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Comparing deliantra/server/common/object.C (file contents):
Revision 1.25 by root, Mon Sep 11 01:16:20 2006 UTC vs.
Revision 1.237 by root, Tue May 6 21:04:37 2008 UTC

1
2	/*	1	/*
3	* static char *rcsid_object_c =	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
4	* "$Id: object.C,v 1.25 2006/09/11 01:16:20 root Exp $";	3	*
5	*/	4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
6
7	/*
8	CrossFire, A Multiplayer game for X-windows
9
10	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
11	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
12		7	*
13	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
14	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
15	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
16	(at your option) any later version.	11	* (at your option) any later version.
17		12	*
18	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,
19	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
20	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21	GNU General Public License for more details.	16	* GNU General Public License for more details.
22		17	*
23	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
24	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
25	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
26		21	* The authors can be reached via e-mail to <support@deliantra.net>
27	The authors can be reached via e-mail at crossfire-devel@real-time.com
28	*/	22	*/
29		23
30	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
31	sub/add_weight will transcend the environment updating the carrying
32	variable. */
33	#include <global.h>	24	#include <global.h>
34	#ifndef WIN32 /* ---win32 exclude headers */
35	# include <stdio.h>	25	#include <stdio.h>
36	# include <sys/types.h>	26	#include <sys/types.h>
37	# include <sys/uio.h>	27	#include <sys/uio.h>
38	#endif /* win32 */
39	#include <object.h>	28	#include <object.h>
40	#include <funcpoint.h>	29	#include <sproto.h>
41	#include <skills.h>
42	#include <loader.h>	30	#include <loader.h>
43	int nrofallocobjects = 0;
44		31
45	object *objects; /* Pointer to the list of used objects */	32	#include <bitset>
46	object *active_objects; /* List of active objects that need to be processed */
47		33
48	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,	34	UUID UUID::cur;
		35	static uint64_t seq_next_save;
		36	static const uint64 UUID_GAP = 1<<19;
		37
		38	objectvec objects;
		39	activevec actives;
		40
		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,
49	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1	45	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
50	};	46	};
51	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,
52	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3	51	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
53	};	52	};
54	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,
55	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49	57	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
56	};	58	};
57	int freedir[SIZEOFFREE] = {	59	int freedir[SIZEOFFREE] = {
58	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,
59	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
60	};	64	};
61		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
62	/* 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. */
63	static int	141	static bool
64	compare_ob_value_lists_one (const object *wants, const object *has)	142	compare_ob_value_lists_one (const object *wants, const object *has)
65	{	143	{
66	key_value *wants_field;
67
68	/* 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
69	* 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
70	* different structure or at least keep the lists sorted...	146	* different structure or at least keep the lists sorted...
71	*/	147	*/
72		148
73	/* For each field in wants, */	149	/* For each field in wants, */
74	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)
75	{	151	if (has->kv_get (kv->key) != kv->value)
76	key_value *has_field;	152	return false;
77
78	/* Look for a field in has with the same key. */
79	has_field = get_ob_key_link (has, wants_field->key);
80
81	if (has_field == NULL)
82	{
83	/* No field with that name. */
84	return FALSE;
85	}
86
87	/* Found the matching field. */
88	if (has_field->value != wants_field->value)
89	{
90	/* Values don't match, so this half of the comparison is false. */
91	return FALSE;
92	}
93
94	/* If we get here, we found a match. Now for the next field in wants. */
95	}
96		153
97	/* 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. */
98	return TRUE;	155	return true;
99	}	156	}
100		157
101	/* Returns TRUE if ob1 has the same key_values as ob2. */	158	/* Returns TRUE if ob1 has the same key_values as ob2. */
102	static int	159	static bool
103	compare_ob_value_lists (const object *ob1, const object *ob2)	160	compare_ob_value_lists (const object *ob1, const object *ob2)
104	{	161	{
105	/* 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,
106	* so we need to run the comparison *twice*. :(	163	* so we need to run the comparison *twice*. :(
107	*/	164	*/
108	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);
109	}	167	}
110		168
111	/* 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
112	* they can be merged together.	170	* they can be merged together.
113	*	171	*
114	* 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
115	* replaces - this is mostly for clarity - a decent compiler should hopefully	173	* replaces - this is mostly for clarity - a decent compiler should hopefully
116	* reduce this to the same efficiency.	174	* reduce this to the same efficiency.
117	*	175	*
118	* Check nrof variable *before* calling CAN_MERGE()	176	* Check nrof variable *before* calling can_merge()
119	*	177	*
120	* Improvements made with merge: Better checking on potion, and also	178	* Improvements made with merge: Better checking on potion, and also
121	* check weight	179	* check weight
122	*/	180	*/
123
124	bool object::can_merge (object *ob1, object *ob2)	181	bool object::can_merge_slow (object *ob1, object *ob2)
125	{	182	{
126	/* A couple quicksanity checks */	183	/* A couple quicksanity checks */
127	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)
128	return 0;	189	return 0;
129		190
130	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))
131	return 0;	197	return 0;
132		198
133	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
134	* value could not be stored in a sint32 (which unfortunately sometimes is
135	* used to store nrof).
136	*/
137	if (ob1->nrof + ob2->nrof >= 1UL << 31)
138	return 0;
139
140	/* If the objects have been identified, set the BEEN_APPLIED flag.	199	/* If the objects have been identified, set the BEEN_APPLIED flag.
141	* 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
142	* 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
143	* 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
144	* flags lose any meaning.	203	* flags lose any meaning.
145	*/	204	*/
146	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	205	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
147	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	206	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
148		207
149	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	208	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
150	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	209	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
151		210
152		211	if (ob1->arch->name != ob2->arch->name
153	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
154	* being locked in inventory should prevent merging.
155	* 0x4 in flags3 is CLIENT_SENT
156	*/
157	if ((ob1->arch != ob2->arch) ||
158	(ob1->flags[0] != ob2->flags[0]) ||
159	(ob1->flags[1] != ob2->flags[1]) ||
160	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
161	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
162	(ob1->name != ob2->name) ||	212	|| ob1->name != ob2->name
163	(ob1->title != ob2->title) ||	213	|| ob1->title != ob2->title
164	(ob1->msg != ob2->msg) ||	214	|| ob1->msg != ob2->msg
165	(ob1->weight != ob2->weight) ||	215	|| ob1->weight != ob2->weight
166	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
167	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
168	(ob1->attacktype != ob2->attacktype) ||	216	|| ob1->attacktype != ob2->attacktype
169	(ob1->magic != ob2->magic) ||	217	|| ob1->magic != ob2->magic
170	(ob1->slaying != ob2->slaying) ||	218	|| ob1->slaying != ob2->slaying
171	(ob1->skill != ob2->skill) ||	219	|| ob1->skill != ob2->skill
172	(ob1->value != ob2->value) ||	220	|| ob1->value != ob2->value
173	(ob1->animation_id != ob2->animation_id) ||	221	|| ob1->animation_id != ob2->animation_id
174	(ob1->client_type != ob2->client_type) ||	222	|| ob1->client_type != ob2->client_type
175	(ob1->materialname != ob2->materialname) ||	223	|| ob1->materialname != ob2->materialname
176	(ob1->lore != ob2->lore) ||	224	|| ob1->lore != ob2->lore
177	(ob1->subtype != ob2->subtype) ||	225	|| ob1->subtype != ob2->subtype
178	(ob1->move_type != ob2->move_type) ||	226	|| ob1->move_type != ob2->move_type
179	(ob1->move_block != ob2->move_block) ||	227	|| ob1->move_block != ob2->move_block
180	(ob1->move_allow != ob2->move_allow) ||	228	|| ob1->move_allow != ob2->move_allow
181	(ob1->move_on != ob2->move_on) ||	229	|| ob1->move_on != ob2->move_on
182	(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)))
183	return 0;	235	return 0;
184		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
185	/* This is really a spellbook check - really, we should	244	/* This is really a spellbook check - we should in general
186	* check all objects in the inventory.	245	* not merge objects with real inventories, as splitting them
		246	* is hard.
187	*/	247	*/
188	if (ob1->inv || ob2->inv)	248	if (ob1->inv || ob2->inv)
189	{	249	{
190	/* if one object has inventory but the other doesn't, not equiv */
191	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
192	return 0;
193
194	/* Now check to see if the two inventory objects could merge */
195	if (!CAN_MERGE (ob1->inv, ob2->inv))	250	if (!(ob1->inv && ob2->inv))
196	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 */
197		258
198	/* 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
199	* if it is valid.	260	* if it is valid.
200	*/	261	*/
201	}	262	}
…		…
209		270
210	/* 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
211	* 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
212	* check?	273	* check?
213	*/	274	*/
214	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	275	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
215	return 0;	276	return 0;
216		277
217	switch (ob1->type)	278	switch (ob1->type)
218	{	279	{
219	case SCROLL:	280	case SCROLL:
220	if (ob1->level != ob2->level)	281	if (ob1->level != ob2->level)
221	return 0;	282	return 0;
222	break;	283	break;
223	}	284	}
224		285
225	if (ob1->key_values != NULL || ob2->key_values != NULL)	286	if (ob1->key_values || ob2->key_values)
226	{	287	{
227	/* At least one of these has key_values. */	288	/* At least one of these has key_values. */
228	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	289	if ((!ob1->key_values) != (!ob2->key_values))
229	/* 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))
230	return 0;	293	return 0;
231	else if (!compare_ob_value_lists (ob1, ob2))
232	return 0;
233	}	294	}
234		295
235	//TODO: generate an event or call into perl for additional checks
236	if (ob1->self || ob2->self)	296	if (ob1->self || ob2->self)
237	{	297	{
238	ob1->optimise ();	298	ob1->optimise ();
239	ob2->optimise ();	299	ob2->optimise ();
240		300
241	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)
242	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	}
243	}	315	}
244		316
245	/* Everything passes, must be OK. */	317	/* Everything passes, must be OK. */
246	return 1;	318	return 1;
247	}	319	}
248		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
249	/*	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	/*
250	* sum_weight() is a recursive function which calculates the weight	394	* this is a recursive function which calculates the weight
251	* 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
252	* containers are carrying, and sums it up.	396	* containers are carrying, and sums it up.
253	*/	397	*/
254	signed long	398	void
255	sum_weight (object *op)	399	object::update_weight ()
256	{	400	{
257	signed long sum;	401	sint32 sum = 0;
258	object *inv;
259		402
260	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	403	for (object *op = inv; op; op = op->below)
261	{	404	{
262	if (inv->inv)	405	if (op->inv)
263	sum_weight (inv);	406	op->update_weight ();
264	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)
265	}	414	{
266	if (op->type == CONTAINER && op->stats.Str)
267	sum = (sum * (100 - op->stats.Str)) / 100;
268	if (op->carrying != sum)
269	op->carrying = sum;	415	carrying = sum;
270	return sum;
271	}
272		416
273	/**	417	if (object *pl = visible_to ())
274	* Return the outermost environment object for a given object.	418	if (pl != this) // player is handled lazily
275	*/	419	esrv_update_item (UPD_WEIGHT, pl, this);
276
277	object *
278	object_get_env_recursive (object *op)
279	{
280	while (op->env != NULL)
281	op = op->env;
282	return op;
283	}
284
285	/*
286	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
287	* a better check. We basically keeping traversing up until we can't
288	* or find a player.
289	*/
290
291	object *
292	is_player_inv (object *op)
293	{
294	for (; op != NULL && op->type != PLAYER; op = op->env)
295	if (op->env == op)
296	op->env = NULL;
297	return op;
298	}
299
300	/*
301	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
302	* Some error messages.
303	* The result of the dump is stored in the static global errmsg array.
304	*/
305
306	void
307	dump_object2 (object *op)
308	{
309	errmsg[0] = 0;
310	return;
311	//TODO//D#d#
312	#if 0
313	char *cp;
314
315	/* object *tmp;*/
316
317	if (op->arch != NULL)
318	{	420	}
319	strcat (errmsg, "arch ");
320	strcat (errmsg, op->arch->name ? op->arch->name : "(null)");
321	strcat (errmsg, "\n");
322	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
323	strcat (errmsg, cp);
324	# if 0
325	/* Don't dump player diffs - they are too long, mostly meaningless, and
326	* will overflow the buffer.
327	* Changed so that we don't dump inventory either. This may
328	* also overflow the buffer.
329	*/
330	if (op->type != PLAYER && (cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
331	strcat (errmsg, cp);
332	for (tmp = op->inv; tmp; tmp = tmp->below)
333	dump_object2 (tmp);
334	# endif
335	strcat (errmsg, "end\n");
336	}
337	else
338	{
339	strcat (errmsg, "Object ");
340	if (op->name == NULL)
341	strcat (errmsg, "(null)");
342	else
343	strcat (errmsg, op->name);
344	strcat (errmsg, "\n");
345	# if 0
346	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
347	strcat (errmsg, cp);
348	for (tmp = op->inv; tmp; tmp = tmp->below)
349	dump_object2 (tmp);
350	# endif
351	strcat (errmsg, "end\n");
352	}
353	#endif
354	}	421	}
355		422
356	/*	423	/*
357	* Dumps an object. Returns output in the static global errmsg array.	424	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
358	*/	425	*/
359		426	char *
360	void
361	dump_object (object *op)	427	dump_object (object *op)
362	{	428	{
363	if (op == NULL)	429	if (!op)
364	{	430	return strdup ("[NULLOBJ]");
365	strcpy (errmsg, "[NULL pointer]");
366	return;
367	}
368	errmsg[0] = '\0';
369	dump_object2 (op);
370	}
371		431
372	void	432	object_freezer freezer;
373	dump_all_objects (void)	433	op->write (freezer);
374	{	434	return freezer.as_string ();
375	object *op;
376
377	for (op = objects; op != NULL; op = op->next)
378	{
379	dump_object (op);
380	fprintf (logfile, "Object %d\n:%s\n", op->count, errmsg);
381	}
382	}	435	}
383		436
384	/*	437	/*
385	* 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
386	* multi-object 1 which is closest to the second object.	439	* multi-object 1 which is closest to the second object.
387	* If it's not a multi-object, it is returned.	440	* If it's not a multi-object, it is returned.
388	*/	441	*/
389
390	object *	442	object *
391	get_nearest_part (object *op, const object *pl)	443	get_nearest_part (object *op, const object *pl)
392	{	444	{
393	object *tmp, *closest;	445	object *tmp, *closest;
394	int last_dist, i;	446	int last_dist, i;
395		447
396	if (op->more == NULL)	448	if (!op->more)
397	return op;	449	return op;
		450
398	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)
399	if ((i = distance (tmp, pl)) < last_dist)	454	if ((i = distance (tmp, pl)) < last_dist)
400	closest = tmp, last_dist = i;	455	closest = tmp, last_dist = i;
		456
401	return closest;	457	return closest;
402	}	458	}
403		459
404	/*	460	/*
405	* 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.
