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Comparing deliantra/server/common/object.C (file contents):
Revision 1.8 by root, Tue Aug 29 08:01:35 2006 UTC vs.
Revision 1.176 by root, Fri Aug 10 11:02:43 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 1.8 2006/08/29 08:01:35 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
		201	|| ob1->type != ob2->type
		202	|| ob1->speed != ob2->speed
		203	|| ob1->value != ob2->value
		204	|| ob1->name != ob2->name)
		205	return 0;
130		206
131	if (ob1->speed != ob2->speed) return 0;	207	//TODO: this ain't working well, use nicer and correct overflow check
132	/* Note sure why the following is the case - either the object has to	208	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
133	* be animated or have a very low speed. Is this an attempted monster	209	* value could not be stored in a sint32 (which unfortunately sometimes is
134	* check?	210	* used to store nrof).
135	*/	211	*/
136	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)	212	if (ob1->nrof + ob2->nrof >= 1UL << 31)
		213	return 0;
		214
		215	/* If the objects have been identified, set the BEEN_APPLIED flag.
		216	* This is to the comparison of the flags below will be OK. We
		217	* just can't ignore the been applied or identified flags, as they
		218	* are not equal - just if it has been identified, the been_applied
		219	* flags lose any meaning.
		220	*/
		221	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
		222	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
		223
		224	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
		225	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
		226
		227	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
		228	|| ob1->arch != ob2->arch
		229	|| ob1->name != ob2->name
		230	|| ob1->title != ob2->title
		231	|| ob1->msg != ob2->msg
		232	|| ob1->weight != ob2->weight
		233	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		234	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
		235	|| ob1->attacktype != ob2->attacktype
		236	|| ob1->magic != ob2->magic
		237	|| ob1->slaying != ob2->slaying
		238	|| ob1->skill != ob2->skill
		239	|| ob1->value != ob2->value
		240	|| ob1->animation_id != ob2->animation_id
		241	|| ob1->client_type != ob2->client_type
		242	|| ob1->materialname != ob2->materialname
		243	|| ob1->lore != ob2->lore
		244	|| ob1->subtype != ob2->subtype
		245	|| ob1->move_type != ob2->move_type
		246	|| ob1->move_block != ob2->move_block
		247	|| ob1->move_allow != ob2->move_allow
		248	|| ob1->move_on != ob2->move_on
		249	|| ob1->move_off != ob2->move_off
		250	|| ob1->move_slow != ob2->move_slow
		251	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
		252	return 0;
		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))
137	return 0;	261	return 0;
138		262
139	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	263	/* Now check to see if the two inventory objects could merge */
140	* value could not be stored in a sint32 (which unfortunately sometimes is	264	if (!object::can_merge (ob1->inv, ob2->inv))
141	* used to store nrof).
142	*/
143	if (ob1->nrof+ob2->nrof >= 1UL<<31)
144	return 0;	265	return 0;
145		266
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	267	/* inventory ok - still need to check rest of this object to see
157	* if it is valid.	268	* if it is valid.
158	*/	269	*/
159	}	270	}
160		271
161	/* 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
163	* 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
165	* flags lose any meaning.
166	*/
167	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))
168	SET_FLAG(ob1, FLAG_BEEN_APPLIED);
169
170	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))
171	SET_FLAG(ob2, FLAG_BEEN_APPLIED);
172
173
174	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
175	* being locked in inventory should prevent merging.
176	* 0x4 in flags3 is CLIENT_SENT
177	*/
178	if ((ob1->arch != ob2->arch) ||
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) ||
188	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||
189	(ob1->attacktype != ob2->attacktype) ||
190	(ob1->magic != ob2->magic) ||
191	(ob1->slaying != ob2->slaying) ||
192	(ob1->skill != ob2->skill) ||
193	(ob1->value != ob2->value) ||
194	(ob1->animation_id != ob2->animation_id) ||
195	(ob1->client_type != ob2->client_type) ||
196	(ob1->materialname != ob2->materialname) ||
197	(ob1->lore != ob2->lore) ||
198	(ob1->subtype != ob2->subtype) ||
199	(ob1->move_type != ob2->move_type) ||
200	(ob1->move_block != ob2->move_block) ||
201	(ob1->move_allow != ob2->move_allow) ||
202	(ob1->move_on != ob2->move_on) ||
203	(ob1->move_off != ob2->move_off) ||
204	(ob1->move_slow != ob2->move_slow) ||
205	(ob1->move_slow_penalty != ob2->move_slow_penalty)
206	)
207	return 0;
208
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))
		277	return 0;
		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
		286	switch (ob1->type)
		287	{
		288	case SCROLL:
		289	if (ob1->level != ob2->level)
		290	return 0;
		291	break;
		292	}
		293
		294	if (ob1->key_values != NULL || ob2->key_values != NULL)
		295	{
		296	/* At least one of these has key_values. */
		297	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
		298	/* One has fields, but the other one doesn't. */
214	return 0;	299	return 0;
		300	else if (!compare_ob_value_lists (ob1, ob2))
		301	return 0;
		302	}
215		303
216	switch (ob1->type) {	304	if (ob1->self || ob2->self)
217	case SCROLL:
218	if (ob1->level != ob2->level) return 0;
219	break;
220
221	}	305	{
222	if (ob1->key_values != NULL || ob2->key_values != NULL) {	306	ob1->optimise ();
223	/* At least one of these has key_values. */	307	ob2->optimise ();
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {	308
225	/* One has fields, but the other one doesn't. */	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) {	458	{
526	/* players don't have owners - they own themselves. Update	459	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
527	* as appropriate.	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;
		469	}
		470
		471	bool
		472	object::change_weapon (object *ob)
		473	{
		474	if (current_weapon == ob)
		475	return true;
		476
		477	if (chosen_skill)
		478	chosen_skill->flag [FLAG_APPLIED] = false;
		479
		480	current_weapon = ob;
		481	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		482
		483	if (chosen_skill)
		484	chosen_skill->flag [FLAG_APPLIED] = true;
		485
		486	update_stats ();
		487
		488	if (ob)
		489	{
		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)
528	*/	494	{
529	if (clone->type == PLAYER) owner=clone;	495	current_weapon = chosen_skill = 0;
530	else return;	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)
531	}	511	{
532	set_owner(op, owner);	512	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		513	&name, ob->debug_desc ());
		514	return false;
		515	}
533		516
534	}	517	return true;
535
536	/*
537	* Resets vital variables in an object
538	*/
539
540	void reset_object(object *op) {
541
542	op->name = NULL;
543	op->name_pl = NULL;
544	op->title = NULL;
545	op->race = NULL;
546	op->slaying = NULL;
547	op->skill = NULL;
548	op->msg = NULL;
549	op->materialname = NULL;
550	op->lore = NULL;
551	clear_object(op);
552	}	518	}
553		519
554	/* Zero the key_values on op, decrementing the shared-string	520	/* Zero the key_values on op, decrementing the shared-string
555	* refcounts and freeing the links.	521	* refcounts and freeing the links.
556	*/	522	*/
		523	static void
557	static void free_key_values(object * op) {	524	free_key_values (object *op)
558	key_value * i;	525	{
559	key_value * next = NULL;	526	for (key_value *i = op->key_values; i; )
560		527	{
561	if (op->key_values == NULL) return;	528	key_value *next = i->next;
		529	delete i;
		530
		531	i = next;
562		532	}
563	for (i = op->key_values; i != NULL; i = next) {	533
564	/* Store next *first*. */	534	op->key_values = 0;
565	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)
566		555	{
567	if (i->key) FREE_AND_CLEAR_STR(i->key);	556	key_value *new_link = new key_value;
568	if (i->value) FREE_AND_CLEAR_STR(i->value);	557
569	i->next = NULL;	558	new_link->next = 0;
570	free(i);	559	new_link->key = i->key;
571	}	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	}
572		574	}
573	op->key_values = NULL;
574	}	575	}
575		576
576
577	/*	577	/*
578	* clear_object() frees everything allocated by an object, and also
579	* clears all variables and flags to default settings.
580	*/
581
582	void clear_object(object *op) {
583	op->clear ();
584
585	event *evt;
586	event *evt2;
587
588	/* redo this to be simpler/more efficient. Was also seeing
589	* crashes in the old code. Move this to the top - am
590	* seeing periodic crashes in this code, and would like to have
591	* as much info available as possible (eg, object name).
592	*/
593	for (evt = op->events; evt; evt=evt2) {
594	evt2 = evt->next;
595
596	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
597	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
598	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
599
600	free(evt);
601	}
602	op->events = NULL;
603
604	free_key_values(op);
605
606	/* the memset will clear all these values for us, but we need
607	* to reduce the refcount on them.
608	*/
609	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);
610	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);
611	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);
612	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);
613	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);
614	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);
615	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);
616	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);
617	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);
618
619
620	memset((void*)op, 0, sizeof (object_special));
621	/* Below here, we clear things that are not done by the memset,
622	* or set default values that are not zero.
623	*/
624	/* This is more or less true */
625	SET_FLAG(op, FLAG_REMOVED);
626
627
628	op->contr = NULL;
629	op->below=NULL;
630	op->above=NULL;
631	op->inv=NULL;
632	op->events=NULL;
633	op->container=NULL;
634	op->env=NULL;
635	op->more=NULL;
636	op->head=NULL;
637	op->map=NULL;
638	op->refcount=0;
639	op->active_next = NULL;
640	op->active_prev = NULL;
641	/* What is not cleared is next, prev, and count */
642
643	op->expmul=1.0;
644	op->face = blank_face;
645	op->attacked_by_count = (tag_t) -1;
646	if (settings.casting_time)
647	op->casting_time = -1;
648
649	}
650
651	/*
652	* copy object first frees everything allocated by the second object,	578	* copy_to first frees everything allocated by the dst object,
653	* and then copies the contends of the first object into the second	579	* and then copies the contents of itself into the second
654	* object, allocating what needs to be allocated. Basically, any	580	* object, allocating what needs to be allocated. Basically, any
655	* 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,
656	* 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
657	* will point at garbage.	583	* will point at garbage.
658	*/	584	*/
		585	void
		586	object::copy_to (object *dst)
		587	{
		588	*dst = *this;
659		589
660	void copy_object(object *op2, object *op) {	590	if (speed < 0)
661	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);	591	dst->speed_left = speed_left - rndm ();
662	event *evt, *evt2, *evt_new;
663		592
664	op->clear ();	593	dst->set_speed (dst->speed);
665
666	/* Decrement the refcounts, but don't bother zeroing the fields;
667	they'll be overwritten by memcpy. */
668	if(op->name!=NULL) free_string(op->name);
669	if(op->name_pl!=NULL) free_string(op->name_pl);
670	if(op->title!=NULL) free_string(op->title);
671	if(op->race!=NULL) free_string(op->race);
672	if(op->slaying!=NULL) free_string(op->slaying);
673	if(op->skill!=NULL) free_string(op->skill);
674	if(op->msg!=NULL) free_string(op->msg);
675	if(op->lore!=NULL) free_string(op->lore);
676	if(op->materialname != NULL) free_string(op->materialname);
677	if(op->custom_name != NULL) free_string(op->custom_name);
678
679	/* Basically, same code as from clear_object() */
680	for (evt = op->events; evt; evt=evt2) {
681	evt2 = evt->next;
682
683	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
684	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
685	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
686
687	free(evt);
688	}
689	op->events = NULL;
690
691	free_key_values(op);
692
693	*(object_special *)op = *(object_special *)op2;
694	op2->clone (op);
695
696	if(is_freed) SET_FLAG(op,FLAG_FREED);
697	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
698	if(op->name!=NULL) add_refcount(op->name);
699	if(op->name_pl!=NULL) add_refcount(op->name_pl);
700	if(op->title!=NULL) add_refcount(op->title);
701	if(op->race!=NULL) add_refcount(op->race);
702	if(op->slaying!=NULL) add_refcount(op->slaying);
703	if(op->skill!=NULL) add_refcount(op->skill);
704	if(op->lore!=NULL) add_refcount(op->lore);
705	if(op->msg!=NULL) add_refcount(op->msg);
706	if(op->custom_name!=NULL) add_refcount(op->custom_name);
707	if (op->materialname != NULL) add_refcount(op->materialname);
708
709	if((op2->speed<0) && !editor)
710	op->speed_left=op2->speed_left-RANDOM()%200/100.0;
711
712	/* Copy over event information */
713	evt2 = NULL;
714	for (evt = op2->events; evt; evt=evt->next) {
715	evt_new = (event *) malloc(sizeof(event));
716	memcpy(evt_new, evt, sizeof(event));
717	if (evt_new->hook) add_refcount(evt_new->hook);
718	if (evt_new->plugin) add_refcount(evt_new->plugin);
719	if (evt_new->options) add_refcount(evt_new->options);
720	evt_new->next = NULL;
721
722	/* Try to be a little clever here, and store away the
723	* last event we copied, so that its simpler to update the
724	* pointer.
725	*/
726	if (evt2)
727	evt2->next = evt_new;
728	else
729	op->events = evt_new;
730
731	evt2 = evt_new;
732	}
733	/* Copy over key_values, if any. */
734	if (op2->key_values != NULL) {
735	key_value * tail = NULL;
736	key_value * i;
737
738	op->key_values = NULL;
739
740	for (i = op2->key_values; i != NULL; i = i->next) {
741	key_value * new_link = (key_value *) malloc(sizeof(key_value));
742
743	new_link->next = NULL;
744	new_link->key = add_refcount(i->key);
745	if (i->value)
746	new_link->value = add_refcount(i->value);
747	else
748	new_link->value = NULL;
749
750	/* Try and be clever here, too. */
751	if (op->key_values == NULL) {
752	op->key_values = new_link;
753	tail = new_link;
754	} else {
755	tail->next = new_link;
756	tail = new_link;
757	}
758	}
759	}
760
761	update_ob_speed(op);
762	}	594	}
763		595
764	/*	596	void
765	* expand_objects() allocates more objects for the list of unused objects.	597	object::instantiate ()
766	* It is called from get_object() if the unused list is empty.	598	{
767	*/	599	if (!uuid.seq) // HACK
		600	uuid = gen_uuid ();
768		601
769	void expand_objects(void) {	602	speed_left = -0.1f;
770	int i;	603	/* copy the body_info to the body_used - this is only really
771	object *obj;	604	* need for monsters, but doesn't hurt to do it for everything.
772	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));	605	* by doing so, when a monster is created, it has good starting
773		606	* values for the body_used info, so when items are created
774	if(obj==NULL)	607	* for it, they can be properly equipped.
775	fatal(OUT_OF_MEMORY);
776	free_objects=obj;
777	obj[0].prev=NULL;
778	obj[0].next= &obj[1],
779	SET_FLAG(&(obj[0]), FLAG_REMOVED);
780	SET_FLAG(&(obj[0]), FLAG_FREED);
781
782	for(i=1;i<OBJ_EXPAND-1;i++) {
783	obj[i].next= &obj[i+1],
784	obj[i].prev= &obj[i-1],
785	SET_FLAG(&(obj[i]), FLAG_REMOVED);
786	SET_FLAG(&(obj[i]), FLAG_FREED);
787	}
788	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
789	obj[OBJ_EXPAND-1].next=NULL,
790	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
791	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
792
793	nrofallocobjects += OBJ_EXPAND;
794	nroffreeobjects += OBJ_EXPAND;
795	}
796
797	/*
798	* get_object() grabs an object from the list of unused objects, makes
799	* sure it is initialised, and returns it.
800	* If there are no free objects, expand_objects() is called to get more.
801	*/
802
803	object *get_object(void) {
804	object *op;
805
806	if(free_objects==NULL) {
807	expand_objects();
808	}
809	op=free_objects;
810	#ifdef MEMORY_DEBUG
811	/* The idea is hopefully by doing a realloc, the memory
812	* debugging program will now use the current stack trace to
813	* report leaks.
