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Comparing deliantra/server/common/object.C (file contents):
Revision 1.28 by root, Mon Sep 11 12:10:21 2006 UTC vs.
Revision 1.235 by root, Tue May 6 20:00:12 2008 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
8	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
9	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
10	(at your option) any later version.	11	* (at your option) any later version.
11		12	*
12	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,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	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
18	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
20		21	* The authors can be reached via e-mail to <support@deliantra.net>
21	The authors can be reached via e-mail at crossfire-devel@real-time.com
22	*/	22	*/
23		23
24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
25	sub/add_weight will transcend the environment updating the carrying
26	variable. */
27	#include <global.h>	24	#include <global.h>
28	#include <stdio.h>	25	#include <stdio.h>
29	#include <sys/types.h>	26	#include <sys/types.h>
30	#include <sys/uio.h>	27	#include <sys/uio.h>
31	#include <object.h>	28	#include <object.h>
32	#include <funcpoint.h>	29	#include <sproto.h>
33	#include <skills.h>
34	#include <loader.h>	30	#include <loader.h>
35		31
36	int nrofallocobjects = 0;	32	#include <bitset>
37		33
38	object *objects; /* Pointer to the list of used objects */	34	UUID UUID::cur;
39	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;
40		37
41	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,
42	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
43	};	46	};
44	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,
45	-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
46	};	52	};
47	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,
48	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
49	};	58	};
50	int freedir[SIZEOFFREE] = {	59	int freedir[SIZEOFFREE] = {
51	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,
52	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
53	};	64	};
54		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
55	/* 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. */
56	static int	141	static bool
57	compare_ob_value_lists_one (const object *wants, const object *has)	142	compare_ob_value_lists_one (const object *wants, const object *has)
58	{	143	{
59	key_value *wants_field;
60
61	/* 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
62	* 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
63	* different structure or at least keep the lists sorted...	146	* different structure or at least keep the lists sorted...
64	*/	147	*/
65		148
66	/* For each field in wants, */	149	/* For each field in wants, */
67	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)
68	{	151	if (has->kv_get (kv->key) != kv->value)
69	key_value *has_field;	152	return false;
70
71	/* Look for a field in has with the same key. */
72	has_field = get_ob_key_link (has, wants_field->key);
73
74	if (has_field == NULL)
75	{
76	/* No field with that name. */
77	return FALSE;
78	}
79
80	/* Found the matching field. */
81	if (has_field->value != wants_field->value)
82	{
83	/* Values don't match, so this half of the comparison is false. */
84	return FALSE;
85	}
86
87	/* If we get here, we found a match. Now for the next field in wants. */
88	}
89		153
90	/* 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. */
91	return TRUE;	155	return true;
92	}	156	}
93		157
94	/* Returns TRUE if ob1 has the same key_values as ob2. */	158	/* Returns TRUE if ob1 has the same key_values as ob2. */
95	static int	159	static bool
96	compare_ob_value_lists (const object *ob1, const object *ob2)	160	compare_ob_value_lists (const object *ob1, const object *ob2)
97	{	161	{
98	/* 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,
99	* so we need to run the comparison *twice*. :(	163	* so we need to run the comparison *twice*. :(
100	*/	164	*/
101	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);
102	}	167	}
103		168
104	/* 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
105	* they can be merged together.	170	* they can be merged together.
106	*	171	*
107	* 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
108	* replaces - this is mostly for clarity - a decent compiler should hopefully	173	* replaces - this is mostly for clarity - a decent compiler should hopefully
109	* reduce this to the same efficiency.	174	* reduce this to the same efficiency.
110	*	175	*
111	* Check nrof variable *before* calling CAN_MERGE()	176	* Check nrof variable *before* calling can_merge()
112	*	177	*
113	* Improvements made with merge: Better checking on potion, and also	178	* Improvements made with merge: Better checking on potion, and also
114	* check weight	179	* check weight
115	*/	180	*/
116
117	bool object::can_merge (object *ob1, object *ob2)	181	bool object::can_merge_slow (object *ob1, object *ob2)
118	{	182	{
119	/* A couple quicksanity checks */	183	/* A couple quicksanity checks */
120	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)
121	return 0;	189	return 0;
122		190
123	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))
124	return 0;	197	return 0;
125		198
126	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
127	* value could not be stored in a sint32 (which unfortunately sometimes is
128	* used to store nrof).
129	*/
130	if (ob1->nrof + ob2->nrof >= 1UL << 31)
131	return 0;
132
133	/* If the objects have been identified, set the BEEN_APPLIED flag.	199	/* If the objects have been identified, set the BEEN_APPLIED flag.
134	* 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
135	* 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
136	* 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
137	* flags lose any meaning.	203	* flags lose any meaning.
138	*/	204	*/
139	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	205	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
140	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	206	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
141		207
142	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	208	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
143	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	209	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
144		210
145		211	if (ob1->arch->name != ob2->arch->name
146	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
147	* being locked in inventory should prevent merging.
148	* 0x4 in flags3 is CLIENT_SENT
149	*/
150	if ((ob1->arch != ob2->arch) ||
151	(ob1->flags[0] != ob2->flags[0]) ||
152	(ob1->flags[1] != ob2->flags[1]) ||
153	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
154	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
155	(ob1->name != ob2->name) ||	212	|| ob1->name != ob2->name
156	(ob1->title != ob2->title) ||	213	|| ob1->title != ob2->title
157	(ob1->msg != ob2->msg) ||	214	|| ob1->msg != ob2->msg
158	(ob1->weight != ob2->weight) ||	215	|| ob1->weight != ob2->weight
159	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
160	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
161	(ob1->attacktype != ob2->attacktype) ||	216	|| ob1->attacktype != ob2->attacktype
162	(ob1->magic != ob2->magic) ||	217	|| ob1->magic != ob2->magic
163	(ob1->slaying != ob2->slaying) ||	218	|| ob1->slaying != ob2->slaying
164	(ob1->skill != ob2->skill) ||	219	|| ob1->skill != ob2->skill
165	(ob1->value != ob2->value) ||	220	|| ob1->value != ob2->value
166	(ob1->animation_id != ob2->animation_id) ||	221	|| ob1->animation_id != ob2->animation_id
167	(ob1->client_type != ob2->client_type) ||	222	|| ob1->client_type != ob2->client_type
168	(ob1->materialname != ob2->materialname) ||	223	|| ob1->materialname != ob2->materialname
169	(ob1->lore != ob2->lore) ||	224	|| ob1->lore != ob2->lore
170	(ob1->subtype != ob2->subtype) ||	225	|| ob1->subtype != ob2->subtype
171	(ob1->move_type != ob2->move_type) ||	226	|| ob1->move_type != ob2->move_type
172	(ob1->move_block != ob2->move_block) ||	227	|| ob1->move_block != ob2->move_block
173	(ob1->move_allow != ob2->move_allow) ||	228	|| ob1->move_allow != ob2->move_allow
174	(ob1->move_on != ob2->move_on) ||	229	|| ob1->move_on != ob2->move_on
175	(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)))
176	return 0;	235	return 0;
177		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
178	/* This is really a spellbook check - really, we should	244	/* This is really a spellbook check - we should in general
179	* check all objects in the inventory.	245	* not merge objects with real inventories, as splitting them
		246	* is hard.
180	*/	247	*/
181	if (ob1->inv || ob2->inv)	248	if (ob1->inv || ob2->inv)
182	{	249	{
183	/* if one object has inventory but the other doesn't, not equiv */
184	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
185	return 0;
186
187	/* Now check to see if the two inventory objects could merge */
188	if (!CAN_MERGE (ob1->inv, ob2->inv))	250	if (!(ob1->inv && ob2->inv))
189	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 */
190		258
191	/* 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
192	* if it is valid.	260	* if it is valid.
193	*/	261	*/
194	}	262	}
…		…
202		270
203	/* 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
204	* 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
205	* check?	273	* check?
206	*/	274	*/
207	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	275	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
208	return 0;	276	return 0;
209		277
210	switch (ob1->type)	278	switch (ob1->type)
211	{	279	{
212	case SCROLL:	280	case SCROLL:
213	if (ob1->level != ob2->level)	281	if (ob1->level != ob2->level)
214	return 0;	282	return 0;
215	break;	283	break;
216	}	284	}
217		285
218	if (ob1->key_values != NULL || ob2->key_values != NULL)	286	if (ob1->key_values || ob2->key_values)
219	{	287	{
220	/* At least one of these has key_values. */	288	/* At least one of these has key_values. */
221	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	289	if ((!ob1->key_values) != (!ob2->key_values))
222	/* 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))
223	return 0;	293	return 0;
224	else if (!compare_ob_value_lists (ob1, ob2))
225	return 0;
226	}	294	}
227		295
228	//TODO: generate an event or call into perl for additional checks
229	if (ob1->self || ob2->self)	296	if (ob1->self || ob2->self)
230	{	297	{
231	ob1->optimise ();	298	ob1->optimise ();
232	ob2->optimise ();	299	ob2->optimise ();
233		300
234	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)
235	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	}
236	}	315	}
237		316
238	/* Everything passes, must be OK. */	317	/* Everything passes, must be OK. */
239	return 1;	318	return 1;
240	}	319	}
241		320
		321	// find player who can see this object
		322	object *
		323	object::visible_to () const
		324	{
		325	if (client_visible () && !flag [FLAG_REMOVED])
		326	{
		327	// see if we are in a container of sorts
		328	if (env)
		329	{
		330	// the player inventory itself is always visible
		331	if (env->type == PLAYER)
		332	return env;
		333
		334	// else a player could have our env open
		335	object *envest = env->outer_env ();
		336
		337	// the player itself is always on a map, so we will find him here
		338	// even if our inv is in a player.
		339	if (envest->is_on_map ())
		340	if (object *pl = envest->ms ().player ())
		341	if (pl->container == env)
		342	return pl;
		343	}
		344	else
		345	{
		346	// maybe there is a player standing on the same mapspace
		347	// this will catch the case where "this" is a player
		348	if (object *pl = ms ().player ())
		349	if (!pl->container || this == pl->container)
		350	return pl;
		351	}
		352	}
		353
		354	return 0;
		355	}
		356
		357	// adjust weight per container type ("of holding")
		358	static sint32
		359	weight_adjust_for (object *op, sint32 weight)
		360	{
		361	return op->type == CONTAINER
		362	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		363	: weight;
		364	}
		365
242	/*	366	/*
		367	* adjust_weight(object, weight) adds the specified weight to an object,
		368	* and also updates how much the environment(s) is/are carrying.
		369	*/
		370	static void
		371	adjust_weight (object *op, sint32 weight)
		372	{
		373	while (op)
		374	{
		375	// adjust by actual difference to account for rounding errors
		376	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		377	weight = weight_adjust_for (op, op->carrying)
		378	- weight_adjust_for (op, op->carrying - weight);
		379
		380	if (!weight)
		381	return;
		382
		383	op->carrying += weight;
		384
		385	if (object *pl = op->visible_to ())
		386	if (pl != op) // player is handled lazily
		387	esrv_update_item (UPD_WEIGHT, pl, op);
		388
		389	op = op->env;
		390	}
		391	}
		392
		393	/*
243	* sum_weight() is a recursive function which calculates the weight	394	* this is a recursive function which calculates the weight
244	* an object is carrying. It goes through in figures out how much	395	* an object is carrying. It goes through op and figures out how much
245	* containers are carrying, and sums it up.	396	* containers are carrying, and sums it up.
246	*/	397	*/
247	long	398	void
248	sum_weight (object *op)	399	object::update_weight ()
249	{	400	{
250	long sum;	401	sint32 sum = 0;
251	object *inv;
252		402
253	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	403	for (object *op = inv; op; op = op->below)
254	{	404	{
255	if (inv->inv)	405	if (op->inv)
256	sum_weight (inv);	406	op->update_weight ();
257	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	407
		408	sum += op->total_weight ();
		409	}
		410
		411	sum = weight_adjust_for (this, sum);
		412
		413	if (sum != carrying)
258	}	414	{
259	if (op->type == CONTAINER && op->stats.Str)
260	sum = (sum * (100 - op->stats.Str)) / 100;
261	if (op->carrying != sum)
262	op->carrying = sum;	415	carrying = sum;
263	return sum;
264	}
265		416
266	/**	417	if (object *pl = visible_to ())
267	* Return the outermost environment object for a given object.	418	if (pl != this) // player is handled lazily
268	*/	419	esrv_update_item (UPD_WEIGHT, pl, this);
269
270	object *
271	object_get_env_recursive (object *op)
272	{
273	while (op->env != NULL)
274	op = op->env;
275	return op;
276	}
277
278	/*
279	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
280	* a better check. We basically keeping traversing up until we can't
281	* or find a player.
282	*/
283
284	object *
285	is_player_inv (object *op)
286	{
287	for (; op != NULL && op->type != PLAYER; op = op->env)
288	if (op->env == op)
289	op->env = NULL;
290	return op;
291	}
292
293	/*
294	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
295	* Some error messages.
296	* The result of the dump is stored in the static global errmsg array.
297	*/
298
299	void
300	dump_object2 (object *op)
301	{
302	errmsg[0] = 0;
303	return;
304	//TODO//D#d#
305	#if 0
306	char *cp;
307
308	/* object *tmp;*/
309
310	if (op->arch != NULL)
311	{	420	}
312	strcat (errmsg, "arch ");
313	strcat (errmsg, op->arch->name ? op->arch->name : "(null)");
314	strcat (errmsg, "\n");
315	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
316	strcat (errmsg, cp);
317	# if 0
318	/* Don't dump player diffs - they are too long, mostly meaningless, and
319	* will overflow the buffer.
320	* Changed so that we don't dump inventory either. This may
321	* also overflow the buffer.
322	*/
323	if (op->type != PLAYER && (cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
324	strcat (errmsg, cp);
325	for (tmp = op->inv; tmp; tmp = tmp->below)
326	dump_object2 (tmp);
327	# endif
328	strcat (errmsg, "end\n");
329	}
330	else
331	{
332	strcat (errmsg, "Object ");
333	if (op->name == NULL)
334	strcat (errmsg, "(null)");
335	else
336	strcat (errmsg, op->name);
337	strcat (errmsg, "\n");
338	# if 0
339	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
340	strcat (errmsg, cp);
341	for (tmp = op->inv; tmp; tmp = tmp->below)
342	dump_object2 (tmp);
343	# endif
344	strcat (errmsg, "end\n");
345	}
346	#endif
347	}	421	}
348		422
349	/*	423	/*
350	* Dumps an object. Returns output in the static global errmsg array.	424	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
351	*/	425	*/
352		426	char *
353	void
354	dump_object (object *op)	427	dump_object (object *op)
355	{	428	{
356	if (op == NULL)	429	if (!op)
357	{	430	return strdup ("[NULLOBJ]");
358	strcpy (errmsg, "[NULL pointer]");
359	return;
360	}
361	errmsg[0] = '\0';
362	dump_object2 (op);
363	}
364		431
365	void	432	object_freezer freezer;
366	dump_all_objects (void)	433	op->write (freezer);
367	{	434	return freezer.as_string ();
368	object *op;
369
370	for (op = objects; op != NULL; op = op->next)
371	{
372	dump_object (op);
373	fprintf (logfile, "Object %d\n:%s\n", op->count, errmsg);
374	}
375	}	435	}
376		436
377	/*	437	/*
378	* get_nearest_part(multi-object, object 2) returns the part of the	438	* get_nearest_part(multi-object, object 2) returns the part of the
379	* multi-object 1 which is closest to the second object.	439	* multi-object 1 which is closest to the second object.
380	* If it's not a multi-object, it is returned.	440	* If it's not a multi-object, it is returned.
