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Comparing deliantra/server/common/object.C (file contents):
Revision 1.31 by root, Mon Sep 11 23:33:27 2006 UTC vs.
Revision 1.235 by root, Tue May 6 20:00:12 2008 UTC

1
2	/*	1	/*
3	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
4		3	*
		4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
6	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
7		7	*
8	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
9	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
10	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
11	(at your option) any later version.	11	* (at your option) any later version.
12		12	*
13	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,
14	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	GNU General Public License for more details.	16	* GNU General Public License for more details.
17		17	*
18	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
19	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
20	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
21		21	* The authors can be reached via e-mail to <support@deliantra.net>
22	The authors can be reached via e-mail at crossfire-devel@real-time.com
23	*/	22	*/
24		23
25	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
26	sub/add_weight will transcend the environment updating the carrying
27	variable. */
28	#include <global.h>	24	#include <global.h>
29	#include <stdio.h>	25	#include <stdio.h>
30	#include <sys/types.h>	26	#include <sys/types.h>
31	#include <sys/uio.h>	27	#include <sys/uio.h>
32	#include <object.h>	28	#include <object.h>
33	#include <funcpoint.h>	29	#include <sproto.h>
34	#include <skills.h>
35	#include <loader.h>	30	#include <loader.h>
36		31
37	int nrofallocobjects = 0;	32	#include <bitset>
38		33
39	object *objects; /* Pointer to the list of used objects */	34	UUID UUID::cur;
40	object *active_objects; /* List of active objects that need to be processed */	35	static uint64_t seq_next_save;
		36	static const uint64 UUID_GAP = 1<<19;
41		37
42	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,	38	objectvec objects;
		39	activevec actives;
		40
		41	short freearr_x[SIZEOFFREE] = {
		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,
43	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
44	};	46	};
45	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,	47	short freearr_y[SIZEOFFREE] = {
		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,
46	-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
47	};	52	};
48	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,	53	int maxfree[SIZEOFFREE] = {
		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,
49	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
50	};	58	};
51	int freedir[SIZEOFFREE] = {	59	int freedir[SIZEOFFREE] = {
52	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,
		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,
53	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 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
54	};	64	};
55		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	}
		139
56	/* 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. */
57	static int	141	static bool
58	compare_ob_value_lists_one (const object *wants, const object *has)	142	compare_ob_value_lists_one (const object *wants, const object *has)
59	{	143	{
60	key_value *wants_field;
61
62	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	144	/* n-squared behaviour (see kv_get), but I'm hoping both
63	* objects with lists are rare, and lists stay short. If not, use a	145	* objects with lists are rare, and lists stay short. If not, use a
64	* different structure or at least keep the lists sorted...	146	* different structure or at least keep the lists sorted...
65	*/	147	*/
66		148
67	/* For each field in wants, */	149	/* For each field in wants, */
68	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	150	for (key_value *kv = wants->key_values; kv; kv = kv->next)
69	{	151	if (has->kv_get (kv->key) != kv->value)
70	key_value *has_field;	152	return false;
71
72	/* Look for a field in has with the same key. */
73	has_field = get_ob_key_link (has, wants_field->key);
74
75	if (has_field == NULL)
76	{
77	/* No field with that name. */
78	return FALSE;
79	}
80
81	/* Found the matching field. */
82	if (has_field->value != wants_field->value)
83	{
84	/* Values don't match, so this half of the comparison is false. */
85	return FALSE;
86	}
87
88	/* If we get here, we found a match. Now for the next field in wants. */
89	}
90		153
91	/* If we get here, every field in wants has a matching field in has. */	154	/* If we get here, every field in wants has a matching field in has. */
92	return TRUE;	155	return true;
93	}	156	}
94		157
95	/* Returns TRUE if ob1 has the same key_values as ob2. */	158	/* Returns TRUE if ob1 has the same key_values as ob2. */
96	static int	159	static bool
97	compare_ob_value_lists (const object *ob1, const object *ob2)	160	compare_ob_value_lists (const object *ob1, const object *ob2)
98	{	161	{
99	/* However, there may be fields in has which aren't partnered in wants,	162	/* However, there may be fields in has which aren't partnered in wants,
100	* so we need to run the comparison *twice*. :(	163	* so we need to run the comparison *twice*. :(
101	*/	164	*/
102	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);	165	return compare_ob_value_lists_one (ob1, ob2)
		166	&& compare_ob_value_lists_one (ob2, ob1);
103	}	167	}
104		168
105	/* Function examines the 2 objects given to it, and returns true if	169	/* Function examines the 2 objects given to it, and returns true if
106	* they can be merged together.	170	* they can be merged together.
107	*	171	*
108	* Note that this function appears a lot longer than the macro it	172	* Note that this function appears a lot longer than the macro it
109	* replaces - this is mostly for clarity - a decent compiler should hopefully	173	* replaces - this is mostly for clarity - a decent compiler should hopefully
110	* reduce this to the same efficiency.	174	* reduce this to the same efficiency.
111	*	175	*
112	* Check nrof variable *before* calling CAN_MERGE()	176	* Check nrof variable *before* calling can_merge()
113	*	177	*
114	* Improvements made with merge: Better checking on potion, and also	178	* Improvements made with merge: Better checking on potion, and also
115	* check weight	179	* check weight
116	*/	180	*/
117
118	bool object::can_merge (object *ob1, object *ob2)	181	bool object::can_merge_slow (object *ob1, object *ob2)
119	{	182	{
120	/* A couple quicksanity checks */	183	/* A couple quicksanity checks */
121	if ((ob1 == ob2) || (ob1->type != ob2->type))	184	if (ob1 == ob2
		185	|| ob1->type != ob2->type
		186	|| ob1->speed != ob2->speed
		187	|| ob1->value != ob2->value
		188	|| ob1->name != ob2->name)
122	return 0;	189	return 0;
123		190
124	if (ob1->speed != ob2->speed)	191	/* Do not merge objects if nrof would overflow. First part checks
		192	* for unsigned overflow (2c), second part checks whether the result
		193	* would fit into a 32 bit signed int, which is often used to hold
		194	* nrof values.
		195	*/
		196	if (~ob1->nrof < ob2->nrof || ob1->nrof + ob2->nrof > (1UL << 31))
125	return 0;	197	return 0;
126		198
127	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
128	* value could not be stored in a sint32 (which unfortunately sometimes is
129	* used to store nrof).
130	*/
131	if (ob1->nrof + ob2->nrof >= 1UL << 31)
132	return 0;
133
134	/* If the objects have been identified, set the BEEN_APPLIED flag.	199	/* If the objects have been identified, set the BEEN_APPLIED flag.
135	* This is to the comparison of the flags below will be OK. We	200	* This is to the comparison of the flags below will be OK. We
136	* just can't ignore the been applied or identified flags, as they	201	* just can't ignore the been applied or identified flags, as they
137	* are not equal - just if it has been identified, the been_applied	202	* are not equal - just if it has been identified, the been_applied
138	* flags lose any meaning.	203	* flags lose any meaning.
139	*/	204	*/
140	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	205	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
141	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	206	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
142		207
143	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	208	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
144	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	209	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
145		210
146		211	if (ob1->arch->name != ob2->arch->name
147	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
148	* being locked in inventory should prevent merging.
149	* 0x4 in flags3 is CLIENT_SENT
150	*/
151	if ((ob1->arch != ob2->arch) ||
152	(ob1->flags[0] != ob2->flags[0]) ||
153	(ob1->flags[1] != ob2->flags[1]) ||
154	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
155	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
156	(ob1->name != ob2->name) ||	212	|| ob1->name != ob2->name
157	(ob1->title != ob2->title) ||	213	|| ob1->title != ob2->title
158	(ob1->msg != ob2->msg) ||	214	|| ob1->msg != ob2->msg
159	(ob1->weight != ob2->weight) ||	215	|| ob1->weight != ob2->weight
160	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
161	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
162	(ob1->attacktype != ob2->attacktype) ||	216	|| ob1->attacktype != ob2->attacktype
163	(ob1->magic != ob2->magic) ||	217	|| ob1->magic != ob2->magic
164	(ob1->slaying != ob2->slaying) ||	218	|| ob1->slaying != ob2->slaying
165	(ob1->skill != ob2->skill) ||	219	|| ob1->skill != ob2->skill
166	(ob1->value != ob2->value) ||	220	|| ob1->value != ob2->value
167	(ob1->animation_id != ob2->animation_id) ||	221	|| ob1->animation_id != ob2->animation_id
168	(ob1->client_type != ob2->client_type) ||	222	|| ob1->client_type != ob2->client_type
169	(ob1->materialname != ob2->materialname) ||	223	|| ob1->materialname != ob2->materialname
170	(ob1->lore != ob2->lore) ||	224	|| ob1->lore != ob2->lore
171	(ob1->subtype != ob2->subtype) ||	225	|| ob1->subtype != ob2->subtype
172	(ob1->move_type != ob2->move_type) ||	226	|| ob1->move_type != ob2->move_type
173	(ob1->move_block != ob2->move_block) ||	227	|| ob1->move_block != ob2->move_block
174	(ob1->move_allow != ob2->move_allow) ||	228	|| ob1->move_allow != ob2->move_allow
175	(ob1->move_on != ob2->move_on) ||	229	|| ob1->move_on != ob2->move_on
176	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))	230	|| ob1->move_off != ob2->move_off
		231	|| ob1->move_slow != ob2->move_slow
		232	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		233	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		234	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
177	return 0;	235	return 0;
178		236
		237	if ((ob1->flag ^ ob2->flag)
		238	.reset (FLAG_INV_LOCKED)
		239	.reset (FLAG_CLIENT_SENT)
		240	.reset (FLAG_REMOVED)
		241	.any ())
		242	return 0;
		243
179	/* This is really a spellbook check - really, we should	244	/* This is really a spellbook check - we should in general
180	* check all objects in the inventory.	245	* not merge objects with real inventories, as splitting them
		246	* is hard.
181	*/	247	*/
182	if (ob1->inv || ob2->inv)	248	if (ob1->inv || ob2->inv)
183	{	249	{
184	/* if one object has inventory but the other doesn't, not equiv */
185	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
186	return 0;
187
188	/* Now check to see if the two inventory objects could merge */
189	if (!CAN_MERGE (ob1->inv, ob2->inv))	250	if (!(ob1->inv && ob2->inv))
190	return 0;	251	return 0; /* inventories differ in length */
		252
		253	if (ob1->inv->below || ob2->inv->below)
		254	return 0; /* more than one object in inv */
		255
		256	if (!object::can_merge (ob1->inv, ob2->inv))
		257	return 0; /* inventory objects differ */
191		258
192	/* inventory ok - still need to check rest of this object to see	259	/* inventory ok - still need to check rest of this object to see
193	* if it is valid.	260	* if it is valid.
194	*/	261	*/
195	}	262	}
…		…
203		270
204	/* Note sure why the following is the case - either the object has to	271	/* Note sure why the following is the case - either the object has to
205	* be animated or have a very low speed. Is this an attempted monster	272	* be animated or have a very low speed. Is this an attempted monster
206	* check?	273	* check?
207	*/	274	*/
208	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	275	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
209	return 0;	276	return 0;
210		277
211	switch (ob1->type)	278	switch (ob1->type)
212	{	279	{
213	case SCROLL:	280	case SCROLL:
214	if (ob1->level != ob2->level)	281	if (ob1->level != ob2->level)
215	return 0;	282	return 0;
216	break;	283	break;
217	}	284	}
218		285
219	if (ob1->key_values != NULL || ob2->key_values != NULL)	286	if (ob1->key_values || ob2->key_values)
220	{	287	{
221	/* At least one of these has key_values. */	288	/* At least one of these has key_values. */
222	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	289	if ((!ob1->key_values) != (!ob2->key_values))
223	/* One has fields, but the other one doesn't. */	290	return 0; /* One has fields, but the other one doesn't. */
		291
		292	if (!compare_ob_value_lists (ob1, ob2))
224	return 0;	293	return 0;
225	else if (!compare_ob_value_lists (ob1, ob2))
226	return 0;
227	}	294	}
228		295
229	//TODO: generate an event or call into perl for additional checks
230	if (ob1->self || ob2->self)	296	if (ob1->self || ob2->self)
231	{	297	{
232	ob1->optimise ();	298	ob1->optimise ();
233	ob2->optimise ();	299	ob2->optimise ();
234		300
235	if (ob1->self || ob2->self)	301	if (ob1->self || ob2->self)
		302	{
		303	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		304	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		305
		306	if (k1 != k2)
236	return 0;	307	return 0;
		308
		309	if (k1 == 0)
		310	return 1;
		311
		312	if (!cfperl_can_merge (ob1, ob2))
		313	return 0;
		314	}
237	}	315	}
238		316
239	/* Everything passes, must be OK. */	317	/* Everything passes, must be OK. */
240	return 1;	318	return 1;
241	}	319	}
242		320
		321	// find player who can see this object
		322	object *
		323	object::visible_to () const
		324	{
		325	if (client_visible () && !flag [FLAG_REMOVED])
		326	{
		327	// see if we are in a container of sorts
		328	if (env)
		329	{
		330	// the player inventory itself is always visible
		331	if (env->type == PLAYER)
		332	return env;
		333
		334	// else a player could have our env open
		335	object *envest = env->outer_env ();
		336
		337	// the player itself is always on a map, so we will find him here
		338	// even if our inv is in a player.
		339	if (envest->is_on_map ())
		340	if (object *pl = envest->ms ().player ())
		341	if (pl->container == env)
		342	return pl;
		343	}
		344	else
		345	{
		346	// maybe there is a player standing on the same mapspace
		347	// this will catch the case where "this" is a player
		348	if (object *pl = ms ().player ())
		349	if (!pl->container || this == pl->container)
		350	return pl;
		351	}
		352	}
		353
		354	return 0;
		355	}
		356
		357	// adjust weight per container type ("of holding")
		358	static sint32
		359	weight_adjust_for (object *op, sint32 weight)
		360	{
		361	return op->type == CONTAINER
		362	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		363	: weight;
		364	}
		365
243	/*	366	/*
		367	* adjust_weight(object, weight) adds the specified weight to an object,
		368	* and also updates how much the environment(s) is/are carrying.
		369	*/
		370	static void
		371	adjust_weight (object *op, sint32 weight)
		372	{
		373	while (op)
		374	{
		375	// adjust by actual difference to account for rounding errors
		376	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		377	weight = weight_adjust_for (op, op->carrying)
		378	- weight_adjust_for (op, op->carrying - weight);
		379
		380	if (!weight)
		381	return;
		382
		383	op->carrying += weight;
		384
		385	if (object *pl = op->visible_to ())
		386	if (pl != op) // player is handled lazily
		387	esrv_update_item (UPD_WEIGHT, pl, op);
		388
		389	op = op->env;
		390	}
		391	}
		392
		393	/*
244	* sum_weight() is a recursive function which calculates the weight	394	* this is a recursive function which calculates the weight
245	* an object is carrying. It goes through in figures out how much	395	* an object is carrying. It goes through op and figures out how much
246	* containers are carrying, and sums it up.	396	* containers are carrying, and sums it up.
247	*/	397	*/
248	long	398	void
249	sum_weight (object *op)	399	object::update_weight ()
250	{	400	{
251	long sum;	401	sint32 sum = 0;
252	object *inv;
253		402
254	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	403	for (object *op = inv; op; op = op->below)
255	{	404	{
256	if (inv->inv)	405	if (op->inv)
257	sum_weight (inv);	406	op->update_weight ();
258	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	407
		408	sum += op->total_weight ();
		409	}
		410
		411	sum = weight_adjust_for (this, sum);
		412
		413	if (sum != carrying)
259	}	414	{
260	if (op->type == CONTAINER && op->stats.Str)
261	sum = (sum * (100 - op->stats.Str)) / 100;
262	if (op->carrying != sum)
263	op->carrying = sum;	415	carrying = sum;
264	return sum;
265	}
266		416
267	/**	417	if (object *pl = visible_to ())
268	* Return the outermost environment object for a given object.	418	if (pl != this) // player is handled lazily
269	*/	419	esrv_update_item (UPD_WEIGHT, pl, this);
270
271	object *
272	object_get_env_recursive (object *op)
273	{
274	while (op->env != NULL)
275	op = op->env;
276	return op;
277	}
278
279	/*
280	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
281	* a better check. We basically keeping traversing up until we can't
282	* or find a player.