814	*/	608	*/
815	op = realloc(op, sizeof(object));	609	for (int i = NUM_BODY_LOCATIONS; i--; )
816	SET_FLAG(op, FLAG_REMOVED);	610	slot[i].used = slot[i].info;
817	SET_FLAG(op, FLAG_FREED);
818	#endif
819		611
820	if(!QUERY_FLAG(op,FLAG_FREED)) {	612	attachable::instantiate ();
821	LOG(llevError,"Fatal: Getting busy object.\n");	613	}
822	}	614
823	free_objects=op->next;	615	object *
824	if(free_objects!=NULL)	616	object::clone ()
825	free_objects->prev=NULL;	617	{
826	op->count= ++ob_count;	618	object *neu = create ();
827	op->name=NULL;	619	copy_to (neu);
828	op->name_pl=NULL;
829	op->title=NULL;
830	op->race=NULL;
831	op->slaying=NULL;
832	op->skill = NULL;
833	op->lore=NULL;
834	op->msg=NULL;
835	op->materialname=NULL;
836	op->next=objects;
837	op->prev=NULL;
838	op->active_next = NULL;
839	op->active_prev = NULL;
840	if(objects!=NULL)
841	objects->prev=op;
842	objects=op;
843	clear_object(op);
844	SET_FLAG(op,FLAG_REMOVED);
845	nroffreeobjects--;
846	return op;	620	return neu;
847	}	621	}
848		622
849	/*	623	/*
850	* 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
851	* 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
852	* 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.
853	*/	627	*/
854		628	void
855	void update_turn_face(object *op) {	629	update_turn_face (object *op)
		630	{
856	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	631	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
857	return;	632	return;
		633
858	SET_ANIMATION(op, op->direction);	634	SET_ANIMATION (op, op->direction);
859	update_object(op,UP_OBJ_FACE);	635	update_object (op, UP_OBJ_FACE);
860	}	636	}
861		637
862	/*	638	/*
863	* 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
864	* 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.
865	* 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.
866	*/	642	*/
867		643	void
868	void update_ob_speed(object *op) {	644	object::set_speed (float speed)
869	extern int arch_init;	645	{
870		646	if (flag [FLAG_FREED] && speed)
871	/* No reason putting the archetypes objects on the speed list,	647	{
872	* since they never really need to be updated.
873	*/
874
875	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {
876	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	648	LOG (llevError, "Object %s is freed but has speed.\n", &name);
877	#ifdef MANY_CORES
878	abort();
879	#else
880	op->speed = 0;	649	speed = 0;
881	#endif
882	}	650	}
883	if (arch_init) {
884	return;
885	}
886	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
887	/* If already on active list, don't do anything */
888	if (op->active_next || op->active_prev || op==active_objects)
889	return;
890		651
891	/* process_events() expects us to insert the object at the beginning	652	this->speed = speed;
892	* of the list. */	653
893	op->active_next = active_objects;	654	if (has_active_speed ())
894	if (op->active_next!=NULL)	655	activate ();
895	op->active_next->active_prev = op;
896	active_objects = op;
897	}
898	else {	656	else
899	/* If not on the active list, nothing needs to be done */	657	deactivate ();
900	if (!op->active_next && !op->active_prev && op!=active_objects)
901	return;
902
903	if (op->active_prev==NULL) {
904	active_objects = op->active_next;
905	if (op->active_next!=NULL)
906	op->active_next->active_prev = NULL;
907	}
908	else {
909	op->active_prev->active_next = op->active_next;
910	if (op->active_next)
911	op->active_next->active_prev = op->active_prev;
912	}
913	op->active_next = NULL;
914	op->active_prev = NULL;
915	}
916	}	658	}
917		659
918	/* This function removes object 'op' from the list of active
919	* objects.
920	* This should only be used for style maps or other such
921	* reference maps where you don't want an object that isn't
922	* in play chewing up cpu time getting processed.
923	* The reverse of this is to call update_ob_speed, which
924	* will do the right thing based on the speed of the object.
925	*/
926	void remove_from_active_list(object *op)
927	{
928	/* If not on the active list, nothing needs to be done */
929	if (!op->active_next && !op->active_prev && op!=active_objects)
930	return;
931
932	if (op->active_prev==NULL) {
933	active_objects = op->active_next;
934	if (op->active_next!=NULL)
935	op->active_next->active_prev = NULL;
936	}
937	else {
938	op->active_prev->active_next = op->active_next;
939	if (op->active_next)
940	op->active_next->active_prev = op->active_prev;
941	}
942	op->active_next = NULL;
943	op->active_prev = NULL;
944	}
945
946	/*	660	/*
947	* update_object() updates the array which represents the map.	661	* update_object() updates the the map.
948	* It takes into account invisible objects (and represent squares covered	662	* It takes into account invisible objects (and represent squares covered
949	* 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
950	* invisible object, etc...)	664	* invisible object, etc...)
951	* 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
952	* 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
953	* updating that window, though, since update_object() is called _often_)	667	* updating that window, though, since update_object() is called _often_)
954	*	668	*
955	* 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.
956	* For example, if the only thing that has changed is the face (due to
957	* an animation), we don't need to call update_position until that actually
958	* comes into view of a player. OTOH, many other things, like addition/removal
959	* of walls or living creatures may need us to update the flags now.
960	* current action are:	670	* current action are:
961	* UP_OBJ_INSERT: op was inserted	671	* UP_OBJ_INSERT: op was inserted
962	* UP_OBJ_REMOVE: op was removed	672	* UP_OBJ_REMOVE: op was removed
963	* 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
964	* 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.
965	* UP_OBJ_FACE: only the objects face has changed.	675	* UP_OBJ_FACE: only the objects face has changed.
966	*/	676	*/
967		677	void
968	void update_object(object *op, int action) {	678	update_object (object *op, int action)
969	int update_now=0, flags;	679	{
970	MoveType move_on, move_off, move_block, move_slow;
971
972	if (op == NULL) {	680	if (op == NULL)
		681	{
973	/* this should never happen */	682	/* this should never happen */
974	LOG(llevDebug,"update_object() called for NULL object.\n");	683	LOG (llevDebug, "update_object() called for NULL object.\n");
975	return;	684	return;
976	}
977		685	}
978	if(op->env!=NULL) {	686
		687	if (op->env)
		688	{
979	/* Animation is currently handled by client, so nothing	689	/* Animation is currently handled by client, so nothing
980	* to do in this case.	690	* to do in this case.
981	*/	691	*/
982	return;	692	return;
983	}	693	}
984		694
985	/* 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
986	* going to get freed anyways.	696	* going to get freed anyways.
987	*/	697	*/
988	if (!op->map || op->map->in_memory == MAP_SAVING) return;	698	if (!op->map || op->map->in_memory == MAP_SAVING)
989		699	return;
		700
990	/* make sure the object is within map boundaries */	701	/* make sure the object is within map boundaries */
991	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)
992	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	703	{
993	LOG(llevError,"update_object() called for object out of map!\n");	704	LOG (llevError, "update_object() called for object out of map!\n");
994	#ifdef MANY_CORES	705	#ifdef MANY_CORES
995	abort();	706	abort ();
996	#endif	707	#endif
997	return;	708	return;
998	}
999		709	}
1000	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
1001	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
1002	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
1003	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
1004	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
1005	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
1006		710
		711	mapspace &m = op->ms ();
		712
		713	if (!(m.flags_ & P_UPTODATE))
		714	/* nop */;
1007	if (action == UP_OBJ_INSERT) {	715	else if (action == UP_OBJ_INSERT)
		716	{
		717	// this is likely overkill, TODO: revisit (schmorp)
1008	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	718	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
1009	update_now=1;
1010
1011	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	719	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
1012	update_now=1;	720	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
1013		721	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		722	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
1014	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	723	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
1015	update_now=1;	724	|| (m.move_on | op->move_on ) != m.move_on
1016
1017	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
1018	update_now=1;
1019
1020	if ((move_on | op->move_on) != move_on) update_now=1;
1021	if ((move_off | op->move_off) != move_off) update_now=1;	725	|| (m.move_off | op->move_off ) != m.move_off
		726	|| (m.move_slow | op->move_slow) != m.move_slow
1022	/* 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
1023	* to have move_allow right now.	728	* to have move_allow right now.
1024	*/	729	*/
1025	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	730	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
1026	update_now=1;	731	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
1027	if ((move_slow | op->move_slow) != move_slow) update_now=1;	732	m.flags_ = 0;
1028	}	733	}
1029	/* if the object is being removed, we can't make intelligent	734	/* if the object is being removed, we can't make intelligent
1030	* decisions, because remove_ob can't really pass the object	735	* decisions, because remove_ob can't really pass the object
1031	* that is being removed.	736	* that is being removed.
1032	*/	737	*/
1033	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	738	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1034	update_now=1;	739	m.flags_ = 0;
1035	} else if (action == UP_OBJ_FACE) {	740	else if (action == UP_OBJ_FACE)
1036	/* Nothing to do for that case */	741	/* Nothing to do for that case */ ;
1037	}
1038	else {	742	else
1039	LOG(llevError,"update_object called with invalid action: %d\n", action);	743	LOG (llevError, "update_object called with invalid action: %d\n", action);
1040	}
1041		744
1042	if (update_now) {
1043	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1044	update_position(op->map, op->x, op->y);
1045	}
1046
1047	if(op->more!=NULL)	745	if (op->more)
1048	update_object(op->more, action);	746	update_object (op->more, action);
1049	}	747	}
1050		748
		749	object::object ()
		750	{
		751	SET_FLAG (this, FLAG_REMOVED);
1051		752
1052	/*	753	expmul = 1.0;
1053	* free_object() frees everything allocated by an object, removes	754	face = blank_face;
1054	* it from the list of used objects, and puts it on the list of
1055	* free objects. The IS_FREED() flag is set in the object.
1056	* The object must have been removed by remove_ob() first for
1057	* this function to succeed.
1058	*
1059	* If free_inventory is set, free inventory as well. Else drop items in
1060	* inventory to the ground.
1061	*/
1062
1063	void free_object(object *ob) {
1064	free_object2(ob, 0);
1065	}	755	}
1066	void free_object2(object *ob, int free_inventory) {
1067	object *tmp,*op;
1068		756
1069	ob->clear ();	757	object::~object ()
		758	{
		759	unlink ();
1070		760
1071	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	761	free_key_values (this);
1072	LOG(llevDebug,"Free object called with non removed object\n");	762	}
1073	dump_object(ob);	763
1074	#ifdef MANY_CORES	764	static int object_count;
1075	abort();	765
1076	#endif	766	void object::link ()
1077	}	767	{
1078	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	768	assert (!index);//D
1079	LOG(llevMonster,"Warning: tried to free friendly object.\n");	769	uuid = gen_uuid ();
1080	remove_friendly_object(ob);	770	count = ++object_count;
1081	}	771
1082	if(QUERY_FLAG(ob,FLAG_FREED)) {	772	refcnt_inc ();
1083	dump_object(ob);	773	objects.insert (this);
1084	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);	774	}
		775
		776	void object::unlink ()
		777	{
		778	if (!index)
1085	return;	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.
		812	*/
		813	void
		814	object::deactivate ()
		815	{
		816	/* If not on the active list, nothing needs to be done */
		817	if (!active)
		818	return;
		819
		820	actives.erase (this);
		821	}
		822
		823	void
		824	object::deactivate_recursive ()
		825	{
		826	for (object *op = inv; op; op = op->below)
		827	op->deactivate_recursive ();
		828
		829	deactivate ();
		830	}
		831
		832	void
		833	object::set_flag_inv (int flag, int value)
		834	{
		835	for (object *op = inv; op; op = op->below)
1086	}	836	{
1087	if(ob->more!=NULL) {	837	op->flag [flag] = value;
1088	free_object2(ob->more, free_inventory);	838	op->set_flag_inv (flag, value);
1089	ob->more=NULL;
1090	}	839	}
1091	if (ob->inv) {	840	}
		841
		842	/*
		843	* Remove and free all objects in the inventory of the given object.
		844	* object.c ?
		845	*/
		846	void
		847	object::destroy_inv (bool drop_to_ground)
		848	{
		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
1092	/* Only if the space blocks everything do we not process -	857	/* Only if the space blocks everything do we not process -
1093	* if some form of movemnt is allowed, let objects	858	* if some form of movement is allowed, let objects
1094	* drop on that space.	859	* drop on that space.
1095	*/	860	*/
1096	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	861	if (!drop_to_ground
1097	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	862	|| !map
		863	|| map->in_memory != MAP_IN_MEMORY
		864	|| map->nodrop
		865	|| ms ().move_block == MOVE_ALL)
		866	{
		867	while (inv)
1098	{	868	{
1099	op=ob->inv;	869	inv->destroy_inv (drop_to_ground);
1100	while(op!=NULL) {	870	inv->destroy ();
1101	tmp=op->below;
1102	remove_ob(op);
1103	free_object2(op, free_inventory);
1104	op=tmp;
1105	}
1106	}	871	}
		872	}
		873	else
1107	else { /* Put objects in inventory onto this space */	874	{ /* Put objects in inventory onto this space */
1108	op=ob->inv;	875	while (inv)
1109	while(op!=NULL) {	876	{
1110	tmp=op->below;	877	object *op = inv;
1111	remove_ob(op);	878
1112	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||	879	if (op->flag [FLAG_STARTEQUIP]
1113	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))	880	|| op->flag [FLAG_NO_DROP]
1114	free_object(op);	881	|| op->type == RUNE
		882	|| op->type == TRAP
		883	|| op->flag [FLAG_IS_A_TEMPLATE]
		884	|| op->flag [FLAG_DESTROY_ON_DEATH])
		885	op->destroy ();
1115	else {	886	else
1116	op->x=ob->x;	887	map->insert (op, x, y);
1117	op->y=ob->y;
1118	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */
1119	}
1120	op=tmp;
1121	}
1122	}	888	}
1123	}	889	}
1124	/* Remove object from the active list */	890	}
1125	ob->speed = 0;
1126	update_ob_speed(ob);
1127		891
1128	SET_FLAG(ob, FLAG_FREED);	892	object *object::create ()
1129	ob->count = 0;	893	{
		894	object *op = new object;
		895	op->link ();
		896	return op;
		897	}
1130		898
1131	/* Remove this object from the list of used objects */	899	void
1132	if(ob->prev==NULL) {	900	object::do_destroy ()
1133	objects=ob->next;	901	{
1134	if(objects!=NULL)	902	attachable::do_destroy ();
1135	objects->prev=NULL;	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;
1136	}	934	}
1137	else {	935
1138	ob->prev->next=ob->next;	936	map = freed_map;
1139	if(ob->next!=NULL)	937	x = 1;
1140	ob->next->prev=ob->prev;	938	y = 1;
1141	}
1142		939	}
1143	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1144	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1145	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1146	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1147	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1148	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1149	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1150	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1151	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1152		940
		941	if (more)
1153		942	{
1154	/* Why aren't events freed? */	943	more->destroy ();
1155	free_key_values(ob);	944	more = 0;
		945	}
1156		946
1157	#if 0 /* MEMORY_DEBUG*/	947	head = 0;
1158	/* This is a nice idea. Unfortunately, a lot of the code in crossfire
1159	* presumes the freed_object will stick around for at least a little
1160	* bit
1161	*/
1162	/* this is necessary so that memory debugging programs will
1163	* be able to accurately report source of malloc. If we recycle
1164	* objects, then some other area may be doing the get_object
1165	* and not freeing it, but the original one that malloc'd the
1166	* object will get the blame.
