDebug,
1735	"Error, Tried to split object whose map is not in memory.\n");	1494	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1736	return NULL;	1495	return NULL;
1737	}	1496	}
1738	}	1497	}
		1498
1739	newob->nrof=nr;	1499	newob->nrof = nr;
1740		1500
1741	return newob;	1501	return newob;
1742	}	1502	}
1743		1503
1744	/*	1504	/*
1745	* decrease_ob_nr(object, number) decreases a specified number from	1505	* decrease_ob_nr(object, number) decreases a specified number from
1746	* the amount of an object. If the amount reaches 0, the object	1506	* the amount of an object. If the amount reaches 0, the object
1747	* is subsequently removed and freed.	1507	* is subsequently removed and freed.
1748	*	1508	*
1749	* Return value: 'op' if something is left, NULL if the amount reached 0	1509	* Return value: 'op' if something is left, NULL if the amount reached 0
1750	*/	1510	*/
1751		1511
		1512	object *
1752	object *decrease_ob_nr (object *op, uint32 i)	1513	decrease_ob_nr (object *op, uint32 i)
1753	{	1514	{
1754	object *tmp;	1515	object *tmp;
1755	player *pl;
1756		1516
1757	if (i == 0) /* objects with op->nrof require this check */	1517	if (i == 0) /* objects with op->nrof require this check */
1758	return op;	1518	return op;
1759		1519
1760	if (i > op->nrof)	1520	if (i > op->nrof)
1761	i = op->nrof;	1521	i = op->nrof;
1762		1522
1763	if (QUERY_FLAG (op, FLAG_REMOVED))	1523	if (QUERY_FLAG (op, FLAG_REMOVED))
		1524	op->nrof -= i;
		1525	else if (op->env)
		1526	{
		1527	/* is this object in the players inventory, or sub container
		1528	* therein?
		1529	*/
		1530	tmp = op->in_player ();
		1531	/* nope. Is this a container the player has opened?
		1532	* If so, set tmp to that player.
		1533	* IMO, searching through all the players will mostly
		1534	* likely be quicker than following op->env to the map,
		1535	* and then searching the map for a player.
		1536	*/
		1537	if (!tmp)
		1538	for_all_players (pl)
		1539	if (pl->ob->container == op->env)
		1540	{
		1541	tmp = pl->ob;
		1542	break;
		1543	}
		1544
		1545	if (i < op->nrof)
		1546	{
		1547	sub_weight (op->env, op->weight * i);
		1548	op->nrof -= i;
		1549	if (tmp)
		1550	esrv_send_item (tmp, op);
		1551	}
		1552	else
		1553	{
		1554	op->remove ();
		1555	op->nrof = 0;
		1556	if (tmp)
		1557	esrv_del_item (tmp->contr, op->count);
		1558	}
1764	{	1559	}
		1560	else
		1561	{
		1562	object *above = op->above;
		1563
		1564	if (i < op->nrof)
1765	op->nrof -= i;	1565	op->nrof -= i;
1766	}	1566	else
1767	else if (op->env != NULL)
1768	{
1769	/* is this object in the players inventory, or sub container
1770	* therein?
1771	*/	1567	{
1772	tmp = is_player_inv (op->env);	1568	op->remove ();
1773	/* nope. Is this a container the player has opened?	1569	op->nrof = 0;
1774	* If so, set tmp to that player.
1775	* IMO, searching through all the players will mostly
1776	* likely be quicker than following op->env to the map,
1777	* and then searching the map for a player.
1778	*/
1779	if (!tmp) {
1780	for (pl=first_player; pl; pl=pl->next)
1781	if (pl->ob->container == op->env) break;
1782	if (pl) tmp=pl->ob;
1783	else tmp=NULL;
1784	}	1570	}
1785		1571
1786	if (i < op->nrof) {
1787	sub_weight (op->env, op->weight * i);
1788	op->nrof -= i;
1789	if (tmp) {
1790	esrv_send_item(tmp, op);
1791	}
1792	} else {
1793	remove_ob (op);
1794	op->nrof = 0;
1795	if (tmp) {
1796	esrv_del_item(tmp->contr, op->count);
1797	}
1798	}
1799	}
1800	else
1801	{
1802	object *above = op->above;
1803
1804	if (i < op->nrof) {
1805	op->nrof -= i;
1806	} else {
1807	remove_ob (op);
1808	op->nrof = 0;
1809	}
1810	/* Since we just removed op, op->above is null */	1572	/* Since we just removed op, op->above is null */
1811	for (tmp = above; tmp != NULL; tmp = tmp->above)	1573	for (tmp = above; tmp; tmp = tmp->above)
1812	if (tmp->type == PLAYER) {	1574	if (tmp->type == PLAYER)
		1575	{
1813	if (op->nrof)	1576	if (op->nrof)
1814	esrv_send_item(tmp, op);	1577	esrv_send_item (tmp, op);
1815	else	1578	else
1816	esrv_del_item(tmp->contr, op->count);	1579	esrv_del_item (tmp->contr, op->count);
1817	}	1580	}
1818	}	1581	}
1819		1582
1820	if (op->nrof) {	1583	if (op->nrof)
1821	return op;	1584	return op;
1822	} else {	1585	else
1823	free_object (op);	1586	{
		1587	op->destroy ();
1824	return NULL;	1588	return 0;
1825	}	1589	}
1826	}	1590	}
1827		1591
1828	/*	1592	/*
1829	* add_weight(object, weight) adds the specified weight to an object,	1593	* add_weight(object, weight) adds the specified weight to an object,
1830	* and also updates how much the environment(s) is/are carrying.	1594	* and also updates how much the environment(s) is/are carrying.
1831	*/	1595	*/
1832		1596
		1597	void
1833	void add_weight (object *op, signed long weight) {	1598	add_weight (object *op, signed long weight)
		1599	{
1834	while (op!=NULL) {	1600	while (op != NULL)
		1601	{
1835	if (op->type == CONTAINER) {	1602	if (op->type == CONTAINER)
1836	weight=(signed long)(weight*(100-op->stats.Str)/100);	1603	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1837	}	1604
1838	op->carrying+=weight;	1605	op->carrying += weight;
1839	op=op->env;	1606	op = op->env;
1840	}	1607	}
1841	}	1608	}
1842		1609
		1610	object *
		1611	insert_ob_in_ob (object *op, object *where)
		1612	{
		1613	if (!where)
		1614	{
		1615	char *dump = dump_object (op);
		1616	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1617	free (dump);
		1618	return op;
		1619	}
		1620
		1621	if (where->head)
		1622	{
		1623	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1624	where = where->head;
		1625	}
		1626
		1627	return where->insert (op);
		1628	}
		1629
1843	/*	1630	/*
1844	* insert_ob_in_ob(op,environment):	1631	* env->insert (op)
1845	* This function inserts the object op in the linked list	1632	* This function inserts the object op in the linked list
1846	* inside the object environment.	1633	* inside the object environment.
