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Comparing deliantra/server/common/object.C (file contents):
Revision 1.7 by root, Tue Aug 29 05:03:54 2006 UTC vs.
Revision 1.219 by root, Wed Apr 23 21:09:10 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 1.7 2006/08/29 05:03:54 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
		38	objectvec objects;
		39	activevec actives;
		40
57	short freearr_x[SIZEOFFREE]=	41	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,	42	0,
		43	0, 1, 1, 1, 0, -1, -1, -1,
		44	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};	45	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	};
60	short freearr_y[SIZEOFFREE]=	47	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,	48	0,
		49	-1, -1, 0, 1, 1, 1, 0, -1,
		50	-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};	51	-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	};
63	int maxfree[SIZEOFFREE]=	53	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,	54	0,
		55	9, 10, 13, 14, 17, 18, 21, 22,
		56	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};	57	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	};
66	int freedir[SIZEOFFREE]= {	59	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,	60	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};	61	1, 2, 3, 4, 5, 6, 7, 8,
		62	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
		63	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		64	};
69		65
		66	static void
		67	write_uuid (uval64 skip, bool sync)
		68	{
		69	CALL_BEGIN (2);
		70	CALL_ARG_SV (newSVval64 (skip));
		71	CALL_ARG_SV (boolSV (sync));
		72	CALL_CALL ("cf::write_uuid", G_DISCARD);
		73	CALL_END;
		74	}
		75
		76	static void
		77	read_uuid (void)
		78	{
		79	char filename[MAX_BUF];
		80
		81	sprintf (filename, "%s/uuid", settings.localdir);
		82
		83	seq_next_save = 0;
		84
		85	FILE *fp;
		86
		87	if (!(fp = fopen (filename, "r")))
		88	{
		89	if (errno == ENOENT)
		90	{
		91	LOG (llevInfo, "RESET uid to 1\n");
		92	UUID::cur.seq = 0;
		93	write_uuid (UUID_GAP, true);
		94	return;
		95	}
		96
		97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		98	_exit (1);
		99	}
		100
		101	UUID::BUF buf;
		102	buf[0] = 0;
		103	fgets (buf, sizeof (buf), fp);
		104
		105	if (!UUID::cur.parse (buf))
		106	{
		107	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
		108	_exit (1);
		109	}
		110
		111	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
		112
		113	write_uuid (UUID_GAP, true);
		114	fclose (fp);
		115	}
		116
		117	UUID
		118	UUID::gen ()
		119	{
		120	UUID uid;
		121
		122	uid.seq = ++cur.seq;
		123
		124	if (expect_false (cur.seq >= seq_next_save))
		125	{
		126	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		127	write_uuid (UUID_GAP, false);
		128	}
		129
		130
		131	return uid;
		132	}
		133
		134	void
		135	UUID::init ()
		136	{
		137	read_uuid ();
		138	}
70		139
71	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	140	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		141	static bool
72	static int compare_ob_value_lists_one(const object * wants, const object * has) {	142	compare_ob_value_lists_one (const object *wants, const object *has)
		143	{
73	key_value * wants_field;	144	key_value *wants_field;
74		145
75	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	146	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
76	* objects with lists are rare, and lists stay short. If not, use a	147	* objects with lists are rare, and lists stay short. If not, use a
77	* different structure or at least keep the lists sorted...	148	* different structure or at least keep the lists sorted...
78	*/	149	*/
79		150
80	/* For each field in wants, */	151	/* For each field in wants, */
81	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	152	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
		153	{
82	key_value * has_field;	154	key_value *has_field;
83		155
84	/* Look for a field in has with the same key. */	156	/* Look for a field in has with the same key. */
85	has_field = get_ob_key_link(has, wants_field->key);	157	has_field = get_ob_key_link (has, wants_field->key);
86		158
87	if (has_field == NULL) {	159	if (!has_field)
88	/* No field with that name. */	160	return 0; /* No field with that name. */
89	return FALSE;	161
90	}
91
92	/* Found the matching field. */	162	/* Found the matching field. */
93	if (has_field->value != wants_field->value) {	163	if (has_field->value != wants_field->value)
94	/* Values don't match, so this half of the comparison is false. */	164	return 0; /* Values don't match, so this half of the comparison is false. */
95	return FALSE;	165
96	}
97
98	/* If we get here, we found a match. Now for the next field in wants. */	166	/* If we get here, we found a match. Now for the next field in wants. */
99	}
100		167	}
		168
101	/* If we get here, every field in wants has a matching field in has. */	169	/* If we get here, every field in wants has a matching field in has. */
102	return TRUE;	170	return 1;
103	}	171	}
104		172
105	/* Returns TRUE if ob1 has the same key_values as ob2. */	173	/* Returns TRUE if ob1 has the same key_values as ob2. */
		174	static bool
106	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	175	compare_ob_value_lists (const object *ob1, const object *ob2)
		176	{
107	/* However, there may be fields in has which aren't partnered in wants,	177	/* However, there may be fields in has which aren't partnered in wants,
108	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
109	*/	179	*/
110	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
111	}	181	}
112		182
113	/* Function examines the 2 objects given to it, and returns true if	183	/* Function examines the 2 objects given to it, and returns true if
114	* they can be merged together.	184	* they can be merged together.
115	*	185	*
116	* Note that this function appears a lot longer than the macro it	186	* Note that this function appears a lot longer than the macro it
117	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
118	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
119	*	189	*
120	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
121	*	191	*
122	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
123	* check weight	193	* check weight
124	*/	194	*/
125		195	bool object::can_merge_slow (object *ob1, object *ob2)
126	int CAN_MERGE(object *ob1, object *ob2) {	196	{
127
128	/* A couple quicksanity checks */	197	/* A couple quicksanity checks */
129	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	198	if (ob1 == ob2
		199	|| ob1->type != ob2->type
		200	|| ob1->speed != ob2->speed
		201	|| ob1->value != ob2->value
		202	|| ob1->name != ob2->name)
		203	return 0;
130		204
131	if (ob1->speed != ob2->speed) return 0;	205	/* Do not merge objects if nrof would overflow. First part checks
		206	* for unsigned overflow (2c), second part checks whether the result
		207	* would fit into a 32 bit signed int, which is often used to hold
		208	* nrof values.
		209	*/
		210	if (~ob1->nrof < ob2->nrof || ob1->nrof + ob2->nrof > (1UL << 31))
		211	return 0;
		212
		213	/* If the objects have been identified, set the BEEN_APPLIED flag.
		214	* This is to the comparison of the flags below will be OK. We
		215	* just can't ignore the been applied or identified flags, as they
		216	* are not equal - just if it has been identified, the been_applied
		217	* flags lose any meaning.
		218	*/
		219	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
		220	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
		221
		222	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
		223	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
		224
		225	if (ob1->arch->name != ob2->arch->name
		226	|| ob1->name != ob2->name
		227	|| ob1->title != ob2->title
		228	|| ob1->msg != ob2->msg
		229	|| ob1->weight != ob2->weight
		230	|| ob1->attacktype != ob2->attacktype
		231	|| ob1->magic != ob2->magic
		232	|| ob1->slaying != ob2->slaying
		233	|| ob1->skill != ob2->skill
		234	|| ob1->value != ob2->value
		235	|| ob1->animation_id != ob2->animation_id
		236	|| ob1->client_type != ob2->client_type
		237	|| ob1->materialname != ob2->materialname
		238	|| ob1->lore != ob2->lore
		239	|| ob1->subtype != ob2->subtype
		240	|| ob1->move_type != ob2->move_type
		241	|| ob1->move_block != ob2->move_block
		242	|| ob1->move_allow != ob2->move_allow
		243	|| ob1->move_on != ob2->move_on
		244	|| ob1->move_off != ob2->move_off
		245	|| ob1->move_slow != ob2->move_slow
		246	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		247	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		248	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
		249	return 0;
		250
		251	if ((ob1->flag ^ ob2->flag)
		252	.reset (FLAG_INV_LOCKED)
		253	.reset (FLAG_CLIENT_SENT)
		254	.reset (FLAG_REMOVED)
		255	.any ())
		256	return 0;
		257
		258	/* This is really a spellbook check - we should in general
		259	* not merge objects with real inventories, as splitting them
		260	* is hard.
		261	*/
		262	if (ob1->inv || ob2->inv)
		263	{
		264	if (!(ob1->inv && ob2->inv))
		265	return 0; /* inventories differ in length */
		266
		267	if (ob1->inv->below || ob2->inv->below)
		268	return 0; /* more than one object in inv */
		269
		270	if (!object::can_merge (ob1->inv, ob2->inv))
		271	return 0; /* inventory objects differ */
		272
		273	/* inventory ok - still need to check rest of this object to see
		274	* if it is valid.
		275	*/
		276	}
		277
		278	/* Don't merge objects that are applied. With the new 'body' code,
		279	* it is possible for most any character to have more than one of
		280	* some items equipped, and we don't want those to merge.
		281	*/
		282	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
		283	return 0;
		284
132	/* Note sure why the following is the case - either the object has to	285	/* 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	286	* be animated or have a very low speed. Is this an attempted monster
134	* check?	287	* check?
135	*/	288	*/
136	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)	289	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
137	return 0;
138
139	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
140	* value could not be stored in a sint32 (which unfortunately sometimes is
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	}
160
161	/* If the objects have been identified, set the BEEN_APPLIED flag.
162	* This is to the comparison of the flags below will be OK. We
163	* just can't ignore the been applied or identified flags, as they
164	* are not equal - just if it has been identified, the been_applied
165	* flags lose any meaning.
166	*/
167	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))
168	SET_FLAG(ob1, FLAG_BEEN_APPLIED);
169
170	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))
171	SET_FLAG(ob2, FLAG_BEEN_APPLIED);
172
173
174	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
175	* being locked in inventory should prevent merging.
176	* 0x4 in flags3 is CLIENT_SENT
177	*/
178	if ((ob1->arch != ob2->arch) ||
179	(ob1->flags[0] != ob2->flags[0]) ||
180	(ob1->flags[1] != ob2->flags[1]) ||
181	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||
182	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
183	(ob1->name != ob2->name) ||
184	(ob1->title != ob2->title) ||
185	(ob1->msg != ob2->msg) ||
186	(ob1->weight != ob2->weight) ||
187	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||
188	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||
189	(ob1->attacktype != ob2->attacktype) ||
190	(ob1->magic != ob2->magic) ||
191	(ob1->slaying != ob2->slaying) ||
192	(ob1->skill != ob2->skill) ||
193	(ob1->value != ob2->value) ||
194	(ob1->animation_id != ob2->animation_id) ||
195	(ob1->client_type != ob2->client_type) ||
196	(ob1->materialname != ob2->materialname) ||
197	(ob1->lore != ob2->lore) ||
198	(ob1->subtype != ob2->subtype) ||
199	(ob1->move_type != ob2->move_type) ||
200	(ob1->move_block != ob2->move_block) ||
201	(ob1->move_allow != ob2->move_allow) ||
202	(ob1->move_on != ob2->move_on) ||
203	(ob1->move_off != ob2->move_off) ||
204	(ob1->move_slow != ob2->move_slow) ||
205	(ob1->move_slow_penalty != ob2->move_slow_penalty)
206	)
207	return 0;	290	return 0;
208		291
209	/* Don't merge objects that are applied. With the new 'body' code,
210	* it is possible for most any character to have more than one of
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) {	292	switch (ob1->type)
		293	{
217	case SCROLL:	294	case SCROLL:
218	if (ob1->level != ob2->level) return 0;	295	if (ob1->level != ob2->level)
		296	return 0;
219	break;	297	break;
220
221	}	298	}
		299
222	if (ob1->key_values != NULL || ob2->key_values != NULL) {	300	if (ob1->key_values || ob2->key_values)
		301	{
223	/* At least one of these has key_values. */	302	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {	303	if ((!ob1->key_values) != (!ob2->key_values))
225	/* One has fields, but the other one doesn't. */	304	return 0; /* One has fields, but the other one doesn't. */
		305
		306	if (!compare_ob_value_lists (ob1, ob2))
		307	return 0;
		308	}
		309
		310	if (ob1->self || ob2->self)
		311	{
		312	ob1->optimise ();
		313	ob2->optimise ();
		314
		315	if (ob1->self || ob2->self)
		316	{
		317	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		318	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		319
		320	if (k1 != k2)
226	return 0;	321	return 0;
227	} else if (!compare_ob_value_lists(ob1, ob2)) {	322
		323	if (k1 == 0)
		324	return 1;
		325
		326	if (!cfperl_can_merge (ob1, ob2))
228	return 0;	327	return 0;
229	}	328	}
230	}	329	}
231		330
232	/* Everything passes, must be OK. */	331	/* Everything passes, must be OK. */
233	return 1;	332	return 1;
234	}	333	}
235		334
		335	// find player who can see this object
		336	object *
		337	object::visible_to () const
		338	{
		339	if (!flag [FLAG_REMOVED])
		340	{
		341	// see if we are in a container of sorts
		342	if (env)
		343	{
		344	// the player inventory itself is always visible
		345	if (env->type == PLAYER)
		346	return env;
		347
		348	// else a player could have our env open
		349	object *envest = env->outer_env ();
		350
		351	// the player itself is always on a map, so we will find him here
		352	// even if our inv is in a player.
		353	if (envest->is_on_map ())
		354	if (object *pl = envest->ms ().player ())
		355	if (pl->container == env)
		356	return pl;
		357	}
		358	else
		359	{
		360	// maybe there is a player standing on the same mapspace
		361	// this will catch the case where "this" is a player
		362	if (object *pl = ms ().player ())
		363	return pl;
		364	}
		365	}
		366
		367	return 0;
		368	}
		369
		370	// adjust weight per container type ("of holding")
		371	static sint32
		372	weight_adjust (object *op, sint32 weight)
		373	{
		374	return op->type == CONTAINER
		375	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		376	: weight;
		377	}
		378
236	/*	379	/*
		380	* adjust_weight(object, weight) adds the specified weight to an object,
		381	* and also updates how much the environment(s) is/are carrying.
		382	*/
		383	static void
		384	adjust_weight (object *op, sint32 weight)
		385	{
		386	while (op)
		387	{
		388	weight = weight_adjust (op, weight);
		389
		390	if (!weight)
		391	return;
		392
		393	op->carrying += weight;
		394
		395	if (object *pl = op->visible_to ())
		396	if (pl != op) // player is handled lazily
		397	esrv_update_item (UPD_WEIGHT, pl, op);
		398
		399	op = op->env;
		400	}
		401	}
		402
		403	/*
237	* sum_weight() is a recursive function which calculates the weight	404	* this is a recursive function which calculates the weight
238	* an object is carrying. It goes through in figures out how much	405	* an object is carrying. It goes through op and figures out how much
239	* containers are carrying, and sums it up.	406	* containers are carrying, and sums it up.
240	*/	407	*/
241	signed long sum_weight(object *op) {	408	void
242	signed long sum;	409	object::update_weight ()
243	object *inv;	410	{
244	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	411	sint32 sum = 0;
		412
		413	for (object *op = inv; op; op = op->below)
		414	{
245	if (inv->inv)	415	if (op->inv)
246	sum_weight(inv);	416	op->update_weight ();
247	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	417
		418	sum += op->total_weight ();
248	}	419	}
249	if (op->type == CONTAINER && op->stats.Str)	420
250	sum = (sum * (100 - op->stats.Str))/100;	421	sum = weight_adjust (this, sum);
251	if(op->carrying != sum)	422
		423	if (sum != carrying)
		424	{
252	op->carrying = sum;	425	carrying = sum;
253	return sum;
254	}
255		426
		427	if (object *pl = visible_to ())
		428	if (pl != this) // player is handled lazily
		429	esrv_update_item (UPD_WEIGHT, pl, this);
		430	}
		431	}
		432
256	/**	433	/*
257	* Return the outermost environment object for a given object.	434	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
258	*/	435	*/
259		436	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) {	437	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	{	438	{
340	char *cp;	439	if (!op)
		440	return strdup ("[NULLOBJ]");
341		441
342	if(op==NULL)	442	object_freezer freezer;
343	{	443	op->write (freezer);
344	strcpy(outstr,"[NULL pointer]");	444	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	}	445	}
382		446
383	/*	447	/*
384	* get_nearest_part(multi-object, object 2) returns the part of the	448	* get_nearest_part(multi-object, object 2) returns the part of the
385	* multi-object 1 which is closest to the second object.	449	* multi-object 1 which is closest to the second object.
