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Comparing deliantra/server/common/object.C (file contents):
Revision 1.32 by root, Mon Sep 11 23:53:30 2006 UTC vs.
Revision 1.230 by root, Sun May 4 08:25:32 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 (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	weight = weight_adjust (op, weight);
		376
		377	if (!weight)
		378	return;
		379
		380	op->carrying += weight;
		381
		382	if (object *pl = op->visible_to ())
		383	if (pl != op) // player is handled lazily
		384	esrv_update_item (UPD_WEIGHT, pl, op);
		385
		386	op = op->env;
		387	}
		388	}
		389
		390	/*
244	* sum_weight() is a recursive function which calculates the weight	391	* this is a recursive function which calculates the weight
245	* an object is carrying. It goes through in figures out how much	392	* an object is carrying. It goes through op and figures out how much
246	* containers are carrying, and sums it up.	393	* containers are carrying, and sums it up.
247	*/	394	*/
248	long	395	void
249	sum_weight (object *op)	396	object::update_weight ()
250	{	397	{
251	long sum;	398	sint32 sum = 0;
252	object *inv;
253		399
254	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	400	for (object *op = inv; op; op = op->below)
255	{	401	{
256	if (inv->inv)	402	if (op->inv)
257	sum_weight (inv);	403	op->update_weight ();
258	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	404
		405	sum += op->total_weight ();
		406	}
		407
		408	sum = weight_adjust (this, sum);
		409
		410	if (sum != carrying)
259	}	411	{
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;	412	carrying = sum;
264	return sum;
265	}
266		413
267	/**	414	if (object *pl = visible_to ())
268	* Return the outermost environment object for a given object.	415	if (pl != this) // player is handled lazily
269	*/	416	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	{	417	}
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	}	418	}
349		419
350	/*	420	/*
351	* Dumps an object. Returns output in the static global errmsg array.	421	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
352	*/	422	*/
353		423	char *
354	void
355	dump_object (object *op)	424	dump_object (object *op)
356	{	425	{
357	if (op == NULL)	426	if (!op)
358	{	427	return strdup ("[NULLOBJ]");
359	strcpy (errmsg, "[NULL pointer]");
360	return;
361	}
362	errmsg[0] = '\0';
363	dump_object2 (op);
364	}
365		428
366	void	429	object_freezer freezer;
367	dump_all_objects (void)	430	op->write (freezer);
368	{	431	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	}	432	}
377		433
378	/*	434	/*
379	* get_nearest_part(multi-object, object 2) returns the part of the	435	* get_nearest_part(multi-object, object 2) returns the part of the
380	* multi-object 1 which is closest to the second object.	436	* multi-object 1 which is closest to the second object.
381	* If it's not a multi-object, it is returned.	437	* If it's not a multi-object, it is returned.
382	*/	438	*/
383
384	object *	439	object *
385	get_nearest_part (object *op, const object *pl)	440	get_nearest_part (object *op, const object *pl)
386	{	441	{
387	object *tmp, *closest;	442	object *tmp, *closest;
388	int last_dist, i;	443	int last_dist, i;
389		444
390	if (op->more == NULL)	445	if (!op->more)
391	return op;	446	return op;
		447
392	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	448	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		449	tmp;
		450	tmp = tmp->more)
393	if ((i = distance (tmp, pl)) < last_dist)	451	if ((i = distance (tmp, pl)) < last_dist)
394	closest = tmp, last_dist = i;	452	closest = tmp, last_dist = i;
		453
395	return closest;	454	return closest;
396	}	455	}
397		456
398	/*	457	/*
399	* Returns the object which has the count-variable equal to the argument.	458	* Returns the object which has the count-variable equal to the argument.
		459	* VERRRY slow.
400	*/	460	*/
401
402	object *	461	object *
403	find_object (tag_t i)	462	find_object (tag_t i)
404	{	463	{
405	object *op;	464	for_all_objects (op)
406
407	for (op = objects; op != NULL; op = op->next)
408	if (op->count == i)	465	if (op->count == i)
409	break;
410	return op;	466	return op;
		467
		468	return 0;
411	}	469	}
412		470
413	/*	471	/*
414	* Returns the first object which has a name equal to the argument.	472	* Returns the first object which has a name equal to the argument.
415	* Used only by the patch command, but not all that useful.	473	* Used only by the patch command, but not all that useful.
416	* Enables features like "patch <name-of-other-player> food 999"	474	* Enables features like "patch <name-of-other-player> food 999"
417	*/	475	*/
418
419	object *	476	object *
420	find_object_name (const char *str)	477	find_object_name (const char *str)
421	{	478	{
422	const char *name = shstr::find (str);	479	shstr_cmp str_ (str);
423	object *op;	480	object *op;
424		481
425	for (op = objects; op != NULL; op = op->next)	482	for_all_objects (op)
426	if (&op->name == name)	483	if (op->name == str_)
427	break;	484	break;
428		485
429	return op;	486	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	}	487	}
458		488
459	/*	489	/*
460	* Sets the owner and sets the skill and exp pointers to owner's current	490	* Sets the owner and sets the skill and exp pointers to owner's current
461	* skill and experience objects.	491	* skill and experience objects.
		492	* ACTUALLY NO! investigate! TODO
462	*/	493	*/
463	void	494	void
464	object::set_owner (object *owner)	495	object::set_owner (object *owner)
465	{	496	{
		497	// allow objects which own objects
466	if (!owner)	498	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)	499	while (owner->owner)
477	owner = owner->owner;	500	owner = owner->owner;
		501
		502	if (flag [FLAG_FREED])
		503	{
		504	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		505	return;
		506	}
478		507
479	this->owner = owner;	508	this->owner = owner;
		509	}
		510
		511	int
		512	object::slottype () const
		513	{
		514	if (type == SKILL)
		515	{
		516	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		517	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		518	}
		519	else
		520	{
		521	if (slot [body_combat].info) return slot_combat;
		522	if (slot [body_range ].info) return slot_ranged;
		523	}
		524
		525	return slot_none;
		526	}
		527
		528	bool
		529	object::change_weapon (object *ob)
		530	{
		531	if (current_weapon == ob)
		532	return true;
		533
		534	if (chosen_skill)
		535	chosen_skill->flag [FLAG_APPLIED] = false;
		536
		537	current_weapon = ob;
		538	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		539
		540	if (chosen_skill)
		541	chosen_skill->flag [FLAG_APPLIED] = true;
		542
		543	update_stats ();
		544
		545	if (ob)
		546	{
		547	// now check wether any body locations became invalid, in which case
		548	// we cannot apply the weapon at the moment.
		549	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		550	if (slot[i].used < 0)
		551	{
		552	current_weapon = chosen_skill = 0;
		553	update_stats ();
		554
		555	new_draw_info_format (NDI_UNIQUE, 0, this,
		556	"You try to balance all your items at once, "
		557	"but the %s is just too much for your body. "
		558	"[You need to unapply some items first.]", &ob->name);
		559	return false;
		560	}
		561
		562	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		563	}
		564	else
		565	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		566
		567	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		568	{
		569	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		570	&name, ob->debug_desc ());
		571	return false;
		572	}
		573
		574	return true;
480	}	575	}
481		576
482	/* Zero the key_values on op, decrementing the shared-string	577	/* Zero the key_values on op, decrementing the shared-string
483	* refcounts and freeing the links.	578	* refcounts and freeing the links.
484	*/	579	*/
485	static void	580	static void
486	free_key_values (object *op)	581	free_key_values (object *op)
487	{	582	{
488	for (key_value *i = op->key_values; i != 0;)	583	for (key_value *i = op->key_values; i; )
489	{	584	{
490	key_value *next = i->next;	585	key_value *next = i->next;
491	delete i;	586	delete i;
492		587
493	i = next;	588	i = next;
494	}	589	}
495		590
496	op->key_values = 0;	591	op->key_values = 0;
497	}	592	}
498		593
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	/*	594	/*
552	* copy object first frees everything allocated by the second object,	595	* copy_to first frees everything allocated by the dst object,
553	* and then copies the contends of the first object into the second	596	* and then copies the contents of itself into the second
554	* object, allocating what needs to be allocated. Basically, any	597	* object, allocating what needs to be allocated. Basically, any
555	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	598	* 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	599	* if the first object is freed, the pointers in the new object
557	* will point at garbage.	600	* will point at garbage.
558	*/	601	*/
559	void	602	void
560	copy_object (object *op2, object *op)	603	object::copy_to (object *dst)
561	{	604	{
562	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	605	dst->remove ();
563	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	606	*(object_copy *)dst = *this;
564		607	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		608
575	/* Copy over key_values, if any. */	609	/* Copy over key_values, if any. */
576	if (op2->key_values)	610	if (key_values)
577	{	611	{
578	key_value *tail = 0;	612	key_value *tail = 0;
579	key_value *i;
580
581	op->key_values = 0;	613	dst->key_values = 0;
582		614
583	for (i = op2->key_values; i; i = i->next)	615	for (key_value *i = key_values; i; i = i->next)
584	{	616	{
585	key_value *new_link = new key_value;	617	key_value *new_link = new key_value;
586		618
587	new_link->next = 0;	619	new_link->next = 0;
588	new_link->key = i->key;	620	new_link->key = i->key;
589	new_link->value = i->value;	621	new_link->value = i->value;
590		622
591	/* Try and be clever here, too. */	623	/* Try and be clever here, too. */
592	if (!op->key_values)	624	if (!dst->key_values)
593	{	625	{
594	op->key_values = new_link;	626	dst->key_values = new_link;
595	tail = new_link;	627	tail = new_link;
596	}	628	}
597	else	629	else
598	{	630	{
599	tail->next = new_link;	631	tail->next = new_link;
600	tail = new_link;	632	tail = new_link;
601	}	633	}
602	}	634	}
603	}	635	}
604		636
605	update_ob_speed (op);	637	if (speed < 0)
		638	dst->speed_left -= rndm ();
		639
		640	dst->set_speed (dst->speed);
		641	}
		642
		643	void
		644	object::instantiate ()
		645	{
		646	if (!uuid.seq) // HACK
		647	uuid = UUID::gen ();
		648
		649	speed_left = -0.1f;
		650	/* copy the body_info to the body_used - this is only really
		651	* need for monsters, but doesn't hurt to do it for everything.
		652	* by doing so, when a monster is created, it has good starting
		653	* values for the body_used info, so when items are created
		654	* for it, they can be properly equipped.
		655	*/
		656	for (int i = NUM_BODY_LOCATIONS; i--; )
		657	slot[i].used = slot[i].info;
		658
		659	attachable::instantiate ();
		660	}
		661
		662	object *
		663	object::clone ()
		664	{
		665	object *neu = create ();
		666	copy_to (neu);
		667	neu->map = map; // not copied by copy_to
		668	return neu;
606	}	669	}
607		670
608	/*	671	/*
609	* If an object with the IS_TURNABLE() flag needs to be turned due	672	* 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	673	* 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.	674	* be called to update the face variable, _and_ how it looks on the map.
612	*/	675	*/
613
614	void	676	void
615	update_turn_face (object *op)	677	update_turn_face (object *op)
616	{	678	{
617	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	679	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
618	return;	680	return;
		681
619	SET_ANIMATION (op, op->direction);	682	SET_ANIMATION (op, op->direction);
620	update_object (op, UP_OBJ_FACE);	683	update_object (op, UP_OBJ_FACE);
621	}	684	}
622		685
623	/*	686	/*
624	* Updates the speed of an object. If the speed changes from 0 to another	687	* 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.	688	* 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.	689	* This function needs to be called whenever the speed of an object changes.
627	*/	690	*/
628	void	691	void
629	update_ob_speed (object *op)	692	object::set_speed (float speed)
630	{	693	{
631	extern int arch_init;	694	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	{	695	{
639	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	696	LOG (llevError, "Object %s is freed but has speed.\n", &name);
640	#ifdef MANY_CORES
641	abort ();
642	#else
643	op->speed = 0;	697	speed = 0;
644	#endif
645	}
646
647	if (arch_init)
648	return;
649
650	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
651	{	698	}
652	/* If already on active list, don't do anything */
653	if (op->active_next || op->active_prev || op == active_objects)
654	return;
655		699
656	/* process_events() expects us to insert the object at the beginning	700	this->speed = speed;
657	* of the list. */
658	op->active_next = active_objects;
659		701
660	if (op->active_next != NULL)	702	if (has_active_speed ())
661	op->active_next->active_prev = op;	703	activate ();
662
663	active_objects = op;
664	}
665	else	704	else
666	{	705	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	}	706	}
690		707
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	/*	708	/*
723	* update_object() updates the array which represents the map.	709	* update_object() updates the the map.
724	* It takes into account invisible objects (and represent squares covered	710	* It takes into account invisible objects (and represent squares covered
725	* by invisible objects by whatever is below them (unless it's another	711	* by invisible objects by whatever is below them (unless it's another
726	* invisible object, etc...)	712	* invisible object, etc...)
727	* If the object being updated is beneath a player, the look-window	713	* 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	714	* of that player is updated (this might be a suboptimal way of
729	* updating that window, though, since update_object() is called _often_)	715	* updating that window, though, since update_object() is called _often_)
730	*	716	*
731	* action is a hint of what the caller believes need to be done.	717	* 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:	718	* current action are:
737	* UP_OBJ_INSERT: op was inserted	719	* UP_OBJ_INSERT: op was inserted
738	* UP_OBJ_REMOVE: op was removed	720	* UP_OBJ_REMOVE: op was removed
739	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	721	* 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.	722	* as that is easier than trying to look at what may have changed.
