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

Comparing deliantra/server/common/object.C (file contents):
Revision 1.7 by root, Tue Aug 29 05:03:54 2006 UTC vs.
Revision 1.93 by root, Tue Dec 26 20:04:09 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.7 2006/08/29 05:03:54 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
130		200	|| ob1->type != ob2->type
131	if (ob1->speed != ob2->speed) return 0;	201	|| ob1->speed != ob2->speed
132	/* Note sure why the following is the case - either the object has to	202	|| ob1->value != ob2->value
133	* be animated or have a very low speed. Is this an attempted monster	203	|| ob1->name != ob2->name)
134	* check?
135	*/
136	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)
137	return 0;	204	return 0;
138		205
		206	//TODO: this ain't working well, use nicer and correct overflow check
139	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	207	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
140	* value could not be stored in a sint32 (which unfortunately sometimes is	208	* value could not be stored in a sint32 (which unfortunately sometimes is
141	* used to store nrof).	209	* used to store nrof).
142	*/	210	*/
143	if (ob1->nrof+ob2->nrof >= 1UL<<31)	211	if (ob1->nrof + ob2->nrof >= 1UL << 31)
144	return 0;	212	return 0;
145		213
146	/* This is really a spellbook check - really, we should
147	* check all objects in the inventory.
148	*/
149	if (ob1->inv || ob2->inv) {
150	/* if one object has inventory but the other doesn't, not equiv */
151	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) return 0;
152
153	/* Now check to see if the two inventory objects could merge */
154	if (!CAN_MERGE(ob1->inv, ob2->inv)) return 0;
155
156	/* inventory ok - still need to check rest of this object to see
157	* if it is valid.
158	*/
159	}
160
161	/* If the objects have been identified, set the BEEN_APPLIED flag.	214	/* If the objects have been identified, set the BEEN_APPLIED flag.
162	* This is to the comparison of the flags below will be OK. We	215	* This is to the comparison of the flags below will be OK. We
163	* just can't ignore the been applied or identified flags, as they	216	* just can't ignore the been applied or identified flags, as they
164	* are not equal - just if it has been identified, the been_applied	217	* are not equal - just if it has been identified, the been_applied
165	* flags lose any meaning.	218	* flags lose any meaning.
166	*/	219	*/
167	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))	220	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
168	SET_FLAG(ob1, FLAG_BEEN_APPLIED);	221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
169		222
170	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))	223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
171	SET_FLAG(ob2, FLAG_BEEN_APPLIED);	224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
172		225
173		226	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
174	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	227	|| ob1->arch != ob2->arch
175	* being locked in inventory should prevent merging.	228	|| ob1->name != ob2->name
176	* 0x4 in flags3 is CLIENT_SENT	229	|| ob1->title != ob2->title
177	*/	230	|| ob1->msg != ob2->msg
178	if ((ob1->arch != ob2->arch) ||	231	|| ob1->weight != ob2->weight
179	(ob1->flags[0] != ob2->flags[0]) ||
180	(ob1->flags[1] != ob2->flags[1]) ||
181	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||
182	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
183	(ob1->name != ob2->name) ||
184	(ob1->title != ob2->title) ||
185	(ob1->msg != ob2->msg) ||
186	(ob1->weight != ob2->weight) ||
187	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||	232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
188	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||	233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
189	(ob1->attacktype != ob2->attacktype) ||	234	|| ob1->attacktype != ob2->attacktype
190	(ob1->magic != ob2->magic) ||	235	|| ob1->magic != ob2->magic
191	(ob1->slaying != ob2->slaying) ||	236	|| ob1->slaying != ob2->slaying
192	(ob1->skill != ob2->skill) ||	237	|| ob1->skill != ob2->skill
193	(ob1->value != ob2->value) ||	238	|| ob1->value != ob2->value
194	(ob1->animation_id != ob2->animation_id) ||	239	|| ob1->animation_id != ob2->animation_id
195	(ob1->client_type != ob2->client_type) ||	240	|| ob1->client_type != ob2->client_type
196	(ob1->materialname != ob2->materialname) ||	241	|| ob1->materialname != ob2->materialname
197	(ob1->lore != ob2->lore) ||	242	|| ob1->lore != ob2->lore
198	(ob1->subtype != ob2->subtype) ||	243	|| ob1->subtype != ob2->subtype
199	(ob1->move_type != ob2->move_type) ||	244	|| ob1->move_type != ob2->move_type
200	(ob1->move_block != ob2->move_block) ||	245	|| ob1->move_block != ob2->move_block
201	(ob1->move_allow != ob2->move_allow) ||	246	|| ob1->move_allow != ob2->move_allow
202	(ob1->move_on != ob2->move_on) ||	247	|| ob1->move_on != ob2->move_on
203	(ob1->move_off != ob2->move_off) ||	248	|| ob1->move_off != ob2->move_off
204	(ob1->move_slow != ob2->move_slow) ||	249	|| ob1->move_slow != ob2->move_slow
205	(ob1->move_slow_penalty != ob2->move_slow_penalty)	250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
206	)
207	return 0;	251	return 0;
208		252
		253	/* This is really a spellbook check - really, we should
		254	* check all objects in the inventory.
		255	*/
		256	if (ob1->inv || ob2->inv)
		257	{
		258	/* if one object has inventory but the other doesn't, not equiv */
		259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
		260	return 0;
		261
		262	/* Now check to see if the two inventory objects could merge */
		263	if (!object::can_merge (ob1->inv, ob2->inv))
		264	return 0;
		265
		266	/* inventory ok - still need to check rest of this object to see
		267	* if it is valid.
		268	*/
		269	}
		270
209	/* Don't merge objects that are applied. With the new 'body' code,	271	/* Don't merge objects that are applied. With the new 'body' code,
210	* it is possible for most any character to have more than one of	272	* it is possible for most any character to have more than one of
211	* some items equipped, and we don't want those to merge.	273	* some items equipped, and we don't want those to merge.
212	*/	274	*/
213	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	275	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
214	return 0;	276	return 0;
215		277
		278	/* Note sure why the following is the case - either the object has to
		279	* be animated or have a very low speed. Is this an attempted monster
		280	* check?
		281	*/
		282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
		283	return 0;
		284
216	switch (ob1->type) {	285	switch (ob1->type)
		286	{
217	case SCROLL:	287	case SCROLL:
218	if (ob1->level != ob2->level) return 0;	288	if (ob1->level != ob2->level)
		289	return 0;
219	break;	290	break;
220
221	}	291	}
		292
222	if (ob1->key_values != NULL || ob2->key_values != NULL) {	293	if (ob1->key_values != NULL || ob2->key_values != NULL)
		294	{
223	/* At least one of these has key_values. */	295	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {	296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
225	/* One has fields, but the other one doesn't. */	297	/* One has fields, but the other one doesn't. */
226	return 0;	298	return 0;
227	} else if (!compare_ob_value_lists(ob1, ob2)) {	299	else if (!compare_ob_value_lists (ob1, ob2))
228	return 0;	300	return 0;
229	}	301	}
		302
		303	//TODO: generate an event or call into perl for additional checks
		304	if (ob1->self || ob2->self)
230	}	305	{
		306	ob1->optimise ();
		307	ob2->optimise ();
231		308
		309	if (ob1->self || ob2->self)
		310	return 0;
		311	}
		312
232	/* Everything passes, must be OK. */	313	/* Everything passes, must be OK. */
233	return 1;	314	return 1;
234	}	315	}
235		316
236	/*	317	/*
237	* sum_weight() is a recursive function which calculates the weight	318	* sum_weight() is a recursive function which calculates the weight
238	* an object is carrying. It goes through in figures out how much	319	* an object is carrying. It goes through in figures out how much
239	* containers are carrying, and sums it up.	320	* containers are carrying, and sums it up.
240	*/	321	*/
241	signed long sum_weight(object *op) {	322	long
		323	sum_weight (object *op)
		324	{
242	signed long sum;	325	long sum;
243	object *inv;	326	object *inv;
		327
244	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		329	{
245	if (inv->inv)	330	if (inv->inv)
246	sum_weight(inv);	331	sum_weight (inv);
247	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
248	}	333	}
		334
249	if (op->type == CONTAINER && op->stats.Str)	335	if (op->type == CONTAINER && op->stats.Str)
250	sum = (sum * (100 - op->stats.Str))/100;	336	sum = (sum * (100 - op->stats.Str)) / 100;
		337
251	if(op->carrying != sum)	338	if (op->carrying != sum)
252	op->carrying = sum;	339	op->carrying = sum;
		340
253	return sum;	341	return sum;
254	}	342	}
255		343
256	/**	344	/**
257	* Return the outermost environment object for a given object.	345	* Return the outermost environment object for a given object.
258	*/	346	*/
259		347
		348	object *
260	object *object_get_env_recursive (object *op) {	349	object_get_env_recursive (object *op)
		350	{
261	while (op->env != NULL)	351	while (op->env != NULL)
262	op = op->env;	352	op = op->env;
263	return op;	353	return op;
264	}
265
266	/*
267	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
268	* a better check. We basically keeping traversing up until we can't
269	* or find a player.
270	*/
271
272	object *is_player_inv (object *op) {
273	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
274	if (op->env==op)
275	op->env = NULL;
276	return op;
277	}	354	}
278		355
279	/*	356	/*
280	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	357	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
281	* Some error messages.	358	* Some error messages.
282	* The result of the dump is stored in the static global errmsg array.	359	* The result of the dump is stored in the static global errmsg array.
283	*/	360	*/
284		361
285	void dump_object2(object *op) {	362	char *
286	char *cp;
287	/* object *tmp;*/
288
289	if(op->arch!=NULL) {
290	strcat(errmsg,"arch ");
291	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
292	strcat(errmsg,"\n");
293	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
294	strcat(errmsg,cp);
295	#if 0
296	/* Don't dump player diffs - they are too long, mostly meaningless, and
297	* will overflow the buffer.
298	* Changed so that we don't dump inventory either. This may
299	* also overflow the buffer.
300	*/
301	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
302	strcat(errmsg,cp);
303	for (tmp=op->inv; tmp; tmp=tmp->below)
304	dump_object2(tmp);
305	#endif
306	strcat(errmsg,"end\n");
307	} else {
308	strcat(errmsg,"Object ");
309	if (op->name==NULL) strcat(errmsg, "(null)");
310	else strcat(errmsg,op->name);
311	strcat(errmsg,"\n");
312	#if 0
313	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
314	strcat(errmsg,cp);
315	for (tmp=op->inv; tmp; tmp=tmp->below)
316	dump_object2(tmp);
317	#endif
318	strcat(errmsg,"end\n");
319	}
320	}
321
322	/*
323	* Dumps an object. Returns output in the static global errmsg array.
324	*/
325
326	void dump_object(object *op) {	363	dump_object (object *op)
327	if(op==NULL) {
328	strcpy(errmsg,"[NULL pointer]");
329	return;
330	}
331	errmsg[0]='\0';
332	dump_object2(op);
333	}
334
335	/* GROS - Dumps an object. Return the result into a string */
336	/* Note that no checking is done for the validity of the target string, so */
337	/* you need to be sure that you allocated enough space for it. */
338	void dump_me(object *op, char *outstr)
339	{	364	{
340	char *cp;	365	if (!op)
		366	return strdup ("[NULLOBJ]");
341		367
342	if(op==NULL)	368	object_freezer freezer;
343	{	369	save_object (freezer, op, 1);
344	strcpy(outstr,"[NULL pointer]");	370	return freezer.as_string ();
345	return;
346	}
347	outstr[0]='\0';
348
349	if(op->arch!=NULL)
350	{
351	strcat(outstr,"arch ");
352	strcat(outstr,op->arch->name?op->arch->name:"(null)");
353	strcat(outstr,"\n");
354	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
355	strcat(outstr,cp);
356	strcat(outstr,"end\n");
357	}
358	else
359	{
360	strcat(outstr,"Object ");
361	if (op->name==NULL)
362	strcat(outstr, "(null)");
363	else
364	strcat(outstr,op->name);
365	strcat(outstr,"\n");
366	strcat(outstr,"end\n");
367	}
368	}
369
370	/*
371	* This is really verbose...Can be triggered by the P key while in DM mode.
372	* All objects are dumped to stderr (or alternate logfile, if in server-mode)
373	*/
374
375	void dump_all_objects(void) {
376	object *op;
377	for(op=objects;op!=NULL;op=op->next) {
378	dump_object(op);
379	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
380	}
381	}	371	}
382		372
383	/*	373	/*
384	* get_nearest_part(multi-object, object 2) returns the part of the	374	* get_nearest_part(multi-object, object 2) returns the part of the
385	* multi-object 1 which is closest to the second object.	375	* multi-object 1 which is closest to the second object.
386	* If it's not a multi-object, it is returned.	376	* If it's not a multi-object, it is returned.
387	*/	377	*/
388		378
		379	object *
389	object *get_nearest_part(object *op, const object *pl) {	380	get_nearest_part (object *op, const object *pl)
		381	{
390	object *tmp,*closest;	382	object *tmp, *closest;
391	int last_dist,i;	383	int last_dist, i;
		384
392	if(op->more==NULL)	385	if (op->more == NULL)
393	return op;	386	return op;
394	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	387	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
395	if((i=distance(tmp,pl))<last_dist)	388	if ((i = distance (tmp, pl)) < last_dist)
396	closest=tmp,last_dist=i;	389	closest = tmp, last_dist = i;
397	return closest;	390	return closest;
398	}	391	}
399		392
400	/*	393	/*
401	* Returns the object which has the count-variable equal to the argument.	394	* Returns the object which has the count-variable equal to the argument.
402	*/	395	*/
403		396
		397	object *
404	object *find_object(tag_t i) {	398	find_object (tag_t i)
405	object *op;	399	{
406	for(op=objects;op!=NULL;op=op->next)	400	for (object *op = object::first; op; op = op->next)
407	if(op->count==i)	401	if (op->count == i)
408	break;	402	return op;
		403
409	return op;	404	return 0;
410	}	405	}
411		406
412	/*	407	/*
413	* Returns the first object which has a name equal to the argument.	408	* Returns the first object which has a name equal to the argument.
414	* Used only by the patch command, but not all that useful.	409	* Used only by the patch command, but not all that useful.
415	* Enables features like "patch <name-of-other-player> food 999"	410	* Enables features like "patch <name-of-other-player> food 999"
416	*/	411	*/
417		412
		413	object *
418	object *find_object_name(const char *str) {	414	find_object_name (const char *str)
419	const char *name=add_string(str);	415	{
		416	shstr_cmp str_ (str);
420	object *op;	417	object *op;
		418
421	for(op=objects;op!=NULL;op=op->next)	419	for (op = object::first; op != NULL; op = op->next)
422	if(op->name==name)	420	if (op->name == str_)
423	break;	421	break;
424	free_string(name);	422
425	return op;	423	return op;
426	}	424	}
427		425
		426	void
428	void free_all_object_data(void) {	427	free_all_object_data ()
429	#ifdef MEMORY_DEBUG
430	object *op, *next;
431
432	for (op=free_objects; op!=NULL; ) {
433	next=op->next;
434	free(op);
435	nrofallocobjects--;
436	nroffreeobjects--;
437	op=next;
438	}
439	#endif
440	LOG(llevDebug,"%d allocated objects, %d free objects, STARMAX=%d\n",
441	nrofallocobjects, nroffreeobjects,STARTMAX);
442	}
443
444	/*
445	* Returns the object which this object marks as being the owner.
446	* A id-scheme is used to avoid pointing to objects which have been
447	* freed and are now reused. If this is detected, the owner is
448	* set to NULL, and NULL is returned.
449	* Changed 2004-02-12 - if the player is setting at the play again
450	* prompt, he is removed, and we don't want to treat him as an owner of
451	* anything, so check removed flag. I don't expect that this should break
452	* anything - once an object is removed, it is basically dead anyways.
453	*/
454
455	object *get_owner(object *op) {
456	if(op->owner==NULL)
457	return NULL;
458
459	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
460	op->owner->count==op->ownercount)
461	return op->owner;
462
463	op->owner=NULL;
464	op->ownercount=0;
465	return NULL;
466	}
467
468	void clear_owner(object *op)
469	{	428	{
470	if (!op) return;	429	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
471
472	if (op->owner && op->ownercount == op->owner->count)
473	op->owner->refcount--;
474
475	op->owner = NULL;
476	op->ownercount = 0;
477	}	430	}
478
479
480		431
481	/*	432	/*
482	* Sets the owner and sets the skill and exp pointers to owner's current	433	* Sets the owner and sets the skill and exp pointers to owner's current
483	* skill and experience objects.	434	* skill and experience objects.
484	*/	435	*/
485	void set_owner (object *op, object *owner)	436	void
		437	object::set_owner (object *owner)
486	{	438	{
487	if(owner==NULL||op==NULL)	439	if (!owner)
488	return;	440	return;
489		441
490	/* next line added to allow objects which own objects */	442	/* next line added to allow objects which own objects */
491	/* Add a check for ownercounts in here, as I got into an endless loop	443	/* Add a check for ownercounts in here, as I got into an endless loop
492	* with the fireball owning a poison cloud which then owned the	444	* with the fireball owning a poison cloud which then owned the
493	* fireball. I believe that was caused by one of the objects getting	445	* fireball. I believe that was caused by one of the objects getting
494	* freed and then another object replacing it. Since the ownercounts	446	* freed and then another object replacing it. Since the ownercounts
495	* didn't match, this check is valid and I believe that cause is valid.	447	* didn't match, this check is valid and I believe that cause is valid.
496	*/	448	*/
497	while (owner->owner && owner!=owner->owner &&	449	while (owner->owner)
498	owner->ownercount==owner->owner->count) owner=owner->owner;	450	owner = owner->owner;
499		451
500	/* IF the owner still has an owner, we did not resolve to a final owner.
