ViewVC Help

View File | Revision Log | Show Annotations | Download File

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

Comparing deliantra/server/common/object.C (file contents):
Revision 1.2 by root, Fri Aug 25 17:11:52 2006 UTC vs.
Revision 1.274 by root, Sun Dec 28 03:58:36 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 1.2 2006/08/25 17:11:52 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
57	void (*object_free_callback)(object *ob);	34	UUID UUID::cur;
		35	static uint64_t seq_next_save;
		36	static const uint64 UUID_GAP = 1<<19;
		37	uint32_t mapspace::smellcount = 10000;
58		38
		39	objectvec objects;
		40	activevec actives;
		41
59	short freearr_x[SIZEOFFREE]=	42	short freearr_x[SIZEOFFREE] = {
60	{0,0,1,1,1,0,-1,-1,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,-2,-2,-2,-1,	43	0,
		44	0, 1, 1, 1, 0, -1, -1, -1,
		45	0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
61	0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3,-3,-3,-3,-3,-2,-1};	46	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
		47	};
62	short freearr_y[SIZEOFFREE]=	48	short freearr_y[SIZEOFFREE] = {
63	{0,-1,-1,0,1,1,1,0,-1,-2,-2,-2,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,	49	0,
		50	-1, -1, 0, 1, 1, 1, 0, -1,
		51	-2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
64	-3,-3,-3,-3,-2,-1,0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3};	52	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
		53	};
65	int maxfree[SIZEOFFREE]=	54	int maxfree[SIZEOFFREE] = {
66	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,	55	0,
		56	9, 10, 13, 14, 17, 18, 21, 22,
		57	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
67	48,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49};	58	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		59	};
68	int freedir[SIZEOFFREE]= {	60	int freedir[SIZEOFFREE] = {
69	0,1,2,3,4,5,6,7,8,1,2,2,2,3,4,4,4,5,6,6,6,7,8,8,8,	61	0,
70	1,2,2,2,2,2,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,8};	62	1, 2, 3, 4, 5, 6, 7, 8,
		63	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
		64	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		65	};
71		66
		67	static void
		68	write_uuid (uval64 skip, bool sync)
		69	{
		70	CALL_BEGIN (2);
		71	CALL_ARG_SV (newSVval64 (skip));
		72	CALL_ARG_SV (boolSV (sync));
		73	CALL_CALL ("cf::write_uuid", G_DISCARD);
		74	CALL_END;
		75	}
		76
		77	static void
		78	read_uuid (void)
		79	{
		80	char filename[MAX_BUF];
		81
		82	sprintf (filename, "%s/uuid", settings.localdir);
		83
		84	seq_next_save = 0;
		85
		86	FILE *fp;
		87
		88	if (!(fp = fopen (filename, "r")))
		89	{
		90	if (errno == ENOENT)
		91	{
		92	LOG (llevInfo, "RESET uid to 1\n");
		93	UUID::cur.seq = 0;
		94	write_uuid (UUID_GAP, true);
		95	return;
		96	}
		97
		98	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		99	_exit (1);
		100	}
		101
		102	UUID::BUF buf;
		103	buf[0] = 0;
		104	fgets (buf, sizeof (buf), fp);
		105
		106	if (!UUID::cur.parse (buf))
		107	{
		108	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
		109	_exit (1);
		110	}
		111
		112	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
		113
		114	write_uuid (UUID_GAP, true);
		115	fclose (fp);
		116	}
		117
		118	UUID
		119	UUID::gen ()
		120	{
		121	UUID uid;
		122
		123	uid.seq = ++cur.seq;
		124
		125	if (expect_false (cur.seq >= seq_next_save))
		126	{
		127	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		128	write_uuid (UUID_GAP, false);
		129	}
		130
		131
		132	return uid;
		133	}
		134
		135	void
		136	UUID::init ()
		137	{
		138	read_uuid ();
		139	}
72		140
73	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	141	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		142	static bool
74	static int compare_ob_value_lists_one(const object * wants, const object * has) {	143	compare_ob_value_lists_one (const object *wants, const object *has)
75	key_value * wants_field;	144	{
76
77	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	145	/* n-squared behaviour (see kv_get), but I'm hoping both
78	* objects with lists are rare, and lists stay short. If not, use a	146	* objects with lists are rare, and lists stay short. If not, use a
79	* different structure or at least keep the lists sorted...	147	* different structure or at least keep the lists sorted...
80	*/	148	*/
81		149
82	/* For each field in wants, */	150	/* For each field in wants, */
83	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	151	for (key_value *kv = wants->key_values; kv; kv = kv->next)
84	key_value * has_field;	152	if (has->kv_get (kv->key) != kv->value)
85		153	return false;
86	/* Look for a field in has with the same key. */	154
87	has_field = get_ob_key_link(has, wants_field->key);
88
89	if (has_field == NULL) {
90	/* No field with that name. */
91	return FALSE;
92	}
93
94	/* Found the matching field. */
95	if (has_field->value != wants_field->value) {
96	/* Values don't match, so this half of the comparison is false. */
97	return FALSE;
98	}
99
100	/* If we get here, we found a match. Now for the next field in wants. */
101	}
102
103	/* If we get here, every field in wants has a matching field in has. */	155	/* If we get here, every field in wants has a matching field in has. */
104	return TRUE;	156	return true;
105	}	157	}
106		158
107	/* Returns TRUE if ob1 has the same key_values as ob2. */	159	/* Returns TRUE if ob1 has the same key_values as ob2. */
		160	static bool
108	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	161	compare_ob_value_lists (const object *ob1, const object *ob2)
		162	{
109	/* However, there may be fields in has which aren't partnered in wants,	163	/* However, there may be fields in has which aren't partnered in wants,
110	* so we need to run the comparison *twice*. :(	164	* so we need to run the comparison *twice*. :(
111	*/	165	*/
112	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	166	return compare_ob_value_lists_one (ob1, ob2)
		167	&& compare_ob_value_lists_one (ob2, ob1);
113	}	168	}
114		169
115	/* Function examines the 2 objects given to it, and returns true if	170	/* Function examines the 2 objects given to it, and returns true if
116	* they can be merged together.	171	* they can be merged together.
117	*	172	*
118	* Note that this function appears a lot longer than the macro it	173	* Note that this function appears a lot longer than the macro it
119	* replaces - this is mostly for clarity - a decent compiler should hopefully	174	* replaces - this is mostly for clarity - a decent compiler should hopefully
120	* reduce this to the same efficiency.	175	* reduce this to the same efficiency.
121	*	176	*
122	* Check nrof variable *before* calling CAN_MERGE()	177	* Check nrof variable *before* calling can_merge()
123	*	178	*
124	* Improvements made with merge: Better checking on potion, and also	179	* Improvements made with merge: Better checking on potion, and also
125	* check weight	180	* check weight
126	*/	181	*/
127		182	bool object::can_merge_slow (object *ob1, object *ob2)
128	int CAN_MERGE(object *ob1, object *ob2) {	183	{
129
130	/* A couple quicksanity checks */	184	/* A couple quicksanity checks */
131	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	185	if (ob1 == ob2
		186	|| ob1->type != ob2->type
		187	|| ob1->speed != ob2->speed
		188	|| ob1->value != ob2->value
		189	|| ob1->name != ob2->name)
		190	return 0;
132		191
133	if (ob1->speed != ob2->speed) return 0;	192	/* Do not merge objects if nrof would overflow, assume nrof
		193	* is always 0 .. 2**31-1 */
		194	if (ob1->nrof > 0x7fffffff - ob2->nrof)
		195	return 0;
		196
		197	/* If the objects have been identified, set the BEEN_APPLIED flag.
		198	* This is to the comparison of the flags below will be OK. We
		199	* just can't ignore the been applied or identified flags, as they
		200	* are not equal - just if it has been identified, the been_applied
		201	* flags lose any meaning.
		202	*/
		203	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
		204	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
		205
		206	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
		207	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
		208
		209	if (ob1->arch->archname != ob2->arch->archname
		210	|| ob1->name != ob2->name
		211	|| ob1->title != ob2->title
		212	|| ob1->msg != ob2->msg
		213	|| ob1->weight != ob2->weight
		214	|| ob1->attacktype != ob2->attacktype
		215	|| ob1->magic != ob2->magic
		216	|| ob1->slaying != ob2->slaying
		217	|| ob1->skill != ob2->skill
		218	|| ob1->value != ob2->value
		219	|| ob1->animation_id != ob2->animation_id
		220	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependent on each other
		221	|| ob1->client_type != ob2->client_type
		222	|| ob1->materialname != ob2->materialname
		223	|| ob1->lore != ob2->lore
		224	|| ob1->subtype != ob2->subtype
		225	|| ob1->move_type != ob2->move_type
		226	|| ob1->move_block != ob2->move_block
		227	|| ob1->move_allow != ob2->move_allow
		228	|| ob1->move_on != ob2->move_on
		229	|| ob1->move_off != ob2->move_off
		230	|| ob1->move_slow != ob2->move_slow
		231	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
		234	return 0;
		235
		236	if ((ob1->flag ^ ob2->flag)
		237	.reset (FLAG_INV_LOCKED)
		238	.reset (FLAG_REMOVED)
		239	.any ())
		240	return 0;
		241
		242	/* This is really a spellbook check - we should in general
		243	* not merge objects with real inventories, as splitting them
		244	* is hard.
		245	*/
		246	if (ob1->inv || ob2->inv)
		247	{
		248	if (!(ob1->inv && ob2->inv))
		249	return 0; /* inventories differ in length */
		250
		251	if (ob1->inv->below || ob2->inv->below)
		252	return 0; /* more than one object in inv */
		253
		254	if (!object::can_merge (ob1->inv, ob2->inv))
		255	return 0; /* inventory objects differ */
		256
		257	/* inventory ok - still need to check rest of this object to see
		258	* if it is valid.
		259	*/
		260	}
		261
		262	/* Don't merge objects that are applied. With the new 'body' code,
		263	* it is possible for most any character to have more than one of
		264	* some items equipped, and we don't want those to merge.
		265	*/
		266	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
		267	return 0;
		268
134	/* Note sure why the following is the case - either the object has to	269	/* Note sure why the following is the case - either the object has to
135	* be animated or have a very low speed. Is this an attempted monster	270	* be animated or have a very low speed. Is this an attempted monster
136	* check?	271	* check?
137	*/	272	*/
138	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)	273	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
139	return 0;
140
141	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
142	* value could not be stored in a sint32 (which unfortunately sometimes is
143	* used to store nrof).
144	*/
145	if (ob1->nrof+ob2->nrof >= 1UL<<31)
146	return 0;
147
148	/* This is really a spellbook check - really, we should
149	* check all objects in the inventory.
150	*/
151	if (ob1->inv || ob2->inv) {
152	/* if one object has inventory but the other doesn't, not equiv */
153	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) return 0;
154
155	/* Now check to see if the two inventory objects could merge */
156	if (!CAN_MERGE(ob1->inv, ob2->inv)) return 0;
157
158	/* inventory ok - still need to check rest of this object to see
159	* if it is valid.
160	*/
161	}
162
163	/* If the objects have been identified, set the BEEN_APPLIED flag.
164	* This is to the comparison of the flags below will be OK. We
165	* just can't ignore the been applied or identified flags, as they
166	* are not equal - just if it has been identified, the been_applied
167	* flags lose any meaning.
168	*/
169	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))
170	SET_FLAG(ob1, FLAG_BEEN_APPLIED);
171
172	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))
173	SET_FLAG(ob2, FLAG_BEEN_APPLIED);
174
175
176	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
177	* being locked in inventory should prevent merging.
178	* 0x4 in flags3 is CLIENT_SENT
179	*/
180	if ((ob1->arch != ob2->arch) ||
181	(ob1->flags[0] != ob2->flags[0]) ||
182	(ob1->flags[1] != ob2->flags[1]) ||
183	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||
184	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
185	(ob1->name != ob2->name) ||
186	(ob1->title != ob2->title) ||
187	(ob1->msg != ob2->msg) ||
188	(ob1->weight != ob2->weight) ||
189	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||
190	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||
191	(ob1->attacktype != ob2->attacktype) ||
192	(ob1->magic != ob2->magic) ||
193	(ob1->slaying != ob2->slaying) ||
194	(ob1->skill != ob2->skill) ||
195	(ob1->value != ob2->value) ||
196	(ob1->animation_id != ob2->animation_id) ||
197	(ob1->client_type != ob2->client_type) ||
198	(ob1->materialname != ob2->materialname) ||
199	(ob1->lore != ob2->lore) ||
200	(ob1->subtype != ob2->subtype) ||
201	(ob1->move_type != ob2->move_type) ||
202	(ob1->move_block != ob2->move_block) ||
203	(ob1->move_allow != ob2->move_allow) ||
204	(ob1->move_on != ob2->move_on) ||
205	(ob1->move_off != ob2->move_off) ||
206	(ob1->move_slow != ob2->move_slow) ||
207	(ob1->move_slow_penalty != ob2->move_slow_penalty)
208	)
209	return 0;	274	return 0;
210		275
211	/* Don't merge objects that are applied. With the new 'body' code,
212	* it is possible for most any character to have more than one of
213	* some items equipped, and we don't want those to merge.
214	*/
215	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))
216	return 0;
217
218	switch (ob1->type) {	276	switch (ob1->type)
		277	{
219	case SCROLL:	278	case SCROLL:
220	if (ob1->level != ob2->level) return 0;	279	if (ob1->level != ob2->level)
		280	return 0;
221	break;	281	break;
222
223	}	282	}
		283
224	if (ob1->key_values != NULL || ob2->key_values != NULL) {	284	if (ob1->key_values || ob2->key_values)
		285	{
225	/* At least one of these has key_values. */	286	/* At least one of these has key_values. */
226	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {	287	if ((!ob1->key_values) != (!ob2->key_values))
227	/* One has fields, but the other one doesn't. */	288	return 0; /* One has fields, but the other one doesn't. */
		289
		290	if (!compare_ob_value_lists (ob1, ob2))
		291	return 0;
		292	}
		293
		294	if (ob1->self || ob2->self)
		295	{
		296	ob1->optimise ();
		297	ob2->optimise ();
		298
		299	if (ob1->self || ob2->self)
		300	{
		301	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		302	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		303
		304	if (k1 != k2)
228	return 0;	305	return 0;
229	} else if (!compare_ob_value_lists(ob1, ob2)) {	306
		307	if (k1 == 0)
		308	return 1;
		309
		310	if (!cfperl_can_merge (ob1, ob2))
230	return 0;	311	return 0;
231	}	312	}
232	}	313	}
233		314
234	/* Everything passes, must be OK. */	315	/* Everything passes, must be OK. */
235	return 1;	316	return 1;
236	}	317	}
237		318
		319	// find player who can see this object
		320	object *
		321	object::visible_to () const
		322	{
		323	if (client_visible () && !flag [FLAG_REMOVED])
		324	{
		325	// see if we are in a container of sorts
		326	if (env)
		327	{
		328	// the player inventory itself is always visible
		329	if (env->is_player ())
		330	return env;
		331
		332	// else a player could have our env open
		333	object *envest = env->outer_env ();
		334
		335	// the player itself is always on a map, so we will find him here
		336	// even if our inv is in a player.
		337	if (envest->is_on_map ())
		338	if (object *pl = envest->ms ().player ())
		339	if (pl->container == env)
		340	return pl;
		341	}
		342	else
		343	{
		344	// maybe there is a player standing on the same mapspace
		345	// this will catch the case where "this" is a player
		346	if (object *pl = ms ().player ())
		347	if ((!pl->container && pl->contr->ns && !pl->contr->ns->update_look)
		348	|| this == pl->container)
		349	return pl;
		350	}
		351	}
		352
		353	return 0;
		354	}
		355
		356	// adjust weight per container type ("of holding")
		357	static sint32
		358	weight_adjust_for (object *op, sint32 weight)
		359	{
		360	return op->type == CONTAINER
		361	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		362	: weight;
		363	}
		364
238	/*	365	/*
		366	* adjust_weight(object, weight) adds the specified weight to an object,
		367	* and also updates how much the environment(s) is/are carrying.
		368	*/
		369	static void
		370	adjust_weight (object *op, sint32 weight)
		371	{
		372	while (op)
		373	{
		374	// adjust by actual difference to account for rounding errors
		375	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		376	weight = weight_adjust_for (op, op->carrying)
		377	- weight_adjust_for (op, op->carrying - weight);
		378
		379	if (!weight)
		380	return;
		381
		382	op->carrying += weight;
		383
		384	if (object *pl = op->visible_to ())
		385	if (pl != op) // player is handled lazily
		386	esrv_update_item (UPD_WEIGHT, pl, op);
		387
		388	op = op->env;
		389	}
		390	}
		391
		392	/*
239	* sum_weight() is a recursive function which calculates the weight	393	* this is a recursive function which calculates the weight
240	* an object is carrying. It goes through in figures out how much	394	* an object is carrying. It goes through op and figures out how much
241	* containers are carrying, and sums it up.	395	* containers are carrying, and sums it up.
242	*/	396	*/
243	signed long sum_weight(object *op) {	397	void
244	signed long sum;	398	object::update_weight ()
245	object *inv;	399	{
246	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	400	sint32 sum = 0;
		401
		402	for (object *op = inv; op; op = op->below)
		403	{
247	if (inv->inv)	404	if (op->inv)
248	sum_weight(inv);	405	op->update_weight ();
249	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	406
		407	sum += op->total_weight ();
250	}	408	}
251	if (op->type == CONTAINER && op->stats.Str)	409
252	sum = (sum * (100 - op->stats.Str))/100;	410	sum = weight_adjust_for (this, sum);
253	if(op->carrying != sum)	411
		412	if (sum != carrying)
		413	{
254	op->carrying = sum;	414	carrying = sum;
255	return sum;
256	}
257		415
		416	if (object *pl = visible_to ())
		417	if (pl != this) // player is handled lazily
		418	esrv_update_item (UPD_WEIGHT, pl, this);
		419	}
		420	}
		421
258	/**	422	/*
259	* Return the outermost environment object for a given object.	423	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
260	*/	424	*/
261		425	char *
262	object *object_get_env_recursive (object *op) {
263	while (op->env != NULL)
264	op = op->env;
265	return op;
266	}
267
268	/*
269	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
270	* a better check. We basically keeping traversing up until we can't
271	* or find a player.
272	*/
273
274	object *is_player_inv (object *op) {
275	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
276	if (op->env==op)
277	op->env = NULL;
278	return op;
279	}
280
281	/*
282	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
283	* Some error messages.
284	* The result of the dump is stored in the static global errmsg array.
285	*/
286
287	void dump_object2(object *op) {
288	char *cp;
289	/* object *tmp;*/
290
291	if(op->arch!=NULL) {
292	strcat(errmsg,"arch ");
293	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
294	strcat(errmsg,"\n");
295	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
296	strcat(errmsg,cp);
297	#if 0
298	/* Don't dump player diffs - they are too long, mostly meaningless, and
299	* will overflow the buffer.