1847	*	1634	*
1848	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1849	* the inventory at the last position or next to other objects of the same
1850	* type.
1851	* Frank: Now sorted by type, archetype and magic!
1852	*
1853	* The function returns now pointer to inserted item, and return value can	1635	* The function returns now pointer to inserted item, and return value can
1854	* be != op, if items are merged. -Tero	1636	* be != op, if items are merged. -Tero
1855	*/	1637	*/
1856		1638
1857	object *insert_ob_in_ob(object *op,object *where) {	1639	object *
		1640	object::insert (object *op)
		1641	{
1858	object *tmp, *otmp;	1642	object *tmp, *otmp;
1859		1643
1860	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1644	if (!QUERY_FLAG (op, FLAG_REMOVED))
1861	dump_object(op);	1645	op->remove ();
1862	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1646
1863	return op;
1864	}
1865	if(where==NULL) {
1866	dump_object(op);
1867	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1868	return op;
1869	}
1870	if (where->head) {
1871	LOG(llevDebug,
1872	"Warning: Tried to insert object wrong part of multipart object.\n");
1873	where = where->head;
1874	}
1875	if (op->more) {	1647	if (op->more)
		1648	{
1876	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1649	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1877	op->name, op->count);
1878	return op;	1650	return op;
1879	}	1651	}
		1652
1880	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1653	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1881	CLEAR_FLAG(op, FLAG_REMOVED);	1654	CLEAR_FLAG (op, FLAG_REMOVED);
1882	if(op->nrof) {	1655	if (op->nrof)
		1656	{
1883	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1657	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1884	if ( CAN_MERGE(tmp,op) ) {	1658	if (object::can_merge (tmp, op))
		1659	{
1885	/* return the original object and remove inserted object	1660	/* return the original object and remove inserted object
1886	(client needs the original object) */	1661	(client needs the original object) */
1887	tmp->nrof += op->nrof;	1662	tmp->nrof += op->nrof;
1888	/* Weight handling gets pretty funky. Since we are adding to	1663	/* Weight handling gets pretty funky. Since we are adding to
1889	* tmp->nrof, we need to increase the weight.	1664	* tmp->nrof, we need to increase the weight.
1890	*/	1665	*/
1891	add_weight (where, op->weight*op->nrof);	1666	add_weight (this, op->weight * op->nrof);
1892	SET_FLAG(op, FLAG_REMOVED);	1667	SET_FLAG (op, FLAG_REMOVED);
1893	free_object(op); /* free the inserted object */	1668	op->destroy (); /* free the inserted object */
1894	op = tmp;	1669	op = tmp;
1895	remove_ob (op); /* and fix old object's links */	1670	op->remove (); /* and fix old object's links */
1896	CLEAR_FLAG(op, FLAG_REMOVED);	1671	CLEAR_FLAG (op, FLAG_REMOVED);
1897	break;	1672	break;
1898	}	1673	}
1899		1674
1900	/* I assume combined objects have no inventory	1675	/* I assume combined objects have no inventory
1901	* We add the weight - this object could have just been removed	1676	* We add the weight - this object could have just been removed
1902	* (if it was possible to merge). calling remove_ob will subtract	1677	* (if it was possible to merge). calling remove_ob will subtract
1903	* the weight, so we need to add it in again, since we actually do	1678	* the weight, so we need to add it in again, since we actually do
1904	* the linking below	1679	* the linking below
1905	*/	1680	*/
1906	add_weight (where, op->weight*op->nrof);	1681	add_weight (this, op->weight * op->nrof);
		1682	}
1907	} else	1683	else
1908	add_weight (where, (op->weight+op->carrying));	1684	add_weight (this, (op->weight + op->carrying));
1909		1685
1910	otmp=is_player_inv(where);	1686	otmp = this->in_player ();
1911	if (otmp&&otmp->contr!=NULL) {	1687	if (otmp && otmp->contr)
1912	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1688	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1913	fix_player(otmp);	1689	otmp->update_stats ();
1914	}
1915		1690
1916	op->map=NULL;	1691	op->map = 0;
1917	op->env=where;	1692	op->env = this;
1918	op->above=NULL;	1693	op->above = 0;
1919	op->below=NULL;	1694	op->below = 0;
1920	op->x=0,op->y=0;	1695	op->x = 0, op->y = 0;
1921	op->ox=0,op->oy=0;
1922		1696
1923	/* reset the light list and los of the players on the map */	1697	/* reset the light list and los of the players on the map */
1924	if((op->glow_radius!=0)&&where->map)	1698	if ((op->glow_radius != 0) && map)
1925	{	1699	{
1926	#ifdef DEBUG_LIGHTS	1700	#ifdef DEBUG_LIGHTS
1927	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1701	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1928	op->name);
1929	#endif /* DEBUG_LIGHTS */	1702	#endif /* DEBUG_LIGHTS */
1930	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1703	if (map->darkness)
		1704	update_all_los (map, x, y);
1931	}	1705	}
1932		1706
1933	/* Client has no idea of ordering so lets not bother ordering it here.	1707	/* Client has no idea of ordering so lets not bother ordering it here.
1934	* It sure simplifies this function...	1708	* It sure simplifies this function...
1935	*/	1709	*/
1936	if (where->inv==NULL)	1710	if (!inv)
1937	where->inv=op;	1711	inv = op;
1938	else {	1712	else
		1713	{
1939	op->below = where->inv;	1714	op->below = inv;
1940	op->below->above = op;	1715	op->below->above = op;
1941	where->inv = op;	1716	inv = op;
1942	}	1717	}
		1718
		1719	INVOKE_OBJECT (INSERT, this);
		1720
1943	return op;	1721	return op;
1944	}	1722	}
1945		1723
1946	/*	1724	/*
1947	* Checks if any objects has a move_type that matches objects	1725	* Checks if any objects has a move_type that matches objects
…		…
1962	* MSW 2001-07-08: Check all objects on space, not just those below	1740	* MSW 2001-07-08: Check all objects on space, not just those below
1963	* object being inserted. insert_ob_in_map may not put new objects	1741	* object being inserted. insert_ob_in_map may not put new objects
1964	* on top.	1742	* on top.
1965	*/	1743	*/
1966		1744
		1745	int
1967	int check_move_on (object *op, object *originator)	1746	check_move_on (object *op, object *originator)
1968	{	1747	{
1969	object *tmp;	1748	object *tmp;
1970	tag_t tag;
1971	mapstruct *m=op->map;	1749	maptile *m = op->map;
1972	int x=op->x, y=op->y;	1750	int x = op->x, y = op->y;
		1751
1973	MoveType move_on, move_slow, move_block;	1752	MoveType move_on, move_slow, move_block;
1974		1753
1975	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1754	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1976	return 0;	1755	return 0;
1977		1756
1978	tag = op->count;
1979
1980	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1757	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1981	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1758	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1982	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1759	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1983		1760
1984	/* if nothing on this space will slow op down or be applied,	1761	/* if nothing on this space will slow op down or be applied,
1985	* no need to do checking below. have to make sure move_type	1762	* no need to do checking below. have to make sure move_type
1986	* is set, as lots of objects don't have it set - we treat that	1763	* is set, as lots of objects don't have it set - we treat that
1987	* as walking.	1764	* as walking.
