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

Comparing deliantra/server/common/object.C (file contents):
Revision 1.2 by root, Fri Aug 25 17:11:52 2006 UTC vs.
Revision 1.76 by root, Thu Dec 21 01:33:49 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.2 2006/08/25 17:11:52 root Exp $";
4	*/
5
6	/*	1	/*
7	CrossFire, A Multiplayer game for X-windows	2	CrossFire, A Multiplayer game for X-windows
8		3
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	5	Copyright (C) 1992 Frank Tore Johansen
…		…
21		16
22	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software	18	along with this program; if not, write to the Free Software
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25		20
26	The authors can be reached via e-mail at crossfire-devel@real-time.com	21	The authors can be reached via e-mail at <crossfire@schmorp.de>
27	*/	22	*/
28		23
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying	25	sub/add_weight will transcend the environment updating the carrying
31	variable. */	26	variable. */
32	#include <global.h>	27	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	28	#include <stdio.h>
35	#include <sys/types.h>	29	#include <sys/types.h>
36	#include <sys/uio.h>	30	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	31	#include <object.h>
39	#include <funcpoint.h>	32	#include <funcpoint.h>
40	#include <skills.h>
41	#include <loader.h>	33	#include <loader.h>
42	#ifdef MEMORY_DEBUG	34
43	int nroffreeobjects = 0;	35	#include <bitset>
		36
44	int nrofallocobjects = 0;	37	int nrofallocobjects = 0;
45	#undef OBJ_EXPAND	38	static UUID uuid;
46	#define OBJ_EXPAND 1	39	const uint64 UUID_SKIP = 1<<19;
47	#else
48	object objarray[STARTMAX]; /* All objects, allocated this way at first */
49	int nroffreeobjects = STARTMAX; /* How many OBs allocated and free (free) */
50	int nrofallocobjects = STARTMAX; /* How many OBs allocated (free + used) */
51	#endif
52		40
53	object *objects; /* Pointer to the list of used objects */
54	object *free_objects; /* Pointer to the list of unused objects */
55	object *active_objects; /* List of active objects that need to be processed */	41	object *active_objects; /* List of active objects that need to be processed */
56		42
57	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 != NULL; 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->flags ^ ob2->flags).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, 3);
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
		472	void object::clear ()
		473	{
		474	attachable_base::clear ();
579		475
580	/*
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	if (object_free_callback)
588	object_free_callback (op);
589
590	event *evt;
591	event *evt2;
592
593	/* redo this to be simpler/more efficient. Was also seeing
594	* crashes in the old code. Move this to the top - am
595	* seeing periodic crashes in this code, and would like to have
596	* as much info available as possible (eg, object name).
597	*/
598	for (evt = op->events; evt; evt=evt2) {
599	evt2 = evt->next;
600
601	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
602	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
603	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
604
605	free(evt);
606	}
607	op->events = NULL;
608
609	free_key_values(op);	476	free_key_values (this);
610		477
611	/* the memset will clear all these values for us, but we need	478	owner = 0;
612	* to reduce the refcount on them.	479	name = 0;
613	*/	480	name_pl = 0;
614	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);	481	title = 0;
615	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);	482	race = 0;
616	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);	483	slaying = 0;
617	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);	484	skill = 0;
618	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);	485	msg = 0;
619	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);	486	lore = 0;
620	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);	487	custom_name = 0;
621	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);	488	materialname = 0;
622	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);	489	contr = 0;
		490	below = 0;
		491	above = 0;
		492	inv = 0;
		493	container = 0;
		494	env = 0;
		495	more = 0;
		496	head = 0;
		497	map = 0;
		498	active_next = 0;
		499	active_prev = 0;
623		500
		501	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
624		502
625	memset((void*)op, 0, sizeof (object_special));
626	/* Below here, we clear things that are not done by the memset,
627	* or set default values that are not zero.
628	*/
629	/* This is more or less true */
630	SET_FLAG(op, FLAG_REMOVED);	503	SET_FLAG (this, FLAG_REMOVED);
631		504
632
633	op->contr = NULL;
634	op->below=NULL;
635	op->above=NULL;
636	op->inv=NULL;
637	op->events=NULL;
638	op->container=NULL;
639	op->env=NULL;
640	op->more=NULL;
641	op->head=NULL;
642	op->map=NULL;
643	op->refcount=0;
644	op->active_next = NULL;
645	op->active_prev = NULL;
646	/* What is not cleared is next, prev, and count */	505	/* What is not cleared is next, prev, and count */
647		506
648	op->expmul=1.0;	507	expmul = 1.0;
649	op->face = blank_face;	508	face = blank_face;
650	op->attacked_by_count = (tag_t) -1;	509
651	if (settings.casting_time)	510	if (settings.casting_time)
652	op->casting_time = -1;	511	casting_time = -1;
653
654	}	512	}
655		513
656	/*	514	/*
657	* copy object first frees everything allocated by the second object,	515	* copy_to first frees everything allocated by the dst object,
658	* and then copies the contends of the first object into the second	516	* and then copies the contents of itself into the second
659	* object, allocating what needs to be allocated. Basically, any	517	* object, allocating what needs to be allocated. Basically, any
660	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	518	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
661	* if the first object is freed, the pointers in the new object	519	* if the first object is freed, the pointers in the new object
662	* will point at garbage.	520	* will point at garbage.
663	*/	521	*/
		522	void
		523	object::copy_to (object *dst)
		524	{
		525	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
		526	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
664		527
665	void copy_object(object *op2, object *op) {	528	*(object_copy *)dst = *this;
666	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);	529	*(object_pod *)dst = *this;
667	event *evt, *evt2, *evt_new;
668		530
669	if (object_free_callback)	531	if (self || cb)
670	object_free_callback (op);	532	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
671		533
672	// callback registries and self are empty for copied objects	534	if (is_freed)
673	// this ought to change in the future	535	SET_FLAG (dst, FLAG_FREED);
674		536
675	/* Decrement the refcounts, but don't bother zeroing the fields;	537	if (is_removed)
676	they'll be overwritten by memcpy. */	538	SET_FLAG (dst, FLAG_REMOVED);
677	if(op->name!=NULL) free_string(op->name);
678	if(op->name_pl!=NULL) free_string(op->name_pl);
679	if(op->title!=NULL) free_string(op->title);
680	if(op->race!=NULL) free_string(op->race);
681	if(op->slaying!=NULL) free_string(op->slaying);
682	if(op->skill!=NULL) free_string(op->skill);
683	if(op->msg!=NULL) free_string(op->msg);
684	if(op->lore!=NULL) free_string(op->lore);
685	if(op->materialname != NULL) free_string(op->materialname);
686	if(op->custom_name != NULL) free_string(op->custom_name);
687		539
688	/* Basically, same code as from clear_object() */	540	if (speed < 0)
689	for (evt = op->events; evt; evt=evt2) {
690	evt2 = evt->next;
691
692	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
693	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
694	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
695
696	free(evt);
697	}
698	op->events = NULL;
699
700	free_key_values(op);
701
702	*(object_special *)op = *(object_special *)op2;
703
704	if(is_freed) SET_FLAG(op,FLAG_FREED);
705	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
706	if(op->name!=NULL) add_refcount(op->name);
707	if(op->name_pl!=NULL) add_refcount(op->name_pl);
708	if(op->title!=NULL) add_refcount(op->title);
709	if(op->race!=NULL) add_refcount(op->race);
710	if(op->slaying!=NULL) add_refcount(op->slaying);
711	if(op->skill!=NULL) add_refcount(op->skill);
712	if(op->lore!=NULL) add_refcount(op->lore);
713	if(op->msg!=NULL) add_refcount(op->msg);
714	if(op->custom_name!=NULL) add_refcount(op->custom_name);
715	if (op->materialname != NULL) add_refcount(op->materialname);
716
717	if((op2->speed<0) && !editor)
718	op->speed_left=op2->speed_left-RANDOM()%200/100.0;	541	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
719		542
720	/* Copy over event information */
721	evt2 = NULL;
722	for (evt = op2->events; evt; evt=evt->next) {
723	evt_new = (event *) malloc(sizeof(event));
724	memcpy(evt_new, evt, sizeof(event));
725	if (evt_new->hook) add_refcount(evt_new->hook);
726	if (evt_new->plugin) add_refcount(evt_new->plugin);
727	if (evt_new->options) add_refcount(evt_new->options);
728	evt_new->next = NULL;
729
730	/* Try to be a little clever here, and store away the
731	* last event we copied, so that its simpler to update the
732	* pointer.
733	*/
734	if (evt2)
735	evt2->next = evt_new;
736	else
737	op->events = evt_new;
738
739	evt2 = evt_new;
740	}
741	/* Copy over key_values, if any. */	543	/* Copy over key_values, if any. */
742	if (op2->key_values != NULL) {	544	if (key_values)
743	key_value * tail = NULL;	545	{
		546	key_value *tail = 0;
744	key_value * i;	547	key_value *i;
745		548
746	op->key_values = NULL;	549	dst->key_values = 0;
747		550
748	for (i = op2->key_values; i != NULL; i = i->next) {	551	for (i = key_values; i; i = i->next)
749	key_value * new_link = (key_value *) malloc(sizeof(key_value));	552	{
		553	key_value *new_link = new key_value;
750		554
751	new_link->next = NULL;	555	new_link->next = 0;
752	new_link->key = add_refcount(i->key);	556	new_link->key = i->key;
753	if (i->value)	557	new_link->value = i->value;
754	new_link->value = add_refcount(i->value);
755	else
756	new_link->value = NULL;
757		558
758	/* Try and be clever here, too. */	559	/* Try and be clever here, too. */
759	if (op->key_values == NULL) {	560	if (!dst->key_values)
760	op->key_values = new_link;	561	{
761	tail = new_link;	562	dst->key_values = new_link;
762	} else {	563	tail = new_link;
763	tail->next = new_link;	564	}
764	tail = new_link;	565	else
		566	{
		567	tail->next = new_link;
		568	tail = new_link;
		569	}
		570	}
765	}	571	}
766	}
767	}
768		572
769	update_ob_speed(op);	573	update_ob_speed (dst);
770	}	574	}
771		575
772	/*
773	* expand_objects() allocates more objects for the list of unused objects.
774	* It is called from get_object() if the unused list is empty.
775	*/
776
777	void expand_objects(void) {
778	int i;
779	object *obj;
780	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));
781
782	if(obj==NULL)
783	fatal(OUT_OF_MEMORY);
784	free_objects=obj;
785	obj[0].prev=NULL;
786	obj[0].next= &obj[1],
787	SET_FLAG(&(obj[0]), FLAG_REMOVED);
788	SET_FLAG(&(obj[0]), FLAG_FREED);
789
790	for(i=1;i<OBJ_EXPAND-1;i++) {
791	obj[i].next= &obj[i+1],
792	obj[i].prev= &obj[i-1],
793	SET_FLAG(&(obj[i]), FLAG_REMOVED);
794	SET_FLAG(&(obj[i]), FLAG_FREED);
795	}
796	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
797	obj[OBJ_EXPAND-1].next=NULL,
798	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
799	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
800
801	nrofallocobjects += OBJ_EXPAND;
802	nroffreeobjects += OBJ_EXPAND;
803	}
804
805	/*
806	* get_object() grabs an object from the list of unused objects, makes
807	* sure it is initialised, and returns it.
808	* If there are no free objects, expand_objects() is called to get more.
809	*/
810
811	object *get_object(void) {
812	object *op;	576	object *
813		577	object::clone ()
814	if(free_objects==NULL) {	578	{
815	expand_objects();	579	object *neu = create ();
816	}	580	copy_to (neu);
817	op=free_objects;
818	#ifdef MEMORY_DEBUG
819	/* The idea is hopefully by doing a realloc, the memory
820	* debugging program will now use the current stack trace to
821	* report leaks.
822	*/
823	op = realloc(op, sizeof(object));
824	SET_FLAG(op, FLAG_REMOVED);
825	SET_FLAG(op, FLAG_FREED);
826	#endif
827
828	if(!QUERY_FLAG(op,FLAG_FREED)) {
829	LOG(llevError,"Fatal: Getting busy object.\n");
830	}
831	free_objects=op->next;
832	if(free_objects!=NULL)
833	free_objects->prev=NULL;
834	op->count= ++ob_count;
835	op->name=NULL;
836	op->name_pl=NULL;
837	op->title=NULL;
838	op->race=NULL;
839	op->slaying=NULL;
840	op->skill = NULL;
841	op->lore=NULL;
842	op->msg=NULL;
843	op->materialname=NULL;
844	op->next=objects;
845	op->prev=NULL;
846	op->active_next = NULL;
847	op->active_prev = NULL;
848	if(objects!=NULL)
849	objects->prev=op;
850	objects=op;
851	clear_object(op);
852	SET_FLAG(op,FLAG_REMOVED);
853	nroffreeobjects--;
854	return op;	581	return neu;
855	}	582	}
856		583
857	/*	584	/*
858	* If an object with the IS_TURNABLE() flag needs to be turned due	585	* If an object with the IS_TURNABLE() flag needs to be turned due
859	* to the closest player being on the other side, this function can	586	* to the closest player being on the other side, this function can
860	* be called to update the face variable, _and_ how it looks on the map.	587	* be called to update the face variable, _and_ how it looks on the map.
861	*/	588	*/
862		589
		590	void
863	void update_turn_face(object *op) {	591	update_turn_face (object *op)
		592	{
864	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	593	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
865	return;	594	return;
866	SET_ANIMATION(op, op->direction);	595	SET_ANIMATION (op, op->direction);
867	update_object(op,UP_OBJ_FACE);	596	update_object (op, UP_OBJ_FACE);
868	}	597	}
869		598
870	/*	599	/*
871	* Updates the speed of an object. If the speed changes from 0 to another	600	* Updates the speed of an object. If the speed changes from 0 to another
872	* value, or vice versa, then add/remove the object from the active list.	601	* value, or vice versa, then add/remove the object from the active list.
873	* This function needs to be called whenever the speed of an object changes.	602	* This function needs to be called whenever the speed of an object changes.
874	*/	603	*/
875		604	void
876	void update_ob_speed(object *op) {	605	update_ob_speed (object *op)
		606	{
877	extern int arch_init;	607	extern int arch_init;
878		608
879	/* No reason putting the archetypes objects on the speed list,	609	/* No reason putting the archetypes objects on the speed list,
880	* since they never really need to be updated.	610	* since they never really need to be updated.
881	*/	611	*/
882		612
883	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	613	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		614	{
884	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	615	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
885	#ifdef MANY_CORES	616	#ifdef MANY_CORES
886	abort();	617	abort ();
887	#else	618	#else
888	op->speed = 0;	619	op->speed = 0;
889	#endif	620	#endif
890	}	621	}
		622
891	if (arch_init) {	623	if (arch_init)
892	return;
893	}
894	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
895	/* If already on active list, don't do anything */
896	if (op->active_next || op->active_prev || op==active_objects)
897	return;	624	return;
898		625
		626	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		627	{
		628	/* If already on active list, don't do anything */
		629	if (op->active_next || op->active_prev || op == active_objects)
		630	return;
		631
899	/* process_events() expects us to insert the object at the beginning	632	/* process_events() expects us to insert the object at the beginning
900	* of the list. */	633	* of the list. */
901	op->active_next = active_objects;	634	op->active_next = active_objects;
		635
902	if (op->active_next!=NULL)	636	if (op->active_next != NULL)
903	op->active_next->active_prev = op;	637	op->active_next->active_prev = op;
		638
904	active_objects = op;	639	active_objects = op;
		640	}
		641	else
905	}	642	{
906	else {
907	/* If not on the active list, nothing needs to be done */	643	/* If not on the active list, nothing needs to be done */
908	if (!op->active_next && !op->active_prev && op!=active_objects)	644	if (!op->active_next && !op->active_prev && op != active_objects)
909	return;	645	return;
910		646
911	if (op->active_prev==NULL) {	647	if (op->active_prev == NULL)
		648	{
912	active_objects = op->active_next;	649	active_objects = op->active_next;
		650
913	if (op->active_next!=NULL)	651	if (op->active_next != NULL)
914	op->active_next->active_prev = NULL;	652	op->active_next->active_prev = NULL;
915	}	653	}
916	else {	654	else
		655	{
917	op->active_prev->active_next = op->active_next;	656	op->active_prev->active_next = op->active_next;
		657
918	if (op->active_next)	658	if (op->active_next)
919	op->active_next->active_prev = op->active_prev;	659	op->active_next->active_prev = op->active_prev;
920	}	660	}
		661
921	op->active_next = NULL;	662	op->active_next = NULL;
922	op->active_prev = NULL;	663	op->active_prev = NULL;
923	}	664	}
924	}	665	}
925		666
926	/* This function removes object 'op' from the list of active	667	/* This function removes object 'op' from the list of active
927	* objects.	668	* objects.