300	* Changed so that we don't dump inventory either. This may
301	* also overflow the buffer.
302	*/
303	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
304	strcat(errmsg,cp);
305	for (tmp=op->inv; tmp; tmp=tmp->below)
306	dump_object2(tmp);
307	#endif
308	strcat(errmsg,"end\n");
309	} else {
310	strcat(errmsg,"Object ");
311	if (op->name==NULL) strcat(errmsg, "(null)");
312	else strcat(errmsg,op->name);
313	strcat(errmsg,"\n");
314	#if 0
315	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
316	strcat(errmsg,cp);
317	for (tmp=op->inv; tmp; tmp=tmp->below)
318	dump_object2(tmp);
319	#endif
320	strcat(errmsg,"end\n");
321	}
322	}
323
324	/*
325	* Dumps an object. Returns output in the static global errmsg array.
326	*/
327
328	void dump_object(object *op) {	426	dump_object (object *op)
329	if(op==NULL) {
330	strcpy(errmsg,"[NULL pointer]");
331	return;
332	}
333	errmsg[0]='\0';
334	dump_object2(op);
335	}
336
337	/* GROS - Dumps an object. Return the result into a string */
338	/* Note that no checking is done for the validity of the target string, so */
339	/* you need to be sure that you allocated enough space for it. */
340	void dump_me(object *op, char *outstr)
341	{	427	{
342	char *cp;	428	if (!op)
		429	return strdup ("[NULLOBJ]");
343		430
344	if(op==NULL)	431	object_freezer freezer;
345	{	432	op->write (freezer);
346	strcpy(outstr,"[NULL pointer]");	433	return freezer.as_string ();
347	return;
348	}
349	outstr[0]='\0';
350
351	if(op->arch!=NULL)
352	{
353	strcat(outstr,"arch ");
354	strcat(outstr,op->arch->name?op->arch->name:"(null)");
355	strcat(outstr,"\n");
356	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
357	strcat(outstr,cp);
358	strcat(outstr,"end\n");
359	}
360	else
361	{
362	strcat(outstr,"Object ");
363	if (op->name==NULL)
364	strcat(outstr, "(null)");
365	else
366	strcat(outstr,op->name);
367	strcat(outstr,"\n");
368	strcat(outstr,"end\n");
369	}
370	}
371
372	/*
373	* This is really verbose...Can be triggered by the P key while in DM mode.
374	* All objects are dumped to stderr (or alternate logfile, if in server-mode)
375	*/
376
377	void dump_all_objects(void) {
378	object *op;
379	for(op=objects;op!=NULL;op=op->next) {
380	dump_object(op);
381	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
382	}
383	}	434	}
384		435
385	/*	436	/*
386	* get_nearest_part(multi-object, object 2) returns the part of the	437	* get_nearest_part(multi-object, object 2) returns the part of the
387	* multi-object 1 which is closest to the second object.	438	* multi-object 1 which is closest to the second object.
388	* If it's not a multi-object, it is returned.	439	* If it's not a multi-object, it is returned.
389	*/	440	*/
390		441	object *
391	object *get_nearest_part(object *op, const object *pl) {	442	get_nearest_part (object *op, const object *pl)
		443	{
392	object *tmp,*closest;	444	object *tmp, *closest;
393	int last_dist,i;	445	int last_dist, i;
		446
394	if(op->more==NULL)	447	if (!op->more)
395	return op;	448	return op;
		449
396	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	450	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		451	tmp;
		452	tmp = tmp->more)
397	if((i=distance(tmp,pl))<last_dist)	453	if ((i = distance (tmp, pl)) < last_dist)
398	closest=tmp,last_dist=i;	454	closest = tmp, last_dist = i;
		455
399	return closest;	456	return closest;
400	}	457	}
401		458
402	/*	459	/*
403	* Returns the object which has the count-variable equal to the argument.	460	* Returns the object which has the count-variable equal to the argument.
		461	* VERRRY slow.
404	*/	462	*/
405		463	object *
406	object *find_object(tag_t i) {	464	find_object (tag_t i)
407	object *op;	465	{
408	for(op=objects;op!=NULL;op=op->next)	466	for_all_objects (op)
409	if(op->count==i)	467	if (op->count == i)
410	break;
411	return op;	468	return op;
		469
		470	return 0;
412	}	471	}
413		472
414	/*	473	/*
415	* Returns the first object which has a name equal to the argument.	474	* Returns the first object which has a name equal to the argument.
416	* Used only by the patch command, but not all that useful.	475	* Used only by the patch command, but not all that useful.
417	* Enables features like "patch <name-of-other-player> food 999"	476	* Enables features like "patch <name-of-other-player> food 999"
418	*/	477	*/
419		478	object *
420	object *find_object_name(const char *str) {	479	find_object_name (const char *str)
421	const char *name=add_string(str);	480	{
422	object *op;	481	shstr_cmp str_ (str);
423	for(op=objects;op!=NULL;op=op->next)	482
424	if(op->name==name)	483	if (str_)
425	break;	484	for_all_objects (op)
426	free_string(name);	485	if (op->name == str_)
		486	return op;
		487
427	return op;	488	return 0;
428	}	489	}
429
430	void free_all_object_data(void) {
431	#ifdef MEMORY_DEBUG
432	object *op, *next;
433
434	for (op=free_objects; op!=NULL; ) {
435	next=op->next;
436	free(op);
437	nrofallocobjects--;
438	nroffreeobjects--;
439	op=next;
440	}
441	#endif
442	LOG(llevDebug,"%d allocated objects, %d free objects, STARMAX=%d\n",
443	nrofallocobjects, nroffreeobjects,STARTMAX);
444	}
445
446	/*
447	* Returns the object which this object marks as being the owner.
448	* A id-scheme is used to avoid pointing to objects which have been
449	* freed and are now reused. If this is detected, the owner is
450	* set to NULL, and NULL is returned.
451	* Changed 2004-02-12 - if the player is setting at the play again
452	* prompt, he is removed, and we don't want to treat him as an owner of
453	* anything, so check removed flag. I don't expect that this should break
454	* anything - once an object is removed, it is basically dead anyways.
455	*/
456
457	object *get_owner(object *op) {
458	if(op->owner==NULL)
459	return NULL;
460
461	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
462	op->owner->count==op->ownercount)
463	return op->owner;
464
465	op->owner=NULL;
466	op->ownercount=0;
467	return NULL;
468	}
469
470	void clear_owner(object *op)
471	{
472	if (!op) return;
473
474	if (op->owner && op->ownercount == op->owner->count)
475	op->owner->refcount--;
476
477	op->owner = NULL;
478	op->ownercount = 0;
479	}
480
481
482		490
483	/*	491	/*
484	* Sets the owner and sets the skill and exp pointers to owner's current	492	* Sets the owner and sets the skill and exp pointers to owner's current
485	* skill and experience objects.	493	* skill and experience objects.
486	*/	494	* ACTUALLY NO! investigate! TODO
487	void set_owner (object *op, object *owner)
488	{
489	if(owner==NULL||op==NULL)
490	return;
491
492	/* next line added to allow objects which own objects */
493	/* Add a check for ownercounts in here, as I got into an endless loop
494	* with the fireball owning a poison cloud which then owned the
495	* fireball. I believe that was caused by one of the objects getting
496	* freed and then another object replacing it. Since the ownercounts
497	* didn't match, this check is valid and I believe that cause is valid.
498	*/
499	while (owner->owner && owner!=owner->owner &&
500	owner->ownercount==owner->owner->count) owner=owner->owner;
501
502	/* IF the owner still has an owner, we did not resolve to a final owner.
503	* so lets not add to that.
504	*/
505	if (owner->owner) return;
506
507	op->owner=owner;
508
509	op->ownercount=owner->count;
510	owner->refcount++;
511
512	}
513
514	/* Set the owner to clone's current owner and set the skill and experience
515	* objects to clone's objects (typically those objects that where the owner's
516	* current skill and experience objects at the time when clone's owner was
517	* set - not the owner's current skill and experience objects).
518	*
519	* Use this function if player created an object (e.g. fire bullet, swarm
520	* spell), and this object creates further objects whose kills should be
521	* accounted for the player's original skill, even if player has changed
522	* skills meanwhile.
523	*/
524	void copy_owner (object *op, object *clone)
525	{
526	object *owner = get_owner (clone);
527	if (owner == NULL) {
528	/* players don't have owners - they own themselves. Update
529	* as appropriate.
530	*/	495	*/
531	if (clone->type == PLAYER) owner=clone;	496	void
532	else return;	497	object::set_owner (object *owner)
		498	{
		499	// allow objects which own objects
		500	if (owner)
		501	while (owner->owner)
		502	owner = owner->owner;
		503
		504	if (flag [FLAG_FREED])
533	}	505	{
534	set_owner(op, owner);	506	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		507	return;
		508	}
535		509
		510	this->owner = owner;
536	}	511	}
537		512
538	/*	513	int
539	* Resets vital variables in an object	514	object::slottype () const
540	*/	515	{
		516	if (type == SKILL)
		517	{
		518	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		519	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		520	}
		521	else
		522	{
		523	if (slot [body_combat].info) return slot_combat;
		524	if (slot [body_range ].info) return slot_ranged;
		525	}
		526
		527	return slot_none;
		528	}
541		529
542	void reset_object(object *op) {	530	bool
		531	object::change_weapon (object *ob)
		532	{
		533	if (current_weapon == ob)
		534	return true;
543		535
544	op->name = NULL;	536	if (chosen_skill)
545	op->name_pl = NULL;	537	chosen_skill->flag [FLAG_APPLIED] = false;
546	op->title = NULL;	538
547	op->race = NULL;	539	current_weapon = ob;
548	op->slaying = NULL;	540	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
549	op->skill = NULL;	541
550	op->msg = NULL;	542	if (chosen_skill)
551	op->materialname = NULL;	543	chosen_skill->flag [FLAG_APPLIED] = true;
552	op->lore = NULL;	544
553	op->current_weapon_script = NULL;	545	update_stats ();
554	clear_object(op);	546
		547	if (ob)
		548	{
		549	// now check wether any body locations became invalid, in which case
		550	// we cannot apply the weapon at the moment.
		551	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		552	if (slot[i].used < 0)
		553	{
		554	current_weapon = chosen_skill = 0;
		555	update_stats ();
		556
		557	new_draw_info_format (NDI_UNIQUE, 0, this,
		558	"You try to balance all your items at once, "
		559	"but the %s is just too much for your body. "
		560	"[You need to unapply some items first.]", &ob->name);
		561	return false;
		562	}
		563
		564	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		565	}
		566	else
		567	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		568
		569	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		570	{
		571	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		572	&name, ob->debug_desc ());
		573	return false;
		574	}
		575
		576	return true;
555	}	577	}
556		578
557	/* Zero the key_values on op, decrementing the shared-string	579	/* Zero the key_values on op, decrementing the shared-string
558	* refcounts and freeing the links.	580	* refcounts and freeing the links.
559	*/	581	*/
		582	static void
560	static void free_key_values(object * op) {	583	free_key_values (object *op)
561	key_value * i;	584	{
562	key_value * next = NULL;	585	for (key_value *i = op->key_values; i; )
563		586	{
564	if (op->key_values == NULL) return;	587	key_value *next = i->next;
		588	delete i;
		589
		590	i = next;
565		591	}
566	for (i = op->key_values; i != NULL; i = next) {	592
567	/* Store next *first*. */
568	next = i->next;
569
570	if (i->key) FREE_AND_CLEAR_STR(i->key);
571	if (i->value) FREE_AND_CLEAR_STR(i->value);
572	i->next = NULL;
573	free(i);
574	}
575
576	op->key_values = NULL;	593	op->key_values = 0;
577	}	594	}
578		595
579
580	/*	596	/*
581	* clear_object() frees everything allocated by an object, and also
582	* clears all variables and flags to default settings.
583	*/
584
585	void clear_object(object *op) {
586
587	if (object_free_callback)
588	object_free_callback (op);
589
590	event *evt;
591	event *evt2;
592
593	/* redo this to be simpler/more efficient. Was also seeing
594	* crashes in the old code. Move this to the top - am
595	* seeing periodic crashes in this code, and would like to have
596	* as much info available as possible (eg, object name).
597	*/
598	for (evt = op->events; evt; evt=evt2) {
599	evt2 = evt->next;
600
601	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
602	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
603	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
604
605	free(evt);
606	}
607	op->events = NULL;
608
609	free_key_values(op);
610
611	/* the memset will clear all these values for us, but we need
612	* to reduce the refcount on them.
613	*/
614	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);
615	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);
616	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);
617	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);
618	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);
619	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);
620	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);
621	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);
622	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);
623
624
625	memset((void*)op, 0, sizeof (object_special));
626	/* Below here, we clear things that are not done by the memset,
627	* or set default values that are not zero.
628	*/
629	/* This is more or less true */
630	SET_FLAG(op, FLAG_REMOVED);
631
632
633	op->contr = NULL;
634	op->below=NULL;
635	op->above=NULL;
636	op->inv=NULL;
637	op->events=NULL;
638	op->container=NULL;
639	op->env=NULL;
640	op->more=NULL;
641	op->head=NULL;
642	op->map=NULL;
643	op->refcount=0;
644	op->active_next = NULL;
645	op->active_prev = NULL;
646	/* What is not cleared is next, prev, and count */
647
648	op->expmul=1.0;
649	op->face = blank_face;
650	op->attacked_by_count = (tag_t) -1;
651	if (settings.casting_time)
652	op->casting_time = -1;
653
654	}
655
656	/*
657	* copy object first frees everything allocated by the second object,	597	* copy_to first frees everything allocated by the dst object,
658	* and then copies the contends of the first object into the second	598	* and then copies the contents of itself into the second
659	* object, allocating what needs to be allocated. Basically, any	599	* object, allocating what needs to be allocated. Basically, any
660	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	600	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
661	* if the first object is freed, the pointers in the new object	601	* if the first object is freed, the pointers in the new object
662	* will point at garbage.	602	* will point at garbage.
663	*/	603	*/
		604	void
		605	object::copy_to (object *dst)
		606	{
		607	dst->remove ();
		608	*(object_copy *)dst = *this;
		609	dst->flag [FLAG_REMOVED] = true;
664		610
665	void copy_object(object *op2, object *op) {
666	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);
667	event *evt, *evt2, *evt_new;
668
669	if (object_free_callback)
670	object_free_callback (op);
671
672	// callback registries and self are empty for copied objects
673	// this ought to change in the future
674
675	/* Decrement the refcounts, but don't bother zeroing the fields;
676	they'll be overwritten by memcpy. */
677	if(op->name!=NULL) free_string(op->name);
678	if(op->name_pl!=NULL) free_string(op->name_pl);
679	if(op->title!=NULL) free_string(op->title);
680	if(op->race!=NULL) free_string(op->race);
681	if(op->slaying!=NULL) free_string(op->slaying);
682	if(op->skill!=NULL) free_string(op->skill);
683	if(op->msg!=NULL) free_string(op->msg);
684	if(op->lore!=NULL) free_string(op->lore);
685	if(op->materialname != NULL) free_string(op->materialname);
686	if(op->custom_name != NULL) free_string(op->custom_name);
687
688	/* Basically, same code as from clear_object() */
689	for (evt = op->events; evt; evt=evt2) {
690	evt2 = evt->next;
691
692	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
693	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
694	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
695
696	free(evt);
697	}
698	op->events = NULL;
699
700	free_key_values(op);
701
702	*(object_special *)op = *(object_special *)op2;
703
704	if(is_freed) SET_FLAG(op,FLAG_FREED);
705	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
706	if(op->name!=NULL) add_refcount(op->name);
707	if(op->name_pl!=NULL) add_refcount(op->name_pl);
708	if(op->title!=NULL) add_refcount(op->title);
709	if(op->race!=NULL) add_refcount(op->race);
710	if(op->slaying!=NULL) add_refcount(op->slaying);
711	if(op->skill!=NULL) add_refcount(op->skill);
712	if(op->lore!=NULL) add_refcount(op->lore);
713	if(op->msg!=NULL) add_refcount(op->msg);
714	if(op->custom_name!=NULL) add_refcount(op->custom_name);
715	if (op->materialname != NULL) add_refcount(op->materialname);
716
717	if((op2->speed<0) && !editor)
718	op->speed_left=op2->speed_left-RANDOM()%200/100.0;
719
720	/* Copy over event information */
721	evt2 = NULL;
722	for (evt = op2->events; evt; evt=evt->next) {
723	evt_new = (event *) malloc(sizeof(event));
724	memcpy(evt_new, evt, sizeof(event));
725	if (evt_new->hook) add_refcount(evt_new->hook);
726	if (evt_new->plugin) add_refcount(evt_new->plugin);
727	if (evt_new->options) add_refcount(evt_new->options);
728	evt_new->next = NULL;
729
730	/* Try to be a little clever here, and store away the
731	* last event we copied, so that its simpler to update the
732	* pointer.
733	*/
734	if (evt2)
735	evt2->next = evt_new;
736	else
737	op->events = evt_new;
738
739	evt2 = evt_new;
740	}
741	/* Copy over key_values, if any. */	611	/* Copy over key_values, if any. */
742	if (op2->key_values != NULL) {	612	if (key_values)
743	key_value * tail = NULL;	613	{
744	key_value * i;	614	key_value *tail = 0;
		615	dst->key_values = 0;
745		616
746	op->key_values = NULL;	617	for (key_value *i = key_values; i; i = i->next)
		618	{
		619	key_value *new_link = new key_value;
747		620
748	for (i = op2->key_values; i != NULL; i = i->next) {
749	key_value * new_link = (key_value *) malloc(sizeof(key_value));
750
751	new_link->next = NULL;	621	new_link->next = 0;
752	new_link->key = add_refcount(i->key);	622	new_link->key = i->key;
753	if (i->value)	623	new_link->value = i->value;
754	new_link->value = add_refcount(i->value);
755	else
756	new_link->value = NULL;
757		624
758	/* Try and be clever here, too. */	625	/* Try and be clever here, too. */
759	if (op->key_values == NULL) {	626	if (!dst->key_values)
760	op->key_values = new_link;	627	{
761	tail = new_link;	628	dst->key_values = new_link;
762	} else {	629	tail = new_link;
763	tail->next = new_link;	630	}
764	tail = new_link;	631	else
		632	{
		633	tail->next = new_link;
		634	tail = new_link;
		635	}
		636	}
765	}	637	}
766	}
767	}
768		638
769	update_ob_speed(op);	639	if (speed < 0)
770	}	640	dst->speed_left -= rndm ();
771		641
772	/*	642	dst->activate ();
773	* expand_objects() allocates more objects for the list of unused objects.
774	* It is called from get_object() if the unused list is empty.
