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

Comparing deliantra/server/common/object.C (file contents):
Revision 1.1 by elmex, Sun Aug 13 17:16:00 2006 UTC vs.
Revision 1.81 by root, Sat Dec 23 13:56:25 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.1 2006/08/13 17:16:00 elmex Exp $";
4	*/
5
6	/*	1	/*
7	CrossFire, A Multiplayer game for X-windows	2	CrossFire, A Multiplayer game for X-windows
8		3
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	5	Copyright (C) 1992 Frank Tore Johansen
…		…
21		16
22	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software	18	along with this program; if not, write to the Free Software
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25		20
26	The authors can be reached via e-mail at crossfire-devel@real-time.com	21	The authors can be reached via e-mail at <crossfire@schmorp.de>
27	*/	22	*/
28		23
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying	25	sub/add_weight will transcend the environment updating the carrying
31	variable. */	26	variable. */
32	#include <global.h>	27	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	28	#include <stdio.h>
35	#include <sys/types.h>	29	#include <sys/types.h>
36	#include <sys/uio.h>	30	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	31	#include <object.h>
39	#include <funcpoint.h>	32	#include <funcpoint.h>
40	#include <skills.h>
41	#include <loader.h>	33	#include <loader.h>
42	#ifdef MEMORY_DEBUG	34
43	int nroffreeobjects = 0;	35	#include <bitset>
		36
44	int nrofallocobjects = 0;	37	int nrofallocobjects = 0;
45	#undef OBJ_EXPAND	38	static UUID uuid;
46	#define OBJ_EXPAND 1	39	const uint64 UUID_SKIP = 1<<19;
47	#else
48	object objarray[STARTMAX]; /* All objects, allocated this way at first */
49	int nroffreeobjects = STARTMAX; /* How many OBs allocated and free (free) */
50	int nrofallocobjects = STARTMAX; /* How many OBs allocated (free + used) */
51	#endif
52		40
53	object *objects; /* Pointer to the list of used objects */
54	object *free_objects; /* Pointer to the list of unused objects */
55	object *active_objects; /* List of active objects that need to be processed */	41	object *active_objects; /* List of active objects that need to be processed */
56		42
57	void (*object_free_callback)(object *ob);	43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
58
59	short freearr_x[SIZEOFFREE]=
60	{0,0,1,1,1,0,-1,-1,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,-2,-2,-2,-1,
61	0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3,-3,-3,-3,-3,-2,-1};	44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
62	short freearr_y[SIZEOFFREE]=	45	};
63	{0,-1,-1,0,1,1,1,0,-1,-2,-2,-2,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,	46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
64	-3,-3,-3,-3,-2,-1,0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3};	47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
65	int maxfree[SIZEOFFREE]=	48	};
66	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,	49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
67	48,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49};	50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		51	};
68	int freedir[SIZEOFFREE]= {	52	int freedir[SIZEOFFREE] = {
69	0,1,2,3,4,5,6,7,8,1,2,2,2,3,4,4,4,5,6,6,6,7,8,8,8,	53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
70	1,2,2,2,2,2,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,8};	54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		55	};
71		56
		57	static void
		58	write_uuid (void)
		59	{
		60	char filename1[MAX_BUF], filename2[MAX_BUF];
		61
		62	sprintf (filename1, "%s/uuid", settings.localdir);
		63	sprintf (filename2, "%s/uuid~", settings.localdir);
		64
		65	FILE *fp;
		66
		67	if (!(fp = fopen (filename2, "w")))
		68	{
		69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		70	return;
		71	}
		72
		73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		74	fclose (fp);
		75	rename (filename2, filename1);
		76	}
		77
		78	static void
		79	read_uuid (void)
		80	{
		81	char filename[MAX_BUF];
		82
		83	sprintf (filename, "%s/uuid", settings.localdir);
		84
		85	FILE *fp;
		86
		87	if (!(fp = fopen (filename, "r")))
		88	{
		89	if (errno == ENOENT)
		90	{
		91	LOG (llevInfo, "RESET uid to 1\n");
		92	uuid.seq = 0;
		93	write_uuid ();
		94	return;
		95	}
		96
		97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		98	_exit (1);
		99	}
		100
		101	int version;
		102	unsigned long long uid;
		103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		104	{
		105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		106	_exit (1);
		107	}
		108
		109	uuid.seq = uid;
		110	write_uuid ();
		111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		112	fclose (fp);
		113	}
		114
		115	UUID
		116	gen_uuid ()
		117	{
		118	UUID uid;
		119
		120	uid.seq = ++uuid.seq;
		121
		122	if (!(uuid.seq & (UUID_SKIP - 1)))
		123	write_uuid ();
		124
		125	return uid;
		126	}
		127
		128	void
		129	init_uuid ()
		130	{
		131	read_uuid ();
		132	}
72		133
73	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		135	static int
74	static int compare_ob_value_lists_one(const object * wants, const object * has) {	136	compare_ob_value_lists_one (const object *wants, const object *has)
		137	{
75	key_value * wants_field;	138	key_value *wants_field;
76		139
77	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
78	* objects with lists are rare, and lists stay short. If not, use a	141	* objects with lists are rare, and lists stay short. If not, use a
79	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
80	*/	143	*/
81		144
82	/* For each field in wants, */	145	/* For each field in wants, */
83	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	146	for (wants_field = wants->key_values; wants_field != 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->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
176	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	227	|| ob1->arch != ob2->arch
177	* being locked in inventory should prevent merging.	228	|| ob1->name != ob2->name
178	* 0x4 in flags3 is CLIENT_SENT	229	|| ob1->title != ob2->title
179	*/	230	|| ob1->msg != ob2->msg
180	if ((ob1->arch != ob2->arch) ||	231	|| ob1->weight != ob2->weight
181	(ob1->flags[0] != ob2->flags[0]) ||
182	(ob1->flags[1] != ob2->flags[1]) ||
183	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||
184	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
185	(ob1->name != ob2->name) ||
186	(ob1->title != ob2->title) ||
187	(ob1->msg != ob2->msg) ||
188	(ob1->weight != ob2->weight) ||
189	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||	232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
190	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||	233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
191	(ob1->attacktype != ob2->attacktype) ||	234	|| ob1->attacktype != ob2->attacktype
192	(ob1->magic != ob2->magic) ||	235	|| ob1->magic != ob2->magic
193	(ob1->slaying != ob2->slaying) ||	236	|| ob1->slaying != ob2->slaying
194	(ob1->skill != ob2->skill) ||	237	|| ob1->skill != ob2->skill
195	(ob1->value != ob2->value) ||	238	|| ob1->value != ob2->value
196	(ob1->animation_id != ob2->animation_id) ||	239	|| ob1->animation_id != ob2->animation_id
197	(ob1->client_type != ob2->client_type) ||	240	|| ob1->client_type != ob2->client_type
198	(ob1->materialname != ob2->materialname) ||	241	|| ob1->materialname != ob2->materialname
199	(ob1->lore != ob2->lore) ||	242	|| ob1->lore != ob2->lore
200	(ob1->subtype != ob2->subtype) ||	243	|| ob1->subtype != ob2->subtype
201	(ob1->move_type != ob2->move_type) ||	244	|| ob1->move_type != ob2->move_type
202	(ob1->move_block != ob2->move_block) ||	245	|| ob1->move_block != ob2->move_block
203	(ob1->move_allow != ob2->move_allow) ||	246	|| ob1->move_allow != ob2->move_allow
204	(ob1->move_on != ob2->move_on) ||	247	|| ob1->move_on != ob2->move_on
205	(ob1->move_off != ob2->move_off) ||	248	|| ob1->move_off != ob2->move_off
206	(ob1->move_slow != ob2->move_slow) ||	249	|| ob1->move_slow != ob2->move_slow
207	(ob1->move_slow_penalty != ob2->move_slow_penalty)	250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
208	)
209	return 0;	251	return 0;
210		252
		253	/* This is really a spellbook check - really, we should
		254	* check all objects in the inventory.
		255	*/
		256	if (ob1->inv || ob2->inv)
		257	{
		258	/* if one object has inventory but the other doesn't, not equiv */
		259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
		260	return 0;
		261
		262	/* Now check to see if the two inventory objects could merge */
		263	if (!object::can_merge (ob1->inv, ob2->inv))
		264	return 0;
		265
		266	/* inventory ok - still need to check rest of this object to see
		267	* if it is valid.
		268	*/
		269	}
		270
211	/* Don't merge objects that are applied. With the new 'body' code,	271	/* Don't merge objects that are applied. With the new 'body' code,
212	* it is possible for most any character to have more than one of	272	* it is possible for most any character to have more than one of
213	* some items equipped, and we don't want those to merge.	273	* some items equipped, and we don't want those to merge.
214	*/	274	*/
215	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	275	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
216	return 0;	276	return 0;
217		277
		278	/* Note sure why the following is the case - either the object has to
		279	* be animated or have a very low speed. Is this an attempted monster
		280	* check?
		281	*/
		282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
		283	return 0;
		284
218	switch (ob1->type) {	285	switch (ob1->type)
		286	{
219	case SCROLL:	287	case SCROLL:
220	if (ob1->level != ob2->level) return 0;	288	if (ob1->level != ob2->level)
		289	return 0;
221	break;	290	break;
222
223	}	291	}
		292
224	if (ob1->key_values != NULL || ob2->key_values != NULL) {	293	if (ob1->key_values != NULL || ob2->key_values != NULL)
		294	{
225	/* At least one of these has key_values. */	295	/* At least one of these has key_values. */
226	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {	296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
227	/* One has fields, but the other one doesn't. */	297	/* One has fields, but the other one doesn't. */
228	return 0;	298	return 0;
229	} else if (!compare_ob_value_lists(ob1, ob2)) {	299	else if (!compare_ob_value_lists (ob1, ob2))
230	return 0;	300	return 0;
231	}	301	}
		302
		303	//TODO: generate an event or call into perl for additional checks
		304	if (ob1->self || ob2->self)
232	}	305	{
		306	ob1->optimise ();
		307	ob2->optimise ();
233		308
		309	if (ob1->self || ob2->self)
		310	return 0;
		311	}
		312
234	/* Everything passes, must be OK. */	313	/* Everything passes, must be OK. */
235	return 1;	314	return 1;
236	}	315	}
237		316
238	/*	317	/*
239	* sum_weight() is a recursive function which calculates the weight	318	* sum_weight() is a recursive function which calculates the weight
240	* an object is carrying. It goes through in figures out how much	319	* an object is carrying. It goes through in figures out how much
241	* containers are carrying, and sums it up.	320	* containers are carrying, and sums it up.
242	*/	321	*/
243	signed long sum_weight(object *op) {	322	long
		323	sum_weight (object *op)
		324	{
244	signed long sum;	325	long sum;
245	object *inv;	326	object *inv;
		327
246	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		329	{
247	if (inv->inv)	330	if (inv->inv)
248	sum_weight(inv);	331	sum_weight (inv);
249	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
250	}	333	}
		334
251	if (op->type == CONTAINER && op->stats.Str)	335	if (op->type == CONTAINER && op->stats.Str)
252	sum = (sum * (100 - op->stats.Str))/100;	336	sum = (sum * (100 - op->stats.Str)) / 100;
		337
253	if(op->carrying != sum)	338	if (op->carrying != sum)
254	op->carrying = sum;	339	op->carrying = sum;
		340
255	return sum;	341	return sum;
256	}	342	}
257		343
258	/**	344	/**
259	* Return the outermost environment object for a given object.	345	* Return the outermost environment object for a given object.
260	*/	346	*/
261		347
		348	object *
262	object *object_get_env_recursive (object *op) {	349	object_get_env_recursive (object *op)
		350	{
263	while (op->env != NULL)	351	while (op->env != NULL)
264	op = op->env;	352	op = op->env;
265	return op;	353	return op;
266	}
267
268	/*
269	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
270	* a better check. We basically keeping traversing up until we can't
271	* or find a player.
272	*/
273
274	object *is_player_inv (object *op) {
275	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
276	if (op->env==op)
277	op->env = NULL;
278	return op;
279	}	354	}
280		355
281	/*	356	/*
282	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	357	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
283	* Some error messages.	358	* Some error messages.
284	* The result of the dump is stored in the static global errmsg array.	359	* The result of the dump is stored in the static global errmsg array.
285	*/	360	*/
286		361
287	void dump_object2(object *op) {	362	char *
288	char *cp;
289	/* object *tmp;*/
290
291	if(op->arch!=NULL) {
292	strcat(errmsg,"arch ");
293	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
294	strcat(errmsg,"\n");
295	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
296	strcat(errmsg,cp);
297	#if 0
298	/* Don't dump player diffs - they are too long, mostly meaningless, and
299	* will overflow the buffer.
300	* Changed so that we don't dump inventory either. This may
301	* also overflow the buffer.
302	*/
303	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
304	strcat(errmsg,cp);
305	for (tmp=op->inv; tmp; tmp=tmp->below)
306	dump_object2(tmp);
307	#endif
308	strcat(errmsg,"end\n");
309	} else {
310	strcat(errmsg,"Object ");
311	if (op->name==NULL) strcat(errmsg, "(null)");
312	else strcat(errmsg,op->name);
313	strcat(errmsg,"\n");
314	#if 0
315	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
316	strcat(errmsg,cp);
317	for (tmp=op->inv; tmp; tmp=tmp->below)
318	dump_object2(tmp);
319	#endif
320	strcat(errmsg,"end\n");
321	}
322	}
323
324	/*
325	* Dumps an object. Returns output in the static global errmsg array.
326	*/
327
328	void dump_object(object *op) {	363	dump_object (object *op)
329	if(op==NULL) {
330	strcpy(errmsg,"[NULL pointer]");
331	return;
332	}
333	errmsg[0]='\0';
334	dump_object2(op);
335	}
336
337	/* GROS - Dumps an object. Return the result into a string */
338	/* Note that no checking is done for the validity of the target string, so */
339	/* you need to be sure that you allocated enough space for it. */
340	void dump_me(object *op, char *outstr)
341	{	364	{
342	char *cp;	365	if (!op)
		366	return strdup ("[NULLOBJ]");
343		367
344	if(op==NULL)	368	object_freezer freezer;
345	{	369	save_object (freezer, op, 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
579
580	/*	472	/*
581	* clear_object() frees everything allocated by an object, and also
582	* clears all variables and flags to default settings.
583	*/
584
585	void clear_object(object *op) {
586
587	event *evt;
588	event *evt2;
589
590	/* redo this to be simpler/more efficient. Was also seeing
591	* crashes in the old code. Move this to the top - am
592	* seeing periodic crashes in this code, and would like to have
593	* as much info available as possible (eg, object name).
594	*/
595	for (evt = op->events; evt; evt=evt2) {
596	evt2 = evt->next;
597
598	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
599	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
600	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
601
602	free(evt);
603	}
604	op->events = NULL;
605
606	free_key_values(op);
607
608	/* the memset will clear all these values for us, but we need
609	* to reduce the refcount on them.
610	*/
611	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);
612	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);
613	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);
614	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);
615	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);
616	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);
617	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);
618	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);
619	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);
620
621
622	memset((void*)op, 0, sizeof (object_special));
623	/* Below here, we clear things that are not done by the memset,
624	* or set default values that are not zero.
625	*/
626	/* This is more or less true */
627	SET_FLAG(op, FLAG_REMOVED);
628
629
630	op->contr = NULL;
631	op->below=NULL;
632	op->above=NULL;
633	op->inv=NULL;
634	op->events=NULL;
635	op->container=NULL;
636	op->env=NULL;
637	op->more=NULL;
638	op->head=NULL;
639	op->map=NULL;
640	op->refcount=0;
641	op->active_next = NULL;
642	op->active_prev = NULL;
643	/* What is not cleared is next, prev, and count */
644
645	op->expmul=1.0;
646	op->face = blank_face;
647	op->attacked_by_count = (tag_t) -1;
648	if (settings.casting_time)
649	op->casting_time = -1;
650
651	}
652
653	/*
654	* copy object first frees everything allocated by the second object,	473	* copy_to first frees everything allocated by the dst object,
655	* and then copies the contends of the first object into the second	474	* and then copies the contents of itself into the second
656	* object, allocating what needs to be allocated. Basically, any	475	* object, allocating what needs to be allocated. Basically, any
657	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	476	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
658	* if the first object is freed, the pointers in the new object	477	* if the first object is freed, the pointers in the new object
659	* will point at garbage.	478	* will point at garbage.
