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Comparing deliantra/server/common/object.C (file contents):
Revision 1.6 by root, Mon Aug 28 14:05:23 2006 UTC vs.
Revision 1.171 by root, Wed Aug 1 19:15:49 2007 UTC

1	/*	1	/*
2	* static char *rcsid_object_c =	2	* This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
3	* "$Id: object.C,v 1.6 2006/08/28 14:05:23 root Exp $";	3	*
4	*/	4	* Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
5
6	/*
7	CrossFire, A Multiplayer game for X-windows
8
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
11		7	*
12	This program is free software; you can redistribute it and/or modify	8	* Crossfire TRT is free software: you can redistribute it and/or modify
13	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
14	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
15	(at your option) any later version.	11	* (at your option) any later version.
16		12	*
17	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
18	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
19	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20	GNU General Public License for more details.	16	* GNU General Public License for more details.
21		17	*
22	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
25		21	* The authors can be reached via e-mail to <crossfire@schmorp.de>
26	The authors can be reached via e-mail at crossfire-devel@real-time.com
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>	33	#include <sproto.h>
41	#include <loader.h>	34	#include <loader.h>
42	#ifdef MEMORY_DEBUG	35
43	int nroffreeobjects = 0;	36	#include <bitset>
		37
44	int nrofallocobjects = 0;	38	int nrofallocobjects = 0;
45	#undef OBJ_EXPAND	39	static UUID uuid;
46	#define OBJ_EXPAND 1	40	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		41
53	object *objects; /* Pointer to the list of used objects */	42	objectvec objects;
54	object *free_objects; /* Pointer to the list of unused objects */	43	activevec actives;
55	object *active_objects; /* List of active objects that need to be processed */
56		44
57	short freearr_x[SIZEOFFREE]=	45	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
58	{0,0,1,1,1,0,-1,-1,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,-2,-2,-2,-1,
59	0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3,-3,-3,-3,-3,-2,-1};	46	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
60	short freearr_y[SIZEOFFREE]=	47	};
61	{0,-1,-1,0,1,1,1,0,-1,-2,-2,-2,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,	48	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
62	-3,-3,-3,-3,-2,-1,0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3};	49	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
63	int maxfree[SIZEOFFREE]=	50	};
64	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,	51	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
65	48,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49};	52	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
		53	};
66	int freedir[SIZEOFFREE]= {	54	int freedir[SIZEOFFREE] = {
67	0,1,2,3,4,5,6,7,8,1,2,2,2,3,4,4,4,5,6,6,6,7,8,8,8,	55	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
68	1,2,2,2,2,2,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,8};	56	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		57	};
69		58
		59	static void
		60	write_uuid (void)
		61	{
		62	char filename1[MAX_BUF], filename2[MAX_BUF];
		63
		64	sprintf (filename1, "%s/uuid", settings.localdir);
		65	sprintf (filename2, "%s/uuid~", settings.localdir);
		66
		67	FILE *fp;
		68
		69	if (!(fp = fopen (filename2, "w")))
		70	{
		71	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		72	return;
		73	}
		74
		75	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		76	fclose (fp);
		77	rename (filename2, filename1);
		78	}
		79
		80	static void
		81	read_uuid (void)
		82	{
		83	char filename[MAX_BUF];
		84
		85	sprintf (filename, "%s/uuid", settings.localdir);
		86
		87	FILE *fp;
		88
		89	if (!(fp = fopen (filename, "r")))
		90	{
		91	if (errno == ENOENT)
		92	{
		93	LOG (llevInfo, "RESET uid to 1\n");
		94	uuid.seq = 0;
		95	write_uuid ();
		96	return;
		97	}
		98
		99	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		100	_exit (1);
		101	}
		102
		103	int version;
		104	unsigned long long uid;
		105	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		106	{
		107	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		108	_exit (1);
		109	}
		110
		111	uuid.seq = uid;
		112	write_uuid ();
		113	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		114	fclose (fp);
		115	}
		116
		117	UUID
		118	gen_uuid ()
		119	{
		120	UUID uid;
		121
		122	uid.seq = ++uuid.seq;
		123
		124	if (!(uuid.seq & (UUID_SKIP - 1)))
		125	write_uuid ();
		126
		127	return uid;
		128	}
		129
		130	void
		131	init_uuid ()
		132	{
		133	read_uuid ();
		134	}
70		135
71	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	136	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		137	static int
72	static int compare_ob_value_lists_one(const object * wants, const object * has) {	138	compare_ob_value_lists_one (const object *wants, const object *has)
		139	{
73	key_value * wants_field;	140	key_value *wants_field;
74		141
75	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	142	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
76	* objects with lists are rare, and lists stay short. If not, use a	143	* objects with lists are rare, and lists stay short. If not, use a
77	* different structure or at least keep the lists sorted...	144	* different structure or at least keep the lists sorted...
78	*/	145	*/
79		146
80	/* For each field in wants, */	147	/* For each field in wants, */
81	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	148	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
		149	{
82	key_value * has_field;	150	key_value *has_field;
83		151
84	/* Look for a field in has with the same key. */	152	/* Look for a field in has with the same key. */
85	has_field = get_ob_key_link(has, wants_field->key);	153	has_field = get_ob_key_link (has, wants_field->key);
		154
		155	if (has_field == NULL)
86		156	{
87	if (has_field == NULL) {
88	/* No field with that name. */	157	/* No field with that name. */
89	return FALSE;	158	return FALSE;
90	}	159	}
91		160
92	/* Found the matching field. */	161	/* Found the matching field. */
93	if (has_field->value != wants_field->value) {	162	if (has_field->value != wants_field->value)
		163	{
94	/* Values don't match, so this half of the comparison is false. */	164	/* Values don't match, so this half of the comparison is false. */
95	return FALSE;	165	return FALSE;
96	}	166	}
97		167
98	/* If we get here, we found a match. Now for the next field in wants. */	168	/* If we get here, we found a match. Now for the next field in wants. */
99	}
100		169	}
		170
101	/* If we get here, every field in wants has a matching field in has. */	171	/* If we get here, every field in wants has a matching field in has. */
102	return TRUE;	172	return TRUE;
103	}	173	}
104		174
105	/* Returns TRUE if ob1 has the same key_values as ob2. */	175	/* Returns TRUE if ob1 has the same key_values as ob2. */
		176	static int
106	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	177	compare_ob_value_lists (const object *ob1, const object *ob2)
		178	{
107	/* However, there may be fields in has which aren't partnered in wants,	179	/* However, there may be fields in has which aren't partnered in wants,
108	* so we need to run the comparison *twice*. :(	180	* so we need to run the comparison *twice*. :(
109	*/	181	*/
110	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	182	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
111	}	183	}
112		184
113	/* Function examines the 2 objects given to it, and returns true if	185	/* Function examines the 2 objects given to it, and returns true if
114	* they can be merged together.	186	* they can be merged together.
115	*	187	*
116	* Note that this function appears a lot longer than the macro it	188	* Note that this function appears a lot longer than the macro it
117	* replaces - this is mostly for clarity - a decent compiler should hopefully	189	* replaces - this is mostly for clarity - a decent compiler should hopefully
118	* reduce this to the same efficiency.	190	* reduce this to the same efficiency.
119	*	191	*
120	* Check nrof variable *before* calling CAN_MERGE()	192	* Check nrof variable *before* calling can_merge()
121	*	193	*
122	* Improvements made with merge: Better checking on potion, and also	194	* Improvements made with merge: Better checking on potion, and also
123	* check weight	195	* check weight
124	*/	196	*/
125		197	bool object::can_merge_slow (object *ob1, object *ob2)
126	int CAN_MERGE(object *ob1, object *ob2) {	198	{
127
128	/* A couple quicksanity checks */	199	/* A couple quicksanity checks */
129	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	200	if (ob1 == ob2
130		201	|| ob1->type != ob2->type
131	if (ob1->speed != ob2->speed) return 0;	202	|| ob1->speed != ob2->speed
132	/* Note sure why the following is the case - either the object has to	203	|| ob1->value != ob2->value
133	* be animated or have a very low speed. Is this an attempted monster	204	|| ob1->name != ob2->name)
134	* check?
135	*/
136	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)
137	return 0;	205	return 0;
138		206
		207	//TODO: this ain't working well, use nicer and correct overflow check
139	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	208	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
140	* value could not be stored in a sint32 (which unfortunately sometimes is	209	* value could not be stored in a sint32 (which unfortunately sometimes is
141	* used to store nrof).	210	* used to store nrof).
142	*/	211	*/
143	if (ob1->nrof+ob2->nrof >= 1UL<<31)	212	if (ob1->nrof + ob2->nrof >= 1UL << 31)
144	return 0;	213	return 0;
145		214
146	/* This is really a spellbook check - really, we should
147	* check all objects in the inventory.
148	*/
149	if (ob1->inv || ob2->inv) {
150	/* if one object has inventory but the other doesn't, not equiv */
151	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) return 0;
152
153	/* Now check to see if the two inventory objects could merge */
154	if (!CAN_MERGE(ob1->inv, ob2->inv)) return 0;
155
156	/* inventory ok - still need to check rest of this object to see
157	* if it is valid.
158	*/
159	}
160
161	/* If the objects have been identified, set the BEEN_APPLIED flag.	215	/* If the objects have been identified, set the BEEN_APPLIED flag.
162	* This is to the comparison of the flags below will be OK. We	216	* This is to the comparison of the flags below will be OK. We
163	* just can't ignore the been applied or identified flags, as they	217	* just can't ignore the been applied or identified flags, as they
164	* are not equal - just if it has been identified, the been_applied	218	* are not equal - just if it has been identified, the been_applied
165	* flags lose any meaning.	219	* flags lose any meaning.
166	*/	220	*/
167	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))	221	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
168	SET_FLAG(ob1, FLAG_BEEN_APPLIED);	222	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
169		223
170	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))	224	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
171	SET_FLAG(ob2, FLAG_BEEN_APPLIED);	225	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
172		226
173		227	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
174	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	228	|| ob1->arch != ob2->arch
175	* being locked in inventory should prevent merging.	229	|| ob1->name != ob2->name
176	* 0x4 in flags3 is CLIENT_SENT	230	|| ob1->title != ob2->title
177	*/	231	|| ob1->msg != ob2->msg
178	if ((ob1->arch != ob2->arch) ||	232	|| ob1->weight != ob2->weight
179	(ob1->flags[0] != ob2->flags[0]) ||
180	(ob1->flags[1] != ob2->flags[1]) ||
181	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||
182	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
183	(ob1->name != ob2->name) ||
184	(ob1->title != ob2->title) ||
185	(ob1->msg != ob2->msg) ||
186	(ob1->weight != ob2->weight) ||
187	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||	233	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
188	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||	234	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
189	(ob1->attacktype != ob2->attacktype) ||	235	|| ob1->attacktype != ob2->attacktype
190	(ob1->magic != ob2->magic) ||	236	|| ob1->magic != ob2->magic
191	(ob1->slaying != ob2->slaying) ||	237	|| ob1->slaying != ob2->slaying
192	(ob1->skill != ob2->skill) ||	238	|| ob1->skill != ob2->skill
193	(ob1->value != ob2->value) ||	239	|| ob1->value != ob2->value
194	(ob1->animation_id != ob2->animation_id) ||	240	|| ob1->animation_id != ob2->animation_id
195	(ob1->client_type != ob2->client_type) ||	241	|| ob1->client_type != ob2->client_type
196	(ob1->materialname != ob2->materialname) ||	242	|| ob1->materialname != ob2->materialname
197	(ob1->lore != ob2->lore) ||	243	|| ob1->lore != ob2->lore
198	(ob1->subtype != ob2->subtype) ||	244	|| ob1->subtype != ob2->subtype
199	(ob1->move_type != ob2->move_type) ||	245	|| ob1->move_type != ob2->move_type
200	(ob1->move_block != ob2->move_block) ||	246	|| ob1->move_block != ob2->move_block
201	(ob1->move_allow != ob2->move_allow) ||	247	|| ob1->move_allow != ob2->move_allow
202	(ob1->move_on != ob2->move_on) ||	248	|| ob1->move_on != ob2->move_on
203	(ob1->move_off != ob2->move_off) ||	249	|| ob1->move_off != ob2->move_off
204	(ob1->move_slow != ob2->move_slow) ||	250	|| ob1->move_slow != ob2->move_slow
205	(ob1->move_slow_penalty != ob2->move_slow_penalty)	251	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
206	)
207	return 0;	252	return 0;
208		253
		254	/* This is really a spellbook check - really, we should
		255	* check all objects in the inventory.
		256	*/
		257	if (ob1->inv || ob2->inv)
		258	{
		259	/* if one object has inventory but the other doesn't, not equiv */
		260	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
		261	return 0;
		262
		263	/* Now check to see if the two inventory objects could merge */
		264	if (!object::can_merge (ob1->inv, ob2->inv))
		265	return 0;
		266
		267	/* inventory ok - still need to check rest of this object to see
		268	* if it is valid.
		269	*/
		270	}
		271
209	/* Don't merge objects that are applied. With the new 'body' code,	272	/* Don't merge objects that are applied. With the new 'body' code,
210	* it is possible for most any character to have more than one of	273	* it is possible for most any character to have more than one of
211	* some items equipped, and we don't want those to merge.	274	* some items equipped, and we don't want those to merge.
212	*/	275	*/
213	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	276	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
214	return 0;	277	return 0;
215		278
		279	/* Note sure why the following is the case - either the object has to
		280	* be animated or have a very low speed. Is this an attempted monster
		281	* check?
		282	*/
		283	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
		284	return 0;
		285
216	switch (ob1->type) {	286	switch (ob1->type)
		287	{
217	case SCROLL:	288	case SCROLL:
218	if (ob1->level != ob2->level) return 0;	289	if (ob1->level != ob2->level)
		290	return 0;
219	break;	291	break;
220
221	}	292	}
		293
222	if (ob1->key_values != NULL || ob2->key_values != NULL) {	294	if (ob1->key_values != NULL || ob2->key_values != NULL)
		295	{
223	/* At least one of these has key_values. */	296	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {	297	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
225	/* One has fields, but the other one doesn't. */	298	/* One has fields, but the other one doesn't. */
		299	return 0;
		300	else if (!compare_ob_value_lists (ob1, ob2))
		301	return 0;
		302	}
		303
		304	if (ob1->self || ob2->self)
		305	{
		306	ob1->optimise ();
		307	ob2->optimise ();
		308
		309	if (ob1->self || ob2->self)
		310	if (!cfperl_can_merge (ob1, ob2))
226	return 0;	311	return 0;
227	} else if (!compare_ob_value_lists(ob1, ob2)) {
228	return 0;
229	}
230	}	312	}
231		313
232	/* Everything passes, must be OK. */	314	/* Everything passes, must be OK. */
233	return 1;	315	return 1;
234	}	316	}
235		317
236	/*	318	/*
237	* sum_weight() is a recursive function which calculates the weight	319	* sum_weight() is a recursive function which calculates the weight
238	* an object is carrying. It goes through in figures out how much	320	* an object is carrying. It goes through in figures out how much
239	* containers are carrying, and sums it up.	321	* containers are carrying, and sums it up.
240	*/	322	*/
241	signed long sum_weight(object *op) {	323	long
		324	sum_weight (object *op)
		325	{
242	signed long sum;	326	long sum;
243	object *inv;	327	object *inv;
		328
244	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	329	for (sum = 0, inv = op->inv; inv; inv = inv->below)
		330	{
245	if (inv->inv)	331	if (inv->inv)
246	sum_weight(inv);	332	sum_weight (inv);
		333
247	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	334	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
248	}	335	}
		336
249	if (op->type == CONTAINER && op->stats.Str)	337	if (op->type == CONTAINER && op->stats.Str)
250	sum = (sum * (100 - op->stats.Str))/100;	338	sum = (sum * (100 - op->stats.Str)) / 100;
		339
251	if(op->carrying != sum)	340	if (op->carrying != sum)
252	op->carrying = sum;	341	op->carrying = sum;
		342
253	return sum;	343	return sum;
254	}	344	}
255		345
256	/**	346	/**
257	* Return the outermost environment object for a given object.	347	* Return the outermost environment object for a given object.
258	*/	348	*/
259		349
		350	object *
260	object *object_get_env_recursive (object *op) {	351	object_get_env_recursive (object *op)
		352	{
261	while (op->env != NULL)	353	while (op->env != NULL)
262	op = op->env;	354	op = op->env;
263	return op;	355	return op;
264	}
265
266	/*
267	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
268	* a better check. We basically keeping traversing up until we can't
269	* or find a player.
270	*/
271
272	object *is_player_inv (object *op) {
273	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
274	if (op->env==op)
275	op->env = NULL;
276	return op;
277	}	356	}
278		357
279	/*	358	/*
280	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	359	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
281	* Some error messages.	360	* Some error messages.
282	* The result of the dump is stored in the static global errmsg array.	361	* The result of the dump is stored in the static global errmsg array.
283	*/	362	*/
284		363	char *
285	void dump_object2(object *op) {
286	char *cp;
287	/* object *tmp;*/
288
289	if(op->arch!=NULL) {
290	strcat(errmsg,"arch ");
291	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
292	strcat(errmsg,"\n");
293	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
294	strcat(errmsg,cp);
295	#if 0
296	/* Don't dump player diffs - they are too long, mostly meaningless, and
297	* will overflow the buffer.
298	* Changed so that we don't dump inventory either. This may
299	* also overflow the buffer.
300	*/
301	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
302	strcat(errmsg,cp);
303	for (tmp=op->inv; tmp; tmp=tmp->below)
304	dump_object2(tmp);
305	#endif
306	strcat(errmsg,"end\n");
307	} else {
308	strcat(errmsg,"Object ");
309	if (op->name==NULL) strcat(errmsg, "(null)");
310	else strcat(errmsg,op->name);
311	strcat(errmsg,"\n");
312	#if 0
313	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
314	strcat(errmsg,cp);
315	for (tmp=op->inv; tmp; tmp=tmp->below)
316	dump_object2(tmp);
317	#endif
318	strcat(errmsg,"end\n");
319	}
320	}
321
322	/*
323	* Dumps an object. Returns output in the static global errmsg array.
324	*/
325
326	void dump_object(object *op) {	364	dump_object (object *op)
327	if(op==NULL) {
328	strcpy(errmsg,"[NULL pointer]");
329	return;
330	}
331	errmsg[0]='\0';
332	dump_object2(op);
333	}
334
335	/* GROS - Dumps an object. Return the result into a string */
336	/* Note that no checking is done for the validity of the target string, so */
337	/* you need to be sure that you allocated enough space for it. */
338	void dump_me(object *op, char *outstr)
339	{	365	{
340	char *cp;	366	if (!op)
		367	return strdup ("[NULLOBJ]");
341		368
342	if(op==NULL)	369	object_freezer freezer;
343	{	370	op->write (freezer);
344	strcpy(outstr,"[NULL pointer]");	371	return freezer.as_string ();
345	return;
346	}
347	outstr[0]='\0';
348
349	if(op->arch!=NULL)
350	{
351	strcat(outstr,"arch ");
352	strcat(outstr,op->arch->name?op->arch->name:"(null)");
353	strcat(outstr,"\n");
354	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
355	strcat(outstr,cp);
356	strcat(outstr,"end\n");
357	}
358	else
359	{
360	strcat(outstr,"Object ");
361	if (op->name==NULL)
362	strcat(outstr, "(null)");
363	else
364	strcat(outstr,op->name);
365	strcat(outstr,"\n");
366	strcat(outstr,"end\n");
367	}
368	}
369
370	/*
371	* This is really verbose...Can be triggered by the P key while in DM mode.