775	*/
776
777	void expand_objects(void) {
778	int i;
779	object *obj;
780	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));
781
782	if(obj==NULL)
783	fatal(OUT_OF_MEMORY);
784	free_objects=obj;
785	obj[0].prev=NULL;
786	obj[0].next= &obj[1],
787	SET_FLAG(&(obj[0]), FLAG_REMOVED);
788	SET_FLAG(&(obj[0]), FLAG_FREED);
789
790	for(i=1;i<OBJ_EXPAND-1;i++) {
791	obj[i].next= &obj[i+1],
792	obj[i].prev= &obj[i-1],
793	SET_FLAG(&(obj[i]), FLAG_REMOVED);
794	SET_FLAG(&(obj[i]), FLAG_FREED);
795	}
796	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
797	obj[OBJ_EXPAND-1].next=NULL,
798	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
799	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
800
801	nrofallocobjects += OBJ_EXPAND;
802	nroffreeobjects += OBJ_EXPAND;
803	}	643	}
804		644
805	/*	645	void
806	* get_object() grabs an object from the list of unused objects, makes	646	object::instantiate ()
807	* sure it is initialised, and returns it.	647	{
808	* If there are no free objects, expand_objects() is called to get more.	648	if (!uuid.seq) // HACK
809	*/	649	uuid = UUID::gen ();
810		650
811	object *get_object(void) {	651	speed_left = -0.1f;
812	object *op;	652	/* copy the body_info to the body_used - this is only really
813		653	* need for monsters, but doesn't hurt to do it for everything.
814	if(free_objects==NULL) {	654	* by doing so, when a monster is created, it has good starting
815	expand_objects();	655	* values for the body_used info, so when items are created
816	}	656	* for it, they can be properly equipped.
817	op=free_objects;
818	#ifdef MEMORY_DEBUG
819	/* The idea is hopefully by doing a realloc, the memory
820	* debugging program will now use the current stack trace to
821	* report leaks.
822	*/	657	*/
823	op = realloc(op, sizeof(object));	658	for (int i = NUM_BODY_LOCATIONS; i--; )
824	SET_FLAG(op, FLAG_REMOVED);	659	slot[i].used = slot[i].info;
825	SET_FLAG(op, FLAG_FREED);
826	#endif
827		660
828	if(!QUERY_FLAG(op,FLAG_FREED)) {	661	attachable::instantiate ();
829	LOG(llevError,"Fatal: Getting busy object.\n");	662	}
830	}	663
831	free_objects=op->next;	664	object *
832	if(free_objects!=NULL)	665	object::clone ()
833	free_objects->prev=NULL;	666	{
834	op->count= ++ob_count;	667	object *neu = create ();
835	op->name=NULL;	668	copy_to (neu);
836	op->name_pl=NULL;	669	neu->map = map; // not copied by copy_to
837	op->title=NULL;
838	op->race=NULL;
839	op->slaying=NULL;
840	op->skill = NULL;
841	op->lore=NULL;
842	op->msg=NULL;
843	op->materialname=NULL;
844	op->next=objects;
845	op->prev=NULL;
846	op->active_next = NULL;
847	op->active_prev = NULL;
848	if(objects!=NULL)
849	objects->prev=op;
850	objects=op;
851	clear_object(op);
852	SET_FLAG(op,FLAG_REMOVED);
853	nroffreeobjects--;
854	return op;	670	return neu;
855	}	671	}
856		672
857	/*	673	/*
858	* If an object with the IS_TURNABLE() flag needs to be turned due	674	* If an object with the IS_TURNABLE() flag needs to be turned due
859	* to the closest player being on the other side, this function can	675	* to the closest player being on the other side, this function can
860	* be called to update the face variable, _and_ how it looks on the map.	676	* be called to update the face variable, _and_ how it looks on the map.
861	*/	677	*/
862		678	void
863	void update_turn_face(object *op) {	679	update_turn_face (object *op)
		680	{
864	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	681	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
865	return;	682	return;
		683
866	SET_ANIMATION(op, op->direction);	684	SET_ANIMATION (op, op->direction);
867	update_object(op,UP_OBJ_FACE);	685	update_object (op, UP_OBJ_FACE);
868	}	686	}
869		687
870	/*	688	/*
871	* Updates the speed of an object. If the speed changes from 0 to another	689	* Updates the speed of an object. If the speed changes from 0 to another
872	* value, or vice versa, then add/remove the object from the active list.	690	* value, or vice versa, then add/remove the object from the active list.
873	* This function needs to be called whenever the speed of an object changes.	691	* This function needs to be called whenever the speed of an object changes.
874	*/	692	*/
875		693	void
876	void update_ob_speed(object *op) {	694	object::set_speed (float speed)
877	extern int arch_init;	695	{
878		696	if (flag [FLAG_FREED] && speed)
879	/* No reason putting the archetypes objects on the speed list,	697	{
880	* since they never really need to be updated.
881	*/
882
883	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {
884	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	698	LOG (llevError, "Object %s is freed but has speed.\n", &name);
885	#ifdef MANY_CORES	699	speed = 0;
886	abort();
887	#else
888	op->speed = 0;
889	#endif
890	}	700	}
891	if (arch_init) {
892	return;
893	}
894	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
895	/* If already on active list, don't do anything */
896	if (op->active_next || op->active_prev || op==active_objects)
897	return;
898		701
899	/* process_events() expects us to insert the object at the beginning	702	this->speed = speed;
900	* of the list. */	703
901	op->active_next = active_objects;	704	if (has_active_speed ())
902	if (op->active_next!=NULL)	705	activate ();
903	op->active_next->active_prev = op;
904	active_objects = op;
905	}
906	else {	706	else
907	/* If not on the active list, nothing needs to be done */	707	deactivate ();
908	if (!op->active_next && !op->active_prev && op!=active_objects)
909	return;
910
911	if (op->active_prev==NULL) {
912	active_objects = op->active_next;
913	if (op->active_next!=NULL)
914	op->active_next->active_prev = NULL;
915	}
916	else {
917	op->active_prev->active_next = op->active_next;
918	if (op->active_next)
919	op->active_next->active_prev = op->active_prev;
920	}
921	op->active_next = NULL;
922	op->active_prev = NULL;
923	}
924	}	708	}
925		709
926	/* This function removes object 'op' from the list of active
927	* objects.
928	* This should only be used for style maps or other such
929	* reference maps where you don't want an object that isn't
930	* in play chewing up cpu time getting processed.
931	* The reverse of this is to call update_ob_speed, which
932	* will do the right thing based on the speed of the object.
933	*/
934	void remove_from_active_list(object *op)
935	{
936	/* If not on the active list, nothing needs to be done */
937	if (!op->active_next && !op->active_prev && op!=active_objects)
938	return;
939
940	if (op->active_prev==NULL) {
941	active_objects = op->active_next;
942	if (op->active_next!=NULL)
943	op->active_next->active_prev = NULL;
944	}
945	else {
946	op->active_prev->active_next = op->active_next;
947	if (op->active_next)
948	op->active_next->active_prev = op->active_prev;
949	}
950	op->active_next = NULL;
951	op->active_prev = NULL;
952	}
953
954	/*	710	/*
955	* update_object() updates the array which represents the map.	711	* update_object() updates the the map.
956	* It takes into account invisible objects (and represent squares covered	712	* It takes into account invisible objects (and represent squares covered
957	* by invisible objects by whatever is below them (unless it's another	713	* by invisible objects by whatever is below them (unless it's another
958	* invisible object, etc...)	714	* invisible object, etc...)
959	* If the object being updated is beneath a player, the look-window	715	* If the object being updated is beneath a player, the look-window
960	* of that player is updated (this might be a suboptimal way of	716	* of that player is updated (this might be a suboptimal way of
961	* updating that window, though, since update_object() is called _often_)	717	* updating that window, though, since update_object() is called _often_)
962	*	718	*
963	* action is a hint of what the caller believes need to be done.	719	* action is a hint of what the caller believes need to be done.
964	* For example, if the only thing that has changed is the face (due to
965	* an animation), we don't need to call update_position until that actually
966	* comes into view of a player. OTOH, many other things, like addition/removal
967	* of walls or living creatures may need us to update the flags now.
968	* current action are:	720	* current action are:
969	* UP_OBJ_INSERT: op was inserted	721	* UP_OBJ_INSERT: op was inserted
970	* UP_OBJ_REMOVE: op was removed	722	* UP_OBJ_REMOVE: op was removed
971	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	723	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
972	* as that is easier than trying to look at what may have changed.	724	* as that is easier than trying to look at what may have changed.
973	* UP_OBJ_FACE: only the objects face has changed.	725	* UP_OBJ_FACE: only the objects face has changed.
974	*/	726	*/
975		727	void
976	void update_object(object *op, int action) {	728	update_object (object *op, int action)
977	int update_now=0, flags;	729	{
978	MoveType move_on, move_off, move_block, move_slow;	730	if (!op)
979		731	{
980	if (op == NULL) {
981	/* this should never happen */	732	/* this should never happen */
982	LOG(llevDebug,"update_object() called for NULL object.\n");	733	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
983	return;	734	return;
984	}
985		735	}
986	if(op->env!=NULL) {	736
		737	if (!op->is_on_map ())
		738	{
987	/* Animation is currently handled by client, so nothing	739	/* Animation is currently handled by client, so nothing
988	* to do in this case.	740	* to do in this case.
989	*/
990	return;
991	}
992
993	/* If the map is saving, don't do anything as everything is
994	* going to get freed anyways.
995	*/	741	*/
996	if (!op->map || op->map->in_memory == MAP_SAVING) return;	742	return;
997		743	}
		744
998	/* make sure the object is within map boundaries */	745	/* make sure the object is within map boundaries */
999	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	746	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
1000	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	747	{
1001	LOG(llevError,"update_object() called for object out of map!\n");	748	LOG (llevError, "update_object() called for object out of map!\n");
1002	#ifdef MANY_CORES	749	#ifdef MANY_CORES
1003	abort();	750	abort ();
1004	#endif	751	#endif
1005	return;	752	return;
1006	}
1007		753	}
1008	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
1009	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
1010	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
1011	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
1012	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
1013	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
1014		754
		755	mapspace &m = op->ms ();
		756
		757	if (!(m.flags_ & P_UPTODATE))
		758	/* nop */;
1015	if (action == UP_OBJ_INSERT) {	759	else if (action == UP_OBJ_INSERT)
		760	{
		761	// this is likely overkill, TODO: revisit (schmorp)
1016	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	762	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
1017	update_now=1;
1018
1019	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	763	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
1020	update_now=1;	764	|| (op->is_player () && !(m.flags_ & P_PLAYER))
1021		765	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		766	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
1022	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	767	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
1023	update_now=1;	768	|| (m.move_on | op->move_on ) != m.move_on
1024		769	|| (m.move_off | op->move_off ) != m.move_off
1025	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	770	|| (m.move_slow | op->move_slow) != m.move_slow
1026	update_now=1;
1027
1028	if ((move_on | op->move_on) != move_on) update_now=1;
1029	if ((move_off | op->move_off) != move_off) update_now=1;
1030	/* This isn't perfect, but I don't expect a lot of objects to	771	/* This isn't perfect, but I don't expect a lot of objects to
1031	* to have move_allow right now.	772	* have move_allow right now.
1032	*/	773	*/
1033	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	774	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
1034	update_now=1;	775	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
1035	if ((move_slow | op->move_slow) != move_slow) update_now=1;	776	m.invalidate ();
1036	}	777	}
1037	/* if the object is being removed, we can't make intelligent	778	/* if the object is being removed, we can't make intelligent
1038	* decisions, because remove_ob can't really pass the object	779	* decisions, because remove_ob can't really pass the object
1039	* that is being removed.	780	* that is being removed.
1040	*/	781	*/
1041	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	782	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1042	update_now=1;	783	m.invalidate ();
1043	} else if (action == UP_OBJ_FACE) {	784	else if (action == UP_OBJ_FACE)
1044	/* Nothing to do for that case */	785	/* Nothing to do for that case */ ;
1045	}
1046	else {	786	else
1047	LOG(llevError,"update_object called with invalid action: %d\n", action);	787	LOG (llevError, "update_object called with invalid action: %d\n", action);
1048	}
1049		788
1050	if (update_now) {
1051	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1052	update_position(op->map, op->x, op->y);
1053	}
1054
1055	if(op->more!=NULL)	789	if (op->more)
1056	update_object(op->more, action);	790	update_object (op->more, action);
1057	}	791	}
1058		792
		793	object::object ()
		794	{
		795	SET_FLAG (this, FLAG_REMOVED);
1059		796
1060	/*	797	expmul = 1.0;
1061	* free_object() frees everything allocated by an object, removes	798	face = blank_face;
1062	* it from the list of used objects, and puts it on the list of	799	}
1063	* free objects. The IS_FREED() flag is set in the object.	800
1064	* The object must have been removed by remove_ob() first for	801	object::~object ()
1065	* this function to succeed.	802	{
		803	unlink ();
		804
		805	free_key_values (this);
		806	}
		807
		808	static int object_count;
		809
		810	void object::link ()
		811	{
		812	assert (!index);//D
		813	uuid = UUID::gen ();
		814	count = ++object_count;
		815
		816	refcnt_inc ();
		817	objects.insert (this);
		818	}
		819
		820	void object::unlink ()
		821	{
		822	if (!index)
		823	return;
		824
		825	objects.erase (this);
		826	refcnt_dec ();
		827	}
		828
		829	void
		830	object::activate ()
		831	{
		832	/* If already on active list, don't do anything */
		833	if (active)
		834	return;
		835
		836	if (has_active_speed () && flag [FLAG_FREED]) LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
		837	if (has_active_speed () && flag [FLAG_DEBUG]) LOG (llevError | logBacktrace, "BUG: tried to activate DEBUG object %s\n", debug_desc ());//D temp
		838
		839	if (has_active_speed ())
		840	actives.insert (this);
		841	}
		842
		843	void
		844	object::activate_recursive ()
		845	{
		846	activate ();
		847
		848	for (object *op = inv; op; op = op->below)
		849	op->activate_recursive ();
		850	}
		851
		852	/* This function removes object 'op' from the list of active
		853	* objects.
		854	* This should only be used for style maps or other such
		855	* reference maps where you don't want an object that isn't
		856	* in play chewing up cpu time getting processed.
		857	* The reverse of this is to call update_ob_speed, which
		858	* will do the right thing based on the speed of the object.
1066	*	859	*/
1067	* If free_inventory is set, free inventory as well. Else drop items in	860	void
1068	* inventory to the ground.	861	object::deactivate ()
1069	*/	862	{
		863	/* If not on the active list, nothing needs to be done */
		864	if (!active)
		865	return;
1070		866
1071	void free_object(object *ob) {	867	actives.erase (this);
1072	free_object2(ob, 0);
1073	}	868	}
1074	void free_object2(object *ob, int free_inventory) {
1075	object *tmp,*op;
1076		869
1077	if (object_free_callback)	870	void
1078	object_free_callback (ob);	871	object::deactivate_recursive ()
		872	{
		873	for (object *op = inv; op; op = op->below)
		874	op->deactivate_recursive ();
1079		875
1080	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	876	deactivate ();
1081	LOG(llevDebug,"Free object called with non removed object\n");	877	}
1082	dump_object(ob);	878
1083	#ifdef MANY_CORES	879	void
1084	abort();	880	object::set_flag_inv (int flag, int value)
1085	#endif	881	{
		882	for (object *op = inv; op; op = op->below)
1086	}	883	{
1087	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	884	op->flag [flag] = value;
1088	LOG(llevMonster,"Warning: tried to free friendly object.\n");	885	op->set_flag_inv (flag, value);
1089	remove_friendly_object(ob);
1090	}	886	}
1091	if(QUERY_FLAG(ob,FLAG_FREED)) {	887	}
1092	dump_object(ob);	888
1093	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);	889	/*
1094	return;	890	* Remove and free all objects in the inventory of the given object.
1095	}	891	* object.c ?
1096	if(ob->more!=NULL) {	892	*/
1097	free_object2(ob->more, free_inventory);	893	void
1098	ob->more=NULL;	894	object::destroy_inv (bool drop_to_ground)
1099	}	895	{
1100	if (ob->inv) {	896	// need to check first, because the checks below might segfault
		897	// as we might be on an invalid mapspace and crossfire code
		898	// is too buggy to ensure that the inventory is empty.
		899	// corollary: if you create arrows etc. with stuff in its inventory,
		900	// cf will crash below with off-map x and y
		901	if (!inv)
		902	return;
		903
1101	/* Only if the space blocks everything do we not process -	904	/* Only if the space blocks everything do we not process -
1102	* if some form of movemnt is allowed, let objects	905	* if some form of movement is allowed, let objects
1103	* drop on that space.	906	* drop on that space.
1104	*/	907	*/
1105	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	908	if (!drop_to_ground
1106	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	909	|| !map
1107	{	910	|| map->in_memory != MAP_ACTIVE
1108	op=ob->inv;	911	|| map->no_drop
1109	while(op!=NULL) {	912	|| ms ().move_block == MOVE_ALL)
1110	tmp=op->below;	913	{
1111	remove_ob(op);	914	while (inv)
1112	free_object2(op, free_inventory);	915	inv->destroy ();
1113	op=tmp;
1114	}	916	}
1115	}	917	else
1116	else { /* Put objects in inventory onto this space */	918	{ /* Put objects in inventory onto this space */
1117	op=ob->inv;	919	while (inv)
1118	while(op!=NULL) {	920	{
1119	tmp=op->below;	921	object *op = inv;
1120	remove_ob(op);	922
1121	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||	923	if (op->flag [FLAG_STARTEQUIP]
1122	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))	924	|| op->flag [FLAG_NO_DROP]
1123	free_object(op);	925	|| op->type == RUNE
1124	else {	926	|| op->type == TRAP
1125	op->x=ob->x;	927	|| op->flag [FLAG_IS_A_TEMPLATE]
1126	op->y=ob->y;	928	|| op->flag [FLAG_DESTROY_ON_DEATH])
1127	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */	929	op->destroy ();
1128	}	930	else
1129	op=tmp;	931	map->insert (op, x, y);
		932	}
1130	}	933	}
1131	}
1132	}
1133	/* Remove object from the active list */
1134	ob->speed = 0;
1135	update_ob_speed(ob);
1136
1137	SET_FLAG(ob, FLAG_FREED);
1138	ob->count = 0;
1139
1140	/* Remove this object from the list of used objects */
1141	if(ob->prev==NULL) {
1142	objects=ob->next;
1143	if(objects!=NULL)
1144	objects->prev=NULL;
1145	}
1146	else {
1147	ob->prev->next=ob->next;
1148	if(ob->next!=NULL)
1149	ob->next->prev=ob->prev;
1150	}
1151
1152	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1153	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1154	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1155	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1156	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1157	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1158	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1159	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1160	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1161
1162
1163	/* Why aren't events freed? */
1164	free_key_values(ob);
1165
1166	#if 0 /* MEMORY_DEBUG*/
1167	/* This is a nice idea. Unfortunately, a lot of the code in crossfire
1168	* presumes the freed_object will stick around for at least a little
1169	* bit
1170	*/
1171	/* this is necessary so that memory debugging programs will
1172	* be able to accurately report source of malloc. If we recycle
1173	* objects, then some other area may be doing the get_object
1174	* and not freeing it, but the original one that malloc'd the
1175	* object will get the blame.
