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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 1.273 by root, Sat Dec 27 04:15:56 2008 UTC

1	/*	1	/*
2	* static char *rcsid_object_c =	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	* "$Id: object.C,v 1.8 2006/08/29 08:01:35 root Exp $";	3	*
4	*/	4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra 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	* Deliantra 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 <support@deliantra.net>
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.
30	sub/add_weight will transcend the environment updating the carrying
31	variable. */
32	#include <global.h>	24	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	25	#include <stdio.h>
35	#include <sys/types.h>	26	#include <sys/types.h>
36	#include <sys/uio.h>	27	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	28	#include <object.h>
39	#include <funcpoint.h>	29	#include <sproto.h>
40	#include <skills.h>
41	#include <loader.h>	30	#include <loader.h>
42	#ifdef MEMORY_DEBUG
43	int nroffreeobjects = 0;
44	int nrofallocobjects = 0;
45	#undef OBJ_EXPAND
46	#define OBJ_EXPAND 1
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		31
53	object *objects; /* Pointer to the list of used objects */	32	#include <bitset>
54	object *free_objects; /* Pointer to the list of unused objects */
55	object *active_objects; /* List of active objects that need to be processed */
56		33
		34	UUID UUID::cur;
		35	static uint64_t seq_next_save;
		36	static const uint64 UUID_GAP = 1<<19;
		37	uint32_t mapspace::smellcount = 10000;
		38
		39	objectvec objects;
		40	activevec actives;
		41
57	short freearr_x[SIZEOFFREE]=	42	short freearr_x[SIZEOFFREE] = {
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,	43	0,
		44	0, 1, 1, 1, 0, -1, -1, -1,
		45	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
		47	};
60	short freearr_y[SIZEOFFREE]=	48	short freearr_y[SIZEOFFREE] = {
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,	49	0,
		50	-1, -1, 0, 1, 1, 1, 0, -1,
		51	-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};	52	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
		53	};
63	int maxfree[SIZEOFFREE]=	54	int maxfree[SIZEOFFREE] = {
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,	55	0,
		56	9, 10, 13, 14, 17, 18, 21, 22,
		57	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
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};	58	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		59	};
66	int freedir[SIZEOFFREE]= {	60	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,	61	0,
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};	62	1, 2, 3, 4, 5, 6, 7, 8,
		63	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
		64	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		65	};
69		66
		67	static void
		68	write_uuid (uval64 skip, bool sync)
		69	{
		70	CALL_BEGIN (2);
		71	CALL_ARG_SV (newSVval64 (skip));
		72	CALL_ARG_SV (boolSV (sync));
		73	CALL_CALL ("cf::write_uuid", G_DISCARD);
		74	CALL_END;
		75	}
		76
		77	static void
		78	read_uuid (void)
		79	{
		80	char filename[MAX_BUF];
		81
		82	sprintf (filename, "%s/uuid", settings.localdir);
		83
		84	seq_next_save = 0;
		85
		86	FILE *fp;
		87
		88	if (!(fp = fopen (filename, "r")))
		89	{
		90	if (errno == ENOENT)
		91	{
		92	LOG (llevInfo, "RESET uid to 1\n");
		93	UUID::cur.seq = 0;
		94	write_uuid (UUID_GAP, true);
		95	return;
		96	}
		97
		98	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		99	_exit (1);
		100	}
		101
		102	UUID::BUF buf;
		103	buf[0] = 0;
		104	fgets (buf, sizeof (buf), fp);
		105
		106	if (!UUID::cur.parse (buf))
		107	{
		108	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
		109	_exit (1);
		110	}
		111
		112	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
		113
		114	write_uuid (UUID_GAP, true);
		115	fclose (fp);
		116	}
		117
		118	UUID
		119	UUID::gen ()
		120	{
		121	UUID uid;
		122
		123	uid.seq = ++cur.seq;
		124
		125	if (expect_false (cur.seq >= seq_next_save))
		126	{
		127	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		128	write_uuid (UUID_GAP, false);
		129	}
		130
		131
		132	return uid;
		133	}
		134
		135	void
		136	UUID::init ()
		137	{
		138	read_uuid ();
		139	}
70		140
71	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	141	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		142	static bool
72	static int compare_ob_value_lists_one(const object * wants, const object * has) {	143	compare_ob_value_lists_one (const object *wants, const object *has)
73	key_value * wants_field;	144	{
74
75	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	145	/* n-squared behaviour (see kv_get), but I'm hoping both
76	* objects with lists are rare, and lists stay short. If not, use a	146	* objects with lists are rare, and lists stay short. If not, use a
77	* different structure or at least keep the lists sorted...	147	* different structure or at least keep the lists sorted...
78	*/	148	*/
79		149
80	/* For each field in wants, */	150	/* For each field in wants, */
81	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	151	for (key_value *kv = wants->key_values; kv; kv = kv->next)
82	key_value * has_field;	152	if (has->kv_get (kv->key) != kv->value)
83		153	return false;
84	/* Look for a field in has with the same key. */	154
85	has_field = get_ob_key_link(has, wants_field->key);
86
87	if (has_field == NULL) {
88	/* No field with that name. */
89	return FALSE;
90	}
91
92	/* Found the matching field. */
93	if (has_field->value != wants_field->value) {
94	/* Values don't match, so this half of the comparison is false. */
95	return FALSE;
96	}
97
98	/* If we get here, we found a match. Now for the next field in wants. */
99	}
100
101	/* If we get here, every field in wants has a matching field in has. */	155	/* If we get here, every field in wants has a matching field in has. */
102	return TRUE;	156	return true;
103	}	157	}
104		158
105	/* Returns TRUE if ob1 has the same key_values as ob2. */	159	/* Returns TRUE if ob1 has the same key_values as ob2. */
		160	static bool
106	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	161	compare_ob_value_lists (const object *ob1, const object *ob2)
		162	{
107	/* However, there may be fields in has which aren't partnered in wants,	163	/* However, there may be fields in has which aren't partnered in wants,
108	* so we need to run the comparison *twice*. :(	164	* so we need to run the comparison *twice*. :(
109	*/	165	*/
110	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	166	return compare_ob_value_lists_one (ob1, ob2)
		167	&& compare_ob_value_lists_one (ob2, ob1);
111	}	168	}
112		169
113	/* Function examines the 2 objects given to it, and returns true if	170	/* Function examines the 2 objects given to it, and returns true if
114	* they can be merged together.	171	* they can be merged together.
115	*	172	*
116	* Note that this function appears a lot longer than the macro it	173	* Note that this function appears a lot longer than the macro it
117	* replaces - this is mostly for clarity - a decent compiler should hopefully	174	* replaces - this is mostly for clarity - a decent compiler should hopefully
118	* reduce this to the same efficiency.	175	* reduce this to the same efficiency.
119	*	176	*
120	* Check nrof variable *before* calling CAN_MERGE()	177	* Check nrof variable *before* calling can_merge()
121	*	178	*
122	* Improvements made with merge: Better checking on potion, and also	179	* Improvements made with merge: Better checking on potion, and also
123	* check weight	180	* check weight
124	*/	181	*/
125		182	bool object::can_merge_slow (object *ob1, object *ob2)
126	int CAN_MERGE(object *ob1, object *ob2) {	183	{
127
128	/* A couple quicksanity checks */	184	/* A couple quicksanity checks */
129	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	185	if (ob1 == ob2
		186	|| ob1->type != ob2->type
		187	|| ob1->speed != ob2->speed
		188	|| ob1->value != ob2->value
		189	|| ob1->name != ob2->name)
		190	return 0;
130		191
131	if (ob1->speed != ob2->speed) return 0;	192	/* Do not merge objects if nrof would overflow, assume nrof
		193	* is always 0 .. 2**31-1 */
		194	if (ob1->nrof > 0x7fffffff - ob2->nrof)
		195	return 0;
		196
		197	/* If the objects have been identified, set the BEEN_APPLIED flag.
		198	* This is to the comparison of the flags below will be OK. We
		199	* just can't ignore the been applied or identified flags, as they
		200	* are not equal - just if it has been identified, the been_applied
		201	* flags lose any meaning.
		202	*/
		203	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
		204	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
		205
		206	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
		207	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
		208
		209	if (ob1->arch->archname != ob2->arch->archname
		210	|| ob1->name != ob2->name
		211	|| ob1->title != ob2->title
		212	|| ob1->msg != ob2->msg
		213	|| ob1->weight != ob2->weight
		214	|| ob1->attacktype != ob2->attacktype
		215	|| ob1->magic != ob2->magic
		216	|| ob1->slaying != ob2->slaying
		217	|| ob1->skill != ob2->skill
		218	|| ob1->value != ob2->value
		219	|| ob1->animation_id != ob2->animation_id
		220	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependent on each other
		221	|| ob1->client_type != ob2->client_type
		222	|| ob1->materialname != ob2->materialname
		223	|| ob1->lore != ob2->lore
		224	|| ob1->subtype != ob2->subtype
		225	|| ob1->move_type != ob2->move_type
		226	|| ob1->move_block != ob2->move_block
		227	|| ob1->move_allow != ob2->move_allow
		228	|| ob1->move_on != ob2->move_on
		229	|| ob1->move_off != ob2->move_off
		230	|| ob1->move_slow != ob2->move_slow
		231	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
		234	return 0;
		235
		236	if ((ob1->flag ^ ob2->flag)
		237	.reset (FLAG_INV_LOCKED)
		238	.reset (FLAG_REMOVED)
		239	.any ())
		240	return 0;
		241
		242	/* This is really a spellbook check - we should in general
		243	* not merge objects with real inventories, as splitting them
		244	* is hard.
		245	*/
		246	if (ob1->inv || ob2->inv)
		247	{
		248	if (!(ob1->inv && ob2->inv))
		249	return 0; /* inventories differ in length */
		250
		251	if (ob1->inv->below || ob2->inv->below)
		252	return 0; /* more than one object in inv */
		253
		254	if (!object::can_merge (ob1->inv, ob2->inv))
		255	return 0; /* inventory objects differ */
		256
		257	/* inventory ok - still need to check rest of this object to see
		258	* if it is valid.
		259	*/
		260	}
		261
		262	/* Don't merge objects that are applied. With the new 'body' code,
		263	* it is possible for most any character to have more than one of
		264	* some items equipped, and we don't want those to merge.
		265	*/
		266	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
		267	return 0;
		268
132	/* Note sure why the following is the case - either the object has to	269	/* Note sure why the following is the case - either the object has to
133	* be animated or have a very low speed. Is this an attempted monster	270	* be animated or have a very low speed. Is this an attempted monster
134	* check?	271	* check?
135	*/	272	*/
136	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)	273	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
		274	return 0;
		275
		276	switch (ob1->type)
		277	{
		278	case SCROLL:
		279	if (ob1->level != ob2->level)
		280	return 0;
		281	break;
		282	}
		283
		284	if (ob1->key_values || ob2->key_values)
		285	{
		286	/* At least one of these has key_values. */
		287	if ((!ob1->key_values) != (!ob2->key_values))
		288	return 0; /* One has fields, but the other one doesn't. */
		289
		290	if (!compare_ob_value_lists (ob1, ob2))
137	return 0;	291	return 0;
		292	}
138		293
139	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	294	if (ob1->self || ob2->self)
140	* value could not be stored in a sint32 (which unfortunately sometimes is
141	* used to store nrof).
142	*/
143	if (ob1->nrof+ob2->nrof >= 1UL<<31)
144	return 0;
145
146	/* This is really a spellbook check - really, we should
147	* check all objects in the inventory.
148	*/
149	if (ob1->inv || ob2->inv) {
150	/* if one object has inventory but the other doesn't, not equiv */
151	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) return 0;
152
153	/* Now check to see if the two inventory objects could merge */
154	if (!CAN_MERGE(ob1->inv, ob2->inv)) return 0;
155
156	/* inventory ok - still need to check rest of this object to see
157	* if it is valid.
158	*/
159	}	295	{
		296	ob1->optimise ();
		297	ob2->optimise ();
160		298
161	/* If the objects have been identified, set the BEEN_APPLIED flag.	299	if (ob1->self || ob2->self)
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	)	300	{
		301	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		302	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		303
		304	if (k1 != k2)
207	return 0;	305	return 0;
208		306
209	/* Don't merge objects that are applied. With the new 'body' code,	307	if (k1 == 0)
210	* 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.
212	*/
213	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))
214	return 0;
215
216	switch (ob1->type) {
217	case SCROLL:
218	if (ob1->level != ob2->level) return 0;
219	break;
220
221	}
222	if (ob1->key_values != NULL || ob2->key_values != NULL) {
223	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {
225	/* One has fields, but the other one doesn't. */
226	return 0;	308	return 1;
227	} else if (!compare_ob_value_lists(ob1, ob2)) {	309
		310	if (!cfperl_can_merge (ob1, ob2))
228	return 0;	311	return 0;
229	}	312	}
230	}	313	}
231		314
232	/* Everything passes, must be OK. */	315	/* Everything passes, must be OK. */
233	return 1;	316	return 1;
234	}	317	}
235		318
		319	// find player who can see this object
		320	object *
		321	object::visible_to () const
		322	{
		323	if (client_visible () && !flag [FLAG_REMOVED])
		324	{
		325	// see if we are in a container of sorts
		326	if (env)
		327	{
		328	// the player inventory itself is always visible
		329	if (env->is_player ())
		330	return env;
		331
		332	// else a player could have our env open
		333	object *envest = env->outer_env ();
		334
		335	// the player itself is always on a map, so we will find him here
		336	// even if our inv is in a player.
		337	if (envest->is_on_map ())
		338	if (object *pl = envest->ms ().player ())
		339	if (pl->container == env)
		340	return pl;
		341	}
		342	else
		343	{
		344	// maybe there is a player standing on the same mapspace
		345	// this will catch the case where "this" is a player
		346	if (object *pl = ms ().player ())
		347	if ((!pl->container && pl->contr->ns && !pl->contr->ns->update_look)
		348	|| this == pl->container)
		349	return pl;
		350	}
		351	}
		352
		353	return 0;
		354	}
		355
		356	// adjust weight per container type ("of holding")
		357	static sint32
		358	weight_adjust_for (object *op, sint32 weight)
		359	{
		360	return op->type == CONTAINER
		361	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		362	: weight;
		363	}
		364
236	/*	365	/*
		366	* adjust_weight(object, weight) adds the specified weight to an object,
		367	* and also updates how much the environment(s) is/are carrying.
		368	*/
		369	static void
		370	adjust_weight (object *op, sint32 weight)
		371	{
		372	while (op)
		373	{
		374	// adjust by actual difference to account for rounding errors
		375	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		376	weight = weight_adjust_for (op, op->carrying)
		377	- weight_adjust_for (op, op->carrying - weight);
		378
		379	if (!weight)
		380	return;
		381
		382	op->carrying += weight;
		383
		384	if (object *pl = op->visible_to ())
		385	if (pl != op) // player is handled lazily
		386	esrv_update_item (UPD_WEIGHT, pl, op);
		387
		388	op = op->env;
		389	}
		390	}
		391
		392	/*
237	* sum_weight() is a recursive function which calculates the weight	393	* this is a recursive function which calculates the weight
238	* an object is carrying. It goes through in figures out how much	394	* an object is carrying. It goes through op and figures out how much
239	* containers are carrying, and sums it up.	395	* containers are carrying, and sums it up.