…		…
929	* reference maps where you don't want an object that isn't	670	* reference maps where you don't want an object that isn't
930	* in play chewing up cpu time getting processed.	671	* in play chewing up cpu time getting processed.
931	* The reverse of this is to call update_ob_speed, which	672	* The reverse of this is to call update_ob_speed, which
932	* will do the right thing based on the speed of the object.	673	* will do the right thing based on the speed of the object.
933	*/	674	*/
		675	void
934	void remove_from_active_list(object *op)	676	remove_from_active_list (object *op)
935	{	677	{
936	/* If not on the active list, nothing needs to be done */	678	/* If not on the active list, nothing needs to be done */
937	if (!op->active_next && !op->active_prev && op!=active_objects)	679	if (!op->active_next && !op->active_prev && op != active_objects)
938	return;	680	return;
939		681
940	if (op->active_prev==NULL) {	682	if (op->active_prev == NULL)
		683	{
941	active_objects = op->active_next;	684	active_objects = op->active_next;
942	if (op->active_next!=NULL)	685	if (op->active_next != NULL)
943	op->active_next->active_prev = NULL;	686	op->active_next->active_prev = NULL;
		687	}
		688	else
944	}	689	{
945	else {
946	op->active_prev->active_next = op->active_next;	690	op->active_prev->active_next = op->active_next;
947	if (op->active_next)	691	if (op->active_next)
948	op->active_next->active_prev = op->active_prev;	692	op->active_next->active_prev = op->active_prev;
949	}	693	}
950	op->active_next = NULL;	694	op->active_next = NULL;
951	op->active_prev = NULL;	695	op->active_prev = NULL;
952	}	696	}
953		697
954	/*	698	/*
955	* update_object() updates the array which represents the map.	699	* update_object() updates the the map.
956	* It takes into account invisible objects (and represent squares covered	700	* It takes into account invisible objects (and represent squares covered
957	* by invisible objects by whatever is below them (unless it's another	701	* by invisible objects by whatever is below them (unless it's another
958	* invisible object, etc...)	702	* invisible object, etc...)
959	* If the object being updated is beneath a player, the look-window	703	* If the object being updated is beneath a player, the look-window
960	* of that player is updated (this might be a suboptimal way of	704	* of that player is updated (this might be a suboptimal way of
961	* updating that window, though, since update_object() is called _often_)	705	* updating that window, though, since update_object() is called _often_)
962	*	706	*
963	* action is a hint of what the caller believes need to be done.	707	* action is a hint of what the caller believes need to be done.
964	* For example, if the only thing that has changed is the face (due to
965	* an animation), we don't need to call update_position until that actually
966	* comes into view of a player. OTOH, many other things, like addition/removal
967	* of walls or living creatures may need us to update the flags now.
968	* current action are:	708	* current action are:
969	* UP_OBJ_INSERT: op was inserted	709	* UP_OBJ_INSERT: op was inserted
970	* UP_OBJ_REMOVE: op was removed	710	* UP_OBJ_REMOVE: op was removed
971	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	711	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
972	* as that is easier than trying to look at what may have changed.	712	* as that is easier than trying to look at what may have changed.
973	* UP_OBJ_FACE: only the objects face has changed.	713	* UP_OBJ_FACE: only the objects face has changed.
974	*/	714	*/
975		715	void
976	void update_object(object *op, int action) {	716	update_object (object *op, int action)
977	int update_now=0, flags;	717	{
978	MoveType move_on, move_off, move_block, move_slow;	718	MoveType move_on, move_off, move_block, move_slow;
979		719
980	if (op == NULL) {	720	if (op == NULL)
		721	{
981	/* this should never happen */	722	/* this should never happen */
982	LOG(llevDebug,"update_object() called for NULL object.\n");	723	LOG (llevDebug, "update_object() called for NULL object.\n");
983	return;	724	return;
984	}
985		725	}
986	if(op->env!=NULL) {	726
		727	if (op->env)
		728	{
987	/* Animation is currently handled by client, so nothing	729	/* Animation is currently handled by client, so nothing
988	* to do in this case.	730	* to do in this case.
989	*/	731	*/
990	return;	732	return;
991	}	733	}
992		734
993	/* If the map is saving, don't do anything as everything is	735	/* If the map is saving, don't do anything as everything is
994	* going to get freed anyways.	736	* going to get freed anyways.
995	*/	737	*/
996	if (!op->map || op->map->in_memory == MAP_SAVING) return;	738	if (!op->map || op->map->in_memory == MAP_SAVING)
997		739	return;
		740
998	/* make sure the object is within map boundaries */	741	/* make sure the object is within map boundaries */
999	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	742	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))
1000	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	743	{
1001	LOG(llevError,"update_object() called for object out of map!\n");	744	LOG (llevError, "update_object() called for object out of map!\n");
1002	#ifdef MANY_CORES	745	#ifdef MANY_CORES
1003	abort();	746	abort ();
1004	#endif	747	#endif
1005	return;	748	return;
1006	}
1007		749	}
1008	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
1009	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
1010	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
1011	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
1012	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
1013	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
1014		750
		751	mapspace &m = op->ms ();
		752
		753	if (m.flags_ & P_NEED_UPDATE)
		754	/* nop */;
1015	if (action == UP_OBJ_INSERT) {	755	else if (action == UP_OBJ_INSERT)
		756	{
		757	// this is likely overkill, TODO: revisit (schmorp)
1016	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	758	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
1017	update_now=1;
1018
1019	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	759	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
1020	update_now=1;	760	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
1021		761	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		762	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
1022	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	763	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
1023	update_now=1;	764	|| (m.move_on | op->move_on ) != m.move_on
1024		765	|| (m.move_off | op->move_off ) != m.move_off
1025	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	766	|| (m.move_slow | op->move_slow) != m.move_slow
1026	update_now=1;
1027
1028	if ((move_on | op->move_on) != move_on) update_now=1;
1029	if ((move_off | op->move_off) != move_off) update_now=1;
1030	/* This isn't perfect, but I don't expect a lot of objects to	767	/* This isn't perfect, but I don't expect a lot of objects to
1031	* to have move_allow right now.	768	* to have move_allow right now.
1032	*/	769	*/
1033	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	770	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
1034	update_now=1;	771	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
1035	if ((move_slow | op->move_slow) != move_slow) update_now=1;	772	m.flags_ = P_NEED_UPDATE;
1036	}	773	}
1037	/* if the object is being removed, we can't make intelligent	774	/* if the object is being removed, we can't make intelligent
1038	* decisions, because remove_ob can't really pass the object	775	* decisions, because remove_ob can't really pass the object
1039	* that is being removed.	776	* that is being removed.
1040	*/	777	*/
1041	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	778	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1042	update_now=1;	779	m.flags_ = P_NEED_UPDATE;
1043	} else if (action == UP_OBJ_FACE) {	780	else if (action == UP_OBJ_FACE)
1044	/* Nothing to do for that case */	781	/* Nothing to do for that case */ ;
1045	}
1046	else {	782	else
1047	LOG(llevError,"update_object called with invalid action: %d\n", action);	783	LOG (llevError, "update_object called with invalid action: %d\n", action);
1048	}
1049		784
1050	if (update_now) {
1051	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1052	update_position(op->map, op->x, op->y);
1053	}
1054
1055	if(op->more!=NULL)	785	if (op->more)
1056	update_object(op->more, action);	786	update_object (op->more, action);
1057	}	787	}
1058		788
		789	object::vector object::mortals;
		790	object::vector object::objects; // not yet used
		791	object *object::first;
		792
		793	void object::free_mortals ()
		794	{
		795	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
		796	if ((*i)->refcnt)
		797	++i; // further delay freeing
		798	else
		799	{
		800	delete *i;
		801	mortals.erase (i);
		802	}
		803	}
		804
		805	object::object ()
		806	{
		807	SET_FLAG (this, FLAG_REMOVED);
		808
		809	expmul = 1.0;
		810	face = blank_face;
		811	}
		812
		813	object::~object ()
		814	{
		815	free_key_values (this);
		816	}
		817
		818	void object::link ()
		819	{
		820	count = ++ob_count;
		821	uuid = gen_uuid ();
		822
		823	prev = 0;
		824	next = object::first;
		825
		826	if (object::first)
		827	object::first->prev = this;
		828
		829	object::first = this;
		830	}
		831
		832	void object::unlink ()
		833	{
		834	if (this == object::first)
		835	object::first = next;
		836
		837	/* Remove this object from the list of used objects */
		838	if (prev) prev->next = next;
		839	if (next) next->prev = prev;
		840
		841	prev = 0;
		842	next = 0;
		843	}
		844
		845	object *object::create ()
		846	{
		847	object *op = new object;
		848	op->link ();
		849	return op;
		850	}
1059		851
1060	/*	852	/*
1061	* free_object() frees everything allocated by an object, removes	853	* free_object() frees everything allocated by an object, removes
1062	* it from the list of used objects, and puts it on the list of	854	* it from the list of used objects, and puts it on the list of
1063	* free objects. The IS_FREED() flag is set in the object.	855	* free objects. The IS_FREED() flag is set in the object.
1064	* The object must have been removed by remove_ob() first for	856	* The object must have been removed by remove_ob() first for
1065	* this function to succeed.	857	* this function to succeed.
1066	*	858	*
1067	* If free_inventory is set, free inventory as well. Else drop items in	859	* If destroy_inventory is set, free inventory as well. Else drop items in
1068	* inventory to the ground.	860	* inventory to the ground.
1069	*/	861	*/
		862	void object::destroy (bool destroy_inventory)
		863	{
		864	if (QUERY_FLAG (this, FLAG_FREED))
		865	return;
1070		866
1071	void free_object(object *ob) {	867	if (QUERY_FLAG (this, FLAG_FRIENDLY))
1072	free_object2(ob, 0);	868	remove_friendly_object (this);
1073	}
1074	void free_object2(object *ob, int free_inventory) {
1075	object *tmp,*op;
1076		869
1077	if (object_free_callback)
1078	object_free_callback (ob);
1079
1080	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	870	if (!QUERY_FLAG (this, FLAG_REMOVED))
1081	LOG(llevDebug,"Free object called with non removed object\n");	871	remove ();
1082	dump_object(ob);	872
1083	#ifdef MANY_CORES	873	SET_FLAG (this, FLAG_FREED);
1084	abort();	874
1085	#endif	875	if (more)
1086	}	876	{
1087	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	877	more->destroy (destroy_inventory);
1088	LOG(llevMonster,"Warning: tried to free friendly object.\n");	878	more = 0;
1089	remove_friendly_object(ob);	879	}
		880
		881	if (inv)
1090	}	882	{
1091	if(QUERY_FLAG(ob,FLAG_FREED)) {
1092	dump_object(ob);
1093	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);
1094	return;
1095	}
1096	if(ob->more!=NULL) {
1097	free_object2(ob->more, free_inventory);
1098	ob->more=NULL;
1099	}
1100	if (ob->inv) {
1101	/* Only if the space blocks everything do we not process -	883	/* Only if the space blocks everything do we not process -
1102	* if some form of movemnt is allowed, let objects	884	* if some form of movement is allowed, let objects
1103	* drop on that space.	885	* drop on that space.
1104	*/	886	*/
1105	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	887	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
1106	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	888	{
1107	{	889	object *op = inv;
1108	op=ob->inv;	890
1109	while(op!=NULL) {	891	while (op)
1110	tmp=op->below;	892	{
1111	remove_ob(op);	893	object *tmp = op->below;
1112	free_object2(op, free_inventory);	894	op->destroy (destroy_inventory);
1113	op=tmp;	895	op = tmp;
		896	}
		897	}
		898	else
		899	{ /* Put objects in inventory onto this space */
		900	object *op = inv;
		901
		902	while (op)
		903	{
		904	object *tmp = op->below;
		905
		906	op->remove ();
		907
		908	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
		909	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
		910	op->destroy ();
		911	else
		912	{
		913	op->x = x;
		914	op->y = y;
		915	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
		916	}
		917
		918	op = tmp;
		919	}
		920	}
1114	}	921	}
1115	}	922
1116	else { /* Put objects in inventory onto this space */	923	// hack to ensure that freed objects still have a valid map
1117	op=ob->inv;	924	{
1118	while(op!=NULL) {	925	static maptile *freed_map; // freed objects are moved here to avoid crashes
1119	tmp=op->below;	926
1120	remove_ob(op);	927	if (!freed_map)
1121	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||	928	{
1122	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))	929	freed_map = new maptile;
1123	free_object(op);	930
1124	else {	931	freed_map->name = "/internal/freed_objects_map";
1125	op->x=ob->x;	932	freed_map->width = 3;
1126	op->y=ob->y;	933	freed_map->height = 3;
1127	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */	934
1128	}	935	freed_map->allocate ();
1129	op=tmp;
1130	}
1131	}
1132	}	936	}
		937
		938	map = freed_map;
		939	x = 1;
		940	y = 1;
		941	}
		942
		943	// clear those pointers that likely might have circular references to us
		944	owner = 0;
		945	enemy = 0;
		946	attacked_by = 0;
		947
		948	// only relevant for players(?), but make sure of it anyways
		949	contr = 0;
		950
1133	/* Remove object from the active list */	951	/* Remove object from the active list */
1134	ob->speed = 0;	952	speed = 0;
1135	update_ob_speed(ob);	953	update_ob_speed (this);
1136		954
1137	SET_FLAG(ob, FLAG_FREED);	955	unlink ();
1138	ob->count = 0;
1139		956
1140	/* Remove this object from the list of used objects */	957	mortals.push_back (this);
1141	if(ob->prev==NULL) {
1142	objects=ob->next;
1143	if(objects!=NULL)
1144	objects->prev=NULL;
1145	}
1146	else {
1147	ob->prev->next=ob->next;
1148	if(ob->next!=NULL)
1149	ob->next->prev=ob->prev;
1150	}
1151
1152	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1153	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1154	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1155	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1156	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1157	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1158	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1159	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1160	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1161
1162
1163	/* Why aren't events freed? */
1164	free_key_values(ob);
1165
1166	#if 0 /* MEMORY_DEBUG*/
1167	/* This is a nice idea. Unfortunately, a lot of the code in crossfire
1168	* presumes the freed_object will stick around for at least a little
1169	* bit
1170	*/
1171	/* this is necessary so that memory debugging programs will
1172	* be able to accurately report source of malloc. If we recycle
1173	* objects, then some other area may be doing the get_object
1174	* and not freeing it, but the original one that malloc'd the
1175	* object will get the blame.