372	* All objects are dumped to stderr (or alternate logfile, if in server-mode)
373	*/
374
375	void dump_all_objects(void) {
376	object *op;
377	for(op=objects;op!=NULL;op=op->next) {
378	dump_object(op);
379	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
380	}
381	}	372	}
382		373
383	/*	374	/*
384	* get_nearest_part(multi-object, object 2) returns the part of the	375	* get_nearest_part(multi-object, object 2) returns the part of the
385	* multi-object 1 which is closest to the second object.	376	* multi-object 1 which is closest to the second object.
386	* If it's not a multi-object, it is returned.	377	* If it's not a multi-object, it is returned.
387	*/	378	*/
388		379
		380	object *
389	object *get_nearest_part(object *op, const object *pl) {	381	get_nearest_part (object *op, const object *pl)
		382	{
390	object *tmp,*closest;	383	object *tmp, *closest;
391	int last_dist,i;	384	int last_dist, i;
		385
392	if(op->more==NULL)	386	if (op->more == NULL)
393	return op;	387	return op;
394	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	388	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
395	if((i=distance(tmp,pl))<last_dist)	389	if ((i = distance (tmp, pl)) < last_dist)
396	closest=tmp,last_dist=i;	390	closest = tmp, last_dist = i;
397	return closest;	391	return closest;
398	}	392	}
399		393
400	/*	394	/*
401	* Returns the object which has the count-variable equal to the argument.	395	* Returns the object which has the count-variable equal to the argument.
402	*/	396	*/
403		397	object *
404	object *find_object(tag_t i) {	398	find_object (tag_t i)
405	object *op;	399	{
406	for(op=objects;op!=NULL;op=op->next)	400	for_all_objects (op)
407	if(op->count==i)	401	if (op->count == i)
408	break;
409	return op;	402	return op;
		403
		404	return 0;
410	}	405	}
411		406
412	/*	407	/*
413	* Returns the first object which has a name equal to the argument.	408	* Returns the first object which has a name equal to the argument.
414	* Used only by the patch command, but not all that useful.	409	* Used only by the patch command, but not all that useful.
415	* Enables features like "patch <name-of-other-player> food 999"	410	* Enables features like "patch <name-of-other-player> food 999"
416	*/	411	*/
417		412	object *
418	object *find_object_name(const char *str) {	413	find_object_name (const char *str)
419	const char *name=add_string(str);	414	{
		415	shstr_cmp str_ (str);
420	object *op;	416	object *op;
421	for(op=objects;op!=NULL;op=op->next)	417
		418	for_all_objects (op)
422	if(op->name==name)	419	if (op->name == str_)
423	break;	420	break;
424	free_string(name);	421
425	return op;	422	return op;
426	}	423	}
427		424
		425	void
428	void free_all_object_data(void) {	426	free_all_object_data ()
429	#ifdef MEMORY_DEBUG
430	object *op, *next;
431
432	for (op=free_objects; op!=NULL; ) {
433	next=op->next;
434	free(op);
435	nrofallocobjects--;
436	nroffreeobjects--;
437	op=next;
438	}
439	#endif
440	LOG(llevDebug,"%d allocated objects, %d free objects, STARMAX=%d\n",
441	nrofallocobjects, nroffreeobjects,STARTMAX);
442	}
443
444	/*
445	* Returns the object which this object marks as being the owner.
446	* A id-scheme is used to avoid pointing to objects which have been
447	* freed and are now reused. If this is detected, the owner is
448	* set to NULL, and NULL is returned.
449	* Changed 2004-02-12 - if the player is setting at the play again
450	* prompt, he is removed, and we don't want to treat him as an owner of
451	* anything, so check removed flag. I don't expect that this should break
452	* anything - once an object is removed, it is basically dead anyways.
453	*/
454
455	object *get_owner(object *op) {
456	if(op->owner==NULL)
457	return NULL;
458
459	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
460	op->owner->count==op->ownercount)
461	return op->owner;
462
463	op->owner=NULL;
464	op->ownercount=0;
465	return NULL;
466	}
467
468	void clear_owner(object *op)
469	{	427	{
470	if (!op) return;	428	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
471
472	if (op->owner && op->ownercount == op->owner->count)
473	op->owner->refcount--;
474
475	op->owner = NULL;
476	op->ownercount = 0;
477	}	429	}
478
479
480		430
481	/*	431	/*
482	* Sets the owner and sets the skill and exp pointers to owner's current	432	* Sets the owner and sets the skill and exp pointers to owner's current
483	* skill and experience objects.	433	* skill and experience objects.
484	*/	434	*/
485	void set_owner (object *op, object *owner)	435	void
		436	object::set_owner (object *owner)
486	{	437	{
487	if(owner==NULL||op==NULL)	438	if (!owner)
488	return;	439	return;
489		440
490	/* next line added to allow objects which own objects */	441	/* next line added to allow objects which own objects */
491	/* Add a check for ownercounts in here, as I got into an endless loop	442	/* Add a check for ownercounts in here, as I got into an endless loop
492	* with the fireball owning a poison cloud which then owned the	443	* with the fireball owning a poison cloud which then owned the
493	* fireball. I believe that was caused by one of the objects getting	444	* fireball. I believe that was caused by one of the objects getting
494	* freed and then another object replacing it. Since the ownercounts	445	* freed and then another object replacing it. Since the ownercounts
495	* didn't match, this check is valid and I believe that cause is valid.	446	* didn't match, this check is valid and I believe that cause is valid.
496	*/	447	*/
497	while (owner->owner && owner!=owner->owner &&	448	while (owner->owner)
498	owner->ownercount==owner->owner->count) owner=owner->owner;	449	owner = owner->owner;
499		450
500	/* IF the owner still has an owner, we did not resolve to a final owner.
501	* so lets not add to that.
502	*/
503	if (owner->owner) return;
504
505	op->owner=owner;	451	this->owner = owner;
506
507	op->ownercount=owner->count;
508	owner->refcount++;
509
510	}	452	}
511		453
512	/* Set the owner to clone's current owner and set the skill and experience	454	int
513	* objects to clone's objects (typically those objects that where the owner's	455	object::slottype () const
514	* current skill and experience objects at the time when clone's owner was
515	* set - not the owner's current skill and experience objects).
516	*
517	* Use this function if player created an object (e.g. fire bullet, swarm
518	* spell), and this object creates further objects whose kills should be
519	* accounted for the player's original skill, even if player has changed
520	* skills meanwhile.
521	*/
522	void copy_owner (object *op, object *clone)
523	{	456	{
524	object *owner = get_owner (clone);	457	if (type == SKILL)
525	if (owner == NULL) {
526	/* players don't have owners - they own themselves. Update
527	* as appropriate.
528	*/
529	if (clone->type == PLAYER) owner=clone;
530	else return;
531	}	458	{
532	set_owner(op, owner);	459	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
533		460	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		461	}
		462	else
		463	{
		464	if (slot [body_combat].info) return slot_combat;
		465	if (slot [body_range ].info) return slot_ranged;
		466	}
		467
		468	return slot_none;
534	}	469	}
535		470
536	/*	471	bool
537	* Resets vital variables in an object	472	object::change_weapon (object *ob)
538	*/	473	{
		474	if (current_weapon == ob)
		475	return true;
539		476
540	void reset_object(object *op) {	477	if (chosen_skill)
		478	chosen_skill->flag [FLAG_APPLIED] = false;
541		479
542	op->name = NULL;	480	current_weapon = ob;
543	op->name_pl = NULL;	481	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
544	op->title = NULL;	482
545	op->race = NULL;	483	if (chosen_skill)
546	op->slaying = NULL;	484	chosen_skill->flag [FLAG_APPLIED] = true;
547	op->skill = NULL;	485
548	op->msg = NULL;	486	update_stats ();
549	op->materialname = NULL;	487
550	op->lore = NULL;	488	if (ob)
551	op->current_weapon_script = NULL;	489	{
552	clear_object(op);	490	// now check wether any body locations became invalid, in which case
		491	// we cannot apply the weapon at the moment.
		492	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		493	if (slot[i].used < 0)
		494	{
		495	current_weapon = chosen_skill = 0;
		496	update_stats ();
		497
		498	new_draw_info_format (NDI_UNIQUE, 0, this,
		499	"You try to balance all your items at once, "
		500	"but the %s is just too much for your body. "
		501	"[You need to unapply some items first.]", &ob->name);
		502	return false;
		503	}
		504
		505	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		506	}
		507	else
		508	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		509
		510	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		511	{
		512	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		513	&name, ob->debug_desc ());
		514	return false;
		515	}
		516
		517	return true;
553	}	518	}
554		519
555	/* Zero the key_values on op, decrementing the shared-string	520	/* Zero the key_values on op, decrementing the shared-string
556	* refcounts and freeing the links.	521	* refcounts and freeing the links.
557	*/	522	*/
		523	static void
558	static void free_key_values(object * op) {	524	free_key_values (object *op)
559	key_value * i;	525	{
560	key_value * next = NULL;	526	for (key_value *i = op->key_values; i; )
561		527	{
562	if (op->key_values == NULL) return;	528	key_value *next = i->next;
		529	delete i;
		530
		531	i = next;
563		532	}
564	for (i = op->key_values; i != NULL; i = next) {	533
565	/* Store next *first*. */	534	op->key_values = 0;
566	next = i->next;	535	}
		536
		537	object &
		538	object::operator =(const object &src)
		539	{
		540	bool is_freed = flag [FLAG_FREED];
		541	bool is_removed = flag [FLAG_REMOVED];
		542
		543	*(object_copy *)this = src;
		544
		545	flag [FLAG_FREED] = is_freed;
		546	flag [FLAG_REMOVED] = is_removed;
		547
		548	/* Copy over key_values, if any. */
		549	if (src.key_values)
		550	{
		551	key_value *tail = 0;
		552	key_values = 0;
		553
		554	for (key_value *i = src.key_values; i; i = i->next)
567		555	{
568	if (i->key) FREE_AND_CLEAR_STR(i->key);	556	key_value *new_link = new key_value;
569	if (i->value) FREE_AND_CLEAR_STR(i->value);	557
570	i->next = NULL;	558	new_link->next = 0;
571	free(i);	559	new_link->key = i->key;
572	}	560	new_link->value = i->value;
		561
		562	/* Try and be clever here, too. */
		563	if (!key_values)
		564	{
		565	key_values = new_link;
		566	tail = new_link;
		567	}
		568	else
		569	{
		570	tail->next = new_link;
		571	tail = new_link;
		572	}
		573	}
573		574	}
574	op->key_values = NULL;
575	}	575	}
576		576
577
578	/*	577	/*
579	* clear_object() frees everything allocated by an object, and also
580	* clears all variables and flags to default settings.
581	*/
582
583	void clear_object(object *op) {
584	op->clear ();
585
586	event *evt;
587	event *evt2;
588
589	/* redo this to be simpler/more efficient. Was also seeing
590	* crashes in the old code. Move this to the top - am
591	* seeing periodic crashes in this code, and would like to have
592	* as much info available as possible (eg, object name).
593	*/
594	for (evt = op->events; evt; evt=evt2) {
595	evt2 = evt->next;
596
597	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
598	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
599	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
600
601	free(evt);
602	}
603	op->events = NULL;
604
605	free_key_values(op);
606
607	/* the memset will clear all these values for us, but we need
608	* to reduce the refcount on them.
609	*/
610	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);
611	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);
612	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);
613	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);
614	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);
615	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);
616	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);
617	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);
618	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);
619
620
621	memset((void*)op, 0, sizeof (object_special));
622	/* Below here, we clear things that are not done by the memset,
623	* or set default values that are not zero.
624	*/
625	/* This is more or less true */
626	SET_FLAG(op, FLAG_REMOVED);
627
628
629	op->contr = NULL;
630	op->below=NULL;
631	op->above=NULL;
632	op->inv=NULL;
633	op->events=NULL;
634	op->container=NULL;
635	op->env=NULL;
636	op->more=NULL;
637	op->head=NULL;
638	op->map=NULL;
639	op->refcount=0;
640	op->active_next = NULL;
641	op->active_prev = NULL;
642	/* What is not cleared is next, prev, and count */
643
644	op->expmul=1.0;
645	op->face = blank_face;
646	op->attacked_by_count = (tag_t) -1;
647	if (settings.casting_time)
648	op->casting_time = -1;
649
650	}
651
652	/*
653	* copy object first frees everything allocated by the second object,	578	* copy_to first frees everything allocated by the dst object,
654	* and then copies the contends of the first object into the second	579	* and then copies the contents of itself into the second
655	* object, allocating what needs to be allocated. Basically, any	580	* object, allocating what needs to be allocated. Basically, any
656	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	581	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
657	* if the first object is freed, the pointers in the new object	582	* if the first object is freed, the pointers in the new object
658	* will point at garbage.	583	* will point at garbage.
659	*/	584	*/
		585	void
		586	object::copy_to (object *dst)
		587	{
		588	*dst = *this;
660		589
661	void copy_object(object *op2, object *op) {	590	if (speed < 0)
662	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);	591	dst->speed_left = speed_left - rndm ();
663	event *evt, *evt2, *evt_new;
664		592
665	op->clear ();	593	dst->set_speed (dst->speed);
666
667	/* Decrement the refcounts, but don't bother zeroing the fields;
668	they'll be overwritten by memcpy. */
669	if(op->name!=NULL) free_string(op->name);
670	if(op->name_pl!=NULL) free_string(op->name_pl);
671	if(op->title!=NULL) free_string(op->title);
672	if(op->race!=NULL) free_string(op->race);
673	if(op->slaying!=NULL) free_string(op->slaying);
674	if(op->skill!=NULL) free_string(op->skill);
675	if(op->msg!=NULL) free_string(op->msg);
676	if(op->lore!=NULL) free_string(op->lore);
677	if(op->materialname != NULL) free_string(op->materialname);
678	if(op->custom_name != NULL) free_string(op->custom_name);
679
680	/* Basically, same code as from clear_object() */
681	for (evt = op->events; evt; evt=evt2) {
682	evt2 = evt->next;
683
684	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
685	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
686	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
687
688	free(evt);
689	}
690	op->events = NULL;
691
692	free_key_values(op);
693
694	*(object_special *)op = *(object_special *)op2;
695	op2->clone (op);
696
697	if(is_freed) SET_FLAG(op,FLAG_FREED);
698	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
699	if(op->name!=NULL) add_refcount(op->name);
700	if(op->name_pl!=NULL) add_refcount(op->name_pl);
701	if(op->title!=NULL) add_refcount(op->title);
702	if(op->race!=NULL) add_refcount(op->race);
703	if(op->slaying!=NULL) add_refcount(op->slaying);
704	if(op->skill!=NULL) add_refcount(op->skill);
705	if(op->lore!=NULL) add_refcount(op->lore);
706	if(op->msg!=NULL) add_refcount(op->msg);
707	if(op->custom_name!=NULL) add_refcount(op->custom_name);
708	if (op->materialname != NULL) add_refcount(op->materialname);
709
710	if((op2->speed<0) && !editor)
711	op->speed_left=op2->speed_left-RANDOM()%200/100.0;
712
713	/* Copy over event information */
714	evt2 = NULL;
715	for (evt = op2->events; evt; evt=evt->next) {
716	evt_new = (event *) malloc(sizeof(event));
717	memcpy(evt_new, evt, sizeof(event));
718	if (evt_new->hook) add_refcount(evt_new->hook);
719	if (evt_new->plugin) add_refcount(evt_new->plugin);
720	if (evt_new->options) add_refcount(evt_new->options);
721	evt_new->next = NULL;
722
723	/* Try to be a little clever here, and store away the
724	* last event we copied, so that its simpler to update the
725	* pointer.
726	*/
727	if (evt2)
728	evt2->next = evt_new;
729	else
730	op->events = evt_new;
731
732	evt2 = evt_new;
733	}
734	/* Copy over key_values, if any. */
735	if (op2->key_values != NULL) {
736	key_value * tail = NULL;
737	key_value * i;
738
739	op->key_values = NULL;
740
741	for (i = op2->key_values; i != NULL; i = i->next) {
742	key_value * new_link = (key_value *) malloc(sizeof(key_value));
743
744	new_link->next = NULL;
745	new_link->key = add_refcount(i->key);
746	if (i->value)
747	new_link->value = add_refcount(i->value);
748	else
749	new_link->value = NULL;
750
751	/* Try and be clever here, too. */
752	if (op->key_values == NULL) {
753	op->key_values = new_link;
754	tail = new_link;
755	} else {
756	tail->next = new_link;
757	tail = new_link;
758	}
759	}
760	}
761
762	update_ob_speed(op);
763	}	594	}
764		595
765	/*	596	void
766	* expand_objects() allocates more objects for the list of unused objects.	597	object::instantiate ()
767	* It is called from get_object() if the unused list is empty.	598	{
768	*/	599	if (!uuid.seq) // HACK
		600	uuid = gen_uuid ();
769		601
770	void expand_objects(void) {	602	speed_left = -0.1f;
771	int i;	603	/* copy the body_info to the body_used - this is only really
772	object *obj;	604	* need for monsters, but doesn't hurt to do it for everything.
773	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));	605	* by doing so, when a monster is created, it has good starting
774		606	* values for the body_used info, so when items are created
775	if(obj==NULL)	607	* for it, they can be properly equipped.
776	fatal(OUT_OF_MEMORY);
777	free_objects=obj;
778	obj[0].prev=NULL;
779	obj[0].next= &obj[1],
780	SET_FLAG(&(obj[0]), FLAG_REMOVED);
781	SET_FLAG(&(obj[0]), FLAG_FREED);
782
783	for(i=1;i<OBJ_EXPAND-1;i++) {
784	obj[i].next= &obj[i+1],
785	obj[i].prev= &obj[i-1],
786	SET_FLAG(&(obj[i]), FLAG_REMOVED);
787	SET_FLAG(&(obj[i]), FLAG_FREED);
788	}
789	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
790	obj[OBJ_EXPAND-1].next=NULL,
791	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
792	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
793
794	nrofallocobjects += OBJ_EXPAND;
795	nroffreeobjects += OBJ_EXPAND;
796	}
797
798	/*
799	* get_object() grabs an object from the list of unused objects, makes
800	* sure it is initialised, and returns it.
801	* If there are no free objects, expand_objects() is called to get more.
802	*/
803
804	object *get_object(void) {
805	object *op;
806
807	if(free_objects==NULL) {
808	expand_objects();
809	}
810	op=free_objects;
811	#ifdef MEMORY_DEBUG
812	/* The idea is hopefully by doing a realloc, the memory
813	* debugging program will now use the current stack trace to
814	* report leaks.