1988	*/	1765	*/
1989	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1766	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1990	return 0;	1767	return 0;
1991		1768
1992	/* This is basically inverse logic of that below - basically,	1769	/* This is basically inverse logic of that below - basically,
1993	* if the object can avoid the move on or slow move, they do so,	1770	* if the object can avoid the move on or slow move, they do so,
1994	* but can't do it if the alternate movement they are using is	1771	* but can't do it if the alternate movement they are using is
1995	* blocked. Logic on this seems confusing, but does seem correct.	1772	* blocked. Logic on this seems confusing, but does seem correct.
1996	*/	1773	*/
1997	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1774	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1998	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1775	return 0;
1999		1776
2000	/* The objects have to be checked from top to bottom.	1777	/* The objects have to be checked from top to bottom.
2001	* Hence, we first go to the top:	1778	* Hence, we first go to the top:
2002	*/	1779	*/
2003		1780
2004	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1781	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above)
2005	tmp->above!=NULL; tmp=tmp->above) {	1782	{
2006	/* Trim the search when we find the first other spell effect	1783	/* Trim the search when we find the first other spell effect
2007	* this helps performance so that if a space has 50 spell objects,	1784	* this helps performance so that if a space has 50 spell objects,
2008	* we don't need to check all of them.	1785	* we don't need to check all of them.
2009	*/	1786	*/
2010	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1787	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1788	break;
		1789	}
		1790
		1791	for (; tmp; tmp = tmp->below)
2011	}	1792	{
2012	for(;tmp!=NULL; tmp=tmp->below) {	1793	if (tmp == op)
2013	if (tmp == op) continue; /* Can't apply yourself */	1794	continue; /* Can't apply yourself */
2014		1795
2015	/* Check to see if one of the movement types should be slowed down.	1796	/* Check to see if one of the movement types should be slowed down.
2016	* Second check makes sure that the movement types not being slowed	1797	* Second check makes sure that the movement types not being slowed
2017	* (~slow_move) is not blocked on this space - just because the	1798	* (~slow_move) is not blocked on this space - just because the
2018	* space doesn't slow down swimming (for example), if you can't actually	1799	* space doesn't slow down swimming (for example), if you can't actually
2019	* swim on that space, can't use it to avoid the penalty.	1800	* swim on that space, can't use it to avoid the penalty.
2020	*/	1801	*/
2021	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1802	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1803	{
2022	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1804	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2023	((op->move_type & tmp->move_slow) &&
2024	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1805	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1806	{
2025		1807
2026	float diff;	1808	float
2027
2028	diff = tmp->move_slow_penalty*FABS(op->speed);	1809	diff = tmp->move_slow_penalty * FABS (op->speed);
		1810
2029	if (op->type == PLAYER) {	1811	if (op->type == PLAYER)
2030	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1812	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
2031	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1813	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
2032	diff /= 4.0;	1814	diff /= 4.0;
2033	}	1815
2034	}
2035	op->speed_left -= diff;	1816	op->speed_left -= diff;
2036	}	1817	}
2037	}	1818	}
2038		1819
2039	/* Basically same logic as above, except now for actual apply. */	1820	/* Basically same logic as above, except now for actual apply. */
2040	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1821	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2041	((op->move_type & tmp->move_on) &&
2042	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1822	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2043		1823	{
2044	move_apply(tmp, op, originator);	1824	move_apply (tmp, op, originator);
		1825
2045	if (was_destroyed (op, tag))	1826	if (op->destroyed ())
2046	return 1;	1827	return 1;
2047		1828
2048	/* what the person/creature stepped onto has moved the object	1829	/* what the person/creature stepped onto has moved the object
2049	* someplace new. Don't process any further - if we did,	1830	* someplace new. Don't process any further - if we did,
2050	* have a feeling strange problems would result.	1831	* have a feeling strange problems would result.
2051	*/	1832	*/
2052	if (op->map != m || op->x != x || op->y != y) return 0;	1833	if (op->map != m || op->x != x || op->y != y)
		1834	return 0;
2053	}	1835	}
2054	}	1836	}
		1837
2055	return 0;	1838	return 0;
2056	}	1839	}
2057		1840
2058	/*	1841	/*
2059	* present_arch(arch, map, x, y) searches for any objects with	1842	* present_arch(arch, map, x, y) searches for any objects with
2060	* a matching archetype at the given map and coordinates.	1843	* a matching archetype at the given map and coordinates.
2061	* The first matching object is returned, or NULL if none.	1844	* The first matching object is returned, or NULL if none.
2062	*/	1845	*/
2063		1846	object *
2064	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1847	present_arch (const archetype *at, maptile *m, int x, int y)
2065	object *tmp;	1848	{
2066	if(m==NULL || out_of_map(m,x,y)) {	1849	if (m == NULL || out_of_map (m, x, y))
		1850	{
2067	LOG(llevError,"Present_arch called outside map.\n");	1851	LOG (llevError, "Present_arch called outside map.\n");
2068	return NULL;	1852	return NULL;
2069	}	1853	}
		1854
2070	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)
2071	if(tmp->arch == at)	1856	if (tmp->arch == at)
2072	return tmp;	1857	return tmp;
		1858
2073	return NULL;	1859	return NULL;
2074	}	1860	}
2075		1861
2076	/*	1862	/*
2077	* present(type, map, x, y) searches for any objects with	1863	* present(type, map, x, y) searches for any objects with
2078	* a matching type variable at the given map and coordinates.	1864	* a matching type variable at the given map and coordinates.
2079	* The first matching object is returned, or NULL if none.	1865	* The first matching object is returned, or NULL if none.
2080	*/	1866	*/
2081		1867	object *
2082	object *present(unsigned char type,mapstruct *m, int x,int y) {	1868	present (unsigned char type, maptile *m, int x, int y)
2083	object *tmp;	1869	{
2084	if(out_of_map(m,x,y)) {	1870	if (out_of_map (m, x, y))
		1871	{
2085	LOG(llevError,"Present called outside map.\n");	1872	LOG (llevError, "Present called outside map.\n");
2086	return NULL;	1873	return NULL;
2087	}	1874	}
		1875
2088	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)
2089	if(tmp->type==type)	1877	if (tmp->type == type)
2090	return tmp;	1878	return tmp;
		1879
2091	return NULL;	1880	return NULL;
2092	}	1881	}
2093		1882
2094	/*	1883	/*
2095	* present_in_ob(type, object) searches for any objects with	1884	* present_in_ob(type, object) searches for any objects with
2096	* a matching type variable in the inventory of the given object.	1885	* a matching type variable in the inventory of the given object.