501	* so lets not add to that.
502	*/
503	if (owner->owner) return;
504
505	op->owner=owner;	452	this->owner = owner;
506
507	op->ownercount=owner->count;
508	owner->refcount++;
509
510	}
511
512	/* Set the owner to clone's current owner and set the skill and experience
513	* objects to clone's objects (typically those objects that where the owner's
514	* current skill and experience objects at the time when clone's owner was
515	* set - not the owner's current skill and experience objects).
516	*
517	* Use this function if player created an object (e.g. fire bullet, swarm
518	* spell), and this object creates further objects whose kills should be
519	* accounted for the player's original skill, even if player has changed
520	* skills meanwhile.
521	*/
522	void copy_owner (object *op, object *clone)
523	{
524	object *owner = get_owner (clone);
525	if (owner == NULL) {
526	/* players don't have owners - they own themselves. Update
527	* as appropriate.
528	*/
529	if (clone->type == PLAYER) owner=clone;
530	else return;
531	}
532	set_owner(op, owner);
533
534	}
535
536	/*
537	* Resets vital variables in an object
538	*/
539
540	void reset_object(object *op) {
541
542	op->name = NULL;
543	op->name_pl = NULL;
544	op->title = NULL;
545	op->race = NULL;
546	op->slaying = NULL;
547	op->skill = NULL;
548	op->msg = NULL;
549	op->materialname = NULL;
550	op->lore = NULL;
551	clear_object(op);
552	}	453	}
553		454
554	/* Zero the key_values on op, decrementing the shared-string	455	/* Zero the key_values on op, decrementing the shared-string
555	* refcounts and freeing the links.	456	* refcounts and freeing the links.
556	*/	457	*/
		458	static void
557	static void free_key_values(object * op) {	459	free_key_values (object *op)
558	key_value * i;	460	{
559	key_value * next = NULL;	461	for (key_value *i = op->key_values; i != 0;)
560		462	{
561	if (op->key_values == NULL) return;	463	key_value *next = i->next;
		464	delete i;
		465
		466	i = next;
562		467	}
563	for (i = op->key_values; i != NULL; i = next) {	468
564	/* Store next *first*. */
565	next = i->next;
566
567	if (i->key) FREE_AND_CLEAR_STR(i->key);
568	if (i->value) FREE_AND_CLEAR_STR(i->value);
569	i->next = NULL;
570	free(i);
571	}
572
573	op->key_values = NULL;	469	op->key_values = 0;
574	}	470	}
575		471
576
577	/*	472	/*
578	* clear_object() frees everything allocated by an object, and also
579	* clears all variables and flags to default settings.
580	*/
581
582	void clear_object(object *op) {
583	op->clear ();
584
585	event *evt;
586	event *evt2;
587
588	/* redo this to be simpler/more efficient. Was also seeing
589	* crashes in the old code. Move this to the top - am
590	* seeing periodic crashes in this code, and would like to have
591	* as much info available as possible (eg, object name).
592	*/
593	for (evt = op->events; evt; evt=evt2) {
594	evt2 = evt->next;
595
596	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
597	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
598	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
599
600	free(evt);
601	}
602	op->events = NULL;
603
604	free_key_values(op);
605
606	/* the memset will clear all these values for us, but we need
607	* to reduce the refcount on them.
608	*/
609	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);
610	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);
611	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);
612	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);
613	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);
614	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);
615	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);
616	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);
617	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);
618
619
620	memset((void*)op, 0, sizeof (object_special));
621	/* Below here, we clear things that are not done by the memset,
622	* or set default values that are not zero.
623	*/
624	/* This is more or less true */
625	SET_FLAG(op, FLAG_REMOVED);
626
627
628	op->contr = NULL;
629	op->below=NULL;
630	op->above=NULL;
631	op->inv=NULL;
632	op->events=NULL;
633	op->container=NULL;
634	op->env=NULL;
635	op->more=NULL;
636	op->head=NULL;
637	op->map=NULL;
638	op->refcount=0;
639	op->active_next = NULL;
640	op->active_prev = NULL;
641	/* What is not cleared is next, prev, and count */
642
643	op->expmul=1.0;
644	op->face = blank_face;
645	op->attacked_by_count = (tag_t) -1;
646	if (settings.casting_time)
647	op->casting_time = -1;
648
649	}
650
651	/*
652	* copy object first frees everything allocated by the second object,	473	* copy_to first frees everything allocated by the dst object,
653	* and then copies the contends of the first object into the second	474	* and then copies the contents of itself into the second
654	* object, allocating what needs to be allocated. Basically, any	475	* object, allocating what needs to be allocated. Basically, any
655	* 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,
656	* 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
657	* will point at garbage.	478	* will point at garbage.
658	*/	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);
659		485
660	void copy_object(object *op2, object *op) {	486	*(object_copy *)dst = *this;
661	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);
662	event *evt, *evt2, *evt_new;
663		487
664	op->clear ();	488	if (is_freed)
		489	SET_FLAG (dst, FLAG_FREED);
665		490
666	/* Decrement the refcounts, but don't bother zeroing the fields;	491	if (is_removed)
667	they'll be overwritten by memcpy. */	492	SET_FLAG (dst, FLAG_REMOVED);
668	if(op->name!=NULL) free_string(op->name);
669	if(op->name_pl!=NULL) free_string(op->name_pl);
670	if(op->title!=NULL) free_string(op->title);
671	if(op->race!=NULL) free_string(op->race);
672	if(op->slaying!=NULL) free_string(op->slaying);
673	if(op->skill!=NULL) free_string(op->skill);
674	if(op->msg!=NULL) free_string(op->msg);
675	if(op->lore!=NULL) free_string(op->lore);
676	if(op->materialname != NULL) free_string(op->materialname);
677	if(op->custom_name != NULL) free_string(op->custom_name);
678		493
679	/* Basically, same code as from clear_object() */	494	if (speed < 0)
680	for (evt = op->events; evt; evt=evt2) {
681	evt2 = evt->next;
682
683	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
684	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
685	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
686
687	free(evt);
688	}
689	op->events = NULL;
690
691	free_key_values(op);
692
693	*(object_special *)op = *(object_special *)op2;
694	op2->clone (op);
695
696	if(is_freed) SET_FLAG(op,FLAG_FREED);
697	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
698	if(op->name!=NULL) add_refcount(op->name);
699	if(op->name_pl!=NULL) add_refcount(op->name_pl);
700	if(op->title!=NULL) add_refcount(op->title);
701	if(op->race!=NULL) add_refcount(op->race);
702	if(op->slaying!=NULL) add_refcount(op->slaying);
703	if(op->skill!=NULL) add_refcount(op->skill);
704	if(op->lore!=NULL) add_refcount(op->lore);
705	if(op->msg!=NULL) add_refcount(op->msg);
706	if(op->custom_name!=NULL) add_refcount(op->custom_name);
707	if (op->materialname != NULL) add_refcount(op->materialname);
708
709	if((op2->speed<0) && !editor)
710	op->speed_left=op2->speed_left-RANDOM()%200/100.0;	495	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
711		496
712	/* Copy over event information */
713	evt2 = NULL;
714	for (evt = op2->events; evt; evt=evt->next) {
715	evt_new = (event *) malloc(sizeof(event));
716	memcpy(evt_new, evt, sizeof(event));
717	if (evt_new->hook) add_refcount(evt_new->hook);
718	if (evt_new->plugin) add_refcount(evt_new->plugin);
719	if (evt_new->options) add_refcount(evt_new->options);
720	evt_new->next = NULL;
721
722	/* Try to be a little clever here, and store away the
723	* last event we copied, so that its simpler to update the
724	* pointer.
725	*/
726	if (evt2)
727	evt2->next = evt_new;
728	else
729	op->events = evt_new;
730
731	evt2 = evt_new;
732	}
733	/* Copy over key_values, if any. */	497	/* Copy over key_values, if any. */
734	if (op2->key_values != NULL) {	498	if (key_values)
735	key_value * tail = NULL;	499	{
		500	key_value *tail = 0;
736	key_value * i;	501	key_value *i;
737		502
738	op->key_values = NULL;	503	dst->key_values = 0;
739		504
740	for (i = op2->key_values; i != NULL; i = i->next) {	505	for (i = key_values; i; i = i->next)
741	key_value * new_link = (key_value *) malloc(sizeof(key_value));	506	{
		507	key_value *new_link = new key_value;
742		508
743	new_link->next = NULL;	509	new_link->next = 0;
744	new_link->key = add_refcount(i->key);	510	new_link->key = i->key;
745	if (i->value)	511	new_link->value = i->value;
746	new_link->value = add_refcount(i->value);
747	else
748	new_link->value = NULL;
749		512
750	/* Try and be clever here, too. */	513	/* Try and be clever here, too. */
751	if (op->key_values == NULL) {	514	if (!dst->key_values)
752	op->key_values = new_link;	515	{
753	tail = new_link;	516	dst->key_values = new_link;
754	} else {	517	tail = new_link;
755	tail->next = new_link;	518	}
756	tail = new_link;	519	else
		520	{
		521	tail->next = new_link;
		522	tail = new_link;
		523	}
		524	}
757	}	525	}
758	}
759	}
760		526
761	update_ob_speed(op);	527	dst->set_speed (dst->speed);
762	}	528	}
763		529
764	/*
765	* expand_objects() allocates more objects for the list of unused objects.
766	* It is called from get_object() if the unused list is empty.
767	*/
768
769	void expand_objects(void) {
770	int i;
771	object *obj;
772	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));
773
774	if(obj==NULL)
775	fatal(OUT_OF_MEMORY);
776	free_objects=obj;
777	obj[0].prev=NULL;
778	obj[0].next= &obj[1],
779	SET_FLAG(&(obj[0]), FLAG_REMOVED);
780	SET_FLAG(&(obj[0]), FLAG_FREED);
781
782	for(i=1;i<OBJ_EXPAND-1;i++) {
783	obj[i].next= &obj[i+1],
784	obj[i].prev= &obj[i-1],
785	SET_FLAG(&(obj[i]), FLAG_REMOVED);
786	SET_FLAG(&(obj[i]), FLAG_FREED);
787	}
788	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
789	obj[OBJ_EXPAND-1].next=NULL,
790	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
791	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
792
793	nrofallocobjects += OBJ_EXPAND;
794	nroffreeobjects += OBJ_EXPAND;
795	}
796
797	/*
798	* get_object() grabs an object from the list of unused objects, makes
799	* sure it is initialised, and returns it.
800	* If there are no free objects, expand_objects() is called to get more.
801	*/
802
803	object *get_object(void) {
804	object *op;	530	object *
805		531	object::clone ()
806	if(free_objects==NULL) {	532	{
807	expand_objects();	533	object *neu = create ();
808	}	534	copy_to (neu);
809	op=free_objects;
810	#ifdef MEMORY_DEBUG
811	/* The idea is hopefully by doing a realloc, the memory
812	* debugging program will now use the current stack trace to
813	* report leaks.
814	*/
815	op = realloc(op, sizeof(object));
816	SET_FLAG(op, FLAG_REMOVED);
817	SET_FLAG(op, FLAG_FREED);
818	#endif
819
820	if(!QUERY_FLAG(op,FLAG_FREED)) {
821	LOG(llevError,"Fatal: Getting busy object.\n");
822	}
823	free_objects=op->next;
824	if(free_objects!=NULL)
825	free_objects->prev=NULL;
826	op->count= ++ob_count;
827	op->name=NULL;
828	op->name_pl=NULL;
829	op->title=NULL;
830	op->race=NULL;
831	op->slaying=NULL;
832	op->skill = NULL;
833	op->lore=NULL;
834	op->msg=NULL;
835	op->materialname=NULL;
836	op->next=objects;
837	op->prev=NULL;
838	op->active_next = NULL;
839	op->active_prev = NULL;
840	if(objects!=NULL)
841	objects->prev=op;
842	objects=op;
843	clear_object(op);
844	SET_FLAG(op,FLAG_REMOVED);
845	nroffreeobjects--;
846	return op;	535	return neu;
847	}	536	}
848		537
849	/*	538	/*
850	* 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
851	* 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
852	* 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.
853	*/	542	*/
854		543
		544	void
855	void update_turn_face(object *op) {	545	update_turn_face (object *op)
		546	{
856	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	547	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
857	return;	548	return;
858	SET_ANIMATION(op, op->direction);	549	SET_ANIMATION (op, op->direction);
859	update_object(op,UP_OBJ_FACE);	550	update_object (op, UP_OBJ_FACE);
860	}	551	}
861		552
862	/*	553	/*
863	* 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
864	* 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.
865	* 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.
866	*/	557	*/
867		558	void
868	void update_ob_speed(object *op) {	559	object::set_speed (float speed)
		560	{
869	extern int arch_init;	561	extern int arch_init;
870		562
871	/* No reason putting the archetypes objects on the speed list,	563	/* No reason putting the archetypes objects on the speed list,
872	* since they never really need to be updated.	564	* since they never really need to be updated.
873	*/	565	*/
874		566	if (flag [FLAG_FREED] && speed)
875	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	567	{
876	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	568	LOG (llevError, "Object %s is freed but has speed.\n", &name);
877	#ifdef MANY_CORES	569	speed = 0;
878	abort();
879	#else
880	op->speed = 0;
881	#endif
882	}	570	}
		571
		572	this->speed = speed;
		573
883	if (arch_init) {	574	if (arch_init)
884	return;
885	}
886	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
887	/* If already on active list, don't do anything */
888	if (op->active_next || op->active_prev || op==active_objects)
889	return;	575	return;
890		576
		577	if (FABS (speed) > MIN_ACTIVE_SPEED)
		578	{
		579	/* If already on active list, don't do anything */
		580	if (active_next || active_prev || this == active_objects)
		581	return;
		582
891	/* process_events() expects us to insert the object at the beginning	583	/* process_events() expects us to insert the object at the beginning
892	* of the list. */	584	* of the list. */
893	op->active_next = active_objects;	585	active_next = active_objects;
894	if (op->active_next!=NULL)	586
895	op->active_next->active_prev = op;	587	if (active_next)
896	active_objects = op;	588	active_next->active_prev = this;
		589
		590	active_objects = this;
		591	}
		592	else
897	}	593	{
898	else {
899	/* If not on the active list, nothing needs to be done */	594	/* If not on the active list, nothing needs to be done */
900	if (!op->active_next && !op->active_prev && op!=active_objects)	595	if (!active_next && !active_prev && this != active_objects)
901	return;	596	return;
902		597
903	if (op->active_prev==NULL) {	598	if (!active_prev)
		599	{
904	active_objects = op->active_next;	600	active_objects = active_next;
905	if (op->active_next!=NULL)	601
906	op->active_next->active_prev = NULL;
907	}
908	else {
909	op->active_prev->active_next = op->active_next;
910	if (op->active_next)	602	if (active_next)
		603	active_next->active_prev = 0;
		604	}
		605	else
		606	{
		607	active_prev->active_next = active_next;
		608
		609	if (active_next)
911	op->active_next->active_prev = op->active_prev;	610	active_next->active_prev = active_prev;
912	}	611	}
913	op->active_next = NULL;	612
914	op->active_prev = NULL;	613	active_next = 0;
		614	active_prev = 0;
915	}	615	}
916	}	616	}
917		617
918	/* This function removes object 'op' from the list of active	618	/* This function removes object 'op' from the list of active
919	* objects.	619	* objects.
…		…
921	* reference maps where you don't want an object that isn't	621	* reference maps where you don't want an object that isn't
922	* in play chewing up cpu time getting processed.	622	* in play chewing up cpu time getting processed.
923	* The reverse of this is to call update_ob_speed, which	623	* The reverse of this is to call update_ob_speed, which
924	* will do the right thing based on the speed of the object.	624	* will do the right thing based on the speed of the object.
925	*/	625	*/
		626	void
926	void remove_from_active_list(object *op)	627	remove_from_active_list (object *op)
927	{	628	{
928	/* If not on the active list, nothing needs to be done */	629	/* If not on the active list, nothing needs to be done */
929	if (!op->active_next && !op->active_prev && op!=active_objects)	630	if (!op->active_next && !op->active_prev && op != active_objects)
930	return;	631	return;
931		632
932	if (op->active_prev==NULL) {	633	if (op->active_prev == NULL)
		634	{
933	active_objects = op->active_next;	635	active_objects = op->active_next;
934	if (op->active_next!=NULL)	636	if (op->active_next != NULL)
935	op->active_next->active_prev = NULL;	637	op->active_next->active_prev = NULL;
		638	}
		639	else
936	}	640	{
937	else {
938	op->active_prev->active_next = op->active_next;	641	op->active_prev->active_next = op->active_next;
939	if (op->active_next)	642	if (op->active_next)
940	op->active_next->active_prev = op->active_prev;	643	op->active_next->active_prev = op->active_prev;
941	}	644	}
942	op->active_next = NULL;	645	op->active_next = NULL;
943	op->active_prev = NULL;	646	op->active_prev = NULL;
944	}	647	}
945		648
946	/*	649	/*
947	* update_object() updates the array which represents the map.	650	* update_object() updates the the map.
948	* It takes into account invisible objects (and represent squares covered	651	* It takes into account invisible objects (and represent squares covered
949	* by invisible objects by whatever is below them (unless it's another	652	* by invisible objects by whatever is below them (unless it's another
950	* invisible object, etc...)	653	* invisible object, etc...)