406	*/	463	*/
407
408	object *	464	object *
409	find_object (tag_t i)	465	find_object (tag_t i)
410	{	466	{
411	object *op;	467	for_all_objects (op)
412
413	for (op = objects; op != NULL; op = op->next)
414	if (op->count == i)	468	if (op->count == i)
415	break;
416	return op;	469	return op;
		470
		471	return 0;
417	}	472	}
418		473
419	/*	474	/*
420	* 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.
421	* Used only by the patch command, but not all that useful.	476	* Used only by the patch command, but not all that useful.
422	* Enables features like "patch <name-of-other-player> food 999"	477	* Enables features like "patch <name-of-other-player> food 999"
423	*/	478	*/
424
425	object *	479	object *
426	find_object_name (const char *str)	480	find_object_name (const char *str)
427	{	481	{
428	const char *name = shstr::find (str);	482	shstr_cmp str_ (str);
429	object *op;	483	object *op;
430		484
431	for (op = objects; op != NULL; op = op->next)	485	for_all_objects (op)
432	if (&op->name == name)	486	if (op->name == str_)
433	break;	487	break;
434		488
435	return op;	489	return op;
436	}
437
438	void
439	free_all_object_data ()
440	{
441	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
442	}
443
444	/*
445	* Returns the object which this object marks as being the owner.
446	* A id-scheme is used to avoid pointing to objects which have been
447	* freed and are now reused. If this is detected, the owner is
448	* set to NULL, and NULL is returned.
449	* Changed 2004-02-12 - if the player is setting at the play again
450	* prompt, he is removed, and we don't want to treat him as an owner of
451	* anything, so check removed flag. I don't expect that this should break
452	* anything - once an object is removed, it is basically dead anyways.
453	*/
454
455	object *
456	get_owner (object *op)
457	{
458	if (op->owner == NULL)
459	return NULL;
460
461	if (!QUERY_FLAG (op->owner, FLAG_FREED) && !QUERY_FLAG (op->owner, FLAG_REMOVED) && op->owner->count == op->ownercount)
462	return op->owner;
463
464	op->owner = NULL;
465	op->ownercount = 0;
466	return NULL;
467	}
468
469	void
470	clear_owner (object *op)
471	{
472	if (!op)
473	return;
474
475	if (op->owner && op->ownercount == op->owner->count)
476	op->owner->refcount--;
477
478	op->owner = NULL;
479	op->ownercount = 0;
480	}	490	}
481		491
482	/*	492	/*
483	* 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
484	* skill and experience objects.	494	* skill and experience objects.
485	*/	495	* ACTUALLY NO! investigate! TODO
486	void
487	set_owner (object *op, object *owner)
488	{
489	if (owner == NULL || op == NULL)
490	return;
491
492	/* next line added to allow objects which own objects */
493	/* Add a check for ownercounts in here, as I got into an endless loop
494	* with the fireball owning a poison cloud which then owned the
495	* fireball. I believe that was caused by one of the objects getting
496	* freed and then another object replacing it. Since the ownercounts
497	* didn't match, this check is valid and I believe that cause is valid.
498	*/	496	*/
499	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)
500	owner = owner->owner;	503	owner = owner->owner;
501		504
502	/* IF the owner still has an owner, we did not resolve to a final owner.	505	if (flag [FLAG_FREED])
503	* so lets not add to that.
504	*/
505	if (owner->owner)
506	return;
507
508	op->owner = owner;
509
510	op->ownercount = owner->count;
511	owner->refcount++;
512	}
513
514	/* Set the owner to clone's current owner and set the skill and experience
515	* objects to clone's objects (typically those objects that where the owner's
516	* current skill and experience objects at the time when clone's owner was
517	* set - not the owner's current skill and experience objects).
518	*
519	* Use this function if player created an object (e.g. fire bullet, swarm
520	* spell), and this object creates further objects whose kills should be
521	* accounted for the player's original skill, even if player has changed
522	* skills meanwhile.
523	*/
524	void
525	copy_owner (object *op, object *clone)
526	{
527	object *owner = get_owner (clone);
528
529	if (owner == NULL)
530	{	506	{
531	/* 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 ());
532	* as appropriate.
533	*/
534	if (clone->type == PLAYER)
535	owner = clone;
536	else
537	return;	508	return;
		509	}
		510
		511	this->owner = owner;
		512	}
		513
		514	int
		515	object::slottype () const
		516	{
		517	if (type == SKILL)
538	}	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	}
539		530
540	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;
541	}	578	}
542		579
543	/* Zero the key_values on op, decrementing the shared-string	580	/* Zero the key_values on op, decrementing the shared-string
544	* refcounts and freeing the links.	581	* refcounts and freeing the links.
545	*/	582	*/
546	static void	583	static void
547	free_key_values (object *op)	584	free_key_values (object *op)
548	{	585	{
549	for (key_value *i = op->key_values; i != 0;)	586	for (key_value *i = op->key_values; i; )
550	{	587	{
551	key_value *next = i->next;	588	key_value *next = i->next;
552	delete i;	589	delete i;
553		590
554	i = next;	591	i = next;
555	}	592	}
556		593
557	op->key_values = 0;	594	op->key_values = 0;
558	}	595	}
559		596
560	void object::clear ()
561	{
562	attachable_base::clear ();
563
564	free_key_values (this);
565
566	clear_owner (this);
567
568	name = 0;
569	name_pl = 0;
570	title = 0;
571	race = 0;
572	slaying = 0;
573	skill = 0;
574	msg = 0;
575	lore = 0;
576	custom_name = 0;
577	materialname = 0;
578
579	memset (static_cast < object_pod * >(this), 0, sizeof (object_pod));
580
581	SET_FLAG (this, FLAG_REMOVED);
582	}
583
584	void object::clone (object *destination)
585	{
586	*(object_copy *) destination = *this;
587	*(object_pod *) destination = *this;
588
589	if (self || cb)
590	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
591	}
592
593	/*	597	/*
594	* clear_object() frees everything allocated by an object, and also
595	* clears all variables and flags to default settings.
596	*/
597
598	void
599	clear_object (object *op)
600	{
601	op->clear ();
602
603	op->contr = NULL;
604	op->below = NULL;
605	op->above = NULL;
606	op->inv = NULL;
607	op->container = NULL;
608	op->env = NULL;
609	op->more = NULL;
610	op->head = NULL;
611	op->map = NULL;
612	op->refcount = 0;
613	op->active_next = NULL;
614	op->active_prev = NULL;
615	/* What is not cleared is next, prev, and count */
616
617	op->expmul = 1.0;
618	op->face = blank_face;
619	op->attacked_by_count = -1;
620
621	if (settings.casting_time)
622	op->casting_time = -1;
623	}
624
625	/*
626	* copy object first frees everything allocated by the second object,	598	* copy_to first frees everything allocated by the dst object,
627	* and then copies the contends of the first object into the second	599	* and then copies the contents of itself into the second
628	* object, allocating what needs to be allocated. Basically, any	600	* object, allocating what needs to be allocated. Basically, any
629	* 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,
630	* 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
631	* will point at garbage.	603	* will point at garbage.
632	*/	604	*/
633
634	void	605	void
635	copy_object (object *op2, object *op)	606	object::copy_to (object *dst)
636	{	607	{
637	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	608	dst->remove ();
638	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	609	*(object_copy *)dst = *this;
639		610	dst->flag [FLAG_REMOVED] = true;
640	op2->clone (op);
641
642	if (is_freed)
643	SET_FLAG (op, FLAG_FREED);
644	if (is_removed)
645	SET_FLAG (op, FLAG_REMOVED);
646
647	if (op2->speed < 0)
648	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
649		611
650	/* Copy over key_values, if any. */	612	/* Copy over key_values, if any. */
651	if (op2->key_values)	613	if (key_values)
652	{	614	{
653	key_value *tail = 0;	615	key_value *tail = 0;
654	key_value *i;
655
656	op->key_values = 0;	616	dst->key_values = 0;
657		617
658	for (i = op2->key_values; i; i = i->next)	618	for (key_value *i = key_values; i; i = i->next)
659	{	619	{
660	key_value *new_link = new key_value;	620	key_value *new_link = new key_value;
661		621
662	new_link->next = 0;	622	new_link->next = 0;
663	new_link->key = i->key;	623	new_link->key = i->key;
664	new_link->value = i->value;	624	new_link->value = i->value;
665		625
666	/* Try and be clever here, too. */	626	/* Try and be clever here, too. */
667	if (!op->key_values)	627	if (!dst->key_values)
668	{	628	{
669	op->key_values = new_link;	629	dst->key_values = new_link;
670	tail = new_link;	630	tail = new_link;
671	}	631	}
672	else	632	else
673	{	633	{
674	tail->next = new_link;	634	tail->next = new_link;
675	tail = new_link;	635	tail = new_link;
676	}	636	}
677	}	637	}
678	}	638	}
679		639
680	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;
681	}	672	}
682		673
683	/*	674	/*
684	* 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
685	* 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
686	* 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.
687	*/	678	*/
688
689	void	679	void
690	update_turn_face (object *op)	680	update_turn_face (object *op)
691	{	681	{
692	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	682	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
693	return;	683	return;
		684
694	SET_ANIMATION (op, op->direction);	685	SET_ANIMATION (op, op->direction);
695	update_object (op, UP_OBJ_FACE);	686	update_object (op, UP_OBJ_FACE);
696	}	687	}
697		688
698	/*	689	/*
699	* 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
700	* 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.
701	* 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.
702	*/	693	*/
703
704	void	694	void
705	update_ob_speed (object *op)	695	object::set_speed (float speed)
706	{	696	{
707	extern int arch_init;	697	if (flag [FLAG_FREED] && speed)
708
709	/* No reason putting the archetypes objects on the speed list,
710	* since they never really need to be updated.
711	*/
712
713	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
714	{	698	{
715	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	699	LOG (llevError, "Object %s is freed but has speed.\n", &name);
716	#ifdef MANY_CORES
717	abort ();
718	#else
719	op->speed = 0;	700	speed = 0;
720	#endif
721	}
722	if (arch_init)
723	{	701	}
724	return;
725	}
726	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
727	{
728	/* If already on active list, don't do anything */
729	if (op->active_next || op->active_prev || op == active_objects)
730	return;
731		702
732	/* process_events() expects us to insert the object at the beginning	703	this->speed = speed;
733	* of the list. */	704
734	op->active_next = active_objects;	705	if (has_active_speed ())
735	if (op->active_next != NULL)	706	activate ();
736	op->active_next->active_prev = op;
737	active_objects = op;
738	}
739	else	707	else
740	{	708	deactivate ();
741	/* If not on the active list, nothing needs to be done */
742	if (!op->active_next && !op->active_prev && op != active_objects)
743	return;
744
745	if (op->active_prev == NULL)
746	{
747	active_objects = op->active_next;
748	if (op->active_next != NULL)
749	op->active_next->active_prev = NULL;
750	}
751	else
752	{
753	op->active_prev->active_next = op->active_next;
754	if (op->active_next)
755	op->active_next->active_prev = op->active_prev;
756	}
757	op->active_next = NULL;
758	op->active_prev = NULL;
759	}
760	}	709	}
761		710
762	/* This function removes object 'op' from the list of active
763	* objects.
764	* This should only be used for style maps or other such
765	* reference maps where you don't want an object that isn't
766	* in play chewing up cpu time getting processed.
767	* The reverse of this is to call update_ob_speed, which
768	* will do the right thing based on the speed of the object.
769	*/
770	void
771	remove_from_active_list (object *op)
772	{
773	/* If not on the active list, nothing needs to be done */
774	if (!op->active_next && !op->active_prev && op != active_objects)
775	return;
776
777	if (op->active_prev == NULL)
778	{
779	active_objects = op->active_next;
780	if (op->active_next != NULL)
781	op->active_next->active_prev = NULL;
782	}
783	else
784	{
785	op->active_prev->active_next = op->active_next;
786	if (op->active_next)
787	op->active_next->active_prev = op->active_prev;
788	}
789	op->active_next = NULL;
790	op->active_prev = NULL;
791	}
792
793	/*	711	/*
794	* update_object() updates the array which represents the map.	712	* update_object() updates the the map.
795	* It takes into account invisible objects (and represent squares covered	713	* It takes into account invisible objects (and represent squares covered
796	* 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
797	* invisible object, etc...)	715	* invisible object, etc...)
798	* 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
799	* 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
800	* updating that window, though, since update_object() is called _often_)	718	* updating that window, though, since update_object() is called _often_)
801	*	719	*
802	* 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.
803	* For example, if the only thing that has changed is the face (due to
804	* an animation), we don't need to call update_position until that actually
805	* comes into view of a player. OTOH, many other things, like addition/removal
806	* of walls or living creatures may need us to update the flags now.
807	* current action are:	721	* current action are:
808	* UP_OBJ_INSERT: op was inserted	722	* UP_OBJ_INSERT: op was inserted
809	* UP_OBJ_REMOVE: op was removed	723	* UP_OBJ_REMOVE: op was removed
810	* 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
811	* 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.
812	* UP_OBJ_FACE: only the objects face has changed.	726	* UP_OBJ_FACE: only the objects face has changed.
813	*/	727	*/
814
815	void	728	void
816	update_object (object *op, int action)	729	update_object (object *op, int action)
817	{	730	{
818	int update_now = 0, flags;	731	if (!op)
819	MoveType move_on, move_off, move_block, move_slow;
820
821	if (op == NULL)
822	{	732	{
823	/* this should never happen */	733	/* this should never happen */
824	LOG (llevDebug, "update_object() called for NULL object.\n");	734	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
825	return;	735	return;
826	}	736	}
827		737
828	if (op->env != NULL)	738	if (!op->is_on_map ())
829	{	739	{
830	/* Animation is currently handled by client, so nothing	740	/* Animation is currently handled by client, so nothing
831	* to do in this case.	741	* to do in this case.
832	*/	742	*/
833	return;	743	return;
834	}	744	}
835		745
836	/* If the map is saving, don't do anything as everything is
837	* going to get freed anyways.
838	*/
839	if (!op->map || op->map->in_memory == MAP_SAVING)
840	return;
841
842	/* make sure the object is within map boundaries */	746	/* make sure the object is within map boundaries */
843	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)
844	{	748	{
845	LOG (llevError, "update_object() called for object out of map!\n");	749	LOG (llevError, "update_object() called for object out of map!\n");
846	#ifdef MANY_CORES	750	#ifdef MANY_CORES
847	abort ();	751	abort ();
848	#endif	752	#endif
849	return;	753	return;
850	}	754	}
851		755
852	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	756	mapspace &m = op->ms ();
853	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
854	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
855	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
856	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
857	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
858		757
		758	if (!(m.flags_ & P_UPTODATE))
		759	/* nop */;
859	if (action == UP_OBJ_INSERT)	760	else if (action == UP_OBJ_INSERT)
860	{	761	{
		762	// this is likely overkill, TODO: revisit (schmorp)
861	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	763	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
862	update_now = 1;
863
864	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	764	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
865	update_now = 1;	765	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
866		766	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		767	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
867	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	768	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
868	update_now = 1;
869
870	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
871	update_now = 1;
872
873	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
874	update_now = 1;
875
876	if ((move_on | op->move_on) != move_on)	769	|| (m.move_on | op->move_on ) != m.move_on
877	update_now = 1;
878
879	if ((move_off | op->move_off) != move_off)	770	|| (m.move_off | op->move_off ) != m.move_off
880	update_now = 1;	771	|| (m.move_slow | op->move_slow) != m.move_slow
881
882	/* 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
883	* to have move_allow right now.	773	* to have move_allow right now.