741	* UP_OBJ_FACE: only the objects face has changed.	723	* UP_OBJ_FACE: only the objects face has changed.
742	*/	724	*/
743
744	void	725	void
745	update_object (object *op, int action)	726	update_object (object *op, int action)
746	{	727	{
747	int update_now = 0, flags;	728	if (!op)
748	MoveType move_on, move_off, move_block, move_slow;
749
750	if (op == NULL)
751	{	729	{
752	/* this should never happen */	730	/* this should never happen */
753	LOG (llevDebug, "update_object() called for NULL object.\n");	731	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
754	return;	732	return;
755	}	733	}
756		734
757	if (op->env != NULL)	735	if (!op->is_on_map ())
758	{	736	{
759	/* Animation is currently handled by client, so nothing	737	/* Animation is currently handled by client, so nothing
760	* to do in this case.	738	* to do in this case.
761	*/	739	*/
762	return;	740	return;
763	}	741	}
764		742
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 */	743	/* 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))	744	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
773	{	745	{
774	LOG (llevError, "update_object() called for object out of map!\n");	746	LOG (llevError, "update_object() called for object out of map!\n");
775	#ifdef MANY_CORES	747	#ifdef MANY_CORES
776	abort ();	748	abort ();
777	#endif	749	#endif
778	return;	750	return;
779	}	751	}
780		752
781	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	753	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		754
		755	if (!(m.flags_ & P_UPTODATE))
		756	/* nop */;
788	if (action == UP_OBJ_INSERT)	757	else if (action == UP_OBJ_INSERT)
789	{	758	{
		759	// this is likely overkill, TODO: revisit (schmorp)
790	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	760	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))	761	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
794	update_now = 1;	762	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
795		763	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		764	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
796	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	765	|| (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)	766	|| (m.move_on | op->move_on ) != m.move_on
806	update_now = 1;
807
808	if ((move_off | op->move_off) != move_off)	767	|| (m.move_off | op->move_off ) != m.move_off
809	update_now = 1;	768	|| (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	769	/* This isn't perfect, but I don't expect a lot of objects to
812	* to have move_allow right now.	770	* to have move_allow right now.
813	*/	771	*/
814	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	772	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
815	update_now = 1;	773	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
816		774	m.flags_ = 0;
817	if ((move_slow | op->move_slow) != move_slow)
818	update_now = 1;
819	}	775	}
820	/* if the object is being removed, we can't make intelligent	776	/* if the object is being removed, we can't make intelligent
821	* decisions, because remove_ob can't really pass the object	777	* decisions, because remove_ob can't really pass the object
822	* that is being removed.	778	* that is being removed.
823	*/	779	*/
824	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	780	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
825	update_now = 1;	781	m.flags_ = 0;
826	else if (action == UP_OBJ_FACE)	782	else if (action == UP_OBJ_FACE)
827	/* Nothing to do for that case */ ;	783	/* Nothing to do for that case */ ;
828	else	784	else
829	LOG (llevError, "update_object called with invalid action: %d\n", action);	785	LOG (llevError, "update_object called with invalid action: %d\n", action);
830		786
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)	787	if (op->more)
838	update_object (op->more, action);	788	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	}	789	}
859		790
860	object::object ()	791	object::object ()
861	{	792	{
862	SET_FLAG (this, FLAG_REMOVED);	793	SET_FLAG (this, FLAG_REMOVED);
863		794
864	expmul = 1.0;	795	expmul = 1.0;
865	face = blank_face;	796	face = blank_face;
866	attacked_by_count = -1;
867	}	797	}
868		798
869	object::~object ()	799	object::~object ()
870	{	800	{
		801	unlink ();
		802
871	free_key_values (this);	803	free_key_values (this);
872	}	804	}
873		805
		806	static int object_count;
		807
874	void object::link ()	808	void object::link ()
875	{	809	{
		810	assert (!index);//D
		811	uuid = UUID::gen ();
876	count = ++ob_count;	812	count = ++object_count;
877		813
878	prev = 0;	814	refcnt_inc ();
879	next = objects;	815	objects.insert (this);
880
881	if (objects)
882	objects->prev = this;
883
884	objects = this;
885	}	816	}
886		817
887	void object::unlink ()	818	void object::unlink ()
888	{	819	{
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)	820	if (!index)
899	{	821	return;
900	next->prev = prev;	822
901	next = 0;	823	objects.erase (this);
		824	refcnt_dec ();
		825	}
		826
		827	void
		828	object::activate ()
		829	{
		830	/* If already on active list, don't do anything */
		831	if (active)
		832	return;
		833
		834	if (has_active_speed ())
		835	actives.insert (this);
		836	}
		837
		838	void
		839	object::activate_recursive ()
		840	{
		841	activate ();
		842
		843	for (object *op = inv; op; op = op->below)
		844	op->activate_recursive ();
		845	}
		846
		847	/* This function removes object 'op' from the list of active
		848	* objects.
		849	* This should only be used for style maps or other such
		850	* reference maps where you don't want an object that isn't
		851	* in play chewing up cpu time getting processed.
		852	* The reverse of this is to call update_ob_speed, which
		853	* will do the right thing based on the speed of the object.
		854	*/
		855	void
		856	object::deactivate ()
		857	{
		858	/* If not on the active list, nothing needs to be done */
		859	if (!active)
		860	return;
		861
		862	actives.erase (this);
		863	}
		864
		865	void
		866	object::deactivate_recursive ()
		867	{
		868	for (object *op = inv; op; op = op->below)
		869	op->deactivate_recursive ();
		870
		871	deactivate ();
		872	}
		873
		874	void
		875	object::set_flag_inv (int flag, int value)
		876	{
		877	for (object *op = inv; op; op = op->below)
902	}	878	{
		879	op->flag [flag] = value;
		880	op->set_flag_inv (flag, value);
		881	}
		882	}
903		883
904	if (this == objects)	884	/*
905	objects = next;	885	* Remove and free all objects in the inventory of the given object.
		886	* object.c ?
		887	*/
		888	void
		889	object::destroy_inv (bool drop_to_ground)
		890	{
		891	// need to check first, because the checks below might segfault
		892	// as we might be on an invalid mapspace and crossfire code
		893	// is too buggy to ensure that the inventory is empty.
		894	// corollary: if you create arrows etc. with stuff in its inventory,
		895	// cf will crash below with off-map x and y
		896	if (!inv)
		897	return;
		898
		899	/* Only if the space blocks everything do we not process -
		900	* if some form of movement is allowed, let objects
		901	* drop on that space.
		902	*/
		903	if (!drop_to_ground
		904	|| !map
		905	|| map->in_memory != MAP_ACTIVE
		906	|| map->nodrop
		907	|| ms ().move_block == MOVE_ALL)
		908	{
		909	while (inv)
		910	{
		911	inv->destroy_inv (false);
		912	inv->destroy ();
		913	}
		914	}
		915	else
		916	{ /* Put objects in inventory onto this space */
		917	while (inv)
		918	{
		919	object *op = inv;
		920
		921	if (op->flag [FLAG_STARTEQUIP]
		922	|| op->flag [FLAG_NO_DROP]
		923	|| op->type == RUNE
		924	|| op->type == TRAP
		925	|| op->flag [FLAG_IS_A_TEMPLATE]
		926	|| op->flag [FLAG_DESTROY_ON_DEATH])
		927	op->destroy (true);
		928	else
		929	map->insert (op, x, y);
		930	}
		931	}
906	}	932	}
907		933
908	object *object::create ()	934	object *object::create ()
909	{	935	{
910	object *op;
911
912	if (freed.empty ())
913	op = new object;	936	object *op = new object;
914	else
915	{
916	// highly annoying, but the only way to get it stable right now
917	op = freed.back ();
918	freed.pop_back ();
919	op->~object ();
920	new ((void *) op) object;
921	}
922
923	op->link ();	937	op->link ();
924	return op;	938	return op;
925	}	939	}
926		940
927	/*	941	static struct freed_map : maptile
928	* free_object() frees everything allocated by an object, removes
929	* it from the list of used objects, and puts it on the list of
930	* free objects. The IS_FREED() flag is set in the object.
931	* The object must have been removed by remove_ob() first for
932	* this function to succeed.
933	*
934	* If free_inventory is set, free inventory as well. Else drop items in
935	* inventory to the ground.
936	*/
937	void object::free (bool free_inventory)
938	{	942	{
939	if (QUERY_FLAG (this, FLAG_FREED))	943	freed_map ()
		944	{
		945	path = "<freed objects map>";
		946	name = "/internal/freed_objects_map";
		947	width = 3;
		948	height = 3;
		949	nodrop = 1;
		950
		951	alloc ();
		952	in_memory = MAP_ACTIVE;
		953	}
		954
		955	~freed_map ()
		956	{
		957	destroy ();
		958	}
		959	} freed_map; // freed objects are moved here to avoid crashes
		960
		961	void
		962	object::do_destroy ()
		963	{
		964	if (flag [FLAG_IS_LINKED])
		965	remove_button_link (this);
		966
		967	if (flag [FLAG_FRIENDLY])
		968	remove_friendly_object (this);
		969
		970	remove ();
		971
		972	attachable::do_destroy ();
		973
		974	deactivate ();
		975	unlink ();
		976
		977	flag [FLAG_FREED] = 1;
		978
		979	// hack to ensure that freed objects still have a valid map
		980	map = &freed_map;
		981	x = 1;
		982	y = 1;
		983
		984	if (more)
		985	{
		986	more->destroy ();
		987	more = 0;
		988	}
		989
		990	head = 0;
		991
		992	// clear those pointers that likely might cause circular references
		993	owner = 0;
		994	enemy = 0;
		995	attacked_by = 0;
		996	current_weapon = 0;
		997	}
		998
		999	void
		1000	object::destroy (bool destroy_inventory)
		1001	{
		1002	if (destroyed ())
940	return;	1003	return;
941		1004
942	if (QUERY_FLAG (this, FLAG_FRIENDLY))	1005	if (!is_head () && !head->destroyed ())
943	remove_friendly_object (this);
944
945	if (!QUERY_FLAG (this, FLAG_REMOVED))
946	remove_ob (this);
947
948	SET_FLAG (this, FLAG_FREED);
949
950	if (more)
951	{
952	more->free (free_inventory);
953	more = 0;
954	}	1006	{
955		1007	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
956	if (inv)	1008	head->destroy (destroy_inventory);
		1009	return;
957	{	1010	}
958	/* Only if the space blocks everything do we not process -
959	* if some form of movement is allowed, let objects
960	* drop on that space.
961	*/
962	if (free_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
963	{
964	object *op = inv;
965		1011
966	while (op)	1012	destroy_inv (!destroy_inventory);
967	{
968	object *tmp = op->below;
969	op->free (free_inventory);
970	op = tmp;
971	}
972	}
973	else
974	{ /* Put objects in inventory onto this space */
975	object *op = inv;
976		1013
977	while (op)	1014	if (is_head ())
978	{	1015	if (sound_destroy)
979	object *tmp = op->below;	1016	play_sound (sound_destroy);
		1017	else if (flag [FLAG_MONSTER])
		1018	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
980		1019
981	remove_ob (op);	1020	attachable::destroy ();
982
983	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
984	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
985	free_object (op);
986	else
987	{
988	op->x = x;
989	op->y = y;
990	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
991	}
992
993	op = tmp;
994	}
995	}
996	}
997
998	owner = 0;
999
1000	/* Remove object from the active list */
1001	speed = 0;
1002	update_ob_speed (this);
1003
1004	unlink ();
1005
1006	mortals.push_back (this);
1007	}	1021	}
1008		1022
1009	/*	1023	/* op->remove ():
1010	* sub_weight() recursively (outwards) subtracts a number from the
1011	* weight of an object (and what is carried by it's environment(s)).
1012	*/
1013
1014	void
1015	sub_weight (object *op, signed long weight)
1016	{
1017	while (op != NULL)
1018	{
1019	if (op->type == CONTAINER)
1020	{
1021	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1022	}
1023	op->carrying -= weight;
1024	op = op->env;
1025	}
1026	}
1027
1028	/* remove_ob(op):
1029	* This function removes the object op from the linked list of objects	1024	* This function removes the object op from the linked list of objects
1030	* which it is currently tied to. When this function is done, the	1025	* which it is currently tied to. When this function is done, the
1031	* object will have no environment. If the object previously had an	1026	* object will have no environment. If the object previously had an
1032	* environment, the x and y coordinates will be updated to	1027	* environment, the x and y coordinates will be updated to
1033	* the previous environment.	1028	* the previous environment.
1034	* Beware: This function is called from the editor as well!