951	* If the object being updated is beneath a player, the look-window	654	* If the object being updated is beneath a player, the look-window
952	* of that player is updated (this might be a suboptimal way of	655	* of that player is updated (this might be a suboptimal way of
953	* updating that window, though, since update_object() is called _often_)	656	* updating that window, though, since update_object() is called _often_)
954	*	657	*
955	* action is a hint of what the caller believes need to be done.	658	* action is a hint of what the caller believes need to be done.
956	* For example, if the only thing that has changed is the face (due to
957	* an animation), we don't need to call update_position until that actually
958	* comes into view of a player. OTOH, many other things, like addition/removal
959	* of walls or living creatures may need us to update the flags now.
960	* current action are:	659	* current action are:
961	* UP_OBJ_INSERT: op was inserted	660	* UP_OBJ_INSERT: op was inserted
962	* UP_OBJ_REMOVE: op was removed	661	* UP_OBJ_REMOVE: op was removed
963	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	662	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
964	* as that is easier than trying to look at what may have changed.	663	* as that is easier than trying to look at what may have changed.
965	* UP_OBJ_FACE: only the objects face has changed.	664	* UP_OBJ_FACE: only the objects face has changed.
966	*/	665	*/
967		666	void
968	void update_object(object *op, int action) {	667	update_object (object *op, int action)
969	int update_now=0, flags;	668	{
970	MoveType move_on, move_off, move_block, move_slow;	669	MoveType move_on, move_off, move_block, move_slow;
971		670
972	if (op == NULL) {	671	if (op == NULL)
		672	{
973	/* this should never happen */	673	/* this should never happen */
974	LOG(llevDebug,"update_object() called for NULL object.\n");	674	LOG (llevDebug, "update_object() called for NULL object.\n");
975	return;	675	return;
976	}
977		676	}
978	if(op->env!=NULL) {	677
		678	if (op->env)
		679	{
979	/* Animation is currently handled by client, so nothing	680	/* Animation is currently handled by client, so nothing
980	* to do in this case.	681	* to do in this case.
981	*/	682	*/
982	return;	683	return;
983	}	684	}
984		685
985	/* If the map is saving, don't do anything as everything is	686	/* If the map is saving, don't do anything as everything is
986	* going to get freed anyways.	687	* going to get freed anyways.
987	*/	688	*/
988	if (!op->map || op->map->in_memory == MAP_SAVING) return;	689	if (!op->map || op->map->in_memory == MAP_SAVING)
989		690	return;
		691
990	/* make sure the object is within map boundaries */	692	/* make sure the object is within map boundaries */
991	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	693	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
992	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	694	{
993	LOG(llevError,"update_object() called for object out of map!\n");	695	LOG (llevError, "update_object() called for object out of map!\n");
994	#ifdef MANY_CORES	696	#ifdef MANY_CORES
995	abort();	697	abort ();
996	#endif	698	#endif
997	return;	699	return;
998	}
999		700	}
1000	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
1001	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
1002	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
1003	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
1004	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
1005	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
1006		701
		702	mapspace &m = op->ms ();
		703
		704	if (m.flags_ & P_NEED_UPDATE)
		705	/* nop */;
1007	if (action == UP_OBJ_INSERT) {	706	else if (action == UP_OBJ_INSERT)
		707	{
		708	// this is likely overkill, TODO: revisit (schmorp)
1008	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	709	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
1009	update_now=1;
1010
1011	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	710	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
1012	update_now=1;	711	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
1013		712	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		713	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
1014	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	714	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
1015	update_now=1;	715	|| (m.move_on | op->move_on ) != m.move_on
1016		716	|| (m.move_off | op->move_off ) != m.move_off
1017	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	717	|| (m.move_slow | op->move_slow) != m.move_slow
1018	update_now=1;
1019
1020	if ((move_on | op->move_on) != move_on) update_now=1;
1021	if ((move_off | op->move_off) != move_off) update_now=1;
1022	/* This isn't perfect, but I don't expect a lot of objects to	718	/* This isn't perfect, but I don't expect a lot of objects to
1023	* to have move_allow right now.	719	* to have move_allow right now.
1024	*/	720	*/
1025	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	721	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
1026	update_now=1;	722	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
1027	if ((move_slow | op->move_slow) != move_slow) update_now=1;	723	m.flags_ = P_NEED_UPDATE;
1028	}	724	}
1029	/* if the object is being removed, we can't make intelligent	725	/* if the object is being removed, we can't make intelligent
1030	* decisions, because remove_ob can't really pass the object	726	* decisions, because remove_ob can't really pass the object
1031	* that is being removed.	727	* that is being removed.
1032	*/	728	*/
1033	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	729	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1034	update_now=1;	730	m.flags_ = P_NEED_UPDATE;
1035	} else if (action == UP_OBJ_FACE) {	731	else if (action == UP_OBJ_FACE)
1036	/* Nothing to do for that case */	732	/* Nothing to do for that case */ ;
1037	}
1038	else {	733	else
1039	LOG(llevError,"update_object called with invalid action: %d\n", action);	734	LOG (llevError, "update_object called with invalid action: %d\n", action);
1040	}
1041		735
1042	if (update_now) {
1043	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1044	update_position(op->map, op->x, op->y);
1045	}
1046
1047	if(op->more!=NULL)	736	if (op->more)
1048	update_object(op->more, action);	737	update_object (op->more, action);
1049	}	738	}
1050		739
		740	object::vector object::objects; // not yet used
		741	object *object::first;
1051		742
1052	/*	743	object::object ()
1053	* free_object() frees everything allocated by an object, removes	744	{
1054	* it from the list of used objects, and puts it on the list of
1055	* free objects. The IS_FREED() flag is set in the object.
1056	* The object must have been removed by remove_ob() first for
1057	* this function to succeed.
1058	*
1059	* If free_inventory is set, free inventory as well. Else drop items in
1060	* inventory to the ground.
1061	*/
1062
1063	void free_object(object *ob) {
1064	free_object2(ob, 0);
1065	}
1066	void free_object2(object *ob, int free_inventory) {
1067	object *tmp,*op;
1068
1069	ob->clear ();
1070
1071	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {
1072	LOG(llevDebug,"Free object called with non removed object\n");
1073	dump_object(ob);
1074	#ifdef MANY_CORES
1075	abort();
1076	#endif
1077	}
1078	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {
1079	LOG(llevMonster,"Warning: tried to free friendly object.\n");
1080	remove_friendly_object(ob);
1081	}
1082	if(QUERY_FLAG(ob,FLAG_FREED)) {
1083	dump_object(ob);
1084	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);
1085	return;
1086	}
1087	if(ob->more!=NULL) {
1088	free_object2(ob->more, free_inventory);
1089	ob->more=NULL;
1090	}
1091	if (ob->inv) {
1092	/* Only if the space blocks everything do we not process -
1093	* if some form of movemnt is allowed, let objects
1094	* drop on that space.
1095	*/
1096	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||
1097	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))
1098	{
1099	op=ob->inv;
1100	while(op!=NULL) {
1101	tmp=op->below;
1102	remove_ob(op);
1103	free_object2(op, free_inventory);
1104	op=tmp;
1105	}
1106	}
1107	else { /* Put objects in inventory onto this space */
1108	op=ob->inv;
1109	while(op!=NULL) {
1110	tmp=op->below;
1111	remove_ob(op);
1112	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||
1113	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))
1114	free_object(op);
1115	else {
1116	op->x=ob->x;
1117	op->y=ob->y;
1118	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */
1119	}
1120	op=tmp;
1121	}
1122	}
1123	}
1124	/* Remove object from the active list */
1125	ob->speed = 0;
1126	update_ob_speed(ob);
1127
1128	SET_FLAG(ob, FLAG_FREED);	745	SET_FLAG (this, FLAG_REMOVED);
1129	ob->count = 0;
1130		746
		747	expmul = 1.0;
		748	face = blank_face;
		749	}
		750
		751	object::~object ()
		752	{
		753	free_key_values (this);
		754	}
		755
		756	void object::link ()
		757	{
		758	count = ++ob_count;
		759	uuid = gen_uuid ();
		760
		761	prev = 0;
		762	next = object::first;
		763
		764	if (object::first)
		765	object::first->prev = this;
		766
		767	object::first = this;
		768	}
		769
		770	void object::unlink ()
		771	{
		772	if (this == object::first)
		773	object::first = next;
		774
1131	/* Remove this object from the list of used objects */	775	/* Remove this object from the list of used objects */
1132	if(ob->prev==NULL) {	776	if (prev) prev->next = next;
1133	objects=ob->next;	777	if (next) next->prev = prev;
1134	if(objects!=NULL)
1135	objects->prev=NULL;
1136	}
1137	else {
1138	ob->prev->next=ob->next;
1139	if(ob->next!=NULL)
1140	ob->next->prev=ob->prev;
1141	}
1142
1143	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1144	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1145	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1146	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1147	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1148	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1149	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1150	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1151	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1152		778
		779	prev = 0;
		780	next = 0;
		781	}
		782
		783	/*
		784	* Remove and free all objects in the inventory of the given object.
		785	* object.c ?
		786	*/
		787	void
		788	object::destroy_inv (bool drop_to_ground)
		789	{
		790	/* Only if the space blocks everything do we not process -
		791	* if some form of movement is allowed, let objects
		792	* drop on that space.
		793	*/
		794	if (!drop_to_ground
		795	|| !map
		796	|| map->in_memory != MAP_IN_MEMORY
		797	|| map->at (x, y).move_block == MOVE_ALL)
1153		798	{
1154	/* Why aren't events freed? */	799	while (inv)
1155	free_key_values(ob);	800	{
		801	inv->destroy_inv (drop_to_ground);
		802	inv->destroy ();
		803	}
		804	}
		805	else
		806	{ /* Put objects in inventory onto this space */
		807	while (inv)
		808	{
		809	object *op = inv;
1156		810
1157	#if 0 /* MEMORY_DEBUG*/	811	if (op->flag [FLAG_STARTEQUIP]
1158	/* This is a nice idea. Unfortunately, a lot of the code in crossfire	812	|| op->flag [FLAG_NO_DROP]
1159	* presumes the freed_object will stick around for at least a little	813	|| op->type == RUNE
1160	* bit	814	|| op->type == TRAP
1161	*/	815	|| op->flag [FLAG_IS_A_TEMPLATE])
1162	/* this is necessary so that memory debugging programs will	816	op->destroy ();
1163	* be able to accurately report source of malloc. If we recycle	817	else
1164	* objects, then some other area may be doing the get_object	818	map->insert (op, x, y);
1165	* and not freeing it, but the original one that malloc'd the	819	}
1166	* object will get the blame.	820	}
1167	*/
1168	free(ob);
1169	#else
1170
1171	/* Now link it with the free_objects list: */
1172	ob->prev=NULL;
1173	ob->next=free_objects;
1174	if(free_objects!=NULL)
1175	free_objects->prev=ob;
1176	free_objects=ob;
1177	nroffreeobjects++;
1178	#endif
1179	}	821	}
1180		822
1181	/*	823	object *object::create ()
1182	* count_free() returns the number of objects on the list of free objects.	824	{
1183	*/
1184
1185	int count_free(void) {
1186	int i=0;
1187	object *tmp=free_objects;	825	object *op = new object;
1188	while(tmp!=NULL)	826	op->link ();
1189	tmp=tmp->next, i++;
1190	return i;	827	return op;
1191	}	828	}
1192		829
1193	/*	830	void
1194	* count_used() returns the number of objects on the list of used objects.	831	object::do_destroy ()
1195	*/	832	{
		833	if (flag [FLAG_IS_LINKED])
		834	remove_button_link (this);
1196		835
1197	int count_used(void) {	836	if (flag [FLAG_FRIENDLY])
1198	int i=0;	837	remove_friendly_object (this);
1199	object *tmp=objects;	838
1200	while(tmp!=NULL)	839	if (!flag [FLAG_REMOVED])
1201	tmp=tmp->next, i++;	840	remove ();
		841
		842	if (flag [FLAG_FREED])
1202	return i;	843	return;
1203	}
1204		844
1205	/*	845	set_speed (0);
1206	* count_active() returns the number of objects on the list of active objects.
1207	*/
1208		846
1209	int count_active(void) {	847	flag [FLAG_FREED] = 1;
1210	int i=0;	848
1211	object *tmp=active_objects;	849	attachable::do_destroy ();
1212	while(tmp!=NULL)	850
1213	tmp=tmp->active_next, i++;	851	destroy_inv (true);
		852	unlink ();
		853
		854	// hack to ensure that freed objects still have a valid map
		855	{
		856	static maptile *freed_map; // freed objects are moved here to avoid crashes
		857
		858	if (!freed_map)
		859	{
		860	freed_map = new maptile;
		861
		862	freed_map->name = "/internal/freed_objects_map";
		863	freed_map->width = 3;
		864	freed_map->height = 3;
		865
		866	freed_map->allocate ();
		867	}
		868
		869	map = freed_map;
		870	x = 1;
		871	y = 1;
		872	}
		873
		874	head = 0;
		875
		876	if (more)
		877	{
		878	more->destroy ();
		879	more = 0;
		880	}
		881
		882	// clear those pointers that likely might have circular references to us
		883	owner = 0;
		884	enemy = 0;
		885	attacked_by = 0;
		886
		887	// only relevant for players(?), but make sure of it anyways
		888	contr = 0;
		889	}
		890
		891	void
		892	object::destroy (bool destroy_inventory)
		893	{
		894	if (destroyed ())
1214	return i;	895	return;
		896
		897	if (destroy_inventory)
		898	destroy_inv (false);
		899
		900	attachable::destroy ();
1215	}	901	}
1216		902
1217	/*	903	/*
1218	* sub_weight() recursively (outwards) subtracts a number from the	904	* sub_weight() recursively (outwards) subtracts a number from the
1219	* weight of an object (and what is carried by it's environment(s)).	905	* weight of an object (and what is carried by it's environment(s)).
1220	*/	906	*/
1221		907	void
1222	void sub_weight (object *op, signed long weight) {	908	sub_weight (object *op, signed long weight)
		909	{
1223	while (op != NULL) {	910	while (op != NULL)
		911	{
1224	if (op->type == CONTAINER) {	912	if (op->type == CONTAINER)
1225	weight=(signed long)(weight*(100-op->stats.Str)/100);	913	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1226	}	914
1227	op->carrying-=weight;	915	op->carrying -= weight;
1228	op = op->env;	916	op = op->env;
1229	}	917	}
1230	}	918	}
1231		919
1232	/* remove_ob(op):	920	/* op->remove ():
1233	* This function removes the object op from the linked list of objects	921	* This function removes the object op from the linked list of objects
1234	* which it is currently tied to. When this function is done, the	922	* which it is currently tied to. When this function is done, the
1235	* object will have no environment. If the object previously had an	923	* object will have no environment. If the object previously had an
1236	* environment, the x and y coordinates will be updated to	924	* environment, the x and y coordinates will be updated to
1237	* the previous environment.	925	* the previous environment.
1238	* Beware: This function is called from the editor as well!	926	* Beware: This function is called from the editor as well!
1239	*/	927	*/
1240		928	void
1241	void remove_ob(object *op) {	929	object::remove ()
		930	{
1242	object *tmp,*last=NULL;	931	object *tmp, *last = 0;
1243	object *otmp;	932	object *otmp;
1244	tag_t tag;
1245	int check_walk_off;
1246	mapstruct *m;
1247	sint16 x,y;
1248
1249		933
1250	if(QUERY_FLAG(op,FLAG_REMOVED)) {	934	if (QUERY_FLAG (this, FLAG_REMOVED))
1251	dump_object(op);	935	return;
1252	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1253		936
1254	/* Changed it to always dump core in this case. As has been learned
1255	* in the past, trying to recover from errors almost always
1256	* make things worse, and this is a real error here - something
1257	* that should not happen.
1258	* Yes, if this was a mission critical app, trying to do something
1259	* to recover may make sense, but that is because failure of the app
1260	* may have other disastrous problems. Cf runs out of a script
1261	* so is easily enough restarted without any real problems.
1262	* MSW 2001-07-01
1263	*/
1264	abort();
1265	}
1266	if(op->more!=NULL)
1267	remove_ob(op->more);
1268
1269	SET_FLAG(op, FLAG_REMOVED);	937	SET_FLAG (this, FLAG_REMOVED);
		938	INVOKE_OBJECT (REMOVE, this);
1270		939
		940	if (more)
		941	more->remove ();
		942
1271	/*	943	/*
1272	* In this case, the object to be removed is in someones	944	* In this case, the object to be removed is in someones
1273	* inventory.	945	* inventory.
1274	*/	946	*/
1275	if(op->env!=NULL) {	947	if (env)
1276	if(op->nrof)	948	{
		949	if (nrof)
1277	sub_weight(op->env, op->weight*op->nrof);	950	sub_weight (env, weight * nrof);
1278	else	951	else
1279	sub_weight(op->env, op->weight+op->carrying);	952	sub_weight (env, weight + carrying);
1280		953
1281	/* NO_FIX_PLAYER is set when a great many changes are being	954	/* NO_FIX_PLAYER is set when a great many changes are being
1282	* made to players inventory. If set, avoiding the call	955	* made to players inventory. If set, avoiding the call
1283	* to save cpu time.	956	* to save cpu time.
1284	*/	957	*/
1285	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	958	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1286	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	959	otmp->update_stats ();
1287	fix_player(otmp);
1288		960
1289	if(op->above!=NULL)	961	if (above != NULL)
1290	op->above->below=op->below;	962	above->below = below;
1291	else	963	else
1292	op->env->inv=op->below;	964	env->inv = below;
1293		965
1294	if(op->below!=NULL)	966	if (below != NULL)
1295	op->below->above=op->above;	967	below->above = above;
1296		968
1297	/* we set up values so that it could be inserted into	969	/* we set up values so that it could be inserted into
1298	* the map, but we don't actually do that - it is up	970	* the map, but we don't actually do that - it is up
1299	* to the caller to decide what we want to do.	971	* to the caller to decide what we want to do.