283	*/
284
285	object *
286	is_player_inv (object *op)
287	{
288	for (; op != NULL && op->type != PLAYER; op = op->env)
289	if (op->env == op)
290	op->env = NULL;
291	return op;
292	}
293
294	/*
295	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
296	* Some error messages.
297	* The result of the dump is stored in the static global errmsg array.
298	*/
299
300	void
301	dump_object2 (object *op)
302	{
303	errmsg[0] = 0;
304	return;
305	//TODO//D#d#
306	#if 0
307	char *cp;
308
309	/* object *tmp;*/
310
311	if (op->arch != NULL)
312	{	420	}
313	strcat (errmsg, "arch ");
314	strcat (errmsg, op->arch->name ? op->arch->name : "(null)");
315	strcat (errmsg, "\n");
316	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
317	strcat (errmsg, cp);
318	# if 0
319	/* Don't dump player diffs - they are too long, mostly meaningless, and
320	* will overflow the buffer.
321	* Changed so that we don't dump inventory either. This may
322	* also overflow the buffer.
323	*/
324	if (op->type != PLAYER && (cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
325	strcat (errmsg, cp);
326	for (tmp = op->inv; tmp; tmp = tmp->below)
327	dump_object2 (tmp);
328	# endif
329	strcat (errmsg, "end\n");
330	}
331	else
332	{
333	strcat (errmsg, "Object ");
334	if (op->name == NULL)
335	strcat (errmsg, "(null)");
336	else
337	strcat (errmsg, op->name);
338	strcat (errmsg, "\n");
339	# if 0
340	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
341	strcat (errmsg, cp);
342	for (tmp = op->inv; tmp; tmp = tmp->below)
343	dump_object2 (tmp);
344	# endif
345	strcat (errmsg, "end\n");
346	}
347	#endif
348	}	421	}
349		422
350	/*	423	/*
351	* Dumps an object. Returns output in the static global errmsg array.	424	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
352	*/	425	*/
353		426	char *
354	void
355	dump_object (object *op)	427	dump_object (object *op)
356	{	428	{
357	if (op == NULL)	429	if (!op)
358	{	430	return strdup ("[NULLOBJ]");
359	strcpy (errmsg, "[NULL pointer]");
360	return;
361	}
362	errmsg[0] = '\0';
363	dump_object2 (op);
364	}
365		431
366	void	432	object_freezer freezer;
367	dump_all_objects (void)	433	op->write (freezer);
368	{	434	return freezer.as_string ();
369	object *op;
370
371	for (op = objects; op != NULL; op = op->next)
372	{
373	dump_object (op);
374	fprintf (logfile, "Object %d\n:%s\n", op->count, errmsg);
375	}
376	}	435	}
377		436
378	/*	437	/*
379	* get_nearest_part(multi-object, object 2) returns the part of the	438	* get_nearest_part(multi-object, object 2) returns the part of the
380	* multi-object 1 which is closest to the second object.	439	* multi-object 1 which is closest to the second object.
381	* If it's not a multi-object, it is returned.	440	* If it's not a multi-object, it is returned.
382	*/	441	*/
383
384	object *	442	object *
385	get_nearest_part (object *op, const object *pl)	443	get_nearest_part (object *op, const object *pl)
386	{	444	{
387	object *tmp, *closest;	445	object *tmp, *closest;
388	int last_dist, i;	446	int last_dist, i;
389		447
390	if (op->more == NULL)	448	if (!op->more)
391	return op;	449	return op;
		450
392	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	451	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		452	tmp;
		453	tmp = tmp->more)
393	if ((i = distance (tmp, pl)) < last_dist)	454	if ((i = distance (tmp, pl)) < last_dist)
394	closest = tmp, last_dist = i;	455	closest = tmp, last_dist = i;
		456
395	return closest;	457	return closest;
396	}	458	}
397		459
398	/*	460	/*
399	* Returns the object which has the count-variable equal to the argument.	461	* Returns the object which has the count-variable equal to the argument.
		462	* VERRRY slow.
400	*/	463	*/
401
402	object *	464	object *
403	find_object (tag_t i)	465	find_object (tag_t i)
404	{	466	{
405	object *op;	467	for_all_objects (op)
406
407	for (op = objects; op != NULL; op = op->next)
408	if (op->count == i)	468	if (op->count == i)
409	break;
410	return op;	469	return op;
		470
		471	return 0;
411	}	472	}
412		473
413	/*	474	/*
414	* Returns the first object which has a name equal to the argument.	475	* Returns the first object which has a name equal to the argument.
415	* Used only by the patch command, but not all that useful.	476	* Used only by the patch command, but not all that useful.
416	* Enables features like "patch <name-of-other-player> food 999"	477	* Enables features like "patch <name-of-other-player> food 999"
417	*/	478	*/
418
419	object *	479	object *
420	find_object_name (const char *str)	480	find_object_name (const char *str)
421	{	481	{
422	const char *name = shstr::find (str);	482	shstr_cmp str_ (str);
423	object *op;	483	object *op;
424		484
425	for (op = objects; op != NULL; op = op->next)	485	for_all_objects (op)
426	if (&op->name == name)	486	if (op->name == str_)
427	break;	487	break;
428		488
429	return op;	489	return op;
430	}
431
432	void
433	free_all_object_data ()
434	{
435	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
436	}
437
438	/*
439	* Returns the object which this object marks as being the owner.
440	* A id-scheme is used to avoid pointing to objects which have been
441	* freed and are now reused. If this is detected, the owner is
442	* set to NULL, and NULL is returned.
443	* Changed 2004-02-12 - if the player is setting at the play again
444	* prompt, he is removed, and we don't want to treat him as an owner of
445	* anything, so check removed flag. I don't expect that this should break
446	* anything - once an object is removed, it is basically dead anyways.
447	*/
448	object *
449	object::get_owner ()
450	{
451	if (!owner
452	|| QUERY_FLAG (owner, FLAG_FREED)
453	|| QUERY_FLAG (owner, FLAG_REMOVED))
454	owner = 0;
455
456	return owner;
457	}	490	}
458		491
459	/*	492	/*
460	* Sets the owner and sets the skill and exp pointers to owner's current	493	* Sets the owner and sets the skill and exp pointers to owner's current
461	* skill and experience objects.	494	* skill and experience objects.
		495	* ACTUALLY NO! investigate! TODO
462	*/	496	*/
463	void	497	void
464	object::set_owner (object *owner)	498	object::set_owner (object *owner)
465	{	499	{
		500	// allow objects which own objects
466	if (!owner)	501	if (owner)
467	return;
468
469	/* next line added to allow objects which own objects */
470	/* Add a check for ownercounts in here, as I got into an endless loop
471	* with the fireball owning a poison cloud which then owned the
472	* fireball. I believe that was caused by one of the objects getting
473	* freed and then another object replacing it. Since the ownercounts
474	* didn't match, this check is valid and I believe that cause is valid.
475	*/
476	while (owner->owner)	502	while (owner->owner)
477	owner = owner->owner;	503	owner = owner->owner;
		504
		505	if (flag [FLAG_FREED])
		506	{
		507	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		508	return;
		509	}
478		510
479	this->owner = owner;	511	this->owner = owner;
		512	}
		513
		514	int
		515	object::slottype () const
		516	{
		517	if (type == SKILL)
		518	{
		519	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		520	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		521	}
		522	else
		523	{
		524	if (slot [body_combat].info) return slot_combat;
		525	if (slot [body_range ].info) return slot_ranged;
		526	}
		527
		528	return slot_none;
		529	}
		530
		531	bool
		532	object::change_weapon (object *ob)
		533	{
		534	if (current_weapon == ob)
		535	return true;
		536
		537	if (chosen_skill)
		538	chosen_skill->flag [FLAG_APPLIED] = false;
		539
		540	current_weapon = ob;
		541	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		542
		543	if (chosen_skill)
		544	chosen_skill->flag [FLAG_APPLIED] = true;
		545
		546	update_stats ();
		547
		548	if (ob)
		549	{
		550	// now check wether any body locations became invalid, in which case
		551	// we cannot apply the weapon at the moment.
		552	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		553	if (slot[i].used < 0)
		554	{
		555	current_weapon = chosen_skill = 0;
		556	update_stats ();
		557
		558	new_draw_info_format (NDI_UNIQUE, 0, this,
		559	"You try to balance all your items at once, "
		560	"but the %s is just too much for your body. "
		561	"[You need to unapply some items first.]", &ob->name);
		562	return false;
		563	}
		564
		565	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		566	}
		567	else
		568	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		569
		570	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		571	{
		572	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		573	&name, ob->debug_desc ());
		574	return false;
		575	}
		576
		577	return true;
480	}	578	}
481		579
482	/* Zero the key_values on op, decrementing the shared-string	580	/* Zero the key_values on op, decrementing the shared-string
483	* refcounts and freeing the links.	581	* refcounts and freeing the links.
484	*/	582	*/
485	static void	583	static void
486	free_key_values (object *op)	584	free_key_values (object *op)
487	{	585	{
488	for (key_value *i = op->key_values; i != 0;)	586	for (key_value *i = op->key_values; i; )
489	{	587	{
490	key_value *next = i->next;	588	key_value *next = i->next;
491	delete i;	589	delete i;
492		590
493	i = next;	591	i = next;
494	}	592	}
495		593
496	op->key_values = 0;	594	op->key_values = 0;
497	}	595	}
498		596
499	void object::clear ()
500	{
501	attachable_base::clear ();
502
503	free_key_values (this);
504
505	owner = 0;
506	name = 0;
507	name_pl = 0;
508	title = 0;
509	race = 0;
510	slaying = 0;
511	skill = 0;
512	msg = 0;
513	lore = 0;
514	custom_name = 0;
515	materialname = 0;
516	contr = 0;
517	below = 0;
518	above = 0;
519	inv = 0;
520	container = 0;
521	env = 0;
522	more = 0;
523	head = 0;
524	map = 0;
525	active_next = 0;
526	active_prev = 0;
527
528	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
529
530	SET_FLAG (this, FLAG_REMOVED);
531
532	/* What is not cleared is next, prev, and count */
533
534	expmul = 1.0;
535	face = blank_face;
536	attacked_by_count = -1;
537
538	if (settings.casting_time)
539	casting_time = -1;
540	}
541
542	void object::clone (object *destination)
543	{
544	*(object_copy *)destination = *this;
545	*(object_pod *)destination = *this;
546
547	if (self || cb)
548	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
549	}
550
551	/*	597	/*
552	* copy object first frees everything allocated by the second object,	598	* copy_to first frees everything allocated by the dst object,
553	* and then copies the contends of the first object into the second	599	* and then copies the contents of itself into the second
554	* object, allocating what needs to be allocated. Basically, any	600	* object, allocating what needs to be allocated. Basically, any
555	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	601	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
556	* if the first object is freed, the pointers in the new object	602	* if the first object is freed, the pointers in the new object
557	* will point at garbage.	603	* will point at garbage.
558	*/	604	*/
559	void	605	void
560	copy_object (object *op2, object *op)	606	object::copy_to (object *dst)
561	{	607	{
562	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	608	dst->remove ();
563	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	609	*(object_copy *)dst = *this;
564		610	dst->flag [FLAG_REMOVED] = true;
565	op2->clone (op);
566
567	if (is_freed)
568	SET_FLAG (op, FLAG_FREED);
569	if (is_removed)
570	SET_FLAG (op, FLAG_REMOVED);
571
572	if (op2->speed < 0)
573	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
574		611
575	/* Copy over key_values, if any. */	612	/* Copy over key_values, if any. */
576	if (op2->key_values)	613	if (key_values)
577	{	614	{
578	key_value *tail = 0;	615	key_value *tail = 0;
579	key_value *i;
580
581	op->key_values = 0;	616	dst->key_values = 0;
582		617
583	for (i = op2->key_values; i; i = i->next)	618	for (key_value *i = key_values; i; i = i->next)
584	{	619	{
585	key_value *new_link = new key_value;	620	key_value *new_link = new key_value;
586		621
587	new_link->next = 0;	622	new_link->next = 0;
588	new_link->key = i->key;	623	new_link->key = i->key;
589	new_link->value = i->value;	624	new_link->value = i->value;
590		625
591	/* Try and be clever here, too. */	626	/* Try and be clever here, too. */
592	if (!op->key_values)	627	if (!dst->key_values)
593	{	628	{
594	op->key_values = new_link;	629	dst->key_values = new_link;
595	tail = new_link;	630	tail = new_link;
596	}	631	}
597	else	632	else
598	{	633	{
599	tail->next = new_link;	634	tail->next = new_link;
600	tail = new_link;	635	tail = new_link;
601	}	636	}
602	}	637	}
603	}	638	}
604		639
605	update_ob_speed (op);	640	if (speed < 0)
		641	dst->speed_left -= rndm ();
		642
		643	dst->set_speed (dst->speed);
		644	}
		645
		646	void
		647	object::instantiate ()
		648	{
		649	if (!uuid.seq) // HACK
		650	uuid = UUID::gen ();
		651
		652	speed_left = -0.1f;
		653	/* copy the body_info to the body_used - this is only really
		654	* need for monsters, but doesn't hurt to do it for everything.
		655	* by doing so, when a monster is created, it has good starting
		656	* values for the body_used info, so when items are created
		657	* for it, they can be properly equipped.
		658	*/
		659	for (int i = NUM_BODY_LOCATIONS; i--; )
		660	slot[i].used = slot[i].info;
		661
		662	attachable::instantiate ();
		663	}
		664
		665	object *
		666	object::clone ()
		667	{
		668	object *neu = create ();
		669	copy_to (neu);
		670	neu->map = map; // not copied by copy_to
		671	return neu;
606	}	672	}
607		673
608	/*	674	/*
609	* If an object with the IS_TURNABLE() flag needs to be turned due	675	* If an object with the IS_TURNABLE() flag needs to be turned due
610	* to the closest player being on the other side, this function can	676	* to the closest player being on the other side, this function can
611	* be called to update the face variable, _and_ how it looks on the map.	677	* be called to update the face variable, _and_ how it looks on the map.
612	*/	678	*/
613
614	void	679	void
615	update_turn_face (object *op)	680	update_turn_face (object *op)
616	{	681	{
617	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	682	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
618	return;	683	return;
		684
619	SET_ANIMATION (op, op->direction);	685	SET_ANIMATION (op, op->direction);
620	update_object (op, UP_OBJ_FACE);	686	update_object (op, UP_OBJ_FACE);
621	}	687	}
622		688
623	/*	689	/*
624	* Updates the speed of an object. If the speed changes from 0 to another	690	* Updates the speed of an object. If the speed changes from 0 to another
625	* value, or vice versa, then add/remove the object from the active list.	691	* value, or vice versa, then add/remove the object from the active list.
626	* This function needs to be called whenever the speed of an object changes.	692	* This function needs to be called whenever the speed of an object changes.
627	*/	693	*/
628	void	694	void
629	update_ob_speed (object *op)	695	object::set_speed (float speed)
630	{	696	{
631	extern int arch_init;	697	if (flag [FLAG_FREED] && speed)
632
633	/* No reason putting the archetypes objects on the speed list,
634	* since they never really need to be updated.