1176	*/
1177	free(ob);
1178	#else
1179
1180	/* Now link it with the free_objects list: */
1181	ob->prev=NULL;
1182	ob->next=free_objects;
1183	if(free_objects!=NULL)
1184	free_objects->prev=ob;
1185	free_objects=ob;
1186	nroffreeobjects++;
1187	#endif
1188	}	934	}
1189		935
1190	/*	936	object *object::create ()
1191	* count_free() returns the number of objects on the list of free objects.	937	{
1192	*/
1193
1194	int count_free(void) {
1195	int i=0;
1196	object *tmp=free_objects;	938	object *op = new object;
1197	while(tmp!=NULL)	939	op->link ();
1198	tmp=tmp->next, i++;
1199	return i;	940	return op;
1200	}	941	}
1201		942
1202	/*	943	static struct freed_map : maptile
1203	* count_used() returns the number of objects on the list of used objects.	944	{
1204	*/	945	freed_map ()
		946	{
		947	path = "<freed objects map>";
		948	name = "/internal/freed_objects_map";
		949	width = 3;
		950	height = 3;
		951	no_drop = 1;
		952	no_reset = 1;
1205		953
1206	int count_used(void) {	954	alloc ();
1207	int i=0;	955	in_memory = MAP_ACTIVE;
1208	object *tmp=objects;
1209	while(tmp!=NULL)
1210	tmp=tmp->next, i++;
1211	return i;
1212	}
1213
1214	/*
1215	* count_active() returns the number of objects on the list of active objects.
1216	*/
1217
1218	int count_active(void) {
1219	int i=0;
1220	object *tmp=active_objects;
1221	while(tmp!=NULL)
1222	tmp=tmp->active_next, i++;
1223	return i;
1224	}
1225
1226	/*
1227	* sub_weight() recursively (outwards) subtracts a number from the
1228	* weight of an object (and what is carried by it's environment(s)).
1229	*/
1230
1231	void sub_weight (object *op, signed long weight) {
1232	while (op != NULL) {
1233	if (op->type == CONTAINER) {
1234	weight=(signed long)(weight*(100-op->stats.Str)/100);
1235	}
1236	op->carrying-=weight;
1237	op = op->env;
1238	}	956	}
1239	}
1240		957
1241	/* remove_ob(op):	958	~freed_map ()
		959	{
		960	destroy ();
		961	}
		962	} freed_map; // freed objects are moved here to avoid crashes
		963
		964	void
		965	object::do_destroy ()
		966	{
		967	if (flag [FLAG_IS_LINKED])
		968	remove_button_link (this);
		969
		970	if (flag [FLAG_FRIENDLY])
		971	remove_friendly_object (this);
		972
		973	remove ();
		974
		975	attachable::do_destroy ();
		976
		977	deactivate ();
		978	unlink ();
		979
		980	flag [FLAG_FREED] = 1;
		981
		982	// hack to ensure that freed objects still have a valid map
		983	map = &freed_map;
		984	x = 1;
		985	y = 1;
		986
		987	if (more)
		988	{
		989	more->destroy ();
		990	more = 0;
		991	}
		992
		993	head = 0;
		994
		995	// clear those pointers that likely might cause circular references
		996	owner = 0;
		997	enemy = 0;
		998	attacked_by = 0;
		999	current_weapon = 0;
		1000	}
		1001
		1002	void
		1003	object::destroy ()
		1004	{
		1005	if (destroyed ())
		1006	return;
		1007
		1008	if (!is_head () && !head->destroyed ())
		1009	{
		1010	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
		1011	head->destroy ();
		1012	return;
		1013	}
		1014
		1015	destroy_inv (false);
		1016
		1017	if (is_head ())
		1018	if (sound_destroy)
		1019	play_sound (sound_destroy);
		1020	else if (flag [FLAG_MONSTER])
		1021	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
		1022
		1023	attachable::destroy ();
		1024	}
		1025
		1026	/* op->remove ():
1242	* This function removes the object op from the linked list of objects	1027	* This function removes the object op from the linked list of objects
1243	* which it is currently tied to. When this function is done, the	1028	* which it is currently tied to. When this function is done, the
1244	* object will have no environment. If the object previously had an	1029	* object will have no environment. If the object previously had an
1245	* environment, the x and y coordinates will be updated to	1030	* environment, the x and y coordinates will be updated to
1246	* the previous environment.	1031	* the previous environment.
1247	* Beware: This function is called from the editor as well!
1248	*/	1032	*/
1249		1033	void
1250	void remove_ob(object *op) {	1034	object::do_remove ()
		1035	{
1251	object *tmp,*last=NULL;	1036	object *tmp, *last = 0;
1252	object *otmp;	1037	object *otmp;
1253	tag_t tag;
1254	int check_walk_off;
1255	mapstruct *m;
1256	sint16 x,y;
1257
1258		1038
1259	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1039	if (flag [FLAG_REMOVED])
1260	dump_object(op);	1040	return;
1261	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1262		1041
1263	/* Changed it to always dump core in this case. As has been learned	1042	INVOKE_OBJECT (REMOVE, this);
1264	* in the past, trying to recover from errors almost always
1265	* make things worse, and this is a real error here - something
1266	* that should not happen.
1267	* Yes, if this was a mission critical app, trying to do something
1268	* to recover may make sense, but that is because failure of the app
1269	* may have other disastrous problems. Cf runs out of a script
1270	* so is easily enough restarted without any real problems.
1271	* MSW 2001-07-01
1272	*/
1273	abort();
1274	}
1275	if(op->more!=NULL)
1276	remove_ob(op->more);
1277		1043
1278	SET_FLAG(op, FLAG_REMOVED);	1044	flag [FLAG_REMOVED] = true;
1279		1045
		1046	if (more)
		1047	more->remove ();
		1048
1280	/*	1049	/*
1281	* In this case, the object to be removed is in someones	1050	* In this case, the object to be removed is in someones
1282	* inventory.	1051	* inventory.
		1052	*/
		1053	if (env)
		1054	{
		1055	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
		1056	if (object *pl = visible_to ())
		1057	esrv_del_item (pl->contr, count);
		1058	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1059
		1060	adjust_weight (env, -total_weight ());
		1061
		1062	object *pl = in_player ();
		1063
		1064	/* we set up values so that it could be inserted into
		1065	* the map, but we don't actually do that - it is up
		1066	* to the caller to decide what we want to do.
1283	*/	1067	*/
1284	if(op->env!=NULL) {	1068	map = env->map;
1285	if(op->nrof)	1069	x = env->x;
1286	sub_weight(op->env, op->weight*op->nrof);	1070	y = env->y;
1287	else
1288	sub_weight(op->env, op->weight+op->carrying);
1289		1071
		1072	// make sure cmov optimisation is applicable
		1073	*(above ? &above->below : &env->inv) = below;
		1074	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1075
		1076	above = 0;
		1077	below = 0;
		1078	env = 0;
		1079
1290	/* NO_FIX_PLAYER is set when a great many changes are being	1080	/* NO_FIX_PLAYER is set when a great many changes are being
1291	* made to players inventory. If set, avoiding the call	1081	* made to players inventory. If set, avoiding the call
1292	* to save cpu time.	1082	* to save cpu time.
1293	*/
1294	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&
1295	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))
1296	fix_player(otmp);
1297
1298	if(op->above!=NULL)
1299	op->above->below=op->below;
1300	else
1301	op->env->inv=op->below;
1302
1303	if(op->below!=NULL)
1304	op->below->above=op->above;
1305
1306	/* we set up values so that it could be inserted into
1307	* the map, but we don't actually do that - it is up
1308	* to the caller to decide what we want to do.
1309	*/
1310	op->x=op->env->x,op->y=op->env->y;
1311	op->ox=op->x,op->oy=op->y;
1312	op->map=op->env->map;
1313	op->above=NULL,op->below=NULL;
1314	op->env=NULL;
1315	return;
1316	}
1317
1318	/* If we get here, we are removing it from a map */
1319	if (op->map == NULL) return;
1320
1321	x = op->x;
1322	y = op->y;
1323	m = get_map_from_coord(op->map, &x, &y);
1324
1325	if (!m) {
1326	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1327	op->map->path, op->x, op->y);
1328	/* in old days, we used to set x and y to 0 and continue.
1329	* it seems if we get into this case, something is probablye
1330	* screwed up and should be fixed.
1331	*/
1332	abort();
1333	}
1334	if (op->map != m) {
1335	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1336	op->map->path, m->path, op->x, op->y, x, y);
1337	}
1338
1339	/* Re did the following section of code - it looks like it had
1340	* lots of logic for things we no longer care about
1341	*/	1083	*/
		1084	if (pl)
		1085	if (pl->is_player () && (glow_radius || !QUERY_FLAG (pl, FLAG_NO_FIX_PLAYER)))
		1086	{
		1087	pl->update_stats ();
1342		1088
		1089	if (glow_radius && pl->is_on_map ())
		1090	update_all_los (pl->map, pl->x, pl->y);
		1091	}
		1092	}
		1093	else if (map)
		1094	{
		1095	map->dirty = true;
		1096	mapspace &ms = this->ms ();
		1097
		1098	if (object *pl = ms.player ())
		1099	{
		1100	if (is_player ())
		1101	{
		1102	if (!flag [FLAG_WIZPASS])
		1103	ms.smell = ++mapspace::smellcount; // remember the smell of the player
		1104
		1105	// leaving a spot always closes any open container on the ground
		1106	if (container && !container->env)
		1107	// this causes spurious floorbox updates, but it ensures
		1108	// that the CLOSE event is being sent.
		1109	close_container ();
		1110
		1111	--map->players;
		1112	map->touch ();
		1113	}
		1114	else if (pl->container == this)
		1115	{
		1116	// removing a container should close it
		1117	close_container ();
		1118	}
		1119
		1120	esrv_del_item (pl->contr, count);
		1121	}
		1122
1343	/* link the object above us */	1123	/* link the object above us */
1344	if (op->above)	1124	// re-link, make sure compiler can easily use cmove
1345	op->above->below=op->below;	1125	*(above ? &above->below : &ms.top) = below;
1346	else	1126	*(below ? &below->above : &ms.bot) = above;
1347	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1348
1349	/* Relink the object below us, if there is one */
1350	if(op->below) {
1351	op->below->above=op->above;
1352	} else {
1353	/* Nothing below, which means we need to relink map object for this space
1354	* use translated coordinates in case some oddness with map tiling is
1355	* evident
1356	*/
1357	if(GET_MAP_OB(m,x,y)!=op) {
1358	dump_object(op);
1359	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);
1360	dump_object(GET_MAP_OB(m,x,y));
1361	LOG(llevError,"%s\n",errmsg);
1362	}
1363	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1364	}
1365	op->above=NULL;
1366	op->below=NULL;
1367		1127
		1128	above = 0;
		1129	below = 0;
		1130
		1131	ms.invalidate ();
		1132
1368	if (op->map->in_memory == MAP_SAVING)	1133	if (map->in_memory == MAP_SAVING)
1369	return;	1134	return;
1370		1135
1371	tag = op->count;	1136	int check_walk_off = !flag [FLAG_NO_APPLY];
1372	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1373	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1374	/* No point updating the players look faces if he is the object
1375	* being removed.
1376	*/
1377		1137
1378	if(tmp->type==PLAYER && tmp!=op) {	1138	if (object *pl = ms.player ())
		1139	{
		1140	if (pl->container == this)
1379	/* If a container that the player is currently using somehow gets	1141	/* If a container that the player is currently using somehow gets
1380	* removed (most likely destroyed), update the player view	1142	* removed (most likely destroyed), update the player view
1381	* appropriately.	1143	* appropriately.
1382	*/	1144	*/
1383	if (tmp->container==op) {	1145	pl->close_container ();
1384	CLEAR_FLAG(op, FLAG_APPLIED);	1146
1385	tmp->container=NULL;	1147	//TODO: the floorbox prev/next might need updating
		1148	//esrv_del_item (pl->contr, count);
		1149	//TODO: update floorbox to preserve ordering
		1150	if (pl->contr->ns)
		1151	pl->contr->ns->floorbox_update ();
		1152	}
		1153
		1154	for (tmp = ms.bot; tmp; tmp = tmp->above)
		1155	{
		1156	/* No point updating the players look faces if he is the object
		1157	* being removed.
		1158	*/
		1159
		1160	/* See if object moving off should effect something */
		1161	if (check_walk_off
		1162	&& ((move_type & tmp->move_off)
		1163	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1164	{
		1165	move_apply (tmp, this, 0);
		1166
		1167	if (destroyed ())
		1168	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
		1169	}
		1170
		1171	last = tmp;
		1172	}
		1173
		1174	if (affects_los ())
		1175	update_all_los (map, x, y);
1386	}	1176	}
1387	tmp->contr->socket.update_look=1;
1388	}
1389	/* See if player moving off should effect something */
1390	if (check_walk_off && ((op->move_type & tmp->move_off) &&
1391	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {
1392
1393	move_apply(tmp, op, NULL);
1394	if (was_destroyed (op, tag)) {
1395	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "
1396	"leaving object\n", tmp->name, tmp->arch->name);
1397	}
1398	}
1399
1400	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1401
1402	if(tmp->above == tmp)
1403	tmp->above = NULL;
1404	last=tmp;
1405	}
1406	/* last == NULL of there are no objects on this space */
1407	if (last==NULL) {
1408	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1409	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1410	* those out anyways, and if there are any flags set right now, they won't
1411	* be correct anyways.
1412	*/
1413	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1414	update_position(op->map, op->x, op->y);
1415	}
1416	else
1417	update_object(last, UP_OBJ_REMOVE);
1418
1419	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))
1420	update_all_los(op->map, op->x, op->y);
1421
1422	}	1177	}
1423		1178
1424	/*	1179	/*
1425	* merge_ob(op,top):	1180	* merge_ob(op,top):
1426	*	1181	*
1427	* This function goes through all objects below and including top, and	1182	* This function goes through all objects below and including top, and
1428	* merges op to the first matching object.	1183	* merges op to the first matching object.
1429	* If top is NULL, it is calculated.	1184	* If top is NULL, it is calculated.
1430	* Returns pointer to object if it succeded in the merge, otherwise NULL	1185	* Returns pointer to object if it succeded in the merge, otherwise NULL
1431	*/	1186	*/
1432		1187	object *
1433	object *merge_ob(object *op, object *top) {	1188	merge_ob (object *op, object *top)
		1189	{
1434	if(!op->nrof)	1190	if (!op->nrof)
1435	return 0;	1191	return 0;
1436	if(top==NULL)	1192
		1193	if (!top)
1437	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1194	for (top = op; top && top->above; top = top->above)
		1195	;
		1196
1438	for(;top!=NULL;top=top->below) {	1197	for (; top; top = top->below)
1439	if(top==op)	1198	if (object::can_merge (op, top))
1440	continue;
1441	if (CAN_MERGE(op,top))
1442	{	1199	{
1443	top->nrof+=op->nrof;	1200	top->nrof += op->nrof;
1444	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1201
1445	op->weight = 0; /* Don't want any adjustements now */	1202	if (object *pl = top->visible_to ())
1446	remove_ob(op);	1203	esrv_update_item (UPD_NROF, pl, top);
1447	free_object(op);	1204
		1205	op->weight = 0; // cancel the addition above
		1206	op->carrying = 0; // must be 0 already
		1207
		1208	op->destroy ();
		1209
1448	return top;	1210	return top;
1449	}	1211	}
1450	}	1212
1451	return NULL;	1213	return 0;
1452	}	1214	}
1453		1215
		1216	void
		1217	object::expand_tail ()
		1218	{
		1219	if (more)
		1220	return;
		1221
		1222	object *prev = this;
		1223
		1224	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1225	{
		1226	object *op = arch_to_object (at);
		1227
		1228	op->name = name;
		1229	op->name_pl = name_pl;
		1230	op->title = title;
		1231
		1232	op->head = this;
		1233	prev->more = op;
		1234
		1235	prev = op;
		1236	}
		1237	}
		1238
1454	/*	1239	/*
1455	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1240	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1456	* job preparing multi-part monsters	1241	* job preparing multi-part monsters.
1457	*/	1242	*/
		1243	object *
1458	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1244	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1459	object* tmp;	1245	{
1460	if (op->head)	1246	op->remove ();
1461	op=op->head;	1247
1462	for (tmp=op;tmp;tmp=tmp->more){	1248	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
		1249	{
1463	tmp->x=x+tmp->arch->clone.x;	1250	tmp->x = x + tmp->arch->x;
1464	tmp->y=y+tmp->arch->clone.y;	1251	tmp->y = y + tmp->arch->y;
1465	}	1252	}
		1253
1466	return insert_ob_in_map (op, m, originator, flag);	1254	return insert_ob_in_map (op, m, originator, flag);
1467	}	1255	}
1468		1256
1469	/*	1257	/*
1470	* insert_ob_in_map (op, map, originator, flag):	1258	* insert_ob_in_map (op, map, originator, flag):
1471	* This function inserts the object in the two-way linked list	1259	* This function inserts the object in the two-way linked list
…		…
1484	* Return value:	1272	* Return value:
1485	* new object if 'op' was merged with other object	1273	* new object if 'op' was merged with other object
1486	* NULL if 'op' was destroyed	1274	* NULL if 'op' was destroyed
1487	* just 'op' otherwise	1275	* just 'op' otherwise
1488	*/	1276	*/
1489		1277	object *
1490	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1278	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1491	{	1279	{
1492	object *tmp, *top, *floor=NULL;	1280	op->remove ();
1493	sint16 x,y;
1494		1281
1495	if (QUERY_FLAG (op, FLAG_FREED)) {	1282	if (m == &freed_map)//D TODO: remove soon
1496	LOG (llevError, "Trying to insert freed object!\n");	1283	{//D
1497	return NULL;	1284	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
1498	}	1285	}//D
1499	if(m==NULL) {
1500	dump_object(op);
1501	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);
1502	return op;
1503	}
1504	if(out_of_map(m,op->x,op->y)) {
1505	dump_object(op);
1506	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);
1507	#ifdef MANY_CORES
1508	/* Better to catch this here, as otherwise the next use of this object
1509	* is likely to cause a crash. Better to find out where it is getting
1510	* improperly inserted.
1511	*/
1512	abort();
1513	#endif
1514	return op;
1515	}
1516	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1517	dump_object(op);
1518	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);
1519	return op;
1520	}
1521	if(op->more!=NULL) {
1522	/* The part may be on a different map. */
1523		1286
1524	object *more = op->more;
1525
1526	/* We really need the caller to normalize coordinates - if
1527	* we set the map, that doesn't work if the location is within
1528	* a map and this is straddling an edge. So only if coordinate
1529	* is clear wrong do we normalize it.
1530	*/
1531	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {
1532	/* Debugging information so you can see the last coordinates this object had */
1533	more->ox = more->x;
1534	more->oy = more->y;
1535	more->map = get_map_from_coord(m, &more->x, &more->y);
1536	} else if (!more->map) {
1537	/* For backwards compatibility - when not dealing with tiled maps,
1538	* more->map should always point to the parent.