884	*/	774	*/
885	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	775	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
886	update_now = 1;	776	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
887		777	m.flags_ = 0;
888	if ((move_slow | op->move_slow) != move_slow)
889	update_now = 1;
890	}	778	}
891	/* if the object is being removed, we can't make intelligent	779	/* if the object is being removed, we can't make intelligent
892	* decisions, because remove_ob can't really pass the object	780	* decisions, because remove_ob can't really pass the object
893	* that is being removed.	781	* that is being removed.
894	*/	782	*/
895	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	783	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
896	{	784	m.flags_ = 0;
897	update_now = 1;
898	}
899	else if (action == UP_OBJ_FACE)	785	else if (action == UP_OBJ_FACE)
900	{
901	/* Nothing to do for that case */	786	/* Nothing to do for that case */ ;
902	}
903	else	787	else
904	{
905	LOG (llevError, "update_object called with invalid action: %d\n", action);	788	LOG (llevError, "update_object called with invalid action: %d\n", action);
906	}
907		789
908	if (update_now)
909	{
910	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
911	update_position (op->map, op->x, op->y);
912	}
913
914	if (op->more != NULL)	790	if (op->more)
915	update_object (op->more, action);	791	update_object (op->more, action);
916	}
917
918	static unordered_vector<object *> mortals;
919	static std::vector<object *> freed;
920
921	void object::free_mortals ()
922	{
923	for (unordered_vector<object *>::iterator i = mortals.begin (); i != mortals.end (); )
924	if (!(*i)->refcount)
925	{
926	freed.push_back (*i);
927	mortals.erase (i);
928	}
929	else
930	++i;
931	}	792	}
932		793
933	object::object ()	794	object::object ()
934	{	795	{
935	SET_FLAG (this, FLAG_REMOVED);	796	SET_FLAG (this, FLAG_REMOVED);
936		797
937	expmul = 1.0;	798	expmul = 1.0;
938	face = blank_face;	799	face = blank_face;
939	attacked_by_count = -1;
940	}	800	}
941		801
942	object::~object ()	802	object::~object ()
943	{	803	{
		804	unlink ();
		805
944	free_key_values (this);	806	free_key_values (this);
945	}	807	}
946		808
		809	static int object_count;
		810
947	void object::link ()	811	void object::link ()
948	{	812	{
		813	assert (!index);//D
		814	uuid = UUID::gen ();
949	count = ++ob_count;	815	count = ++object_count;
950		816
951	prev = 0;	817	refcnt_inc ();
952	next = objects;	818	objects.insert (this);
953
954	if (objects)
955	objects->prev = this;
956
957	objects = this;
958	}	819	}
959		820
960	void object::unlink ()	821	void object::unlink ()
961	{	822	{
962	count = 0;
963
964	/* Remove this object from the list of used objects */
965	if (prev)
966	{
967	prev->next = next;
968	prev = 0;
969	}
970
971	if (next)	823	if (!index)
972	{	824	return;
973	next->prev = prev;	825
974	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)
975	}	881	{
		882	op->flag [flag] = value;
		883	op->set_flag_inv (flag, value);
		884	}
		885	}
976		886
977	if (this == objects)	887	/*
978	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	}
979	}	935	}
980		936
981	object *object::create ()	937	object *object::create ()
982	{	938	{
983	object *op;
984
985	if (freed.empty ())
986	op = new object;	939	object *op = new object;
987	else
988	{
989	// highly annoying, but the only way to get it stable right now
990	op = freed.back (); freed.pop_back ();
991	op->~object ();
992	new ((void *)op) object;
993	}
994
995	op->link ();	940	op->link ();
996	return op;	941	return op;
997	}	942	}
998		943
999	/*	944	static struct freed_map : maptile
1000	* free_object() frees everything allocated by an object, removes
1001	* it from the list of used objects, and puts it on the list of
1002	* free objects. The IS_FREED() flag is set in the object.
1003	* The object must have been removed by remove_ob() first for
1004	* this function to succeed.
1005	*
1006	* If free_inventory is set, free inventory as well. Else drop items in
1007	* inventory to the ground.
1008	*/
1009	void object::free (bool free_inventory)
1010	{	945	{
1011	if (!QUERY_FLAG (this, FLAG_REMOVED))	946	freed_map ()
1012	{	947	{
1013	LOG (llevDebug, "Free object called with non removed object\n");	948	path = "<freed objects map>";
1014	dump_object (this);	949	name = "/internal/freed_objects_map";
1015	#ifdef MANY_CORES	950	width = 3;
1016	abort ();	951	height = 3;
1017	#endif	952	nodrop = 1;
		953
		954	alloc ();
		955	in_memory = MAP_ACTIVE;
1018	}	956	}
1019		957
1020	if (QUERY_FLAG (this, FLAG_FRIENDLY))	958	~freed_map ()
1021	{	959	{
1022	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])
1023	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)
1024	}	988	{
1025		989	more->destroy ();
1026	if (QUERY_FLAG (this, FLAG_FREED))	990	more = 0;
1027	{	991	}
1028	dump_object (this);	992
1029	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);
1030	return;	1012	return;
1031	}	1013	}
1032		1014
1033	if (more)	1015	destroy_inv (!destroy_inventory);
1034	{
1035	more->free (free_inventory);
1036	more = 0;
1037	}
1038		1016
1039	if (inv)	1017	if (is_head ())
1040	{	1018	if (sound_destroy)
1041	/* Only if the space blocks everything do we not process -	1019	play_sound (sound_destroy);
1042	* if some form of movement is allowed, let objects	1020	else if (flag [FLAG_MONSTER])
1043	* drop on that space.	1021	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
1044	*/
1045	if (free_inventory || !map || map->in_memory != MAP_IN_MEMORY || (GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL))
1046	{
1047	object *
1048	op = inv;
1049		1022
1050	while (op)	1023	attachable::destroy ();
1051	{
1052	object *
1053	tmp = op->below;
1054
1055	remove_ob (op);
1056	op->free (free_inventory);
1057	op = tmp;
1058	}
1059	}
1060	else
1061	{ /* Put objects in inventory onto this space */
1062	object *
1063	op = inv;
1064
1065	while (op)
1066	{
1067	object *
1068	tmp = op->below;
1069
1070	remove_ob (op);
1071
1072	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
1073	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
1074	free_object (op);
1075	else
1076	{
1077	op->x = x;
1078	op->y = y;
1079	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
1080	}
1081
1082	op = tmp;
1083	}
1084	}
1085	}
1086
1087	clear_owner (this);
1088
1089	/* Remove object from the active list */
1090	speed = 0;
1091	update_ob_speed (this);
1092
1093	unlink ();
1094
1095	SET_FLAG (this, FLAG_FREED);
1096
1097	mortals.push_back (this);
1098	}	1024	}
1099		1025
1100	/*	1026	/* op->remove ():
1101	* sub_weight() recursively (outwards) subtracts a number from the
1102	* weight of an object (and what is carried by it's environment(s)).
1103	*/
1104
1105	void
1106	sub_weight (object *op, signed long weight)
1107	{
1108	while (op != NULL)
1109	{
1110	if (op->type == CONTAINER)
1111	{
1112	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1113	}
1114	op->carrying -= weight;
1115	op = op->env;
1116	}
1117	}
1118
1119	/* remove_ob(op):
1120	* 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
1121	* 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
1122	* object will have no environment. If the object previously had an	1029	* object will have no environment. If the object previously had an
1123	* environment, the x and y coordinates will be updated to	1030	* environment, the x and y coordinates will be updated to
1124	* the previous environment.	1031	* the previous environment.
1125	* Beware: This function is called from the editor as well!
1126	*/	1032	*/
1127
1128	void	1033	void
1129	remove_ob (object *op)	1034	object::do_remove ()
1130	{	1035	{
		1036	object *tmp, *last = 0;
1131	object *	1037	object *otmp;
1132	tmp, *
1133	last = NULL;
1134	object *
1135	otmp;
1136	tag_t
1137	tag;
1138	int
1139	check_walk_off;
1140	mapstruct *
1141	m;
1142	sint16
1143	x,
1144	y;
1145		1038
		1039	if (flag [FLAG_REMOVED])
		1040	return;
1146		1041
1147	if (QUERY_FLAG (op, FLAG_REMOVED))	1042	INVOKE_OBJECT (REMOVE, this);
1148	{
1149	dump_object (op);
1150	LOG (llevError, "Trying to remove removed object.\n%s\n", errmsg);
1151		1043
1152	/* Changed it to always dump core in this case. As has been learned	1044	flag [FLAG_REMOVED] = true;
1153	* in the past, trying to recover from errors almost always
1154	* make things worse, and this is a real error here - something
1155	* that should not happen.
1156	* Yes, if this was a mission critical app, trying to do something
1157	* to recover may make sense, but that is because failure of the app
1158	* may have other disastrous problems. Cf runs out of a script
1159	* so is easily enough restarted without any real problems.
1160	* MSW 2001-07-01
1161	*/
1162	abort ();
1163	}
1164	if (op->more != NULL)
1165	remove_ob (op->more);
1166		1045
1167	SET_FLAG (op, FLAG_REMOVED);	1046	if (more)
		1047	more->remove ();
1168		1048
1169	/*	1049	/*
1170	* In this case, the object to be removed is in someones	1050	* In this case, the object to be removed is in someones
1171	* inventory.	1051	* inventory.
1172	*/	1052	*/
1173	if (op->env != NULL)	1053	if (env)
1174	{	1054	{
1175	if (op->nrof)	1055	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1176	sub_weight (op->env, op->weight * op->nrof);	1056	if (object *pl = visible_to ())
1177	else	1057	esrv_del_item (pl->contr, count);
1178	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	/* we set up values so that it could be inserted into
		1063	* the map, but we don't actually do that - it is up
		1064	* to the caller to decide what we want to do.
		1065	*/
		1066	map = env->map;
		1067	x = env->x;
		1068	y = env->y;
		1069
		1070	// make sure cmov optimisation is applicable
		1071	*(above ? &above->below : &env->inv) = below;
		1072	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1073
		1074	above = 0;
		1075	below = 0;
		1076	env = 0;
1179		1077
1180	/* 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
1181	* made to players inventory. If set, avoiding the call	1079	* made to players inventory. If set, avoiding the call
1182	* to save cpu time.	1080	* to save cpu time.
1183	*/	1081	*/
1184	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))
1185	fix_player (otmp);	1083	otmp->update_stats ();
		1084	}
		1085	else if (map)
		1086	{
		1087	map->dirty = true;
		1088	mapspace &ms = this->ms ();
1186		1089
1187	if (op->above != NULL)	1090	if (object *pl = ms.player ())
1188	op->above->below = op->below;	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	// re-link, make sure compiler can easily use cmove
		1114	*(above ? &above->below : &ms.top) = below;
		1115	*(below ? &below->above : &ms.bot) = above;
		1116
		1117	above = 0;
		1118	below = 0;
		1119
		1120	if (map->in_memory == MAP_SAVING)
		1121	return;
		1122
		1123	int check_walk_off = !flag [FLAG_NO_APPLY];
		1124
		1125	if (object *pl = ms.player ())
		1126	{
		1127	if (pl->container == this)
		1128	/* If a container that the player is currently using somehow gets
		1129	* removed (most likely destroyed), update the player view
		1130	* appropriately.
		1131	*/
		1132	pl->close_container ();
		1133
		1134	//TODO: the floorbox prev/next might need updating
		1135	//esrv_del_item (pl->contr, count);
		1136	//TODO: update floorbox to preserve ordering
		1137	if (pl->contr->ns)
		1138	pl->contr->ns->floorbox_update ();
		1139	}
		1140
		1141	for (tmp = ms.bot; tmp; tmp = tmp->above)
		1142	{
		1143	/* No point updating the players look faces if he is the object
		1144	* being removed.
		1145	*/
		1146
		1147	/* See if object moving off should effect something */
		1148	if (check_walk_off
		1149	&& ((move_type & tmp->move_off)
		1150	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1151	{
		1152	move_apply (tmp, this, 0);
		1153
		1154	if (destroyed ())
		1155	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
		1156	}
		1157
		1158	last = tmp;
		1159	}
		1160
		1161	/* last == NULL if there are no objects on this space */
		1162	//TODO: this makes little sense, why only update the topmost object?
		1163	if (!last)
		1164	map->at (x, y).flags_ = 0;
1189	else	1165	else
1190	op->env->inv = op->below;
1191
1192	if (op->below != NULL)
1193	op->below->above = op->above;
1194
1195	/* we set up values so that it could be inserted into
1196	* the map, but we don't actually do that - it is up
1197	* to the caller to decide what we want to do.
1198	*/
1199	op->x = op->env->x, op->y = op->env->y;
1200	op->map = op->env->map;
1201	op->above = NULL, op->below = NULL;
1202	op->env = NULL;
1203	return;
1204	}
1205
1206	/* If we get here, we are removing it from a map */
1207	if (op->map == NULL)
1208	return;
1209
1210	x = op->x;
1211	y = op->y;
1212	m = get_map_from_coord (op->map, &x, &y);
1213
1214	if (!m)
1215	{
1216	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1217	op->map->path, op->x, op->y);
1218	/* in old days, we used to set x and y to 0 and continue.
1219	* it seems if we get into this case, something is probablye
1220	* screwed up and should be fixed.
1221	*/
1222	abort ();
1223	}
1224	if (op->map != m)
1225	{
1226	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1227	op->map->path, m->path, op->x, op->y, x, y);
1228	}
1229
1230	/* Re did the following section of code - it looks like it had
1231	* lots of logic for things we no longer care about
1232	*/
1233
1234	/* link the object above us */
1235	if (op->above)
1236	op->above->below = op->below;
1237	else
1238	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1239
1240	/* Relink the object below us, if there is one */
1241	if (op->below)
1242	{
1243	op->below->above = op->above;
1244	}
1245	else
1246	{
1247	/* Nothing below, which means we need to relink map object for this space
1248	* use translated coordinates in case some oddness with map tiling is
1249	* evident
1250	*/
1251	if (GET_MAP_OB (m, x, y) != op)
1252	{
1253	dump_object (op);
1254	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",
1255	errmsg);
1256	dump_object (GET_MAP_OB (m, x, y));
1257	LOG (llevError, "%s\n", errmsg);
1258	}
1259	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */
1260	}
1261	op->above = NULL;
1262	op->below = NULL;
1263
1264	if (op->map->in_memory == MAP_SAVING)
1265	return;
1266
1267	tag = op->count;
1268	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1269	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1270	{
1271	/* No point updating the players look faces if he is the object
1272	* being removed.