1300	*/	972	*/
1301	op->x=op->env->x,op->y=op->env->y;	973	x = env->x, y = env->y;
1302	op->ox=op->x,op->oy=op->y;	974	map = env->map;
1303	op->map=op->env->map;	975	above = 0, below = 0;
1304	op->above=NULL,op->below=NULL;	976	env = 0;
1305	op->env=NULL;	977	}
1306	return;	978	else if (map)
1307	}	979	{
1308
1309	/* If we get here, we are removing it from a map */
1310	if (op->map == NULL) return;
1311
1312	x = op->x;
1313	y = op->y;
1314	m = get_map_from_coord(op->map, &x, &y);
1315
1316	if (!m) {
1317	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1318	op->map->path, op->x, op->y);
1319	/* in old days, we used to set x and y to 0 and continue.
1320	* it seems if we get into this case, something is probablye
1321	* screwed up and should be fixed.
1322	*/
1323	abort();
1324	}
1325	if (op->map != m) {
1326	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1327	op->map->path, m->path, op->x, op->y, x, y);
1328	}
1329
1330	/* Re did the following section of code - it looks like it had	980	/* Re did the following section of code - it looks like it had
1331	* lots of logic for things we no longer care about	981	* lots of logic for things we no longer care about
1332	*/	982	*/
1333		983
1334	/* link the object above us */	984	/* link the object above us */
1335	if (op->above)	985	if (above)
1336	op->above->below=op->below;	986	above->below = below;
1337	else	987	else
1338	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */	988	map->at (x, y).top = below; /* we were top, set new top */
1339		989
1340	/* Relink the object below us, if there is one */	990	/* Relink the object below us, if there is one */
1341	if(op->below) {	991	if (below)
1342	op->below->above=op->above;	992	below->above = above;
1343	} else {	993	else
		994	{
1344	/* Nothing below, which means we need to relink map object for this space	995	/* Nothing below, which means we need to relink map object for this space
1345	* use translated coordinates in case some oddness with map tiling is	996	* use translated coordinates in case some oddness with map tiling is
1346	* evident	997	* evident
1347	*/	998	*/
1348	if(GET_MAP_OB(m,x,y)!=op) {	999	if (GET_MAP_OB (map, x, y) != this)
1349	dump_object(op);	1000	{
		1001	char *dump = dump_object (this);
		1002	LOG (llevError,
1350	LOG(llevError,"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", errmsg);	1003	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);
1351	dump_object(GET_MAP_OB(m,x,y));	1004	free (dump);
1352	LOG(llevError,"%s\n",errmsg);	1005	dump = dump_object (GET_MAP_OB (map, x, y));
1353	}	1006	LOG (llevError, "%s\n", dump);
1354	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1007	free (dump);
1355	}	1008	}
1356	op->above=NULL;
1357	op->below=NULL;
1358		1009
		1010	map->at (x, y).bot = above; /* goes on above it. */
		1011	}
		1012
		1013	above = 0;
		1014	below = 0;
		1015
1359	if (op->map->in_memory == MAP_SAVING)	1016	if (map->in_memory == MAP_SAVING)
1360	return;	1017	return;
1361		1018
1362	tag = op->count;	1019	int check_walk_off = !flag [FLAG_NO_APPLY];
1363	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1020
1364	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1021	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)
		1022	{
1365	/* No point updating the players look faces if he is the object	1023	/* No point updating the players look faces if he is the object
1366	* being removed.	1024	* being removed.
1367	*/	1025	*/
1368		1026
1369	if(tmp->type==PLAYER && tmp!=op) {	1027	if (tmp->type == PLAYER && tmp != this)
		1028	{
1370	/* If a container that the player is currently using somehow gets	1029	/* If a container that the player is currently using somehow gets
1371	* removed (most likely destroyed), update the player view	1030	* removed (most likely destroyed), update the player view
1372	* appropriately.	1031	* appropriately.
1373	*/	1032	*/
1374	if (tmp->container==op) {	1033	if (tmp->container == this)
1375	CLEAR_FLAG(op, FLAG_APPLIED);	1034	{
1376	tmp->container=NULL;	1035	flag [FLAG_APPLIED] = 0;
1377	}	1036	tmp->container = 0;
1378	tmp->contr->socket.update_look=1;	1037	}
1379	}	1038
		1039	if (tmp->contr->ns)
		1040	tmp->contr->ns->floorbox_update ();
		1041	}
		1042
1380	/* See if player moving off should effect something */	1043	/* See if player moving off should effect something */
1381	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1044	if (check_walk_off
		1045	&& ((move_type & tmp->move_off)
1382	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1046	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1047	{
		1048	move_apply (tmp, this, 0);
1383		1049
1384	move_apply(tmp, op, NULL);	1050	if (destroyed ())
1385	if (was_destroyed (op, tag)) {	1051	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1386	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1052	}
1387	"leaving object\n", tmp->name, tmp->arch->name);
1388	}
1389	}
1390		1053
1391	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1054	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1392		1055
1393	if(tmp->above == tmp)	1056	if (tmp->above == tmp)
1394	tmp->above = NULL;	1057	tmp->above = 0;
1395	last=tmp;	1058
1396	}	1059	last = tmp;
		1060	}
		1061
1397	/* last == NULL of there are no objects on this space */	1062	/* last == NULL of there are no objects on this space */
1398	if (last==NULL) {	1063	if (!last)
1399	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1064	map->at (x, y).flags_ = P_NEED_UPDATE;
1400	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1401	* those out anyways, and if there are any flags set right now, they won't
1402	* be correct anyways.
1403	*/
1404	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1405	update_position(op->map, op->x, op->y);
1406	}
1407	else	1065	else
1408	update_object(last, UP_OBJ_REMOVE);	1066	update_object (last, UP_OBJ_REMOVE);
1409		1067
1410	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1068	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1411	update_all_los(op->map, op->x, op->y);	1069	update_all_los (map, x, y);
1412		1070	}
1413	}	1071	}
1414		1072
1415	/*	1073	/*
1416	* merge_ob(op,top):	1074	* merge_ob(op,top):
1417	*	1075	*
1418	* This function goes through all objects below and including top, and	1076	* This function goes through all objects below and including top, and
1419	* merges op to the first matching object.	1077	* merges op to the first matching object.
1420	* If top is NULL, it is calculated.	1078	* If top is NULL, it is calculated.
1421	* Returns pointer to object if it succeded in the merge, otherwise NULL	1079	* Returns pointer to object if it succeded in the merge, otherwise NULL
1422	*/	1080	*/
1423		1081	object *
1424	object *merge_ob(object *op, object *top) {	1082	merge_ob (object *op, object *top)
		1083	{
1425	if(!op->nrof)	1084	if (!op->nrof)
1426	return 0;	1085	return 0;
1427	if(top==NULL)	1086
		1087	if (top)
1428	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1088	for (top = op; top && top->above; top = top->above)
		1089	;
		1090
1429	for(;top!=NULL;top=top->below) {	1091	for (; top; top = top->below)
		1092	{
1430	if(top==op)	1093	if (top == op)
1431	continue;	1094	continue;
1432	if (CAN_MERGE(op,top))	1095
1433	{	1096	if (object::can_merge (op, top))
		1097	{
1434	top->nrof+=op->nrof;	1098	top->nrof += op->nrof;
		1099
1435	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1100	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1436	op->weight = 0; /* Don't want any adjustements now */	1101	op->weight = 0; /* Don't want any adjustements now */
1437	remove_ob(op);	1102	op->destroy ();
1438	free_object(op);
1439	return top;	1103	return top;
1440	}	1104	}
1441	}	1105	}
		1106
1442	return NULL;	1107	return 0;
1443	}	1108	}
1444		1109
1445	/*	1110	/*
1446	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1111	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1447	* job preparing multi-part monsters	1112	* job preparing multi-part monsters
1448	*/	1113	*/
		1114	object *
1449	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1115	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1450	object* tmp;	1116	{
1451	if (op->head)	1117	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1452	op=op->head;	1118	{
1453	for (tmp=op;tmp;tmp=tmp->more){
1454	tmp->x=x+tmp->arch->clone.x;	1119	tmp->x = x + tmp->arch->clone.x;
1455	tmp->y=y+tmp->arch->clone.y;	1120	tmp->y = y + tmp->arch->clone.y;
1456	}	1121	}
		1122
1457	return insert_ob_in_map (op, m, originator, flag);	1123	return insert_ob_in_map (op, m, originator, flag);
1458	}	1124	}
1459		1125
1460	/*	1126	/*
1461	* insert_ob_in_map (op, map, originator, flag):	1127	* insert_ob_in_map (op, map, originator, flag):
1462	* This function inserts the object in the two-way linked list	1128	* This function inserts the object in the two-way linked list
…		…
1475	* Return value:	1141	* Return value:
1476	* new object if 'op' was merged with other object	1142	* new object if 'op' was merged with other object
1477	* NULL if 'op' was destroyed	1143	* NULL if 'op' was destroyed
1478	* just 'op' otherwise	1144	* just 'op' otherwise
1479	*/	1145	*/
1480		1146	object *
1481	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1147	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1482	{	1148	{
1483	object *tmp, *top, *floor=NULL;	1149	object *tmp, *top, *floor = NULL;
1484	sint16 x,y;	1150	sint16 x, y;
1485		1151
1486	if (QUERY_FLAG (op, FLAG_FREED)) {	1152	if (QUERY_FLAG (op, FLAG_FREED))
		1153	{
1487	LOG (llevError, "Trying to insert freed object!\n");	1154	LOG (llevError, "Trying to insert freed object!\n");
1488	return NULL;	1155	return NULL;
		1156	}
		1157
		1158	if (m == NULL)
1489	}	1159	{
1490	if(m==NULL) {	1160	char *dump = dump_object (op);
1491	dump_object(op);
1492	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1161	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1493	return op;	1162	free (dump);
		1163	return op;
1494	}	1164	}
		1165
1495	if(out_of_map(m,op->x,op->y)) {	1166	if (out_of_map (m, op->x, op->y))
1496	dump_object(op);	1167	{
		1168	char *dump = dump_object (op);
1497	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1169	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1498	#ifdef MANY_CORES	1170	#ifdef MANY_CORES
1499	/* Better to catch this here, as otherwise the next use of this object	1171	/* Better to catch this here, as otherwise the next use of this object
1500	* is likely to cause a crash. Better to find out where it is getting	1172	* is likely to cause a crash. Better to find out where it is getting
1501	* improperly inserted.	1173	* improperly inserted.
1502	*/	1174	*/
1503	abort();	1175	abort ();
1504	#endif	1176	#endif
1505	return op;	1177	free (dump);
		1178	return op;
1506	}	1179	}
		1180
1507	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1181	if (!QUERY_FLAG (op, FLAG_REMOVED))
1508	dump_object(op);	1182	{
		1183	char *dump = dump_object (op);
1509	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1184	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1510	return op;	1185	free (dump);
		1186	return op;
		1187	}
		1188
		1189	if (op->more)
1511	}	1190	{
1512	if(op->more!=NULL) {
1513	/* The part may be on a different map. */	1191	/* The part may be on a different map. */
1514		1192
1515	object *more = op->more;	1193	object *more = op->more;
1516		1194
1517	/* We really need the caller to normalize coordinates - if	1195	/* We really need the caller to normalize coordinates - if
1518	* we set the map, that doesn't work if the location is within	1196	* we set the map, that doesn't work if the location is within
1519	* a map and this is straddling an edge. So only if coordinate	1197	* a map and this is straddling an edge. So only if coordinate
1520	* is clear wrong do we normalize it.	1198	* is clear wrong do we normalize it.
1521	*/	1199	*/
1522	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1200	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1523	/* Debugging information so you can see the last coordinates this object had */
1524	more->ox = more->x;
1525	more->oy = more->y;
1526	more->map = get_map_from_coord(m, &more->x, &more->y);	1201	more->map = get_map_from_coord (m, &more->x, &more->y);
1527	} else if (!more->map) {	1202	else if (!more->map)
		1203	{
1528	/* For backwards compatibility - when not dealing with tiled maps,	1204	/* For backwards compatibility - when not dealing with tiled maps,
1529	* more->map should always point to the parent.	1205	* more->map should always point to the parent.
1530	*/	1206	*/
1531	more->map = m;	1207	more->map = m;
1532	}	1208	}
1533		1209
1534	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1210	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1211	{
1535	if ( ! op->head)	1212	if (!op->head)
1536	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1213	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1537	return NULL;	1214
1538	}	1215	return 0;
		1216	}
1539	}	1217	}
		1218
1540	CLEAR_FLAG(op,FLAG_REMOVED);	1219	CLEAR_FLAG (op, FLAG_REMOVED);
1541		1220
1542	/* Debugging information so you can see the last coordinates this object had */
1543	op->ox=op->x;
1544	op->oy=op->y;
1545
1546	/* Ideally, the caller figures this out. However, it complicates a lot	1221	/* Ideally, the caller figures this out. However, it complicates a lot
1547	* of areas of callers (eg, anything that uses find_free_spot would now	1222	* of areas of callers (eg, anything that uses find_free_spot would now
1548	* need extra work	1223	* need extra work
1549	*/	1224	*/
1550	op->map=get_map_from_coord(m, &op->x, &op->y);	1225	op->map = get_map_from_coord (m, &op->x, &op->y);
1551	x = op->x;	1226	x = op->x;
1552	y = op->y;	1227	y = op->y;
1553		1228
1554	/* this has to be done after we translate the coordinates.	1229	/* this has to be done after we translate the coordinates.
1555	*/	1230	*/
1556	if(op->nrof && !(flag & INS_NO_MERGE)) {	1231	if (op->nrof && !(flag & INS_NO_MERGE))
1557	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1232	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1558	if (CAN_MERGE(op,tmp)) {	1233	if (object::can_merge (op, tmp))
1559	op->nrof+=tmp->nrof;	1234	{
1560	remove_ob(tmp);	1235	op->nrof += tmp->nrof;
1561	free_object(tmp);	1236	tmp->destroy ();
1562	}	1237	}
1563	}
1564		1238
1565	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1239	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1566	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1240	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1241
1567	if (!QUERY_FLAG(op, FLAG_ALIVE))	1242	if (!QUERY_FLAG (op, FLAG_ALIVE))
1568	CLEAR_FLAG(op, FLAG_NO_STEAL);	1243	CLEAR_FLAG (op, FLAG_NO_STEAL);
1569		1244
1570	if (flag & INS_BELOW_ORIGINATOR) {	1245	if (flag & INS_BELOW_ORIGINATOR)
		1246	{
1571	if (originator->map != op->map || originator->x != op->x ||	1247	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1572	originator->y != op->y) {	1248	{
1573	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1249	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1574	abort();	1250	abort ();
1575	}	1251	}
		1252
1576	op->above = originator;	1253	op->above = originator;
1577	op->below = originator->below;	1254	op->below = originator->below;
1578	if (op->below) op->below->above = op;	1255
1579	else SET_MAP_OB(op->map, op->x, op->y, op);	1256	if (op->below)
		1257	op->below->above = op;
		1258	else
		1259	op->ms ().bot = op;
		1260
1580	/* since *below* originator, no need to update top */	1261	/* since *below* originator, no need to update top */
1581	originator->below = op;	1262	originator->below = op;
1582	} else {	1263	}
		1264	else
		1265	{
1583	/* If there are other objects, then */	1266	/* If there are other objects, then */
1584	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1267	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1268	{
1585	object *last=NULL;	1269	object *last = NULL;
1586	/*	1270
		1271	/*
1587	* If there are multiple objects on this space, we do some trickier handling.	1272	* If there are multiple objects on this space, we do some trickier handling.
1588	* We've already dealt with merging if appropriate.	1273	* We've already dealt with merging if appropriate.
1589	* Generally, we want to put the new object on top. But if	1274	* Generally, we want to put the new object on top. But if
1590	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1275	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1591	* floor, we want to insert above that and no further.	1276	* floor, we want to insert above that and no further.
1592	* Also, if there are spell objects on this space, we stop processing	1277	* Also, if there are spell objects on this space, we stop processing
1593	* once we get to them. This reduces the need to traverse over all of	1278	* once we get to them. This reduces the need to traverse over all of
1594	* them when adding another one - this saves quite a bit of cpu time	1279	* them when adding another one - this saves quite a bit of cpu time
1595	* when lots of spells are cast in one area. Currently, it is presumed	1280	* when lots of spells are cast in one area. Currently, it is presumed
1596	* that flying non pickable objects are spell objects.	1281	* that flying non pickable objects are spell objects.
1597	*/	1282	*/
1598		1283
1599	while (top != NULL) {	1284	while (top != NULL)
1600	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||	1285	{
1601	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;	1286	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1602	if (QUERY_FLAG(top, FLAG_NO_PICK)	1287	floor = top;
1603	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))	1288
1604	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))	1289	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1605	{	1290	{
1606	/* We insert above top, so we want this object below this */	1291	/* We insert above top, so we want this object below this */
1607	top=top->below;	1292	top = top->below;
1608	break;	1293	break;
1609	}	1294	}
1610	last = top;	1295
1611	top = top->above;	1296	last = top;
1612	}	1297	top = top->above;
		1298	}
		1299
1613	/* Don't want top to be NULL, so set it to the last valid object */	1300	/* Don't want top to be NULL, so set it to the last valid object */
1614	top = last;	1301	top = last;
1615		1302
1616	/* We let update_position deal with figuring out what the space	1303	/* We let update_position deal with figuring out what the space
1617	* looks like instead of lots of conditions here.	1304	* looks like instead of lots of conditions here.