386	* If it's not a multi-object, it is returned.	450	* If it's not a multi-object, it is returned.
387	*/	451	*/
388		452	object *
389	object *get_nearest_part(object *op, const object *pl) {	453	get_nearest_part (object *op, const object *pl)
		454	{
390	object *tmp,*closest;	455	object *tmp, *closest;
391	int last_dist,i;	456	int last_dist, i;
		457
392	if(op->more==NULL)	458	if (!op->more)
393	return op;	459	return op;
		460
394	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	461	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		462	tmp;
		463	tmp = tmp->more)
395	if((i=distance(tmp,pl))<last_dist)	464	if ((i = distance (tmp, pl)) < last_dist)
396	closest=tmp,last_dist=i;	465	closest = tmp, last_dist = i;
		466
397	return closest;	467	return closest;
398	}	468	}
399		469
400	/*	470	/*
401	* Returns the object which has the count-variable equal to the argument.	471	* Returns the object which has the count-variable equal to the argument.
		472	* VERRRY slow.
402	*/	473	*/
403		474	object *
404	object *find_object(tag_t i) {	475	find_object (tag_t i)
405	object *op;	476	{
406	for(op=objects;op!=NULL;op=op->next)	477	for_all_objects (op)
407	if(op->count==i)	478	if (op->count == i)
408	break;
409	return op;	479	return op;
		480
		481	return 0;
410	}	482	}
411		483
412	/*	484	/*
413	* Returns the first object which has a name equal to the argument.	485	* Returns the first object which has a name equal to the argument.
414	* Used only by the patch command, but not all that useful.	486	* Used only by the patch command, but not all that useful.
415	* Enables features like "patch <name-of-other-player> food 999"	487	* Enables features like "patch <name-of-other-player> food 999"
416	*/	488	*/
417		489	object *
418	object *find_object_name(const char *str) {	490	find_object_name (const char *str)
419	const char *name=add_string(str);	491	{
		492	shstr_cmp str_ (str);
420	object *op;	493	object *op;
421	for(op=objects;op!=NULL;op=op->next)	494
		495	for_all_objects (op)
422	if(op->name==name)	496	if (op->name == str_)
423	break;	497	break;
424	free_string(name);	498
425	return op;	499	return op;
426	}	500	}
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		501
481	/*	502	/*
482	* Sets the owner and sets the skill and exp pointers to owner's current	503	* Sets the owner and sets the skill and exp pointers to owner's current
483	* skill and experience objects.	504	* skill and experience objects.
484	*/	505	* ACTUALLY NO! investigate! TODO
485	void set_owner (object *op, object *owner)
486	{
487	if(owner==NULL||op==NULL)
488	return;
489
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;
506
507	op->ownercount=owner->count;
508	owner->refcount++;
509
510	}
511
512	/* Set the owner to clone's current owner and set the skill and experience
513	* objects to clone's objects (typically those objects that where the owner's
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	{
524	object *owner = get_owner (clone);
525	if (owner == NULL) {
526	/* players don't have owners - they own themselves. Update
527	* as appropriate.
528	*/	506	*/
529	if (clone->type == PLAYER) owner=clone;	507	void
530	else return;	508	object::set_owner (object *owner)
		509	{
		510	// allow objects which own objects
		511	if (owner)
		512	while (owner->owner)
		513	owner = owner->owner;
		514
		515	if (flag [FLAG_FREED])
531	}	516	{
532	set_owner(op, owner);	517	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		518	return;
		519	}
533		520
		521	this->owner = owner;
534	}	522	}
535		523
536	/*	524	int
537	* Resets vital variables in an object	525	object::slottype () const
538	*/	526	{
		527	if (type == SKILL)
		528	{
		529	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		530	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		531	}
		532	else
		533	{
		534	if (slot [body_combat].info) return slot_combat;
		535	if (slot [body_range ].info) return slot_ranged;
		536	}
		537
		538	return slot_none;
		539	}
539		540
540	void reset_object(object *op) {	541	bool
		542	object::change_weapon (object *ob)
		543	{
		544	if (current_weapon == ob)
		545	return true;
541		546
542	op->name = NULL;	547	if (chosen_skill)
543	op->name_pl = NULL;	548	chosen_skill->flag [FLAG_APPLIED] = false;
544	op->title = NULL;	549
545	op->race = NULL;	550	current_weapon = ob;
546	op->slaying = NULL;	551	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
547	op->skill = NULL;	552
548	op->msg = NULL;	553	if (chosen_skill)
549	op->materialname = NULL;	554	chosen_skill->flag [FLAG_APPLIED] = true;
550	op->lore = NULL;	555
551	clear_object(op);	556	update_stats ();
		557
		558	if (ob)
		559	{
		560	// now check wether any body locations became invalid, in which case
		561	// we cannot apply the weapon at the moment.
		562	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		563	if (slot[i].used < 0)
		564	{
		565	current_weapon = chosen_skill = 0;
		566	update_stats ();
		567
		568	new_draw_info_format (NDI_UNIQUE, 0, this,
		569	"You try to balance all your items at once, "
		570	"but the %s is just too much for your body. "
		571	"[You need to unapply some items first.]", &ob->name);
		572	return false;
		573	}
		574
		575	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		576	}
		577	else
		578	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		579
		580	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		581	{
		582	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		583	&name, ob->debug_desc ());
		584	return false;
		585	}
		586
		587	return true;
552	}	588	}
553		589
554	/* Zero the key_values on op, decrementing the shared-string	590	/* Zero the key_values on op, decrementing the shared-string
555	* refcounts and freeing the links.	591	* refcounts and freeing the links.
556	*/	592	*/
		593	static void
557	static void free_key_values(object * op) {	594	free_key_values (object *op)
558	key_value * i;	595	{
559	key_value * next = NULL;	596	for (key_value *i = op->key_values; i; )
560		597	{
561	if (op->key_values == NULL) return;	598	key_value *next = i->next;
		599	delete i;
		600
		601	i = next;
562		602	}
563	for (i = op->key_values; i != NULL; i = next) {	603
564	/* Store next *first*. */	604	op->key_values = 0;
565	next = i->next;	605	}
		606
		607	object &
		608	object::operator =(const object &src)
		609	{
		610	bool is_freed = flag [FLAG_FREED];
		611	bool is_removed = flag [FLAG_REMOVED];
		612
		613	*(object_copy *)this = src;
		614
		615	flag [FLAG_FREED] = is_freed;
		616	flag [FLAG_REMOVED] = is_removed;
		617
		618	/* Copy over key_values, if any. */
		619	if (src.key_values)
		620	{
		621	key_value *tail = 0;
		622	key_values = 0;
		623
		624	for (key_value *i = src.key_values; i; i = i->next)
566		625	{
567	if (i->key) FREE_AND_CLEAR_STR(i->key);	626	key_value *new_link = new key_value;
568	if (i->value) FREE_AND_CLEAR_STR(i->value);	627
569	i->next = NULL;	628	new_link->next = 0;
570	free(i);	629	new_link->key = i->key;
571	}	630	new_link->value = i->value;
		631
		632	/* Try and be clever here, too. */
		633	if (!key_values)
		634	{
		635	key_values = new_link;
		636	tail = new_link;
		637	}
		638	else
		639	{
		640	tail->next = new_link;
		641	tail = new_link;
		642	}
		643	}
572		644	}
573	op->key_values = NULL;
574	}	645	}
575		646
576
577	/*	647	/*
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,	648	* copy_to first frees everything allocated by the dst object,
653	* and then copies the contends of the first object into the second	649	* and then copies the contents of itself into the second
654	* object, allocating what needs to be allocated. Basically, any	650	* object, allocating what needs to be allocated. Basically, any
655	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	651	* 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	652	* if the first object is freed, the pointers in the new object
657	* will point at garbage.	653	* will point at garbage.
658	*/	654	*/
		655	void
		656	object::copy_to (object *dst)
		657	{
		658	*dst = *this;
659		659
660	void copy_object(object *op2, object *op) {	660	if (speed < 0)
661	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);	661	dst->speed_left -= rndm ();
662	event *evt, *evt2, *evt_new;
663		662
664	op->clear ();	663	dst->set_speed (dst->speed);
665
666	/* Decrement the refcounts, but don't bother zeroing the fields;
667	they'll be overwritten by memcpy. */
668	if(op->name!=NULL) free_string(op->name);
669	if(op->name_pl!=NULL) free_string(op->name_pl);
670	if(op->title!=NULL) free_string(op->title);
671	if(op->race!=NULL) free_string(op->race);
672	if(op->slaying!=NULL) free_string(op->slaying);
673	if(op->skill!=NULL) free_string(op->skill);
674	if(op->msg!=NULL) free_string(op->msg);
675	if(op->lore!=NULL) free_string(op->lore);
676	if(op->materialname != NULL) free_string(op->materialname);
677	if(op->custom_name != NULL) free_string(op->custom_name);
678
679	/* Basically, same code as from clear_object() */
680	for (evt = op->events; evt; evt=evt2) {
681	evt2 = evt->next;
682
683	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
684	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
685	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
686
687	free(evt);
688	}
689	op->events = NULL;
690
691	free_key_values(op);
692
693	*(object_special *)op = *(object_special *)op2;
694	op2->clone (op);
695
696	if(is_freed) SET_FLAG(op,FLAG_FREED);
697	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
698	if(op->name!=NULL) add_refcount(op->name);
699	if(op->name_pl!=NULL) add_refcount(op->name_pl);
700	if(op->title!=NULL) add_refcount(op->title);
701	if(op->race!=NULL) add_refcount(op->race);
702	if(op->slaying!=NULL) add_refcount(op->slaying);
703	if(op->skill!=NULL) add_refcount(op->skill);
704	if(op->lore!=NULL) add_refcount(op->lore);
705	if(op->msg!=NULL) add_refcount(op->msg);
706	if(op->custom_name!=NULL) add_refcount(op->custom_name);
707	if (op->materialname != NULL) add_refcount(op->materialname);
708
709	if((op2->speed<0) && !editor)
710	op->speed_left=op2->speed_left-RANDOM()%200/100.0;
711
712	/* Copy over event information */
713	evt2 = NULL;
714	for (evt = op2->events; evt; evt=evt->next) {
715	evt_new = (event *) malloc(sizeof(event));
716	memcpy(evt_new, evt, sizeof(event));
717	if (evt_new->hook) add_refcount(evt_new->hook);
718	if (evt_new->plugin) add_refcount(evt_new->plugin);
719	if (evt_new->options) add_refcount(evt_new->options);
720	evt_new->next = NULL;
721
722	/* Try to be a little clever here, and store away the
723	* last event we copied, so that its simpler to update the
724	* pointer.
725	*/
726	if (evt2)
727	evt2->next = evt_new;
728	else
729	op->events = evt_new;
730
731	evt2 = evt_new;
732	}
733	/* Copy over key_values, if any. */
734	if (op2->key_values != NULL) {
735	key_value * tail = NULL;
736	key_value * i;
737
738	op->key_values = NULL;
739
740	for (i = op2->key_values; i != NULL; i = i->next) {
741	key_value * new_link = (key_value *) malloc(sizeof(key_value));
742
743	new_link->next = NULL;
744	new_link->key = add_refcount(i->key);
745	if (i->value)
746	new_link->value = add_refcount(i->value);
747	else
748	new_link->value = NULL;
749
750	/* Try and be clever here, too. */
751	if (op->key_values == NULL) {
752	op->key_values = new_link;
753	tail = new_link;
754	} else {
755	tail->next = new_link;
756	tail = new_link;
757	}
758	}
759	}
760
761	update_ob_speed(op);
762	}	664	}
763		665
764	/*	666	void
765	* expand_objects() allocates more objects for the list of unused objects.	667	object::instantiate ()
766	* It is called from get_object() if the unused list is empty.	668	{
767	*/	669	if (!uuid.seq) // HACK
		670	uuid = UUID::gen ();
768		671
769	void expand_objects(void) {	672	speed_left = -0.1f;
770	int i;	673	/* copy the body_info to the body_used - this is only really
771	object *obj;	674	* need for monsters, but doesn't hurt to do it for everything.
772	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));	675	* by doing so, when a monster is created, it has good starting
773		676	* values for the body_used info, so when items are created
774	if(obj==NULL)	677	* for it, they can be properly equipped.
775	fatal(OUT_OF_MEMORY);
776	free_objects=obj;
777	obj[0].prev=NULL;
778	obj[0].next= &obj[1],
779	SET_FLAG(&(obj[0]), FLAG_REMOVED);
780	SET_FLAG(&(obj[0]), FLAG_FREED);
781
782	for(i=1;i<OBJ_EXPAND-1;i++) {
783	obj[i].next= &obj[i+1],
784	obj[i].prev= &obj[i-1],
785	SET_FLAG(&(obj[i]), FLAG_REMOVED);
786	SET_FLAG(&(obj[i]), FLAG_FREED);
787	}
788	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
789	obj[OBJ_EXPAND-1].next=NULL,
790	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
791	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
792
793	nrofallocobjects += OBJ_EXPAND;
794	nroffreeobjects += OBJ_EXPAND;
795	}
796
797	/*
798	* get_object() grabs an object from the list of unused objects, makes
799	* sure it is initialised, and returns it.
800	* If there are no free objects, expand_objects() is called to get more.
801	*/
802
803	object *get_object(void) {
804	object *op;
805
806	if(free_objects==NULL) {
807	expand_objects();
808	}
809	op=free_objects;
810	#ifdef MEMORY_DEBUG
811	/* The idea is hopefully by doing a realloc, the memory
812	* debugging program will now use the current stack trace to
813	* report leaks.
814	*/	678	*/
815	op = realloc(op, sizeof(object));	679	for (int i = NUM_BODY_LOCATIONS; i--; )
816	SET_FLAG(op, FLAG_REMOVED);	680	slot[i].used = slot[i].info;
817	SET_FLAG(op, FLAG_FREED);
818	#endif
819		681
820	if(!QUERY_FLAG(op,FLAG_FREED)) {	682	attachable::instantiate ();
821	LOG(llevError,"Fatal: Getting busy object.\n");	683	}
822	}	684
823	free_objects=op->next;	685	object *
824	if(free_objects!=NULL)	686	object::clone ()
825	free_objects->prev=NULL;	687	{
826	op->count= ++ob_count;	688	object *neu = create ();
827	op->name=NULL;	689	copy_to (neu);
828	op->name_pl=NULL;
829	op->title=NULL;
830	op->race=NULL;
831	op->slaying=NULL;
832	op->skill = NULL;
833	op->lore=NULL;
834	op->msg=NULL;
835	op->materialname=NULL;
836	op->next=objects;
837	op->prev=NULL;
838	op->active_next = NULL;
839	op->active_prev = NULL;
840	if(objects!=NULL)
841	objects->prev=op;
842	objects=op;
843	clear_object(op);
844	SET_FLAG(op,FLAG_REMOVED);
845	nroffreeobjects--;
846	return op;	690	return neu;
847	}	691	}
848		692
849	/*	693	/*
850	* If an object with the IS_TURNABLE() flag needs to be turned due	694	* 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	695	* 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.	696	* be called to update the face variable, _and_ how it looks on the map.
