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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 1.282 by root, Tue Feb 17 03:53:31 2009 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 (©) 2005,2006,2007,2008,2009 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	uint32_t mapspace::smellcount = 10000;
		38
		39	objectvec objects;
		40	activevec actives;
		41
		42	short freearr_x[SIZEOFFREE] = {
		43	0,
		44	0, 1, 1, 1, 0, -1, -1, -1,
		45	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	46	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	};	47	};
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,	48	short freearr_y[SIZEOFFREE] = {
		49	0,
		50	-1, -1, 0, 1, 1, 1, 0, -1,
		51	-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	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
53	};	53	};
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,	54	int maxfree[SIZEOFFREE] = {
		55	0,
		56	9, 10, 13, 14, 17, 18, 21, 22,
		57	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	58	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	};	59	};
57	int freedir[SIZEOFFREE] = {	60	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,	61	0,
		62	1, 2, 3, 4, 5, 6, 7, 8,
		63	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	64	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	};	65	};
61		66
		67	static void
		68	write_uuid (uval64 skip, bool sync)
		69	{
		70	CALL_BEGIN (2);
		71	CALL_ARG_SV (newSVval64 (skip));
		72	CALL_ARG_SV (boolSV (sync));
		73	CALL_CALL ("cf::write_uuid", G_DISCARD);
		74	CALL_END;
		75	}
		76
		77	static void
		78	read_uuid (void)
		79	{
		80	char filename[MAX_BUF];
		81
		82	sprintf (filename, "%s/uuid", settings.localdir);
		83
		84	seq_next_save = 0;
		85
		86	FILE *fp;
		87
		88	if (!(fp = fopen (filename, "r")))
		89	{
		90	if (errno == ENOENT)
		91	{
		92	LOG (llevInfo, "RESET uid to 1\n");
		93	UUID::cur.seq = 0;
		94	write_uuid (UUID_GAP, true);
		95	return;
		96	}
		97
		98	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		99	_exit (1);
		100	}
		101
		102	UUID::BUF buf;
		103	buf[0] = 0;
		104	fgets (buf, sizeof (buf), fp);
		105
		106	if (!UUID::cur.parse (buf))
		107	{
		108	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
		109	_exit (1);
		110	}
		111
		112	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
		113
		114	write_uuid (UUID_GAP, true);
		115	fclose (fp);
		116	}
		117
		118	UUID
		119	UUID::gen ()
		120	{
		121	UUID uid;
		122
		123	uid.seq = ++cur.seq;
		124
		125	if (expect_false (cur.seq >= seq_next_save))
		126	{
		127	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		128	write_uuid (UUID_GAP, false);
		129	}
		130
		131
		132	return uid;
		133	}
		134
		135	void
		136	UUID::init ()
		137	{
		138	read_uuid ();
		139	}
		140
62	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	141	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
63	static int	142	static bool
64	compare_ob_value_lists_one (const object *wants, const object *has)	143	compare_ob_value_lists_one (const object *wants, const object *has)
65	{	144	{
66	key_value *wants_field;
67
68	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	145	/* 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	146	* objects with lists are rare, and lists stay short. If not, use a
70	* different structure or at least keep the lists sorted...	147	* different structure or at least keep the lists sorted...
71	*/	148	*/
72		149
73	/* For each field in wants, */	150	/* For each field in wants, */
74	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	151	for (key_value *kv = wants->key_values; kv; kv = kv->next)
75	{	152	if (has->kv_get (kv->key) != kv->value)
76	key_value *has_field;	153	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		154
97	/* If we get here, every field in wants has a matching field in has. */	155	/* If we get here, every field in wants has a matching field in has. */
98	return TRUE;	156	return true;
99	}	157	}
100		158
101	/* Returns TRUE if ob1 has the same key_values as ob2. */	159	/* Returns TRUE if ob1 has the same key_values as ob2. */
102	static int	160	static bool
103	compare_ob_value_lists (const object *ob1, const object *ob2)	161	compare_ob_value_lists (const object *ob1, const object *ob2)
104	{	162	{
105	/* However, there may be fields in has which aren't partnered in wants,	163	/* However, there may be fields in has which aren't partnered in wants,
106	* so we need to run the comparison *twice*. :(	164	* so we need to run the comparison *twice*. :(
107	*/	165	*/
108	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);	166	return compare_ob_value_lists_one (ob1, ob2)
		167	&& compare_ob_value_lists_one (ob2, ob1);
109	}	168	}
110		169
111	/* Function examines the 2 objects given to it, and returns true if	170	/* Function examines the 2 objects given to it, and returns true if
112	* they can be merged together.	171	* they can be merged together.
113	*	172	*
114	* Note that this function appears a lot longer than the macro it	173	* Note that this function appears a lot longer than the macro it
115	* replaces - this is mostly for clarity - a decent compiler should hopefully	174	* replaces - this is mostly for clarity - a decent compiler should hopefully
116	* reduce this to the same efficiency.	175	* reduce this to the same efficiency.
117	*	176	*
118	* Check nrof variable *before* calling CAN_MERGE()	177	* Check nrof variable *before* calling can_merge()
119	*	178	*
120	* Improvements made with merge: Better checking on potion, and also	179	* Improvements made with merge: Better checking on potion, and also
121	* check weight	180	* check weight
122	*/	181	*/
123
124	bool object::can_merge (object *ob1, object *ob2)	182	bool object::can_merge_slow (object *ob1, object *ob2)
125	{	183	{
126	/* A couple quicksanity checks */	184	/* A couple quicksanity checks */
127	if ((ob1 == ob2) || (ob1->type != ob2->type))	185	if (ob1 == ob2
		186	|| ob1->type != ob2->type
		187	|| ob1->speed != ob2->speed
		188	|| ob1->value != ob2->value
		189	|| ob1->name != ob2->name)
128	return 0;	190	return 0;
129		191
130	if (ob1->speed != ob2->speed)	192	/* Do not merge objects if nrof would overflow, assume nrof
		193	* is always 0 .. 2**31-1 */
		194	if (ob1->nrof > 0x7fffffff - ob2->nrof)
131	return 0;	195	return 0;
132		196
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.	197	/* 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	198	* 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	199	* 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	200	* are not equal - just if it has been identified, the been_applied
144	* flags lose any meaning.	201	* flags lose any meaning.
145	*/	202	*/
146	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	203	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
147	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	204	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
148		205
149	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	206	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
150	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	207	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
151		208
152		209	if (ob1->arch->archname != ob2->arch->archname
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) ||	210	|| ob1->name != ob2->name
163	(ob1->title != ob2->title) ||	211	|| ob1->title != ob2->title
164	(ob1->msg != ob2->msg) ||	212	|| ob1->msg != ob2->msg
165	(ob1->weight != ob2->weight) ||	213	|| 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) ||	214	|| ob1->attacktype != ob2->attacktype
169	(ob1->magic != ob2->magic) ||	215	|| ob1->magic != ob2->magic
170	(ob1->slaying != ob2->slaying) ||	216	|| ob1->slaying != ob2->slaying
171	(ob1->skill != ob2->skill) ||	217	|| ob1->skill != ob2->skill
172	(ob1->value != ob2->value) ||	218	|| ob1->value != ob2->value
173	(ob1->animation_id != ob2->animation_id) ||	219	|| ob1->animation_id != ob2->animation_id
		220	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependent on each other
174	(ob1->client_type != ob2->client_type) ||	221	|| ob1->client_type != ob2->client_type
175	(ob1->materialname != ob2->materialname) ||	222	|| ob1->materialname != ob2->materialname
176	(ob1->lore != ob2->lore) ||	223	|| ob1->lore != ob2->lore
177	(ob1->subtype != ob2->subtype) ||	224	|| ob1->subtype != ob2->subtype
178	(ob1->move_type != ob2->move_type) ||	225	|| ob1->move_type != ob2->move_type
179	(ob1->move_block != ob2->move_block) ||	226	|| ob1->move_block != ob2->move_block
180	(ob1->move_allow != ob2->move_allow) ||	227	|| ob1->move_allow != ob2->move_allow
181	(ob1->move_on != ob2->move_on) ||	228	|| 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))	229	|| ob1->move_off != ob2->move_off
		230	|| ob1->move_slow != ob2->move_slow
		231	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
183	return 0;	234	return 0;
184		235
		236	if ((ob1->flag ^ ob2->flag)
		237	.reset (FLAG_INV_LOCKED)
		238	.reset (FLAG_REMOVED)
		239	.any ())
		240	return 0;
		241
185	/* This is really a spellbook check - really, we should	242	/* This is really a spellbook check - we should in general
186	* check all objects in the inventory.	243	* not merge objects with real inventories, as splitting them
		244	* is hard.
187	*/	245	*/
188	if (ob1->inv || ob2->inv)	246	if (ob1->inv || ob2->inv)
189	{	247	{
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))	248	if (!(ob1->inv && ob2->inv))
196	return 0;	249	return 0; /* inventories differ in length */
		250
		251	if (ob1->inv->below || ob2->inv->below)
		252	return 0; /* more than one object in inv */
		253
		254	if (!object::can_merge (ob1->inv, ob2->inv))
		255	return 0; /* inventory objects differ */
197		256
198	/* inventory ok - still need to check rest of this object to see	257	/* inventory ok - still need to check rest of this object to see
199	* if it is valid.	258	* if it is valid.
200	*/	259	*/
201	}	260	}
…		…
209		268
210	/* Note sure why the following is the case - either the object has to	269	/* 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	270	* be animated or have a very low speed. Is this an attempted monster
212	* check?	271	* check?
213	*/	272	*/
214	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	273	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
215	return 0;	274	return 0;
216		275
217	switch (ob1->type)	276	switch (ob1->type)
218	{	277	{
219	case SCROLL:	278	case SCROLL:
220	if (ob1->level != ob2->level)	279	if (ob1->level != ob2->level)
221	return 0;	280	return 0;
222	break;	281	break;
223	}	282	}
224		283
225	if (ob1->key_values != NULL || ob2->key_values != NULL)	284	if (ob1->key_values || ob2->key_values)
226	{	285	{
227	/* At least one of these has key_values. */	286	/* At least one of these has key_values. */
228	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	287	if ((!ob1->key_values) != (!ob2->key_values))
229	/* One has fields, but the other one doesn't. */	288	return 0; /* One has fields, but the other one doesn't. */
		289
		290	if (!compare_ob_value_lists (ob1, ob2))
230	return 0;	291	return 0;
231	else if (!compare_ob_value_lists (ob1, ob2))
232	return 0;
233	}	292	}
234		293
235	//TODO: generate an event or call into perl for additional checks
236	if (ob1->self || ob2->self)	294	if (ob1->self || ob2->self)
237	{	295	{
238	ob1->optimise ();	296	ob1->optimise ();
239	ob2->optimise ();	297	ob2->optimise ();
240		298
241	if (ob1->self || ob2->self)	299	if (ob1->self || ob2->self)
		300	{
		301	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		302	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		303
		304	if (k1 != k2)
242	return 0;	305	return 0;
		306
		307	if (k1 == 0)
		308	return 1;
		309
		310	if (!cfperl_can_merge (ob1, ob2))
		311	return 0;
		312	}
243	}	313	}
244		314
245	/* Everything passes, must be OK. */	315	/* Everything passes, must be OK. */
246	return 1;	316	return 1;
247	}	317	}
248		318
		319	// find player who can see this object
		320	object *
		321	object::visible_to () const
		322	{
		323	if (client_visible () && !flag [FLAG_REMOVED])
		324	{
		325	// see if we are in a container of sorts
		326	if (env)
		327	{
		328	// the player inventory itself is always visible
		329	if (env->is_player ())
		330	return env;
		331
		332	// else a player could have our env open
		333	object *envest = env->outer_env ();
		334
		335	// the player itself is always on a map, so we will find him here
		336	// even if our inv is in a player.
		337	if (envest->is_on_map ())
		338	if (object *pl = envest->ms ().player ())
		339	if (pl->container == env)
		340	return pl;
		341	}
		342	else
		343	{
		344	// maybe there is a player standing on the same mapspace
		345	// this will catch the case where "this" is a player
		346	if (object *pl = ms ().player ())
		347	if ((!pl->container && pl->contr->ns && !pl->contr->ns->update_look)
		348	|| this == pl->container)
		349	return pl;
		350	}
		351	}
		352
		353	return 0;
		354	}
		355
		356	// adjust weight per container type ("of holding")
		357	static sint32
		358	weight_adjust_for (object *op, sint32 weight)
		359	{
		360	return op->type == CONTAINER
		361	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		362	: weight;
		363	}
		364
249	/*	365	/*
		366	* adjust_weight(object, weight) adds the specified weight to an object,
		367	* and also updates how much the environment(s) is/are carrying.