381	*/	441	*/
382
383	object *	442	object *
384	get_nearest_part (object *op, const object *pl)	443	get_nearest_part (object *op, const object *pl)
385	{	444	{
386	object *tmp, *closest;	445	object *tmp, *closest;
387	int last_dist, i;	446	int last_dist, i;
388		447
389	if (op->more == NULL)	448	if (!op->more)
390	return op;	449	return op;
		450
391	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	451	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		452	tmp;
		453	tmp = tmp->more)
392	if ((i = distance (tmp, pl)) < last_dist)	454	if ((i = distance (tmp, pl)) < last_dist)
393	closest = tmp, last_dist = i;	455	closest = tmp, last_dist = i;
		456
394	return closest;	457	return closest;
395	}	458	}
396		459
397	/*	460	/*
398	* Returns the object which has the count-variable equal to the argument.	461	* Returns the object which has the count-variable equal to the argument.
		462	* VERRRY slow.
399	*/	463	*/
400
401	object *	464	object *
402	find_object (tag_t i)	465	find_object (tag_t i)
403	{	466	{
404	object *op;	467	for_all_objects (op)
405
406	for (op = objects; op != NULL; op = op->next)
407	if (op->count == i)	468	if (op->count == i)
408	break;
409	return op;	469	return op;
		470
		471	return 0;
410	}	472	}
411		473
412	/*	474	/*
413	* Returns the first object which has a name equal to the argument.	475	* Returns the first object which has a name equal to the argument.
414	* Used only by the patch command, but not all that useful.	476	* Used only by the patch command, but not all that useful.
415	* Enables features like "patch <name-of-other-player> food 999"	477	* Enables features like "patch <name-of-other-player> food 999"
416	*/	478	*/
417
418	object *	479	object *
419	find_object_name (const char *str)	480	find_object_name (const char *str)
420	{	481	{
421	const char *name = shstr::find (str);	482	shstr_cmp str_ (str);
422	object *op;	483	object *op;
423		484
424	for (op = objects; op != NULL; op = op->next)	485	for_all_objects (op)
425	if (&op->name == name)	486	if (op->name == str_)
426	break;	487	break;
427		488
428	return op;	489	return op;
429	}
430
431	void
432	free_all_object_data ()
433	{
434	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
435	}
436
437	/*
438	* Returns the object which this object marks as being the owner.
439	* A id-scheme is used to avoid pointing to objects which have been
440	* freed and are now reused. If this is detected, the owner is
441	* set to NULL, and NULL is returned.
442	* Changed 2004-02-12 - if the player is setting at the play again
443	* prompt, he is removed, and we don't want to treat him as an owner of
444	* anything, so check removed flag. I don't expect that this should break
445	* anything - once an object is removed, it is basically dead anyways.
446	*/
447
448	object *
449	get_owner (object *op)
450	{
451	if (op->owner == NULL)
452	return NULL;
453
454	if (!QUERY_FLAG (op->owner, FLAG_FREED) && !QUERY_FLAG (op->owner, FLAG_REMOVED) && op->owner->count == op->ownercount)
455	return op->owner;
456
457	op->owner = NULL;
458	op->ownercount = 0;
459	return NULL;
460	}
461
462	void
463	clear_owner (object *op)
464	{
465	if (!op)
466	return;
467
468	if (op->owner && op->ownercount == op->owner->count)
469	op->owner->refcount--;
470
471	op->owner = NULL;
472	op->ownercount = 0;
473	}	490	}
474		491
475	/*	492	/*
476	* Sets the owner and sets the skill and exp pointers to owner's current	493	* Sets the owner and sets the skill and exp pointers to owner's current
477	* skill and experience objects.	494	* skill and experience objects.
478	*/	495	* ACTUALLY NO! investigate! TODO
479	void
480	set_owner (object *op, object *owner)
481	{
482	if (owner == NULL || op == NULL)
483	return;
484
485	/* next line added to allow objects which own objects */
486	/* Add a check for ownercounts in here, as I got into an endless loop
487	* with the fireball owning a poison cloud which then owned the
488	* fireball. I believe that was caused by one of the objects getting
489	* freed and then another object replacing it. Since the ownercounts
490	* didn't match, this check is valid and I believe that cause is valid.
491	*/	496	*/
492	while (owner->owner && owner != owner->owner && owner->ownercount == owner->owner->count)	497	void
		498	object::set_owner (object *owner)
		499	{
		500	// allow objects which own objects
		501	if (owner)
		502	while (owner->owner)
493	owner = owner->owner;	503	owner = owner->owner;
494		504
495	/* IF the owner still has an owner, we did not resolve to a final owner.	505	if (flag [FLAG_FREED])
496	* so lets not add to that.
497	*/
498	if (owner->owner)
499	return;
500
501	op->owner = owner;
502
503	op->ownercount = owner->count;
504	owner->refcount++;
505	}
506
507	/* Set the owner to clone's current owner and set the skill and experience
508	* objects to clone's objects (typically those objects that where the owner's
509	* current skill and experience objects at the time when clone's owner was
510	* set - not the owner's current skill and experience objects).
511	*
512	* Use this function if player created an object (e.g. fire bullet, swarm
513	* spell), and this object creates further objects whose kills should be
514	* accounted for the player's original skill, even if player has changed
515	* skills meanwhile.
516	*/
517	void
518	copy_owner (object *op, object *clone)
519	{
520	object *owner = get_owner (clone);
521
522	if (owner == NULL)
523	{	506	{
524	/* players don't have owners - they own themselves. Update	507	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
525	* as appropriate.
526	*/
527	if (clone->type == PLAYER)
528	owner = clone;
529	else
530	return;	508	return;
		509	}
		510
		511	this->owner = owner;
		512	}
		513
		514	int
		515	object::slottype () const
		516	{
		517	if (type == SKILL)
531	}	518	{
		519	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		520	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		521	}
		522	else
		523	{
		524	if (slot [body_combat].info) return slot_combat;
		525	if (slot [body_range ].info) return slot_ranged;
		526	}
		527
		528	return slot_none;
		529	}
532		530
533	set_owner (op, owner);	531	bool
		532	object::change_weapon (object *ob)
		533	{
		534	if (current_weapon == ob)
		535	return true;
		536
		537	if (chosen_skill)
		538	chosen_skill->flag [FLAG_APPLIED] = false;
		539
		540	current_weapon = ob;
		541	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		542
		543	if (chosen_skill)
		544	chosen_skill->flag [FLAG_APPLIED] = true;
		545
		546	update_stats ();
		547
		548	if (ob)
		549	{
		550	// now check wether any body locations became invalid, in which case
		551	// we cannot apply the weapon at the moment.
		552	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		553	if (slot[i].used < 0)
		554	{
		555	current_weapon = chosen_skill = 0;
		556	update_stats ();
		557
		558	new_draw_info_format (NDI_UNIQUE, 0, this,
		559	"You try to balance all your items at once, "
		560	"but the %s is just too much for your body. "
		561	"[You need to unapply some items first.]", &ob->name);
		562	return false;
		563	}
		564
		565	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		566	}
		567	else
		568	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		569
		570	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		571	{
		572	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		573	&name, ob->debug_desc ());
		574	return false;
		575	}
		576
		577	return true;
534	}	578	}
535		579
536	/* Zero the key_values on op, decrementing the shared-string	580	/* Zero the key_values on op, decrementing the shared-string
537	* refcounts and freeing the links.	581	* refcounts and freeing the links.
538	*/	582	*/
539	static void	583	static void
540	free_key_values (object *op)	584	free_key_values (object *op)
541	{	585	{
542	for (key_value *i = op->key_values; i != 0;)	586	for (key_value *i = op->key_values; i; )
543	{	587	{
544	key_value *next = i->next;	588	key_value *next = i->next;
545	delete i;	589	delete i;
546		590
547	i = next;	591	i = next;
548	}	592	}
549		593
550	op->key_values = 0;	594	op->key_values = 0;
551	}	595	}
552		596
553	void object::clear ()
554	{
555	attachable_base::clear ();
556
557	free_key_values (this);
558
559	clear_owner (this);
560
561	name = 0;
562	name_pl = 0;
563	title = 0;
564	race = 0;
565	slaying = 0;
566	skill = 0;
567	msg = 0;
568	lore = 0;
569	custom_name = 0;
570	materialname = 0;
571
572	memset (static_cast < object_pod * >(this), 0, sizeof (object_pod));
573
574	SET_FLAG (this, FLAG_REMOVED);
575	}
576
577	void object::clone (object *destination)
578	{
579	*(object_copy *) destination = *this;
580	*(object_pod *) destination = *this;
581
582	if (self || cb)
583	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
584	}
585
586	/*	597	/*
587	* clear_object() frees everything allocated by an object, and also
588	* clears all variables and flags to default settings.
589	*/
590
591	void
592	clear_object (object *op)
593	{
594	op->clear ();
595
596	op->contr = NULL;
597	op->below = NULL;
598	op->above = NULL;
599	op->inv = NULL;
600	op->container = NULL;
601	op->env = NULL;
602	op->more = NULL;
603	op->head = NULL;
604	op->map = NULL;
605	op->refcount = 0;
606	op->active_next = NULL;
607	op->active_prev = NULL;
608	/* What is not cleared is next, prev, and count */
609
610	op->expmul = 1.0;
611	op->face = blank_face;
612	op->attacked_by_count = -1;
613
614	if (settings.casting_time)
615	op->casting_time = -1;
616	}
617
618	/*
619	* copy object first frees everything allocated by the second object,	598	* copy_to first frees everything allocated by the dst object,
620	* and then copies the contends of the first object into the second	599	* and then copies the contents of itself into the second
621	* object, allocating what needs to be allocated. Basically, any	600	* object, allocating what needs to be allocated. Basically, any
622	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	601	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
623	* if the first object is freed, the pointers in the new object	602	* if the first object is freed, the pointers in the new object
624	* will point at garbage.	603	* will point at garbage.
625	*/	604	*/
626
627	void	605	void
628	copy_object (object *op2, object *op)	606	object::copy_to (object *dst)
629	{	607	{
630	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	608	dst->remove ();
631	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	609	*(object_copy *)dst = *this;
632		610	dst->flag [FLAG_REMOVED] = true;
633	op2->clone (op);
634
635	if (is_freed)
636	SET_FLAG (op, FLAG_FREED);
637	if (is_removed)
638	SET_FLAG (op, FLAG_REMOVED);
639
640	if (op2->speed < 0)
641	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
642		611
643	/* Copy over key_values, if any. */	612	/* Copy over key_values, if any. */
644	if (op2->key_values)	613	if (key_values)
645	{	614	{
646	key_value *tail = 0;	615	key_value *tail = 0;
647	key_value *i;
648
649	op->key_values = 0;	616	dst->key_values = 0;
650		617
651	for (i = op2->key_values; i; i = i->next)	618	for (key_value *i = key_values; i; i = i->next)
652	{	619	{
653	key_value *new_link = new key_value;	620	key_value *new_link = new key_value;
654		621
655	new_link->next = 0;	622	new_link->next = 0;
656	new_link->key = i->key;	623	new_link->key = i->key;
657	new_link->value = i->value;	624	new_link->value = i->value;
658		625
659	/* Try and be clever here, too. */	626	/* Try and be clever here, too. */
660	if (!op->key_values)	627	if (!dst->key_values)
661	{	628	{
662	op->key_values = new_link;	629	dst->key_values = new_link;
663	tail = new_link;	630	tail = new_link;
664	}	631	}
665	else	632	else
666	{	633	{
667	tail->next = new_link;	634	tail->next = new_link;
668	tail = new_link;	635	tail = new_link;
669	}	636	}
670	}	637	}
671	}	638	}
672		639
673	update_ob_speed (op);	640	if (speed < 0)
		641	dst->speed_left -= rndm ();
		642
		643	dst->set_speed (dst->speed);
		644	}
		645
		646	void
		647	object::instantiate ()
		648	{
		649	if (!uuid.seq) // HACK
		650	uuid = UUID::gen ();
		651
		652	speed_left = -0.1f;
		653	/* copy the body_info to the body_used - this is only really
		654	* need for monsters, but doesn't hurt to do it for everything.
		655	* by doing so, when a monster is created, it has good starting
		656	* values for the body_used info, so when items are created
		657	* for it, they can be properly equipped.
		658	*/
		659	for (int i = NUM_BODY_LOCATIONS; i--; )
		660	slot[i].used = slot[i].info;
		661
		662	attachable::instantiate ();
		663	}
		664
		665	object *
		666	object::clone ()
		667	{
		668	object *neu = create ();
		669	copy_to (neu);
		670	neu->map = map; // not copied by copy_to
		671	return neu;
674	}	672	}
675		673
676	/*	674	/*
677	* If an object with the IS_TURNABLE() flag needs to be turned due	675	* If an object with the IS_TURNABLE() flag needs to be turned due
678	* to the closest player being on the other side, this function can	676	* to the closest player being on the other side, this function can
679	* be called to update the face variable, _and_ how it looks on the map.	677	* be called to update the face variable, _and_ how it looks on the map.
680	*/	678	*/
681
682	void	679	void
683	update_turn_face (object *op)	680	update_turn_face (object *op)
684	{	681	{
685	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	682	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
686	return;	683	return;
		684
687	SET_ANIMATION (op, op->direction);	685	SET_ANIMATION (op, op->direction);
688	update_object (op, UP_OBJ_FACE);	686	update_object (op, UP_OBJ_FACE);
689	}	687	}
690		688
691	/*	689	/*
692	* Updates the speed of an object. If the speed changes from 0 to another	690	* Updates the speed of an object. If the speed changes from 0 to another
693	* value, or vice versa, then add/remove the object from the active list.	691	* value, or vice versa, then add/remove the object from the active list.
694	* This function needs to be called whenever the speed of an object changes.	692	* This function needs to be called whenever the speed of an object changes.
695	*/	693	*/
696
697	void	694	void
698	update_ob_speed (object *op)	695	object::set_speed (float speed)
699	{	696	{
700	extern int arch_init;	697	if (flag [FLAG_FREED] && speed)
701
702	/* No reason putting the archetypes objects on the speed list,
703	* since they never really need to be updated.
704	*/
705
706	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
707	{	698	{
708	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	699	LOG (llevError, "Object %s is freed but has speed.\n", &name);
709	#ifdef MANY_CORES
710	abort ();
711	#else
712	op->speed = 0;	700	speed = 0;
713	#endif
714	}
715	if (arch_init)
716	{	701	}
717	return;
718	}
719	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
720	{
721	/* If already on active list, don't do anything */
722	if (op->active_next || op->active_prev || op == active_objects)
723	return;
724		702
725	/* process_events() expects us to insert the object at the beginning	703	this->speed = speed;
726	* of the list. */	704
727	op->active_next = active_objects;	705	if (has_active_speed ())
728	if (op->active_next != NULL)	706	activate ();
729	op->active_next->active_prev = op;
730	active_objects = op;
731	}
732	else	707	else
733	{	708	deactivate ();
734	/* If not on the active list, nothing needs to be done */
735	if (!op->active_next && !op->active_prev && op != active_objects)
736	return;
737
738	if (op->active_prev == NULL)
739	{
740	active_objects = op->active_next;
741	if (op->active_next != NULL)
742	op->active_next->active_prev = NULL;
743	}
744	else
745	{
746	op->active_prev->active_next = op->active_next;
747	if (op->active_next)
748	op->active_next->active_prev = op->active_prev;
749	}
750	op->active_next = NULL;
751	op->active_prev = NULL;
752	}
753	}	709	}
754		710
755	/* This function removes object 'op' from the list of active
756	* objects.
757	* This should only be used for style maps or other such
758	* reference maps where you don't want an object that isn't
759	* in play chewing up cpu time getting processed.
760	* The reverse of this is to call update_ob_speed, which
761	* will do the right thing based on the speed of the object.
762	*/
763	void
764	remove_from_active_list (object *op)
765	{
766	/* If not on the active list, nothing needs to be done */
767	if (!op->active_next && !op->active_prev && op != active_objects)
768	return;
769
770	if (op->active_prev == NULL)
771	{
772	active_objects = op->active_next;
773	if (op->active_next != NULL)
774	op->active_next->active_prev = NULL;
775	}
776	else
777	{
778	op->active_prev->active_next = op->active_next;
779	if (op->active_next)
780	op->active_next->active_prev = op->active_prev;
781	}
782	op->active_next = NULL;
783	op->active_prev = NULL;
784	}
785
786	/*	711	/*
787	* update_object() updates the array which represents the map.	712	* update_object() updates the the map.