1035	*/	1029	*/
1036
1037	void	1030	void
1038	remove_ob (object *op)	1031	object::do_remove ()
1039	{	1032	{
		1033	object *tmp, *last = 0;
1040	object *	1034	object *otmp;
1041	tmp, *
1042	last = NULL;
1043	object *
1044	otmp;
1045		1035
1046	tag_t	1036	if (flag [FLAG_REMOVED])
1047	tag;
1048	int
1049	check_walk_off;
1050	mapstruct *
1051	m;
1052
1053	sint16
1054	x,
1055	y;
1056
1057	if (QUERY_FLAG (op, FLAG_REMOVED))
1058	return;	1037	return;
1059		1038
1060	SET_FLAG (op, FLAG_REMOVED);	1039	INVOKE_OBJECT (REMOVE, this);
1061		1040
1062	if (op->more != NULL)	1041	flag [FLAG_REMOVED] = true;
1063	remove_ob (op->more);	1042
		1043	if (more)
		1044	more->remove ();
1064		1045
1065	/*	1046	/*
1066	* In this case, the object to be removed is in someones	1047	* In this case, the object to be removed is in someones
1067	* inventory.	1048	* inventory.
1068	*/	1049	*/
1069	if (op->env != NULL)	1050	if (env)
1070	{	1051	{
1071	if (op->nrof)	1052	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1072	sub_weight (op->env, op->weight * op->nrof);	1053	if (object *pl = visible_to ())
1073	else	1054	esrv_del_item (pl->contr, count);
1074	sub_weight (op->env, op->weight + op->carrying);	1055	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1056
		1057	adjust_weight (env, -total_weight ());
		1058
		1059	*(above ? &above->below : &env->inv) = below;
		1060
		1061	if (below)
		1062	below->above = above;
		1063
		1064	/* we set up values so that it could be inserted into
		1065	* the map, but we don't actually do that - it is up
		1066	* to the caller to decide what we want to do.
		1067	*/
		1068	map = env->map;
		1069	x = env->x;
		1070	y = env->y;
		1071	above = 0;
		1072	below = 0;
		1073	env = 0;
1075		1074
1076	/* NO_FIX_PLAYER is set when a great many changes are being	1075	/* NO_FIX_PLAYER is set when a great many changes are being
1077	* made to players inventory. If set, avoiding the call	1076	* made to players inventory. If set, avoiding the call
1078	* to save cpu time.	1077	* to save cpu time.
1079	*/	1078	*/
1080	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1079	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1081	fix_player (otmp);	1080	otmp->update_stats ();
		1081	}
		1082	else if (map)
		1083	{
		1084	map->dirty = true;
		1085	mapspace &ms = this->ms ();
1082		1086
1083	if (op->above != NULL)	1087	if (object *pl = ms.player ())
		1088	{
		1089	if (type == PLAYER) // this == pl(!)
		1090	{
		1091	// leaving a spot always closes any open container on the ground
		1092	if (container && !container->env)
		1093	// this causes spurious floorbox updates, but it ensures
		1094	// that the CLOSE event is being sent.
		1095	close_container ();
		1096
		1097	--map->players;
		1098	map->touch ();
		1099	}
		1100	else if (pl->container == this)
		1101	{
		1102	// removing a container should close it
		1103	close_container ();
		1104	}
		1105
		1106	esrv_del_item (pl->contr, count);
		1107	}
		1108
		1109	/* link the object above us */
		1110	if (above)
1084	op->above->below = op->below;	1111	above->below = below;
1085	else	1112	else
1086	op->env->inv = op->below;
1087
1088	if (op->below != NULL)
1089	op->below->above = op->above;
1090
1091	/* we set up values so that it could be inserted into
1092	* the map, but we don't actually do that - it is up
1093	* to the caller to decide what we want to do.
1094	*/
1095	op->x = op->env->x, op->y = op->env->y;
1096	op->map = op->env->map;
1097	op->above = NULL, op->below = NULL;
1098	op->env = NULL;
1099	}
1100	else if (op->map)
1101	{
1102	x = op->x;
1103	y = op->y;
1104	m = get_map_from_coord (op->map, &x, &y);
1105
1106	if (!m)
1107	{
1108	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1109	op->map->path, op->x, op->y);
1110	/* in old days, we used to set x and y to 0 and continue.
1111	* it seems if we get into this case, something is probablye
1112	* screwed up and should be fixed.
1113	*/
1114	abort ();
1115	}
1116
1117	if (op->map != m)
1118	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1119	op->map->path, m->path, op->x, op->y, x, y);
1120
1121	/* Re did the following section of code - it looks like it had
1122	* lots of logic for things we no longer care about
1123	*/
1124
1125	/* link the object above us */
1126	if (op->above)
1127	op->above->below = op->below;
1128	else
1129	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */	1113	ms.top = below; /* we were top, set new top */
1130		1114
1131	/* Relink the object below us, if there is one */	1115	/* Relink the object below us, if there is one */
1132	if (op->below)	1116	if (below)
1133	op->below->above = op->above;	1117	below->above = above;
1134	else	1118	else
1135	{	1119	{
1136	/* Nothing below, which means we need to relink map object for this space	1120	/* Nothing below, which means we need to relink map object for this space
1137	* use translated coordinates in case some oddness with map tiling is	1121	* use translated coordinates in case some oddness with map tiling is
1138	* evident	1122	* evident
1139	*/	1123	*/
1140	if (GET_MAP_OB (m, x, y) != op)	1124	if (GET_MAP_OB (map, x, y) != this)
1141	{
1142	dump_object (op);
1143	LOG (llevError,
1144	"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);	1125	LOG (llevError, "remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom? %s\n", debug_desc ());
1145	dump_object (GET_MAP_OB (m, x, y));
1146	LOG (llevError, "%s\n", errmsg);
1147	}
1148		1126
1149	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */	1127	ms.bot = above; /* goes on above it. */
1150	}	1128	}
1151		1129
1152	op->above = 0;	1130	above = 0;
1153	op->below = 0;	1131	below = 0;
1154		1132
1155	if (op->map->in_memory == MAP_SAVING)	1133	if (map->in_memory == MAP_SAVING)
1156	return;	1134	return;
1157		1135
1158	tag = op->count;	1136	int check_walk_off = !flag [FLAG_NO_APPLY];
1159	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1160		1137
1161	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1138	if (object *pl = ms.player ())
		1139	{
		1140	if (pl->container == this)
		1141	/* If a container that the player is currently using somehow gets
		1142	* removed (most likely destroyed), update the player view
		1143	* appropriately.
		1144	*/
		1145	pl->close_container ();
		1146
		1147	//TODO: the floorbox prev/next might need updating
		1148	//esrv_del_item (pl->contr, count);
		1149	//TODO: update floorbox to preserve ordering
		1150	if (pl->contr->ns)
		1151	pl->contr->ns->floorbox_update ();
		1152	}
		1153
		1154	for (tmp = ms.bot; tmp; tmp = tmp->above)
1162	{	1155	{
1163	/* No point updating the players look faces if he is the object	1156	/* No point updating the players look faces if he is the object
1164	* being removed.	1157	* being removed.
1165	*/	1158	*/
1166		1159
1167	if (tmp->type == PLAYER && tmp != op)	1160	/* See if object moving off should effect something */
		1161	if (check_walk_off
		1162	&& ((move_type & tmp->move_off)
		1163	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1168	{	1164	{
1169	/* If a container that the player is currently using somehow gets	1165	move_apply (tmp, this, 0);
1170	* removed (most likely destroyed), update the player view
1171	* appropriately.
1172	*/
1173	if (tmp->container == op)
1174	{
1175	CLEAR_FLAG (op, FLAG_APPLIED);
1176	tmp->container = NULL;
1177	}
1178		1166
1179	tmp->contr->socket.update_look = 1;	1167	if (destroyed ())
		1168	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1180	}	1169	}
1181
1182	/* See if player moving off should effect something */
1183	if (check_walk_off && ((op->move_type & tmp->move_off) && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1184	{
1185	move_apply (tmp, op, NULL);
1186
1187	if (was_destroyed (op, tag))
1188	{
1189	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name);
1190	}
1191	}
1192
1193	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1194
1195	if (tmp->above == tmp)
1196	tmp->above = NULL;
1197		1170
1198	last = tmp;	1171	last = tmp;
1199	}	1172	}
1200		1173
1201	/* last == NULL of there are no objects on this space */	1174	/* last == NULL if there are no objects on this space */
		1175	//TODO: this makes little sense, why only update the topmost object?
1202	if (last == NULL)	1176	if (!last)
1203	{	1177	map->at (x, y).flags_ = 0;
1204	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1205	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1206	* those out anyways, and if there are any flags set right now, they won't
1207	* be correct anyways.
1208	*/
1209	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1210	update_position (op->map, op->x, op->y);
1211	}
1212	else	1178	else
1213	update_object (last, UP_OBJ_REMOVE);	1179	update_object (last, UP_OBJ_REMOVE);
1214		1180
1215	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))	1181	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1216	update_all_los (op->map, op->x, op->y);	1182	update_all_los (map, x, y);
1217	}	1183	}
1218	}	1184	}
1219		1185
1220	/*	1186	/*
1221	* merge_ob(op,top):	1187	* merge_ob(op,top):
…		…
1223	* This function goes through all objects below and including top, and	1189	* This function goes through all objects below and including top, and
1224	* merges op to the first matching object.	1190	* merges op to the first matching object.
1225	* If top is NULL, it is calculated.	1191	* If top is NULL, it is calculated.
1226	* Returns pointer to object if it succeded in the merge, otherwise NULL	1192	* Returns pointer to object if it succeded in the merge, otherwise NULL
1227	*/	1193	*/
1228
1229	object *	1194	object *
1230	merge_ob (object *op, object *top)	1195	merge_ob (object *op, object *top)
1231	{	1196	{
1232	if (!op->nrof)	1197	if (!op->nrof)
1233	return 0;	1198	return 0;
1234		1199
1235	if (top == NULL)	1200	if (!top)
1236	for (top = op; top != NULL && top->above != NULL; top = top->above);	1201	for (top = op; top && top->above; top = top->above)
		1202	;
1237		1203
1238	for (; top != NULL; top = top->below)	1204	for (; top; top = top->below)
1239	{	1205	if (object::can_merge (op, top))
1240	if (top == op)
1241	continue;
1242	if (CAN_MERGE (op, top))
1243	{	1206	{
1244	top->nrof += op->nrof;	1207	top->nrof += op->nrof;
1245		1208
1246	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1209	if (object *pl = top->visible_to ())
1247	op->weight = 0; /* Don't want any adjustements now */	1210	esrv_update_item (UPD_NROF, pl, top);
1248	remove_ob (op);	1211
1249	free_object (op);	1212	op->weight = 0; // cancel the addition above
		1213	op->carrying = 0; // must be 0 already
		1214
		1215	op->destroy (1);
		1216
1250	return top;	1217	return top;
1251	}	1218	}
1252	}
1253		1219
1254	return NULL;	1220	return 0;
1255	}	1221	}
1256		1222
		1223	void
		1224	object::expand_tail ()
		1225	{
		1226	if (more)
		1227	return;
		1228
		1229	object *prev = this;
		1230
		1231	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1232	{
		1233	object *op = arch_to_object (at);
		1234
		1235	op->name = name;
		1236	op->name_pl = name_pl;
		1237	op->title = title;
		1238
		1239	op->head = this;
		1240	prev->more = op;
		1241
		1242	prev = op;
		1243	}
		1244	}
		1245
1257	/*	1246	/*
1258	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1247	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1259	* job preparing multi-part monsters	1248	* job preparing multi-part monsters.
1260	*/	1249	*/
1261	object *	1250	object *
1262	insert_ob_in_map_at (object *op, mapstruct *m, object *originator, int flag, int x, int y)	1251	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1263	{	1252	{
1264	object *tmp;
1265
1266	if (op->head)
1267	op = op->head;
1268
1269	for (tmp = op; tmp; tmp = tmp->more)	1253	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1270	{	1254	{
1271	tmp->x = x + tmp->arch->clone.x;	1255	tmp->x = x + tmp->arch->x;
1272	tmp->y = y + tmp->arch->clone.y;	1256	tmp->y = y + tmp->arch->y;
1273	}	1257	}
1274		1258
1275	return insert_ob_in_map (op, m, originator, flag);	1259	return insert_ob_in_map (op, m, originator, flag);
1276	}	1260	}
1277		1261
…		…
1293	* Return value:	1277	* Return value:
1294	* new object if 'op' was merged with other object	1278	* new object if 'op' was merged with other object
1295	* NULL if 'op' was destroyed	1279	* NULL if 'op' was destroyed
1296	* just 'op' otherwise	1280	* just 'op' otherwise
1297	*/	1281	*/
1298
1299	object *	1282	object *
1300	insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1283	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1301	{	1284	{
1302	object *tmp, *top, *floor = NULL;	1285	assert (!op->flag [FLAG_FREED]);
1303	sint16 x, y;
1304		1286
1305	if (QUERY_FLAG (op, FLAG_FREED))	1287	op->remove ();
1306	{
1307	LOG (llevError, "Trying to insert freed object!\n");
1308	return NULL;
1309	}
1310
1311	if (m == NULL)
1312	{
1313	dump_object (op);
1314	LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg);
1315	return op;
1316	}
1317
1318	if (out_of_map (m, op->x, op->y))
1319	{
1320	dump_object (op);
1321	LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg);
1322	#ifdef MANY_CORES
1323	/* Better to catch this here, as otherwise the next use of this object
1324	* is likely to cause a crash. Better to find out where it is getting
1325	* improperly inserted.