1539	*/
1540	more->map = m;
1541	}
1542
1543	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {
1544	if ( ! op->head)
1545	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1546	return NULL;
1547	}
1548	}
1549	CLEAR_FLAG(op,FLAG_REMOVED);
1550
1551	/* Debugging information so you can see the last coordinates this object had */
1552	op->ox=op->x;
1553	op->oy=op->y;
1554
1555	/* Ideally, the caller figures this out. However, it complicates a lot	1287	/* Ideally, the caller figures this out. However, it complicates a lot
1556	* of areas of callers (eg, anything that uses find_free_spot would now	1288	* of areas of callers (eg, anything that uses find_free_spot would now
1557	* need extra work	1289	* need extra work
1558	*/	1290	*/
1559	op->map=get_map_from_coord(m, &op->x, &op->y);	1291	maptile *newmap = m;
1560	x = op->x;	1292	if (!xy_normalise (newmap, op->x, op->y))
1561	y = op->y;	1293	{
		1294	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
		1295	return 0;
		1296	}
1562		1297
		1298	if (object *more = op->more)
		1299	if (!insert_ob_in_map (more, m, originator, flag))
		1300	return 0;
		1301
		1302	CLEAR_FLAG (op, FLAG_REMOVED);
		1303
		1304	op->map = newmap;
		1305	mapspace &ms = op->ms ();
		1306
1563	/* this has to be done after we translate the coordinates.	1307	/* this has to be done after we translate the coordinates.
1564	*/	1308	*/
1565	if(op->nrof && !(flag & INS_NO_MERGE)) {	1309	if (op->nrof && !(flag & INS_NO_MERGE))
1566	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1310	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1567	if (CAN_MERGE(op,tmp)) {	1311	if (object::can_merge (op, tmp))
1568	op->nrof+=tmp->nrof;	1312	{
1569	remove_ob(tmp);	1313	// TODO: we actually want to update tmp, not op,
1570	free_object(tmp);	1314	// but some caller surely breaks when we return tmp
1571	}	1315	// from here :/
1572	}	1316	op->nrof += tmp->nrof;
		1317	tmp->destroy ();
		1318	}
1573		1319
1574	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1320	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1575	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1321	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1322
1576	if (!QUERY_FLAG(op, FLAG_ALIVE))	1323	if (!QUERY_FLAG (op, FLAG_ALIVE))
1577	CLEAR_FLAG(op, FLAG_NO_STEAL);	1324	CLEAR_FLAG (op, FLAG_NO_STEAL);
1578		1325
1579	if (flag & INS_BELOW_ORIGINATOR) {	1326	if (flag & INS_BELOW_ORIGINATOR)
		1327	{
1580	if (originator->map != op->map || originator->x != op->x ||	1328	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1581	originator->y != op->y) {	1329	{
1582	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1330	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1583	abort();	1331	abort ();
1584	}	1332	}
		1333
		1334	if (!originator->is_on_map ())
		1335	LOG (llevDebug | logBacktrace, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1336	op->debug_desc (), originator->debug_desc ());
		1337
1585	op->above = originator;	1338	op->above = originator;
1586	op->below = originator->below;	1339	op->below = originator->below;
1587	if (op->below) op->below->above = op;
1588	else SET_MAP_OB(op->map, op->x, op->y, op);
1589	/* since *below* originator, no need to update top */
1590	originator->below = op;	1340	originator->below = op;
1591	} else {	1341
		1342	*(op->below ? &op->below->above : &ms.bot) = op;
		1343	}
		1344	else
		1345	{
		1346	object *floor = 0;
		1347	object *top = ms.top;
		1348
1592	/* If there are other objects, then */	1349	/* If there are other objects, then */
1593	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1350	if (top)
1594	object *last=NULL;	1351	{
1595	/*	1352	/*
1596	* If there are multiple objects on this space, we do some trickier handling.	1353	* If there are multiple objects on this space, we do some trickier handling.
1597	* We've already dealt with merging if appropriate.	1354	* We've already dealt with merging if appropriate.
1598	* Generally, we want to put the new object on top. But if	1355	* Generally, we want to put the new object on top. But if
1599	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1356	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1600	* floor, we want to insert above that and no further.	1357	* floor, we want to insert above that and no further.
1601	* Also, if there are spell objects on this space, we stop processing	1358	* Also, if there are spell objects on this space, we stop processing
1602	* once we get to them. This reduces the need to traverse over all of	1359	* once we get to them. This reduces the need to traverse over all of
1603	* them when adding another one - this saves quite a bit of cpu time	1360	* them when adding another one - this saves quite a bit of cpu time
1604	* when lots of spells are cast in one area. Currently, it is presumed	1361	* when lots of spells are cast in one area. Currently, it is presumed
1605	* that flying non pickable objects are spell objects.	1362	* that flying non pickable objects are spell objects.
1606	*/	1363	*/
		1364	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
		1365	{
		1366	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
		1367	floor = tmp;
1607		1368
1608	while (top != NULL) {	1369	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1609	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1610	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1611	if (QUERY_FLAG(top, FLAG_NO_PICK)
1612	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1613	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1614	{	1370	{
1615	/* We insert above top, so we want this object below this */	1371	/* We insert above top, so we want this object below this */
1616	top=top->below;	1372	top = tmp->below;
1617	break;	1373	break;
1618	}	1374	}
1619	last = top;
1620	top = top->above;
1621	}
1622	/* Don't want top to be NULL, so set it to the last valid object */
1623	top = last;
1624		1375
		1376	top = tmp;
		1377	}
		1378
1625	/* We let update_position deal with figuring out what the space	1379	/* We let update_position deal with figuring out what the space
1626	* looks like instead of lots of conditions here.	1380	* looks like instead of lots of conditions here.
1627	* makes things faster, and effectively the same result.	1381	* makes things faster, and effectively the same result.
1628	*/	1382	*/
1629		1383
1630	/* Have object 'fall below' other objects that block view.	1384	/* Have object 'fall below' other objects that block view.
1631	* Unless those objects are exits, type 66	1385	* Unless those objects are exits.
1632	* If INS_ON_TOP is used, don't do this processing	1386	* If INS_ON_TOP is used, don't do this processing
1633	* Need to find the object that in fact blocks view, otherwise	1387	* Need to find the object that in fact blocks view, otherwise
1634	* stacking is a bit odd.	1388	* stacking is a bit odd.
1635	*/	1389	*/
1636	if (!(flag & INS_ON_TOP) &&	1390	if (!(flag & INS_ON_TOP)
1637	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1391	&& ms.flags () & P_BLOCKSVIEW
1638	(op->face && !op->face->visibility)) {	1392	&& (op->face && !faces [op->face].visibility))
		1393	{
		1394	object *last;
		1395
1639	for (last=top; last != floor; last=last->below)	1396	for (last = top; last != floor; last = last->below)
1640	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1397	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1398	break;
		1399
1641	/* Check to see if we found the object that blocks view,	1400	/* Check to see if we found the object that blocks view,
1642	* and make sure we have a below pointer for it so that	1401	* and make sure we have a below pointer for it so that
1643	* we can get inserted below this one, which requires we	1402	* we can get inserted below this one, which requires we
1644	* set top to the object below us.	1403	* set top to the object below us.
1645	*/	1404	*/
1646	if (last && last->below && last != floor) top=last->below;	1405	if (last && last->below && last != floor)
		1406	top = last->below;
		1407	}
		1408	} /* If objects on this space */
		1409
		1410	if (flag & INS_ABOVE_FLOOR_ONLY)
		1411	top = floor;
		1412
		1413	// insert object above top, or bottom-most if top = 0
		1414	if (!top)
		1415	{
		1416	op->below = 0;
		1417	op->above = ms.bot;
		1418	ms.bot = op;
		1419
		1420	*(op->above ? &op->above->below : &ms.top) = op;
		1421	}
		1422	else
		1423	{
		1424	op->above = top->above;
		1425	top->above = op;
		1426
		1427	op->below = top;
		1428	*(op->above ? &op->above->below : &ms.top) = op;
		1429	}
1647	}	1430	}
1648	} /* If objects on this space */
1649	if (flag & INS_MAP_LOAD)
1650	top = GET_MAP_TOP(op->map,op->x,op->y);
1651	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;
1652		1431
1653	/* Top is the object that our object (op) is going to get inserted above.	1432	if (op->is_player ())
1654	*/	1433	{
1655
1656	/* First object on this space */
1657	if (!top) {
1658	op->above = GET_MAP_OB(op->map, op->x, op->y);
1659	if (op->above) op->above->below = op;
1660	op->below = NULL;
1661	SET_MAP_OB(op->map, op->x, op->y, op);
1662	} else { /* get inserted into the stack above top */
1663	op->above = top->above;
1664	if (op->above) op->above->below = op;
1665	op->below = top;
1666	top->above = op;
1667	}
1668	if (op->above==NULL)
1669	SET_MAP_TOP(op->map,op->x, op->y, op);
1670	} /* else not INS_BELOW_ORIGINATOR */
1671
1672	if(op->type==PLAYER)
1673	op->contr->do_los=1;	1434	op->contr->do_los = 1;
1674		1435	++op->map->players;
1675	/* If we have a floor, we know the player, if any, will be above	1436	op->map->touch ();
1676	* it, so save a few ticks and start from there.
1677	*/
1678	if (!(flag & INS_MAP_LOAD))
1679	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {
1680	if (tmp->type == PLAYER)
1681	tmp->contr->socket.update_look=1;
1682	}	1437	}
1683		1438
		1439	op->map->dirty = true;
		1440
		1441	if (object *pl = ms.player ())
		1442	//TODO: the floorbox prev/next might need updating
		1443	//esrv_send_item (pl, op);
		1444	//TODO: update floorbox to preserve ordering
		1445	if (pl->contr->ns)
		1446	pl->contr->ns->floorbox_update ();
		1447
1684	/* If this object glows, it may affect lighting conditions that are	1448	/* If this object glows, it may affect lighting conditions that are
1685	* visible to others on this map. But update_all_los is really	1449	* visible to others on this map. But update_all_los is really
1686	* an inefficient way to do this, as it means los for all players	1450	* an inefficient way to do this, as it means los for all players
1687	* on the map will get recalculated. The players could very well	1451	* on the map will get recalculated. The players could very well
1688	* be far away from this change and not affected in any way -	1452	* be far away from this change and not affected in any way -
1689	* this should get redone to only look for players within range,	1453	* this should get redone to only look for players within range,
1690	* or just updating the P_NEED_UPDATE for spaces within this area	1454	* or just updating the P_UPTODATE for spaces within this area
1691	* of effect may be sufficient.	1455	* of effect may be sufficient.
1692	*/	1456	*/
1693	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1457	if (op->affects_los ())
		1458	{
		1459	op->ms ().invalidate ();
1694	update_all_los(op->map, op->x, op->y);	1460	update_all_los (op->map, op->x, op->y);
		1461	}
1695		1462
1696
1697	/* updates flags (blocked, alive, no magic, etc) for this map space */	1463	/* updates flags (blocked, alive, no magic, etc) for this map space */
1698	update_object(op,UP_OBJ_INSERT);	1464	update_object (op, UP_OBJ_INSERT);
1699		1465
		1466	INVOKE_OBJECT (INSERT, op);
1700		1467
1701	/* Don't know if moving this to the end will break anything. However,	1468	/* Don't know if moving this to the end will break anything. However,
1702	* we want to have update_look set above before calling this.	1469	* we want to have floorbox_update called before calling this.
1703	*	1470	*
1704	* check_move_on() must be after this because code called from	1471	* check_move_on() must be after this because code called from
1705	* check_move_on() depends on correct map flags (so functions like	1472	* check_move_on() depends on correct map flags (so functions like
1706	* blocked() and wall() work properly), and these flags are updated by	1473	* blocked() and wall() work properly), and these flags are updated by
1707	* update_object().	1474	* update_object().
1708	*/	1475	*/
1709		1476
1710	/* if this is not the head or flag has been passed, don't check walk on status */	1477	/* if this is not the head or flag has been passed, don't check walk on status */
1711
1712	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1478	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
		1479	{
1713	if (check_move_on(op, originator))	1480	if (check_move_on (op, originator))
1714	return NULL;	1481	return 0;
1715		1482
1716	/* If we are a multi part object, lets work our way through the check	1483	/* If we are a multi part object, lets work our way through the check
1717	* walk on's.	1484	* walk on's.
1718	*/	1485	*/
1719	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1486	for (object *tmp = op->more; tmp; tmp = tmp->more)
1720	if (check_move_on (tmp, originator))	1487	if (check_move_on (tmp, originator))
1721	return NULL;	1488	return 0;
1722	}	1489	}
		1490
1723	return op;	1491	return op;
1724	}	1492	}
1725		1493
1726	/* this function inserts an object in the map, but if it	1494	/* this function inserts an object in the map, but if it
1727	* finds an object of its own type, it'll remove that one first.	1495	* finds an object of its own type, it'll remove that one first.
1728	* op is the object to insert it under: supplies x and the map.	1496	* op is the object to insert it under: supplies x and the map.
1729	*/	1497	*/
		1498	void
1730	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1499	replace_insert_ob_in_map (const char *arch_string, object *op)
1731	object *tmp;	1500	{
1732	object *tmp1;
1733
1734	/* first search for itself and remove any old instances */	1501	/* first search for itself and remove any old instances */
1735		1502
1736	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1503	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1737	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1504	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1738	remove_ob(tmp);	1505	tmp->destroy ();
1739	free_object(tmp);
1740	}
1741	}
1742		1506
1743	tmp1=arch_to_object(find_archetype(arch_string));	1507	object *tmp = arch_to_object (archetype::find (arch_string));
1744		1508
1745		1509	tmp->x = op->x;
1746	tmp1->x = op->x; tmp1->y = op->y;	1510	tmp->y = op->y;
		1511
1747	insert_ob_in_map(tmp1,op->map,op,0);	1512	insert_ob_in_map (tmp, op->map, op, 0);
1748	}
1749
1750	/*
1751	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1752	* is returned contains nr objects, and the remaining parts contains
1753	* the rest (or is removed and freed if that number is 0).
1754	* On failure, NULL is returned, and the reason put into the
1755	* global static errmsg array.
1756	*/
1757
1758	object *get_split_ob(object *orig_ob, uint32 nr) {
1759	object *newob;
1760	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1761
1762	if(orig_ob->nrof<nr) {
1763	sprintf(errmsg,"There are only %d %ss.",
1764	orig_ob->nrof?orig_ob->nrof:1, orig_ob->name);
1765	return NULL;
1766	}
1767	newob = object_create_clone(orig_ob);
1768	if((orig_ob->nrof-=nr)<1) {
1769	if ( ! is_removed)
1770	remove_ob(orig_ob);
1771	free_object2(orig_ob, 1);
1772	}
1773	else if ( ! is_removed) {
1774	if(orig_ob->env!=NULL)
1775	sub_weight (orig_ob->env,orig_ob->weight*nr);
1776	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {
1777	strcpy(errmsg, "Tried to split object whose map is not in memory.");
1778	LOG(llevDebug,
1779	"Error, Tried to split object whose map is not in memory.\n");
1780	return NULL;
1781	}
1782	}
1783	newob->nrof=nr;
1784
1785	return newob;
1786	}	1513	}
1787		1514
		1515	object *
		1516	object::insert_at (object *where, object *originator, int flags)
		1517	{
		1518	if (where->env)
		1519	return where->env->insert (this);
		1520	else
		1521	return where->map->insert (this, where->x, where->y, originator, flags);
		1522	}
		1523
1788	/*	1524	/*
1789	* decrease_ob_nr(object, number) decreases a specified number from	1525	* decrease(object, number) decreases a specified number from
1790	* the amount of an object. If the amount reaches 0, the object	1526	* the amount of an object. If the amount reaches 0, the object
1791	* is subsequently removed and freed.	1527	* is subsequently removed and freed.
1792	*	1528	*
1793	* Return value: 'op' if something is left, NULL if the amount reached 0	1529	* Return value: 'op' if something is left, NULL if the amount reached 0
1794	*/	1530	*/
1795		1531	bool
1796	object *decrease_ob_nr (object *op, uint32 i)	1532	object::decrease (sint32 nr)
1797	{	1533	{
1798	object *tmp;	1534	if (!nr)
1799	player *pl;	1535	return true;
1800		1536
1801	if (i == 0) /* objects with op->nrof require this check */	1537	nr = min (nr, nrof);
		1538
		1539	if (nrof > nr)
		1540	{
		1541	nrof -= nr;
		1542	adjust_weight (env, -weight * max (1, nr)); // carrying == 0
		1543
		1544	if (object *pl = visible_to ())
		1545	esrv_update_item (UPD_NROF, pl, this);
		1546
		1547	return true;
		1548	}
		1549	else
		1550	{
		1551	destroy ();
		1552	return false;
		1553	}
		1554	}
		1555
		1556	/*
		1557	* split(ob,nr) splits up ob into two parts. The part which
		1558	* is returned contains nr objects, and the remaining parts contains
		1559	* the rest (or is removed and returned if that number is 0).
		1560	* On failure, NULL is returned.
		1561	*/
		1562	object *
		1563	object::split (sint32 nr)
		1564	{
		1565	int have = number_of ();
		1566
		1567	if (have < nr)
		1568	return 0;
		1569	else if (have == nr)
		1570	{
		1571	remove ();
		1572	return this;
		1573	}
		1574	else
		1575	{
		1576	decrease (nr);
		1577
		1578	object *op = deep_clone ();
		1579	op->nrof = nr;
1802	return op;	1580	return op;
1803
1804	if (i > op->nrof)
1805	i = op->nrof;
1806
1807	if (QUERY_FLAG (op, FLAG_REMOVED))
1808	{	1581	}
1809	op->nrof -= i;	1582	}
		1583
		1584	object *
		1585	insert_ob_in_ob (object *op, object *where)
		1586	{
		1587	if (!where)
1810	}	1588	{
1811	else if (op->env != NULL)	1589	char *dump = dump_object (op);
1812	{	1590	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1813	/* is this object in the players inventory, or sub container	1591	free (dump);
1814	* therein?
1815	*/
1816	tmp = is_player_inv (op->env);
1817	/* nope. Is this a container the player has opened?
1818	* If so, set tmp to that player.
1819	* IMO, searching through all the players will mostly
1820	* likely be quicker than following op->env to the map,
1821	* and then searching the map for a player.
