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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 1.224 by root, Fri May 2 20:16:24 2008 UTC

1
2	/*	1	/*
3	* static char *rcsid_object_c =	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
4	* "$Id: object.C,v 1.25 2006/09/11 01:16:20 root Exp $";	3	*
5	*/	4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
6
7	/*
8	CrossFire, A Multiplayer game for X-windows
9
10	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
11	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
12		7	*
13	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
14	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
15	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
16	(at your option) any later version.	11	* (at your option) any later version.
17		12	*
18	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
19	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
20	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21	GNU General Public License for more details.	16	* GNU General Public License for more details.
22		17	*
23	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
24	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
25	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
26		21	* The authors can be reached via e-mail to <support@deliantra.net>
27	The authors can be reached via e-mail at crossfire-devel@real-time.com
28	*/	22	*/
29		23
30	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
31	sub/add_weight will transcend the environment updating the carrying
32	variable. */
33	#include <global.h>	24	#include <global.h>
34	#ifndef WIN32 /* ---win32 exclude headers */
35	# include <stdio.h>	25	#include <stdio.h>
36	# include <sys/types.h>	26	#include <sys/types.h>
37	# include <sys/uio.h>	27	#include <sys/uio.h>
38	#endif /* win32 */
39	#include <object.h>	28	#include <object.h>
40	#include <funcpoint.h>	29	#include <sproto.h>
41	#include <skills.h>
42	#include <loader.h>	30	#include <loader.h>
43	int nrofallocobjects = 0;
44		31
45	object *objects; /* Pointer to the list of used objects */	32	#include <bitset>
46	object *active_objects; /* List of active objects that need to be processed */
47		33
48	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,	34	UUID UUID::cur;
		35	static uint64_t seq_next_save;
		36	static const uint64 UUID_GAP = 1<<19;
		37
		38	objectvec objects;
		39	activevec actives;
		40
		41	short freearr_x[SIZEOFFREE] = {
		42	0,
		43	0, 1, 1, 1, 0, -1, -1, -1,
		44	0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
49	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1	45	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
50	};	46	};
51	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,	47	short freearr_y[SIZEOFFREE] = {
		48	0,
		49	-1, -1, 0, 1, 1, 1, 0, -1,
		50	-2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
52	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3	51	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
53	};	52	};
54	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,	53	int maxfree[SIZEOFFREE] = {
		54	0,
		55	9, 10, 13, 14, 17, 18, 21, 22,
		56	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
55	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49	57	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
56	};	58	};
57	int freedir[SIZEOFFREE] = {	59	int freedir[SIZEOFFREE] = {
58	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,	60	0,
		61	1, 2, 3, 4, 5, 6, 7, 8,
		62	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
59	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8	63	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
60	};	64	};
61		65
		66	static void
		67	write_uuid (uval64 skip, bool sync)
		68	{
		69	CALL_BEGIN (2);
		70	CALL_ARG_SV (newSVval64 (skip));
		71	CALL_ARG_SV (boolSV (sync));
		72	CALL_CALL ("cf::write_uuid", G_DISCARD);
		73	CALL_END;
		74	}
		75
		76	static void
		77	read_uuid (void)
		78	{
		79	char filename[MAX_BUF];
		80
		81	sprintf (filename, "%s/uuid", settings.localdir);
		82
		83	seq_next_save = 0;
		84
		85	FILE *fp;
		86
		87	if (!(fp = fopen (filename, "r")))
		88	{
		89	if (errno == ENOENT)
		90	{
		91	LOG (llevInfo, "RESET uid to 1\n");
		92	UUID::cur.seq = 0;
		93	write_uuid (UUID_GAP, true);
		94	return;
		95	}
		96
		97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		98	_exit (1);
		99	}
		100
		101	UUID::BUF buf;
		102	buf[0] = 0;
		103	fgets (buf, sizeof (buf), fp);
		104
		105	if (!UUID::cur.parse (buf))
		106	{
		107	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
		108	_exit (1);
		109	}
		110
		111	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
		112
		113	write_uuid (UUID_GAP, true);
		114	fclose (fp);
		115	}
		116
		117	UUID
		118	UUID::gen ()
		119	{
		120	UUID uid;
		121
		122	uid.seq = ++cur.seq;
		123
		124	if (expect_false (cur.seq >= seq_next_save))
		125	{
		126	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		127	write_uuid (UUID_GAP, false);
		128	}
		129
		130
		131	return uid;
		132	}
		133
		134	void
		135	UUID::init ()
		136	{
		137	read_uuid ();
		138	}
		139
62	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	140	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
63	static int	141	static bool
64	compare_ob_value_lists_one (const object *wants, const object *has)	142	compare_ob_value_lists_one (const object *wants, const object *has)
65	{	143	{
66	key_value *wants_field;	144	key_value *wants_field;
67		145
68	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	146	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
69	* objects with lists are rare, and lists stay short. If not, use a	147	* objects with lists are rare, and lists stay short. If not, use a
70	* different structure or at least keep the lists sorted...	148	* different structure or at least keep the lists sorted...
71	*/	149	*/
72		150
73	/* For each field in wants, */	151	/* For each field in wants, */
74	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	152	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
75	{	153	{
76	key_value *has_field;	154	key_value *has_field;
77		155
78	/* Look for a field in has with the same key. */	156	/* Look for a field in has with the same key. */
79	has_field = get_ob_key_link (has, wants_field->key);	157	has_field = get_ob_key_link (has, wants_field->key);
80		158
81	if (has_field == NULL)	159	if (!has_field)
82	{
83	/* No field with that name. */	160	return 0; /* No field with that name. */
84	return FALSE;
85	}
86		161
87	/* Found the matching field. */	162	/* Found the matching field. */
88	if (has_field->value != wants_field->value)	163	if (has_field->value != wants_field->value)
89	{
90	/* Values don't match, so this half of the comparison is false. */	164	return 0; /* Values don't match, so this half of the comparison is false. */
91	return FALSE;
92	}
93		165
94	/* If we get here, we found a match. Now for the next field in wants. */	166	/* If we get here, we found a match. Now for the next field in wants. */
95	}	167	}
96		168
97	/* If we get here, every field in wants has a matching field in has. */	169	/* If we get here, every field in wants has a matching field in has. */
98	return TRUE;	170	return 1;
99	}	171	}
100		172
101	/* Returns TRUE if ob1 has the same key_values as ob2. */	173	/* Returns TRUE if ob1 has the same key_values as ob2. */
102	static int	174	static bool
103	compare_ob_value_lists (const object *ob1, const object *ob2)	175	compare_ob_value_lists (const object *ob1, const object *ob2)
104	{	176	{
105	/* However, there may be fields in has which aren't partnered in wants,	177	/* However, there may be fields in has which aren't partnered in wants,
106	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
107	*/	179	*/
…		…
113	*	185	*
114	* Note that this function appears a lot longer than the macro it	186	* Note that this function appears a lot longer than the macro it
115	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
116	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
117	*	189	*
118	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
119	*	191	*
120	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
121	* check weight	193	* check weight
122	*/	194	*/
123
124	bool object::can_merge (object *ob1, object *ob2)	195	bool object::can_merge_slow (object *ob1, object *ob2)
125	{	196	{
126	/* A couple quicksanity checks */	197	/* A couple quicksanity checks */
127	if ((ob1 == ob2) || (ob1->type != ob2->type))	198	if (ob1 == ob2
		199	|| ob1->type != ob2->type
		200	|| ob1->speed != ob2->speed
		201	|| ob1->value != ob2->value
		202	|| ob1->name != ob2->name)
128	return 0;	203	return 0;
129		204
130	if (ob1->speed != ob2->speed)	205	/* Do not merge objects if nrof would overflow. First part checks
		206	* for unsigned overflow (2c), second part checks whether the result
		207	* would fit into a 32 bit signed int, which is often used to hold
		208	* nrof values.
		209	*/
		210	if (~ob1->nrof < ob2->nrof || ob1->nrof + ob2->nrof > (1UL << 31))
131	return 0;	211	return 0;
132		212
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.	213	/* 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	214	* 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	215	* 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	216	* are not equal - just if it has been identified, the been_applied
144	* flags lose any meaning.	217	* flags lose any meaning.
145	*/	218	*/
146	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	219	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
147	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	220	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
148		221
149	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	222	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
150	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	223	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
151		224
152		225	if (ob1->arch->name != ob2->arch->name
153	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
154	* being locked in inventory should prevent merging.
155	* 0x4 in flags3 is CLIENT_SENT
156	*/
157	if ((ob1->arch != ob2->arch) ||
158	(ob1->flags[0] != ob2->flags[0]) ||
159	(ob1->flags[1] != ob2->flags[1]) ||
160	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
161	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
162	(ob1->name != ob2->name) ||	226	|| ob1->name != ob2->name
163	(ob1->title != ob2->title) ||	227	|| ob1->title != ob2->title
164	(ob1->msg != ob2->msg) ||	228	|| ob1->msg != ob2->msg
165	(ob1->weight != ob2->weight) ||	229	|| 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) ||	230	|| ob1->attacktype != ob2->attacktype
169	(ob1->magic != ob2->magic) ||	231	|| ob1->magic != ob2->magic
170	(ob1->slaying != ob2->slaying) ||	232	|| ob1->slaying != ob2->slaying
171	(ob1->skill != ob2->skill) ||	233	|| ob1->skill != ob2->skill
172	(ob1->value != ob2->value) ||	234	|| ob1->value != ob2->value
173	(ob1->animation_id != ob2->animation_id) ||	235	|| ob1->animation_id != ob2->animation_id
174	(ob1->client_type != ob2->client_type) ||	236	|| ob1->client_type != ob2->client_type
175	(ob1->materialname != ob2->materialname) ||	237	|| ob1->materialname != ob2->materialname
176	(ob1->lore != ob2->lore) ||	238	|| ob1->lore != ob2->lore
177	(ob1->subtype != ob2->subtype) ||	239	|| ob1->subtype != ob2->subtype
178	(ob1->move_type != ob2->move_type) ||	240	|| ob1->move_type != ob2->move_type
179	(ob1->move_block != ob2->move_block) ||	241	|| ob1->move_block != ob2->move_block
180	(ob1->move_allow != ob2->move_allow) ||	242	|| ob1->move_allow != ob2->move_allow
181	(ob1->move_on != ob2->move_on) ||	243	|| 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))	244	|| ob1->move_off != ob2->move_off
		245	|| ob1->move_slow != ob2->move_slow
		246	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		247	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		248	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
183	return 0;	249	return 0;
184		250
		251	if ((ob1->flag ^ ob2->flag)
		252	.reset (FLAG_INV_LOCKED)
		253	.reset (FLAG_CLIENT_SENT)
		254	.reset (FLAG_REMOVED)
		255	.any ())
		256	return 0;
		257
185	/* This is really a spellbook check - really, we should	258	/* This is really a spellbook check - we should in general
186	* check all objects in the inventory.	259	* not merge objects with real inventories, as splitting them
		260	* is hard.
187	*/	261	*/
188	if (ob1->inv || ob2->inv)	262	if (ob1->inv || ob2->inv)
189	{	263	{
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))	264	if (!(ob1->inv && ob2->inv))
196	return 0;	265	return 0; /* inventories differ in length */
		266
		267	if (ob1->inv->below || ob2->inv->below)
		268	return 0; /* more than one object in inv */
		269
		270	if (!object::can_merge (ob1->inv, ob2->inv))
		271	return 0; /* inventory objects differ */
197		272
198	/* inventory ok - still need to check rest of this object to see	273	/* inventory ok - still need to check rest of this object to see
199	* if it is valid.	274	* if it is valid.
200	*/	275	*/
201	}	276	}
…		…
209		284
210	/* Note sure why the following is the case - either the object has to	285	/* 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	286	* be animated or have a very low speed. Is this an attempted monster
212	* check?	287	* check?
213	*/	288	*/
214	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	289	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
215	return 0;	290	return 0;
216		291
217	switch (ob1->type)	292	switch (ob1->type)
218	{	293	{
219	case SCROLL:	294	case SCROLL:
220	if (ob1->level != ob2->level)	295	if (ob1->level != ob2->level)
221	return 0;	296	return 0;
222	break;	297	break;
223	}	298	}
224		299
225	if (ob1->key_values != NULL || ob2->key_values != NULL)	300	if (ob1->key_values || ob2->key_values)
226	{	301	{
227	/* At least one of these has key_values. */	302	/* At least one of these has key_values. */
228	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	303	if ((!ob1->key_values) != (!ob2->key_values))
229	/* One has fields, but the other one doesn't. */	304	return 0; /* One has fields, but the other one doesn't. */
		305
		306	if (!compare_ob_value_lists (ob1, ob2))
230	return 0;	307	return 0;
231	else if (!compare_ob_value_lists (ob1, ob2))
232	return 0;
233	}	308	}
234		309
235	//TODO: generate an event or call into perl for additional checks
236	if (ob1->self || ob2->self)	310	if (ob1->self || ob2->self)
237	{	311	{
238	ob1->optimise ();	312	ob1->optimise ();
239	ob2->optimise ();	313	ob2->optimise ();
240		314
241	if (ob1->self || ob2->self)	315	if (ob1->self || ob2->self)
		316	{
		317	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		318	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		319
		320	if (k1 != k2)
242	return 0;	321	return 0;
		322
		323	if (k1 == 0)
		324	return 1;
		325
		326	if (!cfperl_can_merge (ob1, ob2))
		327	return 0;
		328	}
243	}	329	}
244		330
245	/* Everything passes, must be OK. */	331	/* Everything passes, must be OK. */
246	return 1;	332	return 1;
247	}	333	}
248		334
		335	// find player who can see this object
		336	object *
		337	object::visible_to () const
		338	{
		339	if (client_visible () && !flag [FLAG_REMOVED])
		340	{
		341	// see if we are in a container of sorts
		342	if (env)
		343	{
		344	// the player inventory itself is always visible
		345	if (env->type == PLAYER)
		346	return env;
		347
		348	// else a player could have our env open
		349	object *envest = env->outer_env ();
		350
		351	// the player itself is always on a map, so we will find him here
		352	// even if our inv is in a player.