		368	*/
		369	static void
		370	adjust_weight (object *op, sint32 weight)
		371	{
		372	while (op)
		373	{
		374	// adjust by actual difference to account for rounding errors
		375	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		376	weight = weight_adjust_for (op, op->carrying)
		377	- weight_adjust_for (op, op->carrying - weight);
		378
		379	if (!weight)
		380	return;
		381
		382	op->carrying += weight;
		383
		384	if (object *pl = op->visible_to ())
		385	if (pl != op) // player is handled lazily
		386	esrv_update_item (UPD_WEIGHT, pl, op);
		387
		388	op = op->env;
		389	}
		390	}
		391
		392	/*
250	* sum_weight() is a recursive function which calculates the weight	393	* this is a recursive function which calculates the weight
251	* an object is carrying. It goes through in figures out how much	394	* an object is carrying. It goes through op and figures out how much
252	* containers are carrying, and sums it up.	395	* containers are carrying, and sums it up.
253	*/	396	*/
254	signed long	397	void
255	sum_weight (object *op)	398	object::update_weight ()
256	{	399	{
257	signed long sum;	400	sint32 sum = 0;
258	object *inv;
259		401
260	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	402	for (object *op = inv; op; op = op->below)
261	{	403	{
262	if (inv->inv)	404	if (op->inv)
263	sum_weight (inv);	405	op->update_weight ();
264	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	406
		407	sum += op->total_weight ();
		408	}
		409
		410	sum = weight_adjust_for (this, sum);
		411
		412	if (sum != carrying)
265	}	413	{
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;	414	carrying = sum;
270	return sum;
271	}
272		415
273	/**	416	if (object *pl = visible_to ())
274	* Return the outermost environment object for a given object.	417	if (pl != this) // player is handled lazily
275	*/	418	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	{	419	}
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	}	420	}
355		421
356	/*	422	/*
357	* Dumps an object. Returns output in the static global errmsg array.	423	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
358	*/	424	*/
359		425	char *
360	void
361	dump_object (object *op)	426	dump_object (object *op)
362	{	427	{
363	if (op == NULL)	428	if (!op)
364	{	429	return strdup ("[NULLOBJ]");
365	strcpy (errmsg, "[NULL pointer]");
366	return;
367	}
368	errmsg[0] = '\0';
369	dump_object2 (op);
370	}
371		430
372	void	431	object_freezer freezer;
373	dump_all_objects (void)	432	op->write (freezer);
374	{	433	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	}	434	}
383		435
384	/*	436	/*
385	* get_nearest_part(multi-object, object 2) returns the part of the	437	* get_nearest_part(multi-object, object 2) returns the part of the
386	* multi-object 1 which is closest to the second object.	438	* multi-object 1 which is closest to the second object.
387	* If it's not a multi-object, it is returned.	439	* If it's not a multi-object, it is returned.
388	*/	440	*/
389
390	object *	441	object *
391	get_nearest_part (object *op, const object *pl)	442	get_nearest_part (object *op, const object *pl)
392	{	443	{
393	object *tmp, *closest;	444	object *tmp, *closest;
394	int last_dist, i;	445	int last_dist, i;
395		446
396	if (op->more == NULL)	447	if (!op->more)
397	return op;	448	return op;
		449
398	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	450	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		451	tmp;
		452	tmp = tmp->more)
399	if ((i = distance (tmp, pl)) < last_dist)	453	if ((i = distance (tmp, pl)) < last_dist)
400	closest = tmp, last_dist = i;	454	closest = tmp, last_dist = i;
		455
401	return closest;	456	return closest;
402	}	457	}
403		458
404	/*	459	/*
405	* Returns the object which has the count-variable equal to the argument.	460	* Returns the object which has the count-variable equal to the argument.
		461	* VERRRY slow.
406	*/	462	*/
407
408	object *	463	object *
409	find_object (tag_t i)	464	find_object (tag_t i)
410	{	465	{
411	object *op;	466	for_all_objects (op)
412
413	for (op = objects; op != NULL; op = op->next)
414	if (op->count == i)	467	if (op->count == i)
415	break;
416	return op;	468	return op;
		469
		470	return 0;
417	}	471	}
418		472
419	/*	473	/*
420	* Returns the first object which has a name equal to the argument.	474	* Returns the first object which has a name equal to the argument.
421	* Used only by the patch command, but not all that useful.	475	* Used only by the patch command, but not all that useful.
422	* Enables features like "patch <name-of-other-player> food 999"	476	* Enables features like "patch <name-of-other-player> food 999"
423	*/	477	*/
424
425	object *	478	object *
426	find_object_name (const char *str)	479	find_object_name (const char *str)
427	{	480	{
428	const char *name = shstr::find (str);	481	shstr_cmp str_ (str);
429	object *op;
430		482
431	for (op = objects; op != NULL; op = op->next)	483	if (str_)
		484	for_all_objects (op)
432	if (&op->name == name)	485	if (op->name == str_)
433	break;	486	return op;
434		487
435	return op;	488	return 0;
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	}	489	}
481		490
482	/*	491	/*
483	* Sets the owner and sets the skill and exp pointers to owner's current	492	* Sets the owner and sets the skill and exp pointers to owner's current
484	* skill and experience objects.	493	* skill and experience objects.
485	*/	494	* 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	*/	495	*/
499	while (owner->owner && owner != owner->owner && owner->ownercount == owner->owner->count)	496	void
		497	object::set_owner (object *owner)
		498	{
		499	// allow objects which own objects
		500	if (owner)
		501	while (owner->owner)
500	owner = owner->owner;	502	owner = owner->owner;
501		503
502	/* IF the owner still has an owner, we did not resolve to a final owner.	504	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	{	505	{
531	/* players don't have owners - they own themselves. Update	506	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;	507	return;
		508	}
		509
		510	this->owner = owner;
		511	}
		512
		513	int
		514	object::slottype () const
		515	{
		516	if (type == SKILL)
538	}	517	{
		518	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		519	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		520	}
		521	else
		522	{
		523	if (slot [body_combat].info) return slot_combat;
		524	if (slot [body_range ].info) return slot_ranged;
		525	}
		526
		527	return slot_none;
		528	}
539		529
540	set_owner (op, owner);	530	bool
		531	object::change_weapon (object *ob)
		532	{
		533	if (current_weapon == ob)
		534	return true;
		535
		536	if (chosen_skill)
		537	chosen_skill->flag [FLAG_APPLIED] = false;
		538
		539	current_weapon = ob;
		540	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		541
		542	if (chosen_skill)
		543	chosen_skill->flag [FLAG_APPLIED] = true;
		544
		545	update_stats ();
		546
		547	if (ob)
		548	{
		549	// now check wether any body locations became invalid, in which case
		550	// we cannot apply the weapon at the moment.
		551	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		552	if (slot[i].used < 0)
		553	{
		554	current_weapon = chosen_skill = 0;
		555	update_stats ();
		556
		557	new_draw_info_format (NDI_UNIQUE, 0, this,
		558	"You try to balance all your items at once, "
		559	"but the %s is just too much for your body. "
		560	"[You need to unapply some items first.]", &ob->name);
		561	return false;
		562	}
		563
		564	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		565	}
		566	else
		567	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		568
		569	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		570	{
		571	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		572	&name, ob->debug_desc ());
		573	return false;
		574	}
		575
		576	return true;
541	}	577	}
542		578
543	/* Zero the key_values on op, decrementing the shared-string	579	/* Zero the key_values on op, decrementing the shared-string
544	* refcounts and freeing the links.	580	* refcounts and freeing the links.
545	*/	581	*/
546	static void	582	static void
547	free_key_values (object *op)	583	free_key_values (object *op)
548	{	584	{
549	for (key_value *i = op->key_values; i != 0;)	585	for (key_value *i = op->key_values; i; )
550	{	586	{
551	key_value *next = i->next;	587	key_value *next = i->next;
552	delete i;	588	delete i;
553		589
554	i = next;	590	i = next;
555	}	591	}
556		592
557	op->key_values = 0;	593	op->key_values = 0;
558	}	594	}
559		595
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	/*	596	/*
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,	597	* copy_to first frees everything allocated by the dst object,
627	* and then copies the contends of the first object into the second	598	* and then copies the contents of itself into the second
628	* object, allocating what needs to be allocated. Basically, any	599	* object, allocating what needs to be allocated. Basically, any
629	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	600	* 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	601	* if the first object is freed, the pointers in the new object
631	* will point at garbage.	602	* will point at garbage.
632	*/	603	*/
633
634	void	604	void
635	copy_object (object *op2, object *op)	605	object::copy_to (object *dst)
636	{	606	{
637	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	607	dst->remove ();
638	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	608	*(object_copy *)dst = *this;
639		609	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		610
650	/* Copy over key_values, if any. */	611	/* Copy over key_values, if any. */
651	if (op2->key_values)	612	if (key_values)
652	{	613	{
653	key_value *tail = 0;	614	key_value *tail = 0;
654	key_value *i;
655
656	op->key_values = 0;	615	dst->key_values = 0;
657		616
658	for (i = op2->key_values; i; i = i->next)	617	for (key_value *i = key_values; i; i = i->next)
659	{	618	{
660	key_value *new_link = new key_value;	619	key_value *new_link = new key_value;
661		620
662	new_link->next = 0;	621	new_link->next = 0;
663	new_link->key = i->key;	622	new_link->key = i->key;
664	new_link->value = i->value;	623	new_link->value = i->value;
665		624
666	/* Try and be clever here, too. */	625	/* Try and be clever here, too. */
667	if (!op->key_values)	626	if (!dst->key_values)
668	{	627	{
669	op->key_values = new_link;	628	dst->key_values = new_link;
670	tail = new_link;	629	tail = new_link;
671	}	630	}
672	else	631	else
673	{	632	{
674	tail->next = new_link;	633	tail->next = new_link;
675	tail = new_link;	634	tail = new_link;
676	}	635	}
677	}	636	}
678	}	637	}
679		638
680	update_ob_speed (op);	639	if (speed < 0)
		640	dst->speed_left -= rndm ();
		641
		642	dst->activate ();
		643	}
		644
		645	void
		646	object::instantiate ()
		647	{
		648	if (!uuid.seq) // HACK
		649	uuid = UUID::gen ();
		650
		651	speed_left = -0.1f;
		652	/* copy the body_info to the body_used - this is only really
		653	* need for monsters, but doesn't hurt to do it for everything.
		654	* by doing so, when a monster is created, it has good starting
		655	* values for the body_used info, so when items are created
		656	* for it, they can be properly equipped.
		657	*/
		658	for (int i = NUM_BODY_LOCATIONS; i--; )
		659	slot[i].used = slot[i].info;
		660
		661	attachable::instantiate ();
		662	}
		663
		664	object *
		665	object::clone ()
		666	{
		667	object *neu = create ();
		668	copy_to (neu);
		669	neu->map = map; // not copied by copy_to
		670	return neu;
681	}	671	}
682		672
683	/*	673	/*
684	* If an object with the IS_TURNABLE() flag needs to be turned due	674	* 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	675	* 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.	676	* be called to update the face variable, _and_ how it looks on the map.
687	*/	677	*/
688
689	void	678	void
690	update_turn_face (object *op)	679	update_turn_face (object *op)
691	{	680	{
692	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	681	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
693	return;	682	return;
		683
694	SET_ANIMATION (op, op->direction);	684	SET_ANIMATION (op, op->direction);
695	update_object (op, UP_OBJ_FACE);	685	update_object (op, UP_OBJ_FACE);
696	}	686	}
697		687
698	/*	688	/*
699	* Updates the speed of an object. If the speed changes from 0 to another	689	* 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.	690	* 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.	691	* This function needs to be called whenever the speed of an object changes.
702	*/	692	*/
703
704	void	693	void
705	update_ob_speed (object *op)	694	object::set_speed (float speed)
706	{	695	{
707	extern int arch_init;	696	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	{	697	{
715	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	698	LOG (llevError, "Object %s is freed but has speed.\n", &name);
716	#ifdef MANY_CORES
717	abort ();
718	#else
719	op->speed = 0;	699	speed = 0;
720	#endif
721	}
722	if (arch_init)
723	{	700	}
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		701
732	/* process_events() expects us to insert the object at the beginning	702	this->speed = speed;
733	* of the list. */	703
734	op->active_next = active_objects;	704	if (has_active_speed ())
735	if (op->active_next != NULL)	705	activate ();
736	op->active_next->active_prev = op;
737	active_objects = op;
738	}
739	else	706	else
740	{	707	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	}	708	}
761		709
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	/*	710	/*
794	* update_object() updates the array which represents the map.	711	* update_object() updates the the map.
