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Comparing deliantra/server/common/object.C (file contents):
Revision 1.15 by root, Mon Sep 4 13:55:54 2006 UTC vs.
Revision 1.220 by root, Thu Apr 24 00:30:52 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 1.15 2006/09/04 13:55:54 root Exp $";	3	*
4	*/	4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5
6	/*
7	CrossFire, A Multiplayer game for X-windows
8
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
11		7	*
12	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
13	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
14	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
15	(at your option) any later version.	11	* (at your option) any later version.
16		12	*
17	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
18	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
19	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20	GNU General Public License for more details.	16	* GNU General Public License for more details.
21		17	*
22	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
25		21	* The authors can be reached via e-mail to <support@deliantra.net>
26	The authors can be reached via e-mail at crossfire-devel@real-time.com
27	*/	22	*/
28		23
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying
31	variable. */
32	#include <global.h>	24	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	25	#include <stdio.h>
35	#include <sys/types.h>	26	#include <sys/types.h>
36	#include <sys/uio.h>	27	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	28	#include <object.h>
39	#include <funcpoint.h>	29	#include <sproto.h>
40	#include <skills.h>
41	#include <loader.h>	30	#include <loader.h>
42	int nrofallocobjects = 0;
43		31
44	object *objects; /* Pointer to the list of used objects */	32	#include <bitset>
45	object *active_objects; /* List of active objects that need to be processed */
46		33
		34	UUID UUID::cur;
		35	static uint64_t seq_next_save;
		36	static const uint64 UUID_GAP = 1<<19;
		37
		38	objectvec objects;
		39	activevec actives;
		40
47	short freearr_x[SIZEOFFREE]=	41	short freearr_x[SIZEOFFREE] = {
48	{0,0,1,1,1,0,-1,-1,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,-2,-2,-2,-1,	42	0,
		43	0, 1, 1, 1, 0, -1, -1, -1,
		44	0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
49	0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3,-3,-3,-3,-3,-2,-1};	45	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
		46	};
50	short freearr_y[SIZEOFFREE]=	47	short freearr_y[SIZEOFFREE] = {
51	{0,-1,-1,0,1,1,1,0,-1,-2,-2,-2,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,	48	0,
		49	-1, -1, 0, 1, 1, 1, 0, -1,
		50	-2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
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};	51	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
		52	};
53	int maxfree[SIZEOFFREE]=	53	int maxfree[SIZEOFFREE] = {
54	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,	54	0,
		55	9, 10, 13, 14, 17, 18, 21, 22,
		56	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
55	48,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49};	57	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		58	};
56	int freedir[SIZEOFFREE]= {	59	int freedir[SIZEOFFREE] = {
57	0,1,2,3,4,5,6,7,8,1,2,2,2,3,4,4,4,5,6,6,6,7,8,8,8,	60	0,
58	1,2,2,2,2,2,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,8};	61	1, 2, 3, 4, 5, 6, 7, 8,
		62	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
		63	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		64	};
59		65
		66	static void
		67	write_uuid (uval64 skip, bool sync)
		68	{
		69	CALL_BEGIN (2);
		70	CALL_ARG_SV (newSVval64 (skip));
		71	CALL_ARG_SV (boolSV (sync));
		72	CALL_CALL ("cf::write_uuid", G_DISCARD);
		73	CALL_END;
		74	}
		75
		76	static void
		77	read_uuid (void)
		78	{
		79	char filename[MAX_BUF];
		80
		81	sprintf (filename, "%s/uuid", settings.localdir);
		82
		83	seq_next_save = 0;
		84
		85	FILE *fp;
		86
		87	if (!(fp = fopen (filename, "r")))
		88	{
		89	if (errno == ENOENT)
		90	{
		91	LOG (llevInfo, "RESET uid to 1\n");
		92	UUID::cur.seq = 0;
		93	write_uuid (UUID_GAP, true);
		94	return;
		95	}
		96
		97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		98	_exit (1);
		99	}
		100
		101	UUID::BUF buf;
		102	buf[0] = 0;
		103	fgets (buf, sizeof (buf), fp);
		104
		105	if (!UUID::cur.parse (buf))
		106	{
		107	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
		108	_exit (1);
		109	}
		110
		111	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
		112
		113	write_uuid (UUID_GAP, true);
		114	fclose (fp);
		115	}
		116
		117	UUID
		118	UUID::gen ()
		119	{
		120	UUID uid;
		121
		122	uid.seq = ++cur.seq;
		123
		124	if (expect_false (cur.seq >= seq_next_save))
		125	{
		126	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		127	write_uuid (UUID_GAP, false);
		128	}
		129
		130
		131	return uid;
		132	}
		133
		134	void
		135	UUID::init ()
		136	{
		137	read_uuid ();
		138	}
60		139
61	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	140	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		141	static bool
62	static int compare_ob_value_lists_one(const object * wants, const object * has) {	142	compare_ob_value_lists_one (const object *wants, const object *has)
		143	{
63	key_value * wants_field;	144	key_value *wants_field;
64		145
65	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	146	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
66	* objects with lists are rare, and lists stay short. If not, use a	147	* objects with lists are rare, and lists stay short. If not, use a
67	* different structure or at least keep the lists sorted...	148	* different structure or at least keep the lists sorted...
68	*/	149	*/
69		150
70	/* For each field in wants, */	151	/* For each field in wants, */
71	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	152	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
		153	{
72	key_value * has_field;	154	key_value *has_field;
73		155
74	/* Look for a field in has with the same key. */	156	/* Look for a field in has with the same key. */
75	has_field = get_ob_key_link(has, wants_field->key);	157	has_field = get_ob_key_link (has, wants_field->key);
76		158
77	if (has_field == NULL) {	159	if (!has_field)
78	/* No field with that name. */	160	return 0; /* No field with that name. */
79	return FALSE;	161
80	}
81
82	/* Found the matching field. */	162	/* Found the matching field. */
83	if (has_field->value != wants_field->value) {	163	if (has_field->value != wants_field->value)
84	/* Values don't match, so this half of the comparison is false. */	164	return 0; /* Values don't match, so this half of the comparison is false. */
85	return FALSE;	165
86	}
87
88	/* If we get here, we found a match. Now for the next field in wants. */	166	/* If we get here, we found a match. Now for the next field in wants. */
89	}
90		167	}
		168
91	/* If we get here, every field in wants has a matching field in has. */	169	/* If we get here, every field in wants has a matching field in has. */
92	return TRUE;	170	return 1;
93	}	171	}
94		172
95	/* Returns TRUE if ob1 has the same key_values as ob2. */	173	/* Returns TRUE if ob1 has the same key_values as ob2. */
		174	static bool
96	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	175	compare_ob_value_lists (const object *ob1, const object *ob2)
		176	{
97	/* However, there may be fields in has which aren't partnered in wants,	177	/* However, there may be fields in has which aren't partnered in wants,
98	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
99	*/	179	*/
100	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
101	}	181	}
102		182
103	/* Function examines the 2 objects given to it, and returns true if	183	/* Function examines the 2 objects given to it, and returns true if
104	* they can be merged together.	184	* they can be merged together.
105	*	185	*
106	* Note that this function appears a lot longer than the macro it	186	* Note that this function appears a lot longer than the macro it
107	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
108	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
109	*	189	*
110	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
111	*	191	*
112	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
113	* check weight	193	* check weight
114	*/	194	*/
115		195	bool object::can_merge_slow (object *ob1, object *ob2)
116	int CAN_MERGE(object *ob1, object *ob2) {	196	{
117
118	/* A couple quicksanity checks */	197	/* A couple quicksanity checks */
119	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	198	if (ob1 == ob2
		199	|| ob1->type != ob2->type
		200	|| ob1->speed != ob2->speed
		201	|| ob1->value != ob2->value
		202	|| ob1->name != ob2->name)
		203	return 0;
120		204
121	if (ob1->speed != ob2->speed) return 0;	205	/* Do not merge objects if nrof would overflow. First part checks
		206	* for unsigned overflow (2c), second part checks whether the result
		207	* would fit into a 32 bit signed int, which is often used to hold
		208	* nrof values.
		209	*/
		210	if (~ob1->nrof < ob2->nrof || ob1->nrof + ob2->nrof > (1UL << 31))
		211	return 0;
		212
		213	/* If the objects have been identified, set the BEEN_APPLIED flag.
		214	* This is to the comparison of the flags below will be OK. We
		215	* just can't ignore the been applied or identified flags, as they
		216	* are not equal - just if it has been identified, the been_applied
		217	* flags lose any meaning.
		218	*/
		219	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
		220	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
		221
		222	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
		223	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
		224
		225	if (ob1->arch->name != ob2->arch->name
		226	|| ob1->name != ob2->name
		227	|| ob1->title != ob2->title
		228	|| ob1->msg != ob2->msg
		229	|| ob1->weight != ob2->weight
		230	|| ob1->attacktype != ob2->attacktype
		231	|| ob1->magic != ob2->magic
		232	|| ob1->slaying != ob2->slaying
		233	|| ob1->skill != ob2->skill
		234	|| ob1->value != ob2->value
		235	|| ob1->animation_id != ob2->animation_id
		236	|| ob1->client_type != ob2->client_type
		237	|| ob1->materialname != ob2->materialname
		238	|| ob1->lore != ob2->lore
		239	|| ob1->subtype != ob2->subtype
		240	|| ob1->move_type != ob2->move_type
		241	|| ob1->move_block != ob2->move_block
		242	|| ob1->move_allow != ob2->move_allow
		243	|| ob1->move_on != ob2->move_on
		244	|| ob1->move_off != ob2->move_off
		245	|| ob1->move_slow != ob2->move_slow
		246	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		247	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		248	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
		249	return 0;
		250
		251	if ((ob1->flag ^ ob2->flag)
		252	.reset (FLAG_INV_LOCKED)
		253	.reset (FLAG_CLIENT_SENT)
		254	.reset (FLAG_REMOVED)
		255	.any ())
		256	return 0;
		257
		258	/* This is really a spellbook check - we should in general
		259	* not merge objects with real inventories, as splitting them
		260	* is hard.
		261	*/
		262	if (ob1->inv || ob2->inv)
		263	{
		264	if (!(ob1->inv && ob2->inv))
		265	return 0; /* inventories differ in length */
		266
		267	if (ob1->inv->below || ob2->inv->below)
		268	return 0; /* more than one object in inv */
		269
		270	if (!object::can_merge (ob1->inv, ob2->inv))
		271	return 0; /* inventory objects differ */
		272
		273	/* inventory ok - still need to check rest of this object to see
		274	* if it is valid.
		275	*/
		276	}
		277
		278	/* Don't merge objects that are applied. With the new 'body' code,
		279	* it is possible for most any character to have more than one of
		280	* some items equipped, and we don't want those to merge.
		281	*/
		282	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
		283	return 0;
		284
122	/* Note sure why the following is the case - either the object has to	285	/* Note sure why the following is the case - either the object has to
123	* be animated or have a very low speed. Is this an attempted monster	286	* be animated or have a very low speed. Is this an attempted monster
124	* check?	287	* check?
125	*/	288	*/
126	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)	289	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
		290	return 0;
		291
		292	switch (ob1->type)
		293	{
		294	case SCROLL:
		295	if (ob1->level != ob2->level)
		296	return 0;
		297	break;
		298	}
		299
		300	if (ob1->key_values || ob2->key_values)
		301	{
		302	/* At least one of these has key_values. */
		303	if ((!ob1->key_values) != (!ob2->key_values))
		304	return 0; /* One has fields, but the other one doesn't. */
		305
		306	if (!compare_ob_value_lists (ob1, ob2))
127	return 0;	307	return 0;
		308	}
128		309
129	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	310	if (ob1->self || ob2->self)
130	* value could not be stored in a sint32 (which unfortunately sometimes is
131	* used to store nrof).
132	*/
133	if (ob1->nrof+ob2->nrof >= 1UL<<31)
134	return 0;
135
136	/* This is really a spellbook check - really, we should
137	* check all objects in the inventory.
138	*/
139	if (ob1->inv || ob2->inv) {
140	/* if one object has inventory but the other doesn't, not equiv */
141	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) return 0;
142
143	/* Now check to see if the two inventory objects could merge */
144	if (!CAN_MERGE(ob1->inv, ob2->inv)) return 0;
145
146	/* inventory ok - still need to check rest of this object to see
147	* if it is valid.
148	*/
149	}	311	{
		312	ob1->optimise ();
		313	ob2->optimise ();
150		314
151	/* If the objects have been identified, set the BEEN_APPLIED flag.	315	if (ob1->self || ob2->self)
152	* This is to the comparison of the flags below will be OK. We
153	* just can't ignore the been applied or identified flags, as they
154	* are not equal - just if it has been identified, the been_applied
155	* flags lose any meaning.
156	*/
157	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))
158	SET_FLAG(ob1, FLAG_BEEN_APPLIED);
159
160	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))
161	SET_FLAG(ob2, FLAG_BEEN_APPLIED);
162
163
164	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
165	* being locked in inventory should prevent merging.
166	* 0x4 in flags3 is CLIENT_SENT
167	*/
168	if ((ob1->arch != ob2->arch) ||
169	(ob1->flags[0] != ob2->flags[0]) ||
170	(ob1->flags[1] != ob2->flags[1]) ||
171	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||
172	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
173	(ob1->name != ob2->name) ||
174	(ob1->title != ob2->title) ||
175	(ob1->msg != ob2->msg) ||
176	(ob1->weight != ob2->weight) ||
177	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||
178	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||
179	(ob1->attacktype != ob2->attacktype) ||
180	(ob1->magic != ob2->magic) ||
181	(ob1->slaying != ob2->slaying) ||
182	(ob1->skill != ob2->skill) ||
183	(ob1->value != ob2->value) ||
184	(ob1->animation_id != ob2->animation_id) ||
185	(ob1->client_type != ob2->client_type) ||
186	(ob1->materialname != ob2->materialname) ||
187	(ob1->lore != ob2->lore) ||
188	(ob1->subtype != ob2->subtype) ||
189	(ob1->move_type != ob2->move_type) ||
190	(ob1->move_block != ob2->move_block) ||
191	(ob1->move_allow != ob2->move_allow) ||
192	(ob1->move_on != ob2->move_on) ||
193	(ob1->move_off != ob2->move_off) ||
194	(ob1->move_slow != ob2->move_slow) ||
195	(ob1->move_slow_penalty != ob2->move_slow_penalty)
196	)	316	{
		317	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		318	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		319
		320	if (k1 != k2)
197	return 0;	321	return 0;
198		322
199	/* Don't merge objects that are applied. With the new 'body' code,	323	if (k1 == 0)
200	* it is possible for most any character to have more than one of
201	* some items equipped, and we don't want those to merge.
202	*/
203	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))
204	return 0;
205
206	switch (ob1->type) {
207	case SCROLL:
208	if (ob1->level != ob2->level) return 0;
209	break;
210
211	}
212	if (ob1->key_values != NULL || ob2->key_values != NULL) {
213	/* At least one of these has key_values. */
214	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {
215	/* One has fields, but the other one doesn't. */
216	return 0;	324	return 1;
217	} else if (!compare_ob_value_lists(ob1, ob2)) {	325
		326	if (!cfperl_can_merge (ob1, ob2))
218	return 0;	327	return 0;
219	}	328	}
220	}	329	}
221		330
222	/* Everything passes, must be OK. */	331	/* Everything passes, must be OK. */
223	return 1;	332	return 1;
224	}	333	}
225		334
		335	// find player who can see this object
		336	object *
		337	object::visible_to () const
		338	{
		339	if (client_visible () && !flag [FLAG_REMOVED])
		340	{
		341	// see if we are in a container of sorts
		342	if (env)
		343	{
		344	// the player inventory itself is always visible
		345	if (env->type == PLAYER)
		346	return env;
		347
		348	// else a player could have our env open
		349	object *envest = env->outer_env ();
		350
		351	// the player itself is always on a map, so we will find him here
		352	// even if our inv is in a player.
		353	if (envest->is_on_map ())
		354	if (object *pl = envest->ms ().player ())
		355	if (pl->container == env)
		356	return pl;
		357	}
		358	else
		359	{
		360	// maybe there is a player standing on the same mapspace
		361	// this will catch the case where "this" is a player
		362	if (object *pl = ms ().player ())
		363	if (!pl->container || this == pl->container)
		364	return pl;
		365	}
		366	}
		367
		368	return 0;
		369	}
		370
		371	// adjust weight per container type ("of holding")
		372	static sint32
		373	weight_adjust (object *op, sint32 weight)
		374	{
		375	return op->type == CONTAINER
		376	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		377	: weight;
		378	}
		379
226	/*	380	/*
		381	* adjust_weight(object, weight) adds the specified weight to an object,
		382	* and also updates how much the environment(s) is/are carrying.
		383	*/
		384	static void
		385	adjust_weight (object *op, sint32 weight)
		386	{
		387	while (op)
		388	{
		389	weight = weight_adjust (op, weight);
		390
		391	if (!weight)
		392	return;
		393
		394	op->carrying += weight;
		395
		396	if (object *pl = op->visible_to ())
		397	if (pl != op) // player is handled lazily
		398	esrv_update_item (UPD_WEIGHT, pl, op);
		399
		400	op = op->env;
		401	}
		402	}
		403
		404	/*
227	* sum_weight() is a recursive function which calculates the weight	405	* this is a recursive function which calculates the weight
228	* an object is carrying. It goes through in figures out how much	406	* an object is carrying. It goes through op and figures out how much
229	* containers are carrying, and sums it up.	407	* containers are carrying, and sums it up.