1273	*/
1274
1275	if (tmp->type == PLAYER && tmp != op)
1276	{
1277	/* If a container that the player is currently using somehow gets
1278	* removed (most likely destroyed), update the player view
1279	* appropriately.
1280	*/
1281	if (tmp->container == op)
1282	{
1283	CLEAR_FLAG (op, FLAG_APPLIED);
1284	tmp->container = NULL;
1285	}
1286	tmp->contr->socket.update_look = 1;
1287	}
1288	/* See if player moving off should effect something */
1289	if (check_walk_off && ((op->move_type & tmp->move_off) && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1290	{
1291
1292	move_apply (tmp, op, NULL);
1293	if (was_destroyed (op, tag))
1294	{
1295	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name);
1296	}
1297	}
1298
1299	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1300
1301	if (tmp->above == tmp)
1302	tmp->above = NULL;
1303	last = tmp;
1304	}
1305	/* last == NULL of there are no objects on this space */
1306	if (last == NULL)
1307	{
1308	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1309	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1310	* those out anyways, and if there are any flags set right now, they won't
1311	* be correct anyways.
1312	*/
1313	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1314	update_position (op->map, op->x, op->y);
1315	}
1316	else
1317	update_object (last, UP_OBJ_REMOVE);	1166	update_object (last, UP_OBJ_REMOVE);
1318		1167
1319	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))	1168	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1320	update_all_los (op->map, op->x, op->y);	1169	update_all_los (map, x, y);
1321		1170	}
1322	}	1171	}
1323		1172
1324	/*	1173	/*
1325	* merge_ob(op,top):	1174	* merge_ob(op,top):
1326	*	1175	*
1327	* This function goes through all objects below and including top, and	1176	* This function goes through all objects below and including top, and
1328	* merges op to the first matching object.	1177	* merges op to the first matching object.
1329	* If top is NULL, it is calculated.	1178	* If top is NULL, it is calculated.
1330	* Returns pointer to object if it succeded in the merge, otherwise NULL	1179	* Returns pointer to object if it succeded in the merge, otherwise NULL
1331	*/	1180	*/
1332
1333	object *	1181	object *
1334	merge_ob (object *op, object *top)	1182	merge_ob (object *op, object *top)
1335	{	1183	{
1336	if (!op->nrof)	1184	if (!op->nrof)
1337	return 0;	1185	return 0;
1338	if (top == NULL)	1186
		1187	if (!top)
1339	for (top = op; top != NULL && top->above != NULL; top = top->above);	1188	for (top = op; top && top->above; top = top->above)
		1189	;
		1190
1340	for (; top != NULL; top = top->below)	1191	for (; top; top = top->below)
1341	{	1192	if (object::can_merge (op, top))
1342	if (top == op)
1343	continue;
1344	if (CAN_MERGE (op, top))
1345	{	1193	{
1346	top->nrof += op->nrof;	1194	top->nrof += op->nrof;
1347		1195
1348	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1196	if (object *pl = top->visible_to ())
1349	op->weight = 0; /* Don't want any adjustements now */	1197	esrv_update_item (UPD_NROF, pl, top);
1350	remove_ob (op);	1198
1351	free_object (op);	1199	op->weight = 0; // cancel the addition above
		1200	op->carrying = 0; // must be 0 already
		1201
		1202	op->destroy (1);
		1203
1352	return top;	1204	return top;
1353	}	1205	}
1354	}	1206
1355	return NULL;	1207	return 0;
1356	}	1208	}
1357		1209
		1210	void
		1211	object::expand_tail ()
		1212	{
		1213	if (more)
		1214	return;
		1215
		1216	object *prev = this;
		1217
		1218	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1219	{
		1220	object *op = arch_to_object (at);
		1221
		1222	op->name = name;
		1223	op->name_pl = name_pl;
		1224	op->title = title;
		1225
		1226	op->head = this;
		1227	prev->more = op;
		1228
		1229	prev = op;
		1230	}
		1231	}
		1232
1358	/*	1233	/*
1359	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1234	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1360	* job preparing multi-part monsters	1235	* job preparing multi-part monsters.
1361	*/	1236	*/
1362	object *	1237	object *
1363	insert_ob_in_map_at (object *op, mapstruct *m, object *originator, int flag, int x, int y)	1238	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1364	{	1239	{
1365	object *
1366	tmp;
1367
1368	if (op->head)
1369	op = op->head;
1370	for (tmp = op; tmp; tmp = tmp->more)	1240	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1371	{	1241	{
1372	tmp->x = x + tmp->arch->clone.x;	1242	tmp->x = x + tmp->arch->x;
1373	tmp->y = y + tmp->arch->clone.y;	1243	tmp->y = y + tmp->arch->y;
1374	}	1244	}
		1245
1375	return insert_ob_in_map (op, m, originator, flag);	1246	return insert_ob_in_map (op, m, originator, flag);
1376	}	1247	}
1377		1248
1378	/*	1249	/*
1379	* insert_ob_in_map (op, map, originator, flag):	1250	* insert_ob_in_map (op, map, originator, flag):
…		…
1393	* Return value:	1264	* Return value:
1394	* new object if 'op' was merged with other object	1265	* new object if 'op' was merged with other object
1395	* NULL if 'op' was destroyed	1266	* NULL if 'op' was destroyed
1396	* just 'op' otherwise	1267	* just 'op' otherwise
1397	*/	1268	*/
1398
1399	object *	1269	object *
1400	insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1270	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1401	{	1271	{
1402	object *tmp, *top, *floor = NULL;	1272	op->remove ();
1403	sint16 x, y;
1404
1405	if (QUERY_FLAG (op, FLAG_FREED))
1406	{
1407	LOG (llevError, "Trying to insert freed object!\n");
1408	return NULL;
1409	}
1410
1411	if (m == NULL)
1412	{
1413	dump_object (op);
1414	LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg);
1415	return op;
1416	}
1417
1418	if (out_of_map (m, op->x, op->y))
1419	{
1420	dump_object (op);
1421	LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg);
1422	#ifdef MANY_CORES
1423	/* Better to catch this here, as otherwise the next use of this object
1424	* is likely to cause a crash. Better to find out where it is getting
1425	* improperly inserted.
1426	*/
1427	abort ();
1428	#endif
1429	return op;
1430	}
1431
1432	if (!QUERY_FLAG (op, FLAG_REMOVED))
1433	{
1434	dump_object (op);
1435	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg);
1436	return op;
1437	}
1438
1439	if (op->more != NULL)
1440	{
1441	/* The part may be on a different map. */
1442
1443	object *
1444	more = op->more;
1445
1446	/* We really need the caller to normalize coordinates - if
1447	* we set the map, that doesn't work if the location is within
1448	* a map and this is straddling an edge. So only if coordinate
1449	* is clear wrong do we normalize it.
1450	*/
1451	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1452	{
1453	more->map = get_map_from_coord (m, &more->x, &more->y);
1454	}
1455	else if (!more->map)
1456	{
1457	/* For backwards compatibility - when not dealing with tiled maps,
1458	* more->map should always point to the parent.
1459	*/
1460	more->map = m;
1461	}
1462
1463	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1464	{
1465	if (!op->head)
1466	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1467	return NULL;
1468	}
1469	}
1470
1471	CLEAR_FLAG (op, FLAG_REMOVED);
1472		1273
1473	/* Ideally, the caller figures this out. However, it complicates a lot	1274	/* Ideally, the caller figures this out. However, it complicates a lot
1474	* of areas of callers (eg, anything that uses find_free_spot would now	1275	* of areas of callers (eg, anything that uses find_free_spot would now
1475	* need extra work	1276	* need extra work
1476	*/	1277	*/
1477	op->map = get_map_from_coord (m, &op->x, &op->y);	1278	if (!xy_normalise (m, op->x, op->y))
1478	x = op->x;	1279	{
1479	y = op->y;	1280	op->head_ ()->destroy (1);// remove head_ once all tail object destroyers found
		1281	return 0;
		1282	}
		1283
		1284	if (object *more = op->more)
		1285	if (!insert_ob_in_map (more, m, originator, flag))
		1286	return 0;
		1287
		1288	CLEAR_FLAG (op, FLAG_REMOVED);
		1289
		1290	op->map = m;
		1291	mapspace &ms = op->ms ();
1480		1292
1481	/* this has to be done after we translate the coordinates.	1293	/* this has to be done after we translate the coordinates.
1482	*/	1294	*/
1483	if (op->nrof && !(flag & INS_NO_MERGE))	1295	if (op->nrof && !(flag & INS_NO_MERGE))
1484	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1296	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1485	if (CAN_MERGE (op, tmp))	1297	if (object::can_merge (op, tmp))
1486	{	1298	{
		1299	// TODO: we actually want to update tmp, not op,
		1300	// but some caller surely breaks when we return tmp
		1301	// from here :/
1487	op->nrof += tmp->nrof;	1302	op->nrof += tmp->nrof;
1488	remove_ob (tmp);	1303	tmp->destroy (1);
1489	free_object (tmp);
1490	}	1304	}
1491		1305
1492	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1306	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1493	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1307	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1494		1308
1495	if (!QUERY_FLAG (op, FLAG_ALIVE))	1309	if (!QUERY_FLAG (op, FLAG_ALIVE))
1496	CLEAR_FLAG (op, FLAG_NO_STEAL);	1310	CLEAR_FLAG (op, FLAG_NO_STEAL);
1497		1311
1498	if (flag & INS_BELOW_ORIGINATOR)	1312	if (flag & INS_BELOW_ORIGINATOR)
1499	{	1313	{
1500	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)	1314	if (originator->map != op->map || originator->x != op->x || originator->y != op->y || !originator->is_on_map ())
1501	{	1315	{
1502	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1316	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1503	abort ();	1317	abort ();
1504	}	1318	}
1505		1319
1506	op->above = originator;	1320	op->above = originator;
1507	op->below = originator->below;	1321	op->below = originator->below;
1508
1509	if (op->below)
1510	op->below->above = op;
1511	else
1512	SET_MAP_OB (op->map, op->x, op->y, op);
1513
1514	/* since *below* originator, no need to update top */
1515	originator->below = op;	1322	originator->below = op;
		1323
		1324	*(op->below ? &op->below->above : &ms.bot) = op;
1516	}	1325	}
1517	else	1326	else
1518	{	1327	{
		1328	object *floor = 0;
		1329	object *top = ms.top;
		1330
1519	/* If there are other objects, then */	1331	/* If there are other objects, then */
1520	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1332	if (top)
1521	{	1333	{
1522	object *last = NULL;
1523
1524	/*	1334	/*
1525	* If there are multiple objects on this space, we do some trickier handling.	1335	* If there are multiple objects on this space, we do some trickier handling.
1526	* We've already dealt with merging if appropriate.	1336	* We've already dealt with merging if appropriate.
1527	* Generally, we want to put the new object on top. But if	1337	* Generally, we want to put the new object on top. But if
1528	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1338	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1531	* once we get to them. This reduces the need to traverse over all of	1341	* once we get to them. This reduces the need to traverse over all of
1532	* them when adding another one - this saves quite a bit of cpu time	1342	* them when adding another one - this saves quite a bit of cpu time
1533	* when lots of spells are cast in one area. Currently, it is presumed	1343	* when lots of spells are cast in one area. Currently, it is presumed
1534	* that flying non pickable objects are spell objects.	1344	* that flying non pickable objects are spell objects.
1535	*/	1345	*/
1536		1346	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1537	while (top != NULL)
1538	{	1347	{
1539	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1348	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
1540	floor = top;	1349	floor = tmp;
		1350
1541	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1351	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1542	{	1352	{
1543	/* We insert above top, so we want this object below this */	1353	/* We insert above top, so we want this object below this */
1544	top = top->below;	1354	top = tmp->below;
1545	break;	1355	break;
1546	}	1356	}
1547	last = top;	1357
1548	top = top->above;	1358	top = tmp;
1549	}	1359	}
1550	/* Don't want top to be NULL, so set it to the last valid object */
1551	top = last;
1552		1360
1553	/* We let update_position deal with figuring out what the space	1361	/* We let update_position deal with figuring out what the space
1554	* looks like instead of lots of conditions here.	1362	* looks like instead of lots of conditions here.
1555	* makes things faster, and effectively the same result.	1363	* makes things faster, and effectively the same result.
1556	*/	1364	*/
1557		1365
1558	/* Have object 'fall below' other objects that block view.	1366	/* Have object 'fall below' other objects that block view.
1559	* Unless those objects are exits, type 66	1367	* Unless those objects are exits.
1560	* If INS_ON_TOP is used, don't do this processing	1368	* If INS_ON_TOP is used, don't do this processing
1561	* Need to find the object that in fact blocks view, otherwise	1369	* Need to find the object that in fact blocks view, otherwise
1562	* stacking is a bit odd.	1370	* stacking is a bit odd.
1563	*/	1371	*/
1564	if (!(flag & INS_ON_TOP) &&	1372	if (!(flag & INS_ON_TOP)
1565	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1373	&& ms.flags () & P_BLOCKSVIEW
		1374	&& (op->face && !faces [op->face].visibility))
1566	{	1375	{
		1376	object *last;
		1377
1567	for (last = top; last != floor; last = last->below)	1378	for (last = top; last != floor; last = last->below)
1568	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1379	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1569	break;	1380	break;
		1381
1570	/* Check to see if we found the object that blocks view,	1382	/* Check to see if we found the object that blocks view,
1571	* and make sure we have a below pointer for it so that	1383	* and make sure we have a below pointer for it so that
1572	* we can get inserted below this one, which requires we	1384	* we can get inserted below this one, which requires we
1573	* set top to the object below us.	1385	* set top to the object below us.
1574	*/	1386	*/
1575	if (last && last->below && last != floor)	1387	if (last && last->below && last != floor)
1576	top = last->below;	1388	top = last->below;
1577	}	1389	}
1578	} /* If objects on this space */	1390	} /* If objects on this space */
1579		1391
1580	if (flag & INS_MAP_LOAD)
1581	top = GET_MAP_TOP (op->map, op->x, op->y);
1582
1583	if (flag & INS_ABOVE_FLOOR_ONLY)	1392	if (flag & INS_ABOVE_FLOOR_ONLY)
1584	top = floor;	1393	top = floor;
1585		1394
1586	/* Top is the object that our object (op) is going to get inserted above.	1395	/* Top is the object that our object (op) is going to get inserted above.