1326	*/
1327	abort ();
1328	#endif
1329	return op;
1330	}
1331
1332	if (!QUERY_FLAG (op, FLAG_REMOVED))
1333	{
1334	dump_object (op);
1335	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg);
1336	return op;
1337	}
1338
1339	if (op->more != NULL)
1340	{
1341	/* The part may be on a different map. */
1342
1343	object *more = op->more;
1344
1345	/* We really need the caller to normalize coordinates - if
1346	* we set the map, that doesn't work if the location is within
1347	* a map and this is straddling an edge. So only if coordinate
1348	* is clear wrong do we normalize it.
1349	*/
1350	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1351	more->map = get_map_from_coord (m, &more->x, &more->y);
1352	else if (!more->map)
1353	{
1354	/* For backwards compatibility - when not dealing with tiled maps,
1355	* more->map should always point to the parent.
1356	*/
1357	more->map = m;
1358	}
1359
1360	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1361	{
1362	if (!op->head)
1363	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1364
1365	return NULL;
1366	}
1367	}
1368
1369	CLEAR_FLAG (op, FLAG_REMOVED);
1370		1288
1371	/* Ideally, the caller figures this out. However, it complicates a lot	1289	/* Ideally, the caller figures this out. However, it complicates a lot
1372	* of areas of callers (eg, anything that uses find_free_spot would now	1290	* of areas of callers (eg, anything that uses find_free_spot would now
1373	* need extra work	1291	* need extra work
1374	*/	1292	*/
1375	op->map = get_map_from_coord (m, &op->x, &op->y);	1293	if (!xy_normalise (m, op->x, op->y))
1376	x = op->x;	1294	{
1377	y = op->y;	1295	op->destroy (1);
		1296	return 0;
		1297	}
		1298
		1299	if (object *more = op->more)
		1300	if (!insert_ob_in_map (more, m, originator, flag))
		1301	return 0;
		1302
		1303	CLEAR_FLAG (op, FLAG_REMOVED);
		1304
		1305	op->map = m;
		1306	mapspace &ms = op->ms ();
1378		1307
1379	/* this has to be done after we translate the coordinates.	1308	/* this has to be done after we translate the coordinates.
1380	*/	1309	*/
1381	if (op->nrof && !(flag & INS_NO_MERGE))	1310	if (op->nrof && !(flag & INS_NO_MERGE))
1382	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1311	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1383	if (CAN_MERGE (op, tmp))	1312	if (object::can_merge (op, tmp))
1384	{	1313	{
		1314	// TODO: we atcually want to update tmp, not op,
		1315	// but some caller surely breaks when we return tmp
		1316	// from here :/
1385	op->nrof += tmp->nrof;	1317	op->nrof += tmp->nrof;
1386	remove_ob (tmp);	1318	tmp->destroy (1);
1387	free_object (tmp);
1388	}	1319	}
1389		1320
1390	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1321	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1391	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1322	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1392		1323
…		…
1405	op->below = originator->below;	1336	op->below = originator->below;
1406		1337
1407	if (op->below)	1338	if (op->below)
1408	op->below->above = op;	1339	op->below->above = op;
1409	else	1340	else
1410	SET_MAP_OB (op->map, op->x, op->y, op);	1341	ms.bot = op;
1411		1342
1412	/* since *below* originator, no need to update top */	1343	/* since *below* originator, no need to update top */
1413	originator->below = op;	1344	originator->below = op;
1414	}	1345	}
1415	else	1346	else
1416	{	1347	{
		1348	object *top, *floor = NULL;
		1349
		1350	top = ms.bot;
		1351
1417	/* If there are other objects, then */	1352	/* If there are other objects, then */
1418	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1353	if (top)
1419	{	1354	{
1420	object *last = NULL;	1355	object *last = 0;
1421		1356
1422	/*	1357	/*
1423	* If there are multiple objects on this space, we do some trickier handling.	1358	* If there are multiple objects on this space, we do some trickier handling.
1424	* We've already dealt with merging if appropriate.	1359	* We've already dealt with merging if appropriate.
1425	* Generally, we want to put the new object on top. But if	1360	* Generally, we want to put the new object on top. But if
…		…
1429	* once we get to them. This reduces the need to traverse over all of	1364	* once we get to them. This reduces the need to traverse over all of
1430	* them when adding another one - this saves quite a bit of cpu time	1365	* them when adding another one - this saves quite a bit of cpu time
1431	* when lots of spells are cast in one area. Currently, it is presumed	1366	* when lots of spells are cast in one area. Currently, it is presumed
1432	* that flying non pickable objects are spell objects.	1367	* that flying non pickable objects are spell objects.
1433	*/	1368	*/
1434		1369	for (top = ms.bot; top; top = top->above)
1435	while (top != NULL)
1436	{	1370	{
1437	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1371	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1438	floor = top;	1372	floor = top;
1439		1373
1440	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1374	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
…		…
1443	top = top->below;	1377	top = top->below;
1444	break;	1378	break;
1445	}	1379	}
1446		1380
1447	last = top;	1381	last = top;
1448	top = top->above;
1449	}	1382	}
1450		1383
1451	/* Don't want top to be NULL, so set it to the last valid object */	1384	/* Don't want top to be NULL, so set it to the last valid object */
1452	top = last;	1385	top = last;
1453		1386
…		…
1455	* looks like instead of lots of conditions here.	1388	* looks like instead of lots of conditions here.
1456	* makes things faster, and effectively the same result.	1389	* makes things faster, and effectively the same result.
1457	*/	1390	*/
1458		1391
1459	/* Have object 'fall below' other objects that block view.	1392	/* Have object 'fall below' other objects that block view.
1460	* Unless those objects are exits, type 66	1393	* Unless those objects are exits.
1461	* If INS_ON_TOP is used, don't do this processing	1394	* If INS_ON_TOP is used, don't do this processing
1462	* Need to find the object that in fact blocks view, otherwise	1395	* Need to find the object that in fact blocks view, otherwise
1463	* stacking is a bit odd.	1396	* stacking is a bit odd.
1464	*/	1397	*/
1465	if (!(flag & INS_ON_TOP) &&	1398	if (!(flag & INS_ON_TOP)
1466	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1399	&& ms.flags () & P_BLOCKSVIEW
		1400	&& (op->face && !faces [op->face].visibility))
1467	{	1401	{
1468	for (last = top; last != floor; last = last->below)	1402	for (last = top; last != floor; last = last->below)
1469	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1403	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1470	break;	1404	break;
		1405
1471	/* Check to see if we found the object that blocks view,	1406	/* Check to see if we found the object that blocks view,
1472	* and make sure we have a below pointer for it so that	1407	* and make sure we have a below pointer for it so that
1473	* we can get inserted below this one, which requires we	1408	* we can get inserted below this one, which requires we
1474	* set top to the object below us.	1409	* set top to the object below us.
1475	*/	1410	*/
1476	if (last && last->below && last != floor)	1411	if (last && last->below && last != floor)
1477	top = last->below;	1412	top = last->below;
1478	}	1413	}
1479	} /* If objects on this space */	1414	} /* If objects on this space */
1480		1415
1481	if (flag & INS_MAP_LOAD)
1482	top = GET_MAP_TOP (op->map, op->x, op->y);
1483
1484	if (flag & INS_ABOVE_FLOOR_ONLY)	1416	if (flag & INS_ABOVE_FLOOR_ONLY)
1485	top = floor;	1417	top = floor;
1486		1418
1487	/* Top is the object that our object (op) is going to get inserted above.	1419	/* Top is the object that our object (op) is going to get inserted above.
1488	*/	1420	*/
1489		1421
1490	/* First object on this space */	1422	/* First object on this space */
1491	if (!top)	1423	if (!top)
1492	{	1424	{
1493	op->above = GET_MAP_OB (op->map, op->x, op->y);	1425	op->above = ms.bot;
1494		1426
1495	if (op->above)	1427	if (op->above)
1496	op->above->below = op;	1428	op->above->below = op;
1497		1429
1498	op->below = NULL;	1430	op->below = 0;
1499	SET_MAP_OB (op->map, op->x, op->y, op);	1431	ms.bot = op;
1500	}	1432	}
1501	else	1433	else
1502	{ /* get inserted into the stack above top */	1434	{ /* get inserted into the stack above top */
1503	op->above = top->above;	1435	op->above = top->above;
1504		1436
…		…
1507		1439
1508	op->below = top;	1440	op->below = top;
1509	top->above = op;	1441	top->above = op;
1510	}	1442	}
1511		1443
1512	if (op->above == NULL)	1444	if (!op->above)
1513	SET_MAP_TOP (op->map, op->x, op->y, op);	1445	ms.top = op;
1514	} /* else not INS_BELOW_ORIGINATOR */	1446	} /* else not INS_BELOW_ORIGINATOR */
1515		1447
1516	if (op->type == PLAYER)	1448	if (op->type == PLAYER)
		1449	{
1517	op->contr->do_los = 1;	1450	op->contr->do_los = 1;
		1451	++op->map->players;
		1452	op->map->touch ();
		1453	}
1518		1454
1519	/* If we have a floor, we know the player, if any, will be above	1455	op->map->dirty = true;
1520	* it, so save a few ticks and start from there.	1456
1521	*/	1457	if (object *pl = ms.player ())
1522	if (!(flag & INS_MAP_LOAD))	1458	//TODO: the floorbox prev/next might need updating
1523	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1459	//esrv_send_item (pl, op);
1524	if (tmp->type == PLAYER)	1460	//TODO: update floorbox to preserve ordering
1525	tmp->contr->socket.update_look = 1;	1461	if (pl->contr->ns)
		1462	pl->contr->ns->floorbox_update ();
1526		1463
1527	/* If this object glows, it may affect lighting conditions that are	1464	/* If this object glows, it may affect lighting conditions that are
1528	* visible to others on this map. But update_all_los is really	1465	* visible to others on this map. But update_all_los is really
1529	* an inefficient way to do this, as it means los for all players	1466	* an inefficient way to do this, as it means los for all players
1530	* on the map will get recalculated. The players could very well	1467	* on the map will get recalculated. The players could very well
1531	* be far away from this change and not affected in any way -	1468	* be far away from this change and not affected in any way -
1532	* this should get redone to only look for players within range,	1469	* this should get redone to only look for players within range,
1533	* or just updating the P_NEED_UPDATE for spaces within this area	1470	* or just updating the P_UPTODATE for spaces within this area
1534	* of effect may be sufficient.	1471	* of effect may be sufficient.
1535	*/	1472	*/
1536	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1473	if (op->map->darkness && (op->glow_radius != 0))
1537	update_all_los (op->map, op->x, op->y);	1474	update_all_los (op->map, op->x, op->y);
1538		1475
1539	/* updates flags (blocked, alive, no magic, etc) for this map space */	1476	/* updates flags (blocked, alive, no magic, etc) for this map space */
1540	update_object (op, UP_OBJ_INSERT);	1477	update_object (op, UP_OBJ_INSERT);
1541		1478
		1479	INVOKE_OBJECT (INSERT, op);
		1480
1542	/* Don't know if moving this to the end will break anything. However,	1481	/* Don't know if moving this to the end will break anything. However,
1543	* we want to have update_look set above before calling this.	1482	* we want to have floorbox_update called before calling this.
1544	*	1483	*
1545	* check_move_on() must be after this because code called from	1484	* check_move_on() must be after this because code called from
1546	* check_move_on() depends on correct map flags (so functions like	1485	* check_move_on() depends on correct map flags (so functions like
1547	* blocked() and wall() work properly), and these flags are updated by	1486	* blocked() and wall() work properly), and these flags are updated by
1548	* update_object().	1487	* update_object().
1549	*/	1488	*/
1550		1489
1551	/* if this is not the head or flag has been passed, don't check walk on status */	1490	/* if this is not the head or flag has been passed, don't check walk on status */
1552	if (!(flag & INS_NO_WALK_ON) && !op->head)	1491	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1553	{	1492	{
1554	if (check_move_on (op, originator))	1493	if (check_move_on (op, originator))
1555	return NULL;	1494	return 0;
1556		1495
1557	/* If we are a multi part object, lets work our way through the check	1496	/* If we are a multi part object, lets work our way through the check
1558	* walk on's.	1497	* walk on's.
1559	*/	1498	*/
1560	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1499	for (object *tmp = op->more; tmp; tmp = tmp->more)
1561	if (check_move_on (tmp, originator))	1500	if (check_move_on (tmp, originator))
1562	return NULL;	1501	return 0;
1563	}	1502	}
1564		1503
1565	return op;	1504	return op;
1566	}	1505	}
1567		1506
1568	/* this function inserts an object in the map, but if it	1507	/* this function inserts an object in the map, but if it
1569	* finds an object of its own type, it'll remove that one first.	1508	* finds an object of its own type, it'll remove that one first.
1570	* op is the object to insert it under: supplies x and the map.	1509	* op is the object to insert it under: supplies x and the map.