660	*/	479	*/
		480	void
		481	object::copy_to (object *dst)
		482	{
		483	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
		484	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
661		485
662	void copy_object(object *op2, object *op) {	486	*(object_copy *)dst = *this;
663	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);
664	event *evt, *evt2, *evt_new;
665		487
666	/* Decrement the refcounts, but don't bother zeroing the fields;	488	if (self || cb)
667	they'll be overwritten by memcpy. */	489	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
668	if(op->name!=NULL) free_string(op->name);
669	if(op->name_pl!=NULL) free_string(op->name_pl);
670	if(op->title!=NULL) free_string(op->title);
671	if(op->race!=NULL) free_string(op->race);
672	if(op->slaying!=NULL) free_string(op->slaying);
673	if(op->skill!=NULL) free_string(op->skill);
674	if(op->msg!=NULL) free_string(op->msg);
675	if(op->lore!=NULL) free_string(op->lore);
676	if(op->materialname != NULL) free_string(op->materialname);
677	if(op->custom_name != NULL) free_string(op->custom_name);
678		490
679	/* Basically, same code as from clear_object() */	491	if (is_freed)
680	for (evt = op->events; evt; evt=evt2) {	492	SET_FLAG (dst, FLAG_FREED);
681	evt2 = evt->next;
682		493
683	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);	494	if (is_removed)
684	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);	495	SET_FLAG (dst, FLAG_REMOVED);
685	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
686		496
687	free(evt);	497	if (speed < 0)
688	}
689	op->events = NULL;
690
691	free_key_values(op);
692
693	*(object_special *)op = *(object_special *)op2;
694
695	if(is_freed) SET_FLAG(op,FLAG_FREED);
696	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
697	if(op->name!=NULL) add_refcount(op->name);
698	if(op->name_pl!=NULL) add_refcount(op->name_pl);
699	if(op->title!=NULL) add_refcount(op->title);
700	if(op->race!=NULL) add_refcount(op->race);
701	if(op->slaying!=NULL) add_refcount(op->slaying);
702	if(op->skill!=NULL) add_refcount(op->skill);
703	if(op->lore!=NULL) add_refcount(op->lore);
704	if(op->msg!=NULL) add_refcount(op->msg);
705	if(op->custom_name!=NULL) add_refcount(op->custom_name);
706	if (op->materialname != NULL) add_refcount(op->materialname);
707
708	if((op2->speed<0) && !editor)
709	op->speed_left=op2->speed_left-RANDOM()%200/100.0;	498	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
710		499
711	/* Copy over event information */
712	evt2 = NULL;
713	for (evt = op2->events; evt; evt=evt->next) {
714	evt_new = (event *) malloc(sizeof(event));
715	memcpy(evt_new, evt, sizeof(event));
716	if (evt_new->hook) add_refcount(evt_new->hook);
717	if (evt_new->plugin) add_refcount(evt_new->plugin);
718	if (evt_new->options) add_refcount(evt_new->options);
719	evt_new->next = NULL;
720
721	/* Try to be a little clever here, and store away the
722	* last event we copied, so that its simpler to update the
723	* pointer.
724	*/
725	if (evt2)
726	evt2->next = evt_new;
727	else
728	op->events = evt_new;
729
730	evt2 = evt_new;
731	}
732	/* Copy over key_values, if any. */	500	/* Copy over key_values, if any. */
733	if (op2->key_values != NULL) {	501	if (key_values)
734	key_value * tail = NULL;	502	{
		503	key_value *tail = 0;
735	key_value * i;	504	key_value *i;
736		505
737	op->key_values = NULL;	506	dst->key_values = 0;
738		507
739	for (i = op2->key_values; i != NULL; i = i->next) {	508	for (i = key_values; i; i = i->next)
740	key_value * new_link = (key_value *) malloc(sizeof(key_value));	509	{
		510	key_value *new_link = new key_value;
741		511
742	new_link->next = NULL;	512	new_link->next = 0;
743	new_link->key = add_refcount(i->key);	513	new_link->key = i->key;
744	if (i->value)	514	new_link->value = i->value;
745	new_link->value = add_refcount(i->value);
746	else
747	new_link->value = NULL;
748		515
749	/* Try and be clever here, too. */	516	/* Try and be clever here, too. */
750	if (op->key_values == NULL) {	517	if (!dst->key_values)
751	op->key_values = new_link;	518	{
752	tail = new_link;	519	dst->key_values = new_link;
753	} else {	520	tail = new_link;
754	tail->next = new_link;	521	}
755	tail = new_link;	522	else
		523	{
		524	tail->next = new_link;
		525	tail = new_link;
		526	}
		527	}
756	}	528	}
757	}	529
758	}
759
760	update_ob_speed(op);	530	update_ob_speed (dst);
761	}	531	}
762		532
763	/*
764	* expand_objects() allocates more objects for the list of unused objects.
765	* It is called from get_object() if the unused list is empty.
766	*/
767
768	void expand_objects(void) {
769	int i;
770	object *obj;
771	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));
772
773	if(obj==NULL)
774	fatal(OUT_OF_MEMORY);
775	free_objects=obj;
776	obj[0].prev=NULL;
777	obj[0].next= &obj[1],
778	SET_FLAG(&(obj[0]), FLAG_REMOVED);
779	SET_FLAG(&(obj[0]), FLAG_FREED);
780
781	for(i=1;i<OBJ_EXPAND-1;i++) {
782	obj[i].next= &obj[i+1],
783	obj[i].prev= &obj[i-1],
784	SET_FLAG(&(obj[i]), FLAG_REMOVED);
785	SET_FLAG(&(obj[i]), FLAG_FREED);
786	}
787	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
788	obj[OBJ_EXPAND-1].next=NULL,
789	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
790	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
791
792	nrofallocobjects += OBJ_EXPAND;
793	nroffreeobjects += OBJ_EXPAND;
794	}
795
796	/*
797	* get_object() grabs an object from the list of unused objects, makes
798	* sure it is initialised, and returns it.
799	* If there are no free objects, expand_objects() is called to get more.
800	*/
801
802	object *get_object(void) {
803	object *op;	533	object *
804		534	object::clone ()
805	if(free_objects==NULL) {	535	{
806	expand_objects();	536	object *neu = create ();
807	}	537	copy_to (neu);
808	op=free_objects;
809	#ifdef MEMORY_DEBUG
810	/* The idea is hopefully by doing a realloc, the memory
811	* debugging program will now use the current stack trace to
812	* report leaks.
813	*/
814	op = realloc(op, sizeof(object));
815	SET_FLAG(op, FLAG_REMOVED);
816	SET_FLAG(op, FLAG_FREED);
817	#endif
818
819	if(!QUERY_FLAG(op,FLAG_FREED)) {
820	LOG(llevError,"Fatal: Getting busy object.\n");
821	}
822	free_objects=op->next;
823	if(free_objects!=NULL)
824	free_objects->prev=NULL;
825	op->count= ++ob_count;
826	op->name=NULL;
827	op->name_pl=NULL;
828	op->title=NULL;
829	op->race=NULL;
830	op->slaying=NULL;
831	op->skill = NULL;
832	op->lore=NULL;
833	op->msg=NULL;
834	op->materialname=NULL;
835	op->next=objects;
836	op->prev=NULL;
837	op->active_next = NULL;
838	op->active_prev = NULL;
839	if(objects!=NULL)
840	objects->prev=op;
841	objects=op;
842	clear_object(op);
843	SET_FLAG(op,FLAG_REMOVED);
844	nroffreeobjects--;
845	return op;	538	return neu;
846	}	539	}
847		540
848	/*	541	/*
849	* If an object with the IS_TURNABLE() flag needs to be turned due	542	* If an object with the IS_TURNABLE() flag needs to be turned due
850	* to the closest player being on the other side, this function can	543	* to the closest player being on the other side, this function can
851	* be called to update the face variable, _and_ how it looks on the map.	544	* be called to update the face variable, _and_ how it looks on the map.
852	*/	545	*/
853		546
		547	void
854	void update_turn_face(object *op) {	548	update_turn_face (object *op)
		549	{
855	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	550	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
856	return;	551	return;
857	SET_ANIMATION(op, op->direction);	552	SET_ANIMATION (op, op->direction);
858	update_object(op,UP_OBJ_FACE);	553	update_object (op, UP_OBJ_FACE);
859	}	554	}
860		555
861	/*	556	/*
862	* Updates the speed of an object. If the speed changes from 0 to another	557	* Updates the speed of an object. If the speed changes from 0 to another
863	* value, or vice versa, then add/remove the object from the active list.	558	* value, or vice versa, then add/remove the object from the active list.
864	* This function needs to be called whenever the speed of an object changes.	559	* This function needs to be called whenever the speed of an object changes.
865	*/	560	*/
866		561	void
867	void update_ob_speed(object *op) {	562	update_ob_speed (object *op)
		563	{
868	extern int arch_init;	564	extern int arch_init;
869		565
870	/* No reason putting the archetypes objects on the speed list,	566	/* No reason putting the archetypes objects on the speed list,
871	* since they never really need to be updated.	567	* since they never really need to be updated.
872	*/	568	*/
873		569
874	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	570	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		571	{
875	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	572	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
876	#ifdef MANY_CORES	573	#ifdef MANY_CORES
877	abort();	574	abort ();
878	#else	575	#else
879	op->speed = 0;	576	op->speed = 0;
880	#endif	577	#endif
881	}	578	}
		579
882	if (arch_init) {	580	if (arch_init)
883	return;
884	}
885	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
886	/* If already on active list, don't do anything */
887	if (op->active_next || op->active_prev || op==active_objects)
888	return;	581	return;
889		582
		583	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		584	{
		585	/* If already on active list, don't do anything */
		586	if (op->active_next || op->active_prev || op == active_objects)
		587	return;
		588
890	/* process_events() expects us to insert the object at the beginning	589	/* process_events() expects us to insert the object at the beginning
891	* of the list. */	590	* of the list. */
892	op->active_next = active_objects;	591	op->active_next = active_objects;
		592
893	if (op->active_next!=NULL)	593	if (op->active_next != NULL)
894	op->active_next->active_prev = op;	594	op->active_next->active_prev = op;
		595
895	active_objects = op;	596	active_objects = op;
		597	}
		598	else
896	}	599	{
897	else {
898	/* If not on the active list, nothing needs to be done */	600	/* If not on the active list, nothing needs to be done */
899	if (!op->active_next && !op->active_prev && op!=active_objects)	601	if (!op->active_next && !op->active_prev && op != active_objects)
900	return;	602	return;
901		603
902	if (op->active_prev==NULL) {	604	if (op->active_prev == NULL)
		605	{
903	active_objects = op->active_next;	606	active_objects = op->active_next;
		607
904	if (op->active_next!=NULL)	608	if (op->active_next != NULL)
905	op->active_next->active_prev = NULL;	609	op->active_next->active_prev = NULL;
906	}	610	}
907	else {	611	else
		612	{
908	op->active_prev->active_next = op->active_next;	613	op->active_prev->active_next = op->active_next;
		614
909	if (op->active_next)	615	if (op->active_next)
910	op->active_next->active_prev = op->active_prev;	616	op->active_next->active_prev = op->active_prev;
911	}	617	}
		618
912	op->active_next = NULL;	619	op->active_next = NULL;
913	op->active_prev = NULL;	620	op->active_prev = NULL;
914	}	621	}
915	}	622	}
916		623
917	/* This function removes object 'op' from the list of active	624	/* This function removes object 'op' from the list of active
918	* objects.	625	* objects.
…		…
920	* reference maps where you don't want an object that isn't	627	* reference maps where you don't want an object that isn't
921	* in play chewing up cpu time getting processed.	628	* in play chewing up cpu time getting processed.
922	* The reverse of this is to call update_ob_speed, which	629	* The reverse of this is to call update_ob_speed, which
923	* will do the right thing based on the speed of the object.	630	* will do the right thing based on the speed of the object.
924	*/	631	*/
		632	void
925	void remove_from_active_list(object *op)	633	remove_from_active_list (object *op)
926	{	634	{
927	/* If not on the active list, nothing needs to be done */	635	/* If not on the active list, nothing needs to be done */
928	if (!op->active_next && !op->active_prev && op!=active_objects)	636	if (!op->active_next && !op->active_prev && op != active_objects)
929	return;	637	return;
930		638
931	if (op->active_prev==NULL) {	639	if (op->active_prev == NULL)
		640	{
932	active_objects = op->active_next;	641	active_objects = op->active_next;
933	if (op->active_next!=NULL)	642	if (op->active_next != NULL)
934	op->active_next->active_prev = NULL;	643	op->active_next->active_prev = NULL;
		644	}
		645	else
935	}	646	{
936	else {
937	op->active_prev->active_next = op->active_next;	647	op->active_prev->active_next = op->active_next;
938	if (op->active_next)	648	if (op->active_next)
939	op->active_next->active_prev = op->active_prev;	649	op->active_next->active_prev = op->active_prev;
940	}	650	}
941	op->active_next = NULL;	651	op->active_next = NULL;
942	op->active_prev = NULL;	652	op->active_prev = NULL;
943	}	653	}
944		654
945	/*	655	/*
946	* update_object() updates the array which represents the map.	656	* update_object() updates the the map.
947	* It takes into account invisible objects (and represent squares covered	657	* It takes into account invisible objects (and represent squares covered
948	* by invisible objects by whatever is below them (unless it's another	658	* by invisible objects by whatever is below them (unless it's another
949	* invisible object, etc...)	659	* invisible object, etc...)
950	* If the object being updated is beneath a player, the look-window	660	* If the object being updated is beneath a player, the look-window
951	* of that player is updated (this might be a suboptimal way of	661	* of that player is updated (this might be a suboptimal way of
952	* updating that window, though, since update_object() is called _often_)	662	* updating that window, though, since update_object() is called _often_)
953	*	663	*
954	* action is a hint of what the caller believes need to be done.	664	* action is a hint of what the caller believes need to be done.
955	* For example, if the only thing that has changed is the face (due to
956	* an animation), we don't need to call update_position until that actually
957	* comes into view of a player. OTOH, many other things, like addition/removal
958	* of walls or living creatures may need us to update the flags now.
959	* current action are:	665	* current action are:
960	* UP_OBJ_INSERT: op was inserted	666	* UP_OBJ_INSERT: op was inserted
961	* UP_OBJ_REMOVE: op was removed	667	* UP_OBJ_REMOVE: op was removed
962	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	668	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
963	* as that is easier than trying to look at what may have changed.	669	* as that is easier than trying to look at what may have changed.
964	* UP_OBJ_FACE: only the objects face has changed.	670	* UP_OBJ_FACE: only the objects face has changed.
965	*/	671	*/
966		672	void
967	void update_object(object *op, int action) {	673	update_object (object *op, int action)
968	int update_now=0, flags;	674	{
969	MoveType move_on, move_off, move_block, move_slow;	675	MoveType move_on, move_off, move_block, move_slow;
970		676
971	if (op == NULL) {	677	if (op == NULL)
		678	{
972	/* this should never happen */	679	/* this should never happen */
973	LOG(llevDebug,"update_object() called for NULL object.\n");	680	LOG (llevDebug, "update_object() called for NULL object.\n");
974	return;	681	return;
975	}
976		682	}
977	if(op->env!=NULL) {	683
		684	if (op->env)
		685	{
978	/* Animation is currently handled by client, so nothing	686	/* Animation is currently handled by client, so nothing
979	* to do in this case.	687	* to do in this case.
980	*/	688	*/
981	return;	689	return;
982	}	690	}
983		691
984	/* If the map is saving, don't do anything as everything is	692	/* If the map is saving, don't do anything as everything is
985	* going to get freed anyways.	693	* going to get freed anyways.
986	*/	694	*/
987	if (!op->map || op->map->in_memory == MAP_SAVING) return;	695	if (!op->map || op->map->in_memory == MAP_SAVING)
988		696	return;
		697
989	/* make sure the object is within map boundaries */	698	/* make sure the object is within map boundaries */
990	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	699	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))
991	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	700	{
992	LOG(llevError,"update_object() called for object out of map!\n");	701	LOG (llevError, "update_object() called for object out of map!\n");
993	#ifdef MANY_CORES	702	#ifdef MANY_CORES
994	abort();	703	abort ();
995	#endif	704	#endif
996	return;	705	return;
997	}
998		706	}
999	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
1000	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
1001	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
1002	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
1003	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
1004	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
1005		707
		708	mapspace &m = op->ms ();
		709
		710	if (m.flags_ & P_NEED_UPDATE)
		711	/* nop */;
1006	if (action == UP_OBJ_INSERT) {	712	else if (action == UP_OBJ_INSERT)
		713	{
		714	// this is likely overkill, TODO: revisit (schmorp)
1007	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	715	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
1008	update_now=1;
1009
1010	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	716	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
1011	update_now=1;	717	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
1012		718	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		719	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
1013	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	720	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
1014	update_now=1;	721	|| (m.move_on | op->move_on ) != m.move_on
1015		722	|| (m.move_off | op->move_off ) != m.move_off
1016	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	723	|| (m.move_slow | op->move_slow) != m.move_slow
1017	update_now=1;
1018
1019	if ((move_on | op->move_on) != move_on) update_now=1;
1020	if ((move_off | op->move_off) != move_off) update_now=1;
1021	/* This isn't perfect, but I don't expect a lot of objects to	724	/* This isn't perfect, but I don't expect a lot of objects to
1022	* to have move_allow right now.	725	* to have move_allow right now.