1587	*/	1396	*/
1588		1397
1589	/* First object on this space */	1398	/* no top found, insert on top */
1590	if (!top)	1399	if (!top)
1591	{	1400	{
1592	op->above = GET_MAP_OB (op->map, op->x, op->y);
1593
1594	if (op->above)
1595	op->above->below = op;	1401	op->above = 0;
1596
1597	op->below = NULL;	1402	op->below = ms.top;
1598	SET_MAP_OB (op->map, op->x, op->y, op);	1403	ms.top = op;
		1404
		1405	*(op->below ? &op->below->above : &ms.bot) = op;
1599	}	1406	}
1600	else	1407	else
1601	{ /* get inserted into the stack above top */	1408	{ /* get inserted into the stack above top */
1602	op->above = top->above;	1409	op->above = top->above;
1603
1604	if (op->above)
1605	op->above->below = op;	1410	top->above = op;
1606		1411
1607	op->below = top;	1412	op->below = top;
1608	top->above = op;	1413	*(op->above ? &op->above->below : &ms.top) = op;
1609	}	1414	}
1610
1611	if (op->above == NULL)
1612	SET_MAP_TOP (op->map, op->x, op->y, op);
1613	} /* else not INS_BELOW_ORIGINATOR */	1415	} /* else not INS_BELOW_ORIGINATOR */
1614		1416
1615	if (op->type == PLAYER)	1417	if (op->type == PLAYER)
		1418	{
1616	op->contr->do_los = 1;	1419	op->contr->do_los = 1;
		1420	++op->map->players;
		1421	op->map->touch ();
		1422	}
1617		1423
1618	/* If we have a floor, we know the player, if any, will be above	1424	op->map->dirty = true;
1619	* it, so save a few ticks and start from there.	1425
1620	*/	1426	if (object *pl = ms.player ())
1621	if (!(flag & INS_MAP_LOAD))	1427	//TODO: the floorbox prev/next might need updating
1622	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1428	//esrv_send_item (pl, op);
1623	if (tmp->type == PLAYER)	1429	//TODO: update floorbox to preserve ordering
1624	tmp->contr->socket.update_look = 1;	1430	if (pl->contr->ns)
		1431	pl->contr->ns->floorbox_update ();
1625		1432
1626	/* If this object glows, it may affect lighting conditions that are	1433	/* If this object glows, it may affect lighting conditions that are
1627	* visible to others on this map. But update_all_los is really	1434	* visible to others on this map. But update_all_los is really
1628	* an inefficient way to do this, as it means los for all players	1435	* an inefficient way to do this, as it means los for all players
1629	* on the map will get recalculated. The players could very well	1436	* on the map will get recalculated. The players could very well
1630	* be far away from this change and not affected in any way -	1437	* be far away from this change and not affected in any way -
1631	* this should get redone to only look for players within range,	1438	* this should get redone to only look for players within range,
1632	* or just updating the P_NEED_UPDATE for spaces within this area	1439	* or just updating the P_UPTODATE for spaces within this area
1633	* of effect may be sufficient.	1440	* of effect may be sufficient.
1634	*/	1441	*/
1635	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1442	if (op->map->darkness && (op->glow_radius != 0))
1636	update_all_los (op->map, op->x, op->y);	1443	update_all_los (op->map, op->x, op->y);
1637
1638		1444
1639	/* updates flags (blocked, alive, no magic, etc) for this map space */	1445	/* updates flags (blocked, alive, no magic, etc) for this map space */
1640	update_object (op, UP_OBJ_INSERT);	1446	update_object (op, UP_OBJ_INSERT);
1641		1447
		1448	INVOKE_OBJECT (INSERT, op);
1642		1449
1643	/* Don't know if moving this to the end will break anything. However,	1450	/* Don't know if moving this to the end will break anything. However,
1644	* we want to have update_look set above before calling this.	1451	* we want to have floorbox_update called before calling this.
1645	*	1452	*
1646	* check_move_on() must be after this because code called from	1453	* check_move_on() must be after this because code called from
1647	* check_move_on() depends on correct map flags (so functions like	1454	* check_move_on() depends on correct map flags (so functions like
1648	* blocked() and wall() work properly), and these flags are updated by	1455	* blocked() and wall() work properly), and these flags are updated by
1649	* update_object().	1456	* update_object().
1650	*/	1457	*/
1651		1458
1652	/* if this is not the head or flag has been passed, don't check walk on status */	1459	/* if this is not the head or flag has been passed, don't check walk on status */
1653	if (!(flag & INS_NO_WALK_ON) && !op->head)	1460	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1654	{	1461	{
1655	if (check_move_on (op, originator))	1462	if (check_move_on (op, originator))
1656	return NULL;	1463	return 0;
1657		1464
1658	/* If we are a multi part object, lets work our way through the check	1465	/* If we are a multi part object, lets work our way through the check
1659	* walk on's.	1466	* walk on's.
1660	*/	1467	*/
1661	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1468	for (object *tmp = op->more; tmp; tmp = tmp->more)
1662	if (check_move_on (tmp, originator))	1469	if (check_move_on (tmp, originator))
1663	return NULL;	1470	return 0;
1664	}	1471	}
1665		1472
1666	return op;	1473	return op;
1667	}	1474	}
1668		1475
1669	/* this function inserts an object in the map, but if it	1476	/* this function inserts an object in the map, but if it
1670	* finds an object of its own type, it'll remove that one first.	1477	* finds an object of its own type, it'll remove that one first.
1671	* op is the object to insert it under: supplies x and the map.	1478	* op is the object to insert it under: supplies x and the map.
1672	*/	1479	*/
1673	void	1480	void
1674	replace_insert_ob_in_map (const char *arch_string, object *op)	1481	replace_insert_ob_in_map (const char *arch_string, object *op)
1675	{	1482	{
1676	object *tmp;
1677	object *tmp1;
1678
1679	/* first search for itself and remove any old instances */	1483	/* first search for itself and remove any old instances */
1680		1484
1681	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1485	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1682	{
1683	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1486	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1684	{	1487	tmp->destroy (1);
1685	remove_ob (tmp);
1686	free_object (tmp);
1687	}
1688	}
1689		1488
1690	tmp1 = arch_to_object (find_archetype (arch_string));	1489	object *tmp = arch_to_object (archetype::find (arch_string));
1691		1490
1692	tmp1->x = op->x;	1491	tmp->x = op->x;
1693	tmp1->y = op->y;	1492	tmp->y = op->y;
		1493
1694	insert_ob_in_map (tmp1, op->map, op, 0);	1494	insert_ob_in_map (tmp, op->map, op, 0);
1695	}	1495	}
1696
1697	/*
1698	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1699	* is returned contains nr objects, and the remaining parts contains
1700	* the rest (or is removed and freed if that number is 0).
1701	* On failure, NULL is returned, and the reason put into the
1702	* global static errmsg array.
1703	*/
1704		1496
1705	object *	1497	object *
1706	get_split_ob (object *orig_ob, uint32 nr)	1498	object::insert_at (object *where, object *originator, int flags)
1707	{	1499	{
1708	object *	1500	if (where->env)
1709	newob;	1501	return where->env->insert (this);
1710	int	1502	else
1711	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1503	return where->map->insert (this, where->x, where->y, originator, flags);
1712
1713	if (orig_ob->nrof < nr)
1714	{
1715	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1716	return NULL;
1717	}
1718	newob = object_create_clone (orig_ob);
1719	if ((orig_ob->nrof -= nr) < 1)
1720	{
1721	if (!is_removed)
1722	remove_ob (orig_ob);
1723	free_object2 (orig_ob, 1);
1724	}
1725	else if (!is_removed)
1726	{
1727	if (orig_ob->env != NULL)
1728	sub_weight (orig_ob->env, orig_ob->weight * nr);
1729	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1730	{
1731	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1732	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1733	return NULL;
1734	}
1735	}
1736	newob->nrof = nr;
1737
1738	return newob;
1739	}	1504	}
1740		1505
1741	/*	1506	/*
1742	* decrease_ob_nr(object, number) decreases a specified number from	1507	* decrease(object, number) decreases a specified number from
1743	* the amount of an object. If the amount reaches 0, the object	1508	* the amount of an object. If the amount reaches 0, the object
1744	* is subsequently removed and freed.	1509	* is subsequently removed and freed.
1745	*	1510	*
1746	* Return value: 'op' if something is left, NULL if the amount reached 0	1511	* Return value: 'op' if something is left, NULL if the amount reached 0
1747	*/	1512	*/
		1513	bool
		1514	object::decrease (sint32 nr)
		1515	{
		1516	if (!nr)
		1517	return true;
1748		1518
		1519	nr = min (nr, nrof);
		1520
		1521	nrof -= nr;
		1522
		1523	if (nrof)
		1524	{
		1525	adjust_weight (env, -weight * nr); // carrying == 0
		1526
		1527	if (object *pl = visible_to ())
		1528	esrv_update_item (UPD_NROF, pl, this);
		1529
		1530	return true;
		1531	}
		1532	else
		1533	{
		1534	destroy (1);
		1535	return false;
		1536	}
		1537	}
		1538
		1539	/*
		1540	* split(ob,nr) splits up ob into two parts. The part which
		1541	* is returned contains nr objects, and the remaining parts contains
		1542	* the rest (or is removed and returned if that number is 0).
		1543	* On failure, NULL is returned.
		1544	*/
1749	object *	1545	object *
1750	decrease_ob_nr (object *op, uint32 i)	1546	object::split (sint32 nr)
1751	{	1547	{
1752	object *	1548	int have = number_of ();
1753	tmp;
1754	player *
1755	pl;
1756		1549
1757	if (i == 0) /* objects with op->nrof require this check */	1550	if (have < nr)
1758	return op;	1551	return 0;
1759		1552	else if (have == nr)
1760	if (i > op->nrof)
1761	i = op->nrof;
1762
1763	if (QUERY_FLAG (op, FLAG_REMOVED))
1764	{
1765	op->nrof -= i;
1766	}	1553	{
1767	else if (op->env != NULL)
1768	{
1769	/* is this object in the players inventory, or sub container
1770	* therein?
1771	*/
1772	tmp = is_player_inv (op->env);
1773	/* nope. Is this a container the player has opened?
1774	* If so, set tmp to that player.
1775	* IMO, searching through all the players will mostly
1776	* likely be quicker than following op->env to the map,
1777	* and then searching the map for a player.
1778	*/
1779	if (!tmp)
1780	{
1781	for (pl = first_player; pl; pl = pl->next)
1782	if (pl->ob->container == op->env)
1783	break;
1784	if (pl)
1785	tmp = pl->ob;
1786	else
1787	tmp = NULL;
1788	}
1789
1790	if (i < op->nrof)
1791	{
1792	sub_weight (op->env, op->weight * i);
1793	op->nrof -= i;
1794	if (tmp)
1795	{
1796	esrv_send_item (tmp, op);
1797	}
1798	}
1799	else
1800	{
1801	remove_ob (op);	1554	remove ();
1802	op->nrof = 0;	1555	return this;
1803	if (tmp)
1804	{
1805	esrv_del_item (tmp->contr, op->count);
1806	}
1807	}
1808	}	1556	}
1809	else	1557	else
1810	{	1558	{
1811	object *	1559	decrease (nr);
1812	above = op->above;
1813		1560
1814	if (i < op->nrof)	1561	object *op = deep_clone ();
1815	{
1816	op->nrof -= i;
1817	}
1818	else
1819	{
1820	remove_ob (op);
1821	op->nrof = 0;	1562	op->nrof = nr;
1822	}
1823	/* Since we just removed op, op->above is null */
1824	for (tmp = above; tmp != NULL; tmp = tmp->above)
1825	if (tmp->type == PLAYER)
1826	{
1827	if (op->nrof)
1828	esrv_send_item (tmp, op);
1829	else
1830	esrv_del_item (tmp->contr, op->count);
1831	}
1832	}
1833
1834	if (op->nrof)
1835	{
1836	return op;	1563	return op;
1837	}	1564	}
1838	else	1565	}
		1566
		1567	object *
		1568	insert_ob_in_ob (object *op, object *where)
		1569	{
		1570	if (!where)
1839	{	1571	{
1840	free_object (op);	1572	char *dump = dump_object (op);
		1573	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1574	free (dump);
1841	return NULL;	1575	return op;
1842	}
1843	}
1844
1845	/*
1846	* add_weight(object, weight) adds the specified weight to an object,
1847	* and also updates how much the environment(s) is/are carrying.
1848	*/
1849
1850	void
1851	add_weight (object *op, signed long weight)
1852	{
1853	while (op != NULL)
1854	{	1576	}
1855	if (op->type == CONTAINER)	1577
1856	{	1578	if (where->head_ () != where)
1857	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1858	}
1859	op->carrying += weight;
1860	op = op->env;
1861	}	1579	{
1862	}	1580	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1581	where = where->head;
		1582	}
1863		1583
		1584	return where->insert (op);
		1585	}
		1586
1864	/*	1587	/*
1865	* insert_ob_in_ob(op,environment):	1588	* env->insert (op)
1866	* This function inserts the object op in the linked list	1589	* This function inserts the object op in the linked list
1867	* inside the object environment.	1590	* inside the object environment.
1868	*	1591	*
1869	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1870	* the inventory at the last position or next to other objects of the same
1871	* type.
1872	* Frank: Now sorted by type, archetype and magic!
1873	*
1874	* The function returns now pointer to inserted item, and return value can	1592	* The function returns now pointer to inserted item, and return value can
1875	* be != op, if items are merged. -Tero	1593	* be != op, if items are merged. -Tero
1876	*/	1594	*/
1877
1878	object *	1595	object *
1879	insert_ob_in_ob (object *op, object *where)	1596	object::insert (object *op)
1880	{	1597	{
1881	object *
1882	tmp, *
1883	otmp;
1884
1885	if (!QUERY_FLAG (op, FLAG_REMOVED))
1886	{
1887	dump_object (op);
1888	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", errmsg);
1889	return op;
1890	}
1891	if (where == NULL)
1892	{
1893	dump_object (op);
1894	LOG (llevError, "Trying to put object in NULL.\n%s\n", errmsg);
1895	return op;
1896	}
1897	if (where->head)
1898	{
1899	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1900	where = where->head;
1901	}
1902	if (op->more)	1598	if (op->more)
1903	{	1599	{
1904	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1600	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1905	return op;	1601	return op;
1906	}	1602	}
1907	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1603
1908	CLEAR_FLAG (op, FLAG_REMOVED);	1604	op->remove ();
		1605
		1606	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1607
1909	if (op->nrof)	1608	if (op->nrof)
1910	{
1911	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1609	for (object *tmp = inv; tmp; tmp = tmp->below)
1912	if (CAN_MERGE (tmp, op))	1610	if (object::can_merge (tmp, op))
1913	{	1611	{
1914	/* return the original object and remove inserted object	1612	/* return the original object and remove inserted object
1915	(client needs the original object) */	1613	(client needs the original object) */
1916	tmp->nrof += op->nrof;	1614	tmp->nrof += op->nrof;
1917	/* Weight handling gets pretty funky. Since we are adding to	1615
1918	* tmp->nrof, we need to increase the weight.	1616	if (object *pl = tmp->visible_to ())
1919	*/	1617	esrv_update_item (UPD_NROF, pl, tmp);
1920	add_weight (where, op->weight * op->nrof);	1618
1921	SET_FLAG (op, FLAG_REMOVED);	1619	adjust_weight (this, op->total_weight ());
1922	free_object (op); /* free the inserted object */	1620
		1621	op->destroy (1);
1923	op = tmp;	1622	op = tmp;
1924	remove_ob (op); /* and fix old object's links */	1623	goto inserted;
1925	CLEAR_FLAG (op, FLAG_REMOVED);
1926	break;
1927	}	1624	}
1928		1625
1929	/* I assume combined objects have no inventory	1626	op->owner = 0; // it's his/hers now. period.
