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Comparing deliantra/server/common/object.C (file contents):
Revision 1.1 by elmex, Sun Aug 13 17:16:00 2006 UTC vs.
Revision 1.89 by root, Tue Dec 26 09:52:40 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.1 2006/08/13 17:16:00 elmex Exp $";
4	*/
5
6	/*	1	/*
7	CrossFire, A Multiplayer game for X-windows	2	CrossFire, A Multiplayer game for X-windows
8		3
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	5	Copyright (C) 1992 Frank Tore Johansen
…		…
21		16
22	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software	18	along with this program; if not, write to the Free Software
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25		20
26	The authors can be reached via e-mail at crossfire-devel@real-time.com	21	The authors can be reached via e-mail at <crossfire@schmorp.de>
27	*/	22	*/
28		23
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying	25	sub/add_weight will transcend the environment updating the carrying
31	variable. */	26	variable. */
32	#include <global.h>	27	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	28	#include <stdio.h>
35	#include <sys/types.h>	29	#include <sys/types.h>
36	#include <sys/uio.h>	30	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	31	#include <object.h>
39	#include <funcpoint.h>	32	#include <funcpoint.h>
40	#include <skills.h>
41	#include <loader.h>	33	#include <loader.h>
42	#ifdef MEMORY_DEBUG	34
43	int nroffreeobjects = 0;	35	#include <bitset>
		36
44	int nrofallocobjects = 0;	37	int nrofallocobjects = 0;
45	#undef OBJ_EXPAND	38	static UUID uuid;
46	#define OBJ_EXPAND 1	39	const uint64 UUID_SKIP = 1<<19;
47	#else
48	object objarray[STARTMAX]; /* All objects, allocated this way at first */
49	int nroffreeobjects = STARTMAX; /* How many OBs allocated and free (free) */
50	int nrofallocobjects = STARTMAX; /* How many OBs allocated (free + used) */
51	#endif
52		40
53	object *objects; /* Pointer to the list of used objects */
54	object *free_objects; /* Pointer to the list of unused objects */
55	object *active_objects; /* List of active objects that need to be processed */	41	object *active_objects; /* List of active objects that need to be processed */
56		42
57	void (*object_free_callback)(object *ob);	43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
58
59	short freearr_x[SIZEOFFREE]=
60	{0,0,1,1,1,0,-1,-1,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,-2,-2,-2,-1,
61	0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3,-3,-3,-3,-3,-2,-1};	44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
62	short freearr_y[SIZEOFFREE]=	45	};
63	{0,-1,-1,0,1,1,1,0,-1,-2,-2,-2,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,	46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
64	-3,-3,-3,-3,-2,-1,0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3};	47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
65	int maxfree[SIZEOFFREE]=	48	};
66	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,	49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
67	48,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49};	50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		51	};
68	int freedir[SIZEOFFREE]= {	52	int freedir[SIZEOFFREE] = {
69	0,1,2,3,4,5,6,7,8,1,2,2,2,3,4,4,4,5,6,6,6,7,8,8,8,	53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
70	1,2,2,2,2,2,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,8};	54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		55	};
71		56
		57	static void
		58	write_uuid (void)
		59	{
		60	char filename1[MAX_BUF], filename2[MAX_BUF];
		61
		62	sprintf (filename1, "%s/uuid", settings.localdir);
		63	sprintf (filename2, "%s/uuid~", settings.localdir);
		64
		65	FILE *fp;
		66
		67	if (!(fp = fopen (filename2, "w")))
		68	{
		69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		70	return;
		71	}
		72
		73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		74	fclose (fp);
		75	rename (filename2, filename1);
		76	}
		77
		78	static void
		79	read_uuid (void)
		80	{
		81	char filename[MAX_BUF];
		82
		83	sprintf (filename, "%s/uuid", settings.localdir);
		84
		85	FILE *fp;
		86
		87	if (!(fp = fopen (filename, "r")))
		88	{
		89	if (errno == ENOENT)
		90	{
		91	LOG (llevInfo, "RESET uid to 1\n");
		92	uuid.seq = 0;
		93	write_uuid ();
		94	return;
		95	}
		96
		97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		98	_exit (1);
		99	}
		100
		101	int version;
		102	unsigned long long uid;
		103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		104	{
		105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		106	_exit (1);
		107	}
		108
		109	uuid.seq = uid;
		110	write_uuid ();
		111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		112	fclose (fp);
		113	}
		114
		115	UUID
		116	gen_uuid ()
		117	{
		118	UUID uid;
		119
		120	uid.seq = ++uuid.seq;
		121
		122	if (!(uuid.seq & (UUID_SKIP - 1)))
		123	write_uuid ();
		124
		125	return uid;
		126	}
		127
		128	void
		129	init_uuid ()
		130	{
		131	read_uuid ();
		132	}
72		133
73	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		135	static int
74	static int compare_ob_value_lists_one(const object * wants, const object * has) {	136	compare_ob_value_lists_one (const object *wants, const object *has)
		137	{
75	key_value * wants_field;	138	key_value *wants_field;
76		139
77	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
78	* objects with lists are rare, and lists stay short. If not, use a	141	* objects with lists are rare, and lists stay short. If not, use a
79	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
80	*/	143	*/
81		144
82	/* For each field in wants, */	145	/* For each field in wants, */
83	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	146	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
		147	{
84	key_value * has_field;	148	key_value *has_field;
85		149
86	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
87	has_field = get_ob_key_link(has, wants_field->key);	151	has_field = get_ob_key_link (has, wants_field->key);
		152
		153	if (has_field == NULL)
88		154	{
89	if (has_field == NULL) {
90	/* No field with that name. */	155	/* No field with that name. */
91	return FALSE;	156	return FALSE;
92	}	157	}
93		158
94	/* Found the matching field. */	159	/* Found the matching field. */
95	if (has_field->value != wants_field->value) {	160	if (has_field->value != wants_field->value)
		161	{
96	/* Values don't match, so this half of the comparison is false. */	162	/* Values don't match, so this half of the comparison is false. */
97	return FALSE;	163	return FALSE;
98	}	164	}
99		165
100	/* If we get here, we found a match. Now for the next field in wants. */	166	/* If we get here, we found a match. Now for the next field in wants. */
101	}
102		167	}
		168
103	/* If we get here, every field in wants has a matching field in has. */	169	/* If we get here, every field in wants has a matching field in has. */
104	return TRUE;	170	return TRUE;
105	}	171	}
106		172
107	/* Returns TRUE if ob1 has the same key_values as ob2. */	173	/* Returns TRUE if ob1 has the same key_values as ob2. */
		174	static int
108	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	175	compare_ob_value_lists (const object *ob1, const object *ob2)
		176	{
109	/* However, there may be fields in has which aren't partnered in wants,	177	/* However, there may be fields in has which aren't partnered in wants,
110	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
111	*/	179	*/
112	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
113	}	181	}
114		182
115	/* Function examines the 2 objects given to it, and returns true if	183	/* Function examines the 2 objects given to it, and returns true if
116	* they can be merged together.	184	* they can be merged together.
117	*	185	*
118	* Note that this function appears a lot longer than the macro it	186	* Note that this function appears a lot longer than the macro it
119	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
120	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
121	*	189	*
122	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
123	*	191	*
124	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
125	* check weight	193	* check weight
126	*/	194	*/
127		195
128	int CAN_MERGE(object *ob1, object *ob2) {	196	bool object::can_merge_slow (object *ob1, object *ob2)
129		197	{
130	/* A couple quicksanity checks */	198	/* A couple quicksanity checks */
131	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	199	if (ob1 == ob2
132		200	|| ob1->type != ob2->type
133	if (ob1->speed != ob2->speed) return 0;	201	|| ob1->speed != ob2->speed
134	/* Note sure why the following is the case - either the object has to	202	|| ob1->value != ob2->value
135	* be animated or have a very low speed. Is this an attempted monster	203	|| ob1->name != ob2->name)
136	* check?
137	*/
138	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)
139	return 0;	204	return 0;
140		205
		206	//TODO: this ain't working well, use nicer and correct overflow check
141	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	207	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
142	* value could not be stored in a sint32 (which unfortunately sometimes is	208	* value could not be stored in a sint32 (which unfortunately sometimes is
143	* used to store nrof).	209	* used to store nrof).
144	*/	210	*/
145	if (ob1->nrof+ob2->nrof >= 1UL<<31)	211	if (ob1->nrof + ob2->nrof >= 1UL << 31)
146	return 0;	212	return 0;
147		213
148	/* This is really a spellbook check - really, we should
149	* check all objects in the inventory.
150	*/
151	if (ob1->inv || ob2->inv) {
152	/* if one object has inventory but the other doesn't, not equiv */
153	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) return 0;
154
155	/* Now check to see if the two inventory objects could merge */
156	if (!CAN_MERGE(ob1->inv, ob2->inv)) return 0;
157
158	/* inventory ok - still need to check rest of this object to see
159	* if it is valid.
160	*/
161	}
162
163	/* If the objects have been identified, set the BEEN_APPLIED flag.	214	/* If the objects have been identified, set the BEEN_APPLIED flag.
164	* This is to the comparison of the flags below will be OK. We	215	* This is to the comparison of the flags below will be OK. We
165	* just can't ignore the been applied or identified flags, as they	216	* just can't ignore the been applied or identified flags, as they
166	* are not equal - just if it has been identified, the been_applied	217	* are not equal - just if it has been identified, the been_applied
167	* flags lose any meaning.	218	* flags lose any meaning.
168	*/	219	*/
169	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))	220	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
170	SET_FLAG(ob1, FLAG_BEEN_APPLIED);	221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
171		222
172	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))	223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
173	SET_FLAG(ob2, FLAG_BEEN_APPLIED);	224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
174		225
175		226	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
176	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	227	|| ob1->arch != ob2->arch
177	* being locked in inventory should prevent merging.	228	|| ob1->name != ob2->name
178	* 0x4 in flags3 is CLIENT_SENT	229	|| ob1->title != ob2->title
179	*/	230	|| ob1->msg != ob2->msg
180	if ((ob1->arch != ob2->arch) ||	231	|| ob1->weight != ob2->weight
181	(ob1->flags[0] != ob2->flags[0]) ||
182	(ob1->flags[1] != ob2->flags[1]) ||
183	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||
184	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
185	(ob1->name != ob2->name) ||
186	(ob1->title != ob2->title) ||
187	(ob1->msg != ob2->msg) ||
188	(ob1->weight != ob2->weight) ||
189	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||	232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
190	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||	233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
191	(ob1->attacktype != ob2->attacktype) ||	234	|| ob1->attacktype != ob2->attacktype
192	(ob1->magic != ob2->magic) ||	235	|| ob1->magic != ob2->magic
193	(ob1->slaying != ob2->slaying) ||	236	|| ob1->slaying != ob2->slaying
194	(ob1->skill != ob2->skill) ||	237	|| ob1->skill != ob2->skill
195	(ob1->value != ob2->value) ||	238	|| ob1->value != ob2->value
196	(ob1->animation_id != ob2->animation_id) ||	239	|| ob1->animation_id != ob2->animation_id
197	(ob1->client_type != ob2->client_type) ||	240	|| ob1->client_type != ob2->client_type
198	(ob1->materialname != ob2->materialname) ||	241	|| ob1->materialname != ob2->materialname
199	(ob1->lore != ob2->lore) ||	242	|| ob1->lore != ob2->lore
200	(ob1->subtype != ob2->subtype) ||	243	|| ob1->subtype != ob2->subtype
201	(ob1->move_type != ob2->move_type) ||	244	|| ob1->move_type != ob2->move_type
202	(ob1->move_block != ob2->move_block) ||	245	|| ob1->move_block != ob2->move_block
203	(ob1->move_allow != ob2->move_allow) ||	246	|| ob1->move_allow != ob2->move_allow
204	(ob1->move_on != ob2->move_on) ||	247	|| ob1->move_on != ob2->move_on
205	(ob1->move_off != ob2->move_off) ||	248	|| ob1->move_off != ob2->move_off
206	(ob1->move_slow != ob2->move_slow) ||	249	|| ob1->move_slow != ob2->move_slow
207	(ob1->move_slow_penalty != ob2->move_slow_penalty)	250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
208	)
209	return 0;	251	return 0;
210		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
211	/* 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,
212	* 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
213	* some items equipped, and we don't want those to merge.	273	* some items equipped, and we don't want those to merge.
214	*/	274	*/
215	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	275	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
216	return 0;	276	return 0;
217		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
218	switch (ob1->type) {	285	switch (ob1->type)
		286	{
219	case SCROLL:	287	case SCROLL:
220	if (ob1->level != ob2->level) return 0;	288	if (ob1->level != ob2->level)
		289	return 0;
221	break;	290	break;
222
223	}	291	}
		292
224	if (ob1->key_values != NULL || ob2->key_values != NULL) {	293	if (ob1->key_values != NULL || ob2->key_values != NULL)
		294	{
225	/* At least one of these has key_values. */	295	/* At least one of these has key_values. */
226	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {	296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
227	/* One has fields, but the other one doesn't. */	297	/* One has fields, but the other one doesn't. */
228	return 0;	298	return 0;
229	} else if (!compare_ob_value_lists(ob1, ob2)) {	299	else if (!compare_ob_value_lists (ob1, ob2))
230	return 0;	300	return 0;
231	}	301	}
		302
		303	//TODO: generate an event or call into perl for additional checks
		304	if (ob1->self || ob2->self)
232	}	305	{
		306	ob1->optimise ();
		307	ob2->optimise ();
233		308
		309	if (ob1->self || ob2->self)
		310	return 0;
		311	}
		312
234	/* Everything passes, must be OK. */	313	/* Everything passes, must be OK. */
235	return 1;	314	return 1;
236	}	315	}
237		316
238	/*	317	/*
239	* sum_weight() is a recursive function which calculates the weight	318	* sum_weight() is a recursive function which calculates the weight
240	* 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
241	* containers are carrying, and sums it up.	320	* containers are carrying, and sums it up.
242	*/	321	*/
243	signed long sum_weight(object *op) {	322	long
		323	sum_weight (object *op)
		324	{
244	signed long sum;	325	long sum;
245	object *inv;	326	object *inv;
		327
246	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		329	{
247	if (inv->inv)	330	if (inv->inv)
248	sum_weight(inv);	331	sum_weight (inv);
249	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
250	}	333	}
		334
251	if (op->type == CONTAINER && op->stats.Str)	335	if (op->type == CONTAINER && op->stats.Str)
252	sum = (sum * (100 - op->stats.Str))/100;	336	sum = (sum * (100 - op->stats.Str)) / 100;
		337
253	if(op->carrying != sum)	338	if (op->carrying != sum)
254	op->carrying = sum;	339	op->carrying = sum;
		340
255	return sum;	341	return sum;
256	}	342	}
257		343
258	/**	344	/**
259	* Return the outermost environment object for a given object.	345	* Return the outermost environment object for a given object.
260	*/	346	*/
261		347
		348	object *
262	object *object_get_env_recursive (object *op) {	349	object_get_env_recursive (object *op)
		350	{
263	while (op->env != NULL)	351	while (op->env != NULL)
264	op = op->env;	352	op = op->env;
265	return op;	353	return op;
266	}
267
268	/*
269	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
270	* a better check. We basically keeping traversing up until we can't
271	* or find a player.
272	*/
273
274	object *is_player_inv (object *op) {
275	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
276	if (op->env==op)
277	op->env = NULL;
278	return op;
279	}	354	}
280		355
281	/*	356	/*
282	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	357	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
283	* Some error messages.	358	* Some error messages.
284	* 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.
285	*/	360	*/
286		361
287	void dump_object2(object *op) {	362	char *
288	char *cp;
289	/* object *tmp;*/
290
291	if(op->arch!=NULL) {
292	strcat(errmsg,"arch ");
293	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
294	strcat(errmsg,"\n");
295	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
296	strcat(errmsg,cp);
297	#if 0
298	/* Don't dump player diffs - they are too long, mostly meaningless, and
299	* will overflow the buffer.
300	* Changed so that we don't dump inventory either. This may
301	* also overflow the buffer.
302	*/
303	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
304	strcat(errmsg,cp);
305	for (tmp=op->inv; tmp; tmp=tmp->below)
306	dump_object2(tmp);
307	#endif
308	strcat(errmsg,"end\n");
309	} else {
310	strcat(errmsg,"Object ");
311	if (op->name==NULL) strcat(errmsg, "(null)");
312	else strcat(errmsg,op->name);
313	strcat(errmsg,"\n");
314	#if 0
315	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
316	strcat(errmsg,cp);
317	for (tmp=op->inv; tmp; tmp=tmp->below)
318	dump_object2(tmp);
319	#endif
320	strcat(errmsg,"end\n");
321	}
322	}
323
324	/*
325	* Dumps an object. Returns output in the static global errmsg array.