1571	*/	1510	*/
1572	void	1511	void
1573	replace_insert_ob_in_map (const char *arch_string, object *op)	1512	replace_insert_ob_in_map (const char *arch_string, object *op)
1574	{	1513	{
1575	object *
1576	tmp;
1577	object *
1578	tmp1;
1579
1580	/* first search for itself and remove any old instances */	1514	/* first search for itself and remove any old instances */
1581		1515
1582	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1516	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1583	{
1584	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1517	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1585	{	1518	tmp->destroy (1);
1586	remove_ob (tmp);
1587	free_object (tmp);
1588	}
1589	}
1590		1519
1591	tmp1 = arch_to_object (find_archetype (arch_string));	1520	object *tmp = arch_to_object (archetype::find (arch_string));
1592		1521
1593	tmp1->x = op->x;	1522	tmp->x = op->x;
1594	tmp1->y = op->y;	1523	tmp->y = op->y;
		1524
1595	insert_ob_in_map (tmp1, op->map, op, 0);	1525	insert_ob_in_map (tmp, op->map, op, 0);
1596	}	1526	}
1597
1598	/*
1599	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1600	* is returned contains nr objects, and the remaining parts contains
1601	* the rest (or is removed and freed if that number is 0).
1602	* On failure, NULL is returned, and the reason put into the
1603	* global static errmsg array.
1604	*/
1605		1527
1606	object *	1528	object *
1607	get_split_ob (object *orig_ob, uint32 nr)	1529	object::insert_at (object *where, object *originator, int flags)
1608	{	1530	{
1609	object *	1531	if (where->env)
1610	newob;	1532	return where->env->insert (this);
1611	int	1533	else
1612	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1534	return where->map->insert (this, where->x, where->y, originator, flags);
1613
1614	if (orig_ob->nrof < nr)
1615	{
1616	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1617	return NULL;
1618	}
1619
1620	newob = object_create_clone (orig_ob);
1621
1622	if ((orig_ob->nrof -= nr) < 1)
1623	{
1624	if (!is_removed)
1625	remove_ob (orig_ob);
1626	free_object2 (orig_ob, 1);
1627	}
1628	else if (!is_removed)
1629	{
1630	if (orig_ob->env != NULL)
1631	sub_weight (orig_ob->env, orig_ob->weight * nr);
1632	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1633	{
1634	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1635	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1636	return NULL;
1637	}
1638	}
1639
1640	newob->nrof = nr;
1641
1642	return newob;
1643	}	1535	}
1644		1536
1645	/*	1537	/*
1646	* decrease_ob_nr(object, number) decreases a specified number from	1538	* decrease(object, number) decreases a specified number from
1647	* the amount of an object. If the amount reaches 0, the object	1539	* the amount of an object. If the amount reaches 0, the object
1648	* is subsequently removed and freed.	1540	* is subsequently removed and freed.
1649	*	1541	*
1650	* Return value: 'op' if something is left, NULL if the amount reached 0	1542	* Return value: 'op' if something is left, NULL if the amount reached 0
1651	*/	1543	*/
		1544	bool
		1545	object::decrease (sint32 nr)
		1546	{
		1547	if (!nr)
		1548	return true;
1652		1549
		1550	nr = min (nr, nrof);
		1551
		1552	nrof -= nr;
		1553
		1554	if (nrof)
		1555	{
		1556	adjust_weight (env, -weight * nr); // carrying == 0
		1557
		1558	if (object *pl = visible_to ())
		1559	esrv_update_item (UPD_NROF, pl, this);
		1560
		1561	return true;
		1562	}
		1563	else
		1564	{
		1565	destroy (1);
		1566	return false;
		1567	}
		1568	}
		1569
		1570	/*
		1571	* split(ob,nr) splits up ob into two parts. The part which
		1572	* is returned contains nr objects, and the remaining parts contains
		1573	* the rest (or is removed and returned if that number is 0).
		1574	* On failure, NULL is returned.
		1575	*/
1653	object *	1576	object *
1654	decrease_ob_nr (object *op, uint32 i)	1577	object::split (sint32 nr)
1655	{	1578	{
1656	object *tmp;	1579	int have = number_of ();
1657	player *pl;
1658		1580
1659	if (i == 0) /* objects with op->nrof require this check */	1581	if (have < nr)
1660	return op;	1582	return 0;
1661		1583	else if (have == nr)
1662	if (i > op->nrof)
1663	i = op->nrof;
1664
1665	if (QUERY_FLAG (op, FLAG_REMOVED))
1666	op->nrof -= i;
1667	else if (op->env != NULL)
1668	{	1584	{
1669	/* is this object in the players inventory, or sub container
1670	* therein?
1671	*/
1672	tmp = is_player_inv (op->env);
1673	/* nope. Is this a container the player has opened?
1674	* If so, set tmp to that player.
1675	* IMO, searching through all the players will mostly
1676	* likely be quicker than following op->env to the map,
1677	* and then searching the map for a player.
1678	*/
1679	if (!tmp)
1680	{
1681	for (pl = first_player; pl; pl = pl->next)
1682	if (pl->ob->container == op->env)
1683	break;
1684	if (pl)
1685	tmp = pl->ob;
1686	else
1687	tmp = NULL;
1688	}
1689
1690	if (i < op->nrof)
1691	{
1692	sub_weight (op->env, op->weight * i);
1693	op->nrof -= i;
1694	if (tmp)
1695	{
1696	esrv_send_item (tmp, op);
1697	}
1698	}
1699	else
1700	{
1701	remove_ob (op);	1585	remove ();
1702	op->nrof = 0;	1586	return this;
1703	if (tmp)
1704	{
1705	esrv_del_item (tmp->contr, op->count);
1706	}
1707	}
1708	}	1587	}
1709	else	1588	else
1710	{	1589	{
1711	object *above = op->above;	1590	decrease (nr);
1712		1591
1713	if (i < op->nrof)	1592	object *op = deep_clone ();
1714	op->nrof -= i;	1593	op->nrof = nr;
1715	else
1716	{
1717	remove_ob (op);
1718	op->nrof = 0;
1719	}
1720
1721	/* Since we just removed op, op->above is null */
1722	for (tmp = above; tmp != NULL; tmp = tmp->above)
1723	if (tmp->type == PLAYER)
1724	{
1725	if (op->nrof)
1726	esrv_send_item (tmp, op);
1727	else
1728	esrv_del_item (tmp->contr, op->count);
1729	}
1730	}
1731
1732	if (op->nrof)
1733	return op;	1594	return op;
1734	else
1735	{	1595	}
1736	free_object (op);	1596	}
		1597
		1598	object *
		1599	insert_ob_in_ob (object *op, object *where)
		1600	{
		1601	if (!where)
		1602	{
		1603	char *dump = dump_object (op);
		1604	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1605	free (dump);
1737	return NULL;	1606	return op;
1738	}
1739	}
1740
1741	/*
1742	* add_weight(object, weight) adds the specified weight to an object,
1743	* and also updates how much the environment(s) is/are carrying.
1744	*/
1745
1746	void
1747	add_weight (object *op, signed long weight)
1748	{
1749	while (op != NULL)
1750	{	1607	}
1751	if (op->type == CONTAINER)
1752	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1753		1608
1754	op->carrying += weight;	1609	if (where->head_ () != where)
1755	op = op->env;
1756	}	1610	{
1757	}	1611	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1612	where = where->head;
		1613	}
1758		1614
		1615	return where->insert (op);
		1616	}
		1617
1759	/*	1618	/*
1760	* insert_ob_in_ob(op,environment):	1619	* env->insert (op)
1761	* This function inserts the object op in the linked list	1620	* This function inserts the object op in the linked list
1762	* inside the object environment.	1621	* inside the object environment.
1763	*	1622	*
1764	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1765	* the inventory at the last position or next to other objects of the same
1766	* type.
1767	* Frank: Now sorted by type, archetype and magic!
1768	*
1769	* The function returns now pointer to inserted item, and return value can	1623	* The function returns now pointer to inserted item, and return value can
1770	* be != op, if items are merged. -Tero	1624	* be != op, if items are merged. -Tero
1771	*/	1625	*/
1772
1773	object *	1626	object *
1774	insert_ob_in_ob (object *op, object *where)	1627	object::insert (object *op)
1775	{	1628	{
1776	object *
1777	tmp, *
1778	otmp;
1779
1780	if (!QUERY_FLAG (op, FLAG_REMOVED))
1781	{
1782	dump_object (op);
1783	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", errmsg);
1784	return op;
1785	}
1786
1787	if (where == NULL)
1788	{
1789	dump_object (op);
1790	LOG (llevError, "Trying to put object in NULL.\n%s\n", errmsg);
1791	return op;
1792	}
1793
1794	if (where->head)
1795	{
1796	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1797	where = where->head;
1798	}
1799
1800	if (op->more)	1629	if (op->more)
1801	{	1630	{
1802	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1631	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1803	return op;	1632	return op;
1804	}	1633	}
1805		1634
1806	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1635	op->remove ();
1807	CLEAR_FLAG (op, FLAG_REMOVED);	1636
		1637	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1638
1808	if (op->nrof)	1639	if (op->nrof)
1809	{
1810	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1640	for (object *tmp = inv; tmp; tmp = tmp->below)
1811	if (CAN_MERGE (tmp, op))	1641	if (object::can_merge (tmp, op))
1812	{	1642	{
1813	/* return the original object and remove inserted object	1643	/* return the original object and remove inserted object
1814	(client needs the original object) */	1644	(client needs the original object) */
1815	tmp->nrof += op->nrof;	1645	tmp->nrof += op->nrof;
1816	/* Weight handling gets pretty funky. Since we are adding to	1646
1817	* tmp->nrof, we need to increase the weight.	1647	if (object *pl = tmp->visible_to ())
1818	*/	1648	esrv_update_item (UPD_NROF, pl, tmp);
1819	add_weight (where, op->weight * op->nrof);	1649
1820	SET_FLAG (op, FLAG_REMOVED);	1650	adjust_weight (this, op->total_weight ());
1821	free_object (op); /* free the inserted object */	1651
		1652	op->destroy (1);
1822	op = tmp;	1653	op = tmp;
1823	remove_ob (op); /* and fix old object's links */	1654	goto inserted;
1824	CLEAR_FLAG (op, FLAG_REMOVED);
1825	break;
1826	}	1655	}
1827		1656
1828	/* I assume combined objects have no inventory	1657	op->owner = 0; // it's his/hers now. period.
1829	* We add the weight - this object could have just been removed
1830	* (if it was possible to merge). calling remove_ob will subtract
1831	* the weight, so we need to add it in again, since we actually do
1832	* the linking below
1833	*/
1834	add_weight (where, op->weight * op->nrof);
1835	}
1836	else
1837	add_weight (where, (op->weight + op->carrying));
1838
1839	otmp = is_player_inv (where);
1840	if (otmp && otmp->contr != NULL)
1841	{
1842	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1843	fix_player (otmp);
1844	}
1845
1846	op->map = NULL;	1658	op->map = 0;
1847	op->env = where;	1659	op->x = 0;
		1660	op->y = 0;
		1661
1848	op->above = NULL;	1662	op->above = 0;
1849	op->below = NULL;	1663	op->below = inv;
1850	op->x = 0, op->y = 0;	1664	op->env = this;
1851		1665
		1666	if (inv)
		1667	inv->above = op;
		1668
		1669	inv = op;
		1670
		1671	op->flag [FLAG_REMOVED] = 0;
		1672
		1673	if (object *pl = op->visible_to ())
		1674	esrv_send_item (pl, op);
		1675
		1676	adjust_weight (this, op->total_weight ());
		1677
		1678	inserted:
1852	/* reset the light list and los of the players on the map */	1679	/* reset the light list and los of the players on the map */
1853	if ((op->glow_radius != 0) && where->map)	1680	if (op->glow_radius && map && map->darkness)
1854	{	1681	update_all_los (map, x, y);
1855	#ifdef DEBUG_LIGHTS
1856	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1857	#endif /* DEBUG_LIGHTS */
1858	if (MAP_DARKNESS (where->map))
1859	update_all_los (where->map, where->x, where->y);
1860	}
1861		1682
1862	/* Client has no idea of ordering so lets not bother ordering it here.	1683	// if this is a player's inventory, update stats
1863	* It sure simplifies this function...	1684	if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1864	*/	1685	update_stats ();
1865	if (where->inv == NULL)	1686
1866	where->inv = op;	1687	INVOKE_OBJECT (INSERT, this);
1867	else	1688
1868	{
1869	op->below = where->inv;
1870	op->below->above = op;
1871	where->inv = op;
1872	}
1873	return op;	1689	return op;
1874	}	1690	}
1875		1691
1876	/*	1692	/*
1877	* Checks if any objects has a move_type that matches objects	1693	* Checks if any objects has a move_type that matches objects
…		…
1891	*	1707	*
1892	* MSW 2001-07-08: Check all objects on space, not just those below	1708	* MSW 2001-07-08: Check all objects on space, not just those below
1893	* object being inserted. insert_ob_in_map may not put new objects	1709	* object being inserted. insert_ob_in_map may not put new objects
1894	* on top.	1710	* on top.
1895	*/	1711	*/
1896
1897	int	1712	int
1898	check_move_on (object *op, object *originator)	1713	check_move_on (object *op, object *originator)
1899	{	1714	{
1900	object *	1715	object *tmp;
1901	tmp;	1716	maptile *m = op->map;
1902	tag_t
1903	tag;
1904	mapstruct *
1905	m = op->map;
1906	int
1907	x = op->x, y = op->y;	1717	int x = op->x, y = op->y;
1908		1718
1909	MoveType	1719	MoveType move_on, move_slow, move_block;
1910	move_on,
1911	move_slow,
1912	move_block;
1913		1720
1914	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1721	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1915	return 0;	1722	return 0;
1916
1917	tag = op->count;
1918		1723
1919	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1724	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1920	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1725	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1921	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1726	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1922		1727
…		…
1938		1743
1939	/* The objects have to be checked from top to bottom.	1744	/* The objects have to be checked from top to bottom.