1023	*/	726	*/
1024	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	727	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
1025	update_now=1;	728	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
1026	if ((move_slow | op->move_slow) != move_slow) update_now=1;	729	m.flags_ = P_NEED_UPDATE;
1027	}	730	}
1028	/* if the object is being removed, we can't make intelligent	731	/* if the object is being removed, we can't make intelligent
1029	* decisions, because remove_ob can't really pass the object	732	* decisions, because remove_ob can't really pass the object
1030	* that is being removed.	733	* that is being removed.
1031	*/	734	*/
1032	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	735	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1033	update_now=1;	736	m.flags_ = P_NEED_UPDATE;
1034	} else if (action == UP_OBJ_FACE) {	737	else if (action == UP_OBJ_FACE)
1035	/* Nothing to do for that case */	738	/* Nothing to do for that case */ ;
1036	}
1037	else {	739	else
1038	LOG(llevError,"update_object called with invalid action: %d\n", action);	740	LOG (llevError, "update_object called with invalid action: %d\n", action);
1039	}
1040		741
1041	if (update_now) {
1042	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1043	update_position(op->map, op->x, op->y);
1044	}
1045
1046	if(op->more!=NULL)	742	if (op->more)
1047	update_object(op->more, action);	743	update_object (op->more, action);
1048	}	744	}
1049		745
		746	object::vector object::mortals;
		747	object::vector object::objects; // not yet used
		748	object *object::first;
		749
		750	void object::free_mortals ()
		751	{
		752	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
		753	if ((*i)->refcnt)
		754	++i; // further delay freeing
		755	else
		756	{
		757	delete *i;
		758	mortals.erase (i);
		759	}
		760	}
		761
		762	object::object ()
		763	{
		764	SET_FLAG (this, FLAG_REMOVED);
		765
		766	expmul = 1.0;
		767	face = blank_face;
		768	}
		769
		770	object::~object ()
		771	{
		772	free_key_values (this);
		773	}
		774
		775	void object::link ()
		776	{
		777	count = ++ob_count;
		778	uuid = gen_uuid ();
		779
		780	prev = 0;
		781	next = object::first;
		782
		783	if (object::first)
		784	object::first->prev = this;
		785
		786	object::first = this;
		787	}
		788
		789	void object::unlink ()
		790	{
		791	if (this == object::first)
		792	object::first = next;
		793
		794	/* Remove this object from the list of used objects */
		795	if (prev) prev->next = next;
		796	if (next) next->prev = prev;
		797
		798	prev = 0;
		799	next = 0;
		800	}
		801
		802	object *object::create ()
		803	{
		804	object *op = new object;
		805	op->link ();
		806	return op;
		807	}
1050		808
1051	/*	809	/*
1052	* free_object() frees everything allocated by an object, removes	810	* free_object() frees everything allocated by an object, removes
1053	* it from the list of used objects, and puts it on the list of	811	* it from the list of used objects, and puts it on the list of
1054	* free objects. The IS_FREED() flag is set in the object.	812	* free objects. The IS_FREED() flag is set in the object.
1055	* The object must have been removed by remove_ob() first for	813	* The object must have been removed by remove_ob() first for
1056	* this function to succeed.	814	* this function to succeed.
1057	*	815	*
1058	* If free_inventory is set, free inventory as well. Else drop items in	816	* If destroy_inventory is set, free inventory as well. Else drop items in
1059	* inventory to the ground.	817	* inventory to the ground.
1060	*/	818	*/
		819	void object::destroy (bool destroy_inventory)
		820	{
		821	if (QUERY_FLAG (this, FLAG_FREED))
		822	return;
1061		823
1062	void free_object(object *ob) {	824	if (QUERY_FLAG (this, FLAG_FRIENDLY))
1063	free_object2(ob, 0);	825	remove_friendly_object (this);
1064	}
1065	void free_object2(object *ob, int free_inventory) {
1066	object *tmp,*op;
1067		826
1068	if (object_free_callback)
1069	object_free_callback (ob);
1070
1071	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	827	if (!QUERY_FLAG (this, FLAG_REMOVED))
1072	LOG(llevDebug,"Free object called with non removed object\n");	828	remove ();
1073	dump_object(ob);	829
1074	#ifdef MANY_CORES	830	SET_FLAG (this, FLAG_FREED);
1075	abort();	831
1076	#endif	832	if (more)
1077	}	833	{
1078	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	834	more->destroy (destroy_inventory);
1079	LOG(llevMonster,"Warning: tried to free friendly object.\n");	835	more = 0;
1080	remove_friendly_object(ob);	836	}
		837
		838	if (inv)
1081	}	839	{
1082	if(QUERY_FLAG(ob,FLAG_FREED)) {
1083	dump_object(ob);
1084	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);
1085	return;
1086	}
1087	if(ob->more!=NULL) {
1088	free_object2(ob->more, free_inventory);
1089	ob->more=NULL;
1090	}
1091	if (ob->inv) {
1092	/* Only if the space blocks everything do we not process -	840	/* Only if the space blocks everything do we not process -
1093	* if some form of movemnt is allowed, let objects	841	* if some form of movement is allowed, let objects
1094	* drop on that space.	842	* drop on that space.
1095	*/	843	*/
1096	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	844	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
1097	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	845	{
1098	{	846	object *op = inv;
1099	op=ob->inv;	847
1100	while(op!=NULL) {	848	while (op)
1101	tmp=op->below;	849	{
1102	remove_ob(op);	850	object *tmp = op->below;
1103	free_object2(op, free_inventory);	851	op->destroy (destroy_inventory);
1104	op=tmp;	852	op = tmp;
		853	}
		854	}
		855	else
		856	{ /* Put objects in inventory onto this space */
		857	object *op = inv;
		858
		859	while (op)
		860	{
		861	object *tmp = op->below;
		862
		863	op->remove ();
		864
		865	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
		866	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
		867	op->destroy ();
		868	else
		869	{
		870	op->x = x;
		871	op->y = y;
		872	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
		873	}
		874
		875	op = tmp;
		876	}
		877	}
1105	}	878	}
1106	}	879
1107	else { /* Put objects in inventory onto this space */	880	// hack to ensure that freed objects still have a valid map
1108	op=ob->inv;	881	{
1109	while(op!=NULL) {	882	static maptile *freed_map; // freed objects are moved here to avoid crashes
1110	tmp=op->below;	883
1111	remove_ob(op);	884	if (!freed_map)
1112	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||	885	{
1113	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))	886	freed_map = new maptile;
1114	free_object(op);	887
1115	else {	888	freed_map->name = "/internal/freed_objects_map";
1116	op->x=ob->x;	889	freed_map->width = 3;
1117	op->y=ob->y;	890	freed_map->height = 3;
1118	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */	891
1119	}	892	freed_map->allocate ();
1120	op=tmp;
1121	}
1122	}
1123	}	893	}
		894
		895	map = freed_map;
		896	x = 1;
		897	y = 1;
		898	}
		899
		900	// clear those pointers that likely might have circular references to us
		901	owner = 0;
		902	enemy = 0;
		903	attacked_by = 0;
		904
		905	// only relevant for players(?), but make sure of it anyways
		906	contr = 0;
		907
1124	/* Remove object from the active list */	908	/* Remove object from the active list */
1125	ob->speed = 0;	909	speed = 0;
1126	update_ob_speed(ob);	910	update_ob_speed (this);
1127		911
1128	SET_FLAG(ob, FLAG_FREED);	912	unlink ();
1129	ob->count = 0;
1130		913
1131	/* Remove this object from the list of used objects */	914	mortals.push_back (this);
1132	if(ob->prev==NULL) {
1133	objects=ob->next;
1134	if(objects!=NULL)
1135	objects->prev=NULL;
1136	}
1137	else {
1138	ob->prev->next=ob->next;
1139	if(ob->next!=NULL)
1140	ob->next->prev=ob->prev;
1141	}
1142
1143	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1144	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1145	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1146	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1147	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1148	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1149	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1150	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1151	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1152
1153
1154	/* Why aren't events freed? */
1155	free_key_values(ob);
1156
1157	#if 0 /* MEMORY_DEBUG*/
1158	/* This is a nice idea. Unfortunately, a lot of the code in crossfire
1159	* presumes the freed_object will stick around for at least a little
1160	* bit
1161	*/
1162	/* this is necessary so that memory debugging programs will
1163	* be able to accurately report source of malloc. If we recycle
1164	* objects, then some other area may be doing the get_object
1165	* and not freeing it, but the original one that malloc'd the
1166	* object will get the blame.
1167	*/
1168	free(ob);
1169	#else
1170
1171	/* Now link it with the free_objects list: */
1172	ob->prev=NULL;
1173	ob->next=free_objects;
1174	if(free_objects!=NULL)
1175	free_objects->prev=ob;
1176	free_objects=ob;
1177	nroffreeobjects++;
1178	#endif
1179	}
1180
1181	/*
1182	* count_free() returns the number of objects on the list of free objects.
1183	*/
1184
1185	int count_free(void) {
1186	int i=0;
1187	object *tmp=free_objects;
1188	while(tmp!=NULL)
1189	tmp=tmp->next, i++;
1190	return i;
1191	}
1192
1193	/*
1194	* count_used() returns the number of objects on the list of used objects.
1195	*/
1196
1197	int count_used(void) {
1198	int i=0;
1199	object *tmp=objects;
1200	while(tmp!=NULL)
1201	tmp=tmp->next, i++;
1202	return i;
1203	}
1204
1205	/*
1206	* count_active() returns the number of objects on the list of active objects.
1207	*/
1208
1209	int count_active(void) {
1210	int i=0;
1211	object *tmp=active_objects;
1212	while(tmp!=NULL)
1213	tmp=tmp->active_next, i++;
1214	return i;
1215	}	915	}
1216		916
1217	/*	917	/*
1218	* sub_weight() recursively (outwards) subtracts a number from the	918	* sub_weight() recursively (outwards) subtracts a number from the
1219	* weight of an object (and what is carried by it's environment(s)).	919	* weight of an object (and what is carried by it's environment(s)).
1220	*/	920	*/
1221		921	void
1222	void sub_weight (object *op, signed long weight) {	922	sub_weight (object *op, signed long weight)
		923	{
1223	while (op != NULL) {	924	while (op != NULL)
		925	{
1224	if (op->type == CONTAINER) {	926	if (op->type == CONTAINER)
1225	weight=(signed long)(weight*(100-op->stats.Str)/100);	927	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1226	}	928
1227	op->carrying-=weight;	929	op->carrying -= weight;
1228	op = op->env;	930	op = op->env;
1229	}	931	}
1230	}	932	}
1231		933
1232	/* remove_ob(op):	934	/* op->remove ():
1233	* This function removes the object op from the linked list of objects	935	* This function removes the object op from the linked list of objects
1234	* which it is currently tied to. When this function is done, the	936	* which it is currently tied to. When this function is done, the
1235	* object will have no environment. If the object previously had an	937	* object will have no environment. If the object previously had an
1236	* environment, the x and y coordinates will be updated to	938	* environment, the x and y coordinates will be updated to
1237	* the previous environment.	939	* the previous environment.
1238	* Beware: This function is called from the editor as well!	940	* Beware: This function is called from the editor as well!
1239	*/	941	*/
1240		942	void
1241	void remove_ob(object *op) {	943	object::remove ()
		944	{
1242	object *tmp,*last=NULL;	945	object *tmp, *last = 0;
1243	object *otmp;	946	object *otmp;
1244	tag_t tag;	947
1245	int check_walk_off;	948	int check_walk_off;
1246	mapstruct *m;
1247	sint16 x,y;
1248
1249		949
1250	if(QUERY_FLAG(op,FLAG_REMOVED)) {	950	if (QUERY_FLAG (this, FLAG_REMOVED))
1251	dump_object(op);	951	return;
1252	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1253		952
1254	/* Changed it to always dump core in this case. As has been learned
1255	* in the past, trying to recover from errors almost always
1256	* make things worse, and this is a real error here - something
1257	* that should not happen.
1258	* Yes, if this was a mission critical app, trying to do something
1259	* to recover may make sense, but that is because failure of the app
1260	* may have other disastrous problems. Cf runs out of a script
1261	* so is easily enough restarted without any real problems.
1262	* MSW 2001-07-01
1263	*/
1264	abort();
1265	}
1266	if(op->more!=NULL)
1267	remove_ob(op->more);
1268
1269	SET_FLAG(op, FLAG_REMOVED);	953	SET_FLAG (this, FLAG_REMOVED);
1270		954
		955	if (more)
		956	more->remove ();
		957
1271	/*	958	/*
1272	* In this case, the object to be removed is in someones	959	* In this case, the object to be removed is in someones
1273	* inventory.	960	* inventory.
1274	*/	961	*/
1275	if(op->env!=NULL) {	962	if (env)
1276	if(op->nrof)	963	{
		964	if (nrof)
1277	sub_weight(op->env, op->weight*op->nrof);	965	sub_weight (env, weight * nrof);
1278	else	966	else
1279	sub_weight(op->env, op->weight+op->carrying);	967	sub_weight (env, weight + carrying);
1280		968
1281	/* NO_FIX_PLAYER is set when a great many changes are being	969	/* NO_FIX_PLAYER is set when a great many changes are being
1282	* made to players inventory. If set, avoiding the call	970	* made to players inventory. If set, avoiding the call
1283	* to save cpu time.	971	* to save cpu time.
1284	*/	972	*/
1285	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	973	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1286	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	974	otmp->update_stats ();
1287	fix_player(otmp);
1288		975
1289	if(op->above!=NULL)	976	if (above != NULL)
1290	op->above->below=op->below;	977	above->below = below;
1291	else	978	else
1292	op->env->inv=op->below;	979	env->inv = below;
1293		980
1294	if(op->below!=NULL)	981	if (below != NULL)
1295	op->below->above=op->above;	982	below->above = above;
1296		983
1297	/* we set up values so that it could be inserted into	984	/* we set up values so that it could be inserted into
1298	* the map, but we don't actually do that - it is up	985	* the map, but we don't actually do that - it is up
1299	* to the caller to decide what we want to do.	986	* to the caller to decide what we want to do.
1300	*/	987	*/
1301	op->x=op->env->x,op->y=op->env->y;	988	x = env->x, y = env->y;
1302	op->ox=op->x,op->oy=op->y;	989	map = env->map;
1303	op->map=op->env->map;	990	above = 0, below = 0;
1304	op->above=NULL,op->below=NULL;	991	env = 0;
1305	op->env=NULL;	992	}
1306	return;	993	else if (map)
1307	}	994	{
1308
1309	/* If we get here, we are removing it from a map */
1310	if (op->map == NULL) return;
1311
1312	x = op->x;
1313	y = op->y;
1314	m = get_map_from_coord(op->map, &x, &y);
1315
1316	if (!m) {
1317	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1318	op->map->path, op->x, op->y);
1319	/* in old days, we used to set x and y to 0 and continue.
1320	* it seems if we get into this case, something is probablye
1321	* screwed up and should be fixed.
1322	*/
1323	abort();
1324	}
1325	if (op->map != m) {
1326	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1327	op->map->path, m->path, op->x, op->y, x, y);
1328	}
1329
1330	/* Re did the following section of code - it looks like it had	995	/* Re did the following section of code - it looks like it had
1331	* lots of logic for things we no longer care about	996	* lots of logic for things we no longer care about
1332	*/	997	*/
1333		998
1334	/* link the object above us */	999	/* link the object above us */
1335	if (op->above)	1000	if (above)
1336	op->above->below=op->below;	1001	above->below = below;
1337	else	1002	else
1338	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */	1003	map->at (x, y).top = below; /* we were top, set new top */
1339		1004
1340	/* Relink the object below us, if there is one */	1005	/* Relink the object below us, if there is one */
1341	if(op->below) {	1006	if (below)
1342	op->below->above=op->above;	1007	below->above = above;
1343	} else {	1008	else
		1009	{
1344	/* Nothing below, which means we need to relink map object for this space	1010	/* Nothing below, which means we need to relink map object for this space
1345	* use translated coordinates in case some oddness with map tiling is	1011	* use translated coordinates in case some oddness with map tiling is
1346	* evident	1012	* evident
1347	*/	1013	*/
1348	if(GET_MAP_OB(m,x,y)!=op) {	1014	if (GET_MAP_OB (map, x, y) != this)
1349	dump_object(op);	1015	{
		1016	char *dump = dump_object (this);
		1017	LOG (llevError,
1350	LOG(llevError,"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", errmsg);	1018	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);
1351	dump_object(GET_MAP_OB(m,x,y));	1019	free (dump);
1352	LOG(llevError,"%s\n",errmsg);	1020	dump = dump_object (GET_MAP_OB (map, x, y));
1353	}	1021	LOG (llevError, "%s\n", dump);
1354	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1022	free (dump);
1355	}	1023	}
1356	op->above=NULL;
1357	op->below=NULL;
1358		1024
		1025	map->at (x, y).bottom = above; /* goes on above it. */
		1026	}
		1027
		1028	above = 0;
		1029	below = 0;
		1030
1359	if (op->map->in_memory == MAP_SAVING)	1031	if (map->in_memory == MAP_SAVING)
1360	return;	1032	return;
1361		1033
1362	tag = op->count;
1363	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1034	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);
		1035
1364	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1036	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
		1037	{
1365	/* No point updating the players look faces if he is the object	1038	/* No point updating the players look faces if he is the object
1366	* being removed.	1039	* being removed.