1618	* makes things faster, and effectively the same result.	1305	* makes things faster, and effectively the same result.
1619	*/	1306	*/
1620		1307
1621	/* Have object 'fall below' other objects that block view.	1308	/* Have object 'fall below' other objects that block view.
1622	* Unless those objects are exits, type 66	1309	* Unless those objects are exits, type 66
1623	* If INS_ON_TOP is used, don't do this processing	1310	* If INS_ON_TOP is used, don't do this processing
1624	* Need to find the object that in fact blocks view, otherwise	1311	* Need to find the object that in fact blocks view, otherwise
1625	* stacking is a bit odd.	1312	* stacking is a bit odd.
1626	*/	1313	*/
1627	if (!(flag & INS_ON_TOP) &&	1314	if (!(flag & INS_ON_TOP) &&
1628	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1315	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1629	(op->face && !op->face->visibility)) {	1316	{
1630	for (last=top; last != floor; last=last->below)	1317	for (last = top; last != floor; last = last->below)
1631	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1318	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1319	break;
1632	/* Check to see if we found the object that blocks view,	1320	/* Check to see if we found the object that blocks view,
1633	* and make sure we have a below pointer for it so that	1321	* and make sure we have a below pointer for it so that
1634	* we can get inserted below this one, which requires we	1322	* we can get inserted below this one, which requires we
1635	* set top to the object below us.	1323	* set top to the object below us.
1636	*/	1324	*/
1637	if (last && last->below && last != floor) top=last->below;	1325	if (last && last->below && last != floor)
1638	}	1326	top = last->below;
1639	} /* If objects on this space */	1327	}
		1328	} /* If objects on this space */
		1329
1640	if (flag & INS_MAP_LOAD)	1330	if (flag & INS_MAP_LOAD)
1641	top = GET_MAP_TOP(op->map,op->x,op->y);	1331	top = GET_MAP_TOP (op->map, op->x, op->y);
		1332
1642	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1333	if (flag & INS_ABOVE_FLOOR_ONLY)
		1334	top = floor;
1643		1335
1644	/* Top is the object that our object (op) is going to get inserted above.	1336	/* Top is the object that our object (op) is going to get inserted above.
1645	*/	1337	*/
1646		1338
1647	/* First object on this space */	1339	/* First object on this space */
1648	if (!top) {	1340	if (!top)
		1341	{
1649	op->above = GET_MAP_OB(op->map, op->x, op->y);	1342	op->above = GET_MAP_OB (op->map, op->x, op->y);
1650	if (op->above) op->above->below = op;	1343
		1344	if (op->above)
		1345	op->above->below = op;
		1346
1651	op->below = NULL;	1347	op->below = NULL;
1652	SET_MAP_OB(op->map, op->x, op->y, op);	1348	op->ms ().bot = op;
1653	} else { /* get inserted into the stack above top */	1349	}
		1350	else
		1351	{ /* get inserted into the stack above top */
1654	op->above = top->above;	1352	op->above = top->above;
1655	if (op->above) op->above->below = op;	1353
		1354	if (op->above)
		1355	op->above->below = op;
		1356
1656	op->below = top;	1357	op->below = top;
1657	top->above = op;	1358	top->above = op;
1658	}	1359	}
		1360
1659	if (op->above==NULL)	1361	if (op->above == NULL)
1660	SET_MAP_TOP(op->map,op->x, op->y, op);	1362	op->ms ().top = op;
1661	} /* else not INS_BELOW_ORIGINATOR */	1363	} /* else not INS_BELOW_ORIGINATOR */
1662		1364
1663	if(op->type==PLAYER)	1365	if (op->type == PLAYER)
1664	op->contr->do_los=1;	1366	op->contr->do_los = 1;
1665		1367
1666	/* If we have a floor, we know the player, if any, will be above	1368	/* If we have a floor, we know the player, if any, will be above
1667	* it, so save a few ticks and start from there.	1369	* it, so save a few ticks and start from there.
1668	*/	1370	*/
1669	if (!(flag & INS_MAP_LOAD))	1371	if (!(flag & INS_MAP_LOAD))
1670	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1372	if (object *pl = op->ms ().player ())
1671	if (tmp->type == PLAYER)	1373	if (pl->contr->ns)
1672	tmp->contr->socket.update_look=1;	1374	pl->contr->ns->floorbox_update ();
1673	}
1674		1375
1675	/* If this object glows, it may affect lighting conditions that are	1376	/* If this object glows, it may affect lighting conditions that are
1676	* visible to others on this map. But update_all_los is really	1377	* visible to others on this map. But update_all_los is really
1677	* an inefficient way to do this, as it means los for all players	1378	* an inefficient way to do this, as it means los for all players
1678	* on the map will get recalculated. The players could very well	1379	* on the map will get recalculated. The players could very well
1679	* be far away from this change and not affected in any way -	1380	* be far away from this change and not affected in any way -
1680	* this should get redone to only look for players within range,	1381	* this should get redone to only look for players within range,
1681	* or just updating the P_NEED_UPDATE for spaces within this area	1382	* or just updating the P_NEED_UPDATE for spaces within this area
1682	* of effect may be sufficient.	1383	* of effect may be sufficient.
1683	*/	1384	*/
1684	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1385	if (op->map->darkness && (op->glow_radius != 0))
1685	update_all_los(op->map, op->x, op->y);	1386	update_all_los (op->map, op->x, op->y);
1686		1387
1687
1688	/* updates flags (blocked, alive, no magic, etc) for this map space */	1388	/* updates flags (blocked, alive, no magic, etc) for this map space */
1689	update_object(op,UP_OBJ_INSERT);	1389	update_object (op, UP_OBJ_INSERT);
1690		1390
		1391	INVOKE_OBJECT (INSERT, op);
1691		1392
1692	/* Don't know if moving this to the end will break anything. However,	1393	/* Don't know if moving this to the end will break anything. However,
1693	* we want to have update_look set above before calling this.	1394	* we want to have floorbox_update called before calling this.
1694	*	1395	*
1695	* check_move_on() must be after this because code called from	1396	* check_move_on() must be after this because code called from
1696	* check_move_on() depends on correct map flags (so functions like	1397	* check_move_on() depends on correct map flags (so functions like
1697	* blocked() and wall() work properly), and these flags are updated by	1398	* blocked() and wall() work properly), and these flags are updated by
1698	* update_object().	1399	* update_object().
1699	*/	1400	*/
1700		1401
1701	/* if this is not the head or flag has been passed, don't check walk on status */	1402	/* if this is not the head or flag has been passed, don't check walk on status */
1702
1703	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1403	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1404	{
1704	if (check_move_on(op, originator))	1405	if (check_move_on (op, originator))
1705	return NULL;	1406	return 0;
1706		1407
1707	/* If we are a multi part object, lets work our way through the check	1408	/* If we are a multi part object, lets work our way through the check
1708	* walk on's.	1409	* walk on's.
1709	*/	1410	*/
1710	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1411	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1711	if (check_move_on (tmp, originator))	1412	if (check_move_on (tmp, originator))
1712	return NULL;	1413	return 0;
1713	}	1414	}
		1415
1714	return op;	1416	return op;
1715	}	1417	}
1716		1418
1717	/* this function inserts an object in the map, but if it	1419	/* this function inserts an object in the map, but if it
1718	* finds an object of its own type, it'll remove that one first.	1420	* finds an object of its own type, it'll remove that one first.
1719	* op is the object to insert it under: supplies x and the map.	1421	* op is the object to insert it under: supplies x and the map.
1720	*/	1422	*/
		1423	void
1721	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1424	replace_insert_ob_in_map (const char *arch_string, object *op)
1722	object *tmp;	1425	{
1723	object *tmp1;	1426	object *tmp, *tmp1;
1724		1427
1725	/* first search for itself and remove any old instances */	1428	/* first search for itself and remove any old instances */
1726		1429
1727	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1430	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1728	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1431	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1729	remove_ob(tmp);	1432	tmp->destroy ();
1730	free_object(tmp);
1731	}
1732	}
1733		1433
1734	tmp1=arch_to_object(find_archetype(arch_string));	1434	tmp1 = arch_to_object (archetype::find (arch_string));
1735		1435
1736		1436	tmp1->x = op->x;
1737	tmp1->x = op->x; tmp1->y = op->y;	1437	tmp1->y = op->y;
1738	insert_ob_in_map(tmp1,op->map,op,0);	1438	insert_ob_in_map (tmp1, op->map, op, 0);
1739	}	1439	}
		1440
		1441	object *
		1442	object::insert_at (object *where, object *originator, int flags)
		1443	{
		1444	where->map->insert (this, where->x, where->y, originator, flags);
		1445	}
1740		1446
1741	/*	1447	/*
1742	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1448	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1743	* is returned contains nr objects, and the remaining parts contains	1449	* is returned contains nr objects, and the remaining parts contains
1744	* the rest (or is removed and freed if that number is 0).	1450	* the rest (or is removed and freed if that number is 0).
1745	* On failure, NULL is returned, and the reason put into the	1451	* On failure, NULL is returned, and the reason put into the
1746	* global static errmsg array.	1452	* global static errmsg array.
1747	*/	1453	*/
1748		1454	object *
1749	object *get_split_ob(object *orig_ob, uint32 nr) {	1455	get_split_ob (object *orig_ob, uint32 nr)
		1456	{
1750	object *newob;	1457	object *newob;
1751	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1458	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1752		1459
1753	if(orig_ob->nrof<nr) {	1460	if (orig_ob->nrof < nr)
1754	sprintf(errmsg,"There are only %d %ss.",
1755	orig_ob->nrof?orig_ob->nrof:1, orig_ob->name);
1756	return NULL;
1757	}	1461	{
		1462	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
		1463	return NULL;
		1464	}
		1465
1758	newob = object_create_clone(orig_ob);	1466	newob = object_create_clone (orig_ob);
		1467
1759	if((orig_ob->nrof-=nr)<1) {	1468	if ((orig_ob->nrof -= nr) < 1)
1760	if ( ! is_removed)	1469	orig_ob->destroy (1);
1761	remove_ob(orig_ob);
1762	free_object2(orig_ob, 1);
1763	}
1764	else if ( ! is_removed) {	1470	else if (!is_removed)
		1471	{
1765	if(orig_ob->env!=NULL)	1472	if (orig_ob->env != NULL)
1766	sub_weight (orig_ob->env,orig_ob->weight*nr);	1473	sub_weight (orig_ob->env, orig_ob->weight * nr);
1767	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1474	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1475	{
1768	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1476	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1769	LOG(llevDebug,
1770	"Error, Tried to split object whose map is not in memory.\n");	1477	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1771	return NULL;	1478	return NULL;
1772	}	1479	}
1773	}	1480	}
		1481
1774	newob->nrof=nr;	1482	newob->nrof = nr;
1775		1483
1776	return newob;	1484	return newob;
1777	}	1485	}
1778		1486
1779	/*	1487	/*
1780	* decrease_ob_nr(object, number) decreases a specified number from	1488	* decrease_ob_nr(object, number) decreases a specified number from
1781	* the amount of an object. If the amount reaches 0, the object	1489	* the amount of an object. If the amount reaches 0, the object
1782	* is subsequently removed and freed.	1490	* is subsequently removed and freed.
1783	*	1491	*
1784	* Return value: 'op' if something is left, NULL if the amount reached 0	1492	* Return value: 'op' if something is left, NULL if the amount reached 0
1785	*/	1493	*/
1786		1494
		1495	object *
1787	object *decrease_ob_nr (object *op, uint32 i)	1496	decrease_ob_nr (object *op, uint32 i)
1788	{	1497	{
1789	object *tmp;	1498	object *tmp;
1790	player *pl;
1791		1499
1792	if (i == 0) /* objects with op->nrof require this check */	1500	if (i == 0) /* objects with op->nrof require this check */
1793	return op;	1501	return op;
1794		1502
1795	if (i > op->nrof)	1503	if (i > op->nrof)
1796	i = op->nrof;	1504	i = op->nrof;
1797		1505
1798	if (QUERY_FLAG (op, FLAG_REMOVED))	1506	if (QUERY_FLAG (op, FLAG_REMOVED))
		1507	op->nrof -= i;
		1508	else if (op->env)
		1509	{
		1510	/* is this object in the players inventory, or sub container
		1511	* therein?
		1512	*/
		1513	tmp = op->in_player ();
		1514	/* nope. Is this a container the player has opened?
		1515	* If so, set tmp to that player.
		1516	* IMO, searching through all the players will mostly
		1517	* likely be quicker than following op->env to the map,
		1518	* and then searching the map for a player.
		1519	*/
		1520	if (!tmp)
		1521	for_all_players (pl)
		1522	if (pl->ob->container == op->env)
		1523	{
		1524	tmp = pl->ob;
		1525	break;
		1526	}
		1527
		1528	if (i < op->nrof)
		1529	{
		1530	sub_weight (op->env, op->weight * i);
		1531	op->nrof -= i;
		1532	if (tmp)
		1533	esrv_send_item (tmp, op);
		1534	}
		1535	else
		1536	{
		1537	op->remove ();
		1538	op->nrof = 0;
		1539	if (tmp)
		1540	esrv_del_item (tmp->contr, op->count);
		1541	}
1799	{	1542	}
		1543	else
		1544	{
		1545	object *above = op->above;
		1546
		1547	if (i < op->nrof)
1800	op->nrof -= i;	1548	op->nrof -= i;
1801	}
1802	else if (op->env != NULL)
1803	{
1804	/* is this object in the players inventory, or sub container
1805	* therein?
1806	*/
1807	tmp = is_player_inv (op->env);
1808	/* nope. Is this a container the player has opened?
1809	* If so, set tmp to that player.
1810	* IMO, searching through all the players will mostly
1811	* likely be quicker than following op->env to the map,
1812	* and then searching the map for a player.
1813	*/
1814	if (!tmp) {
1815	for (pl=first_player; pl; pl=pl->next)
1816	if (pl->ob->container == op->env) break;
1817	if (pl) tmp=pl->ob;
1818	else tmp=NULL;
1819	}
1820
1821	if (i < op->nrof) {
1822	sub_weight (op->env, op->weight * i);
1823	op->nrof -= i;
1824	if (tmp) {
1825	esrv_send_item(tmp, op);
1826	}
1827	} else {	1549	else
		1550	{
1828	remove_ob (op);	1551	op->remove ();
1829	op->nrof = 0;	1552	op->nrof = 0;
1830	if (tmp) {
1831	esrv_del_item(tmp->contr, op->count);
1832	}
1833	}	1553	}
1834	}
1835	else
1836	{
1837	object *above = op->above;
1838		1554
1839	if (i < op->nrof) {
1840	op->nrof -= i;
1841	} else {
1842	remove_ob (op);
1843	op->nrof = 0;
1844	}
1845	/* Since we just removed op, op->above is null */	1555	/* Since we just removed op, op->above is null */
1846	for (tmp = above; tmp != NULL; tmp = tmp->above)	1556	for (tmp = above; tmp; tmp = tmp->above)
1847	if (tmp->type == PLAYER) {	1557	if (tmp->type == PLAYER)
		1558	{
1848	if (op->nrof)	1559	if (op->nrof)
1849	esrv_send_item(tmp, op);	1560	esrv_send_item (tmp, op);
1850	else	1561	else
1851	esrv_del_item(tmp->contr, op->count);	1562	esrv_del_item (tmp->contr, op->count);
1852	}	1563	}
1853	}	1564	}
1854		1565
1855	if (op->nrof) {	1566	if (op->nrof)
1856	return op;	1567	return op;
1857	} else {	1568	else
1858	free_object (op);	1569	{
		1570	op->destroy ();
1859	return NULL;	1571	return 0;
1860	}	1572	}
1861	}	1573	}
1862		1574
1863	/*	1575	/*
1864	* add_weight(object, weight) adds the specified weight to an object,	1576	* add_weight(object, weight) adds the specified weight to an object,
1865	* and also updates how much the environment(s) is/are carrying.	1577	* and also updates how much the environment(s) is/are carrying.
1866	*/	1578	*/
1867		1579
		1580	void
1868	void add_weight (object *op, signed long weight) {	1581	add_weight (object *op, signed long weight)
		1582	{
1869	while (op!=NULL) {	1583	while (op != NULL)
		1584	{
1870	if (op->type == CONTAINER) {	1585	if (op->type == CONTAINER)
1871	weight=(signed long)(weight*(100-op->stats.Str)/100);	1586	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1872	}	1587
1873	op->carrying+=weight;	1588	op->carrying += weight;
1874	op=op->env;	1589	op = op->env;
1875	}	1590	}
1876	}	1591	}
1877		1592
		1593	object *
		1594	insert_ob_in_ob (object *op, object *where)
		1595	{
		1596	if (!where)
		1597	{
		1598	char *dump = dump_object (op);
		1599	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1600	free (dump);
		1601	return op;
		1602	}
		1603
		1604	if (where->head)
		1605	{
		1606	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1607	where = where->head;
		1608	}
		1609
		1610	return where->insert (op);
		1611	}
		1612
1878	/*	1613	/*
1879	* insert_ob_in_ob(op,environment):	1614	* env->insert (op)
1880	* This function inserts the object op in the linked list	1615	* This function inserts the object op in the linked list
1881	* inside the object environment.	1616	* inside the object environment.
1882	*	1617	*
1883	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1884	* the inventory at the last position or next to other objects of the same
1885	* type.
1886	* Frank: Now sorted by type, archetype and magic!