240	*/	396	*/
241	signed long sum_weight(object *op) {	397	void
242	signed long sum;	398	object::update_weight ()
243	object *inv;	399	{
244	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	400	sint32 sum = 0;
		401
		402	for (object *op = inv; op; op = op->below)
		403	{
245	if (inv->inv)	404	if (op->inv)
246	sum_weight(inv);	405	op->update_weight ();
247	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	406
		407	sum += op->total_weight ();
248	}	408	}
249	if (op->type == CONTAINER && op->stats.Str)	409
250	sum = (sum * (100 - op->stats.Str))/100;	410	sum = weight_adjust_for (this, sum);
251	if(op->carrying != sum)	411
		412	if (sum != carrying)
		413	{
252	op->carrying = sum;	414	carrying = sum;
253	return sum;
254	}
255		415
		416	if (object *pl = visible_to ())
		417	if (pl != this) // player is handled lazily
		418	esrv_update_item (UPD_WEIGHT, pl, this);
		419	}
		420	}
		421
256	/**	422	/*
257	* Return the outermost environment object for a given object.	423	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
258	*/	424	*/
259		425	char *
260	object *object_get_env_recursive (object *op) {
261	while (op->env != NULL)
262	op = op->env;
263	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	}
278
279	/*
280	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
281	* Some error messages.
282	* The result of the dump is stored in the static global errmsg array.
283	*/
284
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) {	426	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	{	427	{
340	char *cp;	428	if (!op)
		429	return strdup ("[NULLOBJ]");
341		430
342	if(op==NULL)	431	object_freezer freezer;
343	{	432	op->write (freezer);
344	strcpy(outstr,"[NULL pointer]");	433	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	}	434	}
382		435
383	/*	436	/*
384	* get_nearest_part(multi-object, object 2) returns the part of the	437	* get_nearest_part(multi-object, object 2) returns the part of the
385	* multi-object 1 which is closest to the second object.	438	* multi-object 1 which is closest to the second object.
386	* If it's not a multi-object, it is returned.	439	* If it's not a multi-object, it is returned.
387	*/	440	*/
388		441	object *
389	object *get_nearest_part(object *op, const object *pl) {	442	get_nearest_part (object *op, const object *pl)
		443	{
390	object *tmp,*closest;	444	object *tmp, *closest;
391	int last_dist,i;	445	int last_dist, i;
		446
392	if(op->more==NULL)	447	if (!op->more)
393	return op;	448	return op;
		449
394	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	450	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		451	tmp;
		452	tmp = tmp->more)
395	if((i=distance(tmp,pl))<last_dist)	453	if ((i = distance (tmp, pl)) < last_dist)
396	closest=tmp,last_dist=i;	454	closest = tmp, last_dist = i;
		455
397	return closest;	456	return closest;
398	}	457	}
399		458
400	/*	459	/*
401	* Returns the object which has the count-variable equal to the argument.	460	* Returns the object which has the count-variable equal to the argument.
		461	* VERRRY slow.
402	*/	462	*/
403		463	object *
404	object *find_object(tag_t i) {	464	find_object (tag_t i)
405	object *op;	465	{
406	for(op=objects;op!=NULL;op=op->next)	466	for_all_objects (op)
407	if(op->count==i)	467	if (op->count == i)
408	break;
409	return op;	468	return op;
		469
		470	return 0;
410	}	471	}
411		472
412	/*	473	/*
413	* Returns the first object which has a name equal to the argument.	474	* Returns the first object which has a name equal to the argument.
414	* Used only by the patch command, but not all that useful.	475	* Used only by the patch command, but not all that useful.
415	* Enables features like "patch <name-of-other-player> food 999"	476	* Enables features like "patch <name-of-other-player> food 999"
416	*/	477	*/
417		478	object *
418	object *find_object_name(const char *str) {	479	find_object_name (const char *str)
419	const char *name=add_string(str);	480	{
420	object *op;	481	shstr_cmp str_ (str);
421	for(op=objects;op!=NULL;op=op->next)	482
422	if(op->name==name)	483	if (str_)
423	break;	484	for_all_objects (op)
424	free_string(name);	485	if (op->name == str_)
		486	return op;
		487
425	return op;	488	return 0;
426	}	489	}
427
428	void free_all_object_data(void) {
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	{
470	if (!op) return;
471
472	if (op->owner && op->ownercount == op->owner->count)
473	op->owner->refcount--;
474
475	op->owner = NULL;
476	op->ownercount = 0;
477	}
478
479
480		490
481	/*	491	/*
482	* Sets the owner and sets the skill and exp pointers to owner's current	492	* Sets the owner and sets the skill and exp pointers to owner's current
483	* skill and experience objects.	493	* skill and experience objects.
		494	* ACTUALLY NO! investigate! TODO
484	*/	495	*/
485	void set_owner (object *op, object *owner)	496	void
		497	object::set_owner (object *owner)
486	{	498	{
487	if(owner==NULL||op==NULL)	499	// allow objects which own objects
		500	if (owner)
		501	while (owner->owner)
		502	owner = owner->owner;
		503
		504	if (flag [FLAG_FREED])
		505	{
		506	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
488	return;	507	return;
		508	}
489		509
490	/* next line added to allow objects which own objects */
491	/* 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
493	* fireball. I believe that was caused by one of the objects getting
494	* 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.
496	*/
497	while (owner->owner && owner!=owner->owner &&
498	owner->ownercount==owner->owner->count) owner=owner->owner;
499
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;	510	this->owner = owner;
506
507	op->ownercount=owner->count;
508	owner->refcount++;
509
510	}	511	}
511		512
512	/* Set the owner to clone's current owner and set the skill and experience	513	int
513	* objects to clone's objects (typically those objects that where the owner's	514	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	{	515	{
524	object *owner = get_owner (clone);	516	if (type == SKILL)
525	if (owner == NULL) {	517	{
526	/* players don't have owners - they own themselves. Update	518	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
527	* as appropriate.	519	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		520	}
		521	else
		522	{
		523	if (slot [body_combat].info) return slot_combat;
		524	if (slot [body_range ].info) return slot_ranged;
		525	}
		526
		527	return slot_none;
		528	}
		529
		530	bool
		531	object::change_weapon (object *ob)
		532	{
		533	if (current_weapon == ob)
		534	return true;
		535
		536	if (chosen_skill)
		537	chosen_skill->flag [FLAG_APPLIED] = false;
		538
		539	current_weapon = ob;
		540	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		541
		542	if (chosen_skill)
		543	chosen_skill->flag [FLAG_APPLIED] = true;
		544
		545	update_stats ();
		546
		547	if (ob)
		548	{
		549	// now check wether any body locations became invalid, in which case
		550	// we cannot apply the weapon at the moment.
		551	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		552	if (slot[i].used < 0)
528	*/	553	{
529	if (clone->type == PLAYER) owner=clone;	554	current_weapon = chosen_skill = 0;
530	else return;	555	update_stats ();
		556
		557	new_draw_info_format (NDI_UNIQUE, 0, this,
		558	"You try to balance all your items at once, "
		559	"but the %s is just too much for your body. "
		560	"[You need to unapply some items first.]", &ob->name);
		561	return false;
		562	}
		563
		564	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		565	}
		566	else
		567	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		568
		569	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
531	}	570	{
532	set_owner(op, owner);	571	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		572	&name, ob->debug_desc ());
		573	return false;
		574	}
533		575
534	}	576	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	}	577	}
553		578
554	/* Zero the key_values on op, decrementing the shared-string	579	/* Zero the key_values on op, decrementing the shared-string
555	* refcounts and freeing the links.	580	* refcounts and freeing the links.
556	*/	581	*/
		582	static void
557	static void free_key_values(object * op) {	583	free_key_values (object *op)
558	key_value * i;	584	{
559	key_value * next = NULL;	585	for (key_value *i = op->key_values; i; )
560		586	{
561	if (op->key_values == NULL) return;	587	key_value *next = i->next;
		588	delete i;
		589
		590	i = next;
562		591	}
563	for (i = op->key_values; i != NULL; i = next) {	592
564	/* Store next *first*. */
565	next = i->next;
566
567	if (i->key) FREE_AND_CLEAR_STR(i->key);
568	if (i->value) FREE_AND_CLEAR_STR(i->value);
569	i->next = NULL;
570	free(i);
571	}
572
573	op->key_values = NULL;	593	op->key_values = 0;
574	}	594	}
575		595
576
577	/*	596	/*
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,	597	* copy_to first frees everything allocated by the dst object,
653	* and then copies the contends of the first object into the second	598	* and then copies the contents of itself into the second
654	* object, allocating what needs to be allocated. Basically, any	599	* object, allocating what needs to be allocated. Basically, any
655	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	600	* 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	601	* if the first object is freed, the pointers in the new object
657	* will point at garbage.	602	* will point at garbage.
658	*/	603	*/
		604	void
		605	object::copy_to (object *dst)
		606	{
		607	dst->remove ();
		608	*(object_copy *)dst = *this;
		609	dst->flag [FLAG_REMOVED] = true;
659		610
660	void copy_object(object *op2, object *op) {
661	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);
662	event *evt, *evt2, *evt_new;
663
664	op->clear ();
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. */	611	/* Copy over key_values, if any. */
734	if (op2->key_values != NULL) {	612	if (key_values)
		613	{
735	key_value * tail = NULL;	614	key_value *tail = 0;
736	key_value * i;
737
738	op->key_values = NULL;	615	dst->key_values = 0;
739		616
740	for (i = op2->key_values; i != NULL; i = i->next) {	617	for (key_value *i = key_values; i; i = i->next)
741	key_value * new_link = (key_value *) malloc(sizeof(key_value));	618	{
		619	key_value *new_link = new key_value;
742		620
743	new_link->next = NULL;	621	new_link->next = 0;
744	new_link->key = add_refcount(i->key);	622	new_link->key = i->key;
745	if (i->value)
746	new_link->value = add_refcount(i->value);	623	new_link->value = i->value;
747	else
748	new_link->value = NULL;
749		624
750	/* Try and be clever here, too. */	625	/* Try and be clever here, too. */
751	if (op->key_values == NULL) {	626	if (!dst->key_values)
		627	{
752	op->key_values = new_link;	628	dst->key_values = new_link;
753	tail = new_link;	629	tail = new_link;
		630	}
754	} else {	631	else
		632	{
755	tail->next = new_link;	633	tail->next = new_link;
756	tail = new_link;	634	tail = new_link;
757	}	635	}
758	}	636	}
759	}	637	}
760		638
761	update_ob_speed(op);	639	if (speed < 0)
762	}	640	dst->speed_left -= rndm ();
763		641
764	/*	642	dst->activate ();
765	* expand_objects() allocates more objects for the list of unused objects.
766	* It is called from get_object() if the unused list is empty.
767	*/
768
769	void expand_objects(void) {
770	int i;
771	object *obj;
772	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));
773
774	if(obj==NULL)
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	}	643	}
796		644
797	/*	645	void
798	* get_object() grabs an object from the list of unused objects, makes	646	object::instantiate ()
799	* sure it is initialised, and returns it.	647	{
800	* If there are no free objects, expand_objects() is called to get more.	648	if (!uuid.seq) // HACK
801	*/	649	uuid = UUID::gen ();
802		650
803	object *get_object(void) {	651	speed_left = -0.1f;
804	object *op;	652	/* copy the body_info to the body_used - this is only really
805		653	* need for monsters, but doesn't hurt to do it for everything.
806	if(free_objects==NULL) {	654	* by doing so, when a monster is created, it has good starting
807	expand_objects();	655	* values for the body_used info, so when items are created
808	}	656	* for it, they can be properly equipped.
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	*/	657	*/
815	op = realloc(op, sizeof(object));	658	for (int i = NUM_BODY_LOCATIONS; i--; )
816	SET_FLAG(op, FLAG_REMOVED);	659	slot[i].used = slot[i].info;
817	SET_FLAG(op, FLAG_FREED);
818	#endif
819		660
820	if(!QUERY_FLAG(op,FLAG_FREED)) {	661	attachable::instantiate ();
821	LOG(llevError,"Fatal: Getting busy object.\n");	662	}
822	}	663
823	free_objects=op->next;	664	object *
824	if(free_objects!=NULL)	665	object::clone ()
825	free_objects->prev=NULL;	666	{
826	op->count= ++ob_count;	667	object *neu = create ();
827	op->name=NULL;	668	copy_to (neu);
828	op->name_pl=NULL;	669	neu->map = map; // not copied by copy_to
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;	670	return neu;
847	}	671	}
848		672
849	/*	673	/*
850	* If an object with the IS_TURNABLE() flag needs to be turned due	674	* 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	675	* 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.	676	* be called to update the face variable, _and_ how it looks on the map.
853	*/	677	*/
854		678	void
855	void update_turn_face(object *op) {	679	update_turn_face (object *op)
		680	{
856	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	681	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
857	return;	682	return;
		683
858	SET_ANIMATION(op, op->direction);	684	SET_ANIMATION (op, op->direction);
859	update_object(op,UP_OBJ_FACE);	685	update_object (op, UP_OBJ_FACE);
860	}	686	}
861		687
862	/*	688	/*
863	* Updates the speed of an object. If the speed changes from 0 to another	689	* 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.	690	* 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.	691	* This function needs to be called whenever the speed of an object changes.
866	*/	692	*/
867		693	void
868	void update_ob_speed(object *op) {	694	object::set_speed (float speed)
869	extern int arch_init;	695	{
870		696	if (flag [FLAG_FREED] && speed)
871	/* No reason putting the archetypes objects on the speed list,	697	{
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);	698	LOG (llevError, "Object %s is freed but has speed.\n", &name);
877	#ifdef MANY_CORES
878	abort();
879	#else
880	op->speed = 0;	699	speed = 0;
881	#endif
882	}	700	}
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		701
891	/* process_events() expects us to insert the object at the beginning	702	this->speed = speed;
892	* of the list. */	703
893	op->active_next = active_objects;	704	if (has_active_speed ())
894	if (op->active_next!=NULL)	705	activate ();
895	op->active_next->active_prev = op;
896	active_objects = op;
897	}
898	else {	706	else
899	/* If not on the active list, nothing needs to be done */	707	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	}	708	}
917		709
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	/*	710	/*
947	* update_object() updates the array which represents the map.	711	* update_object() updates the the map.
948	* It takes into account invisible objects (and represent squares covered	712	* It takes into account invisible objects (and represent squares covered
949	* by invisible objects by whatever is below them (unless it's another	713	* by invisible objects by whatever is below them (unless it's another
950	* invisible object, etc...)	714	* invisible object, etc...)
951	* If the object being updated is beneath a player, the look-window	715	* 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	716	* of that player is updated (this might be a suboptimal way of
953	* updating that window, though, since update_object() is called _often_)	717	* updating that window, though, since update_object() is called _often_)
954	*	718	*
955	* action is a hint of what the caller believes need to be done.	719	* 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:	720	* current action are:
961	* UP_OBJ_INSERT: op was inserted	721	* UP_OBJ_INSERT: op was inserted
962	* UP_OBJ_REMOVE: op was removed	722	* UP_OBJ_REMOVE: op was removed
963	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	723	* 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.	724	* as that is easier than trying to look at what may have changed.
965	* UP_OBJ_FACE: only the objects face has changed.	725	* UP_OBJ_FACE: only the objects face has changed.