788	* It takes into account invisible objects (and represent squares covered	713	* It takes into account invisible objects (and represent squares covered
789	* by invisible objects by whatever is below them (unless it's another	714	* by invisible objects by whatever is below them (unless it's another
790	* invisible object, etc...)	715	* invisible object, etc...)
791	* If the object being updated is beneath a player, the look-window	716	* If the object being updated is beneath a player, the look-window
792	* of that player is updated (this might be a suboptimal way of	717	* of that player is updated (this might be a suboptimal way of
793	* updating that window, though, since update_object() is called _often_)	718	* updating that window, though, since update_object() is called _often_)
794	*	719	*
795	* action is a hint of what the caller believes need to be done.	720	* action is a hint of what the caller believes need to be done.
796	* For example, if the only thing that has changed is the face (due to
797	* an animation), we don't need to call update_position until that actually
798	* comes into view of a player. OTOH, many other things, like addition/removal
799	* of walls or living creatures may need us to update the flags now.
800	* current action are:	721	* current action are:
801	* UP_OBJ_INSERT: op was inserted	722	* UP_OBJ_INSERT: op was inserted
802	* UP_OBJ_REMOVE: op was removed	723	* UP_OBJ_REMOVE: op was removed
803	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	724	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
804	* as that is easier than trying to look at what may have changed.	725	* as that is easier than trying to look at what may have changed.
805	* UP_OBJ_FACE: only the objects face has changed.	726	* UP_OBJ_FACE: only the objects face has changed.
806	*/	727	*/
807
808	void	728	void
809	update_object (object *op, int action)	729	update_object (object *op, int action)
810	{	730	{
811	int update_now = 0, flags;	731	if (!op)
812	MoveType move_on, move_off, move_block, move_slow;
813
814	if (op == NULL)
815	{	732	{
816	/* this should never happen */	733	/* this should never happen */
817	LOG (llevDebug, "update_object() called for NULL object.\n");	734	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
818	return;	735	return;
819	}	736	}
820		737
821	if (op->env != NULL)	738	if (!op->is_on_map ())
822	{	739	{
823	/* Animation is currently handled by client, so nothing	740	/* Animation is currently handled by client, so nothing
824	* to do in this case.	741	* to do in this case.
825	*/	742	*/
826	return;	743	return;
827	}	744	}
828		745
829	/* If the map is saving, don't do anything as everything is
830	* going to get freed anyways.
831	*/
832	if (!op->map || op->map->in_memory == MAP_SAVING)
833	return;
834
835	/* make sure the object is within map boundaries */	746	/* make sure the object is within map boundaries */
836	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	747	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
837	{	748	{
838	LOG (llevError, "update_object() called for object out of map!\n");	749	LOG (llevError, "update_object() called for object out of map!\n");
839	#ifdef MANY_CORES	750	#ifdef MANY_CORES
840	abort ();	751	abort ();
841	#endif	752	#endif
842	return;	753	return;
843	}	754	}
844		755
845	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	756	mapspace &m = op->ms ();
846	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
847	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
848	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
849	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
850	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
851		757
		758	if (!(m.flags_ & P_UPTODATE))
		759	/* nop */;
852	if (action == UP_OBJ_INSERT)	760	else if (action == UP_OBJ_INSERT)
853	{	761	{
		762	// this is likely overkill, TODO: revisit (schmorp)
854	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	763	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
855	update_now = 1;
856
857	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	764	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
858	update_now = 1;	765	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
859		766	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		767	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
860	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	768	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
861	update_now = 1;
862
863	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
864	update_now = 1;
865
866	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
867	update_now = 1;
868
869	if ((move_on | op->move_on) != move_on)	769	|| (m.move_on | op->move_on ) != m.move_on
870	update_now = 1;
871
872	if ((move_off | op->move_off) != move_off)	770	|| (m.move_off | op->move_off ) != m.move_off
873	update_now = 1;	771	|| (m.move_slow | op->move_slow) != m.move_slow
874
875	/* This isn't perfect, but I don't expect a lot of objects to	772	/* This isn't perfect, but I don't expect a lot of objects to
876	* to have move_allow right now.	773	* to have move_allow right now.
877	*/	774	*/
878	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	775	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
879	update_now = 1;	776	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
880		777	m.flags_ = 0;
881	if ((move_slow | op->move_slow) != move_slow)
882	update_now = 1;
883	}	778	}
884	/* if the object is being removed, we can't make intelligent	779	/* if the object is being removed, we can't make intelligent
885	* decisions, because remove_ob can't really pass the object	780	* decisions, because remove_ob can't really pass the object
886	* that is being removed.	781	* that is being removed.
887	*/	782	*/
888	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	783	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
889	update_now = 1;	784	m.flags_ = 0;
890	else if (action == UP_OBJ_FACE)	785	else if (action == UP_OBJ_FACE)
891	/* Nothing to do for that case */;	786	/* Nothing to do for that case */ ;
892	else	787	else
893	LOG (llevError, "update_object called with invalid action: %d\n", action);	788	LOG (llevError, "update_object called with invalid action: %d\n", action);
894		789
895	if (update_now)
896	{
897	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
898	update_position (op->map, op->x, op->y);
899	}
900
901	if (op->more != NULL)	790	if (op->more)
902	update_object (op->more, action);	791	update_object (op->more, action);
903	}
904
905	static unordered_vector<object *> mortals;
906	static std::vector<object *> freed;
907
908	void object::free_mortals ()
909	{
910	for (unordered_vector<object *>::iterator i = mortals.begin (); i != mortals.end (); )
911	if (!(*i)->refcount)
912	{
913	freed.push_back (*i);
914	mortals.erase (i);
915	}
916	else
917	++i;
918	}	792	}
919		793
920	object::object ()	794	object::object ()
921	{	795	{
922	SET_FLAG (this, FLAG_REMOVED);	796	SET_FLAG (this, FLAG_REMOVED);
923		797
924	expmul = 1.0;	798	expmul = 1.0;
925	face = blank_face;	799	face = blank_face;
926	attacked_by_count = -1;
927	}	800	}
928		801
929	object::~object ()	802	object::~object ()
930	{	803	{
		804	unlink ();
		805
931	free_key_values (this);	806	free_key_values (this);
932	}	807	}
933		808
		809	static int object_count;
		810
934	void object::link ()	811	void object::link ()
935	{	812	{
		813	assert (!index);//D
		814	uuid = UUID::gen ();
936	count = ++ob_count;	815	count = ++object_count;
937		816
938	prev = 0;	817	refcnt_inc ();
939	next = objects;	818	objects.insert (this);
940
941	if (objects)
942	objects->prev = this;
943
944	objects = this;
945	}	819	}
946		820
947	void object::unlink ()	821	void object::unlink ()
948	{	822	{
949	count = 0;
950
951	/* Remove this object from the list of used objects */
952	if (prev)
953	{
954	prev->next = next;
955	prev = 0;
956	}
957
958	if (next)	823	if (!index)
959	{	824	return;
960	next->prev = prev;	825
961	next = 0;	826	objects.erase (this);
		827	refcnt_dec ();
		828	}
		829
		830	void
		831	object::activate ()
		832	{
		833	/* If already on active list, don't do anything */
		834	if (active)
		835	return;
		836
		837	if (has_active_speed ())
		838	actives.insert (this);
		839	}
		840
		841	void
		842	object::activate_recursive ()
		843	{
		844	activate ();
		845
		846	for (object *op = inv; op; op = op->below)
		847	op->activate_recursive ();
		848	}
		849
		850	/* This function removes object 'op' from the list of active
		851	* objects.
		852	* This should only be used for style maps or other such
		853	* reference maps where you don't want an object that isn't
		854	* in play chewing up cpu time getting processed.
		855	* The reverse of this is to call update_ob_speed, which
		856	* will do the right thing based on the speed of the object.
		857	*/
		858	void
		859	object::deactivate ()
		860	{
		861	/* If not on the active list, nothing needs to be done */
		862	if (!active)
		863	return;
		864
		865	actives.erase (this);
		866	}
		867
		868	void
		869	object::deactivate_recursive ()
		870	{
		871	for (object *op = inv; op; op = op->below)
		872	op->deactivate_recursive ();
		873
		874	deactivate ();
		875	}
		876
		877	void
		878	object::set_flag_inv (int flag, int value)
		879	{
		880	for (object *op = inv; op; op = op->below)
962	}	881	{
		882	op->flag [flag] = value;
		883	op->set_flag_inv (flag, value);
		884	}
		885	}
963		886
964	if (this == objects)	887	/*
965	objects = next;	888	* Remove and free all objects in the inventory of the given object.
		889	* object.c ?
		890	*/
		891	void
		892	object::destroy_inv (bool drop_to_ground)
		893	{
		894	// need to check first, because the checks below might segfault
		895	// as we might be on an invalid mapspace and crossfire code
		896	// is too buggy to ensure that the inventory is empty.
		897	// corollary: if you create arrows etc. with stuff in its inventory,
		898	// cf will crash below with off-map x and y
		899	if (!inv)
		900	return;
		901
		902	/* Only if the space blocks everything do we not process -
		903	* if some form of movement is allowed, let objects
		904	* drop on that space.
		905	*/
		906	if (!drop_to_ground
		907	|| !map
		908	|| map->in_memory != MAP_ACTIVE
		909	|| map->nodrop
		910	|| ms ().move_block == MOVE_ALL)
		911	{
		912	while (inv)
		913	{
		914	inv->destroy_inv (false);
		915	inv->destroy ();
		916	}
		917	}
		918	else
		919	{ /* Put objects in inventory onto this space */
		920	while (inv)
		921	{
		922	object *op = inv;
		923
		924	if (op->flag [FLAG_STARTEQUIP]
		925	|| op->flag [FLAG_NO_DROP]
		926	|| op->type == RUNE
		927	|| op->type == TRAP
		928	|| op->flag [FLAG_IS_A_TEMPLATE]
		929	|| op->flag [FLAG_DESTROY_ON_DEATH])
		930	op->destroy (true);
		931	else
		932	map->insert (op, x, y);
		933	}
		934	}
966	}	935	}
967		936
968	object *object::create ()	937	object *object::create ()
969	{	938	{
970	object *op;
971
972	if (freed.empty ())
973	op = new object;	939	object *op = new object;
974	else
975	{
976	// highly annoying, but the only way to get it stable right now
977	op = freed.back (); freed.pop_back ();
978	op->~object ();
979	new ((void *)op) object;
980	}
981
982	op->link ();	940	op->link ();
983	return op;	941	return op;
984	}	942	}
985		943
986	/*	944	static struct freed_map : maptile
987	* free_object() frees everything allocated by an object, removes
988	* it from the list of used objects, and puts it on the list of
989	* free objects. The IS_FREED() flag is set in the object.
990	* The object must have been removed by remove_ob() first for
991	* this function to succeed.
992	*
993	* If free_inventory is set, free inventory as well. Else drop items in
994	* inventory to the ground.
995	*/
996	void object::free (bool free_inventory)
997	{	945	{
998	if (!QUERY_FLAG (this, FLAG_REMOVED))	946	freed_map ()
999	{	947	{
1000	LOG (llevDebug, "Free object called with non removed object\n");	948	path = "<freed objects map>";
1001	dump_object (this);	949	name = "/internal/freed_objects_map";
1002	#ifdef MANY_CORES	950	width = 3;
1003	abort ();	951	height = 3;
1004	#endif	952	nodrop = 1;
		953
		954	alloc ();
		955	in_memory = MAP_ACTIVE;
1005	}	956	}
1006		957
1007	if (QUERY_FLAG (this, FLAG_FRIENDLY))	958	~freed_map ()
1008	{	959	{
1009	LOG (llevMonster, "Warning: tried to free friendly object.\n");	960	destroy ();
		961	}
		962	} freed_map; // freed objects are moved here to avoid crashes
		963
		964	void
		965	object::do_destroy ()
		966	{
		967	if (flag [FLAG_IS_LINKED])
		968	remove_button_link (this);
		969
		970	if (flag [FLAG_FRIENDLY])
1010	remove_friendly_object (this);	971	remove_friendly_object (this);
		972
		973	remove ();
		974
		975	attachable::do_destroy ();
		976
		977	deactivate ();
		978	unlink ();
		979
		980	flag [FLAG_FREED] = 1;
		981
		982	// hack to ensure that freed objects still have a valid map
		983	map = &freed_map;
		984	x = 1;
		985	y = 1;
		986
		987	if (more)
1011	}	988	{
1012		989	more->destroy ();
1013	if (QUERY_FLAG (this, FLAG_FREED))	990	more = 0;
1014	{	991	}
1015	dump_object (this);	992
1016	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	993	head = 0;
		994
		995	// clear those pointers that likely might cause circular references
		996	owner = 0;
		997	enemy = 0;
		998	attacked_by = 0;
		999	current_weapon = 0;
		1000	}
		1001
		1002	void
		1003	object::destroy (bool destroy_inventory)
		1004	{
		1005	if (destroyed ())
		1006	return;
		1007
		1008	if (!is_head () && !head->destroyed ())
		1009	{
		1010	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
		1011	head->destroy (destroy_inventory);
1017	return;	1012	return;
1018	}	1013	}
1019		1014
1020	if (more)	1015	destroy_inv (!destroy_inventory);
1021	{
1022	more->free (free_inventory);
1023	more = 0;
1024	}
1025		1016
1026	if (inv)	1017	if (is_head ())
1027	{	1018	if (sound_destroy)
1028	/* Only if the space blocks everything do we not process -	1019	play_sound (sound_destroy);
1029	* if some form of movement is allowed, let objects	1020	else if (flag [FLAG_MONSTER])
1030	* drop on that space.	1021	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
1031	*/
1032	if (free_inventory || !map || map->in_memory != MAP_IN_MEMORY || (GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL))
1033	{
1034	object *
1035	op = inv;
1036		1022
1037	while (op)	1023	attachable::destroy ();
1038	{
1039	object *
1040	tmp = op->below;
1041
1042	remove_ob (op);
1043	op->free (free_inventory);
1044	op = tmp;
1045	}
1046	}
1047	else
1048	{ /* Put objects in inventory onto this space */
1049	object *
1050	op = inv;
1051
1052	while (op)
1053	{
1054	object *
1055	tmp = op->below;
1056
1057	remove_ob (op);
1058
1059	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
1060	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
1061	free_object (op);
1062	else
1063	{
1064	op->x = x;
1065	op->y = y;
1066	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
1067	}
1068
1069	op = tmp;
1070	}
1071	}
1072	}
1073
1074	clear_owner (this);
1075
1076	/* Remove object from the active list */
1077	speed = 0;
1078	update_ob_speed (this);
1079
1080	unlink ();
1081
1082	SET_FLAG (this, FLAG_FREED);
1083
1084	mortals.push_back (this);
1085	}	1024	}
1086		1025
1087	/*	1026	/* op->remove ():
1088	* sub_weight() recursively (outwards) subtracts a number from the
1089	* weight of an object (and what is carried by it's environment(s)).
1090	*/
1091
1092	void
1093	sub_weight (object *op, signed long weight)
1094	{
1095	while (op != NULL)
1096	{
1097	if (op->type == CONTAINER)
1098	{
1099	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1100	}
1101	op->carrying -= weight;
1102	op = op->env;
1103	}
1104	}
1105
1106	/* remove_ob(op):
1107	* This function removes the object op from the linked list of objects	1027	* This function removes the object op from the linked list of objects
1108	* which it is currently tied to. When this function is done, the	1028	* which it is currently tied to. When this function is done, the
1109	* object will have no environment. If the object previously had an	1029	* object will have no environment. If the object previously had an
1110	* environment, the x and y coordinates will be updated to	1030	* environment, the x and y coordinates will be updated to
1111	* the previous environment.	1031	* the previous environment.
1112	* Beware: This function is called from the editor as well!