815	*/	608	*/
816	op = realloc(op, sizeof(object));	609	for (int i = NUM_BODY_LOCATIONS; i--; )
817	SET_FLAG(op, FLAG_REMOVED);	610	slot[i].used = slot[i].info;
818	SET_FLAG(op, FLAG_FREED);
819	#endif
820		611
821	if(!QUERY_FLAG(op,FLAG_FREED)) {	612	attachable::instantiate ();
822	LOG(llevError,"Fatal: Getting busy object.\n");	613	}
823	}	614
824	free_objects=op->next;	615	object *
825	if(free_objects!=NULL)	616	object::clone ()
826	free_objects->prev=NULL;	617	{
827	op->count= ++ob_count;	618	object *neu = create ();
828	op->name=NULL;	619	copy_to (neu);
829	op->name_pl=NULL;
830	op->title=NULL;
831	op->race=NULL;
832	op->slaying=NULL;
833	op->skill = NULL;
834	op->lore=NULL;
835	op->msg=NULL;
836	op->materialname=NULL;
837	op->next=objects;
838	op->prev=NULL;
839	op->active_next = NULL;
840	op->active_prev = NULL;
841	if(objects!=NULL)
842	objects->prev=op;
843	objects=op;
844	clear_object(op);
845	SET_FLAG(op,FLAG_REMOVED);
846	nroffreeobjects--;
847	return op;	620	return neu;
848	}	621	}
849		622
850	/*	623	/*
851	* If an object with the IS_TURNABLE() flag needs to be turned due	624	* If an object with the IS_TURNABLE() flag needs to be turned due
852	* to the closest player being on the other side, this function can	625	* to the closest player being on the other side, this function can
853	* be called to update the face variable, _and_ how it looks on the map.	626	* be called to update the face variable, _and_ how it looks on the map.
854	*/	627	*/
855		628	void
856	void update_turn_face(object *op) {	629	update_turn_face (object *op)
		630	{
857	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	631	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
858	return;	632	return;
		633
859	SET_ANIMATION(op, op->direction);	634	SET_ANIMATION (op, op->direction);
860	update_object(op,UP_OBJ_FACE);	635	update_object (op, UP_OBJ_FACE);
861	}	636	}
862		637
863	/*	638	/*
864	* Updates the speed of an object. If the speed changes from 0 to another	639	* Updates the speed of an object. If the speed changes from 0 to another
865	* value, or vice versa, then add/remove the object from the active list.	640	* value, or vice versa, then add/remove the object from the active list.
866	* This function needs to be called whenever the speed of an object changes.	641	* This function needs to be called whenever the speed of an object changes.
867	*/	642	*/
868		643	void
869	void update_ob_speed(object *op) {	644	object::set_speed (float speed)
870	extern int arch_init;	645	{
871		646	if (flag [FLAG_FREED] && speed)
872	/* No reason putting the archetypes objects on the speed list,	647	{
873	* since they never really need to be updated.
874	*/
875
876	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {
877	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	648	LOG (llevError, "Object %s is freed but has speed.\n", &name);
878	#ifdef MANY_CORES	649	speed = 0;
879	abort();
880	#else
881	op->speed = 0;
882	#endif
883	}	650	}
884	if (arch_init) {
885	return;
886	}
887	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
888	/* If already on active list, don't do anything */
889	if (op->active_next || op->active_prev || op==active_objects)
890	return;
891		651
892	/* process_events() expects us to insert the object at the beginning	652	this->speed = speed;
893	* of the list. */	653
894	op->active_next = active_objects;	654	if (has_active_speed ())
895	if (op->active_next!=NULL)	655	activate ();
896	op->active_next->active_prev = op;
897	active_objects = op;
898	}
899	else {	656	else
900	/* If not on the active list, nothing needs to be done */	657	deactivate ();
901	if (!op->active_next && !op->active_prev && op!=active_objects)
902	return;
903
904	if (op->active_prev==NULL) {
905	active_objects = op->active_next;
906	if (op->active_next!=NULL)
907	op->active_next->active_prev = NULL;
908	}
909	else {
910	op->active_prev->active_next = op->active_next;
911	if (op->active_next)
912	op->active_next->active_prev = op->active_prev;
913	}
914	op->active_next = NULL;
915	op->active_prev = NULL;
916	}
917	}	658	}
918		659
919	/* This function removes object 'op' from the list of active
920	* objects.
921	* This should only be used for style maps or other such
922	* reference maps where you don't want an object that isn't
923	* in play chewing up cpu time getting processed.
924	* The reverse of this is to call update_ob_speed, which
925	* will do the right thing based on the speed of the object.
926	*/
927	void remove_from_active_list(object *op)
928	{
929	/* If not on the active list, nothing needs to be done */
930	if (!op->active_next && !op->active_prev && op!=active_objects)
931	return;
932
933	if (op->active_prev==NULL) {
934	active_objects = op->active_next;
935	if (op->active_next!=NULL)
936	op->active_next->active_prev = NULL;
937	}
938	else {
939	op->active_prev->active_next = op->active_next;
940	if (op->active_next)
941	op->active_next->active_prev = op->active_prev;
942	}
943	op->active_next = NULL;
944	op->active_prev = NULL;
945	}
946
947	/*	660	/*
948	* update_object() updates the array which represents the map.	661	* update_object() updates the the map.
949	* It takes into account invisible objects (and represent squares covered	662	* It takes into account invisible objects (and represent squares covered
950	* by invisible objects by whatever is below them (unless it's another	663	* by invisible objects by whatever is below them (unless it's another
951	* invisible object, etc...)	664	* invisible object, etc...)
952	* If the object being updated is beneath a player, the look-window	665	* If the object being updated is beneath a player, the look-window
953	* of that player is updated (this might be a suboptimal way of	666	* of that player is updated (this might be a suboptimal way of
954	* updating that window, though, since update_object() is called _often_)	667	* updating that window, though, since update_object() is called _often_)
955	*	668	*
956	* action is a hint of what the caller believes need to be done.	669	* action is a hint of what the caller believes need to be done.
957	* For example, if the only thing that has changed is the face (due to
958	* an animation), we don't need to call update_position until that actually
959	* comes into view of a player. OTOH, many other things, like addition/removal
960	* of walls or living creatures may need us to update the flags now.
961	* current action are:	670	* current action are:
962	* UP_OBJ_INSERT: op was inserted	671	* UP_OBJ_INSERT: op was inserted
963	* UP_OBJ_REMOVE: op was removed	672	* UP_OBJ_REMOVE: op was removed
964	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	673	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
965	* as that is easier than trying to look at what may have changed.	674	* as that is easier than trying to look at what may have changed.
966	* UP_OBJ_FACE: only the objects face has changed.	675	* UP_OBJ_FACE: only the objects face has changed.
967	*/	676	*/
968		677	void
969	void update_object(object *op, int action) {	678	update_object (object *op, int action)
970	int update_now=0, flags;	679	{
971	MoveType move_on, move_off, move_block, move_slow;
972
973	if (op == NULL) {	680	if (op == NULL)
		681	{
974	/* this should never happen */	682	/* this should never happen */
975	LOG(llevDebug,"update_object() called for NULL object.\n");	683	LOG (llevDebug, "update_object() called for NULL object.\n");
976	return;	684	return;
977	}
978		685	}
979	if(op->env!=NULL) {	686
		687	if (op->env)
		688	{
980	/* Animation is currently handled by client, so nothing	689	/* Animation is currently handled by client, so nothing
981	* to do in this case.	690	* to do in this case.
982	*/	691	*/
983	return;	692	return;
984	}	693	}
985		694
986	/* If the map is saving, don't do anything as everything is	695	/* If the map is saving, don't do anything as everything is
987	* going to get freed anyways.	696	* going to get freed anyways.
988	*/	697	*/
989	if (!op->map || op->map->in_memory == MAP_SAVING) return;	698	if (!op->map || op->map->in_memory == MAP_SAVING)
990		699	return;
		700
991	/* make sure the object is within map boundaries */	701	/* make sure the object is within map boundaries */
992	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	702	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
993	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	703	{
994	LOG(llevError,"update_object() called for object out of map!\n");	704	LOG (llevError, "update_object() called for object out of map!\n");
995	#ifdef MANY_CORES	705	#ifdef MANY_CORES
996	abort();	706	abort ();
997	#endif	707	#endif
998	return;	708	return;
999	}
1000		709	}
1001	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
1002	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
1003	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
1004	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
1005	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
1006	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
1007		710
		711	mapspace &m = op->ms ();
		712
		713	if (!(m.flags_ & P_UPTODATE))
		714	/* nop */;
1008	if (action == UP_OBJ_INSERT) {	715	else if (action == UP_OBJ_INSERT)
		716	{
		717	// this is likely overkill, TODO: revisit (schmorp)
1009	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	718	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
1010	update_now=1;
1011
1012	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	719	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
1013	update_now=1;	720	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
1014		721	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		722	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
1015	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	723	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
1016	update_now=1;	724	|| (m.move_on | op->move_on ) != m.move_on
1017		725	|| (m.move_off | op->move_off ) != m.move_off
1018	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	726	|| (m.move_slow | op->move_slow) != m.move_slow
1019	update_now=1;
1020
1021	if ((move_on | op->move_on) != move_on) update_now=1;
1022	if ((move_off | op->move_off) != move_off) update_now=1;
1023	/* This isn't perfect, but I don't expect a lot of objects to	727	/* This isn't perfect, but I don't expect a lot of objects to
1024	* to have move_allow right now.	728	* to have move_allow right now.
1025	*/	729	*/
1026	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	730	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
1027	update_now=1;	731	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
1028	if ((move_slow | op->move_slow) != move_slow) update_now=1;	732	m.flags_ = 0;
1029	}	733	}
1030	/* if the object is being removed, we can't make intelligent	734	/* if the object is being removed, we can't make intelligent
1031	* decisions, because remove_ob can't really pass the object	735	* decisions, because remove_ob can't really pass the object
1032	* that is being removed.	736	* that is being removed.
1033	*/	737	*/
1034	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	738	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1035	update_now=1;	739	m.flags_ = 0;
1036	} else if (action == UP_OBJ_FACE) {	740	else if (action == UP_OBJ_FACE)
1037	/* Nothing to do for that case */	741	/* Nothing to do for that case */ ;
1038	}
1039	else {	742	else
1040	LOG(llevError,"update_object called with invalid action: %d\n", action);	743	LOG (llevError, "update_object called with invalid action: %d\n", action);
1041	}
1042		744
1043	if (update_now) {
1044	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1045	update_position(op->map, op->x, op->y);
1046	}
1047
1048	if(op->more!=NULL)	745	if (op->more)
1049	update_object(op->more, action);	746	update_object (op->more, action);
1050	}	747	}
1051		748
		749	object::object ()
		750	{
		751	SET_FLAG (this, FLAG_REMOVED);
1052		752
1053	/*	753	expmul = 1.0;
1054	* free_object() frees everything allocated by an object, removes	754	face = blank_face;
1055	* it from the list of used objects, and puts it on the list of	755	}
1056	* free objects. The IS_FREED() flag is set in the object.	756
1057	* The object must have been removed by remove_ob() first for	757	object::~object ()
1058	* this function to succeed.	758	{
		759	unlink ();
		760
		761	free_key_values (this);
		762	}
		763
		764	static int object_count;
		765
		766	void object::link ()
		767	{
		768	assert (!index);//D
		769	uuid = gen_uuid ();
		770	count = ++object_count;
		771
		772	refcnt_inc ();
		773	objects.insert (this);
		774	}
		775
		776	void object::unlink ()
		777	{
		778	if (!index)
		779	return;
		780
		781	objects.erase (this);
		782	refcnt_dec ();
		783	}
		784
		785	void
		786	object::activate ()
		787	{
		788	/* If already on active list, don't do anything */
		789	if (active)
		790	return;
		791
		792	if (has_active_speed ())
		793	actives.insert (this);
		794	}
		795
		796	void
		797	object::activate_recursive ()
		798	{
		799	activate ();
		800
		801	for (object *op = inv; op; op = op->below)
		802	op->activate_recursive ();
		803	}
		804
		805	/* This function removes object 'op' from the list of active
		806	* objects.
		807	* This should only be used for style maps or other such
		808	* reference maps where you don't want an object that isn't
		809	* in play chewing up cpu time getting processed.
		810	* The reverse of this is to call update_ob_speed, which
		811	* will do the right thing based on the speed of the object.
1059	*	812	*/
1060	* If free_inventory is set, free inventory as well. Else drop items in	813	void
1061	* inventory to the ground.	814	object::deactivate ()
1062	*/	815	{
		816	/* If not on the active list, nothing needs to be done */
		817	if (!active)
		818	return;
1063		819
1064	void free_object(object *ob) {	820	actives.erase (this);
1065	free_object2(ob, 0);
1066	}	821	}
1067	void free_object2(object *ob, int free_inventory) {
1068	object *tmp,*op;
1069		822
1070	ob->clear ();	823	void
		824	object::deactivate_recursive ()
		825	{
		826	for (object *op = inv; op; op = op->below)
		827	op->deactivate_recursive ();
1071		828
1072	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	829	deactivate ();
1073	LOG(llevDebug,"Free object called with non removed object\n");	830	}
1074	dump_object(ob);	831
1075	#ifdef MANY_CORES	832	void
1076	abort();	833	object::set_flag_inv (int flag, int value)
1077	#endif	834	{
		835	for (object *op = inv; op; op = op->below)
1078	}	836	{
1079	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	837	op->flag [flag] = value;
1080	LOG(llevMonster,"Warning: tried to free friendly object.\n");	838	op->set_flag_inv (flag, value);
1081	remove_friendly_object(ob);
1082	}	839	}
1083	if(QUERY_FLAG(ob,FLAG_FREED)) {	840	}
1084	dump_object(ob);	841
1085	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);	842	/*
1086	return;	843	* Remove and free all objects in the inventory of the given object.
1087	}	844	* object.c ?
1088	if(ob->more!=NULL) {	845	*/
1089	free_object2(ob->more, free_inventory);	846	void
1090	ob->more=NULL;	847	object::destroy_inv (bool drop_to_ground)
1091	}	848	{
1092	if (ob->inv) {	849	// need to check first, because the checks below might segfault
		850	// as we might be on an invalid mapspace and crossfire code
		851	// is too buggy to ensure that the inventory is empty.
		852	// corollary: if you create arrows etc. with stuff in tis inventory,
		853	// cf will crash below with off-map x and y
		854	if (!inv)
		855	return;
		856
1093	/* Only if the space blocks everything do we not process -	857	/* Only if the space blocks everything do we not process -
1094	* if some form of movemnt is allowed, let objects	858	* if some form of movement is allowed, let objects
1095	* drop on that space.	859	* drop on that space.
1096	*/	860	*/
1097	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	861	if (!drop_to_ground
1098	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	862	|| !map
1099	{	863	|| map->in_memory != MAP_IN_MEMORY
1100	op=ob->inv;	864	|| map->nodrop
1101	while(op!=NULL) {	865	|| ms ().move_block == MOVE_ALL)
1102	tmp=op->below;	866	{
1103	remove_ob(op);	867	while (inv)
1104	free_object2(op, free_inventory);	868	{
1105	op=tmp;	869	inv->destroy_inv (drop_to_ground);
		870	inv->destroy ();
		871	}
1106	}	872	}
1107	}	873	else
1108	else { /* Put objects in inventory onto this space */	874	{ /* Put objects in inventory onto this space */
1109	op=ob->inv;	875	while (inv)
1110	while(op!=NULL) {	876	{
1111	tmp=op->below;	877	object *op = inv;
1112	remove_ob(op);	878
1113	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||	879	if (op->flag [FLAG_STARTEQUIP]
1114	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))	880	|| op->flag [FLAG_NO_DROP]
1115	free_object(op);	881	|| op->type == RUNE
1116	else {	882	|| op->type == TRAP
1117	op->x=ob->x;	883	|| op->flag [FLAG_IS_A_TEMPLATE]
1118	op->y=ob->y;	884	|| op->flag [FLAG_DESTROY_ON_DEATH])
1119	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */	885	op->destroy ();
1120	}	886	else
1121	op=tmp;	887	map->insert (op, x, y);
		888	}
1122	}	889	}
1123	}	890	}
		891
		892	object *object::create ()
		893	{
		894	object *op = new object;
		895	op->link ();
		896	return op;
		897	}
		898
		899	void
		900	object::do_destroy ()
		901	{
		902	attachable::do_destroy ();
		903
		904	if (flag [FLAG_IS_LINKED])
		905	remove_button_link (this);
		906
		907	if (flag [FLAG_FRIENDLY])
		908	remove_friendly_object (this);
		909
		910	if (!flag [FLAG_REMOVED])
		911	remove ();
		912
		913	destroy_inv (true);
		914
		915	deactivate ();
		916	unlink ();
		917
		918	flag [FLAG_FREED] = 1;
		919
		920	// hack to ensure that freed objects still have a valid map
		921	{
		922	static maptile *freed_map; // freed objects are moved here to avoid crashes
		923
		924	if (!freed_map)
		925	{
		926	freed_map = new maptile;
		927
		928	freed_map->name = "/internal/freed_objects_map";
		929	freed_map->width = 3;
		930	freed_map->height = 3;
		931
		932	freed_map->alloc ();
		933	freed_map->in_memory = MAP_IN_MEMORY;
1124	}	934	}
1125	/* Remove object from the active list */
1126	ob->speed = 0;
1127	update_ob_speed(ob);
1128		935
1129	SET_FLAG(ob, FLAG_FREED);	936	map = freed_map;
1130	ob->count = 0;	937	x = 1;
1131		938	y = 1;
1132	/* Remove this object from the list of used objects */
1133	if(ob->prev==NULL) {
1134	objects=ob->next;
1135	if(objects!=NULL)
1136	objects->prev=NULL;
1137	}
1138	else {
1139	ob->prev->next=ob->next;
1140	if(ob->next!=NULL)
1141	ob->next->prev=ob->prev;
1142	}
1143		939	}
1144	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1145	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1146	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1147	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1148	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1149	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1150	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1151	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1152	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1153		940
		941	if (more)
1154		942	{
1155	/* Why aren't events freed? */	943	more->destroy ();
1156	free_key_values(ob);	944	more = 0;
		945	}
1157		946
1158	#if 0 /* MEMORY_DEBUG*/	947	head = 0;
1159	/* This is a nice idea. Unfortunately, a lot of the code in crossfire
1160	* presumes the freed_object will stick around for at least a little
1161	* bit
1162	*/
1163	/* this is necessary so that memory debugging programs will
1164	* be able to accurately report source of malloc. If we recycle
1165	* objects, then some other area may be doing the get_object
1166	* and not freeing it, but the original one that malloc'd the
1167	* object will get the blame.