1176	*/
1177	free(ob);
1178	#else
1179
1180	/* Now link it with the free_objects list: */
1181	ob->prev=NULL;
1182	ob->next=free_objects;
1183	if(free_objects!=NULL)
1184	free_objects->prev=ob;
1185	free_objects=ob;
1186	nroffreeobjects++;
1187	#endif
1188	}
1189
1190	/*
1191	* count_free() returns the number of objects on the list of free objects.
1192	*/
1193
1194	int count_free(void) {
1195	int i=0;
1196	object *tmp=free_objects;
1197	while(tmp!=NULL)
1198	tmp=tmp->next, i++;
1199	return i;
1200	}
1201
1202	/*
1203	* count_used() returns the number of objects on the list of used objects.
1204	*/
1205
1206	int count_used(void) {
1207	int i=0;
1208	object *tmp=objects;
1209	while(tmp!=NULL)
1210	tmp=tmp->next, i++;
1211	return i;
1212	}
1213
1214	/*
1215	* count_active() returns the number of objects on the list of active objects.
1216	*/
1217
1218	int count_active(void) {
1219	int i=0;
1220	object *tmp=active_objects;
1221	while(tmp!=NULL)
1222	tmp=tmp->active_next, i++;
1223	return i;
1224	}	958	}
1225		959
1226	/*	960	/*
1227	* sub_weight() recursively (outwards) subtracts a number from the	961	* sub_weight() recursively (outwards) subtracts a number from the
1228	* weight of an object (and what is carried by it's environment(s)).	962	* weight of an object (and what is carried by it's environment(s)).
1229	*/	963	*/
1230		964	void
1231	void sub_weight (object *op, signed long weight) {	965	sub_weight (object *op, signed long weight)
		966	{
1232	while (op != NULL) {	967	while (op != NULL)
		968	{
1233	if (op->type == CONTAINER) {	969	if (op->type == CONTAINER)
1234	weight=(signed long)(weight*(100-op->stats.Str)/100);	970	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1235	}	971
1236	op->carrying-=weight;	972	op->carrying -= weight;
1237	op = op->env;	973	op = op->env;
1238	}	974	}
1239	}	975	}
1240		976
1241	/* remove_ob(op):	977	/* op->remove ():
1242	* This function removes the object op from the linked list of objects	978	* This function removes the object op from the linked list of objects
1243	* which it is currently tied to. When this function is done, the	979	* which it is currently tied to. When this function is done, the
1244	* object will have no environment. If the object previously had an	980	* object will have no environment. If the object previously had an
1245	* environment, the x and y coordinates will be updated to	981	* environment, the x and y coordinates will be updated to
1246	* the previous environment.	982	* the previous environment.
1247	* Beware: This function is called from the editor as well!	983	* Beware: This function is called from the editor as well!
1248	*/	984	*/
1249		985	void
1250	void remove_ob(object *op) {	986	object::remove ()
		987	{
1251	object *tmp,*last=NULL;	988	object *tmp, *last = 0;
1252	object *otmp;	989	object *otmp;
1253	tag_t tag;	990
1254	int check_walk_off;	991	int check_walk_off;
1255	mapstruct *m;
1256	sint16 x,y;
1257
1258		992
1259	if(QUERY_FLAG(op,FLAG_REMOVED)) {	993	if (QUERY_FLAG (this, FLAG_REMOVED))
1260	dump_object(op);	994	return;
1261	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1262		995
1263	/* Changed it to always dump core in this case. As has been learned
1264	* in the past, trying to recover from errors almost always
1265	* make things worse, and this is a real error here - something
1266	* that should not happen.
1267	* Yes, if this was a mission critical app, trying to do something
1268	* to recover may make sense, but that is because failure of the app
1269	* may have other disastrous problems. Cf runs out of a script
1270	* so is easily enough restarted without any real problems.
1271	* MSW 2001-07-01
1272	*/
1273	abort();
1274	}
1275	if(op->more!=NULL)
1276	remove_ob(op->more);
1277
1278	SET_FLAG(op, FLAG_REMOVED);	996	SET_FLAG (this, FLAG_REMOVED);
1279		997
		998	if (more)
		999	more->remove ();
		1000
1280	/*	1001	/*
1281	* In this case, the object to be removed is in someones	1002	* In this case, the object to be removed is in someones
1282	* inventory.	1003	* inventory.
1283	*/	1004	*/
1284	if(op->env!=NULL) {	1005	if (env)
1285	if(op->nrof)	1006	{
		1007	if (nrof)
1286	sub_weight(op->env, op->weight*op->nrof);	1008	sub_weight (env, weight * nrof);
1287	else	1009	else
1288	sub_weight(op->env, op->weight+op->carrying);	1010	sub_weight (env, weight + carrying);
1289		1011
1290	/* NO_FIX_PLAYER is set when a great many changes are being	1012	/* NO_FIX_PLAYER is set when a great many changes are being
1291	* made to players inventory. If set, avoiding the call	1013	* made to players inventory. If set, avoiding the call
1292	* to save cpu time.	1014	* to save cpu time.
1293	*/	1015	*/
1294	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1016	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1295	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))
1296	fix_player(otmp);	1017	fix_player (otmp);
1297		1018
1298	if(op->above!=NULL)	1019	if (above != NULL)
1299	op->above->below=op->below;	1020	above->below = below;
1300	else	1021	else
1301	op->env->inv=op->below;	1022	env->inv = below;
1302		1023
1303	if(op->below!=NULL)	1024	if (below != NULL)
1304	op->below->above=op->above;	1025	below->above = above;
1305		1026
1306	/* we set up values so that it could be inserted into	1027	/* we set up values so that it could be inserted into
1307	* the map, but we don't actually do that - it is up	1028	* the map, but we don't actually do that - it is up
1308	* to the caller to decide what we want to do.	1029	* to the caller to decide what we want to do.
1309	*/	1030	*/
1310	op->x=op->env->x,op->y=op->env->y;	1031	x = env->x, y = env->y;
1311	op->ox=op->x,op->oy=op->y;	1032	map = env->map;
1312	op->map=op->env->map;	1033	above = 0, below = 0;
1313	op->above=NULL,op->below=NULL;	1034	env = 0;
1314	op->env=NULL;	1035	}
1315	return;	1036	else if (map)
1316	}	1037	{
1317
1318	/* If we get here, we are removing it from a map */
1319	if (op->map == NULL) return;
1320
1321	x = op->x;
1322	y = op->y;
1323	m = get_map_from_coord(op->map, &x, &y);
1324
1325	if (!m) {
1326	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1327	op->map->path, op->x, op->y);
1328	/* in old days, we used to set x and y to 0 and continue.
1329	* it seems if we get into this case, something is probablye
1330	* screwed up and should be fixed.
1331	*/
1332	abort();
1333	}
1334	if (op->map != m) {
1335	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1336	op->map->path, m->path, op->x, op->y, x, y);
1337	}
1338
1339	/* Re did the following section of code - it looks like it had	1038	/* Re did the following section of code - it looks like it had
1340	* lots of logic for things we no longer care about	1039	* lots of logic for things we no longer care about
1341	*/	1040	*/
1342		1041
1343	/* link the object above us */	1042	/* link the object above us */
1344	if (op->above)	1043	if (above)
1345	op->above->below=op->below;	1044	above->below = below;
1346	else	1045	else
1347	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */	1046	map->at (x, y).top = below; /* we were top, set new top */
1348		1047
1349	/* Relink the object below us, if there is one */	1048	/* Relink the object below us, if there is one */
1350	if(op->below) {	1049	if (below)
1351	op->below->above=op->above;	1050	below->above = above;
1352	} else {	1051	else
		1052	{
1353	/* Nothing below, which means we need to relink map object for this space	1053	/* Nothing below, which means we need to relink map object for this space
1354	* use translated coordinates in case some oddness with map tiling is	1054	* use translated coordinates in case some oddness with map tiling is
1355	* evident	1055	* evident
1356	*/	1056	*/
1357	if(GET_MAP_OB(m,x,y)!=op) {	1057	if (GET_MAP_OB (map, x, y) != this)
1358	dump_object(op);	1058	{
		1059	char *dump = dump_object (this);
		1060	LOG (llevError,
1359	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);	1061	"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);
1360	dump_object(GET_MAP_OB(m,x,y));	1062	free (dump);
1361	LOG(llevError,"%s\n",errmsg);	1063	dump = dump_object (GET_MAP_OB (map, x, y));
1362	}	1064	LOG (llevError, "%s\n", dump);
1363	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1065	free (dump);
1364	}	1066	}
1365	op->above=NULL;
1366	op->below=NULL;
1367		1067
		1068	map->at (x, y).bottom = above; /* goes on above it. */
		1069	}
		1070
		1071	above = 0;
		1072	below = 0;
		1073
1368	if (op->map->in_memory == MAP_SAVING)	1074	if (map->in_memory == MAP_SAVING)
1369	return;	1075	return;
1370		1076
1371	tag = op->count;
1372	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1077	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);
		1078
1373	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1079	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
		1080	{
1374	/* No point updating the players look faces if he is the object	1081	/* No point updating the players look faces if he is the object
1375	* being removed.	1082	* being removed.
1376	*/	1083	*/
1377		1084
1378	if(tmp->type==PLAYER && tmp!=op) {	1085	if (tmp->type == PLAYER && tmp != this)
		1086	{
1379	/* If a container that the player is currently using somehow gets	1087	/* If a container that the player is currently using somehow gets
1380	* removed (most likely destroyed), update the player view	1088	* removed (most likely destroyed), update the player view
1381	* appropriately.	1089	* appropriately.
1382	*/	1090	*/
1383	if (tmp->container==op) {	1091	if (tmp->container == this)
1384	CLEAR_FLAG(op, FLAG_APPLIED);	1092	{
1385	tmp->container=NULL;	1093	CLEAR_FLAG (this, FLAG_APPLIED);
1386	}	1094	tmp->container = 0;
1387	tmp->contr->socket.update_look=1;	1095	}
1388	}	1096
		1097	tmp->contr->socket->floorbox_update ();
		1098	}
		1099
1389	/* See if player moving off should effect something */	1100	/* See if player moving off should effect something */
1390	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1101	if (check_walk_off
		1102	&& ((move_type & tmp->move_off)
1391	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1103	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1104	{
		1105	move_apply (tmp, this, 0);
1392		1106
1393	move_apply(tmp, op, NULL);	1107	if (destroyed ())
1394	if (was_destroyed (op, tag)) {	1108	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1395	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1109	}
1396	"leaving object\n", tmp->name, tmp->arch->name);
1397	}
1398	}
1399		1110
1400	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1111	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1401		1112
1402	if(tmp->above == tmp)	1113	if (tmp->above == tmp)
1403	tmp->above = NULL;	1114	tmp->above = 0;
1404	last=tmp;	1115
1405	}	1116	last = tmp;
		1117	}
		1118
1406	/* last == NULL of there are no objects on this space */	1119	/* last == NULL of there are no objects on this space */
1407	if (last==NULL) {	1120	if (!last)
1408	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1121	map->at (x, y).flags_ = P_NEED_UPDATE;
1409	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1410	* those out anyways, and if there are any flags set right now, they won't
1411	* be correct anyways.
1412	*/
1413	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1414	update_position(op->map, op->x, op->y);
1415	}
1416	else	1122	else
1417	update_object(last, UP_OBJ_REMOVE);	1123	update_object (last, UP_OBJ_REMOVE);
1418		1124
1419	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1125	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1420	update_all_los(op->map, op->x, op->y);	1126	update_all_los (map, x, y);
1421		1127	}
1422	}	1128	}
1423		1129
1424	/*	1130	/*
1425	* merge_ob(op,top):	1131	* merge_ob(op,top):
1426	*	1132	*
1427	* This function goes through all objects below and including top, and	1133	* This function goes through all objects below and including top, and
1428	* merges op to the first matching object.	1134	* merges op to the first matching object.
1429	* If top is NULL, it is calculated.	1135	* If top is NULL, it is calculated.
1430	* Returns pointer to object if it succeded in the merge, otherwise NULL	1136	* Returns pointer to object if it succeded in the merge, otherwise NULL
1431	*/	1137	*/
1432		1138	object *
1433	object *merge_ob(object *op, object *top) {	1139	merge_ob (object *op, object *top)
		1140	{
1434	if(!op->nrof)	1141	if (!op->nrof)
1435	return 0;	1142	return 0;
		1143
1436	if(top==NULL)	1144	if (top == NULL)
1437	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1145	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1146
1438	for(;top!=NULL;top=top->below) {	1147	for (; top != NULL; top = top->below)
		1148	{
1439	if(top==op)	1149	if (top == op)
1440	continue;	1150	continue;
1441	if (CAN_MERGE(op,top))	1151
1442	{	1152	if (object::can_merge (op, top))
		1153	{
1443	top->nrof+=op->nrof;	1154	top->nrof += op->nrof;
		1155
1444	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1156	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1445	op->weight = 0; /* Don't want any adjustements now */	1157	op->weight = 0; /* Don't want any adjustements now */
1446	remove_ob(op);	1158	op->destroy ();
1447	free_object(op);
1448	return top;	1159	return top;
1449	}	1160	}
1450	}	1161	}
		1162
1451	return NULL;	1163	return 0;
1452	}	1164	}
1453		1165
1454	/*	1166	/*
1455	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1167	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1456	* job preparing multi-part monsters	1168	* job preparing multi-part monsters
1457	*/	1169	*/
		1170	object *
1458	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1171	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1172	{
1459	object* tmp;	1173	object *tmp;
		1174
1460	if (op->head)	1175	if (op->head)
1461	op=op->head;	1176	op = op->head;
		1177
1462	for (tmp=op;tmp;tmp=tmp->more){	1178	for (tmp = op; tmp; tmp = tmp->more)
		1179	{
1463	tmp->x=x+tmp->arch->clone.x;	1180	tmp->x = x + tmp->arch->clone.x;
1464	tmp->y=y+tmp->arch->clone.y;	1181	tmp->y = y + tmp->arch->clone.y;
1465	}	1182	}
		1183
1466	return insert_ob_in_map (op, m, originator, flag);	1184	return insert_ob_in_map (op, m, originator, flag);
1467	}	1185	}
1468		1186
1469	/*	1187	/*
1470	* insert_ob_in_map (op, map, originator, flag):	1188	* insert_ob_in_map (op, map, originator, flag):
1471	* This function inserts the object in the two-way linked list	1189	* This function inserts the object in the two-way linked list
…		…
1485	* new object if 'op' was merged with other object	1203	* new object if 'op' was merged with other object
1486	* NULL if 'op' was destroyed	1204	* NULL if 'op' was destroyed
1487	* just 'op' otherwise	1205	* just 'op' otherwise
1488	*/	1206	*/
1489		1207
		1208	object *
1490	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1209	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1491	{	1210	{
1492	object *tmp, *top, *floor=NULL;	1211	object *tmp, *top, *floor = NULL;
1493	sint16 x,y;	1212	sint16 x, y;
1494		1213
1495	if (QUERY_FLAG (op, FLAG_FREED)) {	1214	if (QUERY_FLAG (op, FLAG_FREED))
		1215	{
1496	LOG (llevError, "Trying to insert freed object!\n");	1216	LOG (llevError, "Trying to insert freed object!\n");
1497	return NULL;	1217	return NULL;
		1218	}
		1219
		1220	if (m == NULL)
1498	}	1221	{
1499	if(m==NULL) {	1222	char *dump = dump_object (op);
1500	dump_object(op);
1501	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1223	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1502	return op;	1224	free (dump);
		1225	return op;
1503	}	1226	}
		1227
1504	if(out_of_map(m,op->x,op->y)) {	1228	if (out_of_map (m, op->x, op->y))
1505	dump_object(op);	1229	{
		1230	char *dump = dump_object (op);
1506	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1231	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1507	#ifdef MANY_CORES	1232	#ifdef MANY_CORES
1508	/* Better to catch this here, as otherwise the next use of this object	1233	/* Better to catch this here, as otherwise the next use of this object
1509	* is likely to cause a crash. Better to find out where it is getting	1234	* is likely to cause a crash. Better to find out where it is getting
1510	* improperly inserted.	1235	* improperly inserted.