230	*/	408	*/
231	signed long sum_weight(object *op) {	409	void
232	signed long sum;	410	object::update_weight ()
233	object *inv;	411	{
234	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	412	sint32 sum = 0;
		413
		414	for (object *op = inv; op; op = op->below)
		415	{
235	if (inv->inv)	416	if (op->inv)
236	sum_weight(inv);	417	op->update_weight ();
237	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	418
		419	sum += op->total_weight ();
238	}	420	}
239	if (op->type == CONTAINER && op->stats.Str)	421
240	sum = (sum * (100 - op->stats.Str))/100;	422	sum = weight_adjust (this, sum);
241	if(op->carrying != sum)	423
		424	if (sum != carrying)
		425	{
242	op->carrying = sum;	426	carrying = sum;
243	return sum;
244	}
245		427
		428	if (object *pl = visible_to ())
		429	if (pl != this) // player is handled lazily
		430	esrv_update_item (UPD_WEIGHT, pl, this);
		431	}
		432	}
		433
246	/**	434	/*
247	* Return the outermost environment object for a given object.	435	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
248	*/	436	*/
249		437	char *
250	object *object_get_env_recursive (object *op) {
251	while (op->env != NULL)
252	op = op->env;
253	return op;
254	}
255
256	/*
257	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
258	* a better check. We basically keeping traversing up until we can't
259	* or find a player.
260	*/
261
262	object *is_player_inv (object *op) {
263	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
264	if (op->env==op)
265	op->env = NULL;
266	return op;
267	}
268
269	/*
270	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
271	* Some error messages.
272	* The result of the dump is stored in the static global errmsg array.
273	*/
274
275	void dump_object2(object *op) {
276	errmsg[0] = 0;
277	return;
278	//TODO//D#d#
279	#if 0
280	char *cp;
281	/* object *tmp;*/
282
283	if(op->arch!=NULL) {
284	strcat(errmsg,"arch ");
285	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
286	strcat(errmsg,"\n");
287	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
288	strcat(errmsg,cp);
289	#if 0
290	/* Don't dump player diffs - they are too long, mostly meaningless, and
291	* will overflow the buffer.
292	* Changed so that we don't dump inventory either. This may
293	* also overflow the buffer.
294	*/
295	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
296	strcat(errmsg,cp);
297	for (tmp=op->inv; tmp; tmp=tmp->below)
298	dump_object2(tmp);
299	#endif
300	strcat(errmsg,"end\n");
301	} else {
302	strcat(errmsg,"Object ");
303	if (op->name==NULL) strcat(errmsg, "(null)");
304	else strcat(errmsg,op->name);
305	strcat(errmsg,"\n");
306	#if 0
307	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
308	strcat(errmsg,cp);
309	for (tmp=op->inv; tmp; tmp=tmp->below)
310	dump_object2(tmp);
311	#endif
312	strcat(errmsg,"end\n");
313	}
314	#endif
315	}
316
317	/*
318	* Dumps an object. Returns output in the static global errmsg array.
319	*/
320
321	void dump_object(object *op) {	438	dump_object (object *op)
322	if(op==NULL) {	439	{
323	strcpy(errmsg,"[NULL pointer]");	440	if (!op)
324	return;	441	return strdup ("[NULLOBJ]");
325	}
326	errmsg[0]='\0';
327	dump_object2(op);
328	}
329		442
330	void dump_all_objects(void) {	443	object_freezer freezer;
331	object *op;	444	op->write (freezer);
332	for(op=objects;op!=NULL;op=op->next) {	445	return freezer.as_string ();
333	dump_object(op);
334	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
335	}
336	}	446	}
337		447
338	/*	448	/*
339	* get_nearest_part(multi-object, object 2) returns the part of the	449	* get_nearest_part(multi-object, object 2) returns the part of the
340	* multi-object 1 which is closest to the second object.	450	* multi-object 1 which is closest to the second object.
341	* If it's not a multi-object, it is returned.	451	* If it's not a multi-object, it is returned.
342	*/	452	*/
343		453	object *
344	object *get_nearest_part(object *op, const object *pl) {	454	get_nearest_part (object *op, const object *pl)
		455	{
345	object *tmp,*closest;	456	object *tmp, *closest;
346	int last_dist,i;	457	int last_dist, i;
		458
347	if(op->more==NULL)	459	if (!op->more)
348	return op;	460	return op;
		461
349	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	462	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		463	tmp;
		464	tmp = tmp->more)
350	if((i=distance(tmp,pl))<last_dist)	465	if ((i = distance (tmp, pl)) < last_dist)
351	closest=tmp,last_dist=i;	466	closest = tmp, last_dist = i;
		467
352	return closest;	468	return closest;
353	}	469	}
354		470
355	/*	471	/*
356	* Returns the object which has the count-variable equal to the argument.	472	* Returns the object which has the count-variable equal to the argument.
		473	* VERRRY slow.
357	*/	474	*/
358		475	object *
359	object *find_object(tag_t i) {	476	find_object (tag_t i)
360	object *op;	477	{
361	for(op=objects;op!=NULL;op=op->next)	478	for_all_objects (op)
362	if(op->count==i)	479	if (op->count == i)
363	break;
364	return op;	480	return op;
		481
		482	return 0;
365	}	483	}
366		484
367	/*	485	/*
368	* Returns the first object which has a name equal to the argument.	486	* Returns the first object which has a name equal to the argument.
369	* Used only by the patch command, but not all that useful.	487	* Used only by the patch command, but not all that useful.
370	* Enables features like "patch <name-of-other-player> food 999"	488	* Enables features like "patch <name-of-other-player> food 999"
371	*/	489	*/
372		490	object *
373	object *find_object_name(const char *str) {	491	find_object_name (const char *str)
374	const char *name = shstr::find (str);	492	{
		493	shstr_cmp str_ (str);
375	object *op;	494	object *op;
376	for(op=objects;op!=NULL;op=op->next)	495
		496	for_all_objects (op)
377	if(&op->name == name)	497	if (op->name == str_)
378	break;	498	break;
379		499
380	return op;	500	return op;
381	}
382
383	void free_all_object_data ()
384	{
385	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
386	}
387
388	/*
389	* Returns the object which this object marks as being the owner.
390	* A id-scheme is used to avoid pointing to objects which have been
391	* freed and are now reused. If this is detected, the owner is
392	* set to NULL, and NULL is returned.
393	* Changed 2004-02-12 - if the player is setting at the play again
394	* prompt, he is removed, and we don't want to treat him as an owner of
395	* anything, so check removed flag. I don't expect that this should break
396	* anything - once an object is removed, it is basically dead anyways.
397	*/
398
399	object *get_owner(object *op) {
400	if(op->owner==NULL)
401	return NULL;
402
403	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
404	op->owner->count==op->ownercount)
405	return op->owner;
406
407	op->owner=NULL;
408	op->ownercount=0;
409	return NULL;
410	}
411
412	void clear_owner(object *op)
413	{
414	if (!op) return;
415
416	if (op->owner && op->ownercount == op->owner->count)
417	op->owner->refcount--;
418
419	op->owner = NULL;
420	op->ownercount = 0;
421	}	501	}
422		502
423	/*	503	/*
424	* Sets the owner and sets the skill and exp pointers to owner's current	504	* Sets the owner and sets the skill and exp pointers to owner's current
425	* skill and experience objects.	505	* skill and experience objects.
		506	* ACTUALLY NO! investigate! TODO
426	*/	507	*/
427	void set_owner (object *op, object *owner)	508	void
		509	object::set_owner (object *owner)
428	{	510	{
429	if(owner==NULL||op==NULL)	511	// allow objects which own objects
		512	if (owner)
		513	while (owner->owner)
		514	owner = owner->owner;
		515
		516	if (flag [FLAG_FREED])
		517	{
		518	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
430	return;	519	return;
		520	}
431		521
432	/* next line added to allow objects which own objects */
433	/* Add a check for ownercounts in here, as I got into an endless loop
434	* with the fireball owning a poison cloud which then owned the
435	* fireball. I believe that was caused by one of the objects getting
436	* freed and then another object replacing it. Since the ownercounts
437	* didn't match, this check is valid and I believe that cause is valid.
438	*/
439	while (owner->owner && owner!=owner->owner &&
440	owner->ownercount==owner->owner->count) owner=owner->owner;
441
442	/* IF the owner still has an owner, we did not resolve to a final owner.
443	* so lets not add to that.
444	*/
445	if (owner->owner) return;
446
447	op->owner=owner;	522	this->owner = owner;
448
449	op->ownercount=owner->count;
450	owner->refcount++;
451
452	}	523	}
453		524
454	/* Set the owner to clone's current owner and set the skill and experience	525	int
455	* objects to clone's objects (typically those objects that where the owner's	526	object::slottype () const
456	* current skill and experience objects at the time when clone's owner was
457	* set - not the owner's current skill and experience objects).
458	*
459	* Use this function if player created an object (e.g. fire bullet, swarm
460	* spell), and this object creates further objects whose kills should be
461	* accounted for the player's original skill, even if player has changed
462	* skills meanwhile.
463	*/
464	void copy_owner (object *op, object *clone)
465	{	527	{
466	object *owner = get_owner (clone);	528	if (type == SKILL)
467	if (owner == NULL) {	529	{
468	/* players don't have owners - they own themselves. Update	530	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
469	* as appropriate.	531	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		532	}
		533	else
		534	{
		535	if (slot [body_combat].info) return slot_combat;
		536	if (slot [body_range ].info) return slot_ranged;
		537	}
		538
		539	return slot_none;
		540	}
		541
		542	bool
		543	object::change_weapon (object *ob)
		544	{
		545	if (current_weapon == ob)
		546	return true;
		547
		548	if (chosen_skill)
		549	chosen_skill->flag [FLAG_APPLIED] = false;
		550
		551	current_weapon = ob;
		552	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		553
		554	if (chosen_skill)
		555	chosen_skill->flag [FLAG_APPLIED] = true;
		556
		557	update_stats ();
		558
		559	if (ob)
		560	{
		561	// now check wether any body locations became invalid, in which case
		562	// we cannot apply the weapon at the moment.
		563	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		564	if (slot[i].used < 0)
470	*/	565	{
471	if (clone->type == PLAYER) owner=clone;	566	current_weapon = chosen_skill = 0;
472	else return;	567	update_stats ();
		568
		569	new_draw_info_format (NDI_UNIQUE, 0, this,
		570	"You try to balance all your items at once, "
		571	"but the %s is just too much for your body. "
		572	"[You need to unapply some items first.]", &ob->name);
		573	return false;
		574	}
		575
		576	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		577	}
		578	else
		579	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		580
		581	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
473	}	582	{
474	set_owner(op, owner);	583	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		584	&name, ob->debug_desc ());
		585	return false;
		586	}
475		587
		588	return true;
476	}	589	}
477		590
478	/* Zero the key_values on op, decrementing the shared-string	591	/* Zero the key_values on op, decrementing the shared-string
479	* refcounts and freeing the links.	592	* refcounts and freeing the links.
480	*/	593	*/
		594	static void
481	static void free_key_values(object * op)	595	free_key_values (object *op)
482	{	596	{
483	for (key_value *i = op->key_values; i != 0; )	597	for (key_value *i = op->key_values; i; )
484	{	598	{
485	key_value *next = i->next;	599	key_value *next = i->next;
486	delete i;	600	delete i;
		601
487	i = next;	602	i = next;
488	}	603	}
489		604
490	op->key_values = 0;	605	op->key_values = 0;
491	}	606	}
492		607
493	void object::clear ()	608	object &
		609	object::operator =(const object &src)
494	{	610	{
495	attachable_base::clear ();	611	bool is_freed = flag [FLAG_FREED];
		612	bool is_removed = flag [FLAG_REMOVED];
496		613
497	free_key_values (this);	614	*(object_copy *)this = src;
498		615
499	name = 0;	616	flag [FLAG_FREED] = is_freed;
500	name_pl = 0;	617	flag [FLAG_REMOVED] = is_removed;
501	title = 0;
502	race = 0;
503	slaying = 0;
504	skill = 0;
505	msg = 0;
506	lore = 0;
507	custom_name = 0;
508	materialname = 0;
509
510	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
511
512	SET_FLAG (this, FLAG_REMOVED);
513	}
514
515	void object::clone (object *destination)
516	{
517	*(object_copy *)destination = *(object_copy *)this;
518	*(object_pod *)destination = *(object_pod *)this;
519
520	if (self || cb)
521	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
522	}
523
524	/*
525	* clear_object() frees everything allocated by an object, and also
526	* clears all variables and flags to default settings.
527	*/
528
529	void clear_object (object *op)
530	{
531	op->clear ();
532
533	op->contr = NULL;
534	op->below = NULL;
535	op->above = NULL;
536	op->inv = NULL;
537	op->container=NULL;
538	op->env=NULL;
539	op->more=NULL;
540	op->head=NULL;
541	op->map=NULL;
542	op->refcount=0;
543	op->active_next = NULL;
544	op->active_prev = NULL;
545	/* What is not cleared is next, prev, and count */
546
547	op->expmul = 1.0;
548	op->face = blank_face;
549	op->attacked_by_count = -1;
550
551	if (settings.casting_time)
552	op->casting_time = -1;
553	}
554
555	/*
556	* copy object first frees everything allocated by the second object,
557	* and then copies the contends of the first object into the second
558	* object, allocating what needs to be allocated. Basically, any
559	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
560	* if the first object is freed, the pointers in the new object
561	* will point at garbage.
562	*/
563
564	void copy_object (object *op2, object *op)
565	{
566	bool is_freed = QUERY_FLAG (op, FLAG_FREED);
567	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);
568
569	op2->clone (op);
570
571	if (is_freed) SET_FLAG (op, FLAG_FREED);
572	if (is_removed) SET_FLAG (op, FLAG_REMOVED);
573
574	if (op2->speed < 0)
575	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;
576		618
577	/* Copy over key_values, if any. */	619	/* Copy over key_values, if any. */
578	if (op2->key_values != NULL)	620	if (src.key_values)
579	{	621	{
580	key_value *tail = NULL;	622	key_value *tail = 0;
581	key_value *i;
582
583	op->key_values = NULL;	623	key_values = 0;
584		624
585	for (i = op2->key_values; i != NULL; i = i->next)	625	for (key_value *i = src.key_values; i; i = i->next)
586	{	626	{
587	key_value *new_link = new key_value;	627	key_value *new_link = new key_value;
588		628
589	new_link->next = NULL;	629	new_link->next = 0;
590	new_link->key = i->key;	630	new_link->key = i->key;
591	new_link->value = i->value;	631	new_link->value = i->value;
592		632
593	/* Try and be clever here, too. */	633	/* Try and be clever here, too. */
594	if (op->key_values == NULL)	634	if (!key_values)
595	{	635	{
596	op->key_values = new_link;	636	key_values = new_link;
597	tail = new_link;	637	tail = new_link;
598	}	638	}
599	else	639	else
600	{	640	{
601	tail->next = new_link;	641	tail->next = new_link;
602	tail = new_link;	642	tail = new_link;
603	}	643	}
604	}	644	}
605	}	645	}
606
607	update_ob_speed (op);
608	}	646	}
609		647
610	/*	648	/*
611	* get_object() grabs an object from the list of unused objects, makes	649	* copy_to first frees everything allocated by the dst object,
612	* sure it is initialised, and returns it.	650	* and then copies the contents of itself into the second
613	* If there are no free objects, expand_objects() is called to get more.	651	* object, allocating what needs to be allocated. Basically, any
		652	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
		653	* if the first object is freed, the pointers in the new object
		654	* will point at garbage.
		655	*/
		656	void
		657	object::copy_to (object *dst)
		658	{
		659	*dst = *this;
		660
		661	if (speed < 0)
		662	dst->speed_left -= rndm ();
		663
		664	dst->set_speed (dst->speed);
		665	}
		666
		667	void
		668	object::instantiate ()
		669	{
		670	if (!uuid.seq) // HACK
		671	uuid = UUID::gen ();
		672
		673	speed_left = -0.1f;
		674	/* copy the body_info to the body_used - this is only really
		675	* need for monsters, but doesn't hurt to do it for everything.
		676	* by doing so, when a monster is created, it has good starting
		677	* values for the body_used info, so when items are created
		678	* for it, they can be properly equipped.
614	*/	679	*/
		680	for (int i = NUM_BODY_LOCATIONS; i--; )
		681	slot[i].used = slot[i].info;
615		682
616	object *get_object ()	683	attachable::instantiate ();
617	{	684	}
618	object *op = new object;
619		685
620	op->count = ++ob_count;	686	object *
621		687	object::clone ()
622	op->active_next = 0;	688	{
623	op->active_prev = 0;	689	object *neu = create ();
624		690	copy_to (neu);
625	op->next = objects;
626	op->prev = 0;
627
628	if (objects)
629	objects->prev = op;
630
631	objects = op;
632
633	SET_FLAG (op, FLAG_REMOVED);
634
635	op->expmul = 1.0;
636	op->face = blank_face;
637	op->attacked_by_count = -1;
638
639	return op;	691	return neu;
640	}	692	}
641		693
642	/*	694	/*
643	* If an object with the IS_TURNABLE() flag needs to be turned due	695	* If an object with the IS_TURNABLE() flag needs to be turned due
644	* to the closest player being on the other side, this function can	696	* to the closest player being on the other side, this function can
645	* be called to update the face variable, _and_ how it looks on the map.	697	* be called to update the face variable, _and_ how it looks on the map.
646	*/	698	*/
647		699	void
648	void update_turn_face(object *op) {	700	update_turn_face (object *op)
		701	{
649	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	702	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
650	return;	703	return;
		704
651	SET_ANIMATION(op, op->direction);	705	SET_ANIMATION (op, op->direction);
652	update_object(op,UP_OBJ_FACE);	706	update_object (op, UP_OBJ_FACE);
653	}	707	}
654		708
655	/*	709	/*
656	* Updates the speed of an object. If the speed changes from 0 to another	710	* Updates the speed of an object. If the speed changes from 0 to another
657	* value, or vice versa, then add/remove the object from the active list.	711	* value, or vice versa, then add/remove the object from the active list.
658	* This function needs to be called whenever the speed of an object changes.	712	* This function needs to be called whenever the speed of an object changes.
659	*/	713	*/
660		714	void
661	void update_ob_speed(object *op) {	715	object::set_speed (float speed)
662	extern int arch_init;	716	{
663		717	if (flag [FLAG_FREED] && speed)
664	/* No reason putting the archetypes objects on the speed list,	718	{
665	* since they never really need to be updated.