1822	*/
1823	if (!tmp) {
1824	for (pl=first_player; pl; pl=pl->next)
1825	if (pl->ob->container == op->env) break;
1826	if (pl) tmp=pl->ob;
1827	else tmp=NULL;
1828	}
1829
1830	if (i < op->nrof) {
1831	sub_weight (op->env, op->weight * i);
1832	op->nrof -= i;
1833	if (tmp) {
1834	esrv_send_item(tmp, op);
1835	}
1836	} else {
1837	remove_ob (op);
1838	op->nrof = 0;
1839	if (tmp) {
1840	esrv_del_item(tmp->contr, op->count);
1841	}
1842	}
1843	}
1844	else
1845	{
1846	object *above = op->above;
1847
1848	if (i < op->nrof) {
1849	op->nrof -= i;
1850	} else {
1851	remove_ob (op);
1852	op->nrof = 0;
1853	}
1854	/* Since we just removed op, op->above is null */
1855	for (tmp = above; tmp != NULL; tmp = tmp->above)
1856	if (tmp->type == PLAYER) {
1857	if (op->nrof)
1858	esrv_send_item(tmp, op);
1859	else
1860	esrv_del_item(tmp->contr, op->count);
1861	}
1862	}
1863
1864	if (op->nrof) {
1865	return op;	1592	return op;
1866	} else {	1593	}
1867	free_object (op);	1594
1868	return NULL;	1595	if (where->head_ () != where)
1869	}	1596	{
1870	}	1597	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1871		1598	where = where->head;
1872	/*
1873	* add_weight(object, weight) adds the specified weight to an object,
1874	* and also updates how much the environment(s) is/are carrying.
1875	*/
1876
1877	void add_weight (object *op, signed long weight) {
1878	while (op!=NULL) {
1879	if (op->type == CONTAINER) {
1880	weight=(signed long)(weight*(100-op->stats.Str)/100);
1881	}
1882	op->carrying+=weight;
1883	op=op->env;
1884	}	1599	}
1885	}
1886		1600
		1601	return where->insert (op);
		1602	}
		1603
1887	/*	1604	/*
1888	* insert_ob_in_ob(op,environment):	1605	* env->insert (op)
1889	* This function inserts the object op in the linked list	1606	* This function inserts the object op in the linked list
1890	* inside the object environment.	1607	* inside the object environment.
1891	*	1608	*
1892	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1893	* the inventory at the last position or next to other objects of the same
1894	* type.
1895	* Frank: Now sorted by type, archetype and magic!
1896	*
1897	* The function returns now pointer to inserted item, and return value can	1609	* The function returns now pointer to inserted item, and return value can
1898	* be != op, if items are merged. -Tero	1610	* be != op, if items are merged. -Tero
1899	*/	1611	*/
1900		1612	object *
1901	object *insert_ob_in_ob(object *op,object *where) {	1613	object::insert (object *op)
1902	object *tmp, *otmp;	1614	{
1903
1904	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1905	dump_object(op);
1906	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);
1907	return op;
1908	}
1909	if(where==NULL) {
1910	dump_object(op);
1911	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1912	return op;
1913	}
1914	if (where->head) {
1915	LOG(llevDebug,
1916	"Warning: Tried to insert object wrong part of multipart object.\n");
1917	where = where->head;
1918	}
1919	if (op->more) {	1615	if (op->more)
		1616	{
1920	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1617	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1921	op->name, op->count);
1922	return op;	1618	return op;
1923	}	1619	}
1924	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1620
1925	CLEAR_FLAG(op, FLAG_REMOVED);	1621	op->remove ();
		1622
		1623	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1624
1926	if(op->nrof) {	1625	if (op->nrof)
1927	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1626	for (object *tmp = inv; tmp; tmp = tmp->below)
1928	if ( CAN_MERGE(tmp,op) ) {	1627	if (object::can_merge (tmp, op))
		1628	{
1929	/* return the original object and remove inserted object	1629	/* return the original object and remove inserted object
1930	(client needs the original object) */	1630	(client needs the original object) */
1931	tmp->nrof += op->nrof;	1631	tmp->nrof += op->nrof;
1932	/* Weight handling gets pretty funky. Since we are adding to	1632
1933	* tmp->nrof, we need to increase the weight.	1633	if (object *pl = tmp->visible_to ())
1934	*/	1634	esrv_update_item (UPD_NROF, pl, tmp);
1935	add_weight (where, op->weight*op->nrof);	1635
1936	SET_FLAG(op, FLAG_REMOVED);	1636	adjust_weight (this, op->total_weight ());
1937	free_object(op); /* free the inserted object */	1637
		1638	op->destroy ();
1938	op = tmp;	1639	op = tmp;
1939	remove_ob (op); /* and fix old object's links */	1640	goto inserted;
1940	CLEAR_FLAG(op, FLAG_REMOVED);
1941	break;
1942	}	1641	}
1943		1642
1944	/* I assume combined objects have no inventory	1643	op->owner = 0; // it's his/hers now. period.
1945	* We add the weight - this object could have just been removed	1644	op->map = 0;
1946	* (if it was possible to merge). calling remove_ob will subtract	1645	op->x = 0;
1947	* the weight, so we need to add it in again, since we actually do	1646	op->y = 0;
1948	* the linking below
1949	*/
1950	add_weight (where, op->weight*op->nrof);
1951	} else
1952	add_weight (where, (op->weight+op->carrying));
1953		1647
1954	otmp=is_player_inv(where);
1955	if (otmp&&otmp->contr!=NULL) {
1956	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))
1957	fix_player(otmp);
1958	}
1959
1960	op->map=NULL;
1961	op->env=where;
1962	op->above=NULL;	1648	op->above = 0;
1963	op->below=NULL;	1649	op->below = inv;
1964	op->x=0,op->y=0;	1650	op->env = this;
1965	op->ox=0,op->oy=0;
1966		1651
		1652	if (inv)
		1653	inv->above = op;
		1654
		1655	inv = op;
		1656
		1657	op->flag [FLAG_REMOVED] = 0;
		1658
		1659	if (object *pl = op->visible_to ())
		1660	esrv_send_item (pl, op);
		1661
		1662	adjust_weight (this, op->total_weight ());
		1663
		1664	inserted:
1967	/* reset the light list and los of the players on the map */	1665	/* reset the light list and los of the players on the map */
1968	if((op->glow_radius!=0)&&where->map)	1666	if (op->glow_radius && is_on_map ())
1969	{	1667	{
1970	#ifdef DEBUG_LIGHTS	1668	update_stats ();
1971	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1669	update_all_los (map, x, y);
1972	op->name);
1973	#endif /* DEBUG_LIGHTS */
1974	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);
1975	}	1670	}
		1671	else if (is_player () && !flag [FLAG_NO_FIX_PLAYER])
		1672	// if this is a player's inventory, update stats
		1673	update_stats ();
1976		1674
1977	/* Client has no idea of ordering so lets not bother ordering it here.	1675	INVOKE_OBJECT (INSERT, this);
1978	* It sure simplifies this function...	1676
1979	*/
1980	if (where->inv==NULL)
1981	where->inv=op;
1982	else {
1983	op->below = where->inv;
1984	op->below->above = op;
1985	where->inv = op;
1986	}
1987	return op;	1677	return op;
1988	}	1678	}
1989		1679
1990	/*	1680	/*
1991	* Checks if any objects has a move_type that matches objects	1681	* Checks if any objects has a move_type that matches objects
…		…
2005	*	1695	*
2006	* MSW 2001-07-08: Check all objects on space, not just those below	1696	* MSW 2001-07-08: Check all objects on space, not just those below
2007	* object being inserted. insert_ob_in_map may not put new objects	1697	* object being inserted. insert_ob_in_map may not put new objects
2008	* on top.	1698	* on top.
2009	*/	1699	*/
2010		1700	int
2011	int check_move_on (object *op, object *originator)	1701	check_move_on (object *op, object *originator)
2012	{	1702	{
2013	object *tmp;	1703	object *tmp;
2014	tag_t tag;
2015	mapstruct *m=op->map;	1704	maptile *m = op->map;
2016	int x=op->x, y=op->y;	1705	int x = op->x, y = op->y;
		1706
2017	MoveType move_on, move_slow, move_block;	1707	MoveType move_on, move_slow, move_block;
2018		1708
2019	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1709	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2020	return 0;
2021
2022	tag = op->count;
2023
2024	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
2025	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
2026	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
2027
2028	/* if nothing on this space will slow op down or be applied,
2029	* no need to do checking below. have to make sure move_type
2030	* is set, as lots of objects don't have it set - we treat that
2031	* as walking.
2032	*/
2033	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
2034	return 0;
2035
2036	/* This is basically inverse logic of that below - basically,
2037	* if the object can avoid the move on or slow move, they do so,
2038	* but can't do it if the alternate movement they are using is
2039	* blocked. Logic on this seems confusing, but does seem correct.
2040	*/
2041	if ((op->move_type & ~move_on & ~move_block) != 0 &&
2042	(op->move_type & ~move_slow & ~move_block) != 0) return 0;
2043
2044	/* The objects have to be checked from top to bottom.
2045	* Hence, we first go to the top:
2046	*/
2047
2048	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&
2049	tmp->above!=NULL; tmp=tmp->above) {
2050	/* Trim the search when we find the first other spell effect
2051	* this helps performance so that if a space has 50 spell objects,
2052	* we don't need to check all of them.
2053	*/
2054	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;
2055	}
2056	for(;tmp!=NULL; tmp=tmp->below) {
2057	if (tmp == op) continue; /* Can't apply yourself */
2058
2059	/* Check to see if one of the movement types should be slowed down.
2060	* Second check makes sure that the movement types not being slowed
2061	* (~slow_move) is not blocked on this space - just because the
2062	* space doesn't slow down swimming (for example), if you can't actually
2063	* swim on that space, can't use it to avoid the penalty.
2064	*/
2065	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {
2066	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2067	((op->move_type & tmp->move_slow) &&
2068	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {
2069
2070	float diff;
2071
2072	diff = tmp->move_slow_penalty*FABS(op->speed);
2073	if (op->type == PLAYER) {
2074	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||
2075	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {
2076	diff /= 4.0;
2077	}
2078	}
2079	op->speed_left -= diff;
2080	}
2081	}
2082
2083	/* Basically same logic as above, except now for actual apply. */
2084	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2085	((op->move_type & tmp->move_on) &&
2086	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {
2087
2088	move_apply(tmp, op, originator);
2089	if (was_destroyed (op, tag))
2090	return 1;
2091
2092	/* what the person/creature stepped onto has moved the object
2093	* someplace new. Don't process any further - if we did,
2094	* have a feeling strange problems would result.
2095	*/
2096	if (op->map != m || op->x != x || op->y != y) return 0;
2097	}
2098	}
2099	return 0;	1710	return 0;
		1711
		1712	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1713	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		1714	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		1715
		1716	/* if nothing on this space will slow op down or be applied,
		1717	* no need to do checking below. have to make sure move_type
		1718	* is set, as lots of objects don't have it set - we treat that
		1719	* as walking.
		1720	*/
		1721	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		1722	return 0;
		1723
		1724	/* This is basically inverse logic of that below - basically,
		1725	* if the object can avoid the move on or slow move, they do so,
		1726	* but can't do it if the alternate movement they are using is
		1727	* blocked. Logic on this seems confusing, but does seem correct.
		1728	*/
		1729	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		1730	return 0;
		1731
		1732	/* The objects have to be checked from top to bottom.
		1733	* Hence, we first go to the top:
		1734	*/
		1735
		1736	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
		1737	{
		1738	/* Trim the search when we find the first other spell effect
		1739	* this helps performance so that if a space has 50 spell objects,
		1740	* we don't need to check all of them.
		1741	*/
		1742	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1743	break;
		1744	}
		1745
		1746	for (; tmp; tmp = tmp->below)
		1747	{
		1748	if (tmp == op)
		1749	continue; /* Can't apply yourself */
		1750
		1751	/* Check to see if one of the movement types should be slowed down.
		1752	* Second check makes sure that the movement types not being slowed
		1753	* (~slow_move) is not blocked on this space - just because the
		1754	* space doesn't slow down swimming (for example), if you can't actually
		1755	* swim on that space, can't use it to avoid the penalty.
		1756	*/
		1757	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1758	{
		1759	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		1760	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1761	{
		1762
		1763	float
		1764	diff = tmp->move_slow_penalty * fabs (op->speed);
		1765
		1766	if (op->is_player ())
		1767	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		1768	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		1769	diff /= 4.0;
		1770
		1771	op->speed_left -= diff;
		1772	}
		1773	}
		1774
		1775	/* Basically same logic as above, except now for actual apply. */
		1776	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		1777	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		1778	{
		1779	move_apply (tmp, op, originator);
		1780
		1781	if (op->destroyed ())
		1782	return 1;
		1783
		1784	/* what the person/creature stepped onto has moved the object
		1785	* someplace new. Don't process any further - if we did,
		1786	* have a feeling strange problems would result.
		1787	*/
		1788	if (op->map != m || op->x != x || op->y != y)
		1789	return 0;
		1790	}
		1791	}
		1792
		1793	return 0;
2100	}	1794	}
2101		1795
2102	/*	1796	/*
2103	* present_arch(arch, map, x, y) searches for any objects with	1797	* present_arch(arch, map, x, y) searches for any objects with
2104	* a matching archetype at the given map and coordinates.	1798	* a matching archetype at the given map and coordinates.
2105	* The first matching object is returned, or NULL if none.	1799	* The first matching object is returned, or NULL if none.
2106	*/	1800	*/
2107		1801	object *
2108	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1802	present_arch (const archetype *at, maptile *m, int x, int y)
2109	object *tmp;	1803	{
2110	if(m==NULL || out_of_map(m,x,y)) {	1804	if (!m || out_of_map (m, x, y))
		1805	{
2111	LOG(llevError,"Present_arch called outside map.\n");	1806	LOG (llevError, "Present_arch called outside map.\n");
2112	return NULL;	1807	return NULL;
2113	}	1808	}
2114	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1809
2115	if(tmp->arch == at)	1810	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1811	if (tmp->arch->archname == at->archname)
2116	return tmp;	1812	return tmp;
		1813
2117	return NULL;	1814	return NULL;
2118	}	1815	}
2119		1816
2120	/*	1817	/*
2121	* present(type, map, x, y) searches for any objects with	1818	* present(type, map, x, y) searches for any objects with
2122	* a matching type variable at the given map and coordinates.	1819	* a matching type variable at the given map and coordinates.
2123	* The first matching object is returned, or NULL if none.	1820	* The first matching object is returned, or NULL if none.
2124	*/	1821	*/
2125		1822	object *
2126	object *present(unsigned char type,mapstruct *m, int x,int y) {	1823	present (unsigned char type, maptile *m, int x, int y)
2127	object *tmp;	1824	{
2128	if(out_of_map(m,x,y)) {	1825	if (out_of_map (m, x, y))
		1826	{
2129	LOG(llevError,"Present called outside map.\n");	1827	LOG (llevError, "Present called outside map.\n");
2130	return NULL;	1828	return NULL;
2131	}	1829	}
2132	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1830
		1831	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2133	if(tmp->type==type)	1832	if (tmp->type == type)
2134	return tmp;	1833	return tmp;
		1834
2135	return NULL;	1835	return NULL;
2136	}	1836	}
2137		1837
2138	/*	1838	/*
2139	* present_in_ob(type, object) searches for any objects with	1839	* present_in_ob(type, object) searches for any objects with
2140	* a matching type variable in the inventory of the given object.	1840	* a matching type variable in the inventory of the given object.
2141	* The first matching object is returned, or NULL if none.	1841	* The first matching object is returned, or NULL if none.
2142	*/	1842	*/
2143		1843	object *
2144	object *present_in_ob(unsigned char type, const object *op) {	1844	present_in_ob (unsigned char type, const object *op)
2145	object *tmp;	1845	{
2146	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1846	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2147	if(tmp->type==type)	1847	if (tmp->type == type)
2148	return tmp;	1848	return tmp;
		1849
2149	return NULL;	1850	return NULL;
2150	}	1851	}
2151		1852
2152	/*	1853	/*
2153	* present_in_ob (type, str, object) searches for any objects with	1854	* present_in_ob (type, str, object) searches for any objects with
…		…
2161	* str is the string to match against. Note that we match against	1862	* str is the string to match against. Note that we match against
2162	* the object name, not the archetype name. this is so that the	1863	* the object name, not the archetype name. this is so that the
2163	* spell code can use one object type (force), but change it's name	1864	* spell code can use one object type (force), but change it's name
2164	* to be unique.	1865	* to be unique.
2165	*/	1866	*/
2166		1867	object *
2167	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1868	present_in_ob_by_name (int type, const char *str, const object *op)
2168	object *tmp;	1869	{
2169
2170	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1870	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2171	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1871	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2172	return tmp;	1872	return tmp;
2173	}	1873
2174	return NULL;	1874	return 0;
2175	}	1875	}
2176		1876
2177	/*	1877	/*
2178	* present_arch_in_ob(archetype, object) searches for any objects with	1878	* present_arch_in_ob(archetype, object) searches for any objects with
2179	* a matching archetype in the inventory of the given object.	1879	* a matching archetype in the inventory of the given object.
2180	* The first matching object is returned, or NULL if none.	1880	* The first matching object is returned, or NULL if none.
2181	*/	1881	*/
2182		1882	object *
2183	object *present_arch_in_ob(const archetype *at, const object *op) {	1883	present_arch_in_ob (const archetype *at, const object *op)
2184	object *tmp;	1884	{
2185	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1885	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2186	if( tmp->arch == at)	1886	if (tmp->arch->archname == at->archname)
2187	return tmp;	1887	return tmp;
		1888
2188	return NULL;	1889	return NULL;
2189	}	1890	}
2190		1891
2191	/*	1892	/*
2192	* activate recursively a flag on an object inventory	1893	* activate recursively a flag on an object inventory
2193	*/	1894	*/
		1895	void
2194	void flag_inv(object*op, int flag){	1896	flag_inv (object *op, int flag)
2195	object *tmp;	1897	{
2196	if(op->inv)
2197	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1898	for (object *tmp = op->inv; tmp; tmp = tmp->below)
		1899	{
2198	SET_FLAG(tmp, flag);	1900	SET_FLAG (tmp, flag);
2199	flag_inv(tmp,flag);	1901	flag_inv (tmp, flag);
2200	}	1902	}
		1903	}
		1904
2201	}/*	1905	/*
2202	* desactivate recursively a flag on an object inventory	1906	* deactivate recursively a flag on an object inventory
2203	*/	1907	*/
		1908	void
2204	void unflag_inv(object*op, int flag){	1909	unflag_inv (object *op, int flag)
2205	object *tmp;	1910	{
2206	if(op->inv)
2207	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1911	for (object *tmp = op->inv; tmp; tmp = tmp->below)
		1912	{
2208	CLEAR_FLAG(tmp, flag);	1913	CLEAR_FLAG (tmp, flag);
2209	unflag_inv(tmp,flag);	1914	unflag_inv (tmp, flag);
2210	}	1915	}
2211	}
2212
2213	/*
2214	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2215	* all it's inventory (recursively).
2216	* If checksums are used, a player will get set_cheat called for
2217	* him/her-self and all object carried by a call to this function.
2218	*/
2219
2220	void set_cheat(object *op) {
2221	SET_FLAG(op, FLAG_WAS_WIZ);
2222	flag_inv(op, FLAG_WAS_WIZ);
2223	}	1916	}
2224		1917
2225	/*	1918	/*
2226	* find_free_spot(object, map, x, y, start, stop) will search for	1919	* find_free_spot(object, map, x, y, start, stop) will search for
2227	* a spot at the given map and coordinates which will be able to contain	1920	* a spot at the given map and coordinates which will be able to contain
…		…
2229	* to search (see the freearr_x/y[] definition).	1922	* to search (see the freearr_x/y[] definition).