1930	* We add the weight - this object could have just been removed
1931	* (if it was possible to merge). calling remove_ob will subtract
1932	* the weight, so we need to add it in again, since we actually do
1933	* the linking below
1934	*/
1935	add_weight (where, op->weight * op->nrof);
1936	}
1937	else
1938	add_weight (where, (op->weight + op->carrying));
1939
1940	otmp = is_player_inv (where);
1941	if (otmp && otmp->contr != NULL)
1942	{
1943	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1944	fix_player (otmp);
1945	}
1946
1947	op->map = NULL;	1627	op->map = 0;
1948	op->env = where;	1628	op->x = 0;
		1629	op->y = 0;
		1630
1949	op->above = NULL;	1631	op->above = 0;
1950	op->below = NULL;	1632	op->below = inv;
1951	op->x = 0, op->y = 0;	1633	op->env = this;
1952		1634
		1635	if (inv)
		1636	inv->above = op;
		1637
		1638	inv = op;
		1639
		1640	op->flag [FLAG_REMOVED] = 0;
		1641
		1642	if (object *pl = op->visible_to ())
		1643	esrv_send_item (pl, op);
		1644
		1645	adjust_weight (this, op->total_weight ());
		1646
		1647	inserted:
1953	/* reset the light list and los of the players on the map */	1648	/* reset the light list and los of the players on the map */
1954	if ((op->glow_radius != 0) && where->map)	1649	if (op->glow_radius && map && map->darkness)
1955	{	1650	update_all_los (map, x, y);
1956	#ifdef DEBUG_LIGHTS
1957	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1958	#endif /* DEBUG_LIGHTS */
1959	if (MAP_DARKNESS (where->map))
1960	update_all_los (where->map, where->x, where->y);
1961	}
1962		1651
1963	/* Client has no idea of ordering so lets not bother ordering it here.	1652	// if this is a player's inventory, update stats
1964	* It sure simplifies this function...	1653	if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1965	*/	1654	update_stats ();
1966	if (where->inv == NULL)	1655
1967	where->inv = op;	1656	INVOKE_OBJECT (INSERT, this);
1968	else	1657
1969	{
1970	op->below = where->inv;
1971	op->below->above = op;
1972	where->inv = op;
1973	}
1974	return op;	1658	return op;
1975	}	1659	}
1976		1660
1977	/*	1661	/*
1978	* Checks if any objects has a move_type that matches objects	1662	* Checks if any objects has a move_type that matches objects
…		…
1992	*	1676	*
1993	* MSW 2001-07-08: Check all objects on space, not just those below	1677	* MSW 2001-07-08: Check all objects on space, not just those below
1994	* object being inserted. insert_ob_in_map may not put new objects	1678	* object being inserted. insert_ob_in_map may not put new objects
1995	* on top.	1679	* on top.
1996	*/	1680	*/
1997
1998	int	1681	int
1999	check_move_on (object *op, object *originator)	1682	check_move_on (object *op, object *originator)
2000	{	1683	{
2001	object *	1684	object *tmp;
2002	tmp;	1685	maptile *m = op->map;
2003	tag_t
2004	tag;
2005	mapstruct *
2006	m = op->map;
2007	int
2008	x = op->x, y = op->y;	1686	int x = op->x, y = op->y;
2009	MoveType	1687
2010	move_on,	1688	MoveType move_on, move_slow, move_block;
2011	move_slow,
2012	move_block;
2013		1689
2014	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1690	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2015	return 0;	1691	return 0;
2016
2017	tag = op->count;
2018		1692
2019	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1693	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
2020	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1694	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
2021	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1695	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
2022		1696
…		…
2038		1712
2039	/* The objects have to be checked from top to bottom.	1713	/* The objects have to be checked from top to bottom.
2040	* Hence, we first go to the top:	1714	* Hence, we first go to the top:
2041	*/	1715	*/
2042		1716
2043	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1717	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
2044	{	1718	{
2045	/* Trim the search when we find the first other spell effect	1719	/* Trim the search when we find the first other spell effect
2046	* this helps performance so that if a space has 50 spell objects,	1720	* this helps performance so that if a space has 50 spell objects,
2047	* we don't need to check all of them.	1721	* we don't need to check all of them.
2048	*/	1722	*/
2049	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))	1723	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
2050	break;	1724	break;
2051	}	1725	}
		1726
2052	for (; tmp != NULL; tmp = tmp->below)	1727	for (; tmp; tmp = tmp->below)
2053	{	1728	{
2054	if (tmp == op)	1729	if (tmp == op)
2055	continue; /* Can't apply yourself */	1730	continue; /* Can't apply yourself */
2056		1731
2057	/* Check to see if one of the movement types should be slowed down.	1732	/* Check to see if one of the movement types should be slowed down.
…		…
2065	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1740	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2066	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1741	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
2067	{	1742	{
2068		1743
2069	float	1744	float
2070	diff;
2071
2072	diff = tmp->move_slow_penalty * FABS (op->speed);	1745	diff = tmp->move_slow_penalty * fabs (op->speed);
		1746
2073	if (op->type == PLAYER)	1747	if (op->type == PLAYER)
2074	{
2075	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1748	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
2076	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1749	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
2077	{
2078	diff /= 4.0;	1750	diff /= 4.0;
2079	}	1751
2080	}
2081	op->speed_left -= diff;	1752	op->speed_left -= diff;
2082	}	1753	}
2083	}	1754	}
2084		1755
2085	/* Basically same logic as above, except now for actual apply. */	1756	/* Basically same logic as above, except now for actual apply. */
2086	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1757	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2087	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))	1758	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2088	{	1759	{
2089
2090	move_apply (tmp, op, originator);	1760	move_apply (tmp, op, originator);
		1761
2091	if (was_destroyed (op, tag))	1762	if (op->destroyed ())
2092	return 1;	1763	return 1;
2093		1764
2094	/* what the person/creature stepped onto has moved the object	1765	/* what the person/creature stepped onto has moved the object
2095	* someplace new. Don't process any further - if we did,	1766	* someplace new. Don't process any further - if we did,
2096	* have a feeling strange problems would result.	1767	* have a feeling strange problems would result.
2097	*/	1768	*/
2098	if (op->map != m || op->x != x || op->y != y)	1769	if (op->map != m || op->x != x || op->y != y)
2099	return 0;	1770	return 0;
2100	}	1771	}
2101	}	1772	}
		1773
2102	return 0;	1774	return 0;
2103	}	1775	}
2104		1776
2105	/*	1777	/*
2106	* present_arch(arch, map, x, y) searches for any objects with	1778	* present_arch(arch, map, x, y) searches for any objects with
2107	* a matching archetype at the given map and coordinates.	1779	* a matching archetype at the given map and coordinates.
2108	* The first matching object is returned, or NULL if none.	1780	* The first matching object is returned, or NULL if none.
2109	*/	1781	*/
2110
2111	object *	1782	object *
2112	present_arch (const archetype *at, mapstruct *m, int x, int y)	1783	present_arch (const archetype *at, maptile *m, int x, int y)
2113	{	1784	{
2114	object *
2115	tmp;
2116
2117	if (m == NULL || out_of_map (m, x, y))	1785	if (!m || out_of_map (m, x, y))
2118	{	1786	{
2119	LOG (llevError, "Present_arch called outside map.\n");	1787	LOG (llevError, "Present_arch called outside map.\n");
2120	return NULL;	1788	return NULL;
2121	}	1789	}
2122	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1790
2123	if (tmp->arch == at)	1791	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1792	if (tmp->arch->archname == at->archname)
2124	return tmp;	1793	return tmp;
		1794
2125	return NULL;	1795	return NULL;
2126	}	1796	}
2127		1797
2128	/*	1798	/*
2129	* present(type, map, x, y) searches for any objects with	1799	* present(type, map, x, y) searches for any objects with
2130	* a matching type variable at the given map and coordinates.	1800	* a matching type variable at the given map and coordinates.
2131	* The first matching object is returned, or NULL if none.	1801	* The first matching object is returned, or NULL if none.
2132	*/	1802	*/
2133
2134	object *	1803	object *
2135	present (unsigned char type, mapstruct *m, int x, int y)	1804	present (unsigned char type, maptile *m, int x, int y)
2136	{	1805	{
2137	object *
2138	tmp;
2139
2140	if (out_of_map (m, x, y))	1806	if (out_of_map (m, x, y))
2141	{	1807	{
2142	LOG (llevError, "Present called outside map.\n");	1808	LOG (llevError, "Present called outside map.\n");
2143	return NULL;	1809	return NULL;
2144	}	1810	}
2145	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1811
		1812	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2146	if (tmp->type == type)	1813	if (tmp->type == type)
2147	return tmp;	1814	return tmp;
		1815
2148	return NULL;	1816	return NULL;
2149	}	1817	}
2150		1818
2151	/*	1819	/*
2152	* present_in_ob(type, object) searches for any objects with	1820	* present_in_ob(type, object) searches for any objects with
2153	* a matching type variable in the inventory of the given object.	1821	* a matching type variable in the inventory of the given object.
2154	* The first matching object is returned, or NULL if none.	1822	* The first matching object is returned, or NULL if none.
2155	*/	1823	*/
2156
2157	object *	1824	object *
2158	present_in_ob (unsigned char type, const object *op)	1825	present_in_ob (unsigned char type, const object *op)
2159	{	1826	{
2160	object *
2161	tmp;
2162
2163	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1827	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2164	if (tmp->type == type)	1828	if (tmp->type == type)
2165	return tmp;	1829	return tmp;
		1830
2166	return NULL;	1831	return NULL;
2167	}	1832	}
2168		1833
2169	/*	1834	/*
2170	* present_in_ob (type, str, object) searches for any objects with	1835	* present_in_ob (type, str, object) searches for any objects with
…		…
2178	* str is the string to match against. Note that we match against	1843	* str is the string to match against. Note that we match against
2179	* the object name, not the archetype name. this is so that the	1844	* the object name, not the archetype name. this is so that the
2180	* spell code can use one object type (force), but change it's name	1845	* spell code can use one object type (force), but change it's name
2181	* to be unique.	1846	* to be unique.
2182	*/	1847	*/
2183
2184	object *	1848	object *
2185	present_in_ob_by_name (int type, const char *str, const object *op)	1849	present_in_ob_by_name (int type, const char *str, const object *op)
2186	{	1850	{
2187	object *
2188	tmp;
2189
2190	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1851	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2191	{
2192	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1852	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2193	return tmp;	1853	return tmp;
2194	}	1854
2195	return NULL;	1855	return 0;
2196	}	1856	}
2197		1857
2198	/*	1858	/*
2199	* present_arch_in_ob(archetype, object) searches for any objects with	1859	* present_arch_in_ob(archetype, object) searches for any objects with
2200	* a matching archetype in the inventory of the given object.	1860	* a matching archetype in the inventory of the given object.
2201	* The first matching object is returned, or NULL if none.	1861	* The first matching object is returned, or NULL if none.
2202	*/	1862	*/
2203
2204	object *	1863	object *
2205	present_arch_in_ob (const archetype *at, const object *op)	1864	present_arch_in_ob (const archetype *at, const object *op)
2206	{	1865	{
2207	object *
2208	tmp;
2209
2210	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1866	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2211	if (tmp->arch == at)	1867	if (tmp->arch->archname == at->archname)
2212	return tmp;	1868	return tmp;
		1869
2213	return NULL;	1870	return NULL;
2214	}	1871	}
2215		1872
2216	/*	1873	/*
2217	* activate recursively a flag on an object inventory	1874	* activate recursively a flag on an object inventory
2218	*/	1875	*/
2219	void	1876	void
2220	flag_inv (object *op, int flag)	1877	flag_inv (object *op, int flag)
2221	{	1878	{
2222	object *
2223	tmp;
2224
2225	if (op->inv)
2226	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1879	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2227	{	1880	{
2228	SET_FLAG (tmp, flag);	1881	SET_FLAG (tmp, flag);
2229	flag_inv (tmp, flag);	1882	flag_inv (tmp, flag);
2230	}	1883	}
2231	} /*	1884	}
		1885
		1886	/*
2232	* desactivate recursively a flag on an object inventory	1887	* deactivate recursively a flag on an object inventory
2233	*/	1888	*/
2234	void	1889	void
2235	unflag_inv (object *op, int flag)	1890	unflag_inv (object *op, int flag)
2236	{	1891	{
2237	object *
2238	tmp;
2239
2240	if (op->inv)
2241	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1892	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2242	{	1893	{
2243	CLEAR_FLAG (tmp, flag);	1894	CLEAR_FLAG (tmp, flag);
2244	unflag_inv (tmp, flag);	1895	unflag_inv (tmp, flag);
2245	}	1896	}
2246	}
2247
2248	/*
2249	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2250	* all it's inventory (recursively).
2251	* If checksums are used, a player will get set_cheat called for
2252	* him/her-self and all object carried by a call to this function.
2253	*/
2254
2255	void
2256	set_cheat (object *op)
2257	{
2258	SET_FLAG (op, FLAG_WAS_WIZ);
2259	flag_inv (op, FLAG_WAS_WIZ);
2260	}	1897	}
2261		1898
2262	/*	1899	/*
2263	* find_free_spot(object, map, x, y, start, stop) will search for	1900	* find_free_spot(object, map, x, y, start, stop) will search for
2264	* a spot at the given map and coordinates which will be able to contain	1901	* a spot at the given map and coordinates which will be able to contain
…		…
2266	* to search (see the freearr_x/y[] definition).	1903	* to search (see the freearr_x/y[] definition).
2267	* It returns a random choice among the alternatives found.	1904	* It returns a random choice among the alternatives found.
2268	* start and stop are where to start relative to the free_arr array (1,9	1905	* start and stop are where to start relative to the free_arr array (1,9
2269	* does all 4 immediate directions). This returns the index into the	1906	* does all 4 immediate directions). This returns the index into the
2270	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1907	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2271	* Note - this only checks to see if there is space for the head of the
2272	* object - if it is a multispace object, this should be called for all
2273	* pieces.
2274	* Note2: This function does correctly handle tiled maps, but does not	1908	* Note: This function does correctly handle tiled maps, but does not
2275	* inform the caller. However, insert_ob_in_map will update as	1909	* inform the caller. However, insert_ob_in_map will update as
2276	* necessary, so the caller shouldn't need to do any special work.	1910	* necessary, so the caller shouldn't need to do any special work.