666	*/
667
668	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {
669	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	719	LOG (llevError, "Object %s is freed but has speed.\n", &name);
670	#ifdef MANY_CORES
671	abort();
672	#else
673	op->speed = 0;	720	speed = 0;
674	#endif
675	}	721	}
676	if (arch_init) {
677	return;
678	}
679	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
680	/* If already on active list, don't do anything */
681	if (op->active_next || op->active_prev || op==active_objects)
682	return;
683		722
684	/* process_events() expects us to insert the object at the beginning	723	this->speed = speed;
685	* of the list. */	724
686	op->active_next = active_objects;	725	if (has_active_speed ())
687	if (op->active_next!=NULL)	726	activate ();
688	op->active_next->active_prev = op;
689	active_objects = op;
690	}
691	else {	727	else
692	/* If not on the active list, nothing needs to be done */	728	deactivate ();
693	if (!op->active_next && !op->active_prev && op!=active_objects)
694	return;
695
696	if (op->active_prev==NULL) {
697	active_objects = op->active_next;
698	if (op->active_next!=NULL)
699	op->active_next->active_prev = NULL;
700	}
701	else {
702	op->active_prev->active_next = op->active_next;
703	if (op->active_next)
704	op->active_next->active_prev = op->active_prev;
705	}
706	op->active_next = NULL;
707	op->active_prev = NULL;
708	}
709	}	729	}
710		730
711	/* This function removes object 'op' from the list of active
712	* objects.
713	* This should only be used for style maps or other such
714	* reference maps where you don't want an object that isn't
715	* in play chewing up cpu time getting processed.
716	* The reverse of this is to call update_ob_speed, which
717	* will do the right thing based on the speed of the object.
718	*/
719	void remove_from_active_list(object *op)
720	{
721	/* If not on the active list, nothing needs to be done */
722	if (!op->active_next && !op->active_prev && op!=active_objects)
723	return;
724
725	if (op->active_prev==NULL) {
726	active_objects = op->active_next;
727	if (op->active_next!=NULL)
728	op->active_next->active_prev = NULL;
729	}
730	else {
731	op->active_prev->active_next = op->active_next;
732	if (op->active_next)
733	op->active_next->active_prev = op->active_prev;
734	}
735	op->active_next = NULL;
736	op->active_prev = NULL;
737	}
738
739	/*	731	/*
740	* update_object() updates the array which represents the map.	732	* update_object() updates the the map.
741	* It takes into account invisible objects (and represent squares covered	733	* It takes into account invisible objects (and represent squares covered
742	* by invisible objects by whatever is below them (unless it's another	734	* by invisible objects by whatever is below them (unless it's another
743	* invisible object, etc...)	735	* invisible object, etc...)
744	* If the object being updated is beneath a player, the look-window	736	* If the object being updated is beneath a player, the look-window
745	* of that player is updated (this might be a suboptimal way of	737	* of that player is updated (this might be a suboptimal way of
746	* updating that window, though, since update_object() is called _often_)	738	* updating that window, though, since update_object() is called _often_)
747	*	739	*
748	* action is a hint of what the caller believes need to be done.	740	* action is a hint of what the caller believes need to be done.
749	* For example, if the only thing that has changed is the face (due to
750	* an animation), we don't need to call update_position until that actually
751	* comes into view of a player. OTOH, many other things, like addition/removal
752	* of walls or living creatures may need us to update the flags now.
753	* current action are:	741	* current action are:
754	* UP_OBJ_INSERT: op was inserted	742	* UP_OBJ_INSERT: op was inserted
755	* UP_OBJ_REMOVE: op was removed	743	* UP_OBJ_REMOVE: op was removed
756	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	744	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
757	* as that is easier than trying to look at what may have changed.	745	* as that is easier than trying to look at what may have changed.
758	* UP_OBJ_FACE: only the objects face has changed.	746	* UP_OBJ_FACE: only the objects face has changed.
759	*/	747	*/
760		748	void
761	void update_object(object *op, int action) {	749	update_object (object *op, int action)
762	int update_now=0, flags;	750	{
763	MoveType move_on, move_off, move_block, move_slow;
764
765	if (op == NULL) {	751	if (op == NULL)
		752	{
766	/* this should never happen */	753	/* this should never happen */
767	LOG(llevDebug,"update_object() called for NULL object.\n");	754	LOG (llevDebug, "update_object() called for NULL object.\n");
768	return;	755	return;
769	}
770		756	}
771	if(op->env!=NULL) {	757
		758	if (op->env)
		759	{
772	/* Animation is currently handled by client, so nothing	760	/* Animation is currently handled by client, so nothing
773	* to do in this case.	761	* to do in this case.
774	*/	762	*/
775	return;	763	return;
776	}	764	}
777		765
778	/* If the map is saving, don't do anything as everything is	766	/* If the map is saving, don't do anything as everything is
779	* going to get freed anyways.	767	* going to get freed anyways.
780	*/	768	*/
781	if (!op->map || op->map->in_memory == MAP_SAVING) return;	769	if (!op->map || op->map->in_memory == MAP_SAVING)
782		770	return;
		771
783	/* make sure the object is within map boundaries */	772	/* make sure the object is within map boundaries */
784	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	773	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
785	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	774	{
786	LOG(llevError,"update_object() called for object out of map!\n");	775	LOG (llevError, "update_object() called for object out of map!\n");
787	#ifdef MANY_CORES	776	#ifdef MANY_CORES
788	abort();	777	abort ();
789	#endif	778	#endif
790	return;	779	return;
791	}
792		780	}
793	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
794	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
795	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
796	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
797	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
798	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
799		781
		782	mapspace &m = op->ms ();
		783
		784	if (!(m.flags_ & P_UPTODATE))
		785	/* nop */;
800	if (action == UP_OBJ_INSERT) {	786	else if (action == UP_OBJ_INSERT)
		787	{
		788	// this is likely overkill, TODO: revisit (schmorp)
801	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	789	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
802	update_now=1;
803
804	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	790	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
805	update_now=1;	791	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
806		792	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		793	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
807	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	794	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
808	update_now=1;	795	|| (m.move_on | op->move_on ) != m.move_on
809
810	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
811	update_now=1;
812
813	if ((move_on | op->move_on) != move_on) update_now=1;
814	if ((move_off | op->move_off) != move_off) update_now=1;	796	|| (m.move_off | op->move_off ) != m.move_off
		797	|| (m.move_slow | op->move_slow) != m.move_slow
815	/* This isn't perfect, but I don't expect a lot of objects to	798	/* This isn't perfect, but I don't expect a lot of objects to
816	* to have move_allow right now.	799	* to have move_allow right now.
817	*/	800	*/
818	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	801	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
819	update_now=1;	802	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
820	if ((move_slow | op->move_slow) != move_slow) update_now=1;	803	m.flags_ = 0;
821	}	804	}
822	/* if the object is being removed, we can't make intelligent	805	/* if the object is being removed, we can't make intelligent
823	* decisions, because remove_ob can't really pass the object	806	* decisions, because remove_ob can't really pass the object
824	* that is being removed.	807	* that is being removed.
825	*/	808	*/
826	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	809	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
827	update_now=1;	810	m.flags_ = 0;
828	} else if (action == UP_OBJ_FACE) {	811	else if (action == UP_OBJ_FACE)
829	/* Nothing to do for that case */	812	/* Nothing to do for that case */ ;
830	}
831	else {	813	else
832	LOG(llevError,"update_object called with invalid action: %d\n", action);	814	LOG (llevError, "update_object called with invalid action: %d\n", action);
833	}
834		815
835	if (update_now) {
836	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
837	update_position(op->map, op->x, op->y);
838	}
839
840	if(op->more!=NULL)	816	if (op->more)
841	update_object(op->more, action);	817	update_object (op->more, action);
842	}	818	}
843		819
		820	object::object ()
		821	{
		822	SET_FLAG (this, FLAG_REMOVED);
844		823
845	/*	824	expmul = 1.0;
846	* free_object() frees everything allocated by an object, removes	825	face = blank_face;
847	* it from the list of used objects, and puts it on the list of	826	}
848	* free objects. The IS_FREED() flag is set in the object.	827
849	* The object must have been removed by remove_ob() first for	828	object::~object ()
850	* this function to succeed.	829	{
851	*	830	unlink ();
852	* If free_inventory is set, free inventory as well. Else drop items in	831
853	* inventory to the ground.	832	free_key_values (this);
854	*/	833	}
		834
		835	static int object_count;
		836
		837	void object::link ()
		838	{
		839	assert (!index);//D
		840	uuid = UUID::gen ();
		841	count = ++object_count;
		842
		843	refcnt_inc ();
		844	objects.insert (this);
		845	}
		846
		847	void object::unlink ()
		848	{
		849	if (!index)
		850	return;
		851
		852	objects.erase (this);
		853	refcnt_dec ();
		854	}
855		855
856	void	856	void
857	free_object (object * ob)	857	object::activate ()
858	{	858	{
859	free_object2 (ob, 0);	859	/* If already on active list, don't do anything */
		860	if (active)
		861	return;
		862
		863	if (has_active_speed ())
		864	actives.insert (this);
860	}	865	}
861		866
862	void	867	void
863	free_object2 (object * ob, int free_inventory)	868	object::activate_recursive ()
864	{	869	{
865	object *tmp, *op;	870	activate ();
866		871
867	if (!QUERY_FLAG (ob, FLAG_REMOVED))	872	for (object *op = inv; op; op = op->below)
868	{	873	op->activate_recursive ();
869	LOG (llevDebug, "Free object called with non removed object\n");	874	}
870	dump_object (ob);
871	#ifdef MANY_CORES
872	abort ();
873	#endif
874	}
875		875
876	if (QUERY_FLAG (ob, FLAG_FRIENDLY))	876	/* This function removes object 'op' from the list of active
877	{	877	* objects.
878	LOG (llevMonster, "Warning: tried to free friendly object.\n");	878	* This should only be used for style maps or other such
879	remove_friendly_object (ob);	879	* reference maps where you don't want an object that isn't
880	}	880	* in play chewing up cpu time getting processed.
881		881	* The reverse of this is to call update_ob_speed, which
882	if (QUERY_FLAG (ob, FLAG_FREED))	882	* will do the right thing based on the speed of the object.
883	{	883	*/
884	dump_object (ob);	884	void
885	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	885	object::deactivate ()
		886	{
		887	/* If not on the active list, nothing needs to be done */
		888	if (!active)
886	return;	889	return;
		890
		891	actives.erase (this);
		892	}
		893
		894	void
		895	object::deactivate_recursive ()
		896	{
		897	for (object *op = inv; op; op = op->below)
		898	op->deactivate_recursive ();
		899
		900	deactivate ();
		901	}
		902
		903	void
		904	object::set_flag_inv (int flag, int value)
		905	{
		906	for (object *op = inv; op; op = op->below)
887	}	907	{
888		908	op->flag [flag] = value;
889	if (ob->more != NULL)	909	op->set_flag_inv (flag, value);
890	{	910	}
891	free_object2 (ob->more, free_inventory);	911	}
892	ob->more = NULL;
893	}
894		912
		913	/*
		914	* Remove and free all objects in the inventory of the given object.
		915	* object.c ?
		916	*/
		917	void
		918	object::destroy_inv (bool drop_to_ground)
		919	{
		920	// need to check first, because the checks below might segfault
		921	// as we might be on an invalid mapspace and crossfire code
		922	// is too buggy to ensure that the inventory is empty.
		923	// corollary: if you create arrows etc. with stuff in its inventory,
		924	// cf will crash below with off-map x and y
895	if (ob->inv)	925	if (!inv)
896	{	926	return;
		927
897	/* Only if the space blocks everything do we not process -	928	/* Only if the space blocks everything do we not process -
898	* if some form of movemnt is allowed, let objects	929	* if some form of movement is allowed, let objects
899	* drop on that space.	930	* drop on that space.
900	*/	931	*/
901	if (free_inventory || ob->map == NULL	932	if (!drop_to_ground
902	|| ob->map->in_memory != MAP_IN_MEMORY	933	|| !map
903	|| (GET_MAP_MOVE_BLOCK (ob->map, ob->x, ob->y) == MOVE_ALL))	934	|| map->in_memory != MAP_ACTIVE
904	{	935	|| map->nodrop
905	op = ob->inv;	936	|| ms ().move_block == MOVE_ALL)
906
907	while (op != NULL)
908	{	937	{
909	tmp = op->below;	938	while (inv)
910	remove_ob (op);	939	{
911	free_object2 (op, free_inventory);	940	inv->destroy_inv (false);
912	op = tmp;	941	inv->destroy ();
913	}	942	}
914	}
915	else
916	{ /* Put objects in inventory onto this space */
917	op = ob->inv;
918
919	while (op != NULL)
920	{
921	tmp = op->below;
922	remove_ob (op);
923
924	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
925	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE
926	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
927	free_object (op);
928	else
929	{
930	op->x = ob->x;
931	op->y = ob->y;
932	insert_ob_in_map (op, ob->map, NULL, 0); /* Insert in same map as the envir */
933	}
934
935	op = tmp;
936	}
937	}
938	}
939
940	/* Remove object from the active list */
941	ob->speed = 0;
942	update_ob_speed (ob);
943
944	SET_FLAG (ob, FLAG_FREED);
945	ob->count = 0;
946
947	/* Remove this object from the list of used objects */
948	if (ob->prev == NULL)
949	{
950	objects = ob->next;
951
952	if (objects != NULL)
953	objects->prev = NULL;
954	}	943	}
955	else	944	else
		945	{ /* Put objects in inventory onto this space */
		946	while (inv)
		947	{
		948	object *op = inv;
		949
		950	if (op->flag [FLAG_STARTEQUIP]
		951	|| op->flag [FLAG_NO_DROP]
		952	|| op->type == RUNE
		953	|| op->type == TRAP
		954	|| op->flag [FLAG_IS_A_TEMPLATE]
		955	|| op->flag [FLAG_DESTROY_ON_DEATH])
		956	op->destroy (true);
		957	else
		958	map->insert (op, x, y);
		959	}
		960	}
		961	}
		962
		963	object *object::create ()
		964	{
		965	object *op = new object;
		966	op->link ();
		967	return op;
		968	}
		969
		970	void
		971	object::do_destroy ()
		972	{
		973	if (flag [FLAG_IS_LINKED])
		974	remove_button_link (this);
		975
		976	if (flag [FLAG_FRIENDLY])
		977	remove_friendly_object (this);
		978
		979	remove ();
		980
		981	attachable::do_destroy ();
		982
		983	deactivate ();
		984	unlink ();
		985
		986	flag [FLAG_FREED] = 1;
		987
		988	// hack to ensure that freed objects still have a valid map
		989	{
		990	static maptile *freed_map; // freed objects are moved here to avoid crashes
		991
		992	if (!freed_map)
956	{	993	{
957	ob->prev->next = ob->next;	994	freed_map = new maptile;
958		995
959	if (ob->next != NULL)	996	freed_map->path = "<freed objects map>";
960	ob->next->prev = ob->prev;	997	freed_map->name = "/internal/freed_objects_map";
		998	freed_map->width = 3;
		999	freed_map->height = 3;
		1000	freed_map->nodrop = 1;
		1001
		1002	freed_map->alloc ();
		1003	freed_map->in_memory = MAP_ACTIVE;
961	}	1004	}
962		1005
963	free_key_values (ob);	1006	map = freed_map;
964		1007	x = 1;
965	/* Now link it with the free_objects list: */	1008	y = 1;
966	ob->prev = 0;
967	ob->next = 0;
968
969	delete ob;
970	}
971
972	/*
973	* sub_weight() recursively (outwards) subtracts a number from the
974	* weight of an object (and what is carried by it's environment(s)).
975	*/
976
977	void sub_weight (object *op, signed long weight) {
978	while (op != NULL) {
979	if (op->type == CONTAINER) {
980	weight=(signed long)(weight*(100-op->stats.Str)/100);
981	}
982	op->carrying-=weight;
983	op = op->env;
984	}	1009	}
985	}
986		1010
987	/* remove_ob(op):	1011	if (more)
		1012	{
		1013	more->destroy ();
		1014	more = 0;
		1015	}
		1016
		1017	head = 0;
		1018
		1019	// clear those pointers that likely might cause circular references
		1020	owner = 0;
		1021	enemy = 0;
		1022	attacked_by = 0;
		1023	current_weapon = 0;
		1024	}
		1025
		1026	void
		1027	object::destroy (bool destroy_inventory)
		1028	{
		1029	if (destroyed ())
		1030	return;
		1031
		1032	if (!is_head () && !head->destroyed ())
		1033	{
		1034	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
		1035	head->destroy (destroy_inventory);
		1036	}
		1037
		1038	destroy_inv (!destroy_inventory);
		1039
		1040	if (is_head ())
		1041	if (sound_destroy)
		1042	play_sound (sound_destroy);
		1043	else if (flag [FLAG_MONSTER])
		1044	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
		1045
		1046	attachable::destroy ();
		1047	}
		1048
		1049	/* op->remove ():
988	* This function removes the object op from the linked list of objects	1050	* This function removes the object op from the linked list of objects
989	* which it is currently tied to. When this function is done, the	1051	* which it is currently tied to. When this function is done, the
990	* object will have no environment. If the object previously had an	1052	* object will have no environment. If the object previously had an
991	* environment, the x and y coordinates will be updated to	1053	* environment, the x and y coordinates will be updated to
992	* the previous environment.	1054	* the previous environment.
993	* Beware: This function is called from the editor as well!
994	*/	1055	*/
995		1056	void
996	void remove_ob(object *op) {	1057	object::do_remove ()
		1058	{
997	object *tmp,*last=NULL;	1059	object *tmp, *last = 0;
998	object *otmp;	1060	object *otmp;
999	tag_t tag;
1000	int check_walk_off;
1001	mapstruct *m;
1002	sint16 x,y;
1003
1004		1061
1005	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1062	if (flag [FLAG_REMOVED])
1006	dump_object(op);	1063	return;
1007	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1008		1064
1009	/* Changed it to always dump core in this case. As has been learned	1065	INVOKE_OBJECT (REMOVE, this);
1010	* in the past, trying to recover from errors almost always
1011	* make things worse, and this is a real error here - something
1012	* that should not happen.