1511	*/	1236	*/
1512	abort();	1237	abort ();
1513	#endif	1238	#endif
1514	return op;	1239	free (dump);
		1240	return op;
1515	}	1241	}
		1242
1516	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1243	if (!QUERY_FLAG (op, FLAG_REMOVED))
1517	dump_object(op);	1244	{
		1245	char *dump = dump_object (op);
1518	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1246	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1519	return op;	1247	free (dump);
		1248	return op;
1520	}	1249	}
		1250
1521	if(op->more!=NULL) {	1251	if (op->more != NULL)
		1252	{
1522	/* The part may be on a different map. */	1253	/* The part may be on a different map. */
1523		1254
1524	object *more = op->more;	1255	object *more = op->more;
1525		1256
1526	/* We really need the caller to normalize coordinates - if	1257	/* We really need the caller to normalize coordinates - if
1527	* we set the map, that doesn't work if the location is within	1258	* we set the map, that doesn't work if the location is within
1528	* a map and this is straddling an edge. So only if coordinate	1259	* a map and this is straddling an edge. So only if coordinate
1529	* is clear wrong do we normalize it.	1260	* is clear wrong do we normalize it.
1530	*/	1261	*/
1531	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1262	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1532	/* Debugging information so you can see the last coordinates this object had */
1533	more->ox = more->x;
1534	more->oy = more->y;
1535	more->map = get_map_from_coord(m, &more->x, &more->y);	1263	more->map = get_map_from_coord (m, &more->x, &more->y);
1536	} else if (!more->map) {	1264	else if (!more->map)
		1265	{
1537	/* For backwards compatibility - when not dealing with tiled maps,	1266	/* For backwards compatibility - when not dealing with tiled maps,
1538	* more->map should always point to the parent.	1267	* more->map should always point to the parent.
1539	*/	1268	*/
1540	more->map = m;	1269	more->map = m;
1541	}	1270	}
1542		1271
1543	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1272	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1273	{
1544	if ( ! op->head)	1274	if (!op->head)
1545	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1275	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1276
1546	return NULL;	1277	return NULL;
1547	}	1278	}
1548	}	1279	}
		1280
1549	CLEAR_FLAG(op,FLAG_REMOVED);	1281	CLEAR_FLAG (op, FLAG_REMOVED);
1550		1282
1551	/* Debugging information so you can see the last coordinates this object had */
1552	op->ox=op->x;
1553	op->oy=op->y;
1554
1555	/* Ideally, the caller figures this out. However, it complicates a lot	1283	/* Ideally, the caller figures this out. However, it complicates a lot
1556	* of areas of callers (eg, anything that uses find_free_spot would now	1284	* of areas of callers (eg, anything that uses find_free_spot would now
1557	* need extra work	1285	* need extra work
1558	*/	1286	*/
1559	op->map=get_map_from_coord(m, &op->x, &op->y);	1287	op->map = get_map_from_coord (m, &op->x, &op->y);
1560	x = op->x;	1288	x = op->x;
1561	y = op->y;	1289	y = op->y;
1562		1290
1563	/* this has to be done after we translate the coordinates.	1291	/* this has to be done after we translate the coordinates.
1564	*/	1292	*/
1565	if(op->nrof && !(flag & INS_NO_MERGE)) {	1293	if (op->nrof && !(flag & INS_NO_MERGE))
1566	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1294	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1567	if (CAN_MERGE(op,tmp)) {	1295	if (object::can_merge (op, tmp))
1568	op->nrof+=tmp->nrof;	1296	{
1569	remove_ob(tmp);	1297	op->nrof += tmp->nrof;
1570	free_object(tmp);	1298	tmp->destroy ();
1571	}	1299	}
1572	}
1573		1300
1574	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1301	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1575	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1302	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1303
1576	if (!QUERY_FLAG(op, FLAG_ALIVE))	1304	if (!QUERY_FLAG (op, FLAG_ALIVE))
1577	CLEAR_FLAG(op, FLAG_NO_STEAL);	1305	CLEAR_FLAG (op, FLAG_NO_STEAL);
1578		1306
1579	if (flag & INS_BELOW_ORIGINATOR) {	1307	if (flag & INS_BELOW_ORIGINATOR)
		1308	{
1580	if (originator->map != op->map || originator->x != op->x ||	1309	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1581	originator->y != op->y) {	1310	{
1582	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1311	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1583	abort();	1312	abort ();
1584	}	1313	}
		1314
1585	op->above = originator;	1315	op->above = originator;
1586	op->below = originator->below;	1316	op->below = originator->below;
1587	if (op->below) op->below->above = op;	1317
1588	else SET_MAP_OB(op->map, op->x, op->y, op);	1318	if (op->below)
		1319	op->below->above = op;
		1320	else
		1321	op->ms ().bottom = op;
		1322
1589	/* since *below* originator, no need to update top */	1323	/* since *below* originator, no need to update top */
1590	originator->below = op;	1324	originator->below = op;
1591	} else {	1325	}
		1326	else
		1327	{
1592	/* If there are other objects, then */	1328	/* If there are other objects, then */
1593	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1329	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1330	{
1594	object *last=NULL;	1331	object *last = NULL;
1595	/*	1332
		1333	/*
1596	* If there are multiple objects on this space, we do some trickier handling.	1334	* If there are multiple objects on this space, we do some trickier handling.
1597	* We've already dealt with merging if appropriate.	1335	* We've already dealt with merging if appropriate.
1598	* Generally, we want to put the new object on top. But if	1336	* Generally, we want to put the new object on top. But if
1599	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1337	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1600	* floor, we want to insert above that and no further.	1338	* floor, we want to insert above that and no further.
1601	* Also, if there are spell objects on this space, we stop processing	1339	* Also, if there are spell objects on this space, we stop processing
1602	* once we get to them. This reduces the need to traverse over all of	1340	* once we get to them. This reduces the need to traverse over all of
1603	* them when adding another one - this saves quite a bit of cpu time	1341	* them when adding another one - this saves quite a bit of cpu time
1604	* when lots of spells are cast in one area. Currently, it is presumed	1342	* when lots of spells are cast in one area. Currently, it is presumed
1605	* that flying non pickable objects are spell objects.	1343	* that flying non pickable objects are spell objects.
1606	*/	1344	*/
1607		1345
1608	while (top != NULL) {	1346	while (top != NULL)
1609	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||	1347	{
1610	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;	1348	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1611	if (QUERY_FLAG(top, FLAG_NO_PICK)	1349	floor = top;
1612	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))	1350
1613	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))	1351	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1614	{	1352	{
1615	/* We insert above top, so we want this object below this */	1353	/* We insert above top, so we want this object below this */
1616	top=top->below;	1354	top = top->below;
1617	break;	1355	break;
1618	}	1356	}
1619	last = top;	1357
1620	top = top->above;	1358	last = top;
1621	}	1359	top = top->above;
		1360	}
		1361
1622	/* Don't want top to be NULL, so set it to the last valid object */	1362	/* Don't want top to be NULL, so set it to the last valid object */
1623	top = last;	1363	top = last;
1624		1364
1625	/* We let update_position deal with figuring out what the space	1365	/* We let update_position deal with figuring out what the space
1626	* looks like instead of lots of conditions here.	1366	* looks like instead of lots of conditions here.
1627	* makes things faster, and effectively the same result.	1367	* makes things faster, and effectively the same result.
1628	*/	1368	*/
1629		1369
1630	/* Have object 'fall below' other objects that block view.	1370	/* Have object 'fall below' other objects that block view.
1631	* Unless those objects are exits, type 66	1371	* Unless those objects are exits, type 66
1632	* If INS_ON_TOP is used, don't do this processing	1372	* If INS_ON_TOP is used, don't do this processing
1633	* Need to find the object that in fact blocks view, otherwise	1373	* Need to find the object that in fact blocks view, otherwise
1634	* stacking is a bit odd.	1374	* stacking is a bit odd.
1635	*/	1375	*/
1636	if (!(flag & INS_ON_TOP) &&	1376	if (!(flag & INS_ON_TOP) &&
1637	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1377	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1638	(op->face && !op->face->visibility)) {	1378	{
1639	for (last=top; last != floor; last=last->below)	1379	for (last = top; last != floor; last = last->below)
1640	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1380	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1381	break;
1641	/* Check to see if we found the object that blocks view,	1382	/* Check to see if we found the object that blocks view,
1642	* and make sure we have a below pointer for it so that	1383	* and make sure we have a below pointer for it so that
1643	* we can get inserted below this one, which requires we	1384	* we can get inserted below this one, which requires we
1644	* set top to the object below us.	1385	* set top to the object below us.
1645	*/	1386	*/
1646	if (last && last->below && last != floor) top=last->below;	1387	if (last && last->below && last != floor)
1647	}	1388	top = last->below;
1648	} /* If objects on this space */	1389	}
		1390	} /* If objects on this space */
		1391
1649	if (flag & INS_MAP_LOAD)	1392	if (flag & INS_MAP_LOAD)
1650	top = GET_MAP_TOP(op->map,op->x,op->y);	1393	top = GET_MAP_TOP (op->map, op->x, op->y);
		1394
1651	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1395	if (flag & INS_ABOVE_FLOOR_ONLY)
		1396	top = floor;
1652		1397
1653	/* Top is the object that our object (op) is going to get inserted above.	1398	/* Top is the object that our object (op) is going to get inserted above.
1654	*/	1399	*/
1655		1400
1656	/* First object on this space */	1401	/* First object on this space */
1657	if (!top) {	1402	if (!top)
		1403	{
1658	op->above = GET_MAP_OB(op->map, op->x, op->y);	1404	op->above = GET_MAP_OB (op->map, op->x, op->y);
1659	if (op->above) op->above->below = op;	1405
		1406	if (op->above)
		1407	op->above->below = op;
		1408
1660	op->below = NULL;	1409	op->below = NULL;
1661	SET_MAP_OB(op->map, op->x, op->y, op);	1410	op->ms ().bottom = op;
1662	} else { /* get inserted into the stack above top */	1411	}
		1412	else
		1413	{ /* get inserted into the stack above top */
1663	op->above = top->above;	1414	op->above = top->above;
1664	if (op->above) op->above->below = op;	1415
		1416	if (op->above)
		1417	op->above->below = op;
		1418
1665	op->below = top;	1419	op->below = top;
1666	top->above = op;	1420	top->above = op;
1667	}	1421	}
		1422
1668	if (op->above==NULL)	1423	if (op->above == NULL)
1669	SET_MAP_TOP(op->map,op->x, op->y, op);	1424	op->ms ().top = op;
1670	} /* else not INS_BELOW_ORIGINATOR */	1425	} /* else not INS_BELOW_ORIGINATOR */
1671		1426
1672	if(op->type==PLAYER)	1427	if (op->type == PLAYER)
1673	op->contr->do_los=1;	1428	op->contr->do_los = 1;
1674		1429
1675	/* If we have a floor, we know the player, if any, will be above	1430	/* If we have a floor, we know the player, if any, will be above
1676	* it, so save a few ticks and start from there.	1431	* it, so save a few ticks and start from there.
1677	*/	1432	*/
1678	if (!(flag & INS_MAP_LOAD))	1433	if (!(flag & INS_MAP_LOAD))
1679	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1434	if (object *pl = op->ms ().player ())
1680	if (tmp->type == PLAYER)	1435	pl->contr->socket->floorbox_update ();
1681	tmp->contr->socket.update_look=1;
1682	}
1683		1436
1684	/* If this object glows, it may affect lighting conditions that are	1437	/* If this object glows, it may affect lighting conditions that are
1685	* visible to others on this map. But update_all_los is really	1438	* visible to others on this map. But update_all_los is really
1686	* an inefficient way to do this, as it means los for all players	1439	* an inefficient way to do this, as it means los for all players
1687	* on the map will get recalculated. The players could very well	1440	* on the map will get recalculated. The players could very well
1688	* be far away from this change and not affected in any way -	1441	* be far away from this change and not affected in any way -
1689	* this should get redone to only look for players within range,	1442	* this should get redone to only look for players within range,
1690	* or just updating the P_NEED_UPDATE for spaces within this area	1443	* or just updating the P_NEED_UPDATE for spaces within this area
1691	* of effect may be sufficient.	1444	* of effect may be sufficient.
1692	*/	1445	*/
1693	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1446	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
1694	update_all_los(op->map, op->x, op->y);	1447	update_all_los (op->map, op->x, op->y);
1695		1448
1696
1697	/* updates flags (blocked, alive, no magic, etc) for this map space */	1449	/* updates flags (blocked, alive, no magic, etc) for this map space */
1698	update_object(op,UP_OBJ_INSERT);	1450	update_object (op, UP_OBJ_INSERT);
1699		1451
1700
1701	/* Don't know if moving this to the end will break anything. However,	1452	/* Don't know if moving this to the end will break anything. However,
1702	* we want to have update_look set above before calling this.	1453	* we want to have floorbox_update called before calling this.
1703	*	1454	*
1704	* check_move_on() must be after this because code called from	1455	* check_move_on() must be after this because code called from
1705	* check_move_on() depends on correct map flags (so functions like	1456	* check_move_on() depends on correct map flags (so functions like
1706	* blocked() and wall() work properly), and these flags are updated by	1457	* blocked() and wall() work properly), and these flags are updated by
1707	* update_object().	1458	* update_object().
1708	*/	1459	*/
1709		1460
1710	/* if this is not the head or flag has been passed, don't check walk on status */	1461	/* if this is not the head or flag has been passed, don't check walk on status */
1711
1712	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1462	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1463	{
1713	if (check_move_on(op, originator))	1464	if (check_move_on (op, originator))
1714	return NULL;	1465	return NULL;
1715		1466
1716	/* If we are a multi part object, lets work our way through the check	1467	/* If we are a multi part object, lets work our way through the check
1717	* walk on's.	1468	* walk on's.
1718	*/	1469	*/
1719	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1470	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1720	if (check_move_on (tmp, originator))	1471	if (check_move_on (tmp, originator))
1721	return NULL;	1472	return NULL;
1722	}	1473	}
		1474
1723	return op;	1475	return op;
1724	}	1476	}
1725		1477
1726	/* this function inserts an object in the map, but if it	1478	/* this function inserts an object in the map, but if it
1727	* finds an object of its own type, it'll remove that one first.	1479	* finds an object of its own type, it'll remove that one first.
1728	* op is the object to insert it under: supplies x and the map.	1480	* op is the object to insert it under: supplies x and the map.
1729	*/	1481	*/
		1482	void
1730	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1483	replace_insert_ob_in_map (const char *arch_string, object *op)
1731	object *tmp;	1484	{
1732	object *tmp1;	1485	object *tmp, *tmp1;
1733		1486
1734	/* first search for itself and remove any old instances */	1487	/* first search for itself and remove any old instances */
1735		1488
1736	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1489	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1737	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1490	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1738	remove_ob(tmp);	1491	tmp->destroy ();
1739	free_object(tmp);
1740	}
1741	}
1742		1492
1743	tmp1=arch_to_object(find_archetype(arch_string));	1493	tmp1 = arch_to_object (archetype::find (arch_string));
1744		1494
1745		1495	tmp1->x = op->x;
1746	tmp1->x = op->x; tmp1->y = op->y;	1496	tmp1->y = op->y;
1747	insert_ob_in_map(tmp1,op->map,op,0);	1497	insert_ob_in_map (tmp1, op->map, op, 0);
1748	}	1498	}
1749		1499
1750	/*	1500	/*
1751	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1501	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1752	* is returned contains nr objects, and the remaining parts contains	1502	* is returned contains nr objects, and the remaining parts contains
1753	* the rest (or is removed and freed if that number is 0).	1503	* the rest (or is removed and freed if that number is 0).