1940	* Hence, we first go to the top:	1745	* Hence, we first go to the top:
1941	*/	1746	*/
1942		1747
1943	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1748	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1944	{	1749	{
1945	/* Trim the search when we find the first other spell effect	1750	/* Trim the search when we find the first other spell effect
1946	* this helps performance so that if a space has 50 spell objects,	1751	* this helps performance so that if a space has 50 spell objects,
1947	* we don't need to check all of them.	1752	* we don't need to check all of them.
1948	*/	1753	*/
…		…
1966	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1771	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1967	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1772	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1968	{	1773	{
1969		1774
1970	float	1775	float
1971	diff = tmp->move_slow_penalty * FABS (op->speed);	1776	diff = tmp->move_slow_penalty * fabs (op->speed);
1972		1777
1973	if (op->type == PLAYER)	1778	if (op->type == PLAYER)
1974	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1779	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1975	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1780	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1976	diff /= 4.0;	1781	diff /= 4.0;
…		…
1983	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1788	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1984	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))	1789	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1985	{	1790	{
1986	move_apply (tmp, op, originator);	1791	move_apply (tmp, op, originator);
1987		1792
1988	if (was_destroyed (op, tag))	1793	if (op->destroyed ())
1989	return 1;	1794	return 1;
1990		1795
1991	/* what the person/creature stepped onto has moved the object	1796	/* what the person/creature stepped onto has moved the object
1992	* someplace new. Don't process any further - if we did,	1797	* someplace new. Don't process any further - if we did,
1993	* have a feeling strange problems would result.	1798	* have a feeling strange problems would result.
…		…
2003	/*	1808	/*
2004	* present_arch(arch, map, x, y) searches for any objects with	1809	* present_arch(arch, map, x, y) searches for any objects with
2005	* a matching archetype at the given map and coordinates.	1810	* a matching archetype at the given map and coordinates.
2006	* The first matching object is returned, or NULL if none.	1811	* The first matching object is returned, or NULL if none.
2007	*/	1812	*/
2008
2009	object *	1813	object *
2010	present_arch (const archetype *at, mapstruct *m, int x, int y)	1814	present_arch (const archetype *at, maptile *m, int x, int y)
2011	{	1815	{
2012	object *
2013	tmp;
2014
2015	if (m == NULL || out_of_map (m, x, y))	1816	if (!m || out_of_map (m, x, y))
2016	{	1817	{
2017	LOG (llevError, "Present_arch called outside map.\n");	1818	LOG (llevError, "Present_arch called outside map.\n");
2018	return NULL;	1819	return NULL;
2019	}	1820	}
2020	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1821
		1822	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2021	if (tmp->arch == at)	1823	if (tmp->arch == at)
2022	return tmp;	1824	return tmp;
		1825
2023	return NULL;	1826	return NULL;
2024	}	1827	}
2025		1828
2026	/*	1829	/*
2027	* present(type, map, x, y) searches for any objects with	1830	* present(type, map, x, y) searches for any objects with
2028	* a matching type variable at the given map and coordinates.	1831	* a matching type variable at the given map and coordinates.
2029	* The first matching object is returned, or NULL if none.	1832	* The first matching object is returned, or NULL if none.
2030	*/	1833	*/
2031
2032	object *	1834	object *
2033	present (unsigned char type, mapstruct *m, int x, int y)	1835	present (unsigned char type, maptile *m, int x, int y)
2034	{	1836	{
2035	object *
2036	tmp;
2037
2038	if (out_of_map (m, x, y))	1837	if (out_of_map (m, x, y))
2039	{	1838	{
2040	LOG (llevError, "Present called outside map.\n");	1839	LOG (llevError, "Present called outside map.\n");
2041	return NULL;	1840	return NULL;
2042	}	1841	}
2043	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1842
		1843	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2044	if (tmp->type == type)	1844	if (tmp->type == type)
2045	return tmp;	1845	return tmp;
		1846
2046	return NULL;	1847	return NULL;
2047	}	1848	}
2048		1849
2049	/*	1850	/*
2050	* present_in_ob(type, object) searches for any objects with	1851	* present_in_ob(type, object) searches for any objects with
2051	* a matching type variable in the inventory of the given object.	1852	* a matching type variable in the inventory of the given object.
2052	* The first matching object is returned, or NULL if none.	1853	* The first matching object is returned, or NULL if none.
2053	*/	1854	*/
2054
2055	object *	1855	object *
2056	present_in_ob (unsigned char type, const object *op)	1856	present_in_ob (unsigned char type, const object *op)
2057	{	1857	{
2058	object *
2059	tmp;
2060
2061	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1858	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2062	if (tmp->type == type)	1859	if (tmp->type == type)
2063	return tmp;	1860	return tmp;
		1861
2064	return NULL;	1862	return NULL;
2065	}	1863	}
2066		1864
2067	/*	1865	/*
2068	* present_in_ob (type, str, object) searches for any objects with	1866	* present_in_ob (type, str, object) searches for any objects with
…		…
2076	* str is the string to match against. Note that we match against	1874	* str is the string to match against. Note that we match against
2077	* the object name, not the archetype name. this is so that the	1875	* the object name, not the archetype name. this is so that the
2078	* spell code can use one object type (force), but change it's name	1876	* spell code can use one object type (force), but change it's name
2079	* to be unique.	1877	* to be unique.
2080	*/	1878	*/
2081
2082	object *	1879	object *
2083	present_in_ob_by_name (int type, const char *str, const object *op)	1880	present_in_ob_by_name (int type, const char *str, const object *op)
2084	{	1881	{
2085	object *
2086	tmp;
2087
2088	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1882	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2089	{
2090	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1883	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2091	return tmp;	1884	return tmp;
2092	}	1885
2093	return NULL;	1886	return 0;
2094	}	1887	}
2095		1888
2096	/*	1889	/*
2097	* present_arch_in_ob(archetype, object) searches for any objects with	1890	* present_arch_in_ob(archetype, object) searches for any objects with
2098	* a matching archetype in the inventory of the given object.	1891	* a matching archetype in the inventory of the given object.
2099	* The first matching object is returned, or NULL if none.	1892	* The first matching object is returned, or NULL if none.
2100	*/	1893	*/
2101
2102	object *	1894	object *
2103	present_arch_in_ob (const archetype *at, const object *op)	1895	present_arch_in_ob (const archetype *at, const object *op)
2104	{	1896	{
2105	object *
2106	tmp;
2107
2108	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1897	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2109	if (tmp->arch == at)	1898	if (tmp->arch == at)
2110	return tmp;	1899	return tmp;
		1900
2111	return NULL;	1901	return NULL;
2112	}	1902	}
2113		1903
2114	/*	1904	/*
2115	* activate recursively a flag on an object inventory	1905	* activate recursively a flag on an object inventory
2116	*/	1906	*/
2117	void	1907	void
2118	flag_inv (object *op, int flag)	1908	flag_inv (object *op, int flag)
2119	{	1909	{
2120	object *
2121	tmp;
2122
2123	if (op->inv)
2124	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1910	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2125	{	1911	{
2126	SET_FLAG (tmp, flag);	1912	SET_FLAG (tmp, flag);
2127	flag_inv (tmp, flag);	1913	flag_inv (tmp, flag);
2128	}	1914	}
2129	} /*	1915	}
		1916
		1917	/*
2130	* desactivate recursively a flag on an object inventory	1918	* deactivate recursively a flag on an object inventory
2131	*/	1919	*/
2132	void	1920	void
2133	unflag_inv (object *op, int flag)	1921	unflag_inv (object *op, int flag)
2134	{	1922	{
2135	object *
2136	tmp;
2137
2138	if (op->inv)
2139	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1923	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2140	{	1924	{
2141	CLEAR_FLAG (tmp, flag);	1925	CLEAR_FLAG (tmp, flag);
2142	unflag_inv (tmp, flag);	1926	unflag_inv (tmp, flag);
2143	}	1927	}
2144	}
2145
2146	/*
2147	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2148	* all it's inventory (recursively).
2149	* If checksums are used, a player will get set_cheat called for
2150	* him/her-self and all object carried by a call to this function.
2151	*/
2152
2153	void
2154	set_cheat (object *op)
2155	{
2156	SET_FLAG (op, FLAG_WAS_WIZ);
2157	flag_inv (op, FLAG_WAS_WIZ);
2158	}	1928	}
2159		1929
2160	/*	1930	/*
2161	* find_free_spot(object, map, x, y, start, stop) will search for	1931	* find_free_spot(object, map, x, y, start, stop) will search for
2162	* a spot at the given map and coordinates which will be able to contain	1932	* a spot at the given map and coordinates which will be able to contain
…		…
2164	* to search (see the freearr_x/y[] definition).	1934	* to search (see the freearr_x/y[] definition).
2165	* It returns a random choice among the alternatives found.	1935	* It returns a random choice among the alternatives found.
2166	* start and stop are where to start relative to the free_arr array (1,9	1936	* start and stop are where to start relative to the free_arr array (1,9
2167	* does all 4 immediate directions). This returns the index into the	1937	* does all 4 immediate directions). This returns the index into the
2168	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1938	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2169	* Note - this only checks to see if there is space for the head of the
2170	* object - if it is a multispace object, this should be called for all
2171	* pieces.
2172	* Note2: This function does correctly handle tiled maps, but does not	1939	* Note: This function does correctly handle tiled maps, but does not
2173	* inform the caller. However, insert_ob_in_map will update as	1940	* inform the caller. However, insert_ob_in_map will update as
2174	* necessary, so the caller shouldn't need to do any special work.	1941	* necessary, so the caller shouldn't need to do any special work.
2175	* Note - updated to take an object instead of archetype - this is necessary	1942	* Note - updated to take an object instead of archetype - this is necessary
2176	* because arch_blocked (now ob_blocked) needs to know the movement type	1943	* because arch_blocked (now ob_blocked) needs to know the movement type
2177	* to know if the space in question will block the object. We can't use	1944	* to know if the space in question will block the object. We can't use
2178	* the archetype because that isn't correct if the monster has been	1945	* the archetype because that isn't correct if the monster has been
2179	* customized, changed states, etc.	1946	* customized, changed states, etc.
2180	*/	1947	*/
2181
2182	int	1948	int
2183	find_free_spot (const object *ob, mapstruct *m, int x, int y, int start, int stop)	1949	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2184	{	1950	{
2185	int
2186	i,
2187	index = 0, flag;
2188	static int
2189	altern[SIZEOFFREE];	1951	int altern[SIZEOFFREE];
		1952	int index = 0, flag;
2190		1953
2191	for (i = start; i < stop; i++)	1954	for (int i = start; i < stop; i++)
2192	{	1955	{
2193	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1956	mapxy pos (m, x, y); pos.move (i);
2194	if (!flag)	1957
		1958	if (!pos.normalise ())
		1959	continue;
		1960
		1961	mapspace &ms = *pos;
		1962
		1963	if (ms.flags () & P_IS_ALIVE)
		1964	continue;
		1965
		1966	/* However, often
		1967	* ob doesn't have any move type (when used to place exits)
		1968	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1969	*/
		1970	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1971	{
2195	altern[index++] = i;	1972	altern [index++] = i;
		1973	continue;
		1974	}
2196		1975
2197	/* Basically, if we find a wall on a space, we cut down the search size.	1976	/* Basically, if we find a wall on a space, we cut down the search size.
2198	* In this way, we won't return spaces that are on another side of a wall.	1977	* In this way, we won't return spaces that are on another side of a wall.
2199	* This mostly work, but it cuts down the search size in all directions -	1978	* This mostly work, but it cuts down the search size in all directions -
2200	* if the space being examined only has a wall to the north and empty	1979	* if the space being examined only has a wall to the north and empty
2201	* spaces in all the other directions, this will reduce the search space	1980	* spaces in all the other directions, this will reduce the search space
2202	* to only the spaces immediately surrounding the target area, and	1981	* to only the spaces immediately surrounding the target area, and
2203	* won't look 2 spaces south of the target space.	1982	* won't look 2 spaces south of the target space.
2204	*/	1983	*/
2205	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	1984	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1985	{
2206	stop = maxfree[i];	1986	stop = maxfree[i];
		1987	continue;
		1988	}
		1989
		1990	/* Note it is intentional that we check ob - the movement type of the
		1991	* head of the object should correspond for the entire object.
		1992	*/
		1993	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1994	continue;
		1995
		1996	if (ob->blocked (m, pos.x, pos.y))
		1997	continue;
		1998
		1999	altern [index++] = i;
2207	}	2000	}
		2001
2208	if (!index)	2002	if (!index)
2209	return -1;	2003	return -1;
		2004
2210	return altern[RANDOM () % index];	2005	return altern [rndm (index)];
2211	}	2006	}
2212		2007
2213	/*	2008	/*
2214	* find_first_free_spot(archetype, mapstruct, x, y) works like	2009	* find_first_free_spot(archetype, maptile, x, y) works like
2215	* find_free_spot(), but it will search max number of squares.	2010	* find_free_spot(), but it will search max number of squares.