1013	* Yes, if this was a mission critical app, trying to do something
1014	* to recover may make sense, but that is because failure of the app
1015	* may have other disastrous problems. Cf runs out of a script
1016	* so is easily enough restarted without any real problems.
1017	* MSW 2001-07-01
1018	*/
1019	abort();
1020	}
1021	if(op->more!=NULL)
1022	remove_ob(op->more);
1023		1066
1024	SET_FLAG(op, FLAG_REMOVED);	1067	flag [FLAG_REMOVED] = true;
1025		1068
		1069	if (more)
		1070	more->remove ();
		1071
1026	/*	1072	/*
1027	* In this case, the object to be removed is in someones	1073	* In this case, the object to be removed is in someones
1028	* inventory.	1074	* inventory.
		1075	*/
		1076	if (env)
		1077	{
		1078	if (object *pl = visible_to ())
		1079	esrv_del_item (pl->contr, count);
		1080
		1081	adjust_weight (env, -total_weight ());
		1082
		1083	*(above ? &above->below : &env->inv) = below;
		1084
		1085	if (below)
		1086	below->above = above;
		1087
		1088	/* we set up values so that it could be inserted into
		1089	* the map, but we don't actually do that - it is up
		1090	* to the caller to decide what we want to do.
1029	*/	1091	*/
1030	if(op->env!=NULL) {	1092	map = env->map;
1031	if(op->nrof)	1093	x = env->x;
1032	sub_weight(op->env, op->weight*op->nrof);	1094	y = env->y;
1033	else	1095	above = 0;
1034	sub_weight(op->env, op->weight+op->carrying);	1096	below = 0;
		1097	env = 0;
1035		1098
1036	/* NO_FIX_PLAYER is set when a great many changes are being	1099	/* NO_FIX_PLAYER is set when a great many changes are being
1037	* made to players inventory. If set, avoiding the call	1100	* made to players inventory. If set, avoiding the call
1038	* to save cpu time.	1101	* to save cpu time.
		1102	*/
		1103	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
		1104	otmp->update_stats ();
		1105	}
		1106	else if (map)
		1107	{
		1108	map->dirty = true;
		1109	mapspace &ms = this->ms ();
		1110
		1111	if (object *pl = ms.player ())
		1112	{
		1113	if (type == PLAYER) // this == pl(!)
		1114	{
		1115	// leaving a spot always closes any open container on the ground
		1116	if (container && !container->env)
		1117	// this causes spurious floorbox updates, but it ensures
		1118	// that the CLOSE event is being sent.
		1119	close_container ();
		1120
		1121	--map->players;
		1122	map->touch ();
		1123	}
		1124	else if (pl->container == this)
		1125	{
		1126	// removing a container should close it
		1127	close_container ();
		1128	}
		1129
		1130	esrv_del_item (pl->contr, count);
		1131	}
		1132
		1133	/* link the object above us */
		1134	if (above)
		1135	above->below = below;
		1136	else
		1137	ms.top = below; /* we were top, set new top */
		1138
		1139	/* Relink the object below us, if there is one */
		1140	if (below)
		1141	below->above = above;
		1142	else
		1143	{
		1144	/* Nothing below, which means we need to relink map object for this space
		1145	* use translated coordinates in case some oddness with map tiling is
		1146	* evident
1039	*/	1147	*/
1040	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1148	if (GET_MAP_OB (map, x, y) != this)
1041	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1149	LOG (llevError, "remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom? %s\n", debug_desc ());
1042	fix_player(otmp);
1043		1150
1044	if(op->above!=NULL)	1151	ms.bot = above; /* goes on above it. */
1045	op->above->below=op->below;
1046	else
1047	op->env->inv=op->below;
1048
1049	if(op->below!=NULL)
1050	op->below->above=op->above;
1051
1052	/* we set up values so that it could be inserted into
1053	* the map, but we don't actually do that - it is up
1054	* to the caller to decide what we want to do.
1055	*/	1152	}
1056	op->x=op->env->x,op->y=op->env->y;	1153
1057	op->map=op->env->map;	1154	above = 0;
1058	op->above=NULL,op->below=NULL;	1155	below = 0;
1059	op->env=NULL;	1156
		1157	if (map->in_memory == MAP_SAVING)
1060	return;	1158	return;
1061	}
1062		1159
1063	/* If we get here, we are removing it from a map */	1160	int check_walk_off = !flag [FLAG_NO_APPLY];
1064	if (op->map == NULL) return;
1065		1161
1066	x = op->x;	1162	if (object *pl = ms.player ())
1067	y = op->y;
1068	m = get_map_from_coord(op->map, &x, &y);
1069
1070	if (!m) {
1071	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1072	op->map->path, op->x, op->y);
1073	/* in old days, we used to set x and y to 0 and continue.
1074	* it seems if we get into this case, something is probablye
1075	* screwed up and should be fixed.
1076	*/
1077	abort();
1078	}
1079	if (op->map != m) {
1080	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1081	op->map->path, m->path, op->x, op->y, x, y);
1082	}
1083
1084	/* Re did the following section of code - it looks like it had
1085	* lots of logic for things we no longer care about
1086	*/
1087
1088	/* link the object above us */
1089	if (op->above)
1090	op->above->below=op->below;
1091	else
1092	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1093
1094	/* Relink the object below us, if there is one */
1095	if(op->below) {
1096	op->below->above=op->above;
1097	} else {
1098	/* Nothing below, which means we need to relink map object for this space
1099	* use translated coordinates in case some oddness with map tiling is
1100	* evident
1101	*/
1102	if(GET_MAP_OB(m,x,y)!=op) {
1103	dump_object(op);
1104	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);
1105	dump_object(GET_MAP_OB(m,x,y));
1106	LOG(llevError,"%s\n",errmsg);
1107	}	1163	{
1108	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1164	if (pl->container == this)
1109	}
1110	op->above=NULL;
1111	op->below=NULL;
1112
1113	if (op->map->in_memory == MAP_SAVING)
1114	return;
1115
1116	tag = op->count;
1117	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1118	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1119	/* No point updating the players look faces if he is the object
1120	* being removed.
1121	*/
1122
1123	if(tmp->type==PLAYER && tmp!=op) {
1124	/* If a container that the player is currently using somehow gets	1165	/* If a container that the player is currently using somehow gets
1125	* removed (most likely destroyed), update the player view	1166	* removed (most likely destroyed), update the player view
1126	* appropriately.	1167	* appropriately.
1127	*/	1168	*/
1128	if (tmp->container==op) {	1169	pl->close_container ();
1129	CLEAR_FLAG(op, FLAG_APPLIED);	1170
1130	tmp->container=NULL;	1171	//TODO: the floorbox prev/next might need updating
		1172	esrv_del_item (pl->contr, count);
		1173	}
		1174
		1175	for (tmp = ms.bot; tmp; tmp = tmp->above)
		1176	{
		1177	/* No point updating the players look faces if he is the object
		1178	* being removed.
		1179	*/
		1180
		1181	/* See if object moving off should effect something */
		1182	if (check_walk_off
		1183	&& ((move_type & tmp->move_off)
		1184	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1185	{
		1186	move_apply (tmp, this, 0);
		1187
		1188	if (destroyed ())
		1189	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1131	}	1190	}
1132	tmp->contr->socket.update_look=1;	1191
		1192	last = tmp;
1133	}	1193	}
1134	/* See if player moving off should effect something */
1135	if (check_walk_off && ((op->move_type & tmp->move_off) &&
1136	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {
1137		1194
1138	move_apply(tmp, op, NULL);
1139	if (was_destroyed (op, tag)) {
1140	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "
1141	"leaving object\n", &tmp->name, &tmp->arch->name);
1142	}
1143	}
1144
1145	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1146
1147	if(tmp->above == tmp)
1148	tmp->above = NULL;
1149	last=tmp;
1150	}
1151	/* last == NULL of there are no objects on this space */	1195	/* last == NULL if there are no objects on this space */
1152	if (last==NULL) {	1196	//TODO: this makes little sense, why only update the topmost object?
1153	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1197	if (!last)
1154	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1198	map->at (x, y).flags_ = 0;
1155	* those out anyways, and if there are any flags set right now, they won't
1156	* be correct anyways.
1157	*/
1158	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1159	update_position(op->map, op->x, op->y);
1160	}
1161	else	1199	else
1162	update_object(last, UP_OBJ_REMOVE);	1200	update_object (last, UP_OBJ_REMOVE);
1163		1201
1164	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1202	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1165	update_all_los(op->map, op->x, op->y);	1203	update_all_los (map, x, y);
1166		1204	}
1167	}	1205	}
1168		1206
1169	/*	1207	/*
1170	* merge_ob(op,top):	1208	* merge_ob(op,top):
1171	*	1209	*
1172	* This function goes through all objects below and including top, and	1210	* This function goes through all objects below and including top, and
1173	* merges op to the first matching object.	1211	* merges op to the first matching object.
1174	* If top is NULL, it is calculated.	1212	* If top is NULL, it is calculated.
1175	* Returns pointer to object if it succeded in the merge, otherwise NULL	1213	* Returns pointer to object if it succeded in the merge, otherwise NULL
1176	*/	1214	*/
1177		1215	object *
1178	object *merge_ob(object *op, object *top) {	1216	merge_ob (object *op, object *top)
		1217	{
1179	if(!op->nrof)	1218	if (!op->nrof)
1180	return 0;	1219	return 0;
1181	if(top==NULL)	1220
		1221	if (!top)
1182	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1222	for (top = op; top && top->above; top = top->above)
		1223	;
		1224
1183	for(;top!=NULL;top=top->below) {	1225	for (; top; top = top->below)
1184	if(top==op)	1226	if (object::can_merge (op, top))
1185	continue;
1186	if (CAN_MERGE(op,top))
1187	{	1227	{
1188	top->nrof+=op->nrof;	1228	top->nrof += op->nrof;
1189	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1229
1190	op->weight = 0; /* Don't want any adjustements now */	1230	if (object *pl = top->visible_to ())
1191	remove_ob(op);	1231	esrv_update_item (UPD_NROF, pl, top);
1192	free_object(op);	1232
		1233	op->weight = 0; // cancel the addition above
		1234	op->carrying = 0; // must be 0 already
		1235
		1236	op->destroy (1);
		1237
1193	return top;	1238	return top;
1194	}	1239	}
1195	}	1240
1196	return NULL;	1241	return 0;
1197	}	1242	}
1198		1243
		1244	void
		1245	object::expand_tail ()
		1246	{
		1247	if (more)
		1248	return;
		1249
		1250	object *prev = this;
		1251
		1252	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1253	{
		1254	object *op = arch_to_object (at);
		1255
		1256	op->name = name;
		1257	op->name_pl = name_pl;
		1258	op->title = title;
		1259
		1260	op->head = this;
		1261	prev->more = op;
		1262
		1263	prev = op;
		1264	}
		1265	}
		1266
1199	/*	1267	/*
1200	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1268	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1201	* job preparing multi-part monsters	1269	* job preparing multi-part monsters.
1202	*/	1270	*/
		1271	object *
1203	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1272	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1204	object* tmp;	1273	{
1205	if (op->head)	1274	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1206	op=op->head;	1275	{
1207	for (tmp=op;tmp;tmp=tmp->more){
1208	tmp->x=x+tmp->arch->clone.x;	1276	tmp->x = x + tmp->arch->x;
1209	tmp->y=y+tmp->arch->clone.y;	1277	tmp->y = y + tmp->arch->y;
1210	}	1278	}
		1279
1211	return insert_ob_in_map (op, m, originator, flag);	1280	return insert_ob_in_map (op, m, originator, flag);
1212	}	1281	}
1213		1282
1214	/*	1283	/*
1215	* insert_ob_in_map (op, map, originator, flag):	1284	* insert_ob_in_map (op, map, originator, flag):
1216	* This function inserts the object in the two-way linked list	1285	* This function inserts the object in the two-way linked list
…		…
1229	* Return value:	1298	* Return value:
1230	* new object if 'op' was merged with other object	1299	* new object if 'op' was merged with other object
1231	* NULL if 'op' was destroyed	1300	* NULL if 'op' was destroyed
1232	* just 'op' otherwise	1301	* just 'op' otherwise
1233	*/	1302	*/
1234		1303	object *
1235	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1304	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1236	{	1305	{
1237	object *tmp, *top, *floor=NULL;	1306	assert (!op->flag [FLAG_FREED]);
1238	sint16 x,y;
1239		1307
1240	if (QUERY_FLAG (op, FLAG_FREED)) {	1308	op->remove ();
1241	LOG (llevError, "Trying to insert freed object!\n");	1309
1242	return NULL;	1310	/* Ideally, the caller figures this out. However, it complicates a lot
		1311	* of areas of callers (eg, anything that uses find_free_spot would now
		1312	* need extra work
		1313	*/
		1314	if (!xy_normalise (m, op->x, op->y))
1243	}	1315	{
1244	if(m==NULL) {	1316	op->destroy (1);
1245	dump_object(op);
1246	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);
1247	return op;	1317	return 0;
1248	}	1318	}
1249	if(out_of_map(m,op->x,op->y)) {	1319
1250	dump_object(op);	1320	if (object *more = op->more)
1251	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1321	if (!insert_ob_in_map (more, m, originator, flag))
1252	#ifdef MANY_CORES
1253	/* Better to catch this here, as otherwise the next use of this object
1254	* is likely to cause a crash. Better to find out where it is getting
1255	* improperly inserted.
1256	*/
1257	abort();
1258	#endif
1259	return op;	1322	return 0;
1260	}
1261	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1262	dump_object(op);
1263	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);
1264	return op;
1265	}
1266	if(op->more!=NULL) {
1267	/* The part may be on a different map. */
1268		1323
1269	object *more = op->more;	1324	CLEAR_FLAG (op, FLAG_REMOVED);
1270		1325
1271	/* We really need the caller to normalize coordinates - if	1326	op->map = m;
1272	* we set the map, that doesn't work if the location is within	1327	mapspace &ms = op->ms ();
1273	* a map and this is straddling an edge. So only if coordinate	1328
1274	* is clear wrong do we normalize it.	1329	/* this has to be done after we translate the coordinates.
		1330	*/
		1331	if (op->nrof && !(flag & INS_NO_MERGE))
		1332	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
		1333	if (object::can_merge (op, tmp))
1275	*/	1334	{
1276	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1335	// TODO: we atcually want to update tmp, not op,
1277	more->map = get_map_from_coord(m, &more->x, &more->y);	1336	// but some caller surely breaks when we return tmp
1278	} else if (!more->map) {	1337	// from here :/
1279	/* For backwards compatibility - when not dealing with tiled maps,	1338	op->nrof += tmp->nrof;
1280	* more->map should always point to the parent.	1339	tmp->destroy (1);
1281	*/
1282	more->map = m;
1283	}	1340	}
1284		1341
1285	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1342	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1286	if ( ! op->head)	1343	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1287	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1344
1288	return NULL;	1345	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1346	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1347
		1348	if (flag & INS_BELOW_ORIGINATOR)
		1349	{
		1350	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1351	{
		1352	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1353	abort ();
1289	}	1354	}
		1355
		1356	op->above = originator;
		1357	op->below = originator->below;
		1358
		1359	if (op->below)
		1360	op->below->above = op;
		1361	else
		1362	ms.bot = op;
		1363
		1364	/* since *below* originator, no need to update top */
		1365	originator->below = op;
		1366	}
		1367	else
1290	}	1368	{
1291	CLEAR_FLAG(op,FLAG_REMOVED);	1369	object *top, *floor = NULL;
1292		1370
1293	/* Ideally, the caller figures this out. However, it complicates a lot	1371	top = ms.bot;
1294	* of areas of callers (eg, anything that uses find_free_spot would now
1295	* need extra work
1296	*/
1297	op->map=get_map_from_coord(m, &op->x, &op->y);
1298	x = op->x;
1299	y = op->y;
1300		1372
1301	/* this has to be done after we translate the coordinates.	1373	/* If there are other objects, then */
1302	*/	1374	if (top)
1303	if(op->nrof && !(flag & INS_NO_MERGE)) {	1375	{
1304	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1376	object *last = 0;
1305	if (CAN_MERGE(op,tmp)) {	1377
1306	op->nrof+=tmp->nrof;	1378	/*
1307	remove_ob(tmp);	1379	* If there are multiple objects on this space, we do some trickier handling.
1308	free_object(tmp);	1380	* We've already dealt with merging if appropriate.
		1381	* Generally, we want to put the new object on top. But if
		1382	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1383	* floor, we want to insert above that and no further.
		1384	* Also, if there are spell objects on this space, we stop processing
		1385	* once we get to them. This reduces the need to traverse over all of
		1386	* them when adding another one - this saves quite a bit of cpu time
		1387	* when lots of spells are cast in one area. Currently, it is presumed
		1388	* that flying non pickable objects are spell objects.
		1389	*/
		1390	for (top = ms.bot; top; top = top->above)
		1391	{
		1392	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1393	floor = top;
		1394
		1395	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1396	{
		1397	/* We insert above top, so we want this object below this */
		1398	top = top->below;
		1399	break;
		1400	}
		1401
		1402	last = top;
1309	}	1403	}
1310	}
1311		1404
1312	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1405	/* Don't want top to be NULL, so set it to the last valid object */
1313	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1406	top = last;
1314	if (!QUERY_FLAG(op, FLAG_ALIVE))
1315	CLEAR_FLAG(op, FLAG_NO_STEAL);
1316		1407
1317	if (flag & INS_BELOW_ORIGINATOR) {	1408	/* We let update_position deal with figuring out what the space
1318	if (originator->map != op->map || originator->x != op->x ||	1409	* looks like instead of lots of conditions here.
1319	originator->y != op->y) {	1410	* makes things faster, and effectively the same result.
1320	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1411	*/
1321	abort();	1412
		1413	/* Have object 'fall below' other objects that block view.
		1414	* Unless those objects are exits.