1754	* On failure, NULL is returned, and the reason put into the	1504	* On failure, NULL is returned, and the reason put into the
1755	* global static errmsg array.	1505	* global static errmsg array.
1756	*/	1506	*/
1757		1507
		1508	object *
1758	object *get_split_ob(object *orig_ob, uint32 nr) {	1509	get_split_ob (object *orig_ob, uint32 nr)
		1510	{
1759	object *newob;	1511	object *newob;
1760	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1512	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1761		1513
1762	if(orig_ob->nrof<nr) {	1514	if (orig_ob->nrof < nr)
1763	sprintf(errmsg,"There are only %d %ss.",
1764	orig_ob->nrof?orig_ob->nrof:1, orig_ob->name);
1765	return NULL;
1766	}	1515	{
		1516	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
		1517	return NULL;
		1518	}
		1519
1767	newob = object_create_clone(orig_ob);	1520	newob = object_create_clone (orig_ob);
		1521
1768	if((orig_ob->nrof-=nr)<1) {	1522	if ((orig_ob->nrof -= nr) < 1)
1769	if ( ! is_removed)	1523	orig_ob->destroy (1);
1770	remove_ob(orig_ob);
1771	free_object2(orig_ob, 1);
1772	}
1773	else if ( ! is_removed) {	1524	else if (!is_removed)
		1525	{
1774	if(orig_ob->env!=NULL)	1526	if (orig_ob->env != NULL)
1775	sub_weight (orig_ob->env,orig_ob->weight*nr);	1527	sub_weight (orig_ob->env, orig_ob->weight * nr);
1776	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1528	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1529	{
1777	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1530	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1778	LOG(llevDebug,
1779	"Error, Tried to split object whose map is not in memory.\n");	1531	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1780	return NULL;	1532	return NULL;
1781	}	1533	}
1782	}	1534	}
		1535
1783	newob->nrof=nr;	1536	newob->nrof = nr;
1784		1537
1785	return newob;	1538	return newob;
1786	}	1539	}
1787		1540
1788	/*	1541	/*
1789	* decrease_ob_nr(object, number) decreases a specified number from	1542	* decrease_ob_nr(object, number) decreases a specified number from
1790	* the amount of an object. If the amount reaches 0, the object	1543	* the amount of an object. If the amount reaches 0, the object
1791	* is subsequently removed and freed.	1544	* is subsequently removed and freed.
1792	*	1545	*
1793	* Return value: 'op' if something is left, NULL if the amount reached 0	1546	* Return value: 'op' if something is left, NULL if the amount reached 0
1794	*/	1547	*/
1795		1548
		1549	object *
1796	object *decrease_ob_nr (object *op, uint32 i)	1550	decrease_ob_nr (object *op, uint32 i)
1797	{	1551	{
1798	object *tmp;	1552	object *tmp;
1799	player *pl;	1553	player *pl;
1800		1554
1801	if (i == 0) /* objects with op->nrof require this check */	1555	if (i == 0) /* objects with op->nrof require this check */
1802	return op;	1556	return op;
1803		1557
1804	if (i > op->nrof)	1558	if (i > op->nrof)
1805	i = op->nrof;	1559	i = op->nrof;
1806		1560
1807	if (QUERY_FLAG (op, FLAG_REMOVED))	1561	if (QUERY_FLAG (op, FLAG_REMOVED))
		1562	op->nrof -= i;
		1563	else if (op->env)
		1564	{
		1565	/* is this object in the players inventory, or sub container
		1566	* therein?
		1567	*/
		1568	tmp = op->in_player ();
		1569	/* nope. Is this a container the player has opened?
		1570	* If so, set tmp to that player.
		1571	* IMO, searching through all the players will mostly
		1572	* likely be quicker than following op->env to the map,
		1573	* and then searching the map for a player.
		1574	*/
		1575	if (!tmp)
		1576	{
		1577	for (pl = first_player; pl; pl = pl->next)
		1578	if (pl->ob->container == op->env)
		1579	{
		1580	tmp = pl->ob;
		1581	break;
		1582	}
		1583	}
		1584
		1585	if (i < op->nrof)
		1586	{
		1587	sub_weight (op->env, op->weight * i);
		1588	op->nrof -= i;
		1589	if (tmp)
		1590	esrv_send_item (tmp, op);
		1591	}
		1592	else
		1593	{
		1594	op->remove ();
		1595	op->nrof = 0;
		1596	if (tmp)
		1597	esrv_del_item (tmp->contr, op->count);
		1598	}
1808	{	1599	}
		1600	else
		1601	{
		1602	object *above = op->above;
		1603
		1604	if (i < op->nrof)
1809	op->nrof -= i;	1605	op->nrof -= i;
1810	}
1811	else if (op->env != NULL)
1812	{
1813	/* is this object in the players inventory, or sub container
1814	* therein?
1815	*/
1816	tmp = is_player_inv (op->env);
1817	/* nope. Is this a container the player has opened?
1818	* If so, set tmp to that player.
1819	* IMO, searching through all the players will mostly
1820	* likely be quicker than following op->env to the map,
1821	* and then searching the map for a player.
1822	*/
1823	if (!tmp) {
1824	for (pl=first_player; pl; pl=pl->next)
1825	if (pl->ob->container == op->env) break;
1826	if (pl) tmp=pl->ob;
1827	else tmp=NULL;
1828	}
1829
1830	if (i < op->nrof) {
1831	sub_weight (op->env, op->weight * i);
1832	op->nrof -= i;
1833	if (tmp) {
1834	esrv_send_item(tmp, op);
1835	}
1836	} else {	1606	else
		1607	{
1837	remove_ob (op);	1608	op->remove ();
1838	op->nrof = 0;	1609	op->nrof = 0;
1839	if (tmp) {
1840	esrv_del_item(tmp->contr, op->count);
1841	}
1842	}	1610	}
1843	}
1844	else
1845	{
1846	object *above = op->above;
1847		1611
1848	if (i < op->nrof) {
1849	op->nrof -= i;
1850	} else {
1851	remove_ob (op);
1852	op->nrof = 0;
1853	}
1854	/* Since we just removed op, op->above is null */	1612	/* Since we just removed op, op->above is null */
1855	for (tmp = above; tmp != NULL; tmp = tmp->above)	1613	for (tmp = above; tmp; tmp = tmp->above)
1856	if (tmp->type == PLAYER) {	1614	if (tmp->type == PLAYER)
		1615	{
1857	if (op->nrof)	1616	if (op->nrof)
1858	esrv_send_item(tmp, op);	1617	esrv_send_item (tmp, op);
1859	else	1618	else
1860	esrv_del_item(tmp->contr, op->count);	1619	esrv_del_item (tmp->contr, op->count);
1861	}	1620	}
1862	}	1621	}
1863		1622
1864	if (op->nrof) {	1623	if (op->nrof)
1865	return op;	1624	return op;
1866	} else {	1625	else
1867	free_object (op);	1626	{
		1627	op->destroy ();
1868	return NULL;	1628	return 0;
1869	}	1629	}
1870	}	1630	}
1871		1631
1872	/*	1632	/*
1873	* add_weight(object, weight) adds the specified weight to an object,	1633	* add_weight(object, weight) adds the specified weight to an object,
1874	* and also updates how much the environment(s) is/are carrying.	1634	* and also updates how much the environment(s) is/are carrying.
1875	*/	1635	*/
1876		1636
		1637	void
1877	void add_weight (object *op, signed long weight) {	1638	add_weight (object *op, signed long weight)
		1639	{
1878	while (op!=NULL) {	1640	while (op != NULL)
		1641	{
1879	if (op->type == CONTAINER) {	1642	if (op->type == CONTAINER)
1880	weight=(signed long)(weight*(100-op->stats.Str)/100);	1643	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1881	}	1644
1882	op->carrying+=weight;	1645	op->carrying += weight;
1883	op=op->env;	1646	op = op->env;
1884	}	1647	}
1885	}	1648	}
1886		1649
		1650	object *
		1651	insert_ob_in_ob (object *op, object *where)
		1652	{
		1653	if (!where)
		1654	{
		1655	char *dump = dump_object (op);
		1656	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1657	free (dump);
		1658	return op;
		1659	}
		1660
		1661	if (where->head)
		1662	{
		1663	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1664	where = where->head;
		1665	}
		1666
		1667	return where->insert (op);
		1668	}
		1669
1887	/*	1670	/*
1888	* insert_ob_in_ob(op,environment):	1671	* env->insert (op)
1889	* This function inserts the object op in the linked list	1672	* This function inserts the object op in the linked list
1890	* inside the object environment.	1673	* inside the object environment.
1891	*	1674	*
1892	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1893	* the inventory at the last position or next to other objects of the same
1894	* type.
1895	* Frank: Now sorted by type, archetype and magic!
1896	*
1897	* The function returns now pointer to inserted item, and return value can	1675	* The function returns now pointer to inserted item, and return value can
1898	* be != op, if items are merged. -Tero	1676	* be != op, if items are merged. -Tero
1899	*/	1677	*/
1900		1678
1901	object *insert_ob_in_ob(object *op,object *where) {	1679	object *
		1680	object::insert (object *op)
		1681	{
1902	object *tmp, *otmp;	1682	object *tmp, *otmp;
1903		1683
1904	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1684	if (!QUERY_FLAG (op, FLAG_REMOVED))
1905	dump_object(op);	1685	op->remove ();
1906	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1686
1907	return op;
1908	}
1909	if(where==NULL) {
1910	dump_object(op);
1911	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1912	return op;
1913	}
1914	if (where->head) {
1915	LOG(llevDebug,
1916	"Warning: Tried to insert object wrong part of multipart object.\n");
1917	where = where->head;
1918	}
1919	if (op->more) {	1687	if (op->more)
		1688	{
1920	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1689	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1921	op->name, op->count);
1922	return op;	1690	return op;
1923	}	1691	}
		1692
1924	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1693	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1925	CLEAR_FLAG(op, FLAG_REMOVED);	1694	CLEAR_FLAG (op, FLAG_REMOVED);
1926	if(op->nrof) {	1695	if (op->nrof)
		1696	{
1927	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1697	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1928	if ( CAN_MERGE(tmp,op) ) {	1698	if (object::can_merge (tmp, op))
		1699	{
1929	/* return the original object and remove inserted object	1700	/* return the original object and remove inserted object
1930	(client needs the original object) */	1701	(client needs the original object) */
1931	tmp->nrof += op->nrof;	1702	tmp->nrof += op->nrof;
1932	/* Weight handling gets pretty funky. Since we are adding to	1703	/* Weight handling gets pretty funky. Since we are adding to
1933	* tmp->nrof, we need to increase the weight.	1704	* tmp->nrof, we need to increase the weight.
1934	*/	1705	*/
1935	add_weight (where, op->weight*op->nrof);	1706	add_weight (this, op->weight * op->nrof);
1936	SET_FLAG(op, FLAG_REMOVED);	1707	SET_FLAG (op, FLAG_REMOVED);
1937	free_object(op); /* free the inserted object */	1708	op->destroy (); /* free the inserted object */
1938	op = tmp;	1709	op = tmp;
1939	remove_ob (op); /* and fix old object's links */	1710	op->remove (); /* and fix old object's links */
1940	CLEAR_FLAG(op, FLAG_REMOVED);	1711	CLEAR_FLAG (op, FLAG_REMOVED);
1941	break;	1712	break;
1942	}	1713	}
1943		1714
1944	/* I assume combined objects have no inventory	1715	/* I assume combined objects have no inventory
1945	* We add the weight - this object could have just been removed	1716	* We add the weight - this object could have just been removed
1946	* (if it was possible to merge). calling remove_ob will subtract	1717	* (if it was possible to merge). calling remove_ob will subtract
1947	* the weight, so we need to add it in again, since we actually do	1718	* the weight, so we need to add it in again, since we actually do
1948	* the linking below	1719	* the linking below
1949	*/	1720	*/
1950	add_weight (where, op->weight*op->nrof);	1721	add_weight (this, op->weight * op->nrof);
		1722	}
1951	} else	1723	else
1952	add_weight (where, (op->weight+op->carrying));	1724	add_weight (this, (op->weight + op->carrying));
1953		1725
1954	otmp=is_player_inv(where);	1726	otmp = this->in_player ();
1955	if (otmp&&otmp->contr!=NULL) {	1727	if (otmp && otmp->contr)
1956	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1728	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1957	fix_player(otmp);	1729	fix_player (otmp);
1958	}
1959		1730
1960	op->map=NULL;	1731	op->map = 0;
1961	op->env=where;	1732	op->env = this;
1962	op->above=NULL;	1733	op->above = 0;
1963	op->below=NULL;	1734	op->below = 0;
1964	op->x=0,op->y=0;	1735	op->x = 0, op->y = 0;
1965	op->ox=0,op->oy=0;
1966		1736
1967	/* reset the light list and los of the players on the map */	1737	/* reset the light list and los of the players on the map */
1968	if((op->glow_radius!=0)&&where->map)	1738	if ((op->glow_radius != 0) && map)
1969	{	1739	{
1970	#ifdef DEBUG_LIGHTS	1740	#ifdef DEBUG_LIGHTS
1971	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1741	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1972	op->name);
1973	#endif /* DEBUG_LIGHTS */	1742	#endif /* DEBUG_LIGHTS */
1974	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1743	if (MAP_DARKNESS (map))
		1744	update_all_los (map, x, y);
1975	}	1745	}
1976		1746
1977	/* Client has no idea of ordering so lets not bother ordering it here.	1747	/* Client has no idea of ordering so lets not bother ordering it here.
1978	* It sure simplifies this function...	1748	* It sure simplifies this function...
1979	*/	1749	*/
1980	if (where->inv==NULL)	1750	if (!inv)
1981	where->inv=op;	1751	inv = op;
1982	else {	1752	else
		1753	{
1983	op->below = where->inv;	1754	op->below = inv;
1984	op->below->above = op;	1755	op->below->above = op;
1985	where->inv = op;	1756	inv = op;
1986	}	1757	}
		1758
1987	return op;	1759	return op;
1988	}	1760	}
1989		1761
1990	/*	1762	/*
1991	* Checks if any objects has a move_type that matches objects	1763	* Checks if any objects has a move_type that matches objects
…		…
2006	* MSW 2001-07-08: Check all objects on space, not just those below	1778	* MSW 2001-07-08: Check all objects on space, not just those below
2007	* object being inserted. insert_ob_in_map may not put new objects	1779	* object being inserted. insert_ob_in_map may not put new objects
2008	* on top.	1780	* on top.
2009	*/	1781	*/
2010		1782
		1783	int
2011	int check_move_on (object *op, object *originator)	1784	check_move_on (object *op, object *originator)
2012	{	1785	{
2013	object *tmp;	1786	object *tmp;
2014	tag_t tag;
2015	mapstruct *m=op->map;	1787	maptile *m = op->map;
2016	int x=op->x, y=op->y;	1788	int x = op->x, y = op->y;
		1789
2017	MoveType move_on, move_slow, move_block;	1790	MoveType move_on, move_slow, move_block;
2018		1791
2019	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1792	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2020	return 0;
2021
2022	tag = op->count;
2023
2024	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
2025	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
2026	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
2027
2028	/* if nothing on this space will slow op down or be applied,
2029	* no need to do checking below. have to make sure move_type
2030	* is set, as lots of objects don't have it set - we treat that
2031	* as walking.