2097	* The first matching object is returned, or NULL if none.	1886	* The first matching object is returned, or NULL if none.
2098	*/	1887	*/
2099		1888	object *
2100	object *present_in_ob(unsigned char type, const object *op) {	1889	present_in_ob (unsigned char type, const object *op)
2101	object *tmp;	1890	{
2102	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1891	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2103	if(tmp->type==type)	1892	if (tmp->type == type)
2104	return tmp;	1893	return tmp;
		1894
2105	return NULL;	1895	return NULL;
2106	}	1896	}
2107		1897
2108	/*	1898	/*
2109	* present_in_ob (type, str, object) searches for any objects with	1899	* present_in_ob (type, str, object) searches for any objects with
…		…
2117	* 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
2118	* 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
2119	* 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
2120	* to be unique.	1910	* to be unique.
2121	*/	1911	*/
2122		1912	object *
2123	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)
2124	object *tmp;	1914	{
2125
2126	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1915	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2127	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1916	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2128	return tmp;	1917	return tmp;
2129	}	1918
2130	return NULL;	1919	return 0;
2131	}	1920	}
2132		1921
2133	/*	1922	/*
2134	* present_arch_in_ob(archetype, object) searches for any objects with	1923	* present_arch_in_ob(archetype, object) searches for any objects with
2135	* a matching archetype in the inventory of the given object.	1924	* a matching archetype in the inventory of the given object.
2136	* The first matching object is returned, or NULL if none.	1925	* The first matching object is returned, or NULL if none.
2137	*/	1926	*/
2138		1927	object *
2139	object *present_arch_in_ob(const archetype *at, const object *op) {	1928	present_arch_in_ob (const archetype *at, const object *op)
2140	object *tmp;	1929	{
2141	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1930	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2142	if( tmp->arch == at)	1931	if (tmp->arch == at)
2143	return tmp;	1932	return tmp;
		1933
2144	return NULL;	1934	return NULL;
2145	}	1935	}
2146		1936
2147	/*	1937	/*
2148	* activate recursively a flag on an object inventory	1938	* activate recursively a flag on an object inventory
2149	*/	1939	*/
		1940	void
2150	void flag_inv(object*op, int flag){	1941	flag_inv (object *op, int flag)
2151	object *tmp;	1942	{
2152	if(op->inv)	1943	if (op->inv)
2153	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1944	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1945	{
2154	SET_FLAG(tmp, flag);	1946	SET_FLAG (tmp, flag);
2155	flag_inv(tmp,flag);	1947	flag_inv (tmp, flag);
2156	}	1948	}
		1949	}
		1950
2157	}/*	1951	/*
2158	* desactivate recursively a flag on an object inventory	1952	* deactivate recursively a flag on an object inventory
2159	*/	1953	*/
		1954	void
2160	void unflag_inv(object*op, int flag){	1955	unflag_inv (object *op, int flag)
2161	object *tmp;	1956	{
2162	if(op->inv)	1957	if (op->inv)
2163	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1958	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1959	{
2164	CLEAR_FLAG(tmp, flag);	1960	CLEAR_FLAG (tmp, flag);
2165	unflag_inv(tmp,flag);	1961	unflag_inv (tmp, flag);
2166	}	1962	}
2167	}	1963	}
2168		1964
2169	/*	1965	/*
2170	* 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
2171	* all it's inventory (recursively).	1967	* all it's inventory (recursively).
2172	* 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
2173	* 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.
2174	*/	1970	*/
2175		1971	void
2176	void set_cheat(object *op) {	1972	set_cheat (object *op)
		1973	{
2177	SET_FLAG(op, FLAG_WAS_WIZ);	1974	SET_FLAG (op, FLAG_WAS_WIZ);
2178	flag_inv(op, FLAG_WAS_WIZ);	1975	flag_inv (op, FLAG_WAS_WIZ);
2179	}	1976	}
2180		1977
2181	/*	1978	/*
2182	* 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
2183	* 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
…		…
2197	* 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
2198	* 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
2199	* 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
2200	* customized, changed states, etc.	1997	* customized, changed states, etc.
2201	*/	1998	*/
2202		1999	int
2203	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	{
2204	int i,index=0, flag;	2002	int index = 0, flag;
2205	static int altern[SIZEOFFREE];	2003	int altern[SIZEOFFREE];
2206		2004
2207	for(i=start;i<stop;i++) {	2005	for (int i = start; i < stop; i++)
		2006	{
2208	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]);
2209	if(!flag)	2008	if (!flag)
2210	altern[index++]=i;	2009	altern [index++] = i;
2211		2010
2212	/* 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.
2213	* 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.
2214	* 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 -
2215	* 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
2216	* 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
2217	* to only the spaces immediately surrounding the target area, and	2016	* to only the spaces immediately surrounding the target area, and
2218	* won't look 2 spaces south of the target space.	2017	* won't look 2 spaces south of the target space.
2219	*/	2018	*/
2220	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2019	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2221	stop=maxfree[i];	2020	stop = maxfree[i];
2222	}	2021	}
2223	if(!index) return -1;	2022
		2023	if (!index)
		2024	return -1;
		2025
2224	return altern[RANDOM()%index];	2026	return altern[RANDOM () % index];
2225	}	2027	}
2226		2028
2227	/*	2029	/*
2228	* find_first_free_spot(archetype, mapstruct, x, y) works like	2030	* find_first_free_spot(archetype, maptile, x, y) works like
2229	* find_free_spot(), but it will search max number of squares.	2031	* find_free_spot(), but it will search max number of squares.
2230	* 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.
2231	* 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.
2232	*/	2034	*/
2233		2035	int
2234	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)
2235	int i;	2037	{
2236	for(i=0;i<SIZEOFFREE;i++) {	2038	for (int i = 0; i < SIZEOFFREE; i++)
2237	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]))
2238	return i;	2040	return i;
2239	}	2041
2240	return -1;	2042	return -1;
2241	}	2043	}
2242		2044
2243	/*	2045	/*
2244	* The function permute(arr, begin, end) randomly reorders the array	2046	* The function permute(arr, begin, end) randomly reorders the array
2245	* arr[begin..end-1].	2047	* arr[begin..end-1].
		2048	* now uses a fisher-yates shuffle, old permute was broken
2246	*/	2049	*/
		2050	static void
2247	static void permute(int *arr, int begin, int end)	2051	permute (int *arr, int begin, int end)
2248	{	2052	{
2249	int i, j, tmp, len;	2053	arr += begin;
		2054	end -= begin;
2250		2055
2251	len = end-begin;	2056	while (--end)
2252	for(i = begin; i < end; i++)	2057	swap (arr [end], arr [RANDOM () % (end + 1)]);
2253	{
2254	j = begin+RANDOM()%len;
2255
2256	tmp = arr[i];
2257	arr[i] = arr[j];
2258	arr[j] = tmp;
2259	}
2260	}	2058	}
2261		2059
2262	/* new function to make monster searching more efficient, and effective!	2060	/* new function to make monster searching more efficient, and effective!