795	* It takes into account invisible objects (and represent squares covered	712	* It takes into account invisible objects (and represent squares covered
796	* by invisible objects by whatever is below them (unless it's another	713	* by invisible objects by whatever is below them (unless it's another
797	* invisible object, etc...)	714	* invisible object, etc...)
798	* If the object being updated is beneath a player, the look-window	715	* 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	716	* of that player is updated (this might be a suboptimal way of
800	* updating that window, though, since update_object() is called _often_)	717	* updating that window, though, since update_object() is called _often_)
801	*	718	*
802	* action is a hint of what the caller believes need to be done.	719	* 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:	720	* current action are:
808	* UP_OBJ_INSERT: op was inserted	721	* UP_OBJ_INSERT: op was inserted
809	* UP_OBJ_REMOVE: op was removed	722	* UP_OBJ_REMOVE: op was removed
810	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	723	* 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.	724	* as that is easier than trying to look at what may have changed.
812	* UP_OBJ_FACE: only the objects face has changed.	725	* UP_OBJ_FACE: only the objects face has changed.
813	*/	726	*/
814
815	void	727	void
816	update_object (object *op, int action)	728	update_object (object *op, int action)
817	{	729	{
818	int update_now = 0, flags;	730	if (!op)
819	MoveType move_on, move_off, move_block, move_slow;
820
821	if (op == NULL)
822	{	731	{
823	/* this should never happen */	732	/* this should never happen */
824	LOG (llevDebug, "update_object() called for NULL object.\n");	733	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
825	return;	734	return;
826	}	735	}
827		736
828	if (op->env != NULL)	737	if (!op->is_on_map ())
829	{	738	{
830	/* Animation is currently handled by client, so nothing	739	/* Animation is currently handled by client, so nothing
831	* to do in this case.	740	* to do in this case.
832	*/	741	*/
833	return;	742	return;
834	}	743	}
835		744
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 */	745	/* 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))	746	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
844	{	747	{
845	LOG (llevError, "update_object() called for object out of map!\n");	748	LOG (llevError, "update_object() called for object out of map!\n");
846	#ifdef MANY_CORES	749	#ifdef MANY_CORES
847	abort ();	750	abort ();
848	#endif	751	#endif
849	return;	752	return;
850	}	753	}
851		754
852	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	755	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		756
		757	if (!(m.flags_ & P_UPTODATE))
		758	/* nop */;
859	if (action == UP_OBJ_INSERT)	759	else if (action == UP_OBJ_INSERT)
860	{	760	{
		761	// this is likely overkill, TODO: revisit (schmorp)
861	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	762	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))	763	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
865	update_now = 1;	764	|| (op->is_player () && !(m.flags_ & P_PLAYER))
866		765	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		766	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
867	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	767	|| (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)	768	|| (m.move_on | op->move_on ) != m.move_on
877	update_now = 1;
878
879	if ((move_off | op->move_off) != move_off)	769	|| (m.move_off | op->move_off ) != m.move_off
880	update_now = 1;	770	|| (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	771	/* This isn't perfect, but I don't expect a lot of objects to
883	* to have move_allow right now.	772	* have move_allow right now.
884	*/	773	*/
885	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	774	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
886	update_now = 1;	775	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
887		776	m.invalidate ();
888	if ((move_slow | op->move_slow) != move_slow)
889	update_now = 1;
890	}	777	}
891	/* if the object is being removed, we can't make intelligent	778	/* if the object is being removed, we can't make intelligent
892	* decisions, because remove_ob can't really pass the object	779	* decisions, because remove_ob can't really pass the object
893	* that is being removed.	780	* that is being removed.
894	*/	781	*/
895	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	782	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
896	{	783	m.invalidate ();
897	update_now = 1;
898	}
899	else if (action == UP_OBJ_FACE)	784	else if (action == UP_OBJ_FACE)
900	{
901	/* Nothing to do for that case */	785	/* Nothing to do for that case */ ;
902	}
903	else	786	else
904	{
905	LOG (llevError, "update_object called with invalid action: %d\n", action);	787	LOG (llevError, "update_object called with invalid action: %d\n", action);
906	}
907		788
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)	789	if (op->more)
915	update_object (op->more, action);	790	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	}	791	}
932		792
933	object::object ()	793	object::object ()
934	{	794	{
935	SET_FLAG (this, FLAG_REMOVED);	795	SET_FLAG (this, FLAG_REMOVED);
936		796
937	expmul = 1.0;	797	expmul = 1.0;
938	face = blank_face;	798	face = blank_face;
939	attacked_by_count = -1;
940	}	799	}
941		800
942	object::~object ()	801	object::~object ()
943	{	802	{
		803	unlink ();
		804
944	free_key_values (this);	805	free_key_values (this);
945	}	806	}
946		807
		808	static int object_count;
		809
947	void object::link ()	810	void object::link ()
948	{	811	{
		812	assert (!index);//D
		813	uuid = UUID::gen ();
949	count = ++ob_count;	814	count = ++object_count;
950		815
951	prev = 0;	816	refcnt_inc ();
952	next = objects;	817	objects.insert (this);
953
954	if (objects)
955	objects->prev = this;
956
957	objects = this;
958	}	818	}
959		819
960	void object::unlink ()	820	void object::unlink ()
961	{	821	{
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)	822	if (!index)
972	{	823	return;
973	next->prev = prev;	824
974	next = 0;	825	objects.erase (this);
		826	refcnt_dec ();
		827	}
		828
		829	void
		830	object::activate ()
		831	{
		832	/* If already on active list, don't do anything */
		833	if (active)
		834	return;
		835
		836	if (has_active_speed () && flag [FLAG_FREED]) LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
		837	if (has_active_speed () && flag [FLAG_DEBUG]) LOG (llevError | logBacktrace, "BUG: tried to activate DEBUG object %s\n", debug_desc ());//D temp
		838
		839	if (has_active_speed ())
		840	actives.insert (this);
		841	}
		842
		843	void
		844	object::activate_recursive ()
		845	{
		846	activate ();
		847
		848	for (object *op = inv; op; op = op->below)
		849	op->activate_recursive ();
		850	}
		851
		852	/* This function removes object 'op' from the list of active
		853	* objects.
		854	* This should only be used for style maps or other such
		855	* reference maps where you don't want an object that isn't
		856	* in play chewing up cpu time getting processed.
		857	* The reverse of this is to call update_ob_speed, which
		858	* will do the right thing based on the speed of the object.
		859	*/
		860	void
		861	object::deactivate ()
		862	{
		863	/* If not on the active list, nothing needs to be done */
		864	if (!active)
		865	return;
		866
		867	actives.erase (this);
		868	}
		869
		870	void
		871	object::deactivate_recursive ()
		872	{
		873	for (object *op = inv; op; op = op->below)
		874	op->deactivate_recursive ();
		875
		876	deactivate ();
		877	}
		878
		879	void
		880	object::set_flag_inv (int flag, int value)
		881	{
		882	for (object *op = inv; op; op = op->below)
975	}	883	{
		884	op->flag [flag] = value;
		885	op->set_flag_inv (flag, value);
		886	}
		887	}
976		888
977	if (this == objects)	889	/*
978	objects = next;	890	* Remove and free all objects in the inventory of the given object.
		891	* object.c ?
		892	*/
		893	void
		894	object::destroy_inv (bool drop_to_ground)
		895	{
		896	// need to check first, because the checks below might segfault
		897	// as we might be on an invalid mapspace and crossfire code
		898	// is too buggy to ensure that the inventory is empty.
		899	// corollary: if you create arrows etc. with stuff in its inventory,
		900	// cf will crash below with off-map x and y
		901	if (!inv)
		902	return;
		903
		904	/* Only if the space blocks everything do we not process -
		905	* if some form of movement is allowed, let objects
		906	* drop on that space.
		907	*/
		908	if (!drop_to_ground
		909	|| !map
		910	|| map->in_memory != MAP_ACTIVE
		911	|| map->no_drop
		912	|| ms ().move_block == MOVE_ALL)
		913	{
		914	while (inv)
		915	inv->destroy ();
		916	}
		917	else
		918	{ /* Put objects in inventory onto this space */
		919	while (inv)
		920	{
		921	object *op = inv;
		922
		923	if (op->flag [FLAG_STARTEQUIP]
		924	|| op->flag [FLAG_NO_DROP]
		925	|| op->type == RUNE
		926	|| op->type == TRAP
		927	|| op->flag [FLAG_IS_A_TEMPLATE]
		928	|| op->flag [FLAG_DESTROY_ON_DEATH])
		929	op->destroy ();
		930	else
		931	map->insert (op, x, y);
		932	}
		933	}
979	}	934	}
980		935
981	object *object::create ()	936	object *object::create ()
982	{	937	{
983	object *op;
984
985	if (freed.empty ())
986	op = new object;	938	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 ();	939	op->link ();
996	return op;	940	return op;
997	}	941	}
998		942
999	/*	943	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	{	944	{
1011	if (!QUERY_FLAG (this, FLAG_REMOVED))	945	freed_map ()
1012	{	946	{
1013	LOG (llevDebug, "Free object called with non removed object\n");	947	path = "<freed objects map>";
1014	dump_object (this);	948	name = "/internal/freed_objects_map";
1015	#ifdef MANY_CORES	949	width = 3;
1016	abort ();	950	height = 3;
1017	#endif	951	no_drop = 1;
		952	no_reset = 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_link ();
		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 ()
		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 ();
1030	return;	1012	return;
1031	}	1013	}
1032		1014
1033	if (more)	1015	destroy_inv (false);
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	object *pl = in_player ();
		1063
		1064	/* we set up values so that it could be inserted into
		1065	* the map, but we don't actually do that - it is up
		1066	* to the caller to decide what we want to do.
		1067	*/
		1068	map = env->map;
		1069	x = env->x;
		1070	y = env->y;
		1071
		1072	// make sure cmov optimisation is applicable
		1073	*(above ? &above->below : &env->inv) = below;
		1074	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1075
		1076	above = 0;
		1077	below = 0;
		1078	env = 0;
1179		1079
1180	/* NO_FIX_PLAYER is set when a great many changes are being	1080	/* NO_FIX_PLAYER is set when a great many changes are being
1181	* made to players inventory. If set, avoiding the call	1081	* made to players inventory. If set, avoiding the call
1182	* to save cpu time.	1082	* to save cpu time.
1183	*/	1083	*/
1184	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1084	if (pl)
1185	fix_player (otmp);	1085	if (pl->is_player () && (glow_radius || !QUERY_FLAG (pl, FLAG_NO_FIX_PLAYER)))
		1086	{
		1087	pl->update_stats ();
1186		1088
1187	if (op->above != NULL)	1089	if (glow_radius && pl->is_on_map ())
1188	op->above->below = op->below;	1090	update_all_los (pl->map, pl->x, pl->y);
1189	else	1091	}
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	{	1092	}
1216	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1093	else if (map)
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	}	1094	{
1224	if (op->map != m)	1095	map->dirty = true;
1225	{	1096	mapspace &ms = this->ms ();
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		1097
1230	/* Re did the following section of code - it looks like it had	1098	if (object *pl = ms.player ())
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	{	1099	{
1253	dump_object (op);	1100	if (is_player ())
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",	1101	{
1255	errmsg);	1102	if (!flag [FLAG_WIZPASS])
1256	dump_object (GET_MAP_OB (m, x, y));	1103	ms.smell = ++mapspace::smellcount; // remember the smell of the player
1257	LOG (llevError, "%s\n", errmsg);	1104
		1105	// leaving a spot always closes any open container on the ground
		1106	if (container && !container->env)
		1107	// this causes spurious floorbox updates, but it ensures
		1108	// that the CLOSE event is being sent.