		1415	* If INS_ON_TOP is used, don't do this processing
		1416	* Need to find the object that in fact blocks view, otherwise
		1417	* stacking is a bit odd.
		1418	*/
		1419	if (!(flag & INS_ON_TOP)
		1420	&& ms.flags () & P_BLOCKSVIEW
		1421	&& (op->face && !faces [op->face].visibility))
		1422	{
		1423	for (last = top; last != floor; last = last->below)
		1424	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1425	break;
		1426
		1427	/* Check to see if we found the object that blocks view,
		1428	* and make sure we have a below pointer for it so that
		1429	* we can get inserted below this one, which requires we
		1430	* set top to the object below us.
		1431	*/
		1432	if (last && last->below && last != floor)
		1433	top = last->below;
		1434	}
		1435	} /* If objects on this space */
		1436
		1437	if (flag & INS_ABOVE_FLOOR_ONLY)
		1438	top = floor;
		1439
		1440	/* Top is the object that our object (op) is going to get inserted above.
		1441	*/
		1442
		1443	/* First object on this space */
		1444	if (!top)
		1445	{
		1446	op->above = ms.bot;
		1447
		1448	if (op->above)
		1449	op->above->below = op;
		1450
		1451	op->below = 0;
		1452	ms.bot = op;
1322	}	1453	}
1323	op->above = originator;
1324	op->below = originator->below;
1325	if (op->below) op->below->above = op;
1326	else SET_MAP_OB(op->map, op->x, op->y, op);
1327	/* since *below* originator, no need to update top */
1328	originator->below = op;
1329	} else {	1454	else
1330	/* If there are other objects, then */
1331	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1332	object *last=NULL;
1333	/*
1334	* If there are multiple objects on this space, we do some trickier handling.
1335	* We've already dealt with merging if appropriate.
1336	* Generally, we want to put the new object on top. But if
1337	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1338	* floor, we want to insert above that and no further.
1339	* Also, if there are spell objects on this space, we stop processing
1340	* once we get to them. This reduces the need to traverse over all of
1341	* them when adding another one - this saves quite a bit of cpu time
1342	* when lots of spells are cast in one area. Currently, it is presumed
1343	* that flying non pickable objects are spell objects.
1344	*/
1345
1346	while (top != NULL) {
1347	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1348	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1349	if (QUERY_FLAG(top, FLAG_NO_PICK)
1350	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1351	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1352	{
1353	/* We insert above top, so we want this object below this */
1354	top=top->below;
1355	break;
1356	}
1357	last = top;
1358	top = top->above;
1359	}
1360	/* Don't want top to be NULL, so set it to the last valid object */
1361	top = last;
1362
1363	/* We let update_position deal with figuring out what the space
1364	* looks like instead of lots of conditions here.
1365	* makes things faster, and effectively the same result.
1366	*/
1367
1368	/* Have object 'fall below' other objects that block view.
1369	* Unless those objects are exits, type 66
1370	* If INS_ON_TOP is used, don't do this processing
1371	* Need to find the object that in fact blocks view, otherwise
1372	* stacking is a bit odd.
1373	*/
1374	if (!(flag & INS_ON_TOP) &&
1375	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1376	(op->face && !op->face->visibility)) {
1377	for (last=top; last != floor; last=last->below)
1378	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1379	/* Check to see if we found the object that blocks view,
1380	* and make sure we have a below pointer for it so that
1381	* we can get inserted below this one, which requires we
1382	* set top to the object below us.
1383	*/
1384	if (last && last->below && last != floor) top=last->below;
1385	}
1386	} /* If objects on this space */
1387	if (flag & INS_MAP_LOAD)
1388	top = GET_MAP_TOP(op->map,op->x,op->y);
1389	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;
1390
1391	/* Top is the object that our object (op) is going to get inserted above.
1392	*/
1393
1394	/* First object on this space */
1395	if (!top) {
1396	op->above = GET_MAP_OB(op->map, op->x, op->y);
1397	if (op->above) op->above->below = op;
1398	op->below = NULL;
1399	SET_MAP_OB(op->map, op->x, op->y, op);
1400	} else { /* get inserted into the stack above top */	1455	{ /* get inserted into the stack above top */
1401	op->above = top->above;	1456	op->above = top->above;
		1457
		1458	if (op->above)
1402	if (op->above) op->above->below = op;	1459	op->above->below = op;
		1460
1403	op->below = top;	1461	op->below = top;
1404	top->above = op;	1462	top->above = op;
1405	}	1463	}
		1464
1406	if (op->above==NULL)	1465	if (!op->above)
1407	SET_MAP_TOP(op->map,op->x, op->y, op);	1466	ms.top = op;
1408	} /* else not INS_BELOW_ORIGINATOR */	1467	} /* else not INS_BELOW_ORIGINATOR */
1409		1468
1410	if(op->type==PLAYER)	1469	if (op->type == PLAYER)
		1470	{
1411	op->contr->do_los=1;	1471	op->contr->do_los = 1;
		1472	++op->map->players;
		1473	op->map->touch ();
		1474	}
1412		1475
1413	/* If we have a floor, we know the player, if any, will be above	1476	op->map->dirty = true;
1414	* it, so save a few ticks and start from there.
1415	*/
1416	if (!(flag & INS_MAP_LOAD))
1417	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {
1418	if (tmp->type == PLAYER)
1419	tmp->contr->socket.update_look=1;
1420	}
1421		1477
		1478	if (object *pl = ms.player ())
		1479	//TODO: the floorbox prev/next might need updating
		1480	esrv_send_item (pl, op);
		1481
1422	/* If this object glows, it may affect lighting conditions that are	1482	/* If this object glows, it may affect lighting conditions that are
1423	* visible to others on this map. But update_all_los is really	1483	* visible to others on this map. But update_all_los is really
1424	* an inefficient way to do this, as it means los for all players	1484	* an inefficient way to do this, as it means los for all players
1425	* on the map will get recalculated. The players could very well	1485	* on the map will get recalculated. The players could very well
1426	* be far away from this change and not affected in any way -	1486	* be far away from this change and not affected in any way -
1427	* this should get redone to only look for players within range,	1487	* this should get redone to only look for players within range,
1428	* or just updating the P_NEED_UPDATE for spaces within this area	1488	* or just updating the P_UPTODATE for spaces within this area
1429	* of effect may be sufficient.	1489	* of effect may be sufficient.
1430	*/	1490	*/
1431	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1491	if (op->map->darkness && (op->glow_radius != 0))
1432	update_all_los(op->map, op->x, op->y);	1492	update_all_los (op->map, op->x, op->y);
1433		1493
1434
1435	/* updates flags (blocked, alive, no magic, etc) for this map space */	1494	/* updates flags (blocked, alive, no magic, etc) for this map space */
1436	update_object(op,UP_OBJ_INSERT);	1495	update_object (op, UP_OBJ_INSERT);
1437		1496
		1497	INVOKE_OBJECT (INSERT, op);
1438		1498
1439	/* Don't know if moving this to the end will break anything. However,	1499	/* Don't know if moving this to the end will break anything. However,
1440	* we want to have update_look set above before calling this.	1500	* we want to have floorbox_update called before calling this.
1441	*	1501	*
1442	* check_move_on() must be after this because code called from	1502	* check_move_on() must be after this because code called from
1443	* check_move_on() depends on correct map flags (so functions like	1503	* check_move_on() depends on correct map flags (so functions like
1444	* blocked() and wall() work properly), and these flags are updated by	1504	* blocked() and wall() work properly), and these flags are updated by
1445	* update_object().	1505	* update_object().
1446	*/	1506	*/
1447		1507
1448	/* if this is not the head or flag has been passed, don't check walk on status */	1508	/* if this is not the head or flag has been passed, don't check walk on status */
1449
1450	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1509	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
		1510	{
1451	if (check_move_on(op, originator))	1511	if (check_move_on (op, originator))
1452	return NULL;	1512	return 0;
1453		1513
1454	/* If we are a multi part object, lets work our way through the check	1514	/* If we are a multi part object, lets work our way through the check
1455	* walk on's.	1515	* walk on's.
1456	*/	1516	*/
1457	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1517	for (object *tmp = op->more; tmp; tmp = tmp->more)
1458	if (check_move_on (tmp, originator))	1518	if (check_move_on (tmp, originator))
1459	return NULL;	1519	return 0;
1460	}	1520	}
		1521
1461	return op;	1522	return op;
1462	}	1523	}
1463		1524
1464	/* this function inserts an object in the map, but if it	1525	/* this function inserts an object in the map, but if it
1465	* finds an object of its own type, it'll remove that one first.	1526	* finds an object of its own type, it'll remove that one first.
1466	* op is the object to insert it under: supplies x and the map.	1527	* op is the object to insert it under: supplies x and the map.
1467	*/	1528	*/
		1529	void
1468	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1530	replace_insert_ob_in_map (const char *arch_string, object *op)
1469	object *tmp;	1531	{
1470	object *tmp1;
1471
1472	/* first search for itself and remove any old instances */	1532	/* first search for itself and remove any old instances */
1473		1533
1474	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1534	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1475	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1535	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1476	remove_ob(tmp);	1536	tmp->destroy (1);
1477	free_object(tmp);
1478	}
1479	}
1480		1537
1481	tmp1=arch_to_object(find_archetype(arch_string));	1538	object *tmp = arch_to_object (archetype::find (arch_string));
1482		1539
1483		1540	tmp->x = op->x;
1484	tmp1->x = op->x; tmp1->y = op->y;	1541	tmp->y = op->y;
		1542
1485	insert_ob_in_map(tmp1,op->map,op,0);	1543	insert_ob_in_map (tmp, op->map, op, 0);
1486	}
1487
1488	/*
1489	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1490	* is returned contains nr objects, and the remaining parts contains
1491	* the rest (or is removed and freed if that number is 0).
1492	* On failure, NULL is returned, and the reason put into the
1493	* global static errmsg array.
1494	*/
1495
1496	object *get_split_ob(object *orig_ob, uint32 nr) {
1497	object *newob;
1498	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1499
1500	if(orig_ob->nrof<nr) {
1501	sprintf(errmsg,"There are only %d %ss.",
1502	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);
1503	return NULL;
1504	}
1505	newob = object_create_clone(orig_ob);
1506	if((orig_ob->nrof-=nr)<1) {
1507	if ( ! is_removed)
1508	remove_ob(orig_ob);
1509	free_object2(orig_ob, 1);
1510	}
1511	else if ( ! is_removed) {
1512	if(orig_ob->env!=NULL)
1513	sub_weight (orig_ob->env,orig_ob->weight*nr);
1514	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {
1515	strcpy(errmsg, "Tried to split object whose map is not in memory.");
1516	LOG(llevDebug,
1517	"Error, Tried to split object whose map is not in memory.\n");
1518	return NULL;
1519	}
1520	}
1521	newob->nrof=nr;
1522
1523	return newob;
1524	}	1544	}
1525		1545
		1546	object *
		1547	object::insert_at (object *where, object *originator, int flags)
		1548	{
		1549	if (where->env)
		1550	return where->env->insert (this);
		1551	else
		1552	return where->map->insert (this, where->x, where->y, originator, flags);
		1553	}
		1554
1526	/*	1555	/*
1527	* decrease_ob_nr(object, number) decreases a specified number from	1556	* decrease(object, number) decreases a specified number from
1528	* the amount of an object. If the amount reaches 0, the object	1557	* the amount of an object. If the amount reaches 0, the object
1529	* is subsequently removed and freed.	1558	* is subsequently removed and freed.
1530	*	1559	*
1531	* Return value: 'op' if something is left, NULL if the amount reached 0	1560	* Return value: 'op' if something is left, NULL if the amount reached 0
1532	*/	1561	*/
1533		1562	bool
1534	object *decrease_ob_nr (object *op, uint32 i)	1563	object::decrease (sint32 nr)
1535	{	1564	{
1536	object *tmp;	1565	if (!nr)
1537	player *pl;	1566	return true;
1538		1567
1539	if (i == 0) /* objects with op->nrof require this check */	1568	nr = min (nr, nrof);
		1569
		1570	nrof -= nr;
		1571
		1572	if (nrof)
		1573	{
		1574	adjust_weight (env, -weight * nr); // carrying == 0
		1575
		1576	if (object *pl = visible_to ())
		1577	esrv_update_item (UPD_NROF, pl, this);
		1578
		1579	return true;
		1580	}
		1581	else
		1582	{
		1583	destroy (1);
		1584	return false;
		1585	}
		1586	}
		1587
		1588	/*
		1589	* split(ob,nr) splits up ob into two parts. The part which
		1590	* is returned contains nr objects, and the remaining parts contains
		1591	* the rest (or is removed and returned if that number is 0).
		1592	* On failure, NULL is returned.
		1593	*/
		1594	object *
		1595	object::split (sint32 nr)
		1596	{
		1597	int have = number_of ();
		1598
		1599	if (have < nr)
		1600	return 0;
		1601	else if (have == nr)
		1602	{
		1603	remove ();
		1604	return this;
		1605	}
		1606	else
		1607	{
		1608	decrease (nr);
		1609
		1610	object *op = object_create_clone (this);
		1611	op->nrof = nr;
1540	return op;	1612	return op;
1541
1542	if (i > op->nrof)
1543	i = op->nrof;
1544
1545	if (QUERY_FLAG (op, FLAG_REMOVED))
1546	{	1613	}
1547	op->nrof -= i;	1614	}
		1615
		1616	object *
		1617	insert_ob_in_ob (object *op, object *where)
		1618	{
		1619	if (!where)
1548	}	1620	{
1549	else if (op->env != NULL)	1621	char *dump = dump_object (op);
1550	{	1622	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1551	/* is this object in the players inventory, or sub container	1623	free (dump);
1552	* therein?
1553	*/
1554	tmp = is_player_inv (op->env);
1555	/* nope. Is this a container the player has opened?
1556	* If so, set tmp to that player.
1557	* IMO, searching through all the players will mostly
1558	* likely be quicker than following op->env to the map,
1559	* and then searching the map for a player.
1560	*/
1561	if (!tmp) {
1562	for (pl=first_player; pl; pl=pl->next)
1563	if (pl->ob->container == op->env) break;
1564	if (pl) tmp=pl->ob;
1565	else tmp=NULL;
1566	}
1567
1568	if (i < op->nrof) {
1569	sub_weight (op->env, op->weight * i);
1570	op->nrof -= i;
1571	if (tmp) {
1572	esrv_send_item(tmp, op);
1573	}
1574	} else {
1575	remove_ob (op);
1576	op->nrof = 0;
1577	if (tmp) {
1578	esrv_del_item(tmp->contr, op->count);
1579	}
1580	}
1581	}
1582	else
1583	{
1584	object *above = op->above;
1585
1586	if (i < op->nrof) {
1587	op->nrof -= i;
1588	} else {
1589	remove_ob (op);
1590	op->nrof = 0;
1591	}
1592	/* Since we just removed op, op->above is null */
1593	for (tmp = above; tmp != NULL; tmp = tmp->above)
1594	if (tmp->type == PLAYER) {
1595	if (op->nrof)
1596	esrv_send_item(tmp, op);
1597	else
1598	esrv_del_item(tmp->contr, op->count);
1599	}
1600	}
1601
1602	if (op->nrof) {
1603	return op;	1624	return op;
1604	} else {	1625	}
1605	free_object (op);	1626
1606	return NULL;	1627	if (where->head_ () != where)
1607	}	1628	{
1608	}	1629	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1609		1630	where = where->head;
1610	/*
1611	* add_weight(object, weight) adds the specified weight to an object,
1612	* and also updates how much the environment(s) is/are carrying.
1613	*/
1614
1615	void add_weight (object *op, signed long weight) {
1616	while (op!=NULL) {
1617	if (op->type == CONTAINER) {
1618	weight=(signed long)(weight*(100-op->stats.Str)/100);
1619	}
1620	op->carrying+=weight;
1621	op=op->env;
1622	}	1631	}
1623	}
1624		1632
		1633	return where->insert (op);
		1634	}
		1635
1625	/*	1636	/*
1626	* insert_ob_in_ob(op,environment):	1637	* env->insert (op)
1627	* This function inserts the object op in the linked list	1638	* This function inserts the object op in the linked list
1628	* inside the object environment.	1639	* inside the object environment.
1629	*	1640	*
1630	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1631	* the inventory at the last position or next to other objects of the same
1632	* type.
1633	* Frank: Now sorted by type, archetype and magic!
1634	*
1635	* The function returns now pointer to inserted item, and return value can	1641	* The function returns now pointer to inserted item, and return value can
1636	* be != op, if items are merged. -Tero	1642	* be != op, if items are merged. -Tero
1637	*/	1643	*/
1638		1644	object *
1639	object *insert_ob_in_ob(object *op,object *where) {	1645	object::insert (object *op)
1640	object *tmp, *otmp;	1646	{
1641
1642	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1643	dump_object(op);
1644	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);
1645	return op;
1646	}
1647	if(where==NULL) {
1648	dump_object(op);
1649	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1650	return op;
1651	}
1652	if (where->head) {
1653	LOG(llevDebug,
1654	"Warning: Tried to insert object wrong part of multipart object.\n");
1655	where = where->head;
1656	}
1657	if (op->more) {	1647	if (op->more)
		1648	{
1658	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1649	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1659	&op->name, op->count);
1660	return op;	1650	return op;
1661	}	1651	}
1662	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1652
1663	CLEAR_FLAG(op, FLAG_REMOVED);	1653	op->remove ();
		1654
		1655	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1656
1664	if(op->nrof) {	1657	if (op->nrof)
1665	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1658	for (object *tmp = inv; tmp; tmp = tmp->below)
1666	if ( CAN_MERGE(tmp,op) ) {	1659	if (object::can_merge (tmp, op))
		1660	{
1667	/* return the original object and remove inserted object	1661	/* return the original object and remove inserted object
1668	(client needs the original object) */	1662	(client needs the original object) */
1669	tmp->nrof += op->nrof;	1663	tmp->nrof += op->nrof;
1670	/* Weight handling gets pretty funky. Since we are adding to	1664
1671	* tmp->nrof, we need to increase the weight.	1665	if (object *pl = tmp->visible_to ())
1672	*/	1666	esrv_update_item (UPD_NROF, pl, tmp);
1673	add_weight (where, op->weight*op->nrof);	1667
1674	SET_FLAG(op, FLAG_REMOVED);	1668	adjust_weight (this, op->total_weight ());
1675	free_object(op); /* free the inserted object */	1669
		1670	op->destroy (1);
1676	op = tmp;	1671	op = tmp;
1677	remove_ob (op); /* and fix old object's links */	1672	goto inserted;
1678	CLEAR_FLAG(op, FLAG_REMOVED);
1679	break;
1680	}	1673	}
1681		1674
1682	/* I assume combined objects have no inventory	1675	op->owner = 0; // it's his/hers now. period.