326	*/
327
328	void dump_object(object *op) {	363	dump_object (object *op)
329	if(op==NULL) {
330	strcpy(errmsg,"[NULL pointer]");
331	return;
332	}
333	errmsg[0]='\0';
334	dump_object2(op);
335	}
336
337	/* GROS - Dumps an object. Return the result into a string */
338	/* Note that no checking is done for the validity of the target string, so */
339	/* you need to be sure that you allocated enough space for it. */
340	void dump_me(object *op, char *outstr)
341	{	364	{
342	char *cp;	365	if (!op)
		366	return strdup ("[NULLOBJ]");
343		367
344	if(op==NULL)	368	object_freezer freezer;
345	{	369	save_object (freezer, op, 1);
346	strcpy(outstr,"[NULL pointer]");	370	return freezer.as_string ();
347	return;
348	}
349	outstr[0]='\0';
350
351	if(op->arch!=NULL)
352	{
353	strcat(outstr,"arch ");
354	strcat(outstr,op->arch->name?op->arch->name:"(null)");
355	strcat(outstr,"\n");
356	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
357	strcat(outstr,cp);
358	strcat(outstr,"end\n");
359	}
360	else
361	{
362	strcat(outstr,"Object ");
363	if (op->name==NULL)
364	strcat(outstr, "(null)");
365	else
366	strcat(outstr,op->name);
367	strcat(outstr,"\n");
368	strcat(outstr,"end\n");
369	}
370	}
371
372	/*
373	* This is really verbose...Can be triggered by the P key while in DM mode.
374	* All objects are dumped to stderr (or alternate logfile, if in server-mode)
375	*/
376
377	void dump_all_objects(void) {
378	object *op;
379	for(op=objects;op!=NULL;op=op->next) {
380	dump_object(op);
381	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
382	}
383	}	371	}
384		372
385	/*	373	/*
386	* 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
387	* multi-object 1 which is closest to the second object.	375	* multi-object 1 which is closest to the second object.
388	* If it's not a multi-object, it is returned.	376	* If it's not a multi-object, it is returned.
389	*/	377	*/
390		378
		379	object *
391	object *get_nearest_part(object *op, const object *pl) {	380	get_nearest_part (object *op, const object *pl)
		381	{
392	object *tmp,*closest;	382	object *tmp, *closest;
393	int last_dist,i;	383	int last_dist, i;
		384
394	if(op->more==NULL)	385	if (op->more == NULL)
395	return op;	386	return op;
396	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)
397	if((i=distance(tmp,pl))<last_dist)	388	if ((i = distance (tmp, pl)) < last_dist)
398	closest=tmp,last_dist=i;	389	closest = tmp, last_dist = i;
399	return closest;	390	return closest;
400	}	391	}
401		392
402	/*	393	/*
403	* 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.
404	*/	395	*/
405		396
		397	object *
406	object *find_object(tag_t i) {	398	find_object (tag_t i)
407	object *op;	399	{
408	for(op=objects;op!=NULL;op=op->next)	400	for (object *op = object::first; op; op = op->next)
409	if(op->count==i)	401	if (op->count == i)
410	break;	402	return op;
		403
411	return op;	404	return 0;
412	}	405	}
413		406
414	/*	407	/*
415	* 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.
416	* Used only by the patch command, but not all that useful.	409	* Used only by the patch command, but not all that useful.
417	* Enables features like "patch <name-of-other-player> food 999"	410	* Enables features like "patch <name-of-other-player> food 999"
418	*/	411	*/
419		412
		413	object *
420	object *find_object_name(const char *str) {	414	find_object_name (const char *str)
421	const char *name=add_string(str);	415	{
		416	shstr_cmp str_ (str);
422	object *op;	417	object *op;
		418
423	for(op=objects;op!=NULL;op=op->next)	419	for (op = object::first; op != NULL; op = op->next)
424	if(op->name==name)	420	if (op->name == str_)
425	break;	421	break;
426	free_string(name);	422
427	return op;	423	return op;
428	}	424	}
429		425
		426	void
430	void free_all_object_data(void) {	427	free_all_object_data ()
431	#ifdef MEMORY_DEBUG
432	object *op, *next;
433
434	for (op=free_objects; op!=NULL; ) {
435	next=op->next;
436	free(op);
437	nrofallocobjects--;
438	nroffreeobjects--;
439	op=next;
440	}
441	#endif
442	LOG(llevDebug,"%d allocated objects, %d free objects, STARMAX=%d\n",
443	nrofallocobjects, nroffreeobjects,STARTMAX);
444	}
445
446	/*
447	* Returns the object which this object marks as being the owner.
448	* A id-scheme is used to avoid pointing to objects which have been
449	* freed and are now reused. If this is detected, the owner is
450	* set to NULL, and NULL is returned.
451	* Changed 2004-02-12 - if the player is setting at the play again
452	* prompt, he is removed, and we don't want to treat him as an owner of
453	* anything, so check removed flag. I don't expect that this should break
454	* anything - once an object is removed, it is basically dead anyways.
455	*/
456
457	object *get_owner(object *op) {
458	if(op->owner==NULL)
459	return NULL;
460
461	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
462	op->owner->count==op->ownercount)
463	return op->owner;
464
465	op->owner=NULL;
466	op->ownercount=0;
467	return NULL;
468	}
469
470	void clear_owner(object *op)
471	{	428	{
472	if (!op) return;	429	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
473
474	if (op->owner && op->ownercount == op->owner->count)
475	op->owner->refcount--;
476
477	op->owner = NULL;
478	op->ownercount = 0;
479	}	430	}
480
481
482		431
483	/*	432	/*
484	* 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
485	* skill and experience objects.	434	* skill and experience objects.
486	*/	435	*/
487	void set_owner (object *op, object *owner)	436	void
		437	object::set_owner (object *owner)
488	{	438	{
489	if(owner==NULL||op==NULL)	439	if (!owner)
490	return;	440	return;
491		441
492	/* next line added to allow objects which own objects */	442	/* next line added to allow objects which own objects */
493	/* 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
494	* with the fireball owning a poison cloud which then owned the	444	* with the fireball owning a poison cloud which then owned the
495	* 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
496	* freed and then another object replacing it. Since the ownercounts	446	* freed and then another object replacing it. Since the ownercounts
497	* didn't match, this check is valid and I believe that cause is valid.	447	* didn't match, this check is valid and I believe that cause is valid.
498	*/	448	*/
499	while (owner->owner && owner!=owner->owner &&	449	while (owner->owner)
500	owner->ownercount==owner->owner->count) owner=owner->owner;	450	owner = owner->owner;
501		451
502	/* IF the owner still has an owner, we did not resolve to a final owner.
503	* so lets not add to that.
504	*/
505	if (owner->owner) return;
506
507	op->owner=owner;	452	this->owner = owner;
508
509	op->ownercount=owner->count;
510	owner->refcount++;
511
512	}
513
514	/* Set the owner to clone's current owner and set the skill and experience
515	* objects to clone's objects (typically those objects that where the owner's
516	* current skill and experience objects at the time when clone's owner was
517	* set - not the owner's current skill and experience objects).
518	*
519	* Use this function if player created an object (e.g. fire bullet, swarm
520	* spell), and this object creates further objects whose kills should be
521	* accounted for the player's original skill, even if player has changed
522	* skills meanwhile.
523	*/
524	void copy_owner (object *op, object *clone)
525	{
526	object *owner = get_owner (clone);
527	if (owner == NULL) {
528	/* players don't have owners - they own themselves. Update
529	* as appropriate.
530	*/
531	if (clone->type == PLAYER) owner=clone;
532	else return;
533	}
534	set_owner(op, owner);
535
536	}
537
538	/*
539	* Resets vital variables in an object
540	*/
541
542	void reset_object(object *op) {
543
544	op->name = NULL;
545	op->name_pl = NULL;
546	op->title = NULL;
547	op->race = NULL;
548	op->slaying = NULL;
549	op->skill = NULL;
550	op->msg = NULL;
551	op->materialname = NULL;
552	op->lore = NULL;
553	op->current_weapon_script = NULL;
554	clear_object(op);
555	}	453	}
556		454
557	/* Zero the key_values on op, decrementing the shared-string	455	/* Zero the key_values on op, decrementing the shared-string
558	* refcounts and freeing the links.	456	* refcounts and freeing the links.
559	*/	457	*/
		458	static void
560	static void free_key_values(object * op) {	459	free_key_values (object *op)
561	key_value * i;	460	{
562	key_value * next = NULL;	461	for (key_value *i = op->key_values; i != 0;)
563		462	{
564	if (op->key_values == NULL) return;	463	key_value *next = i->next;
		464	delete i;
		465
		466	i = next;
565		467	}
566	for (i = op->key_values; i != NULL; i = next) {	468
567	/* Store next *first*. */
568	next = i->next;
569
570	if (i->key) FREE_AND_CLEAR_STR(i->key);
571	if (i->value) FREE_AND_CLEAR_STR(i->value);
572	i->next = NULL;
573	free(i);
574	}
575
576	op->key_values = NULL;	469	op->key_values = 0;
577	}	470	}
578		471
579
580	/*	472	/*
581	* clear_object() frees everything allocated by an object, and also
582	* clears all variables and flags to default settings.
583	*/
584
585	void clear_object(object *op) {
586
587	event *evt;
588	event *evt2;
589
590	/* redo this to be simpler/more efficient. Was also seeing
591	* crashes in the old code. Move this to the top - am
592	* seeing periodic crashes in this code, and would like to have
593	* as much info available as possible (eg, object name).
594	*/
595	for (evt = op->events; evt; evt=evt2) {
596	evt2 = evt->next;
597
598	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
599	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
600	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
601
602	free(evt);
603	}
604	op->events = NULL;
605
606	free_key_values(op);
607
608	/* the memset will clear all these values for us, but we need
609	* to reduce the refcount on them.
610	*/
611	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);
612	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);
613	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);
614	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);
615	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);
616	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);
617	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);
618	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);
619	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);
620
621
622	memset((void*)op, 0, sizeof (object_special));
623	/* Below here, we clear things that are not done by the memset,
624	* or set default values that are not zero.
625	*/
626	/* This is more or less true */
627	SET_FLAG(op, FLAG_REMOVED);
628
629
630	op->contr = NULL;
631	op->below=NULL;
632	op->above=NULL;
633	op->inv=NULL;
634	op->events=NULL;
635	op->container=NULL;
636	op->env=NULL;
637	op->more=NULL;
638	op->head=NULL;
639	op->map=NULL;
640	op->refcount=0;
641	op->active_next = NULL;
642	op->active_prev = NULL;
643	/* What is not cleared is next, prev, and count */
644
645	op->expmul=1.0;
646	op->face = blank_face;
647	op->attacked_by_count = (tag_t) -1;
648	if (settings.casting_time)
649	op->casting_time = -1;
650
651	}
652
653	/*
654	* copy object first frees everything allocated by the second object,	473	* copy_to first frees everything allocated by the dst object,
655	* and then copies the contends of the first object into the second	474	* and then copies the contents of itself into the second
656	* object, allocating what needs to be allocated. Basically, any	475	* object, allocating what needs to be allocated. Basically, any
657	* 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,
658	* 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
659	* will point at garbage.	478	* will point at garbage.
660	*/	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);
661		485
662	void copy_object(object *op2, object *op) {	486	*(object_copy *)dst = *this;
663	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);
664	event *evt, *evt2, *evt_new;
665		487
666	/* Decrement the refcounts, but don't bother zeroing the fields;	488	if (is_freed)
667	they'll be overwritten by memcpy. */	489	SET_FLAG (dst, FLAG_FREED);
668	if(op->name!=NULL) free_string(op->name);
669	if(op->name_pl!=NULL) free_string(op->name_pl);
670	if(op->title!=NULL) free_string(op->title);
671	if(op->race!=NULL) free_string(op->race);
672	if(op->slaying!=NULL) free_string(op->slaying);
673	if(op->skill!=NULL) free_string(op->skill);
674	if(op->msg!=NULL) free_string(op->msg);
675	if(op->lore!=NULL) free_string(op->lore);
676	if(op->materialname != NULL) free_string(op->materialname);
677	if(op->custom_name != NULL) free_string(op->custom_name);
678		490
679	/* Basically, same code as from clear_object() */	491	if (is_removed)
680	for (evt = op->events; evt; evt=evt2) {	492	SET_FLAG (dst, FLAG_REMOVED);
681	evt2 = evt->next;
682		493
683	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);	494	if (speed < 0)
684	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
685	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
686
687	free(evt);
688	}
689	op->events = NULL;
690
691	free_key_values(op);
692
693	*(object_special *)op = *(object_special *)op2;
694
695	if(is_freed) SET_FLAG(op,FLAG_FREED);
696	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
697	if(op->name!=NULL) add_refcount(op->name);
698	if(op->name_pl!=NULL) add_refcount(op->name_pl);
699	if(op->title!=NULL) add_refcount(op->title);
700	if(op->race!=NULL) add_refcount(op->race);
701	if(op->slaying!=NULL) add_refcount(op->slaying);
702	if(op->skill!=NULL) add_refcount(op->skill);
703	if(op->lore!=NULL) add_refcount(op->lore);
704	if(op->msg!=NULL) add_refcount(op->msg);
705	if(op->custom_name!=NULL) add_refcount(op->custom_name);
706	if (op->materialname != NULL) add_refcount(op->materialname);
707
708	if((op2->speed<0) && !editor)
709	op->speed_left=op2->speed_left-RANDOM()%200/100.0;	495	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
710		496
711	/* Copy over event information */
712	evt2 = NULL;
713	for (evt = op2->events; evt; evt=evt->next) {
714	evt_new = (event *) malloc(sizeof(event));
715	memcpy(evt_new, evt, sizeof(event));
716	if (evt_new->hook) add_refcount(evt_new->hook);
717	if (evt_new->plugin) add_refcount(evt_new->plugin);
718	if (evt_new->options) add_refcount(evt_new->options);
719	evt_new->next = NULL;
720
721	/* Try to be a little clever here, and store away the
722	* last event we copied, so that its simpler to update the
723	* pointer.
724	*/
725	if (evt2)
726	evt2->next = evt_new;
727	else
728	op->events = evt_new;
729
730	evt2 = evt_new;
731	}
732	/* Copy over key_values, if any. */	497	/* Copy over key_values, if any. */
733	if (op2->key_values != NULL) {	498	if (key_values)
734	key_value * tail = NULL;	499	{
		500	key_value *tail = 0;
735	key_value * i;	501	key_value *i;
736		502
737	op->key_values = NULL;	503	dst->key_values = 0;
738		504
739	for (i = op2->key_values; i != NULL; i = i->next) {	505	for (i = key_values; i; i = i->next)
740	key_value * new_link = (key_value *) malloc(sizeof(key_value));	506	{
		507	key_value *new_link = new key_value;
741		508
742	new_link->next = NULL;	509	new_link->next = 0;
743	new_link->key = add_refcount(i->key);	510	new_link->key = i->key;
744	if (i->value)	511	new_link->value = i->value;
745	new_link->value = add_refcount(i->value);
746	else
747	new_link->value = NULL;
748		512
749	/* Try and be clever here, too. */	513	/* Try and be clever here, too. */
750	if (op->key_values == NULL) {	514	if (!dst->key_values)
751	op->key_values = new_link;	515	{
752	tail = new_link;	516	dst->key_values = new_link;
753	} else {	517	tail = new_link;
754	tail->next = new_link;	518	}
755	tail = new_link;	519	else
		520	{
		521	tail->next = new_link;
		522	tail = new_link;
		523	}
		524	}
756	}	525	}
757	}
758	}
759
760	update_ob_speed(op);
761	}
762		526
763	/*	527	dst->set_speed (dst->speed);
764	* expand_objects() allocates more objects for the list of unused objects.
765	* It is called from get_object() if the unused list is empty.