635	*/
636
637	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
638	{	698	{
639	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	699	LOG (llevError, "Object %s is freed but has speed.\n", &name);
640	#ifdef MANY_CORES
641	abort ();
642	#else
643	op->speed = 0;	700	speed = 0;
644	#endif
645	}
646
647	if (arch_init)
648	return;
649
650	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
651	{	701	}
652	/* If already on active list, don't do anything */
653	if (op->active_next || op->active_prev || op == active_objects)
654	return;
655		702
656	/* process_events() expects us to insert the object at the beginning	703	this->speed = speed;
657	* of the list. */
658	op->active_next = active_objects;
659		704
660	if (op->active_next != NULL)	705	if (has_active_speed ())
661	op->active_next->active_prev = op;	706	activate ();
662
663	active_objects = op;
664	}
665	else	707	else
666	{	708	deactivate ();
667	/* If not on the active list, nothing needs to be done */
668	if (!op->active_next && !op->active_prev && op != active_objects)
669	return;
670
671	if (op->active_prev == NULL)
672	{
673	active_objects = op->active_next;
674
675	if (op->active_next != NULL)
676	op->active_next->active_prev = NULL;
677	}
678	else
679	{
680	op->active_prev->active_next = op->active_next;
681
682	if (op->active_next)
683	op->active_next->active_prev = op->active_prev;
684	}
685
686	op->active_next = NULL;
687	op->active_prev = NULL;
688	}
689	}	709	}
690		710
691	/* This function removes object 'op' from the list of active
692	* objects.
693	* This should only be used for style maps or other such
694	* reference maps where you don't want an object that isn't
695	* in play chewing up cpu time getting processed.
696	* The reverse of this is to call update_ob_speed, which
697	* will do the right thing based on the speed of the object.
698	*/
699	void
700	remove_from_active_list (object *op)
701	{
702	/* If not on the active list, nothing needs to be done */
703	if (!op->active_next && !op->active_prev && op != active_objects)
704	return;
705
706	if (op->active_prev == NULL)
707	{
708	active_objects = op->active_next;
709	if (op->active_next != NULL)
710	op->active_next->active_prev = NULL;
711	}
712	else
713	{
714	op->active_prev->active_next = op->active_next;
715	if (op->active_next)
716	op->active_next->active_prev = op->active_prev;
717	}
718	op->active_next = NULL;
719	op->active_prev = NULL;
720	}
721
722	/*	711	/*
723	* update_object() updates the array which represents the map.	712	* update_object() updates the the map.
724	* It takes into account invisible objects (and represent squares covered	713	* It takes into account invisible objects (and represent squares covered
725	* by invisible objects by whatever is below them (unless it's another	714	* by invisible objects by whatever is below them (unless it's another
726	* invisible object, etc...)	715	* invisible object, etc...)
727	* If the object being updated is beneath a player, the look-window	716	* If the object being updated is beneath a player, the look-window
728	* of that player is updated (this might be a suboptimal way of	717	* of that player is updated (this might be a suboptimal way of
729	* updating that window, though, since update_object() is called _often_)	718	* updating that window, though, since update_object() is called _often_)
730	*	719	*
731	* action is a hint of what the caller believes need to be done.	720	* action is a hint of what the caller believes need to be done.
732	* For example, if the only thing that has changed is the face (due to
733	* an animation), we don't need to call update_position until that actually
734	* comes into view of a player. OTOH, many other things, like addition/removal
735	* of walls or living creatures may need us to update the flags now.
736	* current action are:	721	* current action are:
737	* UP_OBJ_INSERT: op was inserted	722	* UP_OBJ_INSERT: op was inserted
738	* UP_OBJ_REMOVE: op was removed	723	* UP_OBJ_REMOVE: op was removed
739	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	724	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
740	* as that is easier than trying to look at what may have changed.	725	* as that is easier than trying to look at what may have changed.
741	* UP_OBJ_FACE: only the objects face has changed.	726	* UP_OBJ_FACE: only the objects face has changed.
742	*/	727	*/
743
744	void	728	void
745	update_object (object *op, int action)	729	update_object (object *op, int action)
746	{	730	{
747	int update_now = 0, flags;	731	if (!op)
748	MoveType move_on, move_off, move_block, move_slow;
749
750	if (op == NULL)
751	{	732	{
752	/* this should never happen */	733	/* this should never happen */
753	LOG (llevDebug, "update_object() called for NULL object.\n");	734	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
754	return;	735	return;
755	}	736	}
756		737
757	if (op->env != NULL)	738	if (!op->is_on_map ())
758	{	739	{
759	/* Animation is currently handled by client, so nothing	740	/* Animation is currently handled by client, so nothing
760	* to do in this case.	741	* to do in this case.
761	*/	742	*/
762	return;	743	return;
763	}	744	}
764		745
765	/* If the map is saving, don't do anything as everything is
766	* going to get freed anyways.
767	*/
768	if (!op->map || op->map->in_memory == MAP_SAVING)
769	return;
770
771	/* make sure the object is within map boundaries */	746	/* make sure the object is within map boundaries */
772	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	747	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
773	{	748	{
774	LOG (llevError, "update_object() called for object out of map!\n");	749	LOG (llevError, "update_object() called for object out of map!\n");
775	#ifdef MANY_CORES	750	#ifdef MANY_CORES
776	abort ();	751	abort ();
777	#endif	752	#endif
778	return;	753	return;
779	}	754	}
780		755
781	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	756	mapspace &m = op->ms ();
782	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
783	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
784	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
785	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
786	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
787		757
		758	if (!(m.flags_ & P_UPTODATE))
		759	/* nop */;
788	if (action == UP_OBJ_INSERT)	760	else if (action == UP_OBJ_INSERT)
789	{	761	{
		762	// this is likely overkill, TODO: revisit (schmorp)
790	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	763	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
791	update_now = 1;
792
793	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	764	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
794	update_now = 1;	765	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
795		766	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		767	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
796	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	768	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
797	update_now = 1;
798
799	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
800	update_now = 1;
801
802	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
803	update_now = 1;
804
805	if ((move_on | op->move_on) != move_on)	769	|| (m.move_on | op->move_on ) != m.move_on
806	update_now = 1;
807
808	if ((move_off | op->move_off) != move_off)	770	|| (m.move_off | op->move_off ) != m.move_off
809	update_now = 1;	771	|| (m.move_slow | op->move_slow) != m.move_slow
810
811	/* This isn't perfect, but I don't expect a lot of objects to	772	/* This isn't perfect, but I don't expect a lot of objects to
812	* to have move_allow right now.	773	* to have move_allow right now.
813	*/	774	*/
814	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	775	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
815	update_now = 1;	776	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
816		777	m.flags_ = 0;
817	if ((move_slow | op->move_slow) != move_slow)
818	update_now = 1;
819	}	778	}
820	/* if the object is being removed, we can't make intelligent	779	/* if the object is being removed, we can't make intelligent
821	* decisions, because remove_ob can't really pass the object	780	* decisions, because remove_ob can't really pass the object
822	* that is being removed.	781	* that is being removed.
823	*/	782	*/
824	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	783	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
825	update_now = 1;	784	m.flags_ = 0;
826	else if (action == UP_OBJ_FACE)	785	else if (action == UP_OBJ_FACE)
827	/* Nothing to do for that case */ ;	786	/* Nothing to do for that case */ ;
828	else	787	else
829	LOG (llevError, "update_object called with invalid action: %d\n", action);	788	LOG (llevError, "update_object called with invalid action: %d\n", action);
830		789
831	if (update_now)
832	{
833	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
834	update_position (op->map, op->x, op->y);
835	}
836
837	if (op->more != NULL)	790	if (op->more)
838	update_object (op->more, action);	791	update_object (op->more, action);
839	}
840
841	static unordered_vector<object *> mortals;
842	static std::vector<object *> freed;
843
844	void object::free_mortals ()
845	{
846	for (unordered_vector<object *>::iterator i = mortals.begin (); i != mortals.end ();)
847	if ((*i)->refcnt)
848	++i; // further delay freeing
849	else
850	{
851	freed.push_back (*i);//D
852	//delete *i;
853	mortals.erase (i);
854	}
855
856	if (mortals.size())//D
857	LOG (llevDebug, "%d objects in mortal queue\n", mortals.size());//D
858	}	792	}
859		793
860	object::object ()	794	object::object ()
861	{	795	{
862	SET_FLAG (this, FLAG_REMOVED);	796	SET_FLAG (this, FLAG_REMOVED);
863		797
864	expmul = 1.0;	798	expmul = 1.0;
865	face = blank_face;	799	face = blank_face;
866	attacked_by_count = -1;
867	}	800	}
868		801
869	object::~object ()	802	object::~object ()
870	{	803	{
		804	unlink ();
		805
871	free_key_values (this);	806	free_key_values (this);
872	}	807	}
873		808
		809	static int object_count;
		810
874	void object::link ()	811	void object::link ()
875	{	812	{
		813	assert (!index);//D
		814	uuid = UUID::gen ();
876	count = ++ob_count;	815	count = ++object_count;
877		816
878	prev = 0;	817	refcnt_inc ();
879	next = objects;	818	objects.insert (this);
880
881	if (objects)
882	objects->prev = this;
883
884	objects = this;
885	}	819	}
886		820
887	void object::unlink ()	821	void object::unlink ()
888	{	822	{
889	count = 0;
890
891	/* Remove this object from the list of used objects */
892	if (prev)
893	{
894	prev->next = next;
895	prev = 0;
896	}
897
898	if (next)	823	if (!index)
899	{	824	return;
900	next->prev = prev;	825
901	next = 0;	826	objects.erase (this);
		827	refcnt_dec ();
		828	}
		829
		830	void
		831	object::activate ()
		832	{
		833	/* If already on active list, don't do anything */
		834	if (active)
		835	return;
		836
		837	if (has_active_speed ())
		838	actives.insert (this);
		839	}
		840
		841	void
		842	object::activate_recursive ()
		843	{
		844	activate ();
		845
		846	for (object *op = inv; op; op = op->below)
		847	op->activate_recursive ();
		848	}
		849
		850	/* This function removes object 'op' from the list of active
		851	* objects.
		852	* This should only be used for style maps or other such
		853	* reference maps where you don't want an object that isn't
		854	* in play chewing up cpu time getting processed.
		855	* The reverse of this is to call update_ob_speed, which
		856	* will do the right thing based on the speed of the object.
		857	*/
		858	void
		859	object::deactivate ()
		860	{
		861	/* If not on the active list, nothing needs to be done */
		862	if (!active)
		863	return;
		864
		865	actives.erase (this);
		866	}
		867
		868	void
		869	object::deactivate_recursive ()
		870	{
		871	for (object *op = inv; op; op = op->below)
		872	op->deactivate_recursive ();
		873
		874	deactivate ();
		875	}
		876
		877	void
		878	object::set_flag_inv (int flag, int value)
		879	{
		880	for (object *op = inv; op; op = op->below)
902	}	881	{
		882	op->flag [flag] = value;
		883	op->set_flag_inv (flag, value);
		884	}
		885	}
903		886
904	if (this == objects)	887	/*
905	objects = next;	888	* Remove and free all objects in the inventory of the given object.
		889	* object.c ?
		890	*/
		891	void
		892	object::destroy_inv (bool drop_to_ground)
		893	{
		894	// need to check first, because the checks below might segfault
		895	// as we might be on an invalid mapspace and crossfire code
		896	// is too buggy to ensure that the inventory is empty.
		897	// corollary: if you create arrows etc. with stuff in its inventory,
		898	// cf will crash below with off-map x and y
		899	if (!inv)
		900	return;
		901
		902	/* Only if the space blocks everything do we not process -
		903	* if some form of movement is allowed, let objects
		904	* drop on that space.
		905	*/
		906	if (!drop_to_ground
		907	|| !map
		908	|| map->in_memory != MAP_ACTIVE
		909	|| map->nodrop
		910	|| ms ().move_block == MOVE_ALL)
		911	{
		912	while (inv)
		913	{
		914	inv->destroy_inv (false);
		915	inv->destroy ();
		916	}
		917	}
		918	else
		919	{ /* Put objects in inventory onto this space */
		920	while (inv)
		921	{
		922	object *op = inv;
		923
		924	if (op->flag [FLAG_STARTEQUIP]
		925	|| op->flag [FLAG_NO_DROP]
		926	|| op->type == RUNE
		927	|| op->type == TRAP
		928	|| op->flag [FLAG_IS_A_TEMPLATE]
		929	|| op->flag [FLAG_DESTROY_ON_DEATH])
		930	op->destroy (true);
		931	else
		932	map->insert (op, x, y);
		933	}
		934	}
906	}	935	}
907		936
908	object *object::create ()	937	object *object::create ()
909	{	938	{
910	object *
911	op;
912
913	if (freed.empty ())
914	op = new object;	939	object *op = new object;
915	else
916	{
917	// highly annoying, but the only way to get it stable right now
918	op = freed.back ();
919	freed.pop_back ();
920	op->~object ();
921	new ((void *) op) object;
922	}
923
924	op->link ();	940	op->link ();
925	return op;	941	return op;
926	}	942	}
927		943
928	/*	944	static struct freed_map : maptile
929	* free_object() frees everything allocated by an object, removes
930	* it from the list of used objects, and puts it on the list of
931	* free objects. The IS_FREED() flag is set in the object.
932	* The object must have been removed by remove_ob() first for
933	* this function to succeed.
934	*
935	* If free_inventory is set, free inventory as well. Else drop items in
936	* inventory to the ground.
937	*/
938	void object::free (bool free_inventory)
939	{	945	{
940	if (QUERY_FLAG (this, FLAG_FREED))	946	freed_map ()
		947	{
		948	path = "<freed objects map>";
		949	name = "/internal/freed_objects_map";
		950	width = 3;
		951	height = 3;
		952	nodrop = 1;
		953
		954	alloc ();
		955	in_memory = MAP_ACTIVE;
		956	}
		957
		958	~freed_map ()
		959	{
		960	destroy ();
		961	}
		962	} freed_map; // freed objects are moved here to avoid crashes
		963
		964	void
		965	object::do_destroy ()
		966	{
		967	if (flag [FLAG_IS_LINKED])
		968	remove_button_link (this);
		969
		970	if (flag [FLAG_FRIENDLY])
		971	remove_friendly_object (this);
		972
		973	remove ();
		974
		975	attachable::do_destroy ();
		976
		977	deactivate ();
		978	unlink ();
		979
		980	flag [FLAG_FREED] = 1;
		981
		982	// hack to ensure that freed objects still have a valid map
		983	map = &freed_map;
		984	x = 1;
		985	y = 1;
		986
		987	if (more)
		988	{
		989	more->destroy ();
		990	more = 0;
		991	}
		992
		993	head = 0;
		994
		995	// clear those pointers that likely might cause circular references
		996	owner = 0;
		997	enemy = 0;
		998	attacked_by = 0;
		999	current_weapon = 0;
		1000	}
		1001
		1002	void
		1003	object::destroy (bool destroy_inventory)
		1004	{
		1005	if (destroyed ())
941	return;	1006	return;
942		1007
943	if (!QUERY_FLAG (this, FLAG_REMOVED))	1008	if (!is_head () && !head->destroyed ())
944	remove_ob (this);
945
946	if (QUERY_FLAG (this, FLAG_FRIENDLY))
947	remove_friendly_object (this);
948
949	SET_FLAG (this, FLAG_FREED);
950
951	if (more)
952	{
953	more->free (free_inventory);
954	more = 0;
955	}	1009	{
956		1010	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
957	if (inv)	1011	head->destroy (destroy_inventory);
		1012	return;
958	{	1013	}
959	/* Only if the space blocks everything do we not process -
960	* if some form of movement is allowed, let objects
961	* drop on that space.
962	*/
963	if (free_inventory || !map || map->in_memory != MAP_IN_MEMORY || (GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL))
964	{
965	object *op = inv;
966		1014
967	while (op)	1015	destroy_inv (!destroy_inventory);
968	{
969	object *tmp = op->below;
970	op->free (free_inventory);
971	op = tmp;
972	}
973	}
974	else
975	{ /* Put objects in inventory onto this space */
976	object *op = inv;
977		1016
978	while (op)	1017	if (is_head ())
979	{	1018	if (sound_destroy)
980	object *tmp = op->below;	1019	play_sound (sound_destroy);
		1020	else if (flag [FLAG_MONSTER])
		1021	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
981		1022
982	remove_ob (op);	1023	attachable::destroy ();
983
984	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
985	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
986	free_object (op);
987	else
988	{
989	op->x = x;
990	op->y = y;
991	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
992	}
993
994	op = tmp;
995	}
996	}
997	}
998
999	owner = 0;
1000
1001	/* Remove object from the active list */
1002	speed = 0;
1003	update_ob_speed (this);
1004
1005	unlink ();
1006
1007	mortals.push_back (this);
1008	}	1024	}
1009		1025
1010	/*	1026	/* op->remove ():
1011	* sub_weight() recursively (outwards) subtracts a number from the
1012	* weight of an object (and what is carried by it's environment(s)).