		353	if (envest->is_on_map ())
		354	if (object *pl = envest->ms ().player ())
		355	if (pl->container == env)
		356	return pl;
		357	}
		358	else
		359	{
		360	// maybe there is a player standing on the same mapspace
		361	// this will catch the case where "this" is a player
		362	if (object *pl = ms ().player ())
		363	if (!pl->container || this == pl->container)
		364	return pl;
		365	}
		366	}
		367
		368	return 0;
		369	}
		370
		371	// adjust weight per container type ("of holding")
		372	static sint32
		373	weight_adjust (object *op, sint32 weight)
		374	{
		375	return op->type == CONTAINER
		376	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		377	: weight;
		378	}
		379
249	/*	380	/*
		381	* adjust_weight(object, weight) adds the specified weight to an object,
		382	* and also updates how much the environment(s) is/are carrying.
		383	*/
		384	static void
		385	adjust_weight (object *op, sint32 weight)
		386	{
		387	while (op)
		388	{
		389	weight = weight_adjust (op, weight);
		390
		391	if (!weight)
		392	return;
		393
		394	op->carrying += weight;
		395
		396	if (object *pl = op->visible_to ())
		397	if (pl != op) // player is handled lazily
		398	esrv_update_item (UPD_WEIGHT, pl, op);
		399
		400	op = op->env;
		401	}
		402	}
		403
		404	/*
250	* sum_weight() is a recursive function which calculates the weight	405	* this is a recursive function which calculates the weight
251	* an object is carrying. It goes through in figures out how much	406	* an object is carrying. It goes through op and figures out how much
252	* containers are carrying, and sums it up.	407	* containers are carrying, and sums it up.
253	*/	408	*/
254	signed long
255	sum_weight (object *op)
256	{
257	signed long sum;
258	object *inv;
259
260	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
261	{
262	if (inv->inv)
263	sum_weight (inv);
264	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
265	}
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;
270	return sum;
271	}
272
273	/**
274	* Return the outermost environment object for a given object.
275	*/
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	409	void
307	dump_object2 (object *op)	410	object::update_weight ()
308	{	411	{
309	errmsg[0] = 0;	412	sint32 sum = 0;
310	return;
311	//TODO//D#d#
312	#if 0
313	char *cp;
314		413
315	/* object *tmp;*/	414	for (object *op = inv; op; op = op->below)
316
317	if (op->arch != NULL)
318	{
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	}	415	{
337	else	416	if (op->inv)
		417	op->update_weight ();
		418
		419	sum += op->total_weight ();
338	{	420	}
339	strcat (errmsg, "Object ");	421
340	if (op->name == NULL)	422	sum = weight_adjust (this, sum);
341	strcat (errmsg, "(null)");	423
342	else	424	if (sum != carrying)
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	}	425	{
353	#endif	426	carrying = sum;
354	}
355		427
356	/*	428	if (object *pl = visible_to ())
357	* Dumps an object. Returns output in the static global errmsg array.	429	if (pl != this) // player is handled lazily
358	*/	430	esrv_update_item (UPD_WEIGHT, pl, this);
		431	}
		432	}
359		433
360	void	434	/*
		435	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
		436	*/
		437	char *
361	dump_object (object *op)	438	dump_object (object *op)
362	{	439	{
363	if (op == NULL)	440	if (!op)
364	{	441	return strdup ("[NULLOBJ]");
365	strcpy (errmsg, "[NULL pointer]");
366	return;
367	}
368	errmsg[0] = '\0';
369	dump_object2 (op);
370	}
371		442
372	void	443	object_freezer freezer;
373	dump_all_objects (void)	444	op->write (freezer);
374	{	445	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	}	446	}
383		447
384	/*	448	/*
385	* get_nearest_part(multi-object, object 2) returns the part of the	449	* get_nearest_part(multi-object, object 2) returns the part of the
386	* multi-object 1 which is closest to the second object.	450	* multi-object 1 which is closest to the second object.
387	* If it's not a multi-object, it is returned.	451	* If it's not a multi-object, it is returned.
388	*/	452	*/
389
390	object *	453	object *
391	get_nearest_part (object *op, const object *pl)	454	get_nearest_part (object *op, const object *pl)
392	{	455	{
393	object *tmp, *closest;	456	object *tmp, *closest;
394	int last_dist, i;	457	int last_dist, i;
395		458
396	if (op->more == NULL)	459	if (!op->more)
397	return op;	460	return op;
		461
398	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	462	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		463	tmp;
		464	tmp = tmp->more)
399	if ((i = distance (tmp, pl)) < last_dist)	465	if ((i = distance (tmp, pl)) < last_dist)
400	closest = tmp, last_dist = i;	466	closest = tmp, last_dist = i;
		467
401	return closest;	468	return closest;
402	}	469	}
403		470
404	/*	471	/*
405	* Returns the object which has the count-variable equal to the argument.	472	* Returns the object which has the count-variable equal to the argument.
		473	* VERRRY slow.
406	*/	474	*/
407
408	object *	475	object *
409	find_object (tag_t i)	476	find_object (tag_t i)
410	{	477	{
411	object *op;	478	for_all_objects (op)
412
413	for (op = objects; op != NULL; op = op->next)
414	if (op->count == i)	479	if (op->count == i)
415	break;
416	return op;	480	return op;
		481
		482	return 0;
417	}	483	}
418		484
419	/*	485	/*
420	* Returns the first object which has a name equal to the argument.	486	* Returns the first object which has a name equal to the argument.
421	* Used only by the patch command, but not all that useful.	487	* Used only by the patch command, but not all that useful.
422	* Enables features like "patch <name-of-other-player> food 999"	488	* Enables features like "patch <name-of-other-player> food 999"
423	*/	489	*/
424
425	object *	490	object *
426	find_object_name (const char *str)	491	find_object_name (const char *str)
427	{	492	{
428	const char *name = shstr::find (str);	493	shstr_cmp str_ (str);
429	object *op;	494	object *op;
430		495
431	for (op = objects; op != NULL; op = op->next)	496	for_all_objects (op)
432	if (&op->name == name)	497	if (op->name == str_)
433	break;	498	break;
434		499
435	return op;	500	return op;
436	}
437
438	void
439	free_all_object_data ()
440	{
441	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
442	}
443
444	/*
445	* Returns the object which this object marks as being the owner.
446	* A id-scheme is used to avoid pointing to objects which have been
447	* freed and are now reused. If this is detected, the owner is
448	* set to NULL, and NULL is returned.
449	* Changed 2004-02-12 - if the player is setting at the play again
450	* prompt, he is removed, and we don't want to treat him as an owner of
451	* anything, so check removed flag. I don't expect that this should break
452	* anything - once an object is removed, it is basically dead anyways.
453	*/
454
455	object *
456	get_owner (object *op)
457	{
458	if (op->owner == NULL)
459	return NULL;
460
461	if (!QUERY_FLAG (op->owner, FLAG_FREED) && !QUERY_FLAG (op->owner, FLAG_REMOVED) && op->owner->count == op->ownercount)
462	return op->owner;
463
464	op->owner = NULL;
465	op->ownercount = 0;
466	return NULL;
467	}
468
469	void
470	clear_owner (object *op)
471	{
472	if (!op)
473	return;
474
475	if (op->owner && op->ownercount == op->owner->count)
476	op->owner->refcount--;
477
478	op->owner = NULL;
479	op->ownercount = 0;
480	}	501	}
481		502
482	/*	503	/*
483	* Sets the owner and sets the skill and exp pointers to owner's current	504	* Sets the owner and sets the skill and exp pointers to owner's current
484	* skill and experience objects.	505	* skill and experience objects.
		506	* ACTUALLY NO! investigate! TODO
485	*/	507	*/
486	void	508	void
487	set_owner (object *op, object *owner)	509	object::set_owner (object *owner)
488	{	510	{
489	if (owner == NULL || op == NULL)	511	// allow objects which own objects
490	return;	512	if (owner)
491		513	while (owner->owner)
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	*/
499	while (owner->owner && owner != owner->owner && owner->ownercount == owner->owner->count)
500	owner = owner->owner;	514	owner = owner->owner;
501		515
502	/* IF the owner still has an owner, we did not resolve to a final owner.	516	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	{	517	{
531	/* players don't have owners - they own themselves. Update	518	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;	519	return;
		520	}
		521
		522	this->owner = owner;
		523	}
		524
		525	int
		526	object::slottype () const
		527	{
		528	if (type == SKILL)
538	}	529	{
		530	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		531	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		532	}
		533	else
		534	{
		535	if (slot [body_combat].info) return slot_combat;
		536	if (slot [body_range ].info) return slot_ranged;
		537	}
		538
		539	return slot_none;
		540	}
539		541
540	set_owner (op, owner);	542	bool
		543	object::change_weapon (object *ob)
		544	{
		545	if (current_weapon == ob)
		546	return true;
		547
		548	if (chosen_skill)
		549	chosen_skill->flag [FLAG_APPLIED] = false;
		550
		551	current_weapon = ob;
		552	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		553
		554	if (chosen_skill)
		555	chosen_skill->flag [FLAG_APPLIED] = true;
		556
		557	update_stats ();
		558
		559	if (ob)
		560	{
		561	// now check wether any body locations became invalid, in which case
		562	// we cannot apply the weapon at the moment.
		563	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		564	if (slot[i].used < 0)
		565	{
		566	current_weapon = chosen_skill = 0;
		567	update_stats ();
		568
		569	new_draw_info_format (NDI_UNIQUE, 0, this,
		570	"You try to balance all your items at once, "
		571	"but the %s is just too much for your body. "
		572	"[You need to unapply some items first.]", &ob->name);
		573	return false;
		574	}
		575
		576	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		577	}
		578	else
		579	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		580
		581	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		582	{
		583	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		584	&name, ob->debug_desc ());
		585	return false;
		586	}
		587
		588	return true;
541	}	589	}
542		590
543	/* Zero the key_values on op, decrementing the shared-string	591	/* Zero the key_values on op, decrementing the shared-string
544	* refcounts and freeing the links.	592	* refcounts and freeing the links.
545	*/	593	*/
546	static void	594	static void
547	free_key_values (object *op)	595	free_key_values (object *op)
548	{	596	{
549	for (key_value *i = op->key_values; i != 0;)	597	for (key_value *i = op->key_values; i; )
550	{	598	{
551	key_value *next = i->next;	599	key_value *next = i->next;
552	delete i;	600	delete i;
553		601
554	i = next;	602	i = next;
555	}	603	}
556		604
557	op->key_values = 0;	605	op->key_values = 0;
558	}	606	}
559		607
560	void object::clear ()	608	object &
		609	object::operator =(const object &src)
561	{	610	{
562	attachable_base::clear ();	611	remove ();
563		612
564	free_key_values (this);	613	*(object_copy *)this = src;
565		614
566	clear_owner (this);	615	flag [FLAG_REMOVED] = true;
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	/*
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,
627	* and then copies the contends of the first object into the second
628	* object, allocating what needs to be allocated. Basically, any
629	* 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
631	* will point at garbage.
632	*/
633
634	void
635	copy_object (object *op2, object *op)
636	{
637	bool is_freed = QUERY_FLAG (op, FLAG_FREED);
638	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);
639
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		616
650	/* Copy over key_values, if any. */	617	/* Copy over key_values, if any. */
651	if (op2->key_values)	618	if (src.key_values)
652	{	619	{
653	key_value *tail = 0;	620	key_value *tail = 0;
654	key_value *i;
655
656	op->key_values = 0;	621	key_values = 0;
657		622
658	for (i = op2->key_values; i; i = i->next)	623	for (key_value *i = src.key_values; i; i = i->next)
659	{	624	{
660	key_value *new_link = new key_value;	625	key_value *new_link = new key_value;
661		626
662	new_link->next = 0;	627	new_link->next = 0;
663	new_link->key = i->key;	628	new_link->key = i->key;
664	new_link->value = i->value;	629	new_link->value = i->value;
665		630
666	/* Try and be clever here, too. */	631	/* Try and be clever here, too. */
667	if (!op->key_values)	632	if (!key_values)
668	{	633	{
669	op->key_values = new_link;	634	key_values = new_link;
670	tail = new_link;	635	tail = new_link;
671	}	636	}
672	else	637	else
673	{	638	{
674	tail->next = new_link;	639	tail->next = new_link;
675	tail = new_link;	640	tail = new_link;
676	}	641	}
677	}	642	}
678	}	643	}
		644	}
679		645
680	update_ob_speed (op);	646	/*
		647	* copy_to first frees everything allocated by the dst object,
		648	* and then copies the contents of itself into the second
		649	* object, allocating what needs to be allocated. Basically, any
		650	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
		651	* if the first object is freed, the pointers in the new object
		652	* will point at garbage.
		653	*/
		654	void
		655	object::copy_to (object *dst)
		656	{
		657	*dst = *this;
		658
		659	if (speed < 0)
		660	dst->speed_left -= rndm ();
		661
		662	dst->set_speed (dst->speed);
		663	}
		664
		665	void
		666	object::instantiate ()
		667	{
		668	if (!uuid.seq) // HACK
		669	uuid = UUID::gen ();
		670
		671	speed_left = -0.1f;
		672	/* copy the body_info to the body_used - this is only really
		673	* need for monsters, but doesn't hurt to do it for everything.
		674	* by doing so, when a monster is created, it has good starting
		675	* values for the body_used info, so when items are created
		676	* for it, they can be properly equipped.
		677	*/
		678	for (int i = NUM_BODY_LOCATIONS; i--; )
		679	slot[i].used = slot[i].info;
		680
		681	attachable::instantiate ();
		682	}
		683
		684	object *
		685	object::clone ()
		686	{
		687	object *neu = create ();
		688	copy_to (neu);
		689	return neu;
681	}	690	}
682		691
683	/*	692	/*
684	* If an object with the IS_TURNABLE() flag needs to be turned due	693	* 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	694	* 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.	695	* be called to update the face variable, _and_ how it looks on the map.