2216	* But it will return the first available spot, not a random choice.	2011	* But it will return the first available spot, not a random choice.
2217	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2012	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2218	*/	2013	*/
2219
2220	int	2014	int
2221	find_first_free_spot (const object *ob, mapstruct *m, int x, int y)	2015	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2222	{	2016	{
2223	int
2224	i;
2225
2226	for (i = 0; i < SIZEOFFREE; i++)	2017	for (int i = 0; i < SIZEOFFREE; i++)
2227	{
2228	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2018	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2229	return i;	2019	return i;
2230	}	2020
2231	return -1;	2021	return -1;
2232	}	2022	}
2233		2023
2234	/*	2024	/*
2235	* The function permute(arr, begin, end) randomly reorders the array	2025	* The function permute(arr, begin, end) randomly reorders the array
2236	* arr[begin..end-1].	2026	* arr[begin..end-1].
		2027	* now uses a fisher-yates shuffle, old permute was broken
2237	*/	2028	*/
2238	static void	2029	static void
2239	permute (int *arr, int begin, int end)	2030	permute (int *arr, int begin, int end)
2240	{	2031	{
2241	int	2032	arr += begin;
2242	i,
2243	j,
2244	tmp,
2245	len;
2246
2247	len = end - begin;	2033	end -= begin;
2248	for (i = begin; i < end; i++)
2249	{
2250	j = begin + RANDOM () % len;
2251		2034
2252	tmp = arr[i];	2035	while (--end)
2253	arr[i] = arr[j];	2036	swap (arr [end], arr [rndm (end + 1)]);
2254	arr[j] = tmp;
2255	}
2256	}	2037	}
2257		2038
2258	/* new function to make monster searching more efficient, and effective!	2039	/* new function to make monster searching more efficient, and effective!
2259	* This basically returns a randomized array (in the passed pointer) of	2040	* This basically returns a randomized array (in the passed pointer) of
2260	* the spaces to find monsters. In this way, it won't always look for	2041	* the spaces to find monsters. In this way, it won't always look for
…		…
2263	* the 3x3 area will be searched, just not in a predictable order.	2044	* the 3x3 area will be searched, just not in a predictable order.
2264	*/	2045	*/
2265	void	2046	void
2266	get_search_arr (int *search_arr)	2047	get_search_arr (int *search_arr)
2267	{	2048	{
2268	int	2049	int i;
2269	i;
2270		2050
2271	for (i = 0; i < SIZEOFFREE; i++)	2051	for (i = 0; i < SIZEOFFREE; i++)
2272	{
2273	search_arr[i] = i;	2052	search_arr[i] = i;
2274	}
2275		2053
2276	permute (search_arr, 1, SIZEOFFREE1 + 1);	2054	permute (search_arr, 1, SIZEOFFREE1 + 1);
2277	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2055	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2278	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2056	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2279	}	2057	}
…		…
2288	* Perhaps incorrectly, but I'm making the assumption that exclude	2066	* Perhaps incorrectly, but I'm making the assumption that exclude
2289	* is actually want is going to try and move there. We need this info	2067	* is actually want is going to try and move there. We need this info
2290	* because we have to know what movement the thing looking to move	2068	* because we have to know what movement the thing looking to move
2291	* there is capable of.	2069	* there is capable of.
2292	*/	2070	*/
2293
2294	int	2071	int
2295	find_dir (mapstruct *m, int x, int y, object *exclude)	2072	find_dir (maptile *m, int x, int y, object *exclude)
2296	{	2073	{
2297	int
2298	i,
2299	max = SIZEOFFREE, mflags;	2074	int i, max = SIZEOFFREE, mflags;
2300		2075
2301	sint16 nx, ny;	2076	sint16 nx, ny;
2302	object *	2077	object *tmp;
2303	tmp;	2078	maptile *mp;
2304	mapstruct *
2305	mp;
2306		2079
2307	MoveType blocked, move_type;	2080	MoveType blocked, move_type;
2308		2081
2309	if (exclude && exclude->head)	2082	if (exclude && exclude->head_ () != exclude)
2310	{	2083	{
2311	exclude = exclude->head;	2084	exclude = exclude->head;
2312	move_type = exclude->move_type;	2085	move_type = exclude->move_type;
2313	}	2086	}
2314	else	2087	else
…		…
2322	mp = m;	2095	mp = m;
2323	nx = x + freearr_x[i];	2096	nx = x + freearr_x[i];
2324	ny = y + freearr_y[i];	2097	ny = y + freearr_y[i];
2325		2098
2326	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2099	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2100
2327	if (mflags & P_OUT_OF_MAP)	2101	if (mflags & P_OUT_OF_MAP)
2328	{
2329	max = maxfree[i];	2102	max = maxfree[i];
2330	}
2331	else	2103	else
2332	{	2104	{
2333	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2105	mapspace &ms = mp->at (nx, ny);
		2106
		2107	blocked = ms.move_block;
2334		2108
2335	if ((move_type & blocked) == move_type)	2109	if ((move_type & blocked) == move_type)
2336	{
2337	max = maxfree[i];	2110	max = maxfree[i];
2338	}
2339	else if (mflags & P_IS_ALIVE)	2111	else if (mflags & P_IS_ALIVE)
2340	{	2112	{
2341	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2113	for (tmp = ms.bot; tmp; tmp = tmp->above)
2342	{	2114	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2343	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2115	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2344	{
2345	break;	2116	break;
2346	}	2117
2347	}
2348	if (tmp)	2118	if (tmp)
2349	{
2350	return freedir[i];	2119	return freedir[i];
2351	}
2352	}	2120	}
2353	}	2121	}
2354	}	2122	}
		2123
2355	return 0;	2124	return 0;
2356	}	2125	}
2357		2126
2358	/*	2127	/*
2359	* distance(object 1, object 2) will return the square of the	2128	* distance(object 1, object 2) will return the square of the
2360	* distance between the two given objects.	2129	* distance between the two given objects.
2361	*/	2130	*/
2362
2363	int	2131	int
2364	distance (const object *ob1, const object *ob2)	2132	distance (const object *ob1, const object *ob2)
2365	{	2133	{
2366	int
2367	i;
2368
2369	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2134	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2370	return i;
2371	}	2135	}
2372		2136
2373	/*	2137	/*
2374	* find_dir_2(delta-x,delta-y) will return a direction in which	2138	* find_dir_2(delta-x,delta-y) will return a direction in which
2375	* an object which has subtracted the x and y coordinates of another	2139	* an object which has subtracted the x and y coordinates of another
2376	* object, needs to travel toward it.	2140	* object, needs to travel toward it.
2377	*/	2141	*/
2378
2379	int	2142	int
2380	find_dir_2 (int x, int y)	2143	find_dir_2 (int x, int y)
2381	{	2144	{
2382	int	2145	int q;
2383	q;
2384		2146
2385	if (y)	2147	if (y)
2386	q = x * 100 / y;	2148	q = x * 100 / y;
2387	else if (x)	2149	else if (x)
2388	q = -300 * x;	2150	q = -300 * x;
…		…
2413		2175
2414	return 3;	2176	return 3;
2415	}	2177	}
2416		2178
2417	/*	2179	/*
2418	* absdir(int): Returns a number between 1 and 8, which represent
2419	* the "absolute" direction of a number (it actually takes care of
2420	* "overflow" in previous calculations of a direction).
2421	*/
2422
2423	int
2424	absdir (int d)
2425	{
2426	while (d < 1)
2427	d += 8;
2428	while (d > 8)
2429	d -= 8;
2430	return d;
2431	}
2432
2433	/*
2434	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2180	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2435	* between two directions (which are expected to be absolute (see absdir())	2181	* between two directions (which are expected to be absolute (see absdir())
2436	*/	2182	*/
2437
2438	int	2183	int
2439	dirdiff (int dir1, int dir2)	2184	dirdiff (int dir1, int dir2)
2440	{	2185	{
2441	int	2186	int d;
2442	d;
2443		2187
2444	d = abs (dir1 - dir2);	2188	d = abs (dir1 - dir2);
2445	if (d > 4)	2189	if (d > 4)
2446	d = 8 - d;	2190	d = 8 - d;
		2191
2447	return d;	2192	return d;
2448	}	2193	}
2449		2194
2450	/* peterm:	2195	/* peterm:
2451	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2196	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2454	* This basically means that if direction is 15, then it could either go	2199	* This basically means that if direction is 15, then it could either go
2455	* direction 4, 14, or 16 to get back to where we are.	2200	* direction 4, 14, or 16 to get back to where we are.
2456	* Moved from spell_util.c to object.c with the other related direction	2201	* Moved from spell_util.c to object.c with the other related direction
2457	* functions.	2202	* functions.
2458	*/	2203	*/
2459
2460	int
2461	reduction_dir[SIZEOFFREE][3] = {	2204	int reduction_dir[SIZEOFFREE][3] = {
2462	{0, 0, 0}, /* 0 */	2205	{0, 0, 0}, /* 0 */
2463	{0, 0, 0}, /* 1 */	2206	{0, 0, 0}, /* 1 */
2464	{0, 0, 0}, /* 2 */	2207	{0, 0, 0}, /* 2 */
2465	{0, 0, 0}, /* 3 */	2208	{0, 0, 0}, /* 3 */
2466	{0, 0, 0}, /* 4 */	2209	{0, 0, 0}, /* 4 */
…		…
2514	* find a path to that monster that we found. If not,	2257	* find a path to that monster that we found. If not,
2515	* we don't bother going toward it. Returns 1 if we	2258	* we don't bother going toward it. Returns 1 if we
2516	* can see a direct way to get it	2259	* can see a direct way to get it
2517	* Modified to be map tile aware -.MSW	2260	* Modified to be map tile aware -.MSW
2518	*/	2261	*/
2519
2520
2521	int	2262	int
2522	can_see_monsterP (mapstruct *m, int x, int y, int dir)	2263	can_see_monsterP (maptile *m, int x, int y, int dir)
2523	{	2264	{
2524	sint16 dx, dy;	2265	sint16 dx, dy;
2525	int
2526	mflags;	2266	int mflags;
2527		2267
2528	if (dir < 0)	2268	if (dir < 0)
2529	return 0; /* exit condition: invalid direction */	2269	return 0; /* exit condition: invalid direction */
2530		2270
2531	dx = x + freearr_x[dir];	2271	dx = x + freearr_x[dir];
…		…
2544	return 0;	2284	return 0;
2545		2285
2546	/* yes, can see. */	2286	/* yes, can see. */
2547	if (dir < 9)	2287	if (dir < 9)
2548	return 1;	2288	return 1;
		2289
2549	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2290	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2550	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2291	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2292	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2551	}	2293	}
2552
2553
2554		2294
2555	/*	2295	/*
2556	* can_pick(picker, item): finds out if an object is possible to be	2296	* can_pick(picker, item): finds out if an object is possible to be
2557	* picked up by the picker. Returnes 1 if it can be	2297	* picked up by the picker. Returnes 1 if it can be
2558	* picked up, otherwise 0.	2298	* picked up, otherwise 0.
…		…
2560	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2300	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2561	* core dumps if they do.	2301	* core dumps if they do.
2562	*	2302	*
2563	* Add a check so we can't pick up invisible objects (0.93.8)	2303	* Add a check so we can't pick up invisible objects (0.93.8)
2564	*/	2304	*/
2565
2566	int	2305	int
2567	can_pick (const object *who, const object *item)	2306	can_pick (const object *who, const object *item)
2568	{	2307	{
2569	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2308	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2570	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2309	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2571	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2310	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2572	}	2311	}
2573		2312
2574
2575	/*	2313	/*
2576	* create clone from object to another	2314	* create clone from object to another
2577	*/	2315	*/
2578	object *	2316	object *
2579	object_create_clone (object *asrc)	2317	object::deep_clone ()
2580	{	2318	{
2581	object *	2319	assert (("deep_clone called on non-head object", is_head ()));
2582	dst = NULL, *tmp, *src, *part, *prev, *item;
2583		2320
2584	if (!asrc)	2321	object *dst = clone ();
2585	return NULL;
2586	src = asrc;
2587	if (src->head)
2588	src = src->head;
2589		2322
2590	prev = NULL;	2323	object *prev = dst;
2591	for (part = src; part; part = part->more)	2324	for (object *part = this->more; part; part = part->more)
2592	{	2325	{
2593	tmp = get_object ();	2326	object *tmp = part->clone ();
2594	copy_object (part, tmp);
2595	tmp->x -= src->x;
2596	tmp->y -= src->y;
2597	if (!part->head)
2598	{
2599	dst = tmp;
2600	tmp->head = NULL;
2601	}
2602	else
2603	{
2604	tmp->head = dst;	2327	tmp->head = dst;
2605	}
2606	tmp->more = NULL;
2607	if (prev)
2608	prev->more = tmp;	2328	prev->more = tmp;
2609	prev = tmp;	2329	prev = tmp;
2610	}	2330	}
2611		2331
2612	/*** copy inventory ***/
2613	for (item = src->inv; item; item = item->below)	2332	for (object *item = inv; item; item = item->below)
2614	{	2333	insert_ob_in_ob (item->deep_clone (), dst);
2615	(void) insert_ob_in_ob (object_create_clone (item), dst);
2616	}
2617		2334
2618	return dst;	2335	return dst;
2619	}
2620
2621	/* return true if the object was destroyed, 0 otherwise */
2622	int
2623	was_destroyed (const object *op, tag_t old_tag)
2624	{
2625	/* checking for FLAG_FREED isn't necessary, but makes this function more
2626	* robust */
2627	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2628	}
2629
2630	/* GROS - Creates an object using a string representing its content. */
2631
2632	/* Basically, we save the content of the string to a temp file, then call */
2633
2634	/* load_object on it. I admit it is a highly inefficient way to make things, */
2635
2636	/* but it was simple to make and allows reusing the load_object function. */
2637
2638	/* Remember not to use load_object_str in a time-critical situation. */
2639
2640	/* Also remember that multiparts objects are not supported for now. */
2641
2642	object *
2643	load_object_str (const char *obstr)
2644	{
2645	object *
2646	op;
2647	char
2648	filename[MAX_BUF];
2649
2650	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2651
2652	FILE *
2653	tempfile = fopen (filename, "w");
2654
2655	if (tempfile == NULL)
2656	{
2657	LOG (llevError, "Error - Unable to access load object temp file\n");
2658	return NULL;
2659	};
2660	fprintf (tempfile, obstr);
2661	fclose (tempfile);
2662
2663	op = get_object ();
2664
2665	object_thawer thawer (filename);
2666
2667	if (thawer)
2668	load_object (thawer, op, 0);
2669
2670	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2671	CLEAR_FLAG (op, FLAG_REMOVED);
2672
2673	return op;
2674	}	2336	}
2675		2337
2676	/* This returns the first object in who's inventory that	2338	/* This returns the first object in who's inventory that
2677	* has the same type and subtype match.	2339	* has the same type and subtype match.