		1109	close_container ();
		1110
		1111	--map->players;
		1112	map->touch ();
		1113	}
		1114	else if (pl->container == this)
		1115	{
		1116	// removing a container should close it
		1117	close_container ();
		1118	}
		1119
		1120	esrv_del_item (pl->contr, count);
1258	}	1121	}
1259	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */
1260	}
1261	op->above = NULL;
1262	op->below = NULL;
1263		1122
		1123	/* link the object above us */
		1124	// re-link, make sure compiler can easily use cmove
		1125	*(above ? &above->below : &ms.top) = below;
		1126	*(below ? &below->above : &ms.bot) = above;
		1127
		1128	above = 0;
		1129	below = 0;
		1130
		1131	ms.invalidate ();
		1132
1264	if (op->map->in_memory == MAP_SAVING)	1133	if (map->in_memory == MAP_SAVING)
1265	return;	1134	return;
1266		1135
1267	tag = op->count;	1136	int check_walk_off = !flag [FLAG_NO_APPLY];
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		1137
1275	if (tmp->type == PLAYER && tmp != op)	1138	if (object *pl = ms.player ())
1276	{	1139	{
		1140	if (pl->container == this)
1277	/* If a container that the player is currently using somehow gets	1141	/* If a container that the player is currently using somehow gets
1278	* removed (most likely destroyed), update the player view	1142	* removed (most likely destroyed), update the player view
1279	* appropriately.	1143	* appropriately.
		1144	*/
		1145	pl->close_container ();
		1146
		1147	//TODO: the floorbox prev/next might need updating
		1148	//esrv_del_item (pl->contr, count);
		1149	//TODO: update floorbox to preserve ordering
		1150	if (pl->contr->ns)
		1151	pl->contr->ns->floorbox_update ();
		1152	}
		1153
		1154	for (tmp = ms.bot; tmp; tmp = tmp->above)
		1155	{
		1156	/* No point updating the players look faces if he is the object
		1157	* being removed.
1280	*/	1158	*/
1281	if (tmp->container == op)	1159
		1160	/* See if object moving off should effect something */
		1161	if (check_walk_off
		1162	&& ((move_type & tmp->move_off)
		1163	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1282	{	1164	{
1283	CLEAR_FLAG (op, FLAG_APPLIED);	1165	move_apply (tmp, this, 0);
1284	tmp->container = NULL;	1166
		1167	if (destroyed ())
		1168	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1285	}	1169	}
1286	tmp->contr->socket.update_look = 1;	1170
		1171	last = tmp;
1287	}	1172	}
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		1173
1292	move_apply (tmp, op, NULL);	1174	if (affects_los ())
1293	if (was_destroyed (op, tag))	1175	update_all_los (map, x, y);
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	{	1176	}
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);
1318
1319	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))
1320	update_all_los (op->map, op->x, op->y);
1321
1322	}	1177	}
1323		1178
1324	/*	1179	/*
1325	* merge_ob(op,top):	1180	* merge_ob(op,top):
1326	*	1181	*
1327	* This function goes through all objects below and including top, and	1182	* This function goes through all objects below and including top, and
1328	* merges op to the first matching object.	1183	* merges op to the first matching object.
1329	* If top is NULL, it is calculated.	1184	* If top is NULL, it is calculated.
1330	* Returns pointer to object if it succeded in the merge, otherwise NULL	1185	* Returns pointer to object if it succeded in the merge, otherwise NULL
1331	*/	1186	*/
1332
1333	object *	1187	object *
1334	merge_ob (object *op, object *top)	1188	merge_ob (object *op, object *top)
1335	{	1189	{
1336	if (!op->nrof)	1190	if (!op->nrof)
1337	return 0;	1191	return 0;
1338	if (top == NULL)	1192
		1193	if (!top)
1339	for (top = op; top != NULL && top->above != NULL; top = top->above);	1194	for (top = op; top && top->above; top = top->above)
		1195	;
		1196
1340	for (; top != NULL; top = top->below)	1197	for (; top; top = top->below)
1341	{	1198	if (object::can_merge (op, top))
1342	if (top == op)
1343	continue;
1344	if (CAN_MERGE (op, top))
1345	{	1199	{
1346	top->nrof += op->nrof;	1200	top->nrof += op->nrof;
1347		1201
1348	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1202	if (object *pl = top->visible_to ())
1349	op->weight = 0; /* Don't want any adjustements now */	1203	esrv_update_item (UPD_NROF, pl, top);
1350	remove_ob (op);	1204
1351	free_object (op);	1205	op->weight = 0; // cancel the addition above
		1206	op->carrying = 0; // must be 0 already
		1207
		1208	op->destroy ();
		1209
1352	return top;	1210	return top;
1353	}	1211	}
1354	}	1212
1355	return NULL;	1213	return 0;
1356	}	1214	}
1357		1215
		1216	void
		1217	object::expand_tail ()
		1218	{
		1219	if (more)
		1220	return;
		1221
		1222	object *prev = this;
		1223
		1224	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1225	{
		1226	object *op = arch_to_object (at);
		1227
		1228	op->name = name;
		1229	op->name_pl = name_pl;
		1230	op->title = title;
		1231
		1232	op->head = this;
		1233	prev->more = op;
		1234
		1235	prev = op;
		1236	}
		1237	}
		1238
1358	/*	1239	/*
1359	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1240	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1360	* job preparing multi-part monsters	1241	* job preparing multi-part monsters.
1361	*/	1242	*/
1362	object *	1243	object *
1363	insert_ob_in_map_at (object *op, mapstruct *m, object *originator, int flag, int x, int y)	1244	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1364	{	1245	{
1365	object *	1246	op->remove ();
1366	tmp;
1367		1247
1368	if (op->head)
1369	op = op->head;
1370	for (tmp = op; tmp; tmp = tmp->more)	1248	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1371	{	1249	{
1372	tmp->x = x + tmp->arch->clone.x;	1250	tmp->x = x + tmp->arch->x;
1373	tmp->y = y + tmp->arch->clone.y;	1251	tmp->y = y + tmp->arch->y;
1374	}	1252	}
		1253
1375	return insert_ob_in_map (op, m, originator, flag);	1254	return insert_ob_in_map (op, m, originator, flag);
1376	}	1255	}
1377		1256
1378	/*	1257	/*
1379	* insert_ob_in_map (op, map, originator, flag):	1258	* insert_ob_in_map (op, map, originator, flag):
…		…
1393	* Return value:	1272	* Return value:
1394	* new object if 'op' was merged with other object	1273	* new object if 'op' was merged with other object
1395	* NULL if 'op' was destroyed	1274	* NULL if 'op' was destroyed
1396	* just 'op' otherwise	1275	* just 'op' otherwise
1397	*/	1276	*/
1398
1399	object *	1277	object *
1400	insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1278	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1401	{	1279	{
1402	object *tmp, *top, *floor = NULL;	1280	op->remove ();
1403	sint16 x, y;
1404		1281
1405	if (QUERY_FLAG (op, FLAG_FREED))	1282	if (m == &freed_map)//D TODO: remove soon
1406	{	1283	{//D
1407	LOG (llevError, "Trying to insert freed object!\n");	1284	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
1408	return NULL;
1409	}	1285	}//D
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		1286
1473	/* Ideally, the caller figures this out. However, it complicates a lot	1287	/* 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	1288	* of areas of callers (eg, anything that uses find_free_spot would now
1475	* need extra work	1289	* need extra work
1476	*/	1290	*/
1477	op->map = get_map_from_coord (m, &op->x, &op->y);	1291	maptile *newmap = m;
1478	x = op->x;	1292	if (!xy_normalise (newmap, op->x, op->y))
1479	y = op->y;	1293	{
		1294	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
		1295	return 0;
		1296	}
		1297
		1298	if (object *more = op->more)
		1299	if (!insert_ob_in_map (more, m, originator, flag))
		1300	return 0;
		1301
		1302	CLEAR_FLAG (op, FLAG_REMOVED);
		1303
		1304	op->map = newmap;
		1305	mapspace &ms = op->ms ();
1480		1306
1481	/* this has to be done after we translate the coordinates.	1307	/* this has to be done after we translate the coordinates.
1482	*/	1308	*/
1483	if (op->nrof && !(flag & INS_NO_MERGE))	1309	if (op->nrof && !(flag & INS_NO_MERGE))
1484	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1310	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1485	if (CAN_MERGE (op, tmp))	1311	if (object::can_merge (op, tmp))
1486	{	1312	{
		1313	// TODO: we actually want to update tmp, not op,
		1314	// but some caller surely breaks when we return tmp
		1315	// from here :/
1487	op->nrof += tmp->nrof;	1316	op->nrof += tmp->nrof;
1488	remove_ob (tmp);	1317	tmp->destroy ();
1489	free_object (tmp);
1490	}	1318	}
1491		1319
1492	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1320	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1493	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1321	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1494		1322
…		…
1501	{	1329	{
1502	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1330	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1503	abort ();	1331	abort ();
1504	}	1332	}
1505		1333
		1334	if (!originator->is_on_map ())
		1335	{
		1336	LOG (llevError, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1337	op->debug_desc (), originator->debug_desc ());
		1338	abort ();
		1339	}
		1340
1506	op->above = originator;	1341	op->above = originator;
1507	op->below = originator->below;	1342	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;	1343	originator->below = op;
		1344
		1345	*(op->below ? &op->below->above : &ms.bot) = op;
1516	}	1346	}
1517	else	1347	else
1518	{	1348	{
		1349	object *floor = 0;
		1350	object *top = ms.top;
		1351
1519	/* If there are other objects, then */	1352	/* If there are other objects, then */
1520	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1353	if (top)
1521	{	1354	{
1522	object *last = NULL;
1523
1524	/*	1355	/*
1525	* If there are multiple objects on this space, we do some trickier handling.	1356	* If there are multiple objects on this space, we do some trickier handling.
1526	* We've already dealt with merging if appropriate.	1357	* We've already dealt with merging if appropriate.
1527	* Generally, we want to put the new object on top. But if	1358	* Generally, we want to put the new object on top. But if
1528	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1359	* 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	1362	* 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	1363	* 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	1364	* when lots of spells are cast in one area. Currently, it is presumed
1534	* that flying non pickable objects are spell objects.	1365	* that flying non pickable objects are spell objects.
1535	*/	1366	*/
1536		1367	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1537	while (top != NULL)
1538	{	1368	{
1539	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1369	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
1540	floor = top;	1370	floor = tmp;
		1371
1541	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1372	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1542	{	1373	{
1543	/* We insert above top, so we want this object below this */	1374	/* We insert above top, so we want this object below this */
1544	top = top->below;	1375	top = tmp->below;
1545	break;	1376	break;
1546	}	1377	}
1547	last = top;	1378
1548	top = top->above;	1379	top = tmp;
1549	}	1380	}
1550	/* Don't want top to be NULL, so set it to the last valid object */
1551	top = last;
1552		1381
1553	/* We let update_position deal with figuring out what the space	1382	/* We let update_position deal with figuring out what the space
1554	* looks like instead of lots of conditions here.	1383	* looks like instead of lots of conditions here.
1555	* makes things faster, and effectively the same result.	1384	* makes things faster, and effectively the same result.
1556	*/	1385	*/
1557		1386
1558	/* Have object 'fall below' other objects that block view.	1387	/* Have object 'fall below' other objects that block view.
1559	* Unless those objects are exits, type 66	1388	* Unless those objects are exits.
1560	* If INS_ON_TOP is used, don't do this processing	1389	* If INS_ON_TOP is used, don't do this processing
1561	* Need to find the object that in fact blocks view, otherwise	1390	* Need to find the object that in fact blocks view, otherwise
1562	* stacking is a bit odd.	1391	* stacking is a bit odd.
1563	*/	1392	*/
1564	if (!(flag & INS_ON_TOP) &&	1393	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))	1394	&& ms.flags () & P_BLOCKSVIEW
		1395	&& (op->face && !faces [op->face].visibility))
1566	{	1396	{
		1397	object *last;
		1398
1567	for (last = top; last != floor; last = last->below)	1399	for (last = top; last != floor; last = last->below)
1568	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1400	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1569	break;	1401	break;
		1402
1570	/* Check to see if we found the object that blocks view,	1403	/* Check to see if we found the object that blocks view,
1571	* and make sure we have a below pointer for it so that	1404	* and make sure we have a below pointer for it so that
1572	* we can get inserted below this one, which requires we	1405	* we can get inserted below this one, which requires we
1573	* set top to the object below us.	1406	* set top to the object below us.