1167	*/
1168	free(ob);
1169	#else
1170		948
1171	/* Now link it with the free_objects list: */	949	// clear those pointers that likely might cause circular references
1172	ob->prev=NULL;	950	owner = 0;
1173	ob->next=free_objects;	951	enemy = 0;
1174	if(free_objects!=NULL)	952	attacked_by = 0;
1175	free_objects->prev=ob;	953	current_weapon = 0;
1176	free_objects=ob;
1177	nroffreeobjects++;
1178	#endif
1179	}	954	}
1180		955
1181	/*	956	void
1182	* count_free() returns the number of objects on the list of free objects.	957	object::destroy (bool destroy_inventory)
1183	*/	958	{
1184		959	if (destroyed ())
1185	int count_free(void) {
1186	int i=0;
1187	object *tmp=free_objects;
1188	while(tmp!=NULL)
1189	tmp=tmp->next, i++;
1190	return i;	960	return;
1191	}
1192		961
1193	/*	962	if (destroy_inventory)
1194	* count_used() returns the number of objects on the list of used objects.	963	destroy_inv (false);
1195	*/
1196		964
1197	int count_used(void) {	965	if (is_head ())
1198	int i=0;	966	if (sound_destroy)
1199	object *tmp=objects;	967	play_sound (sound_destroy);
1200	while(tmp!=NULL)	968	else if (flag [FLAG_MONSTER])
1201	tmp=tmp->next, i++;	969	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
1202	return i;
1203	}
1204		970
1205	/*	971	attachable::destroy ();
1206	* count_active() returns the number of objects on the list of active objects.
1207	*/
1208
1209	int count_active(void) {
1210	int i=0;
1211	object *tmp=active_objects;
1212	while(tmp!=NULL)
1213	tmp=tmp->active_next, i++;
1214	return i;
1215	}	972	}
1216		973
1217	/*	974	/*
1218	* sub_weight() recursively (outwards) subtracts a number from the	975	* sub_weight() recursively (outwards) subtracts a number from the
1219	* weight of an object (and what is carried by it's environment(s)).	976	* weight of an object (and what is carried by it's environment(s)).
1220	*/	977	*/
1221		978	void
1222	void sub_weight (object *op, signed long weight) {	979	sub_weight (object *op, signed long weight)
		980	{
1223	while (op != NULL) {	981	while (op != NULL)
		982	{
1224	if (op->type == CONTAINER) {	983	if (op->type == CONTAINER)
1225	weight=(signed long)(weight*(100-op->stats.Str)/100);	984	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1226	}	985
1227	op->carrying-=weight;	986	op->carrying -= weight;
1228	op = op->env;	987	op = op->env;
1229	}	988	}
1230	}	989	}
1231		990
1232	/* remove_ob(op):	991	/* op->remove ():
1233	* This function removes the object op from the linked list of objects	992	* This function removes the object op from the linked list of objects
1234	* which it is currently tied to. When this function is done, the	993	* which it is currently tied to. When this function is done, the
1235	* object will have no environment. If the object previously had an	994	* object will have no environment. If the object previously had an
1236	* environment, the x and y coordinates will be updated to	995	* environment, the x and y coordinates will be updated to
1237	* the previous environment.	996	* the previous environment.
1238	* Beware: This function is called from the editor as well!
1239	*/	997	*/
1240		998	void
1241	void remove_ob(object *op) {	999	object::do_remove ()
		1000	{
1242	object *tmp,*last=NULL;	1001	object *tmp, *last = 0;
1243	object *otmp;	1002	object *otmp;
1244	tag_t tag;
1245	int check_walk_off;
1246	mapstruct *m;
1247	sint16 x,y;
1248
1249		1003
1250	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1004	if (QUERY_FLAG (this, FLAG_REMOVED))
1251	dump_object(op);	1005	return;
1252	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1253		1006
1254	/* Changed it to always dump core in this case. As has been learned
1255	* in the past, trying to recover from errors almost always
1256	* make things worse, and this is a real error here - something
1257	* that should not happen.
1258	* Yes, if this was a mission critical app, trying to do something
1259	* to recover may make sense, but that is because failure of the app
1260	* may have other disastrous problems. Cf runs out of a script
1261	* so is easily enough restarted without any real problems.
1262	* MSW 2001-07-01
1263	*/
1264	abort();
1265	}
1266	if(op->more!=NULL)
1267	remove_ob(op->more);
1268
1269	SET_FLAG(op, FLAG_REMOVED);	1007	SET_FLAG (this, FLAG_REMOVED);
		1008	INVOKE_OBJECT (REMOVE, this);
1270		1009
		1010	if (more)
		1011	more->remove ();
		1012
1271	/*	1013	/*
1272	* In this case, the object to be removed is in someones	1014	* In this case, the object to be removed is in someones
1273	* inventory.	1015	* inventory.
1274	*/	1016	*/
1275	if(op->env!=NULL) {	1017	if (env)
		1018	{
1276	if(op->nrof)	1019	if (nrof)
1277	sub_weight(op->env, op->weight*op->nrof);	1020	sub_weight (env, weight * nrof);
1278	else	1021	else
1279	sub_weight(op->env, op->weight+op->carrying);	1022	sub_weight (env, weight + carrying);
1280		1023
1281	/* NO_FIX_PLAYER is set when a great many changes are being	1024	/* NO_FIX_PLAYER is set when a great many changes are being
1282	* made to players inventory. If set, avoiding the call	1025	* made to players inventory. If set, avoiding the call
1283	* to save cpu time.	1026	* to save cpu time.
1284	*/	1027	*/
1285	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1028	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1286	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1029	otmp->update_stats ();
1287	fix_player(otmp);
1288		1030
1289	if(op->above!=NULL)	1031	if (above)
1290	op->above->below=op->below;	1032	above->below = below;
1291	else	1033	else
1292	op->env->inv=op->below;	1034	env->inv = below;
1293		1035
1294	if(op->below!=NULL)	1036	if (below)
1295	op->below->above=op->above;	1037	below->above = above;
1296		1038
1297	/* we set up values so that it could be inserted into	1039	/* we set up values so that it could be inserted into
1298	* the map, but we don't actually do that - it is up	1040	* the map, but we don't actually do that - it is up
1299	* to the caller to decide what we want to do.	1041	* to the caller to decide what we want to do.
		1042	*/
		1043	x = env->x, y = env->y;
		1044	map = env->map;
		1045	above = 0, below = 0;
		1046	env = 0;
		1047	}
		1048	else if (map)
		1049	{
		1050	if (type == PLAYER)
		1051	{
		1052	// leaving a spot always closes any open container on the ground
		1053	if (container && !container->env)
		1054	// this causes spurious floorbox updates, but it ensures
		1055	// that the CLOSE event is being sent.
		1056	close_container ();
		1057
		1058	--map->players;
		1059	map->touch ();
		1060	}
		1061
		1062	map->dirty = true;
		1063	mapspace &ms = this->ms ();
		1064
		1065	/* link the object above us */
		1066	if (above)
		1067	above->below = below;
		1068	else
		1069	ms.top = below; /* we were top, set new top */
		1070
		1071	/* Relink the object below us, if there is one */
		1072	if (below)
		1073	below->above = above;
		1074	else
		1075	{
		1076	/* Nothing below, which means we need to relink map object for this space
		1077	* use translated coordinates in case some oddness with map tiling is
		1078	* evident
1300	*/	1079	*/
1301	op->x=op->env->x,op->y=op->env->y;	1080	if (GET_MAP_OB (map, x, y) != this)
1302	op->ox=op->x,op->oy=op->y;	1081	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 ());
1303	op->map=op->env->map;	1082
1304	op->above=NULL,op->below=NULL;	1083	ms.bot = above; /* goes on above it. */
1305	op->env=NULL;	1084	}
		1085
		1086	above = 0;
		1087	below = 0;
		1088
		1089	if (map->in_memory == MAP_SAVING)
1306	return;	1090	return;
1307	}
1308		1091
1309	/* If we get here, we are removing it from a map */	1092	int check_walk_off = !flag [FLAG_NO_APPLY];
1310	if (op->map == NULL) return;
1311		1093
1312	x = op->x;	1094	if (object *pl = ms.player ())
1313	y = op->y;
1314	m = get_map_from_coord(op->map, &x, &y);
1315
1316	if (!m) {
1317	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1318	op->map->path, op->x, op->y);
1319	/* in old days, we used to set x and y to 0 and continue.
1320	* it seems if we get into this case, something is probablye
1321	* screwed up and should be fixed.
1322	*/
1323	abort();
1324	}
1325	if (op->map != m) {
1326	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1327	op->map->path, m->path, op->x, op->y, x, y);
1328	}
1329
1330	/* Re did the following section of code - it looks like it had
1331	* lots of logic for things we no longer care about
1332	*/
1333
1334	/* link the object above us */
1335	if (op->above)
1336	op->above->below=op->below;
1337	else
1338	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1339
1340	/* Relink the object below us, if there is one */
1341	if(op->below) {
1342	op->below->above=op->above;
1343	} else {
1344	/* Nothing below, which means we need to relink map object for this space
1345	* use translated coordinates in case some oddness with map tiling is
1346	* evident
1347	*/
1348	if(GET_MAP_OB(m,x,y)!=op) {
1349	dump_object(op);
1350	LOG(llevError,"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", errmsg);
1351	dump_object(GET_MAP_OB(m,x,y));
1352	LOG(llevError,"%s\n",errmsg);
1353	}	1095	{
1354	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1096	if (pl->container == this)
1355	}
1356	op->above=NULL;
1357	op->below=NULL;
1358
1359	if (op->map->in_memory == MAP_SAVING)
1360	return;
1361
1362	tag = op->count;
1363	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1364	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1365	/* No point updating the players look faces if he is the object
1366	* being removed.
1367	*/
1368
1369	if(tmp->type==PLAYER && tmp!=op) {
1370	/* If a container that the player is currently using somehow gets	1097	/* If a container that the player is currently using somehow gets
1371	* removed (most likely destroyed), update the player view	1098	* removed (most likely destroyed), update the player view
1372	* appropriately.	1099	* appropriately.
1373	*/	1100	*/
1374	if (tmp->container==op) {	1101	pl->close_container ();
1375	CLEAR_FLAG(op, FLAG_APPLIED);	1102
1376	tmp->container=NULL;	1103	pl->contr->ns->floorbox_update ();
		1104	}
		1105
		1106	for (tmp = ms.bot; tmp; tmp = tmp->above)
		1107	{
		1108	/* No point updating the players look faces if he is the object
		1109	* being removed.
		1110	*/
		1111
		1112	/* See if object moving off should effect something */
		1113	if (check_walk_off
		1114	&& ((move_type & tmp->move_off)
		1115	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1116	{
		1117	move_apply (tmp, this, 0);
		1118
		1119	if (destroyed ())
		1120	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1377	}	1121	}
1378	tmp->contr->socket.update_look=1;	1122
		1123	last = tmp;
1379	}	1124	}
1380	/* See if player moving off should effect something */
1381	if (check_walk_off && ((op->move_type & tmp->move_off) &&
1382	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {
1383		1125
1384	move_apply(tmp, op, NULL);
1385	if (was_destroyed (op, tag)) {
1386	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "
1387	"leaving object\n", tmp->name, tmp->arch->name);
1388	}
1389	}
1390
1391	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1392
1393	if(tmp->above == tmp)
1394	tmp->above = NULL;
1395	last=tmp;
1396	}
1397	/* last == NULL of there are no objects on this space */	1126	/* last == NULL if there are no objects on this space */
1398	if (last==NULL) {	1127	//TODO: this makes little sense, why only update the topmost object?
1399	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1128	if (!last)
1400	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1129	map->at (x, y).flags_ = 0;
1401	* those out anyways, and if there are any flags set right now, they won't
1402	* be correct anyways.
1403	*/
1404	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1405	update_position(op->map, op->x, op->y);
1406	}
1407	else	1130	else
1408	update_object(last, UP_OBJ_REMOVE);	1131	update_object (last, UP_OBJ_REMOVE);
1409		1132
1410	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1133	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1411	update_all_los(op->map, op->x, op->y);	1134	update_all_los (map, x, y);
1412		1135	}
1413	}	1136	}
1414		1137
1415	/*	1138	/*
1416	* merge_ob(op,top):	1139	* merge_ob(op,top):
1417	*	1140	*
1418	* This function goes through all objects below and including top, and	1141	* This function goes through all objects below and including top, and
1419	* merges op to the first matching object.	1142	* merges op to the first matching object.
1420	* If top is NULL, it is calculated.	1143	* If top is NULL, it is calculated.
1421	* 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
1422	*/	1145	*/
1423		1146	object *
1424	object *merge_ob(object *op, object *top) {	1147	merge_ob (object *op, object *top)
		1148	{
1425	if(!op->nrof)	1149	if (!op->nrof)
1426	return 0;	1150	return 0;
1427	if(top==NULL)	1151
		1152	if (top)
1428	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1153	for (top = op; top && top->above; top = top->above)
		1154	;
		1155
1429	for(;top!=NULL;top=top->below) {	1156	for (; top; top = top->below)
		1157	{
1430	if(top==op)	1158	if (top == op)
1431	continue;	1159	continue;
1432	if (CAN_MERGE(op,top))	1160
1433	{	1161	if (object::can_merge (op, top))
		1162	{
1434	top->nrof+=op->nrof;	1163	top->nrof += op->nrof;
		1164
1435	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1165	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1436	op->weight = 0; /* Don't want any adjustements now */	1166	op->weight = 0; /* Don't want any adjustements now */
1437	remove_ob(op);	1167	op->destroy ();
1438	free_object(op);
1439	return top;	1168	return top;
1440	}	1169	}
1441	}	1170	}
		1171
1442	return NULL;	1172	return 0;
1443	}	1173	}
1444		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
1445	/*	1198	/*
1446	* 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
1447	* job preparing multi-part monsters	1200	* job preparing multi-part monsters.
1448	*/	1201	*/
		1202	object *
1449	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)
1450	object* tmp;	1204	{
1451	if (op->head)	1205	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1452	op=op->head;	1206	{
1453	for (tmp=op;tmp;tmp=tmp->more){
1454	tmp->x=x+tmp->arch->clone.x;	1207	tmp->x = x + tmp->arch->x;
1455	tmp->y=y+tmp->arch->clone.y;	1208	tmp->y = y + tmp->arch->y;
1456	}	1209	}
		1210
1457	return insert_ob_in_map (op, m, originator, flag);	1211	return insert_ob_in_map (op, m, originator, flag);
1458	}	1212	}
1459		1213
1460	/*	1214	/*
1461	* insert_ob_in_map (op, map, originator, flag):	1215	* insert_ob_in_map (op, map, originator, flag):
1462	* This function inserts the object in the two-way linked list	1216	* This function inserts the object in the two-way linked list
…		…
1475	* Return value:	1229	* Return value:
1476	* new object if 'op' was merged with other object	1230	* new object if 'op' was merged with other object
1477	* NULL if 'op' was destroyed	1231	* NULL if 'op' was destroyed
1478	* just 'op' otherwise	1232	* just 'op' otherwise
1479	*/	1233	*/
1480		1234	object *
1481	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)
1482	{	1236	{
		1237	assert (!op->flag [FLAG_FREED]);
		1238
1483	object *tmp, *top, *floor=NULL;	1239	object *top, *floor = NULL;
1484	sint16 x,y;
1485		1240
1486	if (QUERY_FLAG (op, FLAG_FREED)) {	1241	op->remove ();
1487	LOG (llevError, "Trying to insert freed object!\n");	1242
1488	return NULL;	1243	#if 0
1489	}	1244	if (!m->active != !op->active)
1490	if(m==NULL) {	1245	if (m->active)
1491	dump_object(op);	1246	op->activate_recursive ();
1492	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1247	else
1493	return op;	1248	op->deactivate_recursive ();
1494	}	1249	#endif
		1250
1495	if(out_of_map(m,op->x,op->y)) {	1251	if (out_of_map (m, op->x, op->y))
1496	dump_object(op);	1252	{
1497	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 ());
1498	#ifdef MANY_CORES	1254	#ifdef MANY_CORES
1499	/* 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
1500	* 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
1501	* improperly inserted.	1257	* improperly inserted.