1683	* We add the weight - this object could have just been removed	1676	op->map = 0;
1684	* (if it was possible to merge). calling remove_ob will subtract	1677	op->x = 0;
1685	* the weight, so we need to add it in again, since we actually do	1678	op->y = 0;
1686	* the linking below
1687	*/
1688	add_weight (where, op->weight*op->nrof);
1689	} else
1690	add_weight (where, (op->weight+op->carrying));
1691		1679
1692	otmp=is_player_inv(where);
1693	if (otmp&&otmp->contr!=NULL) {
1694	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))
1695	fix_player(otmp);
1696	}
1697
1698	op->map=NULL;
1699	op->env=where;
1700	op->above=NULL;	1680	op->above = 0;
1701	op->below=NULL;	1681	op->below = inv;
1702	op->x=0,op->y=0;	1682	op->env = this;
1703		1683
		1684	if (inv)
		1685	inv->above = op;
		1686
		1687	inv = op;
		1688
		1689	op->flag [FLAG_REMOVED] = 0;
		1690
		1691	if (object *pl = op->visible_to ())
		1692	esrv_send_item (pl, op);
		1693
		1694	adjust_weight (this, op->total_weight ());
		1695
		1696	inserted:
1704	/* reset the light list and los of the players on the map */	1697	/* reset the light list and los of the players on the map */
1705	if((op->glow_radius!=0)&&where->map)	1698	if (op->glow_radius && map && map->darkness)
1706	{	1699	update_all_los (map, x, y);
1707	#ifdef DEBUG_LIGHTS
1708	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",
1709	op->name);
1710	#endif /* DEBUG_LIGHTS */
1711	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);
1712	}
1713		1700
1714	/* Client has no idea of ordering so lets not bother ordering it here.	1701	// if this is a player's inventory, update stats
1715	* It sure simplifies this function...	1702	if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1716	*/	1703	update_stats ();
1717	if (where->inv==NULL)	1704
1718	where->inv=op;	1705	INVOKE_OBJECT (INSERT, this);
1719	else {	1706
1720	op->below = where->inv;
1721	op->below->above = op;
1722	where->inv = op;
1723	}
1724	return op;	1707	return op;
1725	}	1708	}
1726		1709
1727	/*	1710	/*
1728	* Checks if any objects has a move_type that matches objects	1711	* Checks if any objects has a move_type that matches objects
…		…
1742	*	1725	*
1743	* MSW 2001-07-08: Check all objects on space, not just those below	1726	* MSW 2001-07-08: Check all objects on space, not just those below
1744	* object being inserted. insert_ob_in_map may not put new objects	1727	* object being inserted. insert_ob_in_map may not put new objects
1745	* on top.	1728	* on top.
1746	*/	1729	*/
1747		1730	int
1748	int check_move_on (object *op, object *originator)	1731	check_move_on (object *op, object *originator)
1749	{	1732	{
1750	object *tmp;	1733	object *tmp;
1751	tag_t tag;
1752	mapstruct *m=op->map;	1734	maptile *m = op->map;
1753	int x=op->x, y=op->y;	1735	int x = op->x, y = op->y;
		1736
1754	MoveType move_on, move_slow, move_block;	1737	MoveType move_on, move_slow, move_block;
1755		1738
1756	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1739	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1757	return 0;	1740	return 0;
1758		1741
1759	tag = op->count;
1760
1761	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1742	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1762	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1743	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1763	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1744	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1764		1745
1765	/* if nothing on this space will slow op down or be applied,	1746	/* if nothing on this space will slow op down or be applied,
1766	* no need to do checking below. have to make sure move_type	1747	* no need to do checking below. have to make sure move_type
1767	* is set, as lots of objects don't have it set - we treat that	1748	* is set, as lots of objects don't have it set - we treat that
1768	* as walking.	1749	* as walking.
1769	*/	1750	*/
1770	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1751	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1771	return 0;	1752	return 0;
1772		1753
1773	/* This is basically inverse logic of that below - basically,	1754	/* This is basically inverse logic of that below - basically,
1774	* if the object can avoid the move on or slow move, they do so,	1755	* if the object can avoid the move on or slow move, they do so,
1775	* but can't do it if the alternate movement they are using is	1756	* but can't do it if the alternate movement they are using is
1776	* blocked. Logic on this seems confusing, but does seem correct.	1757	* blocked. Logic on this seems confusing, but does seem correct.
1777	*/	1758	*/
1778	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1759	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1779	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1760	return 0;
1780		1761
1781	/* The objects have to be checked from top to bottom.	1762	/* The objects have to be checked from top to bottom.
1782	* Hence, we first go to the top:	1763	* Hence, we first go to the top:
1783	*/	1764	*/
1784		1765
1785	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1766	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1786	tmp->above!=NULL; tmp=tmp->above) {	1767	{
1787	/* Trim the search when we find the first other spell effect	1768	/* Trim the search when we find the first other spell effect
1788	* this helps performance so that if a space has 50 spell objects,	1769	* this helps performance so that if a space has 50 spell objects,
1789	* we don't need to check all of them.	1770	* we don't need to check all of them.
1790	*/	1771	*/
1791	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1772	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1773	break;
		1774	}
		1775
		1776	for (; tmp; tmp = tmp->below)
1792	}	1777	{
1793	for(;tmp!=NULL; tmp=tmp->below) {	1778	if (tmp == op)
1794	if (tmp == op) continue; /* Can't apply yourself */	1779	continue; /* Can't apply yourself */
1795		1780
1796	/* Check to see if one of the movement types should be slowed down.	1781	/* Check to see if one of the movement types should be slowed down.
1797	* Second check makes sure that the movement types not being slowed	1782	* Second check makes sure that the movement types not being slowed
1798	* (~slow_move) is not blocked on this space - just because the	1783	* (~slow_move) is not blocked on this space - just because the
1799	* space doesn't slow down swimming (for example), if you can't actually	1784	* space doesn't slow down swimming (for example), if you can't actually
1800	* swim on that space, can't use it to avoid the penalty.	1785	* swim on that space, can't use it to avoid the penalty.
1801	*/	1786	*/
1802	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1787	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1788	{
1803	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1789	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1804	((op->move_type & tmp->move_slow) &&
1805	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1790	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1791	{
1806		1792
1807	float diff;	1793	float
1808
1809	diff = tmp->move_slow_penalty*FABS(op->speed);	1794	diff = tmp->move_slow_penalty * fabs (op->speed);
		1795
1810	if (op->type == PLAYER) {	1796	if (op->type == PLAYER)
1811	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1797	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1812	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1798	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1813	diff /= 4.0;	1799	diff /= 4.0;
1814	}	1800
1815	}
1816	op->speed_left -= diff;	1801	op->speed_left -= diff;
1817	}	1802	}
1818	}	1803	}
1819		1804
1820	/* Basically same logic as above, except now for actual apply. */	1805	/* Basically same logic as above, except now for actual apply. */
1821	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1806	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1822	((op->move_type & tmp->move_on) &&
1823	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1807	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1824		1808	{
1825	move_apply(tmp, op, originator);	1809	move_apply (tmp, op, originator);
		1810
1826	if (was_destroyed (op, tag))	1811	if (op->destroyed ())
1827	return 1;	1812	return 1;
1828		1813
1829	/* what the person/creature stepped onto has moved the object	1814	/* what the person/creature stepped onto has moved the object
1830	* someplace new. Don't process any further - if we did,	1815	* someplace new. Don't process any further - if we did,
1831	* have a feeling strange problems would result.	1816	* have a feeling strange problems would result.
1832	*/	1817	*/
1833	if (op->map != m || op->x != x || op->y != y) return 0;	1818	if (op->map != m || op->x != x || op->y != y)
		1819	return 0;
1834	}	1820	}
1835	}	1821	}
		1822
1836	return 0;	1823	return 0;
1837	}	1824	}
1838		1825
1839	/*	1826	/*
1840	* present_arch(arch, map, x, y) searches for any objects with	1827	* present_arch(arch, map, x, y) searches for any objects with
1841	* a matching archetype at the given map and coordinates.	1828	* a matching archetype at the given map and coordinates.
1842	* The first matching object is returned, or NULL if none.	1829	* The first matching object is returned, or NULL if none.
1843	*/	1830	*/
1844		1831	object *
1845	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1832	present_arch (const archetype *at, maptile *m, int x, int y)
1846	object *tmp;	1833	{
1847	if(m==NULL || out_of_map(m,x,y)) {	1834	if (!m || out_of_map (m, x, y))
		1835	{
1848	LOG(llevError,"Present_arch called outside map.\n");	1836	LOG (llevError, "Present_arch called outside map.\n");
1849	return NULL;	1837	return NULL;
1850	}	1838	}
1851	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1839
		1840	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1852	if(tmp->arch == at)	1841	if (tmp->arch == at)
1853	return tmp;	1842	return tmp;
		1843
1854	return NULL;	1844	return NULL;
1855	}	1845	}
1856		1846
1857	/*	1847	/*
1858	* present(type, map, x, y) searches for any objects with	1848	* present(type, map, x, y) searches for any objects with
1859	* a matching type variable at the given map and coordinates.	1849	* a matching type variable at the given map and coordinates.
1860	* The first matching object is returned, or NULL if none.	1850	* The first matching object is returned, or NULL if none.
1861	*/	1851	*/
1862		1852	object *
1863	object *present(unsigned char type,mapstruct *m, int x,int y) {	1853	present (unsigned char type, maptile *m, int x, int y)
1864	object *tmp;	1854	{
1865	if(out_of_map(m,x,y)) {	1855	if (out_of_map (m, x, y))
		1856	{
1866	LOG(llevError,"Present called outside map.\n");	1857	LOG (llevError, "Present called outside map.\n");
1867	return NULL;	1858	return NULL;
1868	}	1859	}
1869	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1860
		1861	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1870	if(tmp->type==type)	1862	if (tmp->type == type)
1871	return tmp;	1863	return tmp;
		1864
1872	return NULL;	1865	return NULL;
1873	}	1866	}
1874		1867
1875	/*	1868	/*
1876	* present_in_ob(type, object) searches for any objects with	1869	* present_in_ob(type, object) searches for any objects with
1877	* a matching type variable in the inventory of the given object.	1870	* a matching type variable in the inventory of the given object.
1878	* The first matching object is returned, or NULL if none.	1871	* The first matching object is returned, or NULL if none.
1879	*/	1872	*/
1880		1873	object *
1881	object *present_in_ob(unsigned char type, const object *op) {	1874	present_in_ob (unsigned char type, const object *op)
1882	object *tmp;	1875	{
1883	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1876	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1884	if(tmp->type==type)	1877	if (tmp->type == type)
1885	return tmp;	1878	return tmp;
		1879
1886	return NULL;	1880	return NULL;
1887	}	1881	}
1888		1882
1889	/*	1883	/*
1890	* present_in_ob (type, str, object) searches for any objects with	1884	* present_in_ob (type, str, object) searches for any objects with
…		…
1898	* str is the string to match against. Note that we match against	1892	* str is the string to match against. Note that we match against
1899	* the object name, not the archetype name. this is so that the	1893	* the object name, not the archetype name. this is so that the
1900	* spell code can use one object type (force), but change it's name	1894	* spell code can use one object type (force), but change it's name
1901	* to be unique.	1895	* to be unique.
1902	*/	1896	*/
1903		1897	object *
1904	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1898	present_in_ob_by_name (int type, const char *str, const object *op)
1905	object *tmp;	1899	{
1906
1907	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1900	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1908	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1901	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1909	return tmp;	1902	return tmp;
1910	}	1903
1911	return NULL;	1904	return 0;
1912	}	1905	}
1913		1906
1914	/*	1907	/*
1915	* present_arch_in_ob(archetype, object) searches for any objects with	1908	* present_arch_in_ob(archetype, object) searches for any objects with
1916	* a matching archetype in the inventory of the given object.	1909	* a matching archetype in the inventory of the given object.
1917	* The first matching object is returned, or NULL if none.	1910	* The first matching object is returned, or NULL if none.
1918	*/	1911	*/
1919		1912	object *
1920	object *present_arch_in_ob(const archetype *at, const object *op) {	1913	present_arch_in_ob (const archetype *at, const object *op)
1921	object *tmp;	1914	{
1922	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1915	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1923	if( tmp->arch == at)	1916	if (tmp->arch == at)
1924	return tmp;	1917	return tmp;
		1918
1925	return NULL;	1919	return NULL;
1926	}	1920	}
1927		1921
1928	/*	1922	/*
1929	* activate recursively a flag on an object inventory	1923	* activate recursively a flag on an object inventory
1930	*/	1924	*/
		1925	void
1931	void flag_inv(object*op, int flag){	1926	flag_inv (object *op, int flag)
1932	object *tmp;	1927	{
1933	if(op->inv)
1934	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1928	for (object *tmp = op->inv; tmp; tmp = tmp->below)
		1929	{
1935	SET_FLAG(tmp, flag);	1930	SET_FLAG (tmp, flag);
1936	flag_inv(tmp,flag);	1931	flag_inv (tmp, flag);
1937	}	1932	}
		1933	}
		1934
1938	}/*	1935	/*
1939	* desactivate recursively a flag on an object inventory	1936	* deactivate recursively a flag on an object inventory
1940	*/	1937	*/
		1938	void
1941	void unflag_inv(object*op, int flag){	1939	unflag_inv (object *op, int flag)
1942	object *tmp;	1940	{
1943	if(op->inv)
1944	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1941	for (object *tmp = op->inv; tmp; tmp = tmp->below)
		1942	{
1945	CLEAR_FLAG(tmp, flag);	1943	CLEAR_FLAG (tmp, flag);
1946	unflag_inv(tmp,flag);	1944	unflag_inv (tmp, flag);
1947	}	1945	}
1948	}
1949
1950	/*
1951	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1952	* all it's inventory (recursively).
1953	* If checksums are used, a player will get set_cheat called for
1954	* him/her-self and all object carried by a call to this function.
1955	*/
1956
1957	void set_cheat(object *op) {
1958	SET_FLAG(op, FLAG_WAS_WIZ);
1959	flag_inv(op, FLAG_WAS_WIZ);
1960	}	1946	}
1961		1947
1962	/*	1948	/*
1963	* find_free_spot(object, map, x, y, start, stop) will search for	1949	* find_free_spot(object, map, x, y, start, stop) will search for
1964	* a spot at the given map and coordinates which will be able to contain	1950	* a spot at the given map and coordinates which will be able to contain
…		…
1966	* to search (see the freearr_x/y[] definition).	1952	* to search (see the freearr_x/y[] definition).
1967	* It returns a random choice among the alternatives found.	1953	* It returns a random choice among the alternatives found.
1968	* start and stop are where to start relative to the free_arr array (1,9	1954	* start and stop are where to start relative to the free_arr array (1,9
1969	* does all 4 immediate directions). This returns the index into the	1955	* does all 4 immediate directions). This returns the index into the
1970	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1956	* array of the free spot, -1 if no spot available (dir 0 = x,y)
1971	* Note - this only checks to see if there is space for the head of the
1972	* object - if it is a multispace object, this should be called for all
1973	* pieces.
1974	* Note2: This function does correctly handle tiled maps, but does not	1957	* Note: This function does correctly handle tiled maps, but does not
1975	* inform the caller. However, insert_ob_in_map will update as	1958	* inform the caller. However, insert_ob_in_map will update as
1976	* necessary, so the caller shouldn't need to do any special work.	1959	* necessary, so the caller shouldn't need to do any special work.
1977	* Note - updated to take an object instead of archetype - this is necessary	1960	* Note - updated to take an object instead of archetype - this is necessary
1978	* because arch_blocked (now ob_blocked) needs to know the movement type	1961	* because arch_blocked (now ob_blocked) needs to know the movement type
1979	* to know if the space in question will block the object. We can't use	1962	* to know if the space in question will block the object. We can't use
1980	* the archetype because that isn't correct if the monster has been	1963	* the archetype because that isn't correct if the monster has been
1981	* customized, changed states, etc.	1964	* customized, changed states, etc.
1982	*/	1965	*/
1983		1966	int
1984	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	1967	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		1968	{
		1969	int altern[SIZEOFFREE];
1985	int i,index=0, flag;	1970	int index = 0, flag;
1986	static int altern[SIZEOFFREE];
1987		1971
1988	for(i=start;i<stop;i++) {	1972	for (int i = start; i < stop; i++)
1989	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	1973	{
1990	if(!flag)	1974	mapxy pos (m, x, y); pos.move (i);
		1975
		1976	if (!pos.normalise ())
		1977	continue;
		1978
		1979	mapspace &ms = *pos;
		1980
		1981	if (ms.flags () & P_IS_ALIVE)
		1982	continue;
		1983
		1984	/* However, often
		1985	* ob doesn't have any move type (when used to place exits)
		1986	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1987	*/
		1988	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1989	{
1991	altern[index++]=i;	1990	altern [index++] = i;
		1991	continue;
		1992	}
1992		1993
1993	/* Basically, if we find a wall on a space, we cut down the search size.	1994	/* Basically, if we find a wall on a space, we cut down the search size.
1994	* In this way, we won't return spaces that are on another side of a wall.	1995	* In this way, we won't return spaces that are on another side of a wall.