1367	*/	1040	*/
1368		1041
1369	if(tmp->type==PLAYER && tmp!=op) {	1042	if (tmp->type == PLAYER && tmp != this)
		1043	{
1370	/* If a container that the player is currently using somehow gets	1044	/* If a container that the player is currently using somehow gets
1371	* removed (most likely destroyed), update the player view	1045	* removed (most likely destroyed), update the player view
1372	* appropriately.	1046	* appropriately.
1373	*/	1047	*/
1374	if (tmp->container==op) {	1048	if (tmp->container == this)
1375	CLEAR_FLAG(op, FLAG_APPLIED);	1049	{
1376	tmp->container=NULL;	1050	CLEAR_FLAG (this, FLAG_APPLIED);
1377	}	1051	tmp->container = 0;
1378	tmp->contr->socket.update_look=1;	1052	}
1379	}	1053
		1054	tmp->contr->ns->floorbox_update ();
		1055	}
		1056
1380	/* See if player moving off should effect something */	1057	/* See if player moving off should effect something */
1381	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1058	if (check_walk_off
		1059	&& ((move_type & tmp->move_off)
1382	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1060	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1061	{
		1062	move_apply (tmp, this, 0);
1383		1063
1384	move_apply(tmp, op, NULL);	1064	if (destroyed ())
1385	if (was_destroyed (op, tag)) {	1065	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1386	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1066	}
1387	"leaving object\n", tmp->name, tmp->arch->name);
1388	}
1389	}
1390		1067
1391	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1068	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1392		1069
1393	if(tmp->above == tmp)	1070	if (tmp->above == tmp)
1394	tmp->above = NULL;	1071	tmp->above = 0;
1395	last=tmp;	1072
1396	}	1073	last = tmp;
		1074	}
		1075
1397	/* last == NULL of there are no objects on this space */	1076	/* last == NULL of there are no objects on this space */
1398	if (last==NULL) {	1077	if (!last)
1399	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1078	map->at (x, y).flags_ = P_NEED_UPDATE;
1400	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1401	* those out anyways, and if there are any flags set right now, they won't
1402	* be correct anyways.
1403	*/
1404	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1405	update_position(op->map, op->x, op->y);
1406	}
1407	else	1079	else
1408	update_object(last, UP_OBJ_REMOVE);	1080	update_object (last, UP_OBJ_REMOVE);
1409		1081
1410	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1082	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1411	update_all_los(op->map, op->x, op->y);	1083	update_all_los (map, x, y);
1412		1084	}
1413	}	1085	}
1414		1086
1415	/*	1087	/*
1416	* merge_ob(op,top):	1088	* merge_ob(op,top):
1417	*	1089	*
1418	* This function goes through all objects below and including top, and	1090	* This function goes through all objects below and including top, and
1419	* merges op to the first matching object.	1091	* merges op to the first matching object.
1420	* If top is NULL, it is calculated.	1092	* If top is NULL, it is calculated.
1421	* Returns pointer to object if it succeded in the merge, otherwise NULL	1093	* Returns pointer to object if it succeded in the merge, otherwise NULL
1422	*/	1094	*/
1423		1095	object *
1424	object *merge_ob(object *op, object *top) {	1096	merge_ob (object *op, object *top)
		1097	{
1425	if(!op->nrof)	1098	if (!op->nrof)
1426	return 0;	1099	return 0;
		1100
1427	if(top==NULL)	1101	if (top == NULL)
1428	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1102	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1103
1429	for(;top!=NULL;top=top->below) {	1104	for (; top != NULL; top = top->below)
		1105	{
1430	if(top==op)	1106	if (top == op)
1431	continue;	1107	continue;
1432	if (CAN_MERGE(op,top))	1108
1433	{	1109	if (object::can_merge (op, top))
		1110	{
1434	top->nrof+=op->nrof;	1111	top->nrof += op->nrof;
		1112
1435	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1113	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1436	op->weight = 0; /* Don't want any adjustements now */	1114	op->weight = 0; /* Don't want any adjustements now */
1437	remove_ob(op);	1115	op->destroy ();
1438	free_object(op);
1439	return top;	1116	return top;
1440	}	1117	}
1441	}	1118	}
		1119
1442	return NULL;	1120	return 0;
1443	}	1121	}
1444		1122
1445	/*	1123	/*
1446	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1124	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1447	* job preparing multi-part monsters	1125	* job preparing multi-part monsters
1448	*/	1126	*/
		1127	object *
1449	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1128	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1129	{
1450	object* tmp;	1130	object *tmp;
		1131
1451	if (op->head)	1132	if (op->head)
1452	op=op->head;	1133	op = op->head;
		1134
1453	for (tmp=op;tmp;tmp=tmp->more){	1135	for (tmp = op; tmp; tmp = tmp->more)
		1136	{
1454	tmp->x=x+tmp->arch->clone.x;	1137	tmp->x = x + tmp->arch->clone.x;
1455	tmp->y=y+tmp->arch->clone.y;	1138	tmp->y = y + tmp->arch->clone.y;
1456	}	1139	}
		1140
1457	return insert_ob_in_map (op, m, originator, flag);	1141	return insert_ob_in_map (op, m, originator, flag);
1458	}	1142	}
1459		1143
1460	/*	1144	/*
1461	* insert_ob_in_map (op, map, originator, flag):	1145	* insert_ob_in_map (op, map, originator, flag):
1462	* This function inserts the object in the two-way linked list	1146	* This function inserts the object in the two-way linked list
…		…
1476	* new object if 'op' was merged with other object	1160	* new object if 'op' was merged with other object
1477	* NULL if 'op' was destroyed	1161	* NULL if 'op' was destroyed
1478	* just 'op' otherwise	1162	* just 'op' otherwise
1479	*/	1163	*/
1480		1164
		1165	object *
1481	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1166	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1482	{	1167	{
1483	object *tmp, *top, *floor=NULL;	1168	object *tmp, *top, *floor = NULL;
1484	sint16 x,y;	1169	sint16 x, y;
1485		1170
1486	if (QUERY_FLAG (op, FLAG_FREED)) {	1171	if (QUERY_FLAG (op, FLAG_FREED))
		1172	{
1487	LOG (llevError, "Trying to insert freed object!\n");	1173	LOG (llevError, "Trying to insert freed object!\n");
1488	return NULL;	1174	return NULL;
		1175	}
		1176
		1177	if (m == NULL)
1489	}	1178	{
1490	if(m==NULL) {	1179	char *dump = dump_object (op);
1491	dump_object(op);
1492	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1180	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1493	return op;	1181	free (dump);
		1182	return op;
1494	}	1183	}
		1184
1495	if(out_of_map(m,op->x,op->y)) {	1185	if (out_of_map (m, op->x, op->y))
1496	dump_object(op);	1186	{
		1187	char *dump = dump_object (op);
1497	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1188	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1498	#ifdef MANY_CORES	1189	#ifdef MANY_CORES
1499	/* Better to catch this here, as otherwise the next use of this object	1190	/* Better to catch this here, as otherwise the next use of this object
1500	* is likely to cause a crash. Better to find out where it is getting	1191	* is likely to cause a crash. Better to find out where it is getting
1501	* improperly inserted.	1192	* improperly inserted.
1502	*/	1193	*/
1503	abort();	1194	abort ();
1504	#endif	1195	#endif
1505	return op;	1196	free (dump);
		1197	return op;
1506	}	1198	}
		1199
1507	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1200	if (!QUERY_FLAG (op, FLAG_REMOVED))
1508	dump_object(op);	1201	{
		1202	char *dump = dump_object (op);
1509	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1203	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1510	return op;	1204	free (dump);
		1205	return op;
1511	}	1206	}
		1207
1512	if(op->more!=NULL) {	1208	if (op->more != NULL)
		1209	{
1513	/* The part may be on a different map. */	1210	/* The part may be on a different map. */
1514		1211
1515	object *more = op->more;	1212	object *more = op->more;
1516		1213
1517	/* We really need the caller to normalize coordinates - if	1214	/* We really need the caller to normalize coordinates - if
1518	* we set the map, that doesn't work if the location is within	1215	* we set the map, that doesn't work if the location is within
1519	* a map and this is straddling an edge. So only if coordinate	1216	* a map and this is straddling an edge. So only if coordinate
1520	* is clear wrong do we normalize it.	1217	* is clear wrong do we normalize it.
1521	*/	1218	*/
1522	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1219	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1523	/* Debugging information so you can see the last coordinates this object had */
1524	more->ox = more->x;
1525	more->oy = more->y;
1526	more->map = get_map_from_coord(m, &more->x, &more->y);	1220	more->map = get_map_from_coord (m, &more->x, &more->y);
1527	} else if (!more->map) {	1221	else if (!more->map)
		1222	{
1528	/* For backwards compatibility - when not dealing with tiled maps,	1223	/* For backwards compatibility - when not dealing with tiled maps,
1529	* more->map should always point to the parent.	1224	* more->map should always point to the parent.
1530	*/	1225	*/
1531	more->map = m;	1226	more->map = m;
1532	}	1227	}
1533		1228
1534	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1229	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1230	{
1535	if ( ! op->head)	1231	if (!op->head)
1536	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1232	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1233
1537	return NULL;	1234	return NULL;
1538	}	1235	}
1539	}	1236	}
		1237
1540	CLEAR_FLAG(op,FLAG_REMOVED);	1238	CLEAR_FLAG (op, FLAG_REMOVED);
1541		1239
1542	/* Debugging information so you can see the last coordinates this object had */
1543	op->ox=op->x;
1544	op->oy=op->y;
1545
1546	/* Ideally, the caller figures this out. However, it complicates a lot	1240	/* Ideally, the caller figures this out. However, it complicates a lot
1547	* of areas of callers (eg, anything that uses find_free_spot would now	1241	* of areas of callers (eg, anything that uses find_free_spot would now
1548	* need extra work	1242	* need extra work
1549	*/	1243	*/
1550	op->map=get_map_from_coord(m, &op->x, &op->y);	1244	op->map = get_map_from_coord (m, &op->x, &op->y);
1551	x = op->x;	1245	x = op->x;
1552	y = op->y;	1246	y = op->y;
1553		1247
1554	/* this has to be done after we translate the coordinates.	1248	/* this has to be done after we translate the coordinates.
1555	*/	1249	*/
1556	if(op->nrof && !(flag & INS_NO_MERGE)) {	1250	if (op->nrof && !(flag & INS_NO_MERGE))
1557	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1251	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1558	if (CAN_MERGE(op,tmp)) {	1252	if (object::can_merge (op, tmp))
1559	op->nrof+=tmp->nrof;	1253	{
1560	remove_ob(tmp);	1254	op->nrof += tmp->nrof;
1561	free_object(tmp);	1255	tmp->destroy ();
1562	}	1256	}
1563	}
1564		1257
1565	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1258	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1566	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1259	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1260
1567	if (!QUERY_FLAG(op, FLAG_ALIVE))	1261	if (!QUERY_FLAG (op, FLAG_ALIVE))
1568	CLEAR_FLAG(op, FLAG_NO_STEAL);	1262	CLEAR_FLAG (op, FLAG_NO_STEAL);
1569		1263
1570	if (flag & INS_BELOW_ORIGINATOR) {	1264	if (flag & INS_BELOW_ORIGINATOR)
		1265	{
1571	if (originator->map != op->map || originator->x != op->x ||	1266	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1572	originator->y != op->y) {	1267	{
1573	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1268	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1574	abort();	1269	abort ();
1575	}	1270	}
		1271
1576	op->above = originator;	1272	op->above = originator;
1577	op->below = originator->below;	1273	op->below = originator->below;
1578	if (op->below) op->below->above = op;	1274
1579	else SET_MAP_OB(op->map, op->x, op->y, op);	1275	if (op->below)
		1276	op->below->above = op;
		1277	else
		1278	op->ms ().bottom = op;
		1279
1580	/* since *below* originator, no need to update top */	1280	/* since *below* originator, no need to update top */
1581	originator->below = op;	1281	originator->below = op;
1582	} else {	1282	}
		1283	else
		1284	{
1583	/* If there are other objects, then */	1285	/* If there are other objects, then */
1584	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1286	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1287	{
1585	object *last=NULL;	1288	object *last = NULL;
1586	/*	1289
		1290	/*
1587	* If there are multiple objects on this space, we do some trickier handling.	1291	* If there are multiple objects on this space, we do some trickier handling.
1588	* We've already dealt with merging if appropriate.	1292	* We've already dealt with merging if appropriate.
1589	* Generally, we want to put the new object on top. But if	1293	* Generally, we want to put the new object on top. But if
1590	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1294	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1591	* floor, we want to insert above that and no further.	1295	* floor, we want to insert above that and no further.
1592	* Also, if there are spell objects on this space, we stop processing	1296	* Also, if there are spell objects on this space, we stop processing
1593	* once we get to them. This reduces the need to traverse over all of	1297	* once we get to them. This reduces the need to traverse over all of
1594	* them when adding another one - this saves quite a bit of cpu time	1298	* them when adding another one - this saves quite a bit of cpu time
1595	* when lots of spells are cast in one area. Currently, it is presumed	1299	* when lots of spells are cast in one area. Currently, it is presumed
1596	* that flying non pickable objects are spell objects.	1300	* that flying non pickable objects are spell objects.
1597	*/	1301	*/
1598		1302
1599	while (top != NULL) {	1303	while (top != NULL)
1600	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||	1304	{
1601	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;	1305	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1602	if (QUERY_FLAG(top, FLAG_NO_PICK)	1306	floor = top;
1603	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))	1307
1604	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))	1308	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1605	{	1309	{
1606	/* We insert above top, so we want this object below this */	1310	/* We insert above top, so we want this object below this */
1607	top=top->below;	1311	top = top->below;
1608	break;	1312	break;
1609	}	1313	}
1610	last = top;	1314
1611	top = top->above;	1315	last = top;
1612	}	1316	top = top->above;
		1317	}
		1318
1613	/* Don't want top to be NULL, so set it to the last valid object */	1319	/* Don't want top to be NULL, so set it to the last valid object */
1614	top = last;	1320	top = last;
1615		1321
1616	/* We let update_position deal with figuring out what the space	1322	/* We let update_position deal with figuring out what the space
1617	* looks like instead of lots of conditions here.	1323	* looks like instead of lots of conditions here.
1618	* makes things faster, and effectively the same result.	1324	* makes things faster, and effectively the same result.
1619	*/	1325	*/
1620		1326
1621	/* Have object 'fall below' other objects that block view.	1327	/* Have object 'fall below' other objects that block view.
1622	* Unless those objects are exits, type 66	1328	* Unless those objects are exits, type 66
1623	* If INS_ON_TOP is used, don't do this processing	1329	* If INS_ON_TOP is used, don't do this processing
1624	* Need to find the object that in fact blocks view, otherwise	1330	* Need to find the object that in fact blocks view, otherwise
1625	* stacking is a bit odd.	1331	* stacking is a bit odd.
1626	*/	1332	*/
1627	if (!(flag & INS_ON_TOP) &&	1333	if (!(flag & INS_ON_TOP) &&
1628	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1334	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1629	(op->face && !op->face->visibility)) {	1335	{
1630	for (last=top; last != floor; last=last->below)	1336	for (last = top; last != floor; last = last->below)
1631	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1337	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1338	break;
1632	/* Check to see if we found the object that blocks view,	1339	/* Check to see if we found the object that blocks view,
1633	* and make sure we have a below pointer for it so that	1340	* and make sure we have a below pointer for it so that
1634	* we can get inserted below this one, which requires we	1341	* we can get inserted below this one, which requires we
1635	* set top to the object below us.	1342	* set top to the object below us.
1636	*/	1343	*/
1637	if (last && last->below && last != floor) top=last->below;	1344	if (last && last->below && last != floor)
1638	}	1345	top = last->below;
1639	} /* If objects on this space */	1346	}
		1347	} /* If objects on this space */
		1348
1640	if (flag & INS_MAP_LOAD)	1349	if (flag & INS_MAP_LOAD)
1641	top = GET_MAP_TOP(op->map,op->x,op->y);	1350	top = GET_MAP_TOP (op->map, op->x, op->y);
		1351
1642	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1352	if (flag & INS_ABOVE_FLOOR_ONLY)
		1353	top = floor;
1643		1354
1644	/* Top is the object that our object (op) is going to get inserted above.	1355	/* Top is the object that our object (op) is going to get inserted above.