2032	*/
2033	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
2034	return 0;
2035
2036	/* This is basically inverse logic of that below - basically,
2037	* if the object can avoid the move on or slow move, they do so,
2038	* but can't do it if the alternate movement they are using is
2039	* blocked. Logic on this seems confusing, but does seem correct.
2040	*/
2041	if ((op->move_type & ~move_on & ~move_block) != 0 &&
2042	(op->move_type & ~move_slow & ~move_block) != 0) return 0;
2043
2044	/* The objects have to be checked from top to bottom.
2045	* Hence, we first go to the top:
2046	*/
2047
2048	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&
2049	tmp->above!=NULL; tmp=tmp->above) {
2050	/* Trim the search when we find the first other spell effect
2051	* this helps performance so that if a space has 50 spell objects,
2052	* we don't need to check all of them.
2053	*/
2054	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;
2055	}
2056	for(;tmp!=NULL; tmp=tmp->below) {
2057	if (tmp == op) continue; /* Can't apply yourself */
2058
2059	/* Check to see if one of the movement types should be slowed down.
2060	* Second check makes sure that the movement types not being slowed
2061	* (~slow_move) is not blocked on this space - just because the
2062	* space doesn't slow down swimming (for example), if you can't actually
2063	* swim on that space, can't use it to avoid the penalty.
2064	*/
2065	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {
2066	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2067	((op->move_type & tmp->move_slow) &&
2068	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {
2069
2070	float diff;
2071
2072	diff = tmp->move_slow_penalty*FABS(op->speed);
2073	if (op->type == PLAYER) {
2074	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||
2075	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {
2076	diff /= 4.0;
2077	}
2078	}
2079	op->speed_left -= diff;
2080	}
2081	}
2082
2083	/* Basically same logic as above, except now for actual apply. */
2084	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2085	((op->move_type & tmp->move_on) &&
2086	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {
2087
2088	move_apply(tmp, op, originator);
2089	if (was_destroyed (op, tag))
2090	return 1;
2091
2092	/* what the person/creature stepped onto has moved the object
2093	* someplace new. Don't process any further - if we did,
2094	* have a feeling strange problems would result.
2095	*/
2096	if (op->map != m || op->x != x || op->y != y) return 0;
2097	}
2098	}
2099	return 0;	1793	return 0;
		1794
		1795	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1796	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		1797	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		1798
		1799	/* if nothing on this space will slow op down or be applied,
		1800	* no need to do checking below. have to make sure move_type
		1801	* is set, as lots of objects don't have it set - we treat that
		1802	* as walking.
		1803	*/
		1804	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		1805	return 0;
		1806
		1807	/* This is basically inverse logic of that below - basically,
		1808	* if the object can avoid the move on or slow move, they do so,
		1809	* but can't do it if the alternate movement they are using is
		1810	* blocked. Logic on this seems confusing, but does seem correct.
		1811	*/
		1812	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		1813	return 0;
		1814
		1815	/* The objects have to be checked from top to bottom.
		1816	* Hence, we first go to the top:
		1817	*/
		1818
		1819	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
		1820	{
		1821	/* Trim the search when we find the first other spell effect
		1822	* this helps performance so that if a space has 50 spell objects,
		1823	* we don't need to check all of them.
		1824	*/
		1825	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1826	break;
		1827	}
		1828
		1829	for (; tmp; tmp = tmp->below)
		1830	{
		1831	if (tmp == op)
		1832	continue; /* Can't apply yourself */
		1833
		1834	/* Check to see if one of the movement types should be slowed down.
		1835	* Second check makes sure that the movement types not being slowed
		1836	* (~slow_move) is not blocked on this space - just because the
		1837	* space doesn't slow down swimming (for example), if you can't actually
		1838	* swim on that space, can't use it to avoid the penalty.
		1839	*/
		1840	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1841	{
		1842	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		1843	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1844	{
		1845
		1846	float
		1847	diff = tmp->move_slow_penalty * FABS (op->speed);
		1848
		1849	if (op->type == PLAYER)
		1850	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		1851	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		1852	diff /= 4.0;
		1853
		1854	op->speed_left -= diff;
		1855	}
		1856	}
		1857
		1858	/* Basically same logic as above, except now for actual apply. */
		1859	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		1860	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		1861	{
		1862	move_apply (tmp, op, originator);
		1863
		1864	if (op->destroyed ())
		1865	return 1;
		1866
		1867	/* what the person/creature stepped onto has moved the object
		1868	* someplace new. Don't process any further - if we did,
		1869	* have a feeling strange problems would result.
		1870	*/
		1871	if (op->map != m || op->x != x || op->y != y)
		1872	return 0;
		1873	}
		1874	}
		1875
		1876	return 0;
2100	}	1877	}
2101		1878
2102	/*	1879	/*
2103	* present_arch(arch, map, x, y) searches for any objects with	1880	* present_arch(arch, map, x, y) searches for any objects with
2104	* a matching archetype at the given map and coordinates.	1881	* a matching archetype at the given map and coordinates.
2105	* The first matching object is returned, or NULL if none.	1882	* The first matching object is returned, or NULL if none.
2106	*/	1883	*/
2107		1884
		1885	object *
2108	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1886	present_arch (const archetype *at, maptile *m, int x, int y)
		1887	{
2109	object *tmp;	1888	object *
		1889	tmp;
		1890
2110	if(m==NULL || out_of_map(m,x,y)) {	1891	if (m == NULL || out_of_map (m, x, y))
		1892	{
2111	LOG(llevError,"Present_arch called outside map.\n");	1893	LOG (llevError, "Present_arch called outside map.\n");
2112	return NULL;	1894	return NULL;
2113	}	1895	}
2114	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1896	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2115	if(tmp->arch == at)	1897	if (tmp->arch == at)
2116	return tmp;	1898	return tmp;
2117	return NULL;	1899	return NULL;
2118	}	1900	}
2119		1901
2120	/*	1902	/*
2121	* present(type, map, x, y) searches for any objects with	1903	* present(type, map, x, y) searches for any objects with
2122	* a matching type variable at the given map and coordinates.	1904	* a matching type variable at the given map and coordinates.
2123	* The first matching object is returned, or NULL if none.	1905	* The first matching object is returned, or NULL if none.
2124	*/	1906	*/
2125		1907
		1908	object *
2126	object *present(unsigned char type,mapstruct *m, int x,int y) {	1909	present (unsigned char type, maptile *m, int x, int y)
		1910	{
2127	object *tmp;	1911	object *
		1912	tmp;
		1913
2128	if(out_of_map(m,x,y)) {	1914	if (out_of_map (m, x, y))
		1915	{
2129	LOG(llevError,"Present called outside map.\n");	1916	LOG (llevError, "Present called outside map.\n");
2130	return NULL;	1917	return NULL;
2131	}	1918	}
2132	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1919	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2133	if(tmp->type==type)	1920	if (tmp->type == type)
2134	return tmp;	1921	return tmp;
2135	return NULL;	1922	return NULL;
2136	}	1923	}
2137		1924
2138	/*	1925	/*
2139	* present_in_ob(type, object) searches for any objects with	1926	* present_in_ob(type, object) searches for any objects with
2140	* a matching type variable in the inventory of the given object.	1927	* a matching type variable in the inventory of the given object.
2141	* The first matching object is returned, or NULL if none.	1928	* The first matching object is returned, or NULL if none.
2142	*/	1929	*/
2143		1930
		1931	object *
2144	object *present_in_ob(unsigned char type, const object *op) {	1932	present_in_ob (unsigned char type, const object *op)
		1933	{
2145	object *tmp;	1934	object *
		1935	tmp;
		1936
2146	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1937	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2147	if(tmp->type==type)	1938	if (tmp->type == type)
2148	return tmp;	1939	return tmp;
2149	return NULL;	1940	return NULL;
2150	}	1941	}
2151		1942
2152	/*	1943	/*
…		…
2162	* the object name, not the archetype name. this is so that the	1953	* the object name, not the archetype name. this is so that the
2163	* spell code can use one object type (force), but change it's name	1954	* spell code can use one object type (force), but change it's name
2164	* to be unique.	1955	* to be unique.
2165	*/	1956	*/
2166		1957
		1958	object *
2167	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1959	present_in_ob_by_name (int type, const char *str, const object *op)
		1960	{
2168	object *tmp;	1961	object *
		1962	tmp;
2169		1963
2170	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1964	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1965	{
2171	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1966	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2172	return tmp;	1967	return tmp;
2173	}	1968	}
2174	return NULL;	1969	return NULL;
2175	}	1970	}
2176		1971
2177	/*	1972	/*
2178	* present_arch_in_ob(archetype, object) searches for any objects with	1973	* present_arch_in_ob(archetype, object) searches for any objects with
2179	* a matching archetype in the inventory of the given object.	1974	* a matching archetype in the inventory of the given object.
2180	* The first matching object is returned, or NULL if none.	1975	* The first matching object is returned, or NULL if none.
2181	*/	1976	*/
2182		1977
		1978	object *
2183	object *present_arch_in_ob(const archetype *at, const object *op) {	1979	present_arch_in_ob (const archetype *at, const object *op)
		1980	{
2184	object *tmp;	1981	object *
		1982	tmp;
		1983
2185	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1984	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2186	if( tmp->arch == at)	1985	if (tmp->arch == at)
2187	return tmp;	1986	return tmp;
2188	return NULL;	1987	return NULL;
2189	}	1988	}
2190		1989
2191	/*	1990	/*
2192	* activate recursively a flag on an object inventory	1991	* activate recursively a flag on an object inventory
2193	*/	1992	*/
		1993	void
2194	void flag_inv(object*op, int flag){	1994	flag_inv (object *op, int flag)
		1995	{
2195	object *tmp;	1996	object *
		1997	tmp;
		1998
2196	if(op->inv)	1999	if (op->inv)
2197	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2000	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2001	{
2198	SET_FLAG(tmp, flag);	2002	SET_FLAG (tmp, flag);
2199	flag_inv(tmp,flag);	2003	flag_inv (tmp, flag);
2200	}	2004	}
2201	}/*	2005	} /*
2202	* desactivate recursively a flag on an object inventory	2006	* desactivate recursively a flag on an object inventory
2203	*/	2007	*/
		2008	void
2204	void unflag_inv(object*op, int flag){	2009	unflag_inv (object *op, int flag)
		2010	{
2205	object *tmp;	2011	object *
		2012	tmp;
		2013
2206	if(op->inv)	2014	if (op->inv)
2207	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2015	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2016	{
2208	CLEAR_FLAG(tmp, flag);	2017	CLEAR_FLAG (tmp, flag);
2209	unflag_inv(tmp,flag);	2018	unflag_inv (tmp, flag);
2210	}	2019	}
2211	}	2020	}
2212		2021
2213	/*	2022	/*
2214	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	2023	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2215	* all it's inventory (recursively).	2024	* all it's inventory (recursively).
2216	* If checksums are used, a player will get set_cheat called for	2025	* If checksums are used, a player will get set_cheat called for
2217	* him/her-self and all object carried by a call to this function.	2026	* him/her-self and all object carried by a call to this function.
2218	*/	2027	*/
2219		2028
		2029	void
2220	void set_cheat(object *op) {	2030	set_cheat (object *op)
		2031	{
2221	SET_FLAG(op, FLAG_WAS_WIZ);	2032	SET_FLAG (op, FLAG_WAS_WIZ);
2222	flag_inv(op, FLAG_WAS_WIZ);	2033	flag_inv (op, FLAG_WAS_WIZ);
2223	}	2034	}
2224		2035
2225	/*	2036	/*
2226	* find_free_spot(object, map, x, y, start, stop) will search for	2037	* find_free_spot(object, map, x, y, start, stop) will search for
2227	* a spot at the given map and coordinates which will be able to contain	2038	* a spot at the given map and coordinates which will be able to contain
…		…
2242	* to know if the space in question will block the object. We can't use	2053	* to know if the space in question will block the object. We can't use
2243	* the archetype because that isn't correct if the monster has been	2054	* the archetype because that isn't correct if the monster has been
2244	* customized, changed states, etc.	2055	* customized, changed states, etc.
2245	*/	2056	*/
2246		2057
		2058	int
2247	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2059	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2060	{
		2061	int
		2062	i,
2248	int i,index=0, flag;	2063	index = 0, flag;
		2064	static int
2249	static int altern[SIZEOFFREE];	2065	altern[SIZEOFFREE];
2250		2066
2251	for(i=start;i<stop;i++) {	2067	for (i = start; i < stop; i++)
		2068	{
2252	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2069	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2253	if(!flag)	2070	if (!flag)
2254	altern[index++]=i;	2071	altern[index++] = i;
2255		2072
2256	/* Basically, if we find a wall on a space, we cut down the search size.	2073	/* Basically, if we find a wall on a space, we cut down the search size.
2257	* In this way, we won't return spaces that are on another side of a wall.	2074	* In this way, we won't return spaces that are on another side of a wall.
2258	* This mostly work, but it cuts down the search size in all directions -	2075	* This mostly work, but it cuts down the search size in all directions -
2259	* if the space being examined only has a wall to the north and empty	2076	* if the space being examined only has a wall to the north and empty
2260	* spaces in all the other directions, this will reduce the search space	2077	* spaces in all the other directions, this will reduce the search space
2261	* to only the spaces immediately surrounding the target area, and	2078	* to only the spaces immediately surrounding the target area, and
2262	* won't look 2 spaces south of the target space.	2079	* won't look 2 spaces south of the target space.
2263	*/	2080	*/
2264	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2081	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2265	stop=maxfree[i];	2082	stop = maxfree[i];
2266	}	2083	}
2267	if(!index) return -1;	2084
		2085	if (!index)
		2086	return -1;
		2087
2268	return altern[RANDOM()%index];	2088	return altern[RANDOM () % index];
2269	}	2089	}
2270		2090
2271	/*	2091	/*
2272	* find_first_free_spot(archetype, mapstruct, x, y) works like	2092	* find_first_free_spot(archetype, maptile, x, y) works like
2273	* find_free_spot(), but it will search max number of squares.	2093	* find_free_spot(), but it will search max number of squares.
2274	* But it will return the first available spot, not a random choice.	2094	* But it will return the first available spot, not a random choice.
2275	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2095	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2276	*/	2096	*/
2277		2097
		2098	int
2278	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2099	find_first_free_spot (const object *ob, maptile *m, int x, int y)
		2100	{
		2101	int
2279	int i;	2102	i;
		2103
2280	for(i=0;i<SIZEOFFREE;i++) {	2104	for (i = 0; i < SIZEOFFREE; i++)
		2105	{
2281	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2106	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2282	return i;	2107	return i;
2283	}	2108	}
2284	return -1;	2109	return -1;
2285	}	2110	}
2286		2111
2287	/*	2112	/*
2288	* The function permute(arr, begin, end) randomly reorders the array	2113	* The function permute(arr, begin, end) randomly reorders the array
2289	* arr[begin..end-1].	2114	* arr[begin..end-1].
2290	*/	2115	*/
		2116	static void
2291	static void permute(int *arr, int begin, int end)	2117	permute (int *arr, int begin, int end)
2292	{	2118	{
2293	int i, j, tmp, len;	2119	int
		2120	i,
		2121	j,
		2122	tmp,
		2123	len;
2294		2124
2295	len = end-begin;	2125	len = end - begin;
2296	for(i = begin; i < end; i++)	2126	for (i = begin; i < end; i++)
2297	{	2127	{
2298	j = begin+RANDOM()%len;	2128	j = begin + RANDOM () % len;
2299		2129
2300	tmp = arr[i];	2130	tmp = arr[i];
2301	arr[i] = arr[j];	2131	arr[i] = arr[j];
2302	arr[j] = tmp;	2132	arr[j] = tmp;
2303	}	2133	}
2304	}	2134	}
2305		2135
2306	/* new function to make monster searching more efficient, and effective!	2136	/* new function to make monster searching more efficient, and effective!