2230	* It returns a random choice among the alternatives found.	1923	* It returns a random choice among the alternatives found.
2231	* start and stop are where to start relative to the free_arr array (1,9	1924	* start and stop are where to start relative to the free_arr array (1,9
2232	* does all 4 immediate directions). This returns the index into the	1925	* does all 4 immediate directions). This returns the index into the
2233	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1926	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2234	* Note - this only checks to see if there is space for the head of the
2235	* object - if it is a multispace object, this should be called for all
2236	* pieces.
2237	* Note2: This function does correctly handle tiled maps, but does not	1927	* Note: This function does correctly handle tiled maps, but does not
2238	* inform the caller. However, insert_ob_in_map will update as	1928	* inform the caller. However, insert_ob_in_map will update as
2239	* necessary, so the caller shouldn't need to do any special work.	1929	* necessary, so the caller shouldn't need to do any special work.
2240	* Note - updated to take an object instead of archetype - this is necessary	1930	* Note - updated to take an object instead of archetype - this is necessary
2241	* because arch_blocked (now ob_blocked) needs to know the movement type	1931	* because arch_blocked (now ob_blocked) needs to know the movement type
2242	* to know if the space in question will block the object. We can't use	1932	* to know if the space in question will block the object. We can't use
2243	* the archetype because that isn't correct if the monster has been	1933	* the archetype because that isn't correct if the monster has been
2244	* customized, changed states, etc.	1934	* customized, changed states, etc.
2245	*/	1935	*/
2246		1936	int
2247	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	1937	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		1938	{
		1939	int altern[SIZEOFFREE];
2248	int i,index=0, flag;	1940	int index = 0, flag;
2249	static int altern[SIZEOFFREE];
2250		1941
2251	for(i=start;i<stop;i++) {	1942	for (int i = start; i < stop; i++)
2252	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	1943	{
2253	if(!flag)	1944	mapxy pos (m, x, y); pos.move (i);
		1945
		1946	if (!pos.normalise ())
		1947	continue;
		1948
		1949	mapspace &ms = *pos;
		1950
		1951	if (ms.flags () & P_IS_ALIVE)
		1952	continue;
		1953
		1954	/* However, often
		1955	* ob doesn't have any move type (when used to place exits)
		1956	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1957	*/
		1958	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1959	{
2254	altern[index++]=i;	1960	altern [index++] = i;
		1961	continue;
		1962	}
2255		1963
2256	/* Basically, if we find a wall on a space, we cut down the search size.	1964	/* Basically, if we find a wall on a space, we cut down the search size.
2257	* In this way, we won't return spaces that are on another side of a wall.	1965	* In this way, we won't return spaces that are on another side of a wall.
2258	* This mostly work, but it cuts down the search size in all directions -	1966	* This mostly work, but it cuts down the search size in all directions -
2259	* if the space being examined only has a wall to the north and empty	1967	* if the space being examined only has a wall to the north and empty
2260	* spaces in all the other directions, this will reduce the search space	1968	* spaces in all the other directions, this will reduce the search space
2261	* to only the spaces immediately surrounding the target area, and	1969	* to only the spaces immediately surrounding the target area, and
2262	* won't look 2 spaces south of the target space.	1970	* won't look 2 spaces south of the target space.
2263	*/	1971	*/
2264	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	1972	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1973	{
2265	stop=maxfree[i];	1974	stop = maxfree[i];
2266	}	1975	continue;
2267	if(!index) return -1;	1976	}
2268	return altern[RANDOM()%index];
2269	}
2270		1977
		1978	/* Note it is intentional that we check ob - the movement type of the
		1979	* head of the object should correspond for the entire object.
		1980	*/
		1981	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1982	continue;
		1983
		1984	if (ob->blocked (pos.m, pos.x, pos.y))
		1985	continue;
		1986
		1987	altern [index++] = i;
		1988	}
		1989
		1990	if (!index)
		1991	return -1;
		1992
		1993	return altern [rndm (index)];
		1994	}
		1995
2271	/*	1996	/*
2272	* find_first_free_spot(archetype, mapstruct, x, y) works like	1997	* find_first_free_spot(archetype, maptile, x, y) works like
2273	* find_free_spot(), but it will search max number of squares.	1998	* find_free_spot(), but it will search max number of squares.
2274	* But it will return the first available spot, not a random choice.	1999	* But it will return the first available spot, not a random choice.
2275	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2000	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2276	*/	2001	*/
2277		2002	int
2278	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2003	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2279	int i;	2004	{
2280	for(i=0;i<SIZEOFFREE;i++) {	2005	for (int i = 0; i < SIZEOFFREE; i++)
2281	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2006	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2282	return i;	2007	return i;
2283	}	2008
2284	return -1;	2009	return -1;
2285	}	2010	}
2286		2011
2287	/*	2012	/*
2288	* The function permute(arr, begin, end) randomly reorders the array	2013	* The function permute(arr, begin, end) randomly reorders the array
2289	* arr[begin..end-1].	2014	* arr[begin..end-1].
		2015	* now uses a fisher-yates shuffle, old permute was broken
2290	*/	2016	*/
		2017	static void
2291	static void permute(int *arr, int begin, int end)	2018	permute (int *arr, int begin, int end)
2292	{	2019	{
2293	int i, j, tmp, len;	2020	arr += begin;
		2021	end -= begin;
2294		2022
2295	len = end-begin;	2023	while (--end)
2296	for(i = begin; i < end; i++)	2024	swap (arr [end], arr [rndm (end + 1)]);
2297	{
2298	j = begin+RANDOM()%len;
2299
2300	tmp = arr[i];
2301	arr[i] = arr[j];
2302	arr[j] = tmp;
2303	}
2304	}	2025	}
2305		2026
2306	/* new function to make monster searching more efficient, and effective!	2027	/* new function to make monster searching more efficient, and effective!
2307	* This basically returns a randomized array (in the passed pointer) of	2028	* This basically returns a randomized array (in the passed pointer) of
2308	* the spaces to find monsters. In this way, it won't always look for	2029	* the spaces to find monsters. In this way, it won't always look for
2309	* monsters to the north first. However, the size of the array passed	2030	* monsters to the north first. However, the size of the array passed
2310	* covers all the spaces, so within that size, all the spaces within	2031	* covers all the spaces, so within that size, all the spaces within
2311	* the 3x3 area will be searched, just not in a predictable order.	2032	* the 3x3 area will be searched, just not in a predictable order.
2312	*/	2033	*/
		2034	void
2313	void get_search_arr(int *search_arr)	2035	get_search_arr (int *search_arr)
2314	{	2036	{
2315	int i;	2037	int i;
2316		2038
2317	for(i = 0; i < SIZEOFFREE; i++)	2039	for (i = 0; i < SIZEOFFREE; i++)
2318	{
2319	search_arr[i] = i;	2040	search_arr[i] = i;
2320	}
2321		2041
2322	permute(search_arr, 1, SIZEOFFREE1+1);	2042	permute (search_arr, 1, SIZEOFFREE1 + 1);
2323	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2043	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2324	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2044	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2325	}	2045	}
2326		2046
2327	/*	2047	/*
2328	* find_dir(map, x, y, exclude) will search some close squares in the	2048	* find_dir(map, x, y, exclude) will search some close squares in the
2329	* given map at the given coordinates for live objects.	2049	* given map at the given coordinates for live objects.
…		…
2334	* Perhaps incorrectly, but I'm making the assumption that exclude	2054	* Perhaps incorrectly, but I'm making the assumption that exclude
2335	* is actually want is going to try and move there. We need this info	2055	* is actually want is going to try and move there. We need this info
2336	* because we have to know what movement the thing looking to move	2056	* because we have to know what movement the thing looking to move
2337	* there is capable of.	2057	* there is capable of.
2338	*/	2058	*/
2339		2059	int
2340	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2060	find_dir (maptile *m, int x, int y, object *exclude)
		2061	{
2341	int i,max=SIZEOFFREE, mflags;	2062	int i, max = SIZEOFFREE, mflags;
		2063
2342	sint16 nx, ny;	2064	sint16 nx, ny;
2343	object *tmp;	2065	object *tmp;
2344	mapstruct *mp;	2066	maptile *mp;
		2067
2345	MoveType blocked, move_type;	2068	MoveType blocked, move_type;
2346		2069
2347	if (exclude && exclude->head) {	2070	if (exclude && exclude->head_ () != exclude)
		2071	{
2348	exclude = exclude->head;	2072	exclude = exclude->head;
2349	move_type = exclude->move_type;	2073	move_type = exclude->move_type;
2350	} else {	2074	}
		2075	else
		2076	{
2351	/* If we don't have anything, presume it can use all movement types. */	2077	/* If we don't have anything, presume it can use all movement types. */
2352	move_type=MOVE_ALL;	2078	move_type = MOVE_ALL;
		2079	}
		2080
		2081	for (i = 1; i < max; i++)
2353	}	2082	{
2354		2083	mp = m;
2355	for(i=1;i<max;i++) {
2356	mp = m;
2357	nx = x + freearr_x[i];	2084	nx = x + freearr_x[i];
2358	ny = y + freearr_y[i];	2085	ny = y + freearr_y[i];
2359		2086
2360	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2087	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2088
2361	if (mflags & P_OUT_OF_MAP) {	2089	if (mflags & P_OUT_OF_MAP)
2362	max = maxfree[i];	2090	max = maxfree[i];
2363	} else {	2091	else
2364	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2092	{
		2093	mapspace &ms = mp->at (nx, ny);
2365		2094
		2095	blocked = ms.move_block;
		2096
2366	if ((move_type & blocked) == move_type) {	2097	if ((move_type & blocked) == move_type)
2367	max=maxfree[i];	2098	max = maxfree[i];
2368	} else if (mflags & P_IS_ALIVE) {	2099	else if (mflags & P_IS_ALIVE)
2369	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2100	{
2370	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2101	for (tmp = ms.bot; tmp; tmp = tmp->above)
2371	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2102	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2372	break;	2103	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2373	}	2104	break;
2374	}	2105
2375	if(tmp) {	2106	if (tmp)
2376	return freedir[i];	2107	return freedir[i];
2377	}	2108	}
		2109	}
2378	}	2110	}
2379	}	2111
2380	}
2381	return 0;	2112	return 0;
2382	}	2113	}
2383		2114
2384	/*	2115	/*
2385	* distance(object 1, object 2) will return the square of the	2116	* distance(object 1, object 2) will return the square of the
2386	* distance between the two given objects.	2117	* distance between the two given objects.
2387	*/	2118	*/
2388		2119	int
2389	int distance(const object *ob1, const object *ob2) {	2120	distance (const object *ob1, const object *ob2)
2390	int i;	2121	{
2391	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2122	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2392	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2393	return i;
2394	}	2123	}
2395		2124
2396	/*	2125	/*
2397	* find_dir_2(delta-x,delta-y) will return a direction in which	2126	* find_dir_2(delta-x,delta-y) will return a direction in which
2398	* an object which has subtracted the x and y coordinates of another	2127	* an object which has subtracted the x and y coordinates of another
2399	* object, needs to travel toward it.	2128	* object, needs to travel toward it.
2400	*/	2129	*/
2401		2130	int
2402	int find_dir_2(int x, int y) {	2131	find_dir_2 (int x, int y)
		2132	{
2403	int q;	2133	int q;
2404		2134
2405	if(y)	2135	if (y)
2406	q=x*100/y;	2136	q = x * 100 / y;
2407	else if (x)	2137	else if (x)
2408	q= -300*x;	2138	q = -300 * x;
2409	else	2139	else
2410	return 0;	2140	return 0;
2411		2141
2412	if(y>0) {	2142	if (y > 0)
		2143	{
2413	if(q < -242)	2144	if (q < -242)
2414	return 3 ;	2145	return 3;
2415	if (q < -41)	2146	if (q < -41)
2416	return 2 ;	2147	return 2;
2417	if (q < 41)	2148	if (q < 41)
2418	return 1 ;	2149	return 1;
2419	if (q < 242)	2150	if (q < 242)
2420	return 8 ;	2151	return 8;
2421	return 7 ;	2152	return 7;
2422	}	2153	}
2423		2154
2424	if (q < -242)	2155	if (q < -242)
2425	return 7 ;	2156	return 7;
2426	if (q < -41)	2157	if (q < -41)
2427	return 6 ;	2158	return 6;
2428	if (q < 41)	2159	if (q < 41)
2429	return 5 ;	2160	return 5;
2430	if (q < 242)	2161	if (q < 242)
2431	return 4 ;	2162	return 4;
2432		2163
2433	return 3 ;	2164	return 3;
2434	}
2435
2436	/*
2437	* absdir(int): Returns a number between 1 and 8, which represent
2438	* the "absolute" direction of a number (it actually takes care of
2439	* "overflow" in previous calculations of a direction).
2440	*/
2441
2442	int absdir(int d) {
2443	while(d<1) d+=8;
2444	while(d>8) d-=8;
2445	return d;
2446	}	2165	}
2447		2166
2448	/*	2167	/*
2449	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2168	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2450	* between two directions (which are expected to be absolute (see absdir())	2169	* between two directions (which are expected to be absolute (see absdir())
2451	*/	2170	*/
2452		2171	int
2453	int dirdiff(int dir1, int dir2) {	2172	dirdiff (int dir1, int dir2)
		2173	{
2454	int d;	2174	int d;
		2175
2455	d = abs(dir1 - dir2);	2176	d = abs (dir1 - dir2);
2456	if(d>4)	2177	if (d > 4)
2457	d = 8 - d;	2178	d = 8 - d;
		2179
2458	return d;	2180	return d;
2459	}	2181	}
2460		2182
2461	/* peterm:	2183	/* peterm:
2462	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2184	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2465	* This basically means that if direction is 15, then it could either go	2187	* This basically means that if direction is 15, then it could either go
2466	* direction 4, 14, or 16 to get back to where we are.	2188	* direction 4, 14, or 16 to get back to where we are.
2467	* Moved from spell_util.c to object.c with the other related direction	2189	* Moved from spell_util.c to object.c with the other related direction
2468	* functions.	2190	* functions.
2469	*/	2191	*/
2470
2471	int reduction_dir[SIZEOFFREE][3] = {	2192	int reduction_dir[SIZEOFFREE][3] = {
2472	{0,0,0}, /* 0 */	2193	{0, 0, 0}, /* 0 */
2473	{0,0,0}, /* 1 */	2194	{0, 0, 0}, /* 1 */
2474	{0,0,0}, /* 2 */	2195	{0, 0, 0}, /* 2 */
2475	{0,0,0}, /* 3 */	2196	{0, 0, 0}, /* 3 */
2476	{0,0,0}, /* 4 */	2197	{0, 0, 0}, /* 4 */
2477	{0,0,0}, /* 5 */	2198	{0, 0, 0}, /* 5 */
2478	{0,0,0}, /* 6 */	2199	{0, 0, 0}, /* 6 */
2479	{0,0,0}, /* 7 */	2200	{0, 0, 0}, /* 7 */
2480	{0,0,0}, /* 8 */	2201	{0, 0, 0}, /* 8 */
2481	{8,1,2}, /* 9 */	2202	{8, 1, 2}, /* 9 */
2482	{1,2,-1}, /* 10 */	2203	{1, 2, -1}, /* 10 */
2483	{2,10,12}, /* 11 */	2204	{2, 10, 12}, /* 11 */
2484	{2,3,-1}, /* 12 */	2205	{2, 3, -1}, /* 12 */
2485	{2,3,4}, /* 13 */	2206	{2, 3, 4}, /* 13 */
2486	{3,4,-1}, /* 14 */	2207	{3, 4, -1}, /* 14 */
2487	{4,14,16}, /* 15 */	2208	{4, 14, 16}, /* 15 */
2488	{5,4,-1}, /* 16 */	2209	{5, 4, -1}, /* 16 */
2489	{4,5,6}, /* 17 */	2210	{4, 5, 6}, /* 17 */
2490	{6,5,-1}, /* 18 */	2211	{6, 5, -1}, /* 18 */
2491	{6,20,18}, /* 19 */	2212	{6, 20, 18}, /* 19 */
2492	{7,6,-1}, /* 20 */	2213	{7, 6, -1}, /* 20 */
2493	{6,7,8}, /* 21 */	2214	{6, 7, 8}, /* 21 */
2494	{7,8,-1}, /* 22 */	2215	{7, 8, -1}, /* 22 */
2495	{8,22,24}, /* 23 */	2216	{8, 22, 24}, /* 23 */
2496	{8,1,-1}, /* 24 */	2217	{8, 1, -1}, /* 24 */
2497	{24,9,10}, /* 25 */	2218	{24, 9, 10}, /* 25 */
2498	{9,10,-1}, /* 26 */	2219	{9, 10, -1}, /* 26 */
2499	{10,11,-1}, /* 27 */	2220	{10, 11, -1}, /* 27 */
2500	{27,11,29}, /* 28 */	2221	{27, 11, 29}, /* 28 */
2501	{11,12,-1}, /* 29 */	2222	{11, 12, -1}, /* 29 */
2502	{12,13,-1}, /* 30 */	2223	{12, 13, -1}, /* 30 */
2503	{12,13,14}, /* 31 */	2224	{12, 13, 14}, /* 31 */
2504	{13,14,-1}, /* 32 */	2225	{13, 14, -1}, /* 32 */
2505	{14,15,-1}, /* 33 */	2226	{14, 15, -1}, /* 33 */
2506	{33,15,35}, /* 34 */	2227	{33, 15, 35}, /* 34 */
2507	{16,15,-1}, /* 35 */	2228	{16, 15, -1}, /* 35 */
2508	{17,16,-1}, /* 36 */	2229	{17, 16, -1}, /* 36 */
2509	{18,17,16}, /* 37 */	2230	{18, 17, 16}, /* 37 */
2510	{18,17,-1}, /* 38 */	2231	{18, 17, -1}, /* 38 */
2511	{18,19,-1}, /* 39 */	2232	{18, 19, -1}, /* 39 */
2512	{41,19,39}, /* 40 */	2233	{41, 19, 39}, /* 40 */
2513	{19,20,-1}, /* 41 */	2234	{19, 20, -1}, /* 41 */
2514	{20,21,-1}, /* 42 */	2235	{20, 21, -1}, /* 42 */
2515	{20,21,22}, /* 43 */	2236	{20, 21, 22}, /* 43 */
2516	{21,22,-1}, /* 44 */	2237	{21, 22, -1}, /* 44 */
2517	{23,22,-1}, /* 45 */	2238	{23, 22, -1}, /* 45 */
2518	{45,47,23}, /* 46 */	2239	{45, 47, 23}, /* 46 */
2519	{23,24,-1}, /* 47 */	2240	{23, 24, -1}, /* 47 */
2520	{24,9,-1}}; /* 48 */	2241	{24, 9, -1}
		2242	}; /* 48 */
2521		2243
2522	/* Recursive routine to step back and see if we can	2244	/* Recursive routine to step back and see if we can
2523	* find a path to that monster that we found. If not,	2245	* find a path to that monster that we found. If not,
2524	* we don't bother going toward it. Returns 1 if we	2246	* we don't bother going toward it. Returns 1 if we
2525	* can see a direct way to get it	2247	* can see a direct way to get it
2526	* Modified to be map tile aware -.MSW	2248	* Modified to be map tile aware -.MSW
2527	*/	2249	*/
2528		2250	int
2529
2530	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2251	can_see_monsterP (maptile *m, int x, int y, int dir)
		2252	{
2531	sint16 dx, dy;	2253	sint16 dx, dy;
2532	int mflags;	2254	int mflags;
2533		2255
		2256	if (dir < 0)
2534	if(dir<0) return 0; /* exit condition: invalid direction */	2257	return 0; /* exit condition: invalid direction */
2535		2258
2536	dx = x + freearr_x[dir];	2259	dx = x + freearr_x[dir];
2537	dy = y + freearr_y[dir];	2260	dy = y + freearr_y[dir];
2538		2261
2539	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2262	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2540		2263
2541	/* This functional arguably was incorrect before - it was	2264	/* This functional arguably was incorrect before - it was
2542	* checking for P_WALL - that was basically seeing if	2265	* checking for P_WALL - that was basically seeing if
2543	* we could move to the monster - this is being more	2266	* we could move to the monster - this is being more
2544	* literal on if we can see it. To know if we can actually	2267	* literal on if we can see it. To know if we can actually
2545	* move to the monster, we'd need the monster passed in or	2268	* move to the monster, we'd need the monster passed in or
2546	* at least its move type.	2269	* at least its move type.