2277	* Note - updated to take an object instead of archetype - this is necessary	1911	* Note - updated to take an object instead of archetype - this is necessary
2278	* because arch_blocked (now ob_blocked) needs to know the movement type	1912	* because arch_blocked (now ob_blocked) needs to know the movement type
2279	* to know if the space in question will block the object. We can't use	1913	* to know if the space in question will block the object. We can't use
2280	* the archetype because that isn't correct if the monster has been	1914	* the archetype because that isn't correct if the monster has been
2281	* customized, changed states, etc.	1915	* customized, changed states, etc.
2282	*/	1916	*/
2283
2284	int	1917	int
2285	find_free_spot (const object *ob, mapstruct *m, int x, int y, int start, int stop)	1918	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2286	{	1919	{
2287	int
2288	i,
2289	index = 0, flag;
2290	static int
2291	altern[SIZEOFFREE];	1920	int altern[SIZEOFFREE];
		1921	int index = 0, flag;
2292		1922
2293	for (i = start; i < stop; i++)	1923	for (int i = start; i < stop; i++)
2294	{	1924	{
2295	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1925	mapxy pos (m, x, y); pos.move (i);
2296	if (!flag)	1926
		1927	if (!pos.normalise ())
		1928	continue;
		1929
		1930	mapspace &ms = *pos;
		1931
		1932	if (ms.flags () & P_IS_ALIVE)
		1933	continue;
		1934
		1935	/* However, often
		1936	* ob doesn't have any move type (when used to place exits)
		1937	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1938	*/
		1939	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1940	{
2297	altern[index++] = i;	1941	altern [index++] = i;
		1942	continue;
		1943	}
2298		1944
2299	/* Basically, if we find a wall on a space, we cut down the search size.	1945	/* Basically, if we find a wall on a space, we cut down the search size.
2300	* In this way, we won't return spaces that are on another side of a wall.	1946	* In this way, we won't return spaces that are on another side of a wall.
2301	* This mostly work, but it cuts down the search size in all directions -	1947	* This mostly work, but it cuts down the search size in all directions -
2302	* if the space being examined only has a wall to the north and empty	1948	* if the space being examined only has a wall to the north and empty
2303	* spaces in all the other directions, this will reduce the search space	1949	* spaces in all the other directions, this will reduce the search space
2304	* to only the spaces immediately surrounding the target area, and	1950	* to only the spaces immediately surrounding the target area, and
2305	* won't look 2 spaces south of the target space.	1951	* won't look 2 spaces south of the target space.
2306	*/	1952	*/
2307	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	1953	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1954	{
2308	stop = maxfree[i];	1955	stop = maxfree[i];
		1956	continue;
		1957	}
		1958
		1959	/* Note it is intentional that we check ob - the movement type of the
		1960	* head of the object should correspond for the entire object.
		1961	*/
		1962	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1963	continue;
		1964
		1965	if (ob->blocked (m, pos.x, pos.y))
		1966	continue;
		1967
		1968	altern [index++] = i;
2309	}	1969	}
		1970
2310	if (!index)	1971	if (!index)
2311	return -1;	1972	return -1;
		1973
2312	return altern[RANDOM () % index];	1974	return altern [rndm (index)];
2313	}	1975	}
2314		1976
2315	/*	1977	/*
2316	* find_first_free_spot(archetype, mapstruct, x, y) works like	1978	* find_first_free_spot(archetype, maptile, x, y) works like
2317	* find_free_spot(), but it will search max number of squares.	1979	* find_free_spot(), but it will search max number of squares.
2318	* But it will return the first available spot, not a random choice.	1980	* But it will return the first available spot, not a random choice.
2319	* Changed 0.93.2: Have it return -1 if there is no free spot available.	1981	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2320	*/	1982	*/
2321
2322	int	1983	int
2323	find_first_free_spot (const object *ob, mapstruct *m, int x, int y)	1984	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2324	{	1985	{
2325	int
2326	i;
2327
2328	for (i = 0; i < SIZEOFFREE; i++)	1986	for (int i = 0; i < SIZEOFFREE; i++)
2329	{
2330	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	1987	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2331	return i;	1988	return i;
2332	}	1989
2333	return -1;	1990	return -1;
2334	}	1991	}
2335		1992
2336	/*	1993	/*
2337	* The function permute(arr, begin, end) randomly reorders the array	1994	* The function permute(arr, begin, end) randomly reorders the array
2338	* arr[begin..end-1].	1995	* arr[begin..end-1].
		1996	* now uses a fisher-yates shuffle, old permute was broken
2339	*/	1997	*/
2340	static void	1998	static void
2341	permute (int *arr, int begin, int end)	1999	permute (int *arr, int begin, int end)
2342	{	2000	{
2343	int	2001	arr += begin;
2344	i,
2345	j,
2346	tmp,
2347	len;
2348
2349	len = end - begin;	2002	end -= begin;
2350	for (i = begin; i < end; i++)
2351	{
2352	j = begin + RANDOM () % len;
2353		2003
2354	tmp = arr[i];	2004	while (--end)
2355	arr[i] = arr[j];	2005	swap (arr [end], arr [rndm (end + 1)]);
2356	arr[j] = tmp;
2357	}
2358	}	2006	}
2359		2007
2360	/* new function to make monster searching more efficient, and effective!	2008	/* new function to make monster searching more efficient, and effective!
2361	* This basically returns a randomized array (in the passed pointer) of	2009	* This basically returns a randomized array (in the passed pointer) of
2362	* the spaces to find monsters. In this way, it won't always look for	2010	* the spaces to find monsters. In this way, it won't always look for
…		…
2365	* the 3x3 area will be searched, just not in a predictable order.	2013	* the 3x3 area will be searched, just not in a predictable order.
2366	*/	2014	*/
2367	void	2015	void
2368	get_search_arr (int *search_arr)	2016	get_search_arr (int *search_arr)
2369	{	2017	{
2370	int	2018	int i;
2371	i;
2372		2019
2373	for (i = 0; i < SIZEOFFREE; i++)	2020	for (i = 0; i < SIZEOFFREE; i++)
2374	{
2375	search_arr[i] = i;	2021	search_arr[i] = i;
2376	}
2377		2022
2378	permute (search_arr, 1, SIZEOFFREE1 + 1);	2023	permute (search_arr, 1, SIZEOFFREE1 + 1);
2379	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2024	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2380	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2025	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2381	}	2026	}
…		…
2390	* Perhaps incorrectly, but I'm making the assumption that exclude	2035	* Perhaps incorrectly, but I'm making the assumption that exclude
2391	* is actually want is going to try and move there. We need this info	2036	* is actually want is going to try and move there. We need this info
2392	* because we have to know what movement the thing looking to move	2037	* because we have to know what movement the thing looking to move
2393	* there is capable of.	2038	* there is capable of.
2394	*/	2039	*/
2395
2396	int	2040	int
2397	find_dir (mapstruct *m, int x, int y, object *exclude)	2041	find_dir (maptile *m, int x, int y, object *exclude)
2398	{	2042	{
2399	int
2400	i,
2401	max = SIZEOFFREE, mflags;	2043	int i, max = SIZEOFFREE, mflags;
2402	sint16	2044
2403	nx,	2045	sint16 nx, ny;
2404	ny;
2405	object *	2046	object *tmp;
2406	tmp;	2047	maptile *mp;
2407	mapstruct *
2408	mp;
2409	MoveType
2410	blocked,
2411	move_type;
2412		2048
		2049	MoveType blocked, move_type;
		2050
2413	if (exclude && exclude->head)	2051	if (exclude && exclude->head_ () != exclude)
2414	{	2052	{
2415	exclude = exclude->head;	2053	exclude = exclude->head;
2416	move_type = exclude->move_type;	2054	move_type = exclude->move_type;
2417	}	2055	}
2418	else	2056	else
…		…
2426	mp = m;	2064	mp = m;
2427	nx = x + freearr_x[i];	2065	nx = x + freearr_x[i];
2428	ny = y + freearr_y[i];	2066	ny = y + freearr_y[i];
2429		2067
2430	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2068	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2069
2431	if (mflags & P_OUT_OF_MAP)	2070	if (mflags & P_OUT_OF_MAP)
2432	{
2433	max = maxfree[i];	2071	max = maxfree[i];
2434	}
2435	else	2072	else
2436	{	2073	{
2437	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2074	mapspace &ms = mp->at (nx, ny);
		2075
		2076	blocked = ms.move_block;
2438		2077
2439	if ((move_type & blocked) == move_type)	2078	if ((move_type & blocked) == move_type)
2440	{
2441	max = maxfree[i];	2079	max = maxfree[i];
2442	}
2443	else if (mflags & P_IS_ALIVE)	2080	else if (mflags & P_IS_ALIVE)
2444	{	2081	{
2445	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2082	for (tmp = ms.bot; tmp; tmp = tmp->above)
2446	{	2083	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2447	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2084	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2448	{
2449	break;	2085	break;
2450	}	2086
2451	}
2452	if (tmp)	2087	if (tmp)
2453	{
2454	return freedir[i];	2088	return freedir[i];
2455	}
2456	}	2089	}
2457	}	2090	}
2458	}	2091	}
		2092
2459	return 0;	2093	return 0;
2460	}	2094	}
2461		2095
2462	/*	2096	/*
2463	* distance(object 1, object 2) will return the square of the	2097	* distance(object 1, object 2) will return the square of the
2464	* distance between the two given objects.	2098	* distance between the two given objects.
2465	*/	2099	*/
2466
2467	int	2100	int
2468	distance (const object *ob1, const object *ob2)	2101	distance (const object *ob1, const object *ob2)
2469	{	2102	{
2470	int
2471	i;
2472
2473	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2103	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2474	return i;
2475	}	2104	}
2476		2105
2477	/*	2106	/*
2478	* find_dir_2(delta-x,delta-y) will return a direction in which	2107	* find_dir_2(delta-x,delta-y) will return a direction in which
2479	* an object which has subtracted the x and y coordinates of another	2108	* an object which has subtracted the x and y coordinates of another
2480	* object, needs to travel toward it.	2109	* object, needs to travel toward it.
2481	*/	2110	*/
2482
2483	int	2111	int
2484	find_dir_2 (int x, int y)	2112	find_dir_2 (int x, int y)
2485	{	2113	{
2486	int	2114	int q;
2487	q;
2488		2115
2489	if (y)	2116	if (y)
2490	q = x * 100 / y;	2117	q = x * 100 / y;
2491	else if (x)	2118	else if (x)
2492	q = -300 * x;	2119	q = -300 * x;
…		…
2517		2144
2518	return 3;	2145	return 3;
2519	}	2146	}
2520		2147
2521	/*	2148	/*
2522	* absdir(int): Returns a number between 1 and 8, which represent
2523	* the "absolute" direction of a number (it actually takes care of
2524	* "overflow" in previous calculations of a direction).
2525	*/
2526
2527	int
2528	absdir (int d)
2529	{
2530	while (d < 1)
2531	d += 8;
2532	while (d > 8)
2533	d -= 8;
2534	return d;
2535	}
2536
2537	/*
2538	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2149	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2539	* between two directions (which are expected to be absolute (see absdir())	2150	* between two directions (which are expected to be absolute (see absdir())
2540	*/	2151	*/
2541
2542	int	2152	int
2543	dirdiff (int dir1, int dir2)	2153	dirdiff (int dir1, int dir2)
2544	{	2154	{
2545	int	2155	int d;
2546	d;
2547		2156
2548	d = abs (dir1 - dir2);	2157	d = abs (dir1 - dir2);
2549	if (d > 4)	2158	if (d > 4)
2550	d = 8 - d;	2159	d = 8 - d;
		2160
2551	return d;	2161	return d;
2552	}	2162	}
2553		2163
2554	/* peterm:	2164	/* peterm:
2555	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2165	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2558	* This basically means that if direction is 15, then it could either go	2168	* This basically means that if direction is 15, then it could either go
2559	* direction 4, 14, or 16 to get back to where we are.	2169	* direction 4, 14, or 16 to get back to where we are.
2560	* Moved from spell_util.c to object.c with the other related direction	2170	* Moved from spell_util.c to object.c with the other related direction
2561	* functions.	2171	* functions.
2562	*/	2172	*/
2563
2564	int
2565	reduction_dir[SIZEOFFREE][3] = {	2173	int reduction_dir[SIZEOFFREE][3] = {
2566	{0, 0, 0}, /* 0 */	2174	{0, 0, 0}, /* 0 */
2567	{0, 0, 0}, /* 1 */	2175	{0, 0, 0}, /* 1 */
2568	{0, 0, 0}, /* 2 */	2176	{0, 0, 0}, /* 2 */
2569	{0, 0, 0}, /* 3 */	2177	{0, 0, 0}, /* 3 */
2570	{0, 0, 0}, /* 4 */	2178	{0, 0, 0}, /* 4 */
…		…
2618	* find a path to that monster that we found. If not,	2226	* find a path to that monster that we found. If not,
2619	* we don't bother going toward it. Returns 1 if we	2227	* we don't bother going toward it. Returns 1 if we
2620	* can see a direct way to get it	2228	* can see a direct way to get it
2621	* Modified to be map tile aware -.MSW	2229	* Modified to be map tile aware -.MSW
2622	*/	2230	*/
2623
2624
2625	int	2231	int
2626	can_see_monsterP (mapstruct *m, int x, int y, int dir)	2232	can_see_monsterP (maptile *m, int x, int y, int dir)
2627	{	2233	{
2628	sint16	2234	sint16 dx, dy;
2629	dx,
2630	dy;
2631	int
2632	mflags;	2235	int mflags;
2633		2236
2634	if (dir < 0)	2237	if (dir < 0)
2635	return 0; /* exit condition: invalid direction */	2238	return 0; /* exit condition: invalid direction */
2636		2239
2637	dx = x + freearr_x[dir];	2240	dx = x + freearr_x[dir];
…		…
2650	return 0;	2253	return 0;
2651		2254
2652	/* yes, can see. */	2255	/* yes, can see. */
2653	if (dir < 9)	2256	if (dir < 9)
2654	return 1;	2257	return 1;
		2258
2655	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2259	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2656	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2260	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2261	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2657	}	2262	}
2658
2659
2660		2263
2661	/*	2264	/*
2662	* can_pick(picker, item): finds out if an object is possible to be	2265	* can_pick(picker, item): finds out if an object is possible to be
2663	* picked up by the picker. Returnes 1 if it can be	2266	* picked up by the picker. Returnes 1 if it can be
2664	* picked up, otherwise 0.	2267	* picked up, otherwise 0.
…		…
2666	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2269	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2667	* core dumps if they do.	2270	* core dumps if they do.