687	*/	696	*/
688
689	void	697	void
690	update_turn_face (object *op)	698	update_turn_face (object *op)
691	{	699	{
692	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	700	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
693	return;	701	return;
		702
694	SET_ANIMATION (op, op->direction);	703	SET_ANIMATION (op, op->direction);
695	update_object (op, UP_OBJ_FACE);	704	update_object (op, UP_OBJ_FACE);
696	}	705	}
697		706
698	/*	707	/*
699	* Updates the speed of an object. If the speed changes from 0 to another	708	* 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.	709	* 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.	710	* This function needs to be called whenever the speed of an object changes.
702	*/	711	*/
703
704	void	712	void
705	update_ob_speed (object *op)	713	object::set_speed (float speed)
706	{	714	{
707	extern int arch_init;	715	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	{	716	{
715	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	717	LOG (llevError, "Object %s is freed but has speed.\n", &name);
716	#ifdef MANY_CORES
717	abort ();
718	#else
719	op->speed = 0;	718	speed = 0;
720	#endif
721	}
722	if (arch_init)
723	{	719	}
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		720
732	/* process_events() expects us to insert the object at the beginning	721	this->speed = speed;
733	* of the list. */	722
734	op->active_next = active_objects;	723	if (has_active_speed ())
735	if (op->active_next != NULL)	724	activate ();
736	op->active_next->active_prev = op;
737	active_objects = op;
738	}
739	else	725	else
740	{	726	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	}	727	}
761		728
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	/*	729	/*
794	* update_object() updates the array which represents the map.	730	* update_object() updates the the map.
795	* It takes into account invisible objects (and represent squares covered	731	* It takes into account invisible objects (and represent squares covered
796	* by invisible objects by whatever is below them (unless it's another	732	* by invisible objects by whatever is below them (unless it's another
797	* invisible object, etc...)	733	* invisible object, etc...)
798	* If the object being updated is beneath a player, the look-window	734	* 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	735	* of that player is updated (this might be a suboptimal way of
800	* updating that window, though, since update_object() is called _often_)	736	* updating that window, though, since update_object() is called _often_)
801	*	737	*
802	* action is a hint of what the caller believes need to be done.	738	* 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:	739	* current action are:
808	* UP_OBJ_INSERT: op was inserted	740	* UP_OBJ_INSERT: op was inserted
809	* UP_OBJ_REMOVE: op was removed	741	* UP_OBJ_REMOVE: op was removed
810	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	742	* 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.	743	* as that is easier than trying to look at what may have changed.
812	* UP_OBJ_FACE: only the objects face has changed.	744	* UP_OBJ_FACE: only the objects face has changed.
813	*/	745	*/
814
815	void	746	void
816	update_object (object *op, int action)	747	update_object (object *op, int action)
817	{	748	{
818	int update_now = 0, flags;	749	if (!op)
819	MoveType move_on, move_off, move_block, move_slow;
820
821	if (op == NULL)
822	{	750	{
823	/* this should never happen */	751	/* this should never happen */
824	LOG (llevDebug, "update_object() called for NULL object.\n");	752	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
825	return;	753	return;
826	}	754	}
827		755
828	if (op->env != NULL)	756	if (!op->is_on_map ())
829	{	757	{
830	/* Animation is currently handled by client, so nothing	758	/* Animation is currently handled by client, so nothing
831	* to do in this case.	759	* to do in this case.
832	*/	760	*/
833	return;	761	return;
834	}	762	}
835		763
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 */	764	/* 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))	765	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
844	{	766	{
845	LOG (llevError, "update_object() called for object out of map!\n");	767	LOG (llevError, "update_object() called for object out of map!\n");
846	#ifdef MANY_CORES	768	#ifdef MANY_CORES
847	abort ();	769	abort ();
848	#endif	770	#endif
849	return;	771	return;
850	}	772	}
851		773
852	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	774	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		775
		776	if (!(m.flags_ & P_UPTODATE))
		777	/* nop */;
859	if (action == UP_OBJ_INSERT)	778	else if (action == UP_OBJ_INSERT)
860	{	779	{
		780	// this is likely overkill, TODO: revisit (schmorp)
861	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	781	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))	782	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
865	update_now = 1;	783	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
866		784	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		785	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
867	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	786	|| (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)	787	|| (m.move_on | op->move_on ) != m.move_on
877	update_now = 1;
878
879	if ((move_off | op->move_off) != move_off)	788	|| (m.move_off | op->move_off ) != m.move_off
880	update_now = 1;	789	|| (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	790	/* This isn't perfect, but I don't expect a lot of objects to
883	* to have move_allow right now.	791	* to have move_allow right now.
884	*/	792	*/
885	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	793	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
886	update_now = 1;	794	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
887		795	m.flags_ = 0;
888	if ((move_slow | op->move_slow) != move_slow)
889	update_now = 1;
890	}	796	}
891	/* if the object is being removed, we can't make intelligent	797	/* if the object is being removed, we can't make intelligent
892	* decisions, because remove_ob can't really pass the object	798	* decisions, because remove_ob can't really pass the object
893	* that is being removed.	799	* that is being removed.
894	*/	800	*/
895	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	801	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
896	{	802	m.flags_ = 0;
897	update_now = 1;
898	}
899	else if (action == UP_OBJ_FACE)	803	else if (action == UP_OBJ_FACE)
900	{
901	/* Nothing to do for that case */	804	/* Nothing to do for that case */ ;
902	}
903	else	805	else
904	{
905	LOG (llevError, "update_object called with invalid action: %d\n", action);	806	LOG (llevError, "update_object called with invalid action: %d\n", action);
906	}
907		807
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)	808	if (op->more)
915	update_object (op->more, action);	809	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	}	810	}
932		811
933	object::object ()	812	object::object ()
934	{	813	{
935	SET_FLAG (this, FLAG_REMOVED);	814	SET_FLAG (this, FLAG_REMOVED);
936		815
937	expmul = 1.0;	816	expmul = 1.0;
938	face = blank_face;	817	face = blank_face;
939	attacked_by_count = -1;
940	}	818	}
941		819
942	object::~object ()	820	object::~object ()
943	{	821	{
		822	unlink ();
		823
944	free_key_values (this);	824	free_key_values (this);
945	}	825	}
946		826
		827	static int object_count;
		828
947	void object::link ()	829	void object::link ()
948	{	830	{
		831	assert (!index);//D
		832	uuid = UUID::gen ();
949	count = ++ob_count;	833	count = ++object_count;
950		834
951	prev = 0;	835	refcnt_inc ();
952	next = objects;	836	objects.insert (this);
953
954	if (objects)
955	objects->prev = this;
956
957	objects = this;
958	}	837	}
959		838
960	void object::unlink ()	839	void object::unlink ()
961	{	840	{
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)	841	if (!index)
972	{	842	return;
973	next->prev = prev;	843
974	next = 0;	844	objects.erase (this);
		845	refcnt_dec ();
		846	}
		847
		848	void
		849	object::activate ()
		850	{
		851	/* If already on active list, don't do anything */
		852	if (active)
		853	return;
		854
		855	if (has_active_speed ())
		856	actives.insert (this);
		857	}
		858
		859	void
		860	object::activate_recursive ()
		861	{
		862	activate ();
		863
		864	for (object *op = inv; op; op = op->below)
		865	op->activate_recursive ();
		866	}
		867
		868	/* This function removes object 'op' from the list of active
		869	* objects.
		870	* This should only be used for style maps or other such
		871	* reference maps where you don't want an object that isn't
		872	* in play chewing up cpu time getting processed.
		873	* The reverse of this is to call update_ob_speed, which
		874	* will do the right thing based on the speed of the object.
		875	*/
		876	void
		877	object::deactivate ()
		878	{
		879	/* If not on the active list, nothing needs to be done */
		880	if (!active)
		881	return;
		882
		883	actives.erase (this);
		884	}
		885
		886	void
		887	object::deactivate_recursive ()
		888	{
		889	for (object *op = inv; op; op = op->below)
		890	op->deactivate_recursive ();
		891
		892	deactivate ();
		893	}
		894
		895	void
		896	object::set_flag_inv (int flag, int value)
		897	{
		898	for (object *op = inv; op; op = op->below)
975	}	899	{
		900	op->flag [flag] = value;
		901	op->set_flag_inv (flag, value);
		902	}
		903	}
976		904
977	if (this == objects)	905	/*
978	objects = next;	906	* Remove and free all objects in the inventory of the given object.
		907	* object.c ?
		908	*/
		909	void
		910	object::destroy_inv (bool drop_to_ground)
		911	{
		912	// need to check first, because the checks below might segfault
		913	// as we might be on an invalid mapspace and crossfire code
		914	// is too buggy to ensure that the inventory is empty.
		915	// corollary: if you create arrows etc. with stuff in its inventory,
		916	// cf will crash below with off-map x and y
		917	if (!inv)
		918	return;
		919
		920	/* Only if the space blocks everything do we not process -
		921	* if some form of movement is allowed, let objects
		922	* drop on that space.
		923	*/
		924	if (!drop_to_ground
		925	|| !map
		926	|| map->in_memory != MAP_ACTIVE
		927	|| map->nodrop
		928	|| ms ().move_block == MOVE_ALL)
		929	{
		930	while (inv)
		931	{
		932	inv->destroy_inv (false);
		933	inv->destroy ();
		934	}
		935	}
		936	else
		937	{ /* Put objects in inventory onto this space */
		938	while (inv)
		939	{
		940	object *op = inv;
		941
		942	if (op->flag [FLAG_STARTEQUIP]
		943	|| op->flag [FLAG_NO_DROP]
		944	|| op->type == RUNE
		945	|| op->type == TRAP
		946	|| op->flag [FLAG_IS_A_TEMPLATE]
		947	|| op->flag [FLAG_DESTROY_ON_DEATH])
		948	op->destroy (true);
		949	else
		950	map->insert (op, x, y);
		951	}
		952	}
979	}	953	}
980		954
981	object *object::create ()	955	object *object::create ()
982	{	956	{
983	object *op;
984
985	if (freed.empty ())
986	op = new object;	957	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 ();	958	op->link ();
996	return op;	959	return op;
997	}	960	}
998		961
999	/*	962	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	{	963	{
1011	if (!QUERY_FLAG (this, FLAG_REMOVED))	964	freed_map ()
1012	{	965	{
1013	LOG (llevDebug, "Free object called with non removed object\n");	966	path = "<freed objects map>";
1014	dump_object (this);	967	name = "/internal/freed_objects_map";
1015	#ifdef MANY_CORES	968	width = 3;
1016	abort ();	969	height = 3;
1017	#endif	970	nodrop = 1;
		971
		972	alloc ();
		973	in_memory = MAP_ACTIVE;
1018	}	974	}
		975	} freed_map; // freed objects are moved here to avoid crashes
1019		976
1020	if (QUERY_FLAG (this, FLAG_FRIENDLY))	977	void
1021	{	978	object::do_destroy ()
1022	LOG (llevMonster, "Warning: tried to free friendly object.\n");	979	{
		980	if (flag [FLAG_IS_LINKED])
		981	remove_button_link (this);
		982
		983	if (flag [FLAG_FRIENDLY])
1023	remove_friendly_object (this);	984	remove_friendly_object (this);
		985
		986	remove ();
		987
		988	attachable::do_destroy ();
		989
		990	deactivate ();
		991	unlink ();
		992
		993	flag [FLAG_FREED] = 1;
		994
		995	// hack to ensure that freed objects still have a valid map
		996	map = &freed_map;
		997	x = 1;
		998	y = 1;
		999
		1000	if (more)
1024	}	1001	{
1025		1002	more->destroy ();
1026	if (QUERY_FLAG (this, FLAG_FREED))	1003	more = 0;
1027	{	1004	}
1028	dump_object (this);	1005
1029	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	1006	head = 0;
		1007
		1008	// clear those pointers that likely might cause circular references
		1009	owner = 0;
		1010	enemy = 0;
		1011	attacked_by = 0;
		1012	current_weapon = 0;
		1013	}
		1014
		1015	void
		1016	object::destroy (bool destroy_inventory)
		1017	{
		1018	if (destroyed ())
		1019	return;
		1020
		1021	if (!is_head () && !head->destroyed ())
		1022	{
		1023	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
		1024	head->destroy (destroy_inventory);
1030	return;	1025	return;
1031	}	1026	}
1032		1027
1033	if (more)	1028	destroy_inv (!destroy_inventory);
1034	{
1035	more->free (free_inventory);
1036	more = 0;
1037	}
1038		1029
1039	if (inv)	1030	if (is_head ())
1040	{	1031	if (sound_destroy)
1041	/* Only if the space blocks everything do we not process -	1032	play_sound (sound_destroy);
1042	* if some form of movement is allowed, let objects	1033	else if (flag [FLAG_MONSTER])
1043	* drop on that space.	1034	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		1035
1050	while (op)	1036	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	}	1037	}
1099		1038
1100	/*	1039	/* 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	1040	* 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	1041	* which it is currently tied to. When this function is done, the
1122	* object will have no environment. If the object previously had an	1042	* object will have no environment. If the object previously had an
1123	* environment, the x and y coordinates will be updated to	1043	* environment, the x and y coordinates will be updated to
1124	* the previous environment.	1044	* the previous environment.
1125	* Beware: This function is called from the editor as well!
1126	*/	1045	*/
1127
1128	void	1046	void
1129	remove_ob (object *op)	1047	object::do_remove ()
1130	{	1048	{
		1049	object *tmp, *last = 0;
1131	object *	1050	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		1051
		1052	if (flag [FLAG_REMOVED])
		1053	return;
1146		1054
1147	if (QUERY_FLAG (op, FLAG_REMOVED))	1055	INVOKE_OBJECT (REMOVE, this);
1148	{
1149	dump_object (op);
1150	LOG (llevError, "Trying to remove removed object.\n%s\n", errmsg);
1151		1056
1152	/* Changed it to always dump core in this case. As has been learned	1057	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		1058
1167	SET_FLAG (op, FLAG_REMOVED);	1059	if (more)
		1060	more->remove ();
1168		1061
1169	/*	1062	/*
1170	* In this case, the object to be removed is in someones	1063	* In this case, the object to be removed is in someones
1171	* inventory.	1064	* inventory.