1645	*/	1356	*/
1646		1357
1647	/* First object on this space */	1358	/* First object on this space */
1648	if (!top) {	1359	if (!top)
		1360	{
1649	op->above = GET_MAP_OB(op->map, op->x, op->y);	1361	op->above = GET_MAP_OB (op->map, op->x, op->y);
1650	if (op->above) op->above->below = op;	1362
		1363	if (op->above)
		1364	op->above->below = op;
		1365
1651	op->below = NULL;	1366	op->below = NULL;
1652	SET_MAP_OB(op->map, op->x, op->y, op);	1367	op->ms ().bottom = op;
1653	} else { /* get inserted into the stack above top */	1368	}
		1369	else
		1370	{ /* get inserted into the stack above top */
1654	op->above = top->above;	1371	op->above = top->above;
1655	if (op->above) op->above->below = op;	1372
		1373	if (op->above)
		1374	op->above->below = op;
		1375
1656	op->below = top;	1376	op->below = top;
1657	top->above = op;	1377	top->above = op;
1658	}	1378	}
		1379
1659	if (op->above==NULL)	1380	if (op->above == NULL)
1660	SET_MAP_TOP(op->map,op->x, op->y, op);	1381	op->ms ().top = op;
1661	} /* else not INS_BELOW_ORIGINATOR */	1382	} /* else not INS_BELOW_ORIGINATOR */
1662		1383
1663	if(op->type==PLAYER)	1384	if (op->type == PLAYER)
1664	op->contr->do_los=1;	1385	op->contr->do_los = 1;
1665		1386
1666	/* If we have a floor, we know the player, if any, will be above	1387	/* If we have a floor, we know the player, if any, will be above
1667	* it, so save a few ticks and start from there.	1388	* it, so save a few ticks and start from there.
1668	*/	1389	*/
1669	if (!(flag & INS_MAP_LOAD))	1390	if (!(flag & INS_MAP_LOAD))
1670	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1391	if (object *pl = op->ms ().player ())
1671	if (tmp->type == PLAYER)	1392	pl->contr->ns->floorbox_update ();
1672	tmp->contr->socket.update_look=1;
1673	}
1674		1393
1675	/* If this object glows, it may affect lighting conditions that are	1394	/* If this object glows, it may affect lighting conditions that are
1676	* visible to others on this map. But update_all_los is really	1395	* visible to others on this map. But update_all_los is really
1677	* an inefficient way to do this, as it means los for all players	1396	* an inefficient way to do this, as it means los for all players
1678	* on the map will get recalculated. The players could very well	1397	* on the map will get recalculated. The players could very well
1679	* be far away from this change and not affected in any way -	1398	* be far away from this change and not affected in any way -
1680	* this should get redone to only look for players within range,	1399	* this should get redone to only look for players within range,
1681	* or just updating the P_NEED_UPDATE for spaces within this area	1400	* or just updating the P_NEED_UPDATE for spaces within this area
1682	* of effect may be sufficient.	1401	* of effect may be sufficient.
1683	*/	1402	*/
1684	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1403	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
1685	update_all_los(op->map, op->x, op->y);	1404	update_all_los (op->map, op->x, op->y);
1686		1405
1687
1688	/* updates flags (blocked, alive, no magic, etc) for this map space */	1406	/* updates flags (blocked, alive, no magic, etc) for this map space */
1689	update_object(op,UP_OBJ_INSERT);	1407	update_object (op, UP_OBJ_INSERT);
1690		1408
1691
1692	/* Don't know if moving this to the end will break anything. However,	1409	/* Don't know if moving this to the end will break anything. However,
1693	* we want to have update_look set above before calling this.	1410	* we want to have floorbox_update called before calling this.
1694	*	1411	*
1695	* check_move_on() must be after this because code called from	1412	* check_move_on() must be after this because code called from
1696	* check_move_on() depends on correct map flags (so functions like	1413	* check_move_on() depends on correct map flags (so functions like
1697	* blocked() and wall() work properly), and these flags are updated by	1414	* blocked() and wall() work properly), and these flags are updated by
1698	* update_object().	1415	* update_object().
1699	*/	1416	*/
1700		1417
1701	/* if this is not the head or flag has been passed, don't check walk on status */	1418	/* if this is not the head or flag has been passed, don't check walk on status */
1702
1703	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1419	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1420	{
1704	if (check_move_on(op, originator))	1421	if (check_move_on (op, originator))
1705	return NULL;	1422	return NULL;
1706		1423
1707	/* If we are a multi part object, lets work our way through the check	1424	/* If we are a multi part object, lets work our way through the check
1708	* walk on's.	1425	* walk on's.
1709	*/	1426	*/
1710	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1427	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1711	if (check_move_on (tmp, originator))	1428	if (check_move_on (tmp, originator))
1712	return NULL;	1429	return NULL;
1713	}	1430	}
		1431
1714	return op;	1432	return op;
1715	}	1433	}
1716		1434
1717	/* this function inserts an object in the map, but if it	1435	/* this function inserts an object in the map, but if it
1718	* finds an object of its own type, it'll remove that one first.	1436	* finds an object of its own type, it'll remove that one first.
1719	* op is the object to insert it under: supplies x and the map.	1437	* op is the object to insert it under: supplies x and the map.
1720	*/	1438	*/
		1439	void
1721	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1440	replace_insert_ob_in_map (const char *arch_string, object *op)
1722	object *tmp;	1441	{
1723	object *tmp1;	1442	object *tmp, *tmp1;
1724		1443
1725	/* first search for itself and remove any old instances */	1444	/* first search for itself and remove any old instances */
1726		1445
1727	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1446	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1728	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1447	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1729	remove_ob(tmp);	1448	tmp->destroy ();
1730	free_object(tmp);
1731	}
1732	}
1733		1449
1734	tmp1=arch_to_object(find_archetype(arch_string));	1450	tmp1 = arch_to_object (archetype::find (arch_string));
1735		1451
1736		1452	tmp1->x = op->x;
1737	tmp1->x = op->x; tmp1->y = op->y;	1453	tmp1->y = op->y;
1738	insert_ob_in_map(tmp1,op->map,op,0);	1454	insert_ob_in_map (tmp1, op->map, op, 0);
1739	}	1455	}
1740		1456
1741	/*	1457	/*
1742	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1458	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1743	* is returned contains nr objects, and the remaining parts contains	1459	* is returned contains nr objects, and the remaining parts contains
1744	* the rest (or is removed and freed if that number is 0).	1460	* the rest (or is removed and freed if that number is 0).
1745	* On failure, NULL is returned, and the reason put into the	1461	* On failure, NULL is returned, and the reason put into the
1746	* global static errmsg array.	1462	* global static errmsg array.
1747	*/	1463	*/
1748		1464
		1465	object *
1749	object *get_split_ob(object *orig_ob, uint32 nr) {	1466	get_split_ob (object *orig_ob, uint32 nr)
		1467	{
1750	object *newob;	1468	object *newob;
1751	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1469	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1752		1470
1753	if(orig_ob->nrof<nr) {	1471	if (orig_ob->nrof < nr)
1754	sprintf(errmsg,"There are only %d %ss.",
1755	orig_ob->nrof?orig_ob->nrof:1, orig_ob->name);
1756	return NULL;
1757	}	1472	{
		1473	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
		1474	return NULL;
		1475	}
		1476
1758	newob = object_create_clone(orig_ob);	1477	newob = object_create_clone (orig_ob);
		1478
1759	if((orig_ob->nrof-=nr)<1) {	1479	if ((orig_ob->nrof -= nr) < 1)
1760	if ( ! is_removed)	1480	orig_ob->destroy (1);
1761	remove_ob(orig_ob);
1762	free_object2(orig_ob, 1);
1763	}
1764	else if ( ! is_removed) {	1481	else if (!is_removed)
		1482	{
1765	if(orig_ob->env!=NULL)	1483	if (orig_ob->env != NULL)
1766	sub_weight (orig_ob->env,orig_ob->weight*nr);	1484	sub_weight (orig_ob->env, orig_ob->weight * nr);
1767	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1485	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1486	{
1768	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1487	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1769	LOG(llevDebug,
1770	"Error, Tried to split object whose map is not in memory.\n");	1488	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1771	return NULL;	1489	return NULL;
1772	}	1490	}
1773	}	1491	}
		1492
1774	newob->nrof=nr;	1493	newob->nrof = nr;
1775		1494
1776	return newob;	1495	return newob;
1777	}	1496	}
1778		1497
1779	/*	1498	/*
1780	* decrease_ob_nr(object, number) decreases a specified number from	1499	* decrease_ob_nr(object, number) decreases a specified number from
1781	* the amount of an object. If the amount reaches 0, the object	1500	* the amount of an object. If the amount reaches 0, the object
1782	* is subsequently removed and freed.	1501	* is subsequently removed and freed.
1783	*	1502	*
1784	* Return value: 'op' if something is left, NULL if the amount reached 0	1503	* Return value: 'op' if something is left, NULL if the amount reached 0
1785	*/	1504	*/
1786		1505
		1506	object *
1787	object *decrease_ob_nr (object *op, uint32 i)	1507	decrease_ob_nr (object *op, uint32 i)
1788	{	1508	{
1789	object *tmp;	1509	object *tmp;
1790	player *pl;
1791		1510
1792	if (i == 0) /* objects with op->nrof require this check */	1511	if (i == 0) /* objects with op->nrof require this check */
1793	return op;	1512	return op;
1794		1513
1795	if (i > op->nrof)	1514	if (i > op->nrof)
1796	i = op->nrof;	1515	i = op->nrof;
1797		1516
1798	if (QUERY_FLAG (op, FLAG_REMOVED))	1517	if (QUERY_FLAG (op, FLAG_REMOVED))
		1518	op->nrof -= i;
		1519	else if (op->env)
		1520	{
		1521	/* is this object in the players inventory, or sub container
		1522	* therein?
		1523	*/
		1524	tmp = op->in_player ();
		1525	/* nope. Is this a container the player has opened?
		1526	* If so, set tmp to that player.
		1527	* IMO, searching through all the players will mostly
		1528	* likely be quicker than following op->env to the map,
		1529	* and then searching the map for a player.
		1530	*/
		1531	if (!tmp)
		1532	for_all_players (pl)
		1533	if (pl->ob->container == op->env)
		1534	{
		1535	tmp = pl->ob;
		1536	break;
		1537	}
		1538
		1539	if (i < op->nrof)
		1540	{
		1541	sub_weight (op->env, op->weight * i);
		1542	op->nrof -= i;
		1543	if (tmp)
		1544	esrv_send_item (tmp, op);
		1545	}
		1546	else
		1547	{
		1548	op->remove ();
		1549	op->nrof = 0;
		1550	if (tmp)
		1551	esrv_del_item (tmp->contr, op->count);
		1552	}
1799	{	1553	}
		1554	else
		1555	{
		1556	object *above = op->above;
		1557
		1558	if (i < op->nrof)
1800	op->nrof -= i;	1559	op->nrof -= i;
1801	}
1802	else if (op->env != NULL)
1803	{
1804	/* is this object in the players inventory, or sub container
1805	* therein?
1806	*/
1807	tmp = is_player_inv (op->env);
1808	/* nope. Is this a container the player has opened?
1809	* If so, set tmp to that player.
1810	* IMO, searching through all the players will mostly
1811	* likely be quicker than following op->env to the map,
1812	* and then searching the map for a player.
1813	*/
1814	if (!tmp) {
1815	for (pl=first_player; pl; pl=pl->next)
1816	if (pl->ob->container == op->env) break;
1817	if (pl) tmp=pl->ob;
1818	else tmp=NULL;
1819	}
1820
1821	if (i < op->nrof) {
1822	sub_weight (op->env, op->weight * i);
1823	op->nrof -= i;
1824	if (tmp) {
1825	esrv_send_item(tmp, op);
1826	}
1827	} else {	1560	else
		1561	{
1828	remove_ob (op);	1562	op->remove ();
1829	op->nrof = 0;	1563	op->nrof = 0;
1830	if (tmp) {
1831	esrv_del_item(tmp->contr, op->count);
1832	}
1833	}	1564	}
1834	}
1835	else
1836	{
1837	object *above = op->above;
1838		1565
1839	if (i < op->nrof) {
1840	op->nrof -= i;
1841	} else {
1842	remove_ob (op);
1843	op->nrof = 0;
1844	}
1845	/* Since we just removed op, op->above is null */	1566	/* Since we just removed op, op->above is null */
1846	for (tmp = above; tmp != NULL; tmp = tmp->above)	1567	for (tmp = above; tmp; tmp = tmp->above)
1847	if (tmp->type == PLAYER) {	1568	if (tmp->type == PLAYER)
		1569	{
1848	if (op->nrof)	1570	if (op->nrof)
1849	esrv_send_item(tmp, op);	1571	esrv_send_item (tmp, op);
1850	else	1572	else
1851	esrv_del_item(tmp->contr, op->count);	1573	esrv_del_item (tmp->contr, op->count);
1852	}	1574	}
1853	}	1575	}
1854		1576
1855	if (op->nrof) {	1577	if (op->nrof)
1856	return op;	1578	return op;
1857	} else {	1579	else
1858	free_object (op);	1580	{
		1581	op->destroy ();
1859	return NULL;	1582	return 0;
1860	}	1583	}
1861	}	1584	}
1862		1585
1863	/*	1586	/*
1864	* add_weight(object, weight) adds the specified weight to an object,	1587	* add_weight(object, weight) adds the specified weight to an object,
1865	* and also updates how much the environment(s) is/are carrying.	1588	* and also updates how much the environment(s) is/are carrying.
1866	*/	1589	*/
1867		1590
		1591	void
1868	void add_weight (object *op, signed long weight) {	1592	add_weight (object *op, signed long weight)
		1593	{
1869	while (op!=NULL) {	1594	while (op != NULL)
		1595	{
1870	if (op->type == CONTAINER) {	1596	if (op->type == CONTAINER)
1871	weight=(signed long)(weight*(100-op->stats.Str)/100);	1597	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1872	}	1598
1873	op->carrying+=weight;	1599	op->carrying += weight;
1874	op=op->env;	1600	op = op->env;
1875	}	1601	}
1876	}	1602	}
1877		1603
		1604	object *
		1605	insert_ob_in_ob (object *op, object *where)
		1606	{
		1607	if (!where)
		1608	{
		1609	char *dump = dump_object (op);
		1610	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1611	free (dump);
		1612	return op;
		1613	}
		1614
		1615	if (where->head)
		1616	{
		1617	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1618	where = where->head;
		1619	}
		1620
		1621	return where->insert (op);
		1622	}
		1623
1878	/*	1624	/*
1879	* insert_ob_in_ob(op,environment):	1625	* env->insert (op)
1880	* This function inserts the object op in the linked list	1626	* This function inserts the object op in the linked list
1881	* inside the object environment.	1627	* inside the object environment.
1882	*	1628	*
1883	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1884	* the inventory at the last position or next to other objects of the same
1885	* type.
1886	* Frank: Now sorted by type, archetype and magic!
1887	*
1888	* The function returns now pointer to inserted item, and return value can	1629	* The function returns now pointer to inserted item, and return value can
1889	* be != op, if items are merged. -Tero	1630	* be != op, if items are merged. -Tero
1890	*/	1631	*/
1891		1632
1892	object *insert_ob_in_ob(object *op,object *where) {	1633	object *
		1634	object::insert (object *op)
		1635	{
1893	object *tmp, *otmp;	1636	object *tmp, *otmp;
1894		1637
1895	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1638	if (!QUERY_FLAG (op, FLAG_REMOVED))
1896	dump_object(op);	1639	op->remove ();
1897	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1640
1898	return op;
1899	}
1900	if(where==NULL) {
1901	dump_object(op);
1902	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1903	return op;
1904	}
1905	if (where->head) {
1906	LOG(llevDebug,
1907	"Warning: Tried to insert object wrong part of multipart object.\n");
1908	where = where->head;
1909	}
1910	if (op->more) {	1641	if (op->more)
		1642	{
1911	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1643	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1912	op->name, op->count);
1913	return op;	1644	return op;
1914	}	1645	}
		1646
1915	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1647	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1916	CLEAR_FLAG(op, FLAG_REMOVED);	1648	CLEAR_FLAG (op, FLAG_REMOVED);
1917	if(op->nrof) {	1649	if (op->nrof)
		1650	{
1918	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1651	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1919	if ( CAN_MERGE(tmp,op) ) {	1652	if (object::can_merge (tmp, op))
		1653	{
1920	/* return the original object and remove inserted object	1654	/* return the original object and remove inserted object
1921	(client needs the original object) */	1655	(client needs the original object) */
1922	tmp->nrof += op->nrof;	1656	tmp->nrof += op->nrof;
1923	/* Weight handling gets pretty funky. Since we are adding to	1657	/* Weight handling gets pretty funky. Since we are adding to
1924	* tmp->nrof, we need to increase the weight.	1658	* tmp->nrof, we need to increase the weight.