1168	*/
1169	free(ob);
1170	#else
1171		948
1172	/* Now link it with the free_objects list: */	949	// clear those pointers that likely might cause circular references
1173	ob->prev=NULL;	950	owner = 0;
1174	ob->next=free_objects;	951	enemy = 0;
1175	if(free_objects!=NULL)	952	attacked_by = 0;
1176	free_objects->prev=ob;	953	current_weapon = 0;
1177	free_objects=ob;
1178	nroffreeobjects++;
1179	#endif
1180	}	954	}
1181		955
1182	/*	956	void
1183	* count_free() returns the number of objects on the list of free objects.	957	object::destroy (bool destroy_inventory)
1184	*/	958	{
1185		959	if (destroyed ())
1186	int count_free(void) {
1187	int i=0;
1188	object *tmp=free_objects;
1189	while(tmp!=NULL)
1190	tmp=tmp->next, i++;
1191	return i;	960	return;
1192	}
1193		961
1194	/*	962	if (destroy_inventory)
1195	* count_used() returns the number of objects on the list of used objects.	963	destroy_inv (false);
1196	*/
1197		964
1198	int count_used(void) {	965	play_sound (sound_destroy);
1199	int i=0;
1200	object *tmp=objects;
1201	while(tmp!=NULL)
1202	tmp=tmp->next, i++;
1203	return i;
1204	}
1205		966
1206	/*	967	attachable::destroy ();
1207	* count_active() returns the number of objects on the list of active objects.
1208	*/
1209
1210	int count_active(void) {
1211	int i=0;
1212	object *tmp=active_objects;
1213	while(tmp!=NULL)
1214	tmp=tmp->active_next, i++;
1215	return i;
1216	}	968	}
1217		969
1218	/*	970	/*
1219	* sub_weight() recursively (outwards) subtracts a number from the	971	* sub_weight() recursively (outwards) subtracts a number from the
1220	* weight of an object (and what is carried by it's environment(s)).	972	* weight of an object (and what is carried by it's environment(s)).
1221	*/	973	*/
1222		974	void
1223	void sub_weight (object *op, signed long weight) {	975	sub_weight (object *op, signed long weight)
		976	{
1224	while (op != NULL) {	977	while (op != NULL)
		978	{
1225	if (op->type == CONTAINER) {	979	if (op->type == CONTAINER)
1226	weight=(signed long)(weight*(100-op->stats.Str)/100);	980	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1227	}	981
1228	op->carrying-=weight;	982	op->carrying -= weight;
1229	op = op->env;	983	op = op->env;
1230	}	984	}
1231	}	985	}
1232		986
1233	/* remove_ob(op):	987	/* op->remove ():
1234	* This function removes the object op from the linked list of objects	988	* This function removes the object op from the linked list of objects
1235	* which it is currently tied to. When this function is done, the	989	* which it is currently tied to. When this function is done, the
1236	* object will have no environment. If the object previously had an	990	* object will have no environment. If the object previously had an
1237	* environment, the x and y coordinates will be updated to	991	* environment, the x and y coordinates will be updated to
1238	* the previous environment.	992	* the previous environment.
1239	* Beware: This function is called from the editor as well!
1240	*/	993	*/
1241		994	void
1242	void remove_ob(object *op) {	995	object::do_remove ()
		996	{
1243	object *tmp,*last=NULL;	997	object *tmp, *last = 0;
1244	object *otmp;	998	object *otmp;
1245	tag_t tag;
1246	int check_walk_off;
1247	mapstruct *m;
1248	sint16 x,y;
1249
1250		999
1251	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1000	if (QUERY_FLAG (this, FLAG_REMOVED))
1252	dump_object(op);	1001	return;
1253	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1254		1002
1255	/* Changed it to always dump core in this case. As has been learned
1256	* in the past, trying to recover from errors almost always
1257	* make things worse, and this is a real error here - something
1258	* that should not happen.
1259	* Yes, if this was a mission critical app, trying to do something
1260	* to recover may make sense, but that is because failure of the app
1261	* may have other disastrous problems. Cf runs out of a script
1262	* so is easily enough restarted without any real problems.
1263	* MSW 2001-07-01
1264	*/
1265	abort();
1266	}
1267	if(op->more!=NULL)
1268	remove_ob(op->more);
1269
1270	SET_FLAG(op, FLAG_REMOVED);	1003	SET_FLAG (this, FLAG_REMOVED);
		1004	INVOKE_OBJECT (REMOVE, this);
1271		1005
		1006	if (more)
		1007	more->remove ();
		1008
1272	/*	1009	/*
1273	* In this case, the object to be removed is in someones	1010	* In this case, the object to be removed is in someones
1274	* inventory.	1011	* inventory.
1275	*/	1012	*/
1276	if(op->env!=NULL) {	1013	if (env)
1277	if(op->nrof)	1014	{
		1015	if (nrof)
1278	sub_weight(op->env, op->weight*op->nrof);	1016	sub_weight (env, weight * nrof);
1279	else	1017	else
1280	sub_weight(op->env, op->weight+op->carrying);	1018	sub_weight (env, weight + carrying);
1281		1019
1282	/* NO_FIX_PLAYER is set when a great many changes are being	1020	/* NO_FIX_PLAYER is set when a great many changes are being
1283	* made to players inventory. If set, avoiding the call	1021	* made to players inventory. If set, avoiding the call
1284	* to save cpu time.	1022	* to save cpu time.
1285	*/	1023	*/
1286	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1024	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1287	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1025	otmp->update_stats ();
1288	fix_player(otmp);
1289		1026
1290	if(op->above!=NULL)	1027	if (above)
1291	op->above->below=op->below;	1028	above->below = below;
1292	else	1029	else
1293	op->env->inv=op->below;	1030	env->inv = below;
1294		1031
1295	if(op->below!=NULL)	1032	if (below)
1296	op->below->above=op->above;	1033	below->above = above;
1297		1034
1298	/* we set up values so that it could be inserted into	1035	/* we set up values so that it could be inserted into
1299	* the map, but we don't actually do that - it is up	1036	* the map, but we don't actually do that - it is up
1300	* to the caller to decide what we want to do.	1037	* to the caller to decide what we want to do.
1301	*/
1302	op->x=op->env->x,op->y=op->env->y;
1303	op->ox=op->x,op->oy=op->y;
1304	op->map=op->env->map;
1305	op->above=NULL,op->below=NULL;
1306	op->env=NULL;
1307	return;
1308	}
1309
1310	/* If we get here, we are removing it from a map */
1311	if (op->map == NULL) return;
1312
1313	x = op->x;
1314	y = op->y;
1315	m = get_map_from_coord(op->map, &x, &y);
1316
1317	if (!m) {
1318	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1319	op->map->path, op->x, op->y);
1320	/* in old days, we used to set x and y to 0 and continue.
1321	* it seems if we get into this case, something is probablye
1322	* screwed up and should be fixed.
1323	*/
1324	abort();
1325	}
1326	if (op->map != m) {
1327	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1328	op->map->path, m->path, op->x, op->y, x, y);
1329	}
1330
1331	/* Re did the following section of code - it looks like it had
1332	* lots of logic for things we no longer care about
1333	*/	1038	*/
		1039	x = env->x, y = env->y;
		1040	map = env->map;
		1041	above = 0, below = 0;
		1042	env = 0;
		1043	}
		1044	else if (map)
		1045	{
		1046	if (type == PLAYER)
		1047	{
		1048	// leaving a spot always closes any open container on the ground
		1049	if (container && !container->env)
		1050	// this causes spurious floorbox updates, but it ensures
		1051	// that the CLOSE event is being sent.
		1052	close_container ();
1334		1053
		1054	--map->players;
		1055	map->touch ();
		1056	}
		1057
		1058	map->dirty = true;
		1059	mapspace &ms = this->ms ();
		1060
1335	/* link the object above us */	1061	/* link the object above us */
1336	if (op->above)	1062	if (above)
1337	op->above->below=op->below;	1063	above->below = below;
1338	else	1064	else
1339	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */	1065	ms.top = below; /* we were top, set new top */
1340		1066
1341	/* Relink the object below us, if there is one */	1067	/* Relink the object below us, if there is one */
1342	if(op->below) {	1068	if (below)
1343	op->below->above=op->above;	1069	below->above = above;
1344	} else {	1070	else
		1071	{
1345	/* Nothing below, which means we need to relink map object for this space	1072	/* Nothing below, which means we need to relink map object for this space
1346	* use translated coordinates in case some oddness with map tiling is	1073	* use translated coordinates in case some oddness with map tiling is
1347	* evident	1074	* evident
1348	*/	1075	*/
1349	if(GET_MAP_OB(m,x,y)!=op) {	1076	if (GET_MAP_OB (map, x, y) != this)
1350	dump_object(op);
1351	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);	1077	LOG (llevError, "remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom? %s\n", debug_desc ());
1352	dump_object(GET_MAP_OB(m,x,y));
1353	LOG(llevError,"%s\n",errmsg);
1354	}
1355	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1356	}
1357	op->above=NULL;
1358	op->below=NULL;
1359		1078
		1079	ms.bot = above; /* goes on above it. */
		1080	}
		1081
		1082	above = 0;
		1083	below = 0;
		1084
1360	if (op->map->in_memory == MAP_SAVING)	1085	if (map->in_memory == MAP_SAVING)
1361	return;	1086	return;
1362		1087
1363	tag = op->count;	1088	int check_walk_off = !flag [FLAG_NO_APPLY];
1364	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1089
1365	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1090	for (tmp = ms.bot; tmp; tmp = tmp->above)
		1091	{
1366	/* No point updating the players look faces if he is the object	1092	/* No point updating the players look faces if he is the object
1367	* being removed.	1093	* being removed.
1368	*/	1094	*/
1369		1095
1370	if(tmp->type==PLAYER && tmp!=op) {	1096	if (tmp->type == PLAYER && tmp != this)
		1097	{
1371	/* If a container that the player is currently using somehow gets	1098	/* If a container that the player is currently using somehow gets
1372	* removed (most likely destroyed), update the player view	1099	* removed (most likely destroyed), update the player view
1373	* appropriately.	1100	* appropriately.
1374	*/	1101	*/
1375	if (tmp->container==op) {	1102	if (tmp->container == this)
1376	CLEAR_FLAG(op, FLAG_APPLIED);	1103	{
1377	tmp->container=NULL;	1104	flag [FLAG_APPLIED] = 0;
1378	}	1105	tmp->container = 0;
1379	tmp->contr->socket.update_look=1;	1106	}
1380	}	1107
		1108	if (tmp->contr->ns)
		1109	tmp->contr->ns->floorbox_update ();
		1110	}
		1111
1381	/* See if player moving off should effect something */	1112	/* See if object moving off should effect something */
1382	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1113	if (check_walk_off
		1114	&& ((move_type & tmp->move_off)
1383	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1115	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1116	{
		1117	move_apply (tmp, this, 0);
1384		1118
1385	move_apply(tmp, op, NULL);	1119	if (destroyed ())
1386	if (was_destroyed (op, tag)) {	1120	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1387	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1121	}
1388	"leaving object\n", tmp->name, tmp->arch->name);
1389	}
1390	}
1391		1122
1392	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1123	last = tmp;
		1124	}
1393		1125
1394	if(tmp->above == tmp)
1395	tmp->above = NULL;
1396	last=tmp;
1397	}
1398	/* last == NULL of there are no objects on this space */	1126	/* last == NULL if there are no objects on this space */
1399	if (last==NULL) {	1127	//TODO: this makes little sense, why only update the topmost object?
1400	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1128	if (!last)
1401	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1129	map->at (x, y).flags_ = 0;
1402	* those out anyways, and if there are any flags set right now, they won't
1403	* be correct anyways.
1404	*/
1405	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1406	update_position(op->map, op->x, op->y);
1407	}
1408	else	1130	else
1409	update_object(last, UP_OBJ_REMOVE);	1131	update_object (last, UP_OBJ_REMOVE);
1410		1132
1411	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1133	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1412	update_all_los(op->map, op->x, op->y);	1134	update_all_los (map, x, y);
1413		1135	}
1414	}	1136	}
1415		1137
1416	/*	1138	/*
1417	* merge_ob(op,top):	1139	* merge_ob(op,top):
1418	*	1140	*
1419	* This function goes through all objects below and including top, and	1141	* This function goes through all objects below and including top, and
1420	* merges op to the first matching object.	1142	* merges op to the first matching object.
1421	* If top is NULL, it is calculated.	1143	* If top is NULL, it is calculated.
1422	* Returns pointer to object if it succeded in the merge, otherwise NULL	1144	* Returns pointer to object if it succeded in the merge, otherwise NULL
1423	*/	1145	*/
1424		1146	object *
1425	object *merge_ob(object *op, object *top) {	1147	merge_ob (object *op, object *top)
		1148	{
1426	if(!op->nrof)	1149	if (!op->nrof)
1427	return 0;	1150	return 0;
1428	if(top==NULL)	1151
		1152	if (top)
1429	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1153	for (top = op; top && top->above; top = top->above)
		1154	;
		1155
1430	for(;top!=NULL;top=top->below) {	1156	for (; top; top = top->below)
		1157	{
1431	if(top==op)	1158	if (top == op)
1432	continue;	1159	continue;
1433	if (CAN_MERGE(op,top))	1160
1434	{	1161	if (object::can_merge (op, top))
		1162	{
1435	top->nrof+=op->nrof;	1163	top->nrof += op->nrof;
		1164
1436	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1165	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1437	op->weight = 0; /* Don't want any adjustements now */	1166	op->weight = 0; /* Don't want any adjustements now */
1438	remove_ob(op);	1167	op->destroy ();
1439	free_object(op);
1440	return top;	1168	return top;
1441	}	1169	}
1442	}	1170	}
		1171
1443	return NULL;	1172	return 0;
1444	}	1173	}
1445		1174
		1175	void
		1176	object::expand_tail ()
		1177	{
		1178	if (more)
		1179	return;
		1180
		1181	object *prev = this;
		1182
		1183	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1184	{
		1185	object *op = arch_to_object (at);
		1186
		1187	op->name = name;
		1188	op->name_pl = name_pl;
		1189	op->title = title;
		1190
		1191	op->head = this;
		1192	prev->more = op;
		1193
		1194	prev = op;
		1195	}
		1196	}
		1197
1446	/*	1198	/*
1447	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1199	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1448	* job preparing multi-part monsters	1200	* job preparing multi-part monsters.
1449	*/	1201	*/
		1202	object *
1450	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1203	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1451	object* tmp;	1204	{
1452	if (op->head)	1205	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1453	op=op->head;	1206	{
1454	for (tmp=op;tmp;tmp=tmp->more){
1455	tmp->x=x+tmp->arch->clone.x;	1207	tmp->x = x + tmp->arch->x;
1456	tmp->y=y+tmp->arch->clone.y;	1208	tmp->y = y + tmp->arch->y;
1457	}	1209	}
		1210
1458	return insert_ob_in_map (op, m, originator, flag);	1211	return insert_ob_in_map (op, m, originator, flag);
1459	}	1212	}
1460		1213
1461	/*	1214	/*
1462	* insert_ob_in_map (op, map, originator, flag):	1215	* insert_ob_in_map (op, map, originator, flag):
1463	* This function inserts the object in the two-way linked list	1216	* This function inserts the object in the two-way linked list
…		…
1476	* Return value:	1229	* Return value:
1477	* new object if 'op' was merged with other object	1230	* new object if 'op' was merged with other object
1478	* NULL if 'op' was destroyed	1231	* NULL if 'op' was destroyed
1479	* just 'op' otherwise	1232	* just 'op' otherwise
1480	*/	1233	*/
1481		1234	object *
1482	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1235	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1483	{	1236	{
		1237	assert (!op->flag [FLAG_FREED]);
		1238
1484	object *tmp, *top, *floor=NULL;	1239	object *top, *floor = NULL;
1485	sint16 x,y;
1486		1240
1487	if (QUERY_FLAG (op, FLAG_FREED)) {	1241	op->remove ();
1488	LOG (llevError, "Trying to insert freed object!\n");	1242
1489	return NULL;	1243	#if 0
1490	}	1244	if (!m->active != !op->active)
1491	if(m==NULL) {	1245	if (m->active)
1492	dump_object(op);	1246	op->activate_recursive ();
1493	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1247	else
1494	return op;	1248	op->deactivate_recursive ();
1495	}	1249	#endif
		1250
1496	if(out_of_map(m,op->x,op->y)) {	1251	if (out_of_map (m, op->x, op->y))
1497	dump_object(op);	1252	{
1498	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1253	LOG (llevError, "Trying to insert object outside the map.\n%s\n", op->debug_desc ());
1499	#ifdef MANY_CORES	1254	#ifdef MANY_CORES
1500	/* Better to catch this here, as otherwise the next use of this object	1255	/* Better to catch this here, as otherwise the next use of this object
1501	* is likely to cause a crash. Better to find out where it is getting	1256	* is likely to cause a crash. Better to find out where it is getting
1502	* improperly inserted.	1257	* improperly inserted.
1503	*/	1258	*/
1504	abort();	1259	abort ();
1505	#endif	1260	#endif
1506	return op;	1261	return op;
1507	}	1262	}
1508	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1509	dump_object(op);
1510	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);
1511	return op;
1512	}
1513	if(op->more!=NULL) {
1514	/* The part may be on a different map. */
1515		1263
1516	object *more = op->more;	1264	if (object *more = op->more)
1517
1518	/* We really need the caller to normalize coordinates - if
1519	* we set the map, that doesn't work if the location is within
1520	* a map and this is straddling an edge. So only if coordinate
1521	* is clear wrong do we normalize it.
1522	*/
1523	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {
1524	/* Debugging information so you can see the last coordinates this object had */
1525	more->ox = more->x;
1526	more->oy = more->y;
1527	more->map = get_map_from_coord(m, &more->x, &more->y);
1528	} else if (!more->map) {
1529	/* For backwards compatibility - when not dealing with tiled maps,
1530	* more->map should always point to the parent.
1531	*/
1532	more->map = m;
1533	}
1534
1535	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1265	if (!insert_ob_in_map (more, m, originator, flag))
1536	if ( ! op->head)
1537	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1538	return NULL;	1266	return 0;
1539	}	1267
1540	}
1541	CLEAR_FLAG(op,FLAG_REMOVED);	1268	CLEAR_FLAG (op, FLAG_REMOVED);
1542		1269
1543	/* Debugging information so you can see the last coordinates this object had */
1544	op->ox=op->x;
1545	op->oy=op->y;
1546
1547	/* Ideally, the caller figures this out. However, it complicates a lot	1270	/* Ideally, the caller figures this out. However, it complicates a lot
1548	* of areas of callers (eg, anything that uses find_free_spot would now	1271	* of areas of callers (eg, anything that uses find_free_spot would now
1549	* need extra work	1272	* need extra work
1550	*/	1273	*/
1551	op->map=get_map_from_coord(m, &op->x, &op->y);	1274	if (!xy_normalise (m, op->x, op->y))
1552	x = op->x;	1275	return 0;
1553	y = op->y;
1554		1276
		1277	op->map = m;
		1278	mapspace &ms = op->ms ();
		1279
1555	/* this has to be done after we translate the coordinates.	1280	/* this has to be done after we translate the coordinates.