853	*/	697	*/
854		698	void
855	void update_turn_face(object *op) {	699	update_turn_face (object *op)
		700	{
856	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	701	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
857	return;	702	return;
		703
858	SET_ANIMATION(op, op->direction);	704	SET_ANIMATION (op, op->direction);
859	update_object(op,UP_OBJ_FACE);	705	update_object (op, UP_OBJ_FACE);
860	}	706	}
861		707
862	/*	708	/*
863	* Updates the speed of an object. If the speed changes from 0 to another	709	* 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.	710	* 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.	711	* This function needs to be called whenever the speed of an object changes.
866	*/	712	*/
867		713	void
868	void update_ob_speed(object *op) {	714	object::set_speed (float speed)
869	extern int arch_init;	715	{
870		716	if (flag [FLAG_FREED] && speed)
871	/* No reason putting the archetypes objects on the speed list,	717	{
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);	718	LOG (llevError, "Object %s is freed but has speed.\n", &name);
877	#ifdef MANY_CORES	719	speed = 0;
878	abort();
879	#else
880	op->speed = 0;
881	#endif
882	}	720	}
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		721
891	/* process_events() expects us to insert the object at the beginning	722	this->speed = speed;
892	* of the list. */	723
893	op->active_next = active_objects;	724	if (has_active_speed ())
894	if (op->active_next!=NULL)	725	activate ();
895	op->active_next->active_prev = op;
896	active_objects = op;
897	}
898	else {	726	else
899	/* If not on the active list, nothing needs to be done */	727	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	}	728	}
917		729
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	/*	730	/*
947	* update_object() updates the array which represents the map.	731	* update_object() updates the the map.
948	* It takes into account invisible objects (and represent squares covered	732	* It takes into account invisible objects (and represent squares covered
949	* by invisible objects by whatever is below them (unless it's another	733	* by invisible objects by whatever is below them (unless it's another
950	* invisible object, etc...)	734	* invisible object, etc...)
951	* If the object being updated is beneath a player, the look-window	735	* 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	736	* of that player is updated (this might be a suboptimal way of
953	* updating that window, though, since update_object() is called _often_)	737	* updating that window, though, since update_object() is called _often_)
954	*	738	*
955	* action is a hint of what the caller believes need to be done.	739	* 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:	740	* current action are:
961	* UP_OBJ_INSERT: op was inserted	741	* UP_OBJ_INSERT: op was inserted
962	* UP_OBJ_REMOVE: op was removed	742	* UP_OBJ_REMOVE: op was removed
963	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	743	* 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.	744	* as that is easier than trying to look at what may have changed.
965	* UP_OBJ_FACE: only the objects face has changed.	745	* UP_OBJ_FACE: only the objects face has changed.
966	*/	746	*/
967		747	void
968	void update_object(object *op, int action) {	748	update_object (object *op, int action)
969	int update_now=0, flags;	749	{
970	MoveType move_on, move_off, move_block, move_slow;
971
972	if (op == NULL) {	750	if (op == NULL)
		751	{
973	/* this should never happen */	752	/* this should never happen */
974	LOG(llevDebug,"update_object() called for NULL object.\n");	753	LOG (llevDebug, "update_object() called for NULL object.\n");
975	return;	754	return;
976	}
977		755	}
978	if(op->env!=NULL) {	756
		757	if (op->env)
		758	{
979	/* Animation is currently handled by client, so nothing	759	/* Animation is currently handled by client, so nothing
980	* to do in this case.	760	* to do in this case.
981	*/	761	*/
982	return;	762	return;
983	}	763	}
984		764
985	/* If the map is saving, don't do anything as everything is	765	/* If the map is saving, don't do anything as everything is
986	* going to get freed anyways.	766	* going to get freed anyways.
987	*/	767	*/
988	if (!op->map || op->map->in_memory == MAP_SAVING) return;	768	if (!op->map || op->map->in_memory == MAP_SAVING)
989		769	return;
		770
990	/* make sure the object is within map boundaries */	771	/* make sure the object is within map boundaries */
991	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	772	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)) {	773	{
993	LOG(llevError,"update_object() called for object out of map!\n");	774	LOG (llevError, "update_object() called for object out of map!\n");
994	#ifdef MANY_CORES	775	#ifdef MANY_CORES
995	abort();	776	abort ();
996	#endif	777	#endif
997	return;	778	return;
998	}
999		779	}
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		780
		781	mapspace &m = op->ms ();
		782
		783	if (!(m.flags_ & P_UPTODATE))
		784	/* nop */;
1007	if (action == UP_OBJ_INSERT) {	785	else if (action == UP_OBJ_INSERT)
		786	{
		787	// this is likely overkill, TODO: revisit (schmorp)
1008	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	788	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))	789	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
1012	update_now=1;	790	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
1013		791	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		792	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
1014	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	793	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
1015	update_now=1;	794	|| (m.move_on | op->move_on ) != m.move_on
1016		795	|| (m.move_off | op->move_off ) != m.move_off
1017	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	796	|| (m.move_slow | op->move_slow) != m.move_slow
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;
1022	/* This isn't perfect, but I don't expect a lot of objects to	797	/* This isn't perfect, but I don't expect a lot of objects to
1023	* to have move_allow right now.	798	* to have move_allow right now.
1024	*/	799	*/
1025	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	800	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
1026	update_now=1;	801	|| 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;	802	m.flags_ = 0;
1028	}	803	}
1029	/* if the object is being removed, we can't make intelligent	804	/* if the object is being removed, we can't make intelligent
1030	* decisions, because remove_ob can't really pass the object	805	* decisions, because remove_ob can't really pass the object
1031	* that is being removed.	806	* that is being removed.
1032	*/	807	*/
1033	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	808	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1034	update_now=1;	809	m.flags_ = 0;
1035	} else if (action == UP_OBJ_FACE) {	810	else if (action == UP_OBJ_FACE)
1036	/* Nothing to do for that case */	811	/* Nothing to do for that case */ ;
1037	}
1038	else {	812	else
1039	LOG(llevError,"update_object called with invalid action: %d\n", action);	813	LOG (llevError, "update_object called with invalid action: %d\n", action);
1040	}
1041		814
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)	815	if (op->more)
1048	update_object(op->more, action);	816	update_object (op->more, action);
1049	}	817	}
1050		818
		819	object::object ()
		820	{
		821	SET_FLAG (this, FLAG_REMOVED);
1051		822
1052	/*	823	expmul = 1.0;
1053	* free_object() frees everything allocated by an object, removes	824	face = blank_face;
1054	* it from the list of used objects, and puts it on the list of	825	}
1055	* free objects. The IS_FREED() flag is set in the object.	826
1056	* The object must have been removed by remove_ob() first for	827	object::~object ()
1057	* this function to succeed.	828	{
		829	unlink ();
		830
		831	free_key_values (this);
		832	}
		833
		834	static int object_count;
		835
		836	void object::link ()
		837	{
		838	assert (!index);//D
		839	uuid = UUID::gen ();
		840	count = ++object_count;
		841
		842	refcnt_inc ();
		843	objects.insert (this);
		844	}
		845
		846	void object::unlink ()
		847	{
		848	if (!index)
		849	return;
		850
		851	objects.erase (this);
		852	refcnt_dec ();
		853	}
		854
		855	void
		856	object::activate ()
		857	{
		858	/* If already on active list, don't do anything */
		859	if (active)
		860	return;
		861
		862	if (has_active_speed ())
		863	actives.insert (this);
		864	}
		865
		866	void
		867	object::activate_recursive ()
		868	{
		869	activate ();
		870
		871	for (object *op = inv; op; op = op->below)
		872	op->activate_recursive ();
		873	}
		874
		875	/* This function removes object 'op' from the list of active
		876	* objects.
		877	* This should only be used for style maps or other such
		878	* reference maps where you don't want an object that isn't
		879	* in play chewing up cpu time getting processed.
		880	* The reverse of this is to call update_ob_speed, which
		881	* will do the right thing based on the speed of the object.
1058	*	882	*/
1059	* If free_inventory is set, free inventory as well. Else drop items in	883	void
1060	* inventory to the ground.	884	object::deactivate ()
1061	*/	885	{
		886	/* If not on the active list, nothing needs to be done */
		887	if (!active)
		888	return;
1062		889
1063	void free_object(object *ob) {	890	actives.erase (this);
1064	free_object2(ob, 0);
1065	}	891	}
1066	void free_object2(object *ob, int free_inventory) {
1067	object *tmp,*op;
1068		892
1069	ob->clear ();	893	void
		894	object::deactivate_recursive ()
		895	{
		896	for (object *op = inv; op; op = op->below)
		897	op->deactivate_recursive ();
1070		898
1071	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	899	deactivate ();
1072	LOG(llevDebug,"Free object called with non removed object\n");	900	}
1073	dump_object(ob);	901
1074	#ifdef MANY_CORES	902	void
1075	abort();	903	object::set_flag_inv (int flag, int value)
1076	#endif	904	{
		905	for (object *op = inv; op; op = op->below)
1077	}	906	{
1078	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	907	op->flag [flag] = value;
1079	LOG(llevMonster,"Warning: tried to free friendly object.\n");	908	op->set_flag_inv (flag, value);
1080	remove_friendly_object(ob);
1081	}	909	}
1082	if(QUERY_FLAG(ob,FLAG_FREED)) {	910	}
1083	dump_object(ob);	911
1084	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);	912	/*
1085	return;	913	* Remove and free all objects in the inventory of the given object.
1086	}	914	* object.c ?
1087	if(ob->more!=NULL) {	915	*/
1088	free_object2(ob->more, free_inventory);	916	void
1089	ob->more=NULL;	917	object::destroy_inv (bool drop_to_ground)
1090	}	918	{
1091	if (ob->inv) {	919	// need to check first, because the checks below might segfault
		920	// as we might be on an invalid mapspace and crossfire code
		921	// is too buggy to ensure that the inventory is empty.
		922	// corollary: if you create arrows etc. with stuff in its inventory,
		923	// cf will crash below with off-map x and y
		924	if (!inv)
		925	return;
		926
1092	/* Only if the space blocks everything do we not process -	927	/* Only if the space blocks everything do we not process -
1093	* if some form of movemnt is allowed, let objects	928	* if some form of movement is allowed, let objects
1094	* drop on that space.	929	* drop on that space.
1095	*/	930	*/
1096	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	931	if (!drop_to_ground
1097	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	932	|| !map
1098	{	933	|| map->in_memory != MAP_ACTIVE
1099	op=ob->inv;	934	|| map->nodrop
1100	while(op!=NULL) {	935	|| ms ().move_block == MOVE_ALL)
1101	tmp=op->below;	936	{
1102	remove_ob(op);	937	while (inv)
1103	free_object2(op, free_inventory);	938	{
1104	op=tmp;	939	inv->destroy_inv (false);
		940	inv->destroy ();
		941	}
1105	}	942	}
1106	}	943	else
1107	else { /* Put objects in inventory onto this space */	944	{ /* Put objects in inventory onto this space */
1108	op=ob->inv;	945	while (inv)
1109	while(op!=NULL) {	946	{
1110	tmp=op->below;	947	object *op = inv;
1111	remove_ob(op);	948
1112	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||	949	if (op->flag [FLAG_STARTEQUIP]
1113	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))	950	|| op->flag [FLAG_NO_DROP]
1114	free_object(op);	951	|| op->type == RUNE
1115	else {	952	|| op->type == TRAP
1116	op->x=ob->x;	953	|| op->flag [FLAG_IS_A_TEMPLATE]
1117	op->y=ob->y;	954	|| op->flag [FLAG_DESTROY_ON_DEATH])
1118	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */	955	op->destroy (true);
1119	}	956	else
1120	op=tmp;	957	map->insert (op, x, y);
		958	}
1121	}	959	}
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
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	}	960	}
1180		961
1181	/*	962	object *object::create ()
1182	* count_free() returns the number of objects on the list of free objects.	963	{
1183	*/
1184
1185	int count_free(void) {
1186	int i=0;
1187	object *tmp=free_objects;	964	object *op = new object;
1188	while(tmp!=NULL)	965	op->link ();
1189	tmp=tmp->next, i++;
1190	return i;	966	return op;
1191	}	967	}
1192		968
1193	/*	969	void
1194	* count_used() returns the number of objects on the list of used objects.	970	object::do_destroy ()
1195	*/	971	{
		972	if (flag [FLAG_IS_LINKED])
		973	remove_button_link (this);
1196		974
1197	int count_used(void) {	975	if (flag [FLAG_FRIENDLY])
1198	int i=0;	976	remove_friendly_object (this);
1199	object *tmp=objects;
1200	while(tmp!=NULL)
1201	tmp=tmp->next, i++;
1202	return i;
1203	}
1204		977
1205	/*	978	remove ();
1206	* count_active() returns the number of objects on the list of active objects.
1207	*/
1208		979
1209	int count_active(void) {	980	attachable::do_destroy ();
1210	int i=0;
1211	object *tmp=active_objects;
1212	while(tmp!=NULL)
1213	tmp=tmp->active_next, i++;
1214	return i;
1215	}
1216		981
1217	/*	982	deactivate ();
1218	* sub_weight() recursively (outwards) subtracts a number from the	983	unlink ();
1219	* weight of an object (and what is carried by it's environment(s)).
1220	*/
1221		984
1222	void sub_weight (object *op, signed long weight) {	985	flag [FLAG_FREED] = 1;
1223	while (op != NULL) {	986
1224	if (op->type == CONTAINER) {	987	// hack to ensure that freed objects still have a valid map
1225	weight=(signed long)(weight*(100-op->stats.Str)/100);	988	{
		989	static maptile *freed_map; // freed objects are moved here to avoid crashes
		990
		991	if (!freed_map)
		992	{
		993	freed_map = new maptile;
		994
		995	freed_map->path = "<freed objects map>";
		996	freed_map->name = "/internal/freed_objects_map";
		997	freed_map->width = 3;
		998	freed_map->height = 3;
		999	freed_map->nodrop = 1;
		1000
		1001	freed_map->alloc ();
		1002	freed_map->in_memory = MAP_ACTIVE;
1226	}	1003	}
1227	op->carrying-=weight;	1004
1228	op = op->env;	1005	map = freed_map;
		1006	x = 1;
		1007	y = 1;
1229	}	1008	}
1230	}
1231		1009
1232	/* remove_ob(op):	1010	if (more)
		1011	{
		1012	more->destroy ();
		1013	more = 0;
		1014	}
		1015
		1016	head = 0;
		1017
		1018	// clear those pointers that likely might cause circular references
		1019	owner = 0;
		1020	enemy = 0;
		1021	attacked_by = 0;
		1022	current_weapon = 0;
		1023	}
		1024
		1025	void
		1026	object::destroy (bool destroy_inventory)
		1027	{
		1028	if (destroyed ())
		1029	return;
		1030
		1031	if (!is_head () && !head->destroyed ())
		1032	{
		1033	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
		1034	head->destroy (destroy_inventory);
		1035	}
		1036
		1037	destroy_inv (!destroy_inventory);
		1038
		1039	if (is_head ())
		1040	if (sound_destroy)
		1041	play_sound (sound_destroy);
		1042	else if (flag [FLAG_MONSTER])
		1043	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
		1044
		1045	attachable::destroy ();
		1046	}
		1047
		1048	/* op->remove ():
1233	* This function removes the object op from the linked list of objects	1049	* 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	1050	* which it is currently tied to. When this function is done, the
1235	* object will have no environment. If the object previously had an	1051	* object will have no environment. If the object previously had an
1236	* environment, the x and y coordinates will be updated to	1052	* environment, the x and y coordinates will be updated to
1237	* the previous environment.	1053	* the previous environment.
1238	* Beware: This function is called from the editor as well!