1574	*/	1407	*/
1575	if (last && last->below && last != floor)	1408	if (last && last->below && last != floor)
1576	top = last->below;	1409	top = last->below;
1577	}	1410	}
1578	} /* If objects on this space */	1411	} /* If objects on this space */
1579		1412
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)	1413	if (flag & INS_ABOVE_FLOOR_ONLY)
1584	top = floor;	1414	top = floor;
1585		1415
1586	/* Top is the object that our object (op) is going to get inserted above.	1416	// insert object above top, or bottom-most if top = 0
1587	*/
1588
1589	/* First object on this space */
1590	if (!top)	1417	if (!top)
1591	{	1418	{
1592	op->above = GET_MAP_OB (op->map, op->x, op->y);
1593
1594	if (op->above)
1595	op->above->below = op;
1596
1597	op->below = NULL;	1419	op->below = 0;
1598	SET_MAP_OB (op->map, op->x, op->y, op);	1420	op->above = ms.bot;
		1421	ms.bot = op;
		1422
		1423	*(op->above ? &op->above->below : &ms.top) = op;
1599	}	1424	}
1600	else	1425	else
1601	{ /* get inserted into the stack above top */	1426	{
1602	op->above = top->above;	1427	op->above = top->above;
1603
1604	if (op->above)
1605	op->above->below = op;	1428	top->above = op;
1606		1429
1607	op->below = top;	1430	op->below = top;
1608	top->above = op;	1431	*(op->above ? &op->above->below : &ms.top) = op;
1609	}	1432	}
		1433	}
1610		1434
1611	if (op->above == NULL)	1435	if (op->is_player ())
1612	SET_MAP_TOP (op->map, op->x, op->y, op);	1436	{
1613	} /* else not INS_BELOW_ORIGINATOR */
1614
1615	if (op->type == PLAYER)
1616	op->contr->do_los = 1;	1437	op->contr->do_los = 1;
		1438	++op->map->players;
		1439	op->map->touch ();
		1440	}
1617		1441
1618	/* If we have a floor, we know the player, if any, will be above	1442	op->map->dirty = true;
1619	* it, so save a few ticks and start from there.	1443
1620	*/	1444	if (object *pl = ms.player ())
1621	if (!(flag & INS_MAP_LOAD))	1445	//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)	1446	//esrv_send_item (pl, op);
1623	if (tmp->type == PLAYER)	1447	//TODO: update floorbox to preserve ordering
1624	tmp->contr->socket.update_look = 1;	1448	if (pl->contr->ns)
		1449	pl->contr->ns->floorbox_update ();
1625		1450
1626	/* If this object glows, it may affect lighting conditions that are	1451	/* If this object glows, it may affect lighting conditions that are
1627	* visible to others on this map. But update_all_los is really	1452	* 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	1453	* 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	1454	* on the map will get recalculated. The players could very well
1630	* be far away from this change and not affected in any way -	1455	* be far away from this change and not affected in any way -
1631	* this should get redone to only look for players within range,	1456	* this should get redone to only look for players within range,
1632	* or just updating the P_NEED_UPDATE for spaces within this area	1457	* or just updating the P_UPTODATE for spaces within this area
1633	* of effect may be sufficient.	1458	* of effect may be sufficient.
1634	*/	1459	*/
1635	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1460	if (op->affects_los ())
		1461	{
		1462	op->ms ().invalidate ();
1636	update_all_los (op->map, op->x, op->y);	1463	update_all_los (op->map, op->x, op->y);
1637		1464	}
1638		1465
1639	/* updates flags (blocked, alive, no magic, etc) for this map space */	1466	/* updates flags (blocked, alive, no magic, etc) for this map space */
1640	update_object (op, UP_OBJ_INSERT);	1467	update_object (op, UP_OBJ_INSERT);
1641		1468
		1469	INVOKE_OBJECT (INSERT, op);
1642		1470
1643	/* Don't know if moving this to the end will break anything. However,	1471	/* 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.	1472	* we want to have floorbox_update called before calling this.
1645	*	1473	*
1646	* check_move_on() must be after this because code called from	1474	* check_move_on() must be after this because code called from
1647	* check_move_on() depends on correct map flags (so functions like	1475	* check_move_on() depends on correct map flags (so functions like
1648	* blocked() and wall() work properly), and these flags are updated by	1476	* blocked() and wall() work properly), and these flags are updated by
1649	* update_object().	1477	* update_object().
1650	*/	1478	*/
1651		1479
1652	/* if this is not the head or flag has been passed, don't check walk on status */	1480	/* 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)	1481	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1654	{	1482	{
1655	if (check_move_on (op, originator))	1483	if (check_move_on (op, originator))
1656	return NULL;	1484	return 0;
1657		1485
1658	/* If we are a multi part object, lets work our way through the check	1486	/* If we are a multi part object, lets work our way through the check
1659	* walk on's.	1487	* walk on's.
1660	*/	1488	*/
1661	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1489	for (object *tmp = op->more; tmp; tmp = tmp->more)
1662	if (check_move_on (tmp, originator))	1490	if (check_move_on (tmp, originator))
1663	return NULL;	1491	return 0;
1664	}	1492	}
1665		1493
1666	return op;	1494	return op;
1667	}	1495	}
1668		1496
1669	/* this function inserts an object in the map, but if it	1497	/* 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.	1498	* 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.	1499	* op is the object to insert it under: supplies x and the map.
1672	*/	1500	*/
1673	void	1501	void
1674	replace_insert_ob_in_map (const char *arch_string, object *op)	1502	replace_insert_ob_in_map (shstr_tmp archname, object *op)
1675	{	1503	{
1676	object *tmp;
1677	object *tmp1;
1678
1679	/* first search for itself and remove any old instances */	1504	/* first search for itself and remove any old instances */
1680		1505
1681	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1506	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1682	{
1683	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1507	if (tmp->arch->archname == archname) /* same archetype */
1684	{	1508	tmp->destroy ();
1685	remove_ob (tmp);
1686	free_object (tmp);
1687	}
1688	}
1689		1509
1690	tmp1 = arch_to_object (find_archetype (arch_string));	1510	object *tmp = arch_to_object (archetype::find (archname));
1691		1511
1692	tmp1->x = op->x;	1512	tmp->x = op->x;
1693	tmp1->y = op->y;	1513	tmp->y = op->y;
		1514
1694	insert_ob_in_map (tmp1, op->map, op, 0);	1515	insert_ob_in_map (tmp, op->map, op, 0);
1695	}	1516	}
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		1517
1705	object *	1518	object *
1706	get_split_ob (object *orig_ob, uint32 nr)	1519	object::insert_at (object *where, object *originator, int flags)
1707	{	1520	{
1708	object *	1521	if (where->env)
1709	newob;	1522	return where->env->insert (this);
1710	int	1523	else
1711	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1524	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	}	1525	}
1740		1526
1741	/*	1527	/*
1742	* decrease_ob_nr(object, number) decreases a specified number from	1528	* decrease(object, number) decreases a specified number from
1743	* the amount of an object. If the amount reaches 0, the object	1529	* the amount of an object. If the amount reaches 0, the object
1744	* is subsequently removed and freed.	1530	* is subsequently removed and freed.
1745	*	1531	*
1746	* Return value: 'op' if something is left, NULL if the amount reached 0	1532	* Return value: 'op' if something is left, NULL if the amount reached 0
1747	*/	1533	*/
		1534	bool
		1535	object::decrease (sint32 nr)
		1536	{
		1537	if (!nr)
		1538	return true;
1748		1539
		1540	nr = min (nr, nrof);
		1541
		1542	if (nrof > nr)
		1543	{
		1544	nrof -= nr;
		1545	adjust_weight (env, -weight * max (1, nr)); // carrying == 0
		1546
		1547	if (object *pl = visible_to ())
		1548	esrv_update_item (UPD_NROF, pl, this);
		1549
		1550	return true;
		1551	}
		1552	else
		1553	{
		1554	destroy ();
		1555	return false;
		1556	}
		1557	}
		1558
		1559	/*
		1560	* split(ob,nr) splits up ob into two parts. The part which
		1561	* is returned contains nr objects, and the remaining parts contains
		1562	* the rest (or is removed and returned if that number is 0).
		1563	* On failure, NULL is returned.
		1564	*/
1749	object *	1565	object *
1750	decrease_ob_nr (object *op, uint32 i)	1566	object::split (sint32 nr)
1751	{	1567	{
1752	object *	1568	int have = number_of ();
1753	tmp;
1754	player *
1755	pl;
1756		1569
1757	if (i == 0) /* objects with op->nrof require this check */	1570	if (have < nr)
1758	return op;	1571	return 0;
1759		1572	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	}	1573	{
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);	1574	remove ();
1802	op->nrof = 0;	1575	return this;
1803	if (tmp)
1804	{
1805	esrv_del_item (tmp->contr, op->count);
1806	}
1807	}
1808	}	1576	}
1809	else	1577	else
1810	{	1578	{
1811	object *	1579	decrease (nr);
1812	above = op->above;
1813		1580
1814	if (i < op->nrof)	1581	object *op = deep_clone ();
1815	{
1816	op->nrof -= i;
1817	}
1818	else
1819	{
1820	remove_ob (op);
1821	op->nrof = 0;	1582	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;	1583	return op;
1837	}	1584	}
1838	else	1585	}
		1586
		1587	object *
		1588	insert_ob_in_ob (object *op, object *where)
		1589	{
		1590	if (!where)
1839	{	1591	{
1840	free_object (op);	1592	char *dump = dump_object (op);
		1593	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1594	free (dump);
1841	return NULL;	1595	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	{	1596	}
1855	if (op->type == CONTAINER)	1597
1856	{	1598	if (where->head_ () != where)
1857	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1858	}
1859	op->carrying += weight;
1860	op = op->env;
1861	}	1599	{
1862	}	1600	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1601	where = where->head;
		1602	}
1863		1603
		1604	return where->insert (op);
		1605	}
		1606
1864	/*	1607	/*
1865	* insert_ob_in_ob(op,environment):	1608	* env->insert (op)
1866	* This function inserts the object op in the linked list	1609	* This function inserts the object op in the linked list
1867	* inside the object environment.	1610	* inside the object environment.
1868	*	1611	*
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	1612	* The function returns now pointer to inserted item, and return value can
1875	* be != op, if items are merged. -Tero	1613	* be != op, if items are merged. -Tero
1876	*/	1614	*/
1877
1878	object *	1615	object *
1879	insert_ob_in_ob (object *op, object *where)	1616	object::insert (object *op)
1880	{	1617	{
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)	1618	if (op->more)
1903	{	1619	{
1904	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1620	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1905	return op;	1621	return op;
1906	}	1622	}
1907	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1623
1908	CLEAR_FLAG (op, FLAG_REMOVED);	1624	op->remove ();
		1625
		1626	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1627
1909	if (op->nrof)	1628	if (op->nrof)
1910	{
1911	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1629	for (object *tmp = inv; tmp; tmp = tmp->below)
1912	if (CAN_MERGE (tmp, op))	1630	if (object::can_merge (tmp, op))
1913	{	1631	{
1914	/* return the original object and remove inserted object	1632	/* return the original object and remove inserted object
1915	(client needs the original object) */	1633	(client needs the original object) */
1916	tmp->nrof += op->nrof;	1634	tmp->nrof += op->nrof;
1917	/* Weight handling gets pretty funky. Since we are adding to	1635
1918	* tmp->nrof, we need to increase the weight.	1636	if (object *pl = tmp->visible_to ())
1919	*/	1637	esrv_update_item (UPD_NROF, pl, tmp);
1920	add_weight (where, op->weight * op->nrof);	1638
1921	SET_FLAG (op, FLAG_REMOVED);	1639	adjust_weight (this, op->total_weight ());
1922	free_object (op); /* free the inserted object */	1640
		1641	op->destroy ();
1923	op = tmp;	1642	op = tmp;
1924	remove_ob (op); /* and fix old object's links */	1643	goto inserted;
1925	CLEAR_FLAG (op, FLAG_REMOVED);
1926	break;
1927	}	1644	}
1928		1645
1929	/* I assume combined objects have no inventory	1646	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;	1647	op->map = 0;
1948	op->env = where;	1648	op->x = 0;
		1649	op->y = 0;
		1650
1949	op->above = NULL;	1651	op->above = 0;
1950	op->below = NULL;	1652	op->below = inv;
1951	op->x = 0, op->y = 0;	1653	op->env = this;
1952		1654
		1655	if (inv)
		1656	inv->above = op;
		1657
		1658	inv = op;
		1659
		1660	op->flag [FLAG_REMOVED] = 0;
		1661
		1662	if (object *pl = op->visible_to ())
		1663	esrv_send_item (pl, op);
		1664
		1665	adjust_weight (this, op->total_weight ());
		1666
		1667	inserted:
1953	/* reset the light list and los of the players on the map */	1668	/* reset the light list and los of the players on the map */
1954	if ((op->glow_radius != 0) && where->map)	1669	if (op->glow_radius && is_on_map ())
1955	{
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	}	1670	{
1962		1671	update_stats ();
1963	/* Client has no idea of ordering so lets not bother ordering it here.	1672	update_all_los (map, x, y);
1964	* It sure simplifies this function...