1013	*/
1014
1015	void
1016	sub_weight (object *op, signed long weight)
1017	{
1018	while (op != NULL)
1019	{
1020	if (op->type == CONTAINER)
1021	{
1022	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1023	}
1024	op->carrying -= weight;
1025	op = op->env;
1026	}
1027	}
1028
1029	/* remove_ob(op):
1030	* This function removes the object op from the linked list of objects	1027	* This function removes the object op from the linked list of objects
1031	* which it is currently tied to. When this function is done, the	1028	* which it is currently tied to. When this function is done, the
1032	* object will have no environment. If the object previously had an	1029	* object will have no environment. If the object previously had an
1033	* environment, the x and y coordinates will be updated to	1030	* environment, the x and y coordinates will be updated to
1034	* the previous environment.	1031	* the previous environment.
1035	* Beware: This function is called from the editor as well!
1036	*/	1032	*/
1037
1038	void	1033	void
1039	remove_ob (object *op)	1034	object::do_remove ()
1040	{	1035	{
		1036	object *tmp, *last = 0;
1041	object *	1037	object *otmp;
1042	tmp, *
1043	last = NULL;
1044	object *
1045	otmp;
1046		1038
1047	tag_t	1039	if (flag [FLAG_REMOVED])
1048	tag;
1049	int
1050	check_walk_off;
1051	mapstruct *
1052	m;
1053
1054	sint16
1055	x,
1056	y;
1057
1058	if (QUERY_FLAG (op, FLAG_REMOVED))
1059	return;	1040	return;
1060		1041
1061	SET_FLAG (op, FLAG_REMOVED);	1042	INVOKE_OBJECT (REMOVE, this);
1062		1043
1063	if (op->more != NULL)	1044	flag [FLAG_REMOVED] = true;
1064	remove_ob (op->more);	1045
		1046	if (more)
		1047	more->remove ();
1065		1048
1066	/*	1049	/*
1067	* In this case, the object to be removed is in someones	1050	* In this case, the object to be removed is in someones
1068	* inventory.	1051	* inventory.
1069	*/	1052	*/
1070	if (op->env != NULL)	1053	if (env)
1071	{	1054	{
1072	if (op->nrof)	1055	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1073	sub_weight (op->env, op->weight * op->nrof);	1056	if (object *pl = visible_to ())
1074	else	1057	esrv_del_item (pl->contr, count);
1075	sub_weight (op->env, op->weight + op->carrying);	1058	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1059
		1060	adjust_weight (env, -total_weight ());
		1061
		1062	*(above ? &above->below : &env->inv) = below;
		1063
		1064	if (below)
		1065	below->above = above;
		1066
		1067	/* we set up values so that it could be inserted into
		1068	* the map, but we don't actually do that - it is up
		1069	* to the caller to decide what we want to do.
		1070	*/
		1071	map = env->map;
		1072	x = env->x;
		1073	y = env->y;
		1074	above = 0;
		1075	below = 0;
		1076	env = 0;
1076		1077
1077	/* NO_FIX_PLAYER is set when a great many changes are being	1078	/* NO_FIX_PLAYER is set when a great many changes are being
1078	* made to players inventory. If set, avoiding the call	1079	* made to players inventory. If set, avoiding the call
1079	* to save cpu time.	1080	* to save cpu time.
1080	*/	1081	*/
1081	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1082	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1082	fix_player (otmp);	1083	otmp->update_stats ();
		1084	}
		1085	else if (map)
		1086	{
		1087	map->dirty = true;
		1088	mapspace &ms = this->ms ();
1083		1089
1084	if (op->above != NULL)	1090	if (object *pl = ms.player ())
		1091	{
		1092	if (type == PLAYER) // this == pl(!)
		1093	{
		1094	// leaving a spot always closes any open container on the ground
		1095	if (container && !container->env)
		1096	// this causes spurious floorbox updates, but it ensures
		1097	// that the CLOSE event is being sent.
		1098	close_container ();
		1099
		1100	--map->players;
		1101	map->touch ();
		1102	}
		1103	else if (pl->container == this)
		1104	{
		1105	// removing a container should close it
		1106	close_container ();
		1107	}
		1108
		1109	esrv_del_item (pl->contr, count);
		1110	}
		1111
		1112	/* link the object above us */
		1113	if (above)
1085	op->above->below = op->below;	1114	above->below = below;
1086	else	1115	else
1087	op->env->inv = op->below;	1116	ms.top = below; /* we were top, set new top */
1088		1117
1089	if (op->below != NULL)	1118	/* Relink the object below us, if there is one */
		1119	if (below)
1090	op->below->above = op->above;	1120	below->above = above;
		1121	else
		1122	ms.bot = above;
1091		1123
1092	/* we set up values so that it could be inserted into	1124	above = 0;
1093	* the map, but we don't actually do that - it is up	1125	below = 0;
1094	* to the caller to decide what we want to do.
1095	*/
1096	op->x = op->env->x, op->y = op->env->y;
1097	op->map = op->env->map;
1098	op->above = NULL, op->below = NULL;
1099	op->env = NULL;
1100	}
1101	else if (op->map)
1102	{
1103	x = op->x;
1104	y = op->y;
1105	m = get_map_from_coord (op->map, &x, &y);
1106		1126
1107	if (!m)	1127	if (map->in_memory == MAP_SAVING)
		1128	return;
		1129
		1130	int check_walk_off = !flag [FLAG_NO_APPLY];
		1131
		1132	if (object *pl = ms.player ())
1108	{	1133	{
1109	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1134	if (pl->container == this)
1110	op->map->path, op->x, op->y);	1135	/* If a container that the player is currently using somehow gets
1111	/* in old days, we used to set x and y to 0 and continue.	1136	* removed (most likely destroyed), update the player view
1112	* it seems if we get into this case, something is probablye	1137	* appropriately.
1113	* screwed up and should be fixed.
1114	*/	1138	*/
1115	abort ();	1139	pl->close_container ();
		1140
		1141	//TODO: the floorbox prev/next might need updating
		1142	//esrv_del_item (pl->contr, count);
		1143	//TODO: update floorbox to preserve ordering
		1144	if (pl->contr->ns)
		1145	pl->contr->ns->floorbox_update ();
1116	}	1146	}
1117		1147
1118	if (op->map != m)	1148	for (tmp = ms.bot; tmp; tmp = tmp->above)
1119	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1120	op->map->path, m->path, op->x, op->y, x, y);
1121
1122	/* Re did the following section of code - it looks like it had
1123	* lots of logic for things we no longer care about
1124	*/
1125
1126	/* link the object above us */
1127	if (op->above)
1128	op->above->below = op->below;
1129	else
1130	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1131
1132	/* Relink the object below us, if there is one */
1133	if (op->below)
1134	op->below->above = op->above;
1135	else
1136	{
1137	/* Nothing below, which means we need to relink map object for this space
1138	* use translated coordinates in case some oddness with map tiling is
1139	* evident
1140	*/
1141	if (GET_MAP_OB (m, x, y) != op)
1142	{
1143	dump_object (op);
1144	LOG (llevError,
1145	"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);
1146	dump_object (GET_MAP_OB (m, x, y));
1147	LOG (llevError, "%s\n", errmsg);
1148	}
1149
1150	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */
1151	}
1152
1153	op->above = 0;
1154	op->below = 0;
1155
1156	if (op->map->in_memory == MAP_SAVING)
1157	return;
1158
1159	tag = op->count;
1160	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1161
1162	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1163	{	1149	{
1164	/* No point updating the players look faces if he is the object	1150	/* No point updating the players look faces if he is the object
1165	* being removed.	1151	* being removed.
1166	*/	1152	*/
1167		1153
1168	if (tmp->type == PLAYER && tmp != op)	1154	/* See if object moving off should effect something */
		1155	if (check_walk_off
		1156	&& ((move_type & tmp->move_off)
		1157	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1169	{	1158	{
1170	/* If a container that the player is currently using somehow gets	1159	move_apply (tmp, this, 0);
1171	* removed (most likely destroyed), update the player view
1172	* appropriately.
1173	*/
1174	if (tmp->container == op)
1175	{
1176	CLEAR_FLAG (op, FLAG_APPLIED);
1177	tmp->container = NULL;
1178	}
1179		1160
1180	tmp->contr->socket.update_look = 1;	1161	if (destroyed ())
		1162	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1181	}	1163	}
1182
1183	/* See if player moving off should effect something */
1184	if (check_walk_off && ((op->move_type & tmp->move_off) && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1185	{
1186	move_apply (tmp, op, NULL);
1187
1188	if (was_destroyed (op, tag))
1189	{
1190	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name);
1191	}
1192	}
1193
1194	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1195
1196	if (tmp->above == tmp)
1197	tmp->above = NULL;
1198		1164
1199	last = tmp;	1165	last = tmp;
1200	}	1166	}
1201		1167
1202	/* last == NULL of there are no objects on this space */	1168	/* last == NULL if there are no objects on this space */
		1169	//TODO: this makes little sense, why only update the topmost object?
1203	if (last == NULL)	1170	if (!last)
1204	{	1171	map->at (x, y).flags_ = 0;
1205	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1206	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1207	* those out anyways, and if there are any flags set right now, they won't
1208	* be correct anyways.
1209	*/
1210	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1211	update_position (op->map, op->x, op->y);
1212	}
1213	else	1172	else
1214	update_object (last, UP_OBJ_REMOVE);	1173	update_object (last, UP_OBJ_REMOVE);
1215		1174
1216	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))	1175	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1217	update_all_los (op->map, op->x, op->y);	1176	update_all_los (map, x, y);
1218	}	1177	}
1219	}	1178	}
1220		1179
1221	/*	1180	/*
1222	* merge_ob(op,top):	1181	* merge_ob(op,top):
…		…
1224	* This function goes through all objects below and including top, and	1183	* This function goes through all objects below and including top, and
1225	* merges op to the first matching object.	1184	* merges op to the first matching object.
1226	* If top is NULL, it is calculated.	1185	* If top is NULL, it is calculated.
1227	* Returns pointer to object if it succeded in the merge, otherwise NULL	1186	* Returns pointer to object if it succeded in the merge, otherwise NULL
1228	*/	1187	*/
1229
1230	object *	1188	object *
1231	merge_ob (object *op, object *top)	1189	merge_ob (object *op, object *top)
1232	{	1190	{
1233	if (!op->nrof)	1191	if (!op->nrof)
1234	return 0;	1192	return 0;
1235		1193
1236	if (top == NULL)	1194	if (!top)
1237	for (top = op; top != NULL && top->above != NULL; top = top->above);	1195	for (top = op; top && top->above; top = top->above)
		1196	;
1238		1197
1239	for (; top != NULL; top = top->below)	1198	for (; top; top = top->below)
1240	{	1199	if (object::can_merge (op, top))
1241	if (top == op)
1242	continue;
1243	if (CAN_MERGE (op, top))
1244	{	1200	{
1245	top->nrof += op->nrof;	1201	top->nrof += op->nrof;
1246		1202
1247	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1203	if (object *pl = top->visible_to ())
1248	op->weight = 0; /* Don't want any adjustements now */	1204	esrv_update_item (UPD_NROF, pl, top);
1249	remove_ob (op);	1205
1250	free_object (op);	1206	op->weight = 0; // cancel the addition above
		1207	op->carrying = 0; // must be 0 already
		1208
		1209	op->destroy (1);
		1210
1251	return top;	1211	return top;
1252	}	1212	}
1253	}
1254		1213
1255	return NULL;	1214	return 0;
1256	}	1215	}
1257		1216
		1217	void
		1218	object::expand_tail ()
		1219	{
		1220	if (more)
		1221	return;
		1222
		1223	object *prev = this;
		1224
		1225	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1226	{
		1227	object *op = arch_to_object (at);
		1228
		1229	op->name = name;
		1230	op->name_pl = name_pl;
		1231	op->title = title;
		1232
		1233	op->head = this;
		1234	prev->more = op;
		1235
		1236	prev = op;
		1237	}
		1238	}
		1239
1258	/*	1240	/*
1259	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1241	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1260	* job preparing multi-part monsters	1242	* job preparing multi-part monsters.
1261	*/	1243	*/
1262	object *	1244	object *
1263	insert_ob_in_map_at (object *op, mapstruct *m, object *originator, int flag, int x, int y)	1245	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1264	{	1246	{
1265	object *tmp;
1266
1267	if (op->head)
1268	op = op->head;
1269
1270	for (tmp = op; tmp; tmp = tmp->more)	1247	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1271	{	1248	{
1272	tmp->x = x + tmp->arch->clone.x;	1249	tmp->x = x + tmp->arch->x;
1273	tmp->y = y + tmp->arch->clone.y;	1250	tmp->y = y + tmp->arch->y;
1274	}	1251	}
1275		1252
1276	return insert_ob_in_map (op, m, originator, flag);	1253	return insert_ob_in_map (op, m, originator, flag);
1277	}	1254	}
1278		1255
…		…
1294	* Return value:	1271	* Return value:
1295	* new object if 'op' was merged with other object	1272	* new object if 'op' was merged with other object
1296	* NULL if 'op' was destroyed	1273	* NULL if 'op' was destroyed
1297	* just 'op' otherwise	1274	* just 'op' otherwise
1298	*/	1275	*/
1299
1300	object *	1276	object *
1301	insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1277	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1302	{	1278	{
1303	object *tmp, *top, *floor = NULL;	1279	assert (!op->flag [FLAG_FREED]);
1304	sint16 x, y;
1305		1280
1306	if (QUERY_FLAG (op, FLAG_FREED))	1281	op->remove ();
1307	{
1308	LOG (llevError, "Trying to insert freed object!\n");
1309	return NULL;
1310	}
1311
1312	if (m == NULL)
1313	{
1314	dump_object (op);
1315	LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg);
1316	return op;
1317	}
1318
1319	if (out_of_map (m, op->x, op->y))
1320	{
1321	dump_object (op);
1322	LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg);
1323	#ifdef MANY_CORES
1324	/* Better to catch this here, as otherwise the next use of this object
1325	* is likely to cause a crash. Better to find out where it is getting
1326	* improperly inserted.
1327	*/
1328	abort ();
1329	#endif
1330	return op;
1331	}
1332
1333	if (!QUERY_FLAG (op, FLAG_REMOVED))
1334	{
1335	dump_object (op);
1336	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg);
1337	return op;
1338	}
1339
1340	if (op->more != NULL)
1341	{
1342	/* The part may be on a different map. */
1343
1344	object *more = op->more;
1345
1346	/* We really need the caller to normalize coordinates - if
1347	* we set the map, that doesn't work if the location is within
1348	* a map and this is straddling an edge. So only if coordinate
1349	* is clear wrong do we normalize it.
1350	*/
1351	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1352	more->map = get_map_from_coord (m, &more->x, &more->y);
1353	else if (!more->map)
1354	{
1355	/* For backwards compatibility - when not dealing with tiled maps,
1356	* more->map should always point to the parent.
1357	*/
1358	more->map = m;
1359	}
1360
1361	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1362	{
1363	if (!op->head)
1364	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1365
1366	return NULL;
1367	}
1368	}
1369
1370	CLEAR_FLAG (op, FLAG_REMOVED);
1371		1282
1372	/* Ideally, the caller figures this out. However, it complicates a lot	1283	/* Ideally, the caller figures this out. However, it complicates a lot
1373	* of areas of callers (eg, anything that uses find_free_spot would now	1284	* of areas of callers (eg, anything that uses find_free_spot would now
1374	* need extra work	1285	* need extra work
1375	*/	1286	*/
1376	op->map = get_map_from_coord (m, &op->x, &op->y);	1287	if (!xy_normalise (m, op->x, op->y))
1377	x = op->x;	1288	{
1378	y = op->y;	1289	op->head_ ()->destroy (1);// remove head_ once all tail object destroyers found
		1290	return 0;
		1291	}
		1292
		1293	if (object *more = op->more)
		1294	if (!insert_ob_in_map (more, m, originator, flag))
		1295	return 0;
		1296
		1297	CLEAR_FLAG (op, FLAG_REMOVED);
		1298
		1299	op->map = m;
		1300	mapspace &ms = op->ms ();
1379		1301
1380	/* this has to be done after we translate the coordinates.	1302	/* this has to be done after we translate the coordinates.