1239	*/	1054	*/
1240		1055	void
1241	void remove_ob(object *op) {	1056	object::do_remove ()
		1057	{
1242	object *tmp,*last=NULL;	1058	object *tmp, *last = 0;
1243	object *otmp;	1059	object *otmp;
1244	tag_t tag;
1245	int check_walk_off;
1246	mapstruct *m;
1247	sint16 x,y;
1248
1249		1060
1250	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1061	if (flag [FLAG_REMOVED])
1251	dump_object(op);	1062	return;
1252	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1253		1063
1254	/* Changed it to always dump core in this case. As has been learned	1064	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		1065
1269	SET_FLAG(op, FLAG_REMOVED);	1066	if (object *pl = visible_to ())
		1067	esrv_del_item (pl->contr, count);
1270		1068
		1069	flag [FLAG_REMOVED] = true;
		1070
		1071	if (more)
		1072	more->remove ();
		1073
1271	/*	1074	/*
1272	* In this case, the object to be removed is in someones	1075	* In this case, the object to be removed is in someones
1273	* inventory.	1076	* inventory.
		1077	*/
		1078	if (env)
		1079	{
		1080	adjust_weight (env, -total_weight ());
		1081
		1082	*(above ? &above->below : &env->inv) = below;
		1083
		1084	if (below)
		1085	below->above = above;
		1086
		1087	/* we set up values so that it could be inserted into
		1088	* the map, but we don't actually do that - it is up
		1089	* to the caller to decide what we want to do.
1274	*/	1090	*/
1275	if(op->env!=NULL) {	1091	map = env->map;
1276	if(op->nrof)	1092	x = env->x;
1277	sub_weight(op->env, op->weight*op->nrof);	1093	y = env->y;
1278	else	1094	above = 0;
1279	sub_weight(op->env, op->weight+op->carrying);	1095	below = 0;
		1096	env = 0;
1280		1097
1281	/* NO_FIX_PLAYER is set when a great many changes are being	1098	/* NO_FIX_PLAYER is set when a great many changes are being
1282	* made to players inventory. If set, avoiding the call	1099	* made to players inventory. If set, avoiding the call
1283	* to save cpu time.	1100	* to save cpu time.
1284	*/
1285	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&
1286	!QUERY_FLAG(otmp,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	*/
1301	op->x=op->env->x,op->y=op->env->y;
1302	op->ox=op->x,op->oy=op->y;
1303	op->map=op->env->map;
1304	op->above=NULL,op->below=NULL;
1305	op->env=NULL;
1306	return;
1307	}
1308
1309	/* If we get here, we are removing it from a map */
1310	if (op->map == NULL) return;
1311
1312	x = op->x;
1313	y = op->y;
1314	m = get_map_from_coord(op->map, &x, &y);
1315
1316	if (!m) {
1317	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1318	op->map->path, op->x, op->y);
1319	/* in old days, we used to set x and y to 0 and continue.
1320	* it seems if we get into this case, something is probablye
1321	* screwed up and should be fixed.
1322	*/
1323	abort();
1324	}
1325	if (op->map != m) {
1326	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1327	op->map->path, m->path, op->x, op->y, x, y);
1328	}
1329
1330	/* Re did the following section of code - it looks like it had
1331	* lots of logic for things we no longer care about
1332	*/	1101	*/
		1102	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
		1103	otmp->update_stats ();
		1104	}
		1105	else if (map)
		1106	{
		1107	if (type == PLAYER)
		1108	{
		1109	// leaving a spot always closes any open container on the ground
		1110	if (container && !container->env)
		1111	// this causes spurious floorbox updates, but it ensures
		1112	// that the CLOSE event is being sent.
		1113	close_container ();
1333		1114
		1115	--map->players;
		1116	map->touch ();
		1117	}
		1118
		1119	map->dirty = true;
		1120	mapspace &ms = this->ms ();
		1121
1334	/* link the object above us */	1122	/* link the object above us */
1335	if (op->above)	1123	if (above)
1336	op->above->below=op->below;	1124	above->below = below;
1337	else	1125	else
1338	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */	1126	ms.top = below; /* we were top, set new top */
1339		1127
1340	/* Relink the object below us, if there is one */	1128	/* Relink the object below us, if there is one */
1341	if(op->below) {	1129	if (below)
1342	op->below->above=op->above;	1130	below->above = above;
1343	} else {	1131	else
		1132	{
1344	/* Nothing below, which means we need to relink map object for this space	1133	/* 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	1134	* use translated coordinates in case some oddness with map tiling is
1346	* evident	1135	* evident
1347	*/	1136	*/
1348	if(GET_MAP_OB(m,x,y)!=op) {	1137	if (GET_MAP_OB (map, x, y) != this)
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);	1138	LOG (llevError, "remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom? %s\n", debug_desc ());
1351	dump_object(GET_MAP_OB(m,x,y));
1352	LOG(llevError,"%s\n",errmsg);
1353	}
1354	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1355	}
1356	op->above=NULL;
1357	op->below=NULL;
1358		1139
		1140	ms.bot = above; /* goes on above it. */
		1141	}
		1142
		1143	above = 0;
		1144	below = 0;
		1145
1359	if (op->map->in_memory == MAP_SAVING)	1146	if (map->in_memory == MAP_SAVING)
1360	return;	1147	return;
1361		1148
1362	tag = op->count;	1149	int check_walk_off = !flag [FLAG_NO_APPLY];
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		1150
1369	if(tmp->type==PLAYER && tmp!=op) {	1151	if (object *pl = ms.player ())
		1152	{
		1153	if (pl->container == this)
1370	/* If a container that the player is currently using somehow gets	1154	/* If a container that the player is currently using somehow gets
1371	* removed (most likely destroyed), update the player view	1155	* removed (most likely destroyed), update the player view
1372	* appropriately.	1156	* appropriately.
1373	*/	1157	*/
1374	if (tmp->container==op) {	1158	pl->close_container ();
1375	CLEAR_FLAG(op, FLAG_APPLIED);	1159
1376	tmp->container=NULL;	1160	//TODO: the floorbox prev/next might need updating
1377	}	1161	esrv_del_item (pl->contr, count);
1378	tmp->contr->socket.update_look=1;	1162	}
1379	}	1163
		1164	for (tmp = ms.bot; tmp; tmp = tmp->above)
		1165	{
		1166	/* No point updating the players look faces if he is the object
		1167	* being removed.
		1168	*/
		1169
1380	/* See if player moving off should effect something */	1170	/* See if object moving off should effect something */
1381	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1171	if (check_walk_off
		1172	&& ((move_type & tmp->move_off)
1382	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1173	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1174	{
		1175	move_apply (tmp, this, 0);
1383		1176
1384	move_apply(tmp, op, NULL);	1177	if (destroyed ())
1385	if (was_destroyed (op, tag)) {	1178	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1386	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1179	}
1387	"leaving object\n", tmp->name, tmp->arch->name);
1388	}
1389	}
1390		1180
1391	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1181	last = tmp;
		1182	}
1392		1183
1393	if(tmp->above == tmp)
1394	tmp->above = NULL;
1395	last=tmp;
1396	}
1397	/* last == NULL of there are no objects on this space */	1184	/* last == NULL if there are no objects on this space */
1398	if (last==NULL) {	1185	//TODO: this makes little sense, why only update the topmost object?
1399	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1186	if (!last)
1400	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1187	map->at (x, y).flags_ = 0;
1401	* those out anyways, and if there are any flags set right now, they won't
1402	* be correct anyways.
1403	*/
1404	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1405	update_position(op->map, op->x, op->y);
1406	}
1407	else	1188	else
1408	update_object(last, UP_OBJ_REMOVE);	1189	update_object (last, UP_OBJ_REMOVE);
1409		1190
1410	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1191	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1411	update_all_los(op->map, op->x, op->y);	1192	update_all_los (map, x, y);
1412		1193	}
1413	}	1194	}
1414		1195
1415	/*	1196	/*
1416	* merge_ob(op,top):	1197	* merge_ob(op,top):
1417	*	1198	*
1418	* This function goes through all objects below and including top, and	1199	* This function goes through all objects below and including top, and
1419	* merges op to the first matching object.	1200	* merges op to the first matching object.
1420	* If top is NULL, it is calculated.	1201	* If top is NULL, it is calculated.
1421	* Returns pointer to object if it succeded in the merge, otherwise NULL	1202	* Returns pointer to object if it succeded in the merge, otherwise NULL
1422	*/	1203	*/
1423		1204	object *
1424	object *merge_ob(object *op, object *top) {	1205	merge_ob (object *op, object *top)
		1206	{
1425	if(!op->nrof)	1207	if (!op->nrof)
1426	return 0;	1208	return 0;
1427	if(top==NULL)	1209
		1210	if (!top)
1428	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1211	for (top = op; top && top->above; top = top->above)
		1212	;
		1213
1429	for(;top!=NULL;top=top->below) {	1214	for (; top; top = top->below)
1430	if(top==op)	1215	if (object::can_merge (op, top))
1431	continue;
1432	if (CAN_MERGE(op,top))
1433	{	1216	{
1434	top->nrof+=op->nrof;	1217	top->nrof += op->nrof;
1435	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1218
1436	op->weight = 0; /* Don't want any adjustements now */	1219	if (object *pl = top->visible_to ())
1437	remove_ob(op);	1220	esrv_update_item (UPD_NROF, pl, top);
1438	free_object(op);	1221
		1222	op->weight = 0; // cancel the addition above
		1223	op->carrying = 0; // must be 0 already
		1224
		1225	op->destroy (1);
		1226
1439	return top;	1227	return top;
1440	}	1228	}
1441	}	1229
1442	return NULL;	1230	return 0;
1443	}	1231	}
1444		1232
		1233	void
		1234	object::expand_tail ()
		1235	{
		1236	if (more)
		1237	return;
		1238
		1239	object *prev = this;
		1240
		1241	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1242	{
		1243	object *op = arch_to_object (at);
		1244
		1245	op->name = name;
		1246	op->name_pl = name_pl;
		1247	op->title = title;
		1248
		1249	op->head = this;
		1250	prev->more = op;
		1251
		1252	prev = op;
		1253	}
		1254	}
		1255
1445	/*	1256	/*
1446	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1257	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1447	* job preparing multi-part monsters	1258	* job preparing multi-part monsters.
1448	*/	1259	*/
		1260	object *
1449	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1261	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1450	object* tmp;	1262	{
1451	if (op->head)	1263	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1452	op=op->head;	1264	{
1453	for (tmp=op;tmp;tmp=tmp->more){
1454	tmp->x=x+tmp->arch->clone.x;	1265	tmp->x = x + tmp->arch->x;
1455	tmp->y=y+tmp->arch->clone.y;	1266	tmp->y = y + tmp->arch->y;
1456	}	1267	}
		1268
1457	return insert_ob_in_map (op, m, originator, flag);	1269	return insert_ob_in_map (op, m, originator, flag);
1458	}	1270	}
1459		1271
1460	/*	1272	/*
1461	* insert_ob_in_map (op, map, originator, flag):	1273	* insert_ob_in_map (op, map, originator, flag):
1462	* This function inserts the object in the two-way linked list	1274	* This function inserts the object in the two-way linked list
…		…
1475	* Return value:	1287	* Return value:
1476	* new object if 'op' was merged with other object	1288	* new object if 'op' was merged with other object
1477	* NULL if 'op' was destroyed	1289	* NULL if 'op' was destroyed
1478	* just 'op' otherwise	1290	* just 'op' otherwise
1479	*/	1291	*/
1480		1292	object *
1481	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1293	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1482	{	1294	{
1483	object *tmp, *top, *floor=NULL;	1295	assert (!op->flag [FLAG_FREED]);
1484	sint16 x,y;
1485		1296
1486	if (QUERY_FLAG (op, FLAG_FREED)) {	1297	op->remove ();
1487	LOG (llevError, "Trying to insert freed object!\n");
1488	return NULL;
1489	}
1490	if(m==NULL) {
1491	dump_object(op);
1492	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);
1493	return op;
1494	}
1495	if(out_of_map(m,op->x,op->y)) {
1496	dump_object(op);
1497	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);
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;
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		1298
1515	object *more = op->more;
1516
1517	/* We really need the caller to normalize coordinates - if
1518	* we set the map, that doesn't work if the location is within
1519	* a map and this is straddling an edge. So only if coordinate
1520	* is clear wrong do we normalize it.
1521	*/
1522	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {
1523	/* Debugging information so you can see the last coordinates this object had */
1524	more->ox = more->x;
1525	more->oy = more->y;
1526	more->map = get_map_from_coord(m, &more->x, &more->y);
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	}
1533
1534	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {
1535	if ( ! op->head)
1536	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1537	return NULL;
1538	}
1539	}
1540	CLEAR_FLAG(op,FLAG_REMOVED);
1541
1542	/* Debugging information so you can see the last coordinates this object had */
1543	op->ox=op->x;
1544	op->oy=op->y;
1545
1546	/* Ideally, the caller figures this out. However, it complicates a lot	1299	/* Ideally, the caller figures this out. However, it complicates a lot
1547	* of areas of callers (eg, anything that uses find_free_spot would now	1300	* of areas of callers (eg, anything that uses find_free_spot would now
1548	* need extra work	1301	* need extra work
1549	*/	1302	*/
1550	op->map=get_map_from_coord(m, &op->x, &op->y);	1303	if (!xy_normalise (m, op->x, op->y))
1551	x = op->x;	1304	{
1552	y = op->y;	1305	op->destroy (1);
		1306	return 0;
		1307	}
1553		1308
		1309	if (object *more = op->more)
		1310	if (!insert_ob_in_map (more, m, originator, flag))
		1311	return 0;
		1312
		1313	CLEAR_FLAG (op, FLAG_REMOVED);
		1314
		1315	op->map = m;
		1316	mapspace &ms = op->ms ();
		1317
1554	/* this has to be done after we translate the coordinates.	1318	/* this has to be done after we translate the coordinates.
1555	*/	1319	*/
1556	if(op->nrof && !(flag & INS_NO_MERGE)) {	1320	if (op->nrof && !(flag & INS_NO_MERGE))
1557	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1321	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1558	if (CAN_MERGE(op,tmp)) {	1322	if (object::can_merge (op, tmp))
1559	op->nrof+=tmp->nrof;	1323	{
1560	remove_ob(tmp);	1324	// TODO: we atcually want to update tmp, not op,
1561	free_object(tmp);	1325	// but some caller surely breaks when we return tmp
1562	}	1326	// from here :/
1563	}	1327	op->nrof += tmp->nrof;
		1328	tmp->destroy (1);
		1329	}
1564		1330
1565	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1331	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1566	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1332	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1333
1567	if (!QUERY_FLAG(op, FLAG_ALIVE))	1334	if (!QUERY_FLAG (op, FLAG_ALIVE))
1568	CLEAR_FLAG(op, FLAG_NO_STEAL);	1335	CLEAR_FLAG (op, FLAG_NO_STEAL);
1569		1336
1570	if (flag & INS_BELOW_ORIGINATOR) {	1337	if (flag & INS_BELOW_ORIGINATOR)
		1338	{
1571	if (originator->map != op->map || originator->x != op->x ||	1339	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1572	originator->y != op->y) {	1340	{
1573	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1341	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1574	abort();	1342	abort ();
1575	}	1343	}
		1344
1576	op->above = originator;	1345	op->above = originator;
1577	op->below = originator->below;	1346	op->below = originator->below;
1578	if (op->below) op->below->above = op;	1347
1579	else SET_MAP_OB(op->map, op->x, op->y, op);	1348	if (op->below)
		1349	op->below->above = op;
		1350	else
		1351	ms.bot = op;
		1352
1580	/* since *below* originator, no need to update top */	1353	/* since *below* originator, no need to update top */
1581	originator->below = op;	1354	originator->below = op;
1582	} else {	1355	}
		1356	else
		1357	{
		1358	object *top, *floor = NULL;
		1359
		1360	top = ms.bot;
		1361
1583	/* If there are other objects, then */	1362	/* If there are other objects, then */
1584	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1363	if (top)
1585	object *last=NULL;	1364	{
1586	/*	1365	object *last = 0;
		1366
		1367	/*
1587	* If there are multiple objects on this space, we do some trickier handling.	1368	* If there are multiple objects on this space, we do some trickier handling.