966	*/	726	*/
967		727	void
968	void update_object(object *op, int action) {	728	update_object (object *op, int action)
969	int update_now=0, flags;	729	{
970	MoveType move_on, move_off, move_block, move_slow;	730	if (!op)
971		731	{
972	if (op == NULL) {
973	/* this should never happen */	732	/* this should never happen */
974	LOG(llevDebug,"update_object() called for NULL object.\n");	733	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
975	return;	734	return;
976	}
977		735	}
978	if(op->env!=NULL) {	736
		737	if (!op->is_on_map ())
		738	{
979	/* Animation is currently handled by client, so nothing	739	/* Animation is currently handled by client, so nothing
980	* to do in this case.	740	* to do in this case.
981	*/	741	*/
982	return;	742	return;
983	}
984
985	/* If the map is saving, don't do anything as everything is
986	* going to get freed anyways.
987	*/
988	if (!op->map || op->map->in_memory == MAP_SAVING) return;
989		743	}
		744
990	/* make sure the object is within map boundaries */	745	/* make sure the object is within map boundaries */
991	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	746	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)) {	747	{
993	LOG(llevError,"update_object() called for object out of map!\n");	748	LOG (llevError, "update_object() called for object out of map!\n");
994	#ifdef MANY_CORES	749	#ifdef MANY_CORES
995	abort();	750	abort ();
996	#endif	751	#endif
997	return;	752	return;
998	}
999		753	}
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		754
		755	mapspace &m = op->ms ();
		756
		757	if (!(m.flags_ & P_UPTODATE))
		758	/* nop */;
1007	if (action == UP_OBJ_INSERT) {	759	else if (action == UP_OBJ_INSERT)
		760	{
		761	// this is likely overkill, TODO: revisit (schmorp)
1008	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	762	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))	763	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
1012	update_now=1;	764	|| (op->is_player () && !(m.flags_ & P_PLAYER))
1013		765	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		766	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
1014	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	767	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
1015	update_now=1;	768	|| (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;	769	|| (m.move_off | op->move_off ) != m.move_off
		770	|| (m.move_slow | op->move_slow) != m.move_slow
1022	/* This isn't perfect, but I don't expect a lot of objects to	771	/* This isn't perfect, but I don't expect a lot of objects to
1023	* to have move_allow right now.	772	* have move_allow right now.
1024	*/	773	*/
1025	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	774	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
1026	update_now=1;	775	|| 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;	776	m.invalidate ();
1028	}	777	}
1029	/* if the object is being removed, we can't make intelligent	778	/* if the object is being removed, we can't make intelligent
1030	* decisions, because remove_ob can't really pass the object	779	* decisions, because remove_ob can't really pass the object
1031	* that is being removed.	780	* that is being removed.
1032	*/	781	*/
1033	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	782	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1034	update_now=1;	783	m.invalidate ();
1035	} else if (action == UP_OBJ_FACE) {	784	else if (action == UP_OBJ_FACE)
1036	/* Nothing to do for that case */	785	/* Nothing to do for that case */ ;
1037	}
1038	else {	786	else
1039	LOG(llevError,"update_object called with invalid action: %d\n", action);	787	LOG (llevError, "update_object called with invalid action: %d\n", action);
1040	}
1041		788
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)	789	if (op->more)
1048	update_object(op->more, action);	790	update_object (op->more, action);
1049	}	791	}
1050		792
		793	object::object ()
		794	{
		795	SET_FLAG (this, FLAG_REMOVED);
1051		796
1052	/*	797	expmul = 1.0;
1053	* free_object() frees everything allocated by an object, removes	798	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	}	799	}
1066	void free_object2(object *ob, int free_inventory) {
1067	object *tmp,*op;
1068		800
1069	ob->clear ();	801	object::~object ()
		802	{
		803	unlink ();
1070		804
1071	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	805	free_key_values (this);
1072	LOG(llevDebug,"Free object called with non removed object\n");	806	}
1073	dump_object(ob);	807
1074	#ifdef MANY_CORES	808	static int object_count;
1075	abort();	809
1076	#endif	810	void object::link ()
1077	}	811	{
1078	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	812	assert (!index);//D
1079	LOG(llevMonster,"Warning: tried to free friendly object.\n");	813	uuid = UUID::gen ();
1080	remove_friendly_object(ob);	814	count = ++object_count;
1081	}	815
1082	if(QUERY_FLAG(ob,FLAG_FREED)) {	816	refcnt_inc ();
1083	dump_object(ob);	817	objects.insert (this);
1084	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);	818	}
		819
		820	void object::unlink ()
		821	{
		822	if (!index)
1085	return;	823	return;
		824
		825	objects.erase (this);
		826	refcnt_dec ();
		827	}
		828
		829	void
		830	object::activate ()
		831	{
		832	/* If already on active list, don't do anything */
		833	if (active)
		834	return;
		835
		836	if (has_active_speed () && flag [FLAG_FREED]) LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
		837	if (has_active_speed () && flag [FLAG_DEBUG]) LOG (llevError | logBacktrace, "BUG: tried to activate DEBUG object %s\n", debug_desc ());//D temp
		838
		839	if (has_active_speed ())
		840	actives.insert (this);
		841	}
		842
		843	void
		844	object::activate_recursive ()
		845	{
		846	activate ();
		847
		848	for (object *op = inv; op; op = op->below)
		849	op->activate_recursive ();
		850	}
		851
		852	/* This function removes object 'op' from the list of active
		853	* objects.
		854	* This should only be used for style maps or other such
		855	* reference maps where you don't want an object that isn't
		856	* in play chewing up cpu time getting processed.
		857	* The reverse of this is to call update_ob_speed, which
		858	* will do the right thing based on the speed of the object.
		859	*/
		860	void
		861	object::deactivate ()
		862	{
		863	/* If not on the active list, nothing needs to be done */
		864	if (!active)
		865	return;
		866
		867	actives.erase (this);
		868	}
		869
		870	void
		871	object::deactivate_recursive ()
		872	{
		873	for (object *op = inv; op; op = op->below)
		874	op->deactivate_recursive ();
		875
		876	deactivate ();
		877	}
		878
		879	void
		880	object::set_flag_inv (int flag, int value)
		881	{
		882	for (object *op = inv; op; op = op->below)
1086	}	883	{
1087	if(ob->more!=NULL) {	884	op->flag [flag] = value;
1088	free_object2(ob->more, free_inventory);	885	op->set_flag_inv (flag, value);
1089	ob->more=NULL;
1090	}	886	}
1091	if (ob->inv) {	887	}
		888
		889	/*
		890	* Remove and free all objects in the inventory of the given object.
		891	* object.c ?
		892	*/
		893	void
		894	object::destroy_inv (bool drop_to_ground)
		895	{
		896	// need to check first, because the checks below might segfault
		897	// as we might be on an invalid mapspace and crossfire code
		898	// is too buggy to ensure that the inventory is empty.
		899	// corollary: if you create arrows etc. with stuff in its inventory,
		900	// cf will crash below with off-map x and y
		901	if (!inv)
		902	return;
		903
1092	/* Only if the space blocks everything do we not process -	904	/* Only if the space blocks everything do we not process -
1093	* if some form of movemnt is allowed, let objects	905	* if some form of movement is allowed, let objects
1094	* drop on that space.	906	* drop on that space.
1095	*/	907	*/
1096	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	908	if (!drop_to_ground
1097	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	909	|| !map
		910	|| map->in_memory != MAP_ACTIVE
		911	|| map->no_drop
		912	|| ms ().move_block == MOVE_ALL)
		913	{
		914	while (inv)
		915	inv->destroy ();
		916	}
		917	else
		918	{ /* Put objects in inventory onto this space */
		919	while (inv)
1098	{	920	{
1099	op=ob->inv;	921	object *op = inv;
1100	while(op!=NULL) {	922
1101	tmp=op->below;	923	if (op->flag [FLAG_STARTEQUIP]
1102	remove_ob(op);	924	|| op->flag [FLAG_NO_DROP]
1103	free_object2(op, free_inventory);	925	|| op->type == RUNE
1104	op=tmp;	926	|| op->type == TRAP
1105	}	927	|| op->flag [FLAG_IS_A_TEMPLATE]
		928	|| op->flag [FLAG_DESTROY_ON_DEATH])
		929	op->destroy ();
		930	else
		931	map->insert (op, x, y);
1106	}	932	}
1107	else { /* Put objects in inventory onto this space */
1108	op=ob->inv;
1109	while(op!=NULL) {
1110	tmp=op->below;
1111	remove_ob(op);
1112	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||
1113	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))
1114	free_object(op);
1115	else {
1116	op->x=ob->x;
1117	op->y=ob->y;
1118	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */
1119	}
1120	op=tmp;
1121	}
1122	}
1123	}
1124	/* Remove object from the active list */
1125	ob->speed = 0;
1126	update_ob_speed(ob);
1127
1128	SET_FLAG(ob, FLAG_FREED);
1129	ob->count = 0;
1130
1131	/* Remove this object from the list of used objects */
1132	if(ob->prev==NULL) {
1133	objects=ob->next;
1134	if(objects!=NULL)
1135	objects->prev=NULL;
1136	}
1137	else {
1138	ob->prev->next=ob->next;
1139	if(ob->next!=NULL)
1140	ob->next->prev=ob->prev;
1141	}
1142
1143	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1144	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1145	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1146	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1147	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1148	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1149	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1150	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1151	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1152
1153		933	}
1154	/* Why aren't events freed? */
1155	free_key_values(ob);
1156
1157	#if 0 /* MEMORY_DEBUG*/
1158	/* This is a nice idea. Unfortunately, a lot of the code in crossfire
1159	* presumes the freed_object will stick around for at least a little
1160	* bit
1161	*/
1162	/* this is necessary so that memory debugging programs will
1163	* be able to accurately report source of malloc. If we recycle
1164	* objects, then some other area may be doing the get_object
1165	* and not freeing it, but the original one that malloc'd the
1166	* object will get the blame.
1167	*/
1168	free(ob);
1169	#else
1170
1171	/* Now link it with the free_objects list: */
1172	ob->prev=NULL;
1173	ob->next=free_objects;
1174	if(free_objects!=NULL)
1175	free_objects->prev=ob;
1176	free_objects=ob;
1177	nroffreeobjects++;
1178	#endif
1179	}	934	}
1180		935
1181	/*	936	object *object::create ()
1182	* count_free() returns the number of objects on the list of free objects.	937	{
1183	*/
1184
1185	int count_free(void) {
1186	int i=0;
1187	object *tmp=free_objects;	938	object *op = new object;
1188	while(tmp!=NULL)	939	op->link ();
1189	tmp=tmp->next, i++;
1190	return i;	940	return op;
1191	}	941	}
1192		942
1193	/*	943	static struct freed_map : maptile
1194	* count_used() returns the number of objects on the list of used objects.	944	{
1195	*/	945	freed_map ()
		946	{
		947	path = "<freed objects map>";
		948	name = "/internal/freed_objects_map";
		949	width = 3;
		950	height = 3;
		951	no_drop = 1;
		952	no_reset = 1;
1196		953
1197	int count_used(void) {	954	alloc ();
1198	int i=0;	955	in_memory = MAP_ACTIVE;
1199	object *tmp=objects;
1200	while(tmp!=NULL)
1201	tmp=tmp->next, i++;
1202	return i;
1203	}
1204
1205	/*
1206	* count_active() returns the number of objects on the list of active objects.
1207	*/
1208
1209	int count_active(void) {
1210	int i=0;
1211	object *tmp=active_objects;
1212	while(tmp!=NULL)
1213	tmp=tmp->active_next, i++;
1214	return i;
1215	}
1216
1217	/*
1218	* sub_weight() recursively (outwards) subtracts a number from the
1219	* weight of an object (and what is carried by it's environment(s)).
1220	*/
1221
1222	void sub_weight (object *op, signed long weight) {
1223	while (op != NULL) {
1224	if (op->type == CONTAINER) {
1225	weight=(signed long)(weight*(100-op->stats.Str)/100);
1226	}
1227	op->carrying-=weight;
1228	op = op->env;
1229	}	956	}
1230	}
1231		957
1232	/* remove_ob(op):	958	~freed_map ()
		959	{
		960	destroy ();
		961	}
		962	} freed_map; // freed objects are moved here to avoid crashes
		963
		964	void
		965	object::do_destroy ()
		966	{
		967	if (flag [FLAG_IS_LINKED])
		968	remove_button_link (this);
		969
		970	if (flag [FLAG_FRIENDLY])
		971	remove_friendly_object (this);
		972
		973	remove ();
		974
		975	attachable::do_destroy ();
		976
		977	deactivate ();
		978	unlink ();
		979
		980	flag [FLAG_FREED] = 1;
		981
		982	// hack to ensure that freed objects still have a valid map
		983	map = &freed_map;
		984	x = 1;
		985	y = 1;
		986
		987	if (more)
		988	{
		989	more->destroy ();
		990	more = 0;
		991	}
		992
		993	head = 0;
		994
		995	// clear those pointers that likely might cause circular references
		996	owner = 0;
		997	enemy = 0;
		998	attacked_by = 0;
		999	current_weapon = 0;
		1000	}
		1001
		1002	void
		1003	object::destroy ()
		1004	{
		1005	if (destroyed ())
		1006	return;
		1007
		1008	if (!is_head () && !head->destroyed ())
		1009	{
		1010	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
		1011	head->destroy ();
		1012	return;
		1013	}
		1014
		1015	destroy_inv (false);
		1016
		1017	if (is_head ())
		1018	if (sound_destroy)
		1019	play_sound (sound_destroy);
		1020	else if (flag [FLAG_MONSTER])
		1021	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
		1022
		1023	attachable::destroy ();
		1024	}
		1025
		1026	/* op->remove ():
1233	* This function removes the object op from the linked list of objects	1027	* 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	1028	* which it is currently tied to. When this function is done, the
1235	* object will have no environment. If the object previously had an	1029	* object will have no environment. If the object previously had an
1236	* environment, the x and y coordinates will be updated to	1030	* environment, the x and y coordinates will be updated to
1237	* the previous environment.	1031	* the previous environment.
1238	* Beware: This function is called from the editor as well!
1239	*/	1032	*/
1240		1033	void
1241	void remove_ob(object *op) {	1034	object::do_remove ()
		1035	{
1242	object *tmp,*last=NULL;	1036	object *tmp, *last = 0;
1243	object *otmp;	1037	object *otmp;
1244	tag_t tag;
1245	int check_walk_off;
1246	mapstruct *m;
1247	sint16 x,y;
1248
1249		1038
1250	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1039	if (flag [FLAG_REMOVED])
1251	dump_object(op);	1040	return;
1252	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1253		1041
1254	/* Changed it to always dump core in this case. As has been learned	1042	INVOKE_OBJECT (REMOVE, this);
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		1043
1269	SET_FLAG(op, FLAG_REMOVED);	1044	flag [FLAG_REMOVED] = true;
1270		1045
		1046	if (more)
		1047	more->remove ();
		1048
1271	/*	1049	/*
1272	* In this case, the object to be removed is in someones	1050	* In this case, the object to be removed is in someones
1273	* inventory.	1051	* inventory.