1381	*/	1303	*/
1382	if (op->nrof && !(flag & INS_NO_MERGE))	1304	if (op->nrof && !(flag & INS_NO_MERGE))
1383	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1305	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1384	if (CAN_MERGE (op, tmp))	1306	if (object::can_merge (op, tmp))
1385	{	1307	{
		1308	// TODO: we atcually want to update tmp, not op,
		1309	// but some caller surely breaks when we return tmp
		1310	// from here :/
1386	op->nrof += tmp->nrof;	1311	op->nrof += tmp->nrof;
1387	remove_ob (tmp);	1312	tmp->destroy (1);
1388	free_object (tmp);
1389	}	1313	}
1390		1314
1391	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1315	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1392	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1316	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1393		1317
…		…
1406	op->below = originator->below;	1330	op->below = originator->below;
1407		1331
1408	if (op->below)	1332	if (op->below)
1409	op->below->above = op;	1333	op->below->above = op;
1410	else	1334	else
1411	SET_MAP_OB (op->map, op->x, op->y, op);	1335	ms.bot = op;
1412		1336
1413	/* since *below* originator, no need to update top */	1337	/* since *below* originator, no need to update top */
1414	originator->below = op;	1338	originator->below = op;
1415	}	1339	}
1416	else	1340	else
1417	{	1341	{
		1342	object *top, *floor = NULL;
		1343
		1344	top = ms.bot;
		1345
1418	/* If there are other objects, then */	1346	/* If there are other objects, then */
1419	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1347	if (top)
1420	{	1348	{
1421	object *last = NULL;	1349	object *last = 0;
1422		1350
1423	/*	1351	/*
1424	* If there are multiple objects on this space, we do some trickier handling.	1352	* If there are multiple objects on this space, we do some trickier handling.
1425	* We've already dealt with merging if appropriate.	1353	* We've already dealt with merging if appropriate.
1426	* Generally, we want to put the new object on top. But if	1354	* Generally, we want to put the new object on top. But if
…		…
1430	* once we get to them. This reduces the need to traverse over all of	1358	* once we get to them. This reduces the need to traverse over all of
1431	* them when adding another one - this saves quite a bit of cpu time	1359	* them when adding another one - this saves quite a bit of cpu time
1432	* when lots of spells are cast in one area. Currently, it is presumed	1360	* when lots of spells are cast in one area. Currently, it is presumed
1433	* that flying non pickable objects are spell objects.	1361	* that flying non pickable objects are spell objects.
1434	*/	1362	*/
1435		1363	for (top = ms.bot; top; top = top->above)
1436	while (top != NULL)
1437	{	1364	{
1438	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1365	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1439	floor = top;	1366	floor = top;
1440		1367
1441	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1368	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
…		…
1444	top = top->below;	1371	top = top->below;
1445	break;	1372	break;
1446	}	1373	}
1447		1374
1448	last = top;	1375	last = top;
1449	top = top->above;
1450	}	1376	}
1451		1377
1452	/* Don't want top to be NULL, so set it to the last valid object */	1378	/* Don't want top to be NULL, so set it to the last valid object */
1453	top = last;	1379	top = last;
1454		1380
…		…
1456	* looks like instead of lots of conditions here.	1382	* looks like instead of lots of conditions here.
1457	* makes things faster, and effectively the same result.	1383	* makes things faster, and effectively the same result.
1458	*/	1384	*/
1459		1385
1460	/* Have object 'fall below' other objects that block view.	1386	/* Have object 'fall below' other objects that block view.
1461	* Unless those objects are exits, type 66	1387	* Unless those objects are exits.
1462	* If INS_ON_TOP is used, don't do this processing	1388	* If INS_ON_TOP is used, don't do this processing
1463	* Need to find the object that in fact blocks view, otherwise	1389	* Need to find the object that in fact blocks view, otherwise
1464	* stacking is a bit odd.	1390	* stacking is a bit odd.
1465	*/	1391	*/
1466	if (!(flag & INS_ON_TOP) &&	1392	if (!(flag & INS_ON_TOP)
1467	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1393	&& ms.flags () & P_BLOCKSVIEW
		1394	&& (op->face && !faces [op->face].visibility))
1468	{	1395	{
1469	for (last = top; last != floor; last = last->below)	1396	for (last = top; last != floor; last = last->below)
1470	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1397	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1471	break;	1398	break;
		1399
1472	/* Check to see if we found the object that blocks view,	1400	/* Check to see if we found the object that blocks view,
1473	* and make sure we have a below pointer for it so that	1401	* and make sure we have a below pointer for it so that
1474	* we can get inserted below this one, which requires we	1402	* we can get inserted below this one, which requires we
1475	* set top to the object below us.	1403	* set top to the object below us.
1476	*/	1404	*/
1477	if (last && last->below && last != floor)	1405	if (last && last->below && last != floor)
1478	top = last->below;	1406	top = last->below;
1479	}	1407	}
1480	} /* If objects on this space */	1408	} /* If objects on this space */
1481		1409
1482	if (flag & INS_MAP_LOAD)
1483	top = GET_MAP_TOP (op->map, op->x, op->y);
1484
1485	if (flag & INS_ABOVE_FLOOR_ONLY)	1410	if (flag & INS_ABOVE_FLOOR_ONLY)
1486	top = floor;	1411	top = floor;
1487		1412
1488	/* Top is the object that our object (op) is going to get inserted above.	1413	/* Top is the object that our object (op) is going to get inserted above.
1489	*/	1414	*/
1490		1415
1491	/* First object on this space */	1416	/* First object on this space */
1492	if (!top)	1417	if (!top)
1493	{	1418	{
1494	op->above = GET_MAP_OB (op->map, op->x, op->y);	1419	op->above = ms.bot;
1495		1420
1496	if (op->above)	1421	if (op->above)
1497	op->above->below = op;	1422	op->above->below = op;
1498		1423
1499	op->below = NULL;	1424	op->below = 0;
1500	SET_MAP_OB (op->map, op->x, op->y, op);	1425	ms.bot = op;
1501	}	1426	}
1502	else	1427	else
1503	{ /* get inserted into the stack above top */	1428	{ /* get inserted into the stack above top */
1504	op->above = top->above;	1429	op->above = top->above;
1505		1430
…		…
1508		1433
1509	op->below = top;	1434	op->below = top;
1510	top->above = op;	1435	top->above = op;
1511	}	1436	}
1512		1437
1513	if (op->above == NULL)	1438	if (!op->above)
1514	SET_MAP_TOP (op->map, op->x, op->y, op);	1439	ms.top = op;
1515	} /* else not INS_BELOW_ORIGINATOR */	1440	} /* else not INS_BELOW_ORIGINATOR */
1516		1441
1517	if (op->type == PLAYER)	1442	if (op->type == PLAYER)
		1443	{
1518	op->contr->do_los = 1;	1444	op->contr->do_los = 1;
		1445	++op->map->players;
		1446	op->map->touch ();
		1447	}
1519		1448
1520	/* If we have a floor, we know the player, if any, will be above	1449	op->map->dirty = true;
1521	* it, so save a few ticks and start from there.	1450
1522	*/	1451	if (object *pl = ms.player ())
1523	if (!(flag & INS_MAP_LOAD))	1452	//TODO: the floorbox prev/next might need updating
1524	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1453	//esrv_send_item (pl, op);
1525	if (tmp->type == PLAYER)	1454	//TODO: update floorbox to preserve ordering
1526	tmp->contr->socket.update_look = 1;	1455	if (pl->contr->ns)
		1456	pl->contr->ns->floorbox_update ();
1527		1457
1528	/* If this object glows, it may affect lighting conditions that are	1458	/* If this object glows, it may affect lighting conditions that are
1529	* visible to others on this map. But update_all_los is really	1459	* visible to others on this map. But update_all_los is really
1530	* an inefficient way to do this, as it means los for all players	1460	* an inefficient way to do this, as it means los for all players
1531	* on the map will get recalculated. The players could very well	1461	* on the map will get recalculated. The players could very well
1532	* be far away from this change and not affected in any way -	1462	* be far away from this change and not affected in any way -
1533	* this should get redone to only look for players within range,	1463	* this should get redone to only look for players within range,
1534	* or just updating the P_NEED_UPDATE for spaces within this area	1464	* or just updating the P_UPTODATE for spaces within this area
1535	* of effect may be sufficient.	1465	* of effect may be sufficient.
1536	*/	1466	*/
1537	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1467	if (op->map->darkness && (op->glow_radius != 0))
1538	update_all_los (op->map, op->x, op->y);	1468	update_all_los (op->map, op->x, op->y);
1539		1469
1540	/* updates flags (blocked, alive, no magic, etc) for this map space */	1470	/* updates flags (blocked, alive, no magic, etc) for this map space */
1541	update_object (op, UP_OBJ_INSERT);	1471	update_object (op, UP_OBJ_INSERT);
1542		1472
		1473	INVOKE_OBJECT (INSERT, op);
		1474
1543	/* Don't know if moving this to the end will break anything. However,	1475	/* Don't know if moving this to the end will break anything. However,
1544	* we want to have update_look set above before calling this.	1476	* we want to have floorbox_update called before calling this.
1545	*	1477	*
1546	* check_move_on() must be after this because code called from	1478	* check_move_on() must be after this because code called from
1547	* check_move_on() depends on correct map flags (so functions like	1479	* check_move_on() depends on correct map flags (so functions like
1548	* blocked() and wall() work properly), and these flags are updated by	1480	* blocked() and wall() work properly), and these flags are updated by
1549	* update_object().	1481	* update_object().
1550	*/	1482	*/
1551		1483
1552	/* if this is not the head or flag has been passed, don't check walk on status */	1484	/* if this is not the head or flag has been passed, don't check walk on status */
1553	if (!(flag & INS_NO_WALK_ON) && !op->head)	1485	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1554	{	1486	{
1555	if (check_move_on (op, originator))	1487	if (check_move_on (op, originator))
1556	return NULL;	1488	return 0;
1557		1489
1558	/* If we are a multi part object, lets work our way through the check	1490	/* If we are a multi part object, lets work our way through the check
1559	* walk on's.	1491	* walk on's.
1560	*/	1492	*/
1561	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1493	for (object *tmp = op->more; tmp; tmp = tmp->more)
1562	if (check_move_on (tmp, originator))	1494	if (check_move_on (tmp, originator))
1563	return NULL;	1495	return 0;
1564	}	1496	}
1565		1497
1566	return op;	1498	return op;
1567	}	1499	}
1568		1500
1569	/* this function inserts an object in the map, but if it	1501	/* this function inserts an object in the map, but if it
1570	* finds an object of its own type, it'll remove that one first.	1502	* finds an object of its own type, it'll remove that one first.
1571	* op is the object to insert it under: supplies x and the map.	1503	* op is the object to insert it under: supplies x and the map.
1572	*/	1504	*/
1573	void	1505	void
1574	replace_insert_ob_in_map (const char *arch_string, object *op)	1506	replace_insert_ob_in_map (const char *arch_string, object *op)
1575	{	1507	{
1576	object *
1577	tmp;
1578	object *
1579	tmp1;
1580
1581	/* first search for itself and remove any old instances */	1508	/* first search for itself and remove any old instances */
1582		1509
1583	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1510	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1584	{
1585	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1511	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1586	{	1512	tmp->destroy (1);
1587	remove_ob (tmp);
1588	free_object (tmp);
1589	}
1590	}
1591		1513
1592	tmp1 = arch_to_object (find_archetype (arch_string));	1514	object *tmp = arch_to_object (archetype::find (arch_string));
1593		1515
1594	tmp1->x = op->x;	1516	tmp->x = op->x;
1595	tmp1->y = op->y;	1517	tmp->y = op->y;
		1518
1596	insert_ob_in_map (tmp1, op->map, op, 0);	1519	insert_ob_in_map (tmp, op->map, op, 0);
1597	}	1520	}
1598
1599	/*
1600	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1601	* is returned contains nr objects, and the remaining parts contains
1602	* the rest (or is removed and freed if that number is 0).
1603	* On failure, NULL is returned, and the reason put into the
1604	* global static errmsg array.
1605	*/
1606		1521
1607	object *	1522	object *
1608	get_split_ob (object *orig_ob, uint32 nr)	1523	object::insert_at (object *where, object *originator, int flags)
1609	{	1524	{
1610	object *	1525	if (where->env)
1611	newob;	1526	return where->env->insert (this);
1612	int	1527	else
1613	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1528	return where->map->insert (this, where->x, where->y, originator, flags);
1614
1615	if (orig_ob->nrof < nr)
1616	{
1617	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1618	return NULL;
1619	}
1620
1621	newob = object_create_clone (orig_ob);
1622
1623	if ((orig_ob->nrof -= nr) < 1)
1624	{
1625	if (!is_removed)
1626	remove_ob (orig_ob);
1627	free_object2 (orig_ob, 1);
1628	}
1629	else if (!is_removed)
1630	{
1631	if (orig_ob->env != NULL)
1632	sub_weight (orig_ob->env, orig_ob->weight * nr);
1633	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1634	{
1635	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1636	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1637	return NULL;
1638	}
1639	}
1640
1641	newob->nrof = nr;
1642
1643	return newob;
1644	}	1529	}
1645		1530
1646	/*	1531	/*
1647	* decrease_ob_nr(object, number) decreases a specified number from	1532	* decrease(object, number) decreases a specified number from
1648	* the amount of an object. If the amount reaches 0, the object	1533	* the amount of an object. If the amount reaches 0, the object
1649	* is subsequently removed and freed.	1534	* is subsequently removed and freed.
1650	*	1535	*
1651	* Return value: 'op' if something is left, NULL if the amount reached 0	1536	* Return value: 'op' if something is left, NULL if the amount reached 0
1652	*/	1537	*/
		1538	bool
		1539	object::decrease (sint32 nr)
		1540	{
		1541	if (!nr)
		1542	return true;
1653		1543
		1544	nr = min (nr, nrof);
		1545
		1546	nrof -= nr;
		1547
		1548	if (nrof)
		1549	{
		1550	adjust_weight (env, -weight * nr); // carrying == 0
		1551
		1552	if (object *pl = visible_to ())
		1553	esrv_update_item (UPD_NROF, pl, this);
		1554
		1555	return true;
		1556	}
		1557	else
		1558	{
		1559	destroy (1);
		1560	return false;
		1561	}
		1562	}
		1563
		1564	/*
		1565	* split(ob,nr) splits up ob into two parts. The part which
		1566	* is returned contains nr objects, and the remaining parts contains
		1567	* the rest (or is removed and returned if that number is 0).
		1568	* On failure, NULL is returned.
		1569	*/
1654	object *	1570	object *
1655	decrease_ob_nr (object *op, uint32 i)	1571	object::split (sint32 nr)
1656	{	1572	{
1657	object *tmp;	1573	int have = number_of ();
1658	player *pl;
1659		1574
1660	if (i == 0) /* objects with op->nrof require this check */	1575	if (have < nr)
1661	return op;	1576	return 0;
1662		1577	else if (have == nr)
1663	if (i > op->nrof)
1664	i = op->nrof;
1665
1666	if (QUERY_FLAG (op, FLAG_REMOVED))
1667	op->nrof -= i;
1668	else if (op->env != NULL)
1669	{	1578	{
1670	/* is this object in the players inventory, or sub container
1671	* therein?
1672	*/
1673	tmp = is_player_inv (op->env);
1674	/* nope. Is this a container the player has opened?
1675	* If so, set tmp to that player.
1676	* IMO, searching through all the players will mostly
1677	* likely be quicker than following op->env to the map,
1678	* and then searching the map for a player.