1995	* This mostly work, but it cuts down the search size in all directions -	1996	* This mostly work, but it cuts down the search size in all directions -
1996	* if the space being examined only has a wall to the north and empty	1997	* if the space being examined only has a wall to the north and empty
1997	* spaces in all the other directions, this will reduce the search space	1998	* spaces in all the other directions, this will reduce the search space
1998	* to only the spaces immediately surrounding the target area, and	1999	* to only the spaces immediately surrounding the target area, and
1999	* won't look 2 spaces south of the target space.	2000	* won't look 2 spaces south of the target space.
2000	*/	2001	*/
2001	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2002	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		2003	{
2002	stop=maxfree[i];	2004	stop = maxfree[i];
2003	}	2005	continue;
2004	if(!index) return -1;	2006	}
2005	return altern[RANDOM()%index];
2006	}
2007		2007
		2008	/* Note it is intentional that we check ob - the movement type of the
		2009	* head of the object should correspond for the entire object.
		2010	*/
		2011	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		2012	continue;
		2013
		2014	if (ob->blocked (m, pos.x, pos.y))
		2015	continue;
		2016
		2017	altern [index++] = i;
		2018	}
		2019
		2020	if (!index)
		2021	return -1;
		2022
		2023	return altern [rndm (index)];
		2024	}
		2025
2008	/*	2026	/*
2009	* find_first_free_spot(archetype, mapstruct, x, y) works like	2027	* find_first_free_spot(archetype, maptile, x, y) works like
2010	* find_free_spot(), but it will search max number of squares.	2028	* find_free_spot(), but it will search max number of squares.
2011	* But it will return the first available spot, not a random choice.	2029	* But it will return the first available spot, not a random choice.
2012	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2030	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2013	*/	2031	*/
2014		2032	int
2015	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2033	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2016	int i;	2034	{
2017	for(i=0;i<SIZEOFFREE;i++) {	2035	for (int i = 0; i < SIZEOFFREE; i++)
2018	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2036	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2019	return i;	2037	return i;
2020	}	2038
2021	return -1;	2039	return -1;
2022	}	2040	}
2023		2041
2024	/*	2042	/*
2025	* The function permute(arr, begin, end) randomly reorders the array	2043	* The function permute(arr, begin, end) randomly reorders the array
2026	* arr[begin..end-1].	2044	* arr[begin..end-1].
		2045	* now uses a fisher-yates shuffle, old permute was broken
2027	*/	2046	*/
		2047	static void
2028	static void permute(int *arr, int begin, int end)	2048	permute (int *arr, int begin, int end)
2029	{	2049	{
2030	int i, j, tmp, len;	2050	arr += begin;
		2051	end -= begin;
2031		2052
2032	len = end-begin;	2053	while (--end)
2033	for(i = begin; i < end; i++)	2054	swap (arr [end], arr [rndm (end + 1)]);
2034	{
2035	j = begin+RANDOM()%len;
2036
2037	tmp = arr[i];
2038	arr[i] = arr[j];
2039	arr[j] = tmp;
2040	}
2041	}	2055	}
2042		2056
2043	/* new function to make monster searching more efficient, and effective!	2057	/* new function to make monster searching more efficient, and effective!
2044	* This basically returns a randomized array (in the passed pointer) of	2058	* This basically returns a randomized array (in the passed pointer) of
2045	* the spaces to find monsters. In this way, it won't always look for	2059	* the spaces to find monsters. In this way, it won't always look for
2046	* monsters to the north first. However, the size of the array passed	2060	* monsters to the north first. However, the size of the array passed
2047	* covers all the spaces, so within that size, all the spaces within	2061	* covers all the spaces, so within that size, all the spaces within
2048	* the 3x3 area will be searched, just not in a predictable order.	2062	* the 3x3 area will be searched, just not in a predictable order.
2049	*/	2063	*/
		2064	void
2050	void get_search_arr(int *search_arr)	2065	get_search_arr (int *search_arr)
2051	{	2066	{
2052	int i;	2067	int i;
2053		2068
2054	for(i = 0; i < SIZEOFFREE; i++)	2069	for (i = 0; i < SIZEOFFREE; i++)
2055	{
2056	search_arr[i] = i;	2070	search_arr[i] = i;
2057	}
2058		2071
2059	permute(search_arr, 1, SIZEOFFREE1+1);	2072	permute (search_arr, 1, SIZEOFFREE1 + 1);
2060	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2073	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2061	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2074	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2062	}	2075	}
2063		2076
2064	/*	2077	/*
2065	* find_dir(map, x, y, exclude) will search some close squares in the	2078	* find_dir(map, x, y, exclude) will search some close squares in the
2066	* given map at the given coordinates for live objects.	2079	* given map at the given coordinates for live objects.
…		…
2071	* Perhaps incorrectly, but I'm making the assumption that exclude	2084	* Perhaps incorrectly, but I'm making the assumption that exclude
2072	* is actually want is going to try and move there. We need this info	2085	* is actually want is going to try and move there. We need this info
2073	* because we have to know what movement the thing looking to move	2086	* because we have to know what movement the thing looking to move
2074	* there is capable of.	2087	* there is capable of.
2075	*/	2088	*/
2076		2089	int
2077	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2090	find_dir (maptile *m, int x, int y, object *exclude)
		2091	{
2078	int i,max=SIZEOFFREE, mflags;	2092	int i, max = SIZEOFFREE, mflags;
		2093
2079	sint16 nx, ny;	2094	sint16 nx, ny;
2080	object *tmp;	2095	object *tmp;
2081	mapstruct *mp;	2096	maptile *mp;
		2097
2082	MoveType blocked, move_type;	2098	MoveType blocked, move_type;
2083		2099
2084	if (exclude && exclude->head) {	2100	if (exclude && exclude->head_ () != exclude)
		2101	{
2085	exclude = exclude->head;	2102	exclude = exclude->head;
2086	move_type = exclude->move_type;	2103	move_type = exclude->move_type;
2087	} else {	2104	}
		2105	else
		2106	{
2088	/* If we don't have anything, presume it can use all movement types. */	2107	/* If we don't have anything, presume it can use all movement types. */
2089	move_type=MOVE_ALL;	2108	move_type = MOVE_ALL;
		2109	}
		2110
		2111	for (i = 1; i < max; i++)
2090	}	2112	{
2091
2092	for(i=1;i<max;i++) {
2093	mp = m;	2113	mp = m;
2094	nx = x + freearr_x[i];	2114	nx = x + freearr_x[i];
2095	ny = y + freearr_y[i];	2115	ny = y + freearr_y[i];
2096		2116
2097	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2117	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2118
2098	if (mflags & P_OUT_OF_MAP) {	2119	if (mflags & P_OUT_OF_MAP)
		2120	max = maxfree[i];
		2121	else
		2122	{
		2123	mapspace &ms = mp->at (nx, ny);
		2124
		2125	blocked = ms.move_block;
		2126
		2127	if ((move_type & blocked) == move_type)
2099	max = maxfree[i];	2128	max = maxfree[i];
2100	} else {
2101	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2102
2103	if ((move_type & blocked) == move_type) {
2104	max=maxfree[i];
2105	} else if (mflags & P_IS_ALIVE) {	2129	else if (mflags & P_IS_ALIVE)
2106	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2130	{
		2131	for (tmp = ms.bot; tmp; tmp = tmp->above)
2107	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2132	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2108	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2133	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2109	break;	2134	break;
2110	}	2135
2111	}
2112	if(tmp) {	2136	if (tmp)
2113	return freedir[i];	2137	return freedir[i];
2114	}
2115	}	2138	}
2116	}	2139	}
2117	}	2140	}
		2141
2118	return 0;	2142	return 0;
2119	}	2143	}
2120		2144
2121	/*	2145	/*
2122	* distance(object 1, object 2) will return the square of the	2146	* distance(object 1, object 2) will return the square of the
2123	* distance between the two given objects.	2147	* distance between the two given objects.
2124	*/	2148	*/
2125		2149	int
2126	int distance(const object *ob1, const object *ob2) {	2150	distance (const object *ob1, const object *ob2)
2127	int i;	2151	{
2128	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2152	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2129	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2130	return i;
2131	}	2153	}
2132		2154
2133	/*	2155	/*
2134	* find_dir_2(delta-x,delta-y) will return a direction in which	2156	* find_dir_2(delta-x,delta-y) will return a direction in which
2135	* an object which has subtracted the x and y coordinates of another	2157	* an object which has subtracted the x and y coordinates of another
2136	* object, needs to travel toward it.	2158	* object, needs to travel toward it.
2137	*/	2159	*/
2138		2160	int
2139	int find_dir_2(int x, int y) {	2161	find_dir_2 (int x, int y)
		2162	{
2140	int q;	2163	int q;
2141		2164
2142	if(y)	2165	if (y)
2143	q=x*100/y;	2166	q = x * 100 / y;
2144	else if (x)	2167	else if (x)
2145	q= -300*x;	2168	q = -300 * x;
2146	else	2169	else
2147	return 0;	2170	return 0;
2148		2171
2149	if(y>0) {	2172	if (y > 0)
		2173	{
2150	if(q < -242)	2174	if (q < -242)
2151	return 3 ;	2175	return 3;
2152	if (q < -41)	2176	if (q < -41)
2153	return 2 ;	2177	return 2;
2154	if (q < 41)	2178	if (q < 41)
2155	return 1 ;	2179	return 1;
2156	if (q < 242)	2180	if (q < 242)
2157	return 8 ;	2181	return 8;
2158	return 7 ;	2182	return 7;
2159	}	2183	}
2160		2184
2161	if (q < -242)	2185	if (q < -242)
2162	return 7 ;	2186	return 7;
2163	if (q < -41)	2187	if (q < -41)
2164	return 6 ;	2188	return 6;
2165	if (q < 41)	2189	if (q < 41)
2166	return 5 ;	2190	return 5;
2167	if (q < 242)	2191	if (q < 242)
2168	return 4 ;	2192	return 4;
2169		2193
2170	return 3 ;	2194	return 3;
2171	}
2172
2173	/*
2174	* absdir(int): Returns a number between 1 and 8, which represent
2175	* the "absolute" direction of a number (it actually takes care of
2176	* "overflow" in previous calculations of a direction).
2177	*/
2178
2179	int absdir(int d) {
2180	while(d<1) d+=8;
2181	while(d>8) d-=8;
2182	return d;
2183	}	2195	}
2184		2196
2185	/*	2197	/*
2186	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2198	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2187	* between two directions (which are expected to be absolute (see absdir())	2199	* between two directions (which are expected to be absolute (see absdir())
2188	*/	2200	*/
2189		2201	int
2190	int dirdiff(int dir1, int dir2) {	2202	dirdiff (int dir1, int dir2)
		2203	{
2191	int d;	2204	int d;
		2205
2192	d = abs(dir1 - dir2);	2206	d = abs (dir1 - dir2);
2193	if(d>4)	2207	if (d > 4)
2194	d = 8 - d;	2208	d = 8 - d;
		2209
2195	return d;	2210	return d;
2196	}	2211	}
2197		2212
2198	/* peterm:	2213	/* peterm:
2199	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2214	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2202	* This basically means that if direction is 15, then it could either go	2217	* This basically means that if direction is 15, then it could either go
2203	* direction 4, 14, or 16 to get back to where we are.	2218	* direction 4, 14, or 16 to get back to where we are.
2204	* Moved from spell_util.c to object.c with the other related direction	2219	* Moved from spell_util.c to object.c with the other related direction
2205	* functions.	2220	* functions.
2206	*/	2221	*/
2207
2208	int reduction_dir[SIZEOFFREE][3] = {	2222	int reduction_dir[SIZEOFFREE][3] = {
2209	{0,0,0}, /* 0 */	2223	{0, 0, 0}, /* 0 */
2210	{0,0,0}, /* 1 */	2224	{0, 0, 0}, /* 1 */
2211	{0,0,0}, /* 2 */	2225	{0, 0, 0}, /* 2 */
2212	{0,0,0}, /* 3 */	2226	{0, 0, 0}, /* 3 */
2213	{0,0,0}, /* 4 */	2227	{0, 0, 0}, /* 4 */
2214	{0,0,0}, /* 5 */	2228	{0, 0, 0}, /* 5 */
2215	{0,0,0}, /* 6 */	2229	{0, 0, 0}, /* 6 */
2216	{0,0,0}, /* 7 */	2230	{0, 0, 0}, /* 7 */
2217	{0,0,0}, /* 8 */	2231	{0, 0, 0}, /* 8 */
2218	{8,1,2}, /* 9 */	2232	{8, 1, 2}, /* 9 */
2219	{1,2,-1}, /* 10 */	2233	{1, 2, -1}, /* 10 */
2220	{2,10,12}, /* 11 */	2234	{2, 10, 12}, /* 11 */
2221	{2,3,-1}, /* 12 */	2235	{2, 3, -1}, /* 12 */
2222	{2,3,4}, /* 13 */	2236	{2, 3, 4}, /* 13 */
2223	{3,4,-1}, /* 14 */	2237	{3, 4, -1}, /* 14 */
2224	{4,14,16}, /* 15 */	2238	{4, 14, 16}, /* 15 */
2225	{5,4,-1}, /* 16 */	2239	{5, 4, -1}, /* 16 */
2226	{4,5,6}, /* 17 */	2240	{4, 5, 6}, /* 17 */
2227	{6,5,-1}, /* 18 */	2241	{6, 5, -1}, /* 18 */
2228	{6,20,18}, /* 19 */	2242	{6, 20, 18}, /* 19 */
2229	{7,6,-1}, /* 20 */	2243	{7, 6, -1}, /* 20 */
2230	{6,7,8}, /* 21 */	2244	{6, 7, 8}, /* 21 */
2231	{7,8,-1}, /* 22 */	2245	{7, 8, -1}, /* 22 */
2232	{8,22,24}, /* 23 */	2246	{8, 22, 24}, /* 23 */
2233	{8,1,-1}, /* 24 */	2247	{8, 1, -1}, /* 24 */
2234	{24,9,10}, /* 25 */	2248	{24, 9, 10}, /* 25 */
2235	{9,10,-1}, /* 26 */	2249	{9, 10, -1}, /* 26 */
2236	{10,11,-1}, /* 27 */	2250	{10, 11, -1}, /* 27 */
2237	{27,11,29}, /* 28 */	2251	{27, 11, 29}, /* 28 */
2238	{11,12,-1}, /* 29 */	2252	{11, 12, -1}, /* 29 */
2239	{12,13,-1}, /* 30 */	2253	{12, 13, -1}, /* 30 */
2240	{12,13,14}, /* 31 */	2254	{12, 13, 14}, /* 31 */
2241	{13,14,-1}, /* 32 */	2255	{13, 14, -1}, /* 32 */
2242	{14,15,-1}, /* 33 */	2256	{14, 15, -1}, /* 33 */
2243	{33,15,35}, /* 34 */	2257	{33, 15, 35}, /* 34 */
2244	{16,15,-1}, /* 35 */	2258	{16, 15, -1}, /* 35 */
2245	{17,16,-1}, /* 36 */	2259	{17, 16, -1}, /* 36 */
2246	{18,17,16}, /* 37 */	2260	{18, 17, 16}, /* 37 */
2247	{18,17,-1}, /* 38 */	2261	{18, 17, -1}, /* 38 */
2248	{18,19,-1}, /* 39 */	2262	{18, 19, -1}, /* 39 */
2249	{41,19,39}, /* 40 */	2263	{41, 19, 39}, /* 40 */
2250	{19,20,-1}, /* 41 */	2264	{19, 20, -1}, /* 41 */
2251	{20,21,-1}, /* 42 */	2265	{20, 21, -1}, /* 42 */
2252	{20,21,22}, /* 43 */	2266	{20, 21, 22}, /* 43 */
2253	{21,22,-1}, /* 44 */	2267	{21, 22, -1}, /* 44 */
2254	{23,22,-1}, /* 45 */	2268	{23, 22, -1}, /* 45 */
2255	{45,47,23}, /* 46 */	2269	{45, 47, 23}, /* 46 */
2256	{23,24,-1}, /* 47 */	2270	{23, 24, -1}, /* 47 */
2257	{24,9,-1}}; /* 48 */	2271	{24, 9, -1}
		2272	}; /* 48 */
2258		2273
2259	/* Recursive routine to step back and see if we can	2274	/* Recursive routine to step back and see if we can
2260	* find a path to that monster that we found. If not,	2275	* find a path to that monster that we found. If not,
2261	* we don't bother going toward it. Returns 1 if we	2276	* we don't bother going toward it. Returns 1 if we
2262	* can see a direct way to get it	2277	* can see a direct way to get it
2263	* Modified to be map tile aware -.MSW	2278	* Modified to be map tile aware -.MSW
2264	*/	2279	*/
2265		2280	int
2266
2267	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2281	can_see_monsterP (maptile *m, int x, int y, int dir)
		2282	{
2268	sint16 dx, dy;	2283	sint16 dx, dy;
2269	int mflags;	2284	int mflags;
2270		2285
		2286	if (dir < 0)
2271	if(dir<0) return 0; /* exit condition: invalid direction */	2287	return 0; /* exit condition: invalid direction */
2272		2288
2273	dx = x + freearr_x[dir];	2289	dx = x + freearr_x[dir];
2274	dy = y + freearr_y[dir];	2290	dy = y + freearr_y[dir];
2275		2291
2276	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2292	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2277		2293
2278	/* This functional arguably was incorrect before - it was	2294	/* This functional arguably was incorrect before - it was
2279	* checking for P_WALL - that was basically seeing if	2295	* checking for P_WALL - that was basically seeing if
2280	* we could move to the monster - this is being more	2296	* we could move to the monster - this is being more
2281	* literal on if we can see it. To know if we can actually	2297	* literal on if we can see it. To know if we can actually
2282	* move to the monster, we'd need the monster passed in or	2298	* move to the monster, we'd need the monster passed in or
2283	* at least its move type.	2299	* at least its move type.