1502	*/	1258	*/
1503	abort();	1259	abort ();
1504	#endif	1260	#endif
1505	return op;	1261	return op;
1506	}	1262	}
1507	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1263
1508	dump_object(op);	1264	if (object *more = op->more)
1509	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1265	if (!insert_ob_in_map (more, m, originator, flag))
1510	return op;	1266	return 0;
1511	}
1512	if(op->more!=NULL) {
1513	/* The part may be on a different map. */
1514		1267
1515	object *more = op->more;	1268	CLEAR_FLAG (op, FLAG_REMOVED);
1516		1269
1517	/* We really need the caller to normalize coordinates - if	1270	/* Ideally, the caller figures this out. However, it complicates a lot
1518	* we set the map, that doesn't work if the location is within	1271	* of areas of callers (eg, anything that uses find_free_spot would now
1519	* a map and this is straddling an edge. So only if coordinate	1272	* need extra work
1520	* is clear wrong do we normalize it.	1273	*/
		1274	if (!xy_normalise (m, op->x, op->y))
		1275	return 0;
		1276
		1277	op->map = m;
		1278	mapspace &ms = op->ms ();
		1279
		1280	/* this has to be done after we translate the coordinates.
		1281	*/
		1282	if (op->nrof && !(flag & INS_NO_MERGE))
		1283	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
		1284	if (object::can_merge (op, tmp))
1521	*/	1285	{
1522	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1286	op->nrof += tmp->nrof;
1523	/* Debugging information so you can see the last coordinates this object had */	1287	tmp->destroy ();
1524	more->ox = more->x;
1525	more->oy = more->y;
1526	more->map = get_map_from_coord(m, &more->x, &more->y);
1527	} else if (!more->map) {
1528	/* For backwards compatibility - when not dealing with tiled maps,
1529	* more->map should always point to the parent.
1530	*/
1531	more->map = m;
1532	}	1288	}
1533		1289
1534	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1290	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1535	if ( ! op->head)	1291	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1536	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1292
1537	return NULL;	1293	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1294	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1295
		1296	if (flag & INS_BELOW_ORIGINATOR)
		1297	{
		1298	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1299	{
		1300	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1301	abort ();
1538	}	1302	}
		1303
		1304	op->above = originator;
		1305	op->below = originator->below;
		1306
		1307	if (op->below)
		1308	op->below->above = op;
		1309	else
		1310	ms.bot = op;
		1311
		1312	/* since *below* originator, no need to update top */
		1313	originator->below = op;
		1314	}
		1315	else
1539	}	1316	{
1540	CLEAR_FLAG(op,FLAG_REMOVED);	1317	top = ms.bot;
1541		1318
1542	/* Debugging information so you can see the last coordinates this object had */	1319	/* If there are other objects, then */
1543	op->ox=op->x;	1320	if ((!(flag & INS_MAP_LOAD)) && top)
1544	op->oy=op->y;	1321	{
		1322	object *last = 0;
1545		1323
1546	/* Ideally, the caller figures this out. However, it complicates a lot	1324	/*
1547	* of areas of callers (eg, anything that uses find_free_spot would now	1325	* If there are multiple objects on this space, we do some trickier handling.
1548	* need extra work	1326	* We've already dealt with merging if appropriate.
1549	*/	1327	* Generally, we want to put the new object on top. But if
1550	op->map=get_map_from_coord(m, &op->x, &op->y);	1328	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1551	x = op->x;	1329	* floor, we want to insert above that and no further.
1552	y = op->y;	1330	* Also, if there are spell objects on this space, we stop processing
		1331	* once we get to them. This reduces the need to traverse over all of
		1332	* them when adding another one - this saves quite a bit of cpu time
		1333	* when lots of spells are cast in one area. Currently, it is presumed
		1334	* that flying non pickable objects are spell objects.
		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;
1553		1340
1554	/* this has to be done after we translate the coordinates.	1341	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1555	*/	1342	{
1556	if(op->nrof && !(flag & INS_NO_MERGE)) {	1343	/* We insert above top, so we want this object below this */
1557	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1344	top = top->below;
1558	if (CAN_MERGE(op,tmp)) {	1345	break;
1559	op->nrof+=tmp->nrof;	1346	}
1560	remove_ob(tmp);	1347
1561	free_object(tmp);	1348	last = top;
1562	}	1349	}
1563	}
1564		1350
1565	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1351	/* Don't want top to be NULL, so set it to the last valid object */
1566	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1352	top = last;
1567	if (!QUERY_FLAG(op, FLAG_ALIVE))
1568	CLEAR_FLAG(op, FLAG_NO_STEAL);
1569		1353
1570	if (flag & INS_BELOW_ORIGINATOR) {	1354	/* We let update_position deal with figuring out what the space
1571	if (originator->map != op->map || originator->x != op->x ||	1355	* looks like instead of lots of conditions here.
1572	originator->y != op->y) {	1356	* makes things faster, and effectively the same result.
1573	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1357	*/
1574	abort();	1358
		1359	/* Have object 'fall below' other objects that block view.
		1360	* Unless those objects are exits.
		1361	* If INS_ON_TOP is used, don't do this processing
		1362	* Need to find the object that in fact blocks view, otherwise
		1363	* stacking is a bit odd.
		1364	*/
		1365	if (!(flag & INS_ON_TOP)
		1366	&& ms.flags () & P_BLOCKSVIEW
		1367	&& (op->face && !faces [op->face].visibility))
		1368	{
		1369	for (last = top; last != floor; last = last->below)
		1370	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1371	break;
		1372
		1373	/* Check to see if we found the object that blocks view,
		1374	* and make sure we have a below pointer for it so that
		1375	* we can get inserted below this one, which requires we
		1376	* set top to the object below us.
		1377	*/
		1378	if (last && last->below && last != floor)
		1379	top = last->below;
		1380	}
		1381	} /* If objects on this space */
		1382	if (flag & INS_MAP_LOAD)
		1383	top = ms.top;
		1384
		1385	if (flag & INS_ABOVE_FLOOR_ONLY)
		1386	top = floor;
		1387
		1388	/* Top is the object that our object (op) is going to get inserted above.
		1389	*/
		1390
		1391	/* First object on this space */
		1392	if (!top)
		1393	{
		1394	op->above = ms.bot;
		1395
		1396	if (op->above)
		1397	op->above->below = op;
		1398
		1399	op->below = 0;
		1400	ms.bot = op;
1575	}	1401	}
1576	op->above = originator;
1577	op->below = originator->below;
1578	if (op->below) op->below->above = op;
1579	else SET_MAP_OB(op->map, op->x, op->y, op);
1580	/* since *below* originator, no need to update top */
1581	originator->below = op;
1582	} else {	1402	else
1583	/* If there are other objects, then */
1584	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1585	object *last=NULL;
1586	/*
1587	* If there are multiple objects on this space, we do some trickier handling.
1588	* We've already dealt with merging if appropriate.
1589	* Generally, we want to put the new object on top. But if
1590	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1591	* floor, we want to insert above that and no further.
1592	* Also, if there are spell objects on this space, we stop processing
1593	* once we get to them. This reduces the need to traverse over all of
1594	* them when adding another one - this saves quite a bit of cpu time
1595	* when lots of spells are cast in one area. Currently, it is presumed
1596	* that flying non pickable objects are spell objects.
1597	*/
1598
1599	while (top != NULL) {
1600	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1601	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1602	if (QUERY_FLAG(top, FLAG_NO_PICK)
1603	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1604	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1605	{
1606	/* We insert above top, so we want this object below this */
1607	top=top->below;
1608	break;
1609	}
1610	last = top;
1611	top = top->above;
1612	}
1613	/* Don't want top to be NULL, so set it to the last valid object */
1614	top = last;
1615
1616	/* We let update_position deal with figuring out what the space
1617	* looks like instead of lots of conditions here.
1618	* makes things faster, and effectively the same result.
1619	*/
1620
1621	/* Have object 'fall below' other objects that block view.
1622	* Unless those objects are exits, type 66
1623	* If INS_ON_TOP is used, don't do this processing
1624	* Need to find the object that in fact blocks view, otherwise
1625	* stacking is a bit odd.
1626	*/
1627	if (!(flag & INS_ON_TOP) &&
1628	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1629	(op->face && !op->face->visibility)) {
1630	for (last=top; last != floor; last=last->below)
1631	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1632	/* Check to see if we found the object that blocks view,
1633	* and make sure we have a below pointer for it so that
1634	* we can get inserted below this one, which requires we
1635	* set top to the object below us.
1636	*/
1637	if (last && last->below && last != floor) top=last->below;
1638	}
1639	} /* If objects on this space */
1640	if (flag & INS_MAP_LOAD)
1641	top = GET_MAP_TOP(op->map,op->x,op->y);
1642	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;
1643
1644	/* Top is the object that our object (op) is going to get inserted above.
1645	*/
1646
1647	/* First object on this space */
1648	if (!top) {
1649	op->above = GET_MAP_OB(op->map, op->x, op->y);
1650	if (op->above) op->above->below = op;
1651	op->below = NULL;
1652	SET_MAP_OB(op->map, op->x, op->y, op);
1653	} else { /* get inserted into the stack above top */	1403	{ /* get inserted into the stack above top */
1654	op->above = top->above;	1404	op->above = top->above;
		1405
		1406	if (op->above)
1655	if (op->above) op->above->below = op;	1407	op->above->below = op;
		1408
1656	op->below = top;	1409	op->below = top;
1657	top->above = op;	1410	top->above = op;
1658	}	1411	}
		1412
1659	if (op->above==NULL)	1413	if (!op->above)
1660	SET_MAP_TOP(op->map,op->x, op->y, op);	1414	ms.top = op;
1661	} /* else not INS_BELOW_ORIGINATOR */	1415	} /* else not INS_BELOW_ORIGINATOR */
1662		1416
1663	if(op->type==PLAYER)	1417	if (op->type == PLAYER)
		1418	{
1664	op->contr->do_los=1;	1419	op->contr->do_los = 1;
		1420	++op->map->players;
		1421	op->map->touch ();
		1422	}
1665		1423
		1424	op->map->dirty = true;
		1425
1666	/* 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
1667	* it, so save a few ticks and start from there.	1427	* it, so save a few ticks and start from there.
1668	*/	1428	*/
1669	if (!(flag & INS_MAP_LOAD))	1429	if (!(flag & INS_MAP_LOAD))
1670	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1430	if (object *pl = ms.player ())
1671	if (tmp->type == PLAYER)	1431	pl->contr->ns->floorbox_update ();
1672	tmp->contr->socket.update_look=1;
1673	}
1674		1432
1675	/* If this object glows, it may affect lighting conditions that are	1433	/* If this object glows, it may affect lighting conditions that are
1676	* visible to others on this map. But update_all_los is really	1434	* visible to others on this map. But update_all_los is really
1677	* an inefficient way to do this, as it means los for all players	1435	* an inefficient way to do this, as it means los for all players
1678	* on the map will get recalculated. The players could very well	1436	* on the map will get recalculated. The players could very well
1679	* be far away from this change and not affected in any way -	1437	* be far away from this change and not affected in any way -
1680	* this should get redone to only look for players within range,	1438	* this should get redone to only look for players within range,
1681	* or just updating the P_NEED_UPDATE for spaces within this area	1439	* or just updating the P_UPTODATE for spaces within this area
1682	* of effect may be sufficient.	1440	* of effect may be sufficient.
1683	*/	1441	*/
1684	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1442	if (op->map->darkness && (op->glow_radius != 0))
1685	update_all_los(op->map, op->x, op->y);	1443	update_all_los (op->map, op->x, op->y);
1686		1444
1687
1688	/* updates flags (blocked, alive, no magic, etc) for this map space */	1445	/* updates flags (blocked, alive, no magic, etc) for this map space */
1689	update_object(op,UP_OBJ_INSERT);	1446	update_object (op, UP_OBJ_INSERT);
1690		1447
		1448	INVOKE_OBJECT (INSERT, op);
1691		1449
1692	/* Don't know if moving this to the end will break anything. However,	1450	/* Don't know if moving this to the end will break anything. However,
1693	* we want to have update_look set above before calling this.	1451	* we want to have floorbox_update called before calling this.
1694	*	1452	*
1695	* check_move_on() must be after this because code called from	1453	* check_move_on() must be after this because code called from
1696	* check_move_on() depends on correct map flags (so functions like	1454	* check_move_on() depends on correct map flags (so functions like
1697	* blocked() and wall() work properly), and these flags are updated by	1455	* blocked() and wall() work properly), and these flags are updated by
1698	* update_object().	1456	* update_object().
1699	*/	1457	*/
1700		1458
1701	/* if this is not the head or flag has been passed, don't check walk on status */	1459	/* if this is not the head or flag has been passed, don't check walk on status */
1702
1703	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1460	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
		1461	{
1704	if (check_move_on(op, originator))	1462	if (check_move_on (op, originator))
1705	return NULL;	1463	return 0;
1706		1464
1707	/* If we are a multi part object, lets work our way through the check	1465	/* If we are a multi part object, lets work our way through the check
1708	* walk on's.	1466	* walk on's.
1709	*/	1467	*/
1710	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1468	for (object *tmp = op->more; tmp; tmp = tmp->more)
1711	if (check_move_on (tmp, originator))	1469	if (check_move_on (tmp, originator))
1712	return NULL;	1470	return 0;
1713	}	1471	}
		1472
1714	return op;	1473	return op;
1715	}	1474	}
1716		1475
1717	/* this function inserts an object in the map, but if it	1476	/* this function inserts an object in the map, but if it
1718	* finds an object of its own type, it'll remove that one first.	1477	* finds an object of its own type, it'll remove that one first.
1719	* op is the object to insert it under: supplies x and the map.	1478	* op is the object to insert it under: supplies x and the map.
1720	*/	1479	*/
		1480	void
1721	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1481	replace_insert_ob_in_map (const char *arch_string, object *op)
1722	object *tmp;	1482	{
1723	object *tmp1;	1483	object *tmp, *tmp1;
1724		1484
1725	/* first search for itself and remove any old instances */	1485	/* first search for itself and remove any old instances */
1726		1486
1727	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1487	for (tmp = op->ms ().bot; tmp; tmp = tmp->above)
1728	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1488	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1729	remove_ob(tmp);	1489	tmp->destroy ();
1730	free_object(tmp);
1731	}
1732	}
1733		1490
1734	tmp1=arch_to_object(find_archetype(arch_string));	1491	tmp1 = arch_to_object (archetype::find (arch_string));
1735		1492
1736		1493	tmp1->x = op->x;
1737	tmp1->x = op->x; tmp1->y = op->y;	1494	tmp1->y = op->y;
1738	insert_ob_in_map(tmp1,op->map,op,0);	1495	insert_ob_in_map (tmp1, op->map, op, 0);
1739	}	1496	}
		1497
		1498	object *
		1499	object::insert_at (object *where, object *originator, int flags)
		1500	{
		1501	return where->map->insert (this, where->x, where->y, originator, flags);
		1502	}
1740		1503
1741	/*	1504	/*
1742	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1505	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1743	* is returned contains nr objects, and the remaining parts contains	1506	* is returned contains nr objects, and the remaining parts contains
1744	* the rest (or is removed and freed if that number is 0).	1507	* the rest (or is removed and freed if that number is 0).
1745	* On failure, NULL is returned, and the reason put into the	1508	* On failure, NULL is returned, and the reason put into the
1746	* global static errmsg array.	1509	* global static errmsg array.