		1052	*/
		1053	if (env)
		1054	{
		1055	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
		1056	if (object *pl = visible_to ())
		1057	esrv_del_item (pl->contr, count);
		1058	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1059
		1060	adjust_weight (env, -total_weight ());
		1061
		1062	object *pl = in_player ();
		1063
		1064	/* we set up values so that it could be inserted into
		1065	* the map, but we don't actually do that - it is up
		1066	* to the caller to decide what we want to do.
1274	*/	1067	*/
1275	if(op->env!=NULL) {	1068	map = env->map;
1276	if(op->nrof)	1069	x = env->x;
1277	sub_weight(op->env, op->weight*op->nrof);	1070	y = env->y;
1278	else
1279	sub_weight(op->env, op->weight+op->carrying);
1280		1071
		1072	// make sure cmov optimisation is applicable
		1073	*(above ? &above->below : &env->inv) = below;
		1074	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1075
		1076	above = 0;
		1077	below = 0;
		1078	env = 0;
		1079
1281	/* NO_FIX_PLAYER is set when a great many changes are being	1080	/* NO_FIX_PLAYER is set when a great many changes are being
1282	* made to players inventory. If set, avoiding the call	1081	* made to players inventory. If set, avoiding the call
1283	* to save cpu time.	1082	* to save cpu time.
1284	*/	1083	*/
1285	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1084	if (pl)
1286	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1085	if (pl->is_player () && (glow_radius || !QUERY_FLAG (pl, FLAG_NO_FIX_PLAYER)))
1287	fix_player(otmp);
1288
1289	if(op->above!=NULL)
1290	op->above->below=op->below;
1291	else
1292	op->env->inv=op->below;
1293
1294	if(op->below!=NULL)
1295	op->below->above=op->above;
1296
1297	/* we set up values so that it could be inserted into
1298	* the map, but we don't actually do that - it is up
1299	* to the caller to decide what we want to do.
1300	*/	1086	{
1301	op->x=op->env->x,op->y=op->env->y;	1087	pl->update_stats ();
1302	op->ox=op->x,op->oy=op->y;	1088
1303	op->map=op->env->map;	1089	if (glow_radius && pl->is_on_map ())
1304	op->above=NULL,op->below=NULL;	1090	update_all_los (pl->map, pl->x, pl->y);
1305	op->env=NULL;	1091	}
		1092	}
		1093	else if (map)
		1094	{
		1095	map->dirty = true;
		1096	mapspace &ms = this->ms ();
		1097
		1098	if (object *pl = ms.player ())
		1099	{
		1100	if (is_player ())
		1101	{
		1102	if (!flag [FLAG_WIZPASS])
		1103	ms.smell = ++mapspace::smellcount; // remember the smell of the player
		1104
		1105	// leaving a spot always closes any open container on the ground
		1106	if (container && !container->env)
		1107	// this causes spurious floorbox updates, but it ensures
		1108	// that the CLOSE event is being sent.
		1109	close_container ();
		1110
		1111	--map->players;
		1112	map->touch ();
		1113	}
		1114	else if (pl->container == this)
		1115	{
		1116	// removing a container should close it
		1117	close_container ();
		1118	}
		1119
		1120	esrv_del_item (pl->contr, count);
		1121	}
		1122
		1123	/* link the object above us */
		1124	// re-link, make sure compiler can easily use cmove
		1125	*(above ? &above->below : &ms.top) = below;
		1126	*(below ? &below->above : &ms.bot) = above;
		1127
		1128	above = 0;
		1129	below = 0;
		1130
		1131	ms.invalidate ();
		1132
		1133	if (map->in_memory == MAP_SAVING)
1306	return;	1134	return;
1307	}
1308		1135
1309	/* If we get here, we are removing it from a map */	1136	int check_walk_off = !flag [FLAG_NO_APPLY];
1310	if (op->map == NULL) return;
1311		1137
1312	x = op->x;	1138	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	}	1139	{
1354	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1140	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	1141	/* If a container that the player is currently using somehow gets
1371	* removed (most likely destroyed), update the player view	1142	* removed (most likely destroyed), update the player view
1372	* appropriately.	1143	* appropriately.
1373	*/	1144	*/
1374	if (tmp->container==op) {	1145	pl->close_container ();
1375	CLEAR_FLAG(op, FLAG_APPLIED);	1146
1376	tmp->container=NULL;	1147	//TODO: the floorbox prev/next might need updating
		1148	//esrv_del_item (pl->contr, count);
		1149	//TODO: update floorbox to preserve ordering
		1150	if (pl->contr->ns)
		1151	pl->contr->ns->floorbox_update ();
		1152	}
		1153
		1154	for (tmp = ms.bot; tmp; tmp = tmp->above)
		1155	{
		1156	/* No point updating the players look faces if he is the object
		1157	* being removed.
		1158	*/
		1159
		1160	/* See if object moving off should effect something */
		1161	if (check_walk_off
		1162	&& ((move_type & tmp->move_off)
		1163	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1164	{
		1165	move_apply (tmp, this, 0);
		1166
		1167	if (destroyed ())
		1168	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1377	}	1169	}
1378	tmp->contr->socket.update_look=1;	1170
		1171	last = tmp;
1379	}	1172	}
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		1173
1384	move_apply(tmp, op, NULL);	1174	if (affects_los ())
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 */
1398	if (last==NULL) {
1399	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1400	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1401	* those out anyways, and if there are any flags set right now, they won't
1402	* be correct anyways.
1403	*/
1404	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1405	update_position(op->map, op->x, op->y);
1406	}
1407	else
1408	update_object(last, UP_OBJ_REMOVE);
1409
1410	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))
1411	update_all_los(op->map, op->x, op->y);	1175	update_all_los (map, x, y);
1412		1176	}
1413	}	1177	}
1414		1178
1415	/*	1179	/*
1416	* merge_ob(op,top):	1180	* merge_ob(op,top):
1417	*	1181	*
1418	* This function goes through all objects below and including top, and	1182	* This function goes through all objects below and including top, and
1419	* merges op to the first matching object.	1183	* merges op to the first matching object.
1420	* If top is NULL, it is calculated.	1184	* If top is NULL, it is calculated.
1421	* Returns pointer to object if it succeded in the merge, otherwise NULL	1185	* Returns pointer to object if it succeded in the merge, otherwise NULL
1422	*/	1186	*/
1423		1187	object *
1424	object *merge_ob(object *op, object *top) {	1188	merge_ob (object *op, object *top)
		1189	{
1425	if(!op->nrof)	1190	if (!op->nrof)
1426	return 0;	1191	return 0;
1427	if(top==NULL)	1192
		1193	if (!top)
1428	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1194	for (top = op; top && top->above; top = top->above)
		1195	;
		1196
1429	for(;top!=NULL;top=top->below) {	1197	for (; top; top = top->below)
1430	if(top==op)	1198	if (object::can_merge (op, top))
1431	continue;
1432	if (CAN_MERGE(op,top))
1433	{	1199	{
1434	top->nrof+=op->nrof;	1200	top->nrof += op->nrof;
1435	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1201
1436	op->weight = 0; /* Don't want any adjustements now */	1202	if (object *pl = top->visible_to ())
1437	remove_ob(op);	1203	esrv_update_item (UPD_NROF, pl, top);
1438	free_object(op);	1204
		1205	op->weight = 0; // cancel the addition above
		1206	op->carrying = 0; // must be 0 already
		1207
		1208	op->destroy ();
		1209
1439	return top;	1210	return top;
1440	}	1211	}
1441	}	1212
1442	return NULL;	1213	return 0;
1443	}	1214	}
1444		1215
		1216	void
		1217	object::expand_tail ()
		1218	{
		1219	if (more)
		1220	return;
		1221
		1222	object *prev = this;
		1223
		1224	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1225	{
		1226	object *op = arch_to_object (at);
		1227
		1228	op->name = name;
		1229	op->name_pl = name_pl;
		1230	op->title = title;
		1231
		1232	op->head = this;
		1233	prev->more = op;
		1234
		1235	prev = op;
		1236	}
		1237	}
		1238
1445	/*	1239	/*
1446	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1240	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1447	* job preparing multi-part monsters	1241	* job preparing multi-part monsters.
1448	*/	1242	*/
		1243	object *
1449	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1244	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1450	object* tmp;	1245	{
1451	if (op->head)	1246	op->remove ();
1452	op=op->head;	1247
1453	for (tmp=op;tmp;tmp=tmp->more){	1248	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
		1249	{
1454	tmp->x=x+tmp->arch->clone.x;	1250	tmp->x = x + tmp->arch->x;
1455	tmp->y=y+tmp->arch->clone.y;	1251	tmp->y = y + tmp->arch->y;
1456	}	1252	}
		1253
1457	return insert_ob_in_map (op, m, originator, flag);	1254	return insert_ob_in_map (op, m, originator, flag);
1458	}	1255	}
1459		1256
1460	/*	1257	/*
1461	* insert_ob_in_map (op, map, originator, flag):	1258	* insert_ob_in_map (op, map, originator, flag):
1462	* This function inserts the object in the two-way linked list	1259	* This function inserts the object in the two-way linked list
…		…
1475	* Return value:	1272	* Return value:
1476	* new object if 'op' was merged with other object	1273	* new object if 'op' was merged with other object
1477	* NULL if 'op' was destroyed	1274	* NULL if 'op' was destroyed
1478	* just 'op' otherwise	1275	* just 'op' otherwise
1479	*/	1276	*/
1480		1277	object *
1481	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1278	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1482	{	1279	{
1483	object *tmp, *top, *floor=NULL;	1280	op->remove ();
1484	sint16 x,y;
1485		1281
1486	if (QUERY_FLAG (op, FLAG_FREED)) {	1282	if (m == &freed_map)//D TODO: remove soon
1487	LOG (llevError, "Trying to insert freed object!\n");	1283	{//D
1488	return NULL;	1284	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
		1285	}//D
		1286
		1287	/* Ideally, the caller figures this out. However, it complicates a lot
		1288	* of areas of callers (eg, anything that uses find_free_spot would now
		1289	* need extra work
		1290	*/
		1291	if (!xy_normalise (m, op->x, op->y))
1489	}	1292	{
1490	if(m==NULL) {	1293	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
1491	dump_object(op);
1492	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);
1493	return op;	1294	return 0;
1494	}	1295	}
1495	if(out_of_map(m,op->x,op->y)) {	1296
1496	dump_object(op);	1297	if (object *more = op->more)
1497	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1298	if (!insert_ob_in_map (more, m, originator, flag))
1498	#ifdef MANY_CORES
1499	/* 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
1501	* improperly inserted.
1502	*/
1503	abort();
1504	#endif
1505	return op;	1299	return 0;
1506	}
1507	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1508	dump_object(op);
1509	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);
1510	return op;
1511	}
1512	if(op->more!=NULL) {
1513	/* The part may be on a different map. */
1514		1300
1515	object *more = op->more;	1301	CLEAR_FLAG (op, FLAG_REMOVED);
1516		1302
1517	/* We really need the caller to normalize coordinates - if	1303	op->map = m;
1518	* we set the map, that doesn't work if the location is within	1304	mapspace &ms = op->ms ();
1519	* a map and this is straddling an edge. So only if coordinate	1305
1520	* is clear wrong do we normalize it.	1306	/* this has to be done after we translate the coordinates.
		1307	*/
		1308	if (op->nrof && !(flag & INS_NO_MERGE))
		1309	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
		1310	if (object::can_merge (op, tmp))
1521	*/	1311	{
1522	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1312	// TODO: we actually want to update tmp, not op,
1523	/* Debugging information so you can see the last coordinates this object had */	1313	// but some caller surely breaks when we return tmp
1524	more->ox = more->x;	1314	// from here :/
1525	more->oy = more->y;	1315	op->nrof += tmp->nrof;
1526	more->map = get_map_from_coord(m, &more->x, &more->y);	1316	tmp->destroy ();
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	}	1317	}
1533		1318
1534	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1319	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1535	if ( ! op->head)	1320	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1536	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1321
1537	return NULL;	1322	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1323	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1324
		1325	if (flag & INS_BELOW_ORIGINATOR)
		1326	{
		1327	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1328	{
		1329	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1330	abort ();
1538	}	1331	}
		1332
		1333	if (!originator->is_on_map ())
		1334	LOG (llevDebug | logBacktrace, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1335	op->debug_desc (), originator->debug_desc ());
		1336
		1337	op->above = originator;
		1338	op->below = originator->below;
		1339	originator->below = op;
		1340
		1341	*(op->below ? &op->below->above : &ms.bot) = op;
		1342	}
		1343	else
1539	}	1344	{
1540	CLEAR_FLAG(op,FLAG_REMOVED);	1345	object *floor = 0;
		1346	object *top = ms.top;
1541		1347
1542	/* Debugging information so you can see the last coordinates this object had */	1348	/* If there are other objects, then */
1543	op->ox=op->x;	1349	if (top)
1544	op->oy=op->y;	1350	{
		1351	/*
		1352	* If there are multiple objects on this space, we do some trickier handling.
		1353	* We've already dealt with merging if appropriate.
		1354	* Generally, we want to put the new object on top. But if
		1355	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1356	* floor, we want to insert above that and no further.
		1357	* Also, if there are spell objects on this space, we stop processing
		1358	* once we get to them. This reduces the need to traverse over all of
		1359	* them when adding another one - this saves quite a bit of cpu time
		1360	* when lots of spells are cast in one area. Currently, it is presumed
		1361	* that flying non pickable objects are spell objects.
		1362	*/
		1363	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
		1364	{
		1365	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
		1366	floor = tmp;
1545		1367
1546	/* Ideally, the caller figures this out. However, it complicates a lot	1368	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1547	* of areas of callers (eg, anything that uses find_free_spot would now	1369	{
1548	* need extra work	1370	/* We insert above top, so we want this object below this */
1549	*/	1371	top = tmp->below;
1550	op->map=get_map_from_coord(m, &op->x, &op->y);	1372	break;
1551	x = op->x;	1373	}
1552	y = op->y;
1553		1374
1554	/* this has to be done after we translate the coordinates.	1375	top = tmp;
1555	*/
1556	if(op->nrof && !(flag & INS_NO_MERGE)) {
1557	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)
1558	if (CAN_MERGE(op,tmp)) {
1559	op->nrof+=tmp->nrof;
1560	remove_ob(tmp);
1561	free_object(tmp);
1562	}	1376	}
1563	}
1564		1377
1565	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1378	/* We let update_position deal with figuring out what the space
1566	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1379	* looks like instead of lots of conditions here.
1567	if (!QUERY_FLAG(op, FLAG_ALIVE))	1380	* makes things faster, and effectively the same result.
1568	CLEAR_FLAG(op, FLAG_NO_STEAL);	1381	*/
1569		1382
1570	if (flag & INS_BELOW_ORIGINATOR) {	1383	/* Have object 'fall below' other objects that block view.
1571	if (originator->map != op->map || originator->x != op->x ||	1384	* Unless those objects are exits.
1572	originator->y != op->y) {	1385	* If INS_ON_TOP is used, don't do this processing
1573	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1386	* Need to find the object that in fact blocks view, otherwise
1574	abort();	1387	* stacking is a bit odd.