2263	* This basically returns a randomized array (in the passed pointer) of	2061	* This basically returns a randomized array (in the passed pointer) of
2264	* 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
2265	* 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
2266	* 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
2267	* 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.
2268	*/	2066	*/
		2067	void
2269	void get_search_arr(int *search_arr)	2068	get_search_arr (int *search_arr)
2270	{	2069	{
2271	int i;	2070	int i;
2272		2071
2273	for(i = 0; i < SIZEOFFREE; i++)	2072	for (i = 0; i < SIZEOFFREE; i++)
2274	{
2275	search_arr[i] = i;	2073	search_arr[i] = i;
2276	}
2277		2074
2278	permute(search_arr, 1, SIZEOFFREE1+1);	2075	permute (search_arr, 1, SIZEOFFREE1 + 1);
2279	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2076	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2280	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2077	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2281	}	2078	}
2282		2079
2283	/*	2080	/*
2284	* 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
2285	* given map at the given coordinates for live objects.	2082	* given map at the given coordinates for live objects.
…		…
2290	* Perhaps incorrectly, but I'm making the assumption that exclude	2087	* Perhaps incorrectly, but I'm making the assumption that exclude
2291	* 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
2292	* 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
2293	* there is capable of.	2090	* there is capable of.
2294	*/	2091	*/
2295		2092	int
2296	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2093	find_dir (maptile *m, int x, int y, object *exclude)
		2094	{
2297	int i,max=SIZEOFFREE, mflags;	2095	int i, max = SIZEOFFREE, mflags;
		2096
2298	sint16 nx, ny;	2097	sint16 nx, ny;
2299	object *tmp;	2098	object *tmp;
2300	mapstruct *mp;	2099	maptile *mp;
		2100
2301	MoveType blocked, move_type;	2101	MoveType blocked, move_type;
2302		2102
2303	if (exclude && exclude->head) {	2103	if (exclude && exclude->head)
		2104	{
2304	exclude = exclude->head;	2105	exclude = exclude->head;
2305	move_type = exclude->move_type;	2106	move_type = exclude->move_type;
2306	} else {	2107	}
		2108	else
		2109	{
2307	/* 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. */
2308	move_type=MOVE_ALL;	2111	move_type = MOVE_ALL;
		2112	}
		2113
		2114	for (i = 1; i < max; i++)
2309	}	2115	{
2310
2311	for(i=1;i<max;i++) {
2312	mp = m;	2116	mp = m;
2313	nx = x + freearr_x[i];	2117	nx = x + freearr_x[i];
2314	ny = y + freearr_y[i];	2118	ny = y + freearr_y[i];
2315		2119
2316	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2120	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2121
2317	if (mflags & P_OUT_OF_MAP) {	2122	if (mflags & P_OUT_OF_MAP)
		2123	max = maxfree[i];
		2124	else
		2125	{
		2126	mapspace &ms = mp->at (nx, ny);
		2127
		2128	blocked = ms.move_block;
		2129
		2130	if ((move_type & blocked) == move_type)
2318	max = maxfree[i];	2131	max = maxfree[i];
2319	} else {
2320	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2321
2322	if ((move_type & blocked) == move_type) {
2323	max=maxfree[i];
2324	} else if (mflags & P_IS_ALIVE) {	2132	else if (mflags & P_IS_ALIVE)
2325	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2133	{
		2134	for (tmp = ms.bot; tmp; tmp = tmp->above)
2326	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2135	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2327	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2136	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2328	break;	2137	break;
2329	}	2138
2330	}
2331	if(tmp) {	2139	if (tmp)
2332	return freedir[i];	2140	return freedir[i];
2333	}
2334	}	2141	}
2335	}	2142	}
2336	}	2143	}
		2144
2337	return 0;	2145	return 0;
2338	}	2146	}
2339		2147
2340	/*	2148	/*
2341	* distance(object 1, object 2) will return the square of the	2149	* distance(object 1, object 2) will return the square of the
2342	* distance between the two given objects.	2150	* distance between the two given objects.
2343	*/	2151	*/
2344		2152	int
2345	int distance(const object *ob1, const object *ob2) {	2153	distance (const object *ob1, const object *ob2)
2346	int i;	2154	{
2347	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);
2348	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2349	return i;
2350	}	2156	}
2351		2157
2352	/*	2158	/*
2353	* 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
2354	* 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
2355	* object, needs to travel toward it.	2161	* object, needs to travel toward it.
2356	*/	2162	*/
2357		2163	int
2358	int find_dir_2(int x, int y) {	2164	find_dir_2 (int x, int y)
		2165	{
2359	int q;	2166	int q;
2360		2167
2361	if(y)	2168	if (y)
2362	q=x*100/y;	2169	q = x * 100 / y;
2363	else if (x)	2170	else if (x)
2364	q= -300*x;	2171	q = -300 * x;
2365	else	2172	else
2366	return 0;	2173	return 0;
2367		2174
2368	if(y>0) {	2175	if (y > 0)
		2176	{
2369	if(q < -242)	2177	if (q < -242)
2370	return 3 ;	2178	return 3;
2371	if (q < -41)	2179	if (q < -41)
2372	return 2 ;	2180	return 2;
2373	if (q < 41)	2181	if (q < 41)
2374	return 1 ;	2182	return 1;
2375	if (q < 242)	2183	if (q < 242)
2376	return 8 ;	2184	return 8;
2377	return 7 ;	2185	return 7;
2378	}	2186	}
2379		2187
2380	if (q < -242)	2188	if (q < -242)
2381	return 7 ;	2189	return 7;
2382	if (q < -41)	2190	if (q < -41)
2383	return 6 ;	2191	return 6;
2384	if (q < 41)	2192	if (q < 41)
2385	return 5 ;	2193	return 5;
2386	if (q < 242)	2194	if (q < 242)
2387	return 4 ;	2195	return 4;
2388		2196
2389	return 3 ;	2197	return 3;
2390	}	2198	}
2391		2199
2392	/*	2200	/*
2393	* absdir(int): Returns a number between 1 and 8, which represent	2201	* absdir(int): Returns a number between 1 and 8, which represent
2394	* the "absolute" direction of a number (it actually takes care of	2202	* the "absolute" direction of a number (it actually takes care of
2395	* "overflow" in previous calculations of a direction).	2203	* "overflow" in previous calculations of a direction).
2396	*/	2204	*/
2397		2205
		2206	int
2398	int absdir(int d) {	2207	absdir (int d)
2399	while(d<1) d+=8;	2208	{
2400	while(d>8) d-=8;	2209	while (d < 1)
		2210	d += 8;
		2211
		2212	while (d > 8)
		2213	d -= 8;
		2214
2401	return d;	2215	return d;
2402	}	2216	}
2403		2217
2404	/*	2218	/*
2405	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2219	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2406	* between two directions (which are expected to be absolute (see absdir())	2220	* between two directions (which are expected to be absolute (see absdir())
2407	*/	2221	*/
2408		2222
		2223	int
2409	int dirdiff(int dir1, int dir2) {	2224	dirdiff (int dir1, int dir2)
		2225	{
2410	int d;	2226	int d;
		2227
2411	d = abs(dir1 - dir2);	2228	d = abs (dir1 - dir2);
2412	if(d>4)	2229	if (d > 4)
2413	d = 8 - d;	2230	d = 8 - d;
		2231
2414	return d;	2232	return d;
2415	}	2233	}
2416		2234
2417	/* peterm:	2235	/* peterm:
2418	* 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.