766	*/
767
768	void expand_objects(void) {
769	int i;
770	object *obj;
771	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));
772
773	if(obj==NULL)
774	fatal(OUT_OF_MEMORY);
775	free_objects=obj;
776	obj[0].prev=NULL;
777	obj[0].next= &obj[1],
778	SET_FLAG(&(obj[0]), FLAG_REMOVED);
779	SET_FLAG(&(obj[0]), FLAG_FREED);
780
781	for(i=1;i<OBJ_EXPAND-1;i++) {
782	obj[i].next= &obj[i+1],
783	obj[i].prev= &obj[i-1],
784	SET_FLAG(&(obj[i]), FLAG_REMOVED);
785	SET_FLAG(&(obj[i]), FLAG_FREED);
786	}
787	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
788	obj[OBJ_EXPAND-1].next=NULL,
789	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
790	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
791
792	nrofallocobjects += OBJ_EXPAND;
793	nroffreeobjects += OBJ_EXPAND;
794	}	528	}
795		529
796	/*
797	* get_object() grabs an object from the list of unused objects, makes
798	* sure it is initialised, and returns it.
799	* If there are no free objects, expand_objects() is called to get more.
800	*/
801
802	object *get_object(void) {
803	object *op;	530	object *
804		531	object::clone ()
805	if(free_objects==NULL) {	532	{
806	expand_objects();	533	object *neu = create ();
807	}	534	copy_to (neu);
808	op=free_objects;
809	#ifdef MEMORY_DEBUG
810	/* The idea is hopefully by doing a realloc, the memory
811	* debugging program will now use the current stack trace to
812	* report leaks.
813	*/
814	op = realloc(op, sizeof(object));
815	SET_FLAG(op, FLAG_REMOVED);
816	SET_FLAG(op, FLAG_FREED);
817	#endif
818
819	if(!QUERY_FLAG(op,FLAG_FREED)) {
820	LOG(llevError,"Fatal: Getting busy object.\n");
821	}
822	free_objects=op->next;
823	if(free_objects!=NULL)
824	free_objects->prev=NULL;
825	op->count= ++ob_count;
826	op->name=NULL;
827	op->name_pl=NULL;
828	op->title=NULL;
829	op->race=NULL;
830	op->slaying=NULL;
831	op->skill = NULL;
832	op->lore=NULL;
833	op->msg=NULL;
834	op->materialname=NULL;
835	op->next=objects;
836	op->prev=NULL;
837	op->active_next = NULL;
838	op->active_prev = NULL;
839	if(objects!=NULL)
840	objects->prev=op;
841	objects=op;
842	clear_object(op);
843	SET_FLAG(op,FLAG_REMOVED);
844	nroffreeobjects--;
845	return op;	535	return neu;
846	}	536	}
847		537
848	/*	538	/*
849	* 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
850	* 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
851	* 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.
852	*/	542	*/
853		543
		544	void
854	void update_turn_face(object *op) {	545	update_turn_face (object *op)
		546	{
855	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	547	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
856	return;	548	return;
857	SET_ANIMATION(op, op->direction);	549	SET_ANIMATION (op, op->direction);
858	update_object(op,UP_OBJ_FACE);	550	update_object (op, UP_OBJ_FACE);
859	}	551	}
860		552
861	/*	553	/*
862	* 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
863	* 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.
864	* 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.
865	*/	557	*/
866		558	void
867	void update_ob_speed(object *op) {	559	object::set_speed (float speed)
		560	{
868	extern int arch_init;	561	extern int arch_init;
869		562
870	/* No reason putting the archetypes objects on the speed list,	563	/* No reason putting the archetypes objects on the speed list,
871	* since they never really need to be updated.	564	* since they never really need to be updated.
872	*/	565	*/
873		566	if (flag [FLAG_FREED] && speed)
874	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	567	{
875	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	568	LOG (llevError, "Object %s is freed but has speed.\n", &name);
876	#ifdef MANY_CORES	569	speed = 0;
877	abort();
878	#else
879	op->speed = 0;
880	#endif
881	}	570	}
		571
		572	this->speed = speed;
		573
882	if (arch_init) {	574	if (arch_init)
883	return;
884	}
885	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
886	/* If already on active list, don't do anything */
887	if (op->active_next || op->active_prev || op==active_objects)
888	return;	575	return;
889		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
890	/* process_events() expects us to insert the object at the beginning	583	/* process_events() expects us to insert the object at the beginning
891	* of the list. */	584	* of the list. */
892	op->active_next = active_objects;	585	active_next = active_objects;
893	if (op->active_next!=NULL)	586
894	op->active_next->active_prev = op;	587	if (active_next)
895	active_objects = op;	588	active_next->active_prev = this;
		589
		590	active_objects = this;
		591	}
		592	else
896	}	593	{
897	else {
898	/* If not on the active list, nothing needs to be done */	594	/* If not on the active list, nothing needs to be done */
899	if (!op->active_next && !op->active_prev && op!=active_objects)	595	if (!active_next && !active_prev && this != active_objects)
900	return;	596	return;
901		597
902	if (op->active_prev==NULL) {	598	if (!active_prev)
		599	{
903	active_objects = op->active_next;	600	active_objects = active_next;
904	if (op->active_next!=NULL)	601
905	op->active_next->active_prev = NULL;
906	}
907	else {
908	op->active_prev->active_next = op->active_next;
909	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)
910	op->active_next->active_prev = op->active_prev;	610	active_next->active_prev = active_prev;
911	}	611	}
912	op->active_next = NULL;	612
913	op->active_prev = NULL;	613	active_next = 0;
		614	active_prev = 0;
914	}	615	}
915	}	616	}
916		617
917	/* This function removes object 'op' from the list of active	618	/* This function removes object 'op' from the list of active
918	* objects.	619	* objects.
…		…
920	* 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
921	* in play chewing up cpu time getting processed.	622	* in play chewing up cpu time getting processed.
922	* The reverse of this is to call update_ob_speed, which	623	* The reverse of this is to call update_ob_speed, which
923	* 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.
924	*/	625	*/
		626	void
925	void remove_from_active_list(object *op)	627	remove_from_active_list (object *op)
926	{	628	{
927	/* If not on the active list, nothing needs to be done */	629	/* If not on the active list, nothing needs to be done */
928	if (!op->active_next && !op->active_prev && op!=active_objects)	630	if (!op->active_next && !op->active_prev && op != active_objects)
929	return;	631	return;
930		632
931	if (op->active_prev==NULL) {	633	if (op->active_prev == NULL)
		634	{
932	active_objects = op->active_next;	635	active_objects = op->active_next;
933	if (op->active_next!=NULL)	636	if (op->active_next != NULL)
934	op->active_next->active_prev = NULL;	637	op->active_next->active_prev = NULL;
		638	}
		639	else
935	}	640	{
936	else {
937	op->active_prev->active_next = op->active_next;	641	op->active_prev->active_next = op->active_next;
938	if (op->active_next)	642	if (op->active_next)
939	op->active_next->active_prev = op->active_prev;	643	op->active_next->active_prev = op->active_prev;
940	}	644	}
941	op->active_next = NULL;	645	op->active_next = NULL;
942	op->active_prev = NULL;	646	op->active_prev = NULL;
943	}	647	}
944		648
945	/*	649	/*
946	* update_object() updates the array which represents the map.	650	* update_object() updates the the map.
947	* It takes into account invisible objects (and represent squares covered	651	* It takes into account invisible objects (and represent squares covered
948	* 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
949	* invisible object, etc...)	653	* invisible object, etc...)
950	* 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
951	* 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
952	* updating that window, though, since update_object() is called _often_)	656	* updating that window, though, since update_object() is called _often_)
953	*	657	*
954	* 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.
955	* For example, if the only thing that has changed is the face (due to
956	* an animation), we don't need to call update_position until that actually
957	* comes into view of a player. OTOH, many other things, like addition/removal
958	* of walls or living creatures may need us to update the flags now.
959	* current action are:	659	* current action are:
960	* UP_OBJ_INSERT: op was inserted	660	* UP_OBJ_INSERT: op was inserted
961	* UP_OBJ_REMOVE: op was removed	661	* UP_OBJ_REMOVE: op was removed
962	* 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
963	* 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.
964	* UP_OBJ_FACE: only the objects face has changed.	664	* UP_OBJ_FACE: only the objects face has changed.
965	*/	665	*/
966		666	void
967	void update_object(object *op, int action) {	667	update_object (object *op, int action)
968	int update_now=0, flags;	668	{
969	MoveType move_on, move_off, move_block, move_slow;	669	MoveType move_on, move_off, move_block, move_slow;
970		670
971	if (op == NULL) {	671	if (op == NULL)
		672	{
972	/* this should never happen */	673	/* this should never happen */
973	LOG(llevDebug,"update_object() called for NULL object.\n");	674	LOG (llevDebug, "update_object() called for NULL object.\n");
974	return;	675	return;
975	}
976		676	}
977	if(op->env!=NULL) {	677
		678	if (op->env)
		679	{
978	/* Animation is currently handled by client, so nothing	680	/* Animation is currently handled by client, so nothing
979	* to do in this case.	681	* to do in this case.
980	*/	682	*/
981	return;	683	return;
982	}	684	}
983		685
984	/* 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
985	* going to get freed anyways.	687	* going to get freed anyways.
986	*/	688	*/
987	if (!op->map || op->map->in_memory == MAP_SAVING) return;	689	if (!op->map || op->map->in_memory == MAP_SAVING)
988		690	return;
		691
989	/* make sure the object is within map boundaries */	692	/* make sure the object is within map boundaries */
990	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)
991	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	694	{
992	LOG(llevError,"update_object() called for object out of map!\n");	695	LOG (llevError, "update_object() called for object out of map!\n");
993	#ifdef MANY_CORES	696	#ifdef MANY_CORES
994	abort();	697	abort ();
995	#endif	698	#endif
996	return;	699	return;
997	}
998		700	}
999	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
1000	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
1001	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
1002	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
1003	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
1004	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
1005		701
		702	mapspace &m = op->ms ();
		703
		704	if (m.flags_ & P_NEED_UPDATE)
		705	/* nop */;
1006	if (action == UP_OBJ_INSERT) {	706	else if (action == UP_OBJ_INSERT)
		707	{
		708	// this is likely overkill, TODO: revisit (schmorp)
1007	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	709	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
1008	update_now=1;
1009
1010	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	710	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
1011	update_now=1;	711	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
1012		712	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		713	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
1013	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	714	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
1014	update_now=1;	715	|| (m.move_on | op->move_on ) != m.move_on
1015		716	|| (m.move_off | op->move_off ) != m.move_off
1016	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	717	|| (m.move_slow | op->move_slow) != m.move_slow
1017	update_now=1;
1018
1019	if ((move_on | op->move_on) != move_on) update_now=1;
1020	if ((move_off | op->move_off) != move_off) update_now=1;
1021	/* This isn't perfect, but I don't expect a lot of objects to	718	/* This isn't perfect, but I don't expect a lot of objects to
1022	* to have move_allow right now.	719	* to have move_allow right now.
1023	*/	720	*/
1024	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	721	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
1025	update_now=1;	722	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
1026	if ((move_slow | op->move_slow) != move_slow) update_now=1;	723	m.flags_ = P_NEED_UPDATE;
1027	}	724	}
1028	/* if the object is being removed, we can't make intelligent	725	/* if the object is being removed, we can't make intelligent
1029	* decisions, because remove_ob can't really pass the object	726	* decisions, because remove_ob can't really pass the object
1030	* that is being removed.	727	* that is being removed.
1031	*/	728	*/
1032	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	729	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1033	update_now=1;	730	m.flags_ = P_NEED_UPDATE;
1034	} else if (action == UP_OBJ_FACE) {	731	else if (action == UP_OBJ_FACE)
1035	/* Nothing to do for that case */	732	/* Nothing to do for that case */ ;
1036	}
1037	else {	733	else
1038	LOG(llevError,"update_object called with invalid action: %d\n", action);	734	LOG (llevError, "update_object called with invalid action: %d\n", action);
1039	}
1040		735
1041	if (update_now) {
1042	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1043	update_position(op->map, op->x, op->y);
1044	}
1045
1046	if(op->more!=NULL)	736	if (op->more)
1047	update_object(op->more, action);	737	update_object (op->more, action);
1048	}	738	}
1049		739
		740	object::vector object::objects; // not yet used
		741	object *object::first;
1050		742
1051	/*	743	object::object ()
1052	* free_object() frees everything allocated by an object, removes	744	{
1053	* it from the list of used objects, and puts it on the list of
1054	* free objects. The IS_FREED() flag is set in the object.
1055	* The object must have been removed by remove_ob() first for
1056	* this function to succeed.
1057	*
1058	* If free_inventory is set, free inventory as well. Else drop items in
1059	* inventory to the ground.
1060	*/
1061
1062	void free_object(object *ob) {
1063	free_object2(ob, 0);
1064	}
1065	void free_object2(object *ob, int free_inventory) {
1066	object *tmp,*op;
1067
1068	if (object_free_callback)
1069	object_free_callback (ob);
1070
1071	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {
1072	LOG(llevDebug,"Free object called with non removed object\n");
1073	dump_object(ob);
1074	#ifdef MANY_CORES
1075	abort();
1076	#endif
1077	}
1078	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {
1079	LOG(llevMonster,"Warning: tried to free friendly object.\n");
1080	remove_friendly_object(ob);
1081	}
1082	if(QUERY_FLAG(ob,FLAG_FREED)) {
1083	dump_object(ob);
1084	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);
1085	return;
1086	}
1087	if(ob->more!=NULL) {
1088	free_object2(ob->more, free_inventory);
1089	ob->more=NULL;
1090	}
1091	if (ob->inv) {
1092	/* Only if the space blocks everything do we not process -
1093	* if some form of movemnt is allowed, let objects
1094	* drop on that space.
1095	*/
1096	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||
1097	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))
1098	{
1099	op=ob->inv;
1100	while(op!=NULL) {
1101	tmp=op->below;
1102	remove_ob(op);
1103	free_object2(op, free_inventory);
1104	op=tmp;
1105	}
1106	}
1107	else { /* Put objects in inventory onto this space */
1108	op=ob->inv;
1109	while(op!=NULL) {
1110	tmp=op->below;
1111	remove_ob(op);
1112	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||
1113	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))
1114	free_object(op);
1115	else {
1116	op->x=ob->x;
1117	op->y=ob->y;
1118	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */
1119	}
1120	op=tmp;
1121	}
1122	}
1123	}
1124	/* Remove object from the active list */
1125	ob->speed = 0;
1126	update_ob_speed(ob);
1127
1128	SET_FLAG(ob, FLAG_FREED);	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 || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
1153		795	{
1154	/* Why aren't events freed? */	796	while (inv)
1155	free_key_values(ob);	797	inv->destroy ();
		798	}
		799	else
		800	{ /* Put objects in inventory onto this space */
		801	while (inv)
		802	{
		803	object *op = inv;
1156		804
1157	#if 0 /* MEMORY_DEBUG*/	805	if (op->flag [FLAG_STARTEQUIP]
1158	/* This is a nice idea. Unfortunately, a lot of the code in crossfire	806	|| op->flag [FLAG_NO_DROP]
1159	* presumes the freed_object will stick around for at least a little	807	|| op->type == RUNE
1160	* bit	808	|| op->type == TRAP
1161	*/	809	|| op->flag [FLAG_IS_A_TEMPLATE])
1162	/* this is necessary so that memory debugging programs will	810	op->destroy ();
1163	* be able to accurately report source of malloc. If we recycle	811	else
1164	* objects, then some other area may be doing the get_object	812	{
1165	* and not freeing it, but the original one that malloc'd the	813	op->remove ();
1166	* object will get the blame.	814	op->x = x;
1167	*/	815	op->y = y;
1168	free(ob);	816	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
1169	#else	817	}
1170		818	}
1171	/* Now link it with the free_objects list: */	819	}
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	}	820	}
1180		821
1181	/*	822	object *object::create ()
1182	* count_free() returns the number of objects on the list of free objects.	823	{
1183	*/
1184
1185	int count_free(void) {
1186	int i=0;
1187	object *tmp=free_objects;	824	object *op = new object;
1188	while(tmp!=NULL)	825	op->link ();
1189	tmp=tmp->next, i++;
1190	return i;	826	return op;
1191	}	827	}
1192		828
1193	/*	829	void
1194	* count_used() returns the number of objects on the list of used objects.	830	object::do_destroy ()
1195	*/	831	{
		832	attachable::do_destroy ();
1196		833
1197	int count_used(void) {	834	if (flag [FLAG_IS_LINKED])
1198	int i=0;	835	remove_button_link (this);
1199	object *tmp=objects;	836
1200	while(tmp!=NULL)	837	if (flag [FLAG_FRIENDLY])
1201	tmp=tmp->next, i++;	838	remove_friendly_object (this);
		839
		840	if (!flag [FLAG_REMOVED])
		841	remove ();
		842
		843	if (flag [FLAG_FREED])
1202	return i;	844	return;
1203	}
1204		845
1205	/*	846	flag [FLAG_FREED] = 1;
1206	* count_active() returns the number of objects on the list of active objects.