		1388	*/
		1389	if (!(flag & INS_ON_TOP)
		1390	&& ms.flags () & P_BLOCKSVIEW
		1391	&& (op->face && !faces [op->face].visibility))
		1392	{
		1393	object *last;
		1394
		1395	for (last = top; last != floor; last = last->below)
		1396	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1397	break;
		1398
		1399	/* Check to see if we found the object that blocks view,
		1400	* and make sure we have a below pointer for it so that
		1401	* we can get inserted below this one, which requires we
		1402	* set top to the object below us.
		1403	*/
		1404	if (last && last->below && last != floor)
		1405	top = last->below;
		1406	}
		1407	} /* If objects on this space */
		1408
		1409	if (flag & INS_ABOVE_FLOOR_ONLY)
		1410	top = floor;
		1411
		1412	// insert object above top, or bottom-most if top = 0
		1413	if (!top)
		1414	{
		1415	op->below = 0;
		1416	op->above = ms.bot;
		1417	ms.bot = op;
		1418
		1419	*(op->above ? &op->above->below : &ms.top) = op;
1575	}	1420	}
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 {	1421	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	*/	1422	{
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 */
1654	op->above = top->above;	1423	op->above = top->above;
1655	if (op->above) op->above->below = op;
1656	op->below = top;
1657	top->above = op;	1424	top->above = op;
		1425
		1426	op->below = top;
		1427	*(op->above ? &op->above->below : &ms.top) = op;
1658	}	1428	}
1659	if (op->above==NULL)	1429	}
1660	SET_MAP_TOP(op->map,op->x, op->y, op);
1661	} /* else not INS_BELOW_ORIGINATOR */
1662		1430
1663	if(op->type==PLAYER)	1431	if (op->is_player ())
		1432	{
1664	op->contr->do_los=1;	1433	op->contr->do_los = 1;
1665		1434	++op->map->players;
1666	/* If we have a floor, we know the player, if any, will be above	1435	op->map->touch ();
1667	* it, so save a few ticks and start from there.
1668	*/
1669	if (!(flag & INS_MAP_LOAD))
1670	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {
1671	if (tmp->type == PLAYER)
1672	tmp->contr->socket.update_look=1;
1673	}	1436	}
1674		1437
		1438	op->map->dirty = true;
		1439
		1440	if (object *pl = ms.player ())
		1441	//TODO: the floorbox prev/next might need updating
		1442	//esrv_send_item (pl, op);
		1443	//TODO: update floorbox to preserve ordering
		1444	if (pl->contr->ns)
		1445	pl->contr->ns->floorbox_update ();
		1446
1675	/* If this object glows, it may affect lighting conditions that are	1447	/* If this object glows, it may affect lighting conditions that are
1676	* visible to others on this map. But update_all_los is really	1448	* 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	1449	* 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	1450	* on the map will get recalculated. The players could very well
1679	* be far away from this change and not affected in any way -	1451	* be far away from this change and not affected in any way -
1680	* this should get redone to only look for players within range,	1452	* this should get redone to only look for players within range,
1681	* or just updating the P_NEED_UPDATE for spaces within this area	1453	* or just updating the P_UPTODATE for spaces within this area
1682	* of effect may be sufficient.	1454	* of effect may be sufficient.
1683	*/	1455	*/
1684	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1456	if (op->affects_los ())
		1457	{
		1458	op->ms ().invalidate ();
1685	update_all_los(op->map, op->x, op->y);	1459	update_all_los (op->map, op->x, op->y);
		1460	}
1686		1461
1687
1688	/* updates flags (blocked, alive, no magic, etc) for this map space */	1462	/* updates flags (blocked, alive, no magic, etc) for this map space */
1689	update_object(op,UP_OBJ_INSERT);	1463	update_object (op, UP_OBJ_INSERT);
1690		1464
		1465	INVOKE_OBJECT (INSERT, op);
1691		1466
1692	/* Don't know if moving this to the end will break anything. However,	1467	/* 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.	1468	* we want to have floorbox_update called before calling this.
1694	*	1469	*
1695	* check_move_on() must be after this because code called from	1470	* check_move_on() must be after this because code called from
1696	* check_move_on() depends on correct map flags (so functions like	1471	* check_move_on() depends on correct map flags (so functions like
1697	* blocked() and wall() work properly), and these flags are updated by	1472	* blocked() and wall() work properly), and these flags are updated by
1698	* update_object().	1473	* update_object().
1699	*/	1474	*/
1700		1475
1701	/* if this is not the head or flag has been passed, don't check walk on status */	1476	/* 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) {	1477	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
		1478	{
1704	if (check_move_on(op, originator))	1479	if (check_move_on (op, originator))
1705	return NULL;	1480	return 0;
1706		1481
1707	/* If we are a multi part object, lets work our way through the check	1482	/* If we are a multi part object, lets work our way through the check
1708	* walk on's.	1483	* walk on's.
1709	*/	1484	*/
1710	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1485	for (object *tmp = op->more; tmp; tmp = tmp->more)
1711	if (check_move_on (tmp, originator))	1486	if (check_move_on (tmp, originator))
1712	return NULL;	1487	return 0;
1713	}	1488	}
		1489
1714	return op;	1490	return op;
1715	}	1491	}
1716		1492
1717	/* this function inserts an object in the map, but if it	1493	/* 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.	1494	* 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.	1495	* op is the object to insert it under: supplies x and the map.
1720	*/	1496	*/
		1497	void
1721	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1498	replace_insert_ob_in_map (const char *arch_string, object *op)
1722	object *tmp;	1499	{
1723	object *tmp1;
1724
1725	/* first search for itself and remove any old instances */	1500	/* first search for itself and remove any old instances */
1726		1501
1727	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1502	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1728	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1503	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1729	remove_ob(tmp);	1504	tmp->destroy ();
1730	free_object(tmp);
1731	}
1732	}
1733		1505
1734	tmp1=arch_to_object(find_archetype(arch_string));	1506	object *tmp = arch_to_object (archetype::find (arch_string));
1735		1507
1736		1508	tmp->x = op->x;
1737	tmp1->x = op->x; tmp1->y = op->y;	1509	tmp->y = op->y;
		1510
1738	insert_ob_in_map(tmp1,op->map,op,0);	1511	insert_ob_in_map (tmp, op->map, op, 0);
1739	}
1740
1741	/*
1742	* 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
1744	* the rest (or is removed and freed if that number is 0).
1745	* On failure, NULL is returned, and the reason put into the
1746	* global static errmsg array.
1747	*/
1748
1749	object *get_split_ob(object *orig_ob, uint32 nr) {
1750	object *newob;
1751	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1752
1753	if(orig_ob->nrof<nr) {
1754	sprintf(errmsg,"There are only %d %ss.",
1755	orig_ob->nrof?orig_ob->nrof:1, orig_ob->name);
1756	return NULL;
1757	}
1758	newob = object_create_clone(orig_ob);
1759	if((orig_ob->nrof-=nr)<1) {
1760	if ( ! is_removed)
1761	remove_ob(orig_ob);
1762	free_object2(orig_ob, 1);
1763	}
1764	else if ( ! is_removed) {
1765	if(orig_ob->env!=NULL)
1766	sub_weight (orig_ob->env,orig_ob->weight*nr);
1767	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {
1768	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");
1771	return NULL;
1772	}
1773	}
1774	newob->nrof=nr;
1775
1776	return newob;
1777	}	1512	}
1778		1513
		1514	object *
		1515	object::insert_at (object *where, object *originator, int flags)
		1516	{
		1517	if (where->env)
		1518	return where->env->insert (this);
		1519	else
		1520	return where->map->insert (this, where->x, where->y, originator, flags);
		1521	}
		1522
1779	/*	1523	/*
1780	* decrease_ob_nr(object, number) decreases a specified number from	1524	* decrease(object, number) decreases a specified number from
1781	* the amount of an object. If the amount reaches 0, the object	1525	* the amount of an object. If the amount reaches 0, the object
1782	* is subsequently removed and freed.	1526	* is subsequently removed and freed.
1783	*	1527	*
1784	* Return value: 'op' if something is left, NULL if the amount reached 0	1528	* Return value: 'op' if something is left, NULL if the amount reached 0
1785	*/	1529	*/
1786		1530	bool
1787	object *decrease_ob_nr (object *op, uint32 i)	1531	object::decrease (sint32 nr)
1788	{	1532	{
1789	object *tmp;	1533	if (!nr)
1790	player *pl;	1534	return true;
1791		1535
1792	if (i == 0) /* objects with op->nrof require this check */	1536	nr = min (nr, nrof);
		1537
		1538	if (nrof > nr)
		1539	{
		1540	nrof -= nr;
		1541	adjust_weight (env, -weight * max (1, nr)); // carrying == 0
		1542
		1543	if (object *pl = visible_to ())
		1544	esrv_update_item (UPD_NROF, pl, this);
		1545
		1546	return true;
		1547	}
		1548	else
		1549	{
		1550	destroy ();
		1551	return false;
		1552	}
		1553	}
		1554
		1555	/*
		1556	* split(ob,nr) splits up ob into two parts. The part which
		1557	* is returned contains nr objects, and the remaining parts contains
		1558	* the rest (or is removed and returned if that number is 0).
		1559	* On failure, NULL is returned.
		1560	*/
		1561	object *
		1562	object::split (sint32 nr)
		1563	{
		1564	int have = number_of ();
		1565
		1566	if (have < nr)
		1567	return 0;
		1568	else if (have == nr)
		1569	{
		1570	remove ();
		1571	return this;
		1572	}
		1573	else
		1574	{
		1575	decrease (nr);
		1576
		1577	object *op = deep_clone ();
		1578	op->nrof = nr;
1793	return op;	1579	return op;
1794
1795	if (i > op->nrof)
1796	i = op->nrof;
1797
1798	if (QUERY_FLAG (op, FLAG_REMOVED))
1799	{	1580	}
1800	op->nrof -= i;	1581	}
		1582
		1583	object *
		1584	insert_ob_in_ob (object *op, object *where)
		1585	{
		1586	if (!where)
1801	}	1587	{
1802	else if (op->env != NULL)	1588	char *dump = dump_object (op);
1803	{	1589	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1804	/* is this object in the players inventory, or sub container	1590	free (dump);
1805	* therein?
1806	*/
1807	tmp = is_player_inv (op->env);
1808	/* nope. Is this a container the player has opened?
1809	* If so, set tmp to that player.
1810	* IMO, searching through all the players will mostly
1811	* likely be quicker than following op->env to the map,
1812	* and then searching the map for a player.
1813	*/
1814	if (!tmp) {
1815	for (pl=first_player; pl; pl=pl->next)
1816	if (pl->ob->container == op->env) break;
1817	if (pl) tmp=pl->ob;
1818	else tmp=NULL;
1819	}
1820
1821	if (i < op->nrof) {
1822	sub_weight (op->env, op->weight * i);
1823	op->nrof -= i;
1824	if (tmp) {
1825	esrv_send_item(tmp, op);
1826	}
1827	} else {
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 */
1846	for (tmp = above; tmp != NULL; tmp = tmp->above)
1847	if (tmp->type == PLAYER) {
1848	if (op->nrof)
1849	esrv_send_item(tmp, op);
1850	else
1851	esrv_del_item(tmp->contr, op->count);
1852	}
1853	}
1854
1855	if (op->nrof) {
1856	return op;	1591	return op;
1857	} else {	1592	}
1858	free_object (op);	1593
1859	return NULL;	1594	if (where->head_ () != where)
1860	}	1595	{
1861	}	1596	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1862		1597	where = where->head;
1863	/*
1864	* add_weight(object, weight) adds the specified weight to an object,
1865	* and also updates how much the environment(s) is/are carrying.
1866	*/
1867
1868	void add_weight (object *op, signed long weight) {
1869	while (op!=NULL) {
1870	if (op->type == CONTAINER) {
1871	weight=(signed long)(weight*(100-op->stats.Str)/100);
1872	}
1873	op->carrying+=weight;
1874	op=op->env;
1875	}	1598	}
1876	}
1877		1599
		1600	return where->insert (op);
		1601	}
		1602
1878	/*	1603	/*
1879	* insert_ob_in_ob(op,environment):	1604	* env->insert (op)
1880	* This function inserts the object op in the linked list	1605	* This function inserts the object op in the linked list
1881	* inside the object environment.	1606	* inside the object environment.
1882	*	1607	*
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	1608	* The function returns now pointer to inserted item, and return value can
1889	* be != op, if items are merged. -Tero	1609	* be != op, if items are merged. -Tero
1890	*/	1610	*/
1891		1611	object *
1892	object *insert_ob_in_ob(object *op,object *where) {	1612	object::insert (object *op)
1893	object *tmp, *otmp;	1613	{
1894
1895	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1896	dump_object(op);
1897	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);
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) {	1614	if (op->more)
		1615	{
1911	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1616	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1912	op->name, op->count);
1913	return op;	1617	return op;
1914	}	1618	}
1915	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1619
1916	CLEAR_FLAG(op, FLAG_REMOVED);	1620	op->remove ();
		1621
		1622	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1623
1917	if(op->nrof) {	1624	if (op->nrof)
1918	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1625	for (object *tmp = inv; tmp; tmp = tmp->below)
1919	if ( CAN_MERGE(tmp,op) ) {	1626	if (object::can_merge (tmp, op))
		1627	{
1920	/* return the original object and remove inserted object	1628	/* return the original object and remove inserted object
1921	(client needs the original object) */	1629	(client needs the original object) */
1922	tmp->nrof += op->nrof;	1630	tmp->nrof += op->nrof;
1923	/* Weight handling gets pretty funky. Since we are adding to	1631
1924	* tmp->nrof, we need to increase the weight.	1632	if (object *pl = tmp->visible_to ())
1925	*/	1633	esrv_update_item (UPD_NROF, pl, tmp);
1926	add_weight (where, op->weight*op->nrof);	1634
1927	SET_FLAG(op, FLAG_REMOVED);	1635	adjust_weight (this, op->total_weight ());
1928	free_object(op); /* free the inserted object */	1636
		1637	op->destroy ();
1929	op = tmp;	1638	op = tmp;
1930	remove_ob (op); /* and fix old object's links */	1639	goto inserted;
1931	CLEAR_FLAG(op, FLAG_REMOVED);
1932	break;
1933	}	1640	}
1934		1641
1935	/* I assume combined objects have no inventory	1642	op->owner = 0; // it's his/hers now. period.