1172	*/	1065	*/
1173	if (op->env != NULL)	1066	if (env)
1174	{	1067	{
1175	if (op->nrof)	1068	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1176	sub_weight (op->env, op->weight * op->nrof);	1069	if (object *pl = visible_to ())
1177	else	1070	esrv_del_item (pl->contr, count);
1178	sub_weight (op->env, op->weight + op->carrying);	1071	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1072
		1073	adjust_weight (env, -total_weight ());
		1074
		1075	*(above ? &above->below : &env->inv) = below;
		1076
		1077	if (below)
		1078	below->above = above;
		1079
		1080	/* we set up values so that it could be inserted into
		1081	* the map, but we don't actually do that - it is up
		1082	* to the caller to decide what we want to do.
		1083	*/
		1084	map = env->map;
		1085	x = env->x;
		1086	y = env->y;
		1087	above = 0;
		1088	below = 0;
		1089	env = 0;
1179		1090
1180	/* NO_FIX_PLAYER is set when a great many changes are being	1091	/* NO_FIX_PLAYER is set when a great many changes are being
1181	* made to players inventory. If set, avoiding the call	1092	* made to players inventory. If set, avoiding the call
1182	* to save cpu time.	1093	* to save cpu time.
1183	*/	1094	*/
1184	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1095	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1185	fix_player (otmp);	1096	otmp->update_stats ();
		1097	}
		1098	else if (map)
		1099	{
		1100	map->dirty = true;
		1101	mapspace &ms = this->ms ();
1186		1102
1187	if (op->above != NULL)	1103	if (object *pl = ms.player ())
		1104	{
		1105	if (type == PLAYER) // this == pl(!)
		1106	{
		1107	// leaving a spot always closes any open container on the ground
		1108	if (container && !container->env)
		1109	// this causes spurious floorbox updates, but it ensures
		1110	// that the CLOSE event is being sent.
		1111	close_container ();
		1112
		1113	--map->players;
		1114	map->touch ();
		1115	}
		1116	else if (pl->container == this)
		1117	{
		1118	// removing a container should close it
		1119	close_container ();
		1120	}
		1121
		1122	esrv_del_item (pl->contr, count);
		1123	}
		1124
		1125	/* link the object above us */
		1126	if (above)
1188	op->above->below = op->below;	1127	above->below = below;
1189	else	1128	else
1190	op->env->inv = op->below;	1129	ms.top = below; /* we were top, set new top */
1191		1130
1192	if (op->below != NULL)
1193	op->below->above = op->above;
1194
1195	/* we set up values so that it could be inserted into
1196	* the map, but we don't actually do that - it is up
1197	* to the caller to decide what we want to do.
1198	*/
1199	op->x = op->env->x, op->y = op->env->y;
1200	op->map = op->env->map;
1201	op->above = NULL, op->below = NULL;
1202	op->env = NULL;
1203	return;
1204	}
1205
1206	/* If we get here, we are removing it from a map */
1207	if (op->map == NULL)
1208	return;
1209
1210	x = op->x;
1211	y = op->y;
1212	m = get_map_from_coord (op->map, &x, &y);
1213
1214	if (!m)
1215	{
1216	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1217	op->map->path, op->x, op->y);
1218	/* in old days, we used to set x and y to 0 and continue.
1219	* it seems if we get into this case, something is probablye
1220	* screwed up and should be fixed.
1221	*/
1222	abort ();
1223	}
1224	if (op->map != m)
1225	{
1226	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1227	op->map->path, m->path, op->x, op->y, x, y);
1228	}
1229
1230	/* Re did the following section of code - it looks like it had
1231	* lots of logic for things we no longer care about
1232	*/
1233
1234	/* link the object above us */
1235	if (op->above)
1236	op->above->below = op->below;
1237	else
1238	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1239
1240	/* Relink the object below us, if there is one */	1131	/* Relink the object below us, if there is one */
1241	if (op->below)	1132	if (below)
1242	{
1243	op->below->above = op->above;	1133	below->above = above;
1244	}
1245	else	1134	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	{	1135	{
1253	dump_object (op);	1136	/* Nothing below, which means we need to relink map object for this space
		1137	* use translated coordinates in case some oddness with map tiling is
		1138	* evident
		1139	*/
		1140	if (GET_MAP_OB (map, x, y) != this)
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",	1141	LOG (llevError, "remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom? %s\n", debug_desc ());
1255	errmsg);	1142
1256	dump_object (GET_MAP_OB (m, x, y));	1143	ms.bot = above; /* goes on above it. */
1257	LOG (llevError, "%s\n", errmsg);
1258	}	1144	}
1259	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */
1260	}
1261	op->above = NULL;
1262	op->below = NULL;
1263		1145
		1146	above = 0;
		1147	below = 0;
		1148
1264	if (op->map->in_memory == MAP_SAVING)	1149	if (map->in_memory == MAP_SAVING)
1265	return;	1150	return;
1266		1151
1267	tag = op->count;	1152	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		1153
1275	if (tmp->type == PLAYER && tmp != op)	1154	if (object *pl = ms.player ())
1276	{	1155	{
		1156	if (pl->container == this)
1277	/* If a container that the player is currently using somehow gets	1157	/* If a container that the player is currently using somehow gets
1278	* removed (most likely destroyed), update the player view	1158	* removed (most likely destroyed), update the player view
1279	* appropriately.	1159	* appropriately.
		1160	*/
		1161	pl->close_container ();
		1162
		1163	//TODO: the floorbox prev/next might need updating
		1164	esrv_del_item (pl->contr, count);
		1165	}
		1166
		1167	for (tmp = ms.bot; tmp; tmp = tmp->above)
		1168	{
		1169	/* No point updating the players look faces if he is the object
		1170	* being removed.
1280	*/	1171	*/
1281	if (tmp->container == op)	1172
		1173	/* See if object moving off should effect something */
		1174	if (check_walk_off
		1175	&& ((move_type & tmp->move_off)
		1176	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1282	{	1177	{
1283	CLEAR_FLAG (op, FLAG_APPLIED);	1178	move_apply (tmp, this, 0);
1284	tmp->container = NULL;	1179
		1180	if (destroyed ())
		1181	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1285	}	1182	}
1286	tmp->contr->socket.update_look = 1;	1183
		1184	last = tmp;
1287	}	1185	}
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		1186
1292	move_apply (tmp, op, NULL);
1293	if (was_destroyed (op, tag))
1294	{
1295	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name);
1296	}
1297	}
1298
1299	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1300
1301	if (tmp->above == tmp)
1302	tmp->above = NULL;
1303	last = tmp;
1304	}
1305	/* last == NULL of there are no objects on this space */	1187	/* last == NULL if there are no objects on this space */
1306	if (last == NULL)	1188	//TODO: this makes little sense, why only update the topmost object?
1307	{	1189	if (!last)
1308	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1190	map->at (x, y).flags_ = 0;
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	1191	else
1317	update_object (last, UP_OBJ_REMOVE);	1192	update_object (last, UP_OBJ_REMOVE);
1318		1193
1319	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))	1194	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1320	update_all_los (op->map, op->x, op->y);	1195	update_all_los (map, x, y);
1321		1196	}
1322	}	1197	}
1323		1198
1324	/*	1199	/*
1325	* merge_ob(op,top):	1200	* merge_ob(op,top):
1326	*	1201	*
1327	* This function goes through all objects below and including top, and	1202	* This function goes through all objects below and including top, and
1328	* merges op to the first matching object.	1203	* merges op to the first matching object.
1329	* If top is NULL, it is calculated.	1204	* If top is NULL, it is calculated.
1330	* Returns pointer to object if it succeded in the merge, otherwise NULL	1205	* Returns pointer to object if it succeded in the merge, otherwise NULL
1331	*/	1206	*/
1332
1333	object *	1207	object *
1334	merge_ob (object *op, object *top)	1208	merge_ob (object *op, object *top)
1335	{	1209	{
1336	if (!op->nrof)	1210	if (!op->nrof)
1337	return 0;	1211	return 0;
1338	if (top == NULL)	1212
		1213	if (!top)
1339	for (top = op; top != NULL && top->above != NULL; top = top->above);	1214	for (top = op; top && top->above; top = top->above)
		1215	;
		1216
1340	for (; top != NULL; top = top->below)	1217	for (; top; top = top->below)
1341	{	1218	if (object::can_merge (op, top))
1342	if (top == op)
1343	continue;
1344	if (CAN_MERGE (op, top))
1345	{	1219	{
1346	top->nrof += op->nrof;	1220	top->nrof += op->nrof;
1347		1221
1348	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1222	if (object *pl = top->visible_to ())
1349	op->weight = 0; /* Don't want any adjustements now */	1223	esrv_update_item (UPD_NROF, pl, top);
1350	remove_ob (op);	1224
1351	free_object (op);	1225	op->weight = 0; // cancel the addition above
		1226	op->carrying = 0; // must be 0 already
		1227
		1228	op->destroy (1);
		1229
1352	return top;	1230	return top;
1353	}	1231	}
1354	}	1232
1355	return NULL;	1233	return 0;
1356	}	1234	}
1357		1235
		1236	void
		1237	object::expand_tail ()
		1238	{
		1239	if (more)
		1240	return;
		1241
		1242	object *prev = this;
		1243
		1244	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1245	{
		1246	object *op = arch_to_object (at);
		1247
		1248	op->name = name;
		1249	op->name_pl = name_pl;
		1250	op->title = title;
		1251
		1252	op->head = this;
		1253	prev->more = op;
		1254
		1255	prev = op;
		1256	}
		1257	}
		1258
1358	/*	1259	/*
1359	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1260	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1360	* job preparing multi-part monsters	1261	* job preparing multi-part monsters.
1361	*/	1262	*/
1362	object *	1263	object *
1363	insert_ob_in_map_at (object *op, mapstruct *m, object *originator, int flag, int x, int y)	1264	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1364	{	1265	{
1365	object *
1366	tmp;
1367
1368	if (op->head)
1369	op = op->head;
1370	for (tmp = op; tmp; tmp = tmp->more)	1266	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1371	{	1267	{
1372	tmp->x = x + tmp->arch->clone.x;	1268	tmp->x = x + tmp->arch->x;
1373	tmp->y = y + tmp->arch->clone.y;	1269	tmp->y = y + tmp->arch->y;
1374	}	1270	}
		1271
1375	return insert_ob_in_map (op, m, originator, flag);	1272	return insert_ob_in_map (op, m, originator, flag);
1376	}	1273	}
1377		1274
1378	/*	1275	/*
1379	* insert_ob_in_map (op, map, originator, flag):	1276	* insert_ob_in_map (op, map, originator, flag):
…		…
1393	* Return value:	1290	* Return value:
1394	* new object if 'op' was merged with other object	1291	* new object if 'op' was merged with other object
1395	* NULL if 'op' was destroyed	1292	* NULL if 'op' was destroyed
1396	* just 'op' otherwise	1293	* just 'op' otherwise
1397	*/	1294	*/
1398
1399	object *	1295	object *
1400	insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1296	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1401	{	1297	{
1402	object *tmp, *top, *floor = NULL;	1298	assert (!op->flag [FLAG_FREED]);
1403	sint16 x, y;
1404		1299
1405	if (QUERY_FLAG (op, FLAG_FREED))	1300	op->remove ();
1406	{
1407	LOG (llevError, "Trying to insert freed object!\n");
1408	return NULL;
1409	}
1410
1411	if (m == NULL)
1412	{
1413	dump_object (op);
1414	LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg);
1415	return op;
1416	}
1417
1418	if (out_of_map (m, op->x, op->y))
1419	{
1420	dump_object (op);
1421	LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg);
1422	#ifdef MANY_CORES
1423	/* Better to catch this here, as otherwise the next use of this object
1424	* is likely to cause a crash. Better to find out where it is getting
1425	* improperly inserted.
1426	*/
1427	abort ();
1428	#endif
1429	return op;
1430	}
1431
1432	if (!QUERY_FLAG (op, FLAG_REMOVED))
1433	{
1434	dump_object (op);
1435	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg);
1436	return op;
1437	}
1438
1439	if (op->more != NULL)
1440	{
1441	/* The part may be on a different map. */
1442
1443	object *
1444	more = op->more;
1445
1446	/* We really need the caller to normalize coordinates - if
1447	* we set the map, that doesn't work if the location is within
1448	* a map and this is straddling an edge. So only if coordinate
1449	* is clear wrong do we normalize it.
1450	*/
1451	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1452	{
1453	more->map = get_map_from_coord (m, &more->x, &more->y);
1454	}
1455	else if (!more->map)
1456	{
1457	/* For backwards compatibility - when not dealing with tiled maps,
1458	* more->map should always point to the parent.
1459	*/
1460	more->map = m;
1461	}
1462
1463	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1464	{
1465	if (!op->head)
1466	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1467	return NULL;
1468	}
1469	}
1470
1471	CLEAR_FLAG (op, FLAG_REMOVED);
1472		1301
1473	/* Ideally, the caller figures this out. However, it complicates a lot	1302	/* 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	1303	* of areas of callers (eg, anything that uses find_free_spot would now
1475	* need extra work	1304	* need extra work
1476	*/	1305	*/
1477	op->map = get_map_from_coord (m, &op->x, &op->y);	1306	if (!xy_normalise (m, op->x, op->y))
1478	x = op->x;	1307	{
1479	y = op->y;	1308	op->destroy (1);
		1309	return 0;
		1310	}
		1311
		1312	if (object *more = op->more)
		1313	if (!insert_ob_in_map (more, m, originator, flag))
		1314	return 0;
		1315
		1316	CLEAR_FLAG (op, FLAG_REMOVED);
		1317
		1318	op->map = m;
		1319	mapspace &ms = op->ms ();
1480		1320
1481	/* this has to be done after we translate the coordinates.	1321	/* this has to be done after we translate the coordinates.