1747	*/	1510	*/
1748		1511	object *
1749	object *get_split_ob(object *orig_ob, uint32 nr) {	1512	get_split_ob (object *orig_ob, uint32 nr)
		1513	{
1750	object *newob;	1514	object *newob;
1751	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1515	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1752		1516
1753	if(orig_ob->nrof<nr) {	1517	if (orig_ob->nrof < nr)
1754	sprintf(errmsg,"There are only %d %ss.",	1518	{
1755	orig_ob->nrof?orig_ob->nrof:1, orig_ob->name);	1519	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1756	return NULL;	1520	return NULL;
1757	}	1521	}
		1522
1758	newob = object_create_clone(orig_ob);	1523	newob = object_create_clone (orig_ob);
		1524
1759	if((orig_ob->nrof-=nr)<1) {	1525	if ((orig_ob->nrof -= nr) < 1)
1760	if ( ! is_removed)	1526	orig_ob->destroy (1);
1761	remove_ob(orig_ob);
1762	free_object2(orig_ob, 1);
1763	}
1764	else if ( ! is_removed) {	1527	else if (!is_removed)
		1528	{
1765	if(orig_ob->env!=NULL)	1529	if (orig_ob->env != NULL)
1766	sub_weight (orig_ob->env,orig_ob->weight*nr);	1530	sub_weight (orig_ob->env, orig_ob->weight * nr);
1767	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1531	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1532	{
1768	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1533	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1769	LOG(llevDebug,
1770	"Error, Tried to split object whose map is not in memory.\n");	1534	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1771	return NULL;	1535	return NULL;
1772	}	1536	}
1773	}	1537	}
		1538
1774	newob->nrof=nr;	1539	newob->nrof = nr;
1775		1540
1776	return newob;	1541	return newob;
1777	}	1542	}
1778		1543
1779	/*	1544	/*
1780	* decrease_ob_nr(object, number) decreases a specified number from	1545	* decrease_ob_nr(object, number) decreases a specified number from
1781	* the amount of an object. If the amount reaches 0, the object	1546	* the amount of an object. If the amount reaches 0, the object
1782	* is subsequently removed and freed.	1547	* is subsequently removed and freed.
1783	*	1548	*
1784	* Return value: 'op' if something is left, NULL if the amount reached 0	1549	* Return value: 'op' if something is left, NULL if the amount reached 0
1785	*/	1550	*/
1786		1551	object *
1787	object *decrease_ob_nr (object *op, uint32 i)	1552	decrease_ob_nr (object *op, uint32 i)
1788	{	1553	{
1789	object *tmp;	1554	object *tmp;
1790	player *pl;
1791		1555
1792	if (i == 0) /* objects with op->nrof require this check */	1556	if (i == 0) /* objects with op->nrof require this check */
1793	return op;	1557	return op;
1794		1558
1795	if (i > op->nrof)	1559	if (i > op->nrof)
1796	i = op->nrof;	1560	i = op->nrof;
1797		1561
1798	if (QUERY_FLAG (op, FLAG_REMOVED))	1562	if (QUERY_FLAG (op, FLAG_REMOVED))
		1563	op->nrof -= i;
		1564	else if (op->env)
		1565	{
		1566	/* is this object in the players inventory, or sub container
		1567	* therein?
		1568	*/
		1569	tmp = op->in_player ();
		1570	/* nope. Is this a container the player has opened?
		1571	* If so, set tmp to that player.
		1572	* IMO, searching through all the players will mostly
		1573	* likely be quicker than following op->env to the map,
		1574	* and then searching the map for a player.
		1575	*/
		1576	if (!tmp)
		1577	for_all_players (pl)
		1578	if (pl->ob->container == op->env)
		1579	{
		1580	tmp = pl->ob;
		1581	break;
		1582	}
		1583
		1584	if (i < op->nrof)
		1585	{
		1586	sub_weight (op->env, op->weight * i);
		1587	op->nrof -= i;
		1588	if (tmp)
		1589	esrv_send_item (tmp, op);
		1590	}
		1591	else
		1592	{
		1593	op->remove ();
		1594	op->nrof = 0;
		1595	if (tmp)
		1596	esrv_del_item (tmp->contr, op->count);
		1597	}
1799	{	1598	}
		1599	else
		1600	{
		1601	object *above = op->above;
		1602
		1603	if (i < op->nrof)
1800	op->nrof -= i;	1604	op->nrof -= i;
1801	}	1605	else
1802	else if (op->env != NULL)
1803	{
1804	/* is this object in the players inventory, or sub container
1805	* therein?
1806	*/	1606	{
1807	tmp = is_player_inv (op->env);	1607	op->remove ();
1808	/* nope. Is this a container the player has opened?	1608	op->nrof = 0;
1809	* If so, set tmp to that player.
1810	* IMO, searching through all the players will mostly
1811	* likely be quicker than following op->env to the map,
1812	* and then searching the map for a player.
1813	*/
1814	if (!tmp) {
1815	for (pl=first_player; pl; pl=pl->next)
1816	if (pl->ob->container == op->env) break;
1817	if (pl) tmp=pl->ob;
1818	else tmp=NULL;
1819	}	1609	}
1820		1610
1821	if (i < op->nrof) {
1822	sub_weight (op->env, op->weight * i);
1823	op->nrof -= i;
1824	if (tmp) {
1825	esrv_send_item(tmp, op);
1826	}
1827	} else {
1828	remove_ob (op);
1829	op->nrof = 0;
1830	if (tmp) {
1831	esrv_del_item(tmp->contr, op->count);
1832	}
1833	}
1834	}
1835	else
1836	{
1837	object *above = op->above;
1838
1839	if (i < op->nrof) {
1840	op->nrof -= i;
1841	} else {
1842	remove_ob (op);
1843	op->nrof = 0;
1844	}
1845	/* Since we just removed op, op->above is null */	1611	/* Since we just removed op, op->above is null */
1846	for (tmp = above; tmp != NULL; tmp = tmp->above)	1612	for (tmp = above; tmp; tmp = tmp->above)
1847	if (tmp->type == PLAYER) {	1613	if (tmp->type == PLAYER)
		1614	{
1848	if (op->nrof)	1615	if (op->nrof)
1849	esrv_send_item(tmp, op);	1616	esrv_send_item (tmp, op);
1850	else	1617	else
1851	esrv_del_item(tmp->contr, op->count);	1618	esrv_del_item (tmp->contr, op->count);
1852	}	1619	}
1853	}	1620	}
1854		1621
1855	if (op->nrof) {	1622	if (op->nrof)
1856	return op;	1623	return op;
1857	} else {	1624	else
1858	free_object (op);	1625	{
		1626	op->destroy ();
1859	return NULL;	1627	return 0;
1860	}	1628	}
1861	}	1629	}
1862		1630
1863	/*	1631	/*
1864	* add_weight(object, weight) adds the specified weight to an object,	1632	* add_weight(object, weight) adds the specified weight to an object,
1865	* and also updates how much the environment(s) is/are carrying.	1633	* and also updates how much the environment(s) is/are carrying.
1866	*/	1634	*/
1867		1635	void
1868	void add_weight (object *op, signed long weight) {	1636	add_weight (object *op, signed long weight)
		1637	{
1869	while (op!=NULL) {	1638	while (op != NULL)
		1639	{
1870	if (op->type == CONTAINER) {	1640	if (op->type == CONTAINER)
1871	weight=(signed long)(weight*(100-op->stats.Str)/100);	1641	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1872	}	1642
1873	op->carrying+=weight;	1643	op->carrying += weight;
1874	op=op->env;	1644	op = op->env;
1875	}	1645	}
1876	}	1646	}
1877		1647
		1648	object *
		1649	insert_ob_in_ob (object *op, object *where)
		1650	{
		1651	if (!where)
		1652	{
		1653	char *dump = dump_object (op);
		1654	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1655	free (dump);
		1656	return op;
		1657	}
		1658
		1659	if (where->head_ () != where)
		1660	{
		1661	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1662	where = where->head;
		1663	}
		1664
		1665	return where->insert (op);
		1666	}
		1667
1878	/*	1668	/*
1879	* insert_ob_in_ob(op,environment):	1669	* env->insert (op)
1880	* This function inserts the object op in the linked list	1670	* This function inserts the object op in the linked list
1881	* inside the object environment.	1671	* inside the object environment.
1882	*	1672	*
1883	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1884	* the inventory at the last position or next to other objects of the same
1885	* type.
1886	* Frank: Now sorted by type, archetype and magic!
1887	*
1888	* The function returns now pointer to inserted item, and return value can	1673	* The function returns now pointer to inserted item, and return value can
1889	* be != op, if items are merged. -Tero	1674	* be != op, if items are merged. -Tero
1890	*/	1675	*/
1891		1676	object *
1892	object *insert_ob_in_ob(object *op,object *where) {	1677	object::insert (object *op)
		1678	{
1893	object *tmp, *otmp;	1679	object *tmp, *otmp;
1894		1680
1895	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1681	if (!QUERY_FLAG (op, FLAG_REMOVED))
1896	dump_object(op);	1682	op->remove ();
1897	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1683
1898	return op;
1899	}
1900	if(where==NULL) {
1901	dump_object(op);
1902	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1903	return op;
1904	}
1905	if (where->head) {
1906	LOG(llevDebug,
1907	"Warning: Tried to insert object wrong part of multipart object.\n");
1908	where = where->head;
1909	}
1910	if (op->more) {	1684	if (op->more)
		1685	{
1911	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1686	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1912	op->name, op->count);
1913	return op;	1687	return op;
1914	}	1688	}
		1689
1915	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1690	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1916	CLEAR_FLAG(op, FLAG_REMOVED);	1691	CLEAR_FLAG (op, FLAG_REMOVED);
1917	if(op->nrof) {	1692	if (op->nrof)
		1693	{
1918	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1694	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1919	if ( CAN_MERGE(tmp,op) ) {	1695	if (object::can_merge (tmp, op))
		1696	{
1920	/* return the original object and remove inserted object	1697	/* return the original object and remove inserted object
1921	(client needs the original object) */	1698	(client needs the original object) */
1922	tmp->nrof += op->nrof;	1699	tmp->nrof += op->nrof;
1923	/* Weight handling gets pretty funky. Since we are adding to	1700	/* Weight handling gets pretty funky. Since we are adding to
1924	* tmp->nrof, we need to increase the weight.	1701	* tmp->nrof, we need to increase the weight.
1925	*/	1702	*/
1926	add_weight (where, op->weight*op->nrof);	1703	add_weight (this, op->weight * op->nrof);
1927	SET_FLAG(op, FLAG_REMOVED);	1704	SET_FLAG (op, FLAG_REMOVED);
1928	free_object(op); /* free the inserted object */	1705	op->destroy (); /* free the inserted object */
1929	op = tmp;	1706	op = tmp;
1930	remove_ob (op); /* and fix old object's links */	1707	op->remove (); /* and fix old object's links */
1931	CLEAR_FLAG(op, FLAG_REMOVED);	1708	CLEAR_FLAG (op, FLAG_REMOVED);
1932	break;	1709	break;
1933	}	1710	}
1934		1711
1935	/* I assume combined objects have no inventory	1712	/* I assume combined objects have no inventory
1936	* We add the weight - this object could have just been removed	1713	* We add the weight - this object could have just been removed
1937	* (if it was possible to merge). calling remove_ob will subtract	1714	* (if it was possible to merge). calling remove_ob will subtract
1938	* the weight, so we need to add it in again, since we actually do	1715	* the weight, so we need to add it in again, since we actually do
1939	* the linking below	1716	* the linking below
1940	*/	1717	*/
1941	add_weight (where, op->weight*op->nrof);	1718	add_weight (this, op->weight * op->nrof);
		1719	}
1942	} else	1720	else
1943	add_weight (where, (op->weight+op->carrying));	1721	add_weight (this, (op->weight + op->carrying));
1944		1722
1945	otmp=is_player_inv(where);	1723	otmp = this->in_player ();
1946	if (otmp&&otmp->contr!=NULL) {	1724	if (otmp && otmp->contr)
1947	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1725	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1948	fix_player(otmp);	1726	otmp->update_stats ();
1949	}
1950		1727
1951	op->map=NULL;	1728	op->map = 0;
1952	op->env=where;	1729	op->env = this;
1953	op->above=NULL;	1730	op->above = 0;
1954	op->below=NULL;	1731	op->below = 0;
1955	op->x=0,op->y=0;	1732	op->x = 0, op->y = 0;
1956	op->ox=0,op->oy=0;
1957		1733
1958	/* reset the light list and los of the players on the map */	1734	/* reset the light list and los of the players on the map */
1959	if((op->glow_radius!=0)&&where->map)	1735	if ((op->glow_radius != 0) && map)
1960	{	1736	{
1961	#ifdef DEBUG_LIGHTS	1737	#ifdef DEBUG_LIGHTS
1962	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1738	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1963	op->name);
1964	#endif /* DEBUG_LIGHTS */	1739	#endif /* DEBUG_LIGHTS */
1965	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1740	if (map->darkness)
		1741	update_all_los (map, x, y);
1966	}	1742	}
1967		1743
1968	/* Client has no idea of ordering so lets not bother ordering it here.	1744	/* Client has no idea of ordering so lets not bother ordering it here.
1969	* It sure simplifies this function...	1745	* It sure simplifies this function...
1970	*/	1746	*/
1971	if (where->inv==NULL)	1747	if (!inv)
1972	where->inv=op;	1748	inv = op;
1973	else {	1749	else
		1750	{
1974	op->below = where->inv;	1751	op->below = inv;
1975	op->below->above = op;	1752	op->below->above = op;
1976	where->inv = op;	1753	inv = op;
1977	}	1754	}
		1755
		1756	INVOKE_OBJECT (INSERT, this);
		1757
1978	return op;	1758	return op;
1979	}	1759	}
1980		1760
1981	/*	1761	/*
1982	* Checks if any objects has a move_type that matches objects	1762	* Checks if any objects has a move_type that matches objects
…		…
1996	*	1776	*
1997	* MSW 2001-07-08: Check all objects on space, not just those below	1777	* MSW 2001-07-08: Check all objects on space, not just those below
1998	* object being inserted. insert_ob_in_map may not put new objects	1778	* object being inserted. insert_ob_in_map may not put new objects
1999	* on top.	1779	* on top.
2000	*/	1780	*/
2001		1781	int
2002	int check_move_on (object *op, object *originator)	1782	check_move_on (object *op, object *originator)
2003	{	1783	{
2004	object *tmp;	1784	object *tmp;
2005	tag_t tag;
2006	mapstruct *m=op->map;	1785	maptile *m = op->map;
2007	int x=op->x, y=op->y;	1786	int x = op->x, y = op->y;
		1787
2008	MoveType move_on, move_slow, move_block;	1788	MoveType move_on, move_slow, move_block;
2009		1789
2010	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1790	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2011	return 0;	1791	return 0;
2012		1792
2013	tag = op->count;
2014
2015	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1793	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
2016	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1794	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
2017	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1795	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
2018		1796
2019	/* if nothing on this space will slow op down or be applied,	1797	/* if nothing on this space will slow op down or be applied,
2020	* no need to do checking below. have to make sure move_type	1798	* no need to do checking below. have to make sure move_type
2021	* is set, as lots of objects don't have it set - we treat that	1799	* is set, as lots of objects don't have it set - we treat that
2022	* as walking.	1800	* as walking.
2023	*/	1801	*/
2024	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1802	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
2025	return 0;	1803	return 0;
2026		1804
2027	/* This is basically inverse logic of that below - basically,	1805	/* This is basically inverse logic of that below - basically,
2028	* if the object can avoid the move on or slow move, they do so,	1806	* if the object can avoid the move on or slow move, they do so,
2029	* but can't do it if the alternate movement they are using is	1807	* but can't do it if the alternate movement they are using is
2030	* blocked. Logic on this seems confusing, but does seem correct.	1808	* blocked. Logic on this seems confusing, but does seem correct.