1936	* We add the weight - this object could have just been removed	1643	op->map = 0;
1937	* (if it was possible to merge). calling remove_ob will subtract	1644	op->x = 0;
1938	* the weight, so we need to add it in again, since we actually do	1645	op->y = 0;
1939	* the linking below
1940	*/
1941	add_weight (where, op->weight*op->nrof);
1942	} else
1943	add_weight (where, (op->weight+op->carrying));
1944		1646
1945	otmp=is_player_inv(where);
1946	if (otmp&&otmp->contr!=NULL) {
1947	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))
1948	fix_player(otmp);
1949	}
1950
1951	op->map=NULL;
1952	op->env=where;
1953	op->above=NULL;	1647	op->above = 0;
1954	op->below=NULL;	1648	op->below = inv;
1955	op->x=0,op->y=0;	1649	op->env = this;
1956	op->ox=0,op->oy=0;
1957		1650
		1651	if (inv)
		1652	inv->above = op;
		1653
		1654	inv = op;
		1655
		1656	op->flag [FLAG_REMOVED] = 0;
		1657
		1658	if (object *pl = op->visible_to ())
		1659	esrv_send_item (pl, op);
		1660
		1661	adjust_weight (this, op->total_weight ());
		1662
		1663	inserted:
1958	/* reset the light list and los of the players on the map */	1664	/* reset the light list and los of the players on the map */
1959	if((op->glow_radius!=0)&&where->map)	1665	if (op->glow_radius && is_on_map ())
1960	{	1666	{
1961	#ifdef DEBUG_LIGHTS	1667	update_stats ();
1962	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1668	update_all_los (map, x, y);
1963	op->name);
1964	#endif /* DEBUG_LIGHTS */
1965	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);
1966	}	1669	}
		1670	else if (is_player () && !flag [FLAG_NO_FIX_PLAYER])
		1671	// if this is a player's inventory, update stats
		1672	update_stats ();
1967		1673
1968	/* Client has no idea of ordering so lets not bother ordering it here.	1674	INVOKE_OBJECT (INSERT, this);
1969	* It sure simplifies this function...	1675
1970	*/
1971	if (where->inv==NULL)
1972	where->inv=op;
1973	else {
1974	op->below = where->inv;
1975	op->below->above = op;
1976	where->inv = op;
1977	}
1978	return op;	1676	return op;
1979	}	1677	}
1980		1678
1981	/*	1679	/*
1982	* Checks if any objects has a move_type that matches objects	1680	* Checks if any objects has a move_type that matches objects
…		…
1996	*	1694	*
1997	* MSW 2001-07-08: Check all objects on space, not just those below	1695	* 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	1696	* object being inserted. insert_ob_in_map may not put new objects
1999	* on top.	1697	* on top.
2000	*/	1698	*/
2001		1699	int
2002	int check_move_on (object *op, object *originator)	1700	check_move_on (object *op, object *originator)
2003	{	1701	{
2004	object *tmp;	1702	object *tmp;
2005	tag_t tag;
2006	mapstruct *m=op->map;	1703	maptile *m = op->map;
2007	int x=op->x, y=op->y;	1704	int x = op->x, y = op->y;
		1705
2008	MoveType move_on, move_slow, move_block;	1706	MoveType move_on, move_slow, move_block;
2009		1707
2010	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1708	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2011	return 0;	1709	return 0;
2012		1710
2013	tag = op->count;
2014
2015	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1711	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);	1712	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);	1713	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
2018		1714
2019	/* if nothing on this space will slow op down or be applied,	1715	/* 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	1716	* 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	1717	* is set, as lots of objects don't have it set - we treat that
2022	* as walking.	1718	* as walking.
2023	*/	1719	*/
2024	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1720	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
2025	return 0;	1721	return 0;
2026		1722
2027	/* This is basically inverse logic of that below - basically,	1723	/* This is basically inverse logic of that below - basically,
2028	* if the object can avoid the move on or slow move, they do so,	1724	* 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	1725	* but can't do it if the alternate movement they are using is
2030	* blocked. Logic on this seems confusing, but does seem correct.	1726	* blocked. Logic on this seems confusing, but does seem correct.
2031	*/	1727	*/
2032	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1728	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;	1729	return 0;
2034		1730
2035	/* The objects have to be checked from top to bottom.	1731	/* The objects have to be checked from top to bottom.
2036	* Hence, we first go to the top:	1732	* Hence, we first go to the top:
2037	*/	1733	*/
2038		1734
2039	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1735	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
2040	tmp->above!=NULL; tmp=tmp->above) {	1736	{
2041	/* Trim the search when we find the first other spell effect	1737	/* Trim the search when we find the first other spell effect
2042	* this helps performance so that if a space has 50 spell objects,	1738	* this helps performance so that if a space has 50 spell objects,
2043	* we don't need to check all of them.	1739	* we don't need to check all of them.
2044	*/	1740	*/
2045	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1741	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1742	break;
		1743	}
		1744
		1745	for (; tmp; tmp = tmp->below)
2046	}	1746	{
2047	for(;tmp!=NULL; tmp=tmp->below) {	1747	if (tmp == op)
2048	if (tmp == op) continue; /* Can't apply yourself */	1748	continue; /* Can't apply yourself */
2049		1749
2050	/* Check to see if one of the movement types should be slowed down.	1750	/* 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	1751	* Second check makes sure that the movement types not being slowed
2052	* (~slow_move) is not blocked on this space - just because the	1752	* (~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	1753	* 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.	1754	* swim on that space, can't use it to avoid the penalty.
2055	*/	1755	*/
2056	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1756	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1757	{
2057	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1758	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)) {	1759	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1760	{
2060		1761
2061	float diff;	1762	float
2062
2063	diff = tmp->move_slow_penalty*FABS(op->speed);	1763	diff = tmp->move_slow_penalty * fabs (op->speed);
2064	if (op->type == PLAYER) {	1764
		1765	if (op->is_player ())
2065	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1766	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))) {	1767	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
2067	diff /= 4.0;	1768	diff /= 4.0;
2068	}	1769
2069	}
2070	op->speed_left -= diff;	1770	op->speed_left -= diff;
2071	}	1771	}
2072	}	1772	}
2073		1773
2074	/* Basically same logic as above, except now for actual apply. */	1774	/* Basically same logic as above, except now for actual apply. */
2075	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1775	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)) {	1776	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2078		1777	{
2079	move_apply(tmp, op, originator);	1778	move_apply (tmp, op, originator);
		1779
2080	if (was_destroyed (op, tag))	1780	if (op->destroyed ())
2081	return 1;	1781	return 1;
2082		1782
2083	/* what the person/creature stepped onto has moved the object	1783	/* what the person/creature stepped onto has moved the object
2084	* someplace new. Don't process any further - if we did,	1784	* someplace new. Don't process any further - if we did,
2085	* have a feeling strange problems would result.	1785	* have a feeling strange problems would result.
2086	*/	1786	*/
2087	if (op->map != m || op->x != x || op->y != y) return 0;	1787	if (op->map != m || op->x != x || op->y != y)
		1788	return 0;
2088	}	1789	}
2089	}	1790	}
		1791
2090	return 0;	1792	return 0;
2091	}	1793	}
2092		1794
2093	/*	1795	/*
2094	* present_arch(arch, map, x, y) searches for any objects with	1796	* present_arch(arch, map, x, y) searches for any objects with
2095	* a matching archetype at the given map and coordinates.	1797	* a matching archetype at the given map and coordinates.
2096	* The first matching object is returned, or NULL if none.	1798	* The first matching object is returned, or NULL if none.
2097	*/	1799	*/
2098		1800	object *
2099	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1801	present_arch (const archetype *at, maptile *m, int x, int y)
2100	object *tmp;	1802	{
2101	if(m==NULL || out_of_map(m,x,y)) {	1803	if (!m || out_of_map (m, x, y))
		1804	{
2102	LOG(llevError,"Present_arch called outside map.\n");	1805	LOG (llevError, "Present_arch called outside map.\n");
2103	return NULL;	1806	return NULL;
2104	}	1807	}
2105	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1808
2106	if(tmp->arch == at)	1809	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1810	if (tmp->arch->archname == at->archname)
2107	return tmp;	1811	return tmp;
		1812
2108	return NULL;	1813	return NULL;
2109	}	1814	}
2110		1815
2111	/*	1816	/*
2112	* present(type, map, x, y) searches for any objects with	1817	* present(type, map, x, y) searches for any objects with
2113	* a matching type variable at the given map and coordinates.	1818	* a matching type variable at the given map and coordinates.
2114	* The first matching object is returned, or NULL if none.	1819	* The first matching object is returned, or NULL if none.
2115	*/	1820	*/
2116		1821	object *
2117	object *present(unsigned char type,mapstruct *m, int x,int y) {	1822	present (unsigned char type, maptile *m, int x, int y)
2118	object *tmp;	1823	{
2119	if(out_of_map(m,x,y)) {	1824	if (out_of_map (m, x, y))
		1825	{
2120	LOG(llevError,"Present called outside map.\n");	1826	LOG (llevError, "Present called outside map.\n");
2121	return NULL;	1827	return NULL;
2122	}	1828	}
2123	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1829
		1830	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2124	if(tmp->type==type)	1831	if (tmp->type == type)
2125	return tmp;	1832	return tmp;
		1833
2126	return NULL;	1834	return NULL;
2127	}	1835	}
2128		1836
2129	/*	1837	/*
2130	* present_in_ob(type, object) searches for any objects with	1838	* present_in_ob(type, object) searches for any objects with
2131	* a matching type variable in the inventory of the given object.	1839	* a matching type variable in the inventory of the given object.
2132	* The first matching object is returned, or NULL if none.	1840	* The first matching object is returned, or NULL if none.
2133	*/	1841	*/
2134		1842	object *
2135	object *present_in_ob(unsigned char type, const object *op) {	1843	present_in_ob (unsigned char type, const object *op)
2136	object *tmp;	1844	{
2137	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1845	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2138	if(tmp->type==type)	1846	if (tmp->type == type)
2139	return tmp;	1847	return tmp;
		1848
2140	return NULL;	1849	return NULL;
2141	}	1850	}
2142		1851
2143	/*	1852	/*
2144	* present_in_ob (type, str, object) searches for any objects with	1853	* present_in_ob (type, str, object) searches for any objects with
…		…
2152	* str is the string to match against. Note that we match against	1861	* 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	1862	* 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	1863	* spell code can use one object type (force), but change it's name
2155	* to be unique.	1864	* to be unique.
2156	*/	1865	*/
2157		1866	object *
2158	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1867	present_in_ob_by_name (int type, const char *str, const object *op)
2159	object *tmp;	1868	{
2160
2161	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1869	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2162	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1870	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2163	return tmp;	1871	return tmp;
2164	}	1872
2165	return NULL;	1873	return 0;
2166	}	1874	}
2167		1875
2168	/*	1876	/*
2169	* present_arch_in_ob(archetype, object) searches for any objects with	1877	* present_arch_in_ob(archetype, object) searches for any objects with
2170	* a matching archetype in the inventory of the given object.	1878	* a matching archetype in the inventory of the given object.
2171	* The first matching object is returned, or NULL if none.	1879	* The first matching object is returned, or NULL if none.
2172	*/	1880	*/
2173		1881	object *
2174	object *present_arch_in_ob(const archetype *at, const object *op) {	1882	present_arch_in_ob (const archetype *at, const object *op)
2175	object *tmp;	1883	{
2176	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1884	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2177	if( tmp->arch == at)	1885	if (tmp->arch->archname == at->archname)
2178	return tmp;	1886	return tmp;
		1887
2179	return NULL;	1888	return NULL;
2180	}	1889	}
2181		1890
2182	/*	1891	/*
2183	* activate recursively a flag on an object inventory	1892	* activate recursively a flag on an object inventory
2184	*/	1893	*/
		1894	void
2185	void flag_inv(object*op, int flag){	1895	flag_inv (object *op, int flag)
2186	object *tmp;	1896	{
2187	if(op->inv)
2188	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1897	for (object *tmp = op->inv; tmp; tmp = tmp->below)
		1898	{
2189	SET_FLAG(tmp, flag);	1899	SET_FLAG (tmp, flag);
2190	flag_inv(tmp,flag);	1900	flag_inv (tmp, flag);
2191	}	1901	}
		1902	}
		1903
2192	}/*	1904	/*
2193	* desactivate recursively a flag on an object inventory	1905	* deactivate recursively a flag on an object inventory
2194	*/	1906	*/
		1907	void
2195	void unflag_inv(object*op, int flag){	1908	unflag_inv (object *op, int flag)
2196	object *tmp;	1909	{
2197	if(op->inv)
2198	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1910	for (object *tmp = op->inv; tmp; tmp = tmp->below)
		1911	{
2199	CLEAR_FLAG(tmp, flag);	1912	CLEAR_FLAG (tmp, flag);
2200	unflag_inv(tmp,flag);	1913	unflag_inv (tmp, flag);
2201	}	1914	}
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	}	1915	}
2215		1916
2216	/*	1917	/*
2217	* find_free_spot(object, map, x, y, start, stop) will search for	1918	* 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	1919	* a spot at the given map and coordinates which will be able to contain
…		…
2220	* to search (see the freearr_x/y[] definition).	1921	* to search (see the freearr_x/y[] definition).
2221	* It returns a random choice among the alternatives found.	1922	* It returns a random choice among the alternatives found.
2222	* start and stop are where to start relative to the free_arr array (1,9	1923	* start and stop are where to start relative to the free_arr array (1,9
2223	* does all 4 immediate directions). This returns the index into the	1924	* does all 4 immediate directions). This returns the index into the
2224	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1925	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2225	* Note - this only checks to see if there is space for the head of the
2226	* object - if it is a multispace object, this should be called for all
2227	* pieces.
2228	* Note2: This function does correctly handle tiled maps, but does not	1926	* Note: This function does correctly handle tiled maps, but does not
2229	* inform the caller. However, insert_ob_in_map will update as	1927	* inform the caller. However, insert_ob_in_map will update as
2230	* necessary, so the caller shouldn't need to do any special work.	1928	* necessary, so the caller shouldn't need to do any special work.
2231	* Note - updated to take an object instead of archetype - this is necessary	1929	* Note - updated to take an object instead of archetype - this is necessary
2232	* because arch_blocked (now ob_blocked) needs to know the movement type	1930	* 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	1931	* 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	1932	* the archetype because that isn't correct if the monster has been
2235	* customized, changed states, etc.	1933	* customized, changed states, etc.
2236	*/	1934	*/
2237		1935	int
2238	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	1936	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		1937	{
		1938	int altern[SIZEOFFREE];
2239	int i,index=0, flag;	1939	int index = 0, flag;
2240	static int altern[SIZEOFFREE];
2241		1940
2242	for(i=start;i<stop;i++) {	1941	for (int i = start; i < stop; i++)
2243	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	1942	{
2244	if(!flag)	1943	mapxy pos (m, x, y); pos.move (i);
		1944
		1945	if (!pos.normalise ())
		1946	continue;
		1947
		1948	mapspace &ms = *pos;
		1949
		1950	if (ms.flags () & P_IS_ALIVE)
		1951	continue;
		1952
		1953	/* However, often
		1954	* ob doesn't have any move type (when used to place exits)
		1955	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1956	*/
		1957	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1958	{
2245	altern[index++]=i;	1959	altern [index++] = i;
		1960	continue;
		1961	}
2246		1962
2247	/* Basically, if we find a wall on a space, we cut down the search size.	1963	/* 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.	1964	* 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 -	1965	* 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	1966	* 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	1967	* spaces in all the other directions, this will reduce the search space
2252	* to only the spaces immediately surrounding the target area, and	1968	* to only the spaces immediately surrounding the target area, and
2253	* won't look 2 spaces south of the target space.	1969	* won't look 2 spaces south of the target space.
2254	*/	1970	*/
2255	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	1971	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1972	{
2256	stop=maxfree[i];	1973	stop = maxfree[i];
2257	}	1974	continue;
2258	if(!index) return -1;	1975	}
2259	return altern[RANDOM()%index];
2260	}
2261		1976
		1977	/* Note it is intentional that we check ob - the movement type of the
		1978	* head of the object should correspond for the entire object.