1965	*/
1966	if (where->inv == NULL)
1967	where->inv = op;
1968	else
1969	{	1673	}
1970	op->below = where->inv;	1674	else if (is_player () && !flag [FLAG_NO_FIX_PLAYER])
1971	op->below->above = op;	1675	// if this is a player's inventory, update stats
1972	where->inv = op;	1676	update_stats ();
1973	}	1677
		1678	INVOKE_OBJECT (INSERT, this);
		1679
1974	return op;	1680	return op;
1975	}	1681	}
1976		1682
1977	/*	1683	/*
1978	* Checks if any objects has a move_type that matches objects	1684	* Checks if any objects has a move_type that matches objects
…		…
1992	*	1698	*
1993	* MSW 2001-07-08: Check all objects on space, not just those below	1699	* 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	1700	* object being inserted. insert_ob_in_map may not put new objects
1995	* on top.	1701	* on top.
1996	*/	1702	*/
1997
1998	int	1703	int
1999	check_move_on (object *op, object *originator)	1704	check_move_on (object *op, object *originator)
2000	{	1705	{
2001	object *	1706	object *tmp;
2002	tmp;	1707	maptile *m = op->map;
2003	tag_t
2004	tag;
2005	mapstruct *
2006	m = op->map;
2007	int
2008	x = op->x, y = op->y;	1708	int x = op->x, y = op->y;
2009	MoveType	1709
2010	move_on,	1710	MoveType move_on, move_slow, move_block;
2011	move_slow,
2012	move_block;
2013		1711
2014	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1712	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2015	return 0;	1713	return 0;
2016
2017	tag = op->count;
2018		1714
2019	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1715	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);	1716	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);	1717	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
2022		1718
…		…
2038		1734
2039	/* The objects have to be checked from top to bottom.	1735	/* The objects have to be checked from top to bottom.
2040	* Hence, we first go to the top:	1736	* Hence, we first go to the top:
2041	*/	1737	*/
2042		1738
2043	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1739	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
2044	{	1740	{
2045	/* Trim the search when we find the first other spell effect	1741	/* Trim the search when we find the first other spell effect
2046	* this helps performance so that if a space has 50 spell objects,	1742	* this helps performance so that if a space has 50 spell objects,
2047	* we don't need to check all of them.	1743	* we don't need to check all of them.
2048	*/	1744	*/
2049	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))	1745	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
2050	break;	1746	break;
2051	}	1747	}
		1748
2052	for (; tmp != NULL; tmp = tmp->below)	1749	for (; tmp; tmp = tmp->below)
2053	{	1750	{
2054	if (tmp == op)	1751	if (tmp == op)
2055	continue; /* Can't apply yourself */	1752	continue; /* Can't apply yourself */
2056		1753
2057	/* Check to see if one of the movement types should be slowed down.	1754	/* Check to see if one of the movement types should be slowed down.
…		…
2065	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1762	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))	1763	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
2067	{	1764	{
2068		1765
2069	float	1766	float
2070	diff;
2071
2072	diff = tmp->move_slow_penalty * FABS (op->speed);	1767	diff = tmp->move_slow_penalty * fabs (op->speed);
2073	if (op->type == PLAYER)	1768
2074	{	1769	if (op->is_player ())
2075	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1770	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)))	1771	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
2077	{
2078	diff /= 4.0;	1772	diff /= 4.0;
2079	}	1773
2080	}
2081	op->speed_left -= diff;	1774	op->speed_left -= diff;
2082	}	1775	}
2083	}	1776	}
2084		1777
2085	/* Basically same logic as above, except now for actual apply. */	1778	/* Basically same logic as above, except now for actual apply. */
2086	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1779	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))	1780	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2088	{	1781	{
2089
2090	move_apply (tmp, op, originator);	1782	move_apply (tmp, op, originator);
		1783
2091	if (was_destroyed (op, tag))	1784	if (op->destroyed ())
2092	return 1;	1785	return 1;
2093		1786
2094	/* what the person/creature stepped onto has moved the object	1787	/* what the person/creature stepped onto has moved the object
2095	* someplace new. Don't process any further - if we did,	1788	* someplace new. Don't process any further - if we did,
2096	* have a feeling strange problems would result.	1789	* have a feeling strange problems would result.
2097	*/	1790	*/
2098	if (op->map != m || op->x != x || op->y != y)	1791	if (op->map != m || op->x != x || op->y != y)
2099	return 0;	1792	return 0;
2100	}	1793	}
2101	}	1794	}
		1795
2102	return 0;	1796	return 0;
2103	}	1797	}
2104		1798
2105	/*	1799	/*
2106	* present_arch(arch, map, x, y) searches for any objects with	1800	* present_arch(arch, map, x, y) searches for any objects with
2107	* a matching archetype at the given map and coordinates.	1801	* a matching archetype at the given map and coordinates.
2108	* The first matching object is returned, or NULL if none.	1802	* The first matching object is returned, or NULL if none.
2109	*/	1803	*/
2110
2111	object *	1804	object *
2112	present_arch (const archetype *at, mapstruct *m, int x, int y)	1805	present_arch (const archetype *at, maptile *m, int x, int y)
2113	{	1806	{
2114	object *
2115	tmp;
2116
2117	if (m == NULL || out_of_map (m, x, y))	1807	if (!m || out_of_map (m, x, y))
2118	{	1808	{
2119	LOG (llevError, "Present_arch called outside map.\n");	1809	LOG (llevError, "Present_arch called outside map.\n");
2120	return NULL;	1810	return NULL;
2121	}	1811	}
2122	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1812
2123	if (tmp->arch == at)	1813	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1814	if (tmp->arch->archname == at->archname)
2124	return tmp;	1815	return tmp;
		1816
2125	return NULL;	1817	return NULL;
2126	}	1818	}
2127		1819
2128	/*	1820	/*
2129	* present(type, map, x, y) searches for any objects with	1821	* present(type, map, x, y) searches for any objects with
2130	* a matching type variable at the given map and coordinates.	1822	* a matching type variable at the given map and coordinates.
2131	* The first matching object is returned, or NULL if none.	1823	* The first matching object is returned, or NULL if none.
2132	*/	1824	*/
2133
2134	object *	1825	object *
2135	present (unsigned char type, mapstruct *m, int x, int y)	1826	present (unsigned char type, maptile *m, int x, int y)
2136	{	1827	{
2137	object *
2138	tmp;
2139
2140	if (out_of_map (m, x, y))	1828	if (out_of_map (m, x, y))
2141	{	1829	{
2142	LOG (llevError, "Present called outside map.\n");	1830	LOG (llevError, "Present called outside map.\n");
2143	return NULL;	1831	return NULL;
2144	}	1832	}
2145	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1833
		1834	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2146	if (tmp->type == type)	1835	if (tmp->type == type)
2147	return tmp;	1836	return tmp;
		1837
2148	return NULL;	1838	return NULL;
2149	}	1839	}
2150		1840
2151	/*	1841	/*
2152	* present_in_ob(type, object) searches for any objects with	1842	* present_in_ob(type, object) searches for any objects with
2153	* a matching type variable in the inventory of the given object.	1843	* a matching type variable in the inventory of the given object.
2154	* The first matching object is returned, or NULL if none.	1844	* The first matching object is returned, or NULL if none.
2155	*/	1845	*/
2156
2157	object *	1846	object *
2158	present_in_ob (unsigned char type, const object *op)	1847	present_in_ob (unsigned char type, const object *op)
2159	{	1848	{
2160	object *
2161	tmp;
2162
2163	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1849	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2164	if (tmp->type == type)	1850	if (tmp->type == type)
2165	return tmp;	1851	return tmp;
		1852
2166	return NULL;	1853	return NULL;
2167	}	1854	}
2168		1855
2169	/*	1856	/*
2170	* present_in_ob (type, str, object) searches for any objects with	1857	* present_in_ob (type, str, object) searches for any objects with
…		…
2178	* str is the string to match against. Note that we match against	1865	* 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	1866	* 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	1867	* spell code can use one object type (force), but change it's name
2181	* to be unique.	1868	* to be unique.
2182	*/	1869	*/
2183
2184	object *	1870	object *
2185	present_in_ob_by_name (int type, const char *str, const object *op)	1871	present_in_ob_by_name (int type, const char *str, const object *op)
2186	{	1872	{
2187	object *
2188	tmp;
2189
2190	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1873	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2191	{
2192	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1874	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2193	return tmp;	1875	return tmp;
2194	}	1876
2195	return NULL;	1877	return 0;
2196	}	1878	}
2197		1879
2198	/*	1880	/*
2199	* present_arch_in_ob(archetype, object) searches for any objects with	1881	* present_arch_in_ob(archetype, object) searches for any objects with
2200	* a matching archetype in the inventory of the given object.	1882	* a matching archetype in the inventory of the given object.
2201	* The first matching object is returned, or NULL if none.	1883	* The first matching object is returned, or NULL if none.
2202	*/	1884	*/
2203
2204	object *	1885	object *
2205	present_arch_in_ob (const archetype *at, const object *op)	1886	present_arch_in_ob (const archetype *at, const object *op)
2206	{	1887	{
2207	object *
2208	tmp;
2209
2210	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1888	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2211	if (tmp->arch == at)	1889	if (tmp->arch->archname == at->archname)
2212	return tmp;	1890	return tmp;
		1891
2213	return NULL;	1892	return NULL;
2214	}	1893	}
2215		1894
2216	/*	1895	/*
2217	* activate recursively a flag on an object inventory	1896	* activate recursively a flag on an object inventory
2218	*/	1897	*/
2219	void	1898	void
2220	flag_inv (object *op, int flag)	1899	flag_inv (object *op, int flag)
2221	{	1900	{
2222	object *
2223	tmp;
2224
2225	if (op->inv)
2226	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1901	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2227	{	1902	{
2228	SET_FLAG (tmp, flag);	1903	SET_FLAG (tmp, flag);
2229	flag_inv (tmp, flag);	1904	flag_inv (tmp, flag);
2230	}	1905	}
2231	} /*	1906	}
		1907
		1908	/*
2232	* desactivate recursively a flag on an object inventory	1909	* deactivate recursively a flag on an object inventory
2233	*/	1910	*/
2234	void	1911	void
2235	unflag_inv (object *op, int flag)	1912	unflag_inv (object *op, int flag)
2236	{	1913	{
2237	object *
2238	tmp;
2239
2240	if (op->inv)
2241	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1914	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2242	{	1915	{
2243	CLEAR_FLAG (tmp, flag);	1916	CLEAR_FLAG (tmp, flag);
2244	unflag_inv (tmp, flag);	1917	unflag_inv (tmp, flag);
2245	}	1918	}
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	}	1919	}
2261		1920
2262	/*	1921	/*
2263	* find_free_spot(object, map, x, y, start, stop) will search for	1922	* 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	1923	* a spot at the given map and coordinates which will be able to contain
…		…
2266	* to search (see the freearr_x/y[] definition).	1925	* to search (see the freearr_x/y[] definition).
2267	* It returns a random choice among the alternatives found.	1926	* 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	1927	* 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	1928	* 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)	1929	* 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	1930	* Note: This function does correctly handle tiled maps, but does not
2275	* inform the caller. However, insert_ob_in_map will update as	1931	* inform the caller. However, insert_ob_in_map will update as
2276	* necessary, so the caller shouldn't need to do any special work.	1932	* 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	1933	* 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	1934	* 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	1935	* 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	1936	* the archetype because that isn't correct if the monster has been
2281	* customized, changed states, etc.	1937	* customized, changed states, etc.