2031	*/	1809	*/
2032	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1810	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
2033	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1811	return 0;
2034		1812
2035	/* The objects have to be checked from top to bottom.	1813	/* The objects have to be checked from top to bottom.
2036	* Hence, we first go to the top:	1814	* Hence, we first go to the top:
2037	*/	1815	*/
2038		1816
2039	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1817	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
2040	tmp->above!=NULL; tmp=tmp->above) {	1818	{
2041	/* Trim the search when we find the first other spell effect	1819	/* Trim the search when we find the first other spell effect
2042	* this helps performance so that if a space has 50 spell objects,	1820	* this helps performance so that if a space has 50 spell objects,
2043	* we don't need to check all of them.	1821	* we don't need to check all of them.
2044	*/	1822	*/
2045	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1823	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1824	break;
		1825	}
		1826
		1827	for (; tmp; tmp = tmp->below)
2046	}	1828	{
2047	for(;tmp!=NULL; tmp=tmp->below) {	1829	if (tmp == op)
2048	if (tmp == op) continue; /* Can't apply yourself */	1830	continue; /* Can't apply yourself */
2049		1831
2050	/* Check to see if one of the movement types should be slowed down.	1832	/* Check to see if one of the movement types should be slowed down.
2051	* Second check makes sure that the movement types not being slowed	1833	* Second check makes sure that the movement types not being slowed
2052	* (~slow_move) is not blocked on this space - just because the	1834	* (~slow_move) is not blocked on this space - just because the
2053	* space doesn't slow down swimming (for example), if you can't actually	1835	* space doesn't slow down swimming (for example), if you can't actually
2054	* swim on that space, can't use it to avoid the penalty.	1836	* swim on that space, can't use it to avoid the penalty.
2055	*/	1837	*/
2056	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1838	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1839	{
2057	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1840	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2058	((op->move_type & tmp->move_slow) &&
2059	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1841	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1842	{
2060		1843
2061	float diff;	1844	float
2062
2063	diff = tmp->move_slow_penalty*FABS(op->speed);	1845	diff = tmp->move_slow_penalty * fabs (op->speed);
		1846
2064	if (op->type == PLAYER) {	1847	if (op->type == PLAYER)
2065	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1848	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
2066	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1849	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
2067	diff /= 4.0;	1850	diff /= 4.0;
2068	}	1851
2069	}
2070	op->speed_left -= diff;	1852	op->speed_left -= diff;
2071	}	1853	}
2072	}	1854	}
2073		1855
2074	/* Basically same logic as above, except now for actual apply. */	1856	/* Basically same logic as above, except now for actual apply. */
2075	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1857	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2076	((op->move_type & tmp->move_on) &&
2077	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1858	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2078		1859	{
2079	move_apply(tmp, op, originator);	1860	move_apply (tmp, op, originator);
		1861
2080	if (was_destroyed (op, tag))	1862	if (op->destroyed ())
2081	return 1;	1863	return 1;
2082		1864
2083	/* what the person/creature stepped onto has moved the object	1865	/* what the person/creature stepped onto has moved the object
2084	* someplace new. Don't process any further - if we did,	1866	* someplace new. Don't process any further - if we did,
2085	* have a feeling strange problems would result.	1867	* have a feeling strange problems would result.
2086	*/	1868	*/
2087	if (op->map != m || op->x != x || op->y != y) return 0;	1869	if (op->map != m || op->x != x || op->y != y)
		1870	return 0;
2088	}	1871	}
2089	}	1872	}
		1873
2090	return 0;	1874	return 0;
2091	}	1875	}
2092		1876
2093	/*	1877	/*
2094	* present_arch(arch, map, x, y) searches for any objects with	1878	* present_arch(arch, map, x, y) searches for any objects with
2095	* a matching archetype at the given map and coordinates.	1879	* a matching archetype at the given map and coordinates.
2096	* The first matching object is returned, or NULL if none.	1880	* The first matching object is returned, or NULL if none.
2097	*/	1881	*/
2098		1882	object *
2099	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1883	present_arch (const archetype *at, maptile *m, int x, int y)
2100	object *tmp;	1884	{
2101	if(m==NULL || out_of_map(m,x,y)) {	1885	if (!m || out_of_map (m, x, y))
		1886	{
2102	LOG(llevError,"Present_arch called outside map.\n");	1887	LOG (llevError, "Present_arch called outside map.\n");
2103	return NULL;	1888	return NULL;
2104	}	1889	}
2105	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1890
		1891	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2106	if(tmp->arch == at)	1892	if (tmp->arch == at)
2107	return tmp;	1893	return tmp;
		1894
2108	return NULL;	1895	return NULL;
2109	}	1896	}
2110		1897
2111	/*	1898	/*
2112	* present(type, map, x, y) searches for any objects with	1899	* present(type, map, x, y) searches for any objects with
2113	* a matching type variable at the given map and coordinates.	1900	* a matching type variable at the given map and coordinates.
2114	* The first matching object is returned, or NULL if none.	1901	* The first matching object is returned, or NULL if none.
2115	*/	1902	*/
2116		1903	object *
2117	object *present(unsigned char type,mapstruct *m, int x,int y) {	1904	present (unsigned char type, maptile *m, int x, int y)
2118	object *tmp;	1905	{
2119	if(out_of_map(m,x,y)) {	1906	if (out_of_map (m, x, y))
		1907	{
2120	LOG(llevError,"Present called outside map.\n");	1908	LOG (llevError, "Present called outside map.\n");
2121	return NULL;	1909	return NULL;
2122	}	1910	}
2123	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1911
		1912	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2124	if(tmp->type==type)	1913	if (tmp->type == type)
2125	return tmp;	1914	return tmp;
		1915
2126	return NULL;	1916	return NULL;
2127	}	1917	}
2128		1918
2129	/*	1919	/*
2130	* present_in_ob(type, object) searches for any objects with	1920	* present_in_ob(type, object) searches for any objects with
2131	* a matching type variable in the inventory of the given object.	1921	* a matching type variable in the inventory of the given object.
2132	* The first matching object is returned, or NULL if none.	1922	* The first matching object is returned, or NULL if none.
2133	*/	1923	*/
2134		1924	object *
2135	object *present_in_ob(unsigned char type, const object *op) {	1925	present_in_ob (unsigned char type, const object *op)
2136	object *tmp;	1926	{
2137	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1927	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2138	if(tmp->type==type)	1928	if (tmp->type == type)
2139	return tmp;	1929	return tmp;
		1930
2140	return NULL;	1931	return NULL;
2141	}	1932	}
2142		1933
2143	/*	1934	/*
2144	* present_in_ob (type, str, object) searches for any objects with	1935	* present_in_ob (type, str, object) searches for any objects with
…		…
2152	* str is the string to match against. Note that we match against	1943	* str is the string to match against. Note that we match against
2153	* the object name, not the archetype name. this is so that the	1944	* the object name, not the archetype name. this is so that the
2154	* spell code can use one object type (force), but change it's name	1945	* spell code can use one object type (force), but change it's name
2155	* to be unique.	1946	* to be unique.
2156	*/	1947	*/
2157		1948	object *
2158	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1949	present_in_ob_by_name (int type, const char *str, const object *op)
2159	object *tmp;	1950	{
2160
2161	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1951	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2162	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1952	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2163	return tmp;	1953	return tmp;
2164	}	1954
2165	return NULL;	1955	return 0;
2166	}	1956	}
2167		1957
2168	/*	1958	/*
2169	* present_arch_in_ob(archetype, object) searches for any objects with	1959	* present_arch_in_ob(archetype, object) searches for any objects with
2170	* a matching archetype in the inventory of the given object.	1960	* a matching archetype in the inventory of the given object.
2171	* The first matching object is returned, or NULL if none.	1961	* The first matching object is returned, or NULL if none.
2172	*/	1962	*/
2173		1963	object *
2174	object *present_arch_in_ob(const archetype *at, const object *op) {	1964	present_arch_in_ob (const archetype *at, const object *op)
2175	object *tmp;	1965	{
2176	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1966	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2177	if( tmp->arch == at)	1967	if (tmp->arch == at)
2178	return tmp;	1968	return tmp;
		1969
2179	return NULL;	1970	return NULL;
2180	}	1971	}
2181		1972
2182	/*	1973	/*
2183	* activate recursively a flag on an object inventory	1974	* activate recursively a flag on an object inventory
2184	*/	1975	*/
		1976	void
2185	void flag_inv(object*op, int flag){	1977	flag_inv (object *op, int flag)
2186	object *tmp;	1978	{
2187	if(op->inv)	1979	if (op->inv)
2188	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1980	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1981	{
2189	SET_FLAG(tmp, flag);	1982	SET_FLAG (tmp, flag);
2190	flag_inv(tmp,flag);	1983	flag_inv (tmp, flag);
2191	}	1984	}
		1985	}
		1986
2192	}/*	1987	/*
2193	* desactivate recursively a flag on an object inventory	1988	* deactivate recursively a flag on an object inventory
2194	*/	1989	*/
		1990	void
2195	void unflag_inv(object*op, int flag){	1991	unflag_inv (object *op, int flag)
2196	object *tmp;	1992	{
2197	if(op->inv)	1993	if (op->inv)
2198	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1994	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1995	{
2199	CLEAR_FLAG(tmp, flag);	1996	CLEAR_FLAG (tmp, flag);
2200	unflag_inv(tmp,flag);	1997	unflag_inv (tmp, flag);
2201	}	1998	}
2202	}
2203
2204	/*
2205	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2206	* all it's inventory (recursively).
2207	* If checksums are used, a player will get set_cheat called for
2208	* him/her-self and all object carried by a call to this function.
2209	*/
2210
2211	void set_cheat(object *op) {
2212	SET_FLAG(op, FLAG_WAS_WIZ);
2213	flag_inv(op, FLAG_WAS_WIZ);
2214	}	1999	}
2215		2000
2216	/*	2001	/*
2217	* find_free_spot(object, map, x, y, start, stop) will search for	2002	* find_free_spot(object, map, x, y, start, stop) will search for
2218	* a spot at the given map and coordinates which will be able to contain	2003	* a spot at the given map and coordinates which will be able to contain
…		…
2232	* because arch_blocked (now ob_blocked) needs to know the movement type	2017	* because arch_blocked (now ob_blocked) needs to know the movement type
2233	* to know if the space in question will block the object. We can't use	2018	* to know if the space in question will block the object. We can't use
2234	* the archetype because that isn't correct if the monster has been	2019	* the archetype because that isn't correct if the monster has been
2235	* customized, changed states, etc.	2020	* customized, changed states, etc.
2236	*/	2021	*/
2237		2022	int
2238	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2023	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2024	{
2239	int i,index=0, flag;	2025	int index = 0, flag;
2240	static int altern[SIZEOFFREE];	2026	int altern[SIZEOFFREE];
2241		2027
2242	for(i=start;i<stop;i++) {	2028	for (int i = start; i < stop; i++)
		2029	{
2243	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2030	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2244	if(!flag)	2031	if (!flag)
2245	altern[index++]=i;	2032	altern [index++] = i;
2246		2033
2247	/* Basically, if we find a wall on a space, we cut down the search size.	2034	/* Basically, if we find a wall on a space, we cut down the search size.
2248	* In this way, we won't return spaces that are on another side of a wall.	2035	* In this way, we won't return spaces that are on another side of a wall.
2249	* This mostly work, but it cuts down the search size in all directions -	2036	* This mostly work, but it cuts down the search size in all directions -
2250	* if the space being examined only has a wall to the north and empty	2037	* if the space being examined only has a wall to the north and empty
2251	* spaces in all the other directions, this will reduce the search space	2038	* spaces in all the other directions, this will reduce the search space
2252	* to only the spaces immediately surrounding the target area, and	2039	* to only the spaces immediately surrounding the target area, and
2253	* won't look 2 spaces south of the target space.	2040	* won't look 2 spaces south of the target space.
2254	*/	2041	*/
2255	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2042	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2256	stop=maxfree[i];	2043	stop = maxfree[i];
2257	}	2044	}
2258	if(!index) return -1;
2259	return altern[RANDOM()%index];
2260	}
2261		2045
		2046	if (!index)
		2047	return -1;
		2048
		2049	return altern [rndm (index)];
		2050	}
		2051
2262	/*	2052	/*
2263	* find_first_free_spot(archetype, mapstruct, x, y) works like	2053	* find_first_free_spot(archetype, maptile, x, y) works like
2264	* find_free_spot(), but it will search max number of squares.	2054	* find_free_spot(), but it will search max number of squares.
2265	* But it will return the first available spot, not a random choice.	2055	* But it will return the first available spot, not a random choice.
2266	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2056	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2267	*/	2057	*/
2268		2058	int
2269	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2059	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2270	int i;	2060	{
2271	for(i=0;i<SIZEOFFREE;i++) {	2061	for (int i = 0; i < SIZEOFFREE; i++)
2272	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2062	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2273	return i;	2063	return i;
2274	}	2064
2275	return -1;	2065	return -1;
2276	}	2066	}
2277		2067
2278	/*	2068	/*
2279	* The function permute(arr, begin, end) randomly reorders the array	2069	* The function permute(arr, begin, end) randomly reorders the array
2280	* arr[begin..end-1].	2070	* arr[begin..end-1].
		2071	* now uses a fisher-yates shuffle, old permute was broken
2281	*/	2072	*/
		2073	static void
2282	static void permute(int *arr, int begin, int end)	2074	permute (int *arr, int begin, int end)
2283	{	2075	{
2284	int i, j, tmp, len;	2076	arr += begin;
		2077	end -= begin;
2285		2078
2286	len = end-begin;	2079	while (--end)
2287	for(i = begin; i < end; i++)	2080	swap (arr [end], arr [rndm (end + 1)]);
2288	{
2289	j = begin+RANDOM()%len;
2290
2291	tmp = arr[i];
2292	arr[i] = arr[j];
2293	arr[j] = tmp;
2294	}
2295	}	2081	}
2296		2082
2297	/* new function to make monster searching more efficient, and effective!	2083	/* new function to make monster searching more efficient, and effective!
2298	* This basically returns a randomized array (in the passed pointer) of	2084	* This basically returns a randomized array (in the passed pointer) of
2299	* the spaces to find monsters. In this way, it won't always look for	2085	* the spaces to find monsters. In this way, it won't always look for
2300	* monsters to the north first. However, the size of the array passed	2086	* monsters to the north first. However, the size of the array passed
2301	* covers all the spaces, so within that size, all the spaces within	2087	* covers all the spaces, so within that size, all the spaces within
2302	* the 3x3 area will be searched, just not in a predictable order.	2088	* the 3x3 area will be searched, just not in a predictable order.
2303	*/	2089	*/
		2090	void
2304	void get_search_arr(int *search_arr)	2091	get_search_arr (int *search_arr)
2305	{	2092	{
2306	int i;	2093	int i;
2307		2094
2308	for(i = 0; i < SIZEOFFREE; i++)	2095	for (i = 0; i < SIZEOFFREE; i++)
2309	{
2310	search_arr[i] = i;	2096	search_arr[i] = i;
2311	}
2312		2097
2313	permute(search_arr, 1, SIZEOFFREE1+1);	2098	permute (search_arr, 1, SIZEOFFREE1 + 1);
2314	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2099	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2315	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2100	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2316	}	2101	}
2317		2102
2318	/*	2103	/*
2319	* find_dir(map, x, y, exclude) will search some close squares in the	2104	* find_dir(map, x, y, exclude) will search some close squares in the
2320	* given map at the given coordinates for live objects.	2105	* given map at the given coordinates for live objects.
…		…
2325	* Perhaps incorrectly, but I'm making the assumption that exclude	2110	* Perhaps incorrectly, but I'm making the assumption that exclude
2326	* is actually want is going to try and move there. We need this info	2111	* is actually want is going to try and move there. We need this info
2327	* because we have to know what movement the thing looking to move	2112	* because we have to know what movement the thing looking to move
2328	* there is capable of.	2113	* there is capable of.