2678	* returns NULL if no match.	2340	* returns NULL if no match.
2679	*/	2341	*/
2680	object *	2342	object *
2681	find_obj_by_type_subtype (const object *who, int type, int subtype)	2343	find_obj_by_type_subtype (const object *who, int type, int subtype)
2682	{	2344	{
2683	object *
2684	tmp;
2685
2686	for (tmp = who->inv; tmp; tmp = tmp->below)	2345	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2687	if (tmp->type == type && tmp->subtype == subtype)	2346	if (tmp->type == type && tmp->subtype == subtype)
2688	return tmp;	2347	return tmp;
2689		2348
2690	return NULL;	2349	return 0;
2691	}	2350	}
2692		2351
2693	/* If ob has a field named key, return the link from the list,	2352	const shstr &
2694	* otherwise return NULL.	2353	object::kv_get (const shstr &key) const
2695	*
2696	* key must be a passed in shared string - otherwise, this won't
2697	* do the desired thing.
2698	*/
2699	key_value *
2700	get_ob_key_link (const object *ob, const char *key)
2701	{	2354	{
2702	key_value *	2355	for (key_value *kv = key_values; kv; kv = kv->next)
2703	link;
2704
2705	for (link = ob->key_values; link != NULL; link = link->next)
2706	{
2707	if (link->key == key)	2356	if (kv->key == key)
		2357	return kv->value;
		2358
		2359	return shstr_null;
		2360	}
		2361
		2362	void
		2363	object::kv_set (const shstr &key, const shstr &value)
		2364	{
		2365	for (key_value *kv = key_values; kv; kv = kv->next)
		2366	if (kv->key == key)
		2367	{
		2368	kv->value = value;
		2369	return;
		2370	}
		2371
		2372	key_value *kv = new key_value;
		2373
		2374	kv->next = key_values;
		2375	kv->key = key;
		2376	kv->value = value;
		2377
		2378	key_values = kv;
		2379	}
		2380
		2381	void
		2382	object::kv_del (const shstr &key)
		2383	{
		2384	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2385	if ((*kvp)->key == key)
		2386	{
		2387	key_value *kv = *kvp;
		2388	*kvp = (*kvp)->next;
		2389	delete kv;
		2390	return;
		2391	}
		2392	}
		2393
		2394	object::depth_iterator::depth_iterator (object *container)
		2395	: iterator_base (container)
		2396	{
		2397	while (item->inv)
		2398	item = item->inv;
		2399	}
		2400
		2401	void
		2402	object::depth_iterator::next ()
		2403	{
		2404	if (item->below)
		2405	{
		2406	item = item->below;
		2407
		2408	while (item->inv)
		2409	item = item->inv;
		2410	}
		2411	else
		2412	item = item->env;
		2413	}
		2414
		2415	const char *
		2416	object::flag_desc (char *desc, int len) const
		2417	{
		2418	char *p = desc;
		2419	bool first = true;
		2420
		2421	*p = 0;
		2422
		2423	for (int i = 0; i < NUM_FLAGS; i++)
		2424	{
		2425	if (len <= 10) // magic constant!
2708	{	2426	{
2709	return link;	2427	snprintf (p, len, ",...");
		2428	break;
2710	}	2429	}
2711	}
2712		2430
2713	return NULL;	2431	if (flag [i])
2714	}	2432	{
		2433	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2434	len -= cnt;
		2435	p += cnt;
		2436	first = false;
		2437	}
		2438	}
2715		2439
2716	/*	2440	return desc;
2717	* Returns the value of op has an extra_field for key, or NULL.	2441	}
2718	*	2442
2719	* The argument doesn't need to be a shared string.	2443	// return a suitable string describing an object in enough detail to find it
2720	*
2721	* The returned string is shared.
2722	*/
2723	const char *	2444	const char *
2724	get_ob_key_value (const object *op, const char *const key)	2445	object::debug_desc (char *info) const
2725	{	2446	{
2726	key_value *	2447	char flagdesc[512];
2727	link;	2448	char info2[256 * 4];
		2449	char *p = info;
		2450
		2451	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s,flags:[%s],type:%d}",
		2452	count,
		2453	uuid.c_str (),
		2454	&name,
		2455	title ? "\",title:\"" : "",
		2456	title ? (const char *)title : "",
		2457	flag_desc (flagdesc, 512), type);
		2458
		2459	if (!flag[FLAG_REMOVED] && env)
		2460	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2461
		2462	if (map)
		2463	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2464
		2465	return info;
		2466	}
		2467
2728	const char *	2468	const char *
2729	canonical_key;	2469	object::debug_desc () const
		2470	{
		2471	static char info[3][256 * 4];
		2472	static int info_idx;
2730		2473
2731	canonical_key = shstr::find (key);	2474	return debug_desc (info [++info_idx % 3]);
		2475	}
2732		2476
2733	if (canonical_key == NULL)	2477	struct region *
2734	{	2478	object::region () const
2735	/* 1. There being a field named key on any object	2479	{
2736	* implies there'd be a shared string to find.	2480	return map ? map->region (x, y)
2737	* 2. Since there isn't, no object has this field.	2481	: region::default_region ();
2738	* 3. Therefore, *this* object doesn't have this field.	2482	}
2739	*/	2483
		2484	const materialtype_t *
		2485	object::dominant_material () const
		2486	{
		2487	if (materialtype_t *mt = name_to_material (materialname))
		2488	return mt;
		2489
		2490	return name_to_material (shstr_unknown);
		2491	}
		2492
		2493	void
		2494	object::open_container (object *new_container)
		2495	{
		2496	if (container == new_container)
2740	return NULL;	2497	return;
		2498
		2499	object *old_container = container;
		2500
		2501	if (old_container)
2741	}	2502	{
		2503	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2504	return;
2742		2505
2743	/* This is copied from get_ob_key_link() above -	2506	#if 0
2744	* only 4 lines, and saves the function call overhead.	2507	// remove the "Close old_container" object.
		2508	if (object *closer = old_container->inv)
		2509	if (closer->type == CLOSE_CON)
		2510	closer->destroy ();
		2511	#endif
		2512
		2513	// make sure the container is available
		2514	esrv_send_item (this, old_container);
		2515
		2516	old_container->flag [FLAG_APPLIED] = false;
		2517	container = 0;
		2518
		2519	// client needs item update to make it work, client bug requires this to be separate
		2520	esrv_update_item (UPD_FLAGS, this, old_container);
		2521
		2522	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2523	play_sound (sound_find ("chest_close"));
		2524	}
		2525
		2526	if (new_container)
		2527	{
		2528	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2529	return;
		2530
		2531	// TODO: this does not seem to serve any purpose anymore?
		2532	#if 0
		2533	// insert the "Close Container" object.
		2534	if (archetype *closer = new_container->other_arch)
		2535	{
		2536	object *closer = arch_to_object (new_container->other_arch);
		2537	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2538	new_container->insert (closer);
		2539	}
		2540	#endif
		2541
		2542	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2543
		2544	// make sure the container is available, client bug requires this to be separate
		2545	esrv_send_item (this, new_container);
		2546
		2547	new_container->flag [FLAG_APPLIED] = true;
		2548	container = new_container;
		2549
		2550	// client needs flag change
		2551	esrv_update_item (UPD_FLAGS, this, new_container);
		2552	esrv_send_inventory (this, new_container);
		2553	play_sound (sound_find ("chest_open"));
		2554	}
		2555	// else if (!old_container->env && contr && contr->ns)
		2556	// contr->ns->floorbox_reset ();
		2557	}
		2558
		2559	object *
		2560	object::force_find (const shstr name)
		2561	{
		2562	/* cycle through his inventory to look for the MARK we want to
		2563	* place
2745	*/	2564	*/
2746	for (link = op->key_values; link != NULL; link = link->next)	2565	for (object *tmp = inv; tmp; tmp = tmp->below)
2747	{	2566	if (tmp->type == FORCE && tmp->slaying == name)
2748	if (link->key == canonical_key)	2567	return splay (tmp);
2749	{	2568
2750	return link->value;
2751	}
2752	}
2753	return NULL;	2569	return 0;
2754	}	2570	}
2755		2571
2756		2572	void
2757	/*	2573	object::force_add (const shstr name, int duration)
2758	* Updates the canonical_key in op to value.
2759	*
2760	* canonical_key is a shared string (value doesn't have to be).
2761	*
2762	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2763	* keys.
2764	*
2765	* Returns TRUE on success.
2766	*/
2767	int
2768	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2769	{	2574	{
2770	key_value *	2575	if (object *force = force_find (name))
2771	field = NULL, *last = NULL;	2576	force->destroy ();
2772		2577
2773	for (field = op->key_values; field != NULL; field = field->next)	2578	object *force = get_archetype (FORCE_NAME);
2774	{
2775	if (field->key != canonical_key)
2776	{
2777	last = field;
2778	continue;
2779	}
2780		2579
2781	if (value)	2580	force->slaying = name;
2782	field->value = value;	2581	force->stats.food = 1;
2783	else	2582	force->speed_left = -1.f;
2784	{
2785	/* Basically, if the archetype has this key set,
2786	* we need to store the null value so when we save
2787	* it, we save the empty value so that when we load,
2788	* we get this value back again.
2789	*/
2790	if (get_ob_key_link (&op->arch->clone, canonical_key))
2791	field->value = 0;
2792	else
2793	{
2794	if (last)
2795	last->next = field->next;
2796	else
2797	op->key_values = field->next;
2798		2583
2799	delete field;	2584	force->set_speed (duration ? 1.f / duration : 0.f);
2800	}	2585	force->flag [FLAG_IS_USED_UP] = true;
2801	}	2586	force->flag [FLAG_APPLIED] = true;
2802	return TRUE;
2803	}
2804	/* IF we get here, key doesn't exist */
2805		2587
2806	/* No field, we'll have to add it. */	2588	insert (force);
		2589	}
2807		2590
2808	if (!add_key)	2591	void
2809	{	2592	object::play_sound (faceidx sound)
2810	return FALSE;	2593	{
2811	}	2594	if (!sound)
2812	/* There isn't any good reason to store a null
2813	* value in the key/value list. If the archetype has
2814	* this key, then we should also have it, so shouldn't
2815	* be here. If user wants to store empty strings,
2816	* should pass in ""
2817	*/
2818	if (value == NULL)
2819	return TRUE;	2595	return;
2820		2596
2821	field = new key_value;	2597	if (flag [FLAG_REMOVED])
		2598	return;
2822		2599
2823	field->key = canonical_key;
2824	field->value = value;
2825	/* Usual prepend-addition. */
2826	field->next = op->key_values;
2827	op->key_values = field;
2828
2829	return TRUE;
2830	}
2831
2832	/*
2833	* Updates the key in op to value.
2834	*
2835	* If add_key is FALSE, this will only update existing keys,
2836	* and not add new ones.
2837	* In general, should be little reason FALSE is ever passed in for add_key
2838	*
2839	* Returns TRUE on success.
2840	*/
2841	int
2842	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2843	{
2844	shstr key_ (key);
2845
2846	return set_ob_key_value_s (op, key_, value, add_key);
2847	}
2848
2849	void
2850	object::deep_iterator::next ()
2851	{
2852	if (item->inv)	2600	if (env)
2853	item = item->inv;	2601	{
2854	else if (item->below)	2602	if (object *pl = in_player ())
2855	item = item->below;	2603	pl->contr->play_sound (sound);
		2604	}
2856	else	2605	else
2857	item = item->env->below;	2606	map->play_sound (sound, x, y);
2858	}	2607	}
		2608

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