…		…
2421	* 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
2422	* 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.
2423	* 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
2424	* functions.	2242	* functions.
2425	*/	2243	*/
2426
2427	int reduction_dir[SIZEOFFREE][3] = {	2244	int reduction_dir[SIZEOFFREE][3] = {
2428	{0,0,0}, /* 0 */	2245	{0, 0, 0}, /* 0 */
2429	{0,0,0}, /* 1 */	2246	{0, 0, 0}, /* 1 */
2430	{0,0,0}, /* 2 */	2247	{0, 0, 0}, /* 2 */
2431	{0,0,0}, /* 3 */	2248	{0, 0, 0}, /* 3 */
2432	{0,0,0}, /* 4 */	2249	{0, 0, 0}, /* 4 */
2433	{0,0,0}, /* 5 */	2250	{0, 0, 0}, /* 5 */
2434	{0,0,0}, /* 6 */	2251	{0, 0, 0}, /* 6 */
2435	{0,0,0}, /* 7 */	2252	{0, 0, 0}, /* 7 */
2436	{0,0,0}, /* 8 */	2253	{0, 0, 0}, /* 8 */
2437	{8,1,2}, /* 9 */	2254	{8, 1, 2}, /* 9 */
2438	{1,2,-1}, /* 10 */	2255	{1, 2, -1}, /* 10 */
2439	{2,10,12}, /* 11 */	2256	{2, 10, 12}, /* 11 */
2440	{2,3,-1}, /* 12 */	2257	{2, 3, -1}, /* 12 */
2441	{2,3,4}, /* 13 */	2258	{2, 3, 4}, /* 13 */
2442	{3,4,-1}, /* 14 */	2259	{3, 4, -1}, /* 14 */
2443	{4,14,16}, /* 15 */	2260	{4, 14, 16}, /* 15 */
2444	{5,4,-1}, /* 16 */	2261	{5, 4, -1}, /* 16 */
2445	{4,5,6}, /* 17 */	2262	{4, 5, 6}, /* 17 */
2446	{6,5,-1}, /* 18 */	2263	{6, 5, -1}, /* 18 */
2447	{6,20,18}, /* 19 */	2264	{6, 20, 18}, /* 19 */
2448	{7,6,-1}, /* 20 */	2265	{7, 6, -1}, /* 20 */
2449	{6,7,8}, /* 21 */	2266	{6, 7, 8}, /* 21 */
2450	{7,8,-1}, /* 22 */	2267	{7, 8, -1}, /* 22 */
2451	{8,22,24}, /* 23 */	2268	{8, 22, 24}, /* 23 */
2452	{8,1,-1}, /* 24 */	2269	{8, 1, -1}, /* 24 */
2453	{24,9,10}, /* 25 */	2270	{24, 9, 10}, /* 25 */
2454	{9,10,-1}, /* 26 */	2271	{9, 10, -1}, /* 26 */
2455	{10,11,-1}, /* 27 */	2272	{10, 11, -1}, /* 27 */
2456	{27,11,29}, /* 28 */	2273	{27, 11, 29}, /* 28 */
2457	{11,12,-1}, /* 29 */	2274	{11, 12, -1}, /* 29 */
2458	{12,13,-1}, /* 30 */	2275	{12, 13, -1}, /* 30 */
2459	{12,13,14}, /* 31 */	2276	{12, 13, 14}, /* 31 */
2460	{13,14,-1}, /* 32 */	2277	{13, 14, -1}, /* 32 */
2461	{14,15,-1}, /* 33 */	2278	{14, 15, -1}, /* 33 */
2462	{33,15,35}, /* 34 */	2279	{33, 15, 35}, /* 34 */
2463	{16,15,-1}, /* 35 */	2280	{16, 15, -1}, /* 35 */
2464	{17,16,-1}, /* 36 */	2281	{17, 16, -1}, /* 36 */
2465	{18,17,16}, /* 37 */	2282	{18, 17, 16}, /* 37 */
2466	{18,17,-1}, /* 38 */	2283	{18, 17, -1}, /* 38 */
2467	{18,19,-1}, /* 39 */	2284	{18, 19, -1}, /* 39 */
2468	{41,19,39}, /* 40 */	2285	{41, 19, 39}, /* 40 */
2469	{19,20,-1}, /* 41 */	2286	{19, 20, -1}, /* 41 */
2470	{20,21,-1}, /* 42 */	2287	{20, 21, -1}, /* 42 */
2471	{20,21,22}, /* 43 */	2288	{20, 21, 22}, /* 43 */
2472	{21,22,-1}, /* 44 */	2289	{21, 22, -1}, /* 44 */
2473	{23,22,-1}, /* 45 */	2290	{23, 22, -1}, /* 45 */
2474	{45,47,23}, /* 46 */	2291	{45, 47, 23}, /* 46 */
2475	{23,24,-1}, /* 47 */	2292	{23, 24, -1}, /* 47 */
2476	{24,9,-1}}; /* 48 */	2293	{24, 9, -1}
		2294	}; /* 48 */
2477		2295
2478	/* Recursive routine to step back and see if we can	2296	/* Recursive routine to step back and see if we can
2479	* find a path to that monster that we found. If not,	2297	* find a path to that monster that we found. If not,
2480	* we don't bother going toward it. Returns 1 if we	2298	* we don't bother going toward it. Returns 1 if we
2481	* can see a direct way to get it	2299	* can see a direct way to get it
2482	* Modified to be map tile aware -.MSW	2300	* Modified to be map tile aware -.MSW
2483	*/	2301	*/
2484		2302	int
2485
2486	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	{
2487	sint16 dx, dy;	2305	sint16 dx, dy;
2488	int mflags;	2306	int mflags;
2489		2307
		2308	if (dir < 0)
2490	if(dir<0) return 0; /* exit condition: invalid direction */	2309	return 0; /* exit condition: invalid direction */
2491		2310
2492	dx = x + freearr_x[dir];	2311	dx = x + freearr_x[dir];
2493	dy = y + freearr_y[dir];	2312	dy = y + freearr_y[dir];
2494		2313
2495	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2314	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2496		2315
2497	/* This functional arguably was incorrect before - it was	2316	/* This functional arguably was incorrect before - it was
2498	* checking for P_WALL - that was basically seeing if	2317	* checking for P_WALL - that was basically seeing if
2499	* we could move to the monster - this is being more	2318	* we could move to the monster - this is being more
2500	* 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
2501	* 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
2502	* at least its move type.	2321	* at least its move type.