1556	*/	1281	*/
1557	if(op->nrof && !(flag & INS_NO_MERGE)) {	1282	if (op->nrof && !(flag & INS_NO_MERGE))
1558	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1283	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1559	if (CAN_MERGE(op,tmp)) {	1284	if (object::can_merge (op, tmp))
1560	op->nrof+=tmp->nrof;	1285	{
1561	remove_ob(tmp);	1286	op->nrof += tmp->nrof;
1562	free_object(tmp);	1287	tmp->destroy ();
1563	}	1288	}
1564	}
1565		1289
1566	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1290	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1567	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1291	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1292
1568	if (!QUERY_FLAG(op, FLAG_ALIVE))	1293	if (!QUERY_FLAG (op, FLAG_ALIVE))
1569	CLEAR_FLAG(op, FLAG_NO_STEAL);	1294	CLEAR_FLAG (op, FLAG_NO_STEAL);
1570		1295
1571	if (flag & INS_BELOW_ORIGINATOR) {	1296	if (flag & INS_BELOW_ORIGINATOR)
		1297	{
1572	if (originator->map != op->map || originator->x != op->x ||	1298	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1573	originator->y != op->y) {	1299	{
1574	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1300	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1575	abort();	1301	abort ();
1576	}	1302	}
		1303
1577	op->above = originator;	1304	op->above = originator;
1578	op->below = originator->below;	1305	op->below = originator->below;
1579	if (op->below) op->below->above = op;	1306
1580	else SET_MAP_OB(op->map, op->x, op->y, op);	1307	if (op->below)
		1308	op->below->above = op;
		1309	else
		1310	ms.bot = op;
		1311
1581	/* since *below* originator, no need to update top */	1312	/* since *below* originator, no need to update top */
1582	originator->below = op;	1313	originator->below = op;
1583	} else {	1314	}
		1315	else
		1316	{
		1317	top = ms.bot;
		1318
1584	/* If there are other objects, then */	1319	/* If there are other objects, then */
1585	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1320	if ((!(flag & INS_MAP_LOAD)) && top)
1586	object *last=NULL;	1321	{
1587	/*	1322	object *last = 0;
		1323
		1324	/*
1588	* If there are multiple objects on this space, we do some trickier handling.	1325	* If there are multiple objects on this space, we do some trickier handling.
1589	* We've already dealt with merging if appropriate.	1326	* We've already dealt with merging if appropriate.
1590	* Generally, we want to put the new object on top. But if	1327	* Generally, we want to put the new object on top. But if
1591	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1328	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1592	* floor, we want to insert above that and no further.	1329	* floor, we want to insert above that and no further.
1593	* Also, if there are spell objects on this space, we stop processing	1330	* Also, if there are spell objects on this space, we stop processing
1594	* once we get to them. This reduces the need to traverse over all of	1331	* once we get to them. This reduces the need to traverse over all of
1595	* them when adding another one - this saves quite a bit of cpu time	1332	* them when adding another one - this saves quite a bit of cpu time
1596	* when lots of spells are cast in one area. Currently, it is presumed	1333	* when lots of spells are cast in one area. Currently, it is presumed
1597	* that flying non pickable objects are spell objects.	1334	* that flying non pickable objects are spell objects.
1598	*/	1335	*/
		1336	for (top = ms.bot; top; top = top->above)
		1337	{
		1338	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1339	floor = top;
1599		1340
1600	while (top != NULL) {	1341	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1601	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1602	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1603	if (QUERY_FLAG(top, FLAG_NO_PICK)
1604	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1605	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1606	{	1342	{
1607	/* We insert above top, so we want this object below this */	1343	/* We insert above top, so we want this object below this */
1608	top=top->below;	1344	top = top->below;
1609	break;	1345	break;
1610	}	1346	}
1611	last = top;	1347
1612	top = top->above;	1348	last = top;
1613	}	1349	}
		1350
1614	/* Don't want top to be NULL, so set it to the last valid object */	1351	/* Don't want top to be NULL, so set it to the last valid object */
1615	top = last;	1352	top = last;
1616		1353
1617	/* We let update_position deal with figuring out what the space	1354	/* We let update_position deal with figuring out what the space
1618	* looks like instead of lots of conditions here.	1355	* looks like instead of lots of conditions here.
1619	* makes things faster, and effectively the same result.	1356	* makes things faster, and effectively the same result.
1620	*/	1357	*/
1621		1358
1622	/* Have object 'fall below' other objects that block view.	1359	/* Have object 'fall below' other objects that block view.
1623	* Unless those objects are exits, type 66	1360	* Unless those objects are exits.
1624	* If INS_ON_TOP is used, don't do this processing	1361	* If INS_ON_TOP is used, don't do this processing
1625	* Need to find the object that in fact blocks view, otherwise	1362	* Need to find the object that in fact blocks view, otherwise
1626	* stacking is a bit odd.	1363	* stacking is a bit odd.
1627	*/	1364	*/
1628	if (!(flag & INS_ON_TOP) &&	1365	if (!(flag & INS_ON_TOP)
1629	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1366	&& ms.flags () & P_BLOCKSVIEW
1630	(op->face && !op->face->visibility)) {	1367	&& (op->face && !faces [op->face].visibility))
		1368	{
1631	for (last=top; last != floor; last=last->below)	1369	for (last = top; last != floor; last = last->below)
1632	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1370	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1371	break;
		1372
1633	/* Check to see if we found the object that blocks view,	1373	/* Check to see if we found the object that blocks view,
1634	* and make sure we have a below pointer for it so that	1374	* and make sure we have a below pointer for it so that
1635	* we can get inserted below this one, which requires we	1375	* we can get inserted below this one, which requires we
1636	* set top to the object below us.	1376	* set top to the object below us.
1637	*/	1377	*/
1638	if (last && last->below && last != floor) top=last->below;	1378	if (last && last->below && last != floor)
1639	}	1379	top = last->below;
1640	} /* If objects on this space */	1380	}
		1381	} /* If objects on this space */
1641	if (flag & INS_MAP_LOAD)	1382	if (flag & INS_MAP_LOAD)
1642	top = GET_MAP_TOP(op->map,op->x,op->y);	1383	top = ms.top;
		1384
1643	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1385	if (flag & INS_ABOVE_FLOOR_ONLY)
		1386	top = floor;
1644		1387
1645	/* Top is the object that our object (op) is going to get inserted above.	1388	/* Top is the object that our object (op) is going to get inserted above.
1646	*/	1389	*/
1647		1390
1648	/* First object on this space */	1391	/* First object on this space */
1649	if (!top) {	1392	if (!top)
1650	op->above = GET_MAP_OB(op->map, op->x, op->y);	1393	{
1651	if (op->above) op->above->below = op;	1394	op->above = ms.bot;
1652	op->below = NULL;	1395
1653	SET_MAP_OB(op->map, op->x, op->y, op);	1396	if (op->above)
1654	} else { /* get inserted into the stack above top */	1397	op->above->below = op;
		1398
		1399	op->below = 0;
		1400	ms.bot = op;
		1401	}
		1402	else
		1403	{ /* get inserted into the stack above top */
1655	op->above = top->above;	1404	op->above = top->above;
1656	if (op->above) op->above->below = op;	1405
		1406	if (op->above)
		1407	op->above->below = op;
		1408
1657	op->below = top;	1409	op->below = top;
1658	top->above = op;	1410	top->above = op;
1659	}	1411	}
1660	if (op->above==NULL)	1412
1661	SET_MAP_TOP(op->map,op->x, op->y, op);	1413	if (!op->above)
		1414	ms.top = op;
1662	} /* else not INS_BELOW_ORIGINATOR */	1415	} /* else not INS_BELOW_ORIGINATOR */
1663		1416
1664	if(op->type==PLAYER)	1417	if (op->type == PLAYER)
		1418	{
1665	op->contr->do_los=1;	1419	op->contr->do_los = 1;
		1420	++op->map->players;
		1421	op->map->touch ();
		1422	}
1666		1423
		1424	op->map->dirty = true;
		1425
1667	/* If we have a floor, we know the player, if any, will be above	1426	/* If we have a floor, we know the player, if any, will be above
1668	* it, so save a few ticks and start from there.	1427	* it, so save a few ticks and start from there.
1669	*/	1428	*/
1670	if (!(flag & INS_MAP_LOAD))	1429	if (!(flag & INS_MAP_LOAD))
1671	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1430	if (object *pl = ms.player ())
1672	if (tmp->type == PLAYER)	1431	if (pl->contr->ns)
1673	tmp->contr->socket.update_look=1;	1432	pl->contr->ns->floorbox_update ();
1674	}
1675		1433
1676	/* If this object glows, it may affect lighting conditions that are	1434	/* If this object glows, it may affect lighting conditions that are
1677	* visible to others on this map. But update_all_los is really	1435	* visible to others on this map. But update_all_los is really
1678	* an inefficient way to do this, as it means los for all players	1436	* an inefficient way to do this, as it means los for all players
1679	* on the map will get recalculated. The players could very well	1437	* on the map will get recalculated. The players could very well
1680	* be far away from this change and not affected in any way -	1438	* be far away from this change and not affected in any way -
1681	* this should get redone to only look for players within range,	1439	* this should get redone to only look for players within range,
1682	* or just updating the P_NEED_UPDATE for spaces within this area	1440	* or just updating the P_UPTODATE for spaces within this area
1683	* of effect may be sufficient.	1441	* of effect may be sufficient.
1684	*/	1442	*/
1685	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1443	if (op->map->darkness && (op->glow_radius != 0))
1686	update_all_los(op->map, op->x, op->y);	1444	update_all_los (op->map, op->x, op->y);
1687		1445
1688
1689	/* updates flags (blocked, alive, no magic, etc) for this map space */	1446	/* updates flags (blocked, alive, no magic, etc) for this map space */
1690	update_object(op,UP_OBJ_INSERT);	1447	update_object (op, UP_OBJ_INSERT);
1691		1448
		1449	INVOKE_OBJECT (INSERT, op);
1692		1450
1693	/* Don't know if moving this to the end will break anything. However,	1451	/* Don't know if moving this to the end will break anything. However,
1694	* we want to have update_look set above before calling this.	1452	* we want to have floorbox_update called before calling this.
1695	*	1453	*
1696	* check_move_on() must be after this because code called from	1454	* check_move_on() must be after this because code called from
1697	* check_move_on() depends on correct map flags (so functions like	1455	* check_move_on() depends on correct map flags (so functions like
1698	* blocked() and wall() work properly), and these flags are updated by	1456	* blocked() and wall() work properly), and these flags are updated by
1699	* update_object().	1457	* update_object().
1700	*/	1458	*/
1701		1459
1702	/* if this is not the head or flag has been passed, don't check walk on status */	1460	/* if this is not the head or flag has been passed, don't check walk on status */
1703
1704	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1461	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
		1462	{
1705	if (check_move_on(op, originator))	1463	if (check_move_on (op, originator))
1706	return NULL;	1464	return 0;
1707		1465
1708	/* If we are a multi part object, lets work our way through the check	1466	/* If we are a multi part object, lets work our way through the check
1709	* walk on's.	1467	* walk on's.
1710	*/	1468	*/
1711	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1469	for (object *tmp = op->more; tmp; tmp = tmp->more)
1712	if (check_move_on (tmp, originator))	1470	if (check_move_on (tmp, originator))
1713	return NULL;	1471	return 0;
1714	}	1472	}
		1473
1715	return op;	1474	return op;
1716	}	1475	}
1717		1476
1718	/* this function inserts an object in the map, but if it	1477	/* this function inserts an object in the map, but if it
1719	* finds an object of its own type, it'll remove that one first.	1478	* finds an object of its own type, it'll remove that one first.
1720	* op is the object to insert it under: supplies x and the map.	1479	* op is the object to insert it under: supplies x and the map.
1721	*/	1480	*/
		1481	void
1722	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1482	replace_insert_ob_in_map (const char *arch_string, object *op)
1723	object *tmp;	1483	{
1724	object *tmp1;	1484	object *tmp, *tmp1;
1725		1485
1726	/* first search for itself and remove any old instances */	1486	/* first search for itself and remove any old instances */
1727		1487
1728	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1488	for (tmp = op->ms ().bot; tmp; tmp = tmp->above)
1729	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1489	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1730	remove_ob(tmp);	1490	tmp->destroy ();
1731	free_object(tmp);
1732	}
1733	}
1734		1491
1735	tmp1=arch_to_object(find_archetype(arch_string));	1492	tmp1 = arch_to_object (archetype::find (arch_string));
1736		1493
1737		1494	tmp1->x = op->x;
1738	tmp1->x = op->x; tmp1->y = op->y;	1495	tmp1->y = op->y;
1739	insert_ob_in_map(tmp1,op->map,op,0);	1496	insert_ob_in_map (tmp1, op->map, op, 0);
1740	}	1497	}
		1498
		1499	object *
		1500	object::insert_at (object *where, object *originator, int flags)
		1501	{
		1502	return where->map->insert (this, where->x, where->y, originator, flags);
		1503	}
1741		1504
1742	/*	1505	/*
1743	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1506	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1744	* is returned contains nr objects, and the remaining parts contains	1507	* is returned contains nr objects, and the remaining parts contains
1745	* the rest (or is removed and freed if that number is 0).	1508	* the rest (or is removed and freed if that number is 0).
1746	* On failure, NULL is returned, and the reason put into the	1509	* On failure, NULL is returned, and the reason put into the
1747	* global static errmsg array.	1510	* global static errmsg array.
1748	*/	1511	*/
1749		1512	object *
1750	object *get_split_ob(object *orig_ob, uint32 nr) {	1513	get_split_ob (object *orig_ob, uint32 nr)
		1514	{
1751	object *newob;	1515	object *newob;
1752	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1516	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1753		1517
1754	if(orig_ob->nrof<nr) {	1518	if (orig_ob->nrof < nr)
1755	sprintf(errmsg,"There are only %d %ss.",
1756	orig_ob->nrof?orig_ob->nrof:1, orig_ob->name);
1757	return NULL;
1758	}	1519	{
		1520	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
		1521	return NULL;
		1522	}
		1523
1759	newob = object_create_clone(orig_ob);	1524	newob = object_create_clone (orig_ob);
		1525
1760	if((orig_ob->nrof-=nr)<1) {	1526	if ((orig_ob->nrof -= nr) < 1)
1761	if ( ! is_removed)	1527	orig_ob->destroy (1);
1762	remove_ob(orig_ob);
1763	free_object2(orig_ob, 1);
1764	}
1765	else if ( ! is_removed) {	1528	else if (!is_removed)
		1529	{
1766	if(orig_ob->env!=NULL)	1530	if (orig_ob->env != NULL)
1767	sub_weight (orig_ob->env,orig_ob->weight*nr);	1531	sub_weight (orig_ob->env, orig_ob->weight * nr);
1768	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1532	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1533	{
1769	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1534	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1770	LOG(llevDebug,
1771	"Error, Tried to split object whose map is not in memory.\n");	1535	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1772	return NULL;	1536	return NULL;
1773	}	1537	}
1774	}	1538	}
		1539
1775	newob->nrof=nr;	1540	newob->nrof = nr;
1776		1541
1777	return newob;	1542	return newob;
1778	}	1543	}
1779		1544
1780	/*	1545	/*
1781	* decrease_ob_nr(object, number) decreases a specified number from	1546	* decrease_ob_nr(object, number) decreases a specified number from
1782	* the amount of an object. If the amount reaches 0, the object	1547	* the amount of an object. If the amount reaches 0, the object
1783	* is subsequently removed and freed.	1548	* is subsequently removed and freed.
1784	*	1549	*
1785	* Return value: 'op' if something is left, NULL if the amount reached 0	1550	* Return value: 'op' if something is left, NULL if the amount reached 0
1786	*/	1551	*/
1787		1552	object *
1788	object *decrease_ob_nr (object *op, uint32 i)	1553	decrease_ob_nr (object *op, uint32 i)
1789	{	1554	{
1790	object *tmp;	1555	object *tmp;
1791	player *pl;
1792		1556
1793	if (i == 0) /* objects with op->nrof require this check */	1557	if (i == 0) /* objects with op->nrof require this check */
1794	return op;	1558	return op;
1795		1559
1796	if (i > op->nrof)	1560	if (i > op->nrof)
1797	i = op->nrof;	1561	i = op->nrof;
1798		1562
1799	if (QUERY_FLAG (op, FLAG_REMOVED))	1563	if (QUERY_FLAG (op, FLAG_REMOVED))
		1564	op->nrof -= i;
		1565	else if (op->env)
		1566	{
		1567	/* is this object in the players inventory, or sub container
		1568	* therein?
		1569	*/
		1570	tmp = op->in_player ();
		1571	/* nope. Is this a container the player has opened?
		1572	* If so, set tmp to that player.
		1573	* IMO, searching through all the players will mostly
		1574	* likely be quicker than following op->env to the map,
		1575	* and then searching the map for a player.
		1576	*/
		1577	if (!tmp)
		1578	for_all_players (pl)
		1579	if (pl->ob->container == op->env)
		1580	{
		1581	tmp = pl->ob;
		1582	break;
		1583	}
		1584
		1585	if (i < op->nrof)
		1586	{
		1587	sub_weight (op->env, op->weight * i);
		1588	op->nrof -= i;
		1589	if (tmp)
		1590	esrv_send_item (tmp, op);
		1591	}
		1592	else
		1593	{
		1594	op->remove ();
		1595	op->nrof = 0;
		1596	if (tmp)
		1597	esrv_del_item (tmp->contr, op->count);
		1598	}
1800	{	1599	}
		1600	else
		1601	{
		1602	object *above = op->above;
		1603
		1604	if (i < op->nrof)
1801	op->nrof -= i;	1605	op->nrof -= i;
1802	}
1803	else if (op->env != NULL)
1804	{
1805	/* is this object in the players inventory, or sub container
1806	* therein?
1807	*/
1808	tmp = is_player_inv (op->env);
1809	/* nope. Is this a container the player has opened?
1810	* If so, set tmp to that player.
1811	* IMO, searching through all the players will mostly
1812	* likely be quicker than following op->env to the map,
1813	* and then searching the map for a player.
1814	*/
1815	if (!tmp) {
1816	for (pl=first_player; pl; pl=pl->next)
1817	if (pl->ob->container == op->env) break;
1818	if (pl) tmp=pl->ob;
1819	else tmp=NULL;
1820	}
1821
1822	if (i < op->nrof) {
1823	sub_weight (op->env, op->weight * i);
1824	op->nrof -= i;
1825	if (tmp) {
1826	esrv_send_item(tmp, op);
1827	}
1828	} else {	1606	else
		1607	{
1829	remove_ob (op);	1608	op->remove ();
1830	op->nrof = 0;	1609	op->nrof = 0;
1831	if (tmp) {
1832	esrv_del_item(tmp->contr, op->count);
1833	}
1834	}	1610	}
1835	}
1836	else
1837	{
1838	object *above = op->above;
1839		1611
1840	if (i < op->nrof) {
1841	op->nrof -= i;
1842	} else {
1843	remove_ob (op);
1844	op->nrof = 0;
1845	}
1846	/* Since we just removed op, op->above is null */	1612	/* Since we just removed op, op->above is null */
1847	for (tmp = above; tmp != NULL; tmp = tmp->above)	1613	for (tmp = above; tmp; tmp = tmp->above)
1848	if (tmp->type == PLAYER) {	1614	if (tmp->type == PLAYER)
		1615	{
1849	if (op->nrof)	1616	if (op->nrof)
1850	esrv_send_item(tmp, op);	1617	esrv_send_item (tmp, op);
1851	else	1618	else
1852	esrv_del_item(tmp->contr, op->count);	1619	esrv_del_item (tmp->contr, op->count);
1853	}	1620	}
1854	}	1621	}
1855		1622
1856	if (op->nrof) {	1623	if (op->nrof)
1857	return op;	1624	return op;
1858	} else {	1625	else
1859	free_object (op);	1626	{
		1627	op->destroy ();
1860	return NULL;	1628	return 0;
1861	}	1629	}
1862	}	1630	}
1863		1631
1864	/*	1632	/*
1865	* add_weight(object, weight) adds the specified weight to an object,	1633	* add_weight(object, weight) adds the specified weight to an object,
1866	* and also updates how much the environment(s) is/are carrying.	1634	* and also updates how much the environment(s) is/are carrying.