1207	*/
1208		847
1209	int count_active(void) {	848	destroy_inv (true);
1210	int i=0;	849	set_speed (0);
1211	object *tmp=active_objects;	850	unlink ();
1212	while(tmp!=NULL)	851
1213	tmp=tmp->active_next, i++;	852	// hack to ensure that freed objects still have a valid map
		853	{
		854	static maptile *freed_map; // freed objects are moved here to avoid crashes
		855
		856	if (!freed_map)
		857	{
		858	freed_map = new maptile;
		859
		860	freed_map->name = "/internal/freed_objects_map";
		861	freed_map->width = 3;
		862	freed_map->height = 3;
		863
		864	freed_map->allocate ();
		865	}
		866
		867	map = freed_map;
		868	x = 1;
		869	y = 1;
		870	}
		871
		872	head = 0;
		873
		874	if (more)
		875	{
		876	more->destroy ();
		877	more = 0;
		878	}
		879
		880	// clear those pointers that likely might have circular references to us
		881	owner = 0;
		882	enemy = 0;
		883	attacked_by = 0;
		884
		885	// only relevant for players(?), but make sure of it anyways
		886	contr = 0;
		887	}
		888
		889	void
		890	object::destroy (bool destroy_inventory)
		891	{
		892	if (destroyed ())
1214	return i;	893	return;
		894
		895	if (destroy_inventory)
		896	destroy_inv (false);
		897
		898	attachable::destroy ();
1215	}	899	}
1216		900
1217	/*	901	/*
1218	* sub_weight() recursively (outwards) subtracts a number from the	902	* sub_weight() recursively (outwards) subtracts a number from the
1219	* weight of an object (and what is carried by it's environment(s)).	903	* weight of an object (and what is carried by it's environment(s)).
1220	*/	904	*/
1221		905	void
1222	void sub_weight (object *op, signed long weight) {	906	sub_weight (object *op, signed long weight)
		907	{
1223	while (op != NULL) {	908	while (op != NULL)
		909	{
1224	if (op->type == CONTAINER) {	910	if (op->type == CONTAINER)
1225	weight=(signed long)(weight*(100-op->stats.Str)/100);	911	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1226	}	912
1227	op->carrying-=weight;	913	op->carrying -= weight;
1228	op = op->env;	914	op = op->env;
1229	}	915	}
1230	}	916	}
1231		917
1232	/* remove_ob(op):	918	/* op->remove ():
1233	* This function removes the object op from the linked list of objects	919	* 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	920	* which it is currently tied to. When this function is done, the
1235	* object will have no environment. If the object previously had an	921	* object will have no environment. If the object previously had an
1236	* environment, the x and y coordinates will be updated to	922	* environment, the x and y coordinates will be updated to
1237	* the previous environment.	923	* the previous environment.
1238	* Beware: This function is called from the editor as well!	924	* Beware: This function is called from the editor as well!
1239	*/	925	*/
1240		926	void
1241	void remove_ob(object *op) {	927	object::remove ()
		928	{
1242	object *tmp,*last=NULL;	929	object *tmp, *last = 0;
1243	object *otmp;	930	object *otmp;
1244	tag_t tag;
1245	int check_walk_off;
1246	mapstruct *m;
1247	sint16 x,y;
1248
1249		931
1250	if(QUERY_FLAG(op,FLAG_REMOVED)) {	932	if (QUERY_FLAG (this, FLAG_REMOVED))
1251	dump_object(op);	933	return;
1252	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1253		934
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);	935	SET_FLAG (this, FLAG_REMOVED);
		936	INVOKE_OBJECT (REMOVE, this);
1270		937
		938	if (more)
		939	more->remove ();
		940
1271	/*	941	/*
1272	* In this case, the object to be removed is in someones	942	* In this case, the object to be removed is in someones
1273	* inventory.	943	* inventory.
1274	*/	944	*/
1275	if(op->env!=NULL) {	945	if (env)
1276	if(op->nrof)	946	{
		947	if (nrof)
1277	sub_weight(op->env, op->weight*op->nrof);	948	sub_weight (env, weight * nrof);
1278	else	949	else
1279	sub_weight(op->env, op->weight+op->carrying);	950	sub_weight (env, weight + carrying);
1280		951
1281	/* NO_FIX_PLAYER is set when a great many changes are being	952	/* NO_FIX_PLAYER is set when a great many changes are being
1282	* made to players inventory. If set, avoiding the call	953	* made to players inventory. If set, avoiding the call
1283	* to save cpu time.	954	* to save cpu time.
1284	*/	955	*/
1285	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	956	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1286	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	957	otmp->update_stats ();
1287	fix_player(otmp);
1288		958
1289	if(op->above!=NULL)	959	if (above != NULL)
1290	op->above->below=op->below;	960	above->below = below;
1291	else	961	else
1292	op->env->inv=op->below;	962	env->inv = below;
1293		963
1294	if(op->below!=NULL)	964	if (below != NULL)
1295	op->below->above=op->above;	965	below->above = above;
1296		966
1297	/* we set up values so that it could be inserted into	967	/* we set up values so that it could be inserted into
1298	* the map, but we don't actually do that - it is up	968	* the map, but we don't actually do that - it is up
1299	* to the caller to decide what we want to do.	969	* to the caller to decide what we want to do.
1300	*/	970	*/
1301	op->x=op->env->x,op->y=op->env->y;	971	x = env->x, y = env->y;
1302	op->ox=op->x,op->oy=op->y;	972	map = env->map;
1303	op->map=op->env->map;	973	above = 0, below = 0;
1304	op->above=NULL,op->below=NULL;	974	env = 0;
1305	op->env=NULL;	975	}
1306	return;	976	else if (map)
1307	}	977	{
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	978	/* Re did the following section of code - it looks like it had
1331	* lots of logic for things we no longer care about	979	* lots of logic for things we no longer care about
1332	*/	980	*/
1333		981
1334	/* link the object above us */	982	/* link the object above us */
1335	if (op->above)	983	if (above)
1336	op->above->below=op->below;	984	above->below = below;
1337	else	985	else
1338	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */	986	map->at (x, y).top = below; /* we were top, set new top */
1339		987
1340	/* Relink the object below us, if there is one */	988	/* Relink the object below us, if there is one */
1341	if(op->below) {	989	if (below)
1342	op->below->above=op->above;	990	below->above = above;
1343	} else {	991	else
		992	{
1344	/* Nothing below, which means we need to relink map object for this space	993	/* 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	994	* use translated coordinates in case some oddness with map tiling is
1346	* evident	995	* evident
1347	*/	996	*/
1348	if(GET_MAP_OB(m,x,y)!=op) {	997	if (GET_MAP_OB (map, x, y) != this)
1349	dump_object(op);	998	{
		999	char *dump = dump_object (this);
		1000	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);	1001	"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));	1002	free (dump);
1352	LOG(llevError,"%s\n",errmsg);	1003	dump = dump_object (GET_MAP_OB (map, x, y));
1353	}	1004	LOG (llevError, "%s\n", dump);
1354	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1005	free (dump);
1355	}	1006	}
1356	op->above=NULL;
1357	op->below=NULL;
1358		1007
		1008	map->at (x, y).bot = above; /* goes on above it. */
		1009	}
		1010
		1011	above = 0;
		1012	below = 0;
		1013
1359	if (op->map->in_memory == MAP_SAVING)	1014	if (map->in_memory == MAP_SAVING)
1360	return;	1015	return;
1361		1016
1362	tag = op->count;	1017	int check_walk_off = !flag [FLAG_NO_APPLY];
1363	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1018
1364	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1019	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
		1020	{
1365	/* No point updating the players look faces if he is the object	1021	/* No point updating the players look faces if he is the object
1366	* being removed.	1022	* being removed.
1367	*/	1023	*/
1368		1024
1369	if(tmp->type==PLAYER && tmp!=op) {	1025	if (tmp->type == PLAYER && tmp != this)
		1026	{
1370	/* If a container that the player is currently using somehow gets	1027	/* If a container that the player is currently using somehow gets
1371	* removed (most likely destroyed), update the player view	1028	* removed (most likely destroyed), update the player view
1372	* appropriately.	1029	* appropriately.
1373	*/	1030	*/
1374	if (tmp->container==op) {	1031	if (tmp->container == this)
1375	CLEAR_FLAG(op, FLAG_APPLIED);	1032	{
1376	tmp->container=NULL;	1033	flag [FLAG_APPLIED] = 0;
1377	}	1034	tmp->container = 0;
1378	tmp->contr->socket.update_look=1;	1035	}
1379	}	1036
		1037	if (tmp->contr->ns)
		1038	tmp->contr->ns->floorbox_update ();
		1039	}
		1040
1380	/* See if player moving off should effect something */	1041	/* See if player moving off should effect something */
1381	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1042	if (check_walk_off
		1043	&& ((move_type & tmp->move_off)
1382	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1044	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1045	{
		1046	move_apply (tmp, this, 0);
1383		1047
1384	move_apply(tmp, op, NULL);	1048	if (destroyed ())
1385	if (was_destroyed (op, tag)) {	1049	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 "	1050	}
1387	"leaving object\n", tmp->name, tmp->arch->name);
1388	}
1389	}
1390		1051
1391	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1052	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1392		1053
1393	if(tmp->above == tmp)	1054	if (tmp->above == tmp)
1394	tmp->above = NULL;	1055	tmp->above = 0;
1395	last=tmp;	1056
1396	}	1057	last = tmp;
		1058	}
		1059
1397	/* last == NULL of there are no objects on this space */	1060	/* last == NULL of there are no objects on this space */
1398	if (last==NULL) {	1061	if (!last)
1399	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1062	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	1063	else
1408	update_object(last, UP_OBJ_REMOVE);	1064	update_object (last, UP_OBJ_REMOVE);
1409		1065
1410	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1066	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1411	update_all_los(op->map, op->x, op->y);	1067	update_all_los (map, x, y);
1412		1068	}
1413	}	1069	}
1414		1070
1415	/*	1071	/*
1416	* merge_ob(op,top):	1072	* merge_ob(op,top):
1417	*	1073	*
1418	* This function goes through all objects below and including top, and	1074	* This function goes through all objects below and including top, and
1419	* merges op to the first matching object.	1075	* merges op to the first matching object.
1420	* If top is NULL, it is calculated.	1076	* If top is NULL, it is calculated.
1421	* Returns pointer to object if it succeded in the merge, otherwise NULL	1077	* Returns pointer to object if it succeded in the merge, otherwise NULL
1422	*/	1078	*/
1423		1079	object *
1424	object *merge_ob(object *op, object *top) {	1080	merge_ob (object *op, object *top)
		1081	{
1425	if(!op->nrof)	1082	if (!op->nrof)
1426	return 0;	1083	return 0;
1427	if(top==NULL)	1084
		1085	if (top)
1428	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1086	for (top = op; top && top->above; top = top->above)
		1087	;
		1088
1429	for(;top!=NULL;top=top->below) {	1089	for (; top; top = top->below)
		1090	{
1430	if(top==op)	1091	if (top == op)
1431	continue;	1092	continue;
1432	if (CAN_MERGE(op,top))	1093
1433	{	1094	if (object::can_merge (op, top))
		1095	{
1434	top->nrof+=op->nrof;	1096	top->nrof += op->nrof;
		1097
1435	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1098	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1436	op->weight = 0; /* Don't want any adjustements now */	1099	op->weight = 0; /* Don't want any adjustements now */
1437	remove_ob(op);	1100	op->destroy ();
1438	free_object(op);
1439	return top;	1101	return top;
1440	}	1102	}
1441	}	1103	}
		1104
1442	return NULL;	1105	return 0;
1443	}	1106	}
1444		1107
1445	/*	1108	/*
1446	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1109	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1447	* job preparing multi-part monsters	1110	* job preparing multi-part monsters
1448	*/	1111	*/
		1112	object *
1449	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1113	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1114	{
1450	object* tmp;	1115	object *tmp;
		1116
1451	if (op->head)	1117	if (op->head)
1452	op=op->head;	1118	op = op->head;
		1119
1453	for (tmp=op;tmp;tmp=tmp->more){	1120	for (tmp = op; tmp; tmp = tmp->more)
		1121	{
1454	tmp->x=x+tmp->arch->clone.x;	1122	tmp->x = x + tmp->arch->clone.x;
1455	tmp->y=y+tmp->arch->clone.y;	1123	tmp->y = y + tmp->arch->clone.y;
1456	}	1124	}
		1125
1457	return insert_ob_in_map (op, m, originator, flag);	1126	return insert_ob_in_map (op, m, originator, flag);
1458	}	1127	}
1459		1128
1460	/*	1129	/*
1461	* insert_ob_in_map (op, map, originator, flag):	1130	* insert_ob_in_map (op, map, originator, flag):
1462	* This function inserts the object in the two-way linked list	1131	* This function inserts the object in the two-way linked list
…		…
1475	* Return value:	1144	* Return value:
1476	* new object if 'op' was merged with other object	1145	* new object if 'op' was merged with other object
1477	* NULL if 'op' was destroyed	1146	* NULL if 'op' was destroyed
1478	* just 'op' otherwise	1147	* just 'op' otherwise
1479	*/	1148	*/
1480		1149	object *
1481	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1150	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1482	{	1151	{
1483	object *tmp, *top, *floor=NULL;	1152	object *tmp, *top, *floor = NULL;
1484	sint16 x,y;	1153	sint16 x, y;
1485		1154
1486	if (QUERY_FLAG (op, FLAG_FREED)) {	1155	if (QUERY_FLAG (op, FLAG_FREED))
		1156	{
1487	LOG (llevError, "Trying to insert freed object!\n");	1157	LOG (llevError, "Trying to insert freed object!\n");
1488	return NULL;	1158	return NULL;
		1159	}
		1160
		1161	if (m == NULL)
1489	}	1162	{
1490	if(m==NULL) {	1163	char *dump = dump_object (op);
1491	dump_object(op);
1492	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1164	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1493	return op;	1165	free (dump);
		1166	return op;
1494	}	1167	}
		1168
1495	if(out_of_map(m,op->x,op->y)) {	1169	if (out_of_map (m, op->x, op->y))
1496	dump_object(op);	1170	{
		1171	char *dump = dump_object (op);
1497	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1172	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1498	#ifdef MANY_CORES	1173	#ifdef MANY_CORES
1499	/* Better to catch this here, as otherwise the next use of this object	1174	/* 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	1175	* is likely to cause a crash. Better to find out where it is getting
1501	* improperly inserted.	1176	* improperly inserted.
1502	*/	1177	*/
1503	abort();	1178	abort ();
1504	#endif	1179	#endif
1505	return op;	1180	free (dump);
		1181	return op;
1506	}	1182	}
		1183
1507	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1184	if (!QUERY_FLAG (op, FLAG_REMOVED))
1508	dump_object(op);	1185	{
		1186	char *dump = dump_object (op);
1509	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1187	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1510	return op;	1188	free (dump);
		1189	return op;
		1190	}
		1191
		1192	if (op->more)
1511	}	1193	{
1512	if(op->more!=NULL) {
1513	/* The part may be on a different map. */	1194	/* The part may be on a different map. */
1514		1195
1515	object *more = op->more;	1196	object *more = op->more;
1516		1197
1517	/* We really need the caller to normalize coordinates - if	1198	/* We really need the caller to normalize coordinates - if
1518	* we set the map, that doesn't work if the location is within	1199	* 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	1200	* a map and this is straddling an edge. So only if coordinate
1520	* is clear wrong do we normalize it.	1201	* is clear wrong do we normalize it.
1521	*/	1202	*/
1522	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1203	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);	1204	more->map = get_map_from_coord (m, &more->x, &more->y);
1527	} else if (!more->map) {	1205	else if (!more->map)
		1206	{
1528	/* For backwards compatibility - when not dealing with tiled maps,	1207	/* For backwards compatibility - when not dealing with tiled maps,
1529	* more->map should always point to the parent.	1208	* more->map should always point to the parent.