1113	*/	1032	*/
1114
1115	void	1033	void
1116	remove_ob (object *op)	1034	object::do_remove ()
1117	{	1035	{
1118	object *tmp, *last = NULL;	1036	object *tmp, *last = 0;
1119	object *otmp;	1037	object *otmp;
1120		1038
1121	tag_t tag;	1039	if (flag [FLAG_REMOVED])
1122	int check_walk_off;	1040	return;
1123	mapstruct *m;
1124		1041
1125	sint16 x, y;	1042	INVOKE_OBJECT (REMOVE, this);
1126		1043
1127	if (QUERY_FLAG (op, FLAG_REMOVED))	1044	flag [FLAG_REMOVED] = true;
1128	{
1129	dump_object (op);
1130	LOG (llevError, "Trying to remove removed object.\n%s\n", errmsg);
1131		1045
1132	/* Changed it to always dump core in this case. As has been learned	1046	if (more)
1133	* in the past, trying to recover from errors almost always	1047	more->remove ();
1134	* make things worse, and this is a real error here - something
1135	* that should not happen.
1136	* Yes, if this was a mission critical app, trying to do something
1137	* to recover may make sense, but that is because failure of the app
1138	* may have other disastrous problems. Cf runs out of a script
1139	* so is easily enough restarted without any real problems.
1140	* MSW 2001-07-01
1141	*/
1142	abort ();
1143	}
1144
1145	if (op->more != NULL)
1146	remove_ob (op->more);
1147
1148	SET_FLAG (op, FLAG_REMOVED);
1149		1048
1150	/*	1049	/*
1151	* In this case, the object to be removed is in someones	1050	* In this case, the object to be removed is in someones
1152	* inventory.	1051	* inventory.
1153	*/	1052	*/
1154	if (op->env != NULL)	1053	if (env)
1155	{	1054	{
1156	if (op->nrof)	1055	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1157	sub_weight (op->env, op->weight * op->nrof);	1056	if (object *pl = visible_to ())
1158	else	1057	esrv_del_item (pl->contr, count);
1159	sub_weight (op->env, op->weight + op->carrying);	1058	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1059
		1060	adjust_weight (env, -total_weight ());
		1061
		1062	*(above ? &above->below : &env->inv) = below;
		1063
		1064	if (below)
		1065	below->above = above;
		1066
		1067	/* we set up values so that it could be inserted into
		1068	* the map, but we don't actually do that - it is up
		1069	* to the caller to decide what we want to do.
		1070	*/
		1071	map = env->map;
		1072	x = env->x;
		1073	y = env->y;
		1074	above = 0;
		1075	below = 0;
		1076	env = 0;
1160		1077
1161	/* NO_FIX_PLAYER is set when a great many changes are being	1078	/* NO_FIX_PLAYER is set when a great many changes are being
1162	* made to players inventory. If set, avoiding the call	1079	* made to players inventory. If set, avoiding the call
1163	* to save cpu time.	1080	* to save cpu time.
1164	*/	1081	*/
1165	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1082	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1166	fix_player (otmp);	1083	otmp->update_stats ();
		1084	}
		1085	else if (map)
		1086	{
		1087	map->dirty = true;
		1088	mapspace &ms = this->ms ();
1167		1089
1168	if (op->above != NULL)	1090	if (object *pl = ms.player ())
		1091	{
		1092	if (type == PLAYER) // this == pl(!)
		1093	{
		1094	// leaving a spot always closes any open container on the ground
		1095	if (container && !container->env)
		1096	// this causes spurious floorbox updates, but it ensures
		1097	// that the CLOSE event is being sent.
		1098	close_container ();
		1099
		1100	--map->players;
		1101	map->touch ();
		1102	}
		1103	else if (pl->container == this)
		1104	{
		1105	// removing a container should close it
		1106	close_container ();
		1107	}
		1108
		1109	esrv_del_item (pl->contr, count);
		1110	}
		1111
		1112	/* link the object above us */
		1113	if (above)
1169	op->above->below = op->below;	1114	above->below = below;
1170	else	1115	else
1171	op->env->inv = op->below;	1116	ms.top = below; /* we were top, set new top */
1172		1117
1173	if (op->below != NULL)
1174	op->below->above = op->above;
1175
1176	/* we set up values so that it could be inserted into
1177	* the map, but we don't actually do that - it is up
1178	* to the caller to decide what we want to do.
1179	*/
1180	op->x = op->env->x, op->y = op->env->y;
1181	op->map = op->env->map;
1182	op->above = NULL, op->below = NULL;
1183	op->env = NULL;
1184	return;
1185	}
1186
1187	/* If we get here, we are removing it from a map */
1188	if (op->map == NULL)
1189	return;
1190
1191	x = op->x;
1192	y = op->y;
1193	m = get_map_from_coord (op->map, &x, &y);
1194
1195	if (!m)
1196	{
1197	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1198	op->map->path, op->x, op->y);
1199	/* in old days, we used to set x and y to 0 and continue.
1200	* it seems if we get into this case, something is probablye
1201	* screwed up and should be fixed.
1202	*/
1203	abort ();
1204	}
1205	if (op->map != m)
1206	{
1207	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1208	op->map->path, m->path, op->x, op->y, x, y);
1209	}
1210
1211	/* Re did the following section of code - it looks like it had
1212	* lots of logic for things we no longer care about
1213	*/
1214
1215	/* link the object above us */
1216	if (op->above)
1217	op->above->below = op->below;
1218	else
1219	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1220
1221	/* Relink the object below us, if there is one */	1118	/* Relink the object below us, if there is one */
1222	if (op->below)	1119	if (below)
1223	op->below->above = op->above;	1120	below->above = above;
1224	else	1121	else
1225	{	1122	ms.bot = above;
1226	/* Nothing below, which means we need to relink map object for this space	1123
1227	* use translated coordinates in case some oddness with map tiling is	1124	above = 0;
1228	* evident	1125	below = 0;
1229	*/	1126
1230	if (GET_MAP_OB (m, x, y) != op)	1127	if (map->in_memory == MAP_SAVING)
		1128	return;
		1129
		1130	int check_walk_off = !flag [FLAG_NO_APPLY];
		1131
		1132	if (object *pl = ms.player ())
1231	{	1133	{
1232	dump_object (op);	1134	if (pl->container == this)
1233	LOG (llevError, "remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n",	1135	/* If a container that the player is currently using somehow gets
1234	errmsg);	1136	* removed (most likely destroyed), update the player view
1235	dump_object (GET_MAP_OB (m, x, y));	1137	* appropriately.
1236	LOG (llevError, "%s\n", errmsg);	1138	*/
		1139	pl->close_container ();
		1140
		1141	//TODO: the floorbox prev/next might need updating
		1142	//esrv_del_item (pl->contr, count);
		1143	//TODO: update floorbox to preserve ordering
		1144	if (pl->contr->ns)
		1145	pl->contr->ns->floorbox_update ();
1237	}	1146	}
1238		1147
1239	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */	1148	for (tmp = ms.bot; tmp; tmp = tmp->above)
1240	}
1241
1242	op->above = NULL;
1243	op->below = NULL;
1244
1245	if (op->map->in_memory == MAP_SAVING)
1246	return;
1247
1248	tag = op->count;
1249	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1250
1251	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1252	{
1253	/* No point updating the players look faces if he is the object
1254	* being removed.
1255	*/
1256
1257	if (tmp->type == PLAYER && tmp != op)
1258	{	1149	{
1259	/* If a container that the player is currently using somehow gets	1150	/* No point updating the players look faces if he is the object
1260	* removed (most likely destroyed), update the player view	1151	* being removed.
1261	* appropriately.
1262	*/	1152	*/
1263	if (tmp->container == op)	1153
		1154	/* See if object moving off should effect something */
		1155	if (check_walk_off
		1156	&& ((move_type & tmp->move_off)
		1157	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1264	{	1158	{
1265	CLEAR_FLAG (op, FLAG_APPLIED);	1159	move_apply (tmp, this, 0);
1266	tmp->container = NULL;	1160
		1161	if (destroyed ())
		1162	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1267	}	1163	}
1268		1164
1269	tmp->contr->socket.update_look = 1;	1165	last = tmp;
1270	}	1166	}
1271	/* See if player moving off should effect something */
1272	if (check_walk_off && ((op->move_type & tmp->move_off) && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1273	{
1274	move_apply (tmp, op, NULL);
1275		1167
1276	if (was_destroyed (op, tag))
1277	{
1278	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name);
1279	}
1280	}
1281
1282	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1283
1284	if (tmp->above == tmp)
1285	tmp->above = NULL;
1286
1287	last = tmp;
1288	}
1289
1290	/* last == NULL of there are no objects on this space */	1168	/* last == NULL if there are no objects on this space */
1291	if (last == NULL)	1169	//TODO: this makes little sense, why only update the topmost object?
1292	{	1170	if (!last)
1293	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1171	map->at (x, y).flags_ = 0;
1294	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1295	* those out anyways, and if there are any flags set right now, they won't
1296	* be correct anyways.
1297	*/
1298	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1299	update_position (op->map, op->x, op->y);
1300	}
1301	else	1172	else
1302	update_object (last, UP_OBJ_REMOVE);	1173	update_object (last, UP_OBJ_REMOVE);
1303		1174
1304	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))	1175	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1305	update_all_los (op->map, op->x, op->y);	1176	update_all_los (map, x, y);
		1177	}
1306	}	1178	}
1307		1179
1308	/*	1180	/*
1309	* merge_ob(op,top):	1181	* merge_ob(op,top):
1310	*	1182	*
1311	* This function goes through all objects below and including top, and	1183	* This function goes through all objects below and including top, and
1312	* merges op to the first matching object.	1184	* merges op to the first matching object.
1313	* If top is NULL, it is calculated.	1185	* If top is NULL, it is calculated.
1314	* Returns pointer to object if it succeded in the merge, otherwise NULL	1186	* Returns pointer to object if it succeded in the merge, otherwise NULL
1315	*/	1187	*/
1316
1317	object *	1188	object *
1318	merge_ob (object *op, object *top)	1189	merge_ob (object *op, object *top)
1319	{	1190	{
1320	if (!op->nrof)	1191	if (!op->nrof)
1321	return 0;	1192	return 0;
1322	if (top == NULL)	1193
		1194	if (!top)
1323	for (top = op; top != NULL && top->above != NULL; top = top->above);	1195	for (top = op; top && top->above; top = top->above)
		1196	;
		1197
1324	for (; top != NULL; top = top->below)	1198	for (; top; top = top->below)
1325	{	1199	if (object::can_merge (op, top))
1326	if (top == op)
1327	continue;
1328	if (CAN_MERGE (op, top))
1329	{	1200	{
1330	top->nrof += op->nrof;	1201	top->nrof += op->nrof;
1331		1202
1332	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1203	if (object *pl = top->visible_to ())
1333	op->weight = 0; /* Don't want any adjustements now */	1204	esrv_update_item (UPD_NROF, pl, top);
1334	remove_ob (op);	1205
1335	free_object (op);	1206	op->weight = 0; // cancel the addition above
		1207	op->carrying = 0; // must be 0 already
		1208
		1209	op->destroy (1);
		1210
1336	return top;	1211	return top;
1337	}	1212	}
1338	}	1213
1339	return NULL;	1214	return 0;
1340	}	1215	}
1341		1216
		1217	void
		1218	object::expand_tail ()
		1219	{
		1220	if (more)
		1221	return;
		1222
		1223	object *prev = this;
		1224
		1225	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1226	{
		1227	object *op = arch_to_object (at);
		1228
		1229	op->name = name;
		1230	op->name_pl = name_pl;
		1231	op->title = title;
		1232
		1233	op->head = this;
		1234	prev->more = op;
		1235
		1236	prev = op;
		1237	}
		1238	}
		1239
1342	/*	1240	/*
1343	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1241	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1344	* job preparing multi-part monsters	1242	* job preparing multi-part monsters.
1345	*/	1243	*/
1346	object *	1244	object *
1347	insert_ob_in_map_at (object *op, mapstruct *m, object *originator, int flag, int x, int y)	1245	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1348	{	1246	{
1349	object *
1350	tmp;
1351
1352	if (op->head)
1353	op = op->head;
1354	for (tmp = op; tmp; tmp = tmp->more)	1247	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1355	{	1248	{
1356	tmp->x = x + tmp->arch->clone.x;	1249	tmp->x = x + tmp->arch->x;
1357	tmp->y = y + tmp->arch->clone.y;	1250	tmp->y = y + tmp->arch->y;
1358	}	1251	}
		1252
1359	return insert_ob_in_map (op, m, originator, flag);	1253	return insert_ob_in_map (op, m, originator, flag);
1360	}	1254	}
1361		1255
1362	/*	1256	/*
1363	* insert_ob_in_map (op, map, originator, flag):	1257	* insert_ob_in_map (op, map, originator, flag):
…		…
1377	* Return value:	1271	* Return value:
1378	* new object if 'op' was merged with other object	1272	* new object if 'op' was merged with other object
1379	* NULL if 'op' was destroyed	1273	* NULL if 'op' was destroyed
1380	* just 'op' otherwise	1274	* just 'op' otherwise
1381	*/	1275	*/
1382
1383	object *	1276	object *
1384	insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1277	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1385	{	1278	{
1386	object *tmp, *top, *floor = NULL;	1279	assert (!op->flag [FLAG_FREED]);
1387	sint16 x, y;
1388		1280
1389	if (QUERY_FLAG (op, FLAG_FREED))	1281	op->remove ();
1390	{
1391	LOG (llevError, "Trying to insert freed object!\n");
1392	return NULL;
1393	}
1394
1395	if (m == NULL)
1396	{
1397	dump_object (op);
1398	LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg);
1399	return op;
1400	}
1401
1402	if (out_of_map (m, op->x, op->y))
1403	{
1404	dump_object (op);
1405	LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg);
1406	#ifdef MANY_CORES
1407	/* Better to catch this here, as otherwise the next use of this object
1408	* is likely to cause a crash. Better to find out where it is getting
1409	* improperly inserted.
1410	*/
1411	abort ();
1412	#endif
1413	return op;
1414	}
1415
1416	if (!QUERY_FLAG (op, FLAG_REMOVED))
1417	{
1418	dump_object (op);
1419	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg);
1420	return op;
1421	}
1422
1423	if (op->more != NULL)
1424	{
1425	/* The part may be on a different map. */
1426
1427	object *more = op->more;
1428
1429	/* We really need the caller to normalize coordinates - if
1430	* we set the map, that doesn't work if the location is within
1431	* a map and this is straddling an edge. So only if coordinate
1432	* is clear wrong do we normalize it.
1433	*/
1434	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1435	more->map = get_map_from_coord (m, &more->x, &more->y);
1436	else if (!more->map)
1437	{
1438	/* For backwards compatibility - when not dealing with tiled maps,
1439	* more->map should always point to the parent.
1440	*/
1441	more->map = m;
1442	}
1443
1444	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1445	{
1446	if (!op->head)
1447	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1448
1449	return NULL;
1450	}
1451	}
1452
1453	CLEAR_FLAG (op, FLAG_REMOVED);
1454		1282
1455	/* Ideally, the caller figures this out. However, it complicates a lot	1283	/* Ideally, the caller figures this out. However, it complicates a lot
1456	* of areas of callers (eg, anything that uses find_free_spot would now	1284	* of areas of callers (eg, anything that uses find_free_spot would now
1457	* need extra work	1285	* need extra work
1458	*/	1286	*/
1459	op->map = get_map_from_coord (m, &op->x, &op->y);	1287	if (!xy_normalise (m, op->x, op->y))
1460	x = op->x;	1288	{
1461	y = op->y;	1289	op->head_ ()->destroy (1);// remove head_ once all tail object destroyers found
		1290	return 0;
		1291	}
		1292
		1293	if (object *more = op->more)
		1294	if (!insert_ob_in_map (more, m, originator, flag))
		1295	return 0;
		1296
		1297	CLEAR_FLAG (op, FLAG_REMOVED);
		1298
		1299	op->map = m;
		1300	mapspace &ms = op->ms ();
1462		1301
1463	/* this has to be done after we translate the coordinates.	1302	/* this has to be done after we translate the coordinates.