1588	* We've already dealt with merging if appropriate.	1369	* We've already dealt with merging if appropriate.
1589	* Generally, we want to put the new object on top. But if	1370	* Generally, we want to put the new object on top. But if
1590	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1371	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1591	* floor, we want to insert above that and no further.	1372	* floor, we want to insert above that and no further.
1592	* Also, if there are spell objects on this space, we stop processing	1373	* 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	1374	* 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	1375	* 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	1376	* when lots of spells are cast in one area. Currently, it is presumed
1596	* that flying non pickable objects are spell objects.	1377	* that flying non pickable objects are spell objects.
1597	*/	1378	*/
		1379	for (top = ms.bot; top; top = top->above)
		1380	{
		1381	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1382	floor = top;
1598		1383
1599	while (top != NULL) {	1384	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
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	{	1385	{
1606	/* We insert above top, so we want this object below this */	1386	/* We insert above top, so we want this object below this */
1607	top=top->below;	1387	top = top->below;
1608	break;	1388	break;
1609	}	1389	}
1610	last = top;	1390
1611	top = top->above;	1391	last = top;
1612	}	1392	}
		1393
1613	/* Don't want top to be NULL, so set it to the last valid object */	1394	/* Don't want top to be NULL, so set it to the last valid object */
1614	top = last;	1395	top = last;
1615		1396
1616	/* We let update_position deal with figuring out what the space	1397	/* We let update_position deal with figuring out what the space
1617	* looks like instead of lots of conditions here.	1398	* looks like instead of lots of conditions here.
1618	* makes things faster, and effectively the same result.	1399	* makes things faster, and effectively the same result.
1619	*/	1400	*/
1620		1401
1621	/* Have object 'fall below' other objects that block view.	1402	/* Have object 'fall below' other objects that block view.
1622	* Unless those objects are exits, type 66	1403	* Unless those objects are exits.
1623	* If INS_ON_TOP is used, don't do this processing	1404	* If INS_ON_TOP is used, don't do this processing
1624	* Need to find the object that in fact blocks view, otherwise	1405	* Need to find the object that in fact blocks view, otherwise
1625	* stacking is a bit odd.	1406	* stacking is a bit odd.
1626	*/	1407	*/
1627	if (!(flag & INS_ON_TOP) &&	1408	if (!(flag & INS_ON_TOP)
1628	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1409	&& ms.flags () & P_BLOCKSVIEW
1629	(op->face && !op->face->visibility)) {	1410	&& (op->face && !faces [op->face].visibility))
		1411	{
1630	for (last=top; last != floor; last=last->below)	1412	for (last = top; last != floor; last = last->below)
1631	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1413	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1414	break;
		1415
1632	/* Check to see if we found the object that blocks view,	1416	/* Check to see if we found the object that blocks view,
1633	* and make sure we have a below pointer for it so that	1417	* and make sure we have a below pointer for it so that
1634	* we can get inserted below this one, which requires we	1418	* we can get inserted below this one, which requires we
1635	* set top to the object below us.	1419	* set top to the object below us.
1636	*/	1420	*/
1637	if (last && last->below && last != floor) top=last->below;	1421	if (last && last->below && last != floor)
1638	}	1422	top = last->below;
1639	} /* If objects on this space */	1423	}
1640	if (flag & INS_MAP_LOAD)	1424	} /* If objects on this space */
1641	top = GET_MAP_TOP(op->map,op->x,op->y);	1425
1642	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1426	if (flag & INS_ABOVE_FLOOR_ONLY)
		1427	top = floor;
1643		1428
1644	/* Top is the object that our object (op) is going to get inserted above.	1429	/* Top is the object that our object (op) is going to get inserted above.
1645	*/	1430	*/
1646		1431
1647	/* First object on this space */	1432	/* First object on this space */
1648	if (!top) {	1433	if (!top)
1649	op->above = GET_MAP_OB(op->map, op->x, op->y);	1434	{
1650	if (op->above) op->above->below = op;	1435	op->above = ms.bot;
1651	op->below = NULL;	1436
1652	SET_MAP_OB(op->map, op->x, op->y, op);	1437	if (op->above)
1653	} else { /* get inserted into the stack above top */	1438	op->above->below = op;
		1439
		1440	op->below = 0;
		1441	ms.bot = op;
		1442	}
		1443	else
		1444	{ /* get inserted into the stack above top */
1654	op->above = top->above;	1445	op->above = top->above;
1655	if (op->above) op->above->below = op;	1446
		1447	if (op->above)
		1448	op->above->below = op;
		1449
1656	op->below = top;	1450	op->below = top;
1657	top->above = op;	1451	top->above = op;
1658	}	1452	}
1659	if (op->above==NULL)	1453
1660	SET_MAP_TOP(op->map,op->x, op->y, op);	1454	if (!op->above)
		1455	ms.top = op;
1661	} /* else not INS_BELOW_ORIGINATOR */	1456	} /* else not INS_BELOW_ORIGINATOR */
1662		1457
1663	if(op->type==PLAYER)	1458	if (op->type == PLAYER)
		1459	{
1664	op->contr->do_los=1;	1460	op->contr->do_los = 1;
1665		1461	++op->map->players;
1666	/* If we have a floor, we know the player, if any, will be above	1462	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	}	1463	}
1674		1464
		1465	op->map->dirty = true;
		1466
		1467	if (object *pl = ms.player ())
		1468	//TODO: the floorbox prev/next might need updating
		1469	esrv_send_item (pl, op);
		1470
1675	/* If this object glows, it may affect lighting conditions that are	1471	/* If this object glows, it may affect lighting conditions that are
1676	* visible to others on this map. But update_all_los is really	1472	* 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	1473	* 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	1474	* on the map will get recalculated. The players could very well
1679	* be far away from this change and not affected in any way -	1475	* be far away from this change and not affected in any way -
1680	* this should get redone to only look for players within range,	1476	* this should get redone to only look for players within range,
1681	* or just updating the P_NEED_UPDATE for spaces within this area	1477	* or just updating the P_UPTODATE for spaces within this area
1682	* of effect may be sufficient.	1478	* of effect may be sufficient.
1683	*/	1479	*/
1684	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1480	if (op->map->darkness && (op->glow_radius != 0))
1685	update_all_los(op->map, op->x, op->y);	1481	update_all_los (op->map, op->x, op->y);
1686		1482
1687
1688	/* updates flags (blocked, alive, no magic, etc) for this map space */	1483	/* updates flags (blocked, alive, no magic, etc) for this map space */
1689	update_object(op,UP_OBJ_INSERT);	1484	update_object (op, UP_OBJ_INSERT);
1690		1485
		1486	INVOKE_OBJECT (INSERT, op);
1691		1487
1692	/* Don't know if moving this to the end will break anything. However,	1488	/* 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.	1489	* we want to have floorbox_update called before calling this.
1694	*	1490	*
1695	* check_move_on() must be after this because code called from	1491	* check_move_on() must be after this because code called from
1696	* check_move_on() depends on correct map flags (so functions like	1492	* check_move_on() depends on correct map flags (so functions like
1697	* blocked() and wall() work properly), and these flags are updated by	1493	* blocked() and wall() work properly), and these flags are updated by
1698	* update_object().	1494	* update_object().
1699	*/	1495	*/
1700		1496
1701	/* if this is not the head or flag has been passed, don't check walk on status */	1497	/* 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) {	1498	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
		1499	{
1704	if (check_move_on(op, originator))	1500	if (check_move_on (op, originator))
1705	return NULL;	1501	return 0;
1706		1502
1707	/* If we are a multi part object, lets work our way through the check	1503	/* If we are a multi part object, lets work our way through the check
1708	* walk on's.	1504	* walk on's.
1709	*/	1505	*/
1710	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1506	for (object *tmp = op->more; tmp; tmp = tmp->more)
1711	if (check_move_on (tmp, originator))	1507	if (check_move_on (tmp, originator))
1712	return NULL;	1508	return 0;
1713	}	1509	}
		1510
1714	return op;	1511	return op;
1715	}	1512	}
1716		1513
1717	/* this function inserts an object in the map, but if it	1514	/* 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.	1515	* 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.	1516	* op is the object to insert it under: supplies x and the map.
1720	*/	1517	*/
		1518	void
1721	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1519	replace_insert_ob_in_map (const char *arch_string, object *op)
1722	object *tmp;	1520	{
1723	object *tmp1;
1724
1725	/* first search for itself and remove any old instances */	1521	/* first search for itself and remove any old instances */
1726		1522
1727	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1523	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1728	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1524	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1729	remove_ob(tmp);	1525	tmp->destroy (1);
1730	free_object(tmp);
1731	}
1732	}
1733		1526
1734	tmp1=arch_to_object(find_archetype(arch_string));	1527	object *tmp = arch_to_object (archetype::find (arch_string));
1735		1528
1736		1529	tmp->x = op->x;
1737	tmp1->x = op->x; tmp1->y = op->y;	1530	tmp->y = op->y;
		1531
1738	insert_ob_in_map(tmp1,op->map,op,0);	1532	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	}	1533	}
1778		1534
		1535	object *
		1536	object::insert_at (object *where, object *originator, int flags)
		1537	{
		1538	if (where->env)
		1539	return where->env->insert (this);
		1540	else
		1541	return where->map->insert (this, where->x, where->y, originator, flags);
		1542	}
		1543
1779	/*	1544	/*
1780	* decrease_ob_nr(object, number) decreases a specified number from	1545	* decrease(object, number) decreases a specified number from
1781	* the amount of an object. If the amount reaches 0, the object	1546	* the amount of an object. If the amount reaches 0, the object
1782	* is subsequently removed and freed.	1547	* is subsequently removed and freed.
1783	*	1548	*
1784	* Return value: 'op' if something is left, NULL if the amount reached 0	1549	* Return value: 'op' if something is left, NULL if the amount reached 0
1785	*/	1550	*/
1786		1551	bool
1787	object *decrease_ob_nr (object *op, uint32 i)	1552	object::decrease (sint32 nr)
1788	{	1553	{
1789	object *tmp;	1554	if (!nr)
1790	player *pl;	1555	return true;
1791		1556
1792	if (i == 0) /* objects with op->nrof require this check */	1557	nr = min (nr, nrof);
		1558
		1559	nrof -= nr;
		1560
		1561	if (nrof)
		1562	{
		1563	adjust_weight (env, -weight * nr); // carrying == 0
		1564
		1565	if (object *pl = visible_to ())
		1566	esrv_update_item (UPD_NROF, pl, this);
		1567
		1568	return true;
		1569	}
		1570	else
		1571	{
		1572	destroy (1);
		1573	return false;
		1574	}
		1575	}
		1576
		1577	/*
		1578	* split(ob,nr) splits up ob into two parts. The part which
		1579	* is returned contains nr objects, and the remaining parts contains
		1580	* the rest (or is removed and returned if that number is 0).
		1581	* On failure, NULL is returned.
		1582	*/
		1583	object *
		1584	object::split (sint32 nr)
		1585	{
		1586	int have = number_of ();
		1587
		1588	if (have < nr)
		1589	return 0;
		1590	else if (have == nr)
		1591	{
		1592	remove ();
		1593	return this;
		1594	}
		1595	else
		1596	{
		1597	decrease (nr);
		1598
		1599	object *op = object_create_clone (this);
		1600	op->nrof = nr;
1793	return op;	1601	return op;
1794
1795	if (i > op->nrof)
1796	i = op->nrof;
1797
1798	if (QUERY_FLAG (op, FLAG_REMOVED))
1799	{	1602	}
1800	op->nrof -= i;	1603	}
		1604
		1605	object *
		1606	insert_ob_in_ob (object *op, object *where)
		1607	{
		1608	if (!where)
1801	}	1609	{
1802	else if (op->env != NULL)	1610	char *dump = dump_object (op);
1803	{	1611	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1804	/* is this object in the players inventory, or sub container	1612	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;	1613	return op;
1857	} else {	1614	}
1858	free_object (op);	1615
1859	return NULL;	1616	if (where->head_ () != where)
1860	}	1617	{
1861	}	1618	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1862		1619	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	}	1620	}
1876	}
1877		1621
		1622	return where->insert (op);
		1623	}
		1624
1878	/*	1625	/*
1879	* insert_ob_in_ob(op,environment):	1626	* env->insert (op)
1880	* This function inserts the object op in the linked list	1627	* This function inserts the object op in the linked list
1881	* inside the object environment.	1628	* inside the object environment.
1882	*	1629	*
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	1630	* The function returns now pointer to inserted item, and return value can
1889	* be != op, if items are merged. -Tero	1631	* be != op, if items are merged. -Tero
1890	*/	1632	*/
1891		1633	object *
1892	object *insert_ob_in_ob(object *op,object *where) {	1634	object::insert (object *op)
1893	object *tmp, *otmp;	1635	{
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) {	1636	if (op->more)
		1637	{
1911	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1638	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1912	op->name, op->count);
1913	return op;	1639	return op;
1914	}	1640	}
1915	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1641
1916	CLEAR_FLAG(op, FLAG_REMOVED);	1642	op->remove ();
		1643
		1644	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1645
1917	if(op->nrof) {	1646	if (op->nrof)
1918	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1647	for (object *tmp = inv; tmp; tmp = tmp->below)
1919	if ( CAN_MERGE(tmp,op) ) {	1648	if (object::can_merge (tmp, op))
		1649	{
1920	/* return the original object and remove inserted object	1650	/* return the original object and remove inserted object
1921	(client needs the original object) */	1651	(client needs the original object) */
1922	tmp->nrof += op->nrof;	1652	tmp->nrof += op->nrof;
1923	/* Weight handling gets pretty funky. Since we are adding to	1653
1924	* tmp->nrof, we need to increase the weight.	1654	if (object *pl = tmp->visible_to ())
1925	*/	1655	esrv_update_item (UPD_NROF, pl, tmp);
1926	add_weight (where, op->weight*op->nrof);	1656
1927	SET_FLAG(op, FLAG_REMOVED);	1657	adjust_weight (this, op->total_weight ());
1928	free_object(op); /* free the inserted object */	1658
		1659	op->destroy (1);
1929	op = tmp;	1660	op = tmp;
1930	remove_ob (op); /* and fix old object's links */	1661	goto inserted;
1931	CLEAR_FLAG(op, FLAG_REMOVED);
1932	break;
1933	}	1662	}
1934		1663
1935	/* I assume combined objects have no inventory	1664	op->owner = 0; // it's his/hers now. period.