1530	*/	1209	*/
1531	more->map = m;	1210	more->map = m;
1532	}	1211	}
1533		1212
1534	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1213	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1214	{
1535	if ( ! op->head)	1215	if (!op->head)
1536	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1216	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1537	return NULL;	1217
1538	}	1218	return 0;
		1219	}
1539	}	1220	}
		1221
1540	CLEAR_FLAG(op,FLAG_REMOVED);	1222	CLEAR_FLAG (op, FLAG_REMOVED);
1541		1223
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	1224	/* 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	1225	* of areas of callers (eg, anything that uses find_free_spot would now
1548	* need extra work	1226	* need extra work
1549	*/	1227	*/
1550	op->map=get_map_from_coord(m, &op->x, &op->y);	1228	op->map = get_map_from_coord (m, &op->x, &op->y);
1551	x = op->x;	1229	x = op->x;
1552	y = op->y;	1230	y = op->y;
1553		1231
1554	/* this has to be done after we translate the coordinates.	1232	/* this has to be done after we translate the coordinates.
1555	*/	1233	*/
1556	if(op->nrof && !(flag & INS_NO_MERGE)) {	1234	if (op->nrof && !(flag & INS_NO_MERGE))
1557	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1235	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1558	if (CAN_MERGE(op,tmp)) {	1236	if (object::can_merge (op, tmp))
1559	op->nrof+=tmp->nrof;	1237	{
1560	remove_ob(tmp);	1238	op->nrof += tmp->nrof;
1561	free_object(tmp);	1239	tmp->destroy ();
1562	}	1240	}
1563	}
1564		1241
1565	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1242	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1566	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1243	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1244
1567	if (!QUERY_FLAG(op, FLAG_ALIVE))	1245	if (!QUERY_FLAG (op, FLAG_ALIVE))
1568	CLEAR_FLAG(op, FLAG_NO_STEAL);	1246	CLEAR_FLAG (op, FLAG_NO_STEAL);
1569		1247
1570	if (flag & INS_BELOW_ORIGINATOR) {	1248	if (flag & INS_BELOW_ORIGINATOR)
		1249	{
1571	if (originator->map != op->map || originator->x != op->x ||	1250	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1572	originator->y != op->y) {	1251	{
1573	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1252	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1574	abort();	1253	abort ();
1575	}	1254	}
		1255
1576	op->above = originator;	1256	op->above = originator;
1577	op->below = originator->below;	1257	op->below = originator->below;
1578	if (op->below) op->below->above = op;	1258
1579	else SET_MAP_OB(op->map, op->x, op->y, op);	1259	if (op->below)
		1260	op->below->above = op;
		1261	else
		1262	op->ms ().bot = op;
		1263
1580	/* since *below* originator, no need to update top */	1264	/* since *below* originator, no need to update top */
1581	originator->below = op;	1265	originator->below = op;
1582	} else {	1266	}
		1267	else
		1268	{
1583	/* If there are other objects, then */	1269	/* If there are other objects, then */
1584	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1270	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1271	{
1585	object *last=NULL;	1272	object *last = NULL;
1586	/*	1273
		1274	/*
1587	* If there are multiple objects on this space, we do some trickier handling.	1275	* If there are multiple objects on this space, we do some trickier handling.
1588	* We've already dealt with merging if appropriate.	1276	* We've already dealt with merging if appropriate.
1589	* Generally, we want to put the new object on top. But if	1277	* Generally, we want to put the new object on top. But if
1590	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1278	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1591	* floor, we want to insert above that and no further.	1279	* floor, we want to insert above that and no further.
1592	* Also, if there are spell objects on this space, we stop processing	1280	* 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	1281	* 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	1282	* 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	1283	* when lots of spells are cast in one area. Currently, it is presumed
1596	* that flying non pickable objects are spell objects.	1284	* that flying non pickable objects are spell objects.
1597	*/	1285	*/
1598		1286
1599	while (top != NULL) {	1287	while (top != NULL)
1600	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||	1288	{
1601	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;	1289	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1602	if (QUERY_FLAG(top, FLAG_NO_PICK)	1290	floor = top;
1603	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))	1291
1604	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))	1292	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1605	{	1293	{
1606	/* We insert above top, so we want this object below this */	1294	/* We insert above top, so we want this object below this */
1607	top=top->below;	1295	top = top->below;
1608	break;	1296	break;
1609	}	1297	}
1610	last = top;	1298
1611	top = top->above;	1299	last = top;
1612	}	1300	top = top->above;
		1301	}
		1302
1613	/* Don't want top to be NULL, so set it to the last valid object */	1303	/* Don't want top to be NULL, so set it to the last valid object */
1614	top = last;	1304	top = last;
1615		1305
1616	/* We let update_position deal with figuring out what the space	1306	/* We let update_position deal with figuring out what the space
1617	* looks like instead of lots of conditions here.	1307	* looks like instead of lots of conditions here.
1618	* makes things faster, and effectively the same result.	1308	* makes things faster, and effectively the same result.
1619	*/	1309	*/
1620		1310
1621	/* Have object 'fall below' other objects that block view.	1311	/* Have object 'fall below' other objects that block view.
1622	* Unless those objects are exits, type 66	1312	* Unless those objects are exits, type 66
1623	* If INS_ON_TOP is used, don't do this processing	1313	* If INS_ON_TOP is used, don't do this processing
1624	* Need to find the object that in fact blocks view, otherwise	1314	* Need to find the object that in fact blocks view, otherwise
1625	* stacking is a bit odd.	1315	* stacking is a bit odd.
1626	*/	1316	*/
1627	if (!(flag & INS_ON_TOP) &&	1317	if (!(flag & INS_ON_TOP) &&
1628	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1318	(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)) {	1319	{
1630	for (last=top; last != floor; last=last->below)	1320	for (last = top; last != floor; last = last->below)
1631	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1321	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1322	break;
1632	/* Check to see if we found the object that blocks view,	1323	/* Check to see if we found the object that blocks view,
1633	* and make sure we have a below pointer for it so that	1324	* and make sure we have a below pointer for it so that
1634	* we can get inserted below this one, which requires we	1325	* we can get inserted below this one, which requires we
1635	* set top to the object below us.	1326	* set top to the object below us.
1636	*/	1327	*/
1637	if (last && last->below && last != floor) top=last->below;	1328	if (last && last->below && last != floor)
1638	}	1329	top = last->below;
1639	} /* If objects on this space */	1330	}
		1331	} /* If objects on this space */
		1332
1640	if (flag & INS_MAP_LOAD)	1333	if (flag & INS_MAP_LOAD)
1641	top = GET_MAP_TOP(op->map,op->x,op->y);	1334	top = GET_MAP_TOP (op->map, op->x, op->y);
		1335
1642	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1336	if (flag & INS_ABOVE_FLOOR_ONLY)
		1337	top = floor;
1643		1338
1644	/* Top is the object that our object (op) is going to get inserted above.	1339	/* Top is the object that our object (op) is going to get inserted above.
1645	*/	1340	*/
1646		1341
1647	/* First object on this space */	1342	/* First object on this space */
1648	if (!top) {	1343	if (!top)
		1344	{
1649	op->above = GET_MAP_OB(op->map, op->x, op->y);	1345	op->above = GET_MAP_OB (op->map, op->x, op->y);
1650	if (op->above) op->above->below = op;	1346
		1347	if (op->above)
		1348	op->above->below = op;
		1349
1651	op->below = NULL;	1350	op->below = NULL;
1652	SET_MAP_OB(op->map, op->x, op->y, op);	1351	op->ms ().bot = op;
1653	} else { /* get inserted into the stack above top */	1352	}
		1353	else
		1354	{ /* get inserted into the stack above top */
1654	op->above = top->above;	1355	op->above = top->above;
1655	if (op->above) op->above->below = op;	1356
		1357	if (op->above)
		1358	op->above->below = op;
		1359
1656	op->below = top;	1360	op->below = top;
1657	top->above = op;	1361	top->above = op;
1658	}	1362	}
		1363
1659	if (op->above==NULL)	1364	if (op->above == NULL)
1660	SET_MAP_TOP(op->map,op->x, op->y, op);	1365	op->ms ().top = op;
1661	} /* else not INS_BELOW_ORIGINATOR */	1366	} /* else not INS_BELOW_ORIGINATOR */
1662		1367
1663	if(op->type==PLAYER)	1368	if (op->type == PLAYER)
1664	op->contr->do_los=1;	1369	op->contr->do_los = 1;
1665		1370
1666	/* If we have a floor, we know the player, if any, will be above	1371	/* 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.	1372	* it, so save a few ticks and start from there.
1668	*/	1373	*/
1669	if (!(flag & INS_MAP_LOAD))	1374	if (!(flag & INS_MAP_LOAD))
1670	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1375	if (object *pl = op->ms ().player ())
1671	if (tmp->type == PLAYER)	1376	if (pl->contr->ns)
1672	tmp->contr->socket.update_look=1;	1377	pl->contr->ns->floorbox_update ();
1673	}
1674		1378
1675	/* If this object glows, it may affect lighting conditions that are	1379	/* If this object glows, it may affect lighting conditions that are
1676	* visible to others on this map. But update_all_los is really	1380	* 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	1381	* 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	1382	* on the map will get recalculated. The players could very well
1679	* be far away from this change and not affected in any way -	1383	* be far away from this change and not affected in any way -
1680	* this should get redone to only look for players within range,	1384	* this should get redone to only look for players within range,
1681	* or just updating the P_NEED_UPDATE for spaces within this area	1385	* or just updating the P_NEED_UPDATE for spaces within this area
1682	* of effect may be sufficient.	1386	* of effect may be sufficient.
1683	*/	1387	*/
1684	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1388	if (op->map->darkness && (op->glow_radius != 0))
1685	update_all_los(op->map, op->x, op->y);	1389	update_all_los (op->map, op->x, op->y);
1686		1390
1687
1688	/* updates flags (blocked, alive, no magic, etc) for this map space */	1391	/* updates flags (blocked, alive, no magic, etc) for this map space */
1689	update_object(op,UP_OBJ_INSERT);	1392	update_object (op, UP_OBJ_INSERT);
1690		1393
		1394	INVOKE_OBJECT (INSERT, op);
1691		1395
1692	/* Don't know if moving this to the end will break anything. However,	1396	/* 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.	1397	* we want to have floorbox_update called before calling this.
1694	*	1398	*
1695	* check_move_on() must be after this because code called from	1399	* check_move_on() must be after this because code called from
1696	* check_move_on() depends on correct map flags (so functions like	1400	* check_move_on() depends on correct map flags (so functions like
1697	* blocked() and wall() work properly), and these flags are updated by	1401	* blocked() and wall() work properly), and these flags are updated by
1698	* update_object().	1402	* update_object().
1699	*/	1403	*/
1700		1404
1701	/* if this is not the head or flag has been passed, don't check walk on status */	1405	/* 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) {	1406	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1407	{
1704	if (check_move_on(op, originator))	1408	if (check_move_on (op, originator))
1705	return NULL;	1409	return 0;
1706		1410
1707	/* If we are a multi part object, lets work our way through the check	1411	/* If we are a multi part object, lets work our way through the check
1708	* walk on's.	1412	* walk on's.
1709	*/	1413	*/
1710	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1414	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1711	if (check_move_on (tmp, originator))	1415	if (check_move_on (tmp, originator))
1712	return NULL;	1416	return 0;
1713	}	1417	}
		1418
1714	return op;	1419	return op;
1715	}	1420	}
1716		1421
1717	/* this function inserts an object in the map, but if it	1422	/* 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.	1423	* 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.	1424	* op is the object to insert it under: supplies x and the map.
1720	*/	1425	*/
		1426	void
1721	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1427	replace_insert_ob_in_map (const char *arch_string, object *op)
1722	object *tmp;	1428	{
1723	object *tmp1;	1429	object *tmp, *tmp1;
1724		1430
1725	/* first search for itself and remove any old instances */	1431	/* first search for itself and remove any old instances */
1726		1432
1727	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1433	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 */ {	1434	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1729	remove_ob(tmp);	1435	tmp->destroy ();
1730	free_object(tmp);
1731	}
1732	}
1733		1436
1734	tmp1=arch_to_object(find_archetype(arch_string));	1437	tmp1 = arch_to_object (archetype::find (arch_string));
1735		1438
1736		1439	tmp1->x = op->x;
1737	tmp1->x = op->x; tmp1->y = op->y;	1440	tmp1->y = op->y;
1738	insert_ob_in_map(tmp1,op->map,op,0);	1441	insert_ob_in_map (tmp1, op->map, op, 0);
1739	}	1442	}
1740		1443
1741	/*	1444	/*
1742	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1445	* 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	1446	* is returned contains nr objects, and the remaining parts contains
1744	* the rest (or is removed and freed if that number is 0).	1447	* the rest (or is removed and freed if that number is 0).
1745	* On failure, NULL is returned, and the reason put into the	1448	* On failure, NULL is returned, and the reason put into the
1746	* global static errmsg array.	1449	* global static errmsg array.
1747	*/	1450	*/
1748		1451
		1452	object *
1749	object *get_split_ob(object *orig_ob, uint32 nr) {	1453	get_split_ob (object *orig_ob, uint32 nr)
		1454	{
1750	object *newob;	1455	object *newob;
1751	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1456	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1752		1457
1753	if(orig_ob->nrof<nr) {	1458	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	}	1459	{
		1460	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
		1461	return NULL;
		1462	}
		1463
1758	newob = object_create_clone(orig_ob);	1464	newob = object_create_clone (orig_ob);
		1465
1759	if((orig_ob->nrof-=nr)<1) {	1466	if ((orig_ob->nrof -= nr) < 1)
1760	if ( ! is_removed)	1467	orig_ob->destroy (1);
1761	remove_ob(orig_ob);
1762	free_object2(orig_ob, 1);
1763	}
1764	else if ( ! is_removed) {	1468	else if (!is_removed)
		1469	{
1765	if(orig_ob->env!=NULL)	1470	if (orig_ob->env != NULL)
1766	sub_weight (orig_ob->env,orig_ob->weight*nr);	1471	sub_weight (orig_ob->env, orig_ob->weight * nr);
1767	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1472	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1473	{
1768	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1474	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");	1475	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1771	return NULL;	1476	return NULL;
1772	}	1477	}
1773	}	1478	}
		1479
1774	newob->nrof=nr;	1480	newob->nrof = nr;
1775		1481
1776	return newob;	1482	return newob;
1777	}	1483	}
1778		1484
1779	/*	1485	/*
1780	* decrease_ob_nr(object, number) decreases a specified number from	1486	* decrease_ob_nr(object, number) decreases a specified number from
1781	* the amount of an object. If the amount reaches 0, the object	1487	* the amount of an object. If the amount reaches 0, the object
1782	* is subsequently removed and freed.	1488	* is subsequently removed and freed.
1783	*	1489	*
1784	* Return value: 'op' if something is left, NULL if the amount reached 0	1490	* Return value: 'op' if something is left, NULL if the amount reached 0
1785	*/	1491	*/
1786		1492
		1493	object *
1787	object *decrease_ob_nr (object *op, uint32 i)	1494	decrease_ob_nr (object *op, uint32 i)
1788	{	1495	{
1789	object *tmp;	1496	object *tmp;
1790	player *pl;
1791		1497
1792	if (i == 0) /* objects with op->nrof require this check */	1498	if (i == 0) /* objects with op->nrof require this check */
1793	return op;	1499	return op;
1794		1500
1795	if (i > op->nrof)	1501	if (i > op->nrof)
1796	i = op->nrof;	1502	i = op->nrof;
1797		1503
1798	if (QUERY_FLAG (op, FLAG_REMOVED))	1504	if (QUERY_FLAG (op, FLAG_REMOVED))
		1505	op->nrof -= i;
		1506	else if (op->env)
		1507	{
		1508	/* is this object in the players inventory, or sub container
		1509	* therein?
		1510	*/
		1511	tmp = op->in_player ();
		1512	/* nope. Is this a container the player has opened?
		1513	* If so, set tmp to that player.
		1514	* IMO, searching through all the players will mostly
		1515	* likely be quicker than following op->env to the map,
		1516	* and then searching the map for a player.