2503	*/	2322	*/
2504	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2323	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2324	return 0;
2505		2325
2506	/* yes, can see. */	2326	/* yes, can see. */
2507	if(dir < 9) return 1;	2327	if (dir < 9)
		2328	return 1;
		2329
2508	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2330	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2509	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2331	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2510	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2332	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2511	}	2333	}
2512		2334
2513
2514
2515	/*	2335	/*
2516	* 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
2517	* picked up by the picker. Returnes 1 if it can be	2337	* picked up by the picker. Returnes 1 if it can be
2518	* picked up, otherwise 0.	2338	* picked up, otherwise 0.
2519	*	2339	*
…		…
2521	* core dumps if they do.	2341	* core dumps if they do.
2522	*	2342	*
2523	* 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)
2524	*/	2344	*/
2525		2345
		2346	int
2526	int can_pick(const object *who, const object *item) {	2347	can_pick (const object *who, const object *item)
		2348	{
2527	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2349	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2528	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2350	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2529	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2351	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2530	(who->type==PLAYER||item->weight<who->weight/3));
2531	}	2352	}
2532
2533		2353
2534	/*	2354	/*
2535	* create clone from object to another	2355	* create clone from object to another
2536	*/	2356	*/
		2357	object *
2537	object *object_create_clone (object *asrc) {	2358	object_create_clone (object *asrc)
		2359	{
2538	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2360	object *dst = 0, *tmp, *src, *part, *prev, *item;
2539		2361
2540	if(!asrc) return NULL;	2362	if (!asrc)
		2363	return 0;
		2364
2541	src = asrc;	2365	src = asrc;
2542	if(src->head)	2366	if (src->head)
2543	src = src->head;	2367	src = src->head;
2544		2368
2545	prev = NULL;	2369	prev = 0;
2546	for(part = src; part; part = part->more) {	2370	for (part = src; part; part = part->more)
2547	tmp = get_object();	2371	{
2548	copy_object(part,tmp);	2372	tmp = part->clone ();
2549	tmp->x -= src->x;	2373	tmp->x -= src->x;
2550	tmp->y -= src->y;	2374	tmp->y -= src->y;
		2375
2551	if(!part->head) {	2376	if (!part->head)
		2377	{
2552	dst = tmp;	2378	dst = tmp;
2553	tmp->head = NULL;
2554	} else {
2555	tmp->head = dst;	2379	tmp->head = 0;
2556	}	2380	}
		2381	else
		2382	tmp->head = dst;
		2383
2557	tmp->more = NULL;	2384	tmp->more = 0;
		2385
2558	if(prev)	2386	if (prev)
2559	prev->more = tmp;	2387	prev->more = tmp;
		2388
2560	prev = tmp;	2389	prev = tmp;
2561	}	2390	}
2562	/*** copy inventory ***/	2391
2563	for(item = src->inv; item; item = item->below) {	2392	for (item = src->inv; item; item = item->below)
2564	(void) insert_ob_in_ob(object_create_clone(item),dst);	2393	insert_ob_in_ob (object_create_clone (item), dst);
2565	}
2566		2394
2567	return dst;	2395	return dst;
2568	}
2569
2570	/* return true if the object was destroyed, 0 otherwise */
2571	int was_destroyed (const object *op, tag_t old_tag)
2572	{
2573	/* checking for FLAG_FREED isn't necessary, but makes this function more
2574	* robust */
2575	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2576	}	2396	}
2577		2397
2578	/* GROS - Creates an object using a string representing its content. */	2398	/* GROS - Creates an object using a string representing its content. */
2579	/* 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 */
2580	/* 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, */
2581	/* 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. */
2582	/* 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. */
2583	/* Also remember that multiparts objects are not supported for now. */	2403	/* Also remember that multiparts objects are not supported for now. */
2584		2404	object *
2585	object* load_object_str(const char *obstr)	2405	load_object_str (const char *obstr)
2586	{	2406	{
2587	object *op;	2407	object *op;
2588	char filename[MAX_BUF];	2408	char filename[MAX_BUF];
		2409
2589	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2410	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2590		2411
2591	FILE *tempfile=fopen(filename,"w");	2412	FILE *tempfile = fopen (filename, "w");
		2413
2592	if (tempfile == NULL)	2414	if (tempfile == NULL)
2593	{	2415	{
2594	LOG(llevError,"Error - Unable to access load object temp file\n");	2416	LOG (llevError, "Error - Unable to access load object temp file\n");
2595	return NULL;	2417	return NULL;
2596	};	2418	}
		2419
2597	fprintf(tempfile,obstr);	2420	fprintf (tempfile, obstr);
2598	fclose(tempfile);	2421	fclose (tempfile);
2599		2422
2600	op=get_object();	2423	op = object::create ();
2601		2424
2602	object_thawer thawer (filename);	2425	object_thawer thawer (filename);
		2426
2603	if (thawer)	2427	if (thawer)
2604	load_object(thawer,op,LO_NEWFILE,0);	2428	load_object (thawer, op, 0);
		2429
2605	LOG(llevDebug," load str completed, object=%s\n",op->name);	2430	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2606	CLEAR_FLAG(op,FLAG_REMOVED);	2431	CLEAR_FLAG (op, FLAG_REMOVED);
2607		2432
2608	return op;	2433	return op;
2609	}	2434	}
2610		2435
2611	/* This returns the first object in who's inventory that	2436	/* This returns the first object in who's inventory that
2612	* has the same type and subtype match.	2437	* has the same type and subtype match.
2613	* returns NULL if no match.	2438	* returns NULL if no match.
2614	*/	2439	*/
		2440	object *
2615	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)
2616	{	2442	{
2617	object *tmp;
2618
2619	for (tmp=who->inv; tmp; tmp=tmp->below)	2443	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2620	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2444	if (tmp->type == type && tmp->subtype == subtype)
		2445	return tmp;
2621		2446
2622	return NULL;	2447	return 0;
2623	}	2448	}
2624		2449
2625	/* 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,
2626	* otherwise return NULL.	2451	* otherwise return NULL.
2627	*	2452	*
2628	* 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
2629	* do the desired thing.	2454	* do the desired thing.
2630	*/	2455	*/
		2456	key_value *
2631	key_value * get_ob_key_link(const object * ob, const char * key) {	2457	get_ob_key_link (const object *ob, const char *key)
2632	key_value * link;	2458	{
2633
2634	for (link = ob->key_values; link != NULL; link = link->next) {	2459	for (key_value *link = ob->key_values; link; link = link->next)
2635	if (link->key == key) {	2460	if (link->key == key)
2636	return link;	2461	return link;
2637	}	2462
2638	}	2463	return 0;
2639		2464	}
2640	return NULL;
2641	}
2642		2465
2643	/*	2466	/*
2644	* 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.
2645	*	2468	*
2646	* The argument doesn't need to be a shared string.	2469	* The argument doesn't need to be a shared string.