		1979	*/
		1980	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1981	continue;
		1982
		1983	if (ob->blocked (pos.m, pos.x, pos.y))
		1984	continue;
		1985
		1986	altern [index++] = i;
		1987	}
		1988
		1989	if (!index)
		1990	return -1;
		1991
		1992	return altern [rndm (index)];
		1993	}
		1994
2262	/*	1995	/*
2263	* find_first_free_spot(archetype, mapstruct, x, y) works like	1996	* find_first_free_spot(archetype, maptile, x, y) works like
2264	* find_free_spot(), but it will search max number of squares.	1997	* find_free_spot(), but it will search max number of squares.
2265	* But it will return the first available spot, not a random choice.	1998	* 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.	1999	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2267	*/	2000	*/
2268		2001	int
2269	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2002	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2270	int i;	2003	{
2271	for(i=0;i<SIZEOFFREE;i++) {	2004	for (int i = 0; i < SIZEOFFREE; i++)
2272	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2005	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2273	return i;	2006	return i;
2274	}	2007
2275	return -1;	2008	return -1;
2276	}	2009	}
2277		2010
2278	/*	2011	/*
2279	* The function permute(arr, begin, end) randomly reorders the array	2012	* The function permute(arr, begin, end) randomly reorders the array
2280	* arr[begin..end-1].	2013	* arr[begin..end-1].
		2014	* now uses a fisher-yates shuffle, old permute was broken
2281	*/	2015	*/
		2016	static void
2282	static void permute(int *arr, int begin, int end)	2017	permute (int *arr, int begin, int end)
2283	{	2018	{
2284	int i, j, tmp, len;	2019	arr += begin;
		2020	end -= begin;
2285		2021
2286	len = end-begin;	2022	while (--end)
2287	for(i = begin; i < end; i++)	2023	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	}	2024	}
2296		2025
2297	/* new function to make monster searching more efficient, and effective!	2026	/* new function to make monster searching more efficient, and effective!
2298	* This basically returns a randomized array (in the passed pointer) of	2027	* 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	2028	* 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	2029	* 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	2030	* 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.	2031	* the 3x3 area will be searched, just not in a predictable order.
2303	*/	2032	*/
		2033	void
2304	void get_search_arr(int *search_arr)	2034	get_search_arr (int *search_arr)
2305	{	2035	{
2306	int i;	2036	int i;
2307		2037
2308	for(i = 0; i < SIZEOFFREE; i++)	2038	for (i = 0; i < SIZEOFFREE; i++)
2309	{
2310	search_arr[i] = i;	2039	search_arr[i] = i;
2311	}
2312		2040
2313	permute(search_arr, 1, SIZEOFFREE1+1);	2041	permute (search_arr, 1, SIZEOFFREE1 + 1);
2314	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2042	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2315	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2043	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2316	}	2044	}
2317		2045
2318	/*	2046	/*
2319	* find_dir(map, x, y, exclude) will search some close squares in the	2047	* find_dir(map, x, y, exclude) will search some close squares in the
2320	* given map at the given coordinates for live objects.	2048	* given map at the given coordinates for live objects.
…		…
2325	* Perhaps incorrectly, but I'm making the assumption that exclude	2053	* 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	2054	* 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	2055	* because we have to know what movement the thing looking to move
2328	* there is capable of.	2056	* there is capable of.
2329	*/	2057	*/
2330		2058	int
2331	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2059	find_dir (maptile *m, int x, int y, object *exclude)
		2060	{
2332	int i,max=SIZEOFFREE, mflags;	2061	int i, max = SIZEOFFREE, mflags;
		2062
2333	sint16 nx, ny;	2063	sint16 nx, ny;
2334	object *tmp;	2064	object *tmp;
2335	mapstruct *mp;	2065	maptile *mp;
		2066
2336	MoveType blocked, move_type;	2067	MoveType blocked, move_type;
2337		2068
2338	if (exclude && exclude->head) {	2069	if (exclude && exclude->head_ () != exclude)
		2070	{
2339	exclude = exclude->head;	2071	exclude = exclude->head;
2340	move_type = exclude->move_type;	2072	move_type = exclude->move_type;
2341	} else {	2073	}
		2074	else
		2075	{
2342	/* If we don't have anything, presume it can use all movement types. */	2076	/* If we don't have anything, presume it can use all movement types. */
2343	move_type=MOVE_ALL;	2077	move_type = MOVE_ALL;
		2078	}
		2079
		2080	for (i = 1; i < max; i++)
2344	}	2081	{
2345
2346	for(i=1;i<max;i++) {
2347	mp = m;	2082	mp = m;
2348	nx = x + freearr_x[i];	2083	nx = x + freearr_x[i];
2349	ny = y + freearr_y[i];	2084	ny = y + freearr_y[i];
2350		2085
2351	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2086	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2087
2352	if (mflags & P_OUT_OF_MAP) {	2088	if (mflags & P_OUT_OF_MAP)
		2089	max = maxfree[i];
		2090	else
		2091	{
		2092	mapspace &ms = mp->at (nx, ny);
		2093
		2094	blocked = ms.move_block;
		2095
		2096	if ((move_type & blocked) == move_type)
2353	max = maxfree[i];	2097	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) {	2098	else if (mflags & P_IS_ALIVE)
2360	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2099	{
2361	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2100	for (tmp = ms.bot; tmp; tmp = tmp->above)
		2101	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2362	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2102	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2363	break;	2103	break;
2364	}	2104
2365	}
2366	if(tmp) {	2105	if (tmp)
2367	return freedir[i];	2106	return freedir[i];
2368	}
2369	}	2107	}
2370	}	2108	}
2371	}	2109	}
		2110
2372	return 0;	2111	return 0;
2373	}	2112	}
2374		2113
2375	/*	2114	/*
2376	* distance(object 1, object 2) will return the square of the	2115	* distance(object 1, object 2) will return the square of the
2377	* distance between the two given objects.	2116	* distance between the two given objects.
2378	*/	2117	*/
2379		2118	int
2380	int distance(const object *ob1, const object *ob2) {	2119	distance (const object *ob1, const object *ob2)
2381	int i;	2120	{
2382	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2121	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	}	2122	}
2386		2123
2387	/*	2124	/*
2388	* find_dir_2(delta-x,delta-y) will return a direction in which	2125	* 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	2126	* an object which has subtracted the x and y coordinates of another
2390	* object, needs to travel toward it.	2127	* object, needs to travel toward it.
2391	*/	2128	*/
2392		2129	int
2393	int find_dir_2(int x, int y) {	2130	find_dir_2 (int x, int y)
		2131	{
2394	int q;	2132	int q;
2395		2133
2396	if(y)	2134	if (y)
2397	q=x*100/y;	2135	q = x * 100 / y;
2398	else if (x)	2136	else if (x)
2399	q= -300*x;	2137	q = -300 * x;
2400	else	2138	else
2401	return 0;	2139	return 0;
2402		2140
2403	if(y>0) {	2141	if (y > 0)
		2142	{
2404	if(q < -242)	2143	if (q < -242)
2405	return 3 ;	2144	return 3;
2406	if (q < -41)	2145	if (q < -41)
2407	return 2 ;	2146	return 2;
2408	if (q < 41)	2147	if (q < 41)
2409	return 1 ;	2148	return 1;
2410	if (q < 242)	2149	if (q < 242)
2411	return 8 ;	2150	return 8;
2412	return 7 ;	2151	return 7;
2413	}	2152	}
2414		2153
2415	if (q < -242)	2154	if (q < -242)
2416	return 7 ;	2155	return 7;
2417	if (q < -41)	2156	if (q < -41)
2418	return 6 ;	2157	return 6;
2419	if (q < 41)	2158	if (q < 41)
2420	return 5 ;	2159	return 5;
2421	if (q < 242)	2160	if (q < 242)
2422	return 4 ;	2161	return 4;
2423		2162
2424	return 3 ;	2163	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	}	2164	}
2438		2165
2439	/*	2166	/*
2440	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2167	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2441	* between two directions (which are expected to be absolute (see absdir())	2168	* between two directions (which are expected to be absolute (see absdir())
2442	*/	2169	*/
2443		2170	int
2444	int dirdiff(int dir1, int dir2) {	2171	dirdiff (int dir1, int dir2)
		2172	{
2445	int d;	2173	int d;
		2174
2446	d = abs(dir1 - dir2);	2175	d = abs (dir1 - dir2);
2447	if(d>4)	2176	if (d > 4)
2448	d = 8 - d;	2177	d = 8 - d;
		2178
2449	return d;	2179	return d;
2450	}	2180	}
2451		2181
2452	/* peterm:	2182	/* peterm:
2453	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2183	* 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	2186	* 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.	2187	* 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	2188	* Moved from spell_util.c to object.c with the other related direction
2459	* functions.	2189	* functions.
2460	*/	2190	*/
2461
2462	int reduction_dir[SIZEOFFREE][3] = {	2191	int reduction_dir[SIZEOFFREE][3] = {
2463	{0,0,0}, /* 0 */	2192	{0, 0, 0}, /* 0 */
2464	{0,0,0}, /* 1 */	2193	{0, 0, 0}, /* 1 */
2465	{0,0,0}, /* 2 */	2194	{0, 0, 0}, /* 2 */
2466	{0,0,0}, /* 3 */	2195	{0, 0, 0}, /* 3 */
2467	{0,0,0}, /* 4 */	2196	{0, 0, 0}, /* 4 */
2468	{0,0,0}, /* 5 */	2197	{0, 0, 0}, /* 5 */
2469	{0,0,0}, /* 6 */	2198	{0, 0, 0}, /* 6 */
2470	{0,0,0}, /* 7 */	2199	{0, 0, 0}, /* 7 */
2471	{0,0,0}, /* 8 */	2200	{0, 0, 0}, /* 8 */
2472	{8,1,2}, /* 9 */	2201	{8, 1, 2}, /* 9 */
2473	{1,2,-1}, /* 10 */	2202	{1, 2, -1}, /* 10 */
2474	{2,10,12}, /* 11 */	2203	{2, 10, 12}, /* 11 */
2475	{2,3,-1}, /* 12 */	2204	{2, 3, -1}, /* 12 */
2476	{2,3,4}, /* 13 */	2205	{2, 3, 4}, /* 13 */
2477	{3,4,-1}, /* 14 */	2206	{3, 4, -1}, /* 14 */
2478	{4,14,16}, /* 15 */	2207	{4, 14, 16}, /* 15 */
2479	{5,4,-1}, /* 16 */	2208	{5, 4, -1}, /* 16 */
2480	{4,5,6}, /* 17 */	2209	{4, 5, 6}, /* 17 */
2481	{6,5,-1}, /* 18 */	2210	{6, 5, -1}, /* 18 */
2482	{6,20,18}, /* 19 */	2211	{6, 20, 18}, /* 19 */
2483	{7,6,-1}, /* 20 */	2212	{7, 6, -1}, /* 20 */
2484	{6,7,8}, /* 21 */	2213	{6, 7, 8}, /* 21 */
2485	{7,8,-1}, /* 22 */	2214	{7, 8, -1}, /* 22 */
2486	{8,22,24}, /* 23 */	2215	{8, 22, 24}, /* 23 */
2487	{8,1,-1}, /* 24 */	2216	{8, 1, -1}, /* 24 */
2488	{24,9,10}, /* 25 */	2217	{24, 9, 10}, /* 25 */
2489	{9,10,-1}, /* 26 */	2218	{9, 10, -1}, /* 26 */
2490	{10,11,-1}, /* 27 */	2219	{10, 11, -1}, /* 27 */
2491	{27,11,29}, /* 28 */	2220	{27, 11, 29}, /* 28 */
2492	{11,12,-1}, /* 29 */	2221	{11, 12, -1}, /* 29 */
2493	{12,13,-1}, /* 30 */	2222	{12, 13, -1}, /* 30 */
2494	{12,13,14}, /* 31 */	2223	{12, 13, 14}, /* 31 */
2495	{13,14,-1}, /* 32 */	2224	{13, 14, -1}, /* 32 */
2496	{14,15,-1}, /* 33 */	2225	{14, 15, -1}, /* 33 */
2497	{33,15,35}, /* 34 */	2226	{33, 15, 35}, /* 34 */
2498	{16,15,-1}, /* 35 */	2227	{16, 15, -1}, /* 35 */
2499	{17,16,-1}, /* 36 */	2228	{17, 16, -1}, /* 36 */
2500	{18,17,16}, /* 37 */	2229	{18, 17, 16}, /* 37 */
2501	{18,17,-1}, /* 38 */	2230	{18, 17, -1}, /* 38 */
2502	{18,19,-1}, /* 39 */	2231	{18, 19, -1}, /* 39 */
2503	{41,19,39}, /* 40 */	2232	{41, 19, 39}, /* 40 */
2504	{19,20,-1}, /* 41 */	2233	{19, 20, -1}, /* 41 */
2505	{20,21,-1}, /* 42 */	2234	{20, 21, -1}, /* 42 */
2506	{20,21,22}, /* 43 */	2235	{20, 21, 22}, /* 43 */
2507	{21,22,-1}, /* 44 */	2236	{21, 22, -1}, /* 44 */
2508	{23,22,-1}, /* 45 */	2237	{23, 22, -1}, /* 45 */
2509	{45,47,23}, /* 46 */	2238	{45, 47, 23}, /* 46 */
2510	{23,24,-1}, /* 47 */	2239	{23, 24, -1}, /* 47 */
2511	{24,9,-1}}; /* 48 */	2240	{24, 9, -1}
		2241	}; /* 48 */
2512		2242
2513	/* Recursive routine to step back and see if we can	2243	/* Recursive routine to step back and see if we can
2514	* find a path to that monster that we found. If not,	2244	* find a path to that monster that we found. If not,
2515	* we don't bother going toward it. Returns 1 if we	2245	* we don't bother going toward it. Returns 1 if we
2516	* can see a direct way to get it	2246	* can see a direct way to get it
2517	* Modified to be map tile aware -.MSW	2247	* Modified to be map tile aware -.MSW
2518	*/	2248	*/
2519		2249	int
2520
2521	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2250	can_see_monsterP (maptile *m, int x, int y, int dir)
		2251	{
2522	sint16 dx, dy;	2252	sint16 dx, dy;
2523	int mflags;	2253	int mflags;
2524		2254
		2255	if (dir < 0)
2525	if(dir<0) return 0; /* exit condition: invalid direction */	2256	return 0; /* exit condition: invalid direction */
2526		2257
2527	dx = x + freearr_x[dir];	2258	dx = x + freearr_x[dir];
2528	dy = y + freearr_y[dir];	2259	dy = y + freearr_y[dir];
2529		2260
2530	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2261	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2531		2262
2532	/* This functional arguably was incorrect before - it was	2263	/* This functional arguably was incorrect before - it was
2533	* checking for P_WALL - that was basically seeing if	2264	* checking for P_WALL - that was basically seeing if
2534	* we could move to the monster - this is being more	2265	* we could move to the monster - this is being more
2535	* literal on if we can see it. To know if we can actually	2266	* 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	2267	* move to the monster, we'd need the monster passed in or
2537	* at least its move type.	2268	* at least its move type.
2538	*/	2269	*/
2539	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2270	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2271	return 0;
2540		2272
2541	/* yes, can see. */	2273	/* yes, can see. */
2542	if(dir < 9) return 1;	2274	if (dir < 9)
		2275	return 1;
		2276
2543	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2277	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2544	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2278	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2545	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2279	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2546	}	2280	}
2547		2281
2548
2549
2550	/*	2282	/*
2551	* can_pick(picker, item): finds out if an object is possible to be	2283	* 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	2284	* picked up by the picker. Returnes 1 if it can be
2553	* picked up, otherwise 0.	2285	* picked up, otherwise 0.