1464	*/	1303	*/
1465	if (op->nrof && !(flag & INS_NO_MERGE))	1304	if (op->nrof && !(flag & INS_NO_MERGE))
1466	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1305	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1467	if (CAN_MERGE (op, tmp))	1306	if (object::can_merge (op, tmp))
1468	{	1307	{
		1308	// TODO: we atcually want to update tmp, not op,
		1309	// but some caller surely breaks when we return tmp
		1310	// from here :/
1469	op->nrof += tmp->nrof;	1311	op->nrof += tmp->nrof;
1470	remove_ob (tmp);	1312	tmp->destroy (1);
1471	free_object (tmp);
1472	}	1313	}
1473		1314
1474	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1315	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1475	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1316	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1476		1317
…		…
1489	op->below = originator->below;	1330	op->below = originator->below;
1490		1331
1491	if (op->below)	1332	if (op->below)
1492	op->below->above = op;	1333	op->below->above = op;
1493	else	1334	else
1494	SET_MAP_OB (op->map, op->x, op->y, op);	1335	ms.bot = op;
1495		1336
1496	/* since *below* originator, no need to update top */	1337	/* since *below* originator, no need to update top */
1497	originator->below = op;	1338	originator->below = op;
1498	}	1339	}
1499	else	1340	else
1500	{	1341	{
		1342	object *top, *floor = NULL;
		1343
		1344	top = ms.bot;
		1345
1501	/* If there are other objects, then */	1346	/* If there are other objects, then */
1502	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1347	if (top)
1503	{	1348	{
1504	object *last = NULL;	1349	object *last = 0;
1505		1350
1506	/*	1351	/*
1507	* If there are multiple objects on this space, we do some trickier handling.	1352	* If there are multiple objects on this space, we do some trickier handling.
1508	* We've already dealt with merging if appropriate.	1353	* We've already dealt with merging if appropriate.
1509	* Generally, we want to put the new object on top. But if	1354	* Generally, we want to put the new object on top. But if
…		…
1513	* once we get to them. This reduces the need to traverse over all of	1358	* once we get to them. This reduces the need to traverse over all of
1514	* them when adding another one - this saves quite a bit of cpu time	1359	* them when adding another one - this saves quite a bit of cpu time
1515	* when lots of spells are cast in one area. Currently, it is presumed	1360	* when lots of spells are cast in one area. Currently, it is presumed
1516	* that flying non pickable objects are spell objects.	1361	* that flying non pickable objects are spell objects.
1517	*/	1362	*/
1518		1363	for (top = ms.bot; top; top = top->above)
1519	while (top != NULL)
1520	{	1364	{
1521	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1365	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1522	floor = top;	1366	floor = top;
1523		1367
1524	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1368	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
…		…
1527	top = top->below;	1371	top = top->below;
1528	break;	1372	break;
1529	}	1373	}
1530		1374
1531	last = top;	1375	last = top;
1532	top = top->above;
1533	}	1376	}
1534		1377
1535	/* Don't want top to be NULL, so set it to the last valid object */	1378	/* Don't want top to be NULL, so set it to the last valid object */
1536	top = last;	1379	top = last;
1537		1380
…		…
1539	* looks like instead of lots of conditions here.	1382	* looks like instead of lots of conditions here.
1540	* makes things faster, and effectively the same result.	1383	* makes things faster, and effectively the same result.
1541	*/	1384	*/
1542		1385
1543	/* Have object 'fall below' other objects that block view.	1386	/* Have object 'fall below' other objects that block view.
1544	* Unless those objects are exits, type 66	1387	* Unless those objects are exits.
1545	* If INS_ON_TOP is used, don't do this processing	1388	* If INS_ON_TOP is used, don't do this processing
1546	* Need to find the object that in fact blocks view, otherwise	1389	* Need to find the object that in fact blocks view, otherwise
1547	* stacking is a bit odd.	1390	* stacking is a bit odd.
1548	*/	1391	*/
1549	if (!(flag & INS_ON_TOP) &&	1392	if (!(flag & INS_ON_TOP)
1550	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1393	&& ms.flags () & P_BLOCKSVIEW
		1394	&& (op->face && !faces [op->face].visibility))
1551	{	1395	{
1552	for (last = top; last != floor; last = last->below)	1396	for (last = top; last != floor; last = last->below)
1553	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1397	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1554	break;	1398	break;
		1399
1555	/* Check to see if we found the object that blocks view,	1400	/* Check to see if we found the object that blocks view,
1556	* and make sure we have a below pointer for it so that	1401	* and make sure we have a below pointer for it so that
1557	* we can get inserted below this one, which requires we	1402	* we can get inserted below this one, which requires we
1558	* set top to the object below us.	1403	* set top to the object below us.
1559	*/	1404	*/
1560	if (last && last->below && last != floor)	1405	if (last && last->below && last != floor)
1561	top = last->below;	1406	top = last->below;
1562	}	1407	}
1563	} /* If objects on this space */	1408	} /* If objects on this space */
1564		1409
1565	if (flag & INS_MAP_LOAD)
1566	top = GET_MAP_TOP (op->map, op->x, op->y);
1567
1568	if (flag & INS_ABOVE_FLOOR_ONLY)	1410	if (flag & INS_ABOVE_FLOOR_ONLY)
1569	top = floor;	1411	top = floor;
1570		1412
1571	/* Top is the object that our object (op) is going to get inserted above.	1413	/* Top is the object that our object (op) is going to get inserted above.
1572	*/	1414	*/
1573		1415
1574	/* First object on this space */	1416	/* First object on this space */
1575	if (!top)	1417	if (!top)
1576	{	1418	{
1577	op->above = GET_MAP_OB (op->map, op->x, op->y);	1419	op->above = ms.bot;
1578		1420
1579	if (op->above)	1421	if (op->above)
1580	op->above->below = op;	1422	op->above->below = op;
1581		1423
1582	op->below = NULL;	1424	op->below = 0;
1583	SET_MAP_OB (op->map, op->x, op->y, op);	1425	ms.bot = op;
1584	}	1426	}
1585	else	1427	else
1586	{ /* get inserted into the stack above top */	1428	{ /* get inserted into the stack above top */
1587	op->above = top->above;	1429	op->above = top->above;
1588		1430
…		…
1591		1433
1592	op->below = top;	1434	op->below = top;
1593	top->above = op;	1435	top->above = op;
1594	}	1436	}
1595		1437
1596	if (op->above == NULL)	1438	if (!op->above)
1597	SET_MAP_TOP (op->map, op->x, op->y, op);	1439	ms.top = op;
1598	} /* else not INS_BELOW_ORIGINATOR */	1440	} /* else not INS_BELOW_ORIGINATOR */
1599		1441
1600	if (op->type == PLAYER)	1442	if (op->type == PLAYER)
		1443	{
1601	op->contr->do_los = 1;	1444	op->contr->do_los = 1;
		1445	++op->map->players;
		1446	op->map->touch ();
		1447	}
1602		1448
1603	/* If we have a floor, we know the player, if any, will be above	1449	op->map->dirty = true;
1604	* it, so save a few ticks and start from there.	1450
1605	*/	1451	if (object *pl = ms.player ())
1606	if (!(flag & INS_MAP_LOAD))	1452	//TODO: the floorbox prev/next might need updating
1607	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1453	//esrv_send_item (pl, op);
1608	if (tmp->type == PLAYER)	1454	//TODO: update floorbox to preserve ordering
1609	tmp->contr->socket.update_look = 1;	1455	if (pl->contr->ns)
		1456	pl->contr->ns->floorbox_update ();
1610		1457
1611	/* If this object glows, it may affect lighting conditions that are	1458	/* If this object glows, it may affect lighting conditions that are
1612	* visible to others on this map. But update_all_los is really	1459	* visible to others on this map. But update_all_los is really
1613	* an inefficient way to do this, as it means los for all players	1460	* an inefficient way to do this, as it means los for all players
1614	* on the map will get recalculated. The players could very well	1461	* on the map will get recalculated. The players could very well
1615	* be far away from this change and not affected in any way -	1462	* be far away from this change and not affected in any way -
1616	* this should get redone to only look for players within range,	1463	* this should get redone to only look for players within range,
1617	* or just updating the P_NEED_UPDATE for spaces within this area	1464	* or just updating the P_UPTODATE for spaces within this area
1618	* of effect may be sufficient.	1465	* of effect may be sufficient.
1619	*/	1466	*/
1620	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1467	if (op->map->darkness && (op->glow_radius != 0))
1621	update_all_los (op->map, op->x, op->y);	1468	update_all_los (op->map, op->x, op->y);
1622		1469
1623	/* updates flags (blocked, alive, no magic, etc) for this map space */	1470	/* updates flags (blocked, alive, no magic, etc) for this map space */
1624	update_object (op, UP_OBJ_INSERT);	1471	update_object (op, UP_OBJ_INSERT);
1625		1472
		1473	INVOKE_OBJECT (INSERT, op);
		1474
1626	/* Don't know if moving this to the end will break anything. However,	1475	/* Don't know if moving this to the end will break anything. However,
1627	* we want to have update_look set above before calling this.	1476	* we want to have floorbox_update called before calling this.
1628	*	1477	*
1629	* check_move_on() must be after this because code called from	1478	* check_move_on() must be after this because code called from
1630	* check_move_on() depends on correct map flags (so functions like	1479	* check_move_on() depends on correct map flags (so functions like
1631	* blocked() and wall() work properly), and these flags are updated by	1480	* blocked() and wall() work properly), and these flags are updated by
1632	* update_object().	1481	* update_object().
1633	*/	1482	*/
1634		1483
1635	/* if this is not the head or flag has been passed, don't check walk on status */	1484	/* if this is not the head or flag has been passed, don't check walk on status */
1636	if (!(flag & INS_NO_WALK_ON) && !op->head)	1485	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1637	{	1486	{
1638	if (check_move_on (op, originator))	1487	if (check_move_on (op, originator))
1639	return NULL;	1488	return 0;
1640		1489
1641	/* If we are a multi part object, lets work our way through the check	1490	/* If we are a multi part object, lets work our way through the check
1642	* walk on's.	1491	* walk on's.
1643	*/	1492	*/
1644	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1493	for (object *tmp = op->more; tmp; tmp = tmp->more)
1645	if (check_move_on (tmp, originator))	1494	if (check_move_on (tmp, originator))
1646	return NULL;	1495	return 0;
1647	}	1496	}
1648		1497
1649	return op;	1498	return op;
1650	}	1499	}
1651		1500
1652	/* this function inserts an object in the map, but if it	1501	/* this function inserts an object in the map, but if it
1653	* finds an object of its own type, it'll remove that one first.	1502	* finds an object of its own type, it'll remove that one first.
1654	* op is the object to insert it under: supplies x and the map.	1503	* op is the object to insert it under: supplies x and the map.
1655	*/	1504	*/
1656	void	1505	void
1657	replace_insert_ob_in_map (const char *arch_string, object *op)	1506	replace_insert_ob_in_map (const char *arch_string, object *op)
1658	{	1507	{
1659	object *tmp;
1660	object *tmp1;
1661
1662	/* first search for itself and remove any old instances */	1508	/* first search for itself and remove any old instances */
1663		1509
1664	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1510	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1665	{
1666	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1511	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1667	{	1512	tmp->destroy (1);
1668	remove_ob (tmp);
1669	free_object (tmp);
1670	}
1671	}
1672		1513
1673	tmp1 = arch_to_object (find_archetype (arch_string));	1514	object *tmp = arch_to_object (archetype::find (arch_string));
1674		1515
1675	tmp1->x = op->x;	1516	tmp->x = op->x;
1676	tmp1->y = op->y;	1517	tmp->y = op->y;
		1518
1677	insert_ob_in_map (tmp1, op->map, op, 0);	1519	insert_ob_in_map (tmp, op->map, op, 0);
1678	}	1520	}
1679
1680	/*
1681	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1682	* is returned contains nr objects, and the remaining parts contains
1683	* the rest (or is removed and freed if that number is 0).
1684	* On failure, NULL is returned, and the reason put into the
1685	* global static errmsg array.
1686	*/
1687		1521
1688	object *	1522	object *
1689	get_split_ob (object *orig_ob, uint32 nr)	1523	object::insert_at (object *where, object *originator, int flags)
1690	{	1524	{
1691	object *	1525	if (where->env)
1692	newob;	1526	return where->env->insert (this);
1693	int	1527	else
1694	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1528	return where->map->insert (this, where->x, where->y, originator, flags);
1695
1696	if (orig_ob->nrof < nr)
1697	{
1698	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1699	return NULL;
1700	}
1701	newob = object_create_clone (orig_ob);
1702	if ((orig_ob->nrof -= nr) < 1)
1703	{
1704	if (!is_removed)
1705	remove_ob (orig_ob);
1706	free_object2 (orig_ob, 1);
1707	}
1708	else if (!is_removed)
1709	{
1710	if (orig_ob->env != NULL)
1711	sub_weight (orig_ob->env, orig_ob->weight * nr);
1712	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1713	{
1714	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1715	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1716	return NULL;
1717	}
1718	}
1719	newob->nrof = nr;
1720
1721	return newob;
1722	}	1529	}
1723		1530
1724	/*	1531	/*
1725	* decrease_ob_nr(object, number) decreases a specified number from	1532	* decrease(object, number) decreases a specified number from
1726	* the amount of an object. If the amount reaches 0, the object	1533	* the amount of an object. If the amount reaches 0, the object
1727	* is subsequently removed and freed.	1534	* is subsequently removed and freed.
1728	*	1535	*
1729	* Return value: 'op' if something is left, NULL if the amount reached 0	1536	* Return value: 'op' if something is left, NULL if the amount reached 0
1730	*/	1537	*/
		1538	bool
		1539	object::decrease (sint32 nr)
		1540	{
		1541	if (!nr)
		1542	return true;
1731		1543
		1544	nr = min (nr, nrof);
		1545
		1546	nrof -= nr;
		1547
		1548	if (nrof)
		1549	{
		1550	adjust_weight (env, -weight * nr); // carrying == 0
		1551
		1552	if (object *pl = visible_to ())
		1553	esrv_update_item (UPD_NROF, pl, this);
		1554
		1555	return true;
		1556	}
		1557	else
		1558	{
		1559	destroy (1);
		1560	return false;
		1561	}
		1562	}
		1563
		1564	/*
		1565	* split(ob,nr) splits up ob into two parts. The part which
		1566	* is returned contains nr objects, and the remaining parts contains
		1567	* the rest (or is removed and returned if that number is 0).
		1568	* On failure, NULL is returned.
		1569	*/
1732	object *	1570	object *
1733	decrease_ob_nr (object *op, uint32 i)	1571	object::split (sint32 nr)
1734	{	1572	{
1735	object *	1573	int have = number_of ();
1736	tmp;
1737	player *
1738	pl;
1739		1574
1740	if (i == 0) /* objects with op->nrof require this check */	1575	if (have < nr)
1741	return op;	1576	return 0;
1742		1577	else if (have == nr)
1743	if (i > op->nrof)
1744	i = op->nrof;
1745
1746	if (QUERY_FLAG (op, FLAG_REMOVED))
1747	{
1748	op->nrof -= i;
1749	}	1578	{
1750	else if (op->env != NULL)
1751	{
1752	/* is this object in the players inventory, or sub container
1753	* therein?
1754	*/
1755	tmp = is_player_inv (op->env);
1756	/* nope. Is this a container the player has opened?
1757	* If so, set tmp to that player.
1758	* IMO, searching through all the players will mostly
1759	* likely be quicker than following op->env to the map,
1760	* and then searching the map for a player.