1936	* We add the weight - this object could have just been removed	1665	op->map = 0;
1937	* (if it was possible to merge). calling remove_ob will subtract	1666	op->x = 0;
1938	* the weight, so we need to add it in again, since we actually do	1667	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		1668
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;	1669	op->above = 0;
1954	op->below=NULL;	1670	op->below = inv;
1955	op->x=0,op->y=0;	1671	op->env = this;
1956	op->ox=0,op->oy=0;
1957		1672
		1673	if (inv)
		1674	inv->above = op;
		1675
		1676	inv = op;
		1677
		1678	op->flag [FLAG_REMOVED] = 0;
		1679
		1680	if (object *pl = op->visible_to ())
		1681	esrv_send_item (pl, op);
		1682
		1683	adjust_weight (this, op->total_weight ());
		1684
		1685	inserted:
1958	/* reset the light list and los of the players on the map */	1686	/* reset the light list and los of the players on the map */
1959	if((op->glow_radius!=0)&&where->map)	1687	if (op->glow_radius && map && map->darkness)
1960	{	1688	update_all_los (map, x, y);
1961	#ifdef DEBUG_LIGHTS
1962	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",
1963	op->name);
1964	#endif /* DEBUG_LIGHTS */
1965	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);
1966	}
1967		1689
1968	/* Client has no idea of ordering so lets not bother ordering it here.	1690	// if this is a player's inventory, update stats
1969	* It sure simplifies this function...	1691	if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1970	*/	1692	update_stats ();
1971	if (where->inv==NULL)	1693
1972	where->inv=op;	1694	INVOKE_OBJECT (INSERT, this);
1973	else {	1695
1974	op->below = where->inv;
1975	op->below->above = op;
1976	where->inv = op;
1977	}
1978	return op;	1696	return op;
1979	}	1697	}
1980		1698
1981	/*	1699	/*
1982	* Checks if any objects has a move_type that matches objects	1700	* Checks if any objects has a move_type that matches objects
…		…
1996	*	1714	*
1997	* MSW 2001-07-08: Check all objects on space, not just those below	1715	* 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	1716	* object being inserted. insert_ob_in_map may not put new objects
1999	* on top.	1717	* on top.
2000	*/	1718	*/
2001		1719	int
2002	int check_move_on (object *op, object *originator)	1720	check_move_on (object *op, object *originator)
2003	{	1721	{
2004	object *tmp;	1722	object *tmp;
2005	tag_t tag;
2006	mapstruct *m=op->map;	1723	maptile *m = op->map;
2007	int x=op->x, y=op->y;	1724	int x = op->x, y = op->y;
		1725
2008	MoveType move_on, move_slow, move_block;	1726	MoveType move_on, move_slow, move_block;
2009		1727
2010	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1728	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2011	return 0;
2012
2013	tag = op->count;
2014
2015	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
2016	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
2017	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
2018
2019	/* if nothing on this space will slow op down or be applied,
2020	* no need to do checking below. have to make sure move_type
2021	* is set, as lots of objects don't have it set - we treat that
2022	* as walking.
2023	*/
2024	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
2025	return 0;
2026
2027	/* This is basically inverse logic of that below - basically,
2028	* if the object can avoid the move on or slow move, they do so,
2029	* but can't do it if the alternate movement they are using is
2030	* blocked. Logic on this seems confusing, but does seem correct.
2031	*/
2032	if ((op->move_type & ~move_on & ~move_block) != 0 &&
2033	(op->move_type & ~move_slow & ~move_block) != 0) return 0;
2034
2035	/* The objects have to be checked from top to bottom.
2036	* Hence, we first go to the top:
2037	*/
2038
2039	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&
2040	tmp->above!=NULL; tmp=tmp->above) {
2041	/* Trim the search when we find the first other spell effect
2042	* this helps performance so that if a space has 50 spell objects,
2043	* we don't need to check all of them.
2044	*/
2045	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;
2046	}
2047	for(;tmp!=NULL; tmp=tmp->below) {
2048	if (tmp == op) continue; /* Can't apply yourself */
2049
2050	/* Check to see if one of the movement types should be slowed down.
2051	* Second check makes sure that the movement types not being slowed
2052	* (~slow_move) is not blocked on this space - just because the
2053	* space doesn't slow down swimming (for example), if you can't actually
2054	* swim on that space, can't use it to avoid the penalty.
2055	*/
2056	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {
2057	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2058	((op->move_type & tmp->move_slow) &&
2059	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {
2060
2061	float diff;
2062
2063	diff = tmp->move_slow_penalty*FABS(op->speed);
2064	if (op->type == PLAYER) {
2065	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||
2066	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {
2067	diff /= 4.0;
2068	}
2069	}
2070	op->speed_left -= diff;
2071	}
2072	}
2073
2074	/* Basically same logic as above, except now for actual apply. */
2075	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2076	((op->move_type & tmp->move_on) &&
2077	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {
2078
2079	move_apply(tmp, op, originator);
2080	if (was_destroyed (op, tag))
2081	return 1;
2082
2083	/* what the person/creature stepped onto has moved the object
2084	* someplace new. Don't process any further - if we did,
2085	* have a feeling strange problems would result.
2086	*/
2087	if (op->map != m || op->x != x || op->y != y) return 0;
2088	}
2089	}
2090	return 0;	1729	return 0;
		1730
		1731	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1732	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		1733	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		1734
		1735	/* if nothing on this space will slow op down or be applied,
		1736	* no need to do checking below. have to make sure move_type
		1737	* is set, as lots of objects don't have it set - we treat that
		1738	* as walking.
		1739	*/
		1740	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		1741	return 0;
		1742
		1743	/* This is basically inverse logic of that below - basically,
		1744	* if the object can avoid the move on or slow move, they do so,
		1745	* but can't do it if the alternate movement they are using is
		1746	* blocked. Logic on this seems confusing, but does seem correct.
		1747	*/
		1748	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		1749	return 0;
		1750
		1751	/* The objects have to be checked from top to bottom.
		1752	* Hence, we first go to the top:
		1753	*/
		1754
		1755	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
		1756	{
		1757	/* Trim the search when we find the first other spell effect
		1758	* this helps performance so that if a space has 50 spell objects,
		1759	* we don't need to check all of them.
		1760	*/
		1761	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1762	break;
		1763	}
		1764
		1765	for (; tmp; tmp = tmp->below)
		1766	{
		1767	if (tmp == op)
		1768	continue; /* Can't apply yourself */
		1769
		1770	/* Check to see if one of the movement types should be slowed down.
		1771	* Second check makes sure that the movement types not being slowed
		1772	* (~slow_move) is not blocked on this space - just because the
		1773	* space doesn't slow down swimming (for example), if you can't actually
		1774	* swim on that space, can't use it to avoid the penalty.
		1775	*/
		1776	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1777	{
		1778	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		1779	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1780	{
		1781
		1782	float
		1783	diff = tmp->move_slow_penalty * fabs (op->speed);
		1784
		1785	if (op->type == PLAYER)
		1786	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		1787	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		1788	diff /= 4.0;
		1789
		1790	op->speed_left -= diff;
		1791	}
		1792	}
		1793
		1794	/* Basically same logic as above, except now for actual apply. */
		1795	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		1796	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		1797	{
		1798	move_apply (tmp, op, originator);
		1799
		1800	if (op->destroyed ())
		1801	return 1;
		1802
		1803	/* what the person/creature stepped onto has moved the object
		1804	* someplace new. Don't process any further - if we did,
		1805	* have a feeling strange problems would result.
		1806	*/
		1807	if (op->map != m || op->x != x || op->y != y)
		1808	return 0;
		1809	}
		1810	}
		1811
		1812	return 0;
2091	}	1813	}
2092		1814
2093	/*	1815	/*
2094	* present_arch(arch, map, x, y) searches for any objects with	1816	* present_arch(arch, map, x, y) searches for any objects with
2095	* a matching archetype at the given map and coordinates.	1817	* a matching archetype at the given map and coordinates.
2096	* The first matching object is returned, or NULL if none.	1818	* The first matching object is returned, or NULL if none.
2097	*/	1819	*/
2098		1820	object *
2099	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1821	present_arch (const archetype *at, maptile *m, int x, int y)
2100	object *tmp;	1822	{
2101	if(m==NULL || out_of_map(m,x,y)) {	1823	if (!m || out_of_map (m, x, y))
		1824	{
2102	LOG(llevError,"Present_arch called outside map.\n");	1825	LOG (llevError, "Present_arch called outside map.\n");
2103	return NULL;	1826	return NULL;
2104	}	1827	}
2105	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1828
		1829	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2106	if(tmp->arch == at)	1830	if (tmp->arch == at)
2107	return tmp;	1831	return tmp;
		1832
2108	return NULL;	1833	return NULL;
2109	}	1834	}
2110		1835
2111	/*	1836	/*
2112	* present(type, map, x, y) searches for any objects with	1837	* present(type, map, x, y) searches for any objects with
2113	* a matching type variable at the given map and coordinates.	1838	* a matching type variable at the given map and coordinates.
2114	* The first matching object is returned, or NULL if none.	1839	* The first matching object is returned, or NULL if none.
2115	*/	1840	*/
2116		1841	object *
2117	object *present(unsigned char type,mapstruct *m, int x,int y) {	1842	present (unsigned char type, maptile *m, int x, int y)
2118	object *tmp;	1843	{
2119	if(out_of_map(m,x,y)) {	1844	if (out_of_map (m, x, y))
		1845	{
2120	LOG(llevError,"Present called outside map.\n");	1846	LOG (llevError, "Present called outside map.\n");
2121	return NULL;	1847	return NULL;
2122	}	1848	}
2123	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1849
		1850	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2124	if(tmp->type==type)	1851	if (tmp->type == type)
2125	return tmp;	1852	return tmp;
		1853
2126	return NULL;	1854	return NULL;
2127	}	1855	}
2128		1856
2129	/*	1857	/*
2130	* present_in_ob(type, object) searches for any objects with	1858	* present_in_ob(type, object) searches for any objects with
2131	* a matching type variable in the inventory of the given object.	1859	* a matching type variable in the inventory of the given object.
2132	* The first matching object is returned, or NULL if none.	1860	* The first matching object is returned, or NULL if none.
2133	*/	1861	*/
2134		1862	object *
2135	object *present_in_ob(unsigned char type, const object *op) {	1863	present_in_ob (unsigned char type, const object *op)
2136	object *tmp;	1864	{
2137	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1865	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2138	if(tmp->type==type)	1866	if (tmp->type == type)
2139	return tmp;	1867	return tmp;
		1868
2140	return NULL;	1869	return NULL;
2141	}	1870	}
2142		1871
2143	/*	1872	/*
2144	* present_in_ob (type, str, object) searches for any objects with	1873	* present_in_ob (type, str, object) searches for any objects with
…		…
2152	* str is the string to match against. Note that we match against	1881	* 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	1882	* 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	1883	* spell code can use one object type (force), but change it's name
2155	* to be unique.	1884	* to be unique.
2156	*/	1885	*/
2157		1886	object *
2158	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1887	present_in_ob_by_name (int type, const char *str, const object *op)
2159	object *tmp;	1888	{
2160
2161	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1889	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2162	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1890	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2163	return tmp;	1891	return tmp;
2164	}	1892
2165	return NULL;	1893	return 0;
2166	}	1894	}
2167		1895
2168	/*	1896	/*
2169	* present_arch_in_ob(archetype, object) searches for any objects with	1897	* present_arch_in_ob(archetype, object) searches for any objects with
2170	* a matching archetype in the inventory of the given object.	1898	* a matching archetype in the inventory of the given object.
2171	* The first matching object is returned, or NULL if none.	1899	* The first matching object is returned, or NULL if none.
2172	*/	1900	*/
2173		1901	object *
2174	object *present_arch_in_ob(const archetype *at, const object *op) {	1902	present_arch_in_ob (const archetype *at, const object *op)
2175	object *tmp;	1903	{
2176	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1904	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2177	if( tmp->arch == at)	1905	if (tmp->arch == at)
2178	return tmp;	1906	return tmp;
		1907
2179	return NULL;	1908	return NULL;
2180	}	1909	}
2181		1910
2182	/*	1911	/*
2183	* activate recursively a flag on an object inventory	1912	* activate recursively a flag on an object inventory
2184	*/	1913	*/
		1914	void
2185	void flag_inv(object*op, int flag){	1915	flag_inv (object *op, int flag)
2186	object *tmp;	1916	{
2187	if(op->inv)
2188	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1917	for (object *tmp = op->inv; tmp; tmp = tmp->below)
		1918	{
2189	SET_FLAG(tmp, flag);	1919	SET_FLAG (tmp, flag);
2190	flag_inv(tmp,flag);	1920	flag_inv (tmp, flag);
2191	}	1921	}
		1922	}
		1923
2192	}/*	1924	/*
2193	* desactivate recursively a flag on an object inventory	1925	* deactivate recursively a flag on an object inventory
2194	*/	1926	*/
		1927	void
2195	void unflag_inv(object*op, int flag){	1928	unflag_inv (object *op, int flag)
2196	object *tmp;	1929	{
2197	if(op->inv)
2198	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1930	for (object *tmp = op->inv; tmp; tmp = tmp->below)
		1931	{
2199	CLEAR_FLAG(tmp, flag);	1932	CLEAR_FLAG (tmp, flag);
2200	unflag_inv(tmp,flag);	1933	unflag_inv (tmp, flag);
2201	}	1934	}
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	}	1935	}
2215		1936
2216	/*	1937	/*
2217	* find_free_spot(object, map, x, y, start, stop) will search for	1938	* 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	1939	* a spot at the given map and coordinates which will be able to contain
…		…
2220	* to search (see the freearr_x/y[] definition).	1941	* to search (see the freearr_x/y[] definition).
2221	* It returns a random choice among the alternatives found.	1942	* 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	1943	* 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	1944	* 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)	1945	* 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	1946	* Note: This function does correctly handle tiled maps, but does not
2229	* inform the caller. However, insert_ob_in_map will update as	1947	* inform the caller. However, insert_ob_in_map will update as
2230	* necessary, so the caller shouldn't need to do any special work.	1948	* 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	1949	* 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	1950	* 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	1951	* 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	1952	* the archetype because that isn't correct if the monster has been
2235	* customized, changed states, etc.	1953	* customized, changed states, etc.
2236	*/	1954	*/
2237		1955	int
2238	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	1956	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		1957	{
		1958	int altern[SIZEOFFREE];
2239	int i,index=0, flag;	1959	int index = 0, flag;
2240	static int altern[SIZEOFFREE];
2241		1960
2242	for(i=start;i<stop;i++) {	1961	for (int i = start; i < stop; i++)
2243	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	1962	{
2244	if(!flag)	1963	mapxy pos (m, x, y); pos.move (i);
		1964
		1965	if (!pos.normalise ())
		1966	continue;
		1967
		1968	mapspace &ms = *pos;
		1969
		1970	if (ms.flags () & P_IS_ALIVE)
		1971	continue;
		1972
		1973	/* However, often
		1974	* ob doesn't have any move type (when used to place exits)
		1975	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1976	*/
		1977	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1978	{
2245	altern[index++]=i;	1979	altern [index++] = i;
		1980	continue;
		1981	}
2246		1982
2247	/* Basically, if we find a wall on a space, we cut down the search size.	1983	/* 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.	1984	* 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 -	1985	* 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	1986	* 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	1987	* spaces in all the other directions, this will reduce the search space
2252	* to only the spaces immediately surrounding the target area, and	1988	* to only the spaces immediately surrounding the target area, and
2253	* won't look 2 spaces south of the target space.	1989	* won't look 2 spaces south of the target space.
2254	*/	1990	*/
2255	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	1991	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1992	{
2256	stop=maxfree[i];	1993	stop = maxfree[i];
2257	}	1994	continue;
2258	if(!index) return -1;	1995	}
2259	return altern[RANDOM()%index];
2260	}
2261		1996
		1997	/* Note it is intentional that we check ob - the movement type of the
		1998	* head of the object should correspond for the entire object.
		1999	*/
		2000	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		2001	continue;
		2002
		2003	if (ob->blocked (m, pos.x, pos.y))
		2004	continue;
		2005
		2006	altern [index++] = i;
		2007	}
		2008
		2009	if (!index)
		2010	return -1;
		2011
		2012	return altern [rndm (index)];
		2013	}
		2014
2262	/*	2015	/*
2263	* find_first_free_spot(archetype, mapstruct, x, y) works like	2016	* find_first_free_spot(archetype, maptile, x, y) works like
2264	* find_free_spot(), but it will search max number of squares.	2017	* find_free_spot(), but it will search max number of squares.