		1517	*/
		1518	if (!tmp)
		1519	for_all_players (pl)
		1520	if (pl->ob->container == op->env)
		1521	{
		1522	tmp = pl->ob;
		1523	break;
		1524	}
		1525
		1526	if (i < op->nrof)
		1527	{
		1528	sub_weight (op->env, op->weight * i);
		1529	op->nrof -= i;
		1530	if (tmp)
		1531	esrv_send_item (tmp, op);
		1532	}
		1533	else
		1534	{
		1535	op->remove ();
		1536	op->nrof = 0;
		1537	if (tmp)
		1538	esrv_del_item (tmp->contr, op->count);
		1539	}
1799	{	1540	}
		1541	else
		1542	{
		1543	object *above = op->above;
		1544
		1545	if (i < op->nrof)
1800	op->nrof -= i;	1546	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 {	1547	else
		1548	{
1828	remove_ob (op);	1549	op->remove ();
1829	op->nrof = 0;	1550	op->nrof = 0;
1830	if (tmp) {
1831	esrv_del_item(tmp->contr, op->count);
1832	}
1833	}	1551	}
1834	}
1835	else
1836	{
1837	object *above = op->above;
1838		1552
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 */	1553	/* Since we just removed op, op->above is null */
1846	for (tmp = above; tmp != NULL; tmp = tmp->above)	1554	for (tmp = above; tmp; tmp = tmp->above)
1847	if (tmp->type == PLAYER) {	1555	if (tmp->type == PLAYER)
		1556	{
1848	if (op->nrof)	1557	if (op->nrof)
1849	esrv_send_item(tmp, op);	1558	esrv_send_item (tmp, op);
1850	else	1559	else
1851	esrv_del_item(tmp->contr, op->count);	1560	esrv_del_item (tmp->contr, op->count);
1852	}	1561	}
1853	}	1562	}
1854		1563
1855	if (op->nrof) {	1564	if (op->nrof)
1856	return op;	1565	return op;
1857	} else {	1566	else
1858	free_object (op);	1567	{
		1568	op->destroy ();
1859	return NULL;	1569	return 0;
1860	}	1570	}
1861	}	1571	}
1862		1572
1863	/*	1573	/*
1864	* add_weight(object, weight) adds the specified weight to an object,	1574	* add_weight(object, weight) adds the specified weight to an object,
1865	* and also updates how much the environment(s) is/are carrying.	1575	* and also updates how much the environment(s) is/are carrying.
1866	*/	1576	*/
1867		1577
		1578	void
1868	void add_weight (object *op, signed long weight) {	1579	add_weight (object *op, signed long weight)
		1580	{
1869	while (op!=NULL) {	1581	while (op != NULL)
		1582	{
1870	if (op->type == CONTAINER) {	1583	if (op->type == CONTAINER)
1871	weight=(signed long)(weight*(100-op->stats.Str)/100);	1584	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1872	}	1585
1873	op->carrying+=weight;	1586	op->carrying += weight;
1874	op=op->env;	1587	op = op->env;
1875	}	1588	}
1876	}	1589	}
1877		1590
		1591	object *
		1592	insert_ob_in_ob (object *op, object *where)
		1593	{
		1594	if (!where)
		1595	{
		1596	char *dump = dump_object (op);
		1597	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1598	free (dump);
		1599	return op;
		1600	}
		1601
		1602	if (where->head)
		1603	{
		1604	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1605	where = where->head;
		1606	}
		1607
		1608	return where->insert (op);
		1609	}
		1610
1878	/*	1611	/*
1879	* insert_ob_in_ob(op,environment):	1612	* env->insert (op)
1880	* This function inserts the object op in the linked list	1613	* This function inserts the object op in the linked list
1881	* inside the object environment.	1614	* inside the object environment.
1882	*	1615	*
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	1616	* The function returns now pointer to inserted item, and return value can
1889	* be != op, if items are merged. -Tero	1617	* be != op, if items are merged. -Tero
1890	*/	1618	*/
1891		1619
1892	object *insert_ob_in_ob(object *op,object *where) {	1620	object *
		1621	object::insert (object *op)
		1622	{
1893	object *tmp, *otmp;	1623	object *tmp, *otmp;
1894		1624
1895	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1625	if (!QUERY_FLAG (op, FLAG_REMOVED))
1896	dump_object(op);	1626	op->remove ();
1897	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1627
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) {	1628	if (op->more)
		1629	{
1911	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1630	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1912	op->name, op->count);
1913	return op;	1631	return op;
1914	}	1632	}
		1633
1915	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1634	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1916	CLEAR_FLAG(op, FLAG_REMOVED);	1635	CLEAR_FLAG (op, FLAG_REMOVED);
1917	if(op->nrof) {	1636	if (op->nrof)
		1637	{
1918	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1638	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1919	if ( CAN_MERGE(tmp,op) ) {	1639	if (object::can_merge (tmp, op))
		1640	{
1920	/* return the original object and remove inserted object	1641	/* return the original object and remove inserted object
1921	(client needs the original object) */	1642	(client needs the original object) */
1922	tmp->nrof += op->nrof;	1643	tmp->nrof += op->nrof;
1923	/* Weight handling gets pretty funky. Since we are adding to	1644	/* Weight handling gets pretty funky. Since we are adding to
1924	* tmp->nrof, we need to increase the weight.	1645	* tmp->nrof, we need to increase the weight.
1925	*/	1646	*/
1926	add_weight (where, op->weight*op->nrof);	1647	add_weight (this, op->weight * op->nrof);
1927	SET_FLAG(op, FLAG_REMOVED);	1648	SET_FLAG (op, FLAG_REMOVED);
1928	free_object(op); /* free the inserted object */	1649	op->destroy (); /* free the inserted object */
1929	op = tmp;	1650	op = tmp;
1930	remove_ob (op); /* and fix old object's links */	1651	op->remove (); /* and fix old object's links */
1931	CLEAR_FLAG(op, FLAG_REMOVED);	1652	CLEAR_FLAG (op, FLAG_REMOVED);
1932	break;	1653	break;
1933	}	1654	}
1934		1655
1935	/* I assume combined objects have no inventory	1656	/* I assume combined objects have no inventory
1936	* We add the weight - this object could have just been removed	1657	* We add the weight - this object could have just been removed
1937	* (if it was possible to merge). calling remove_ob will subtract	1658	* (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	1659	* the weight, so we need to add it in again, since we actually do
1939	* the linking below	1660	* the linking below
1940	*/	1661	*/
1941	add_weight (where, op->weight*op->nrof);	1662	add_weight (this, op->weight * op->nrof);
		1663	}
1942	} else	1664	else
1943	add_weight (where, (op->weight+op->carrying));	1665	add_weight (this, (op->weight + op->carrying));
1944		1666
1945	otmp=is_player_inv(where);	1667	otmp = this->in_player ();
1946	if (otmp&&otmp->contr!=NULL) {	1668	if (otmp && otmp->contr)
1947	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1669	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1948	fix_player(otmp);	1670	otmp->update_stats ();
1949	}
1950		1671
1951	op->map=NULL;	1672	op->map = 0;
1952	op->env=where;	1673	op->env = this;
1953	op->above=NULL;	1674	op->above = 0;
1954	op->below=NULL;	1675	op->below = 0;
1955	op->x=0,op->y=0;	1676	op->x = 0, op->y = 0;
1956	op->ox=0,op->oy=0;
1957		1677
1958	/* reset the light list and los of the players on the map */	1678	/* reset the light list and los of the players on the map */
1959	if((op->glow_radius!=0)&&where->map)	1679	if ((op->glow_radius != 0) && map)
1960	{	1680	{
1961	#ifdef DEBUG_LIGHTS	1681	#ifdef DEBUG_LIGHTS
1962	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1682	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1963	op->name);
1964	#endif /* DEBUG_LIGHTS */	1683	#endif /* DEBUG_LIGHTS */
1965	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1684	if (map->darkness)
		1685	update_all_los (map, x, y);
1966	}	1686	}
1967		1687
1968	/* Client has no idea of ordering so lets not bother ordering it here.	1688	/* Client has no idea of ordering so lets not bother ordering it here.
1969	* It sure simplifies this function...	1689	* It sure simplifies this function...
1970	*/	1690	*/
1971	if (where->inv==NULL)	1691	if (!inv)
1972	where->inv=op;	1692	inv = op;
1973	else {	1693	else
		1694	{
1974	op->below = where->inv;	1695	op->below = inv;
1975	op->below->above = op;	1696	op->below->above = op;
1976	where->inv = op;	1697	inv = op;
1977	}	1698	}
		1699
		1700	INVOKE_OBJECT (INSERT, this);
		1701
1978	return op;	1702	return op;
1979	}	1703	}
1980		1704
1981	/*	1705	/*
1982	* Checks if any objects has a move_type that matches objects	1706	* Checks if any objects has a move_type that matches objects
…		…
1997	* MSW 2001-07-08: Check all objects on space, not just those below	1721	* 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	1722	* object being inserted. insert_ob_in_map may not put new objects
1999	* on top.	1723	* on top.
2000	*/	1724	*/
2001		1725
		1726	int
2002	int check_move_on (object *op, object *originator)	1727	check_move_on (object *op, object *originator)
2003	{	1728	{
2004	object *tmp;	1729	object *tmp;
2005	tag_t tag;
2006	mapstruct *m=op->map;	1730	maptile *m = op->map;
2007	int x=op->x, y=op->y;	1731	int x = op->x, y = op->y;
		1732
2008	MoveType move_on, move_slow, move_block;	1733	MoveType move_on, move_slow, move_block;
2009		1734
2010	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1735	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;	1736	return 0;
		1737
		1738	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1739	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		1740	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		1741
		1742	/* if nothing on this space will slow op down or be applied,
		1743	* no need to do checking below. have to make sure move_type
		1744	* is set, as lots of objects don't have it set - we treat that
		1745	* as walking.
		1746	*/
		1747	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		1748	return 0;
		1749
		1750	/* This is basically inverse logic of that below - basically,
		1751	* if the object can avoid the move on or slow move, they do so,
		1752	* but can't do it if the alternate movement they are using is
		1753	* blocked. Logic on this seems confusing, but does seem correct.
		1754	*/
		1755	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		1756	return 0;
		1757
		1758	/* The objects have to be checked from top to bottom.
		1759	* Hence, we first go to the top:
		1760	*/
		1761
		1762	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above)
		1763	{
		1764	/* Trim the search when we find the first other spell effect
		1765	* this helps performance so that if a space has 50 spell objects,
		1766	* we don't need to check all of them.
		1767	*/
		1768	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1769	break;
		1770	}
		1771
		1772	for (; tmp; tmp = tmp->below)
		1773	{
		1774	if (tmp == op)
		1775	continue; /* Can't apply yourself */
		1776
		1777	/* Check to see if one of the movement types should be slowed down.
		1778	* Second check makes sure that the movement types not being slowed
		1779	* (~slow_move) is not blocked on this space - just because the
		1780	* space doesn't slow down swimming (for example), if you can't actually
		1781	* swim on that space, can't use it to avoid the penalty.
		1782	*/
		1783	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1784	{
		1785	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		1786	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1787	{
		1788
		1789	float
		1790	diff = tmp->move_slow_penalty * FABS (op->speed);
		1791
		1792	if (op->type == PLAYER)
		1793	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		1794	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		1795	diff /= 4.0;
		1796
		1797	op->speed_left -= diff;
		1798	}
		1799	}
		1800
		1801	/* Basically same logic as above, except now for actual apply. */
		1802	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		1803	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		1804	{
		1805	move_apply (tmp, op, originator);
		1806
		1807	if (op->destroyed ())
		1808	return 1;
		1809
		1810	/* what the person/creature stepped onto has moved the object
		1811	* someplace new. Don't process any further - if we did,
		1812	* have a feeling strange problems would result.
		1813	*/
		1814	if (op->map != m || op->x != x || op->y != y)
		1815	return 0;
		1816	}
		1817	}
		1818
		1819	return 0;
2091	}	1820	}
2092		1821
2093	/*	1822	/*
2094	* present_arch(arch, map, x, y) searches for any objects with	1823	* present_arch(arch, map, x, y) searches for any objects with
2095	* a matching archetype at the given map and coordinates.	1824	* a matching archetype at the given map and coordinates.
2096	* The first matching object is returned, or NULL if none.	1825	* The first matching object is returned, or NULL if none.
2097	*/	1826	*/
2098		1827	object *
2099	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1828	present_arch (const archetype *at, maptile *m, int x, int y)
2100	object *tmp;	1829	{
2101	if(m==NULL || out_of_map(m,x,y)) {	1830	if (m == NULL || out_of_map (m, x, y))
		1831	{
2102	LOG(llevError,"Present_arch called outside map.\n");	1832	LOG (llevError, "Present_arch called outside map.\n");
2103	return NULL;	1833	return NULL;
2104	}	1834	}
		1835
2105	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1836	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2106	if(tmp->arch == at)	1837	if (tmp->arch == at)
2107	return tmp;	1838	return tmp;
		1839
2108	return NULL;	1840	return NULL;
2109	}	1841	}
2110		1842
2111	/*	1843	/*
2112	* present(type, map, x, y) searches for any objects with	1844	* present(type, map, x, y) searches for any objects with
2113	* a matching type variable at the given map and coordinates.	1845	* a matching type variable at the given map and coordinates.
2114	* The first matching object is returned, or NULL if none.	1846	* The first matching object is returned, or NULL if none.
2115	*/	1847	*/
2116		1848	object *
2117	object *present(unsigned char type,mapstruct *m, int x,int y) {	1849	present (unsigned char type, maptile *m, int x, int y)
2118	object *tmp;	1850	{
2119	if(out_of_map(m,x,y)) {	1851	if (out_of_map (m, x, y))
		1852	{
2120	LOG(llevError,"Present called outside map.\n");	1853	LOG (llevError, "Present called outside map.\n");
2121	return NULL;	1854	return NULL;
2122	}	1855	}
		1856
2123	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1857	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2124	if(tmp->type==type)	1858	if (tmp->type == type)
2125	return tmp;	1859	return tmp;
		1860
2126	return NULL;	1861	return NULL;
2127	}	1862	}
2128		1863
2129	/*	1864	/*
2130	* present_in_ob(type, object) searches for any objects with	1865	* present_in_ob(type, object) searches for any objects with
2131	* a matching type variable in the inventory of the given object.	1866	* a matching type variable in the inventory of the given object.
2132	* The first matching object is returned, or NULL if none.	1867	* The first matching object is returned, or NULL if none.
2133	*/	1868	*/
2134		1869	object *
2135	object *present_in_ob(unsigned char type, const object *op) {	1870	present_in_ob (unsigned char type, const object *op)
2136	object *tmp;	1871	{
2137	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1872	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2138	if(tmp->type==type)	1873	if (tmp->type == type)
2139	return tmp;	1874	return tmp;
		1875
2140	return NULL;	1876	return NULL;
2141	}	1877	}
2142		1878
2143	/*	1879	/*
2144	* present_in_ob (type, str, object) searches for any objects with	1880	* present_in_ob (type, str, object) searches for any objects with
…		…
2152	* str is the string to match against. Note that we match against	1888	* 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	1889	* 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	1890	* spell code can use one object type (force), but change it's name
2155	* to be unique.	1891	* to be unique.
2156	*/	1892	*/
2157		1893	object *
2158	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1894	present_in_ob_by_name (int type, const char *str, const object *op)
2159	object *tmp;	1895	{
2160
2161	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1896	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2162	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1897	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2163	return tmp;	1898	return tmp;
2164	}	1899
2165	return NULL;	1900	return 0;
2166	}	1901	}
2167		1902
2168	/*	1903	/*
2169	* present_arch_in_ob(archetype, object) searches for any objects with	1904	* present_arch_in_ob(archetype, object) searches for any objects with
2170	* a matching archetype in the inventory of the given object.	1905	* a matching archetype in the inventory of the given object.
2171	* The first matching object is returned, or NULL if none.	1906	* The first matching object is returned, or NULL if none.
2172	*/	1907	*/
2173		1908	object *
2174	object *present_arch_in_ob(const archetype *at, const object *op) {	1909	present_arch_in_ob (const archetype *at, const object *op)
2175	object *tmp;	1910	{
2176	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1911	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2177	if( tmp->arch == at)	1912	if (tmp->arch == at)
2178	return tmp;	1913	return tmp;
		1914
2179	return NULL;	1915	return NULL;
2180	}	1916	}
2181		1917
2182	/*	1918	/*
2183	* activate recursively a flag on an object inventory	1919	* activate recursively a flag on an object inventory
2184	*/	1920	*/
		1921	void
2185	void flag_inv(object*op, int flag){	1922	flag_inv (object *op, int flag)
2186	object *tmp;	1923	{
2187	if(op->inv)	1924	if (op->inv)
2188	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1925	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1926	{
2189	SET_FLAG(tmp, flag);	1927	SET_FLAG (tmp, flag);
2190	flag_inv(tmp,flag);	1928	flag_inv (tmp, flag);
2191	}	1929	}
		1930	}
		1931
2192	}/*	1932	/*
2193	* desactivate recursively a flag on an object inventory	1933	* deactivate recursively a flag on an object inventory
2194	*/	1934	*/
		1935	void
2195	void unflag_inv(object*op, int flag){	1936	unflag_inv (object *op, int flag)
2196	object *tmp;	1937	{
2197	if(op->inv)	1938	if (op->inv)
2198	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1939	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1940	{
2199	CLEAR_FLAG(tmp, flag);	1941	CLEAR_FLAG (tmp, flag);
2200	unflag_inv(tmp,flag);	1942	unflag_inv (tmp, flag);
2201	}	1943	}
2202	}	1944	}
2203		1945
2204	/*	1946	/*
2205	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1947	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2206	* all it's inventory (recursively).	1948	* all it's inventory (recursively).