1867	*/	1635	*/
1868		1636	void
1869	void add_weight (object *op, signed long weight) {	1637	add_weight (object *op, signed long weight)
		1638	{
1870	while (op!=NULL) {	1639	while (op != NULL)
		1640	{
1871	if (op->type == CONTAINER) {	1641	if (op->type == CONTAINER)
1872	weight=(signed long)(weight*(100-op->stats.Str)/100);	1642	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1873	}	1643
1874	op->carrying+=weight;	1644	op->carrying += weight;
1875	op=op->env;	1645	op = op->env;
1876	}	1646	}
1877	}	1647	}
1878		1648
		1649	object *
		1650	insert_ob_in_ob (object *op, object *where)
		1651	{
		1652	if (!where)
		1653	{
		1654	char *dump = dump_object (op);
		1655	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1656	free (dump);
		1657	return op;
		1658	}
		1659
		1660	if (where->head_ () != where)
		1661	{
		1662	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1663	where = where->head;
		1664	}
		1665
		1666	return where->insert (op);
		1667	}
		1668
1879	/*	1669	/*
1880	* insert_ob_in_ob(op,environment):	1670	* env->insert (op)
1881	* This function inserts the object op in the linked list	1671	* This function inserts the object op in the linked list
1882	* inside the object environment.	1672	* inside the object environment.
1883	*	1673	*
1884	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1885	* the inventory at the last position or next to other objects of the same
1886	* type.
1887	* Frank: Now sorted by type, archetype and magic!
1888	*
1889	* The function returns now pointer to inserted item, and return value can	1674	* The function returns now pointer to inserted item, and return value can
1890	* be != op, if items are merged. -Tero	1675	* be != op, if items are merged. -Tero
1891	*/	1676	*/
1892		1677	object *
1893	object *insert_ob_in_ob(object *op,object *where) {	1678	object::insert (object *op)
		1679	{
1894	object *tmp, *otmp;	1680	object *tmp, *otmp;
1895		1681
1896	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1682	if (!QUERY_FLAG (op, FLAG_REMOVED))
1897	dump_object(op);	1683	op->remove ();
1898	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1684
1899	return op;
1900	}
1901	if(where==NULL) {
1902	dump_object(op);
1903	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1904	return op;
1905	}
1906	if (where->head) {
1907	LOG(llevDebug,
1908	"Warning: Tried to insert object wrong part of multipart object.\n");
1909	where = where->head;
1910	}
1911	if (op->more) {	1685	if (op->more)
		1686	{
1912	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1687	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1913	op->name, op->count);
1914	return op;	1688	return op;
1915	}	1689	}
		1690
1916	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1691	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1917	CLEAR_FLAG(op, FLAG_REMOVED);	1692	CLEAR_FLAG (op, FLAG_REMOVED);
1918	if(op->nrof) {	1693	if (op->nrof)
		1694	{
1919	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1695	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1920	if ( CAN_MERGE(tmp,op) ) {	1696	if (object::can_merge (tmp, op))
		1697	{
1921	/* return the original object and remove inserted object	1698	/* return the original object and remove inserted object
1922	(client needs the original object) */	1699	(client needs the original object) */
1923	tmp->nrof += op->nrof;	1700	tmp->nrof += op->nrof;
1924	/* Weight handling gets pretty funky. Since we are adding to	1701	/* Weight handling gets pretty funky. Since we are adding to
1925	* tmp->nrof, we need to increase the weight.	1702	* tmp->nrof, we need to increase the weight.
1926	*/	1703	*/
1927	add_weight (where, op->weight*op->nrof);	1704	add_weight (this, op->weight * op->nrof);
1928	SET_FLAG(op, FLAG_REMOVED);	1705	SET_FLAG (op, FLAG_REMOVED);
1929	free_object(op); /* free the inserted object */	1706	op->destroy (); /* free the inserted object */
1930	op = tmp;	1707	op = tmp;
1931	remove_ob (op); /* and fix old object's links */	1708	op->remove (); /* and fix old object's links */
1932	CLEAR_FLAG(op, FLAG_REMOVED);	1709	CLEAR_FLAG (op, FLAG_REMOVED);
1933	break;	1710	break;
1934	}	1711	}
1935		1712
1936	/* I assume combined objects have no inventory	1713	/* I assume combined objects have no inventory
1937	* We add the weight - this object could have just been removed	1714	* We add the weight - this object could have just been removed
1938	* (if it was possible to merge). calling remove_ob will subtract	1715	* (if it was possible to merge). calling remove_ob will subtract
1939	* the weight, so we need to add it in again, since we actually do	1716	* the weight, so we need to add it in again, since we actually do
1940	* the linking below	1717	* the linking below
1941	*/	1718	*/
1942	add_weight (where, op->weight*op->nrof);	1719	add_weight (this, op->weight * op->nrof);
		1720	}
1943	} else	1721	else
1944	add_weight (where, (op->weight+op->carrying));	1722	add_weight (this, (op->weight + op->carrying));
1945		1723
1946	otmp=is_player_inv(where);	1724	otmp = this->in_player ();
1947	if (otmp&&otmp->contr!=NULL) {	1725	if (otmp && otmp->contr)
1948	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1726	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1949	fix_player(otmp);	1727	otmp->update_stats ();
1950	}
1951		1728
1952	op->map=NULL;	1729	op->map = 0;
1953	op->env=where;	1730	op->env = this;
1954	op->above=NULL;	1731	op->above = 0;
1955	op->below=NULL;	1732	op->below = 0;
1956	op->x=0,op->y=0;	1733	op->x = 0, op->y = 0;
1957	op->ox=0,op->oy=0;
1958		1734
1959	/* reset the light list and los of the players on the map */	1735	/* reset the light list and los of the players on the map */
1960	if((op->glow_radius!=0)&&where->map)	1736	if ((op->glow_radius != 0) && map)
1961	{	1737	{
1962	#ifdef DEBUG_LIGHTS	1738	#ifdef DEBUG_LIGHTS
1963	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1739	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1964	op->name);
1965	#endif /* DEBUG_LIGHTS */	1740	#endif /* DEBUG_LIGHTS */
1966	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1741	if (map->darkness)
		1742	update_all_los (map, x, y);
1967	}	1743	}
1968		1744
1969	/* Client has no idea of ordering so lets not bother ordering it here.	1745	/* Client has no idea of ordering so lets not bother ordering it here.
1970	* It sure simplifies this function...	1746	* It sure simplifies this function...
1971	*/	1747	*/
1972	if (where->inv==NULL)	1748	if (!inv)
1973	where->inv=op;	1749	inv = op;
1974	else {	1750	else
		1751	{
1975	op->below = where->inv;	1752	op->below = inv;
1976	op->below->above = op;	1753	op->below->above = op;
1977	where->inv = op;	1754	inv = op;
1978	}	1755	}
		1756
		1757	INVOKE_OBJECT (INSERT, this);
		1758
1979	return op;	1759	return op;
1980	}	1760	}
1981		1761
1982	/*	1762	/*
1983	* Checks if any objects has a move_type that matches objects	1763	* Checks if any objects has a move_type that matches objects
…		…
1997	*	1777	*
1998	* MSW 2001-07-08: Check all objects on space, not just those below	1778	* MSW 2001-07-08: Check all objects on space, not just those below
1999	* object being inserted. insert_ob_in_map may not put new objects	1779	* object being inserted. insert_ob_in_map may not put new objects
2000	* on top.	1780	* on top.
2001	*/	1781	*/
2002		1782	int
2003	int check_move_on (object *op, object *originator)	1783	check_move_on (object *op, object *originator)
2004	{	1784	{
2005	object *tmp;	1785	object *tmp;
2006	tag_t tag;
2007	mapstruct *m=op->map;	1786	maptile *m = op->map;
2008	int x=op->x, y=op->y;	1787	int x = op->x, y = op->y;
		1788
2009	MoveType move_on, move_slow, move_block;	1789	MoveType move_on, move_slow, move_block;
2010		1790
2011	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1791	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2012	return 0;
2013
2014	tag = op->count;
2015
2016	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
2017	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
2018	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
2019
2020	/* if nothing on this space will slow op down or be applied,
2021	* no need to do checking below. have to make sure move_type
2022	* is set, as lots of objects don't have it set - we treat that
2023	* as walking.
2024	*/
2025	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
2026	return 0;
2027
2028	/* This is basically inverse logic of that below - basically,
2029	* if the object can avoid the move on or slow move, they do so,
2030	* but can't do it if the alternate movement they are using is
2031	* blocked. Logic on this seems confusing, but does seem correct.
2032	*/
2033	if ((op->move_type & ~move_on & ~move_block) != 0 &&
2034	(op->move_type & ~move_slow & ~move_block) != 0) return 0;
2035
2036	/* The objects have to be checked from top to bottom.
2037	* Hence, we first go to the top:
2038	*/
2039
2040	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&
2041	tmp->above!=NULL; tmp=tmp->above) {
2042	/* Trim the search when we find the first other spell effect
2043	* this helps performance so that if a space has 50 spell objects,
2044	* we don't need to check all of them.
2045	*/
2046	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;
2047	}
2048	for(;tmp!=NULL; tmp=tmp->below) {
2049	if (tmp == op) continue; /* Can't apply yourself */
2050
2051	/* Check to see if one of the movement types should be slowed down.
2052	* Second check makes sure that the movement types not being slowed
2053	* (~slow_move) is not blocked on this space - just because the
2054	* space doesn't slow down swimming (for example), if you can't actually
2055	* swim on that space, can't use it to avoid the penalty.
2056	*/
2057	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {
2058	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2059	((op->move_type & tmp->move_slow) &&
2060	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {
2061
2062	float diff;
2063
2064	diff = tmp->move_slow_penalty*FABS(op->speed);
2065	if (op->type == PLAYER) {
2066	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||
2067	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {
2068	diff /= 4.0;
2069	}
2070	}
2071	op->speed_left -= diff;
2072	}
2073	}
2074
2075	/* Basically same logic as above, except now for actual apply. */
2076	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2077	((op->move_type & tmp->move_on) &&
2078	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {
2079
2080	move_apply(tmp, op, originator);
2081	if (was_destroyed (op, tag))
2082	return 1;
2083
2084	/* what the person/creature stepped onto has moved the object
2085	* someplace new. Don't process any further - if we did,
2086	* have a feeling strange problems would result.
2087	*/
2088	if (op->map != m || op->x != x || op->y != y) return 0;
2089	}
2090	}
2091	return 0;	1792	return 0;
		1793
		1794	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1795	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		1796	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		1797
		1798	/* if nothing on this space will slow op down or be applied,
		1799	* no need to do checking below. have to make sure move_type
		1800	* is set, as lots of objects don't have it set - we treat that
		1801	* as walking.
		1802	*/
		1803	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		1804	return 0;
		1805
		1806	/* This is basically inverse logic of that below - basically,
		1807	* if the object can avoid the move on or slow move, they do so,
		1808	* but can't do it if the alternate movement they are using is
		1809	* blocked. Logic on this seems confusing, but does seem correct.
		1810	*/
		1811	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		1812	return 0;
		1813
		1814	/* The objects have to be checked from top to bottom.
		1815	* Hence, we first go to the top:
		1816	*/
		1817
		1818	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
		1819	{
		1820	/* Trim the search when we find the first other spell effect
		1821	* this helps performance so that if a space has 50 spell objects,
		1822	* we don't need to check all of them.
		1823	*/
		1824	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1825	break;
		1826	}
		1827
		1828	for (; tmp; tmp = tmp->below)
		1829	{
		1830	if (tmp == op)
		1831	continue; /* Can't apply yourself */
		1832
		1833	/* Check to see if one of the movement types should be slowed down.
		1834	* Second check makes sure that the movement types not being slowed
		1835	* (~slow_move) is not blocked on this space - just because the
		1836	* space doesn't slow down swimming (for example), if you can't actually
		1837	* swim on that space, can't use it to avoid the penalty.
		1838	*/
		1839	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1840	{
		1841	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		1842	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1843	{
		1844
		1845	float
		1846	diff = tmp->move_slow_penalty * fabs (op->speed);
		1847
		1848	if (op->type == PLAYER)
		1849	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		1850	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		1851	diff /= 4.0;
		1852
		1853	op->speed_left -= diff;
		1854	}
		1855	}
		1856
		1857	/* Basically same logic as above, except now for actual apply. */
		1858	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		1859	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		1860	{
		1861	move_apply (tmp, op, originator);
		1862
		1863	if (op->destroyed ())
		1864	return 1;
		1865
		1866	/* what the person/creature stepped onto has moved the object
		1867	* someplace new. Don't process any further - if we did,
		1868	* have a feeling strange problems would result.
		1869	*/
		1870	if (op->map != m || op->x != x || op->y != y)
		1871	return 0;
		1872	}
		1873	}
		1874
		1875	return 0;
2092	}	1876	}
2093		1877
2094	/*	1878	/*
2095	* present_arch(arch, map, x, y) searches for any objects with	1879	* present_arch(arch, map, x, y) searches for any objects with
2096	* a matching archetype at the given map and coordinates.	1880	* a matching archetype at the given map and coordinates.
2097	* The first matching object is returned, or NULL if none.	1881	* The first matching object is returned, or NULL if none.
2098	*/	1882	*/
2099		1883	object *
2100	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1884	present_arch (const archetype *at, maptile *m, int x, int y)
2101	object *tmp;	1885	{
2102	if(m==NULL || out_of_map(m,x,y)) {	1886	if (!m || out_of_map (m, x, y))
		1887	{
2103	LOG(llevError,"Present_arch called outside map.\n");	1888	LOG (llevError, "Present_arch called outside map.\n");
2104	return NULL;	1889	return NULL;
2105	}	1890	}
2106	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1891
		1892	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2107	if(tmp->arch == at)	1893	if (tmp->arch == at)
2108	return tmp;	1894	return tmp;
		1895
2109	return NULL;	1896	return NULL;
2110	}	1897	}
2111		1898
2112	/*	1899	/*
2113	* present(type, map, x, y) searches for any objects with	1900	* present(type, map, x, y) searches for any objects with
2114	* a matching type variable at the given map and coordinates.	1901	* a matching type variable at the given map and coordinates.
2115	* The first matching object is returned, or NULL if none.	1902	* The first matching object is returned, or NULL if none.
2116	*/	1903	*/
2117		1904	object *
2118	object *present(unsigned char type,mapstruct *m, int x,int y) {	1905	present (unsigned char type, maptile *m, int x, int y)
2119	object *tmp;	1906	{
2120	if(out_of_map(m,x,y)) {	1907	if (out_of_map (m, x, y))
		1908	{
2121	LOG(llevError,"Present called outside map.\n");	1909	LOG (llevError, "Present called outside map.\n");
2122	return NULL;	1910	return NULL;
2123	}	1911	}
2124	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1912
		1913	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2125	if(tmp->type==type)	1914	if (tmp->type == type)
2126	return tmp;	1915	return tmp;
		1916
2127	return NULL;	1917	return NULL;
2128	}	1918	}
2129		1919
2130	/*	1920	/*
2131	* present_in_ob(type, object) searches for any objects with	1921	* present_in_ob(type, object) searches for any objects with
2132	* a matching type variable in the inventory of the given object.	1922	* a matching type variable in the inventory of the given object.
2133	* The first matching object is returned, or NULL if none.	1923	* The first matching object is returned, or NULL if none.
2134	*/	1924	*/
2135		1925	object *
2136	object *present_in_ob(unsigned char type, const object *op) {	1926	present_in_ob (unsigned char type, const object *op)
2137	object *tmp;	1927	{
2138	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1928	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2139	if(tmp->type==type)	1929	if (tmp->type == type)
2140	return tmp;	1930	return tmp;
		1931
2141	return NULL;	1932	return NULL;
2142	}	1933	}
2143		1934
2144	/*	1935	/*
2145	* present_in_ob (type, str, object) searches for any objects with	1936	* present_in_ob (type, str, object) searches for any objects with
…		…
2153	* str is the string to match against. Note that we match against	1944	* str is the string to match against. Note that we match against
2154	* the object name, not the archetype name. this is so that the	1945	* the object name, not the archetype name. this is so that the
2155	* spell code can use one object type (force), but change it's name	1946	* spell code can use one object type (force), but change it's name
2156	* to be unique.	1947	* to be unique.
2157	*/	1948	*/
2158		1949	object *
2159	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1950	present_in_ob_by_name (int type, const char *str, const object *op)
2160	object *tmp;	1951	{
2161
2162	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1952	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2163	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1953	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2164	return tmp;	1954	return tmp;
2165	}	1955
2166	return NULL;	1956	return 0;
2167	}	1957	}
2168		1958
2169	/*	1959	/*
2170	* present_arch_in_ob(archetype, object) searches for any objects with	1960	* present_arch_in_ob(archetype, object) searches for any objects with
2171	* a matching archetype in the inventory of the given object.	1961	* a matching archetype in the inventory of the given object.
2172	* The first matching object is returned, or NULL if none.	1962	* The first matching object is returned, or NULL if none.
2173	*/	1963	*/
2174		1964	object *
2175	object *present_arch_in_ob(const archetype *at, const object *op) {	1965	present_arch_in_ob (const archetype *at, const object *op)
2176	object *tmp;	1966	{
2177	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1967	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2178	if( tmp->arch == at)	1968	if (tmp->arch == at)
2179	return tmp;	1969	return tmp;
		1970
2180	return NULL;	1971	return NULL;
2181	}	1972	}
2182		1973
2183	/*	1974	/*
2184	* activate recursively a flag on an object inventory	1975	* activate recursively a flag on an object inventory
2185	*/	1976	*/
		1977	void
2186	void flag_inv(object*op, int flag){	1978	flag_inv (object *op, int flag)
2187	object *tmp;	1979	{
2188	if(op->inv)	1980	if (op->inv)
2189	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1981	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1982	{
2190	SET_FLAG(tmp, flag);	1983	SET_FLAG (tmp, flag);
2191	flag_inv(tmp,flag);	1984	flag_inv (tmp, flag);
2192	}	1985	}
		1986	}
		1987
2193	}/*	1988	/*
2194	* desactivate recursively a flag on an object inventory	1989	* deactivate recursively a flag on an object inventory
2195	*/	1990	*/
		1991	void
2196	void unflag_inv(object*op, int flag){	1992	unflag_inv (object *op, int flag)
2197	object *tmp;	1993	{
2198	if(op->inv)	1994	if (op->inv)
2199	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1995	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1996	{
2200	CLEAR_FLAG(tmp, flag);	1997	CLEAR_FLAG (tmp, flag);
2201	unflag_inv(tmp,flag);	1998	unflag_inv (tmp, flag);
2202	}	1999	}
2203	}
2204
2205	/*
2206	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2207	* all it's inventory (recursively).