1679	*/
1680	if (!tmp)
1681	{
1682	for (pl = first_player; pl; pl = pl->next)
1683	if (pl->ob->container == op->env)
1684	break;
1685	if (pl)
1686	tmp = pl->ob;
1687	else
1688	tmp = NULL;
1689	}
1690
1691	if (i < op->nrof)
1692	{
1693	sub_weight (op->env, op->weight * i);
1694	op->nrof -= i;
1695	if (tmp)
1696	{
1697	esrv_send_item (tmp, op);
1698	}
1699	}
1700	else
1701	{
1702	remove_ob (op);	1579	remove ();
1703	op->nrof = 0;	1580	return this;
1704	if (tmp)
1705	{
1706	esrv_del_item (tmp->contr, op->count);
1707	}
1708	}
1709	}	1581	}
1710	else	1582	else
1711	{	1583	{
1712	object *above = op->above;	1584	decrease (nr);
1713		1585
1714	if (i < op->nrof)	1586	object *op = deep_clone ();
1715	op->nrof -= i;	1587	op->nrof = nr;
1716	else
1717	{
1718	remove_ob (op);
1719	op->nrof = 0;
1720	}
1721
1722	/* Since we just removed op, op->above is null */
1723	for (tmp = above; tmp != NULL; tmp = tmp->above)
1724	if (tmp->type == PLAYER)
1725	{
1726	if (op->nrof)
1727	esrv_send_item (tmp, op);
1728	else
1729	esrv_del_item (tmp->contr, op->count);
1730	}
1731	}
1732
1733	if (op->nrof)
1734	return op;	1588	return op;
1735	else
1736	{	1589	}
1737	free_object (op);	1590	}
		1591
		1592	object *
		1593	insert_ob_in_ob (object *op, object *where)
		1594	{
		1595	if (!where)
		1596	{
		1597	char *dump = dump_object (op);
		1598	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1599	free (dump);
1738	return NULL;	1600	return op;
1739	}
1740	}
1741
1742	/*
1743	* add_weight(object, weight) adds the specified weight to an object,
1744	* and also updates how much the environment(s) is/are carrying.
1745	*/
1746
1747	void
1748	add_weight (object *op, signed long weight)
1749	{
1750	while (op != NULL)
1751	{	1601	}
1752	if (op->type == CONTAINER)
1753	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1754		1602
1755	op->carrying += weight;	1603	if (where->head_ () != where)
1756	op = op->env;
1757	}	1604	{
1758	}	1605	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1606	where = where->head;
		1607	}
1759		1608
		1609	return where->insert (op);
		1610	}
		1611
1760	/*	1612	/*
1761	* insert_ob_in_ob(op,environment):	1613	* env->insert (op)
1762	* This function inserts the object op in the linked list	1614	* This function inserts the object op in the linked list
1763	* inside the object environment.	1615	* inside the object environment.
1764	*	1616	*
1765	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1766	* the inventory at the last position or next to other objects of the same
1767	* type.
1768	* Frank: Now sorted by type, archetype and magic!
1769	*
1770	* The function returns now pointer to inserted item, and return value can	1617	* The function returns now pointer to inserted item, and return value can
1771	* be != op, if items are merged. -Tero	1618	* be != op, if items are merged. -Tero
1772	*/	1619	*/
1773
1774	object *	1620	object *
1775	insert_ob_in_ob (object *op, object *where)	1621	object::insert (object *op)
1776	{	1622	{
1777	object *
1778	tmp, *
1779	otmp;
1780
1781	if (!QUERY_FLAG (op, FLAG_REMOVED))
1782	{
1783	dump_object (op);
1784	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", errmsg);
1785	return op;
1786	}
1787
1788	if (where == NULL)
1789	{
1790	dump_object (op);
1791	LOG (llevError, "Trying to put object in NULL.\n%s\n", errmsg);
1792	return op;
1793	}
1794
1795	if (where->head)
1796	{
1797	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1798	where = where->head;
1799	}
1800
1801	if (op->more)	1623	if (op->more)
1802	{	1624	{
1803	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1625	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1804	return op;	1626	return op;
1805	}	1627	}
1806		1628
1807	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1629	op->remove ();
1808	CLEAR_FLAG (op, FLAG_REMOVED);	1630
		1631	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1632
1809	if (op->nrof)	1633	if (op->nrof)
1810	{
1811	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1634	for (object *tmp = inv; tmp; tmp = tmp->below)
1812	if (CAN_MERGE (tmp, op))	1635	if (object::can_merge (tmp, op))
1813	{	1636	{
1814	/* return the original object and remove inserted object	1637	/* return the original object and remove inserted object
1815	(client needs the original object) */	1638	(client needs the original object) */
1816	tmp->nrof += op->nrof;	1639	tmp->nrof += op->nrof;
1817	/* Weight handling gets pretty funky. Since we are adding to	1640
1818	* tmp->nrof, we need to increase the weight.	1641	if (object *pl = tmp->visible_to ())
1819	*/	1642	esrv_update_item (UPD_NROF, pl, tmp);
1820	add_weight (where, op->weight * op->nrof);	1643
1821	SET_FLAG (op, FLAG_REMOVED);	1644	adjust_weight (this, op->total_weight ());
1822	free_object (op); /* free the inserted object */	1645
		1646	op->destroy (1);
1823	op = tmp;	1647	op = tmp;
1824	remove_ob (op); /* and fix old object's links */	1648	goto inserted;
1825	CLEAR_FLAG (op, FLAG_REMOVED);
1826	break;
1827	}	1649	}
1828		1650
1829	/* I assume combined objects have no inventory	1651	op->owner = 0; // it's his/hers now. period.
1830	* We add the weight - this object could have just been removed
1831	* (if it was possible to merge). calling remove_ob will subtract
1832	* the weight, so we need to add it in again, since we actually do
1833	* the linking below
1834	*/
1835	add_weight (where, op->weight * op->nrof);
1836	}
1837	else
1838	add_weight (where, (op->weight + op->carrying));
1839
1840	otmp = is_player_inv (where);
1841	if (otmp && otmp->contr != NULL)
1842	{
1843	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1844	fix_player (otmp);
1845	}
1846
1847	op->map = NULL;	1652	op->map = 0;
1848	op->env = where;	1653	op->x = 0;
		1654	op->y = 0;
		1655
1849	op->above = NULL;	1656	op->above = 0;
1850	op->below = NULL;	1657	op->below = inv;
1851	op->x = 0, op->y = 0;	1658	op->env = this;
1852		1659
		1660	if (inv)
		1661	inv->above = op;
		1662
		1663	inv = op;
		1664
		1665	op->flag [FLAG_REMOVED] = 0;
		1666
		1667	if (object *pl = op->visible_to ())
		1668	esrv_send_item (pl, op);
		1669
		1670	adjust_weight (this, op->total_weight ());
		1671
		1672	inserted:
1853	/* reset the light list and los of the players on the map */	1673	/* reset the light list and los of the players on the map */
1854	if ((op->glow_radius != 0) && where->map)	1674	if (op->glow_radius && map && map->darkness)
1855	{	1675	update_all_los (map, x, y);
1856	#ifdef DEBUG_LIGHTS
1857	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1858	#endif /* DEBUG_LIGHTS */
1859	if (MAP_DARKNESS (where->map))
1860	update_all_los (where->map, where->x, where->y);
1861	}
1862		1676
1863	/* Client has no idea of ordering so lets not bother ordering it here.	1677	// if this is a player's inventory, update stats
1864	* It sure simplifies this function...	1678	if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1865	*/	1679	update_stats ();
1866	if (where->inv == NULL)	1680
1867	where->inv = op;	1681	INVOKE_OBJECT (INSERT, this);
1868	else	1682
1869	{
1870	op->below = where->inv;
1871	op->below->above = op;
1872	where->inv = op;
1873	}
1874	return op;	1683	return op;
1875	}	1684	}
1876		1685
1877	/*	1686	/*
1878	* Checks if any objects has a move_type that matches objects	1687	* Checks if any objects has a move_type that matches objects
…		…
1892	*	1701	*
1893	* MSW 2001-07-08: Check all objects on space, not just those below	1702	* MSW 2001-07-08: Check all objects on space, not just those below
1894	* object being inserted. insert_ob_in_map may not put new objects	1703	* object being inserted. insert_ob_in_map may not put new objects
1895	* on top.	1704	* on top.
1896	*/	1705	*/
1897
1898	int	1706	int
1899	check_move_on (object *op, object *originator)	1707	check_move_on (object *op, object *originator)
1900	{	1708	{
1901	object *	1709	object *tmp;
1902	tmp;	1710	maptile *m = op->map;
1903	tag_t
1904	tag;
1905	mapstruct *
1906	m = op->map;
1907	int
1908	x = op->x, y = op->y;	1711	int x = op->x, y = op->y;
1909		1712
1910	MoveType	1713	MoveType move_on, move_slow, move_block;
1911	move_on,
1912	move_slow,
1913	move_block;
1914		1714
1915	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1715	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1916	return 0;	1716	return 0;
1917
1918	tag = op->count;
1919		1717
1920	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1718	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1921	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1719	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1922	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1720	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1923		1721
…		…
1939		1737
1940	/* The objects have to be checked from top to bottom.	1738	/* The objects have to be checked from top to bottom.
1941	* Hence, we first go to the top:	1739	* Hence, we first go to the top:
1942	*/	1740	*/
1943		1741
1944	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1742	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1945	{	1743	{
1946	/* Trim the search when we find the first other spell effect	1744	/* Trim the search when we find the first other spell effect
1947	* this helps performance so that if a space has 50 spell objects,	1745	* this helps performance so that if a space has 50 spell objects,
1948	* we don't need to check all of them.	1746	* we don't need to check all of them.
1949	*/	1747	*/
…		…
1967	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1765	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1968	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1766	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1969	{	1767	{
1970		1768
1971	float	1769	float
1972	diff = tmp->move_slow_penalty * FABS (op->speed);	1770	diff = tmp->move_slow_penalty * fabs (op->speed);
1973		1771
1974	if (op->type == PLAYER)	1772	if (op->type == PLAYER)
1975	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1773	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1976	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1774	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1977	diff /= 4.0;	1775	diff /= 4.0;
…		…
1984	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1782	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1985	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))	1783	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1986	{	1784	{
1987	move_apply (tmp, op, originator);	1785	move_apply (tmp, op, originator);
1988		1786
1989	if (was_destroyed (op, tag))	1787	if (op->destroyed ())
1990	return 1;	1788	return 1;
1991		1789
1992	/* what the person/creature stepped onto has moved the object	1790	/* what the person/creature stepped onto has moved the object
1993	* someplace new. Don't process any further - if we did,	1791	* someplace new. Don't process any further - if we did,
1994	* have a feeling strange problems would result.	1792	* have a feeling strange problems would result.
…		…
2004	/*	1802	/*
2005	* present_arch(arch, map, x, y) searches for any objects with	1803	* present_arch(arch, map, x, y) searches for any objects with
2006	* a matching archetype at the given map and coordinates.	1804	* a matching archetype at the given map and coordinates.
2007	* The first matching object is returned, or NULL if none.	1805	* The first matching object is returned, or NULL if none.
2008	*/	1806	*/
2009
2010	object *	1807	object *
2011	present_arch (const archetype *at, mapstruct *m, int x, int y)	1808	present_arch (const archetype *at, maptile *m, int x, int y)
2012	{	1809	{
2013	object *
2014	tmp;
2015
2016	if (m == NULL || out_of_map (m, x, y))	1810	if (!m || out_of_map (m, x, y))
2017	{	1811	{
2018	LOG (llevError, "Present_arch called outside map.\n");	1812	LOG (llevError, "Present_arch called outside map.\n");
2019	return NULL;	1813	return NULL;
2020	}	1814	}
2021	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1815
2022	if (tmp->arch == at)	1816	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1817	if (tmp->arch->archname == at->archname)
2023	return tmp;	1818	return tmp;
		1819
2024	return NULL;	1820	return NULL;
2025	}	1821	}
2026		1822
2027	/*	1823	/*
2028	* present(type, map, x, y) searches for any objects with	1824	* present(type, map, x, y) searches for any objects with
2029	* a matching type variable at the given map and coordinates.	1825	* a matching type variable at the given map and coordinates.
2030	* The first matching object is returned, or NULL if none.	1826	* The first matching object is returned, or NULL if none.
2031	*/	1827	*/
2032
2033	object *	1828	object *
2034	present (unsigned char type, mapstruct *m, int x, int y)	1829	present (unsigned char type, maptile *m, int x, int y)
2035	{	1830	{
2036	object *
2037	tmp;
2038
2039	if (out_of_map (m, x, y))	1831	if (out_of_map (m, x, y))
2040	{	1832	{
2041	LOG (llevError, "Present called outside map.\n");	1833	LOG (llevError, "Present called outside map.\n");
2042	return NULL;	1834	return NULL;
2043	}	1835	}
2044	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1836
		1837	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2045	if (tmp->type == type)	1838	if (tmp->type == type)
2046	return tmp;	1839	return tmp;
		1840
2047	return NULL;	1841	return NULL;
2048	}	1842	}
2049		1843
2050	/*	1844	/*
2051	* present_in_ob(type, object) searches for any objects with	1845	* present_in_ob(type, object) searches for any objects with
2052	* a matching type variable in the inventory of the given object.	1846	* a matching type variable in the inventory of the given object.
2053	* The first matching object is returned, or NULL if none.	1847	* The first matching object is returned, or NULL if none.
2054	*/	1848	*/
2055
2056	object *	1849	object *
2057	present_in_ob (unsigned char type, const object *op)	1850	present_in_ob (unsigned char type, const object *op)
2058	{	1851	{
2059	object *
2060	tmp;
2061
2062	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1852	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2063	if (tmp->type == type)	1853	if (tmp->type == type)
2064	return tmp;	1854	return tmp;
		1855
2065	return NULL;	1856	return NULL;
2066	}	1857	}
2067		1858
2068	/*	1859	/*
2069	* present_in_ob (type, str, object) searches for any objects with	1860	* present_in_ob (type, str, object) searches for any objects with
…		…
2077	* str is the string to match against. Note that we match against	1868	* str is the string to match against. Note that we match against
2078	* the object name, not the archetype name. this is so that the	1869	* the object name, not the archetype name. this is so that the
2079	* spell code can use one object type (force), but change it's name	1870	* spell code can use one object type (force), but change it's name
2080	* to be unique.	1871	* to be unique.
2081	*/	1872	*/
2082
2083	object *	1873	object *
2084	present_in_ob_by_name (int type, const char *str, const object *op)	1874	present_in_ob_by_name (int type, const char *str, const object *op)
2085	{	1875	{
2086	object *
2087	tmp;
2088
2089	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1876	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2090	{
2091	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1877	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2092	return tmp;	1878	return tmp;
2093	}	1879
2094	return NULL;	1880	return 0;
2095	}	1881	}
2096		1882
2097	/*	1883	/*
2098	* present_arch_in_ob(archetype, object) searches for any objects with	1884	* present_arch_in_ob(archetype, object) searches for any objects with
2099	* a matching archetype in the inventory of the given object.	1885	* a matching archetype in the inventory of the given object.
2100	* The first matching object is returned, or NULL if none.	1886	* The first matching object is returned, or NULL if none.
2101	*/	1887	*/
2102
2103	object *	1888	object *
2104	present_arch_in_ob (const archetype *at, const object *op)	1889	present_arch_in_ob (const archetype *at, const object *op)
2105	{	1890	{
2106	object *
2107	tmp;
2108
2109	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1891	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2110	if (tmp->arch == at)	1892	if (tmp->arch->archname == at->archname)
2111	return tmp;	1893	return tmp;
		1894
2112	return NULL;	1895	return NULL;
2113	}	1896	}
2114		1897
2115	/*	1898	/*
2116	* activate recursively a flag on an object inventory	1899	* activate recursively a flag on an object inventory
2117	*/	1900	*/
2118	void	1901	void
2119	flag_inv (object *op, int flag)	1902	flag_inv (object *op, int flag)
2120	{	1903	{
2121	object *
2122	tmp;
2123
2124	if (op->inv)
2125	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1904	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2126	{	1905	{
2127	SET_FLAG (tmp, flag);	1906	SET_FLAG (tmp, flag);
2128	flag_inv (tmp, flag);	1907	flag_inv (tmp, flag);
2129	}	1908	}
2130	} /*	1909	}
		1910
		1911	/*
2131	* desactivate recursively a flag on an object inventory	1912	* deactivate recursively a flag on an object inventory
2132	*/	1913	*/
2133	void	1914	void
2134	unflag_inv (object *op, int flag)	1915	unflag_inv (object *op, int flag)
2135	{	1916	{
2136	object *
2137	tmp;
2138
2139	if (op->inv)
2140	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1917	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2141	{	1918	{
2142	CLEAR_FLAG (tmp, flag);	1919	CLEAR_FLAG (tmp, flag);
2143	unflag_inv (tmp, flag);	1920	unflag_inv (tmp, flag);
2144	}	1921	}
2145	}
2146
2147	/*
2148	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2149	* all it's inventory (recursively).