1925	*/	1659	*/
1926	add_weight (where, op->weight*op->nrof);	1660	add_weight (this, op->weight * op->nrof);
1927	SET_FLAG(op, FLAG_REMOVED);	1661	SET_FLAG (op, FLAG_REMOVED);
1928	free_object(op); /* free the inserted object */	1662	op->destroy (); /* free the inserted object */
1929	op = tmp;	1663	op = tmp;
1930	remove_ob (op); /* and fix old object's links */	1664	op->remove (); /* and fix old object's links */
1931	CLEAR_FLAG(op, FLAG_REMOVED);	1665	CLEAR_FLAG (op, FLAG_REMOVED);
1932	break;	1666	break;
1933	}	1667	}
1934		1668
1935	/* I assume combined objects have no inventory	1669	/* I assume combined objects have no inventory
1936	* We add the weight - this object could have just been removed	1670	* We add the weight - this object could have just been removed
1937	* (if it was possible to merge). calling remove_ob will subtract	1671	* (if it was possible to merge). calling remove_ob will subtract
1938	* the weight, so we need to add it in again, since we actually do	1672	* the weight, so we need to add it in again, since we actually do
1939	* the linking below	1673	* the linking below
1940	*/	1674	*/
1941	add_weight (where, op->weight*op->nrof);	1675	add_weight (this, op->weight * op->nrof);
		1676	}
1942	} else	1677	else
1943	add_weight (where, (op->weight+op->carrying));	1678	add_weight (this, (op->weight + op->carrying));
1944		1679
1945	otmp=is_player_inv(where);	1680	otmp = this->in_player ();
1946	if (otmp&&otmp->contr!=NULL) {	1681	if (otmp && otmp->contr)
1947	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1682	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1948	fix_player(otmp);	1683	otmp->update_stats ();
1949	}
1950		1684
1951	op->map=NULL;	1685	op->map = 0;
1952	op->env=where;	1686	op->env = this;
1953	op->above=NULL;	1687	op->above = 0;
1954	op->below=NULL;	1688	op->below = 0;
1955	op->x=0,op->y=0;	1689	op->x = 0, op->y = 0;
1956	op->ox=0,op->oy=0;
1957		1690
1958	/* reset the light list and los of the players on the map */	1691	/* reset the light list and los of the players on the map */
1959	if((op->glow_radius!=0)&&where->map)	1692	if ((op->glow_radius != 0) && map)
1960	{	1693	{
1961	#ifdef DEBUG_LIGHTS	1694	#ifdef DEBUG_LIGHTS
1962	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1695	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1963	op->name);
1964	#endif /* DEBUG_LIGHTS */	1696	#endif /* DEBUG_LIGHTS */
1965	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1697	if (MAP_DARKNESS (map))
		1698	update_all_los (map, x, y);
1966	}	1699	}
1967		1700
1968	/* Client has no idea of ordering so lets not bother ordering it here.	1701	/* Client has no idea of ordering so lets not bother ordering it here.
1969	* It sure simplifies this function...	1702	* It sure simplifies this function...
1970	*/	1703	*/
1971	if (where->inv==NULL)	1704	if (!inv)
1972	where->inv=op;	1705	inv = op;
1973	else {	1706	else
		1707	{
1974	op->below = where->inv;	1708	op->below = inv;
1975	op->below->above = op;	1709	op->below->above = op;
1976	where->inv = op;	1710	inv = op;
1977	}	1711	}
		1712
1978	return op;	1713	return op;
1979	}	1714	}
1980		1715
1981	/*	1716	/*
1982	* Checks if any objects has a move_type that matches objects	1717	* Checks if any objects has a move_type that matches objects
…		…
1997	* MSW 2001-07-08: Check all objects on space, not just those below	1732	* MSW 2001-07-08: Check all objects on space, not just those below
1998	* object being inserted. insert_ob_in_map may not put new objects	1733	* object being inserted. insert_ob_in_map may not put new objects
1999	* on top.	1734	* on top.
2000	*/	1735	*/
2001		1736
		1737	int
2002	int check_move_on (object *op, object *originator)	1738	check_move_on (object *op, object *originator)
2003	{	1739	{
2004	object *tmp;	1740	object *tmp;
2005	tag_t tag;
2006	mapstruct *m=op->map;	1741	maptile *m = op->map;
2007	int x=op->x, y=op->y;	1742	int x = op->x, y = op->y;
		1743
2008	MoveType move_on, move_slow, move_block;	1744	MoveType move_on, move_slow, move_block;
2009		1745
2010	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1746	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2011	return 0;
2012
2013	tag = op->count;
2014
2015	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
2016	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
2017	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
2018
2019	/* if nothing on this space will slow op down or be applied,
2020	* no need to do checking below. have to make sure move_type
2021	* is set, as lots of objects don't have it set - we treat that
2022	* as walking.
2023	*/
2024	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
2025	return 0;
2026
2027	/* This is basically inverse logic of that below - basically,
2028	* if the object can avoid the move on or slow move, they do so,
2029	* but can't do it if the alternate movement they are using is
2030	* blocked. Logic on this seems confusing, but does seem correct.
2031	*/
2032	if ((op->move_type & ~move_on & ~move_block) != 0 &&
2033	(op->move_type & ~move_slow & ~move_block) != 0) return 0;
2034
2035	/* The objects have to be checked from top to bottom.
2036	* Hence, we first go to the top:
2037	*/
2038
2039	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&
2040	tmp->above!=NULL; tmp=tmp->above) {
2041	/* Trim the search when we find the first other spell effect
2042	* this helps performance so that if a space has 50 spell objects,
2043	* we don't need to check all of them.
2044	*/
2045	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;
2046	}
2047	for(;tmp!=NULL; tmp=tmp->below) {
2048	if (tmp == op) continue; /* Can't apply yourself */
2049
2050	/* Check to see if one of the movement types should be slowed down.
2051	* Second check makes sure that the movement types not being slowed
2052	* (~slow_move) is not blocked on this space - just because the
2053	* space doesn't slow down swimming (for example), if you can't actually
2054	* swim on that space, can't use it to avoid the penalty.
2055	*/
2056	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {
2057	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2058	((op->move_type & tmp->move_slow) &&
2059	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {
2060
2061	float diff;
2062
2063	diff = tmp->move_slow_penalty*FABS(op->speed);
2064	if (op->type == PLAYER) {
2065	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||
2066	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {
2067	diff /= 4.0;
2068	}
2069	}
2070	op->speed_left -= diff;
2071	}
2072	}
2073
2074	/* Basically same logic as above, except now for actual apply. */
2075	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2076	((op->move_type & tmp->move_on) &&
2077	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {
2078
2079	move_apply(tmp, op, originator);
2080	if (was_destroyed (op, tag))
2081	return 1;
2082
2083	/* what the person/creature stepped onto has moved the object
2084	* someplace new. Don't process any further - if we did,
2085	* have a feeling strange problems would result.
2086	*/
2087	if (op->map != m || op->x != x || op->y != y) return 0;
2088	}
2089	}
2090	return 0;	1747	return 0;
		1748
		1749	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1750	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		1751	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		1752
		1753	/* if nothing on this space will slow op down or be applied,
		1754	* no need to do checking below. have to make sure move_type
		1755	* is set, as lots of objects don't have it set - we treat that
		1756	* as walking.
		1757	*/
		1758	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		1759	return 0;
		1760
		1761	/* This is basically inverse logic of that below - basically,
		1762	* if the object can avoid the move on or slow move, they do so,
		1763	* but can't do it if the alternate movement they are using is
		1764	* blocked. Logic on this seems confusing, but does seem correct.
		1765	*/
		1766	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		1767	return 0;
		1768
		1769	/* The objects have to be checked from top to bottom.
		1770	* Hence, we first go to the top:
		1771	*/
		1772
		1773	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
		1774	{
		1775	/* Trim the search when we find the first other spell effect
		1776	* this helps performance so that if a space has 50 spell objects,
		1777	* we don't need to check all of them.
		1778	*/
		1779	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1780	break;
		1781	}
		1782
		1783	for (; tmp; tmp = tmp->below)
		1784	{
		1785	if (tmp == op)
		1786	continue; /* Can't apply yourself */
		1787
		1788	/* Check to see if one of the movement types should be slowed down.
		1789	* Second check makes sure that the movement types not being slowed
		1790	* (~slow_move) is not blocked on this space - just because the
		1791	* space doesn't slow down swimming (for example), if you can't actually
		1792	* swim on that space, can't use it to avoid the penalty.
		1793	*/
		1794	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1795	{
		1796	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		1797	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1798	{
		1799
		1800	float
		1801	diff = tmp->move_slow_penalty * FABS (op->speed);
		1802
		1803	if (op->type == PLAYER)
		1804	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		1805	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		1806	diff /= 4.0;
		1807
		1808	op->speed_left -= diff;
		1809	}
		1810	}
		1811
		1812	/* Basically same logic as above, except now for actual apply. */
		1813	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		1814	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		1815	{
		1816	move_apply (tmp, op, originator);
		1817
		1818	if (op->destroyed ())
		1819	return 1;
		1820
		1821	/* what the person/creature stepped onto has moved the object
		1822	* someplace new. Don't process any further - if we did,
		1823	* have a feeling strange problems would result.
		1824	*/
		1825	if (op->map != m || op->x != x || op->y != y)
		1826	return 0;
		1827	}
		1828	}
		1829
		1830	return 0;
2091	}	1831	}
2092		1832
2093	/*	1833	/*
2094	* present_arch(arch, map, x, y) searches for any objects with	1834	* present_arch(arch, map, x, y) searches for any objects with
2095	* a matching archetype at the given map and coordinates.	1835	* a matching archetype at the given map and coordinates.
2096	* The first matching object is returned, or NULL if none.	1836	* The first matching object is returned, or NULL if none.
2097	*/	1837	*/
2098		1838
		1839	object *
2099	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1840	present_arch (const archetype *at, maptile *m, int x, int y)
		1841	{
2100	object *tmp;	1842	object *
		1843	tmp;
		1844
2101	if(m==NULL || out_of_map(m,x,y)) {	1845	if (m == NULL || out_of_map (m, x, y))
		1846	{
2102	LOG(llevError,"Present_arch called outside map.\n");	1847	LOG (llevError, "Present_arch called outside map.\n");
2103	return NULL;	1848	return NULL;
2104	}	1849	}
2105	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1850	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2106	if(tmp->arch == at)	1851	if (tmp->arch == at)
2107	return tmp;	1852	return tmp;
2108	return NULL;	1853	return NULL;
2109	}	1854	}
2110		1855
2111	/*	1856	/*
2112	* present(type, map, x, y) searches for any objects with	1857	* present(type, map, x, y) searches for any objects with
2113	* a matching type variable at the given map and coordinates.	1858	* a matching type variable at the given map and coordinates.
2114	* The first matching object is returned, or NULL if none.	1859	* The first matching object is returned, or NULL if none.
2115	*/	1860	*/
2116		1861
		1862	object *
2117	object *present(unsigned char type,mapstruct *m, int x,int y) {	1863	present (unsigned char type, maptile *m, int x, int y)
		1864	{
2118	object *tmp;	1865	object *
		1866	tmp;
		1867
2119	if(out_of_map(m,x,y)) {	1868	if (out_of_map (m, x, y))
		1869	{
2120	LOG(llevError,"Present called outside map.\n");	1870	LOG (llevError, "Present called outside map.\n");
2121	return NULL;	1871	return NULL;
2122	}	1872	}
2123	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1873	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2124	if(tmp->type==type)	1874	if (tmp->type == type)
2125	return tmp;	1875	return tmp;
2126	return NULL;	1876	return NULL;
2127	}	1877	}
2128		1878
2129	/*	1879	/*
2130	* present_in_ob(type, object) searches for any objects with	1880	* present_in_ob(type, object) searches for any objects with
2131	* a matching type variable in the inventory of the given object.	1881	* a matching type variable in the inventory of the given object.
2132	* The first matching object is returned, or NULL if none.	1882	* The first matching object is returned, or NULL if none.
2133	*/	1883	*/
2134		1884
		1885	object *
2135	object *present_in_ob(unsigned char type, const object *op) {	1886	present_in_ob (unsigned char type, const object *op)
		1887	{
2136	object *tmp;	1888	object *
		1889	tmp;
		1890
2137	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1891	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2138	if(tmp->type==type)	1892	if (tmp->type == type)
2139	return tmp;	1893	return tmp;
2140	return NULL;	1894	return NULL;
2141	}	1895	}
2142		1896
2143	/*	1897	/*
…		…
2153	* the object name, not the archetype name. this is so that the	1907	* the object name, not the archetype name. this is so that the
2154	* spell code can use one object type (force), but change it's name	1908	* spell code can use one object type (force), but change it's name
2155	* to be unique.	1909	* to be unique.
2156	*/	1910	*/
2157		1911
		1912	object *
2158	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1913	present_in_ob_by_name (int type, const char *str, const object *op)
		1914	{
2159	object *tmp;	1915	object *
		1916	tmp;
2160		1917
2161	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1918	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1919	{
2162	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1920	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2163	return tmp;	1921	return tmp;
2164	}	1922	}
2165	return NULL;	1923	return NULL;
2166	}	1924	}
2167		1925
2168	/*	1926	/*
2169	* present_arch_in_ob(archetype, object) searches for any objects with	1927	* present_arch_in_ob(archetype, object) searches for any objects with
2170	* a matching archetype in the inventory of the given object.	1928	* a matching archetype in the inventory of the given object.
2171	* The first matching object is returned, or NULL if none.	1929	* The first matching object is returned, or NULL if none.
2172	*/	1930	*/
2173		1931
		1932	object *
2174	object *present_arch_in_ob(const archetype *at, const object *op) {	1933	present_arch_in_ob (const archetype *at, const object *op)
		1934	{
2175	object *tmp;	1935	object *
		1936	tmp;
		1937
2176	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1938	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
2177	if( tmp->arch == at)	1939	if (tmp->arch == at)
2178	return tmp;	1940	return tmp;
2179	return NULL;	1941	return NULL;
2180	}	1942	}
2181		1943
2182	/*	1944	/*
2183	* activate recursively a flag on an object inventory	1945	* activate recursively a flag on an object inventory
2184	*/	1946	*/
		1947	void
2185	void flag_inv(object*op, int flag){	1948	flag_inv (object *op, int flag)
		1949	{
2186	object *tmp;	1950	object *
		1951	tmp;
		1952
2187	if(op->inv)	1953	if (op->inv)
2188	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1954	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1955	{
2189	SET_FLAG(tmp, flag);	1956	SET_FLAG (tmp, flag);
2190	flag_inv(tmp,flag);	1957	flag_inv (tmp, flag);
2191	}	1958	}
2192	}/*	1959	} /*
2193	* desactivate recursively a flag on an object inventory	1960	* desactivate recursively a flag on an object inventory
2194	*/	1961	*/
		1962	void
2195	void unflag_inv(object*op, int flag){	1963	unflag_inv (object *op, int flag)
		1964	{
2196	object *tmp;	1965	object *
		1966	tmp;
		1967
2197	if(op->inv)	1968	if (op->inv)
2198	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1969	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1970	{
2199	CLEAR_FLAG(tmp, flag);	1971	CLEAR_FLAG (tmp, flag);
2200	unflag_inv(tmp,flag);	1972	unflag_inv (tmp, flag);
2201	}	1973	}
2202	}	1974	}
2203		1975
2204	/*	1976	/*
2205	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1977	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2206	* all it's inventory (recursively).	1978	* all it's inventory (recursively).
2207	* If checksums are used, a player will get set_cheat called for	1979	* If checksums are used, a player will get set_cheat called for
2208	* him/her-self and all object carried by a call to this function.	1980	* him/her-self and all object carried by a call to this function.
2209	*/	1981	*/
2210		1982
		1983	void
2211	void set_cheat(object *op) {	1984	set_cheat (object *op)
		1985	{
2212	SET_FLAG(op, FLAG_WAS_WIZ);	1986	SET_FLAG (op, FLAG_WAS_WIZ);
2213	flag_inv(op, FLAG_WAS_WIZ);	1987	flag_inv (op, FLAG_WAS_WIZ);
2214	}	1988	}
2215		1989
2216	/*	1990	/*
2217	* find_free_spot(object, map, x, y, start, stop) will search for	1991	* find_free_spot(object, map, x, y, start, stop) will search for
2218	* a spot at the given map and coordinates which will be able to contain	1992	* a spot at the given map and coordinates which will be able to contain
…		…
2233	* to know if the space in question will block the object. We can't use	2007	* to know if the space in question will block the object. We can't use
2234	* the archetype because that isn't correct if the monster has been	2008	* the archetype because that isn't correct if the monster has been
2235	* customized, changed states, etc.	2009	* customized, changed states, etc.
2236	*/	2010	*/
2237		2011
		2012	int
2238	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2013	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2014	{
		2015	int
		2016	i,
2239	int i,index=0, flag;	2017	index = 0, flag;
		2018	static int
2240	static int altern[SIZEOFFREE];	2019	altern[SIZEOFFREE];
2241		2020
2242	for(i=start;i<stop;i++) {	2021	for (i = start; i < stop; i++)
		2022	{
2243	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2023	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2244	if(!flag)	2024	if (!flag)
2245	altern[index++]=i;	2025	altern[index++] = i;
2246		2026
2247	/* Basically, if we find a wall on a space, we cut down the search size.	2027	/* Basically, if we find a wall on a space, we cut down the search size.
2248	* In this way, we won't return spaces that are on another side of a wall.	2028	* In this way, we won't return spaces that are on another side of a wall.