2265	* But it will return the first available spot, not a random choice.	2018	* 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.	2019	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2267	*/	2020	*/
2268		2021	int
2269	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2022	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2270	int i;	2023	{
2271	for(i=0;i<SIZEOFFREE;i++) {	2024	for (int i = 0; i < SIZEOFFREE; i++)
2272	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2025	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2273	return i;	2026	return i;
2274	}	2027
2275	return -1;	2028	return -1;
2276	}	2029	}
2277		2030
2278	/*	2031	/*
2279	* The function permute(arr, begin, end) randomly reorders the array	2032	* The function permute(arr, begin, end) randomly reorders the array
2280	* arr[begin..end-1].	2033	* arr[begin..end-1].
		2034	* now uses a fisher-yates shuffle, old permute was broken
2281	*/	2035	*/
		2036	static void
2282	static void permute(int *arr, int begin, int end)	2037	permute (int *arr, int begin, int end)
2283	{	2038	{
2284	int i, j, tmp, len;	2039	arr += begin;
		2040	end -= begin;
2285		2041
2286	len = end-begin;	2042	while (--end)
2287	for(i = begin; i < end; i++)	2043	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	}	2044	}
2296		2045
2297	/* new function to make monster searching more efficient, and effective!	2046	/* new function to make monster searching more efficient, and effective!
2298	* This basically returns a randomized array (in the passed pointer) of	2047	* 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	2048	* 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	2049	* 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	2050	* 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.	2051	* the 3x3 area will be searched, just not in a predictable order.
2303	*/	2052	*/
		2053	void
2304	void get_search_arr(int *search_arr)	2054	get_search_arr (int *search_arr)
2305	{	2055	{
2306	int i;	2056	int i;
2307		2057
2308	for(i = 0; i < SIZEOFFREE; i++)	2058	for (i = 0; i < SIZEOFFREE; i++)
2309	{
2310	search_arr[i] = i;	2059	search_arr[i] = i;
2311	}
2312		2060
2313	permute(search_arr, 1, SIZEOFFREE1+1);	2061	permute (search_arr, 1, SIZEOFFREE1 + 1);
2314	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2062	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2315	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2063	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2316	}	2064	}
2317		2065
2318	/*	2066	/*
2319	* find_dir(map, x, y, exclude) will search some close squares in the	2067	* find_dir(map, x, y, exclude) will search some close squares in the
2320	* given map at the given coordinates for live objects.	2068	* given map at the given coordinates for live objects.
…		…
2325	* Perhaps incorrectly, but I'm making the assumption that exclude	2073	* 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	2074	* 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	2075	* because we have to know what movement the thing looking to move
2328	* there is capable of.	2076	* there is capable of.
2329	*/	2077	*/
2330		2078	int
2331	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2079	find_dir (maptile *m, int x, int y, object *exclude)
		2080	{
2332	int i,max=SIZEOFFREE, mflags;	2081	int i, max = SIZEOFFREE, mflags;
		2082
2333	sint16 nx, ny;	2083	sint16 nx, ny;
2334	object *tmp;	2084	object *tmp;
2335	mapstruct *mp;	2085	maptile *mp;
		2086
2336	MoveType blocked, move_type;	2087	MoveType blocked, move_type;
2337		2088
2338	if (exclude && exclude->head) {	2089	if (exclude && exclude->head_ () != exclude)
		2090	{
2339	exclude = exclude->head;	2091	exclude = exclude->head;
2340	move_type = exclude->move_type;	2092	move_type = exclude->move_type;
2341	} else {	2093	}
		2094	else
		2095	{
2342	/* If we don't have anything, presume it can use all movement types. */	2096	/* If we don't have anything, presume it can use all movement types. */
2343	move_type=MOVE_ALL;	2097	move_type = MOVE_ALL;
		2098	}
		2099
		2100	for (i = 1; i < max; i++)
2344	}	2101	{
2345		2102	mp = m;
2346	for(i=1;i<max;i++) {
2347	mp = m;
2348	nx = x + freearr_x[i];	2103	nx = x + freearr_x[i];
2349	ny = y + freearr_y[i];	2104	ny = y + freearr_y[i];
2350		2105
2351	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2106	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2107
2352	if (mflags & P_OUT_OF_MAP) {	2108	if (mflags & P_OUT_OF_MAP)
2353	max = maxfree[i];	2109	max = maxfree[i];
2354	} else {	2110	else
2355	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2111	{
		2112	mapspace &ms = mp->at (nx, ny);
2356		2113
		2114	blocked = ms.move_block;
		2115
2357	if ((move_type & blocked) == move_type) {	2116	if ((move_type & blocked) == move_type)
2358	max=maxfree[i];	2117	max = maxfree[i];
2359	} else if (mflags & P_IS_ALIVE) {	2118	else if (mflags & P_IS_ALIVE)
2360	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2119	{
2361	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2120	for (tmp = ms.bot; tmp; tmp = tmp->above)
2362	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2121	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2363	break;	2122	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2364	}	2123	break;
2365	}	2124
2366	if(tmp) {	2125	if (tmp)
2367	return freedir[i];	2126	return freedir[i];
2368	}	2127	}
		2128	}
2369	}	2129	}
2370	}	2130
2371	}
2372	return 0;	2131	return 0;
2373	}	2132	}
2374		2133
2375	/*	2134	/*
2376	* distance(object 1, object 2) will return the square of the	2135	* distance(object 1, object 2) will return the square of the
2377	* distance between the two given objects.	2136	* distance between the two given objects.
2378	*/	2137	*/
2379		2138	int
2380	int distance(const object *ob1, const object *ob2) {	2139	distance (const object *ob1, const object *ob2)
2381	int i;	2140	{
2382	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2141	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	}	2142	}
2386		2143
2387	/*	2144	/*
2388	* find_dir_2(delta-x,delta-y) will return a direction in which	2145	* 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	2146	* an object which has subtracted the x and y coordinates of another
2390	* object, needs to travel toward it.	2147	* object, needs to travel toward it.
2391	*/	2148	*/
2392		2149	int
2393	int find_dir_2(int x, int y) {	2150	find_dir_2 (int x, int y)
		2151	{
2394	int q;	2152	int q;
2395		2153
2396	if(y)	2154	if (y)
2397	q=x*100/y;	2155	q = x * 100 / y;
2398	else if (x)	2156	else if (x)
2399	q= -300*x;	2157	q = -300 * x;
2400	else	2158	else
2401	return 0;	2159	return 0;
2402		2160
2403	if(y>0) {	2161	if (y > 0)
		2162	{
2404	if(q < -242)	2163	if (q < -242)
2405	return 3 ;	2164	return 3;
2406	if (q < -41)	2165	if (q < -41)
2407	return 2 ;	2166	return 2;
2408	if (q < 41)	2167	if (q < 41)
2409	return 1 ;	2168	return 1;
2410	if (q < 242)	2169	if (q < 242)
2411	return 8 ;	2170	return 8;
2412	return 7 ;	2171	return 7;
2413	}	2172	}
2414		2173
2415	if (q < -242)	2174	if (q < -242)
2416	return 7 ;	2175	return 7;
2417	if (q < -41)	2176	if (q < -41)
2418	return 6 ;	2177	return 6;
2419	if (q < 41)	2178	if (q < 41)
2420	return 5 ;	2179	return 5;
2421	if (q < 242)	2180	if (q < 242)
2422	return 4 ;	2181	return 4;
2423		2182
2424	return 3 ;	2183	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	}	2184	}
2438		2185
2439	/*	2186	/*
2440	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2187	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2441	* between two directions (which are expected to be absolute (see absdir())	2188	* between two directions (which are expected to be absolute (see absdir())
2442	*/	2189	*/
2443		2190	int
2444	int dirdiff(int dir1, int dir2) {	2191	dirdiff (int dir1, int dir2)
		2192	{
2445	int d;	2193	int d;
		2194
2446	d = abs(dir1 - dir2);	2195	d = abs (dir1 - dir2);
2447	if(d>4)	2196	if (d > 4)
2448	d = 8 - d;	2197	d = 8 - d;
		2198
2449	return d;	2199	return d;
2450	}	2200	}
2451		2201
2452	/* peterm:	2202	/* peterm:
2453	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2203	* 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	2206	* 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.	2207	* 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	2208	* Moved from spell_util.c to object.c with the other related direction
2459	* functions.	2209	* functions.
2460	*/	2210	*/
2461
2462	int reduction_dir[SIZEOFFREE][3] = {	2211	int reduction_dir[SIZEOFFREE][3] = {
2463	{0,0,0}, /* 0 */	2212	{0, 0, 0}, /* 0 */
2464	{0,0,0}, /* 1 */	2213	{0, 0, 0}, /* 1 */
2465	{0,0,0}, /* 2 */	2214	{0, 0, 0}, /* 2 */
2466	{0,0,0}, /* 3 */	2215	{0, 0, 0}, /* 3 */
2467	{0,0,0}, /* 4 */	2216	{0, 0, 0}, /* 4 */
2468	{0,0,0}, /* 5 */	2217	{0, 0, 0}, /* 5 */
2469	{0,0,0}, /* 6 */	2218	{0, 0, 0}, /* 6 */
2470	{0,0,0}, /* 7 */	2219	{0, 0, 0}, /* 7 */
2471	{0,0,0}, /* 8 */	2220	{0, 0, 0}, /* 8 */
2472	{8,1,2}, /* 9 */	2221	{8, 1, 2}, /* 9 */
2473	{1,2,-1}, /* 10 */	2222	{1, 2, -1}, /* 10 */
2474	{2,10,12}, /* 11 */	2223	{2, 10, 12}, /* 11 */
2475	{2,3,-1}, /* 12 */	2224	{2, 3, -1}, /* 12 */
2476	{2,3,4}, /* 13 */	2225	{2, 3, 4}, /* 13 */
2477	{3,4,-1}, /* 14 */	2226	{3, 4, -1}, /* 14 */
2478	{4,14,16}, /* 15 */	2227	{4, 14, 16}, /* 15 */
2479	{5,4,-1}, /* 16 */	2228	{5, 4, -1}, /* 16 */
2480	{4,5,6}, /* 17 */	2229	{4, 5, 6}, /* 17 */
2481	{6,5,-1}, /* 18 */	2230	{6, 5, -1}, /* 18 */
2482	{6,20,18}, /* 19 */	2231	{6, 20, 18}, /* 19 */
2483	{7,6,-1}, /* 20 */	2232	{7, 6, -1}, /* 20 */
2484	{6,7,8}, /* 21 */	2233	{6, 7, 8}, /* 21 */
2485	{7,8,-1}, /* 22 */	2234	{7, 8, -1}, /* 22 */
2486	{8,22,24}, /* 23 */	2235	{8, 22, 24}, /* 23 */
2487	{8,1,-1}, /* 24 */	2236	{8, 1, -1}, /* 24 */
2488	{24,9,10}, /* 25 */	2237	{24, 9, 10}, /* 25 */
2489	{9,10,-1}, /* 26 */	2238	{9, 10, -1}, /* 26 */
2490	{10,11,-1}, /* 27 */	2239	{10, 11, -1}, /* 27 */
2491	{27,11,29}, /* 28 */	2240	{27, 11, 29}, /* 28 */
2492	{11,12,-1}, /* 29 */	2241	{11, 12, -1}, /* 29 */
2493	{12,13,-1}, /* 30 */	2242	{12, 13, -1}, /* 30 */
2494	{12,13,14}, /* 31 */	2243	{12, 13, 14}, /* 31 */
2495	{13,14,-1}, /* 32 */	2244	{13, 14, -1}, /* 32 */
2496	{14,15,-1}, /* 33 */	2245	{14, 15, -1}, /* 33 */
2497	{33,15,35}, /* 34 */	2246	{33, 15, 35}, /* 34 */
2498	{16,15,-1}, /* 35 */	2247	{16, 15, -1}, /* 35 */
2499	{17,16,-1}, /* 36 */	2248	{17, 16, -1}, /* 36 */
2500	{18,17,16}, /* 37 */	2249	{18, 17, 16}, /* 37 */
2501	{18,17,-1}, /* 38 */	2250	{18, 17, -1}, /* 38 */
2502	{18,19,-1}, /* 39 */	2251	{18, 19, -1}, /* 39 */
2503	{41,19,39}, /* 40 */	2252	{41, 19, 39}, /* 40 */
2504	{19,20,-1}, /* 41 */	2253	{19, 20, -1}, /* 41 */
2505	{20,21,-1}, /* 42 */	2254	{20, 21, -1}, /* 42 */
2506	{20,21,22}, /* 43 */	2255	{20, 21, 22}, /* 43 */
2507	{21,22,-1}, /* 44 */	2256	{21, 22, -1}, /* 44 */
2508	{23,22,-1}, /* 45 */	2257	{23, 22, -1}, /* 45 */
2509	{45,47,23}, /* 46 */	2258	{45, 47, 23}, /* 46 */
2510	{23,24,-1}, /* 47 */	2259	{23, 24, -1}, /* 47 */
2511	{24,9,-1}}; /* 48 */	2260	{24, 9, -1}
		2261	}; /* 48 */
2512		2262
2513	/* Recursive routine to step back and see if we can	2263	/* Recursive routine to step back and see if we can
2514	* find a path to that monster that we found. If not,	2264	* find a path to that monster that we found. If not,
2515	* we don't bother going toward it. Returns 1 if we	2265	* we don't bother going toward it. Returns 1 if we
2516	* can see a direct way to get it	2266	* can see a direct way to get it
2517	* Modified to be map tile aware -.MSW	2267	* Modified to be map tile aware -.MSW
2518	*/	2268	*/
2519		2269	int
2520
2521	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2270	can_see_monsterP (maptile *m, int x, int y, int dir)
		2271	{
2522	sint16 dx, dy;	2272	sint16 dx, dy;
2523	int mflags;	2273	int mflags;
2524		2274
		2275	if (dir < 0)
2525	if(dir<0) return 0; /* exit condition: invalid direction */	2276	return 0; /* exit condition: invalid direction */
2526		2277
2527	dx = x + freearr_x[dir];	2278	dx = x + freearr_x[dir];
2528	dy = y + freearr_y[dir];	2279	dy = y + freearr_y[dir];
2529		2280
2530	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2281	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2531		2282
2532	/* This functional arguably was incorrect before - it was	2283	/* This functional arguably was incorrect before - it was
2533	* checking for P_WALL - that was basically seeing if	2284	* checking for P_WALL - that was basically seeing if
2534	* we could move to the monster - this is being more	2285	* we could move to the monster - this is being more
2535	* literal on if we can see it. To know if we can actually	2286	* 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	2287	* move to the monster, we'd need the monster passed in or
2537	* at least its move type.	2288	* at least its move type.
2538	*/	2289	*/
2539	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2290	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2291	return 0;
2540		2292
2541	/* yes, can see. */	2293	/* yes, can see. */
2542	if(dir < 9) return 1;	2294	if (dir < 9)
		2295	return 1;
		2296
2543	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2297	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2544	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2298	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2545	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2299	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2546	}	2300	}
2547		2301
2548
2549
2550	/*	2302	/*
2551	* can_pick(picker, item): finds out if an object is possible to be	2303	* 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	2304	* picked up by the picker. Returnes 1 if it can be
2553	* picked up, otherwise 0.	2305	* picked up, otherwise 0.
2554	*	2306	*
2555	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2307	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2556	* core dumps if they do.	2308	* core dumps if they do.