2554	*	2286	*
2555	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2287	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2556	* core dumps if they do.	2288	* core dumps if they do.
2557	*	2289	*
2558	* Add a check so we can't pick up invisible objects (0.93.8)	2290	* Add a check so we can't pick up invisible objects (0.93.8)
2559	*/	2291	*/
2560		2292	int
2561	int can_pick(const object *who, const object *item) {	2293	can_pick (const object *who, const object *item)
		2294	{
2562	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2295	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2563	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2296	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2564	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2297	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2565	(who->type==PLAYER||item->weight<who->weight/3));
2566	}	2298	}
2567
2568		2299
2569	/*	2300	/*
2570	* create clone from object to another	2301	* create clone from object to another
2571	*/	2302	*/
2572	object *object_create_clone (object *asrc) {	2303	object *
2573	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2304	object::deep_clone ()
		2305	{
		2306	assert (("deep_clone called on non-head object", is_head ()));
2574		2307
2575	if(!asrc) return NULL;	2308	object *dst = clone ();
2576	src = asrc;
2577	if(src->head)
2578	src = src->head;
2579		2309
2580	prev = NULL;	2310	object *prev = dst;
2581	for(part = src; part; part = part->more) {	2311	for (object *part = this->more; part; part = part->more)
2582	tmp = get_object();	2312	{
2583	copy_object(part,tmp);	2313	object *tmp = part->clone ();
2584	tmp->x -= src->x;
2585	tmp->y -= src->y;
2586	if(!part->head) {
2587	dst = tmp;
2588	tmp->head = NULL;
2589	} else {
2590	tmp->head = dst;	2314	tmp->head = dst;
2591	}
2592	tmp->more = NULL;
2593	if(prev)
2594	prev->more = tmp;	2315	prev->more = tmp;
2595	prev = tmp;	2316	prev = tmp;
2596	}	2317	}
2597	/*** copy inventory ***/	2318
2598	for(item = src->inv; item; item = item->below) {	2319	for (object *item = inv; item; item = item->below)
2599	(void) insert_ob_in_ob(object_create_clone(item),dst);	2320	insert_ob_in_ob (item->deep_clone (), dst);
2600	}
2601		2321
2602	return dst;	2322	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	}	2323	}
2650		2324
2651	/* This returns the first object in who's inventory that	2325	/* This returns the first object in who's inventory that
2652	* has the same type and subtype match.	2326	* has the same type and subtype match.
2653	* returns NULL if no match.	2327	* returns NULL if no match.
2654	*/	2328	*/
		2329	object *
2655	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2330	find_obj_by_type_subtype (const object *who, int type, int subtype)
2656	{	2331	{
2657	object *tmp;
2658
2659	for (tmp=who->inv; tmp; tmp=tmp->below)	2332	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2660	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2333	if (tmp->type == type && tmp->subtype == subtype)
		2334	return tmp;
2661		2335
2662	return NULL;	2336	return 0;
2663	}	2337	}
2664		2338
2665	/* If ob has a field named key, return the link from the list,	2339	const shstr &
2666	* otherwise return NULL.	2340	object::kv_get (const shstr &key) const
2667	*	2341	{
2668	* key must be a passed in shared string - otherwise, this won't	2342	for (key_value *kv = key_values; kv; kv = kv->next)
2669	* do the desired thing.	2343	if (kv->key == key)
2670	*/	2344	return kv->value;
2671	key_value * get_ob_key_link(const object * ob, const char * key) {	2345
2672	key_value * link;	2346	return shstr_null;
		2347	}
		2348
		2349	void
		2350	object::kv_set (const shstr &key, const shstr &value)
		2351	{
		2352	for (key_value *kv = key_values; kv; kv = kv->next)
		2353	if (kv->key == key)
		2354	{
		2355	kv->value = value;
		2356	return;
		2357	}
		2358
		2359	key_value *kv = new key_value;
		2360
		2361	kv->next = key_values;
		2362	kv->key = key;
		2363	kv->value = value;
		2364
		2365	key_values = kv;
		2366	}
		2367
		2368	void
		2369	object::kv_del (const shstr &key)
		2370	{
		2371	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2372	if ((*kvp)->key == key)
		2373	{
		2374	key_value *kv = *kvp;
		2375	*kvp = (*kvp)->next;
		2376	delete kv;
		2377	return;
		2378	}
		2379	}
		2380
		2381	object::depth_iterator::depth_iterator (object *container)
		2382	: iterator_base (container)
		2383	{
		2384	while (item->inv)
		2385	item = item->inv;
		2386	}
		2387
		2388	void
		2389	object::depth_iterator::next ()
		2390	{
		2391	if (item->below)
2673		2392	{
2674	for (link = ob->key_values; link != NULL; link = link->next) {	2393	item = item->below;
2675	if (link->key == key) {	2394
2676	return link;	2395	while (item->inv)
		2396	item = item->inv;
		2397	}
		2398	else
		2399	item = item->env;
		2400	}
		2401
		2402	const char *
		2403	object::flag_desc (char *desc, int len) const
		2404	{
		2405	char *p = desc;
		2406	bool first = true;
		2407
		2408	*p = 0;
		2409
		2410	for (int i = 0; i < NUM_FLAGS; i++)
		2411	{
		2412	if (len <= 10) // magic constant!
		2413	{
		2414	snprintf (p, len, ",...");
		2415	break;
2677	}	2416	}
2678	}
2679
2680	return NULL;
2681	}
2682		2417
2683	/*	2418	if (flag [i])
2684	* Returns the value of op has an extra_field for key, or NULL.
2685	*
2686	* The argument doesn't need to be a shared string.
2687	*
2688	* The returned string is shared.
2689	*/
2690	const char * get_ob_key_value(const object * op, const char * const key) {
2691	key_value * link;
2692	const char * canonical_key;
2693
2694	canonical_key = find_string(key);
2695
2696	if (canonical_key == NULL) {
2697	/* 1. There being a field named key on any object
2698	* implies there'd be a shared string to find.
2699	* 2. Since there isn't, no object has this field.
2700	* 3. Therefore, *this* object doesn't have this field.
2701	*/	2419	{
2702	return NULL;	2420	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
2703	}	2421	len -= cnt;
2704		2422	p += cnt;
2705	/* This is copied from get_ob_key_link() above -	2423	first = false;
2706	* only 4 lines, and saves the function call overhead.
2707	*/
2708	for (link = op->key_values; link != NULL; link = link->next) {
2709	if (link->key == canonical_key) {
2710	return link->value;
2711	}	2424	}
2712	}	2425	}
		2426
		2427	return desc;
		2428	}
		2429
		2430	// return a suitable string describing an object in enough detail to find it
		2431	const char *
		2432	object::debug_desc (char *info) const
		2433	{
		2434	char flagdesc[512];
		2435	char info2[256 * 4];
		2436	char *p = info;
		2437
		2438	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
		2439	count,
		2440	uuid.c_str (),
		2441	&name,
		2442	title ? ",title:\"" : "",
		2443	title ? (const char *)title : "",
		2444	title ? "\"" : "",
		2445	flag_desc (flagdesc, 512), type);
		2446
		2447	if (!flag[FLAG_REMOVED] && env)
		2448	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2449
		2450	if (map)
		2451	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2452
		2453	return info;
		2454	}
		2455
		2456	const char *
		2457	object::debug_desc () const
		2458	{
		2459	static char info[3][256 * 4];
		2460	static int info_idx;
		2461
		2462	return debug_desc (info [++info_idx % 3]);
		2463	}
		2464
		2465	struct region *
		2466	object::region () const
		2467	{
		2468	return map ? map->region (x, y)
		2469	: region::default_region ();
		2470	}
		2471
		2472	const materialtype_t *
		2473	object::dominant_material () const
		2474	{
		2475	if (materialtype_t *mt = name_to_material (materialname))
		2476	return mt;
		2477
		2478	return name_to_material (shstr_unknown);
		2479	}
		2480
		2481	void
		2482	object::open_container (object *new_container)
		2483	{
		2484	if (container == new_container)
2713	return NULL;	2485	return;
2714	}
2715		2486
		2487	object *old_container = container;
2716		2488
2717	/*	2489	if (old_container)
2718	* Updates the canonical_key in op to value.
2719	*
2720	* canonical_key is a shared string (value doesn't have to be).
2721	*
2722	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2723	* keys.
2724	*
2725	* Returns TRUE on success.
2726	*/
2727	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {
2728	key_value * field = NULL, *last=NULL;
2729		2490	{
2730	for (field=op->key_values; field != NULL; field=field->next) {	2491	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
2731	if (field->key != canonical_key) {	2492	return;
2732	last = field;	2493
2733	continue;	2494	#if 0
		2495	// remove the "Close old_container" object.
		2496	if (object *closer = old_container->inv)
		2497	if (closer->type == CLOSE_CON)
		2498	closer->destroy ();
		2499	#endif
		2500
		2501	// make sure the container is available
		2502	esrv_send_item (this, old_container);
		2503
		2504	old_container->flag [FLAG_APPLIED] = false;
		2505	container = 0;
		2506
		2507	// client needs item update to make it work, client bug requires this to be separate
		2508	esrv_update_item (UPD_FLAGS, this, old_container);
		2509
		2510	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2511	play_sound (sound_find ("chest_close"));
		2512	}
		2513
		2514	if (new_container)
		2515	{
		2516	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2517	return;
		2518
		2519	// TODO: this does not seem to serve any purpose anymore?
		2520	#if 0
		2521	// insert the "Close Container" object.
		2522	if (archetype *closer = new_container->other_arch)
		2523	{
		2524	object *closer = arch_to_object (new_container->other_arch);
		2525	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2526	new_container->insert (closer);
2734	}	2527	}
		2528	#endif
		2529
		2530	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2531
		2532	// make sure the container is available, client bug requires this to be separate
		2533	esrv_send_item (this, new_container);
		2534
		2535	new_container->flag [FLAG_APPLIED] = true;
		2536	container = new_container;
		2537
		2538	// client needs flag change
		2539	esrv_update_item (UPD_FLAGS, this, new_container);
		2540	esrv_send_inventory (this, new_container);
		2541	play_sound (sound_find ("chest_open"));
2735		2542	}
2736	if (field->value) FREE_AND_CLEAR_STR(field->value);	2543	// else if (!old_container->env && contr && contr->ns)
2737	if (value)	2544	// contr->ns->floorbox_reset ();
2738	field->value = add_string(value);	2545	}
2739	else {
2740	/* Basically, if the archetype has this key set,
2741	* we need to store the null value so when we save
2742	* it, we save the empty value so that when we load,
2743	* we get this value back again.
2744	*/
2745	if (get_ob_key_link(&op->arch->clone, canonical_key))
2746	field->value = NULL;
2747	else {
2748	/* Delete this link */
2749	if (field->key) FREE_AND_CLEAR_STR(field->key);
2750	if (field->value) FREE_AND_CLEAR_STR(field->value);
2751	if (last) last->next = field->next;
2752	else op->key_values = field->next;
2753	free(field);
2754	}
2755	}
2756	return TRUE;
2757	}
2758	/* IF we get here, key doesn't exist */
2759		2546
2760	/* No field, we'll have to add it. */	2547	object *
		2548	object::force_find (const shstr name)
		2549	{
		2550	/* cycle through his inventory to look for the MARK we want to
		2551	* place
		2552	*/
		2553	for (object *tmp = inv; tmp; tmp = tmp->below)
		2554	if (tmp->type == FORCE && tmp->slaying == name)
		2555	return splay (tmp);
		2556
		2557	return 0;
		2558	}
		2559
		2560	object *
		2561	object::force_add (const shstr name, int duration)
		2562	{
		2563	if (object *force = force_find (name))
		2564	force->destroy ();
		2565
		2566	object *force = get_archetype (FORCE_NAME);
		2567
		2568	force->slaying = name;
		2569	force->stats.food = 1;
		2570	force->speed_left = -1.f;
		2571
		2572	force->set_speed (duration ? 1.f / duration : 0.f);
		2573	force->flag [FLAG_IS_USED_UP] = true;
		2574	force->flag [FLAG_APPLIED] = true;
		2575
		2576	return insert (force);
		2577	}
		2578
		2579	void
		2580	object::play_sound (faceidx sound)
		2581	{
		2582	if (!sound)
		2583	return;
		2584
		2585	if (flag [FLAG_REMOVED])
		2586	return;
		2587
		2588	if (env)
2761		2589	{
2762	if (!add_key) {	2590	if (object *pl = in_player ())
2763	return FALSE;	2591	pl->contr->play_sound (sound);
2764	}
2765	/* There isn't any good reason to store a null
2766	* value in the key/value list. If the archetype has
2767	* this key, then we should also have it, so shouldn't
2768	* be here. If user wants to store empty strings,
2769	* should pass in ""
2770	*/
2771	if (value == NULL) return TRUE;
2772		2592	}
2773	field = (key_value *) malloc(sizeof(key_value));	2593	else
		2594	map->play_sound (sound, x, y);
		2595	}
		2596
		2597	void
		2598	object::make_noise ()
		2599	{
		2600	// we do not model noise in the map, so instead put
		2601	// a temporary light into the noise source
		2602	// could use the map instead, but that's less reliable for our
		2603	// goal, which is to make invisibility a bit harder to exploit
		2604
		2605	// currently only works sensibly for players
		2606	if (!is_player ())
		2607	return;
		2608
		2609	// find old force, or create new one
		2610	object *force = force_find (shstr_noise_force);
		2611
		2612	if (force)
		2613	force->speed_left = -1.f; // patch old speed up
		2614	else
2774		2615	{
2775	field->key = add_refcount(canonical_key);	2616	force = archetype::get (shstr_noise_force);
2776	field->value = add_string(value);	2617
2777	/* Usual prepend-addition. */	2618	force->slaying = shstr_noise_force;
2778	field->next = op->key_values;	2619	force->stats.food = 1;
2779	op->key_values = field;	2620	force->speed_left = -1.f;
		2621
		2622	force->set_speed (1.f / 4.f);
		2623	force->flag [FLAG_IS_USED_UP] = true;
		2624	force->flag [FLAG_APPLIED] = true;
		2625
		2626	insert (force);
2780		2627	}
2781	return TRUE;
2782	}	2628	}
2783		2629
2784	/*
2785	* Updates the key in op to value.
2786	*
2787	* If add_key is FALSE, this will only update existing keys,
2788	* and not add new ones.
2789	* In general, should be little reason FALSE is ever passed in for add_key
2790	*
2791	* Returns TRUE on success.
2792	*/
2793	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {
2794	const char * canonical_key = NULL;
2795	int floating_ref = FALSE;
2796	int ret;
2797
2798	/* HACK This mess is to make sure set_ob_value() passes a shared string
2799	* to get_ob_key_link(), without leaving a leaked refcount.
2800	*/
2801
2802	canonical_key = find_string(key);
2803	if (canonical_key == NULL) {
2804	canonical_key = add_string(key);
2805	floating_ref = TRUE;
2806	}
2807
2808	ret = set_ob_key_value_s(op, canonical_key, value, add_key);
2809
2810	if (floating_ref) {
2811	free_string(canonical_key);
2812	}
2813
2814	return ret;
2815	}

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