1482	*/	1322	*/
1483	if (op->nrof && !(flag & INS_NO_MERGE))	1323	if (op->nrof && !(flag & INS_NO_MERGE))
1484	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1324	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1485	if (CAN_MERGE (op, tmp))	1325	if (object::can_merge (op, tmp))
1486	{	1326	{
		1327	// TODO: we atcually want to update tmp, not op,
		1328	// but some caller surely breaks when we return tmp
		1329	// from here :/
1487	op->nrof += tmp->nrof;	1330	op->nrof += tmp->nrof;
1488	remove_ob (tmp);	1331	tmp->destroy (1);
1489	free_object (tmp);
1490	}	1332	}
1491		1333
1492	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1334	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1493	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1335	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1494		1336
…		…
1507	op->below = originator->below;	1349	op->below = originator->below;
1508		1350
1509	if (op->below)	1351	if (op->below)
1510	op->below->above = op;	1352	op->below->above = op;
1511	else	1353	else
1512	SET_MAP_OB (op->map, op->x, op->y, op);	1354	ms.bot = op;
1513		1355
1514	/* since *below* originator, no need to update top */	1356	/* since *below* originator, no need to update top */
1515	originator->below = op;	1357	originator->below = op;
1516	}	1358	}
1517	else	1359	else
1518	{	1360	{
		1361	object *top, *floor = NULL;
		1362
		1363	top = ms.bot;
		1364
1519	/* If there are other objects, then */	1365	/* If there are other objects, then */
1520	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1366	if (top)
1521	{	1367	{
1522	object *last = NULL;	1368	object *last = 0;
1523		1369
1524	/*	1370	/*
1525	* If there are multiple objects on this space, we do some trickier handling.	1371	* If there are multiple objects on this space, we do some trickier handling.
1526	* We've already dealt with merging if appropriate.	1372	* We've already dealt with merging if appropriate.
1527	* Generally, we want to put the new object on top. But if	1373	* Generally, we want to put the new object on top. But if
…		…
1531	* once we get to them. This reduces the need to traverse over all of	1377	* 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	1378	* 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	1379	* when lots of spells are cast in one area. Currently, it is presumed
1534	* that flying non pickable objects are spell objects.	1380	* that flying non pickable objects are spell objects.
1535	*/	1381	*/
1536		1382	for (top = ms.bot; top; top = top->above)
1537	while (top != NULL)
1538	{	1383	{
1539	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1384	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1540	floor = top;	1385	floor = top;
		1386
1541	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1387	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1542	{	1388	{
1543	/* We insert above top, so we want this object below this */	1389	/* We insert above top, so we want this object below this */
1544	top = top->below;	1390	top = top->below;
1545	break;	1391	break;
1546	}	1392	}
		1393
1547	last = top;	1394	last = top;
1548	top = top->above;
1549	}	1395	}
		1396
1550	/* Don't want top to be NULL, so set it to the last valid object */	1397	/* Don't want top to be NULL, so set it to the last valid object */
1551	top = last;	1398	top = last;
1552		1399
1553	/* We let update_position deal with figuring out what the space	1400	/* We let update_position deal with figuring out what the space
1554	* looks like instead of lots of conditions here.	1401	* looks like instead of lots of conditions here.
1555	* makes things faster, and effectively the same result.	1402	* makes things faster, and effectively the same result.
1556	*/	1403	*/
1557		1404
1558	/* Have object 'fall below' other objects that block view.	1405	/* Have object 'fall below' other objects that block view.
1559	* Unless those objects are exits, type 66	1406	* Unless those objects are exits.
1560	* If INS_ON_TOP is used, don't do this processing	1407	* If INS_ON_TOP is used, don't do this processing
1561	* Need to find the object that in fact blocks view, otherwise	1408	* Need to find the object that in fact blocks view, otherwise
1562	* stacking is a bit odd.	1409	* stacking is a bit odd.
1563	*/	1410	*/
1564	if (!(flag & INS_ON_TOP) &&	1411	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))	1412	&& ms.flags () & P_BLOCKSVIEW
		1413	&& (op->face && !faces [op->face].visibility))
1566	{	1414	{
1567	for (last = top; last != floor; last = last->below)	1415	for (last = top; last != floor; last = last->below)
1568	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1416	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1569	break;	1417	break;
		1418
1570	/* Check to see if we found the object that blocks view,	1419	/* Check to see if we found the object that blocks view,
1571	* and make sure we have a below pointer for it so that	1420	* and make sure we have a below pointer for it so that
1572	* we can get inserted below this one, which requires we	1421	* we can get inserted below this one, which requires we
1573	* set top to the object below us.	1422	* set top to the object below us.
1574	*/	1423	*/
1575	if (last && last->below && last != floor)	1424	if (last && last->below && last != floor)
1576	top = last->below;	1425	top = last->below;
1577	}	1426	}
1578	} /* If objects on this space */	1427	} /* If objects on this space */
1579		1428
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)	1429	if (flag & INS_ABOVE_FLOOR_ONLY)
1584	top = floor;	1430	top = floor;
1585		1431
1586	/* Top is the object that our object (op) is going to get inserted above.	1432	/* Top is the object that our object (op) is going to get inserted above.
1587	*/	1433	*/
1588		1434
1589	/* First object on this space */	1435	/* First object on this space */
1590	if (!top)	1436	if (!top)
1591	{	1437	{
1592	op->above = GET_MAP_OB (op->map, op->x, op->y);	1438	op->above = ms.bot;
1593		1439
1594	if (op->above)	1440	if (op->above)
1595	op->above->below = op;	1441	op->above->below = op;
1596		1442
1597	op->below = NULL;	1443	op->below = 0;
1598	SET_MAP_OB (op->map, op->x, op->y, op);	1444	ms.bot = op;
1599	}	1445	}
1600	else	1446	else
1601	{ /* get inserted into the stack above top */	1447	{ /* get inserted into the stack above top */
1602	op->above = top->above;	1448	op->above = top->above;
1603		1449
…		…
1606		1452
1607	op->below = top;	1453	op->below = top;
1608	top->above = op;	1454	top->above = op;
1609	}	1455	}
1610		1456
1611	if (op->above == NULL)	1457	if (!op->above)
1612	SET_MAP_TOP (op->map, op->x, op->y, op);	1458	ms.top = op;
1613	} /* else not INS_BELOW_ORIGINATOR */	1459	} /* else not INS_BELOW_ORIGINATOR */
1614		1460
1615	if (op->type == PLAYER)	1461	if (op->type == PLAYER)
		1462	{
1616	op->contr->do_los = 1;	1463	op->contr->do_los = 1;
		1464	++op->map->players;
		1465	op->map->touch ();
		1466	}
1617		1467
1618	/* If we have a floor, we know the player, if any, will be above	1468	op->map->dirty = true;
1619	* it, so save a few ticks and start from there.	1469
1620	*/	1470	if (object *pl = ms.player ())
1621	if (!(flag & INS_MAP_LOAD))	1471	//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)	1472	esrv_send_item (pl, op);
1623	if (tmp->type == PLAYER)
1624	tmp->contr->socket.update_look = 1;
1625		1473
1626	/* If this object glows, it may affect lighting conditions that are	1474	/* If this object glows, it may affect lighting conditions that are
1627	* visible to others on this map. But update_all_los is really	1475	* 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	1476	* 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	1477	* on the map will get recalculated. The players could very well
1630	* be far away from this change and not affected in any way -	1478	* be far away from this change and not affected in any way -
1631	* this should get redone to only look for players within range,	1479	* this should get redone to only look for players within range,
1632	* or just updating the P_NEED_UPDATE for spaces within this area	1480	* or just updating the P_UPTODATE for spaces within this area
1633	* of effect may be sufficient.	1481	* of effect may be sufficient.
1634	*/	1482	*/
1635	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1483	if (op->map->darkness && (op->glow_radius != 0))
1636	update_all_los (op->map, op->x, op->y);	1484	update_all_los (op->map, op->x, op->y);
1637
1638		1485
1639	/* updates flags (blocked, alive, no magic, etc) for this map space */	1486	/* updates flags (blocked, alive, no magic, etc) for this map space */
1640	update_object (op, UP_OBJ_INSERT);	1487	update_object (op, UP_OBJ_INSERT);
1641		1488
		1489	INVOKE_OBJECT (INSERT, op);
1642		1490
1643	/* Don't know if moving this to the end will break anything. However,	1491	/* 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.	1492	* we want to have floorbox_update called before calling this.
1645	*	1493	*
1646	* check_move_on() must be after this because code called from	1494	* check_move_on() must be after this because code called from
1647	* check_move_on() depends on correct map flags (so functions like	1495	* check_move_on() depends on correct map flags (so functions like
1648	* blocked() and wall() work properly), and these flags are updated by	1496	* blocked() and wall() work properly), and these flags are updated by
1649	* update_object().	1497	* update_object().
1650	*/	1498	*/
1651		1499
1652	/* if this is not the head or flag has been passed, don't check walk on status */	1500	/* 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)	1501	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1654	{	1502	{
1655	if (check_move_on (op, originator))	1503	if (check_move_on (op, originator))
1656	return NULL;	1504	return 0;
1657		1505
1658	/* If we are a multi part object, lets work our way through the check	1506	/* If we are a multi part object, lets work our way through the check
1659	* walk on's.	1507	* walk on's.
1660	*/	1508	*/
1661	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1509	for (object *tmp = op->more; tmp; tmp = tmp->more)
1662	if (check_move_on (tmp, originator))	1510	if (check_move_on (tmp, originator))
1663	return NULL;	1511	return 0;
1664	}	1512	}
1665		1513
1666	return op;	1514	return op;
1667	}	1515	}
1668		1516
1669	/* this function inserts an object in the map, but if it	1517	/* 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.	1518	* 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.	1519	* op is the object to insert it under: supplies x and the map.
1672	*/	1520	*/
1673	void	1521	void
1674	replace_insert_ob_in_map (const char *arch_string, object *op)	1522	replace_insert_ob_in_map (const char *arch_string, object *op)
1675	{	1523	{
1676	object *tmp;
1677	object *tmp1;
1678
1679	/* first search for itself and remove any old instances */	1524	/* first search for itself and remove any old instances */
1680		1525
1681	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1526	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1682	{
1683	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1527	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1684	{	1528	tmp->destroy (1);
1685	remove_ob (tmp);
1686	free_object (tmp);
1687	}
1688	}
1689		1529
1690	tmp1 = arch_to_object (find_archetype (arch_string));	1530	object *tmp = arch_to_object (archetype::find (arch_string));
1691		1531
1692	tmp1->x = op->x;	1532	tmp->x = op->x;
1693	tmp1->y = op->y;	1533	tmp->y = op->y;
		1534
1694	insert_ob_in_map (tmp1, op->map, op, 0);	1535	insert_ob_in_map (tmp, op->map, op, 0);
1695	}	1536	}
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		1537
1705	object *	1538	object *
1706	get_split_ob (object *orig_ob, uint32 nr)	1539	object::insert_at (object *where, object *originator, int flags)
1707	{	1540	{
1708	object *	1541	if (where->env)
1709	newob;	1542	return where->env->insert (this);
1710	int	1543	else
1711	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1544	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	}	1545	}
1740		1546
1741	/*	1547	/*
1742	* decrease_ob_nr(object, number) decreases a specified number from	1548	* decrease(object, number) decreases a specified number from
1743	* the amount of an object. If the amount reaches 0, the object	1549	* the amount of an object. If the amount reaches 0, the object
1744	* is subsequently removed and freed.	1550	* is subsequently removed and freed.
1745	*	1551	*
1746	* Return value: 'op' if something is left, NULL if the amount reached 0	1552	* Return value: 'op' if something is left, NULL if the amount reached 0
1747	*/	1553	*/
		1554	bool
		1555	object::decrease (sint32 nr)
		1556	{
		1557	if (!nr)
		1558	return true;
1748		1559
		1560	nr = min (nr, nrof);
		1561
		1562	nrof -= nr;
		1563
		1564	if (nrof)
		1565	{
		1566	adjust_weight (env, -weight * nr); // carrying == 0
		1567
		1568	if (object *pl = visible_to ())
		1569	esrv_update_item (UPD_NROF, pl, this);
		1570
		1571	return true;
		1572	}
		1573	else
		1574	{
		1575	destroy (1);
		1576	return false;
		1577	}
		1578	}
		1579
		1580	/*
		1581	* split(ob,nr) splits up ob into two parts. The part which
		1582	* is returned contains nr objects, and the remaining parts contains
		1583	* the rest (or is removed and returned if that number is 0).
		1584	* On failure, NULL is returned.
		1585	*/
1749	object *	1586	object *
1750	decrease_ob_nr (object *op, uint32 i)	1587	object::split (sint32 nr)
1751	{	1588	{
1752	object *	1589	int have = number_of ();
1753	tmp;
1754	player *
1755	pl;
1756		1590
1757	if (i == 0) /* objects with op->nrof require this check */	1591	if (have < nr)
1758	return op;	1592	return 0;
1759		1593	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	}	1594	{
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);	1595	remove ();
1802	op->nrof = 0;	1596	return this;
1803	if (tmp)
1804	{
1805	esrv_del_item (tmp->contr, op->count);
1806	}
1807	}
1808	}	1597	}
1809	else	1598	else
1810	{	1599	{
1811	object *	1600	decrease (nr);
1812	above = op->above;
1813		1601
1814	if (i < op->nrof)	1602	object *op = object_create_clone (this);
1815	{
1816	op->nrof -= i;
1817	}
1818	else
1819	{
1820	remove_ob (op);
1821	op->nrof = 0;	1603	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;	1604	return op;
1837	}	1605	}
1838	else	1606	}
		1607
		1608	object *
		1609	insert_ob_in_ob (object *op, object *where)
		1610	{
		1611	if (!where)
1839	{	1612	{
1840	free_object (op);	1613	char *dump = dump_object (op);
		1614	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1615	free (dump);
1841	return NULL;	1616	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	{	1617	}
1855	if (op->type == CONTAINER)	1618
1856	{	1619	if (where->head_ () != where)
1857	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1858	}
1859	op->carrying += weight;
1860	op = op->env;
1861	}	1620	{
1862	}	1621	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1622	where = where->head;
		1623	}
1863		1624
		1625	return where->insert (op);
		1626	}
		1627
1864	/*	1628	/*
1865	* insert_ob_in_ob(op,environment):	1629	* env->insert (op)
1866	* This function inserts the object op in the linked list	1630	* This function inserts the object op in the linked list
1867	* inside the object environment.	1631	* inside the object environment.