2282	*/	1938	*/
2283
2284	int	1939	int
2285	find_free_spot (const object *ob, mapstruct *m, int x, int y, int start, int stop)	1940	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2286	{	1941	{
2287	int
2288	i,
2289	index = 0, flag;
2290	static int
2291	altern[SIZEOFFREE];	1942	int altern[SIZEOFFREE];
		1943	int index = 0, flag;
2292		1944
2293	for (i = start; i < stop; i++)	1945	for (int i = start; i < stop; i++)
2294	{	1946	{
2295	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1947	mapxy pos (m, x, y); pos.move (i);
2296	if (!flag)	1948
		1949	if (!pos.normalise ())
		1950	continue;
		1951
		1952	mapspace &ms = *pos;
		1953
		1954	if (ms.flags () & P_IS_ALIVE)
		1955	continue;
		1956
		1957	/* However, often
		1958	* ob doesn't have any move type (when used to place exits)
		1959	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1960	*/
		1961	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1962	{
2297	altern[index++] = i;	1963	altern [index++] = i;
		1964	continue;
		1965	}
2298		1966
2299	/* Basically, if we find a wall on a space, we cut down the search size.	1967	/* 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.	1968	* 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 -	1969	* 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	1970	* 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	1971	* spaces in all the other directions, this will reduce the search space
2304	* to only the spaces immediately surrounding the target area, and	1972	* to only the spaces immediately surrounding the target area, and
2305	* won't look 2 spaces south of the target space.	1973	* won't look 2 spaces south of the target space.
2306	*/	1974	*/
2307	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	1975	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1976	{
2308	stop = maxfree[i];	1977	stop = maxfree[i];
		1978	continue;
		1979	}
		1980
		1981	/* Note it is intentional that we check ob - the movement type of the
		1982	* head of the object should correspond for the entire object.
		1983	*/
		1984	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1985	continue;
		1986
		1987	if (ob->blocked (pos.m, pos.x, pos.y))
		1988	continue;
		1989
		1990	altern [index++] = i;
2309	}	1991	}
		1992
2310	if (!index)	1993	if (!index)
2311	return -1;	1994	return -1;
		1995
2312	return altern[RANDOM () % index];	1996	return altern [rndm (index)];
2313	}	1997	}
2314		1998
2315	/*	1999	/*
2316	* find_first_free_spot(archetype, mapstruct, x, y) works like	2000	* find_first_free_spot(archetype, maptile, x, y) works like
2317	* find_free_spot(), but it will search max number of squares.	2001	* find_free_spot(), but it will search max number of squares.
2318	* But it will return the first available spot, not a random choice.	2002	* 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.	2003	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2320	*/	2004	*/
2321
2322	int	2005	int
2323	find_first_free_spot (const object *ob, mapstruct *m, int x, int y)	2006	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2324	{	2007	{
2325	int
2326	i;
2327
2328	for (i = 0; i < SIZEOFFREE; i++)	2008	for (int i = 0; i < SIZEOFFREE; i++)
2329	{
2330	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2009	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2331	return i;	2010	return i;
2332	}	2011
2333	return -1;	2012	return -1;
2334	}	2013	}
2335		2014
2336	/*	2015	/*
2337	* The function permute(arr, begin, end) randomly reorders the array	2016	* The function permute(arr, begin, end) randomly reorders the array
2338	* arr[begin..end-1].	2017	* arr[begin..end-1].
		2018	* now uses a fisher-yates shuffle, old permute was broken
2339	*/	2019	*/
2340	static void	2020	static void
2341	permute (int *arr, int begin, int end)	2021	permute (int *arr, int begin, int end)
2342	{	2022	{
2343	int	2023	arr += begin;
2344	i,
2345	j,
2346	tmp,
2347	len;
2348
2349	len = end - begin;	2024	end -= begin;
2350	for (i = begin; i < end; i++)
2351	{
2352	j = begin + RANDOM () % len;
2353		2025
2354	tmp = arr[i];	2026	while (--end)
2355	arr[i] = arr[j];	2027	swap (arr [end], arr [rndm (end + 1)]);
2356	arr[j] = tmp;
2357	}
2358	}	2028	}
2359		2029
2360	/* new function to make monster searching more efficient, and effective!	2030	/* new function to make monster searching more efficient, and effective!
2361	* This basically returns a randomized array (in the passed pointer) of	2031	* 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	2032	* 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.	2035	* the 3x3 area will be searched, just not in a predictable order.
2366	*/	2036	*/
2367	void	2037	void
2368	get_search_arr (int *search_arr)	2038	get_search_arr (int *search_arr)
2369	{	2039	{
2370	int	2040	int i;
2371	i;
2372		2041
2373	for (i = 0; i < SIZEOFFREE; i++)	2042	for (i = 0; i < SIZEOFFREE; i++)
2374	{
2375	search_arr[i] = i;	2043	search_arr[i] = i;
2376	}
2377		2044
2378	permute (search_arr, 1, SIZEOFFREE1 + 1);	2045	permute (search_arr, 1, SIZEOFFREE1 + 1);
2379	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2046	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2380	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2047	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2381	}	2048	}
…		…
2390	* Perhaps incorrectly, but I'm making the assumption that exclude	2057	* 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	2058	* 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	2059	* because we have to know what movement the thing looking to move
2393	* there is capable of.	2060	* there is capable of.
2394	*/	2061	*/
2395
2396	int	2062	int
2397	find_dir (mapstruct *m, int x, int y, object *exclude)	2063	find_dir (maptile *m, int x, int y, object *exclude)
2398	{	2064	{
2399	int
2400	i,
2401	max = SIZEOFFREE, mflags;	2065	int max = SIZEOFFREE, mflags;
2402	sint16	2066	MoveType move_type;
2403	nx,
2404	ny;
2405	object *
2406	tmp;
2407	mapstruct *
2408	mp;
2409	MoveType
2410	blocked,
2411	move_type;
2412		2067
2413	if (exclude && exclude->head)	2068	if (exclude && exclude->head_ () != exclude)
2414	{	2069	{
2415	exclude = exclude->head;	2070	exclude = exclude->head;
2416	move_type = exclude->move_type;	2071	move_type = exclude->move_type;
2417	}	2072	}
2418	else	2073	else
2419	{	2074	{
2420	/* If we don't have anything, presume it can use all movement types. */	2075	/* If we don't have anything, presume it can use all movement types. */
2421	move_type = MOVE_ALL;	2076	move_type = MOVE_ALL;
2422	}	2077	}
2423		2078
2424	for (i = 1; i < max; i++)	2079	for (int i = 1; i < max; i++)
2425	{	2080	{
2426	mp = m;	2081	mapxy pos (m, x, y);
2427	nx = x + freearr_x[i];	2082	pos.move (i);
2428	ny = y + freearr_y[i];
2429		2083
2430	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2084	if (!pos.normalise ())
2431	if (mflags & P_OUT_OF_MAP)
2432	{
2433	max = maxfree[i];	2085	max = maxfree[i];
2434	}
2435	else	2086	else
2436	{	2087	{
2437	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2088	mapspace &ms = *pos;
2438		2089
2439	if ((move_type & blocked) == move_type)	2090	if ((move_type & ms.move_block) == move_type)
		2091	max = maxfree [i];
		2092	else if (ms.flags () & P_IS_ALIVE)
2440	{	2093	{
2441	max = maxfree[i];	2094	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
2442	}	2095	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2443	else if (mflags & P_IS_ALIVE)	2096	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2444	{
2445	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2446	{
2447	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2448	{
2449	break;
2450	}
2451	}
2452	if (tmp)
2453	{
2454	return freedir[i];	2097	return freedir [i];
2455	}
2456	}	2098	}
2457	}	2099	}
2458	}	2100	}
		2101
2459	return 0;	2102	return 0;
2460	}	2103	}
2461		2104
2462	/*	2105	/*
2463	* distance(object 1, object 2) will return the square of the	2106	* distance(object 1, object 2) will return the square of the
2464	* distance between the two given objects.	2107	* distance between the two given objects.
2465	*/	2108	*/
2466
2467	int	2109	int
2468	distance (const object *ob1, const object *ob2)	2110	distance (const object *ob1, const object *ob2)
2469	{	2111	{
2470	int
2471	i;
2472
2473	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2112	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2474	return i;
2475	}	2113	}
2476		2114
2477	/*	2115	/*
2478	* find_dir_2(delta-x,delta-y) will return a direction in which	2116	* 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	2117	* an object which has subtracted the x and y coordinates of another
2480	* object, needs to travel toward it.	2118	* object, needs to travel toward it.
2481	*/	2119	*/
2482
2483	int	2120	int
2484	find_dir_2 (int x, int y)	2121	find_dir_2 (int x, int y)
2485	{	2122	{
2486	int	2123	int q;
2487	q;
2488		2124
2489	if (y)	2125	if (y)
2490	q = x * 100 / y;	2126	q = x * 100 / y;
2491	else if (x)	2127	else if (x)
2492	q = -300 * x;	2128	q = -300 * x;
…		…
2517		2153
2518	return 3;	2154	return 3;
2519	}	2155	}
2520		2156
2521	/*	2157	/*
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	2158	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2539	* between two directions (which are expected to be absolute (see absdir())	2159	* between two directions (which are expected to be absolute (see absdir())
2540	*/	2160	*/
2541
2542	int	2161	int
2543	dirdiff (int dir1, int dir2)	2162	dirdiff (int dir1, int dir2)
2544	{	2163	{
2545	int	2164	int d;
2546	d;
2547		2165
2548	d = abs (dir1 - dir2);	2166	d = abs (dir1 - dir2);
2549	if (d > 4)	2167	if (d > 4)
2550	d = 8 - d;	2168	d = 8 - d;
		2169
2551	return d;	2170	return d;
2552	}	2171	}
2553		2172
2554	/* peterm:	2173	/* peterm:
2555	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2174	* 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	2177	* 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.	2178	* 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	2179	* Moved from spell_util.c to object.c with the other related direction
2561	* functions.	2180	* functions.
2562	*/	2181	*/
2563
2564	int
2565	reduction_dir[SIZEOFFREE][3] = {	2182	const int reduction_dir[SIZEOFFREE][3] = {
2566	{0, 0, 0}, /* 0 */	2183	{0, 0, 0}, /* 0 */
2567	{0, 0, 0}, /* 1 */	2184	{0, 0, 0}, /* 1 */
2568	{0, 0, 0}, /* 2 */	2185	{0, 0, 0}, /* 2 */
2569	{0, 0, 0}, /* 3 */	2186	{0, 0, 0}, /* 3 */
2570	{0, 0, 0}, /* 4 */	2187	{0, 0, 0}, /* 4 */
…		…
2618	* find a path to that monster that we found. If not,	2235	* find a path to that monster that we found. If not,
2619	* we don't bother going toward it. Returns 1 if we	2236	* we don't bother going toward it. Returns 1 if we
2620	* can see a direct way to get it	2237	* can see a direct way to get it
2621	* Modified to be map tile aware -.MSW	2238	* Modified to be map tile aware -.MSW
2622	*/	2239	*/
2623
2624
2625	int	2240	int
2626	can_see_monsterP (mapstruct *m, int x, int y, int dir)	2241	can_see_monsterP (maptile *m, int x, int y, int dir)
2627	{	2242	{
2628	sint16	2243	sint16 dx, dy;
2629	dx,
2630	dy;
2631	int
2632	mflags;	2244	int mflags;
2633		2245
2634	if (dir < 0)	2246	if (dir < 0)
2635	return 0; /* exit condition: invalid direction */	2247	return 0; /* exit condition: invalid direction */
2636		2248
2637	dx = x + freearr_x[dir];	2249	dx = x + freearr_x[dir];
…		…
2650	return 0;	2262	return 0;
2651		2263
2652	/* yes, can see. */	2264	/* yes, can see. */
2653	if (dir < 9)	2265	if (dir < 9)
2654	return 1;	2266	return 1;
		2267
2655	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2268	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]);	2269	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2270	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2657	}	2271	}
2658
2659
2660		2272
2661	/*	2273	/*
2662	* can_pick(picker, item): finds out if an object is possible to be	2274	* 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	2275	* picked up by the picker. Returnes 1 if it can be
2664	* picked up, otherwise 0.	2276	* picked up, otherwise 0.
…		…
2666	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2278	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2667	* core dumps if they do.	2279	* core dumps if they do.