2208	* If checksums are used, a player will get set_cheat called for
2209	* him/her-self and all object carried by a call to this function.
2210	*/
2211
2212	void set_cheat(object *op) {
2213	SET_FLAG(op, FLAG_WAS_WIZ);
2214	flag_inv(op, FLAG_WAS_WIZ);
2215	}	2000	}
2216		2001
2217	/*	2002	/*
2218	* find_free_spot(object, map, x, y, start, stop) will search for	2003	* find_free_spot(object, map, x, y, start, stop) will search for
2219	* a spot at the given map and coordinates which will be able to contain	2004	* a spot at the given map and coordinates which will be able to contain
…		…
2233	* because arch_blocked (now ob_blocked) needs to know the movement type	2018	* because arch_blocked (now ob_blocked) needs to know the movement type
2234	* to know if the space in question will block the object. We can't use	2019	* to know if the space in question will block the object. We can't use
2235	* the archetype because that isn't correct if the monster has been	2020	* the archetype because that isn't correct if the monster has been
2236	* customized, changed states, etc.	2021	* customized, changed states, etc.
2237	*/	2022	*/
2238		2023	int
2239	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2024	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2025	{
2240	int i,index=0, flag;	2026	int index = 0, flag;
2241	static int altern[SIZEOFFREE];	2027	int altern[SIZEOFFREE];
2242		2028
2243	for(i=start;i<stop;i++) {	2029	for (int i = start; i < stop; i++)
		2030	{
2244	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2031	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2245	if(!flag)	2032	if (!flag)
2246	altern[index++]=i;	2033	altern [index++] = i;
2247		2034
2248	/* Basically, if we find a wall on a space, we cut down the search size.	2035	/* Basically, if we find a wall on a space, we cut down the search size.
2249	* In this way, we won't return spaces that are on another side of a wall.	2036	* In this way, we won't return spaces that are on another side of a wall.
2250	* This mostly work, but it cuts down the search size in all directions -	2037	* This mostly work, but it cuts down the search size in all directions -
2251	* if the space being examined only has a wall to the north and empty	2038	* if the space being examined only has a wall to the north and empty
2252	* spaces in all the other directions, this will reduce the search space	2039	* spaces in all the other directions, this will reduce the search space
2253	* to only the spaces immediately surrounding the target area, and	2040	* to only the spaces immediately surrounding the target area, and
2254	* won't look 2 spaces south of the target space.	2041	* won't look 2 spaces south of the target space.
2255	*/	2042	*/
2256	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2043	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2257	stop=maxfree[i];	2044	stop = maxfree[i];
2258	}	2045	}
2259	if(!index) return -1;
2260	return altern[RANDOM()%index];
2261	}
2262		2046
		2047	if (!index)
		2048	return -1;
		2049
		2050	return altern [rndm (index)];
		2051	}
		2052
2263	/*	2053	/*
2264	* find_first_free_spot(archetype, mapstruct, x, y) works like	2054	* find_first_free_spot(archetype, maptile, x, y) works like
2265	* find_free_spot(), but it will search max number of squares.	2055	* find_free_spot(), but it will search max number of squares.
2266	* But it will return the first available spot, not a random choice.	2056	* But it will return the first available spot, not a random choice.
2267	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2057	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2268	*/	2058	*/
2269		2059	int
2270	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2060	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2271	int i;	2061	{
2272	for(i=0;i<SIZEOFFREE;i++) {	2062	for (int i = 0; i < SIZEOFFREE; i++)
2273	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2063	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2274	return i;	2064	return i;
2275	}	2065
2276	return -1;	2066	return -1;
2277	}	2067	}
2278		2068
2279	/*	2069	/*
2280	* The function permute(arr, begin, end) randomly reorders the array	2070	* The function permute(arr, begin, end) randomly reorders the array
2281	* arr[begin..end-1].	2071	* arr[begin..end-1].
		2072	* now uses a fisher-yates shuffle, old permute was broken
2282	*/	2073	*/
		2074	static void
2283	static void permute(int *arr, int begin, int end)	2075	permute (int *arr, int begin, int end)
2284	{	2076	{
2285	int i, j, tmp, len;	2077	arr += begin;
		2078	end -= begin;
2286		2079
2287	len = end-begin;	2080	while (--end)
2288	for(i = begin; i < end; i++)	2081	swap (arr [end], arr [rndm (end + 1)]);
2289	{
2290	j = begin+RANDOM()%len;
2291
2292	tmp = arr[i];
2293	arr[i] = arr[j];
2294	arr[j] = tmp;
2295	}
2296	}	2082	}
2297		2083
2298	/* new function to make monster searching more efficient, and effective!	2084	/* new function to make monster searching more efficient, and effective!
2299	* This basically returns a randomized array (in the passed pointer) of	2085	* This basically returns a randomized array (in the passed pointer) of
2300	* the spaces to find monsters. In this way, it won't always look for	2086	* the spaces to find monsters. In this way, it won't always look for
2301	* monsters to the north first. However, the size of the array passed	2087	* monsters to the north first. However, the size of the array passed
2302	* covers all the spaces, so within that size, all the spaces within	2088	* covers all the spaces, so within that size, all the spaces within
2303	* the 3x3 area will be searched, just not in a predictable order.	2089	* the 3x3 area will be searched, just not in a predictable order.
2304	*/	2090	*/
		2091	void
2305	void get_search_arr(int *search_arr)	2092	get_search_arr (int *search_arr)
2306	{	2093	{
2307	int i;	2094	int i;
2308		2095
2309	for(i = 0; i < SIZEOFFREE; i++)	2096	for (i = 0; i < SIZEOFFREE; i++)
2310	{
2311	search_arr[i] = i;	2097	search_arr[i] = i;
2312	}
2313		2098
2314	permute(search_arr, 1, SIZEOFFREE1+1);	2099	permute (search_arr, 1, SIZEOFFREE1 + 1);
2315	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2100	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2316	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2101	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2317	}	2102	}
2318		2103
2319	/*	2104	/*
2320	* find_dir(map, x, y, exclude) will search some close squares in the	2105	* find_dir(map, x, y, exclude) will search some close squares in the
2321	* given map at the given coordinates for live objects.	2106	* given map at the given coordinates for live objects.
…		…
2326	* Perhaps incorrectly, but I'm making the assumption that exclude	2111	* Perhaps incorrectly, but I'm making the assumption that exclude
2327	* is actually want is going to try and move there. We need this info	2112	* is actually want is going to try and move there. We need this info
2328	* because we have to know what movement the thing looking to move	2113	* because we have to know what movement the thing looking to move
2329	* there is capable of.	2114	* there is capable of.
2330	*/	2115	*/
2331		2116	int
2332	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2117	find_dir (maptile *m, int x, int y, object *exclude)
		2118	{
2333	int i,max=SIZEOFFREE, mflags;	2119	int i, max = SIZEOFFREE, mflags;
		2120
2334	sint16 nx, ny;	2121	sint16 nx, ny;
2335	object *tmp;	2122	object *tmp;
2336	mapstruct *mp;	2123	maptile *mp;
		2124
2337	MoveType blocked, move_type;	2125	MoveType blocked, move_type;
2338		2126
2339	if (exclude && exclude->head) {	2127	if (exclude && exclude->head_ () != exclude)
		2128	{
2340	exclude = exclude->head;	2129	exclude = exclude->head;
2341	move_type = exclude->move_type;	2130	move_type = exclude->move_type;
2342	} else {	2131	}
		2132	else
		2133	{
2343	/* If we don't have anything, presume it can use all movement types. */	2134	/* If we don't have anything, presume it can use all movement types. */
2344	move_type=MOVE_ALL;	2135	move_type = MOVE_ALL;
		2136	}
		2137
		2138	for (i = 1; i < max; i++)
2345	}	2139	{
2346		2140	mp = m;
2347	for(i=1;i<max;i++) {
2348	mp = m;
2349	nx = x + freearr_x[i];	2141	nx = x + freearr_x[i];
2350	ny = y + freearr_y[i];	2142	ny = y + freearr_y[i];
2351		2143
2352	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2144	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2145
2353	if (mflags & P_OUT_OF_MAP) {	2146	if (mflags & P_OUT_OF_MAP)
2354	max = maxfree[i];	2147	max = maxfree[i];
2355	} else {	2148	else
2356	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2149	{
		2150	mapspace &ms = mp->at (nx, ny);
2357		2151
		2152	blocked = ms.move_block;
		2153
2358	if ((move_type & blocked) == move_type) {	2154	if ((move_type & blocked) == move_type)
2359	max=maxfree[i];	2155	max = maxfree[i];
2360	} else if (mflags & P_IS_ALIVE) {	2156	else if (mflags & P_IS_ALIVE)
2361	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2157	{
2362	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2158	for (tmp = ms.bot; tmp; tmp = tmp->above)
2363	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2159	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2364	break;	2160	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2365	}	2161	break;
2366	}	2162
2367	if(tmp) {	2163	if (tmp)
2368	return freedir[i];	2164	return freedir[i];
2369	}	2165	}
		2166	}
2370	}	2167	}
2371	}	2168
2372	}
2373	return 0;	2169	return 0;
2374	}	2170	}
2375		2171
2376	/*	2172	/*
2377	* distance(object 1, object 2) will return the square of the	2173	* distance(object 1, object 2) will return the square of the
2378	* distance between the two given objects.	2174	* distance between the two given objects.
2379	*/	2175	*/
2380		2176	int
2381	int distance(const object *ob1, const object *ob2) {	2177	distance (const object *ob1, const object *ob2)
2382	int i;	2178	{
2383	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2179	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2384	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2385	return i;
2386	}	2180	}
2387		2181
2388	/*	2182	/*
2389	* find_dir_2(delta-x,delta-y) will return a direction in which	2183	* find_dir_2(delta-x,delta-y) will return a direction in which
2390	* an object which has subtracted the x and y coordinates of another	2184	* an object which has subtracted the x and y coordinates of another
2391	* object, needs to travel toward it.	2185	* object, needs to travel toward it.
2392	*/	2186	*/
2393		2187	int
2394	int find_dir_2(int x, int y) {	2188	find_dir_2 (int x, int y)
		2189	{
2395	int q;	2190	int q;
2396		2191
2397	if(y)	2192	if (y)
2398	q=x*100/y;	2193	q = x * 100 / y;
2399	else if (x)	2194	else if (x)
2400	q= -300*x;	2195	q = -300 * x;
2401	else	2196	else
2402	return 0;	2197	return 0;
2403		2198
2404	if(y>0) {	2199	if (y > 0)
		2200	{
2405	if(q < -242)	2201	if (q < -242)
2406	return 3 ;	2202	return 3;
2407	if (q < -41)	2203	if (q < -41)
2408	return 2 ;	2204	return 2;
2409	if (q < 41)	2205	if (q < 41)
2410	return 1 ;	2206	return 1;
2411	if (q < 242)	2207	if (q < 242)
2412	return 8 ;	2208	return 8;
2413	return 7 ;	2209	return 7;
2414	}	2210	}
2415		2211
2416	if (q < -242)	2212	if (q < -242)
2417	return 7 ;	2213	return 7;
2418	if (q < -41)	2214	if (q < -41)
2419	return 6 ;	2215	return 6;
2420	if (q < 41)	2216	if (q < 41)
2421	return 5 ;	2217	return 5;
2422	if (q < 242)	2218	if (q < 242)
2423	return 4 ;	2219	return 4;
2424		2220
2425	return 3 ;	2221	return 3;
2426	}
2427
2428	/*
2429	* absdir(int): Returns a number between 1 and 8, which represent
2430	* the "absolute" direction of a number (it actually takes care of
2431	* "overflow" in previous calculations of a direction).
2432	*/
2433
2434	int absdir(int d) {
2435	while(d<1) d+=8;
2436	while(d>8) d-=8;
2437	return d;
2438	}	2222	}
2439		2223
2440	/*	2224	/*
2441	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2225	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2442	* between two directions (which are expected to be absolute (see absdir())	2226	* between two directions (which are expected to be absolute (see absdir())
2443	*/	2227	*/
2444		2228	int
2445	int dirdiff(int dir1, int dir2) {	2229	dirdiff (int dir1, int dir2)
		2230	{
2446	int d;	2231	int d;
		2232
2447	d = abs(dir1 - dir2);	2233	d = abs (dir1 - dir2);
2448	if(d>4)	2234	if (d > 4)
2449	d = 8 - d;	2235	d = 8 - d;
		2236
2450	return d;	2237	return d;
2451	}	2238	}
2452		2239
2453	/* peterm:	2240	/* peterm:
2454	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2241	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2457	* This basically means that if direction is 15, then it could either go	2244	* This basically means that if direction is 15, then it could either go
2458	* direction 4, 14, or 16 to get back to where we are.	2245	* direction 4, 14, or 16 to get back to where we are.
2459	* Moved from spell_util.c to object.c with the other related direction	2246	* Moved from spell_util.c to object.c with the other related direction
2460	* functions.	2247	* functions.
2461	*/	2248	*/
2462
2463	int reduction_dir[SIZEOFFREE][3] = {	2249	int reduction_dir[SIZEOFFREE][3] = {
2464	{0,0,0}, /* 0 */	2250	{0, 0, 0}, /* 0 */
2465	{0,0,0}, /* 1 */	2251	{0, 0, 0}, /* 1 */
2466	{0,0,0}, /* 2 */	2252	{0, 0, 0}, /* 2 */
2467	{0,0,0}, /* 3 */	2253	{0, 0, 0}, /* 3 */
2468	{0,0,0}, /* 4 */	2254	{0, 0, 0}, /* 4 */
2469	{0,0,0}, /* 5 */	2255	{0, 0, 0}, /* 5 */
2470	{0,0,0}, /* 6 */	2256	{0, 0, 0}, /* 6 */
2471	{0,0,0}, /* 7 */	2257	{0, 0, 0}, /* 7 */
2472	{0,0,0}, /* 8 */	2258	{0, 0, 0}, /* 8 */
2473	{8,1,2}, /* 9 */	2259	{8, 1, 2}, /* 9 */
2474	{1,2,-1}, /* 10 */	2260	{1, 2, -1}, /* 10 */
2475	{2,10,12}, /* 11 */	2261	{2, 10, 12}, /* 11 */
2476	{2,3,-1}, /* 12 */	2262	{2, 3, -1}, /* 12 */
2477	{2,3,4}, /* 13 */	2263	{2, 3, 4}, /* 13 */
2478	{3,4,-1}, /* 14 */	2264	{3, 4, -1}, /* 14 */
2479	{4,14,16}, /* 15 */	2265	{4, 14, 16}, /* 15 */
2480	{5,4,-1}, /* 16 */	2266	{5, 4, -1}, /* 16 */
2481	{4,5,6}, /* 17 */	2267	{4, 5, 6}, /* 17 */
2482	{6,5,-1}, /* 18 */	2268	{6, 5, -1}, /* 18 */
2483	{6,20,18}, /* 19 */	2269	{6, 20, 18}, /* 19 */
2484	{7,6,-1}, /* 20 */	2270	{7, 6, -1}, /* 20 */
2485	{6,7,8}, /* 21 */	2271	{6, 7, 8}, /* 21 */
2486	{7,8,-1}, /* 22 */	2272	{7, 8, -1}, /* 22 */
2487	{8,22,24}, /* 23 */	2273	{8, 22, 24}, /* 23 */
2488	{8,1,-1}, /* 24 */	2274	{8, 1, -1}, /* 24 */
2489	{24,9,10}, /* 25 */	2275	{24, 9, 10}, /* 25 */
2490	{9,10,-1}, /* 26 */	2276	{9, 10, -1}, /* 26 */
2491	{10,11,-1}, /* 27 */	2277	{10, 11, -1}, /* 27 */
2492	{27,11,29}, /* 28 */	2278	{27, 11, 29}, /* 28 */
2493	{11,12,-1}, /* 29 */	2279	{11, 12, -1}, /* 29 */
2494	{12,13,-1}, /* 30 */	2280	{12, 13, -1}, /* 30 */
2495	{12,13,14}, /* 31 */	2281	{12, 13, 14}, /* 31 */
2496	{13,14,-1}, /* 32 */	2282	{13, 14, -1}, /* 32 */
2497	{14,15,-1}, /* 33 */	2283	{14, 15, -1}, /* 33 */
2498	{33,15,35}, /* 34 */	2284	{33, 15, 35}, /* 34 */
2499	{16,15,-1}, /* 35 */	2285	{16, 15, -1}, /* 35 */
2500	{17,16,-1}, /* 36 */	2286	{17, 16, -1}, /* 36 */
2501	{18,17,16}, /* 37 */	2287	{18, 17, 16}, /* 37 */
2502	{18,17,-1}, /* 38 */	2288	{18, 17, -1}, /* 38 */
2503	{18,19,-1}, /* 39 */	2289	{18, 19, -1}, /* 39 */
2504	{41,19,39}, /* 40 */	2290	{41, 19, 39}, /* 40 */
2505	{19,20,-1}, /* 41 */	2291	{19, 20, -1}, /* 41 */
2506	{20,21,-1}, /* 42 */	2292	{20, 21, -1}, /* 42 */
2507	{20,21,22}, /* 43 */	2293	{20, 21, 22}, /* 43 */
2508	{21,22,-1}, /* 44 */	2294	{21, 22, -1}, /* 44 */
2509	{23,22,-1}, /* 45 */	2295	{23, 22, -1}, /* 45 */
2510	{45,47,23}, /* 46 */	2296	{45, 47, 23}, /* 46 */
2511	{23,24,-1}, /* 47 */	2297	{23, 24, -1}, /* 47 */
2512	{24,9,-1}}; /* 48 */	2298	{24, 9, -1}
		2299	}; /* 48 */
2513		2300
2514	/* Recursive routine to step back and see if we can	2301	/* Recursive routine to step back and see if we can
2515	* find a path to that monster that we found. If not,	2302	* find a path to that monster that we found. If not,
2516	* we don't bother going toward it. Returns 1 if we	2303	* we don't bother going toward it. Returns 1 if we
2517	* can see a direct way to get it	2304	* can see a direct way to get it
2518	* Modified to be map tile aware -.MSW	2305	* Modified to be map tile aware -.MSW
2519	*/	2306	*/
2520		2307	int
2521
2522	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2308	can_see_monsterP (maptile *m, int x, int y, int dir)
		2309	{
2523	sint16 dx, dy;	2310	sint16 dx, dy;
2524	int mflags;	2311	int mflags;
2525		2312
		2313	if (dir < 0)
2526	if(dir<0) return 0; /* exit condition: invalid direction */	2314	return 0; /* exit condition: invalid direction */
2527		2315
2528	dx = x + freearr_x[dir];	2316	dx = x + freearr_x[dir];
2529	dy = y + freearr_y[dir];	2317	dy = y + freearr_y[dir];
2530		2318
2531	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2319	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2532		2320
2533	/* This functional arguably was incorrect before - it was	2321	/* This functional arguably was incorrect before - it was
2534	* checking for P_WALL - that was basically seeing if	2322	* checking for P_WALL - that was basically seeing if
2535	* we could move to the monster - this is being more	2323	* we could move to the monster - this is being more
2536	* literal on if we can see it. To know if we can actually	2324	* literal on if we can see it. To know if we can actually
2537	* move to the monster, we'd need the monster passed in or	2325	* move to the monster, we'd need the monster passed in or
2538	* at least its move type.	2326	* at least its move type.