1868	*	1632	*
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	1633	* The function returns now pointer to inserted item, and return value can
1875	* be != op, if items are merged. -Tero	1634	* be != op, if items are merged. -Tero
1876	*/	1635	*/
1877
1878	object *	1636	object *
1879	insert_ob_in_ob (object *op, object *where)	1637	object::insert (object *op)
1880	{	1638	{
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)	1639	if (op->more)
1903	{	1640	{
1904	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1641	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1905	return op;	1642	return op;
1906	}	1643	}
1907	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1644
1908	CLEAR_FLAG (op, FLAG_REMOVED);	1645	op->remove ();
		1646
		1647	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1648
1909	if (op->nrof)	1649	if (op->nrof)
1910	{
1911	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1650	for (object *tmp = inv; tmp; tmp = tmp->below)
1912	if (CAN_MERGE (tmp, op))	1651	if (object::can_merge (tmp, op))
1913	{	1652	{
1914	/* return the original object and remove inserted object	1653	/* return the original object and remove inserted object
1915	(client needs the original object) */	1654	(client needs the original object) */
1916	tmp->nrof += op->nrof;	1655	tmp->nrof += op->nrof;
1917	/* Weight handling gets pretty funky. Since we are adding to	1656
1918	* tmp->nrof, we need to increase the weight.	1657	if (object *pl = tmp->visible_to ())
1919	*/	1658	esrv_update_item (UPD_NROF, pl, tmp);
1920	add_weight (where, op->weight * op->nrof);	1659
1921	SET_FLAG (op, FLAG_REMOVED);	1660	adjust_weight (this, op->total_weight ());
1922	free_object (op); /* free the inserted object */	1661
		1662	op->destroy (1);
1923	op = tmp;	1663	op = tmp;
1924	remove_ob (op); /* and fix old object's links */	1664	goto inserted;
1925	CLEAR_FLAG (op, FLAG_REMOVED);
1926	break;
1927	}	1665	}
1928		1666
1929	/* I assume combined objects have no inventory	1667	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;	1668	op->map = 0;
1948	op->env = where;	1669	op->x = 0;
		1670	op->y = 0;
		1671
1949	op->above = NULL;	1672	op->above = 0;
1950	op->below = NULL;	1673	op->below = inv;
1951	op->x = 0, op->y = 0;	1674	op->env = this;
1952		1675
		1676	if (inv)
		1677	inv->above = op;
		1678
		1679	inv = op;
		1680
		1681	op->flag [FLAG_REMOVED] = 0;
		1682
		1683	if (object *pl = op->visible_to ())
		1684	esrv_send_item (pl, op);
		1685
		1686	adjust_weight (this, op->total_weight ());
		1687
		1688	inserted:
1953	/* reset the light list and los of the players on the map */	1689	/* reset the light list and los of the players on the map */
1954	if ((op->glow_radius != 0) && where->map)	1690	if (op->glow_radius && map && map->darkness)
1955	{	1691	update_all_los (map, x, y);
1956	#ifdef DEBUG_LIGHTS
1957	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1958	#endif /* DEBUG_LIGHTS */
1959	if (MAP_DARKNESS (where->map))
1960	update_all_los (where->map, where->x, where->y);
1961	}
1962		1692
1963	/* Client has no idea of ordering so lets not bother ordering it here.	1693	// if this is a player's inventory, update stats
1964	* It sure simplifies this function...	1694	if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1965	*/	1695	update_stats ();
1966	if (where->inv == NULL)	1696
1967	where->inv = op;	1697	INVOKE_OBJECT (INSERT, this);
1968	else	1698
1969	{
1970	op->below = where->inv;
1971	op->below->above = op;
1972	where->inv = op;
1973	}
1974	return op;	1699	return op;
1975	}	1700	}
1976		1701
1977	/*	1702	/*
1978	* Checks if any objects has a move_type that matches objects	1703	* Checks if any objects has a move_type that matches objects
…		…
1992	*	1717	*
1993	* MSW 2001-07-08: Check all objects on space, not just those below	1718	* 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	1719	* object being inserted. insert_ob_in_map may not put new objects
1995	* on top.	1720	* on top.
1996	*/	1721	*/
1997
1998	int	1722	int
1999	check_move_on (object *op, object *originator)	1723	check_move_on (object *op, object *originator)
2000	{	1724	{
2001	object *	1725	object *tmp;
2002	tmp;	1726	maptile *m = op->map;
2003	tag_t
2004	tag;
2005	mapstruct *
2006	m = op->map;
2007	int
2008	x = op->x, y = op->y;	1727	int x = op->x, y = op->y;
2009	MoveType	1728
2010	move_on,	1729	MoveType move_on, move_slow, move_block;
2011	move_slow,
2012	move_block;
2013		1730
2014	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1731	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2015	return 0;	1732	return 0;
2016
2017	tag = op->count;
2018		1733
2019	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1734	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);	1735	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);	1736	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
2022		1737
…		…
2038		1753
2039	/* The objects have to be checked from top to bottom.	1754	/* The objects have to be checked from top to bottom.
2040	* Hence, we first go to the top:	1755	* Hence, we first go to the top:
2041	*/	1756	*/
2042		1757
2043	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1758	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
2044	{	1759	{
2045	/* Trim the search when we find the first other spell effect	1760	/* Trim the search when we find the first other spell effect
2046	* this helps performance so that if a space has 50 spell objects,	1761	* this helps performance so that if a space has 50 spell objects,
2047	* we don't need to check all of them.	1762	* we don't need to check all of them.
2048	*/	1763	*/
2049	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))	1764	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
2050	break;	1765	break;
2051	}	1766	}
		1767
2052	for (; tmp != NULL; tmp = tmp->below)	1768	for (; tmp; tmp = tmp->below)
2053	{	1769	{
2054	if (tmp == op)	1770	if (tmp == op)
2055	continue; /* Can't apply yourself */	1771	continue; /* Can't apply yourself */
2056		1772
2057	/* Check to see if one of the movement types should be slowed down.	1773	/* Check to see if one of the movement types should be slowed down.
…		…
2065	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1781	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))	1782	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
2067	{	1783	{
2068		1784
2069	float	1785	float
2070	diff;
2071
2072	diff = tmp->move_slow_penalty * FABS (op->speed);	1786	diff = tmp->move_slow_penalty * fabs (op->speed);
		1787
2073	if (op->type == PLAYER)	1788	if (op->type == PLAYER)
2074	{
2075	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1789	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)))	1790	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
2077	{
2078	diff /= 4.0;	1791	diff /= 4.0;
2079	}	1792
2080	}
2081	op->speed_left -= diff;	1793	op->speed_left -= diff;
2082	}	1794	}
2083	}	1795	}
2084		1796
2085	/* Basically same logic as above, except now for actual apply. */	1797	/* Basically same logic as above, except now for actual apply. */
2086	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1798	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))	1799	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2088	{	1800	{
2089
2090	move_apply (tmp, op, originator);	1801	move_apply (tmp, op, originator);
		1802
2091	if (was_destroyed (op, tag))	1803	if (op->destroyed ())
2092	return 1;	1804	return 1;
2093		1805
2094	/* what the person/creature stepped onto has moved the object	1806	/* what the person/creature stepped onto has moved the object
2095	* someplace new. Don't process any further - if we did,	1807	* someplace new. Don't process any further - if we did,
2096	* have a feeling strange problems would result.	1808	* have a feeling strange problems would result.
2097	*/	1809	*/
2098	if (op->map != m || op->x != x || op->y != y)	1810	if (op->map != m || op->x != x || op->y != y)
2099	return 0;	1811	return 0;
2100	}	1812	}
2101	}	1813	}
		1814
2102	return 0;	1815	return 0;
2103	}	1816	}
2104		1817
2105	/*	1818	/*
2106	* present_arch(arch, map, x, y) searches for any objects with	1819	* present_arch(arch, map, x, y) searches for any objects with
2107	* a matching archetype at the given map and coordinates.	1820	* a matching archetype at the given map and coordinates.
2108	* The first matching object is returned, or NULL if none.	1821	* The first matching object is returned, or NULL if none.
2109	*/	1822	*/
2110
2111	object *	1823	object *
2112	present_arch (const archetype *at, mapstruct *m, int x, int y)	1824	present_arch (const archetype *at, maptile *m, int x, int y)
2113	{	1825	{
2114	object *
2115	tmp;
2116
2117	if (m == NULL || out_of_map (m, x, y))	1826	if (!m || out_of_map (m, x, y))
2118	{	1827	{
2119	LOG (llevError, "Present_arch called outside map.\n");	1828	LOG (llevError, "Present_arch called outside map.\n");
2120	return NULL;	1829	return NULL;
2121	}	1830	}
2122	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1831
		1832	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2123	if (tmp->arch == at)	1833	if (tmp->arch == at)
2124	return tmp;	1834	return tmp;
		1835
2125	return NULL;	1836	return NULL;
2126	}	1837	}
2127		1838
2128	/*	1839	/*
2129	* present(type, map, x, y) searches for any objects with	1840	* present(type, map, x, y) searches for any objects with
2130	* a matching type variable at the given map and coordinates.	1841	* a matching type variable at the given map and coordinates.
2131	* The first matching object is returned, or NULL if none.	1842	* The first matching object is returned, or NULL if none.
2132	*/	1843	*/
2133
2134	object *	1844	object *
2135	present (unsigned char type, mapstruct *m, int x, int y)	1845	present (unsigned char type, maptile *m, int x, int y)
2136	{	1846	{
2137	object *
2138	tmp;
2139
2140	if (out_of_map (m, x, y))	1847	if (out_of_map (m, x, y))
2141	{	1848	{
2142	LOG (llevError, "Present called outside map.\n");	1849	LOG (llevError, "Present called outside map.\n");
2143	return NULL;	1850	return NULL;
2144	}	1851	}
2145	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1852
		1853	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2146	if (tmp->type == type)	1854	if (tmp->type == type)
2147	return tmp;	1855	return tmp;
		1856
2148	return NULL;	1857	return NULL;
2149	}	1858	}
2150		1859
2151	/*	1860	/*
2152	* present_in_ob(type, object) searches for any objects with	1861	* present_in_ob(type, object) searches for any objects with
2153	* a matching type variable in the inventory of the given object.	1862	* a matching type variable in the inventory of the given object.
2154	* The first matching object is returned, or NULL if none.	1863	* The first matching object is returned, or NULL if none.
2155	*/	1864	*/
2156
2157	object *	1865	object *
2158	present_in_ob (unsigned char type, const object *op)	1866	present_in_ob (unsigned char type, const object *op)
2159	{	1867	{
2160	object *
2161	tmp;
2162
2163	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1868	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2164	if (tmp->type == type)	1869	if (tmp->type == type)
2165	return tmp;	1870	return tmp;
		1871
2166	return NULL;	1872	return NULL;
2167	}	1873	}
2168		1874
2169	/*	1875	/*
2170	* present_in_ob (type, str, object) searches for any objects with	1876	* present_in_ob (type, str, object) searches for any objects with
…		…
2178	* str is the string to match against. Note that we match against	1884	* 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	1885	* 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	1886	* spell code can use one object type (force), but change it's name
2181	* to be unique.	1887	* to be unique.
2182	*/	1888	*/
2183
2184	object *	1889	object *
2185	present_in_ob_by_name (int type, const char *str, const object *op)	1890	present_in_ob_by_name (int type, const char *str, const object *op)
2186	{	1891	{
2187	object *
2188	tmp;
2189
2190	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1892	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2191	{
2192	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1893	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2193	return tmp;	1894	return tmp;
2194	}	1895
2195	return NULL;	1896	return 0;
2196	}	1897	}
2197		1898
2198	/*	1899	/*
2199	* present_arch_in_ob(archetype, object) searches for any objects with	1900	* present_arch_in_ob(archetype, object) searches for any objects with
2200	* a matching archetype in the inventory of the given object.	1901	* a matching archetype in the inventory of the given object.
2201	* The first matching object is returned, or NULL if none.	1902	* The first matching object is returned, or NULL if none.
2202	*/	1903	*/
2203
2204	object *	1904	object *
2205	present_arch_in_ob (const archetype *at, const object *op)	1905	present_arch_in_ob (const archetype *at, const object *op)
2206	{	1906	{
2207	object *
2208	tmp;
2209
2210	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1907	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2211	if (tmp->arch == at)	1908	if (tmp->arch == at)
2212	return tmp;	1909	return tmp;
		1910
2213	return NULL;	1911	return NULL;
2214	}	1912	}
2215		1913
2216	/*	1914	/*
2217	* activate recursively a flag on an object inventory	1915	* activate recursively a flag on an object inventory
2218	*/	1916	*/
2219	void	1917	void
2220	flag_inv (object *op, int flag)	1918	flag_inv (object *op, int flag)
2221	{	1919	{
2222	object *
2223	tmp;
2224
2225	if (op->inv)
2226	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1920	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2227	{	1921	{
2228	SET_FLAG (tmp, flag);	1922	SET_FLAG (tmp, flag);
2229	flag_inv (tmp, flag);	1923	flag_inv (tmp, flag);
2230	}	1924	}
2231	} /*	1925	}
		1926
		1927	/*
2232	* desactivate recursively a flag on an object inventory	1928	* deactivate recursively a flag on an object inventory
2233	*/	1929	*/
2234	void	1930	void
2235	unflag_inv (object *op, int flag)	1931	unflag_inv (object *op, int flag)
2236	{	1932	{
2237	object *
2238	tmp;
2239
2240	if (op->inv)
2241	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1933	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2242	{	1934	{
2243	CLEAR_FLAG (tmp, flag);	1935	CLEAR_FLAG (tmp, flag);
2244	unflag_inv (tmp, flag);	1936	unflag_inv (tmp, flag);
2245	}	1937	}
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	}	1938	}
2261		1939
2262	/*	1940	/*
2263	* find_free_spot(object, map, x, y, start, stop) will search for	1941	* 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	1942	* a spot at the given map and coordinates which will be able to contain
…		…
2266	* to search (see the freearr_x/y[] definition).	1944	* to search (see the freearr_x/y[] definition).