1761	*/
1762	if (!tmp)
1763	{
1764	for (pl = first_player; pl; pl = pl->next)
1765	if (pl->ob->container == op->env)
1766	break;
1767	if (pl)
1768	tmp = pl->ob;
1769	else
1770	tmp = NULL;
1771	}
1772
1773	if (i < op->nrof)
1774	{
1775	sub_weight (op->env, op->weight * i);
1776	op->nrof -= i;
1777	if (tmp)
1778	{
1779	esrv_send_item (tmp, op);
1780	}
1781	}
1782	else
1783	{
1784	remove_ob (op);	1579	remove ();
1785	op->nrof = 0;	1580	return this;
1786	if (tmp)
1787	{
1788	esrv_del_item (tmp->contr, op->count);
1789	}
1790	}
1791	}	1581	}
1792	else	1582	else
1793	{	1583	{
1794	object *	1584	decrease (nr);
1795	above = op->above;
1796		1585
1797	if (i < op->nrof)	1586	object *op = deep_clone ();
1798	{
1799	op->nrof -= i;
1800	}
1801	else
1802	{
1803	remove_ob (op);
1804	op->nrof = 0;	1587	op->nrof = nr;
1805	}
1806	/* Since we just removed op, op->above is null */
1807	for (tmp = above; tmp != NULL; tmp = tmp->above)
1808	if (tmp->type == PLAYER)
1809	{
1810	if (op->nrof)
1811	esrv_send_item (tmp, op);
1812	else
1813	esrv_del_item (tmp->contr, op->count);
1814	}
1815	}
1816
1817	if (op->nrof)
1818	{
1819	return op;	1588	return op;
1820	}	1589	}
1821	else	1590	}
		1591
		1592	object *
		1593	insert_ob_in_ob (object *op, object *where)
		1594	{
		1595	if (!where)
1822	{	1596	{
1823	free_object (op);	1597	char *dump = dump_object (op);
		1598	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1599	free (dump);
1824	return NULL;	1600	return op;
1825	}
1826	}
1827
1828	/*
1829	* add_weight(object, weight) adds the specified weight to an object,
1830	* and also updates how much the environment(s) is/are carrying.
1831	*/
1832
1833	void
1834	add_weight (object *op, signed long weight)
1835	{
1836	while (op != NULL)
1837	{	1601	}
1838	if (op->type == CONTAINER)	1602
1839	{	1603	if (where->head_ () != where)
1840	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1841	}
1842	op->carrying += weight;
1843	op = op->env;
1844	}	1604	{
1845	}	1605	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1606	where = where->head;
		1607	}
1846		1608
		1609	return where->insert (op);
		1610	}
		1611
1847	/*	1612	/*
1848	* insert_ob_in_ob(op,environment):	1613	* env->insert (op)
1849	* This function inserts the object op in the linked list	1614	* This function inserts the object op in the linked list
1850	* inside the object environment.	1615	* inside the object environment.
1851	*	1616	*
1852	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1853	* the inventory at the last position or next to other objects of the same
1854	* type.
1855	* Frank: Now sorted by type, archetype and magic!
1856	*
1857	* The function returns now pointer to inserted item, and return value can	1617	* The function returns now pointer to inserted item, and return value can
1858	* be != op, if items are merged. -Tero	1618	* be != op, if items are merged. -Tero
1859	*/	1619	*/
1860
1861	object *	1620	object *
1862	insert_ob_in_ob (object *op, object *where)	1621	object::insert (object *op)
1863	{	1622	{
1864	object *
1865	tmp, *
1866	otmp;
1867
1868	if (!QUERY_FLAG (op, FLAG_REMOVED))
1869	{
1870	dump_object (op);
1871	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", errmsg);
1872	return op;
1873	}
1874	if (where == NULL)
1875	{
1876	dump_object (op);
1877	LOG (llevError, "Trying to put object in NULL.\n%s\n", errmsg);
1878	return op;
1879	}
1880	if (where->head)
1881	{
1882	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1883	where = where->head;
1884	}
1885	if (op->more)	1623	if (op->more)
1886	{	1624	{
1887	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1625	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1888	return op;	1626	return op;
1889	}	1627	}
1890	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1628
1891	CLEAR_FLAG (op, FLAG_REMOVED);	1629	op->remove ();
		1630
		1631	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1632
1892	if (op->nrof)	1633	if (op->nrof)
1893	{
1894	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1634	for (object *tmp = inv; tmp; tmp = tmp->below)
1895	if (CAN_MERGE (tmp, op))	1635	if (object::can_merge (tmp, op))
1896	{	1636	{
1897	/* return the original object and remove inserted object	1637	/* return the original object and remove inserted object
1898	(client needs the original object) */	1638	(client needs the original object) */
1899	tmp->nrof += op->nrof;	1639	tmp->nrof += op->nrof;
1900	/* Weight handling gets pretty funky. Since we are adding to	1640
1901	* tmp->nrof, we need to increase the weight.	1641	if (object *pl = tmp->visible_to ())
1902	*/	1642	esrv_update_item (UPD_NROF, pl, tmp);
1903	add_weight (where, op->weight * op->nrof);	1643
1904	SET_FLAG (op, FLAG_REMOVED);	1644	adjust_weight (this, op->total_weight ());
1905	free_object (op); /* free the inserted object */	1645
		1646	op->destroy (1);
1906	op = tmp;	1647	op = tmp;
1907	remove_ob (op); /* and fix old object's links */	1648	goto inserted;
1908	CLEAR_FLAG (op, FLAG_REMOVED);
1909	break;
1910	}	1649	}
1911		1650
1912	/* I assume combined objects have no inventory	1651	op->owner = 0; // it's his/hers now. period.
1913	* We add the weight - this object could have just been removed
1914	* (if it was possible to merge). calling remove_ob will subtract
1915	* the weight, so we need to add it in again, since we actually do
1916	* the linking below
1917	*/
1918	add_weight (where, op->weight * op->nrof);
1919	}
1920	else
1921	add_weight (where, (op->weight + op->carrying));
1922
1923	otmp = is_player_inv (where);
1924	if (otmp && otmp->contr != NULL)
1925	{
1926	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1927	fix_player (otmp);
1928	}
1929
1930	op->map = NULL;	1652	op->map = 0;
1931	op->env = where;	1653	op->x = 0;
		1654	op->y = 0;
		1655
1932	op->above = NULL;	1656	op->above = 0;
1933	op->below = NULL;	1657	op->below = inv;
1934	op->x = 0, op->y = 0;	1658	op->env = this;
1935		1659
		1660	if (inv)
		1661	inv->above = op;
		1662
		1663	inv = op;
		1664
		1665	op->flag [FLAG_REMOVED] = 0;
		1666
		1667	if (object *pl = op->visible_to ())
		1668	esrv_send_item (pl, op);
		1669
		1670	adjust_weight (this, op->total_weight ());
		1671
		1672	inserted:
1936	/* reset the light list and los of the players on the map */	1673	/* reset the light list and los of the players on the map */
1937	if ((op->glow_radius != 0) && where->map)	1674	if (op->glow_radius && map && map->darkness)
1938	{	1675	update_all_los (map, x, y);
1939	#ifdef DEBUG_LIGHTS
1940	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1941	#endif /* DEBUG_LIGHTS */
1942	if (MAP_DARKNESS (where->map))
1943	update_all_los (where->map, where->x, where->y);
1944	}
1945		1676
1946	/* Client has no idea of ordering so lets not bother ordering it here.	1677	// if this is a player's inventory, update stats
1947	* It sure simplifies this function...	1678	if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1948	*/	1679	update_stats ();
1949	if (where->inv == NULL)	1680
1950	where->inv = op;	1681	INVOKE_OBJECT (INSERT, this);
1951	else	1682
1952	{
1953	op->below = where->inv;
1954	op->below->above = op;
1955	where->inv = op;
1956	}
1957	return op;	1683	return op;
1958	}	1684	}
1959		1685
1960	/*	1686	/*
1961	* Checks if any objects has a move_type that matches objects	1687	* Checks if any objects has a move_type that matches objects
…		…
1975	*	1701	*
1976	* MSW 2001-07-08: Check all objects on space, not just those below	1702	* MSW 2001-07-08: Check all objects on space, not just those below
1977	* object being inserted. insert_ob_in_map may not put new objects	1703	* object being inserted. insert_ob_in_map may not put new objects
1978	* on top.	1704	* on top.
1979	*/	1705	*/
1980
1981	int	1706	int
1982	check_move_on (object *op, object *originator)	1707	check_move_on (object *op, object *originator)
1983	{	1708	{
1984	object *tmp;	1709	object *tmp;
1985	tag_t tag;
1986	mapstruct *m = op->map;	1710	maptile *m = op->map;
1987	int x = op->x, y = op->y;	1711	int x = op->x, y = op->y;
1988		1712
1989	MoveType move_on, move_slow, move_block;	1713	MoveType move_on, move_slow, move_block;
1990		1714
1991	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1715	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1992	return 0;	1716	return 0;
1993
1994	tag = op->count;
1995		1717
1996	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1718	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1997	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1719	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1998	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1720	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1999		1721
…		…
2015		1737
2016	/* The objects have to be checked from top to bottom.	1738	/* The objects have to be checked from top to bottom.
2017	* Hence, we first go to the top:	1739	* Hence, we first go to the top:
2018	*/	1740	*/
2019		1741
2020	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1742	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
2021	{	1743	{
2022	/* Trim the search when we find the first other spell effect	1744	/* Trim the search when we find the first other spell effect
2023	* this helps performance so that if a space has 50 spell objects,	1745	* this helps performance so that if a space has 50 spell objects,
2024	* we don't need to check all of them.	1746	* we don't need to check all of them.
2025	*/	1747	*/
…		…
2042	{	1764	{
2043	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1765	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2044	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1766	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
2045	{	1767	{
2046		1768
		1769	float
2047	float diff = tmp->move_slow_penalty * FABS (op->speed);	1770	diff = tmp->move_slow_penalty * fabs (op->speed);
2048		1771
2049	if (op->type == PLAYER)	1772	if (op->type == PLAYER)
2050	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1773	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
2051	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1774	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
2052	diff /= 4.0;	1775	diff /= 4.0;
…		…
2059	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1782	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2060	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))	1783	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2061	{	1784	{
2062	move_apply (tmp, op, originator);	1785	move_apply (tmp, op, originator);
2063		1786
2064	if (was_destroyed (op, tag))	1787	if (op->destroyed ())
2065	return 1;	1788	return 1;
2066		1789
2067	/* what the person/creature stepped onto has moved the object	1790	/* what the person/creature stepped onto has moved the object
2068	* someplace new. Don't process any further - if we did,	1791	* someplace new. Don't process any further - if we did,
2069	* have a feeling strange problems would result.	1792	* have a feeling strange problems would result.
…		…
2079	/*	1802	/*
2080	* present_arch(arch, map, x, y) searches for any objects with	1803	* present_arch(arch, map, x, y) searches for any objects with
2081	* a matching archetype at the given map and coordinates.	1804	* a matching archetype at the given map and coordinates.
2082	* The first matching object is returned, or NULL if none.	1805	* The first matching object is returned, or NULL if none.
2083	*/	1806	*/
2084
2085	object *	1807	object *
2086	present_arch (const archetype *at, mapstruct *m, int x, int y)	1808	present_arch (const archetype *at, maptile *m, int x, int y)
2087	{	1809	{
2088	object *
2089	tmp;
2090
2091	if (m == NULL || out_of_map (m, x, y))	1810	if (!m || out_of_map (m, x, y))
2092	{	1811	{
2093	LOG (llevError, "Present_arch called outside map.\n");	1812	LOG (llevError, "Present_arch called outside map.\n");
2094	return NULL;	1813	return NULL;
2095	}	1814	}
2096	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1815
2097	if (tmp->arch == at)	1816	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1817	if (tmp->arch->archname == at->archname)
2098	return tmp;	1818	return tmp;
		1819
2099	return NULL;	1820	return NULL;
2100	}	1821	}
2101		1822
2102	/*	1823	/*
2103	* present(type, map, x, y) searches for any objects with	1824	* present(type, map, x, y) searches for any objects with
2104	* a matching type variable at the given map and coordinates.	1825	* a matching type variable at the given map and coordinates.
2105	* The first matching object is returned, or NULL if none.	1826	* The first matching object is returned, or NULL if none.
2106	*/	1827	*/
2107
2108	object *	1828	object *
2109	present (unsigned char type, mapstruct *m, int x, int y)	1829	present (unsigned char type, maptile *m, int x, int y)
2110	{	1830	{
2111	object *
2112	tmp;
2113
2114	if (out_of_map (m, x, y))	1831	if (out_of_map (m, x, y))
2115	{	1832	{
2116	LOG (llevError, "Present called outside map.\n");	1833	LOG (llevError, "Present called outside map.\n");
2117	return NULL;	1834	return NULL;
2118	}	1835	}
2119	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1836
		1837	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2120	if (tmp->type == type)	1838	if (tmp->type == type)
2121	return tmp;	1839	return tmp;
		1840
2122	return NULL;	1841	return NULL;
2123	}	1842	}
2124		1843
2125	/*	1844	/*
2126	* present_in_ob(type, object) searches for any objects with	1845	* present_in_ob(type, object) searches for any objects with
2127	* a matching type variable in the inventory of the given object.	1846	* a matching type variable in the inventory of the given object.
2128	* The first matching object is returned, or NULL if none.	1847	* The first matching object is returned, or NULL if none.
2129	*/	1848	*/
2130
2131	object *	1849	object *
2132	present_in_ob (unsigned char type, const object *op)	1850	present_in_ob (unsigned char type, const object *op)
2133	{	1851	{
2134	object *
2135	tmp;
2136
2137	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1852	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2138	if (tmp->type == type)	1853	if (tmp->type == type)
2139	return tmp;	1854	return tmp;
		1855
2140	return NULL;	1856	return NULL;
2141	}	1857	}
2142		1858
2143	/*	1859	/*
2144	* present_in_ob (type, str, object) searches for any objects with	1860	* present_in_ob (type, str, object) searches for any objects with
…		…
2152	* str is the string to match against. Note that we match against	1868	* str is the string to match against. Note that we match against
2153	* the object name, not the archetype name. this is so that the	1869	* the object name, not the archetype name. this is so that the
2154	* spell code can use one object type (force), but change it's name	1870	* spell code can use one object type (force), but change it's name
2155	* to be unique.	1871	* to be unique.
2156	*/	1872	*/
2157
2158	object *	1873	object *
2159	present_in_ob_by_name (int type, const char *str, const object *op)	1874	present_in_ob_by_name (int type, const char *str, const object *op)
2160	{	1875	{
2161	object *
2162	tmp;
2163
2164	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1876	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2165	{
2166	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1877	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2167	return tmp;	1878	return tmp;
2168	}	1879
2169	return NULL;	1880	return 0;
2170	}	1881	}
2171		1882
2172	/*	1883	/*
2173	* present_arch_in_ob(archetype, object) searches for any objects with	1884	* present_arch_in_ob(archetype, object) searches for any objects with
2174	* a matching archetype in the inventory of the given object.	1885	* a matching archetype in the inventory of the given object.
2175	* The first matching object is returned, or NULL if none.	1886	* The first matching object is returned, or NULL if none.
2176	*/	1887	*/
2177
2178	object *	1888	object *
2179	present_arch_in_ob (const archetype *at, const object *op)	1889	present_arch_in_ob (const archetype *at, const object *op)
2180	{	1890	{
2181	object *
2182	tmp;
2183
2184	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1891	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2185	if (tmp->arch == at)	1892	if (tmp->arch->archname == at->archname)
2186	return tmp;	1893	return tmp;
		1894
2187	return NULL;	1895	return NULL;
2188	}	1896	}
2189		1897
2190	/*	1898	/*
2191	* activate recursively a flag on an object inventory	1899	* activate recursively a flag on an object inventory
2192	*/	1900	*/
2193	void	1901	void
2194	flag_inv (object *op, int flag)	1902	flag_inv (object *op, int flag)
2195	{	1903	{
2196	object *
2197	tmp;
2198
2199	if (op->inv)
2200	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1904	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2201	{	1905	{
2202	SET_FLAG (tmp, flag);	1906	SET_FLAG (tmp, flag);
2203	flag_inv (tmp, flag);	1907	flag_inv (tmp, flag);
2204	}	1908	}
2205	} /*	1909	}
		1910
		1911	/*
2206	* desactivate recursively a flag on an object inventory	1912	* deactivate recursively a flag on an object inventory
2207	*/	1913	*/
2208	void	1914	void
2209	unflag_inv (object *op, int flag)	1915	unflag_inv (object *op, int flag)
2210	{	1916	{
2211	object *
2212	tmp;
2213
2214	if (op->inv)
2215	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1917	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2216	{	1918	{
2217	CLEAR_FLAG (tmp, flag);	1919	CLEAR_FLAG (tmp, flag);
2218	unflag_inv (tmp, flag);	1920	unflag_inv (tmp, flag);
2219	}	1921	}
2220	}
2221
2222	/*
2223	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2224	* all it's inventory (recursively).