2307	* This basically returns a randomized array (in the passed pointer) of	2137	* This basically returns a randomized array (in the passed pointer) of
2308	* the spaces to find monsters. In this way, it won't always look for	2138	* the spaces to find monsters. In this way, it won't always look for
2309	* monsters to the north first. However, the size of the array passed	2139	* monsters to the north first. However, the size of the array passed
2310	* covers all the spaces, so within that size, all the spaces within	2140	* covers all the spaces, so within that size, all the spaces within
2311	* the 3x3 area will be searched, just not in a predictable order.	2141	* the 3x3 area will be searched, just not in a predictable order.
2312	*/	2142	*/
		2143	void
2313	void get_search_arr(int *search_arr)	2144	get_search_arr (int *search_arr)
2314	{	2145	{
		2146	int
2315	int i;	2147	i;
2316		2148
2317	for(i = 0; i < SIZEOFFREE; i++)	2149	for (i = 0; i < SIZEOFFREE; i++)
2318	{	2150	{
2319	search_arr[i] = i;	2151	search_arr[i] = i;
2320	}	2152	}
2321		2153
2322	permute(search_arr, 1, SIZEOFFREE1+1);	2154	permute (search_arr, 1, SIZEOFFREE1 + 1);
2323	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2155	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2324	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2156	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2325	}	2157	}
2326		2158
2327	/*	2159	/*
2328	* find_dir(map, x, y, exclude) will search some close squares in the	2160	* find_dir(map, x, y, exclude) will search some close squares in the
2329	* given map at the given coordinates for live objects.	2161	* given map at the given coordinates for live objects.
…		…
2335	* is actually want is going to try and move there. We need this info	2167	* is actually want is going to try and move there. We need this info
2336	* because we have to know what movement the thing looking to move	2168	* because we have to know what movement the thing looking to move
2337	* there is capable of.	2169	* there is capable of.
2338	*/	2170	*/
2339		2171
		2172	int
2340	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2173	find_dir (maptile *m, int x, int y, object *exclude)
		2174	{
		2175	int
		2176	i,
2341	int i,max=SIZEOFFREE, mflags;	2177	max = SIZEOFFREE, mflags;
		2178
2342	sint16 nx, ny;	2179	sint16 nx, ny;
2343	object *tmp;	2180	object *
2344	mapstruct *mp;	2181	tmp;
		2182	maptile *
		2183	mp;
		2184
2345	MoveType blocked, move_type;	2185	MoveType blocked, move_type;
2346		2186
2347	if (exclude && exclude->head) {	2187	if (exclude && exclude->head)
		2188	{
2348	exclude = exclude->head;	2189	exclude = exclude->head;
2349	move_type = exclude->move_type;	2190	move_type = exclude->move_type;
2350	} else {	2191	}
		2192	else
		2193	{
2351	/* If we don't have anything, presume it can use all movement types. */	2194	/* If we don't have anything, presume it can use all movement types. */
2352	move_type=MOVE_ALL;	2195	move_type = MOVE_ALL;
		2196	}
		2197
		2198	for (i = 1; i < max; i++)
2353	}	2199	{
2354		2200	mp = m;
2355	for(i=1;i<max;i++) {
2356	mp = m;
2357	nx = x + freearr_x[i];	2201	nx = x + freearr_x[i];
2358	ny = y + freearr_y[i];	2202	ny = y + freearr_y[i];
2359		2203
2360	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2204	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2205
2361	if (mflags & P_OUT_OF_MAP) {	2206	if (mflags & P_OUT_OF_MAP)
2362	max = maxfree[i];	2207	max = maxfree[i];
2363	} else {	2208	else
		2209	{
2364	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2210	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
2365		2211
2366	if ((move_type & blocked) == move_type) {	2212	if ((move_type & blocked) == move_type)
2367	max=maxfree[i];	2213	max = maxfree[i];
2368	} else if (mflags & P_IS_ALIVE) {	2214	else if (mflags & P_IS_ALIVE)
		2215	{
2369	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2216	for (tmp = GET_MAP_OB (mp, nx, ny); tmp; tmp = tmp->above)
2370	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2217	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2371	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2218	break;
2372	break;	2219
2373	}	2220	if (tmp)
2374	}
2375	if(tmp) {
2376	return freedir[i];	2221	return freedir[i];
2377	}	2222	}
		2223	}
2378	}	2224	}
2379	}	2225
2380	}
2381	return 0;	2226	return 0;
2382	}	2227	}
2383		2228
2384	/*	2229	/*
2385	* distance(object 1, object 2) will return the square of the	2230	* distance(object 1, object 2) will return the square of the
2386	* distance between the two given objects.	2231	* distance between the two given objects.
2387	*/	2232	*/
2388		2233
		2234	int
2389	int distance(const object *ob1, const object *ob2) {	2235	distance (const object *ob1, const object *ob2)
		2236	{
2390	int i;	2237	int i;
2391	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2238
2392	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2239	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2393	return i;	2240	return i;
2394	}	2241	}
2395		2242
2396	/*	2243	/*
2397	* find_dir_2(delta-x,delta-y) will return a direction in which	2244	* find_dir_2(delta-x,delta-y) will return a direction in which
2398	* an object which has subtracted the x and y coordinates of another	2245	* an object which has subtracted the x and y coordinates of another
2399	* object, needs to travel toward it.	2246	* object, needs to travel toward it.
2400	*/	2247	*/
2401		2248
		2249	int
2402	int find_dir_2(int x, int y) {	2250	find_dir_2 (int x, int y)
		2251	{
2403	int q;	2252	int q;
2404		2253
2405	if(y)	2254	if (y)
2406	q=x*100/y;	2255	q = x * 100 / y;
2407	else if (x)	2256	else if (x)
2408	q= -300*x;	2257	q = -300 * x;
2409	else	2258	else
2410	return 0;	2259	return 0;
2411		2260
2412	if(y>0) {	2261	if (y > 0)
		2262	{
2413	if(q < -242)	2263	if (q < -242)
2414	return 3 ;	2264	return 3;
2415	if (q < -41)	2265	if (q < -41)
2416	return 2 ;	2266	return 2;
2417	if (q < 41)	2267	if (q < 41)
2418	return 1 ;	2268	return 1;
2419	if (q < 242)	2269	if (q < 242)
2420	return 8 ;	2270	return 8;
2421	return 7 ;	2271	return 7;
2422	}	2272	}
2423		2273
2424	if (q < -242)	2274	if (q < -242)
2425	return 7 ;	2275	return 7;
2426	if (q < -41)	2276	if (q < -41)
2427	return 6 ;	2277	return 6;
2428	if (q < 41)	2278	if (q < 41)
2429	return 5 ;	2279	return 5;
2430	if (q < 242)	2280	if (q < 242)
2431	return 4 ;	2281	return 4;
2432		2282
2433	return 3 ;	2283	return 3;
2434	}	2284	}
2435		2285
2436	/*	2286	/*
2437	* absdir(int): Returns a number between 1 and 8, which represent	2287	* absdir(int): Returns a number between 1 and 8, which represent
2438	* the "absolute" direction of a number (it actually takes care of	2288	* the "absolute" direction of a number (it actually takes care of
2439	* "overflow" in previous calculations of a direction).	2289	* "overflow" in previous calculations of a direction).
2440	*/	2290	*/
2441		2291
		2292	int
2442	int absdir(int d) {	2293	absdir (int d)
2443	while(d<1) d+=8;	2294	{
2444	while(d>8) d-=8;	2295	while (d < 1)
		2296	d += 8;
		2297	while (d > 8)
		2298	d -= 8;
2445	return d;	2299	return d;
2446	}	2300	}
2447		2301
2448	/*	2302	/*
2449	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2303	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2450	* between two directions (which are expected to be absolute (see absdir())	2304	* between two directions (which are expected to be absolute (see absdir())
2451	*/	2305	*/
2452		2306
		2307	int
2453	int dirdiff(int dir1, int dir2) {	2308	dirdiff (int dir1, int dir2)
		2309	{
2454	int d;	2310	int
		2311	d;
		2312
2455	d = abs(dir1 - dir2);	2313	d = abs (dir1 - dir2);
2456	if(d>4)	2314	if (d > 4)
2457	d = 8 - d;	2315	d = 8 - d;
2458	return d;	2316	return d;
2459	}	2317	}
2460		2318
2461	/* peterm:	2319	/* peterm:
…		…
2466	* direction 4, 14, or 16 to get back to where we are.	2324	* direction 4, 14, or 16 to get back to where we are.
2467	* Moved from spell_util.c to object.c with the other related direction	2325	* Moved from spell_util.c to object.c with the other related direction
2468	* functions.	2326	* functions.
2469	*/	2327	*/
2470		2328
		2329	int
2471	int reduction_dir[SIZEOFFREE][3] = {	2330	reduction_dir[SIZEOFFREE][3] = {
2472	{0,0,0}, /* 0 */	2331	{0, 0, 0}, /* 0 */
2473	{0,0,0}, /* 1 */	2332	{0, 0, 0}, /* 1 */
2474	{0,0,0}, /* 2 */	2333	{0, 0, 0}, /* 2 */
2475	{0,0,0}, /* 3 */	2334	{0, 0, 0}, /* 3 */
2476	{0,0,0}, /* 4 */	2335	{0, 0, 0}, /* 4 */
2477	{0,0,0}, /* 5 */	2336	{0, 0, 0}, /* 5 */
2478	{0,0,0}, /* 6 */	2337	{0, 0, 0}, /* 6 */
2479	{0,0,0}, /* 7 */	2338	{0, 0, 0}, /* 7 */
2480	{0,0,0}, /* 8 */	2339	{0, 0, 0}, /* 8 */
2481	{8,1,2}, /* 9 */	2340	{8, 1, 2}, /* 9 */
2482	{1,2,-1}, /* 10 */	2341	{1, 2, -1}, /* 10 */
2483	{2,10,12}, /* 11 */	2342	{2, 10, 12}, /* 11 */
2484	{2,3,-1}, /* 12 */	2343	{2, 3, -1}, /* 12 */
2485	{2,3,4}, /* 13 */	2344	{2, 3, 4}, /* 13 */
2486	{3,4,-1}, /* 14 */	2345	{3, 4, -1}, /* 14 */
2487	{4,14,16}, /* 15 */	2346	{4, 14, 16}, /* 15 */
2488	{5,4,-1}, /* 16 */	2347	{5, 4, -1}, /* 16 */
2489	{4,5,6}, /* 17 */	2348	{4, 5, 6}, /* 17 */
2490	{6,5,-1}, /* 18 */	2349	{6, 5, -1}, /* 18 */
2491	{6,20,18}, /* 19 */	2350	{6, 20, 18}, /* 19 */
2492	{7,6,-1}, /* 20 */	2351	{7, 6, -1}, /* 20 */
2493	{6,7,8}, /* 21 */	2352	{6, 7, 8}, /* 21 */
2494	{7,8,-1}, /* 22 */	2353	{7, 8, -1}, /* 22 */
2495	{8,22,24}, /* 23 */	2354	{8, 22, 24}, /* 23 */
2496	{8,1,-1}, /* 24 */	2355	{8, 1, -1}, /* 24 */
2497	{24,9,10}, /* 25 */	2356	{24, 9, 10}, /* 25 */
2498	{9,10,-1}, /* 26 */	2357	{9, 10, -1}, /* 26 */
2499	{10,11,-1}, /* 27 */	2358	{10, 11, -1}, /* 27 */
2500	{27,11,29}, /* 28 */	2359	{27, 11, 29}, /* 28 */
2501	{11,12,-1}, /* 29 */	2360	{11, 12, -1}, /* 29 */
2502	{12,13,-1}, /* 30 */	2361	{12, 13, -1}, /* 30 */
2503	{12,13,14}, /* 31 */	2362	{12, 13, 14}, /* 31 */
2504	{13,14,-1}, /* 32 */	2363	{13, 14, -1}, /* 32 */
2505	{14,15,-1}, /* 33 */	2364	{14, 15, -1}, /* 33 */
2506	{33,15,35}, /* 34 */	2365	{33, 15, 35}, /* 34 */
2507	{16,15,-1}, /* 35 */	2366	{16, 15, -1}, /* 35 */
2508	{17,16,-1}, /* 36 */	2367	{17, 16, -1}, /* 36 */
2509	{18,17,16}, /* 37 */	2368	{18, 17, 16}, /* 37 */
2510	{18,17,-1}, /* 38 */	2369	{18, 17, -1}, /* 38 */
2511	{18,19,-1}, /* 39 */	2370	{18, 19, -1}, /* 39 */
2512	{41,19,39}, /* 40 */	2371	{41, 19, 39}, /* 40 */
2513	{19,20,-1}, /* 41 */	2372	{19, 20, -1}, /* 41 */
2514	{20,21,-1}, /* 42 */	2373	{20, 21, -1}, /* 42 */
2515	{20,21,22}, /* 43 */	2374	{20, 21, 22}, /* 43 */
2516	{21,22,-1}, /* 44 */	2375	{21, 22, -1}, /* 44 */
2517	{23,22,-1}, /* 45 */	2376	{23, 22, -1}, /* 45 */
2518	{45,47,23}, /* 46 */	2377	{45, 47, 23}, /* 46 */
2519	{23,24,-1}, /* 47 */	2378	{23, 24, -1}, /* 47 */
2520	{24,9,-1}}; /* 48 */	2379	{24, 9, -1}
		2380	}; /* 48 */
2521		2381
2522	/* Recursive routine to step back and see if we can	2382	/* Recursive routine to step back and see if we can
2523	* find a path to that monster that we found. If not,	2383	* find a path to that monster that we found. If not,
2524	* we don't bother going toward it. Returns 1 if we	2384	* we don't bother going toward it. Returns 1 if we
2525	* can see a direct way to get it	2385	* can see a direct way to get it
2526	* Modified to be map tile aware -.MSW	2386	* Modified to be map tile aware -.MSW
2527	*/	2387	*/
2528		2388	int
2529
2530	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2389	can_see_monsterP (maptile *m, int x, int y, int dir)
		2390	{
2531	sint16 dx, dy;	2391	sint16 dx, dy;
2532	int mflags;	2392	int mflags;
2533		2393
		2394	if (dir < 0)
2534	if(dir<0) return 0; /* exit condition: invalid direction */	2395	return 0; /* exit condition: invalid direction */
2535		2396
2536	dx = x + freearr_x[dir];	2397	dx = x + freearr_x[dir];
2537	dy = y + freearr_y[dir];	2398	dy = y + freearr_y[dir];
2538		2399
2539	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2400	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2540		2401
2541	/* This functional arguably was incorrect before - it was	2402	/* This functional arguably was incorrect before - it was
2542	* checking for P_WALL - that was basically seeing if	2403	* checking for P_WALL - that was basically seeing if
2543	* we could move to the monster - this is being more	2404	* we could move to the monster - this is being more
2544	* literal on if we can see it. To know if we can actually	2405	* literal on if we can see it. To know if we can actually
2545	* move to the monster, we'd need the monster passed in or	2406	* move to the monster, we'd need the monster passed in or
2546	* at least its move type.	2407	* at least its move type.