2267	* It returns a random choice among the alternatives found.	1945	* 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	1946	* 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	1947	* 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)	1948	* 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	1949	* Note: This function does correctly handle tiled maps, but does not
2275	* inform the caller. However, insert_ob_in_map will update as	1950	* inform the caller. However, insert_ob_in_map will update as
2276	* necessary, so the caller shouldn't need to do any special work.	1951	* 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	1952	* 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	1953	* 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	1954	* 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	1955	* the archetype because that isn't correct if the monster has been
2281	* customized, changed states, etc.	1956	* customized, changed states, etc.
2282	*/	1957	*/
2283
2284	int	1958	int
2285	find_free_spot (const object *ob, mapstruct *m, int x, int y, int start, int stop)	1959	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2286	{	1960	{
2287	int
2288	i,
2289	index = 0, flag;
2290	static int
2291	altern[SIZEOFFREE];	1961	int altern[SIZEOFFREE];
		1962	int index = 0, flag;
2292		1963
2293	for (i = start; i < stop; i++)	1964	for (int i = start; i < stop; i++)
2294	{	1965	{
2295	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1966	mapxy pos (m, x, y); pos.move (i);
2296	if (!flag)	1967
		1968	if (!pos.normalise ())
		1969	continue;
		1970
		1971	mapspace &ms = *pos;
		1972
		1973	if (ms.flags () & P_IS_ALIVE)
		1974	continue;
		1975
		1976	/* However, often
		1977	* ob doesn't have any move type (when used to place exits)
		1978	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1979	*/
		1980	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1981	{
2297	altern[index++] = i;	1982	altern [index++] = i;
		1983	continue;
		1984	}
2298		1985
2299	/* Basically, if we find a wall on a space, we cut down the search size.	1986	/* 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.	1987	* 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 -	1988	* 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	1989	* 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	1990	* spaces in all the other directions, this will reduce the search space
2304	* to only the spaces immediately surrounding the target area, and	1991	* to only the spaces immediately surrounding the target area, and
2305	* won't look 2 spaces south of the target space.	1992	* won't look 2 spaces south of the target space.
2306	*/	1993	*/
2307	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	1994	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1995	{
2308	stop = maxfree[i];	1996	stop = maxfree[i];
		1997	continue;
		1998	}
		1999
		2000	/* Note it is intentional that we check ob - the movement type of the
		2001	* head of the object should correspond for the entire object.
		2002	*/
		2003	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		2004	continue;
		2005
		2006	if (ob->blocked (m, pos.x, pos.y))
		2007	continue;
		2008
		2009	altern [index++] = i;
2309	}	2010	}
		2011
2310	if (!index)	2012	if (!index)
2311	return -1;	2013	return -1;
		2014
2312	return altern[RANDOM () % index];	2015	return altern [rndm (index)];
2313	}	2016	}
2314		2017
2315	/*	2018	/*
2316	* find_first_free_spot(archetype, mapstruct, x, y) works like	2019	* find_first_free_spot(archetype, maptile, x, y) works like
2317	* find_free_spot(), but it will search max number of squares.	2020	* find_free_spot(), but it will search max number of squares.
2318	* But it will return the first available spot, not a random choice.	2021	* 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.	2022	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2320	*/	2023	*/
2321
2322	int	2024	int
2323	find_first_free_spot (const object *ob, mapstruct *m, int x, int y)	2025	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2324	{	2026	{
2325	int
2326	i;
2327
2328	for (i = 0; i < SIZEOFFREE; i++)	2027	for (int i = 0; i < SIZEOFFREE; i++)
2329	{
2330	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2028	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2331	return i;	2029	return i;
2332	}	2030
2333	return -1;	2031	return -1;
2334	}	2032	}
2335		2033
2336	/*	2034	/*
2337	* The function permute(arr, begin, end) randomly reorders the array	2035	* The function permute(arr, begin, end) randomly reorders the array
2338	* arr[begin..end-1].	2036	* arr[begin..end-1].
		2037	* now uses a fisher-yates shuffle, old permute was broken
2339	*/	2038	*/
2340	static void	2039	static void
2341	permute (int *arr, int begin, int end)	2040	permute (int *arr, int begin, int end)
2342	{	2041	{
2343	int	2042	arr += begin;
2344	i,
2345	j,
2346	tmp,
2347	len;
2348
2349	len = end - begin;	2043	end -= begin;
2350	for (i = begin; i < end; i++)
2351	{
2352	j = begin + RANDOM () % len;
2353		2044
2354	tmp = arr[i];	2045	while (--end)
2355	arr[i] = arr[j];	2046	swap (arr [end], arr [rndm (end + 1)]);
2356	arr[j] = tmp;
2357	}
2358	}	2047	}
2359		2048
2360	/* new function to make monster searching more efficient, and effective!	2049	/* new function to make monster searching more efficient, and effective!
2361	* This basically returns a randomized array (in the passed pointer) of	2050	* 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	2051	* 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.	2054	* the 3x3 area will be searched, just not in a predictable order.
2366	*/	2055	*/
2367	void	2056	void
2368	get_search_arr (int *search_arr)	2057	get_search_arr (int *search_arr)
2369	{	2058	{
2370	int	2059	int i;
2371	i;
2372		2060
2373	for (i = 0; i < SIZEOFFREE; i++)	2061	for (i = 0; i < SIZEOFFREE; i++)
2374	{
2375	search_arr[i] = i;	2062	search_arr[i] = i;
2376	}
2377		2063
2378	permute (search_arr, 1, SIZEOFFREE1 + 1);	2064	permute (search_arr, 1, SIZEOFFREE1 + 1);
2379	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2065	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2380	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2066	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2381	}	2067	}
…		…
2390	* Perhaps incorrectly, but I'm making the assumption that exclude	2076	* 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	2077	* 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	2078	* because we have to know what movement the thing looking to move
2393	* there is capable of.	2079	* there is capable of.
2394	*/	2080	*/
2395
2396	int	2081	int
2397	find_dir (mapstruct *m, int x, int y, object *exclude)	2082	find_dir (maptile *m, int x, int y, object *exclude)
2398	{	2083	{
2399	int
2400	i,
2401	max = SIZEOFFREE, mflags;	2084	int i, max = SIZEOFFREE, mflags;
2402	sint16	2085
2403	nx,	2086	sint16 nx, ny;
2404	ny;
2405	object *	2087	object *tmp;
2406	tmp;	2088	maptile *mp;
2407	mapstruct *
2408	mp;
2409	MoveType
2410	blocked,
2411	move_type;
2412		2089
		2090	MoveType blocked, move_type;
		2091
2413	if (exclude && exclude->head)	2092	if (exclude && exclude->head_ () != exclude)
2414	{	2093	{
2415	exclude = exclude->head;	2094	exclude = exclude->head;
2416	move_type = exclude->move_type;	2095	move_type = exclude->move_type;
2417	}	2096	}
2418	else	2097	else
…		…
2426	mp = m;	2105	mp = m;
2427	nx = x + freearr_x[i];	2106	nx = x + freearr_x[i];
2428	ny = y + freearr_y[i];	2107	ny = y + freearr_y[i];
2429		2108
2430	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2109	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2110
2431	if (mflags & P_OUT_OF_MAP)	2111	if (mflags & P_OUT_OF_MAP)
2432	{
2433	max = maxfree[i];	2112	max = maxfree[i];
2434	}
2435	else	2113	else
2436	{	2114	{
2437	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2115	mapspace &ms = mp->at (nx, ny);
		2116
		2117	blocked = ms.move_block;
2438		2118
2439	if ((move_type & blocked) == move_type)	2119	if ((move_type & blocked) == move_type)
2440	{
2441	max = maxfree[i];	2120	max = maxfree[i];
2442	}
2443	else if (mflags & P_IS_ALIVE)	2121	else if (mflags & P_IS_ALIVE)
2444	{	2122	{
2445	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2123	for (tmp = ms.bot; tmp; tmp = tmp->above)
2446	{	2124	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2447	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2125	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2448	{
2449	break;	2126	break;
2450	}	2127
2451	}
2452	if (tmp)	2128	if (tmp)
2453	{
2454	return freedir[i];	2129	return freedir[i];
2455	}
2456	}	2130	}
2457	}	2131	}
2458	}	2132	}
		2133
2459	return 0;	2134	return 0;
2460	}	2135	}
2461		2136
2462	/*	2137	/*
2463	* distance(object 1, object 2) will return the square of the	2138	* distance(object 1, object 2) will return the square of the
2464	* distance between the two given objects.	2139	* distance between the two given objects.
2465	*/	2140	*/
2466
2467	int	2141	int
2468	distance (const object *ob1, const object *ob2)	2142	distance (const object *ob1, const object *ob2)
2469	{	2143	{
2470	int
2471	i;
2472
2473	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2144	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2474	return i;
2475	}	2145	}
2476		2146
2477	/*	2147	/*
2478	* find_dir_2(delta-x,delta-y) will return a direction in which	2148	* 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	2149	* an object which has subtracted the x and y coordinates of another
2480	* object, needs to travel toward it.	2150	* object, needs to travel toward it.
2481	*/	2151	*/
2482
2483	int	2152	int
2484	find_dir_2 (int x, int y)	2153	find_dir_2 (int x, int y)
2485	{	2154	{
2486	int	2155	int q;
2487	q;
2488		2156
2489	if (y)	2157	if (y)
2490	q = x * 100 / y;	2158	q = x * 100 / y;
2491	else if (x)	2159	else if (x)
2492	q = -300 * x;	2160	q = -300 * x;
…		…
2517		2185
2518	return 3;	2186	return 3;
2519	}	2187	}
2520		2188
2521	/*	2189	/*
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	2190	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2539	* between two directions (which are expected to be absolute (see absdir())	2191	* between two directions (which are expected to be absolute (see absdir())
2540	*/	2192	*/
2541
2542	int	2193	int
2543	dirdiff (int dir1, int dir2)	2194	dirdiff (int dir1, int dir2)
2544	{	2195	{
2545	int	2196	int d;
2546	d;
2547		2197
2548	d = abs (dir1 - dir2);	2198	d = abs (dir1 - dir2);
2549	if (d > 4)	2199	if (d > 4)
2550	d = 8 - d;	2200	d = 8 - d;
		2201
2551	return d;	2202	return d;
2552	}	2203	}
2553		2204
2554	/* peterm:	2205	/* peterm:
2555	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2206	* 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	2209	* 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.	2210	* 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	2211	* Moved from spell_util.c to object.c with the other related direction
2561	* functions.	2212	* functions.
2562	*/	2213	*/
2563
2564	int
2565	reduction_dir[SIZEOFFREE][3] = {	2214	int reduction_dir[SIZEOFFREE][3] = {
2566	{0, 0, 0}, /* 0 */	2215	{0, 0, 0}, /* 0 */
2567	{0, 0, 0}, /* 1 */	2216	{0, 0, 0}, /* 1 */
2568	{0, 0, 0}, /* 2 */	2217	{0, 0, 0}, /* 2 */
2569	{0, 0, 0}, /* 3 */	2218	{0, 0, 0}, /* 3 */
2570	{0, 0, 0}, /* 4 */	2219	{0, 0, 0}, /* 4 */
…		…
2618	* find a path to that monster that we found. If not,	2267	* find a path to that monster that we found. If not,
2619	* we don't bother going toward it. Returns 1 if we	2268	* we don't bother going toward it. Returns 1 if we
2620	* can see a direct way to get it	2269	* can see a direct way to get it
2621	* Modified to be map tile aware -.MSW	2270	* Modified to be map tile aware -.MSW
2622	*/	2271	*/
2623
2624
2625	int	2272	int
2626	can_see_monsterP (mapstruct *m, int x, int y, int dir)	2273	can_see_monsterP (maptile *m, int x, int y, int dir)
2627	{	2274	{
2628	sint16	2275	sint16 dx, dy;
2629	dx,
2630	dy;
2631	int
2632	mflags;	2276	int mflags;
2633		2277
2634	if (dir < 0)	2278	if (dir < 0)
2635	return 0; /* exit condition: invalid direction */	2279	return 0; /* exit condition: invalid direction */
2636		2280
2637	dx = x + freearr_x[dir];	2281	dx = x + freearr_x[dir];
…		…
2650	return 0;	2294	return 0;
2651		2295
2652	/* yes, can see. */	2296	/* yes, can see. */
2653	if (dir < 9)	2297	if (dir < 9)
2654	return 1;	2298	return 1;
		2299
2655	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2300	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]);	2301	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2302	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2657	}	2303	}
2658
2659
2660		2304
2661	/*	2305	/*
2662	* can_pick(picker, item): finds out if an object is possible to be	2306	* 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	2307	* picked up by the picker. Returnes 1 if it can be
2664	* picked up, otherwise 0.	2308	* picked up, otherwise 0.
…		…
2666	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2310	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2667	* core dumps if they do.	2311	* core dumps if they do.