2225	* If checksums are used, a player will get set_cheat called for
2226	* him/her-self and all object carried by a call to this function.
2227	*/
2228
2229	void
2230	set_cheat (object *op)
2231	{
2232	SET_FLAG (op, FLAG_WAS_WIZ);
2233	flag_inv (op, FLAG_WAS_WIZ);
2234	}	1922	}
2235		1923
2236	/*	1924	/*
2237	* find_free_spot(object, map, x, y, start, stop) will search for	1925	* find_free_spot(object, map, x, y, start, stop) will search for
2238	* a spot at the given map and coordinates which will be able to contain	1926	* a spot at the given map and coordinates which will be able to contain
…		…
2240	* to search (see the freearr_x/y[] definition).	1928	* to search (see the freearr_x/y[] definition).
2241	* It returns a random choice among the alternatives found.	1929	* It returns a random choice among the alternatives found.
2242	* start and stop are where to start relative to the free_arr array (1,9	1930	* start and stop are where to start relative to the free_arr array (1,9
2243	* does all 4 immediate directions). This returns the index into the	1931	* does all 4 immediate directions). This returns the index into the
2244	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1932	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2245	* Note - this only checks to see if there is space for the head of the
2246	* object - if it is a multispace object, this should be called for all
2247	* pieces.
2248	* Note2: This function does correctly handle tiled maps, but does not	1933	* Note: This function does correctly handle tiled maps, but does not
2249	* inform the caller. However, insert_ob_in_map will update as	1934	* inform the caller. However, insert_ob_in_map will update as
2250	* necessary, so the caller shouldn't need to do any special work.	1935	* necessary, so the caller shouldn't need to do any special work.
2251	* Note - updated to take an object instead of archetype - this is necessary	1936	* Note - updated to take an object instead of archetype - this is necessary
2252	* because arch_blocked (now ob_blocked) needs to know the movement type	1937	* because arch_blocked (now ob_blocked) needs to know the movement type
2253	* to know if the space in question will block the object. We can't use	1938	* to know if the space in question will block the object. We can't use
2254	* the archetype because that isn't correct if the monster has been	1939	* the archetype because that isn't correct if the monster has been
2255	* customized, changed states, etc.	1940	* customized, changed states, etc.
2256	*/	1941	*/
2257
2258	int	1942	int
2259	find_free_spot (const object *ob, mapstruct *m, int x, int y, int start, int stop)	1943	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2260	{	1944	{
2261	int
2262	i,
2263	index = 0, flag;
2264	static int
2265	altern[SIZEOFFREE];	1945	int altern[SIZEOFFREE];
		1946	int index = 0, flag;
2266		1947
2267	for (i = start; i < stop; i++)	1948	for (int i = start; i < stop; i++)
2268	{	1949	{
2269	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1950	mapxy pos (m, x, y); pos.move (i);
2270	if (!flag)	1951
		1952	if (!pos.normalise ())
		1953	continue;
		1954
		1955	mapspace &ms = *pos;
		1956
		1957	if (ms.flags () & P_IS_ALIVE)
		1958	continue;
		1959
		1960	/* However, often
		1961	* ob doesn't have any move type (when used to place exits)
		1962	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1963	*/
		1964	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1965	{
2271	altern[index++] = i;	1966	altern [index++] = i;
		1967	continue;
		1968	}
2272		1969
2273	/* Basically, if we find a wall on a space, we cut down the search size.	1970	/* Basically, if we find a wall on a space, we cut down the search size.
2274	* In this way, we won't return spaces that are on another side of a wall.	1971	* In this way, we won't return spaces that are on another side of a wall.
2275	* This mostly work, but it cuts down the search size in all directions -	1972	* This mostly work, but it cuts down the search size in all directions -
2276	* if the space being examined only has a wall to the north and empty	1973	* if the space being examined only has a wall to the north and empty
2277	* spaces in all the other directions, this will reduce the search space	1974	* spaces in all the other directions, this will reduce the search space
2278	* to only the spaces immediately surrounding the target area, and	1975	* to only the spaces immediately surrounding the target area, and
2279	* won't look 2 spaces south of the target space.	1976	* won't look 2 spaces south of the target space.
2280	*/	1977	*/
2281	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	1978	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1979	{
2282	stop = maxfree[i];	1980	stop = maxfree[i];
		1981	continue;
		1982	}
		1983
		1984	/* Note it is intentional that we check ob - the movement type of the
		1985	* head of the object should correspond for the entire object.
		1986	*/
		1987	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1988	continue;
		1989
		1990	if (ob->blocked (m, pos.x, pos.y))
		1991	continue;
		1992
		1993	altern [index++] = i;
2283	}	1994	}
		1995
2284	if (!index)	1996	if (!index)
2285	return -1;	1997	return -1;
		1998
2286	return altern[RANDOM () % index];	1999	return altern [rndm (index)];
2287	}	2000	}
2288		2001
2289	/*	2002	/*
2290	* find_first_free_spot(archetype, mapstruct, x, y) works like	2003	* find_first_free_spot(archetype, maptile, x, y) works like
2291	* find_free_spot(), but it will search max number of squares.	2004	* find_free_spot(), but it will search max number of squares.
2292	* But it will return the first available spot, not a random choice.	2005	* But it will return the first available spot, not a random choice.
2293	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2006	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2294	*/	2007	*/
2295
2296	int	2008	int
2297	find_first_free_spot (const object *ob, mapstruct *m, int x, int y)	2009	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2298	{	2010	{
2299	int
2300	i;
2301
2302	for (i = 0; i < SIZEOFFREE; i++)	2011	for (int i = 0; i < SIZEOFFREE; i++)
2303	{
2304	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2012	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2305	return i;	2013	return i;
2306	}	2014
2307	return -1;	2015	return -1;
2308	}	2016	}
2309		2017
2310	/*	2018	/*
2311	* The function permute(arr, begin, end) randomly reorders the array	2019	* The function permute(arr, begin, end) randomly reorders the array
2312	* arr[begin..end-1].	2020	* arr[begin..end-1].
		2021	* now uses a fisher-yates shuffle, old permute was broken
2313	*/	2022	*/
2314	static void	2023	static void
2315	permute (int *arr, int begin, int end)	2024	permute (int *arr, int begin, int end)
2316	{	2025	{
2317	int	2026	arr += begin;
2318	i,
2319	j,
2320	tmp,
2321	len;
2322
2323	len = end - begin;	2027	end -= begin;
2324	for (i = begin; i < end; i++)
2325	{
2326	j = begin + RANDOM () % len;
2327		2028
2328	tmp = arr[i];	2029	while (--end)
2329	arr[i] = arr[j];	2030	swap (arr [end], arr [rndm (end + 1)]);
2330	arr[j] = tmp;
2331	}
2332	}	2031	}
2333		2032
2334	/* new function to make monster searching more efficient, and effective!	2033	/* new function to make monster searching more efficient, and effective!
2335	* This basically returns a randomized array (in the passed pointer) of	2034	* This basically returns a randomized array (in the passed pointer) of
2336	* the spaces to find monsters. In this way, it won't always look for	2035	* the spaces to find monsters. In this way, it won't always look for
…		…
2339	* the 3x3 area will be searched, just not in a predictable order.	2038	* the 3x3 area will be searched, just not in a predictable order.
2340	*/	2039	*/
2341	void	2040	void
2342	get_search_arr (int *search_arr)	2041	get_search_arr (int *search_arr)
2343	{	2042	{
2344	int	2043	int i;
2345	i;
2346		2044
2347	for (i = 0; i < SIZEOFFREE; i++)	2045	for (i = 0; i < SIZEOFFREE; i++)
2348	{
2349	search_arr[i] = i;	2046	search_arr[i] = i;
2350	}
2351		2047
2352	permute (search_arr, 1, SIZEOFFREE1 + 1);	2048	permute (search_arr, 1, SIZEOFFREE1 + 1);
2353	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2049	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2354	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2050	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2355	}	2051	}
…		…
2364	* Perhaps incorrectly, but I'm making the assumption that exclude	2060	* Perhaps incorrectly, but I'm making the assumption that exclude
2365	* is actually want is going to try and move there. We need this info	2061	* is actually want is going to try and move there. We need this info
2366	* because we have to know what movement the thing looking to move	2062	* because we have to know what movement the thing looking to move
2367	* there is capable of.	2063	* there is capable of.
2368	*/	2064	*/
2369
2370	int	2065	int
2371	find_dir (mapstruct *m, int x, int y, object *exclude)	2066	find_dir (maptile *m, int x, int y, object *exclude)
2372	{	2067	{
2373	int
2374	i,
2375	max = SIZEOFFREE, mflags;	2068	int i, max = SIZEOFFREE, mflags;
2376	sint16	2069
2377	nx,	2070	sint16 nx, ny;
2378	ny;
2379	object *	2071	object *tmp;
2380	tmp;	2072	maptile *mp;
2381	mapstruct *
2382	mp;
2383	MoveType
2384	blocked,
2385	move_type;
2386		2073
		2074	MoveType blocked, move_type;
		2075
2387	if (exclude && exclude->head)	2076	if (exclude && exclude->head_ () != exclude)
2388	{	2077	{
2389	exclude = exclude->head;	2078	exclude = exclude->head;
2390	move_type = exclude->move_type;	2079	move_type = exclude->move_type;
2391	}	2080	}
2392	else	2081	else
…		…
2400	mp = m;	2089	mp = m;
2401	nx = x + freearr_x[i];	2090	nx = x + freearr_x[i];
2402	ny = y + freearr_y[i];	2091	ny = y + freearr_y[i];
2403		2092
2404	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2093	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2094
2405	if (mflags & P_OUT_OF_MAP)	2095	if (mflags & P_OUT_OF_MAP)
2406	{
2407	max = maxfree[i];	2096	max = maxfree[i];
2408	}
2409	else	2097	else
2410	{	2098	{
2411	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2099	mapspace &ms = mp->at (nx, ny);
		2100
		2101	blocked = ms.move_block;
2412		2102
2413	if ((move_type & blocked) == move_type)	2103	if ((move_type & blocked) == move_type)
2414	{
2415	max = maxfree[i];	2104	max = maxfree[i];
2416	}
2417	else if (mflags & P_IS_ALIVE)	2105	else if (mflags & P_IS_ALIVE)
2418	{	2106	{
2419	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2107	for (tmp = ms.bot; tmp; tmp = tmp->above)
2420	{	2108	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2421	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2109	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2422	{
2423	break;	2110	break;
2424	}	2111
2425	}
2426	if (tmp)	2112	if (tmp)
2427	{
2428	return freedir[i];	2113	return freedir[i];
2429	}
2430	}	2114	}
2431	}	2115	}
2432	}	2116	}
		2117
2433	return 0;	2118	return 0;
2434	}	2119	}
2435		2120
2436	/*	2121	/*
2437	* distance(object 1, object 2) will return the square of the	2122	* distance(object 1, object 2) will return the square of the
2438	* distance between the two given objects.	2123	* distance between the two given objects.
2439	*/	2124	*/
2440
2441	int	2125	int
2442	distance (const object *ob1, const object *ob2)	2126	distance (const object *ob1, const object *ob2)
2443	{	2127	{
2444	int
2445	i;
2446
2447	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2128	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2448	return i;
2449	}	2129	}
2450		2130
2451	/*	2131	/*
2452	* find_dir_2(delta-x,delta-y) will return a direction in which	2132	* find_dir_2(delta-x,delta-y) will return a direction in which
2453	* an object which has subtracted the x and y coordinates of another	2133	* an object which has subtracted the x and y coordinates of another
2454	* object, needs to travel toward it.	2134	* object, needs to travel toward it.
2455	*/	2135	*/
2456
2457	int	2136	int
2458	find_dir_2 (int x, int y)	2137	find_dir_2 (int x, int y)
2459	{	2138	{
2460	int	2139	int q;
2461	q;
2462		2140
2463	if (y)	2141	if (y)
2464	q = x * 100 / y;	2142	q = x * 100 / y;
2465	else if (x)	2143	else if (x)
2466	q = -300 * x;	2144	q = -300 * x;
…		…
2491		2169
2492	return 3;	2170	return 3;
2493	}	2171	}
2494		2172
2495	/*	2173	/*
2496	* absdir(int): Returns a number between 1 and 8, which represent
2497	* the "absolute" direction of a number (it actually takes care of
2498	* "overflow" in previous calculations of a direction).
2499	*/
2500
2501	int
2502	absdir (int d)
2503	{
2504	while (d < 1)
2505	d += 8;
2506	while (d > 8)
2507	d -= 8;
2508	return d;
2509	}
2510
2511	/*
2512	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2174	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2513	* between two directions (which are expected to be absolute (see absdir())	2175	* between two directions (which are expected to be absolute (see absdir())
2514	*/	2176	*/
2515
2516	int	2177	int
2517	dirdiff (int dir1, int dir2)	2178	dirdiff (int dir1, int dir2)
2518	{	2179	{
2519	int	2180	int d;
2520	d;
2521		2181
2522	d = abs (dir1 - dir2);	2182	d = abs (dir1 - dir2);
2523	if (d > 4)	2183	if (d > 4)
2524	d = 8 - d;	2184	d = 8 - d;
		2185
2525	return d;	2186	return d;
2526	}	2187	}
2527		2188
2528	/* peterm:	2189	/* peterm:
2529	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2190	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2532	* This basically means that if direction is 15, then it could either go	2193	* This basically means that if direction is 15, then it could either go
2533	* direction 4, 14, or 16 to get back to where we are.	2194	* direction 4, 14, or 16 to get back to where we are.
2534	* Moved from spell_util.c to object.c with the other related direction	2195	* Moved from spell_util.c to object.c with the other related direction
2535	* functions.	2196	* functions.
2536	*/	2197	*/
2537
2538	int
2539	reduction_dir[SIZEOFFREE][3] = {	2198	int reduction_dir[SIZEOFFREE][3] = {
2540	{0, 0, 0}, /* 0 */	2199	{0, 0, 0}, /* 0 */
2541	{0, 0, 0}, /* 1 */	2200	{0, 0, 0}, /* 1 */
2542	{0, 0, 0}, /* 2 */	2201	{0, 0, 0}, /* 2 */
2543	{0, 0, 0}, /* 3 */	2202	{0, 0, 0}, /* 3 */
2544	{0, 0, 0}, /* 4 */	2203	{0, 0, 0}, /* 4 */
…		…
2592	* find a path to that monster that we found. If not,	2251	* find a path to that monster that we found. If not,
2593	* we don't bother going toward it. Returns 1 if we	2252	* we don't bother going toward it. Returns 1 if we
2594	* can see a direct way to get it	2253	* can see a direct way to get it
2595	* Modified to be map tile aware -.MSW	2254	* Modified to be map tile aware -.MSW
2596	*/	2255	*/
2597
2598
2599	int	2256	int
2600	can_see_monsterP (mapstruct *m, int x, int y, int dir)	2257	can_see_monsterP (maptile *m, int x, int y, int dir)
2601	{	2258	{
2602	sint16	2259	sint16 dx, dy;
2603	dx,
2604	dy;
2605	int
2606	mflags;	2260	int mflags;
2607		2261
2608	if (dir < 0)	2262	if (dir < 0)
2609	return 0; /* exit condition: invalid direction */	2263	return 0; /* exit condition: invalid direction */
2610		2264
2611	dx = x + freearr_x[dir];	2265	dx = x + freearr_x[dir];
…		…
2624	return 0;	2278	return 0;
2625		2279
2626	/* yes, can see. */	2280	/* yes, can see. */
2627	if (dir < 9)	2281	if (dir < 9)
2628	return 1;	2282	return 1;
		2283
2629	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2284	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2630	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2285	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2286	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2631	}	2287	}
2632
2633
2634		2288
2635	/*	2289	/*
2636	* can_pick(picker, item): finds out if an object is possible to be	2290	* can_pick(picker, item): finds out if an object is possible to be
2637	* picked up by the picker. Returnes 1 if it can be	2291	* picked up by the picker. Returnes 1 if it can be
2638	* picked up, otherwise 0.	2292	* picked up, otherwise 0.