2557	*	2309	*
2558	* Add a check so we can't pick up invisible objects (0.93.8)	2310	* Add a check so we can't pick up invisible objects (0.93.8)
2559	*/	2311	*/
2560		2312	int
2561	int can_pick(const object *who, const object *item) {	2313	can_pick (const object *who, const object *item)
		2314	{
2562	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2315	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2563	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2316	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2564	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2317	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2565	(who->type==PLAYER||item->weight<who->weight/3));
2566	}	2318	}
2567
2568		2319
2569	/*	2320	/*
2570	* create clone from object to another	2321	* create clone from object to another
2571	*/	2322	*/
		2323	object *
2572	object *object_create_clone (object *asrc) {	2324	object_create_clone (object *asrc)
		2325	{
2573	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2326	object *dst = 0, *tmp, *src, *prev, *item;
2574		2327
2575	if(!asrc) return NULL;	2328	if (!asrc)
2576	src = asrc;	2329	return 0;
2577	if(src->head)	2330
2578	src = src->head;	2331	src = asrc->head_ ();
2579		2332
2580	prev = NULL;	2333	prev = 0;
2581	for(part = src; part; part = part->more) {	2334	for (object *part = src; part; part = part->more)
2582	tmp = get_object();	2335	{
2583	copy_object(part,tmp);	2336	tmp = part->clone ();
2584	tmp->x -= src->x;	2337	tmp->x -= src->x;
2585	tmp->y -= src->y;	2338	tmp->y -= src->y;
		2339
2586	if(!part->head) {	2340	if (!part->head)
		2341	{
2587	dst = tmp;	2342	dst = tmp;
2588	tmp->head = NULL;
2589	} else {
2590	tmp->head = dst;	2343	tmp->head = 0;
2591	}	2344	}
		2345	else
		2346	tmp->head = dst;
		2347
2592	tmp->more = NULL;	2348	tmp->more = 0;
		2349
2593	if(prev)	2350	if (prev)
2594	prev->more = tmp;	2351	prev->more = tmp;
		2352
2595	prev = tmp;	2353	prev = tmp;
2596	}	2354	}
2597	/*** copy inventory ***/	2355
2598	for(item = src->inv; item; item = item->below) {	2356	for (item = src->inv; item; item = item->below)
2599	(void) insert_ob_in_ob(object_create_clone(item),dst);	2357	insert_ob_in_ob (object_create_clone (item), dst);
2600	}
2601		2358
2602	return dst;	2359	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	}	2360	}
2650		2361
2651	/* This returns the first object in who's inventory that	2362	/* This returns the first object in who's inventory that
2652	* has the same type and subtype match.	2363	* has the same type and subtype match.
2653	* returns NULL if no match.	2364	* returns NULL if no match.
2654	*/	2365	*/
		2366	object *
2655	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2367	find_obj_by_type_subtype (const object *who, int type, int subtype)
2656	{	2368	{
2657	object *tmp;
2658
2659	for (tmp=who->inv; tmp; tmp=tmp->below)	2369	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2660	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2370	if (tmp->type == type && tmp->subtype == subtype)
		2371	return tmp;
2661		2372
2662	return NULL;	2373	return 0;
2663	}	2374	}
2664		2375
2665	/* If ob has a field named key, return the link from the list,	2376	/* If ob has a field named key, return the link from the list,
2666	* otherwise return NULL.	2377	* otherwise return NULL.
2667	*	2378	*
2668	* key must be a passed in shared string - otherwise, this won't	2379	* key must be a passed in shared string - otherwise, this won't
2669	* do the desired thing.	2380	* do the desired thing.
2670	*/	2381	*/
		2382	key_value *
2671	key_value * get_ob_key_link(const object * ob, const char * key) {	2383	get_ob_key_link (const object *ob, const char *key)
2672	key_value * link;	2384	{
2673
2674	for (link = ob->key_values; link != NULL; link = link->next) {	2385	for (key_value *link = ob->key_values; link; link = link->next)
2675	if (link->key == key) {	2386	if (link->key == key)
2676	return link;	2387	return link;
2677	}	2388
2678	}	2389	return 0;
2679		2390	}
2680	return NULL;
2681	}
2682		2391
2683	/*	2392	/*
2684	* Returns the value of op has an extra_field for key, or NULL.	2393	* Returns the value of op has an extra_field for key, or NULL.
2685	*	2394	*
2686	* The argument doesn't need to be a shared string.	2395	* The argument doesn't need to be a shared string.
2687	*	2396	*
2688	* The returned string is shared.	2397	* The returned string is shared.
2689	*/	2398	*/
		2399	const char *
2690	const char * get_ob_key_value(const object * op, const char * const key) {	2400	get_ob_key_value (const object *op, const char *const key)
		2401	{
2691	key_value * link;	2402	key_value *link;
2692	const char * canonical_key;	2403	shstr_cmp canonical_key (key);
		2404
		2405	if (!canonical_key)
2693		2406	{
2694	canonical_key = find_string(key);
2695
2696	if (canonical_key == NULL) {
2697	/* 1. There being a field named key on any object	2407	/* 1. There being a field named key on any object
2698	* implies there'd be a shared string to find.	2408	* implies there'd be a shared string to find.
2699	* 2. Since there isn't, no object has this field.	2409	* 2. Since there isn't, no object has this field.
2700	* 3. Therefore, *this* object doesn't have this field.	2410	* 3. Therefore, *this* object doesn't have this field.
2701	*/	2411	*/
2702	return NULL;	2412	return 0;
2703	}	2413	}
2704		2414
2705	/* This is copied from get_ob_key_link() above -	2415	/* This is copied from get_ob_key_link() above -
2706	* only 4 lines, and saves the function call overhead.	2416	* only 4 lines, and saves the function call overhead.
2707	*/	2417	*/
2708	for (link = op->key_values; link != NULL; link = link->next) {	2418	for (link = op->key_values; link; link = link->next)
2709	if (link->key == canonical_key) {	2419	if (link->key == canonical_key)
2710	return link->value;	2420	return link->value;
2711	}
2712	}
2713	return NULL;
2714	}
2715		2421
		2422	return 0;
		2423	}
2716		2424
2717	/*	2425	/*
2718	* Updates the canonical_key in op to value.	2426	* Updates the canonical_key in op to value.
2719	*	2427	*
2720	* canonical_key is a shared string (value doesn't have to be).	2428	* canonical_key is a shared string (value doesn't have to be).
…		…
2722	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2430	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2723	* keys.	2431	* keys.
2724	*	2432	*
2725	* Returns TRUE on success.	2433	* Returns TRUE on success.
2726	*/	2434	*/
		2435	int
2727	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2436	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2437	{
2728	key_value * field = NULL, *last=NULL;	2438	key_value *field = NULL, *last = NULL;
2729		2439
2730	for (field=op->key_values; field != NULL; field=field->next) {	2440	for (field = op->key_values; field != NULL; field = field->next)
2731	if (field->key != canonical_key) {
2732	last = field;
2733	continue;
2734	}
2735		2441	{
2736	if (field->value) FREE_AND_CLEAR_STR(field->value);	2442	if (field->key != canonical_key)
2737	if (value)	2443	{
2738	field->value = add_string(value);	2444	last = field;
2739	else {	2445	continue;
		2446	}
		2447
		2448	if (value)
		2449	field->value = value;
		2450	else
		2451	{
2740	/* Basically, if the archetype has this key set,	2452	/* Basically, if the archetype has this key set,
2741	* we need to store the null value so when we save	2453	* we need to store the null value so when we save
2742	* it, we save the empty value so that when we load,	2454	* it, we save the empty value so that when we load,
2743	* we get this value back again.	2455	* we get this value back again.
2744	*/	2456	*/
2745	if (get_ob_key_link(&op->arch->clone, canonical_key))	2457	if (get_ob_key_link (op->arch, canonical_key))
2746	field->value = NULL;	2458	field->value = 0;
2747	else {	2459	else
2748	/* Delete this link */	2460	{
2749	if (field->key) FREE_AND_CLEAR_STR(field->key);	2461	if (last)
2750	if (field->value) FREE_AND_CLEAR_STR(field->value);	2462	last->next = field->next;
2751	if (last) last->next = field->next;	2463	else
2752	else op->key_values = field->next;	2464	op->key_values = field->next;
2753	free(field);	2465
2754	}	2466	delete field;
2755	}	2467	}
		2468	}
2756	return TRUE;	2469	return TRUE;
2757	}	2470	}
2758	/* IF we get here, key doesn't exist */	2471	/* IF we get here, key doesn't exist */
2759		2472
2760	/* No field, we'll have to add it. */	2473	/* No field, we'll have to add it. */
2761		2474
2762	if (!add_key) {	2475	if (!add_key)
2763	return FALSE;	2476	return FALSE;
2764	}	2477
2765	/* There isn't any good reason to store a null	2478	/* There isn't any good reason to store a null
2766	* value in the key/value list. If the archetype has	2479	* value in the key/value list. If the archetype has
2767	* this key, then we should also have it, so shouldn't	2480	* this key, then we should also have it, so shouldn't
2768	* be here. If user wants to store empty strings,	2481	* be here. If user wants to store empty strings,
2769	* should pass in ""	2482	* should pass in ""
2770	*/	2483	*/
2771	if (value == NULL) return TRUE;	2484	if (value == NULL)
2772
2773	field = (key_value *) malloc(sizeof(key_value));
2774
2775	field->key = add_refcount(canonical_key);
2776	field->value = add_string(value);
2777	/* Usual prepend-addition. */
2778	field->next = op->key_values;
2779	op->key_values = field;
2780
2781	return TRUE;	2485	return TRUE;
		2486
		2487	field = new key_value;
		2488
		2489	field->key = canonical_key;
		2490	field->value = value;
		2491	/* Usual prepend-addition. */
		2492	field->next = op->key_values;
		2493	op->key_values = field;
		2494
		2495	return TRUE;
2782	}	2496	}
2783		2497
2784	/*	2498	/*
2785	* Updates the key in op to value.	2499	* Updates the key in op to value.
2786	*	2500	*
…		…
2788	* and not add new ones.	2502	* and not add new ones.
2789	* In general, should be little reason FALSE is ever passed in for add_key	2503	* In general, should be little reason FALSE is ever passed in for add_key
2790	*	2504	*
2791	* Returns TRUE on success.	2505	* Returns TRUE on success.
2792	*/	2506	*/
		2507	int
2793	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2508	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2794	const char * canonical_key = NULL;	2509	{
2795	int floating_ref = FALSE;	2510	shstr key_ (key);
2796	int ret;	2511
		2512	return set_ob_key_value_s (op, key_, value, add_key);
		2513	}
		2514
		2515	object::depth_iterator::depth_iterator (object *container)
		2516	: iterator_base (container)
		2517	{
		2518	while (item->inv)
		2519	item = item->inv;
		2520	}
		2521
		2522	void
		2523	object::depth_iterator::next ()
		2524	{
		2525	if (item->below)
2797		2526	{
2798	/* HACK This mess is to make sure set_ob_value() passes a shared string	2527	item = item->below;
2799	* to get_ob_key_link(), without leaving a leaked refcount.	2528
2800	*/	2529	while (item->inv)
		2530	item = item->inv;
2801		2531	}
2802	canonical_key = find_string(key);	2532	else
2803	if (canonical_key == NULL) {	2533	item = item->env;
2804	canonical_key = add_string(key);	2534	}
2805	floating_ref = TRUE;	2535
2806	}	2536	const char *
		2537	object::flag_desc (char *desc, int len) const
		2538	{
		2539	char *p = desc;
		2540	bool first = true;
		2541
		2542	*p = 0;
		2543
		2544	for (int i = 0; i < NUM_FLAGS; i++)
2807		2545	{
2808	ret = set_ob_key_value_s(op, canonical_key, value, add_key);	2546	if (len <= 10) // magic constant!
		2547	{
		2548	snprintf (p, len, ",...");
		2549	break;
		2550	}
		2551
		2552	if (flag [i])
		2553	{
		2554	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2555	len -= cnt;
		2556	p += cnt;
		2557	first = false;
		2558	}
2809		2559	}
2810	if (floating_ref) {	2560
2811	free_string(canonical_key);	2561	return desc;
2812	}	2562	}
2813		2563
		2564	// return a suitable string describing an object in enough detail to find it
		2565	const char *
		2566	object::debug_desc (char *info) const
		2567	{
		2568	char flagdesc[512];
		2569	char info2[256 * 4];
		2570	char *p = info;
		2571
		2572	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s,flags:[%s],type:%d}",
		2573	count,
		2574	uuid.c_str (),
		2575	&name,
		2576	title ? "\",title:\"" : "",
		2577	title ? (const char *)title : "",
		2578	flag_desc (flagdesc, 512), type);
		2579
		2580	if (!flag[FLAG_REMOVED] && env)
		2581	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2582
		2583	if (map)
		2584	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2585
		2586	return info;
		2587	}
		2588
		2589	const char *
		2590	object::debug_desc () const
		2591	{
		2592	static char info[3][256 * 4];
		2593	static int info_idx;
		2594
		2595	return debug_desc (info [++info_idx % 3]);
		2596	}
		2597
		2598	struct region *
		2599	object::region () const
		2600	{
		2601	return map ? map->region (x, y)
		2602	: region::default_region ();
		2603	}
		2604
		2605	const materialtype_t *
		2606	object::dominant_material () const
		2607	{
		2608	if (materialtype_t *mt = name_to_material (materialname))
2814	return ret;	2609	return mt;
		2610
		2611	return name_to_material (shstr_unknown);
2815	}	2612	}
		2613
		2614	void
		2615	object::open_container (object *new_container)
		2616	{
		2617	if (container == new_container)
		2618	return;
		2619
		2620	if (object *old_container = container)
		2621	{
		2622	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2623	return;
		2624
		2625	#if 0
		2626	// remove the "Close old_container" object.
		2627	if (object *closer = old_container->inv)
		2628	if (closer->type == CLOSE_CON)
		2629	closer->destroy ();
		2630	#endif
		2631
		2632	old_container->flag [FLAG_APPLIED] = false;
		2633	container = 0;
		2634
		2635	esrv_update_item (UPD_FLAGS, this, old_container);
		2636	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2637	play_sound (sound_find ("chest_close"));
		2638	}
		2639
		2640	if (new_container)
		2641	{
		2642	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2643	return;
		2644
		2645	// TODO: this does not seem to serve any purpose anymore?
		2646	#if 0
		2647	// insert the "Close Container" object.
		2648	if (archetype *closer = new_container->other_arch)
		2649	{
		2650	object *closer = arch_to_object (new_container->other_arch);
		2651	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2652	new_container->insert (closer);
		2653	}
		2654	#endif
		2655
		2656	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2657
		2658	new_container->flag [FLAG_APPLIED] = true;
		2659	container = new_container;
		2660
		2661	esrv_update_item (UPD_FLAGS, this, new_container);
		2662	esrv_send_inventory (this, new_container);
		2663	play_sound (sound_find ("chest_open"));
		2664	}
		2665	}
		2666
		2667	object *
		2668	object::force_find (const shstr name)
		2669	{
		2670	/* cycle through his inventory to look for the MARK we want to
		2671	* place
		2672	*/
		2673	for (object *tmp = inv; tmp; tmp = tmp->below)
		2674	if (tmp->type == FORCE && tmp->slaying == name)
		2675	return splay (tmp);
		2676
		2677	return 0;
		2678	}
		2679
		2680	void
		2681	object::force_add (const shstr name, int duration)
		2682	{
		2683	if (object *force = force_find (name))
		2684	force->destroy ();
		2685
		2686	object *force = get_archetype (FORCE_NAME);
		2687
		2688	force->slaying = name;
		2689	force->stats.food = 1;
		2690	force->speed_left = -1.f;
		2691
		2692	force->set_speed (duration ? 1.f / duration : 0.f);
		2693	force->flag [FLAG_IS_USED_UP] = true;
		2694	force->flag [FLAG_APPLIED] = true;
		2695
		2696	insert (force);
		2697	}
		2698
		2699	void
		2700	object::play_sound (faceidx sound)
		2701	{
		2702	if (!sound)
		2703	return;
		2704
		2705	if (flag [FLAG_REMOVED])
		2706	return;
		2707
		2708	if (env)
		2709	{
		2710	if (object *pl = in_player ())
		2711	pl->contr->play_sound (sound);
		2712	}
		2713	else
		2714	map->play_sound (sound, x, y);
		2715	}
		2716

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