1887	*
1888	* The function returns now pointer to inserted item, and return value can	1618	* The function returns now pointer to inserted item, and return value can
1889	* be != op, if items are merged. -Tero	1619	* be != op, if items are merged. -Tero
1890	*/	1620	*/
1891		1621
1892	object *insert_ob_in_ob(object *op,object *where) {	1622	object *
		1623	object::insert (object *op)
		1624	{
1893	object *tmp, *otmp;	1625	object *tmp, *otmp;
1894		1626
1895	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1627	if (!QUERY_FLAG (op, FLAG_REMOVED))
1896	dump_object(op);	1628	op->remove ();
1897	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1629
1898	return op;
1899	}
1900	if(where==NULL) {
1901	dump_object(op);
1902	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1903	return op;
1904	}
1905	if (where->head) {
1906	LOG(llevDebug,
1907	"Warning: Tried to insert object wrong part of multipart object.\n");
1908	where = where->head;
1909	}
1910	if (op->more) {	1630	if (op->more)
		1631	{
1911	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1632	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1912	op->name, op->count);
1913	return op;	1633	return op;
1914	}	1634	}
		1635
1915	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1636	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1916	CLEAR_FLAG(op, FLAG_REMOVED);	1637	CLEAR_FLAG (op, FLAG_REMOVED);
1917	if(op->nrof) {	1638	if (op->nrof)
		1639	{
1918	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1640	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1919	if ( CAN_MERGE(tmp,op) ) {	1641	if (object::can_merge (tmp, op))
		1642	{
1920	/* return the original object and remove inserted object	1643	/* return the original object and remove inserted object
1921	(client needs the original object) */	1644	(client needs the original object) */
1922	tmp->nrof += op->nrof;	1645	tmp->nrof += op->nrof;
1923	/* Weight handling gets pretty funky. Since we are adding to	1646	/* Weight handling gets pretty funky. Since we are adding to
1924	* tmp->nrof, we need to increase the weight.	1647	* tmp->nrof, we need to increase the weight.
1925	*/	1648	*/
1926	add_weight (where, op->weight*op->nrof);	1649	add_weight (this, op->weight * op->nrof);
1927	SET_FLAG(op, FLAG_REMOVED);	1650	SET_FLAG (op, FLAG_REMOVED);
1928	free_object(op); /* free the inserted object */	1651	op->destroy (); /* free the inserted object */
1929	op = tmp;	1652	op = tmp;
1930	remove_ob (op); /* and fix old object's links */	1653	op->remove (); /* and fix old object's links */
1931	CLEAR_FLAG(op, FLAG_REMOVED);	1654	CLEAR_FLAG (op, FLAG_REMOVED);
1932	break;	1655	break;
1933	}	1656	}
1934		1657
1935	/* I assume combined objects have no inventory	1658	/* I assume combined objects have no inventory
1936	* We add the weight - this object could have just been removed	1659	* We add the weight - this object could have just been removed
1937	* (if it was possible to merge). calling remove_ob will subtract	1660	* (if it was possible to merge). calling remove_ob will subtract
1938	* the weight, so we need to add it in again, since we actually do	1661	* the weight, so we need to add it in again, since we actually do
1939	* the linking below	1662	* the linking below
1940	*/	1663	*/
1941	add_weight (where, op->weight*op->nrof);	1664	add_weight (this, op->weight * op->nrof);
		1665	}
1942	} else	1666	else
1943	add_weight (where, (op->weight+op->carrying));	1667	add_weight (this, (op->weight + op->carrying));
1944		1668
1945	otmp=is_player_inv(where);	1669	otmp = this->in_player ();
1946	if (otmp&&otmp->contr!=NULL) {	1670	if (otmp && otmp->contr)
1947	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1671	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1948	fix_player(otmp);	1672	otmp->update_stats ();
1949	}
1950		1673
1951	op->map=NULL;	1674	op->map = 0;
1952	op->env=where;	1675	op->env = this;
1953	op->above=NULL;	1676	op->above = 0;
1954	op->below=NULL;	1677	op->below = 0;
1955	op->x=0,op->y=0;	1678	op->x = 0, op->y = 0;
1956	op->ox=0,op->oy=0;
1957		1679
1958	/* reset the light list and los of the players on the map */	1680	/* reset the light list and los of the players on the map */
1959	if((op->glow_radius!=0)&&where->map)	1681	if ((op->glow_radius != 0) && map)
1960	{	1682	{
1961	#ifdef DEBUG_LIGHTS	1683	#ifdef DEBUG_LIGHTS
1962	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1684	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1963	op->name);
1964	#endif /* DEBUG_LIGHTS */	1685	#endif /* DEBUG_LIGHTS */
1965	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1686	if (map->darkness)
		1687	update_all_los (map, x, y);
1966	}	1688	}
1967		1689
1968	/* Client has no idea of ordering so lets not bother ordering it here.	1690	/* Client has no idea of ordering so lets not bother ordering it here.
1969	* It sure simplifies this function...	1691	* It sure simplifies this function...
1970	*/	1692	*/
1971	if (where->inv==NULL)	1693	if (!inv)
1972	where->inv=op;	1694	inv = op;
1973	else {	1695	else
		1696	{
1974	op->below = where->inv;	1697	op->below = inv;
1975	op->below->above = op;	1698	op->below->above = op;
1976	where->inv = op;	1699	inv = op;
1977	}	1700	}
		1701
		1702	INVOKE_OBJECT (INSERT, this);
		1703
1978	return op;	1704	return op;
1979	}	1705	}
1980		1706
1981	/*	1707	/*
1982	* Checks if any objects has a move_type that matches objects	1708	* Checks if any objects has a move_type that matches objects
…		…
1996	*	1722	*
1997	* MSW 2001-07-08: Check all objects on space, not just those below	1723	* MSW 2001-07-08: Check all objects on space, not just those below
1998	* object being inserted. insert_ob_in_map may not put new objects	1724	* object being inserted. insert_ob_in_map may not put new objects
1999	* on top.	1725	* on top.
2000	*/	1726	*/
2001		1727	int
2002	int check_move_on (object *op, object *originator)	1728	check_move_on (object *op, object *originator)
2003	{	1729	{
2004	object *tmp;	1730	object *tmp;
2005	tag_t tag;
2006	mapstruct *m=op->map;	1731	maptile *m = op->map;
2007	int x=op->x, y=op->y;	1732	int x = op->x, y = op->y;
		1733
2008	MoveType move_on, move_slow, move_block;	1734	MoveType move_on, move_slow, move_block;
2009		1735
2010	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1736	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2011	return 0;
2012
2013	tag = op->count;
2014
2015	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
2016	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
2017	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
2018
2019	/* if nothing on this space will slow op down or be applied,
2020	* no need to do checking below. have to make sure move_type
2021	* is set, as lots of objects don't have it set - we treat that
2022	* as walking.
2023	*/
2024	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
2025	return 0;
2026
2027	/* This is basically inverse logic of that below - basically,
2028	* if the object can avoid the move on or slow move, they do so,
2029	* but can't do it if the alternate movement they are using is
2030	* blocked. Logic on this seems confusing, but does seem correct.
2031	*/
2032	if ((op->move_type & ~move_on & ~move_block) != 0 &&
2033	(op->move_type & ~move_slow & ~move_block) != 0) return 0;
2034
2035	/* The objects have to be checked from top to bottom.
2036	* Hence, we first go to the top:
2037	*/
2038
2039	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&
2040	tmp->above!=NULL; tmp=tmp->above) {
2041	/* Trim the search when we find the first other spell effect
2042	* this helps performance so that if a space has 50 spell objects,
2043	* we don't need to check all of them.
2044	*/
2045	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;
2046	}
2047	for(;tmp!=NULL; tmp=tmp->below) {
2048	if (tmp == op) continue; /* Can't apply yourself */
2049
2050	/* Check to see if one of the movement types should be slowed down.
2051	* Second check makes sure that the movement types not being slowed
2052	* (~slow_move) is not blocked on this space - just because the
2053	* space doesn't slow down swimming (for example), if you can't actually
2054	* swim on that space, can't use it to avoid the penalty.
2055	*/
2056	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {
2057	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2058	((op->move_type & tmp->move_slow) &&
2059	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {
2060
2061	float diff;
2062
2063	diff = tmp->move_slow_penalty*FABS(op->speed);
2064	if (op->type == PLAYER) {
2065	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||
2066	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {
2067	diff /= 4.0;
2068	}
2069	}
2070	op->speed_left -= diff;
2071	}
2072	}
2073
2074	/* Basically same logic as above, except now for actual apply. */
2075	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2076	((op->move_type & tmp->move_on) &&
2077	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {
2078
2079	move_apply(tmp, op, originator);
2080	if (was_destroyed (op, tag))
2081	return 1;
2082
2083	/* what the person/creature stepped onto has moved the object
2084	* someplace new. Don't process any further - if we did,
2085	* have a feeling strange problems would result.
2086	*/
2087	if (op->map != m || op->x != x || op->y != y) return 0;
2088	}
2089	}
2090	return 0;	1737	return 0;
		1738
		1739	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1740	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		1741	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		1742
		1743	/* if nothing on this space will slow op down or be applied,
		1744	* no need to do checking below. have to make sure move_type
		1745	* is set, as lots of objects don't have it set - we treat that
		1746	* as walking.
		1747	*/
		1748	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		1749	return 0;
		1750
		1751	/* This is basically inverse logic of that below - basically,
		1752	* if the object can avoid the move on or slow move, they do so,
		1753	* but can't do it if the alternate movement they are using is
		1754	* blocked. Logic on this seems confusing, but does seem correct.
		1755	*/
		1756	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		1757	return 0;
		1758
		1759	/* The objects have to be checked from top to bottom.
		1760	* Hence, we first go to the top:
		1761	*/
		1762
		1763	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above)
		1764	{
		1765	/* Trim the search when we find the first other spell effect
		1766	* this helps performance so that if a space has 50 spell objects,
		1767	* we don't need to check all of them.
		1768	*/
		1769	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1770	break;
		1771	}
		1772
		1773	for (; tmp; tmp = tmp->below)
		1774	{
		1775	if (tmp == op)
		1776	continue; /* Can't apply yourself */
		1777
		1778	/* Check to see if one of the movement types should be slowed down.
		1779	* Second check makes sure that the movement types not being slowed
		1780	* (~slow_move) is not blocked on this space - just because the
		1781	* space doesn't slow down swimming (for example), if you can't actually
		1782	* swim on that space, can't use it to avoid the penalty.
		1783	*/
		1784	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1785	{
		1786	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		1787	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1788	{
		1789
		1790	float
		1791	diff = tmp->move_slow_penalty * FABS (op->speed);
		1792
		1793	if (op->type == PLAYER)
		1794	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		1795	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		1796	diff /= 4.0;
		1797
		1798	op->speed_left -= diff;
		1799	}
		1800	}
		1801
		1802	/* Basically same logic as above, except now for actual apply. */
		1803	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		1804	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		1805	{
		1806	move_apply (tmp, op, originator);
		1807
		1808	if (op->destroyed ())
		1809	return 1;
		1810
		1811	/* what the person/creature stepped onto has moved the object
		1812	* someplace new. Don't process any further - if we did,
		1813	* have a feeling strange problems would result.
		1814	*/
		1815	if (op->map != m || op->x != x || op->y != y)
		1816	return 0;
		1817	}
		1818	}
		1819
		1820	return 0;
2091	}	1821	}
2092		1822
2093	/*	1823	/*
2094	* present_arch(arch, map, x, y) searches for any objects with	1824	* present_arch(arch, map, x, y) searches for any objects with
2095	* a matching archetype at the given map and coordinates.	1825	* a matching archetype at the given map and coordinates.
2096	* The first matching object is returned, or NULL if none.	1826	* The first matching object is returned, or NULL if none.
2097	*/	1827	*/
2098		1828	object *
2099	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1829	present_arch (const archetype *at, maptile *m, int x, int y)
2100	object *tmp;	1830	{
2101	if(m==NULL || out_of_map(m,x,y)) {	1831	if (m == NULL || out_of_map (m, x, y))
		1832	{
2102	LOG(llevError,"Present_arch called outside map.\n");	1833	LOG (llevError, "Present_arch called outside map.\n");
2103	return NULL;	1834	return NULL;
2104	}	1835	}
		1836
2105	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1837	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2106	if(tmp->arch == at)	1838	if (tmp->arch == at)
2107	return tmp;	1839	return tmp;
		1840
2108	return NULL;	1841	return NULL;
2109	}	1842	}
2110		1843
2111	/*	1844	/*
2112	* present(type, map, x, y) searches for any objects with	1845	* present(type, map, x, y) searches for any objects with
2113	* a matching type variable at the given map and coordinates.	1846	* a matching type variable at the given map and coordinates.
2114	* The first matching object is returned, or NULL if none.	1847	* The first matching object is returned, or NULL if none.
2115	*/	1848	*/
2116		1849	object *
2117	object *present(unsigned char type,mapstruct *m, int x,int y) {	1850	present (unsigned char type, maptile *m, int x, int y)
2118	object *tmp;	1851	{
2119	if(out_of_map(m,x,y)) {	1852	if (out_of_map (m, x, y))
		1853	{
2120	LOG(llevError,"Present called outside map.\n");	1854	LOG (llevError, "Present called outside map.\n");
2121	return NULL;	1855	return NULL;
2122	}	1856	}
		1857
2123	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1858	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2124	if(tmp->type==type)	1859	if (tmp->type == type)
2125	return tmp;	1860	return tmp;
		1861
2126	return NULL;	1862	return NULL;
2127	}	1863	}
2128		1864
2129	/*	1865	/*
2130	* present_in_ob(type, object) searches for any objects with	1866	* present_in_ob(type, object) searches for any objects with
2131	* a matching type variable in the inventory of the given object.	1867	* a matching type variable in the inventory of the given object.
2132	* The first matching object is returned, or NULL if none.	1868	* The first matching object is returned, or NULL if none.
2133	*/	1869	*/
2134		1870	object *
2135	object *present_in_ob(unsigned char type, const object *op) {	1871	present_in_ob (unsigned char type, const object *op)
2136	object *tmp;	1872	{
2137	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1873	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2138	if(tmp->type==type)	1874	if (tmp->type == type)
2139	return tmp;	1875	return tmp;
		1876
2140	return NULL;	1877	return NULL;
2141	}	1878	}
2142		1879
2143	/*	1880	/*
2144	* present_in_ob (type, str, object) searches for any objects with	1881	* present_in_ob (type, str, object) searches for any objects with
…		…
2152	* str is the string to match against. Note that we match against	1889	* str is the string to match against. Note that we match against
2153	* the object name, not the archetype name. this is so that the	1890	* the object name, not the archetype name. this is so that the
2154	* spell code can use one object type (force), but change it's name	1891	* spell code can use one object type (force), but change it's name
2155	* to be unique.	1892	* to be unique.
2156	*/	1893	*/
2157		1894	object *
2158	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1895	present_in_ob_by_name (int type, const char *str, const object *op)
2159	object *tmp;	1896	{
2160
2161	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1897	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2162	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1898	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2163	return tmp;	1899	return tmp;
2164	}	1900
2165	return NULL;	1901	return 0;
2166	}	1902	}
2167		1903
2168	/*	1904	/*
2169	* present_arch_in_ob(archetype, object) searches for any objects with	1905	* present_arch_in_ob(archetype, object) searches for any objects with
2170	* a matching archetype in the inventory of the given object.	1906	* a matching archetype in the inventory of the given object.
2171	* The first matching object is returned, or NULL if none.	1907	* The first matching object is returned, or NULL if none.
2172	*/	1908	*/
2173		1909	object *
2174	object *present_arch_in_ob(const archetype *at, const object *op) {	1910	present_arch_in_ob (const archetype *at, const object *op)
2175	object *tmp;	1911	{
2176	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1912	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2177	if( tmp->arch == at)	1913	if (tmp->arch == at)
2178	return tmp;	1914	return tmp;
		1915
2179	return NULL;	1916	return NULL;
2180	}	1917	}
2181		1918
2182	/*	1919	/*
2183	* activate recursively a flag on an object inventory	1920	* activate recursively a flag on an object inventory
2184	*/	1921	*/
		1922	void
2185	void flag_inv(object*op, int flag){	1923	flag_inv (object *op, int flag)
2186	object *tmp;	1924	{
2187	if(op->inv)	1925	if (op->inv)
2188	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1926	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1927	{
2189	SET_FLAG(tmp, flag);	1928	SET_FLAG (tmp, flag);
2190	flag_inv(tmp,flag);	1929	flag_inv (tmp, flag);
2191	}	1930	}
		1931	}
		1932
2192	}/*	1933	/*
2193	* desactivate recursively a flag on an object inventory	1934	* deactivate recursively a flag on an object inventory
2194	*/	1935	*/
		1936	void
2195	void unflag_inv(object*op, int flag){	1937	unflag_inv (object *op, int flag)
2196	object *tmp;	1938	{
2197	if(op->inv)	1939	if (op->inv)
2198	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1940	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1941	{
2199	CLEAR_FLAG(tmp, flag);	1942	CLEAR_FLAG (tmp, flag);
2200	unflag_inv(tmp,flag);	1943	unflag_inv (tmp, flag);
2201	}	1944	}
2202	}	1945	}
2203		1946
2204	/*	1947	/*
2205	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1948	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2206	* all it's inventory (recursively).	1949	* all it's inventory (recursively).
2207	* If checksums are used, a player will get set_cheat called for	1950	* If checksums are used, a player will get set_cheat called for
2208	* him/her-self and all object carried by a call to this function.	1951	* him/her-self and all object carried by a call to this function.