2547	*/	2408	*/
2548	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2409	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2410	return 0;
2549		2411
2550	/* yes, can see. */	2412	/* yes, can see. */
2551	if(dir < 9) return 1;	2413	if (dir < 9)
		2414	return 1;
		2415
2552	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2416	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2553	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2417	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2554	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2418	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2555	}	2419	}
2556		2420
2557
2558
2559	/*	2421	/*
2560	* can_pick(picker, item): finds out if an object is possible to be	2422	* can_pick(picker, item): finds out if an object is possible to be
2561	* picked up by the picker. Returnes 1 if it can be	2423	* picked up by the picker. Returnes 1 if it can be
2562	* picked up, otherwise 0.	2424	* picked up, otherwise 0.
2563	*	2425	*
…		…
2565	* core dumps if they do.	2427	* core dumps if they do.
2566	*	2428	*
2567	* Add a check so we can't pick up invisible objects (0.93.8)	2429	* Add a check so we can't pick up invisible objects (0.93.8)
2568	*/	2430	*/
2569		2431
		2432	int
2570	int can_pick(const object *who, const object *item) {	2433	can_pick (const object *who, const object *item)
		2434	{
2571	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2435	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2572	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2436	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2573	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2437	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2574	(who->type==PLAYER||item->weight<who->weight/3));
2575	}	2438	}
2576
2577		2439
2578	/*	2440	/*
2579	* create clone from object to another	2441	* create clone from object to another
2580	*/	2442	*/
		2443	object *
2581	object *object_create_clone (object *asrc) {	2444	object_create_clone (object *asrc)
		2445	{
2582	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2446	object *dst = 0, *tmp, *src, *part, *prev, *item;
2583		2447
2584	if(!asrc) return NULL;	2448	if (!asrc)
		2449	return 0;
		2450
2585	src = asrc;	2451	src = asrc;
2586	if(src->head)	2452	if (src->head)
2587	src = src->head;	2453	src = src->head;
2588		2454
2589	prev = NULL;	2455	prev = 0;
2590	for(part = src; part; part = part->more) {	2456	for (part = src; part; part = part->more)
2591	tmp = get_object();	2457	{
2592	copy_object(part,tmp);	2458	tmp = part->clone ();
2593	tmp->x -= src->x;	2459	tmp->x -= src->x;
2594	tmp->y -= src->y;	2460	tmp->y -= src->y;
		2461
2595	if(!part->head) {	2462	if (!part->head)
		2463	{
2596	dst = tmp;	2464	dst = tmp;
2597	tmp->head = NULL;
2598	} else {
2599	tmp->head = dst;	2465	tmp->head = 0;
2600	}	2466	}
		2467	else
		2468	tmp->head = dst;
		2469
2601	tmp->more = NULL;	2470	tmp->more = 0;
		2471
2602	if(prev)	2472	if (prev)
2603	prev->more = tmp;	2473	prev->more = tmp;
		2474
2604	prev = tmp;	2475	prev = tmp;
2605	}	2476	}
2606	/*** copy inventory ***/	2477
2607	for(item = src->inv; item; item = item->below) {	2478	for (item = src->inv; item; item = item->below)
2608	(void) insert_ob_in_ob(object_create_clone(item),dst);	2479	insert_ob_in_ob (object_create_clone (item), dst);
2609	}
2610		2480
2611	return dst;	2481	return dst;
2612	}
2613
2614	/* return true if the object was destroyed, 0 otherwise */
2615	int was_destroyed (const object *op, tag_t old_tag)
2616	{
2617	/* checking for FLAG_FREED isn't necessary, but makes this function more
2618	* robust */
2619	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2620	}	2482	}
2621		2483
2622	/* GROS - Creates an object using a string representing its content. */	2484	/* GROS - Creates an object using a string representing its content. */
2623	/* Basically, we save the content of the string to a temp file, then call */	2485	/* Basically, we save the content of the string to a temp file, then call */
2624	/* load_object on it. I admit it is a highly inefficient way to make things, */	2486	/* load_object on it. I admit it is a highly inefficient way to make things, */
2625	/* but it was simple to make and allows reusing the load_object function. */	2487	/* but it was simple to make and allows reusing the load_object function. */
2626	/* Remember not to use load_object_str in a time-critical situation. */	2488	/* Remember not to use load_object_str in a time-critical situation. */
2627	/* Also remember that multiparts objects are not supported for now. */	2489	/* Also remember that multiparts objects are not supported for now. */
2628		2490
		2491	object *
2629	object* load_object_str(const char *obstr)	2492	load_object_str (const char *obstr)
2630	{	2493	{
2631	object *op;	2494	object *op;
2632	FILE *tempfile;
2633	char filename[MAX_BUF];	2495	char filename[MAX_BUF];
		2496
2634	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2497	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
		2498
2635	tempfile=fopen(filename,"w");	2499	FILE *tempfile = fopen (filename, "w");
		2500
2636	if (tempfile == NULL)	2501	if (tempfile == NULL)
2637	{	2502	{
2638	LOG(llevError,"Error - Unable to access load object temp file\n");	2503	LOG (llevError, "Error - Unable to access load object temp file\n");
2639	return NULL;	2504	return NULL;
2640	};	2505	}
		2506
2641	fprintf(tempfile,obstr);	2507	fprintf (tempfile, obstr);
2642	fclose(tempfile);	2508	fclose (tempfile);
2643		2509
2644	op=get_object();	2510	op = object::create ();
2645		2511
2646	tempfile=fopen(filename,"r");	2512	object_thawer thawer (filename);
2647	if (tempfile == NULL)	2513
2648	{	2514	if (thawer)
2649	LOG(llevError,"Error - Unable to read object temp file\n");	2515	load_object (thawer, op, 0);
2650	return NULL;	2516
2651	};
2652	load_object(tempfile,op,LO_NEWFILE,0);
2653	LOG(llevDebug," load str completed, object=%s\n",op->name);	2517	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2654	CLEAR_FLAG(op,FLAG_REMOVED);	2518	CLEAR_FLAG (op, FLAG_REMOVED);
2655	fclose(tempfile);	2519
2656	return op;	2520	return op;
2657	}	2521	}
2658		2522
2659	/* This returns the first object in who's inventory that	2523	/* This returns the first object in who's inventory that
2660	* has the same type and subtype match.	2524	* has the same type and subtype match.
2661	* returns NULL if no match.	2525	* returns NULL if no match.
2662	*/	2526	*/
		2527	object *
2663	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2528	find_obj_by_type_subtype (const object *who, int type, int subtype)
2664	{	2529	{
2665	object *tmp;	2530	object *tmp;
2666		2531
2667	for (tmp=who->inv; tmp; tmp=tmp->below)	2532	for (tmp = who->inv; tmp; tmp = tmp->below)
2668	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2533	if (tmp->type == type && tmp->subtype == subtype)
		2534	return tmp;
2669		2535
2670	return NULL;	2536	return NULL;
2671	}	2537	}
2672		2538
2673	/* If ob has a field named key, return the link from the list,	2539	/* If ob has a field named key, return the link from the list,
2674	* otherwise return NULL.	2540	* otherwise return NULL.
2675	*	2541	*
2676	* key must be a passed in shared string - otherwise, this won't	2542	* key must be a passed in shared string - otherwise, this won't
2677	* do the desired thing.	2543	* do the desired thing.
2678	*/	2544	*/
		2545	key_value *
2679	key_value * get_ob_key_link(const object * ob, const char * key) {	2546	get_ob_key_link (const object *ob, const char *key)
		2547	{
2680	key_value * link;	2548	key_value *link;
2681		2549
2682	for (link = ob->key_values; link != NULL; link = link->next) {	2550	for (link = ob->key_values; link != NULL; link = link->next)
2683	if (link->key == key) {	2551	if (link->key == key)
2684	return link;	2552	return link;
2685	}	2553
2686	}
2687
2688	return NULL;	2554	return NULL;
2689	}	2555	}
2690		2556
2691	/*	2557	/*
2692	* Returns the value of op has an extra_field for key, or NULL.	2558	* Returns the value of op has an extra_field for key, or NULL.
2693	*	2559	*
2694	* The argument doesn't need to be a shared string.	2560	* The argument doesn't need to be a shared string.
2695	*	2561	*
2696	* The returned string is shared.	2562	* The returned string is shared.
2697	*/	2563	*/
		2564	const char *
2698	const char * get_ob_key_value(const object * op, const char * const key) {	2565	get_ob_key_value (const object *op, const char *const key)
		2566	{
2699	key_value * link;	2567	key_value *link;
2700	const char * canonical_key;	2568	shstr_cmp canonical_key (key);
		2569
		2570	if (!canonical_key)
2701		2571	{
2702	canonical_key = find_string(key);
2703
2704	if (canonical_key == NULL) {
2705	/* 1. There being a field named key on any object	2572	/* 1. There being a field named key on any object
2706	* implies there'd be a shared string to find.	2573	* implies there'd be a shared string to find.
2707	* 2. Since there isn't, no object has this field.	2574	* 2. Since there isn't, no object has this field.
2708	* 3. Therefore, *this* object doesn't have this field.	2575	* 3. Therefore, *this* object doesn't have this field.
2709	*/	2576	*/
2710	return NULL;	2577	return 0;
2711	}	2578	}
2712		2579
2713	/* This is copied from get_ob_key_link() above -	2580	/* This is copied from get_ob_key_link() above -
2714	* only 4 lines, and saves the function call overhead.	2581	* only 4 lines, and saves the function call overhead.
2715	*/	2582	*/
2716	for (link = op->key_values; link != NULL; link = link->next) {	2583	for (link = op->key_values; link; link = link->next)
2717	if (link->key == canonical_key) {	2584	if (link->key == canonical_key)
2718	return link->value;	2585	return link->value;
2719	}	2586
2720	}	2587	return 0;
2721	return NULL;
2722	}	2588	}
2723		2589
2724		2590
2725	/*	2591	/*
2726	* Updates the canonical_key in op to value.	2592	* Updates the canonical_key in op to value.
…		…
2730	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2596	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2731	* keys.	2597	* keys.
2732	*	2598	*
2733	* Returns TRUE on success.	2599	* Returns TRUE on success.
2734	*/	2600	*/
		2601	int
2735	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2602	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2603	{
		2604	key_value *
2736	key_value * field = NULL, *last=NULL;	2605	field = NULL, *last = NULL;
2737		2606
2738	for (field=op->key_values; field != NULL; field=field->next) {	2607	for (field = op->key_values; field != NULL; field = field->next)
2739	if (field->key != canonical_key) {
2740	last = field;
2741	continue;
2742	}
2743		2608	{
2744	if (field->value) FREE_AND_CLEAR_STR(field->value);	2609	if (field->key != canonical_key)
2745	if (value)	2610	{
2746	field->value = add_string(value);	2611	last = field;
2747	else {	2612	continue;
		2613	}
		2614
		2615	if (value)
		2616	field->value = value;
		2617	else
		2618	{
2748	/* Basically, if the archetype has this key set,	2619	/* Basically, if the archetype has this key set,
2749	* we need to store the null value so when we save	2620	* we need to store the null value so when we save
2750	* it, we save the empty value so that when we load,	2621	* it, we save the empty value so that when we load,
2751	* we get this value back again.	2622	* we get this value back again.
2752	*/	2623	*/
2753	if (get_ob_key_link(&op->arch->clone, canonical_key))	2624	if (get_ob_key_link (&op->arch->clone, canonical_key))
2754	field->value = NULL;	2625	field->value = 0;
2755	else {	2626	else
2756	/* Delete this link */	2627	{
2757	if (field->key) FREE_AND_CLEAR_STR(field->key);	2628	if (last)
2758	if (field->value) FREE_AND_CLEAR_STR(field->value);	2629	last->next = field->next;
2759	if (last) last->next = field->next;	2630	else
2760	else op->key_values = field->next;	2631	op->key_values = field->next;
2761	free(field);	2632
2762	}	2633	delete field;
2763	}	2634	}
		2635	}
2764	return TRUE;	2636	return TRUE;
2765	}	2637	}
2766	/* IF we get here, key doesn't exist */	2638	/* IF we get here, key doesn't exist */
2767		2639
2768	/* No field, we'll have to add it. */	2640	/* No field, we'll have to add it. */
		2641
		2642	if (!add_key)
2769		2643	{
2770	if (!add_key) {
2771	return FALSE;	2644	return FALSE;
2772	}	2645	}
2773	/* There isn't any good reason to store a null	2646	/* There isn't any good reason to store a null
2774	* value in the key/value list. If the archetype has	2647	* value in the key/value list. If the archetype has
2775	* this key, then we should also have it, so shouldn't	2648	* this key, then we should also have it, so shouldn't
2776	* be here. If user wants to store empty strings,	2649	* be here. If user wants to store empty strings,
2777	* should pass in ""	2650	* should pass in ""
2778	*/	2651	*/
2779	if (value == NULL) return TRUE;	2652	if (value == NULL)
2780
2781	field = (key_value *) malloc(sizeof(key_value));
2782
2783	field->key = add_refcount(canonical_key);
2784	field->value = add_string(value);
2785	/* Usual prepend-addition. */
2786	field->next = op->key_values;
2787	op->key_values = field;
2788
2789	return TRUE;	2653	return TRUE;
		2654
		2655	field = new key_value;
		2656
		2657	field->key = canonical_key;
		2658	field->value = value;
		2659	/* Usual prepend-addition. */
		2660	field->next = op->key_values;
		2661	op->key_values = field;
		2662
		2663	return TRUE;
2790	}	2664	}
2791		2665
2792	/*	2666	/*
2793	* Updates the key in op to value.	2667	* Updates the key in op to value.
2794	*	2668	*
…		…
2796	* and not add new ones.	2670	* and not add new ones.
2797	* In general, should be little reason FALSE is ever passed in for add_key	2671	* In general, should be little reason FALSE is ever passed in for add_key
2798	*	2672	*
2799	* Returns TRUE on success.	2673	* Returns TRUE on success.
2800	*/	2674	*/
		2675	int
2801	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2676	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2802	const char * canonical_key = NULL;	2677	{
2803	int floating_ref = FALSE;	2678	shstr key_ (key);
2804	int ret;	2679
		2680	return set_ob_key_value_s (op, key_, value, add_key);
		2681	}
		2682
		2683	object::depth_iterator::depth_iterator (object *container)
		2684	: iterator_base (container)
		2685	{
		2686	while (item->inv)
		2687	item = item->inv;
		2688	}
		2689
		2690	void
		2691	object::depth_iterator::next ()
		2692	{
		2693	if (item->below)
2805		2694	{
2806	/* HACK This mess is to make sure set_ob_value() passes a shared string	2695	item = item->below;
2807	* to get_ob_key_link(), without leaving a leaked refcount.	2696
2808	*/	2697	while (item->inv)
		2698	item = item->inv;
2809		2699	}
2810	canonical_key = find_string(key);	2700	else
2811	if (canonical_key == NULL) {	2701	item = item->env;
2812	canonical_key = add_string(key);
2813	floating_ref = TRUE;
2814	}
2815
2816	ret = set_ob_key_value_s(op, canonical_key, value, add_key);
2817
2818	if (floating_ref) {
2819	free_string(canonical_key);
2820	}
2821
2822	return ret;
2823	}	2702	}
		2703
		2704	// return a suitable string describing an objetc in enough detail to find it
		2705	const char *
		2706	object::debug_desc (char *info) const
		2707	{
		2708	char info2[256 * 3];
		2709	char *p = info;
		2710
		2711	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2712	count,
		2713	&name,
		2714	title ? " " : "",
		2715	title ? (const char *)title : "");
		2716
		2717	if (env)
		2718	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2719
		2720	if (map)
		2721	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2722
		2723	return info;
		2724	}
		2725
		2726	const char *
		2727	object::debug_desc () const
		2728	{
		2729	static char info[256 * 3];
		2730	return debug_desc (info);
		2731	}
		2732

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