2668	*	2312	*
2669	* Add a check so we can't pick up invisible objects (0.93.8)	2313	* Add a check so we can't pick up invisible objects (0.93.8)
2670	*/	2314	*/
2671
2672	int	2315	int
2673	can_pick (const object *who, const object *item)	2316	can_pick (const object *who, const object *item)
2674	{	2317	{
2675	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2318	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2676	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2319	(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));	2320	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2678	}	2321	}
2679		2322
2680
2681	/*	2323	/*
2682	* create clone from object to another	2324	* create clone from object to another
2683	*/	2325	*/
2684	object *	2326	object *
2685	object_create_clone (object *asrc)	2327	object_create_clone (object *asrc)
2686	{	2328	{
2687	object *	2329	object *dst = 0;
2688	dst = NULL, *tmp, *src, *part, *prev, *item;
2689		2330
2690	if (!asrc)	2331	if (!asrc)
2691	return NULL;	2332	return 0;
2692	src = asrc;
2693	if (src->head)
2694	src = src->head;
2695		2333
2696	prev = NULL;	2334	object *src = asrc->head_ ();
		2335
		2336	object *prev = 0;
2697	for (part = src; part; part = part->more)	2337	for (object *part = src; part; part = part->more)
2698	{	2338	{
2699	tmp = get_object ();	2339	object *tmp = part->clone ();
2700	copy_object (part, tmp);	2340
2701	tmp->x -= src->x;	2341	tmp->x -= src->x;
2702	tmp->y -= src->y;	2342	tmp->y -= src->y;
		2343
2703	if (!part->head)	2344	if (!part->head)
2704	{	2345	{
2705	dst = tmp;	2346	dst = tmp;
2706	tmp->head = NULL;	2347	tmp->head = 0;
2707	}	2348	}
2708	else	2349	else
2709	{
2710	tmp->head = dst;	2350	tmp->head = dst;
2711	}	2351
2712	tmp->more = NULL;	2352	tmp->more = 0;
		2353
2713	if (prev)	2354	if (prev)
2714	prev->more = tmp;	2355	prev->more = tmp;
		2356
2715	prev = tmp;	2357	prev = tmp;
2716	}	2358	}
2717		2359
2718	/*** copy inventory ***/
2719	for (item = src->inv; item; item = item->below)	2360	for (object *item = src->inv; item; item = item->below)
2720	{
2721	(void) insert_ob_in_ob (object_create_clone (item), dst);	2361	insert_ob_in_ob (object_create_clone (item), dst);
2722	}
2723		2362
2724	return dst;	2363	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	}	2364	}
2782		2365
2783	/* This returns the first object in who's inventory that	2366	/* This returns the first object in who's inventory that
2784	* has the same type and subtype match.	2367	* has the same type and subtype match.
2785	* returns NULL if no match.	2368	* returns NULL if no match.
2786	*/	2369	*/
2787	object *	2370	object *
2788	find_obj_by_type_subtype (const object *who, int type, int subtype)	2371	find_obj_by_type_subtype (const object *who, int type, int subtype)
2789	{	2372	{
2790	object *
2791	tmp;
2792
2793	for (tmp = who->inv; tmp; tmp = tmp->below)	2373	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2794	if (tmp->type == type && tmp->subtype == subtype)	2374	if (tmp->type == type && tmp->subtype == subtype)
2795	return tmp;	2375	return tmp;
2796		2376
2797	return NULL;	2377	return 0;
2798	}	2378	}
2799		2379
2800	/* If ob has a field named key, return the link from the list,	2380	/* If ob has a field named key, return the link from the list,
2801	* otherwise return NULL.	2381	* otherwise return NULL.
2802	*	2382	*
…		…
2804	* do the desired thing.	2384	* do the desired thing.
2805	*/	2385	*/
2806	key_value *	2386	key_value *
2807	get_ob_key_link (const object *ob, const char *key)	2387	get_ob_key_link (const object *ob, const char *key)
2808	{	2388	{
2809	key_value *
2810	link;
2811
2812	for (link = ob->key_values; link != NULL; link = link->next)	2389	for (key_value *link = ob->key_values; link; link = link->next)
2813	{
2814	if (link->key == key)	2390	if (link->key == key)
2815	{
2816	return link;	2391	return link;
2817	}
2818	}
2819		2392
2820	return NULL;	2393	return 0;
2821	}	2394	}
2822		2395
2823	/*	2396	/*
2824	* Returns the value of op has an extra_field for key, or NULL.	2397	* Returns the value of op has an extra_field for key, or NULL.
2825	*	2398	*
…		…
2828	* The returned string is shared.	2401	* The returned string is shared.
2829	*/	2402	*/
2830	const char *	2403	const char *
2831	get_ob_key_value (const object *op, const char *const key)	2404	get_ob_key_value (const object *op, const char *const key)
2832	{	2405	{
2833	key_value *	2406	key_value *link;
2834	link;	2407	shstr_cmp canonical_key (key);
2835	const char *
2836	canonical_key;
2837		2408
2838	canonical_key = shstr::find (key);
2839
2840	if (canonical_key == NULL)	2409	if (!canonical_key)
2841	{	2410	{
2842	/* 1. There being a field named key on any object	2411	/* 1. There being a field named key on any object
2843	* implies there'd be a shared string to find.	2412	* implies there'd be a shared string to find.
2844	* 2. Since there isn't, no object has this field.	2413	* 2. Since there isn't, no object has this field.
2845	* 3. Therefore, *this* object doesn't have this field.	2414	* 3. Therefore, *this* object doesn't have this field.
2846	*/	2415	*/
2847	return NULL;	2416	return 0;
2848	}	2417	}
2849		2418
2850	/* This is copied from get_ob_key_link() above -	2419	/* This is copied from get_ob_key_link() above -
2851	* only 4 lines, and saves the function call overhead.	2420	* only 4 lines, and saves the function call overhead.
2852	*/	2421	*/
2853	for (link = op->key_values; link != NULL; link = link->next)	2422	for (link = op->key_values; link; link = link->next)
2854	{
2855	if (link->key == canonical_key)	2423	if (link->key == canonical_key)
2856	{
2857	return link->value;	2424	return link->value;
2858	}	2425
2859	}
2860	return NULL;	2426	return 0;
2861	}	2427	}
2862
2863		2428
2864	/*	2429	/*
2865	* Updates the canonical_key in op to value.	2430	* Updates the canonical_key in op to value.
2866	*	2431	*
2867	* canonical_key is a shared string (value doesn't have to be).	2432	* canonical_key is a shared string (value doesn't have to be).
…		…
2872	* Returns TRUE on success.	2437	* Returns TRUE on success.
2873	*/	2438	*/
2874	int	2439	int
2875	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)	2440	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2876	{	2441	{
2877	key_value *
2878	field = NULL, *last = NULL;	2442	key_value *field = NULL, *last = NULL;
2879		2443
2880	for (field = op->key_values; field != NULL; field = field->next)	2444	for (field = op->key_values; field != NULL; field = field->next)
2881	{	2445	{
2882	if (field->key != canonical_key)	2446	if (field->key != canonical_key)
2883	{	2447	{
…		…
2892	/* Basically, if the archetype has this key set,	2456	/* Basically, if the archetype has this key set,
2893	* we need to store the null value so when we save	2457	* we need to store the null value so when we save
2894	* it, we save the empty value so that when we load,	2458	* it, we save the empty value so that when we load,
2895	* we get this value back again.	2459	* we get this value back again.
2896	*/	2460	*/
2897	if (get_ob_key_link (&op->arch->clone, canonical_key))	2461	if (get_ob_key_link (op->arch, canonical_key))
2898	field->value = 0;	2462	field->value = 0;
2899	else	2463	else
2900	{	2464	{
2901	if (last)	2465	if (last)
2902	last->next = field->next;	2466	last->next = field->next;
2903	else	2467	else
2904	op->key_values = field->next;	2468	op->key_values = field->next;
2905		2469
2906	delete
2907	field;	2470	delete field;
2908	}	2471	}
2909	}	2472	}
2910	return TRUE;	2473	return TRUE;
2911	}	2474	}
2912	/* IF we get here, key doesn't exist */	2475	/* IF we get here, key doesn't exist */
2913		2476
2914	/* No field, we'll have to add it. */	2477	/* No field, we'll have to add it. */
2915		2478
2916	if (!add_key)	2479	if (!add_key)
2917	{
2918	return FALSE;	2480	return FALSE;
2919	}	2481
2920	/* There isn't any good reason to store a null	2482	/* There isn't any good reason to store a null
2921	* value in the key/value list. If the archetype has	2483	* value in the key/value list. If the archetype has
2922	* this key, then we should also have it, so shouldn't	2484	* this key, then we should also have it, so shouldn't
2923	* be here. If user wants to store empty strings,	2485	* be here. If user wants to store empty strings,
2924	* should pass in ""	2486	* should pass in ""
…		…
2947	* Returns TRUE on success.	2509	* Returns TRUE on success.
2948	*/	2510	*/
2949	int	2511	int
2950	set_ob_key_value (object *op, const char *key, const char *value, int add_key)	2512	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2951	{	2513	{
2952	shstr
2953	key_ (key);	2514	shstr key_ (key);
2954		2515
2955	return set_ob_key_value_s (op, key_, value, add_key);	2516	return set_ob_key_value_s (op, key_, value, add_key);
2956	}	2517	}
		2518
		2519	object::depth_iterator::depth_iterator (object *container)
		2520	: iterator_base (container)
		2521	{
		2522	while (item->inv)
		2523	item = item->inv;
		2524	}
		2525
		2526	void
		2527	object::depth_iterator::next ()
		2528	{
		2529	if (item->below)
		2530	{
		2531	item = item->below;
		2532
		2533	while (item->inv)
		2534	item = item->inv;
		2535	}
		2536	else
		2537	item = item->env;
		2538	}
		2539
		2540	const char *
		2541	object::flag_desc (char *desc, int len) const
		2542	{
		2543	char *p = desc;
		2544	bool first = true;
		2545
		2546	*p = 0;
		2547
		2548	for (int i = 0; i < NUM_FLAGS; i++)
		2549	{
		2550	if (len <= 10) // magic constant!
		2551	{
		2552	snprintf (p, len, ",...");
		2553	break;
		2554	}
		2555
		2556	if (flag [i])
		2557	{
		2558	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2559	len -= cnt;
		2560	p += cnt;
		2561	first = false;
		2562	}
		2563	}
		2564
		2565	return desc;
		2566	}
		2567
		2568	// return a suitable string describing an object in enough detail to find it
		2569	const char *
		2570	object::debug_desc (char *info) const
		2571	{
		2572	char flagdesc[512];
		2573	char info2[256 * 4];
		2574	char *p = info;
		2575
		2576	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s,flags:[%s],type:%d}",
		2577	count,
		2578	uuid.c_str (),
		2579	&name,
		2580	title ? "\",title:\"" : "",
		2581	title ? (const char *)title : "",
		2582	flag_desc (flagdesc, 512), type);
		2583
		2584	if (!flag[FLAG_REMOVED] && env)
		2585	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2586
		2587	if (map)
		2588	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2589
		2590	return info;
		2591	}
		2592
		2593	const char *
		2594	object::debug_desc () const
		2595	{
		2596	static char info[3][256 * 4];
		2597	static int info_idx;
		2598
		2599	return debug_desc (info [++info_idx % 3]);
		2600	}
		2601
		2602	struct region *
		2603	object::region () const
		2604	{
		2605	return map ? map->region (x, y)
		2606	: region::default_region ();
		2607	}
		2608
		2609	const materialtype_t *
		2610	object::dominant_material () const
		2611	{
		2612	if (materialtype_t *mt = name_to_material (materialname))
		2613	return mt;
		2614
		2615	return name_to_material (shstr_unknown);
		2616	}
		2617
		2618	void
		2619	object::open_container (object *new_container)
		2620	{
		2621	if (container == new_container)
		2622	return;
		2623
		2624	object *old_container = container;
		2625
		2626	if (old_container)
		2627	{
		2628	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2629	return;
		2630
		2631	#if 0
		2632	// remove the "Close old_container" object.
		2633	if (object *closer = old_container->inv)
		2634	if (closer->type == CLOSE_CON)
		2635	closer->destroy ();
		2636	#endif
		2637
		2638	// make sure the container is available
		2639	esrv_send_item (this, old_container);
		2640
		2641	old_container->flag [FLAG_APPLIED] = false;
		2642	container = 0;
		2643
		2644	// client needs item update to make it work, client bug requires this to be separate
		2645	esrv_update_item (UPD_FLAGS, this, old_container);
		2646
		2647	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2648	play_sound (sound_find ("chest_close"));
		2649	}
		2650
		2651	if (new_container)
		2652	{
		2653	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2654	return;
		2655
		2656	// TODO: this does not seem to serve any purpose anymore?
		2657	#if 0
		2658	// insert the "Close Container" object.
		2659	if (archetype *closer = new_container->other_arch)
		2660	{
		2661	object *closer = arch_to_object (new_container->other_arch);
		2662	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2663	new_container->insert (closer);
		2664	}
		2665	#endif
		2666
		2667	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2668
		2669	// make sure the container is available, client bug requires this to be separate
		2670	esrv_send_item (this, new_container);
		2671
		2672	new_container->flag [FLAG_APPLIED] = true;
		2673	container = new_container;
		2674
		2675	// client needs flag change
		2676	esrv_update_item (UPD_FLAGS, this, new_container);
		2677	esrv_send_inventory (this, new_container);
		2678	play_sound (sound_find ("chest_open"));
		2679	}
		2680	// else if (!old_container->env && contr && contr->ns)
		2681	// contr->ns->floorbox_reset ();
		2682	}
		2683
		2684	object *
		2685	object::force_find (const shstr name)
		2686	{
		2687	/* cycle through his inventory to look for the MARK we want to
		2688	* place
		2689	*/
		2690	for (object *tmp = inv; tmp; tmp = tmp->below)
		2691	if (tmp->type == FORCE && tmp->slaying == name)
		2692	return splay (tmp);
		2693
		2694	return 0;
		2695	}
		2696
		2697	void
		2698	object::force_add (const shstr name, int duration)
		2699	{
		2700	if (object *force = force_find (name))
		2701	force->destroy ();
		2702
		2703	object *force = get_archetype (FORCE_NAME);
		2704
		2705	force->slaying = name;
		2706	force->stats.food = 1;
		2707	force->speed_left = -1.f;
		2708
		2709	force->set_speed (duration ? 1.f / duration : 0.f);
		2710	force->flag [FLAG_IS_USED_UP] = true;
		2711	force->flag [FLAG_APPLIED] = true;
		2712
		2713	insert (force);
		2714	}
		2715
		2716	void
		2717	object::play_sound (faceidx sound)
		2718	{
		2719	if (!sound)
		2720	return;
		2721
		2722	if (flag [FLAG_REMOVED])
		2723	return;
		2724
		2725	if (env)
		2726	{
		2727	if (object *pl = in_player ())
		2728	pl->contr->play_sound (sound);
		2729	}
		2730	else
		2731	map->play_sound (sound, x, y);
		2732	}
		2733

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