2329	*/	2114	*/
2330		2115	int
2331	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2116	find_dir (maptile *m, int x, int y, object *exclude)
		2117	{
2332	int i,max=SIZEOFFREE, mflags;	2118	int i, max = SIZEOFFREE, mflags;
		2119
2333	sint16 nx, ny;	2120	sint16 nx, ny;
2334	object *tmp;	2121	object *tmp;
2335	mapstruct *mp;	2122	maptile *mp;
		2123
2336	MoveType blocked, move_type;	2124	MoveType blocked, move_type;
2337		2125
2338	if (exclude && exclude->head) {	2126	if (exclude && exclude->head_ () != exclude)
		2127	{
2339	exclude = exclude->head;	2128	exclude = exclude->head;
2340	move_type = exclude->move_type;	2129	move_type = exclude->move_type;
2341	} else {	2130	}
		2131	else
		2132	{
2342	/* If we don't have anything, presume it can use all movement types. */	2133	/* If we don't have anything, presume it can use all movement types. */
2343	move_type=MOVE_ALL;	2134	move_type = MOVE_ALL;
		2135	}
		2136
		2137	for (i = 1; i < max; i++)
2344	}	2138	{
2345
2346	for(i=1;i<max;i++) {
2347	mp = m;	2139	mp = m;
2348	nx = x + freearr_x[i];	2140	nx = x + freearr_x[i];
2349	ny = y + freearr_y[i];	2141	ny = y + freearr_y[i];
2350		2142
2351	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2143	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2144
2352	if (mflags & P_OUT_OF_MAP) {	2145	if (mflags & P_OUT_OF_MAP)
		2146	max = maxfree[i];
		2147	else
		2148	{
		2149	mapspace &ms = mp->at (nx, ny);
		2150
		2151	blocked = ms.move_block;
		2152
		2153	if ((move_type & blocked) == move_type)
2353	max = maxfree[i];	2154	max = maxfree[i];
2354	} else {
2355	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2356
2357	if ((move_type & blocked) == move_type) {
2358	max=maxfree[i];
2359	} else if (mflags & P_IS_ALIVE) {	2155	else if (mflags & P_IS_ALIVE)
2360	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2156	{
		2157	for (tmp = ms.bot; tmp; tmp = tmp->above)
2361	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2158	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2362	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2159	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2363	break;	2160	break;
2364	}	2161
2365	}
2366	if(tmp) {	2162	if (tmp)
2367	return freedir[i];	2163	return freedir[i];
2368	}
2369	}	2164	}
2370	}	2165	}
2371	}	2166	}
		2167
2372	return 0;	2168	return 0;
2373	}	2169	}
2374		2170
2375	/*	2171	/*
2376	* distance(object 1, object 2) will return the square of the	2172	* distance(object 1, object 2) will return the square of the
2377	* distance between the two given objects.	2173	* distance between the two given objects.
2378	*/	2174	*/
2379		2175	int
2380	int distance(const object *ob1, const object *ob2) {	2176	distance (const object *ob1, const object *ob2)
2381	int i;	2177	{
2382	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2178	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2383	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2384	return i;
2385	}	2179	}
2386		2180
2387	/*	2181	/*
2388	* find_dir_2(delta-x,delta-y) will return a direction in which	2182	* find_dir_2(delta-x,delta-y) will return a direction in which
2389	* an object which has subtracted the x and y coordinates of another	2183	* an object which has subtracted the x and y coordinates of another
2390	* object, needs to travel toward it.	2184	* object, needs to travel toward it.
2391	*/	2185	*/
2392		2186	int
2393	int find_dir_2(int x, int y) {	2187	find_dir_2 (int x, int y)
		2188	{
2394	int q;	2189	int q;
2395		2190
2396	if(y)	2191	if (y)
2397	q=x*100/y;	2192	q = x * 100 / y;
2398	else if (x)	2193	else if (x)
2399	q= -300*x;	2194	q = -300 * x;
2400	else	2195	else
2401	return 0;	2196	return 0;
2402		2197
2403	if(y>0) {	2198	if (y > 0)
		2199	{
2404	if(q < -242)	2200	if (q < -242)
2405	return 3 ;	2201	return 3;
2406	if (q < -41)	2202	if (q < -41)
2407	return 2 ;	2203	return 2;
2408	if (q < 41)	2204	if (q < 41)
2409	return 1 ;	2205	return 1;
2410	if (q < 242)	2206	if (q < 242)
2411	return 8 ;	2207	return 8;
2412	return 7 ;	2208	return 7;
2413	}	2209	}
2414		2210
2415	if (q < -242)	2211	if (q < -242)
2416	return 7 ;	2212	return 7;
2417	if (q < -41)	2213	if (q < -41)
2418	return 6 ;	2214	return 6;
2419	if (q < 41)	2215	if (q < 41)
2420	return 5 ;	2216	return 5;
2421	if (q < 242)	2217	if (q < 242)
2422	return 4 ;	2218	return 4;
2423		2219
2424	return 3 ;	2220	return 3;
2425	}
2426
2427	/*
2428	* absdir(int): Returns a number between 1 and 8, which represent
2429	* the "absolute" direction of a number (it actually takes care of
2430	* "overflow" in previous calculations of a direction).
2431	*/
2432
2433	int absdir(int d) {
2434	while(d<1) d+=8;
2435	while(d>8) d-=8;
2436	return d;
2437	}	2221	}
2438		2222
2439	/*	2223	/*
2440	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2224	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2441	* between two directions (which are expected to be absolute (see absdir())	2225	* between two directions (which are expected to be absolute (see absdir())
2442	*/	2226	*/
2443		2227	int
2444	int dirdiff(int dir1, int dir2) {	2228	dirdiff (int dir1, int dir2)
		2229	{
2445	int d;	2230	int d;
		2231
2446	d = abs(dir1 - dir2);	2232	d = abs (dir1 - dir2);
2447	if(d>4)	2233	if (d > 4)
2448	d = 8 - d;	2234	d = 8 - d;
		2235
2449	return d;	2236	return d;
2450	}	2237	}
2451		2238
2452	/* peterm:	2239	/* peterm:
2453	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2240	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2456	* This basically means that if direction is 15, then it could either go	2243	* This basically means that if direction is 15, then it could either go
2457	* direction 4, 14, or 16 to get back to where we are.	2244	* direction 4, 14, or 16 to get back to where we are.
2458	* Moved from spell_util.c to object.c with the other related direction	2245	* Moved from spell_util.c to object.c with the other related direction
2459	* functions.	2246	* functions.
2460	*/	2247	*/
2461
2462	int reduction_dir[SIZEOFFREE][3] = {	2248	int reduction_dir[SIZEOFFREE][3] = {
2463	{0,0,0}, /* 0 */	2249	{0, 0, 0}, /* 0 */
2464	{0,0,0}, /* 1 */	2250	{0, 0, 0}, /* 1 */
2465	{0,0,0}, /* 2 */	2251	{0, 0, 0}, /* 2 */
2466	{0,0,0}, /* 3 */	2252	{0, 0, 0}, /* 3 */
2467	{0,0,0}, /* 4 */	2253	{0, 0, 0}, /* 4 */
2468	{0,0,0}, /* 5 */	2254	{0, 0, 0}, /* 5 */
2469	{0,0,0}, /* 6 */	2255	{0, 0, 0}, /* 6 */
2470	{0,0,0}, /* 7 */	2256	{0, 0, 0}, /* 7 */
2471	{0,0,0}, /* 8 */	2257	{0, 0, 0}, /* 8 */
2472	{8,1,2}, /* 9 */	2258	{8, 1, 2}, /* 9 */
2473	{1,2,-1}, /* 10 */	2259	{1, 2, -1}, /* 10 */
2474	{2,10,12}, /* 11 */	2260	{2, 10, 12}, /* 11 */
2475	{2,3,-1}, /* 12 */	2261	{2, 3, -1}, /* 12 */
2476	{2,3,4}, /* 13 */	2262	{2, 3, 4}, /* 13 */
2477	{3,4,-1}, /* 14 */	2263	{3, 4, -1}, /* 14 */
2478	{4,14,16}, /* 15 */	2264	{4, 14, 16}, /* 15 */
2479	{5,4,-1}, /* 16 */	2265	{5, 4, -1}, /* 16 */
2480	{4,5,6}, /* 17 */	2266	{4, 5, 6}, /* 17 */
2481	{6,5,-1}, /* 18 */	2267	{6, 5, -1}, /* 18 */
2482	{6,20,18}, /* 19 */	2268	{6, 20, 18}, /* 19 */
2483	{7,6,-1}, /* 20 */	2269	{7, 6, -1}, /* 20 */
2484	{6,7,8}, /* 21 */	2270	{6, 7, 8}, /* 21 */
2485	{7,8,-1}, /* 22 */	2271	{7, 8, -1}, /* 22 */
2486	{8,22,24}, /* 23 */	2272	{8, 22, 24}, /* 23 */
2487	{8,1,-1}, /* 24 */	2273	{8, 1, -1}, /* 24 */
2488	{24,9,10}, /* 25 */	2274	{24, 9, 10}, /* 25 */
2489	{9,10,-1}, /* 26 */	2275	{9, 10, -1}, /* 26 */
2490	{10,11,-1}, /* 27 */	2276	{10, 11, -1}, /* 27 */
2491	{27,11,29}, /* 28 */	2277	{27, 11, 29}, /* 28 */
2492	{11,12,-1}, /* 29 */	2278	{11, 12, -1}, /* 29 */
2493	{12,13,-1}, /* 30 */	2279	{12, 13, -1}, /* 30 */
2494	{12,13,14}, /* 31 */	2280	{12, 13, 14}, /* 31 */
2495	{13,14,-1}, /* 32 */	2281	{13, 14, -1}, /* 32 */
2496	{14,15,-1}, /* 33 */	2282	{14, 15, -1}, /* 33 */
2497	{33,15,35}, /* 34 */	2283	{33, 15, 35}, /* 34 */
2498	{16,15,-1}, /* 35 */	2284	{16, 15, -1}, /* 35 */
2499	{17,16,-1}, /* 36 */	2285	{17, 16, -1}, /* 36 */
2500	{18,17,16}, /* 37 */	2286	{18, 17, 16}, /* 37 */
2501	{18,17,-1}, /* 38 */	2287	{18, 17, -1}, /* 38 */
2502	{18,19,-1}, /* 39 */	2288	{18, 19, -1}, /* 39 */
2503	{41,19,39}, /* 40 */	2289	{41, 19, 39}, /* 40 */
2504	{19,20,-1}, /* 41 */	2290	{19, 20, -1}, /* 41 */
2505	{20,21,-1}, /* 42 */	2291	{20, 21, -1}, /* 42 */
2506	{20,21,22}, /* 43 */	2292	{20, 21, 22}, /* 43 */
2507	{21,22,-1}, /* 44 */	2293	{21, 22, -1}, /* 44 */
2508	{23,22,-1}, /* 45 */	2294	{23, 22, -1}, /* 45 */
2509	{45,47,23}, /* 46 */	2295	{45, 47, 23}, /* 46 */
2510	{23,24,-1}, /* 47 */	2296	{23, 24, -1}, /* 47 */
2511	{24,9,-1}}; /* 48 */	2297	{24, 9, -1}
		2298	}; /* 48 */
2512		2299
2513	/* Recursive routine to step back and see if we can	2300	/* Recursive routine to step back and see if we can
2514	* find a path to that monster that we found. If not,	2301	* find a path to that monster that we found. If not,
2515	* we don't bother going toward it. Returns 1 if we	2302	* we don't bother going toward it. Returns 1 if we
2516	* can see a direct way to get it	2303	* can see a direct way to get it
2517	* Modified to be map tile aware -.MSW	2304	* Modified to be map tile aware -.MSW
2518	*/	2305	*/
2519		2306	int
2520
2521	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2307	can_see_monsterP (maptile *m, int x, int y, int dir)
		2308	{
2522	sint16 dx, dy;	2309	sint16 dx, dy;
2523	int mflags;	2310	int mflags;
2524		2311
		2312	if (dir < 0)
2525	if(dir<0) return 0; /* exit condition: invalid direction */	2313	return 0; /* exit condition: invalid direction */
2526		2314
2527	dx = x + freearr_x[dir];	2315	dx = x + freearr_x[dir];
2528	dy = y + freearr_y[dir];	2316	dy = y + freearr_y[dir];
2529		2317
2530	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2318	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2531		2319
2532	/* This functional arguably was incorrect before - it was	2320	/* This functional arguably was incorrect before - it was
2533	* checking for P_WALL - that was basically seeing if	2321	* checking for P_WALL - that was basically seeing if
2534	* we could move to the monster - this is being more	2322	* we could move to the monster - this is being more
2535	* literal on if we can see it. To know if we can actually	2323	* literal on if we can see it. To know if we can actually
2536	* move to the monster, we'd need the monster passed in or	2324	* move to the monster, we'd need the monster passed in or
2537	* at least its move type.	2325	* at least its move type.
2538	*/	2326	*/
2539	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2327	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2328	return 0;
2540		2329
2541	/* yes, can see. */	2330	/* yes, can see. */
2542	if(dir < 9) return 1;	2331	if (dir < 9)
		2332	return 1;
		2333
2543	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2334	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2544	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2335	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2545	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2336	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2546	}	2337	}
2547		2338
2548
2549
2550	/*	2339	/*
2551	* can_pick(picker, item): finds out if an object is possible to be	2340	* can_pick(picker, item): finds out if an object is possible to be
2552	* picked up by the picker. Returnes 1 if it can be	2341	* picked up by the picker. Returnes 1 if it can be
2553	* picked up, otherwise 0.	2342	* picked up, otherwise 0.
2554	*	2343	*
2555	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2344	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2556	* core dumps if they do.	2345	* core dumps if they do.