2668	*	2280	*
2669	* Add a check so we can't pick up invisible objects (0.93.8)	2281	* Add a check so we can't pick up invisible objects (0.93.8)
2670	*/	2282	*/
2671
2672	int	2283	int
2673	can_pick (const object *who, const object *item)	2284	can_pick (const object *who, const object *item)
2674	{	2285	{
2675	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2286	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2676	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2287	(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));	2288	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2678	}	2289	}
2679
2680		2290
2681	/*	2291	/*
2682	* create clone from object to another	2292	* create clone from object to another
2683	*/	2293	*/
2684	object *	2294	object *
2685	object_create_clone (object *asrc)	2295	object::deep_clone ()
2686	{	2296	{
2687	object *	2297	assert (("deep_clone called on non-head object", is_head ()));
2688	dst = NULL, *tmp, *src, *part, *prev, *item;
2689		2298
2690	if (!asrc)	2299	object *dst = clone ();
2691	return NULL;
2692	src = asrc;
2693	if (src->head)
2694	src = src->head;
2695		2300
2696	prev = NULL;	2301	object *prev = dst;
2697	for (part = src; part; part = part->more)	2302	for (object *part = this->more; part; part = part->more)
2698	{	2303	{
2699	tmp = get_object ();	2304	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;	2305	tmp->head = dst;
2711	}
2712	tmp->more = NULL;
2713	if (prev)
2714	prev->more = tmp;	2306	prev->more = tmp;
2715	prev = tmp;	2307	prev = tmp;
2716	}	2308	}
2717		2309
2718	/*** copy inventory ***/
2719	for (item = src->inv; item; item = item->below)	2310	for (object *item = inv; item; item = item->below)
2720	{	2311	insert_ob_in_ob (item->deep_clone (), dst);
2721	(void) insert_ob_in_ob (object_create_clone (item), dst);
2722	}
2723		2312
2724	return dst;	2313	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	}	2314	}
2782		2315
2783	/* This returns the first object in who's inventory that	2316	/* This returns the first object in who's inventory that
2784	* has the same type and subtype match.	2317	* has the same type and subtype match.
2785	* returns NULL if no match.	2318	* returns NULL if no match.
2786	*/	2319	*/
2787	object *	2320	object *
2788	find_obj_by_type_subtype (const object *who, int type, int subtype)	2321	find_obj_by_type_subtype (const object *who, int type, int subtype)
2789	{	2322	{
2790	object *
2791	tmp;
2792
2793	for (tmp = who->inv; tmp; tmp = tmp->below)	2323	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2794	if (tmp->type == type && tmp->subtype == subtype)	2324	if (tmp->type == type && tmp->subtype == subtype)
2795	return tmp;	2325	return tmp;
2796		2326
2797	return NULL;	2327	return 0;
2798	}	2328	}
2799		2329
2800	/* If ob has a field named key, return the link from the list,	2330	shstr_tmp
2801	* otherwise return NULL.	2331	object::kv_get (shstr_tmp 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	{	2332	{
2809	key_value *	2333	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)	2334	if (kv->key == key)
		2335	return kv->value;
		2336
		2337	return shstr ();
		2338	}
		2339
		2340	void
		2341	object::kv_set (shstr_tmp key, shstr_tmp value)
		2342	{
		2343	for (key_value *kv = key_values; kv; kv = kv->next)
		2344	if (kv->key == key)
		2345	{
		2346	kv->value = value;
		2347	return;
		2348	}
		2349
		2350	key_value *kv = new key_value;
		2351
		2352	kv->next = key_values;
		2353	kv->key = key;
		2354	kv->value = value;
		2355
		2356	key_values = kv;
		2357	}
		2358
		2359	void
		2360	object::kv_del (shstr_tmp key)
		2361	{
		2362	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2363	if ((*kvp)->key == key)
		2364	{
		2365	key_value *kv = *kvp;
		2366	*kvp = (*kvp)->next;
		2367	delete kv;
		2368	return;
		2369	}
		2370	}
		2371
		2372	object::depth_iterator::depth_iterator (object *container)
		2373	: iterator_base (container)
		2374	{
		2375	while (item->inv)
		2376	item = item->inv;
		2377	}
		2378
		2379	void
		2380	object::depth_iterator::next ()
		2381	{
		2382	if (item->below)
		2383	{
		2384	item = item->below;
		2385
		2386	while (item->inv)
		2387	item = item->inv;
		2388	}
		2389	else
		2390	item = item->env;
		2391	}
		2392
		2393	const char *
		2394	object::flag_desc (char *desc, int len) const
		2395	{
		2396	char *p = desc;
		2397	bool first = true;
		2398
		2399	*p = 0;
		2400
		2401	for (int i = 0; i < NUM_FLAGS; i++)
		2402	{
		2403	if (len <= 10) // magic constant!
2815	{	2404	{
2816	return link;	2405	snprintf (p, len, ",...");
		2406	break;
2817	}	2407	}
2818	}
2819		2408
2820	return NULL;	2409	if (flag [i])
2821	}	2410	{
		2411	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2412	len -= cnt;
		2413	p += cnt;
		2414	first = false;
		2415	}
		2416	}
2822		2417
2823	/*	2418	return desc;
2824	* Returns the value of op has an extra_field for key, or NULL.	2419	}
2825	*	2420
2826	* The argument doesn't need to be a shared string.	2421	// return a suitable string describing an object in enough detail to find it
2827	*
2828	* The returned string is shared.
2829	*/
2830	const char *	2422	const char *
2831	get_ob_key_value (const object *op, const char *const key)	2423	object::debug_desc (char *info) const
2832	{	2424	{
2833	key_value *	2425	char flagdesc[512];
2834	link;	2426	char info2[256 * 4];
		2427	char *p = info;
		2428
		2429	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
		2430	count,
		2431	uuid.c_str (),
		2432	&name,
		2433	title ? ",title:\"" : "",
		2434	title ? (const char *)title : "",
		2435	title ? "\"" : "",
		2436	flag_desc (flagdesc, 512), type);
		2437
		2438	if (!flag[FLAG_REMOVED] && env)
		2439	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2440
		2441	if (map)
		2442	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2443
		2444	return info;
		2445	}
		2446
2835	const char *	2447	const char *
2836	canonical_key;	2448	object::debug_desc () const
		2449	{
		2450	static char info[3][256 * 4];
		2451	static int info_idx;
2837		2452
2838	canonical_key = shstr::find (key);	2453	return debug_desc (info [++info_idx % 3]);
		2454	}
2839		2455
2840	if (canonical_key == NULL)	2456	struct region *
2841	{	2457	object::region () const
2842	/* 1. There being a field named key on any object	2458	{
2843	* implies there'd be a shared string to find.	2459	return map ? map->region (x, y)
2844	* 2. Since there isn't, no object has this field.	2460	: region::default_region ();
2845	* 3. Therefore, *this* object doesn't have this field.	2461	}
2846	*/	2462
		2463	const materialtype_t *
		2464	object::dominant_material () const
		2465	{
		2466	if (materialtype_t *mt = name_to_material (materialname))
		2467	return mt;
		2468
		2469	return name_to_material (shstr_unknown);
		2470	}
		2471
		2472	void
		2473	object::open_container (object *new_container)
		2474	{
		2475	if (container == new_container)
2847	return NULL;	2476	return;
		2477
		2478	object *old_container = container;
		2479
		2480	if (old_container)
2848	}	2481	{
		2482	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2483	return;
2849		2484
2850	/* This is copied from get_ob_key_link() above -	2485	#if 0
2851	* only 4 lines, and saves the function call overhead.	2486	// remove the "Close old_container" object.
		2487	if (object *closer = old_container->inv)
		2488	if (closer->type == CLOSE_CON)
		2489	closer->destroy ();
		2490	#endif
		2491
		2492	// make sure the container is available
		2493	esrv_send_item (this, old_container);
		2494
		2495	old_container->flag [FLAG_APPLIED] = false;
		2496	container = 0;
		2497
		2498	// client needs item update to make it work, client bug requires this to be separate
		2499	esrv_update_item (UPD_FLAGS, this, old_container);
		2500
		2501	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", old_container->query_name ());
		2502	play_sound (sound_find ("chest_close"));
		2503	}
		2504
		2505	if (new_container)
		2506	{
		2507	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2508	return;
		2509
		2510	// TODO: this does not seem to serve any purpose anymore?
		2511	#if 0
		2512	// insert the "Close Container" object.
		2513	if (archetype *closer = new_container->other_arch)
		2514	{
		2515	object *closer = arch_to_object (new_container->other_arch);
		2516	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2517	new_container->insert (closer);
		2518	}
		2519	#endif
		2520
		2521	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", new_container->query_name ());
		2522
		2523	// make sure the container is available, client bug requires this to be separate
		2524	esrv_send_item (this, new_container);
		2525
		2526	new_container->flag [FLAG_APPLIED] = true;
		2527	container = new_container;
		2528
		2529	// client needs flag change
		2530	esrv_update_item (UPD_FLAGS, this, new_container);
		2531	esrv_send_inventory (this, new_container);
		2532	play_sound (sound_find ("chest_open"));
		2533	}
		2534	// else if (!old_container->env && contr && contr->ns)
		2535	// contr->ns->floorbox_reset ();
		2536	}
		2537
		2538	object *
		2539	object::force_find (shstr_tmp name)
		2540	{
		2541	/* cycle through his inventory to look for the MARK we want to
		2542	* place
2852	*/	2543	*/
2853	for (link = op->key_values; link != NULL; link = link->next)	2544	for (object *tmp = inv; tmp; tmp = tmp->below)
2854	{	2545	if (tmp->type == FORCE && tmp->slaying == name)
2855	if (link->key == canonical_key)	2546	return splay (tmp);
2856	{	2547
2857	return link->value;
2858	}
2859	}
2860	return NULL;	2548	return 0;
2861	}	2549	}
2862		2550
2863		2551	object *
2864	/*	2552	object::force_add (shstr_tmp 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	{	2553	{
2877	key_value *	2554	if (object *force = force_find (name))
2878	field = NULL, *last = NULL;	2555	force->destroy ();
2879		2556
2880	for (field = op->key_values; field != NULL; field = field->next)	2557	object *force = get_archetype (FORCE_NAME);
2881	{
2882	if (field->key != canonical_key)
2883	{
2884	last = field;
2885	continue;
2886	}
2887		2558
2888	if (value)	2559	force->slaying = name;
2889	field->value = value;	2560	force->stats.food = 1;
2890	else	2561	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		2562
2906	delete	2563	force->set_speed (duration ? 1.f / duration : 0.f);
2907	field;	2564	force->flag [FLAG_IS_USED_UP] = true;
2908	}	2565	force->flag [FLAG_APPLIED] = true;
2909	}
2910	return TRUE;
2911	}
2912	/* IF we get here, key doesn't exist */
2913		2566
2914	/* No field, we'll have to add it. */	2567	return insert (force);
		2568	}
2915		2569
2916	if (!add_key)	2570	void
2917	{	2571	object::play_sound (faceidx sound) const
2918	return FALSE;	2572	{
2919	}	2573	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;	2574	return;
2928		2575
2929	field = new key_value;	2576	if (is_on_map ())
2930		2577	map->play_sound (sound, x, y);
2931	field->key = canonical_key;	2578	else if (object *pl = in_player ())
2932	field->value = value;	2579	pl->contr->play_sound (sound);
2933	/* Usual prepend-addition. */
2934	field->next = op->key_values;
2935	op->key_values = field;
2936
2937	return TRUE;
2938	}	2580	}
2939		2581
2940	/*	2582	void
2941	* Updates the key in op to value.	2583	object::say_msg (const char *msg) const
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	{	2584	{
2952	shstr	2585	if (is_on_map ())
2953	key_ (key);	2586	map->say_msg (msg, x, y);
2954		2587	else if (object *pl = in_player ())
2955	return set_ob_key_value_s (op, key_, value, add_key);	2588	pl->contr->play_sound (sound);
2956	}	2589	}
		2590
		2591	void
		2592	object::make_noise ()
		2593	{
		2594	// we do not model noise in the map, so instead put
		2595	// a temporary light into the noise source
		2596	// could use the map instead, but that's less reliable for our
		2597	// goal, which is to make invisibility a bit harder to exploit
		2598
		2599	// currently only works sensibly for players
		2600	if (!is_player ())
		2601	return;
		2602
		2603	// find old force, or create new one
		2604	object *force = force_find (shstr_noise_force);
		2605
		2606	if (force)
		2607	force->speed_left = -1.f; // patch old speed up
		2608	else
		2609	{
		2610	force = archetype::get (shstr_noise_force);
		2611
		2612	force->slaying = shstr_noise_force;
		2613	force->stats.food = 1;
		2614	force->speed_left = -1.f;
		2615
		2616	force->set_speed (1.f / 4.f);
		2617	force->flag [FLAG_IS_USED_UP] = true;
		2618	force->flag [FLAG_APPLIED] = true;
		2619
		2620	insert (force);
		2621	}
		2622	}
		2623

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