2150	* If checksums are used, a player will get set_cheat called for
2151	* him/her-self and all object carried by a call to this function.
2152	*/
2153
2154	void
2155	set_cheat (object *op)
2156	{
2157	SET_FLAG (op, FLAG_WAS_WIZ);
2158	flag_inv (op, FLAG_WAS_WIZ);
2159	}	1922	}
2160		1923
2161	/*	1924	/*
2162	* find_free_spot(object, map, x, y, start, stop) will search for	1925	* find_free_spot(object, map, x, y, start, stop) will search for
2163	* a spot at the given map and coordinates which will be able to contain	1926	* a spot at the given map and coordinates which will be able to contain
…		…
2165	* to search (see the freearr_x/y[] definition).	1928	* to search (see the freearr_x/y[] definition).
2166	* It returns a random choice among the alternatives found.	1929	* It returns a random choice among the alternatives found.
2167	* start and stop are where to start relative to the free_arr array (1,9	1930	* start and stop are where to start relative to the free_arr array (1,9
2168	* does all 4 immediate directions). This returns the index into the	1931	* does all 4 immediate directions). This returns the index into the
2169	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1932	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2170	* Note - this only checks to see if there is space for the head of the
2171	* object - if it is a multispace object, this should be called for all
2172	* pieces.
2173	* Note2: This function does correctly handle tiled maps, but does not	1933	* Note: This function does correctly handle tiled maps, but does not
2174	* inform the caller. However, insert_ob_in_map will update as	1934	* inform the caller. However, insert_ob_in_map will update as
2175	* necessary, so the caller shouldn't need to do any special work.	1935	* necessary, so the caller shouldn't need to do any special work.
2176	* Note - updated to take an object instead of archetype - this is necessary	1936	* Note - updated to take an object instead of archetype - this is necessary
2177	* because arch_blocked (now ob_blocked) needs to know the movement type	1937	* because arch_blocked (now ob_blocked) needs to know the movement type
2178	* to know if the space in question will block the object. We can't use	1938	* to know if the space in question will block the object. We can't use
2179	* the archetype because that isn't correct if the monster has been	1939	* the archetype because that isn't correct if the monster has been
2180	* customized, changed states, etc.	1940	* customized, changed states, etc.
2181	*/	1941	*/
2182
2183	int	1942	int
2184	find_free_spot (const object *ob, mapstruct *m, int x, int y, int start, int stop)	1943	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2185	{	1944	{
2186	int
2187	i,
2188	index = 0, flag;
2189	static int
2190	altern[SIZEOFFREE];	1945	int altern[SIZEOFFREE];
		1946	int index = 0, flag;
2191		1947
2192	for (i = start; i < stop; i++)	1948	for (int i = start; i < stop; i++)
2193	{	1949	{
2194	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1950	mapxy pos (m, x, y); pos.move (i);
2195	if (!flag)	1951
		1952	if (!pos.normalise ())
		1953	continue;
		1954
		1955	mapspace &ms = *pos;
		1956
		1957	if (ms.flags () & P_IS_ALIVE)
		1958	continue;
		1959
		1960	/* However, often
		1961	* ob doesn't have any move type (when used to place exits)
		1962	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1963	*/
		1964	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1965	{
2196	altern[index++] = i;	1966	altern [index++] = i;
		1967	continue;
		1968	}
2197		1969
2198	/* Basically, if we find a wall on a space, we cut down the search size.	1970	/* Basically, if we find a wall on a space, we cut down the search size.
2199	* In this way, we won't return spaces that are on another side of a wall.	1971	* In this way, we won't return spaces that are on another side of a wall.
2200	* This mostly work, but it cuts down the search size in all directions -	1972	* This mostly work, but it cuts down the search size in all directions -
2201	* if the space being examined only has a wall to the north and empty	1973	* if the space being examined only has a wall to the north and empty
2202	* spaces in all the other directions, this will reduce the search space	1974	* spaces in all the other directions, this will reduce the search space
2203	* to only the spaces immediately surrounding the target area, and	1975	* to only the spaces immediately surrounding the target area, and
2204	* won't look 2 spaces south of the target space.	1976	* won't look 2 spaces south of the target space.
2205	*/	1977	*/
2206	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	1978	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1979	{
2207	stop = maxfree[i];	1980	stop = maxfree[i];
		1981	continue;
		1982	}
		1983
		1984	/* Note it is intentional that we check ob - the movement type of the
		1985	* head of the object should correspond for the entire object.
		1986	*/
		1987	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1988	continue;
		1989
		1990	if (ob->blocked (m, pos.x, pos.y))
		1991	continue;
		1992
		1993	altern [index++] = i;
2208	}	1994	}
		1995
2209	if (!index)	1996	if (!index)
2210	return -1;	1997	return -1;
		1998
2211	return altern[RANDOM () % index];	1999	return altern [rndm (index)];
2212	}	2000	}
2213		2001
2214	/*	2002	/*
2215	* find_first_free_spot(archetype, mapstruct, x, y) works like	2003	* find_first_free_spot(archetype, maptile, x, y) works like
2216	* find_free_spot(), but it will search max number of squares.	2004	* find_free_spot(), but it will search max number of squares.
2217	* But it will return the first available spot, not a random choice.	2005	* But it will return the first available spot, not a random choice.
2218	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2006	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2219	*/	2007	*/
2220
2221	int	2008	int
2222	find_first_free_spot (const object *ob, mapstruct *m, int x, int y)	2009	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2223	{	2010	{
2224	int
2225	i;
2226
2227	for (i = 0; i < SIZEOFFREE; i++)	2011	for (int i = 0; i < SIZEOFFREE; i++)
2228	{
2229	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2012	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2230	return i;	2013	return i;
2231	}	2014
2232	return -1;	2015	return -1;
2233	}	2016	}
2234		2017
2235	/*	2018	/*
2236	* The function permute(arr, begin, end) randomly reorders the array	2019	* The function permute(arr, begin, end) randomly reorders the array
2237	* arr[begin..end-1].	2020	* arr[begin..end-1].
		2021	* now uses a fisher-yates shuffle, old permute was broken
2238	*/	2022	*/
2239	static void	2023	static void
2240	permute (int *arr, int begin, int end)	2024	permute (int *arr, int begin, int end)
2241	{	2025	{
2242	int	2026	arr += begin;
2243	i,
2244	j,
2245	tmp,
2246	len;
2247
2248	len = end - begin;	2027	end -= begin;
2249	for (i = begin; i < end; i++)
2250	{
2251	j = begin + RANDOM () % len;
2252		2028
2253	tmp = arr[i];	2029	while (--end)
2254	arr[i] = arr[j];	2030	swap (arr [end], arr [rndm (end + 1)]);
2255	arr[j] = tmp;
2256	}
2257	}	2031	}
2258		2032
2259	/* new function to make monster searching more efficient, and effective!	2033	/* new function to make monster searching more efficient, and effective!
2260	* This basically returns a randomized array (in the passed pointer) of	2034	* This basically returns a randomized array (in the passed pointer) of
2261	* the spaces to find monsters. In this way, it won't always look for	2035	* the spaces to find monsters. In this way, it won't always look for
…		…
2264	* the 3x3 area will be searched, just not in a predictable order.	2038	* the 3x3 area will be searched, just not in a predictable order.
2265	*/	2039	*/
2266	void	2040	void
2267	get_search_arr (int *search_arr)	2041	get_search_arr (int *search_arr)
2268	{	2042	{
2269	int	2043	int i;
2270	i;
2271		2044
2272	for (i = 0; i < SIZEOFFREE; i++)	2045	for (i = 0; i < SIZEOFFREE; i++)
2273	{
2274	search_arr[i] = i;	2046	search_arr[i] = i;
2275	}
2276		2047
2277	permute (search_arr, 1, SIZEOFFREE1 + 1);	2048	permute (search_arr, 1, SIZEOFFREE1 + 1);
2278	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2049	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2279	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2050	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2280	}	2051	}
…		…
2289	* Perhaps incorrectly, but I'm making the assumption that exclude	2060	* Perhaps incorrectly, but I'm making the assumption that exclude
2290	* is actually want is going to try and move there. We need this info	2061	* is actually want is going to try and move there. We need this info
2291	* because we have to know what movement the thing looking to move	2062	* because we have to know what movement the thing looking to move
2292	* there is capable of.	2063	* there is capable of.
2293	*/	2064	*/
2294
2295	int	2065	int
2296	find_dir (mapstruct *m, int x, int y, object *exclude)	2066	find_dir (maptile *m, int x, int y, object *exclude)
2297	{	2067	{
2298	int
2299	i,
2300	max = SIZEOFFREE, mflags;	2068	int i, max = SIZEOFFREE, mflags;
2301		2069
2302	sint16 nx, ny;	2070	sint16 nx, ny;
2303	object *	2071	object *tmp;
2304	tmp;	2072	maptile *mp;
2305	mapstruct *
2306	mp;
2307		2073
2308	MoveType blocked, move_type;	2074	MoveType blocked, move_type;
2309		2075
2310	if (exclude && exclude->head)	2076	if (exclude && exclude->head_ () != exclude)
2311	{	2077	{
2312	exclude = exclude->head;	2078	exclude = exclude->head;
2313	move_type = exclude->move_type;	2079	move_type = exclude->move_type;
2314	}	2080	}
2315	else	2081	else
…		…
2323	mp = m;	2089	mp = m;
2324	nx = x + freearr_x[i];	2090	nx = x + freearr_x[i];
2325	ny = y + freearr_y[i];	2091	ny = y + freearr_y[i];
2326		2092
2327	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2093	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2094
2328	if (mflags & P_OUT_OF_MAP)	2095	if (mflags & P_OUT_OF_MAP)
2329	{
2330	max = maxfree[i];	2096	max = maxfree[i];
2331	}
2332	else	2097	else
2333	{	2098	{
2334	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2099	mapspace &ms = mp->at (nx, ny);
		2100
		2101	blocked = ms.move_block;
2335		2102
2336	if ((move_type & blocked) == move_type)	2103	if ((move_type & blocked) == move_type)
2337	{
2338	max = maxfree[i];	2104	max = maxfree[i];
2339	}
2340	else if (mflags & P_IS_ALIVE)	2105	else if (mflags & P_IS_ALIVE)
2341	{	2106	{
2342	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2107	for (tmp = ms.bot; tmp; tmp = tmp->above)
2343	{	2108	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2344	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2109	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2345	{
2346	break;	2110	break;
2347	}	2111
2348	}
2349	if (tmp)	2112	if (tmp)
2350	{
2351	return freedir[i];	2113	return freedir[i];
2352	}
2353	}	2114	}
2354	}	2115	}
2355	}	2116	}
		2117
2356	return 0;	2118	return 0;
2357	}	2119	}
2358		2120
2359	/*	2121	/*
2360	* distance(object 1, object 2) will return the square of the	2122	* distance(object 1, object 2) will return the square of the
2361	* distance between the two given objects.	2123	* distance between the two given objects.
2362	*/	2124	*/
2363
2364	int	2125	int
2365	distance (const object *ob1, const object *ob2)	2126	distance (const object *ob1, const object *ob2)
2366	{	2127	{
2367	int
2368	i;
2369
2370	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2128	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2371	return i;
2372	}	2129	}
2373		2130
2374	/*	2131	/*
2375	* find_dir_2(delta-x,delta-y) will return a direction in which	2132	* find_dir_2(delta-x,delta-y) will return a direction in which
2376	* an object which has subtracted the x and y coordinates of another	2133	* an object which has subtracted the x and y coordinates of another
2377	* object, needs to travel toward it.	2134	* object, needs to travel toward it.
2378	*/	2135	*/
2379
2380	int	2136	int
2381	find_dir_2 (int x, int y)	2137	find_dir_2 (int x, int y)
2382	{	2138	{
2383	int	2139	int q;
2384	q;
2385		2140
2386	if (y)	2141	if (y)
2387	q = x * 100 / y;	2142	q = x * 100 / y;
2388	else if (x)	2143	else if (x)
2389	q = -300 * x;	2144	q = -300 * x;
…		…
2414		2169
2415	return 3;	2170	return 3;
2416	}	2171	}
2417		2172
2418	/*	2173	/*
2419	* absdir(int): Returns a number between 1 and 8, which represent
2420	* the "absolute" direction of a number (it actually takes care of
2421	* "overflow" in previous calculations of a direction).
2422	*/
2423
2424	int
2425	absdir (int d)
2426	{
2427	while (d < 1)
2428	d += 8;
2429	while (d > 8)
2430	d -= 8;
2431	return d;
2432	}
2433
2434	/*
2435	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2174	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2436	* between two directions (which are expected to be absolute (see absdir())	2175	* between two directions (which are expected to be absolute (see absdir())
2437	*/	2176	*/
2438
2439	int	2177	int
2440	dirdiff (int dir1, int dir2)	2178	dirdiff (int dir1, int dir2)
2441	{	2179	{
2442	int	2180	int d;
2443	d;
2444		2181
2445	d = abs (dir1 - dir2);	2182	d = abs (dir1 - dir2);
2446	if (d > 4)	2183	if (d > 4)
2447	d = 8 - d;	2184	d = 8 - d;
		2185
2448	return d;	2186	return d;
2449	}	2187	}
2450		2188
2451	/* peterm:	2189	/* peterm:
2452	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2190	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2455	* This basically means that if direction is 15, then it could either go	2193	* This basically means that if direction is 15, then it could either go
2456	* direction 4, 14, or 16 to get back to where we are.	2194	* direction 4, 14, or 16 to get back to where we are.
2457	* Moved from spell_util.c to object.c with the other related direction	2195	* Moved from spell_util.c to object.c with the other related direction
2458	* functions.	2196	* functions.
2459	*/	2197	*/
2460
2461	int
2462	reduction_dir[SIZEOFFREE][3] = {	2198	int reduction_dir[SIZEOFFREE][3] = {
2463	{0, 0, 0}, /* 0 */	2199	{0, 0, 0}, /* 0 */
2464	{0, 0, 0}, /* 1 */	2200	{0, 0, 0}, /* 1 */
2465	{0, 0, 0}, /* 2 */	2201	{0, 0, 0}, /* 2 */
2466	{0, 0, 0}, /* 3 */	2202	{0, 0, 0}, /* 3 */
2467	{0, 0, 0}, /* 4 */	2203	{0, 0, 0}, /* 4 */
…		…
2515	* find a path to that monster that we found. If not,	2251	* find a path to that monster that we found. If not,
2516	* we don't bother going toward it. Returns 1 if we	2252	* we don't bother going toward it. Returns 1 if we
2517	* can see a direct way to get it	2253	* can see a direct way to get it
2518	* Modified to be map tile aware -.MSW	2254	* Modified to be map tile aware -.MSW
2519	*/	2255	*/
2520
2521
2522	int	2256	int
2523	can_see_monsterP (mapstruct *m, int x, int y, int dir)	2257	can_see_monsterP (maptile *m, int x, int y, int dir)
2524	{	2258	{
2525	sint16 dx, dy;	2259	sint16 dx, dy;
2526	int
2527	mflags;	2260	int mflags;
2528		2261
2529	if (dir < 0)	2262	if (dir < 0)
2530	return 0; /* exit condition: invalid direction */	2263	return 0; /* exit condition: invalid direction */
2531		2264
2532	dx = x + freearr_x[dir];	2265	dx = x + freearr_x[dir];
…		…
2545	return 0;	2278	return 0;
2546		2279
2547	/* yes, can see. */	2280	/* yes, can see. */
2548	if (dir < 9)	2281	if (dir < 9)
2549	return 1;	2282	return 1;
		2283
2550	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2284	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2551	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2285	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2286	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2552	}	2287	}
2553
2554
2555		2288
2556	/*	2289	/*
2557	* can_pick(picker, item): finds out if an object is possible to be	2290	* can_pick(picker, item): finds out if an object is possible to be
2558	* picked up by the picker. Returnes 1 if it can be	2291	* picked up by the picker. Returnes 1 if it can be
2559	* picked up, otherwise 0.	2292	* picked up, otherwise 0.