2557	*	2346	*
2558	* Add a check so we can't pick up invisible objects (0.93.8)	2347	* Add a check so we can't pick up invisible objects (0.93.8)
2559	*/	2348	*/
2560		2349	int
2561	int can_pick(const object *who, const object *item) {	2350	can_pick (const object *who, const object *item)
		2351	{
2562	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2352	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2563	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2353	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2564	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2354	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2565	(who->type==PLAYER||item->weight<who->weight/3));
2566	}	2355	}
2567
2568		2356
2569	/*	2357	/*
2570	* create clone from object to another	2358	* create clone from object to another
2571	*/	2359	*/
		2360	object *
2572	object *object_create_clone (object *asrc) {	2361	object_create_clone (object *asrc)
		2362	{
2573	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2363	object *dst = 0, *tmp, *src, *prev, *item;
2574		2364
2575	if(!asrc) return NULL;	2365	if (!asrc)
2576	src = asrc;	2366	return 0;
2577	if(src->head)	2367
2578	src = src->head;	2368	src = asrc->head_ ();
2579		2369
2580	prev = NULL;	2370	prev = 0;
2581	for(part = src; part; part = part->more) {	2371	for (object *part = src; part; part = part->more)
2582	tmp = get_object();	2372	{
2583	copy_object(part,tmp);	2373	tmp = part->clone ();
2584	tmp->x -= src->x;	2374	tmp->x -= src->x;
2585	tmp->y -= src->y;	2375	tmp->y -= src->y;
		2376
2586	if(!part->head) {	2377	if (!part->head)
		2378	{
2587	dst = tmp;	2379	dst = tmp;
2588	tmp->head = NULL;
2589	} else {
2590	tmp->head = dst;	2380	tmp->head = 0;
2591	}	2381	}
		2382	else
		2383	tmp->head = dst;
		2384
2592	tmp->more = NULL;	2385	tmp->more = 0;
		2386
2593	if(prev)	2387	if (prev)
2594	prev->more = tmp;	2388	prev->more = tmp;
		2389
2595	prev = tmp;	2390	prev = tmp;
2596	}	2391	}
2597	/*** copy inventory ***/	2392
2598	for(item = src->inv; item; item = item->below) {	2393	for (item = src->inv; item; item = item->below)
2599	(void) insert_ob_in_ob(object_create_clone(item),dst);	2394	insert_ob_in_ob (object_create_clone (item), dst);
2600	}
2601		2395
2602	return dst;	2396	return dst;
2603	}
2604
2605	/* return true if the object was destroyed, 0 otherwise */
2606	int was_destroyed (const object *op, tag_t old_tag)
2607	{
2608	/* checking for FLAG_FREED isn't necessary, but makes this function more
2609	* robust */
2610	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2611	}
2612
2613	/* GROS - Creates an object using a string representing its content. */
2614	/* Basically, we save the content of the string to a temp file, then call */
2615	/* load_object on it. I admit it is a highly inefficient way to make things, */
2616	/* but it was simple to make and allows reusing the load_object function. */
2617	/* Remember not to use load_object_str in a time-critical situation. */
2618	/* Also remember that multiparts objects are not supported for now. */
2619
2620	object* load_object_str(const char *obstr)
2621	{
2622	object *op;
2623	FILE *tempfile;
2624	char filename[MAX_BUF];
2625	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);
2626	tempfile=fopen(filename,"w");
2627	if (tempfile == NULL)
2628	{
2629	LOG(llevError,"Error - Unable to access load object temp file\n");
2630	return NULL;
2631	};
2632	fprintf(tempfile,obstr);
2633	fclose(tempfile);
2634
2635	op=get_object();
2636
2637	tempfile=fopen(filename,"r");
2638	if (tempfile == NULL)
2639	{
2640	LOG(llevError,"Error - Unable to read object temp file\n");
2641	return NULL;
2642	};
2643	object_thawer thawer (tempfile);
2644	load_object(thawer,op,LO_NEWFILE,0);
2645	LOG(llevDebug," load str completed, object=%s\n",op->name);
2646	CLEAR_FLAG(op,FLAG_REMOVED);
2647	fclose(tempfile);
2648	return op;
2649	}	2397	}
2650		2398
2651	/* This returns the first object in who's inventory that	2399	/* This returns the first object in who's inventory that
2652	* has the same type and subtype match.	2400	* has the same type and subtype match.
2653	* returns NULL if no match.	2401	* returns NULL if no match.
2654	*/	2402	*/
		2403	object *
2655	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2404	find_obj_by_type_subtype (const object *who, int type, int subtype)
2656	{	2405	{
2657	object *tmp;
2658
2659	for (tmp=who->inv; tmp; tmp=tmp->below)	2406	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2660	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2407	if (tmp->type == type && tmp->subtype == subtype)
		2408	return tmp;
2661		2409
2662	return NULL;	2410	return 0;
2663	}	2411	}
2664		2412
2665	/* If ob has a field named key, return the link from the list,	2413	/* If ob has a field named key, return the link from the list,
2666	* otherwise return NULL.	2414	* otherwise return NULL.
2667	*	2415	*
2668	* key must be a passed in shared string - otherwise, this won't	2416	* key must be a passed in shared string - otherwise, this won't
2669	* do the desired thing.	2417	* do the desired thing.
2670	*/	2418	*/
		2419	key_value *
2671	key_value * get_ob_key_link(const object * ob, const char * key) {	2420	get_ob_key_link (const object *ob, const char *key)
2672	key_value * link;	2421	{
2673
2674	for (link = ob->key_values; link != NULL; link = link->next) {	2422	for (key_value *link = ob->key_values; link; link = link->next)
2675	if (link->key == key) {	2423	if (link->key == key)
2676	return link;	2424	return link;
2677	}	2425
2678	}	2426	return 0;
2679		2427	}
2680	return NULL;
2681	}
2682		2428
2683	/*	2429	/*
2684	* Returns the value of op has an extra_field for key, or NULL.	2430	* Returns the value of op has an extra_field for key, or NULL.
2685	*	2431	*
2686	* The argument doesn't need to be a shared string.	2432	* The argument doesn't need to be a shared string.
2687	*	2433	*
2688	* The returned string is shared.	2434	* The returned string is shared.
2689	*/	2435	*/
		2436	const char *
2690	const char * get_ob_key_value(const object * op, const char * const key) {	2437	get_ob_key_value (const object *op, const char *const key)
		2438	{
2691	key_value * link;	2439	key_value *link;
2692	const char * canonical_key;	2440	shstr_cmp canonical_key (key);
		2441
		2442	if (!canonical_key)
2693		2443	{
2694	canonical_key = find_string(key);
2695
2696	if (canonical_key == NULL) {
2697	/* 1. There being a field named key on any object	2444	/* 1. There being a field named key on any object
2698	* implies there'd be a shared string to find.	2445	* implies there'd be a shared string to find.
2699	* 2. Since there isn't, no object has this field.	2446	* 2. Since there isn't, no object has this field.
2700	* 3. Therefore, *this* object doesn't have this field.	2447	* 3. Therefore, *this* object doesn't have this field.
2701	*/	2448	*/
2702	return NULL;	2449	return 0;
2703	}	2450	}
2704		2451
2705	/* This is copied from get_ob_key_link() above -	2452	/* This is copied from get_ob_key_link() above -
2706	* only 4 lines, and saves the function call overhead.	2453	* only 4 lines, and saves the function call overhead.
2707	*/	2454	*/
2708	for (link = op->key_values; link != NULL; link = link->next) {	2455	for (link = op->key_values; link; link = link->next)
2709	if (link->key == canonical_key) {	2456	if (link->key == canonical_key)
2710	return link->value;	2457	return link->value;
2711	}
2712	}
2713	return NULL;
2714	}
2715		2458
		2459	return 0;
		2460	}
2716		2461
2717	/*	2462	/*
2718	* Updates the canonical_key in op to value.	2463	* Updates the canonical_key in op to value.
2719	*	2464	*
2720	* canonical_key is a shared string (value doesn't have to be).	2465	* canonical_key is a shared string (value doesn't have to be).
…		…
2722	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2467	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2723	* keys.	2468	* keys.
2724	*	2469	*
2725	* Returns TRUE on success.	2470	* Returns TRUE on success.
2726	*/	2471	*/
		2472	int
2727	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2473	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2474	{
2728	key_value * field = NULL, *last=NULL;	2475	key_value *field = NULL, *last = NULL;
2729		2476
2730	for (field=op->key_values; field != NULL; field=field->next) {	2477	for (field = op->key_values; field != NULL; field = field->next)
		2478	{
2731	if (field->key != canonical_key) {	2479	if (field->key != canonical_key)
		2480	{
2732	last = field;	2481	last = field;
2733	continue;	2482	continue;
2734	}	2483	}
2735		2484
2736	if (field->value) FREE_AND_CLEAR_STR(field->value);
2737	if (value)	2485	if (value)
2738	field->value = add_string(value);	2486	field->value = value;
2739	else {	2487	else
		2488	{
2740	/* Basically, if the archetype has this key set,	2489	/* Basically, if the archetype has this key set,
2741	* we need to store the null value so when we save	2490	* we need to store the null value so when we save
2742	* it, we save the empty value so that when we load,	2491	* it, we save the empty value so that when we load,
2743	* we get this value back again.	2492	* we get this value back again.
2744	*/	2493	*/
2745	if (get_ob_key_link(&op->arch->clone, canonical_key))	2494	if (get_ob_key_link (op->arch, canonical_key))
2746	field->value = NULL;	2495	field->value = 0;
2747	else {	2496	else
2748	/* Delete this link */	2497	{
2749	if (field->key) FREE_AND_CLEAR_STR(field->key);	2498	if (last)
2750	if (field->value) FREE_AND_CLEAR_STR(field->value);
2751	if (last) last->next = field->next;	2499	last->next = field->next;
		2500	else
2752	else op->key_values = field->next;	2501	op->key_values = field->next;
		2502
2753	free(field);	2503	delete field;
2754	}	2504	}
2755	}	2505	}
2756	return TRUE;	2506	return TRUE;
2757	}	2507	}
2758	/* IF we get here, key doesn't exist */	2508	/* IF we get here, key doesn't exist */
2759		2509
2760	/* No field, we'll have to add it. */	2510	/* No field, we'll have to add it. */
2761		2511
2762	if (!add_key) {	2512	if (!add_key)
2763	return FALSE;	2513	return FALSE;
2764	}	2514
2765	/* There isn't any good reason to store a null	2515	/* There isn't any good reason to store a null
2766	* value in the key/value list. If the archetype has	2516	* value in the key/value list. If the archetype has
2767	* this key, then we should also have it, so shouldn't	2517	* this key, then we should also have it, so shouldn't
2768	* be here. If user wants to store empty strings,	2518	* be here. If user wants to store empty strings,
2769	* should pass in ""	2519	* should pass in ""
2770	*/	2520	*/
2771	if (value == NULL) return TRUE;	2521	if (value == NULL)
2772
2773	field = (key_value *) malloc(sizeof(key_value));
2774
2775	field->key = add_refcount(canonical_key);
2776	field->value = add_string(value);
2777	/* Usual prepend-addition. */
2778	field->next = op->key_values;
2779	op->key_values = field;
2780
2781	return TRUE;	2522	return TRUE;
		2523
		2524	field = new key_value;
		2525
		2526	field->key = canonical_key;
		2527	field->value = value;
		2528	/* Usual prepend-addition. */
		2529	field->next = op->key_values;
		2530	op->key_values = field;
		2531
		2532	return TRUE;
2782	}	2533	}
2783		2534
2784	/*	2535	/*
2785	* Updates the key in op to value.	2536	* Updates the key in op to value.
2786	*	2537	*
…		…
2788	* and not add new ones.	2539	* and not add new ones.
2789	* In general, should be little reason FALSE is ever passed in for add_key	2540	* In general, should be little reason FALSE is ever passed in for add_key
2790	*	2541	*
2791	* Returns TRUE on success.	2542	* Returns TRUE on success.
2792	*/	2543	*/
		2544	int
2793	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2545	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2794	const char * canonical_key = NULL;	2546	{
2795	int floating_ref = FALSE;	2547	shstr key_ (key);
2796	int ret;	2548
		2549	return set_ob_key_value_s (op, key_, value, add_key);
		2550	}
		2551
		2552	object::depth_iterator::depth_iterator (object *container)
		2553	: iterator_base (container)
		2554	{
		2555	while (item->inv)
		2556	item = item->inv;
		2557	}
		2558
		2559	void
		2560	object::depth_iterator::next ()
		2561	{
		2562	if (item->below)
2797		2563	{
2798	/* HACK This mess is to make sure set_ob_value() passes a shared string	2564	item = item->below;
2799	* to get_ob_key_link(), without leaving a leaked refcount.	2565
2800	*/	2566	while (item->inv)
		2567	item = item->inv;
2801		2568	}
2802	canonical_key = find_string(key);	2569	else
2803	if (canonical_key == NULL) {	2570	item = item->env;
2804	canonical_key = add_string(key);	2571	}
2805	floating_ref = TRUE;	2572
2806	}	2573	const char *
		2574	object::flag_desc (char *desc, int len) const
		2575	{
		2576	char *p = desc;
		2577	bool first = true;
		2578
		2579	*p = 0;
		2580
		2581	for (int i = 0; i < NUM_FLAGS; i++)
2807		2582	{
2808	ret = set_ob_key_value_s(op, canonical_key, value, add_key);	2583	if (len <= 10) // magic constant!
		2584	{
		2585	snprintf (p, len, ",...");
		2586	break;
		2587	}
		2588
		2589	if (flag [i])
		2590	{
		2591	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2592	len -= cnt;
		2593	p += cnt;
		2594	first = false;
		2595	}
2809		2596	}
2810	if (floating_ref) {	2597
2811	free_string(canonical_key);	2598	return desc;
2812	}	2599	}
2813		2600
		2601	// return a suitable string describing an object in enough detail to find it
		2602	const char *
		2603	object::debug_desc (char *info) const
		2604	{
		2605	char flagdesc[512];
		2606	char info2[256 * 4];
		2607	char *p = info;
		2608
		2609	p += snprintf (p, 512, "{cnt:%d,uuid:<1.%" PRIx64 ">,name:\"%s\"%s%s,flags:[%s],type:%d}",
		2610	count, uuid.seq,
		2611	&name,
		2612	title ? "\",title:\"" : "",
		2613	title ? (const char *)title : "",
		2614	flag_desc (flagdesc, 512), type);
		2615
		2616	if (env)
		2617	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2618
		2619	if (map)
		2620	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2621
		2622	return info;
		2623	}
		2624
		2625	const char *
		2626	object::debug_desc () const
		2627	{
		2628	static char info[3][256 * 4];
		2629	static int info_idx;
		2630
		2631	return debug_desc (info [++info_idx % 3]);
		2632	}
		2633
		2634	struct region *
		2635	object::region () const
		2636	{
		2637	return map ? map->region (x, y)
		2638	: region::default_region ();
		2639	}
		2640
		2641	const materialtype_t *
		2642	object::dominant_material () const
		2643	{
		2644	if (materialtype_t *mt = name_to_material (materialname))
2814	return ret;	2645	return mt;
		2646
		2647	return name_to_material (shstr_unknown);
2815	}	2648	}
		2649
		2650	void
		2651	object::open_container (object *new_container)
		2652	{
		2653	if (container == new_container)
		2654	return;
		2655
		2656	if (object *old_container = container)
		2657	{
		2658	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2659	return;
		2660
		2661	#if 0
		2662	// remove the "Close old_container" object.
		2663	if (object *closer = old_container->inv)
		2664	if (closer->type == CLOSE_CON)
		2665	closer->destroy ();
		2666	#endif
		2667
		2668	old_container->flag [FLAG_APPLIED] = 0;
		2669	container = 0;
		2670
		2671	esrv_update_item (UPD_FLAGS, this, old_container);
		2672	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2673	}
		2674
		2675	if (new_container)
		2676	{
		2677	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2678	return;
		2679
		2680	// TODO: this does not seem to serve any purpose anymore?
		2681	#if 0
		2682	// insert the "Close Container" object.
		2683	if (archetype *closer = new_container->other_arch)
		2684	{
		2685	object *closer = arch_to_object (new_container->other_arch);
		2686	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2687	new_container->insert (closer);
		2688	}
		2689	#endif
		2690
		2691	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2692
		2693	new_container->flag [FLAG_APPLIED] = 1;
		2694	container = new_container;
		2695
		2696	esrv_update_item (UPD_FLAGS, this, new_container);
		2697	esrv_send_inventory (this, new_container);
		2698	}
		2699	}
		2700
		2701	object *
		2702	object::force_find (const shstr name)
		2703	{
		2704	/* cycle through his inventory to look for the MARK we want to
		2705	* place
		2706	*/
		2707	for (object *tmp = inv; tmp; tmp = tmp->below)
		2708	if (tmp->type == FORCE && tmp->slaying == name)
		2709	return splay (tmp);
		2710
		2711	return 0;
		2712	}
		2713
		2714	void
		2715	object::force_add (const shstr name, int duration)
		2716	{
		2717	if (object *force = force_find (name))
		2718	force->destroy ();
		2719
		2720	object *force = get_archetype (FORCE_NAME);
		2721
		2722	force->slaying = name;
		2723	force->stats.food = 1;
		2724	force->speed_left = -1.f;
		2725
		2726	force->set_speed (duration ? 1.f / duration : 0.f);
		2727	force->flag [FLAG_IS_USED_UP] = true;
		2728	force->flag [FLAG_APPLIED] = true;
		2729
		2730	insert (force);
		2731	}
		2732

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