2647	*	2470	*
2648	* The returned string is shared.	2471	* The returned string is shared.
2649	*/	2472	*/
		2473	const char *
2650	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	{
2651	key_value * link;	2476	key_value *link;
2652	const char * canonical_key;	2477	shstr_cmp canonical_key (key);
		2478
		2479	if (!canonical_key)
2653		2480	{
2654	canonical_key = find_string(key);
2655
2656	if (canonical_key == NULL) {
2657	/* 1. There being a field named key on any object	2481	/* 1. There being a field named key on any object
2658	* implies there'd be a shared string to find.	2482	* implies there'd be a shared string to find.
2659	* 2. Since there isn't, no object has this field.	2483	* 2. Since there isn't, no object has this field.
2660	* 3. Therefore, *this* object doesn't have this field.	2484	* 3. Therefore, *this* object doesn't have this field.
2661	*/	2485	*/
2662	return NULL;	2486	return 0;
2663	}	2487	}
2664		2488
2665	/* This is copied from get_ob_key_link() above -	2489	/* This is copied from get_ob_key_link() above -
2666	* only 4 lines, and saves the function call overhead.	2490	* only 4 lines, and saves the function call overhead.
2667	*/	2491	*/
2668	for (link = op->key_values; link != NULL; link = link->next) {	2492	for (link = op->key_values; link; link = link->next)
2669	if (link->key == canonical_key) {	2493	if (link->key == canonical_key)
2670	return link->value;	2494	return link->value;
2671	}	2495
2672	}	2496	return 0;
2673	return NULL;
2674	}	2497	}
2675		2498
2676		2499
2677	/*	2500	/*
2678	* Updates the canonical_key in op to value.	2501	* Updates the canonical_key in op to value.
…		…
2682	* 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
2683	* keys.	2506	* keys.
2684	*	2507	*
2685	* Returns TRUE on success.	2508	* Returns TRUE on success.
2686	*/	2509	*/
		2510	int
2687	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	{
2688	key_value * field = NULL, *last=NULL;	2513	key_value *field = NULL, *last = NULL;
2689		2514
2690	for (field=op->key_values; field != NULL; field=field->next) {	2515	for (field = op->key_values; field != NULL; field = field->next)
		2516	{
2691	if (field->key != canonical_key) {	2517	if (field->key != canonical_key)
		2518	{
2692	last = field;	2519	last = field;
2693	continue;	2520	continue;
2694	}	2521	}
2695		2522
2696	if (field->value) FREE_AND_CLEAR_STR(field->value);
2697	if (value)	2523	if (value)
2698	field->value = add_string(value);	2524	field->value = value;
2699	else {	2525	else
		2526	{
2700	/* Basically, if the archetype has this key set,	2527	/* Basically, if the archetype has this key set,
2701	* we need to store the null value so when we save	2528	* we need to store the null value so when we save
2702	* it, we save the empty value so that when we load,	2529	* it, we save the empty value so that when we load,
2703	* we get this value back again.	2530	* we get this value back again.
2704	*/	2531	*/
2705	if (get_ob_key_link(&op->arch->clone, canonical_key))	2532	if (get_ob_key_link (&op->arch->clone, canonical_key))
2706	field->value = NULL;	2533	field->value = 0;
2707	else {	2534	else
2708	/* Delete this link */	2535	{
2709	if (field->key) FREE_AND_CLEAR_STR(field->key);	2536	if (last)
2710	if (field->value) FREE_AND_CLEAR_STR(field->value);
2711	if (last) last->next = field->next;	2537	last->next = field->next;
		2538	else
2712	else op->key_values = field->next;	2539	op->key_values = field->next;
		2540
2713	free(field);	2541	delete field;
2714	}	2542	}
2715	}	2543	}
2716	return TRUE;	2544	return TRUE;
2717	}	2545	}
2718	/* IF we get here, key doesn't exist */	2546	/* IF we get here, key doesn't exist */
2719		2547
2720	/* No field, we'll have to add it. */	2548	/* No field, we'll have to add it. */
2721		2549
2722	if (!add_key) {	2550	if (!add_key)
2723	return FALSE;	2551	return FALSE;
2724	}	2552
2725	/* There isn't any good reason to store a null	2553	/* There isn't any good reason to store a null
2726	* value in the key/value list. If the archetype has	2554	* value in the key/value list. If the archetype has
2727	* this key, then we should also have it, so shouldn't	2555	* this key, then we should also have it, so shouldn't
2728	* be here. If user wants to store empty strings,	2556	* be here. If user wants to store empty strings,
2729	* should pass in ""	2557	* should pass in ""
2730	*/	2558	*/
2731	if (value == NULL) return TRUE;	2559	if (value == NULL)
2732
2733	field = (key_value *) malloc(sizeof(key_value));
2734
2735	field->key = add_refcount(canonical_key);
2736	field->value = add_string(value);
2737	/* Usual prepend-addition. */
2738	field->next = op->key_values;
2739	op->key_values = field;
2740
2741	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;
2742	}	2571	}
2743		2572
2744	/*	2573	/*
2745	* Updates the key in op to value.	2574	* Updates the key in op to value.
2746	*	2575	*
…		…
2748	* and not add new ones.	2577	* and not add new ones.
2749	* 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
2750	*	2579	*
2751	* Returns TRUE on success.	2580	* Returns TRUE on success.
2752	*/	2581	*/
		2582	int
2753	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)
2754	const char * canonical_key = NULL;	2584	{
2755	int floating_ref = FALSE;	2585	shstr key_ (key);
2756	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)
2757		2601	{
2758	/* HACK This mess is to make sure set_ob_value() passes a shared string	2602	item = item->below;
2759	* to get_ob_key_link(), without leaving a leaked refcount.	2603
2760	*/	2604	while (item->inv)
		2605	item = item->inv;
2761		2606	}
2762	canonical_key = find_string(key);	2607	else
2763	if (canonical_key == NULL) {	2608	item = item->env;
2764	canonical_key = add_string(key);
2765	floating_ref = TRUE;
2766	}
2767
2768	ret = set_ob_key_value_s(op, canonical_key, value, add_key);
2769
2770	if (floating_ref) {
2771	free_string(canonical_key);
2772	}
2773
2774	return ret;
2775	}	2609	}
		2610
		2611	// return a suitable string describing an objetc in enough detail to find it
		2612	const char *
		2613	object::debug_desc (char *info) const
		2614	{
		2615	char info2[256 * 3];
		2616	char *p = info;
		2617
		2618	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2619	count,
		2620	&name,
		2621	title ? " " : "",
		2622	title ? (const char *)title : "");
		2623
		2624	if (env)
		2625	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2626
		2627	if (map)
		2628	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2629
		2630	return info;
		2631	}
		2632
		2633	const char *
		2634	object::debug_desc () const
		2635	{
		2636	static char info[256 * 3];
		2637	return debug_desc (info);
		2638	}
		2639

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