…		…
2640	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2294	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2641	* core dumps if they do.	2295	* core dumps if they do.
2642	*	2296	*
2643	* Add a check so we can't pick up invisible objects (0.93.8)	2297	* Add a check so we can't pick up invisible objects (0.93.8)
2644	*/	2298	*/
2645
2646	int	2299	int
2647	can_pick (const object *who, const object *item)	2300	can_pick (const object *who, const object *item)
2648	{	2301	{
2649	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2302	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2650	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2303	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2651	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2304	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2652	}	2305	}
2653		2306
2654
2655	/*	2307	/*
2656	* create clone from object to another	2308	* create clone from object to another
2657	*/	2309	*/
2658	object *	2310	object *
2659	object_create_clone (object *asrc)	2311	object::deep_clone ()
2660	{	2312	{
2661	object *	2313	assert (("deep_clone called on non-head object", is_head ()));
2662	dst = NULL, *tmp, *src, *part, *prev, *item;
2663		2314
2664	if (!asrc)	2315	object *dst = clone ();
2665	return NULL;
2666	src = asrc;
2667	if (src->head)
2668	src = src->head;
2669		2316
2670	prev = NULL;	2317	object *prev = dst;
2671	for (part = src; part; part = part->more)	2318	for (object *part = this->more; part; part = part->more)
2672	{	2319	{
2673	tmp = get_object ();	2320	object *tmp = part->clone ();
2674	copy_object (part, tmp);
2675	tmp->x -= src->x;
2676	tmp->y -= src->y;
2677	if (!part->head)
2678	{
2679	dst = tmp;
2680	tmp->head = NULL;
2681	}
2682	else
2683	{
2684	tmp->head = dst;	2321	tmp->head = dst;
2685	}
2686	tmp->more = NULL;
2687	if (prev)
2688	prev->more = tmp;	2322	prev->more = tmp;
2689	prev = tmp;	2323	prev = tmp;
2690	}	2324	}
2691		2325
2692	/*** copy inventory ***/
2693	for (item = src->inv; item; item = item->below)	2326	for (object *item = inv; item; item = item->below)
2694	{	2327	insert_ob_in_ob (item->deep_clone (), dst);
2695	(void) insert_ob_in_ob (object_create_clone (item), dst);
2696	}
2697		2328
2698	return dst;	2329	return dst;
2699	}
2700
2701	/* return true if the object was destroyed, 0 otherwise */
2702	int
2703	was_destroyed (const object *op, tag_t old_tag)
2704	{
2705	/* checking for FLAG_FREED isn't necessary, but makes this function more
2706	* robust */
2707	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2708	}
2709
2710	/* GROS - Creates an object using a string representing its content. */
2711
2712	/* Basically, we save the content of the string to a temp file, then call */
2713
2714	/* load_object on it. I admit it is a highly inefficient way to make things, */
2715
2716	/* but it was simple to make and allows reusing the load_object function. */
2717
2718	/* Remember not to use load_object_str in a time-critical situation. */
2719
2720	/* Also remember that multiparts objects are not supported for now. */
2721
2722	object *
2723	load_object_str (const char *obstr)
2724	{
2725	object *
2726	op;
2727	char
2728	filename[MAX_BUF];
2729
2730	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2731
2732	FILE *
2733	tempfile = fopen (filename, "w");
2734
2735	if (tempfile == NULL)
2736	{
2737	LOG (llevError, "Error - Unable to access load object temp file\n");
2738	return NULL;
2739	};
2740	fprintf (tempfile, obstr);
2741	fclose (tempfile);
2742
2743	op = get_object ();
2744
2745	object_thawer
2746	thawer (filename);
2747
2748	if (thawer)
2749	load_object (thawer, op, 0);
2750
2751	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2752	CLEAR_FLAG (op, FLAG_REMOVED);
2753
2754	return op;
2755	}	2330	}
2756		2331
2757	/* This returns the first object in who's inventory that	2332	/* This returns the first object in who's inventory that
2758	* has the same type and subtype match.	2333	* has the same type and subtype match.
2759	* returns NULL if no match.	2334	* returns NULL if no match.
2760	*/	2335	*/
2761	object *	2336	object *
2762	find_obj_by_type_subtype (const object *who, int type, int subtype)	2337	find_obj_by_type_subtype (const object *who, int type, int subtype)
2763	{	2338	{
2764	object *
2765	tmp;
2766
2767	for (tmp = who->inv; tmp; tmp = tmp->below)	2339	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2768	if (tmp->type == type && tmp->subtype == subtype)	2340	if (tmp->type == type && tmp->subtype == subtype)
2769	return tmp;	2341	return tmp;
2770		2342
2771	return NULL;	2343	return 0;
2772	}	2344	}
2773		2345
2774	/* If ob has a field named key, return the link from the list,	2346	const shstr &
2775	* otherwise return NULL.	2347	object::kv_get (const shstr &key) const
2776	*
2777	* key must be a passed in shared string - otherwise, this won't
2778	* do the desired thing.
2779	*/
2780	key_value *
2781	get_ob_key_link (const object *ob, const char *key)
2782	{	2348	{
2783	key_value *	2349	for (key_value *kv = key_values; kv; kv = kv->next)
2784	link;
2785
2786	for (link = ob->key_values; link != NULL; link = link->next)
2787	{
2788	if (link->key == key)	2350	if (kv->key == key)
		2351	return kv->value;
		2352
		2353	return shstr_null;
		2354	}
		2355
		2356	void
		2357	object::kv_set (const shstr &key, const shstr &value)
		2358	{
		2359	for (key_value *kv = key_values; kv; kv = kv->next)
		2360	if (kv->key == key)
		2361	{
		2362	kv->value = value;
		2363	return;
		2364	}
		2365
		2366	key_value *kv = new key_value;
		2367
		2368	kv->next = key_values;
		2369	kv->key = key;
		2370	kv->value = value;
		2371
		2372	key_values = kv;
		2373	}
		2374
		2375	void
		2376	object::kv_del (const shstr &key)
		2377	{
		2378	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2379	if ((*kvp)->key == key)
		2380	{
		2381	key_value *kv = *kvp;
		2382	*kvp = (*kvp)->next;
		2383	delete kv;
		2384	return;
		2385	}
		2386	}
		2387
		2388	object::depth_iterator::depth_iterator (object *container)
		2389	: iterator_base (container)
		2390	{
		2391	while (item->inv)
		2392	item = item->inv;
		2393	}
		2394
		2395	void
		2396	object::depth_iterator::next ()
		2397	{
		2398	if (item->below)
		2399	{
		2400	item = item->below;
		2401
		2402	while (item->inv)
		2403	item = item->inv;
		2404	}
		2405	else
		2406	item = item->env;
		2407	}
		2408
		2409	const char *
		2410	object::flag_desc (char *desc, int len) const
		2411	{
		2412	char *p = desc;
		2413	bool first = true;
		2414
		2415	*p = 0;
		2416
		2417	for (int i = 0; i < NUM_FLAGS; i++)
		2418	{
		2419	if (len <= 10) // magic constant!
2789	{	2420	{
2790	return link;	2421	snprintf (p, len, ",...");
		2422	break;
2791	}	2423	}
2792	}
2793		2424
2794	return NULL;	2425	if (flag [i])
2795	}	2426	{
		2427	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2428	len -= cnt;
		2429	p += cnt;
		2430	first = false;
		2431	}
		2432	}
2796		2433
2797	/*	2434	return desc;
2798	* Returns the value of op has an extra_field for key, or NULL.	2435	}
2799	*	2436
2800	* The argument doesn't need to be a shared string.	2437	// return a suitable string describing an object in enough detail to find it
2801	*
2802	* The returned string is shared.
2803	*/
2804	const char *	2438	const char *
2805	get_ob_key_value (const object *op, const char *const key)	2439	object::debug_desc (char *info) const
2806	{	2440	{
2807	key_value *	2441	char flagdesc[512];
2808	link;	2442	char info2[256 * 4];
		2443	char *p = info;
		2444
		2445	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s,flags:[%s],type:%d}",
		2446	count,
		2447	uuid.c_str (),
		2448	&name,
		2449	title ? "\",title:\"" : "",
		2450	title ? (const char *)title : "",
		2451	flag_desc (flagdesc, 512), type);
		2452
		2453	if (!flag[FLAG_REMOVED] && env)
		2454	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2455
		2456	if (map)
		2457	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2458
		2459	return info;
		2460	}
		2461
2809	const char *	2462	const char *
2810	canonical_key;	2463	object::debug_desc () const
		2464	{
		2465	static char info[3][256 * 4];
		2466	static int info_idx;
2811		2467
2812	canonical_key = shstr::find (key);	2468	return debug_desc (info [++info_idx % 3]);
		2469	}
2813		2470
2814	if (canonical_key == NULL)	2471	struct region *
2815	{	2472	object::region () const
2816	/* 1. There being a field named key on any object	2473	{
2817	* implies there'd be a shared string to find.	2474	return map ? map->region (x, y)
2818	* 2. Since there isn't, no object has this field.	2475	: region::default_region ();
2819	* 3. Therefore, *this* object doesn't have this field.	2476	}
2820	*/	2477
		2478	const materialtype_t *
		2479	object::dominant_material () const
		2480	{
		2481	if (materialtype_t *mt = name_to_material (materialname))
		2482	return mt;
		2483
		2484	return name_to_material (shstr_unknown);
		2485	}
		2486
		2487	void
		2488	object::open_container (object *new_container)
		2489	{
		2490	if (container == new_container)
2821	return NULL;	2491	return;
		2492
		2493	object *old_container = container;
		2494
		2495	if (old_container)
2822	}	2496	{
		2497	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2498	return;
2823		2499
2824	/* This is copied from get_ob_key_link() above -	2500	#if 0
2825	* only 4 lines, and saves the function call overhead.	2501	// remove the "Close old_container" object.
		2502	if (object *closer = old_container->inv)
		2503	if (closer->type == CLOSE_CON)
		2504	closer->destroy ();
		2505	#endif
		2506
		2507	// make sure the container is available
		2508	esrv_send_item (this, old_container);
		2509
		2510	old_container->flag [FLAG_APPLIED] = false;
		2511	container = 0;
		2512
		2513	// client needs item update to make it work, client bug requires this to be separate
		2514	esrv_update_item (UPD_FLAGS, this, old_container);
		2515
		2516	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2517	play_sound (sound_find ("chest_close"));
		2518	}
		2519
		2520	if (new_container)
		2521	{
		2522	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2523	return;
		2524
		2525	// TODO: this does not seem to serve any purpose anymore?
		2526	#if 0
		2527	// insert the "Close Container" object.
		2528	if (archetype *closer = new_container->other_arch)
		2529	{
		2530	object *closer = arch_to_object (new_container->other_arch);
		2531	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2532	new_container->insert (closer);
		2533	}
		2534	#endif
		2535
		2536	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2537
		2538	// make sure the container is available, client bug requires this to be separate
		2539	esrv_send_item (this, new_container);
		2540
		2541	new_container->flag [FLAG_APPLIED] = true;
		2542	container = new_container;
		2543
		2544	// client needs flag change
		2545	esrv_update_item (UPD_FLAGS, this, new_container);
		2546	esrv_send_inventory (this, new_container);
		2547	play_sound (sound_find ("chest_open"));
		2548	}
		2549	// else if (!old_container->env && contr && contr->ns)
		2550	// contr->ns->floorbox_reset ();
		2551	}
		2552
		2553	object *
		2554	object::force_find (const shstr name)
		2555	{
		2556	/* cycle through his inventory to look for the MARK we want to
		2557	* place
2826	*/	2558	*/
2827	for (link = op->key_values; link != NULL; link = link->next)	2559	for (object *tmp = inv; tmp; tmp = tmp->below)
2828	{	2560	if (tmp->type == FORCE && tmp->slaying == name)
2829	if (link->key == canonical_key)	2561	return splay (tmp);
2830	{	2562
2831	return link->value;
2832	}
2833	}
2834	return NULL;	2563	return 0;
2835	}	2564	}
2836		2565
2837		2566	void
2838	/*	2567	object::force_add (const shstr name, int duration)
2839	* Updates the canonical_key in op to value.
2840	*
2841	* canonical_key is a shared string (value doesn't have to be).
2842	*
2843	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2844	* keys.
2845	*
2846	* Returns TRUE on success.
2847	*/
2848	int
2849	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2850	{	2568	{
2851	key_value *	2569	if (object *force = force_find (name))
2852	field = NULL, *last = NULL;	2570	force->destroy ();
2853		2571
2854	for (field = op->key_values; field != NULL; field = field->next)	2572	object *force = get_archetype (FORCE_NAME);
2855	{
2856	if (field->key != canonical_key)
2857	{
2858	last = field;
2859	continue;
2860	}
2861		2573
2862	if (value)	2574	force->slaying = name;
2863	field->value = value;	2575	force->stats.food = 1;
2864	else	2576	force->speed_left = -1.f;
2865	{
2866	/* Basically, if the archetype has this key set,
2867	* we need to store the null value so when we save
2868	* it, we save the empty value so that when we load,
2869	* we get this value back again.
2870	*/
2871	if (get_ob_key_link (&op->arch->clone, canonical_key))
2872	field->value = 0;
2873	else
2874	{
2875	if (last)
2876	last->next = field->next;
2877	else
2878	op->key_values = field->next;
2879		2577
2880	delete	2578	force->set_speed (duration ? 1.f / duration : 0.f);
2881	field;	2579	force->flag [FLAG_IS_USED_UP] = true;
2882	}	2580	force->flag [FLAG_APPLIED] = true;
2883	}
2884	return TRUE;
2885	}
2886	/* IF we get here, key doesn't exist */
2887		2581
2888	/* No field, we'll have to add it. */	2582	insert (force);
		2583	}
2889		2584
2890	if (!add_key)	2585	void
2891	{	2586	object::play_sound (faceidx sound)
2892	return FALSE;	2587	{
2893	}	2588	if (!sound)
2894	/* There isn't any good reason to store a null
2895	* value in the key/value list. If the archetype has
2896	* this key, then we should also have it, so shouldn't
2897	* be here. If user wants to store empty strings,
2898	* should pass in ""
2899	*/
2900	if (value == NULL)
2901	return TRUE;	2589	return;
2902		2590
2903	field = new key_value;	2591	if (flag [FLAG_REMOVED])
		2592	return;
2904		2593
2905	field->key = canonical_key;	2594	if (env)
2906	field->value = value;	2595	{
2907	/* Usual prepend-addition. */	2596	if (object *pl = in_player ())
2908	field->next = op->key_values;	2597	pl->contr->play_sound (sound);
2909	op->key_values = field;	2598	}
2910		2599	else
2911	return TRUE;	2600	map->play_sound (sound, x, y);
2912	}	2601	}
2913		2602
2914	/*
2915	* Updates the key in op to value.
2916	*
2917	* If add_key is FALSE, this will only update existing keys,
2918	* and not add new ones.
2919	* In general, should be little reason FALSE is ever passed in for add_key
2920	*
2921	* Returns TRUE on success.
2922	*/
2923	int
2924	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2925	{
2926	shstr
2927	key_ (key);
2928
2929	return set_ob_key_value_s (op, key_, value, add_key);
2930	}

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