2207	* If checksums are used, a player will get set_cheat called for	1949	* 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.	1950	* him/her-self and all object carried by a call to this function.
2209	*/	1951	*/
2210		1952	void
2211	void set_cheat(object *op) {	1953	set_cheat (object *op)
		1954	{
2212	SET_FLAG(op, FLAG_WAS_WIZ);	1955	SET_FLAG (op, FLAG_WAS_WIZ);
2213	flag_inv(op, FLAG_WAS_WIZ);	1956	flag_inv (op, FLAG_WAS_WIZ);
2214	}	1957	}
2215		1958
2216	/*	1959	/*
2217	* find_free_spot(object, map, x, y, start, stop) will search for	1960	* 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	1961	* 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	1975	* 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	1976	* 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	1977	* the archetype because that isn't correct if the monster has been
2235	* customized, changed states, etc.	1978	* customized, changed states, etc.
2236	*/	1979	*/
2237		1980	int
2238	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	1981	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		1982	{
2239	int i,index=0, flag;	1983	int index = 0, flag;
2240	static int altern[SIZEOFFREE];	1984	int altern[SIZEOFFREE];
2241		1985
2242	for(i=start;i<stop;i++) {	1986	for (int i = start; i < stop; i++)
		1987	{
2243	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	1988	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2244	if(!flag)	1989	if (!flag)
2245	altern[index++]=i;	1990	altern [index++] = i;
2246		1991
2247	/* Basically, if we find a wall on a space, we cut down the search size.	1992	/* 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.	1993	* 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 -	1994	* 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	1995	* 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	1996	* spaces in all the other directions, this will reduce the search space
2252	* to only the spaces immediately surrounding the target area, and	1997	* to only the spaces immediately surrounding the target area, and
2253	* won't look 2 spaces south of the target space.	1998	* won't look 2 spaces south of the target space.
2254	*/	1999	*/
2255	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2000	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2256	stop=maxfree[i];	2001	stop = maxfree[i];
2257	}	2002	}
2258	if(!index) return -1;	2003
		2004	if (!index)
		2005	return -1;
		2006
2259	return altern[RANDOM()%index];	2007	return altern[RANDOM () % index];
2260	}	2008	}
2261		2009
2262	/*	2010	/*
2263	* find_first_free_spot(archetype, mapstruct, x, y) works like	2011	* find_first_free_spot(archetype, maptile, x, y) works like
2264	* find_free_spot(), but it will search max number of squares.	2012	* find_free_spot(), but it will search max number of squares.
2265	* But it will return the first available spot, not a random choice.	2013	* 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.	2014	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2267	*/	2015	*/
2268		2016	int
2269	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2017	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2270	int i;	2018	{
2271	for(i=0;i<SIZEOFFREE;i++) {	2019	for (int i = 0; i < SIZEOFFREE; i++)
2272	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2020	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2273	return i;	2021	return i;
2274	}	2022
2275	return -1;	2023	return -1;
2276	}	2024	}
2277		2025
2278	/*	2026	/*
2279	* The function permute(arr, begin, end) randomly reorders the array	2027	* The function permute(arr, begin, end) randomly reorders the array
2280	* arr[begin..end-1].	2028	* arr[begin..end-1].
		2029	* now uses a fisher-yates shuffle, old permute was broken
2281	*/	2030	*/
		2031	static void
2282	static void permute(int *arr, int begin, int end)	2032	permute (int *arr, int begin, int end)
2283	{	2033	{
2284	int i, j, tmp, len;	2034	arr += begin;
		2035	end -= begin;
2285		2036
2286	len = end-begin;	2037	while (--end)
2287	for(i = begin; i < end; i++)	2038	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	}	2039	}
2296		2040
2297	/* new function to make monster searching more efficient, and effective!	2041	/* new function to make monster searching more efficient, and effective!
2298	* This basically returns a randomized array (in the passed pointer) of	2042	* 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	2043	* 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	2044	* 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	2045	* 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.	2046	* the 3x3 area will be searched, just not in a predictable order.
2303	*/	2047	*/
		2048	void
2304	void get_search_arr(int *search_arr)	2049	get_search_arr (int *search_arr)
2305	{	2050	{
2306	int i;	2051	int i;
2307		2052
2308	for(i = 0; i < SIZEOFFREE; i++)	2053	for (i = 0; i < SIZEOFFREE; i++)
2309	{
2310	search_arr[i] = i;	2054	search_arr[i] = i;
2311	}
2312		2055
2313	permute(search_arr, 1, SIZEOFFREE1+1);	2056	permute (search_arr, 1, SIZEOFFREE1 + 1);
2314	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2057	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2315	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2058	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2316	}	2059	}
2317		2060
2318	/*	2061	/*
2319	* find_dir(map, x, y, exclude) will search some close squares in the	2062	* find_dir(map, x, y, exclude) will search some close squares in the
2320	* given map at the given coordinates for live objects.	2063	* given map at the given coordinates for live objects.
…		…
2325	* Perhaps incorrectly, but I'm making the assumption that exclude	2068	* 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	2069	* 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	2070	* because we have to know what movement the thing looking to move
2328	* there is capable of.	2071	* there is capable of.
2329	*/	2072	*/
2330		2073	int
2331	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2074	find_dir (maptile *m, int x, int y, object *exclude)
		2075	{
2332	int i,max=SIZEOFFREE, mflags;	2076	int i, max = SIZEOFFREE, mflags;
		2077
2333	sint16 nx, ny;	2078	sint16 nx, ny;
2334	object *tmp;	2079	object *tmp;
2335	mapstruct *mp;	2080	maptile *mp;
		2081
2336	MoveType blocked, move_type;	2082	MoveType blocked, move_type;
2337		2083
2338	if (exclude && exclude->head) {	2084	if (exclude && exclude->head)
		2085	{
2339	exclude = exclude->head;	2086	exclude = exclude->head;
2340	move_type = exclude->move_type;	2087	move_type = exclude->move_type;
2341	} else {	2088	}
		2089	else
		2090	{
2342	/* If we don't have anything, presume it can use all movement types. */	2091	/* If we don't have anything, presume it can use all movement types. */
2343	move_type=MOVE_ALL;	2092	move_type = MOVE_ALL;
		2093	}
		2094
		2095	for (i = 1; i < max; i++)
2344	}	2096	{
2345		2097	mp = m;
2346	for(i=1;i<max;i++) {
2347	mp = m;
2348	nx = x + freearr_x[i];	2098	nx = x + freearr_x[i];
2349	ny = y + freearr_y[i];	2099	ny = y + freearr_y[i];
2350		2100
2351	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2101	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2102
2352	if (mflags & P_OUT_OF_MAP) {	2103	if (mflags & P_OUT_OF_MAP)
2353	max = maxfree[i];	2104	max = maxfree[i];
2354	} else {	2105	else
2355	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2106	{
		2107	mapspace &ms = mp->at (nx, ny);
2356		2108
		2109	blocked = ms.move_block;
		2110
2357	if ((move_type & blocked) == move_type) {	2111	if ((move_type & blocked) == move_type)
2358	max=maxfree[i];	2112	max = maxfree[i];
2359	} else if (mflags & P_IS_ALIVE) {	2113	else if (mflags & P_IS_ALIVE)
2360	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2114	{
2361	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2115	for (tmp = ms.bot; tmp; tmp = tmp->above)
		2116	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2362	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2117	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2363	break;	2118	break;
2364	}	2119
2365	}	2120	if (tmp)
2366	if(tmp) {
2367	return freedir[i];	2121	return freedir[i];
2368	}	2122	}
		2123	}
2369	}	2124	}
2370	}	2125
2371	}
2372	return 0;	2126	return 0;
2373	}	2127	}
2374		2128
2375	/*	2129	/*
2376	* distance(object 1, object 2) will return the square of the	2130	* distance(object 1, object 2) will return the square of the
2377	* distance between the two given objects.	2131	* distance between the two given objects.
2378	*/	2132	*/
2379		2133	int
2380	int distance(const object *ob1, const object *ob2) {	2134	distance (const object *ob1, const object *ob2)
2381	int i;	2135	{
2382	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2136	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	}	2137	}
2386		2138
2387	/*	2139	/*
2388	* find_dir_2(delta-x,delta-y) will return a direction in which	2140	* 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	2141	* an object which has subtracted the x and y coordinates of another
2390	* object, needs to travel toward it.	2142	* object, needs to travel toward it.
2391	*/	2143	*/
2392		2144	int
2393	int find_dir_2(int x, int y) {	2145	find_dir_2 (int x, int y)
		2146	{
2394	int q;	2147	int q;
2395		2148
2396	if(y)	2149	if (y)
2397	q=x*100/y;	2150	q = x * 100 / y;
2398	else if (x)	2151	else if (x)
2399	q= -300*x;	2152	q = -300 * x;
2400	else	2153	else
2401	return 0;	2154	return 0;
2402		2155
2403	if(y>0) {	2156	if (y > 0)
		2157	{
2404	if(q < -242)	2158	if (q < -242)
2405	return 3 ;	2159	return 3;
2406	if (q < -41)	2160	if (q < -41)
2407	return 2 ;	2161	return 2;
2408	if (q < 41)	2162	if (q < 41)
2409	return 1 ;	2163	return 1;
2410	if (q < 242)	2164	if (q < 242)
2411	return 8 ;	2165	return 8;
2412	return 7 ;	2166	return 7;
2413	}	2167	}
2414		2168
2415	if (q < -242)	2169	if (q < -242)
2416	return 7 ;	2170	return 7;
2417	if (q < -41)	2171	if (q < -41)
2418	return 6 ;	2172	return 6;
2419	if (q < 41)	2173	if (q < 41)
2420	return 5 ;	2174	return 5;
2421	if (q < 242)	2175	if (q < 242)
2422	return 4 ;	2176	return 4;
2423		2177
2424	return 3 ;	2178	return 3;
2425	}	2179	}
2426		2180
2427	/*	2181	/*
2428	* absdir(int): Returns a number between 1 and 8, which represent	2182	* absdir(int): Returns a number between 1 and 8, which represent
2429	* the "absolute" direction of a number (it actually takes care of	2183	* the "absolute" direction of a number (it actually takes care of
2430	* "overflow" in previous calculations of a direction).	2184	* "overflow" in previous calculations of a direction).
2431	*/	2185	*/
2432		2186
		2187	int
2433	int absdir(int d) {	2188	absdir (int d)
2434	while(d<1) d+=8;	2189	{
2435	while(d>8) d-=8;	2190	while (d < 1)
		2191	d += 8;
		2192
		2193	while (d > 8)
		2194	d -= 8;
		2195
2436	return d;	2196	return d;
2437	}	2197	}
2438		2198
2439	/*	2199	/*
2440	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2200	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2441	* between two directions (which are expected to be absolute (see absdir())	2201	* between two directions (which are expected to be absolute (see absdir())
2442	*/	2202	*/
2443		2203
		2204	int
2444	int dirdiff(int dir1, int dir2) {	2205	dirdiff (int dir1, int dir2)
		2206	{
2445	int d;	2207	int d;
		2208
2446	d = abs(dir1 - dir2);	2209	d = abs (dir1 - dir2);
2447	if(d>4)	2210	if (d > 4)
2448	d = 8 - d;	2211	d = 8 - d;
		2212
2449	return d;	2213	return d;
2450	}	2214	}
2451		2215
2452	/* peterm:	2216	/* peterm:
2453	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2217	* 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	2220	* 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.	2221	* 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	2222	* Moved from spell_util.c to object.c with the other related direction
2459	* functions.	2223	* functions.
2460	*/	2224	*/
2461
2462	int reduction_dir[SIZEOFFREE][3] = {	2225	int reduction_dir[SIZEOFFREE][3] = {
2463	{0,0,0}, /* 0 */	2226	{0, 0, 0}, /* 0 */
2464	{0,0,0}, /* 1 */	2227	{0, 0, 0}, /* 1 */
2465	{0,0,0}, /* 2 */	2228	{0, 0, 0}, /* 2 */
2466	{0,0,0}, /* 3 */	2229	{0, 0, 0}, /* 3 */
2467	{0,0,0}, /* 4 */	2230	{0, 0, 0}, /* 4 */
2468	{0,0,0}, /* 5 */	2231	{0, 0, 0}, /* 5 */
2469	{0,0,0}, /* 6 */	2232	{0, 0, 0}, /* 6 */
2470	{0,0,0}, /* 7 */	2233	{0, 0, 0}, /* 7 */
2471	{0,0,0}, /* 8 */	2234	{0, 0, 0}, /* 8 */
2472	{8,1,2}, /* 9 */	2235	{8, 1, 2}, /* 9 */
2473	{1,2,-1}, /* 10 */	2236	{1, 2, -1}, /* 10 */
2474	{2,10,12}, /* 11 */	2237	{2, 10, 12}, /* 11 */
2475	{2,3,-1}, /* 12 */	2238	{2, 3, -1}, /* 12 */
2476	{2,3,4}, /* 13 */	2239	{2, 3, 4}, /* 13 */
2477	{3,4,-1}, /* 14 */	2240	{3, 4, -1}, /* 14 */
2478	{4,14,16}, /* 15 */	2241	{4, 14, 16}, /* 15 */
2479	{5,4,-1}, /* 16 */	2242	{5, 4, -1}, /* 16 */
2480	{4,5,6}, /* 17 */	2243	{4, 5, 6}, /* 17 */
2481	{6,5,-1}, /* 18 */	2244	{6, 5, -1}, /* 18 */
2482	{6,20,18}, /* 19 */	2245	{6, 20, 18}, /* 19 */
2483	{7,6,-1}, /* 20 */	2246	{7, 6, -1}, /* 20 */
2484	{6,7,8}, /* 21 */	2247	{6, 7, 8}, /* 21 */
2485	{7,8,-1}, /* 22 */	2248	{7, 8, -1}, /* 22 */
2486	{8,22,24}, /* 23 */	2249	{8, 22, 24}, /* 23 */
2487	{8,1,-1}, /* 24 */	2250	{8, 1, -1}, /* 24 */
2488	{24,9,10}, /* 25 */	2251	{24, 9, 10}, /* 25 */
2489	{9,10,-1}, /* 26 */	2252	{9, 10, -1}, /* 26 */
2490	{10,11,-1}, /* 27 */	2253	{10, 11, -1}, /* 27 */
2491	{27,11,29}, /* 28 */	2254	{27, 11, 29}, /* 28 */
2492	{11,12,-1}, /* 29 */	2255	{11, 12, -1}, /* 29 */
2493	{12,13,-1}, /* 30 */	2256	{12, 13, -1}, /* 30 */
2494	{12,13,14}, /* 31 */	2257	{12, 13, 14}, /* 31 */
2495	{13,14,-1}, /* 32 */	2258	{13, 14, -1}, /* 32 */
2496	{14,15,-1}, /* 33 */	2259	{14, 15, -1}, /* 33 */
2497	{33,15,35}, /* 34 */	2260	{33, 15, 35}, /* 34 */
2498	{16,15,-1}, /* 35 */	2261	{16, 15, -1}, /* 35 */
2499	{17,16,-1}, /* 36 */	2262	{17, 16, -1}, /* 36 */
2500	{18,17,16}, /* 37 */	2263	{18, 17, 16}, /* 37 */
2501	{18,17,-1}, /* 38 */	2264	{18, 17, -1}, /* 38 */
2502	{18,19,-1}, /* 39 */	2265	{18, 19, -1}, /* 39 */
2503	{41,19,39}, /* 40 */	2266	{41, 19, 39}, /* 40 */
2504	{19,20,-1}, /* 41 */	2267	{19, 20, -1}, /* 41 */
2505	{20,21,-1}, /* 42 */	2268	{20, 21, -1}, /* 42 */
2506	{20,21,22}, /* 43 */	2269	{20, 21, 22}, /* 43 */
2507	{21,22,-1}, /* 44 */	2270	{21, 22, -1}, /* 44 */
2508	{23,22,-1}, /* 45 */	2271	{23, 22, -1}, /* 45 */
2509	{45,47,23}, /* 46 */	2272	{45, 47, 23}, /* 46 */
2510	{23,24,-1}, /* 47 */	2273	{23, 24, -1}, /* 47 */
2511	{24,9,-1}}; /* 48 */	2274	{24, 9, -1}
		2275	}; /* 48 */
2512		2276
2513	/* Recursive routine to step back and see if we can	2277	/* Recursive routine to step back and see if we can
2514	* find a path to that monster that we found. If not,	2278	* find a path to that monster that we found. If not,
2515	* we don't bother going toward it. Returns 1 if we	2279	* we don't bother going toward it. Returns 1 if we
2516	* can see a direct way to get it	2280	* can see a direct way to get it
2517	* Modified to be map tile aware -.MSW	2281	* Modified to be map tile aware -.MSW
2518	*/	2282	*/
2519		2283	int
2520
2521	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2284	can_see_monsterP (maptile *m, int x, int y, int dir)
		2285	{
2522	sint16 dx, dy;	2286	sint16 dx, dy;
2523	int mflags;	2287	int mflags;
2524		2288
		2289	if (dir < 0)
2525	if(dir<0) return 0; /* exit condition: invalid direction */	2290	return 0; /* exit condition: invalid direction */
2526		2291
2527	dx = x + freearr_x[dir];	2292	dx = x + freearr_x[dir];
2528	dy = y + freearr_y[dir];	2293	dy = y + freearr_y[dir];
2529		2294
2530	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2295	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2531		2296
2532	/* This functional arguably was incorrect before - it was	2297	/* This functional arguably was incorrect before - it was
2533	* checking for P_WALL - that was basically seeing if	2298	* checking for P_WALL - that was basically seeing if
2534	* we could move to the monster - this is being more	2299	* we could move to the monster - this is being more
2535	* literal on if we can see it. To know if we can actually	2300	* 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	2301	* move to the monster, we'd need the monster passed in or
2537	* at least its move type.	2302	* at least its move type.