2668	*	2271	*
2669	* Add a check so we can't pick up invisible objects (0.93.8)	2272	* Add a check so we can't pick up invisible objects (0.93.8)
2670	*/	2273	*/
2671
2672	int	2274	int
2673	can_pick (const object *who, const object *item)	2275	can_pick (const object *who, const object *item)
2674	{	2276	{
2675	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2277	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2676	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2278	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2677	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2279	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2678	}	2280	}
2679		2281
2680
2681	/*	2282	/*
2682	* create clone from object to another	2283	* create clone from object to another
2683	*/	2284	*/
2684	object *	2285	object *
2685	object_create_clone (object *asrc)	2286	object::deep_clone ()
2686	{	2287	{
2687	object *	2288	assert (("deep_clone called on non-head object", is_head ()));
2688	dst = NULL, *tmp, *src, *part, *prev, *item;
2689		2289
2690	if (!asrc)	2290	object *dst = clone ();
2691	return NULL;
2692	src = asrc;
2693	if (src->head)
2694	src = src->head;
2695		2291
2696	prev = NULL;	2292	object *prev = dst;
2697	for (part = src; part; part = part->more)	2293	for (object *part = this->more; part; part = part->more)
2698	{	2294	{
2699	tmp = get_object ();	2295	object *tmp = part->clone ();
2700	copy_object (part, tmp);
2701	tmp->x -= src->x;
2702	tmp->y -= src->y;
2703	if (!part->head)
2704	{
2705	dst = tmp;
2706	tmp->head = NULL;
2707	}
2708	else
2709	{
2710	tmp->head = dst;	2296	tmp->head = dst;
2711	}
2712	tmp->more = NULL;
2713	if (prev)
2714	prev->more = tmp;	2297	prev->more = tmp;
2715	prev = tmp;	2298	prev = tmp;
2716	}	2299	}
2717		2300
2718	/*** copy inventory ***/
2719	for (item = src->inv; item; item = item->below)	2301	for (object *item = inv; item; item = item->below)
2720	{	2302	insert_ob_in_ob (item->deep_clone (), dst);
2721	(void) insert_ob_in_ob (object_create_clone (item), dst);
2722	}
2723		2303
2724	return dst;	2304	return dst;
2725	}
2726
2727	/* return true if the object was destroyed, 0 otherwise */
2728	int
2729	was_destroyed (const object *op, tag_t old_tag)
2730	{
2731	/* checking for FLAG_FREED isn't necessary, but makes this function more
2732	* robust */
2733	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2734	}
2735
2736	/* GROS - Creates an object using a string representing its content. */
2737
2738	/* Basically, we save the content of the string to a temp file, then call */
2739
2740	/* load_object on it. I admit it is a highly inefficient way to make things, */
2741
2742	/* but it was simple to make and allows reusing the load_object function. */
2743
2744	/* Remember not to use load_object_str in a time-critical situation. */
2745
2746	/* Also remember that multiparts objects are not supported for now. */
2747
2748	object *
2749	load_object_str (const char *obstr)
2750	{
2751	object *
2752	op;
2753	char
2754	filename[MAX_BUF];
2755
2756	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2757
2758	FILE *
2759	tempfile = fopen (filename, "w");
2760
2761	if (tempfile == NULL)
2762	{
2763	LOG (llevError, "Error - Unable to access load object temp file\n");
2764	return NULL;
2765	};
2766	fprintf (tempfile, obstr);
2767	fclose (tempfile);
2768
2769	op = get_object ();
2770
2771	object_thawer
2772	thawer (filename);
2773
2774	if (thawer)
2775	load_object (thawer, op, 0);
2776
2777	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2778	CLEAR_FLAG (op, FLAG_REMOVED);
2779
2780	return op;
2781	}	2305	}
2782		2306
2783	/* This returns the first object in who's inventory that	2307	/* This returns the first object in who's inventory that
2784	* has the same type and subtype match.	2308	* has the same type and subtype match.
2785	* returns NULL if no match.	2309	* returns NULL if no match.
2786	*/	2310	*/
2787	object *	2311	object *
2788	find_obj_by_type_subtype (const object *who, int type, int subtype)	2312	find_obj_by_type_subtype (const object *who, int type, int subtype)
2789	{	2313	{
2790	object *
2791	tmp;
2792
2793	for (tmp = who->inv; tmp; tmp = tmp->below)	2314	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2794	if (tmp->type == type && tmp->subtype == subtype)	2315	if (tmp->type == type && tmp->subtype == subtype)
2795	return tmp;	2316	return tmp;
2796		2317
2797	return NULL;	2318	return 0;
2798	}	2319	}
2799		2320
2800	/* If ob has a field named key, return the link from the list,	2321	const shstr &
2801	* otherwise return NULL.	2322	object::kv_get (const shstr &key) const
2802	*
2803	* key must be a passed in shared string - otherwise, this won't
2804	* do the desired thing.
2805	*/
2806	key_value *
2807	get_ob_key_link (const object *ob, const char *key)
2808	{	2323	{
2809	key_value *	2324	for (key_value *kv = key_values; kv; kv = kv->next)
2810	link;
2811
2812	for (link = ob->key_values; link != NULL; link = link->next)
2813	{
2814	if (link->key == key)	2325	if (kv->key == key)
		2326	return kv->value;
		2327
		2328	return shstr_null;
		2329	}
		2330
		2331	void
		2332	object::kv_set (const shstr &key, const shstr &value)
		2333	{
		2334	for (key_value *kv = key_values; kv; kv = kv->next)
		2335	if (kv->key == key)
		2336	{
		2337	kv->value = value;
		2338	return;
		2339	}
		2340
		2341	key_value *kv = new key_value;
		2342
		2343	kv->next = key_values;
		2344	kv->key = key;
		2345	kv->value = value;
		2346
		2347	key_values = kv;
		2348	}
		2349
		2350	void
		2351	object::kv_del (const shstr &key)
		2352	{
		2353	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2354	if ((*kvp)->key == key)
		2355	{
		2356	key_value *kv = *kvp;
		2357	*kvp = (*kvp)->next;
		2358	delete kv;
		2359	return;
		2360	}
		2361	}
		2362
		2363	object::depth_iterator::depth_iterator (object *container)
		2364	: iterator_base (container)
		2365	{
		2366	while (item->inv)
		2367	item = item->inv;
		2368	}
		2369
		2370	void
		2371	object::depth_iterator::next ()
		2372	{
		2373	if (item->below)
		2374	{
		2375	item = item->below;
		2376
		2377	while (item->inv)
		2378	item = item->inv;
		2379	}
		2380	else
		2381	item = item->env;
		2382	}
		2383
		2384	const char *
		2385	object::flag_desc (char *desc, int len) const
		2386	{
		2387	char *p = desc;
		2388	bool first = true;
		2389
		2390	*p = 0;
		2391
		2392	for (int i = 0; i < NUM_FLAGS; i++)
		2393	{
		2394	if (len <= 10) // magic constant!
2815	{	2395	{
2816	return link;	2396	snprintf (p, len, ",...");
		2397	break;
2817	}	2398	}
2818	}
2819		2399
2820	return NULL;	2400	if (flag [i])
2821	}	2401	{
		2402	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2403	len -= cnt;
		2404	p += cnt;
		2405	first = false;
		2406	}
		2407	}
2822		2408
2823	/*	2409	return desc;
2824	* Returns the value of op has an extra_field for key, or NULL.	2410	}
2825	*	2411
2826	* The argument doesn't need to be a shared string.	2412	// return a suitable string describing an object in enough detail to find it
2827	*
2828	* The returned string is shared.
2829	*/
2830	const char *	2413	const char *
2831	get_ob_key_value (const object *op, const char *const key)	2414	object::debug_desc (char *info) const
2832	{	2415	{
2833	key_value *	2416	char flagdesc[512];
2834	link;	2417	char info2[256 * 4];
		2418	char *p = info;
		2419
		2420	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s,flags:[%s],type:%d}",
		2421	count,
		2422	uuid.c_str (),
		2423	&name,
		2424	title ? "\",title:\"" : "",
		2425	title ? (const char *)title : "",
		2426	flag_desc (flagdesc, 512), type);
		2427
		2428	if (!flag[FLAG_REMOVED] && env)
		2429	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2430
		2431	if (map)
		2432	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2433
		2434	return info;
		2435	}
		2436
2835	const char *	2437	const char *
2836	canonical_key;	2438	object::debug_desc () const
		2439	{
		2440	static char info[3][256 * 4];
		2441	static int info_idx;
2837		2442
2838	canonical_key = shstr::find (key);	2443	return debug_desc (info [++info_idx % 3]);
		2444	}
2839		2445
2840	if (canonical_key == NULL)	2446	struct region *
2841	{	2447	object::region () const
2842	/* 1. There being a field named key on any object	2448	{
2843	* implies there'd be a shared string to find.	2449	return map ? map->region (x, y)
2844	* 2. Since there isn't, no object has this field.	2450	: region::default_region ();
2845	* 3. Therefore, *this* object doesn't have this field.	2451	}
2846	*/	2452
		2453	const materialtype_t *
		2454	object::dominant_material () const
		2455	{
		2456	if (materialtype_t *mt = name_to_material (materialname))
		2457	return mt;
		2458
		2459	return name_to_material (shstr_unknown);
		2460	}
		2461
		2462	void
		2463	object::open_container (object *new_container)
		2464	{
		2465	if (container == new_container)
2847	return NULL;	2466	return;
		2467
		2468	object *old_container = container;
		2469
		2470	if (old_container)
2848	}	2471	{
		2472	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2473	return;
2849		2474
2850	/* This is copied from get_ob_key_link() above -	2475	#if 0
2851	* only 4 lines, and saves the function call overhead.	2476	// remove the "Close old_container" object.
		2477	if (object *closer = old_container->inv)
		2478	if (closer->type == CLOSE_CON)
		2479	closer->destroy ();
		2480	#endif
		2481
		2482	// make sure the container is available
		2483	esrv_send_item (this, old_container);
		2484
		2485	old_container->flag [FLAG_APPLIED] = false;
		2486	container = 0;
		2487
		2488	// client needs item update to make it work, client bug requires this to be separate
		2489	esrv_update_item (UPD_FLAGS, this, old_container);
		2490
		2491	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2492	play_sound (sound_find ("chest_close"));
		2493	}
		2494
		2495	if (new_container)
		2496	{
		2497	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2498	return;
		2499
		2500	// TODO: this does not seem to serve any purpose anymore?
		2501	#if 0
		2502	// insert the "Close Container" object.
		2503	if (archetype *closer = new_container->other_arch)
		2504	{
		2505	object *closer = arch_to_object (new_container->other_arch);
		2506	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2507	new_container->insert (closer);
		2508	}
		2509	#endif
		2510
		2511	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2512
		2513	// make sure the container is available, client bug requires this to be separate
		2514	esrv_send_item (this, new_container);
		2515
		2516	new_container->flag [FLAG_APPLIED] = true;
		2517	container = new_container;
		2518
		2519	// client needs flag change
		2520	esrv_update_item (UPD_FLAGS, this, new_container);
		2521	esrv_send_inventory (this, new_container);
		2522	play_sound (sound_find ("chest_open"));
		2523	}
		2524	// else if (!old_container->env && contr && contr->ns)
		2525	// contr->ns->floorbox_reset ();
		2526	}
		2527
		2528	object *
		2529	object::force_find (const shstr name)
		2530	{
		2531	/* cycle through his inventory to look for the MARK we want to
		2532	* place
2852	*/	2533	*/
2853	for (link = op->key_values; link != NULL; link = link->next)	2534	for (object *tmp = inv; tmp; tmp = tmp->below)
2854	{	2535	if (tmp->type == FORCE && tmp->slaying == name)
2855	if (link->key == canonical_key)	2536	return splay (tmp);
2856	{	2537
2857	return link->value;
2858	}
2859	}
2860	return NULL;	2538	return 0;
2861	}	2539	}
2862		2540
2863		2541	void
2864	/*	2542	object::force_add (const shstr name, int duration)
2865	* Updates the canonical_key in op to value.
2866	*
2867	* canonical_key is a shared string (value doesn't have to be).
2868	*
2869	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2870	* keys.
2871	*
2872	* Returns TRUE on success.
2873	*/
2874	int
2875	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2876	{	2543	{
2877	key_value *	2544	if (object *force = force_find (name))
2878	field = NULL, *last = NULL;	2545	force->destroy ();
2879		2546
2880	for (field = op->key_values; field != NULL; field = field->next)	2547	object *force = get_archetype (FORCE_NAME);
2881	{
2882	if (field->key != canonical_key)
2883	{
2884	last = field;
2885	continue;
2886	}
2887		2548
2888	if (value)	2549	force->slaying = name;
2889	field->value = value;	2550	force->stats.food = 1;
2890	else	2551	force->speed_left = -1.f;
2891	{
2892	/* Basically, if the archetype has this key set,
2893	* we need to store the null value so when we save
2894	* it, we save the empty value so that when we load,
2895	* we get this value back again.
2896	*/
2897	if (get_ob_key_link (&op->arch->clone, canonical_key))
2898	field->value = 0;
2899	else
2900	{
2901	if (last)
2902	last->next = field->next;
2903	else
2904	op->key_values = field->next;
2905		2552
2906	delete	2553	force->set_speed (duration ? 1.f / duration : 0.f);
2907	field;	2554	force->flag [FLAG_IS_USED_UP] = true;
2908	}	2555	force->flag [FLAG_APPLIED] = true;
2909	}
2910	return TRUE;
2911	}
2912	/* IF we get here, key doesn't exist */
2913		2556
2914	/* No field, we'll have to add it. */	2557	insert (force);
		2558	}
2915		2559
2916	if (!add_key)	2560	void
2917	{	2561	object::play_sound (faceidx sound)
2918	return FALSE;	2562	{
2919	}	2563	if (!sound)
2920	/* There isn't any good reason to store a null
2921	* value in the key/value list. If the archetype has
2922	* this key, then we should also have it, so shouldn't
2923	* be here. If user wants to store empty strings,
2924	* should pass in ""
2925	*/
2926	if (value == NULL)
2927	return TRUE;	2564	return;
2928		2565
2929	field = new key_value;	2566	if (flag [FLAG_REMOVED])
		2567	return;
2930		2568
2931	field->key = canonical_key;	2569	if (env)
2932	field->value = value;	2570	{
2933	/* Usual prepend-addition. */	2571	if (object *pl = in_player ())
2934	field->next = op->key_values;	2572	pl->contr->play_sound (sound);
2935	op->key_values = field;	2573	}
2936		2574	else
2937	return TRUE;	2575	map->play_sound (sound, x, y);
2938	}	2576	}
2939		2577
2940	/*
2941	* Updates the key in op to value.
2942	*
2943	* If add_key is FALSE, this will only update existing keys,
2944	* and not add new ones.
2945	* In general, should be little reason FALSE is ever passed in for add_key
2946	*
2947	* Returns TRUE on success.
2948	*/
2949	int
2950	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2951	{
2952	shstr
2953	key_ (key);
2954
2955	return set_ob_key_value_s (op, key_, value, add_key);
2956	}

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