2249	* This mostly work, but it cuts down the search size in all directions -	2029	* This mostly work, but it cuts down the search size in all directions -
2250	* if the space being examined only has a wall to the north and empty	2030	* if the space being examined only has a wall to the north and empty
2251	* spaces in all the other directions, this will reduce the search space	2031	* spaces in all the other directions, this will reduce the search space
2252	* to only the spaces immediately surrounding the target area, and	2032	* to only the spaces immediately surrounding the target area, and
2253	* won't look 2 spaces south of the target space.	2033	* won't look 2 spaces south of the target space.
2254	*/	2034	*/
2255	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2035	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2256	stop=maxfree[i];	2036	stop = maxfree[i];
2257	}	2037	}
2258	if(!index) return -1;	2038
		2039	if (!index)
		2040	return -1;
		2041
2259	return altern[RANDOM()%index];	2042	return altern[RANDOM () % index];
2260	}	2043	}
2261		2044
2262	/*	2045	/*
2263	* find_first_free_spot(archetype, mapstruct, x, y) works like	2046	* find_first_free_spot(archetype, maptile, x, y) works like
2264	* find_free_spot(), but it will search max number of squares.	2047	* find_free_spot(), but it will search max number of squares.
2265	* But it will return the first available spot, not a random choice.	2048	* But it will return the first available spot, not a random choice.
2266	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2049	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2267	*/	2050	*/
2268		2051
		2052	int
2269	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2053	find_first_free_spot (const object *ob, maptile *m, int x, int y)
		2054	{
		2055	int
2270	int i;	2056	i;
		2057
2271	for(i=0;i<SIZEOFFREE;i++) {	2058	for (i = 0; i < SIZEOFFREE; i++)
		2059	{
2272	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2060	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2273	return i;	2061	return i;
2274	}	2062	}
2275	return -1;	2063	return -1;
2276	}	2064	}
2277		2065
2278	/*	2066	/*
2279	* The function permute(arr, begin, end) randomly reorders the array	2067	* The function permute(arr, begin, end) randomly reorders the array
2280	* arr[begin..end-1].	2068	* arr[begin..end-1].
2281	*/	2069	*/
		2070	static void
2282	static void permute(int *arr, int begin, int end)	2071	permute (int *arr, int begin, int end)
2283	{	2072	{
2284	int i, j, tmp, len;	2073	int
		2074	i,
		2075	j,
		2076	tmp,
		2077	len;
2285		2078
2286	len = end-begin;	2079	len = end - begin;
2287	for(i = begin; i < end; i++)	2080	for (i = begin; i < end; i++)
2288	{	2081	{
2289	j = begin+RANDOM()%len;	2082	j = begin + RANDOM () % len;
2290		2083
2291	tmp = arr[i];	2084	tmp = arr[i];
2292	arr[i] = arr[j];	2085	arr[i] = arr[j];
2293	arr[j] = tmp;	2086	arr[j] = tmp;
2294	}	2087	}
2295	}	2088	}
2296		2089
2297	/* new function to make monster searching more efficient, and effective!	2090	/* new function to make monster searching more efficient, and effective!
2298	* This basically returns a randomized array (in the passed pointer) of	2091	* This basically returns a randomized array (in the passed pointer) of
2299	* the spaces to find monsters. In this way, it won't always look for	2092	* the spaces to find monsters. In this way, it won't always look for
2300	* monsters to the north first. However, the size of the array passed	2093	* monsters to the north first. However, the size of the array passed
2301	* covers all the spaces, so within that size, all the spaces within	2094	* covers all the spaces, so within that size, all the spaces within
2302	* the 3x3 area will be searched, just not in a predictable order.	2095	* the 3x3 area will be searched, just not in a predictable order.
2303	*/	2096	*/
		2097	void
2304	void get_search_arr(int *search_arr)	2098	get_search_arr (int *search_arr)
2305	{	2099	{
		2100	int
2306	int i;	2101	i;
2307		2102
2308	for(i = 0; i < SIZEOFFREE; i++)	2103	for (i = 0; i < SIZEOFFREE; i++)
2309	{	2104	{
2310	search_arr[i] = i;	2105	search_arr[i] = i;
2311	}	2106	}
2312		2107
2313	permute(search_arr, 1, SIZEOFFREE1+1);	2108	permute (search_arr, 1, SIZEOFFREE1 + 1);
2314	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2109	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2315	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2110	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2316	}	2111	}
2317		2112
2318	/*	2113	/*
2319	* find_dir(map, x, y, exclude) will search some close squares in the	2114	* find_dir(map, x, y, exclude) will search some close squares in the
2320	* given map at the given coordinates for live objects.	2115	* given map at the given coordinates for live objects.
…		…
2326	* is actually want is going to try and move there. We need this info	2121	* is actually want is going to try and move there. We need this info
2327	* because we have to know what movement the thing looking to move	2122	* because we have to know what movement the thing looking to move
2328	* there is capable of.	2123	* there is capable of.
2329	*/	2124	*/
2330		2125
		2126	int
2331	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2127	find_dir (maptile *m, int x, int y, object *exclude)
		2128	{
		2129	int
		2130	i,
2332	int i,max=SIZEOFFREE, mflags;	2131	max = SIZEOFFREE, mflags;
		2132
2333	sint16 nx, ny;	2133	sint16 nx, ny;
2334	object *tmp;	2134	object *
2335	mapstruct *mp;	2135	tmp;
		2136	maptile *
		2137	mp;
		2138
2336	MoveType blocked, move_type;	2139	MoveType blocked, move_type;
2337		2140
2338	if (exclude && exclude->head) {	2141	if (exclude && exclude->head)
		2142	{
2339	exclude = exclude->head;	2143	exclude = exclude->head;
2340	move_type = exclude->move_type;	2144	move_type = exclude->move_type;
2341	} else {	2145	}
		2146	else
		2147	{
2342	/* If we don't have anything, presume it can use all movement types. */	2148	/* If we don't have anything, presume it can use all movement types. */
2343	move_type=MOVE_ALL;	2149	move_type = MOVE_ALL;
		2150	}
		2151
		2152	for (i = 1; i < max; i++)
2344	}	2153	{
2345		2154	mp = m;
2346	for(i=1;i<max;i++) {
2347	mp = m;
2348	nx = x + freearr_x[i];	2155	nx = x + freearr_x[i];
2349	ny = y + freearr_y[i];	2156	ny = y + freearr_y[i];
2350		2157
2351	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2158	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2159
2352	if (mflags & P_OUT_OF_MAP) {	2160	if (mflags & P_OUT_OF_MAP)
2353	max = maxfree[i];	2161	max = maxfree[i];
2354	} else {	2162	else
		2163	{
2355	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2164	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
2356		2165
2357	if ((move_type & blocked) == move_type) {	2166	if ((move_type & blocked) == move_type)
2358	max=maxfree[i];	2167	max = maxfree[i];
2359	} else if (mflags & P_IS_ALIVE) {	2168	else if (mflags & P_IS_ALIVE)
		2169	{
2360	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2170	for (tmp = GET_MAP_OB (mp, nx, ny); tmp; tmp = tmp->above)
2361	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2171	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2362	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2172	break;
2363	break;	2173
2364	}	2174	if (tmp)
2365	}
2366	if(tmp) {
2367	return freedir[i];	2175	return freedir[i];
2368	}	2176	}
		2177	}
2369	}	2178	}
2370	}	2179
2371	}
2372	return 0;	2180	return 0;
2373	}	2181	}
2374		2182
2375	/*	2183	/*
2376	* distance(object 1, object 2) will return the square of the	2184	* distance(object 1, object 2) will return the square of the
2377	* distance between the two given objects.	2185	* distance between the two given objects.
2378	*/	2186	*/
2379		2187
		2188	int
2380	int distance(const object *ob1, const object *ob2) {	2189	distance (const object *ob1, const object *ob2)
		2190	{
2381	int i;	2191	int i;
2382	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2192
2383	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2193	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2384	return i;	2194	return i;
2385	}	2195	}
2386		2196
2387	/*	2197	/*
2388	* find_dir_2(delta-x,delta-y) will return a direction in which	2198	* find_dir_2(delta-x,delta-y) will return a direction in which
2389	* an object which has subtracted the x and y coordinates of another	2199	* an object which has subtracted the x and y coordinates of another
2390	* object, needs to travel toward it.	2200	* object, needs to travel toward it.
2391	*/	2201	*/
2392		2202
		2203	int
2393	int find_dir_2(int x, int y) {	2204	find_dir_2 (int x, int y)
		2205	{
2394	int q;	2206	int q;
2395		2207
2396	if(y)	2208	if (y)
2397	q=x*100/y;	2209	q = x * 100 / y;
2398	else if (x)	2210	else if (x)
2399	q= -300*x;	2211	q = -300 * x;
2400	else	2212	else
2401	return 0;	2213	return 0;
2402		2214
2403	if(y>0) {	2215	if (y > 0)
		2216	{
2404	if(q < -242)	2217	if (q < -242)
2405	return 3 ;	2218	return 3;
2406	if (q < -41)	2219	if (q < -41)
2407	return 2 ;	2220	return 2;
2408	if (q < 41)	2221	if (q < 41)
2409	return 1 ;	2222	return 1;
2410	if (q < 242)	2223	if (q < 242)
2411	return 8 ;	2224	return 8;
2412	return 7 ;	2225	return 7;
2413	}	2226	}
2414		2227
2415	if (q < -242)	2228	if (q < -242)
2416	return 7 ;	2229	return 7;
2417	if (q < -41)	2230	if (q < -41)
2418	return 6 ;	2231	return 6;
2419	if (q < 41)	2232	if (q < 41)
2420	return 5 ;	2233	return 5;
2421	if (q < 242)	2234	if (q < 242)
2422	return 4 ;	2235	return 4;
2423		2236
2424	return 3 ;	2237	return 3;
2425	}	2238	}
2426		2239
2427	/*	2240	/*
2428	* absdir(int): Returns a number between 1 and 8, which represent	2241	* absdir(int): Returns a number between 1 and 8, which represent
2429	* the "absolute" direction of a number (it actually takes care of	2242	* the "absolute" direction of a number (it actually takes care of
2430	* "overflow" in previous calculations of a direction).	2243	* "overflow" in previous calculations of a direction).
2431	*/	2244	*/
2432		2245
		2246	int
2433	int absdir(int d) {	2247	absdir (int d)
2434	while(d<1) d+=8;	2248	{
2435	while(d>8) d-=8;	2249	while (d < 1)
		2250	d += 8;
		2251	while (d > 8)
		2252	d -= 8;
2436	return d;	2253	return d;
2437	}	2254	}
2438		2255
2439	/*	2256	/*
2440	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2257	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2441	* between two directions (which are expected to be absolute (see absdir())	2258	* between two directions (which are expected to be absolute (see absdir())
2442	*/	2259	*/
2443		2260
		2261	int
2444	int dirdiff(int dir1, int dir2) {	2262	dirdiff (int dir1, int dir2)
		2263	{
2445	int d;	2264	int
		2265	d;
		2266
2446	d = abs(dir1 - dir2);	2267	d = abs (dir1 - dir2);
2447	if(d>4)	2268	if (d > 4)
2448	d = 8 - d;	2269	d = 8 - d;
2449	return d;	2270	return d;
2450	}	2271	}
2451		2272
2452	/* peterm:	2273	/* peterm:
…		…
2457	* direction 4, 14, or 16 to get back to where we are.	2278	* direction 4, 14, or 16 to get back to where we are.
2458	* Moved from spell_util.c to object.c with the other related direction	2279	* Moved from spell_util.c to object.c with the other related direction
2459	* functions.	2280	* functions.
2460	*/	2281	*/
2461		2282
		2283	int
2462	int reduction_dir[SIZEOFFREE][3] = {	2284	reduction_dir[SIZEOFFREE][3] = {
2463	{0,0,0}, /* 0 */	2285	{0, 0, 0}, /* 0 */
2464	{0,0,0}, /* 1 */	2286	{0, 0, 0}, /* 1 */
2465	{0,0,0}, /* 2 */	2287	{0, 0, 0}, /* 2 */
2466	{0,0,0}, /* 3 */	2288	{0, 0, 0}, /* 3 */
2467	{0,0,0}, /* 4 */	2289	{0, 0, 0}, /* 4 */
2468	{0,0,0}, /* 5 */	2290	{0, 0, 0}, /* 5 */
2469	{0,0,0}, /* 6 */	2291	{0, 0, 0}, /* 6 */
2470	{0,0,0}, /* 7 */	2292	{0, 0, 0}, /* 7 */
2471	{0,0,0}, /* 8 */	2293	{0, 0, 0}, /* 8 */
2472	{8,1,2}, /* 9 */	2294	{8, 1, 2}, /* 9 */
2473	{1,2,-1}, /* 10 */	2295	{1, 2, -1}, /* 10 */
2474	{2,10,12}, /* 11 */	2296	{2, 10, 12}, /* 11 */
2475	{2,3,-1}, /* 12 */	2297	{2, 3, -1}, /* 12 */
2476	{2,3,4}, /* 13 */	2298	{2, 3, 4}, /* 13 */
2477	{3,4,-1}, /* 14 */	2299	{3, 4, -1}, /* 14 */
2478	{4,14,16}, /* 15 */	2300	{4, 14, 16}, /* 15 */
2479	{5,4,-1}, /* 16 */	2301	{5, 4, -1}, /* 16 */
2480	{4,5,6}, /* 17 */	2302	{4, 5, 6}, /* 17 */
2481	{6,5,-1}, /* 18 */	2303	{6, 5, -1}, /* 18 */
2482	{6,20,18}, /* 19 */	2304	{6, 20, 18}, /* 19 */
2483	{7,6,-1}, /* 20 */	2305	{7, 6, -1}, /* 20 */
2484	{6,7,8}, /* 21 */	2306	{6, 7, 8}, /* 21 */
2485	{7,8,-1}, /* 22 */	2307	{7, 8, -1}, /* 22 */
2486	{8,22,24}, /* 23 */	2308	{8, 22, 24}, /* 23 */
2487	{8,1,-1}, /* 24 */	2309	{8, 1, -1}, /* 24 */
2488	{24,9,10}, /* 25 */	2310	{24, 9, 10}, /* 25 */
2489	{9,10,-1}, /* 26 */	2311	{9, 10, -1}, /* 26 */
2490	{10,11,-1}, /* 27 */	2312	{10, 11, -1}, /* 27 */
2491	{27,11,29}, /* 28 */	2313	{27, 11, 29}, /* 28 */
2492	{11,12,-1}, /* 29 */	2314	{11, 12, -1}, /* 29 */
2493	{12,13,-1}, /* 30 */	2315	{12, 13, -1}, /* 30 */
2494	{12,13,14}, /* 31 */	2316	{12, 13, 14}, /* 31 */
2495	{13,14,-1}, /* 32 */	2317	{13, 14, -1}, /* 32 */
2496	{14,15,-1}, /* 33 */	2318	{14, 15, -1}, /* 33 */
2497	{33,15,35}, /* 34 */	2319	{33, 15, 35}, /* 34 */
2498	{16,15,-1}, /* 35 */	2320	{16, 15, -1}, /* 35 */
2499	{17,16,-1}, /* 36 */	2321	{17, 16, -1}, /* 36 */
2500	{18,17,16}, /* 37 */	2322	{18, 17, 16}, /* 37 */
2501	{18,17,-1}, /* 38 */	2323	{18, 17, -1}, /* 38 */
2502	{18,19,-1}, /* 39 */	2324	{18, 19, -1}, /* 39 */
2503	{41,19,39}, /* 40 */	2325	{41, 19, 39}, /* 40 */
2504	{19,20,-1}, /* 41 */	2326	{19, 20, -1}, /* 41 */
2505	{20,21,-1}, /* 42 */	2327	{20, 21, -1}, /* 42 */
2506	{20,21,22}, /* 43 */	2328	{20, 21, 22}, /* 43 */
2507	{21,22,-1}, /* 44 */	2329	{21, 22, -1}, /* 44 */
2508	{23,22,-1}, /* 45 */	2330	{23, 22, -1}, /* 45 */
2509	{45,47,23}, /* 46 */	2331	{45, 47, 23}, /* 46 */
2510	{23,24,-1}, /* 47 */	2332	{23, 24, -1}, /* 47 */
2511	{24,9,-1}}; /* 48 */	2333	{24, 9, -1}
		2334	}; /* 48 */
2512		2335
2513	/* Recursive routine to step back and see if we can	2336	/* Recursive routine to step back and see if we can
2514	* find a path to that monster that we found. If not,	2337	* find a path to that monster that we found. If not,
2515	* we don't bother going toward it. Returns 1 if we	2338	* we don't bother going toward it. Returns 1 if we
2516	* can see a direct way to get it	2339	* can see a direct way to get it
2517	* Modified to be map tile aware -.MSW	2340	* Modified to be map tile aware -.MSW
2518	*/	2341	*/
2519		2342	int
2520
2521	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2343	can_see_monsterP (maptile *m, int x, int y, int dir)
		2344	{
2522	sint16 dx, dy;	2345	sint16 dx, dy;
2523	int mflags;	2346	int mflags;
2524		2347
		2348	if (dir < 0)
2525	if(dir<0) return 0; /* exit condition: invalid direction */	2349	return 0; /* exit condition: invalid direction */
2526		2350
2527	dx = x + freearr_x[dir];	2351	dx = x + freearr_x[dir];
2528	dy = y + freearr_y[dir];	2352	dy = y + freearr_y[dir];
2529		2353
2530	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2354	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2531		2355
2532	/* This functional arguably was incorrect before - it was	2356	/* This functional arguably was incorrect before - it was
2533	* checking for P_WALL - that was basically seeing if	2357	* checking for P_WALL - that was basically seeing if
2534	* we could move to the monster - this is being more	2358	* we could move to the monster - this is being more
2535	* literal on if we can see it. To know if we can actually	2359	* literal on if we can see it. To know if we can actually
2536	* move to the monster, we'd need the monster passed in or	2360	* move to the monster, we'd need the monster passed in or
2537	* at least its move type.	2361	* at least its move type.