2209	*/	1952	*/
2210		1953	void
2211	void set_cheat(object *op) {	1954	set_cheat (object *op)
		1955	{
2212	SET_FLAG(op, FLAG_WAS_WIZ);	1956	SET_FLAG (op, FLAG_WAS_WIZ);
2213	flag_inv(op, FLAG_WAS_WIZ);	1957	flag_inv (op, FLAG_WAS_WIZ);
2214	}	1958	}
2215		1959
2216	/*	1960	/*
2217	* find_free_spot(object, map, x, y, start, stop) will search for	1961	* find_free_spot(object, map, x, y, start, stop) will search for
2218	* a spot at the given map and coordinates which will be able to contain	1962	* a spot at the given map and coordinates which will be able to contain
…		…
2232	* because arch_blocked (now ob_blocked) needs to know the movement type	1976	* because arch_blocked (now ob_blocked) needs to know the movement type
2233	* to know if the space in question will block the object. We can't use	1977	* to know if the space in question will block the object. We can't use
2234	* the archetype because that isn't correct if the monster has been	1978	* the archetype because that isn't correct if the monster has been
2235	* customized, changed states, etc.	1979	* customized, changed states, etc.
2236	*/	1980	*/
2237		1981	int
2238	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	1982	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		1983	{
2239	int i,index=0, flag;	1984	int index = 0, flag;
2240	static int altern[SIZEOFFREE];	1985	int altern[SIZEOFFREE];
2241		1986
2242	for(i=start;i<stop;i++) {	1987	for (int i = start; i < stop; i++)
		1988	{
2243	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	1989	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2244	if(!flag)	1990	if (!flag)
2245	altern[index++]=i;	1991	altern [index++] = i;
2246		1992
2247	/* Basically, if we find a wall on a space, we cut down the search size.	1993	/* Basically, if we find a wall on a space, we cut down the search size.
2248	* In this way, we won't return spaces that are on another side of a wall.	1994	* In this way, we won't return spaces that are on another side of a wall.
2249	* This mostly work, but it cuts down the search size in all directions -	1995	* This mostly work, but it cuts down the search size in all directions -
2250	* if the space being examined only has a wall to the north and empty	1996	* if the space being examined only has a wall to the north and empty
2251	* spaces in all the other directions, this will reduce the search space	1997	* spaces in all the other directions, this will reduce the search space
2252	* to only the spaces immediately surrounding the target area, and	1998	* to only the spaces immediately surrounding the target area, and
2253	* won't look 2 spaces south of the target space.	1999	* won't look 2 spaces south of the target space.
2254	*/	2000	*/
2255	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2001	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2256	stop=maxfree[i];	2002	stop = maxfree[i];
2257	}	2003	}
2258	if(!index) return -1;	2004
		2005	if (!index)
		2006	return -1;
		2007
2259	return altern[RANDOM()%index];	2008	return altern[RANDOM () % index];
2260	}	2009	}
2261		2010
2262	/*	2011	/*
2263	* find_first_free_spot(archetype, mapstruct, x, y) works like	2012	* find_first_free_spot(archetype, maptile, x, y) works like
2264	* find_free_spot(), but it will search max number of squares.	2013	* find_free_spot(), but it will search max number of squares.
2265	* But it will return the first available spot, not a random choice.	2014	* But it will return the first available spot, not a random choice.
2266	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2015	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2267	*/	2016	*/
2268		2017	int
2269	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2018	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2270	int i;	2019	{
2271	for(i=0;i<SIZEOFFREE;i++) {	2020	for (int i = 0; i < SIZEOFFREE; i++)
2272	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2021	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2273	return i;	2022	return i;
2274	}	2023
2275	return -1;	2024	return -1;
2276	}	2025	}
2277		2026
2278	/*	2027	/*
2279	* The function permute(arr, begin, end) randomly reorders the array	2028	* The function permute(arr, begin, end) randomly reorders the array
2280	* arr[begin..end-1].	2029	* arr[begin..end-1].
		2030	* now uses a fisher-yates shuffle, old permute was broken
2281	*/	2031	*/
		2032	static void
2282	static void permute(int *arr, int begin, int end)	2033	permute (int *arr, int begin, int end)
2283	{	2034	{
2284	int i, j, tmp, len;	2035	arr += begin;
		2036	end -= begin;
2285		2037
2286	len = end-begin;	2038	while (--end)
2287	for(i = begin; i < end; i++)	2039	swap (arr [end], arr [RANDOM () % (end + 1)]);
2288	{
2289	j = begin+RANDOM()%len;
2290
2291	tmp = arr[i];
2292	arr[i] = arr[j];
2293	arr[j] = tmp;
2294	}
2295	}	2040	}
2296		2041
2297	/* new function to make monster searching more efficient, and effective!	2042	/* new function to make monster searching more efficient, and effective!
2298	* This basically returns a randomized array (in the passed pointer) of	2043	* This basically returns a randomized array (in the passed pointer) of
2299	* the spaces to find monsters. In this way, it won't always look for	2044	* the spaces to find monsters. In this way, it won't always look for
2300	* monsters to the north first. However, the size of the array passed	2045	* monsters to the north first. However, the size of the array passed
2301	* covers all the spaces, so within that size, all the spaces within	2046	* covers all the spaces, so within that size, all the spaces within
2302	* the 3x3 area will be searched, just not in a predictable order.	2047	* the 3x3 area will be searched, just not in a predictable order.
2303	*/	2048	*/
		2049	void
2304	void get_search_arr(int *search_arr)	2050	get_search_arr (int *search_arr)
2305	{	2051	{
2306	int i;	2052	int i;
2307		2053
2308	for(i = 0; i < SIZEOFFREE; i++)	2054	for (i = 0; i < SIZEOFFREE; i++)
2309	{
2310	search_arr[i] = i;	2055	search_arr[i] = i;
2311	}
2312		2056
2313	permute(search_arr, 1, SIZEOFFREE1+1);	2057	permute (search_arr, 1, SIZEOFFREE1 + 1);
2314	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2058	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2315	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2059	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2316	}	2060	}
2317		2061
2318	/*	2062	/*
2319	* find_dir(map, x, y, exclude) will search some close squares in the	2063	* find_dir(map, x, y, exclude) will search some close squares in the
2320	* given map at the given coordinates for live objects.	2064	* given map at the given coordinates for live objects.
…		…
2325	* Perhaps incorrectly, but I'm making the assumption that exclude	2069	* Perhaps incorrectly, but I'm making the assumption that exclude
2326	* is actually want is going to try and move there. We need this info	2070	* is actually want is going to try and move there. We need this info
2327	* because we have to know what movement the thing looking to move	2071	* because we have to know what movement the thing looking to move
2328	* there is capable of.	2072	* there is capable of.
2329	*/	2073	*/
2330		2074	int
2331	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2075	find_dir (maptile *m, int x, int y, object *exclude)
		2076	{
2332	int i,max=SIZEOFFREE, mflags;	2077	int i, max = SIZEOFFREE, mflags;
		2078
2333	sint16 nx, ny;	2079	sint16 nx, ny;
2334	object *tmp;	2080	object *tmp;
2335	mapstruct *mp;	2081	maptile *mp;
		2082
2336	MoveType blocked, move_type;	2083	MoveType blocked, move_type;
2337		2084
2338	if (exclude && exclude->head) {	2085	if (exclude && exclude->head)
		2086	{
2339	exclude = exclude->head;	2087	exclude = exclude->head;
2340	move_type = exclude->move_type;	2088	move_type = exclude->move_type;
2341	} else {	2089	}
		2090	else
		2091	{
2342	/* If we don't have anything, presume it can use all movement types. */	2092	/* If we don't have anything, presume it can use all movement types. */
2343	move_type=MOVE_ALL;	2093	move_type = MOVE_ALL;
		2094	}
		2095
		2096	for (i = 1; i < max; i++)
2344	}	2097	{
2345		2098	mp = m;
2346	for(i=1;i<max;i++) {
2347	mp = m;
2348	nx = x + freearr_x[i];	2099	nx = x + freearr_x[i];
2349	ny = y + freearr_y[i];	2100	ny = y + freearr_y[i];
2350		2101
2351	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2102	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2103
2352	if (mflags & P_OUT_OF_MAP) {	2104	if (mflags & P_OUT_OF_MAP)
2353	max = maxfree[i];	2105	max = maxfree[i];
2354	} else {	2106	else
2355	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2107	{
		2108	mapspace &ms = mp->at (nx, ny);
2356		2109
		2110	blocked = ms.move_block;
		2111
2357	if ((move_type & blocked) == move_type) {	2112	if ((move_type & blocked) == move_type)
2358	max=maxfree[i];	2113	max = maxfree[i];
2359	} else if (mflags & P_IS_ALIVE) {	2114	else if (mflags & P_IS_ALIVE)
2360	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2115	{
2361	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2116	for (tmp = ms.bot; tmp; tmp = tmp->above)
		2117	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2362	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2118	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2363	break;	2119	break;
2364	}	2120
2365	}	2121	if (tmp)
2366	if(tmp) {
2367	return freedir[i];	2122	return freedir[i];
2368	}	2123	}
		2124	}
2369	}	2125	}
2370	}	2126
2371	}
2372	return 0;	2127	return 0;
2373	}	2128	}
2374		2129
2375	/*	2130	/*
2376	* distance(object 1, object 2) will return the square of the	2131	* distance(object 1, object 2) will return the square of the
2377	* distance between the two given objects.	2132	* distance between the two given objects.
2378	*/	2133	*/
2379		2134	int
2380	int distance(const object *ob1, const object *ob2) {	2135	distance (const object *ob1, const object *ob2)
2381	int i;	2136	{
2382	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2137	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2383	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2384	return i;
2385	}	2138	}
2386		2139
2387	/*	2140	/*
2388	* find_dir_2(delta-x,delta-y) will return a direction in which	2141	* find_dir_2(delta-x,delta-y) will return a direction in which
2389	* an object which has subtracted the x and y coordinates of another	2142	* an object which has subtracted the x and y coordinates of another
2390	* object, needs to travel toward it.	2143	* object, needs to travel toward it.
2391	*/	2144	*/
2392		2145	int
2393	int find_dir_2(int x, int y) {	2146	find_dir_2 (int x, int y)
		2147	{
2394	int q;	2148	int q;
2395		2149
2396	if(y)	2150	if (y)
2397	q=x*100/y;	2151	q = x * 100 / y;
2398	else if (x)	2152	else if (x)
2399	q= -300*x;	2153	q = -300 * x;
2400	else	2154	else
2401	return 0;	2155	return 0;
2402		2156
2403	if(y>0) {	2157	if (y > 0)
		2158	{
2404	if(q < -242)	2159	if (q < -242)
2405	return 3 ;	2160	return 3;
2406	if (q < -41)	2161	if (q < -41)
2407	return 2 ;	2162	return 2;
2408	if (q < 41)	2163	if (q < 41)
2409	return 1 ;	2164	return 1;
2410	if (q < 242)	2165	if (q < 242)
2411	return 8 ;	2166	return 8;
2412	return 7 ;	2167	return 7;
2413	}	2168	}
2414		2169
2415	if (q < -242)	2170	if (q < -242)
2416	return 7 ;	2171	return 7;
2417	if (q < -41)	2172	if (q < -41)
2418	return 6 ;	2173	return 6;
2419	if (q < 41)	2174	if (q < 41)
2420	return 5 ;	2175	return 5;
2421	if (q < 242)	2176	if (q < 242)
2422	return 4 ;	2177	return 4;
2423		2178
2424	return 3 ;	2179	return 3;
2425	}	2180	}
2426		2181
2427	/*	2182	/*
2428	* absdir(int): Returns a number between 1 and 8, which represent	2183	* absdir(int): Returns a number between 1 and 8, which represent
2429	* the "absolute" direction of a number (it actually takes care of	2184	* the "absolute" direction of a number (it actually takes care of
2430	* "overflow" in previous calculations of a direction).	2185	* "overflow" in previous calculations of a direction).
2431	*/	2186	*/
2432		2187
		2188	int
2433	int absdir(int d) {	2189	absdir (int d)
2434	while(d<1) d+=8;	2190	{
2435	while(d>8) d-=8;	2191	while (d < 1)
		2192	d += 8;
		2193
		2194	while (d > 8)
		2195	d -= 8;
		2196
2436	return d;	2197	return d;
2437	}	2198	}
2438		2199
2439	/*	2200	/*
2440	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2201	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2441	* between two directions (which are expected to be absolute (see absdir())	2202	* between two directions (which are expected to be absolute (see absdir())
2442	*/	2203	*/
2443		2204
		2205	int
2444	int dirdiff(int dir1, int dir2) {	2206	dirdiff (int dir1, int dir2)
		2207	{
2445	int d;	2208	int d;
		2209
2446	d = abs(dir1 - dir2);	2210	d = abs (dir1 - dir2);
2447	if(d>4)	2211	if (d > 4)
2448	d = 8 - d;	2212	d = 8 - d;
		2213
2449	return d;	2214	return d;
2450	}	2215	}
2451		2216
2452	/* peterm:	2217	/* peterm:
2453	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2218	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2456	* This basically means that if direction is 15, then it could either go	2221	* This basically means that if direction is 15, then it could either go
2457	* direction 4, 14, or 16 to get back to where we are.	2222	* direction 4, 14, or 16 to get back to where we are.
2458	* Moved from spell_util.c to object.c with the other related direction	2223	* Moved from spell_util.c to object.c with the other related direction
2459	* functions.	2224	* functions.
2460	*/	2225	*/
2461
2462	int reduction_dir[SIZEOFFREE][3] = {	2226	int reduction_dir[SIZEOFFREE][3] = {
2463	{0,0,0}, /* 0 */	2227	{0, 0, 0}, /* 0 */
2464	{0,0,0}, /* 1 */	2228	{0, 0, 0}, /* 1 */
2465	{0,0,0}, /* 2 */	2229	{0, 0, 0}, /* 2 */
2466	{0,0,0}, /* 3 */	2230	{0, 0, 0}, /* 3 */
2467	{0,0,0}, /* 4 */	2231	{0, 0, 0}, /* 4 */
2468	{0,0,0}, /* 5 */	2232	{0, 0, 0}, /* 5 */
2469	{0,0,0}, /* 6 */	2233	{0, 0, 0}, /* 6 */
2470	{0,0,0}, /* 7 */	2234	{0, 0, 0}, /* 7 */
2471	{0,0,0}, /* 8 */	2235	{0, 0, 0}, /* 8 */
2472	{8,1,2}, /* 9 */	2236	{8, 1, 2}, /* 9 */
2473	{1,2,-1}, /* 10 */	2237	{1, 2, -1}, /* 10 */
2474	{2,10,12}, /* 11 */	2238	{2, 10, 12}, /* 11 */
2475	{2,3,-1}, /* 12 */	2239	{2, 3, -1}, /* 12 */
2476	{2,3,4}, /* 13 */	2240	{2, 3, 4}, /* 13 */
2477	{3,4,-1}, /* 14 */	2241	{3, 4, -1}, /* 14 */
2478	{4,14,16}, /* 15 */	2242	{4, 14, 16}, /* 15 */
2479	{5,4,-1}, /* 16 */	2243	{5, 4, -1}, /* 16 */
2480	{4,5,6}, /* 17 */	2244	{4, 5, 6}, /* 17 */
2481	{6,5,-1}, /* 18 */	2245	{6, 5, -1}, /* 18 */
2482	{6,20,18}, /* 19 */	2246	{6, 20, 18}, /* 19 */
2483	{7,6,-1}, /* 20 */	2247	{7, 6, -1}, /* 20 */
2484	{6,7,8}, /* 21 */	2248	{6, 7, 8}, /* 21 */
2485	{7,8,-1}, /* 22 */	2249	{7, 8, -1}, /* 22 */
2486	{8,22,24}, /* 23 */	2250	{8, 22, 24}, /* 23 */
2487	{8,1,-1}, /* 24 */	2251	{8, 1, -1}, /* 24 */
2488	{24,9,10}, /* 25 */	2252	{24, 9, 10}, /* 25 */
2489	{9,10,-1}, /* 26 */	2253	{9, 10, -1}, /* 26 */
2490	{10,11,-1}, /* 27 */	2254	{10, 11, -1}, /* 27 */
2491	{27,11,29}, /* 28 */	2255	{27, 11, 29}, /* 28 */
2492	{11,12,-1}, /* 29 */	2256	{11, 12, -1}, /* 29 */
2493	{12,13,-1}, /* 30 */	2257	{12, 13, -1}, /* 30 */
2494	{12,13,14}, /* 31 */	2258	{12, 13, 14}, /* 31 */
2495	{13,14,-1}, /* 32 */	2259	{13, 14, -1}, /* 32 */
2496	{14,15,-1}, /* 33 */	2260	{14, 15, -1}, /* 33 */
2497	{33,15,35}, /* 34 */	2261	{33, 15, 35}, /* 34 */
2498	{16,15,-1}, /* 35 */	2262	{16, 15, -1}, /* 35 */
2499	{17,16,-1}, /* 36 */	2263	{17, 16, -1}, /* 36 */
2500	{18,17,16}, /* 37 */	2264	{18, 17, 16}, /* 37 */
2501	{18,17,-1}, /* 38 */	2265	{18, 17, -1}, /* 38 */
2502	{18,19,-1}, /* 39 */	2266	{18, 19, -1}, /* 39 */
2503	{41,19,39}, /* 40 */	2267	{41, 19, 39}, /* 40 */
2504	{19,20,-1}, /* 41 */	2268	{19, 20, -1}, /* 41 */
2505	{20,21,-1}, /* 42 */	2269	{20, 21, -1}, /* 42 */
2506	{20,21,22}, /* 43 */	2270	{20, 21, 22}, /* 43 */
2507	{21,22,-1}, /* 44 */	2271	{21, 22, -1}, /* 44 */
2508	{23,22,-1}, /* 45 */	2272	{23, 22, -1}, /* 45 */
2509	{45,47,23}, /* 46 */	2273	{45, 47, 23}, /* 46 */
2510	{23,24,-1}, /* 47 */	2274	{23, 24, -1}, /* 47 */
2511	{24,9,-1}}; /* 48 */	2275	{24, 9, -1}
		2276	}; /* 48 */
2512		2277
2513	/* Recursive routine to step back and see if we can	2278	/* Recursive routine to step back and see if we can
2514	* find a path to that monster that we found. If not,	2279	* find a path to that monster that we found. If not,
2515	* we don't bother going toward it. Returns 1 if we	2280	* we don't bother going toward it. Returns 1 if we
2516	* can see a direct way to get it	2281	* can see a direct way to get it
2517	* Modified to be map tile aware -.MSW	2282	* Modified to be map tile aware -.MSW
2518	*/	2283	*/
2519		2284	int
2520
2521	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2285	can_see_monsterP (maptile *m, int x, int y, int dir)
		2286	{
2522	sint16 dx, dy;	2287	sint16 dx, dy;
2523	int mflags;	2288	int mflags;
2524		2289
		2290	if (dir < 0)
2525	if(dir<0) return 0; /* exit condition: invalid direction */	2291	return 0; /* exit condition: invalid direction */
2526		2292
2527	dx = x + freearr_x[dir];	2293	dx = x + freearr_x[dir];
2528	dy = y + freearr_y[dir];	2294	dy = y + freearr_y[dir];
2529		2295
2530	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2296	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2531		2297
2532	/* This functional arguably was incorrect before - it was	2298	/* This functional arguably was incorrect before - it was
2533	* checking for P_WALL - that was basically seeing if	2299	* checking for P_WALL - that was basically seeing if
2534	* we could move to the monster - this is being more	2300	* we could move to the monster - this is being more
2535	* literal on if we can see it. To know if we can actually	2301	* literal on if we can see it. To know if we can actually
2536	* move to the monster, we'd need the monster passed in or	2302	* move to the monster, we'd need the monster passed in or
2537	* at least its move type.	2303	* at least its move type.