…		…
2561	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2294	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2562	* core dumps if they do.	2295	* core dumps if they do.
2563	*	2296	*
2564	* Add a check so we can't pick up invisible objects (0.93.8)	2297	* Add a check so we can't pick up invisible objects (0.93.8)
2565	*/	2298	*/
2566
2567	int	2299	int
2568	can_pick (const object *who, const object *item)	2300	can_pick (const object *who, const object *item)
2569	{	2301	{
2570	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2302	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2571	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2303	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2572	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2304	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2573	}	2305	}
2574		2306
2575
2576	/*	2307	/*
2577	* create clone from object to another	2308	* create clone from object to another
2578	*/	2309	*/
2579	object *	2310	object *
2580	object_create_clone (object *asrc)	2311	object::deep_clone ()
2581	{	2312	{
2582	object *	2313	assert (("deep_clone called on non-head object", is_head ()));
2583	dst = NULL, *tmp, *src, *part, *prev, *item;
2584		2314
2585	if (!asrc)	2315	object *dst = clone ();
2586	return NULL;
2587	src = asrc;
2588	if (src->head)
2589	src = src->head;
2590		2316
2591	prev = NULL;	2317	object *prev = dst;
2592	for (part = src; part; part = part->more)	2318	for (object *part = this->more; part; part = part->more)
2593	{	2319	{
2594	tmp = get_object ();	2320	object *tmp = part->clone ();
2595	copy_object (part, tmp);
2596	tmp->x -= src->x;
2597	tmp->y -= src->y;
2598	if (!part->head)
2599	{
2600	dst = tmp;
2601	tmp->head = NULL;
2602	}
2603	else
2604	{
2605	tmp->head = dst;	2321	tmp->head = dst;
2606	}
2607	tmp->more = NULL;
2608	if (prev)
2609	prev->more = tmp;	2322	prev->more = tmp;
2610	prev = tmp;	2323	prev = tmp;
2611	}	2324	}
2612		2325
2613	/*** copy inventory ***/
2614	for (item = src->inv; item; item = item->below)	2326	for (object *item = inv; item; item = item->below)
2615	{	2327	insert_ob_in_ob (item->deep_clone (), dst);
2616	(void) insert_ob_in_ob (object_create_clone (item), dst);
2617	}
2618		2328
2619	return dst;	2329	return dst;
2620	}
2621
2622	/* return true if the object was destroyed, 0 otherwise */
2623	int
2624	was_destroyed (const object *op, tag_t old_tag)
2625	{
2626	/* checking for FLAG_FREED isn't necessary, but makes this function more
2627	* robust */
2628	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2629	}
2630
2631	/* GROS - Creates an object using a string representing its content. */
2632
2633	/* Basically, we save the content of the string to a temp file, then call */
2634
2635	/* load_object on it. I admit it is a highly inefficient way to make things, */
2636
2637	/* but it was simple to make and allows reusing the load_object function. */
2638
2639	/* Remember not to use load_object_str in a time-critical situation. */
2640
2641	/* Also remember that multiparts objects are not supported for now. */
2642
2643	object *
2644	load_object_str (const char *obstr)
2645	{
2646	object *
2647	op;
2648	char
2649	filename[MAX_BUF];
2650
2651	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2652
2653	FILE *
2654	tempfile = fopen (filename, "w");
2655
2656	if (tempfile == NULL)
2657	{
2658	LOG (llevError, "Error - Unable to access load object temp file\n");
2659	return NULL;
2660	};
2661	fprintf (tempfile, obstr);
2662	fclose (tempfile);
2663
2664	op = get_object ();
2665
2666	object_thawer thawer (filename);
2667
2668	if (thawer)
2669	load_object (thawer, op, 0);
2670
2671	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2672	CLEAR_FLAG (op, FLAG_REMOVED);
2673
2674	return op;
2675	}	2330	}
2676		2331
2677	/* This returns the first object in who's inventory that	2332	/* This returns the first object in who's inventory that
2678	* has the same type and subtype match.	2333	* has the same type and subtype match.
2679	* returns NULL if no match.	2334	* returns NULL if no match.
2680	*/	2335	*/
2681	object *	2336	object *
2682	find_obj_by_type_subtype (const object *who, int type, int subtype)	2337	find_obj_by_type_subtype (const object *who, int type, int subtype)
2683	{	2338	{
2684	object *
2685	tmp;
2686
2687	for (tmp = who->inv; tmp; tmp = tmp->below)	2339	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2688	if (tmp->type == type && tmp->subtype == subtype)	2340	if (tmp->type == type && tmp->subtype == subtype)
2689	return tmp;	2341	return tmp;
2690		2342
2691	return NULL;	2343	return 0;
2692	}	2344	}
2693		2345
2694	/* If ob has a field named key, return the link from the list,	2346	const shstr &
2695	* otherwise return NULL.	2347	object::kv_get (const shstr &key) const
2696	*
2697	* key must be a passed in shared string - otherwise, this won't
2698	* do the desired thing.
2699	*/
2700	key_value *
2701	get_ob_key_link (const object *ob, const char *key)
2702	{	2348	{
2703	key_value *	2349	for (key_value *kv = key_values; kv; kv = kv->next)
2704	link;
2705
2706	for (link = ob->key_values; link != NULL; link = link->next)
2707	{
2708	if (link->key == key)	2350	if (kv->key == key)
		2351	return kv->value;
		2352
		2353	return shstr_null;
		2354	}
		2355
		2356	void
		2357	object::kv_set (const shstr &key, const shstr &value)
		2358	{
		2359	for (key_value *kv = key_values; kv; kv = kv->next)
		2360	if (kv->key == key)
		2361	{
		2362	kv->value = value;
		2363	return;
		2364	}
		2365
		2366	key_value *kv = new key_value;
		2367
		2368	kv->next = key_values;
		2369	kv->key = key;
		2370	kv->value = value;
		2371
		2372	key_values = kv;
		2373	}
		2374
		2375	void
		2376	object::kv_del (const shstr &key)
		2377	{
		2378	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2379	if ((*kvp)->key == key)
		2380	{
		2381	key_value *kv = *kvp;
		2382	*kvp = (*kvp)->next;
		2383	delete kv;
		2384	return;
		2385	}
		2386	}
		2387
		2388	object::depth_iterator::depth_iterator (object *container)
		2389	: iterator_base (container)
		2390	{
		2391	while (item->inv)
		2392	item = item->inv;
		2393	}
		2394
		2395	void
		2396	object::depth_iterator::next ()
		2397	{
		2398	if (item->below)
		2399	{
		2400	item = item->below;
		2401
		2402	while (item->inv)
		2403	item = item->inv;
		2404	}
		2405	else
		2406	item = item->env;
		2407	}
		2408
		2409	const char *
		2410	object::flag_desc (char *desc, int len) const
		2411	{
		2412	char *p = desc;
		2413	bool first = true;
		2414
		2415	*p = 0;
		2416
		2417	for (int i = 0; i < NUM_FLAGS; i++)
		2418	{
		2419	if (len <= 10) // magic constant!
2709	{	2420	{
2710	return link;	2421	snprintf (p, len, ",...");
		2422	break;
2711	}	2423	}
2712	}
2713		2424
2714	return NULL;	2425	if (flag [i])
2715	}	2426	{
		2427	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2428	len -= cnt;
		2429	p += cnt;
		2430	first = false;
		2431	}
		2432	}
2716		2433
2717	/*	2434	return desc;
2718	* Returns the value of op has an extra_field for key, or NULL.	2435	}
2719	*	2436
2720	* The argument doesn't need to be a shared string.	2437	// return a suitable string describing an object in enough detail to find it
2721	*
2722	* The returned string is shared.
2723	*/
2724	const char *	2438	const char *
2725	get_ob_key_value (const object *op, const char *const key)	2439	object::debug_desc (char *info) const
2726	{	2440	{
2727	key_value *	2441	char flagdesc[512];
2728	link;	2442	char info2[256 * 4];
		2443	char *p = info;
		2444
		2445	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s,flags:[%s],type:%d}",
		2446	count,
		2447	uuid.c_str (),
		2448	&name,
		2449	title ? "\",title:\"" : "",
		2450	title ? (const char *)title : "",
		2451	flag_desc (flagdesc, 512), type);
		2452
		2453	if (!flag[FLAG_REMOVED] && env)
		2454	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2455
		2456	if (map)
		2457	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2458
		2459	return info;
		2460	}
		2461
2729	const char *	2462	const char *
2730	canonical_key;	2463	object::debug_desc () const
		2464	{
		2465	static char info[3][256 * 4];
		2466	static int info_idx;
2731		2467
2732	canonical_key = shstr::find (key);	2468	return debug_desc (info [++info_idx % 3]);
		2469	}
2733		2470
2734	if (canonical_key == NULL)	2471	struct region *
2735	{	2472	object::region () const
2736	/* 1. There being a field named key on any object	2473	{
2737	* implies there'd be a shared string to find.	2474	return map ? map->region (x, y)
2738	* 2. Since there isn't, no object has this field.	2475	: region::default_region ();
2739	* 3. Therefore, *this* object doesn't have this field.	2476	}
2740	*/	2477
		2478	const materialtype_t *
		2479	object::dominant_material () const
		2480	{
		2481	if (materialtype_t *mt = name_to_material (materialname))
		2482	return mt;
		2483
		2484	return name_to_material (shstr_unknown);
		2485	}
		2486
		2487	void
		2488	object::open_container (object *new_container)
		2489	{
		2490	if (container == new_container)
2741	return NULL;	2491	return;
		2492
		2493	object *old_container = container;
		2494
		2495	if (old_container)
2742	}	2496	{
		2497	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2498	return;
2743		2499
2744	/* This is copied from get_ob_key_link() above -	2500	#if 0
2745	* only 4 lines, and saves the function call overhead.	2501	// remove the "Close old_container" object.
		2502	if (object *closer = old_container->inv)
		2503	if (closer->type == CLOSE_CON)
		2504	closer->destroy ();
		2505	#endif
		2506
		2507	// make sure the container is available
		2508	esrv_send_item (this, old_container);
		2509
		2510	old_container->flag [FLAG_APPLIED] = false;
		2511	container = 0;
		2512
		2513	// client needs item update to make it work, client bug requires this to be separate
		2514	esrv_update_item (UPD_FLAGS, this, old_container);
		2515
		2516	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2517	play_sound (sound_find ("chest_close"));
		2518	}
		2519
		2520	if (new_container)
		2521	{
		2522	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2523	return;
		2524
		2525	// TODO: this does not seem to serve any purpose anymore?
		2526	#if 0
		2527	// insert the "Close Container" object.
		2528	if (archetype *closer = new_container->other_arch)
		2529	{
		2530	object *closer = arch_to_object (new_container->other_arch);
		2531	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2532	new_container->insert (closer);
		2533	}
		2534	#endif
		2535
		2536	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2537
		2538	// make sure the container is available, client bug requires this to be separate
		2539	esrv_send_item (this, new_container);
		2540
		2541	new_container->flag [FLAG_APPLIED] = true;
		2542	container = new_container;
		2543
		2544	// client needs flag change
		2545	esrv_update_item (UPD_FLAGS, this, new_container);
		2546	esrv_send_inventory (this, new_container);
		2547	play_sound (sound_find ("chest_open"));
		2548	}
		2549	// else if (!old_container->env && contr && contr->ns)
		2550	// contr->ns->floorbox_reset ();
		2551	}
		2552
		2553	object *
		2554	object::force_find (const shstr name)
		2555	{
		2556	/* cycle through his inventory to look for the MARK we want to
		2557	* place
2746	*/	2558	*/
2747	for (link = op->key_values; link != NULL; link = link->next)	2559	for (object *tmp = inv; tmp; tmp = tmp->below)
2748	{	2560	if (tmp->type == FORCE && tmp->slaying == name)
2749	if (link->key == canonical_key)	2561	return splay (tmp);
2750	{	2562
2751	return link->value;
2752	}
2753	}
2754	return NULL;	2563	return 0;
2755	}	2564	}
2756		2565
2757		2566	void
2758	/*	2567	object::force_add (const shstr name, int duration)
2759	* Updates the canonical_key in op to value.
2760	*
2761	* canonical_key is a shared string (value doesn't have to be).
2762	*
2763	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2764	* keys.
2765	*
2766	* Returns TRUE on success.
2767	*/
2768	int
2769	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2770	{	2568	{
2771	key_value *	2569	if (object *force = force_find (name))
2772	field = NULL, *last = NULL;	2570	force->destroy ();
2773		2571
2774	for (field = op->key_values; field != NULL; field = field->next)	2572	object *force = get_archetype (FORCE_NAME);
2775	{
2776	if (field->key != canonical_key)
2777	{
2778	last = field;
2779	continue;
2780	}
2781		2573
2782	if (value)	2574	force->slaying = name;
2783	field->value = value;	2575	force->stats.food = 1;
2784	else	2576	force->speed_left = -1.f;
2785	{
2786	/* Basically, if the archetype has this key set,
2787	* we need to store the null value so when we save
2788	* it, we save the empty value so that when we load,
2789	* we get this value back again.
2790	*/
2791	if (get_ob_key_link (&op->arch->clone, canonical_key))
2792	field->value = 0;
2793	else
2794	{
2795	if (last)
2796	last->next = field->next;
2797	else
2798	op->key_values = field->next;
2799		2577
2800	delete field;	2578	force->set_speed (duration ? 1.f / duration : 0.f);
2801	}	2579	force->flag [FLAG_IS_USED_UP] = true;
2802	}	2580	force->flag [FLAG_APPLIED] = true;
2803	return TRUE;
2804	}
2805	/* IF we get here, key doesn't exist */
2806		2581
2807	/* No field, we'll have to add it. */	2582	insert (force);
		2583	}
2808		2584
2809	if (!add_key)	2585	void
2810	{	2586	object::play_sound (faceidx sound)
2811	return FALSE;	2587	{
2812	}	2588	if (!sound)
2813	/* There isn't any good reason to store a null
2814	* value in the key/value list. If the archetype has
2815	* this key, then we should also have it, so shouldn't
2816	* be here. If user wants to store empty strings,
2817	* should pass in ""
2818	*/
2819	if (value == NULL)
2820	return TRUE;	2589	return;
2821		2590
2822	field = new key_value;	2591	if (flag [FLAG_REMOVED])
		2592	return;
2823		2593
2824	field->key = canonical_key;
2825	field->value = value;
2826	/* Usual prepend-addition. */
2827	field->next = op->key_values;
2828	op->key_values = field;
2829
2830	return TRUE;
2831	}
2832
2833	/*
2834	* Updates the key in op to value.
2835	*
2836	* If add_key is FALSE, this will only update existing keys,
2837	* and not add new ones.
2838	* In general, should be little reason FALSE is ever passed in for add_key
2839	*
2840	* Returns TRUE on success.
2841	*/
2842	int
2843	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2844	{
2845	shstr key_ (key);
2846
2847	return set_ob_key_value_s (op, key_, value, add_key);
2848	}
2849
2850	void
2851	object::deep_iterator::next ()
2852	{
2853	if (item->inv)	2594	if (env)
2854	item = item->inv;	2595	{
2855	else if (item->below)	2596	if (object *pl = in_player ())
2856	item = item->below;	2597	pl->contr->play_sound (sound);
		2598	}
2857	else	2599	else
2858	item = item->env->below;	2600	map->play_sound (sound, x, y);
2859	}	2601	}
		2602

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