2539	*/	2327	*/
2540	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2328	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2329	return 0;
2541		2330
2542	/* yes, can see. */	2331	/* yes, can see. */
2543	if(dir < 9) return 1;	2332	if (dir < 9)
		2333	return 1;
		2334
2544	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2335	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2545	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2336	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2546	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2337	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2547	}	2338	}
2548		2339
2549
2550
2551	/*	2340	/*
2552	* can_pick(picker, item): finds out if an object is possible to be	2341	* can_pick(picker, item): finds out if an object is possible to be
2553	* picked up by the picker. Returnes 1 if it can be	2342	* picked up by the picker. Returnes 1 if it can be
2554	* picked up, otherwise 0.	2343	* picked up, otherwise 0.
2555	*	2344	*
…		…
2557	* core dumps if they do.	2346	* core dumps if they do.
2558	*	2347	*
2559	* Add a check so we can't pick up invisible objects (0.93.8)	2348	* Add a check so we can't pick up invisible objects (0.93.8)
2560	*/	2349	*/
2561		2350
		2351	int
2562	int can_pick(const object *who, const object *item) {	2352	can_pick (const object *who, const object *item)
		2353	{
2563	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2354	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2564	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2355	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2565	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2356	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2566	(who->type==PLAYER||item->weight<who->weight/3));
2567	}	2357	}
2568
2569		2358
2570	/*	2359	/*
2571	* create clone from object to another	2360	* create clone from object to another
2572	*/	2361	*/
		2362	object *
2573	object *object_create_clone (object *asrc) {	2363	object_create_clone (object *asrc)
		2364	{
2574	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2365	object *dst = 0, *tmp, *src, *prev, *item;
2575		2366
2576	if(!asrc) return NULL;	2367	if (!asrc)
2577	src = asrc;	2368	return 0;
2578	if(src->head)	2369
2579	src = src->head;	2370	src = asrc->head_ ();
2580		2371
2581	prev = NULL;	2372	prev = 0;
2582	for(part = src; part; part = part->more) {	2373	for (object *part = src; part; part = part->more)
2583	tmp = get_object();	2374	{
2584	copy_object(part,tmp);	2375	tmp = part->clone ();
2585	tmp->x -= src->x;	2376	tmp->x -= src->x;
2586	tmp->y -= src->y;	2377	tmp->y -= src->y;
		2378
2587	if(!part->head) {	2379	if (!part->head)
		2380	{
2588	dst = tmp;	2381	dst = tmp;
2589	tmp->head = NULL;
2590	} else {
2591	tmp->head = dst;	2382	tmp->head = 0;
2592	}	2383	}
		2384	else
		2385	tmp->head = dst;
		2386
2593	tmp->more = NULL;	2387	tmp->more = 0;
		2388
2594	if(prev)	2389	if (prev)
2595	prev->more = tmp;	2390	prev->more = tmp;
		2391
2596	prev = tmp;	2392	prev = tmp;
2597	}	2393	}
2598	/*** copy inventory ***/	2394
2599	for(item = src->inv; item; item = item->below) {	2395	for (item = src->inv; item; item = item->below)
2600	(void) insert_ob_in_ob(object_create_clone(item),dst);	2396	insert_ob_in_ob (object_create_clone (item), dst);
2601	}
2602		2397
2603	return dst;	2398	return dst;
2604	}
2605
2606	/* return true if the object was destroyed, 0 otherwise */
2607	int was_destroyed (const object *op, tag_t old_tag)
2608	{
2609	/* checking for FLAG_FREED isn't necessary, but makes this function more
2610	* robust */
2611	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2612	}
2613
2614	/* GROS - Creates an object using a string representing its content. */
2615	/* Basically, we save the content of the string to a temp file, then call */
2616	/* load_object on it. I admit it is a highly inefficient way to make things, */
2617	/* but it was simple to make and allows reusing the load_object function. */
2618	/* Remember not to use load_object_str in a time-critical situation. */
2619	/* Also remember that multiparts objects are not supported for now. */
2620
2621	object* load_object_str(const char *obstr)
2622	{
2623	object *op;
2624	FILE *tempfile;
2625	char filename[MAX_BUF];
2626	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);
2627	tempfile=fopen(filename,"w");
2628	if (tempfile == NULL)
2629	{
2630	LOG(llevError,"Error - Unable to access load object temp file\n");
2631	return NULL;
2632	};
2633	fprintf(tempfile,obstr);
2634	fclose(tempfile);
2635
2636	op=get_object();
2637
2638	tempfile=fopen(filename,"r");
2639	if (tempfile == NULL)
2640	{
2641	LOG(llevError,"Error - Unable to read object temp file\n");
2642	return NULL;
2643	};
2644	object_thawer thawer (tempfile);
2645	load_object(thawer,op,LO_NEWFILE,0);
2646	LOG(llevDebug," load str completed, object=%s\n",op->name);
2647	CLEAR_FLAG(op,FLAG_REMOVED);
2648	fclose(tempfile);
2649	return op;
2650	}	2399	}
2651		2400
2652	/* This returns the first object in who's inventory that	2401	/* This returns the first object in who's inventory that
2653	* has the same type and subtype match.	2402	* has the same type and subtype match.
2654	* returns NULL if no match.	2403	* returns NULL if no match.
2655	*/	2404	*/
		2405	object *
2656	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2406	find_obj_by_type_subtype (const object *who, int type, int subtype)
2657	{	2407	{
2658	object *tmp;
2659
2660	for (tmp=who->inv; tmp; tmp=tmp->below)	2408	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2661	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2409	if (tmp->type == type && tmp->subtype == subtype)
		2410	return tmp;
2662		2411
2663	return NULL;	2412	return 0;
2664	}	2413	}
2665		2414
2666	/* If ob has a field named key, return the link from the list,	2415	/* If ob has a field named key, return the link from the list,
2667	* otherwise return NULL.	2416	* otherwise return NULL.
2668	*	2417	*
2669	* key must be a passed in shared string - otherwise, this won't	2418	* key must be a passed in shared string - otherwise, this won't
2670	* do the desired thing.	2419	* do the desired thing.
2671	*/	2420	*/
		2421	key_value *
2672	key_value * get_ob_key_link(const object * ob, const char * key) {	2422	get_ob_key_link (const object *ob, const char *key)
2673	key_value * link;	2423	{
2674
2675	for (link = ob->key_values; link != NULL; link = link->next) {	2424	for (key_value *link = ob->key_values; link; link = link->next)
2676	if (link->key == key) {	2425	if (link->key == key)
2677	return link;	2426	return link;
2678	}	2427
2679	}	2428	return 0;
2680		2429	}
2681	return NULL;
2682	}
2683		2430
2684	/*	2431	/*
2685	* Returns the value of op has an extra_field for key, or NULL.	2432	* Returns the value of op has an extra_field for key, or NULL.
2686	*	2433	*
2687	* The argument doesn't need to be a shared string.	2434	* The argument doesn't need to be a shared string.
2688	*	2435	*
2689	* The returned string is shared.	2436	* The returned string is shared.
2690	*/	2437	*/
		2438	const char *
2691	const char * get_ob_key_value(const object * op, const char * const key) {	2439	get_ob_key_value (const object *op, const char *const key)
		2440	{
2692	key_value * link;	2441	key_value *link;
2693	const char * canonical_key;	2442	shstr_cmp canonical_key (key);
		2443
		2444	if (!canonical_key)
2694		2445	{
2695	canonical_key = find_string(key);
2696
2697	if (canonical_key == NULL) {
2698	/* 1. There being a field named key on any object	2446	/* 1. There being a field named key on any object
2699	* implies there'd be a shared string to find.	2447	* implies there'd be a shared string to find.
2700	* 2. Since there isn't, no object has this field.	2448	* 2. Since there isn't, no object has this field.
2701	* 3. Therefore, *this* object doesn't have this field.	2449	* 3. Therefore, *this* object doesn't have this field.
2702	*/	2450	*/
2703	return NULL;	2451	return 0;
2704	}	2452	}
2705		2453
2706	/* This is copied from get_ob_key_link() above -	2454	/* This is copied from get_ob_key_link() above -
2707	* only 4 lines, and saves the function call overhead.	2455	* only 4 lines, and saves the function call overhead.
2708	*/	2456	*/
2709	for (link = op->key_values; link != NULL; link = link->next) {	2457	for (link = op->key_values; link; link = link->next)
2710	if (link->key == canonical_key) {	2458	if (link->key == canonical_key)
2711	return link->value;	2459	return link->value;
2712	}
2713	}
2714	return NULL;
2715	}
2716		2460
		2461	return 0;
		2462	}
2717		2463
2718	/*	2464	/*
2719	* Updates the canonical_key in op to value.	2465	* Updates the canonical_key in op to value.
2720	*	2466	*
2721	* canonical_key is a shared string (value doesn't have to be).	2467	* canonical_key is a shared string (value doesn't have to be).
…		…
2723	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2469	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2724	* keys.	2470	* keys.
2725	*	2471	*
2726	* Returns TRUE on success.	2472	* Returns TRUE on success.
2727	*/	2473	*/
		2474	int
2728	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2475	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2476	{
2729	key_value * field = NULL, *last=NULL;	2477	key_value *field = NULL, *last = NULL;
2730		2478
2731	for (field=op->key_values; field != NULL; field=field->next) {	2479	for (field = op->key_values; field != NULL; field = field->next)
2732	if (field->key != canonical_key) {
2733	last = field;
2734	continue;
2735	}
2736		2480	{
2737	if (field->value) FREE_AND_CLEAR_STR(field->value);	2481	if (field->key != canonical_key)
2738	if (value)	2482	{
2739	field->value = add_string(value);	2483	last = field;
2740	else {	2484	continue;
		2485	}
		2486
		2487	if (value)
		2488	field->value = value;
		2489	else
		2490	{
2741	/* Basically, if the archetype has this key set,	2491	/* Basically, if the archetype has this key set,
2742	* we need to store the null value so when we save	2492	* we need to store the null value so when we save
2743	* it, we save the empty value so that when we load,	2493	* it, we save the empty value so that when we load,
2744	* we get this value back again.	2494	* we get this value back again.
2745	*/	2495	*/
2746	if (get_ob_key_link(&op->arch->clone, canonical_key))	2496	if (get_ob_key_link (op->arch, canonical_key))
2747	field->value = NULL;	2497	field->value = 0;
2748	else {	2498	else
2749	/* Delete this link */	2499	{
2750	if (field->key) FREE_AND_CLEAR_STR(field->key);	2500	if (last)
2751	if (field->value) FREE_AND_CLEAR_STR(field->value);	2501	last->next = field->next;
2752	if (last) last->next = field->next;	2502	else
2753	else op->key_values = field->next;	2503	op->key_values = field->next;
2754	free(field);	2504
2755	}	2505	delete field;
2756	}	2506	}
		2507	}
2757	return TRUE;	2508	return TRUE;
2758	}	2509	}
2759	/* IF we get here, key doesn't exist */	2510	/* IF we get here, key doesn't exist */
2760		2511
2761	/* No field, we'll have to add it. */	2512	/* No field, we'll have to add it. */
2762		2513
2763	if (!add_key) {	2514	if (!add_key)
2764	return FALSE;	2515	return FALSE;
2765	}	2516
2766	/* There isn't any good reason to store a null	2517	/* There isn't any good reason to store a null
2767	* value in the key/value list. If the archetype has	2518	* value in the key/value list. If the archetype has
2768	* this key, then we should also have it, so shouldn't	2519	* this key, then we should also have it, so shouldn't
2769	* be here. If user wants to store empty strings,	2520	* be here. If user wants to store empty strings,
2770	* should pass in ""	2521	* should pass in ""
2771	*/	2522	*/
2772	if (value == NULL) return TRUE;	2523	if (value == NULL)
2773
2774	field = (key_value *) malloc(sizeof(key_value));
2775
2776	field->key = add_refcount(canonical_key);
2777	field->value = add_string(value);
2778	/* Usual prepend-addition. */
2779	field->next = op->key_values;
2780	op->key_values = field;
2781
2782	return TRUE;	2524	return TRUE;
		2525
		2526	field = new key_value;
		2527
		2528	field->key = canonical_key;
		2529	field->value = value;
		2530	/* Usual prepend-addition. */
		2531	field->next = op->key_values;
		2532	op->key_values = field;
		2533
		2534	return TRUE;
2783	}	2535	}
2784		2536
2785	/*	2537	/*
2786	* Updates the key in op to value.	2538	* Updates the key in op to value.
2787	*	2539	*
…		…
2789	* and not add new ones.	2541	* and not add new ones.
2790	* In general, should be little reason FALSE is ever passed in for add_key	2542	* In general, should be little reason FALSE is ever passed in for add_key
2791	*	2543	*
2792	* Returns TRUE on success.	2544	* Returns TRUE on success.
2793	*/	2545	*/
		2546	int
2794	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2547	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2795	const char * canonical_key = NULL;	2548	{
2796	int floating_ref = FALSE;	2549	shstr key_ (key);
2797	int ret;	2550
		2551	return set_ob_key_value_s (op, key_, value, add_key);
		2552	}
		2553
		2554	object::depth_iterator::depth_iterator (object *container)
		2555	: iterator_base (container)
		2556	{
		2557	while (item->inv)
		2558	item = item->inv;
		2559	}
		2560
		2561	void
		2562	object::depth_iterator::next ()
		2563	{
		2564	if (item->below)
2798		2565	{
2799	/* HACK This mess is to make sure set_ob_value() passes a shared string	2566	item = item->below;
2800	* to get_ob_key_link(), without leaving a leaked refcount.	2567
2801	*/	2568	while (item->inv)
		2569	item = item->inv;
2802		2570	}
2803	canonical_key = find_string(key);	2571	else
2804	if (canonical_key == NULL) {	2572	item = item->env;
2805	canonical_key = add_string(key);	2573	}
2806	floating_ref = TRUE;	2574
2807	}	2575	const char *
		2576	object::flag_desc (char *desc, int len) const
		2577	{
		2578	char *p = desc;
		2579	bool first = true;
		2580
		2581	*p = 0;
		2582
		2583	for (int i = 0; i < NUM_FLAGS; i++)
2808		2584	{
2809	ret = set_ob_key_value_s(op, canonical_key, value, add_key);	2585	if (len <= 10) // magic constant!
		2586	{
		2587	snprintf (p, len, ",...");
		2588	break;
		2589	}
		2590
		2591	if (flag [i])
		2592	{
		2593	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2594	len -= cnt;
		2595	p += cnt;
		2596	first = false;
		2597	}
2810		2598	}
2811	if (floating_ref) {	2599
2812	free_string(canonical_key);	2600	return desc;
2813	}	2601	}
2814		2602
		2603	// return a suitable string describing an object in enough detail to find it
		2604	const char *
		2605	object::debug_desc (char *info) const
		2606	{
		2607	char flagdesc[512];
		2608	char info2[256 * 4];
		2609	char *p = info;
		2610
		2611	p += snprintf (p, 512, "{cnt:%d,uuid:<1.%" PRIx64 ">,name:\"%s\"%s%s,flags:[%s],type:%d}",
		2612	count, uuid.seq,
		2613	&name,
		2614	title ? "\",title:\"" : "",
		2615	title ? (const char *)title : "",
		2616	flag_desc (flagdesc, 512), type);
		2617
		2618	if (env)
		2619	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2620
		2621	if (map)
		2622	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2623
		2624	return info;
		2625	}
		2626
		2627	const char *
		2628	object::debug_desc () const
		2629	{
		2630	static char info[3][256 * 4];
		2631	static int info_idx;
		2632
		2633	return debug_desc (info [++info_idx % 3]);
		2634	}
		2635
		2636	struct region *
		2637	object::region () const
		2638	{
		2639	return map ? map->region (x, y)
		2640	: region::default_region ();
		2641	}
		2642
		2643	const materialtype_t *
		2644	object::dominant_material () const
		2645	{
		2646	if (materialtype_t *mt = name_to_material (materialname))
2815	return ret;	2647	return mt;
		2648
		2649	return name_to_material (shstr_unknown);
2816	}	2650	}
		2651
		2652	void
		2653	object::open_container (object *new_container)
		2654	{
		2655	if (container == new_container)
		2656	return;
		2657
		2658	if (object *old_container = container)
		2659	{
		2660	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2661	return;
		2662
		2663	#if 0
		2664	// remove the "Close old_container" object.
		2665	if (object *closer = old_container->inv)
		2666	if (closer->type == CLOSE_CON)
		2667	closer->destroy ();
		2668	#endif
		2669
		2670	old_container->flag [FLAG_APPLIED] = 0;
		2671	container = 0;
		2672
		2673	esrv_update_item (UPD_FLAGS, this, old_container);
		2674	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2675	}
		2676
		2677	if (new_container)
		2678	{
		2679	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2680	return;
		2681
		2682	// TODO: this does not seem to serve any purpose anymore?
		2683	#if 0
		2684	// insert the "Close Container" object.
		2685	if (archetype *closer = new_container->other_arch)
		2686	{
		2687	object *closer = arch_to_object (new_container->other_arch);
		2688	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2689	new_container->insert (closer);
		2690	}
		2691	#endif
		2692
		2693	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2694
		2695	new_container->flag [FLAG_APPLIED] = 1;
		2696	container = new_container;
		2697
		2698	esrv_update_item (UPD_FLAGS, this, new_container);
		2699	esrv_send_inventory (this, new_container);
		2700	}
		2701	}
		2702
		2703	object *
		2704	object::force_find (const shstr name)
		2705	{
		2706	/* cycle through his inventory to look for the MARK we want to
		2707	* place
		2708	*/
		2709	for (object *tmp = inv; tmp; tmp = tmp->below)
		2710	if (tmp->type == FORCE && tmp->slaying == name)
		2711	return splay (tmp);
		2712
		2713	return 0;
		2714	}
		2715
		2716	void
		2717	object::force_add (const shstr name, int duration)
		2718	{
		2719	if (object *force = force_find (name))
		2720	force->destroy ();
		2721
		2722	object *force = get_archetype (FORCE_NAME);
		2723
		2724	force->slaying = name;
		2725	force->stats.food = 1;
		2726	force->speed_left = -1.f;
		2727
		2728	force->set_speed (duration ? 1.f / duration : 0.f);
		2729	force->flag [FLAG_IS_USED_UP] = true;
		2730	force->flag [FLAG_APPLIED] = true;
		2731
		2732	insert (force);
		2733	}
		2734

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