2538	*/	2303	*/
2539	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2304	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2305	return 0;
2540		2306
2541	/* yes, can see. */	2307	/* yes, can see. */
2542	if(dir < 9) return 1;	2308	if (dir < 9)
		2309	return 1;
		2310
2543	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2311	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2544	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2312	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2545	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2313	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2546	}	2314	}
2547		2315
2548
2549
2550	/*	2316	/*
2551	* can_pick(picker, item): finds out if an object is possible to be	2317	* 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	2318	* picked up by the picker. Returnes 1 if it can be
2553	* picked up, otherwise 0.	2319	* picked up, otherwise 0.
2554	*	2320	*
…		…
2556	* core dumps if they do.	2322	* core dumps if they do.
2557	*	2323	*
2558	* Add a check so we can't pick up invisible objects (0.93.8)	2324	* Add a check so we can't pick up invisible objects (0.93.8)
2559	*/	2325	*/
2560		2326
		2327	int
2561	int can_pick(const object *who, const object *item) {	2328	can_pick (const object *who, const object *item)
		2329	{
2562	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2330	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2563	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2331	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2564	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2332	!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	}	2333	}
2567
2568		2334
2569	/*	2335	/*
2570	* create clone from object to another	2336	* create clone from object to another
2571	*/	2337	*/
		2338	object *
2572	object *object_create_clone (object *asrc) {	2339	object_create_clone (object *asrc)
		2340	{
2573	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2341	object *dst = 0, *tmp, *src, *part, *prev, *item;
2574		2342
2575	if(!asrc) return NULL;	2343	if (!asrc)
		2344	return 0;
		2345
2576	src = asrc;	2346	src = asrc;
2577	if(src->head)	2347	if (src->head)
2578	src = src->head;	2348	src = src->head;
2579		2349
2580	prev = NULL;	2350	prev = 0;
2581	for(part = src; part; part = part->more) {	2351	for (part = src; part; part = part->more)
2582	tmp = get_object();	2352	{
2583	copy_object(part,tmp);	2353	tmp = part->clone ();
2584	tmp->x -= src->x;	2354	tmp->x -= src->x;
2585	tmp->y -= src->y;	2355	tmp->y -= src->y;
		2356
2586	if(!part->head) {	2357	if (!part->head)
		2358	{
2587	dst = tmp;	2359	dst = tmp;
2588	tmp->head = NULL;
2589	} else {
2590	tmp->head = dst;	2360	tmp->head = 0;
2591	}	2361	}
		2362	else
		2363	tmp->head = dst;
		2364
2592	tmp->more = NULL;	2365	tmp->more = 0;
		2366
2593	if(prev)	2367	if (prev)
2594	prev->more = tmp;	2368	prev->more = tmp;
		2369
2595	prev = tmp;	2370	prev = tmp;
2596	}	2371	}
2597	/*** copy inventory ***/	2372
2598	for(item = src->inv; item; item = item->below) {	2373	for (item = src->inv; item; item = item->below)
2599	(void) insert_ob_in_ob(object_create_clone(item),dst);	2374	insert_ob_in_ob (object_create_clone (item), dst);
2600	}
2601		2375
2602	return dst;	2376	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	}	2377	}
2612		2378
2613	/* GROS - Creates an object using a string representing its content. */	2379	/* 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 */	2380	/* 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, */	2381	/* 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. */	2382	/* 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. */	2383	/* Remember not to use load_object_str in a time-critical situation. */
2618	/* Also remember that multiparts objects are not supported for now. */	2384	/* Also remember that multiparts objects are not supported for now. */
2619		2385	object *
2620	object* load_object_str(const char *obstr)	2386	load_object_str (const char *obstr)
2621	{	2387	{
2622	object *op;	2388	object *op;
2623	FILE *tempfile;
2624	char filename[MAX_BUF];	2389	char filename[MAX_BUF];
		2390
2625	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2391	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
		2392
2626	tempfile=fopen(filename,"w");	2393	FILE *tempfile = fopen (filename, "w");
		2394
2627	if (tempfile == NULL)	2395	if (tempfile == NULL)
2628	{	2396	{
2629	LOG(llevError,"Error - Unable to access load object temp file\n");	2397	LOG (llevError, "Error - Unable to access load object temp file\n");
2630	return NULL;	2398	return NULL;
2631	};	2399	}
		2400
2632	fprintf(tempfile,obstr);	2401	fprintf (tempfile, obstr);
2633	fclose(tempfile);	2402	fclose (tempfile);
2634		2403
2635	op=get_object();	2404	op = object::create ();
2636		2405
2637	tempfile=fopen(filename,"r");	2406	object_thawer thawer (filename);
2638	if (tempfile == NULL)	2407
2639	{	2408	if (thawer)
2640	LOG(llevError,"Error - Unable to read object temp file\n");	2409	load_object (thawer, op, 0);
2641	return NULL;	2410
2642	};
2643	load_object(tempfile,op,LO_NEWFILE,0);
2644	LOG(llevDebug," load str completed, object=%s\n",op->name);	2411	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2645	CLEAR_FLAG(op,FLAG_REMOVED);	2412	CLEAR_FLAG (op, FLAG_REMOVED);
2646	fclose(tempfile);	2413
2647	return op;	2414	return op;
2648	}	2415	}
2649		2416
2650	/* This returns the first object in who's inventory that	2417	/* This returns the first object in who's inventory that
2651	* has the same type and subtype match.	2418	* has the same type and subtype match.
2652	* returns NULL if no match.	2419	* returns NULL if no match.
2653	*/	2420	*/
		2421	object *
2654	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2422	find_obj_by_type_subtype (const object *who, int type, int subtype)
2655	{	2423	{
2656	object *tmp;
2657
2658	for (tmp=who->inv; tmp; tmp=tmp->below)	2424	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2659	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2425	if (tmp->type == type && tmp->subtype == subtype)
		2426	return tmp;
2660		2427
2661	return NULL;	2428	return 0;
2662	}	2429	}
2663		2430
2664	/* If ob has a field named key, return the link from the list,	2431	/* If ob has a field named key, return the link from the list,
2665	* otherwise return NULL.	2432	* otherwise return NULL.
2666	*	2433	*
2667	* key must be a passed in shared string - otherwise, this won't	2434	* key must be a passed in shared string - otherwise, this won't
2668	* do the desired thing.	2435	* do the desired thing.
2669	*/	2436	*/
		2437	key_value *
2670	key_value * get_ob_key_link(const object * ob, const char * key) {	2438	get_ob_key_link (const object *ob, const char *key)
2671	key_value * link;	2439	{
2672
2673	for (link = ob->key_values; link != NULL; link = link->next) {	2440	for (key_value *link = ob->key_values; link; link = link->next)
2674	if (link->key == key) {	2441	if (link->key == key)
2675	return link;	2442	return link;
2676	}	2443
2677	}	2444	return 0;
2678		2445	}
2679	return NULL;
2680	}
2681		2446
2682	/*	2447	/*
2683	* Returns the value of op has an extra_field for key, or NULL.	2448	* Returns the value of op has an extra_field for key, or NULL.
2684	*	2449	*
2685	* The argument doesn't need to be a shared string.	2450	* The argument doesn't need to be a shared string.
2686	*	2451	*
2687	* The returned string is shared.	2452	* The returned string is shared.
2688	*/	2453	*/
		2454	const char *
2689	const char * get_ob_key_value(const object * op, const char * const key) {	2455	get_ob_key_value (const object *op, const char *const key)
		2456	{
2690	key_value * link;	2457	key_value *link;
2691	const char * canonical_key;	2458	shstr_cmp canonical_key (key);
		2459
		2460	if (!canonical_key)
2692		2461	{
2693	canonical_key = find_string(key);
2694
2695	if (canonical_key == NULL) {
2696	/* 1. There being a field named key on any object	2462	/* 1. There being a field named key on any object
2697	* implies there'd be a shared string to find.	2463	* implies there'd be a shared string to find.
2698	* 2. Since there isn't, no object has this field.	2464	* 2. Since there isn't, no object has this field.
2699	* 3. Therefore, *this* object doesn't have this field.	2465	* 3. Therefore, *this* object doesn't have this field.
2700	*/	2466	*/
2701	return NULL;	2467	return 0;
2702	}	2468	}
2703		2469
2704	/* This is copied from get_ob_key_link() above -	2470	/* This is copied from get_ob_key_link() above -
2705	* only 4 lines, and saves the function call overhead.	2471	* only 4 lines, and saves the function call overhead.
2706	*/	2472	*/
2707	for (link = op->key_values; link != NULL; link = link->next) {	2473	for (link = op->key_values; link; link = link->next)
2708	if (link->key == canonical_key) {	2474	if (link->key == canonical_key)
2709	return link->value;	2475	return link->value;
2710	}	2476
2711	}	2477	return 0;
2712	return NULL;
2713	}	2478	}
2714		2479
2715		2480
2716	/*	2481	/*
2717	* Updates the canonical_key in op to value.	2482	* Updates the canonical_key in op to value.
…		…
2721	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2486	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2722	* keys.	2487	* keys.
2723	*	2488	*
2724	* Returns TRUE on success.	2489	* Returns TRUE on success.
2725	*/	2490	*/
		2491	int
2726	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2492	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2493	{
2727	key_value * field = NULL, *last=NULL;	2494	key_value *field = NULL, *last = NULL;
2728		2495
2729	for (field=op->key_values; field != NULL; field=field->next) {	2496	for (field = op->key_values; field != NULL; field = field->next)
2730	if (field->key != canonical_key) {
2731	last = field;
2732	continue;
2733	}
2734		2497	{
2735	if (field->value) FREE_AND_CLEAR_STR(field->value);	2498	if (field->key != canonical_key)
2736	if (value)	2499	{
2737	field->value = add_string(value);	2500	last = field;
2738	else {	2501	continue;
		2502	}
		2503
		2504	if (value)
		2505	field->value = value;
		2506	else
		2507	{
2739	/* Basically, if the archetype has this key set,	2508	/* Basically, if the archetype has this key set,
2740	* we need to store the null value so when we save	2509	* we need to store the null value so when we save
2741	* it, we save the empty value so that when we load,	2510	* it, we save the empty value so that when we load,
2742	* we get this value back again.	2511	* we get this value back again.
2743	*/	2512	*/
2744	if (get_ob_key_link(&op->arch->clone, canonical_key))	2513	if (get_ob_key_link (&op->arch->clone, canonical_key))
2745	field->value = NULL;	2514	field->value = 0;
2746	else {	2515	else
2747	/* Delete this link */	2516	{
2748	if (field->key) FREE_AND_CLEAR_STR(field->key);	2517	if (last)
2749	if (field->value) FREE_AND_CLEAR_STR(field->value);	2518	last->next = field->next;
2750	if (last) last->next = field->next;	2519	else
2751	else op->key_values = field->next;	2520	op->key_values = field->next;
2752	free(field);	2521
2753	}	2522	delete field;
2754	}	2523	}
		2524	}
2755	return TRUE;	2525	return TRUE;
2756	}	2526	}
2757	/* IF we get here, key doesn't exist */	2527	/* IF we get here, key doesn't exist */
2758		2528
2759	/* No field, we'll have to add it. */	2529	/* No field, we'll have to add it. */
2760		2530
2761	if (!add_key) {	2531	if (!add_key)
2762	return FALSE;	2532	return FALSE;
2763	}	2533
2764	/* There isn't any good reason to store a null	2534	/* There isn't any good reason to store a null
2765	* value in the key/value list. If the archetype has	2535	* value in the key/value list. If the archetype has
2766	* this key, then we should also have it, so shouldn't	2536	* this key, then we should also have it, so shouldn't
2767	* be here. If user wants to store empty strings,	2537	* be here. If user wants to store empty strings,
2768	* should pass in ""	2538	* should pass in ""
2769	*/	2539	*/
2770	if (value == NULL) return TRUE;	2540	if (value == NULL)
2771
2772	field = (key_value *) malloc(sizeof(key_value));
2773
2774	field->key = add_refcount(canonical_key);
2775	field->value = add_string(value);
2776	/* Usual prepend-addition. */
2777	field->next = op->key_values;
2778	op->key_values = field;
2779
2780	return TRUE;	2541	return TRUE;
		2542
		2543	field = new key_value;
		2544
		2545	field->key = canonical_key;
		2546	field->value = value;
		2547	/* Usual prepend-addition. */
		2548	field->next = op->key_values;
		2549	op->key_values = field;
		2550
		2551	return TRUE;
2781	}	2552	}
2782		2553
2783	/*	2554	/*
2784	* Updates the key in op to value.	2555	* Updates the key in op to value.
2785	*	2556	*
…		…
2787	* and not add new ones.	2558	* and not add new ones.
2788	* In general, should be little reason FALSE is ever passed in for add_key	2559	* In general, should be little reason FALSE is ever passed in for add_key
2789	*	2560	*
2790	* Returns TRUE on success.	2561	* Returns TRUE on success.
2791	*/	2562	*/
		2563	int
2792	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2564	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2793	const char * canonical_key = NULL;	2565	{
2794	int floating_ref = FALSE;	2566	shstr key_ (key);
2795	int ret;	2567
		2568	return set_ob_key_value_s (op, key_, value, add_key);
		2569	}
		2570
		2571	object::depth_iterator::depth_iterator (object *container)
		2572	: iterator_base (container)
		2573	{
		2574	while (item->inv)
		2575	item = item->inv;
		2576	}
		2577
		2578	void
		2579	object::depth_iterator::next ()
		2580	{
		2581	if (item->below)
2796		2582	{
2797	/* HACK This mess is to make sure set_ob_value() passes a shared string	2583	item = item->below;
2798	* to get_ob_key_link(), without leaving a leaked refcount.	2584
2799	*/	2585	while (item->inv)
		2586	item = item->inv;
2800		2587	}
2801	canonical_key = find_string(key);	2588	else
2802	if (canonical_key == NULL) {	2589	item = item->env;
2803	canonical_key = add_string(key);
2804	floating_ref = TRUE;
2805	}
2806
2807	ret = set_ob_key_value_s(op, canonical_key, value, add_key);
2808
2809	if (floating_ref) {
2810	free_string(canonical_key);
2811	}
2812
2813	return ret;
2814	}	2590	}
		2591
		2592	// return a suitable string describing an objetc in enough detail to find it
		2593	const char *
		2594	object::debug_desc (char *info) const
		2595	{
		2596	char info2[256 * 3];
		2597	char *p = info;
		2598
		2599	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2600	count,
		2601	&name,
		2602	title ? " " : "",
		2603	title ? (const char *)title : "");
		2604
		2605	if (env)
		2606	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2607
		2608	if (map)
		2609	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2610
		2611	return info;
		2612	}
		2613
		2614	const char *
		2615	object::debug_desc () const
		2616	{
		2617	static char info[256 * 3];
		2618	return debug_desc (info);
		2619	}
		2620

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