2538	*/	2304	*/
2539	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2305	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2306	return 0;
2540		2307
2541	/* yes, can see. */	2308	/* yes, can see. */
2542	if(dir < 9) return 1;	2309	if (dir < 9)
		2310	return 1;
		2311
2543	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2312	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2544	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2313	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2545	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2314	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2546	}	2315	}
2547		2316
2548
2549
2550	/*	2317	/*
2551	* can_pick(picker, item): finds out if an object is possible to be	2318	* can_pick(picker, item): finds out if an object is possible to be
2552	* picked up by the picker. Returnes 1 if it can be	2319	* picked up by the picker. Returnes 1 if it can be
2553	* picked up, otherwise 0.	2320	* picked up, otherwise 0.
2554	*	2321	*
…		…
2556	* core dumps if they do.	2323	* core dumps if they do.
2557	*	2324	*
2558	* Add a check so we can't pick up invisible objects (0.93.8)	2325	* Add a check so we can't pick up invisible objects (0.93.8)
2559	*/	2326	*/
2560		2327
		2328	int
2561	int can_pick(const object *who, const object *item) {	2329	can_pick (const object *who, const object *item)
		2330	{
2562	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2331	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2563	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2332	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2564	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2333	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2565	(who->type==PLAYER||item->weight<who->weight/3));
2566	}	2334	}
2567
2568		2335
2569	/*	2336	/*
2570	* create clone from object to another	2337	* create clone from object to another
2571	*/	2338	*/
		2339	object *
2572	object *object_create_clone (object *asrc) {	2340	object_create_clone (object *asrc)
		2341	{
2573	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2342	object *dst = 0, *tmp, *src, *part, *prev, *item;
2574		2343
2575	if(!asrc) return NULL;	2344	if (!asrc)
		2345	return 0;
		2346
2576	src = asrc;	2347	src = asrc;
2577	if(src->head)	2348	if (src->head)
2578	src = src->head;	2349	src = src->head;
2579		2350
2580	prev = NULL;	2351	prev = 0;
2581	for(part = src; part; part = part->more) {	2352	for (part = src; part; part = part->more)
2582	tmp = get_object();	2353	{
2583	copy_object(part,tmp);	2354	tmp = part->clone ();
2584	tmp->x -= src->x;	2355	tmp->x -= src->x;
2585	tmp->y -= src->y;	2356	tmp->y -= src->y;
		2357
2586	if(!part->head) {	2358	if (!part->head)
		2359	{
2587	dst = tmp;	2360	dst = tmp;
2588	tmp->head = NULL;
2589	} else {
2590	tmp->head = dst;	2361	tmp->head = 0;
2591	}	2362	}
		2363	else
		2364	tmp->head = dst;
		2365
2592	tmp->more = NULL;	2366	tmp->more = 0;
		2367
2593	if(prev)	2368	if (prev)
2594	prev->more = tmp;	2369	prev->more = tmp;
		2370
2595	prev = tmp;	2371	prev = tmp;
2596	}	2372	}
2597	/*** copy inventory ***/	2373
2598	for(item = src->inv; item; item = item->below) {	2374	for (item = src->inv; item; item = item->below)
2599	(void) insert_ob_in_ob(object_create_clone(item),dst);	2375	insert_ob_in_ob (object_create_clone (item), dst);
2600	}
2601		2376
2602	return dst;	2377	return dst;
2603	}
2604
2605	/* return true if the object was destroyed, 0 otherwise */
2606	int was_destroyed (const object *op, tag_t old_tag)
2607	{
2608	/* checking for FLAG_FREED isn't necessary, but makes this function more
2609	* robust */
2610	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2611	}	2378	}
2612		2379
2613	/* GROS - Creates an object using a string representing its content. */	2380	/* GROS - Creates an object using a string representing its content. */
2614	/* Basically, we save the content of the string to a temp file, then call */	2381	/* Basically, we save the content of the string to a temp file, then call */
2615	/* load_object on it. I admit it is a highly inefficient way to make things, */	2382	/* load_object on it. I admit it is a highly inefficient way to make things, */
2616	/* but it was simple to make and allows reusing the load_object function. */	2383	/* but it was simple to make and allows reusing the load_object function. */
2617	/* Remember not to use load_object_str in a time-critical situation. */	2384	/* Remember not to use load_object_str in a time-critical situation. */
2618	/* Also remember that multiparts objects are not supported for now. */	2385	/* Also remember that multiparts objects are not supported for now. */
2619		2386	object *
2620	object* load_object_str(const char *obstr)	2387	load_object_str (const char *obstr)
2621	{	2388	{
2622	object *op;	2389	object *op;
2623	FILE *tempfile;
2624	char filename[MAX_BUF];	2390	char filename[MAX_BUF];
		2391
2625	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2392	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
		2393
2626	tempfile=fopen(filename,"w");	2394	FILE *tempfile = fopen (filename, "w");
		2395
2627	if (tempfile == NULL)	2396	if (tempfile == NULL)
2628	{	2397	{
2629	LOG(llevError,"Error - Unable to access load object temp file\n");	2398	LOG (llevError, "Error - Unable to access load object temp file\n");
2630	return NULL;	2399	return NULL;
2631	};	2400	}
		2401
2632	fprintf(tempfile,obstr);	2402	fprintf (tempfile, obstr);
2633	fclose(tempfile);	2403	fclose (tempfile);
2634		2404
2635	op=get_object();	2405	op = object::create ();
2636		2406
2637	tempfile=fopen(filename,"r");
2638	if (tempfile == NULL)
2639	{
2640	LOG(llevError,"Error - Unable to read object temp file\n");
2641	return NULL;
2642	};
2643	object_thawer thawer (tempfile);	2407	object_thawer thawer (filename);
		2408
		2409	if (thawer)
2644	load_object(thawer,op,LO_NEWFILE,0);	2410	load_object (thawer, op, 0);
		2411
2645	LOG(llevDebug," load str completed, object=%s\n",op->name);	2412	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2646	CLEAR_FLAG(op,FLAG_REMOVED);	2413	CLEAR_FLAG (op, FLAG_REMOVED);
2647	fclose(tempfile);	2414
2648	return op;	2415	return op;
2649	}	2416	}
2650		2417
2651	/* This returns the first object in who's inventory that	2418	/* This returns the first object in who's inventory that
2652	* has the same type and subtype match.	2419	* has the same type and subtype match.
2653	* returns NULL if no match.	2420	* returns NULL if no match.
2654	*/	2421	*/
		2422	object *
2655	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2423	find_obj_by_type_subtype (const object *who, int type, int subtype)
2656	{	2424	{
2657	object *tmp;
2658
2659	for (tmp=who->inv; tmp; tmp=tmp->below)	2425	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2660	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2426	if (tmp->type == type && tmp->subtype == subtype)
		2427	return tmp;
2661		2428
2662	return NULL;	2429	return 0;
2663	}	2430	}
2664		2431
2665	/* If ob has a field named key, return the link from the list,	2432	/* If ob has a field named key, return the link from the list,
2666	* otherwise return NULL.	2433	* otherwise return NULL.
2667	*	2434	*
2668	* key must be a passed in shared string - otherwise, this won't	2435	* key must be a passed in shared string - otherwise, this won't
2669	* do the desired thing.	2436	* do the desired thing.
2670	*/	2437	*/
		2438	key_value *
2671	key_value * get_ob_key_link(const object * ob, const char * key) {	2439	get_ob_key_link (const object *ob, const char *key)
2672	key_value * link;	2440	{
2673
2674	for (link = ob->key_values; link != NULL; link = link->next) {	2441	for (key_value *link = ob->key_values; link; link = link->next)
2675	if (link->key == key) {	2442	if (link->key == key)
2676	return link;	2443	return link;
2677	}	2444
2678	}	2445	return 0;
2679		2446	}
2680	return NULL;
2681	}
2682		2447
2683	/*	2448	/*
2684	* Returns the value of op has an extra_field for key, or NULL.	2449	* Returns the value of op has an extra_field for key, or NULL.
2685	*	2450	*
2686	* The argument doesn't need to be a shared string.	2451	* The argument doesn't need to be a shared string.
2687	*	2452	*
2688	* The returned string is shared.	2453	* The returned string is shared.
2689	*/	2454	*/
		2455	const char *
2690	const char * get_ob_key_value(const object * op, const char * const key) {	2456	get_ob_key_value (const object *op, const char *const key)
		2457	{
2691	key_value * link;	2458	key_value *link;
2692	const char * canonical_key;	2459	shstr_cmp canonical_key (key);
		2460
		2461	if (!canonical_key)
2693		2462	{
2694	canonical_key = find_string(key);
2695
2696	if (canonical_key == NULL) {
2697	/* 1. There being a field named key on any object	2463	/* 1. There being a field named key on any object
2698	* implies there'd be a shared string to find.	2464	* implies there'd be a shared string to find.
2699	* 2. Since there isn't, no object has this field.	2465	* 2. Since there isn't, no object has this field.
2700	* 3. Therefore, *this* object doesn't have this field.	2466	* 3. Therefore, *this* object doesn't have this field.
2701	*/	2467	*/
2702	return NULL;	2468	return 0;
2703	}	2469	}
2704		2470
2705	/* This is copied from get_ob_key_link() above -	2471	/* This is copied from get_ob_key_link() above -
2706	* only 4 lines, and saves the function call overhead.	2472	* only 4 lines, and saves the function call overhead.
2707	*/	2473	*/
2708	for (link = op->key_values; link != NULL; link = link->next) {	2474	for (link = op->key_values; link; link = link->next)
2709	if (link->key == canonical_key) {	2475	if (link->key == canonical_key)
2710	return link->value;	2476	return link->value;
2711	}	2477
2712	}	2478	return 0;
2713	return NULL;
2714	}	2479	}
2715		2480
2716		2481
2717	/*	2482	/*
2718	* Updates the canonical_key in op to value.	2483	* Updates the canonical_key in op to value.
…		…
2722	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2487	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2723	* keys.	2488	* keys.
2724	*	2489	*
2725	* Returns TRUE on success.	2490	* Returns TRUE on success.
2726	*/	2491	*/
		2492	int
2727	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2493	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2494	{
2728	key_value * field = NULL, *last=NULL;	2495	key_value *field = NULL, *last = NULL;
2729		2496
2730	for (field=op->key_values; field != NULL; field=field->next) {	2497	for (field = op->key_values; field != NULL; field = field->next)
2731	if (field->key != canonical_key) {
2732	last = field;
2733	continue;
2734	}
2735		2498	{
2736	if (field->value) FREE_AND_CLEAR_STR(field->value);	2499	if (field->key != canonical_key)
2737	if (value)	2500	{
2738	field->value = add_string(value);	2501	last = field;
2739	else {	2502	continue;
		2503	}
		2504
		2505	if (value)
		2506	field->value = value;
		2507	else
		2508	{
2740	/* Basically, if the archetype has this key set,	2509	/* Basically, if the archetype has this key set,
2741	* we need to store the null value so when we save	2510	* we need to store the null value so when we save
2742	* it, we save the empty value so that when we load,	2511	* it, we save the empty value so that when we load,
2743	* we get this value back again.	2512	* we get this value back again.
2744	*/	2513	*/
2745	if (get_ob_key_link(&op->arch->clone, canonical_key))	2514	if (get_ob_key_link (&op->arch->clone, canonical_key))
2746	field->value = NULL;	2515	field->value = 0;
2747	else {	2516	else
2748	/* Delete this link */	2517	{
2749	if (field->key) FREE_AND_CLEAR_STR(field->key);	2518	if (last)
2750	if (field->value) FREE_AND_CLEAR_STR(field->value);	2519	last->next = field->next;
2751	if (last) last->next = field->next;	2520	else
2752	else op->key_values = field->next;	2521	op->key_values = field->next;
2753	free(field);	2522
2754	}	2523	delete field;
2755	}	2524	}
		2525	}
2756	return TRUE;	2526	return TRUE;
2757	}	2527	}
2758	/* IF we get here, key doesn't exist */	2528	/* IF we get here, key doesn't exist */
2759		2529
2760	/* No field, we'll have to add it. */	2530	/* No field, we'll have to add it. */
2761		2531
2762	if (!add_key) {	2532	if (!add_key)
2763	return FALSE;	2533	return FALSE;
2764	}	2534
2765	/* There isn't any good reason to store a null	2535	/* There isn't any good reason to store a null
2766	* value in the key/value list. If the archetype has	2536	* value in the key/value list. If the archetype has
2767	* this key, then we should also have it, so shouldn't	2537	* this key, then we should also have it, so shouldn't
2768	* be here. If user wants to store empty strings,	2538	* be here. If user wants to store empty strings,
2769	* should pass in ""	2539	* should pass in ""
2770	*/	2540	*/
2771	if (value == NULL) return TRUE;	2541	if (value == NULL)
2772
2773	field = (key_value *) malloc(sizeof(key_value));
2774
2775	field->key = add_refcount(canonical_key);
2776	field->value = add_string(value);
2777	/* Usual prepend-addition. */
2778	field->next = op->key_values;
2779	op->key_values = field;
2780
2781	return TRUE;	2542	return TRUE;
		2543
		2544	field = new key_value;
		2545
		2546	field->key = canonical_key;
		2547	field->value = value;
		2548	/* Usual prepend-addition. */
		2549	field->next = op->key_values;
		2550	op->key_values = field;
		2551
		2552	return TRUE;
2782	}	2553	}
2783		2554
2784	/*	2555	/*
2785	* Updates the key in op to value.	2556	* Updates the key in op to value.
2786	*	2557	*
…		…
2788	* and not add new ones.	2559	* and not add new ones.
2789	* In general, should be little reason FALSE is ever passed in for add_key	2560	* In general, should be little reason FALSE is ever passed in for add_key
2790	*	2561	*
2791	* Returns TRUE on success.	2562	* Returns TRUE on success.
2792	*/	2563	*/
		2564	int
2793	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2565	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2794	const char * canonical_key = NULL;	2566	{
2795	int floating_ref = FALSE;	2567	shstr key_ (key);
2796	int ret;	2568
		2569	return set_ob_key_value_s (op, key_, value, add_key);
		2570	}
		2571
		2572	object::depth_iterator::depth_iterator (object *container)
		2573	: iterator_base (container)
		2574	{
		2575	while (item->inv)
		2576	item = item->inv;
		2577	}
		2578
		2579	void
		2580	object::depth_iterator::next ()
		2581	{
		2582	if (item->below)
2797		2583	{
2798	/* HACK This mess is to make sure set_ob_value() passes a shared string	2584	item = item->below;
2799	* to get_ob_key_link(), without leaving a leaked refcount.	2585
2800	*/	2586	while (item->inv)
		2587	item = item->inv;
2801		2588	}
2802	canonical_key = find_string(key);	2589	else
2803	if (canonical_key == NULL) {	2590	item = item->env;
2804	canonical_key = add_string(key);
2805	floating_ref = TRUE;
2806	}
2807
2808	ret = set_ob_key_value_s(op, canonical_key, value, add_key);
2809
2810	if (floating_ref) {
2811	free_string(canonical_key);
2812	}
2813
2814	return ret;
2815	}	2591	}
		2592
		2593	// return a suitable string describing an objetc in enough detail to find it
		2594	const char *
		2595	object::debug_desc (char *info) const
		2596	{
		2597	char info2[256 * 3];
		2598	char *p = info;
		2599
		2600	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2601	count,
		2602	&name,
		2603	title ? " " : "",
		2604	title ? (const char *)title : "");
		2605
		2606	if (env)
		2607	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2608
		2609	if (map)
		2610	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2611
		2612	return info;
		2613	}
		2614
		2615	const char *
		2616	object::debug_desc () const
		2617	{
		2618	static char info[256 * 3];
		2619	return debug_desc (info);
		2620	}
		2621

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