2284	*/	2300	*/
2285	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2301	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2302	return 0;
2286		2303
2287	/* yes, can see. */	2304	/* yes, can see. */
2288	if(dir < 9) return 1;	2305	if (dir < 9)
		2306	return 1;
		2307
2289	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2308	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2290	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2309	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2291	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2310	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2292	}	2311	}
2293		2312
2294
2295
2296	/*	2313	/*
2297	* can_pick(picker, item): finds out if an object is possible to be	2314	* can_pick(picker, item): finds out if an object is possible to be
2298	* picked up by the picker. Returnes 1 if it can be	2315	* picked up by the picker. Returnes 1 if it can be
2299	* picked up, otherwise 0.	2316	* picked up, otherwise 0.
2300	*	2317	*
2301	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2318	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2302	* core dumps if they do.	2319	* core dumps if they do.
2303	*	2320	*
2304	* Add a check so we can't pick up invisible objects (0.93.8)	2321	* Add a check so we can't pick up invisible objects (0.93.8)
2305	*/	2322	*/
2306		2323	int
2307	int can_pick(const object *who, const object *item) {	2324	can_pick (const object *who, const object *item)
		2325	{
2308	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2326	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2309	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2327	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2310	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2328	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2311	(who->type==PLAYER||item->weight<who->weight/3));
2312	}	2329	}
2313
2314		2330
2315	/*	2331	/*
2316	* create clone from object to another	2332	* create clone from object to another
2317	*/	2333	*/
		2334	object *
2318	object *object_create_clone (object *asrc) {	2335	object_create_clone (object *asrc)
		2336	{
2319	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2337	object *dst = 0, *tmp, *src, *prev, *item;
2320		2338
2321	if(!asrc) return NULL;	2339	if (!asrc)
2322	src = asrc;	2340	return 0;
2323	if(src->head)	2341
2324	src = src->head;	2342	src = asrc->head_ ();
2325		2343
2326	prev = NULL;	2344	prev = 0;
2327	for(part = src; part; part = part->more) {	2345	for (object *part = src; part; part = part->more)
2328	tmp = get_object();	2346	{
2329	copy_object(part,tmp);	2347	tmp = part->clone ();
2330	tmp->x -= src->x;	2348	tmp->x -= src->x;
2331	tmp->y -= src->y;	2349	tmp->y -= src->y;
		2350
2332	if(!part->head) {	2351	if (!part->head)
		2352	{
2333	dst = tmp;	2353	dst = tmp;
2334	tmp->head = NULL;
2335	} else {
2336	tmp->head = dst;	2354	tmp->head = 0;
2337	}	2355	}
		2356	else
		2357	tmp->head = dst;
		2358
2338	tmp->more = NULL;	2359	tmp->more = 0;
		2360
2339	if(prev)	2361	if (prev)
2340	prev->more = tmp;	2362	prev->more = tmp;
		2363
2341	prev = tmp;	2364	prev = tmp;
2342	}	2365	}
2343	/*** copy inventory ***/	2366
2344	for(item = src->inv; item; item = item->below) {	2367	for (item = src->inv; item; item = item->below)
2345	(void) insert_ob_in_ob(object_create_clone(item),dst);	2368	insert_ob_in_ob (object_create_clone (item), dst);
2346	}
2347		2369
2348	return dst;	2370	return dst;
2349	}
2350
2351	/* return true if the object was destroyed, 0 otherwise */
2352	int was_destroyed (const object *op, tag_t old_tag)
2353	{
2354	/* checking for FLAG_FREED isn't necessary, but makes this function more
2355	* robust */
2356	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2357	}
2358
2359	/* GROS - Creates an object using a string representing its content. */
2360	/* Basically, we save the content of the string to a temp file, then call */
2361	/* load_object on it. I admit it is a highly inefficient way to make things, */
2362	/* but it was simple to make and allows reusing the load_object function. */
2363	/* Remember not to use load_object_str in a time-critical situation. */
2364	/* Also remember that multiparts objects are not supported for now. */
2365
2366	object* load_object_str(const char *obstr)
2367	{
2368	object *op;
2369	char filename[MAX_BUF];
2370	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);
2371
2372	FILE *tempfile=fopen(filename,"w");
2373	if (tempfile == NULL)
2374	{
2375	LOG(llevError,"Error - Unable to access load object temp file\n");
2376	return NULL;
2377	};
2378	fprintf(tempfile,obstr);
2379	fclose(tempfile);
2380
2381	op=get_object();
2382
2383	object_thawer thawer (filename);
2384
2385	if (thawer)
2386	load_object(thawer,op,0);
2387
2388	LOG(llevDebug," load str completed, object=%s\n", &op->name);
2389	CLEAR_FLAG(op,FLAG_REMOVED);
2390
2391	return op;
2392	}	2371	}
2393		2372
2394	/* This returns the first object in who's inventory that	2373	/* This returns the first object in who's inventory that
2395	* has the same type and subtype match.	2374	* has the same type and subtype match.
2396	* returns NULL if no match.	2375	* returns NULL if no match.
2397	*/	2376	*/
		2377	object *
2398	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2378	find_obj_by_type_subtype (const object *who, int type, int subtype)
2399	{	2379	{
2400	object *tmp;
2401
2402	for (tmp=who->inv; tmp; tmp=tmp->below)	2380	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2403	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2381	if (tmp->type == type && tmp->subtype == subtype)
		2382	return tmp;
2404		2383
2405	return NULL;	2384	return 0;
2406	}	2385	}
2407		2386
2408	/* If ob has a field named key, return the link from the list,	2387	/* If ob has a field named key, return the link from the list,
2409	* otherwise return NULL.	2388	* otherwise return NULL.
2410	*	2389	*
2411	* key must be a passed in shared string - otherwise, this won't	2390	* key must be a passed in shared string - otherwise, this won't
2412	* do the desired thing.	2391	* do the desired thing.
2413	*/	2392	*/
		2393	key_value *
2414	key_value * get_ob_key_link(const object * ob, const char * key) {	2394	get_ob_key_link (const object *ob, const char *key)
2415	key_value * link;	2395	{
2416
2417	for (link = ob->key_values; link != NULL; link = link->next) {	2396	for (key_value *link = ob->key_values; link; link = link->next)
2418	if (link->key == key) {	2397	if (link->key == key)
2419	return link;	2398	return link;
2420	}	2399
2421	}	2400	return 0;
2422		2401	}
2423	return NULL;
2424	}
2425		2402
2426	/*	2403	/*
2427	* Returns the value of op has an extra_field for key, or NULL.	2404	* Returns the value of op has an extra_field for key, or NULL.
2428	*	2405	*
2429	* The argument doesn't need to be a shared string.	2406	* The argument doesn't need to be a shared string.
2430	*	2407	*
2431	* The returned string is shared.	2408	* The returned string is shared.
2432	*/	2409	*/
		2410	const char *
2433	const char * get_ob_key_value(const object * op, const char * const key) {	2411	get_ob_key_value (const object *op, const char *const key)
		2412	{
2434	key_value * link;	2413	key_value *link;
2435	const char * canonical_key;	2414	shstr_cmp canonical_key (key);
		2415
		2416	if (!canonical_key)
2436		2417	{
2437	canonical_key = shstr::find (key);
2438
2439	if (canonical_key == NULL) {
2440	/* 1. There being a field named key on any object	2418	/* 1. There being a field named key on any object
2441	* implies there'd be a shared string to find.	2419	* implies there'd be a shared string to find.
2442	* 2. Since there isn't, no object has this field.	2420	* 2. Since there isn't, no object has this field.
2443	* 3. Therefore, *this* object doesn't have this field.	2421	* 3. Therefore, *this* object doesn't have this field.
2444	*/	2422	*/
2445	return NULL;	2423	return 0;
2446	}	2424	}
2447		2425
2448	/* This is copied from get_ob_key_link() above -	2426	/* This is copied from get_ob_key_link() above -
2449	* only 4 lines, and saves the function call overhead.	2427	* only 4 lines, and saves the function call overhead.
2450	*/	2428	*/
2451	for (link = op->key_values; link != NULL; link = link->next) {	2429	for (link = op->key_values; link; link = link->next)
2452	if (link->key == canonical_key) {	2430	if (link->key == canonical_key)
2453	return link->value;	2431	return link->value;
2454	}
2455	}
2456	return NULL;
2457	}
2458		2432
		2433	return 0;
		2434	}
2459		2435
2460	/*	2436	/*
2461	* Updates the canonical_key in op to value.	2437	* Updates the canonical_key in op to value.
2462	*	2438	*
2463	* canonical_key is a shared string (value doesn't have to be).	2439	* canonical_key is a shared string (value doesn't have to be).
…		…
2465	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2441	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2466	* keys.	2442	* keys.
2467	*	2443	*
2468	* Returns TRUE on success.	2444	* Returns TRUE on success.
2469	*/	2445	*/
		2446	int
2470	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2447	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2448	{
2471	key_value * field = NULL, *last=NULL;	2449	key_value *field = NULL, *last = NULL;
2472		2450
2473	for (field=op->key_values; field != NULL; field=field->next) {	2451	for (field = op->key_values; field != NULL; field = field->next)
		2452	{
2474	if (field->key != canonical_key) {	2453	if (field->key != canonical_key)
		2454	{
2475	last = field;	2455	last = field;
2476	continue;	2456	continue;
2477	}	2457	}
2478		2458
2479	if (value)	2459	if (value)
2480	field->value = value;	2460	field->value = value;
2481	else {	2461	else
		2462	{
2482	/* Basically, if the archetype has this key set,	2463	/* Basically, if the archetype has this key set,
2483	* we need to store the null value so when we save	2464	* we need to store the null value so when we save
2484	* it, we save the empty value so that when we load,	2465	* it, we save the empty value so that when we load,
2485	* we get this value back again.	2466	* we get this value back again.
2486	*/	2467	*/
2487	if (get_ob_key_link (&op->arch->clone, canonical_key))	2468	if (get_ob_key_link (op->arch, canonical_key))
2488	field->value = 0;	2469	field->value = 0;
		2470	else
		2471	{
		2472	if (last)
		2473	last->next = field->next;
2489	else	2474	else
2490	{
2491	if (last) last->next = field->next;
2492	else op->key_values = field->next;	2475	op->key_values = field->next;
2493		2476
2494	delete field;	2477	delete field;
2495	}	2478	}
2496	}	2479	}
2497	return TRUE;	2480	return TRUE;
2498	}	2481	}
2499	/* IF we get here, key doesn't exist */	2482	/* IF we get here, key doesn't exist */
2500		2483
2501	/* No field, we'll have to add it. */	2484	/* No field, we'll have to add it. */
2502		2485
2503	if (!add_key) {	2486	if (!add_key)
2504	return FALSE;	2487	return FALSE;
2505	}	2488
2506	/* There isn't any good reason to store a null	2489	/* There isn't any good reason to store a null
2507	* value in the key/value list. If the archetype has	2490	* value in the key/value list. If the archetype has
2508	* this key, then we should also have it, so shouldn't	2491	* this key, then we should also have it, so shouldn't
2509	* be here. If user wants to store empty strings,	2492	* be here. If user wants to store empty strings,
2510	* should pass in ""	2493	* should pass in ""
2511	*/	2494	*/
2512	if (value == NULL) return TRUE;	2495	if (value == NULL)
2513
2514	field = new key_value;
2515
2516	field->key = canonical_key;
2517	field->value = value;
2518	/* Usual prepend-addition. */
2519	field->next = op->key_values;
2520	op->key_values = field;
2521
2522	return TRUE;	2496	return TRUE;
		2497
		2498	field = new key_value;
		2499
		2500	field->key = canonical_key;
		2501	field->value = value;
		2502	/* Usual prepend-addition. */
		2503	field->next = op->key_values;
		2504	op->key_values = field;
		2505
		2506	return TRUE;
2523	}	2507	}
2524		2508
2525	/*	2509	/*
2526	* Updates the key in op to value.	2510	* Updates the key in op to value.
2527	*	2511	*
…		…
2529	* and not add new ones.	2513	* and not add new ones.
2530	* In general, should be little reason FALSE is ever passed in for add_key	2514	* In general, should be little reason FALSE is ever passed in for add_key
2531	*	2515	*
2532	* Returns TRUE on success.	2516	* Returns TRUE on success.
2533	*/	2517	*/
		2518	int
2534	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2519	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2535	{	2520	{
2536	shstr key_ (key);	2521	shstr key_ (key);
		2522
2537	return set_ob_key_value_s (op, key_, value, add_key);	2523	return set_ob_key_value_s (op, key_, value, add_key);
2538	}	2524	}
		2525
		2526	object::depth_iterator::depth_iterator (object *container)
		2527	: iterator_base (container)
		2528	{
		2529	while (item->inv)
		2530	item = item->inv;
		2531	}
		2532
		2533	void
		2534	object::depth_iterator::next ()
		2535	{
		2536	if (item->below)
		2537	{
		2538	item = item->below;
		2539
		2540	while (item->inv)
		2541	item = item->inv;
		2542	}
		2543	else
		2544	item = item->env;
		2545	}
		2546
		2547	const char *
		2548	object::flag_desc (char *desc, int len) const
		2549	{
		2550	char *p = desc;
		2551	bool first = true;
		2552
		2553	*p = 0;
		2554
		2555	for (int i = 0; i < NUM_FLAGS; i++)
		2556	{
		2557	if (len <= 10) // magic constant!
		2558	{
		2559	snprintf (p, len, ",...");
		2560	break;
		2561	}
		2562
		2563	if (flag [i])
		2564	{
		2565	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2566	len -= cnt;
		2567	p += cnt;
		2568	first = false;
		2569	}
		2570	}
		2571
		2572	return desc;
		2573	}
		2574
		2575	// return a suitable string describing an object in enough detail to find it
		2576	const char *
		2577	object::debug_desc (char *info) const
		2578	{
		2579	char flagdesc[512];
		2580	char info2[256 * 4];
		2581	char *p = info;
		2582
		2583	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s,flags:[%s],type:%d}",
		2584	count,
		2585	uuid.c_str (),
		2586	&name,
		2587	title ? "\",title:\"" : "",
		2588	title ? (const char *)title : "",
		2589	flag_desc (flagdesc, 512), type);
		2590
		2591	if (!flag[FLAG_REMOVED] && env)
		2592	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2593
		2594	if (map)
		2595	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2596
		2597	return info;
		2598	}
		2599
		2600	const char *
		2601	object::debug_desc () const
		2602	{
		2603	static char info[3][256 * 4];
		2604	static int info_idx;
		2605
		2606	return debug_desc (info [++info_idx % 3]);
		2607	}
		2608
		2609	struct region *
		2610	object::region () const
		2611	{
		2612	return map ? map->region (x, y)
		2613	: region::default_region ();
		2614	}
		2615
		2616	const materialtype_t *
		2617	object::dominant_material () const
		2618	{
		2619	if (materialtype_t *mt = name_to_material (materialname))
		2620	return mt;
		2621
		2622	return name_to_material (shstr_unknown);
		2623	}
		2624
		2625	void
		2626	object::open_container (object *new_container)
		2627	{
		2628	if (container == new_container)
		2629	return;
		2630
		2631	object *old_container = container;
		2632
		2633	if (old_container)
		2634	{
		2635	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2636	return;
		2637
		2638	#if 0
		2639	// remove the "Close old_container" object.
		2640	if (object *closer = old_container->inv)
		2641	if (closer->type == CLOSE_CON)
		2642	closer->destroy ();
		2643	#endif
		2644
		2645	// make sure the container is available
		2646	esrv_send_item (this, old_container);
		2647
		2648	old_container->flag [FLAG_APPLIED] = false;
		2649	container = 0;
		2650
		2651	// client needs item update to make it work, client bug requires this to be separate
		2652	esrv_update_item (UPD_FLAGS, this, old_container);
		2653
		2654	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2655	play_sound (sound_find ("chest_close"));
		2656	}
		2657
		2658	if (new_container)
		2659	{
		2660	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2661	return;
		2662
		2663	// TODO: this does not seem to serve any purpose anymore?
		2664	#if 0
		2665	// insert the "Close Container" object.
		2666	if (archetype *closer = new_container->other_arch)
		2667	{
		2668	object *closer = arch_to_object (new_container->other_arch);
		2669	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2670	new_container->insert (closer);
		2671	}
		2672	#endif
		2673
		2674	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2675
		2676	// make sure the container is available, client bug requires this to be separate
		2677	esrv_send_item (this, new_container);
		2678
		2679	new_container->flag [FLAG_APPLIED] = true;
		2680	container = new_container;
		2681
		2682	// client needs flag change
		2683	esrv_update_item (UPD_FLAGS, this, new_container);
		2684	esrv_send_inventory (this, new_container);
		2685	play_sound (sound_find ("chest_open"));
		2686	}
		2687	// else if (!old_container->env && contr && contr->ns)
		2688	// contr->ns->floorbox_reset ();
		2689	}
		2690
		2691	object *
		2692	object::force_find (const shstr name)
		2693	{
		2694	/* cycle through his inventory to look for the MARK we want to
		2695	* place
		2696	*/
		2697	for (object *tmp = inv; tmp; tmp = tmp->below)
		2698	if (tmp->type == FORCE && tmp->slaying == name)
		2699	return splay (tmp);
		2700
		2701	return 0;
		2702	}
		2703
		2704	void
		2705	object::force_add (const shstr name, int duration)
		2706	{
		2707	if (object *force = force_find (name))
		2708	force->destroy ();
		2709
		2710	object *force = get_archetype (FORCE_NAME);
		2711
		2712	force->slaying = name;
		2713	force->stats.food = 1;
		2714	force->speed_left = -1.f;
		2715
		2716	force->set_speed (duration ? 1.f / duration : 0.f);
		2717	force->flag [FLAG_IS_USED_UP] = true;
		2718	force->flag [FLAG_APPLIED] = true;
		2719
		2720	insert (force);
		2721	}
		2722
		2723	void
		2724	object::play_sound (faceidx sound)
		2725	{
		2726	if (!sound)
		2727	return;
		2728
		2729	if (flag [FLAG_REMOVED])
		2730	return;
		2731
		2732	if (env)
		2733	{
		2734	if (object *pl = in_player ())
		2735	pl->contr->play_sound (sound);
		2736	}
		2737	else
		2738	map->play_sound (sound, x, y);
		2739	}
		2740

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