2538	*/	2362	*/
2539	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2363	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2364	return 0;
2540		2365
2541	/* yes, can see. */	2366	/* yes, can see. */
2542	if(dir < 9) return 1;	2367	if (dir < 9)
		2368	return 1;
		2369
2543	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2370	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2544	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2371	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2545	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2372	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2546	}	2373	}
2547		2374
2548
2549
2550	/*	2375	/*
2551	* can_pick(picker, item): finds out if an object is possible to be	2376	* can_pick(picker, item): finds out if an object is possible to be
2552	* picked up by the picker. Returnes 1 if it can be	2377	* picked up by the picker. Returnes 1 if it can be
2553	* picked up, otherwise 0.	2378	* picked up, otherwise 0.
2554	*	2379	*
…		…
2556	* core dumps if they do.	2381	* core dumps if they do.
2557	*	2382	*
2558	* Add a check so we can't pick up invisible objects (0.93.8)	2383	* Add a check so we can't pick up invisible objects (0.93.8)
2559	*/	2384	*/
2560		2385
		2386	int
2561	int can_pick(const object *who, const object *item) {	2387	can_pick (const object *who, const object *item)
		2388	{
2562	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2389	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2563	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2390	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2564	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2391	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2565	(who->type==PLAYER||item->weight<who->weight/3));
2566	}	2392	}
2567
2568		2393
2569	/*	2394	/*
2570	* create clone from object to another	2395	* create clone from object to another
2571	*/	2396	*/
		2397	object *
2572	object *object_create_clone (object *asrc) {	2398	object_create_clone (object *asrc)
		2399	{
2573	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2400	object *dst = 0, *tmp, *src, *part, *prev, *item;
2574		2401
2575	if(!asrc) return NULL;	2402	if (!asrc)
		2403	return 0;
		2404
2576	src = asrc;	2405	src = asrc;
2577	if(src->head)	2406	if (src->head)
2578	src = src->head;	2407	src = src->head;
2579		2408
2580	prev = NULL;	2409	prev = 0;
2581	for(part = src; part; part = part->more) {	2410	for (part = src; part; part = part->more)
2582	tmp = get_object();	2411	{
2583	copy_object(part,tmp);	2412	tmp = part->clone ();
2584	tmp->x -= src->x;	2413	tmp->x -= src->x;
2585	tmp->y -= src->y;	2414	tmp->y -= src->y;
		2415
2586	if(!part->head) {	2416	if (!part->head)
		2417	{
2587	dst = tmp;	2418	dst = tmp;
2588	tmp->head = NULL;
2589	} else {
2590	tmp->head = dst;	2419	tmp->head = 0;
2591	}	2420	}
		2421	else
		2422	tmp->head = dst;
		2423
2592	tmp->more = NULL;	2424	tmp->more = 0;
		2425
2593	if(prev)	2426	if (prev)
2594	prev->more = tmp;	2427	prev->more = tmp;
		2428
2595	prev = tmp;	2429	prev = tmp;
2596	}	2430	}
2597	/*** copy inventory ***/	2431
2598	for(item = src->inv; item; item = item->below) {	2432	for (item = src->inv; item; item = item->below)
2599	(void) insert_ob_in_ob(object_create_clone(item),dst);	2433	insert_ob_in_ob (object_create_clone (item), dst);
2600	}
2601		2434
2602	return dst;	2435	return dst;
2603	}
2604
2605	/* return true if the object was destroyed, 0 otherwise */
2606	int was_destroyed (const object *op, tag_t old_tag)
2607	{
2608	/* checking for FLAG_FREED isn't necessary, but makes this function more
2609	* robust */
2610	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2611	}	2436	}
2612		2437
2613	/* GROS - Creates an object using a string representing its content. */	2438	/* GROS - Creates an object using a string representing its content. */
2614	/* Basically, we save the content of the string to a temp file, then call */	2439	/* Basically, we save the content of the string to a temp file, then call */
2615	/* load_object on it. I admit it is a highly inefficient way to make things, */	2440	/* load_object on it. I admit it is a highly inefficient way to make things, */
2616	/* but it was simple to make and allows reusing the load_object function. */	2441	/* but it was simple to make and allows reusing the load_object function. */
2617	/* Remember not to use load_object_str in a time-critical situation. */	2442	/* Remember not to use load_object_str in a time-critical situation. */
2618	/* Also remember that multiparts objects are not supported for now. */	2443	/* Also remember that multiparts objects are not supported for now. */
2619		2444
		2445	object *
2620	object* load_object_str(const char *obstr)	2446	load_object_str (const char *obstr)
2621	{	2447	{
2622	object *op;	2448	object *op;
2623	FILE *tempfile;
2624	char filename[MAX_BUF];	2449	char filename[MAX_BUF];
		2450
2625	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2451	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
		2452
2626	tempfile=fopen(filename,"w");	2453	FILE *tempfile = fopen (filename, "w");
		2454
2627	if (tempfile == NULL)	2455	if (tempfile == NULL)
2628	{	2456	{
2629	LOG(llevError,"Error - Unable to access load object temp file\n");	2457	LOG (llevError, "Error - Unable to access load object temp file\n");
2630	return NULL;	2458	return NULL;
2631	};	2459	}
		2460
2632	fprintf(tempfile,obstr);	2461	fprintf (tempfile, obstr);
2633	fclose(tempfile);	2462	fclose (tempfile);
2634		2463
2635	op=get_object();	2464	op = object::create ();
2636		2465
2637	tempfile=fopen(filename,"r");	2466	object_thawer thawer (filename);
2638	if (tempfile == NULL)	2467
2639	{	2468	if (thawer)
2640	LOG(llevError,"Error - Unable to read object temp file\n");	2469	load_object (thawer, op, 0);
2641	return NULL;	2470
2642	};
2643	load_object(tempfile,op,LO_NEWFILE,0);
2644	LOG(llevDebug," load str completed, object=%s\n",op->name);	2471	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2645	CLEAR_FLAG(op,FLAG_REMOVED);	2472	CLEAR_FLAG (op, FLAG_REMOVED);
2646	fclose(tempfile);	2473
2647	return op;	2474	return op;
2648	}	2475	}
2649		2476
2650	/* This returns the first object in who's inventory that	2477	/* This returns the first object in who's inventory that
2651	* has the same type and subtype match.	2478	* has the same type and subtype match.
2652	* returns NULL if no match.	2479	* returns NULL if no match.
2653	*/	2480	*/
		2481	object *
2654	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2482	find_obj_by_type_subtype (const object *who, int type, int subtype)
2655	{	2483	{
2656	object *tmp;	2484	object *tmp;
2657		2485
2658	for (tmp=who->inv; tmp; tmp=tmp->below)	2486	for (tmp = who->inv; tmp; tmp = tmp->below)
2659	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2487	if (tmp->type == type && tmp->subtype == subtype)
		2488	return tmp;
2660		2489
2661	return NULL;	2490	return NULL;
2662	}	2491	}
2663		2492
2664	/* If ob has a field named key, return the link from the list,	2493	/* If ob has a field named key, return the link from the list,
2665	* otherwise return NULL.	2494	* otherwise return NULL.
2666	*	2495	*
2667	* key must be a passed in shared string - otherwise, this won't	2496	* key must be a passed in shared string - otherwise, this won't
2668	* do the desired thing.	2497	* do the desired thing.
2669	*/	2498	*/
		2499	key_value *
2670	key_value * get_ob_key_link(const object * ob, const char * key) {	2500	get_ob_key_link (const object *ob, const char *key)
		2501	{
2671	key_value * link;	2502	key_value *link;
2672		2503
2673	for (link = ob->key_values; link != NULL; link = link->next) {	2504	for (link = ob->key_values; link != NULL; link = link->next)
2674	if (link->key == key) {	2505	if (link->key == key)
2675	return link;	2506	return link;
2676	}	2507
2677	}
2678
2679	return NULL;	2508	return NULL;
2680	}	2509	}
2681		2510
2682	/*	2511	/*
2683	* Returns the value of op has an extra_field for key, or NULL.	2512	* Returns the value of op has an extra_field for key, or NULL.
2684	*	2513	*
2685	* The argument doesn't need to be a shared string.	2514	* The argument doesn't need to be a shared string.
2686	*	2515	*
2687	* The returned string is shared.	2516	* The returned string is shared.
2688	*/	2517	*/
		2518	const char *
2689	const char * get_ob_key_value(const object * op, const char * const key) {	2519	get_ob_key_value (const object *op, const char *const key)
		2520	{
2690	key_value * link;	2521	key_value *link;
2691	const char * canonical_key;	2522	shstr_cmp canonical_key (key);
		2523
		2524	if (!canonical_key)
2692		2525	{
2693	canonical_key = find_string(key);
2694
2695	if (canonical_key == NULL) {
2696	/* 1. There being a field named key on any object	2526	/* 1. There being a field named key on any object
2697	* implies there'd be a shared string to find.	2527	* implies there'd be a shared string to find.
2698	* 2. Since there isn't, no object has this field.	2528	* 2. Since there isn't, no object has this field.
2699	* 3. Therefore, *this* object doesn't have this field.	2529	* 3. Therefore, *this* object doesn't have this field.
2700	*/	2530	*/
2701	return NULL;	2531	return 0;
2702	}	2532	}
2703		2533
2704	/* This is copied from get_ob_key_link() above -	2534	/* This is copied from get_ob_key_link() above -
2705	* only 4 lines, and saves the function call overhead.	2535	* only 4 lines, and saves the function call overhead.
2706	*/	2536	*/
2707	for (link = op->key_values; link != NULL; link = link->next) {	2537	for (link = op->key_values; link; link = link->next)
2708	if (link->key == canonical_key) {	2538	if (link->key == canonical_key)
2709	return link->value;	2539	return link->value;
2710	}	2540
2711	}	2541	return 0;
2712	return NULL;
2713	}	2542	}
2714		2543
2715		2544
2716	/*	2545	/*
2717	* Updates the canonical_key in op to value.	2546	* Updates the canonical_key in op to value.
…		…
2721	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2550	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2722	* keys.	2551	* keys.
2723	*	2552	*
2724	* Returns TRUE on success.	2553	* Returns TRUE on success.
2725	*/	2554	*/
		2555	int
2726	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2556	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2557	{
		2558	key_value *
2727	key_value * field = NULL, *last=NULL;	2559	field = NULL, *last = NULL;
2728		2560
2729	for (field=op->key_values; field != NULL; field=field->next) {	2561	for (field = op->key_values; field != NULL; field = field->next)
2730	if (field->key != canonical_key) {
2731	last = field;
2732	continue;
2733	}
2734		2562	{
2735	if (field->value) FREE_AND_CLEAR_STR(field->value);	2563	if (field->key != canonical_key)
2736	if (value)	2564	{
2737	field->value = add_string(value);	2565	last = field;
2738	else {	2566	continue;
		2567	}
		2568
		2569	if (value)
		2570	field->value = value;
		2571	else
		2572	{
2739	/* Basically, if the archetype has this key set,	2573	/* Basically, if the archetype has this key set,
2740	* we need to store the null value so when we save	2574	* we need to store the null value so when we save
2741	* it, we save the empty value so that when we load,	2575	* it, we save the empty value so that when we load,
2742	* we get this value back again.	2576	* we get this value back again.
2743	*/	2577	*/
2744	if (get_ob_key_link(&op->arch->clone, canonical_key))	2578	if (get_ob_key_link (&op->arch->clone, canonical_key))
2745	field->value = NULL;	2579	field->value = 0;
2746	else {	2580	else
2747	/* Delete this link */	2581	{
2748	if (field->key) FREE_AND_CLEAR_STR(field->key);	2582	if (last)
2749	if (field->value) FREE_AND_CLEAR_STR(field->value);	2583	last->next = field->next;
2750	if (last) last->next = field->next;	2584	else
2751	else op->key_values = field->next;	2585	op->key_values = field->next;
2752	free(field);	2586
2753	}	2587	delete field;
2754	}	2588	}
		2589	}
2755	return TRUE;	2590	return TRUE;
2756	}	2591	}
2757	/* IF we get here, key doesn't exist */	2592	/* IF we get here, key doesn't exist */
2758		2593
2759	/* No field, we'll have to add it. */	2594	/* No field, we'll have to add it. */
		2595
		2596	if (!add_key)
2760		2597	{
2761	if (!add_key) {
2762	return FALSE;	2598	return FALSE;
2763	}	2599	}
2764	/* There isn't any good reason to store a null	2600	/* There isn't any good reason to store a null
2765	* value in the key/value list. If the archetype has	2601	* value in the key/value list. If the archetype has
2766	* this key, then we should also have it, so shouldn't	2602	* this key, then we should also have it, so shouldn't
2767	* be here. If user wants to store empty strings,	2603	* be here. If user wants to store empty strings,
2768	* should pass in ""	2604	* should pass in ""
2769	*/	2605	*/
2770	if (value == NULL) return TRUE;	2606	if (value == NULL)
2771
2772	field = (key_value *) malloc(sizeof(key_value));
2773
2774	field->key = add_refcount(canonical_key);
2775	field->value = add_string(value);
2776	/* Usual prepend-addition. */
2777	field->next = op->key_values;
2778	op->key_values = field;
2779
2780	return TRUE;	2607	return TRUE;
		2608
		2609	field = new key_value;
		2610
		2611	field->key = canonical_key;
		2612	field->value = value;
		2613	/* Usual prepend-addition. */
		2614	field->next = op->key_values;
		2615	op->key_values = field;
		2616
		2617	return TRUE;
2781	}	2618	}
2782		2619
2783	/*	2620	/*
2784	* Updates the key in op to value.	2621	* Updates the key in op to value.
2785	*	2622	*
…		…
2787	* and not add new ones.	2624	* and not add new ones.
2788	* In general, should be little reason FALSE is ever passed in for add_key	2625	* In general, should be little reason FALSE is ever passed in for add_key
2789	*	2626	*
2790	* Returns TRUE on success.	2627	* Returns TRUE on success.
2791	*/	2628	*/
		2629	int
2792	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2630	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2793	const char * canonical_key = NULL;	2631	{
2794	int floating_ref = FALSE;	2632	shstr key_ (key);
2795	int ret;	2633
		2634	return set_ob_key_value_s (op, key_, value, add_key);
		2635	}
		2636
		2637	object::depth_iterator::depth_iterator (object *container)
		2638	: iterator_base (container)
		2639	{
		2640	while (item->inv)
		2641	item = item->inv;
		2642	}
		2643
		2644	void
		2645	object::depth_iterator::next ()
		2646	{
		2647	if (item->below)
2796		2648	{
2797	/* HACK This mess is to make sure set_ob_value() passes a shared string	2649	item = item->below;
2798	* to get_ob_key_link(), without leaving a leaked refcount.	2650
2799	*/	2651	while (item->inv)
		2652	item = item->inv;
2800		2653	}
2801	canonical_key = find_string(key);	2654	else
2802	if (canonical_key == NULL) {	2655	item = item->env;
2803	canonical_key = add_string(key);
2804	floating_ref = TRUE;
2805	}
2806
2807	ret = set_ob_key_value_s(op, canonical_key, value, add_key);
2808
2809	if (floating_ref) {
2810	free_string(canonical_key);
2811	}
2812
2813	return ret;
2814	}	2656	}
		2657
		2658	// return a suitable string describing an objetc in enough detail to find it
		2659	const char *
		2660	object::debug_desc (char *info) const
		2661	{
		2662	char info2[256 * 3];
		2663	char *p = info;
		2664
		2665	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2666	count,
		2667	&name,
		2668	title ? " " : "",
		2669	title ? (const char *)title : "");
		2670
		2671	if (env)
		2672	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2673
		2674	if (map)
		2675	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2676
		2677	return info;
		2678	}
		2679
		2680	const char *
		2681	object::debug_desc () const
		2682	{
		2683	static char info[256 * 3];
		2684	return debug_desc (info);
		2685	}
		2686

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