2547	*/	2270	*/
2548	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2271	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2272	return 0;
2549		2273
2550	/* yes, can see. */	2274	/* yes, can see. */
2551	if(dir < 9) return 1;	2275	if (dir < 9)
		2276	return 1;
		2277
2552	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2278	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2553	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2279	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2554	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2280	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2555	}	2281	}
2556		2282
2557
2558
2559	/*	2283	/*
2560	* can_pick(picker, item): finds out if an object is possible to be	2284	* can_pick(picker, item): finds out if an object is possible to be
2561	* picked up by the picker. Returnes 1 if it can be	2285	* picked up by the picker. Returnes 1 if it can be
2562	* picked up, otherwise 0.	2286	* picked up, otherwise 0.
2563	*	2287	*
2564	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2288	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2565	* core dumps if they do.	2289	* core dumps if they do.
2566	*	2290	*
2567	* Add a check so we can't pick up invisible objects (0.93.8)	2291	* Add a check so we can't pick up invisible objects (0.93.8)
2568	*/	2292	*/
2569		2293	int
2570	int can_pick(const object *who, const object *item) {	2294	can_pick (const object *who, const object *item)
		2295	{
2571	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2296	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2572	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2297	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2573	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2298	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2574	(who->type==PLAYER||item->weight<who->weight/3));
2575	}	2299	}
2576
2577		2300
2578	/*	2301	/*
2579	* create clone from object to another	2302	* create clone from object to another
2580	*/	2303	*/
2581	object *object_create_clone (object *asrc) {	2304	object *
2582	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2305	object::deep_clone ()
		2306	{
		2307	assert (("deep_clone called on non-head object", is_head ()));
2583		2308
2584	if(!asrc) return NULL;	2309	object *dst = clone ();
2585	src = asrc;
2586	if(src->head)
2587	src = src->head;
2588		2310
2589	prev = NULL;	2311	object *prev = dst;
2590	for(part = src; part; part = part->more) {	2312	for (object *part = this->more; part; part = part->more)
2591	tmp = get_object();	2313	{
2592	copy_object(part,tmp);	2314	object *tmp = part->clone ();
2593	tmp->x -= src->x;
2594	tmp->y -= src->y;
2595	if(!part->head) {
2596	dst = tmp;
2597	tmp->head = NULL;
2598	} else {
2599	tmp->head = dst;	2315	tmp->head = dst;
2600	}
2601	tmp->more = NULL;
2602	if(prev)
2603	prev->more = tmp;	2316	prev->more = tmp;
2604	prev = tmp;	2317	prev = tmp;
2605	}	2318	}
2606	/*** copy inventory ***/	2319
2607	for(item = src->inv; item; item = item->below) {	2320	for (object *item = inv; item; item = item->below)
2608	(void) insert_ob_in_ob(object_create_clone(item),dst);	2321	insert_ob_in_ob (item->deep_clone (), dst);
2609	}
2610		2322
2611	return dst;	2323	return dst;
2612	}
2613
2614	/* return true if the object was destroyed, 0 otherwise */
2615	int was_destroyed (const object *op, tag_t old_tag)
2616	{
2617	/* checking for FLAG_FREED isn't necessary, but makes this function more
2618	* robust */
2619	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2620	}
2621
2622	/* GROS - Creates an object using a string representing its content. */
2623	/* Basically, we save the content of the string to a temp file, then call */
2624	/* load_object on it. I admit it is a highly inefficient way to make things, */
2625	/* but it was simple to make and allows reusing the load_object function. */
2626	/* Remember not to use load_object_str in a time-critical situation. */
2627	/* Also remember that multiparts objects are not supported for now. */
2628
2629	object* load_object_str(const char *obstr)
2630	{
2631	object *op;
2632	FILE *tempfile;
2633	char filename[MAX_BUF];
2634	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);
2635	tempfile=fopen(filename,"w");
2636	if (tempfile == NULL)
2637	{
2638	LOG(llevError,"Error - Unable to access load object temp file\n");
2639	return NULL;
2640	};
2641	fprintf(tempfile,obstr);
2642	fclose(tempfile);
2643
2644	op=get_object();
2645
2646	tempfile=fopen(filename,"r");
2647	if (tempfile == NULL)
2648	{
2649	LOG(llevError,"Error - Unable to read object temp file\n");
2650	return NULL;
2651	};
2652	load_object(tempfile,op,LO_NEWFILE,0);
2653	LOG(llevDebug," load str completed, object=%s\n",op->name);
2654	CLEAR_FLAG(op,FLAG_REMOVED);
2655	fclose(tempfile);
2656	return op;
2657	}	2324	}
2658		2325
2659	/* This returns the first object in who's inventory that	2326	/* This returns the first object in who's inventory that
2660	* has the same type and subtype match.	2327	* has the same type and subtype match.
2661	* returns NULL if no match.	2328	* returns NULL if no match.
2662	*/	2329	*/
		2330	object *
2663	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2331	find_obj_by_type_subtype (const object *who, int type, int subtype)
2664	{	2332	{
2665	object *tmp;
2666
2667	for (tmp=who->inv; tmp; tmp=tmp->below)	2333	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2668	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2334	if (tmp->type == type && tmp->subtype == subtype)
		2335	return tmp;
2669		2336
2670	return NULL;	2337	return 0;
2671	}	2338	}
2672		2339
2673	/* If ob has a field named key, return the link from the list,	2340	const shstr &
2674	* otherwise return NULL.	2341	object::kv_get (const shstr &key) const
2675	*	2342	{
2676	* key must be a passed in shared string - otherwise, this won't	2343	for (key_value *kv = key_values; kv; kv = kv->next)
2677	* do the desired thing.	2344	if (kv->key == key)
2678	*/	2345	return kv->value;
2679	key_value * get_ob_key_link(const object * ob, const char * key) {	2346
2680	key_value * link;	2347	return shstr_null;
		2348	}
		2349
		2350	void
		2351	object::kv_set (const shstr &key, const shstr &value)
		2352	{
		2353	for (key_value *kv = key_values; kv; kv = kv->next)
		2354	if (kv->key == key)
		2355	{
		2356	kv->value = value;
		2357	return;
		2358	}
		2359
		2360	key_value *kv = new key_value;
		2361
		2362	kv->next = key_values;
		2363	kv->key = key;
		2364	kv->value = value;
		2365
		2366	key_values = kv;
		2367	}
		2368
		2369	void
		2370	object::kv_del (const shstr &key)
		2371	{
		2372	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2373	if ((*kvp)->key == key)
		2374	{
		2375	key_value *kv = *kvp;
		2376	*kvp = (*kvp)->next;
		2377	delete kv;
		2378	return;
		2379	}
		2380	}
		2381
		2382	object::depth_iterator::depth_iterator (object *container)
		2383	: iterator_base (container)
		2384	{
		2385	while (item->inv)
		2386	item = item->inv;
		2387	}
		2388
		2389	void
		2390	object::depth_iterator::next ()
		2391	{
		2392	if (item->below)
2681		2393	{
2682	for (link = ob->key_values; link != NULL; link = link->next) {	2394	item = item->below;
2683	if (link->key == key) {	2395
2684	return link;	2396	while (item->inv)
		2397	item = item->inv;
		2398	}
		2399	else
		2400	item = item->env;
		2401	}
		2402
		2403	const char *
		2404	object::flag_desc (char *desc, int len) const
		2405	{
		2406	char *p = desc;
		2407	bool first = true;
		2408
		2409	*p = 0;
		2410
		2411	for (int i = 0; i < NUM_FLAGS; i++)
		2412	{
		2413	if (len <= 10) // magic constant!
		2414	{
		2415	snprintf (p, len, ",...");
		2416	break;
2685	}	2417	}
2686	}
2687
2688	return NULL;
2689	}
2690		2418
2691	/*	2419	if (flag [i])
2692	* Returns the value of op has an extra_field for key, or NULL.
2693	*
2694	* The argument doesn't need to be a shared string.
2695	*
2696	* The returned string is shared.
2697	*/
2698	const char * get_ob_key_value(const object * op, const char * const key) {
2699	key_value * link;
2700	const char * canonical_key;
2701
2702	canonical_key = find_string(key);
2703
2704	if (canonical_key == NULL) {
2705	/* 1. There being a field named key on any object
2706	* implies there'd be a shared string to find.
2707	* 2. Since there isn't, no object has this field.
2708	* 3. Therefore, *this* object doesn't have this field.
2709	*/	2420	{
2710	return NULL;	2421	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
2711	}	2422	len -= cnt;
2712		2423	p += cnt;
2713	/* This is copied from get_ob_key_link() above -	2424	first = false;
2714	* only 4 lines, and saves the function call overhead.
2715	*/
2716	for (link = op->key_values; link != NULL; link = link->next) {
2717	if (link->key == canonical_key) {
2718	return link->value;
2719	}	2425	}
2720	}	2426	}
		2427
		2428	return desc;
		2429	}
		2430
		2431	// return a suitable string describing an object in enough detail to find it
		2432	const char *
		2433	object::debug_desc (char *info) const
		2434	{
		2435	char flagdesc[512];
		2436	char info2[256 * 4];
		2437	char *p = info;
		2438
		2439	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
		2440	count,
		2441	uuid.c_str (),
		2442	&name,
		2443	title ? ",title:\"" : "",
		2444	title ? (const char *)title : "",
		2445	title ? "\"" : "",
		2446	flag_desc (flagdesc, 512), type);
		2447
		2448	if (!flag[FLAG_REMOVED] && env)
		2449	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2450
		2451	if (map)
		2452	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2453
		2454	return info;
		2455	}
		2456
		2457	const char *
		2458	object::debug_desc () const
		2459	{
		2460	static char info[3][256 * 4];
		2461	static int info_idx;
		2462
		2463	return debug_desc (info [++info_idx % 3]);
		2464	}
		2465
		2466	struct region *
		2467	object::region () const
		2468	{
		2469	return map ? map->region (x, y)
		2470	: region::default_region ();
		2471	}
		2472
		2473	const materialtype_t *
		2474	object::dominant_material () const
		2475	{
		2476	if (materialtype_t *mt = name_to_material (materialname))
		2477	return mt;
		2478
		2479	return name_to_material (shstr_unknown);
		2480	}
		2481
		2482	void
		2483	object::open_container (object *new_container)
		2484	{
		2485	if (container == new_container)
2721	return NULL;	2486	return;
2722	}
2723		2487
		2488	object *old_container = container;
2724		2489
2725	/*	2490	if (old_container)
2726	* Updates the canonical_key in op to value.
2727	*
2728	* canonical_key is a shared string (value doesn't have to be).
2729	*
2730	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2731	* keys.
2732	*
2733	* Returns TRUE on success.
2734	*/
2735	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {
2736	key_value * field = NULL, *last=NULL;
2737		2491	{
2738	for (field=op->key_values; field != NULL; field=field->next) {	2492	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
2739	if (field->key != canonical_key) {	2493	return;
2740	last = field;	2494
2741	continue;	2495	#if 0
2742	}	2496	// remove the "Close old_container" object.
2743		2497	if (object *closer = old_container->inv)
2744	if (field->value) FREE_AND_CLEAR_STR(field->value);	2498	if (closer->type == CLOSE_CON)
2745	if (value)	2499	closer->destroy ();
2746	field->value = add_string(value);	2500	#endif
2747	else {	2501
2748	/* Basically, if the archetype has this key set,	2502	// make sure the container is available
2749	* we need to store the null value so when we save	2503	esrv_send_item (this, old_container);
2750	* it, we save the empty value so that when we load,	2504
2751	* we get this value back again.	2505	old_container->flag [FLAG_APPLIED] = false;
2752	*/	2506	container = 0;
2753	if (get_ob_key_link(&op->arch->clone, canonical_key))	2507
2754	field->value = NULL;	2508	// client needs item update to make it work, client bug requires this to be separate
2755	else {	2509	esrv_update_item (UPD_FLAGS, this, old_container);
2756	/* Delete this link */	2510
2757	if (field->key) FREE_AND_CLEAR_STR(field->key);	2511	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
2758	if (field->value) FREE_AND_CLEAR_STR(field->value);	2512	play_sound (sound_find ("chest_close"));
2759	if (last) last->next = field->next;
2760	else op->key_values = field->next;
2761	free(field);
2762	}	2513	}
2763	}
2764	return TRUE;
2765	}
2766	/* IF we get here, key doesn't exist */
2767		2514
2768	/* No field, we'll have to add it. */	2515	if (new_container)
2769		2516	{
2770	if (!add_key) {	2517	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
2771	return FALSE;	2518	return;
2772	}	2519
2773	/* There isn't any good reason to store a null	2520	// TODO: this does not seem to serve any purpose anymore?
2774	* value in the key/value list. If the archetype has	2521	#if 0
2775	* this key, then we should also have it, so shouldn't	2522	// insert the "Close Container" object.
2776	* be here. If user wants to store empty strings,	2523	if (archetype *closer = new_container->other_arch)
2777	* should pass in ""	2524	{
2778	*/	2525	object *closer = arch_to_object (new_container->other_arch);
2779	if (value == NULL) return TRUE;	2526	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2527	new_container->insert (closer);
		2528	}
		2529	#endif
		2530
		2531	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2532
		2533	// make sure the container is available, client bug requires this to be separate
		2534	esrv_send_item (this, new_container);
		2535
		2536	new_container->flag [FLAG_APPLIED] = true;
		2537	container = new_container;
		2538
		2539	// client needs flag change
		2540	esrv_update_item (UPD_FLAGS, this, new_container);
		2541	esrv_send_inventory (this, new_container);
		2542	play_sound (sound_find ("chest_open"));
2780		2543	}
2781	field = (key_value *) malloc(sizeof(key_value));	2544	// else if (!old_container->env && contr && contr->ns)
		2545	// contr->ns->floorbox_reset ();
		2546	}
		2547
		2548	object *
		2549	object::force_find (const shstr name)
		2550	{
		2551	/* cycle through his inventory to look for the MARK we want to
		2552	* place
		2553	*/
		2554	for (object *tmp = inv; tmp; tmp = tmp->below)
		2555	if (tmp->type == FORCE && tmp->slaying == name)
		2556	return splay (tmp);
		2557
		2558	return 0;
		2559	}
		2560
		2561	object *
		2562	object::force_add (const shstr name, int duration)
		2563	{
		2564	if (object *force = force_find (name))
		2565	force->destroy ();
		2566
		2567	object *force = get_archetype (FORCE_NAME);
		2568
		2569	force->slaying = name;
		2570	force->stats.food = 1;
		2571	force->speed_left = -1.f;
		2572
		2573	force->set_speed (duration ? 1.f / duration : 0.f);
		2574	force->flag [FLAG_IS_USED_UP] = true;
		2575	force->flag [FLAG_APPLIED] = true;
		2576
		2577	return insert (force);
		2578	}
		2579
		2580	void
		2581	object::play_sound (faceidx sound)
		2582	{
		2583	if (!sound)
		2584	return;
		2585
		2586	if (flag [FLAG_REMOVED])
		2587	return;
		2588
		2589	if (env)
2782		2590	{
2783	field->key = add_refcount(canonical_key);	2591	if (object *pl = in_player ())
2784	field->value = add_string(value);	2592	pl->contr->play_sound (sound);
2785	/* Usual prepend-addition. */
2786	field->next = op->key_values;
2787	op->key_values = field;
2788		2593	}
		2594	else
		2595	map->play_sound (sound, x, y);
		2596	}
		2597
		2598	void
		2599	object::make_noise ()
		2600	{
		2601	// we do not model noise in the map, so instead put
		2602	// a temporary light into the noise source
		2603	// could use the map instead, but that's less reliable for our
		2604	// goal, which is to make invisibility a bit harder to exploit
		2605
		2606	// currently only works sensibly for players
		2607	if (!is_player ())
2789	return TRUE;	2608	return;
2790	}
2791		2609
2792	/*	2610	// find old force, or create new one
2793	* Updates the key in op to value.	2611	object *force = force_find (shstr_noise_force);
2794	*	2612
2795	* If add_key is FALSE, this will only update existing keys,	2613	if (force)
2796	* and not add new ones.	2614	force->speed_left = -1.f; // patch old speed up
2797	* In general, should be little reason FALSE is ever passed in for add_key	2615	else
2798	*
2799	* Returns TRUE on success.
2800	*/
2801	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {
2802	const char * canonical_key = NULL;
2803	int floating_ref = FALSE;
2804	int ret;
2805		2616	{
2806	/* HACK This mess is to make sure set_ob_value() passes a shared string	2617	force = archetype::get (shstr_noise_force);
2807	* to get_ob_key_link(), without leaving a leaked refcount.	2618
2808	*/	2619	force->slaying = shstr_noise_force;
		2620	force->stats.food = 1;
		2621	force->speed_left = -1.f;
		2622
		2623	force->set_speed (1.f / 4.f);
		2624	force->flag [FLAG_IS_USED_UP] = true;
		2625	force->flag [FLAG_APPLIED] = true;
		2626
		2627	insert (force);
2809		2628	}
2810	canonical_key = find_string(key);
2811	if (canonical_key == NULL) {
2812	canonical_key = add_string(key);
2813	floating_ref = TRUE;
2814	}
2815
2816	ret = set_ob_key_value_s(op, canonical_key, value, add_key);
2817
2818	if (floating_ref) {
2819	free_string(canonical_key);
2820	}
2821
2822	return ret;
2823	}	2629	}
		2630

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines