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Comparing deliantra/server/common/object.C (file contents):
Revision 1.62 by root, Mon Dec 11 23:35:37 2006 UTC vs.
Revision 1.234 by root, Tue May 6 18:47:52 2008 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
10	(at your option) any later version.	11	* (at your option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
20		21	* The authors can be reached via e-mail to <support@deliantra.net>
21	The authors can be reached via e-mail at <crossfire@schmorp.de>
22	*/	22	*/
23		23
24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
25	sub/add_weight will transcend the environment updating the carrying
26	variable. */
27	#include <global.h>	24	#include <global.h>
28	#include <stdio.h>	25	#include <stdio.h>
29	#include <sys/types.h>	26	#include <sys/types.h>
30	#include <sys/uio.h>	27	#include <sys/uio.h>
31	#include <object.h>	28	#include <object.h>
32	#include <funcpoint.h>	29	#include <sproto.h>
33	#include <loader.h>	30	#include <loader.h>
34		31
35	int nrofallocobjects = 0;	32	#include <bitset>
36	static UUID uuid;	33
		34	UUID UUID::cur;
		35	static uint64_t seq_next_save;
37	const uint64 UUID_SKIP = 1<<19;	36	static const uint64 UUID_GAP = 1<<19;
38		37
39	object *active_objects; /* List of active objects that need to be processed */	38	objectvec objects;
		39	activevec actives;
40		40
41	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,	41	short freearr_x[SIZEOFFREE] = {
		42	0,
		43	0, 1, 1, 1, 0, -1, -1, -1,
		44	0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
42	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1	45	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
43	};	46	};
44	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,	47	short freearr_y[SIZEOFFREE] = {
		48	0,
		49	-1, -1, 0, 1, 1, 1, 0, -1,
		50	-2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
45	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3	51	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
46	};	52	};
47	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,	53	int maxfree[SIZEOFFREE] = {
		54	0,
		55	9, 10, 13, 14, 17, 18, 21, 22,
		56	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
48	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49	57	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
49	};	58	};
50	int freedir[SIZEOFFREE] = {	59	int freedir[SIZEOFFREE] = {
51	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,	60	0,
		61	1, 2, 3, 4, 5, 6, 7, 8,
		62	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
52	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8	63	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
53	};	64	};
54		65
55	static void	66	static void
56	write_uuid (void)	67	write_uuid (uval64 skip, bool sync)
57	{	68	{
58	char filename1[MAX_BUF], filename2[MAX_BUF];	69	CALL_BEGIN (2);
59		70	CALL_ARG_SV (newSVval64 (skip));
60	sprintf (filename1, "%s/uuid", settings.localdir);	71	CALL_ARG_SV (boolSV (sync));
61	sprintf (filename2, "%s/uuid~", settings.localdir);	72	CALL_CALL ("cf::write_uuid", G_DISCARD);
62		73	CALL_END;
63	FILE *fp;
64
65	if (!(fp = fopen (filename2, "w")))
66	{
67	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
68	return;
69	}
70
71	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
72	fclose (fp);
73	rename (filename2, filename1);
74	}	74	}
75		75
76	static void	76	static void
77	read_uuid (void)	77	read_uuid (void)
78	{	78	{
79	char filename[MAX_BUF];	79	char filename[MAX_BUF];
80		80
81	sprintf (filename, "%s/uuid", settings.localdir);	81	sprintf (filename, "%s/uuid", settings.localdir);
		82
		83	seq_next_save = 0;
82		84
83	FILE *fp;	85	FILE *fp;
84		86
85	if (!(fp = fopen (filename, "r")))	87	if (!(fp = fopen (filename, "r")))
86	{	88	{
87	if (errno == ENOENT)	89	if (errno == ENOENT)
88	{	90	{
89	LOG (llevInfo, "RESET uid to 1\n");	91	LOG (llevInfo, "RESET uid to 1\n");
90	uuid.seq = 0;	92	UUID::cur.seq = 0;
91	write_uuid ();	93	write_uuid (UUID_GAP, true);
92	return;	94	return;
93	}	95	}
94		96
95	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
96	_exit (1);	98	_exit (1);
97	}	99	}
98		100
99	int version;	101	UUID::BUF buf;
100	unsigned long long uid;	102	buf[0] = 0;
101	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	103	fgets (buf, sizeof (buf), fp);
		104
		105	if (!UUID::cur.parse (buf))
102	{	106	{
103	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	107	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
104	_exit (1);	108	_exit (1);
105	}	109	}
106		110
107	uuid.seq = uid;	111	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
108	write_uuid ();	112
109	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);	113	write_uuid (UUID_GAP, true);
110	fclose (fp);	114	fclose (fp);
111	}	115	}
112		116
113	UUID	117	UUID
114	gen_uuid ()	118	UUID::gen ()
115	{	119	{
116	UUID uid;	120	UUID uid;
117		121
118	uid.seq = ++uuid.seq;	122	uid.seq = ++cur.seq;
119		123
120	if (!(uuid.seq & (UUID_SKIP - 1)))	124	if (expect_false (cur.seq >= seq_next_save))
121	write_uuid ();	125	{
		126	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		127	write_uuid (UUID_GAP, false);
		128	}
		129
122		130
123	return uid;	131	return uid;
124	}	132	}
125		133
126	void	134	void
127	init_uuid ()	135	UUID::init ()
128	{	136	{
129	read_uuid ();	137	read_uuid ();
130	}	138	}
131		139
132	/* 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. */
133	static int	141	static bool
134	compare_ob_value_lists_one (const object *wants, const object *has)	142	compare_ob_value_lists_one (const object *wants, const object *has)
135	{	143	{
136	key_value *wants_field;
137
138	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	144	/* n-squared behaviour (see kv_get), but I'm hoping both
139	* objects with lists are rare, and lists stay short. If not, use a	145	* objects with lists are rare, and lists stay short. If not, use a
140	* different structure or at least keep the lists sorted...	146	* different structure or at least keep the lists sorted...
141	*/	147	*/
142		148
143	/* For each field in wants, */	149	/* For each field in wants, */
144	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	150	for (key_value *kv = wants->key_values; kv; kv = kv->next)
145	{	151	if (has->kv_get (kv->key) != kv->value)
146	key_value *has_field;	152	return false;
147
148	/* Look for a field in has with the same key. */
149	has_field = get_ob_key_link (has, wants_field->key);
150
151	if (has_field == NULL)
152	{
153	/* No field with that name. */
154	return FALSE;
155	}
156
157	/* Found the matching field. */
158	if (has_field->value != wants_field->value)
159	{
160	/* Values don't match, so this half of the comparison is false. */
161	return FALSE;
162	}
163
164	/* If we get here, we found a match. Now for the next field in wants. */
165	}
166		153
167	/* If we get here, every field in wants has a matching field in has. */	154	/* If we get here, every field in wants has a matching field in has. */
168	return TRUE;	155	return true;
169	}	156	}
170		157
171	/* Returns TRUE if ob1 has the same key_values as ob2. */	158	/* Returns TRUE if ob1 has the same key_values as ob2. */
172	static int	159	static bool
173	compare_ob_value_lists (const object *ob1, const object *ob2)	160	compare_ob_value_lists (const object *ob1, const object *ob2)
174	{	161	{
175	/* However, there may be fields in has which aren't partnered in wants,	162	/* However, there may be fields in has which aren't partnered in wants,
176	* so we need to run the comparison *twice*. :(	163	* so we need to run the comparison *twice*. :(
177	*/	164	*/
178	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);	165	return compare_ob_value_lists_one (ob1, ob2)
		166	&& compare_ob_value_lists_one (ob2, ob1);
179	}	167	}
180		168
181	/* Function examines the 2 objects given to it, and returns true if	169	/* Function examines the 2 objects given to it, and returns true if
182	* they can be merged together.	170	* they can be merged together.
183	*	171	*
184	* Note that this function appears a lot longer than the macro it	172	* Note that this function appears a lot longer than the macro it
185	* replaces - this is mostly for clarity - a decent compiler should hopefully	173	* replaces - this is mostly for clarity - a decent compiler should hopefully
186	* reduce this to the same efficiency.	174	* reduce this to the same efficiency.
187	*	175	*
188	* Check nrof variable *before* calling CAN_MERGE()	176	* Check nrof variable *before* calling can_merge()
189	*	177	*
190	* Improvements made with merge: Better checking on potion, and also	178	* Improvements made with merge: Better checking on potion, and also
191	* check weight	179	* check weight
192	*/	180	*/
193
194	bool object::can_merge (object *ob1, object *ob2)	181	bool object::can_merge_slow (object *ob1, object *ob2)
195	{	182	{
196	/* A couple quicksanity checks */	183	/* A couple quicksanity checks */
197	if ((ob1 == ob2) || (ob1->type != ob2->type))	184	if (ob1 == ob2
		185	|| ob1->type != ob2->type
		186	|| ob1->speed != ob2->speed
		187	|| ob1->value != ob2->value
		188	|| ob1->name != ob2->name)
198	return 0;	189	return 0;
199		190
200	if (ob1->speed != ob2->speed)	191	/* Do not merge objects if nrof would overflow. First part checks
		192	* for unsigned overflow (2c), second part checks whether the result
		193	* would fit into a 32 bit signed int, which is often used to hold
		194	* nrof values.
		195	*/
		196	if (~ob1->nrof < ob2->nrof || ob1->nrof + ob2->nrof > (1UL << 31))
201	return 0;	197	return 0;
202		198
203	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
204	* value could not be stored in a sint32 (which unfortunately sometimes is
205	* used to store nrof).
206	*/
207	if (ob1->nrof + ob2->nrof >= 1UL << 31)
208	return 0;
209
210	/* If the objects have been identified, set the BEEN_APPLIED flag.	199	/* If the objects have been identified, set the BEEN_APPLIED flag.
211	* This is to the comparison of the flags below will be OK. We	200	* This is to the comparison of the flags below will be OK. We
212	* just can't ignore the been applied or identified flags, as they	201	* just can't ignore the been applied or identified flags, as they
213	* are not equal - just if it has been identified, the been_applied	202	* are not equal - just if it has been identified, the been_applied
214	* flags lose any meaning.	203	* flags lose any meaning.
215	*/	204	*/
216	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	205	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
217	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	206	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
218		207
219	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	208	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
220	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	209	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
221		210
222		211	if (ob1->arch->name != ob2->arch->name
223	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
224	* being locked in inventory should prevent merging.
225	* 0x4 in flags3 is CLIENT_SENT
226	*/
227	if ((ob1->arch != ob2->arch) ||
228	(ob1->flags[0] != ob2->flags[0]) ||
229	(ob1->flags[1] != ob2->flags[1]) ||
230	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
231	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
232	(ob1->name != ob2->name) ||	212	|| ob1->name != ob2->name
233	(ob1->title != ob2->title) ||	213	|| ob1->title != ob2->title
234	(ob1->msg != ob2->msg) ||	214	|| ob1->msg != ob2->msg
235	(ob1->weight != ob2->weight) ||	215	|| ob1->weight != ob2->weight
236	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
237	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
238	(ob1->attacktype != ob2->attacktype) ||	216	|| ob1->attacktype != ob2->attacktype
239	(ob1->magic != ob2->magic) ||	217	|| ob1->magic != ob2->magic
240	(ob1->slaying != ob2->slaying) ||	218	|| ob1->slaying != ob2->slaying
241	(ob1->skill != ob2->skill) ||	219	|| ob1->skill != ob2->skill
242	(ob1->value != ob2->value) ||	220	|| ob1->value != ob2->value
243	(ob1->animation_id != ob2->animation_id) ||	221	|| ob1->animation_id != ob2->animation_id
244	(ob1->client_type != ob2->client_type) ||	222	|| ob1->client_type != ob2->client_type
245	(ob1->materialname != ob2->materialname) ||	223	|| ob1->materialname != ob2->materialname
246	(ob1->lore != ob2->lore) ||	224	|| ob1->lore != ob2->lore
247	(ob1->subtype != ob2->subtype) ||	225	|| ob1->subtype != ob2->subtype
248	(ob1->move_type != ob2->move_type) ||	226	|| ob1->move_type != ob2->move_type
249	(ob1->move_block != ob2->move_block) ||	227	|| ob1->move_block != ob2->move_block
250	(ob1->move_allow != ob2->move_allow) ||	228	|| ob1->move_allow != ob2->move_allow
251	(ob1->move_on != ob2->move_on) ||	229	|| ob1->move_on != ob2->move_on
252	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))	230	|| ob1->move_off != ob2->move_off
		231	|| ob1->move_slow != ob2->move_slow
		232	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		233	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		234	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
253	return 0;	235	return 0;
254		236
		237	if ((ob1->flag ^ ob2->flag)
		238	.reset (FLAG_INV_LOCKED)
		239	.reset (FLAG_CLIENT_SENT)
		240	.reset (FLAG_REMOVED)
		241	.any ())
		242	return 0;
		243
255	/* This is really a spellbook check - really, we should	244	/* This is really a spellbook check - we should in general
256	* check all objects in the inventory.	245	* not merge objects with real inventories, as splitting them
		246	* is hard.
257	*/	247	*/
258	if (ob1->inv || ob2->inv)	248	if (ob1->inv || ob2->inv)
259	{	249	{
260	/* if one object has inventory but the other doesn't, not equiv */
261	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
262	return 0;
263
264	/* Now check to see if the two inventory objects could merge */
265	if (!CAN_MERGE (ob1->inv, ob2->inv))	250	if (!(ob1->inv && ob2->inv))
266	return 0;	251	return 0; /* inventories differ in length */
		252
		253	if (ob1->inv->below || ob2->inv->below)
		254	return 0; /* more than one object in inv */
		255
		256	if (!object::can_merge (ob1->inv, ob2->inv))
		257	return 0; /* inventory objects differ */
267		258
268	/* inventory ok - still need to check rest of this object to see	259	/* inventory ok - still need to check rest of this object to see
269	* if it is valid.	260	* if it is valid.
270	*/	261	*/
271	}	262	}
…		…
279		270
280	/* Note sure why the following is the case - either the object has to	271	/* Note sure why the following is the case - either the object has to
281	* be animated or have a very low speed. Is this an attempted monster	272	* be animated or have a very low speed. Is this an attempted monster
282	* check?	273	* check?
283	*/	274	*/
284	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	275	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
285	return 0;	276	return 0;
286		277
287	switch (ob1->type)	278	switch (ob1->type)
288	{	279	{
289	case SCROLL:	280	case SCROLL:
290	if (ob1->level != ob2->level)	281	if (ob1->level != ob2->level)
291	return 0;	282	return 0;
292	break;	283	break;
293	}	284	}
294		285
295	if (ob1->key_values != NULL || ob2->key_values != NULL)	286	if (ob1->key_values || ob2->key_values)
296	{	287	{
297	/* At least one of these has key_values. */	288	/* At least one of these has key_values. */
298	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	289	if ((!ob1->key_values) != (!ob2->key_values))
299	/* One has fields, but the other one doesn't. */	290	return 0; /* One has fields, but the other one doesn't. */
		291
		292	if (!compare_ob_value_lists (ob1, ob2))
300	return 0;	293	return 0;
301	else if (!compare_ob_value_lists (ob1, ob2))
302	return 0;
303	}	294	}
304		295
305	//TODO: generate an event or call into perl for additional checks
306	if (ob1->self || ob2->self)	296	if (ob1->self || ob2->self)
307	{	297	{
308	ob1->optimise ();	298	ob1->optimise ();
309	ob2->optimise ();	299	ob2->optimise ();
310		300
311	if (ob1->self || ob2->self)	301	if (ob1->self || ob2->self)
		302	{
		303	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		304	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		305
		306	if (k1 != k2)
312	return 0;	307	return 0;
		308
		309	if (k1 == 0)
		310	return 1;
		311
		312	if (!cfperl_can_merge (ob1, ob2))
		313	return 0;
		314	}
313	}	315	}
314		316
315	/* Everything passes, must be OK. */	317	/* Everything passes, must be OK. */
316	return 1;	318	return 1;
317	}	319	}
318		320
		321	// find player who can see this object
		322	object *
		323	object::visible_to () const
		324	{
		325	if (client_visible () && !flag [FLAG_REMOVED])
		326	{
		327	// see if we are in a container of sorts
		328	if (env)
		329	{
		330	// the player inventory itself is always visible
		331	if (env->type == PLAYER)
		332	return env;
		333
		334	// else a player could have our env open
		335	object *envest = env->outer_env ();
		336
		337	// the player itself is always on a map, so we will find him here
		338	// even if our inv is in a player.
		339	if (envest->is_on_map ())
		340	if (object *pl = envest->ms ().player ())
		341	if (pl->container == env)
		342	return pl;
		343	}
		344	else
		345	{
		346	// maybe there is a player standing on the same mapspace
		347	// this will catch the case where "this" is a player
		348	if (object *pl = ms ().player ())
		349	if (!pl->container || this == pl->container)
		350	return pl;
		351	}
		352	}
		353
		354	return 0;
		355	}
		356
		357	// adjust weight per container type ("of holding")
		358	static sint32
		359	weight_adjust_for (object *op, sint32 weight)
		360	{
		361	return op->type == CONTAINER
		362	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		363	: weight;
		364	}
		365
319	/*	366	/*
		367	* adjust_weight(object, weight) adds the specified weight to an object,
		368	* and also updates how much the environment(s) is/are carrying.
		369	*/
		370	static void
		371	adjust_weight (object *op, sint32 weight)
		372	{
		373	while (op)
		374	{
		375	// adjust by actual difference to account for rounding errors
		376	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		377	weight = weight_adjust_for (op, op->carrying)
		378	- weight_adjust_for (op, op->carrying - weight);
		379
		380	if (!weight)
		381	return;
		382
		383	op->carrying += weight;
		384
		385	if (object *pl = op->visible_to ())
		386	if (pl != op) // player is handled lazily
		387	esrv_update_item (UPD_WEIGHT, pl, op);
		388
		389	op = op->env;
		390	}
		391	}
		392
		393	/*
320	* sum_weight() is a recursive function which calculates the weight	394	* this is a recursive function which calculates the weight
321	* an object is carrying. It goes through in figures out how much	395	* an object is carrying. It goes through op and figures out how much
322	* containers are carrying, and sums it up.	396	* containers are carrying, and sums it up.
323	*/	397	*/
324	long	398	void
325	sum_weight (object *op)	399	object::update_weight ()
326	{	400	{
327	long sum;	401	sint32 sum = 0;
328	object *inv;
329		402
330	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	403	for (object *op = inv; op; op = op->below)
331	{	404	{
332	if (inv->inv)	405	if (op->inv)
333	sum_weight (inv);	406	op->update_weight ();
334	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	407
		408	sum += op->total_weight ();
		409	}
		410
		411	sum = weight_adjust_for (this, sum);
		412
		413	if (sum != carrying)
335	}	414	{
336
337	if (op->type == CONTAINER && op->stats.Str)
338	sum = (sum * (100 - op->stats.Str)) / 100;
339
340	if (op->carrying != sum)
341	op->carrying = sum;	415	carrying = sum;
342		416
343	return sum;	417	if (object *pl = visible_to ())
		418	if (pl != this) // player is handled lazily
		419	esrv_update_item (UPD_WEIGHT, pl, this);
		420	}
344	}	421	}
345		422
346	/**	423	/*
347	* Return the outermost environment object for a given object.	424	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
348	*/	425	*/
349
350	object *
351	object_get_env_recursive (object *op)
352	{
353	while (op->env != NULL)
354	op = op->env;
355	return op;
356	}
357
358	/*
359	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
360	* a better check. We basically keeping traversing up until we can't
361	* or find a player.
362	*/
363
364	object *
365	is_player_inv (object *op)
366	{
367	for (; op != NULL && op->type != PLAYER; op = op->env)
368	if (op->env == op)
369	op->env = NULL;
370	return op;
371	}
372
373	/*
374	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
375	* Some error messages.
376	* The result of the dump is stored in the static global errmsg array.
377	*/
378
379	char *	426	char *
380	dump_object (object *op)	427	dump_object (object *op)
381	{	428	{
382	if (!op)	429	if (!op)
383	return strdup ("[NULLOBJ]");	430	return strdup ("[NULLOBJ]");
384		431
385	object_freezer freezer;	432	object_freezer freezer;
386	save_object (freezer, op, 3);	433	op->write (freezer);
387	return freezer.as_string ();	434	return freezer.as_string ();
388	}	435	}
389		436
390	/*	437	/*
391	* get_nearest_part(multi-object, object 2) returns the part of the	438	* get_nearest_part(multi-object, object 2) returns the part of the
392	* multi-object 1 which is closest to the second object.	439	* multi-object 1 which is closest to the second object.
393	* If it's not a multi-object, it is returned.	440	* If it's not a multi-object, it is returned.
394	*/	441	*/
395
396	object *	442	object *
397	get_nearest_part (object *op, const object *pl)	443	get_nearest_part (object *op, const object *pl)
398	{	444	{
399	object *tmp, *closest;	445	object *tmp, *closest;
400	int last_dist, i;	446	int last_dist, i;
401		447
402	if (op->more == NULL)	448	if (!op->more)
403	return op;	449	return op;
		450
404	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	451	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		452	tmp;
		453	tmp = tmp->more)
405	if ((i = distance (tmp, pl)) < last_dist)	454	if ((i = distance (tmp, pl)) < last_dist)
406	closest = tmp, last_dist = i;	455	closest = tmp, last_dist = i;
		456
407	return closest;	457	return closest;
408	}	458	}
409		459
410	/*	460	/*
411	* Returns the object which has the count-variable equal to the argument.	461	* Returns the object which has the count-variable equal to the argument.
		462	* VERRRY slow.
412	*/	463	*/
413
414	object *	464	object *
415	find_object (tag_t i)	465	find_object (tag_t i)
416	{	466	{
417	for (object *op = object::first; op; op = op->next)	467	for_all_objects (op)
418	if (op->count == i)	468	if (op->count == i)
419	return op;	469	return op;
420		470
421	return 0;	471	return 0;
422	}	472	}
423		473
424	/*	474	/*
425	* Returns the first object which has a name equal to the argument.	475	* Returns the first object which has a name equal to the argument.
426	* Used only by the patch command, but not all that useful.	476	* Used only by the patch command, but not all that useful.
427	* Enables features like "patch <name-of-other-player> food 999"	477	* Enables features like "patch <name-of-other-player> food 999"
428	*/	478	*/
429
430	object *	479	object *
431	find_object_name (const char *str)	480	find_object_name (const char *str)
432	{	481	{
433	shstr_cmp str_ (str);	482	shstr_cmp str_ (str);
434	object *op;	483	object *op;
435		484
436	for (op = object::first; op != NULL; op = op->next)	485	for_all_objects (op)
437	if (op->name == str_)	486	if (op->name == str_)
438	break;	487	break;
439		488
440	return op;	489	return op;
441	}	490	}
442		491
443	void
444	free_all_object_data ()
445	{
446	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
447	}
448
449	/*	492	/*
450	* Sets the owner and sets the skill and exp pointers to owner's current	493	* Sets the owner and sets the skill and exp pointers to owner's current
451	* skill and experience objects.	494	* skill and experience objects.
		495	* ACTUALLY NO! investigate! TODO
452	*/	496	*/
453	void	497	void
454	object::set_owner (object *owner)	498	object::set_owner (object *owner)
455	{	499	{
		500	// allow objects which own objects
456	if (!owner)	501	if (owner)
457	return;
458
459	/* next line added to allow objects which own objects */
460	/* Add a check for ownercounts in here, as I got into an endless loop
461	* with the fireball owning a poison cloud which then owned the
462	* fireball. I believe that was caused by one of the objects getting
463	* freed and then another object replacing it. Since the ownercounts
464	* didn't match, this check is valid and I believe that cause is valid.
465	*/
466	while (owner->owner)	502	while (owner->owner)
467	owner = owner->owner;	503	owner = owner->owner;
		504
		505	if (flag [FLAG_FREED])
		506	{
		507	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		508	return;
		509	}
468		510
469	this->owner = owner;	511	this->owner = owner;
		512	}
		513
		514	int
		515	object::slottype () const
		516	{
		517	if (type == SKILL)
		518	{
		519	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		520	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		521	}
		522	else
		523	{
		524	if (slot [body_combat].info) return slot_combat;
		525	if (slot [body_range ].info) return slot_ranged;
		526	}
		527
		528	return slot_none;
		529	}
		530
		531	bool
		532	object::change_weapon (object *ob)
		533	{
		534	if (current_weapon == ob)
		535	return true;
		536
		537	if (chosen_skill)
		538	chosen_skill->flag [FLAG_APPLIED] = false;
		539
		540	current_weapon = ob;
		541	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		542
		543	if (chosen_skill)
		544	chosen_skill->flag [FLAG_APPLIED] = true;
		545
		546	update_stats ();
		547
		548	if (ob)
		549	{
		550	// now check wether any body locations became invalid, in which case
		551	// we cannot apply the weapon at the moment.
		552	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		553	if (slot[i].used < 0)
		554	{
		555	current_weapon = chosen_skill = 0;
		556	update_stats ();
		557
		558	new_draw_info_format (NDI_UNIQUE, 0, this,
		559	"You try to balance all your items at once, "
		560	"but the %s is just too much for your body. "
		561	"[You need to unapply some items first.]", &ob->name);
		562	return false;
		563	}
		564
		565	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		566	}
		567	else
		568	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		569
		570	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		571	{
		572	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		573	&name, ob->debug_desc ());
		574	return false;
		575	}
		576
		577	return true;
470	}	578	}
471		579
472	/* Zero the key_values on op, decrementing the shared-string	580	/* Zero the key_values on op, decrementing the shared-string
473	* refcounts and freeing the links.	581	* refcounts and freeing the links.
474	*/	582	*/
475	static void	583	static void
476	free_key_values (object *op)	584	free_key_values (object *op)
477	{	585	{
478	for (key_value *i = op->key_values; i != 0;)	586	for (key_value *i = op->key_values; i; )
479	{	587	{
480	key_value *next = i->next;	588	key_value *next = i->next;
481	delete i;	589	delete i;
482		590
483	i = next;	591	i = next;
484	}	592	}
485		593
486	op->key_values = 0;	594	op->key_values = 0;
487	}	595	}
488		596
489	void object::clear ()
490	{
491	attachable_base::clear ();
492
493	free_key_values (this);
494
495	owner = 0;
496	name = 0;
497	name_pl = 0;
498	title = 0;
499	race = 0;
500	slaying = 0;
501	skill = 0;
502	msg = 0;
503	lore = 0;
504	custom_name = 0;
505	materialname = 0;
506	contr = 0;
507	below = 0;
508	above = 0;
509	inv = 0;
510	container = 0;
511	env = 0;
512	more = 0;
513	head = 0;
514	map = 0;
515	active_next = 0;
516	active_prev = 0;
517
518	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
519
520	SET_FLAG (this, FLAG_REMOVED);
521
522	/* What is not cleared is next, prev, and count */
523
524	expmul = 1.0;
525	face = blank_face;
526
527	if (settings.casting_time)
528	casting_time = -1;
529	}
530
531	void object::clone (object *destination)
532	{
533	*(object_copy *)destination = *this;
534	*(object_pod *)destination = *this;
535
536	if (self || cb)
537	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
538	}
539
540	/*	597	/*
541	* copy object first frees everything allocated by the second object,	598	* copy_to first frees everything allocated by the dst object,
542	* and then copies the contends of the first object into the second	599	* and then copies the contents of itself into the second
543	* object, allocating what needs to be allocated. Basically, any	600	* object, allocating what needs to be allocated. Basically, any
544	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	601	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
545	* if the first object is freed, the pointers in the new object	602	* if the first object is freed, the pointers in the new object
546	* will point at garbage.	603	* will point at garbage.
547	*/	604	*/
548	void	605	void
549	copy_object (object *op2, object *op)	606	object::copy_to (object *dst)
550	{	607	{
551	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	608	dst->remove ();
552	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	609	*(object_copy *)dst = *this;
553		610	dst->flag [FLAG_REMOVED] = true;
554	op2->clone (op);
555
556	if (is_freed)
557	SET_FLAG (op, FLAG_FREED);
558
559	if (is_removed)
560	SET_FLAG (op, FLAG_REMOVED);
561
562	if (op2->speed < 0)
563	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
564		611
565	/* Copy over key_values, if any. */	612	/* Copy over key_values, if any. */
566	if (op2->key_values)	613	if (key_values)
567	{	614	{
568	key_value *tail = 0;	615	key_value *tail = 0;
569	key_value *i;
570
571	op->key_values = 0;	616	dst->key_values = 0;
572		617
573	for (i = op2->key_values; i; i = i->next)	618	for (key_value *i = key_values; i; i = i->next)
574	{	619	{
575	key_value *new_link = new key_value;	620	key_value *new_link = new key_value;
576		621
577	new_link->next = 0;	622	new_link->next = 0;
578	new_link->key = i->key;	623	new_link->key = i->key;
579	new_link->value = i->value;	624	new_link->value = i->value;
580		625
581	/* Try and be clever here, too. */	626	/* Try and be clever here, too. */
582	if (!op->key_values)	627	if (!dst->key_values)
583	{	628	{
584	op->key_values = new_link;	629	dst->key_values = new_link;
585	tail = new_link;	630	tail = new_link;
586	}	631	}
587	else	632	else
588	{	633	{
589	tail->next = new_link;	634	tail->next = new_link;
590	tail = new_link;	635	tail = new_link;
591	}	636	}
592	}	637	}
593	}	638	}
594		639
595	update_ob_speed (op);	640	if (speed < 0)
		641	dst->speed_left -= rndm ();
		642
		643	dst->set_speed (dst->speed);
		644	}
		645
		646	void
		647	object::instantiate ()
		648	{
		649	if (!uuid.seq) // HACK
		650	uuid = UUID::gen ();
		651
		652	speed_left = -0.1f;
		653	/* copy the body_info to the body_used - this is only really
		654	* need for monsters, but doesn't hurt to do it for everything.
		655	* by doing so, when a monster is created, it has good starting
		656	* values for the body_used info, so when items are created
		657	* for it, they can be properly equipped.
		658	*/
		659	for (int i = NUM_BODY_LOCATIONS; i--; )
		660	slot[i].used = slot[i].info;
		661
		662	attachable::instantiate ();
		663	}
		664
		665	object *
		666	object::clone ()
		667	{
		668	object *neu = create ();
		669	copy_to (neu);
		670	neu->map = map; // not copied by copy_to
		671	return neu;
596	}	672	}
597		673
598	/*	674	/*
599	* If an object with the IS_TURNABLE() flag needs to be turned due	675	* If an object with the IS_TURNABLE() flag needs to be turned due
600	* to the closest player being on the other side, this function can	676	* to the closest player being on the other side, this function can
601	* be called to update the face variable, _and_ how it looks on the map.	677	* be called to update the face variable, _and_ how it looks on the map.
602	*/	678	*/
603
604	void	679	void
605	update_turn_face (object *op)	680	update_turn_face (object *op)
606	{	681	{
607	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	682	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
608	return;	683	return;
		684
609	SET_ANIMATION (op, op->direction);	685	SET_ANIMATION (op, op->direction);
610	update_object (op, UP_OBJ_FACE);	686	update_object (op, UP_OBJ_FACE);
611	}	687	}
612		688
613	/*	689	/*
614	* Updates the speed of an object. If the speed changes from 0 to another	690	* Updates the speed of an object. If the speed changes from 0 to another
615	* value, or vice versa, then add/remove the object from the active list.	691	* value, or vice versa, then add/remove the object from the active list.
616	* This function needs to be called whenever the speed of an object changes.	692	* This function needs to be called whenever the speed of an object changes.
617	*/	693	*/
618	void	694	void
619	update_ob_speed (object *op)	695	object::set_speed (float speed)
620	{	696	{
621	extern int arch_init;	697	if (flag [FLAG_FREED] && speed)
622
623	/* No reason putting the archetypes objects on the speed list,
624	* since they never really need to be updated.
625	*/
626
627	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
628	{	698	{
629	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	699	LOG (llevError, "Object %s is freed but has speed.\n", &name);
630	#ifdef MANY_CORES
631	abort ();
632	#else
633	op->speed = 0;	700	speed = 0;
634	#endif
635	}
636
637	if (arch_init)
638	return;
639
640	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
641	{	701	}
642	/* If already on active list, don't do anything */
643	if (op->active_next || op->active_prev || op == active_objects)
644	return;
645		702
646	/* process_events() expects us to insert the object at the beginning	703	this->speed = speed;
647	* of the list. */
648	op->active_next = active_objects;
649		704
650	if (op->active_next != NULL)	705	if (has_active_speed ())
651	op->active_next->active_prev = op;	706	activate ();
652
653	active_objects = op;
654	}
655	else	707	else
656	{	708	deactivate ();
657	/* If not on the active list, nothing needs to be done */
658	if (!op->active_next && !op->active_prev && op != active_objects)
659	return;
660
661	if (op->active_prev == NULL)
662	{
663	active_objects = op->active_next;
664
665	if (op->active_next != NULL)
666	op->active_next->active_prev = NULL;
667	}
668	else
669	{
670	op->active_prev->active_next = op->active_next;
671
672	if (op->active_next)
673	op->active_next->active_prev = op->active_prev;
674	}
675
676	op->active_next = NULL;
677	op->active_prev = NULL;
678	}
679	}	709	}
680		710
681	/* This function removes object 'op' from the list of active
682	* objects.
683	* This should only be used for style maps or other such
684	* reference maps where you don't want an object that isn't
685	* in play chewing up cpu time getting processed.
686	* The reverse of this is to call update_ob_speed, which
687	* will do the right thing based on the speed of the object.
688	*/
689	void
690	remove_from_active_list (object *op)
691	{
692	/* If not on the active list, nothing needs to be done */
693	if (!op->active_next && !op->active_prev && op != active_objects)
694	return;
695
696	if (op->active_prev == NULL)
697	{
698	active_objects = op->active_next;
699	if (op->active_next != NULL)
700	op->active_next->active_prev = NULL;
701	}
702	else
703	{
704	op->active_prev->active_next = op->active_next;
705	if (op->active_next)
706	op->active_next->active_prev = op->active_prev;
707	}
708	op->active_next = NULL;
709	op->active_prev = NULL;
710	}
711
712	/*	711	/*
713	* update_object() updates the array which represents the map.	712	* update_object() updates the the map.
714	* It takes into account invisible objects (and represent squares covered	713	* It takes into account invisible objects (and represent squares covered
715	* by invisible objects by whatever is below them (unless it's another	714	* by invisible objects by whatever is below them (unless it's another
716	* invisible object, etc...)	715	* invisible object, etc...)
717	* If the object being updated is beneath a player, the look-window	716	* If the object being updated is beneath a player, the look-window
718	* of that player is updated (this might be a suboptimal way of	717	* of that player is updated (this might be a suboptimal way of
719	* updating that window, though, since update_object() is called _often_)	718	* updating that window, though, since update_object() is called _often_)
720	*	719	*
721	* action is a hint of what the caller believes need to be done.	720	* action is a hint of what the caller believes need to be done.
722	* For example, if the only thing that has changed is the face (due to
723	* an animation), we don't need to call update_position until that actually
724	* comes into view of a player. OTOH, many other things, like addition/removal
725	* of walls or living creatures may need us to update the flags now.
726	* current action are:	721	* current action are:
727	* UP_OBJ_INSERT: op was inserted	722	* UP_OBJ_INSERT: op was inserted
728	* UP_OBJ_REMOVE: op was removed	723	* UP_OBJ_REMOVE: op was removed
729	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	724	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
730	* as that is easier than trying to look at what may have changed.	725	* as that is easier than trying to look at what may have changed.
731	* UP_OBJ_FACE: only the objects face has changed.	726	* UP_OBJ_FACE: only the objects face has changed.
732	*/	727	*/
733
734	void	728	void
735	update_object (object *op, int action)	729	update_object (object *op, int action)
736	{	730	{
737	int update_now = 0, flags;	731	if (!op)
738	MoveType move_on, move_off, move_block, move_slow;
739
740	if (op == NULL)
741	{	732	{
742	/* this should never happen */	733	/* this should never happen */
743	LOG (llevDebug, "update_object() called for NULL object.\n");	734	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
744	return;	735	return;
745	}	736	}
746		737
747	if (op->env != NULL)	738	if (!op->is_on_map ())
748	{	739	{
749	/* Animation is currently handled by client, so nothing	740	/* Animation is currently handled by client, so nothing
750	* to do in this case.	741	* to do in this case.
751	*/	742	*/
752	return;	743	return;
753	}	744	}
754		745
755	/* If the map is saving, don't do anything as everything is
756	* going to get freed anyways.
757	*/
758	if (!op->map || op->map->in_memory == MAP_SAVING)
759	return;
760
761	/* make sure the object is within map boundaries */	746	/* make sure the object is within map boundaries */
762	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	747	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
763	{	748	{
764	LOG (llevError, "update_object() called for object out of map!\n");	749	LOG (llevError, "update_object() called for object out of map!\n");
765	#ifdef MANY_CORES	750	#ifdef MANY_CORES
766	abort ();	751	abort ();
767	#endif	752	#endif
768	return;	753	return;
769	}	754	}
770		755
771	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	756	mapspace &m = op->ms ();
772	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
773	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
774	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
775	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
776	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
777		757
		758	if (!(m.flags_ & P_UPTODATE))
		759	/* nop */;
778	if (action == UP_OBJ_INSERT)	760	else if (action == UP_OBJ_INSERT)
779	{	761	{
		762	// this is likely overkill, TODO: revisit (schmorp)
780	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	763	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
781	update_now = 1;
782
783	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	764	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
784	update_now = 1;	765	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
785		766	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		767	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
786	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	768	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
787	update_now = 1;
788
789	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
790	update_now = 1;
791
792	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
793	update_now = 1;
794
795	if ((move_on | op->move_on) != move_on)	769	|| (m.move_on | op->move_on ) != m.move_on
796	update_now = 1;
797
798	if ((move_off | op->move_off) != move_off)	770	|| (m.move_off | op->move_off ) != m.move_off
799	update_now = 1;	771	|| (m.move_slow | op->move_slow) != m.move_slow
800
801	/* This isn't perfect, but I don't expect a lot of objects to	772	/* This isn't perfect, but I don't expect a lot of objects to
802	* to have move_allow right now.	773	* to have move_allow right now.
803	*/	774	*/
804	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	775	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
805	update_now = 1;	776	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
806		777	m.flags_ = 0;
807	if ((move_slow | op->move_slow) != move_slow)
808	update_now = 1;
809	}	778	}
810
811	/* if the object is being removed, we can't make intelligent	779	/* if the object is being removed, we can't make intelligent
812	* decisions, because remove_ob can't really pass the object	780	* decisions, because remove_ob can't really pass the object
813	* that is being removed.	781	* that is being removed.
814	*/	782	*/
815	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	783	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
816	update_now = 1;	784	m.flags_ = 0;
817	else if (action == UP_OBJ_FACE)	785	else if (action == UP_OBJ_FACE)
818	/* Nothing to do for that case */ ;	786	/* Nothing to do for that case */ ;
819	else	787	else
820	LOG (llevError, "update_object called with invalid action: %d\n", action);	788	LOG (llevError, "update_object called with invalid action: %d\n", action);
821		789
822	if (update_now)
823	{
824	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
825	update_position (op->map, op->x, op->y);
826	}
827
828	if (op->more != NULL)	790	if (op->more)
829	update_object (op->more, action);	791	update_object (op->more, action);
830	}
831
832	object::vector object::mortals;
833	object::vector object::objects; // not yet used
834	object *object::first;
835
836	void object::free_mortals ()
837	{
838	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
839	if ((*i)->refcnt)
840	++i; // further delay freeing
841	else
842	{
843	delete *i;
844	mortals.erase (i);
845	}
846	}	792	}
847		793
848	object::object ()	794	object::object ()
849	{	795	{
850	SET_FLAG (this, FLAG_REMOVED);	796	SET_FLAG (this, FLAG_REMOVED);
…		…
853	face = blank_face;	799	face = blank_face;
854	}	800	}
855		801
856	object::~object ()	802	object::~object ()
857	{	803	{
		804	unlink ();
		805
858	free_key_values (this);	806	free_key_values (this);
859	}	807	}
860		808
		809	static int object_count;
		810
861	void object::link ()	811	void object::link ()
862	{	812	{
		813	assert (!index);//D
		814	uuid = UUID::gen ();
863	count = ++ob_count;	815	count = ++object_count;
864	uuid = gen_uuid ();
865		816
866	prev = 0;	817	refcnt_inc ();
867	next = object::first;	818	objects.insert (this);
868
869	if (object::first)
870	object::first->prev = this;
871
872	object::first = this;
873	}	819	}
874		820
875	void object::unlink ()	821	void object::unlink ()
876	{	822	{
877	if (this == object::first)	823	if (!index)
878	object::first = next;	824	return;
879		825
880	/* Remove this object from the list of used objects */	826	objects.erase (this);
881	if (prev) prev->next = next;	827	refcnt_dec ();
882	if (next) next->prev = prev;	828	}
883		829
884	prev = 0;	830	void
885	next = 0;	831	object::activate ()
		832	{
		833	/* If already on active list, don't do anything */
		834	if (active)
		835	return;
		836
		837	if (has_active_speed ())
		838	actives.insert (this);
		839	}
		840
		841	void
		842	object::activate_recursive ()
		843	{
		844	activate ();
		845
		846	for (object *op = inv; op; op = op->below)
		847	op->activate_recursive ();
		848	}
		849
		850	/* This function removes object 'op' from the list of active
		851	* objects.
		852	* This should only be used for style maps or other such
		853	* reference maps where you don't want an object that isn't
		854	* in play chewing up cpu time getting processed.
		855	* The reverse of this is to call update_ob_speed, which
		856	* will do the right thing based on the speed of the object.
		857	*/
		858	void
		859	object::deactivate ()
		860	{
		861	/* If not on the active list, nothing needs to be done */
		862	if (!active)
		863	return;
		864
		865	actives.erase (this);
		866	}
		867
		868	void
		869	object::deactivate_recursive ()
		870	{
		871	for (object *op = inv; op; op = op->below)
		872	op->deactivate_recursive ();
		873
		874	deactivate ();
		875	}
		876
		877	void
		878	object::set_flag_inv (int flag, int value)
		879	{
		880	for (object *op = inv; op; op = op->below)
		881	{
		882	op->flag [flag] = value;
		883	op->set_flag_inv (flag, value);
		884	}
		885	}
		886
		887	/*
		888	* Remove and free all objects in the inventory of the given object.
		889	* object.c ?
		890	*/
		891	void
		892	object::destroy_inv (bool drop_to_ground)
		893	{
		894	// need to check first, because the checks below might segfault
		895	// as we might be on an invalid mapspace and crossfire code
		896	// is too buggy to ensure that the inventory is empty.
		897	// corollary: if you create arrows etc. with stuff in its inventory,
		898	// cf will crash below with off-map x and y
		899	if (!inv)
		900	return;
		901
		902	/* Only if the space blocks everything do we not process -
		903	* if some form of movement is allowed, let objects
		904	* drop on that space.
		905	*/
		906	if (!drop_to_ground
		907	|| !map
		908	|| map->in_memory != MAP_ACTIVE
		909	|| map->nodrop
		910	|| ms ().move_block == MOVE_ALL)
		911	{
		912	while (inv)
		913	{
		914	inv->destroy_inv (false);
		915	inv->destroy ();
		916	}
		917	}
		918	else
		919	{ /* Put objects in inventory onto this space */
		920	while (inv)
		921	{
		922	object *op = inv;
		923
		924	if (op->flag [FLAG_STARTEQUIP]
		925	|| op->flag [FLAG_NO_DROP]
		926	|| op->type == RUNE
		927	|| op->type == TRAP
		928	|| op->flag [FLAG_IS_A_TEMPLATE]
		929	|| op->flag [FLAG_DESTROY_ON_DEATH])
		930	op->destroy (true);
		931	else
		932	map->insert (op, x, y);
		933	}
		934	}
886	}	935	}
887		936
888	object *object::create ()	937	object *object::create ()
889	{	938	{
890	object *op = new object;	939	object *op = new object;
891	op->link ();	940	op->link ();
892	return op;	941	return op;
893	}	942	}
894		943
895	/*	944	static struct freed_map : maptile
896	* free_object() frees everything allocated by an object, removes	945	{
897	* it from the list of used objects, and puts it on the list of	946	freed_map ()
898	* free objects. The IS_FREED() flag is set in the object.	947	{
899	* The object must have been removed by remove_ob() first for	948	path = "<freed objects map>";
900	* this function to succeed.	949	name = "/internal/freed_objects_map";
901	*	950	width = 3;
902	* If destroy_inventory is set, free inventory as well. Else drop items in	951	height = 3;
903	* inventory to the ground.	952	nodrop = 1;
904	*/	953
		954	alloc ();
		955	in_memory = MAP_ACTIVE;
		956	}
		957
		958	~freed_map ()
		959	{
		960	destroy ();
		961	}
		962	} freed_map; // freed objects are moved here to avoid crashes
		963
		964	void
		965	object::do_destroy ()
		966	{
		967	if (flag [FLAG_IS_LINKED])
		968	remove_button_link (this);
		969
		970	if (flag [FLAG_FRIENDLY])
		971	remove_friendly_object (this);
		972
		973	remove ();
		974
		975	attachable::do_destroy ();
		976
		977	deactivate ();
		978	unlink ();
		979
		980	flag [FLAG_FREED] = 1;
		981
		982	// hack to ensure that freed objects still have a valid map
		983	map = &freed_map;
		984	x = 1;
		985	y = 1;
		986
		987	if (more)
		988	{
		989	more->destroy ();
		990	more = 0;
		991	}
		992
		993	head = 0;
		994
		995	// clear those pointers that likely might cause circular references
		996	owner = 0;
		997	enemy = 0;
		998	attacked_by = 0;
		999	current_weapon = 0;
		1000	}
		1001
		1002	void
905	void object::destroy (bool destroy_inventory)	1003	object::destroy (bool destroy_inventory)
906	{	1004	{
907	if (QUERY_FLAG (this, FLAG_FREED))	1005	if (destroyed ())
908	return;	1006	return;
909		1007
910	if (QUERY_FLAG (this, FLAG_FRIENDLY))	1008	if (!is_head () && !head->destroyed ())
911	remove_friendly_object (this);
912
913	if (!QUERY_FLAG (this, FLAG_REMOVED))
914	remove_ob (this);
915
916	SET_FLAG (this, FLAG_FREED);
917
918	if (more)
919	{	1009	{
		1010	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
920	more->destroy (destroy_inventory);	1011	head->destroy (destroy_inventory);
921	more = 0;	1012	return;
922	}
923
924	if (inv)
925	{
926	/* Only if the space blocks everything do we not process -
927	* if some form of movement is allowed, let objects
928	* drop on that space.
929	*/
930	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
931	{
932	object *op = inv;
933
934	while (op)
935	{
936	object *tmp = op->below;
937	op->destroy (destroy_inventory);
938	op = tmp;
939	}
940	}
941	else
942	{ /* Put objects in inventory onto this space */
943	object *op = inv;
944
945	while (op)
946	{
947	object *tmp = op->below;
948
949	remove_ob (op);
950
951	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
952	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
953	free_object (op);
954	else
955	{
956	op->x = x;
957	op->y = y;
958	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
959	}
960
961	op = tmp;
962	}
963	}
964	}
965
966	// hack to ensure that freed objects still have a valid map
967	{
968	static maptile *freed_map; // freed objects are moved here to avoid crashes
969
970	if (!freed_map)
971	{
972	freed_map = new maptile;
973
974	freed_map->name = "/internal/freed_objects_map";
975	freed_map->width = 3;
976	freed_map->height = 3;
977
978	freed_map->allocate ();
979	}	1013	}
980		1014
981	map = freed_map;	1015	destroy_inv (!destroy_inventory);
982	x = 1;
983	y = 1;
984	}
985		1016
986	// clear those pointers that likely might have circular references to us	1017	if (is_head ())
987	owner = 0;	1018	if (sound_destroy)
988	enemy = 0;	1019	play_sound (sound_destroy);
989	attacked_by = 0;	1020	else if (flag [FLAG_MONSTER])
		1021	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
990		1022
991	// only relevant for players(?), but make sure of it anyways	1023	attachable::destroy ();
992	contr = 0;
993
994	/* Remove object from the active list */
995	speed = 0;
996	update_ob_speed (this);
997
998	unlink ();
999
1000	mortals.push_back (this);
1001	}	1024	}
1002		1025
1003	/*	1026	/* op->remove ():
1004	* sub_weight() recursively (outwards) subtracts a number from the
1005	* weight of an object (and what is carried by it's environment(s)).
1006	*/
1007	void
1008	sub_weight (object *op, signed long weight)
1009	{
1010	while (op != NULL)
1011	{
1012	if (op->type == CONTAINER)
1013	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1014
1015	op->carrying -= weight;
1016	op = op->env;
1017	}
1018	}
1019
1020	/* remove_ob(op):
1021	* This function removes the object op from the linked list of objects	1027	* This function removes the object op from the linked list of objects
1022	* which it is currently tied to. When this function is done, the	1028	* which it is currently tied to. When this function is done, the
1023	* object will have no environment. If the object previously had an	1029	* object will have no environment. If the object previously had an
1024	* environment, the x and y coordinates will be updated to	1030	* environment, the x and y coordinates will be updated to
1025	* the previous environment.	1031	* the previous environment.
1026	* Beware: This function is called from the editor as well!
1027	*/	1032	*/
1028	void	1033	void
1029	object::remove ()	1034	object::do_remove ()
1030	{	1035	{
1031	object *tmp, *last = 0;	1036	object *tmp, *last = 0;
1032	object *otmp;	1037	object *otmp;
1033		1038
1034	int check_walk_off;	1039	if (flag [FLAG_REMOVED])
1035
1036	if (QUERY_FLAG (this, FLAG_REMOVED))
1037	return;	1040	return;
1038		1041
1039	SET_FLAG (this, FLAG_REMOVED);	1042	INVOKE_OBJECT (REMOVE, this);
		1043
		1044	flag [FLAG_REMOVED] = true;
1040		1045
1041	if (more)	1046	if (more)
1042	more->remove ();	1047	more->remove ();
1043		1048
1044	/*	1049	/*
1045	* In this case, the object to be removed is in someones	1050	* In this case, the object to be removed is in someones
1046	* inventory.	1051	* inventory.
1047	*/	1052	*/
1048	if (env)	1053	if (env)
1049	{	1054	{
		1055	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
		1056	if (object *pl = visible_to ())
		1057	esrv_del_item (pl->contr, count);
		1058	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1059
		1060	adjust_weight (env, -total_weight ());
		1061
		1062	*(above ? &above->below : &env->inv) = below;
		1063
1050	if (nrof)	1064	if (below)
1051	sub_weight (env, weight * nrof);	1065	below->above = above;
1052	else	1066
1053	sub_weight (env, weight + carrying);	1067	/* we set up values so that it could be inserted into
		1068	* the map, but we don't actually do that - it is up
		1069	* to the caller to decide what we want to do.
		1070	*/
		1071	map = env->map;
		1072	x = env->x;
		1073	y = env->y;
		1074	above = 0;
		1075	below = 0;
		1076	env = 0;
1054		1077
1055	/* NO_FIX_PLAYER is set when a great many changes are being	1078	/* NO_FIX_PLAYER is set when a great many changes are being
1056	* made to players inventory. If set, avoiding the call	1079	* made to players inventory. If set, avoiding the call
1057	* to save cpu time.	1080	* to save cpu time.
1058	*/	1081	*/
1059	if ((otmp = is_player_inv (env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1082	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1060	fix_player (otmp);	1083	otmp->update_stats ();
1061
1062	if (above != NULL)
1063	above->below = below;
1064	else
1065	env->inv = below;
1066
1067	if (below != NULL)
1068	below->above = above;
1069
1070	/* we set up values so that it could be inserted into
1071	* the map, but we don't actually do that - it is up
1072	* to the caller to decide what we want to do.
1073	*/
1074	x = env->x, y = env->y;
1075	map = env->map;
1076	above = 0, below = 0;
1077	env = 0;
1078	}	1084	}
1079	else if (map)	1085	else if (map)
1080	{	1086	{
1081	/* Re did the following section of code - it looks like it had	1087	map->dirty = true;
1082	* lots of logic for things we no longer care about	1088	mapspace &ms = this->ms ();
		1089
		1090	if (object *pl = ms.player ())
1083	*/	1091	{
		1092	if (type == PLAYER) // this == pl(!)
		1093	{
		1094	// leaving a spot always closes any open container on the ground
		1095	if (container && !container->env)
		1096	// this causes spurious floorbox updates, but it ensures
		1097	// that the CLOSE event is being sent.
		1098	close_container ();
		1099
		1100	--map->players;
		1101	map->touch ();
		1102	}
		1103	else if (pl->container == this)
		1104	{
		1105	// removing a container should close it
		1106	close_container ();
		1107	}
		1108
		1109	esrv_del_item (pl->contr, count);
		1110	}
1084		1111
1085	/* link the object above us */	1112	/* link the object above us */
1086	if (above)	1113	if (above)
1087	above->below = below;	1114	above->below = below;
1088	else	1115	else
1089	SET_MAP_TOP (map, x, y, below); /* we were top, set new top */	1116	ms.top = below; /* we were top, set new top */
1090		1117
1091	/* Relink the object below us, if there is one */	1118	/* Relink the object below us, if there is one */
1092	if (below)	1119	if (below)
1093	below->above = above;	1120	below->above = above;
1094	else	1121	else
…		…
1096	/* Nothing below, which means we need to relink map object for this space	1123	/* Nothing below, which means we need to relink map object for this space
1097	* use translated coordinates in case some oddness with map tiling is	1124	* use translated coordinates in case some oddness with map tiling is
1098	* evident	1125	* evident
1099	*/	1126	*/
1100	if (GET_MAP_OB (map, x, y) != this)	1127	if (GET_MAP_OB (map, x, y) != this)
1101	{
1102	char *dump = dump_object (this);
1103	LOG (llevError,
1104	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);	1128	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 ());
1105	free (dump);
1106	dump = dump_object (GET_MAP_OB (map, x, y));
1107	LOG (llevError, "%s\n", dump);
1108	free (dump);
1109	}
1110		1129
1111	SET_MAP_OB (map, x, y, above); /* goes on above it. */	1130	ms.bot = above; /* goes on above it. */
1112	}	1131	}
1113		1132
1114	above = 0;	1133	above = 0;
1115	below = 0;	1134	below = 0;
1116		1135
1117	if (map->in_memory == MAP_SAVING)	1136	if (map->in_memory == MAP_SAVING)
1118	return;	1137	return;
1119		1138
1120	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);	1139	int check_walk_off = !flag [FLAG_NO_APPLY];
1121		1140
		1141	if (object *pl = ms.player ())
		1142	{
		1143	if (pl->container == this)
		1144	/* If a container that the player is currently using somehow gets
		1145	* removed (most likely destroyed), update the player view
		1146	* appropriately.
		1147	*/
		1148	pl->close_container ();
		1149
		1150	//TODO: the floorbox prev/next might need updating
		1151	//esrv_del_item (pl->contr, count);
		1152	//TODO: update floorbox to preserve ordering
		1153	if (pl->contr->ns)
		1154	pl->contr->ns->floorbox_update ();
		1155	}
		1156
1122	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)	1157	for (tmp = ms.bot; tmp; tmp = tmp->above)
1123	{	1158	{
1124	/* No point updating the players look faces if he is the object	1159	/* No point updating the players look faces if he is the object
1125	* being removed.	1160	* being removed.
1126	*/	1161	*/
1127		1162
1128	if (tmp->type == PLAYER && tmp != this)
1129	{
1130	/* If a container that the player is currently using somehow gets
1131	* removed (most likely destroyed), update the player view
1132	* appropriately.
1133	*/
1134	if (tmp->container == this)
1135	{
1136	CLEAR_FLAG (this, FLAG_APPLIED);
1137	tmp->container = 0;
1138	}
1139
1140	tmp->contr->socket.update_look = 1;
1141	}
1142
1143	/* See if player moving off should effect something */	1163	/* See if object moving off should effect something */
1144	if (check_walk_off	1164	if (check_walk_off
1145	&& ((move_type & tmp->move_off)	1165	&& ((move_type & tmp->move_off)
1146	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1166	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1147	{	1167	{
1148	move_apply (tmp, this, 0);	1168	move_apply (tmp, this, 0);
1149		1169
1150	if (destroyed ())	1170	if (destroyed ())
1151	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());	1171	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1152	}	1172	}
1153		1173
1154	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1155
1156	if (tmp->above == tmp)
1157	tmp->above = 0;
1158
1159	last = tmp;	1174	last = tmp;
1160	}	1175	}
1161		1176
1162	/* last == NULL of there are no objects on this space */	1177	/* last == NULL if there are no objects on this space */
		1178	//TODO: this makes little sense, why only update the topmost object?
1163	if (!last)	1179	if (!last)
1164	{	1180	map->at (x, y).flags_ = 0;
1165	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1166	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1167	* those out anyways, and if there are any flags set right now, they won't
1168	* be correct anyways.
1169	*/
1170	SET_MAP_FLAGS (map, x, y, P_NEED_UPDATE);
1171	update_position (map, x, y);
1172	}
1173	else	1181	else
1174	update_object (last, UP_OBJ_REMOVE);	1182	update_object (last, UP_OBJ_REMOVE);
1175		1183
1176	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)	1184	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1177	update_all_los (map, x, y);	1185	update_all_los (map, x, y);
1178	}	1186	}
1179	}	1187	}
1180		1188
1181	/*	1189	/*
…		…
1190	merge_ob (object *op, object *top)	1198	merge_ob (object *op, object *top)
1191	{	1199	{
1192	if (!op->nrof)	1200	if (!op->nrof)
1193	return 0;	1201	return 0;
1194		1202
1195	if (top == NULL)	1203	if (!top)
1196	for (top = op; top != NULL && top->above != NULL; top = top->above);	1204	for (top = op; top && top->above; top = top->above)
		1205	;
1197		1206
1198	for (; top != NULL; top = top->below)	1207	for (; top; top = top->below)
1199	{	1208	if (object::can_merge (op, top))
1200	if (top == op)
1201	continue;
1202	if (CAN_MERGE (op, top))
1203	{	1209	{
1204	top->nrof += op->nrof;	1210	top->nrof += op->nrof;
1205		1211
1206	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1212	if (object *pl = top->visible_to ())
1207	op->weight = 0; /* Don't want any adjustements now */	1213	esrv_update_item (UPD_NROF, pl, top);
1208	remove_ob (op);	1214
1209	free_object (op);	1215	op->weight = 0; // cancel the addition above
		1216	op->carrying = 0; // must be 0 already
		1217
		1218	op->destroy (1);
		1219
1210	return top;	1220	return top;
1211	}	1221	}
1212	}
1213		1222
1214	return 0;	1223	return 0;
1215	}	1224	}
1216		1225
		1226	void
		1227	object::expand_tail ()
		1228	{
		1229	if (more)
		1230	return;
		1231
		1232	object *prev = this;
		1233
		1234	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1235	{
		1236	object *op = arch_to_object (at);
		1237
		1238	op->name = name;
		1239	op->name_pl = name_pl;
		1240	op->title = title;
		1241
		1242	op->head = this;
		1243	prev->more = op;
		1244
		1245	prev = op;
		1246	}
		1247	}
		1248
1217	/*	1249	/*
1218	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1250	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1219	* job preparing multi-part monsters	1251	* job preparing multi-part monsters.
1220	*/	1252	*/
1221	object *	1253	object *
1222	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1254	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1223	{	1255	{
1224	object *tmp;
1225
1226	if (op->head)
1227	op = op->head;
1228
1229	for (tmp = op; tmp; tmp = tmp->more)	1256	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1230	{	1257	{
1231	tmp->x = x + tmp->arch->clone.x;	1258	tmp->x = x + tmp->arch->x;
1232	tmp->y = y + tmp->arch->clone.y;	1259	tmp->y = y + tmp->arch->y;
1233	}	1260	}
1234		1261
1235	return insert_ob_in_map (op, m, originator, flag);	1262	return insert_ob_in_map (op, m, originator, flag);
1236	}	1263	}
1237		1264
…		…
1253	* Return value:	1280	* Return value:
1254	* new object if 'op' was merged with other object	1281	* new object if 'op' was merged with other object
1255	* NULL if 'op' was destroyed	1282	* NULL if 'op' was destroyed
1256	* just 'op' otherwise	1283	* just 'op' otherwise
1257	*/	1284	*/
1258
1259	object *	1285	object *
1260	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1286	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1261	{	1287	{
1262	object *tmp, *top, *floor = NULL;	1288	assert (!op->flag [FLAG_FREED]);
1263	sint16 x, y;
1264		1289
1265	if (QUERY_FLAG (op, FLAG_FREED))	1290	op->remove ();
1266	{
1267	LOG (llevError, "Trying to insert freed object!\n");
1268	return NULL;
1269	}
1270
1271	if (m == NULL)
1272	{
1273	char *dump = dump_object (op);
1274	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1275	free (dump);
1276	return op;
1277	}
1278
1279	if (out_of_map (m, op->x, op->y))
1280	{
1281	char *dump = dump_object (op);
1282	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1283	#ifdef MANY_CORES
1284	/* Better to catch this here, as otherwise the next use of this object
1285	* is likely to cause a crash. Better to find out where it is getting
1286	* improperly inserted.
1287	*/
1288	abort ();
1289	#endif
1290	free (dump);
1291	return op;
1292	}
1293
1294	if (!QUERY_FLAG (op, FLAG_REMOVED))
1295	{
1296	char *dump = dump_object (op);
1297	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1298	free (dump);
1299	return op;
1300	}
1301
1302	if (op->more != NULL)
1303	{
1304	/* The part may be on a different map. */
1305
1306	object *more = op->more;
1307
1308	/* We really need the caller to normalize coordinates - if
1309	* we set the map, that doesn't work if the location is within
1310	* a map and this is straddling an edge. So only if coordinate
1311	* is clear wrong do we normalize it.
1312	*/
1313	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1314	more->map = get_map_from_coord (m, &more->x, &more->y);
1315	else if (!more->map)
1316	{
1317	/* For backwards compatibility - when not dealing with tiled maps,
1318	* more->map should always point to the parent.
1319	*/
1320	more->map = m;
1321	}
1322
1323	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1324	{
1325	if (!op->head)
1326	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1327
1328	return NULL;
1329	}
1330	}
1331
1332	CLEAR_FLAG (op, FLAG_REMOVED);
1333		1291
1334	/* Ideally, the caller figures this out. However, it complicates a lot	1292	/* Ideally, the caller figures this out. However, it complicates a lot
1335	* of areas of callers (eg, anything that uses find_free_spot would now	1293	* of areas of callers (eg, anything that uses find_free_spot would now
1336	* need extra work	1294	* need extra work
1337	*/	1295	*/
1338	op->map = get_map_from_coord (m, &op->x, &op->y);	1296	if (!xy_normalise (m, op->x, op->y))
1339	x = op->x;	1297	{
1340	y = op->y;	1298	op->head_ ()->destroy (1);// remove head_ once all tail object destroyers found
		1299	return 0;
		1300	}
		1301
		1302	if (object *more = op->more)
		1303	if (!insert_ob_in_map (more, m, originator, flag))
		1304	return 0;
		1305
		1306	CLEAR_FLAG (op, FLAG_REMOVED);
		1307
		1308	op->map = m;
		1309	mapspace &ms = op->ms ();
1341		1310
1342	/* this has to be done after we translate the coordinates.	1311	/* this has to be done after we translate the coordinates.
1343	*/	1312	*/
1344	if (op->nrof && !(flag & INS_NO_MERGE))	1313	if (op->nrof && !(flag & INS_NO_MERGE))
1345	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1314	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1346	if (CAN_MERGE (op, tmp))	1315	if (object::can_merge (op, tmp))
1347	{	1316	{
		1317	// TODO: we atcually want to update tmp, not op,
		1318	// but some caller surely breaks when we return tmp
		1319	// from here :/
1348	op->nrof += tmp->nrof;	1320	op->nrof += tmp->nrof;
1349	remove_ob (tmp);	1321	tmp->destroy (1);
1350	free_object (tmp);
1351	}	1322	}
1352		1323
1353	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1324	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1354	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1325	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1355		1326
…		…
1368	op->below = originator->below;	1339	op->below = originator->below;
1369		1340
1370	if (op->below)	1341	if (op->below)
1371	op->below->above = op;	1342	op->below->above = op;
1372	else	1343	else
1373	SET_MAP_OB (op->map, op->x, op->y, op);	1344	ms.bot = op;
1374		1345
1375	/* since *below* originator, no need to update top */	1346	/* since *below* originator, no need to update top */
1376	originator->below = op;	1347	originator->below = op;
1377	}	1348	}
1378	else	1349	else
1379	{	1350	{
		1351	object *top, *floor = NULL;
		1352
		1353	top = ms.bot;
		1354
1380	/* If there are other objects, then */	1355	/* If there are other objects, then */
1381	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1356	if (top)
1382	{	1357	{
1383	object *last = NULL;	1358	object *last = 0;
1384		1359
1385	/*	1360	/*
1386	* If there are multiple objects on this space, we do some trickier handling.	1361	* If there are multiple objects on this space, we do some trickier handling.
1387	* We've already dealt with merging if appropriate.	1362	* We've already dealt with merging if appropriate.
1388	* Generally, we want to put the new object on top. But if	1363	* Generally, we want to put the new object on top. But if
…		…
1392	* once we get to them. This reduces the need to traverse over all of	1367	* once we get to them. This reduces the need to traverse over all of
1393	* them when adding another one - this saves quite a bit of cpu time	1368	* them when adding another one - this saves quite a bit of cpu time
1394	* when lots of spells are cast in one area. Currently, it is presumed	1369	* when lots of spells are cast in one area. Currently, it is presumed
1395	* that flying non pickable objects are spell objects.	1370	* that flying non pickable objects are spell objects.
1396	*/	1371	*/
1397		1372	for (top = ms.bot; top; top = top->above)
1398	while (top != NULL)
1399	{	1373	{
1400	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1374	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1401	floor = top;	1375	floor = top;
1402		1376
1403	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1377	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
…		…
1406	top = top->below;	1380	top = top->below;
1407	break;	1381	break;
1408	}	1382	}
1409		1383
1410	last = top;	1384	last = top;
1411	top = top->above;
1412	}	1385	}
1413		1386
1414	/* Don't want top to be NULL, so set it to the last valid object */	1387	/* Don't want top to be NULL, so set it to the last valid object */
1415	top = last;	1388	top = last;
1416		1389
…		…
1418	* looks like instead of lots of conditions here.	1391	* looks like instead of lots of conditions here.
1419	* makes things faster, and effectively the same result.	1392	* makes things faster, and effectively the same result.
1420	*/	1393	*/
1421		1394
1422	/* Have object 'fall below' other objects that block view.	1395	/* Have object 'fall below' other objects that block view.
1423	* Unless those objects are exits, type 66	1396	* Unless those objects are exits.
1424	* If INS_ON_TOP is used, don't do this processing	1397	* If INS_ON_TOP is used, don't do this processing
1425	* Need to find the object that in fact blocks view, otherwise	1398	* Need to find the object that in fact blocks view, otherwise
1426	* stacking is a bit odd.	1399	* stacking is a bit odd.
1427	*/	1400	*/
1428	if (!(flag & INS_ON_TOP) &&	1401	if (!(flag & INS_ON_TOP)
1429	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1402	&& ms.flags () & P_BLOCKSVIEW
		1403	&& (op->face && !faces [op->face].visibility))
1430	{	1404	{
1431	for (last = top; last != floor; last = last->below)	1405	for (last = top; last != floor; last = last->below)
1432	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1406	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1433	break;	1407	break;
		1408
1434	/* Check to see if we found the object that blocks view,	1409	/* Check to see if we found the object that blocks view,
1435	* and make sure we have a below pointer for it so that	1410	* and make sure we have a below pointer for it so that
1436	* we can get inserted below this one, which requires we	1411	* we can get inserted below this one, which requires we
1437	* set top to the object below us.	1412	* set top to the object below us.
1438	*/	1413	*/
1439	if (last && last->below && last != floor)	1414	if (last && last->below && last != floor)
1440	top = last->below;	1415	top = last->below;
1441	}	1416	}
1442	} /* If objects on this space */	1417	} /* If objects on this space */
1443		1418
1444	if (flag & INS_MAP_LOAD)
1445	top = GET_MAP_TOP (op->map, op->x, op->y);
1446
1447	if (flag & INS_ABOVE_FLOOR_ONLY)	1419	if (flag & INS_ABOVE_FLOOR_ONLY)
1448	top = floor;	1420	top = floor;
1449		1421
1450	/* Top is the object that our object (op) is going to get inserted above.	1422	/* Top is the object that our object (op) is going to get inserted above.
1451	*/	1423	*/
1452		1424
1453	/* First object on this space */	1425	/* First object on this space */
1454	if (!top)	1426	if (!top)
1455	{	1427	{
1456	op->above = GET_MAP_OB (op->map, op->x, op->y);	1428	op->above = ms.bot;
1457		1429
1458	if (op->above)	1430	if (op->above)
1459	op->above->below = op;	1431	op->above->below = op;
1460		1432
1461	op->below = NULL;	1433	op->below = 0;
1462	SET_MAP_OB (op->map, op->x, op->y, op);	1434	ms.bot = op;
1463	}	1435	}
1464	else	1436	else
1465	{ /* get inserted into the stack above top */	1437	{ /* get inserted into the stack above top */
1466	op->above = top->above;	1438	op->above = top->above;
1467		1439
…		…
1470		1442
1471	op->below = top;	1443	op->below = top;
1472	top->above = op;	1444	top->above = op;
1473	}	1445	}
1474		1446
1475	if (op->above == NULL)	1447	if (!op->above)
1476	SET_MAP_TOP (op->map, op->x, op->y, op);	1448	ms.top = op;
1477	} /* else not INS_BELOW_ORIGINATOR */	1449	} /* else not INS_BELOW_ORIGINATOR */
1478		1450
1479	if (op->type == PLAYER)	1451	if (op->type == PLAYER)
		1452	{
1480	op->contr->do_los = 1;	1453	op->contr->do_los = 1;
		1454	++op->map->players;
		1455	op->map->touch ();
		1456	}
1481		1457
1482	/* If we have a floor, we know the player, if any, will be above	1458	op->map->dirty = true;
1483	* it, so save a few ticks and start from there.	1459
1484	*/	1460	if (object *pl = ms.player ())
1485	if (!(flag & INS_MAP_LOAD))	1461	//TODO: the floorbox prev/next might need updating
1486	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1462	//esrv_send_item (pl, op);
1487	if (tmp->type == PLAYER)	1463	//TODO: update floorbox to preserve ordering
1488	tmp->contr->socket.update_look = 1;	1464	if (pl->contr->ns)
		1465	pl->contr->ns->floorbox_update ();
1489		1466
1490	/* If this object glows, it may affect lighting conditions that are	1467	/* If this object glows, it may affect lighting conditions that are
1491	* visible to others on this map. But update_all_los is really	1468	* visible to others on this map. But update_all_los is really
1492	* an inefficient way to do this, as it means los for all players	1469	* an inefficient way to do this, as it means los for all players
1493	* on the map will get recalculated. The players could very well	1470	* on the map will get recalculated. The players could very well
1494	* be far away from this change and not affected in any way -	1471	* be far away from this change and not affected in any way -
1495	* this should get redone to only look for players within range,	1472	* this should get redone to only look for players within range,
1496	* or just updating the P_NEED_UPDATE for spaces within this area	1473	* or just updating the P_UPTODATE for spaces within this area
1497	* of effect may be sufficient.	1474	* of effect may be sufficient.
1498	*/	1475	*/
1499	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1476	if (op->map->darkness && (op->glow_radius != 0))
1500	update_all_los (op->map, op->x, op->y);	1477	update_all_los (op->map, op->x, op->y);
1501		1478
1502	/* updates flags (blocked, alive, no magic, etc) for this map space */	1479	/* updates flags (blocked, alive, no magic, etc) for this map space */
1503	update_object (op, UP_OBJ_INSERT);	1480	update_object (op, UP_OBJ_INSERT);
1504		1481
		1482	INVOKE_OBJECT (INSERT, op);
		1483
1505	/* Don't know if moving this to the end will break anything. However,	1484	/* Don't know if moving this to the end will break anything. However,
1506	* we want to have update_look set above before calling this.	1485	* we want to have floorbox_update called before calling this.
1507	*	1486	*
1508	* check_move_on() must be after this because code called from	1487	* check_move_on() must be after this because code called from
1509	* check_move_on() depends on correct map flags (so functions like	1488	* check_move_on() depends on correct map flags (so functions like
1510	* blocked() and wall() work properly), and these flags are updated by	1489	* blocked() and wall() work properly), and these flags are updated by
1511	* update_object().	1490	* update_object().
1512	*/	1491	*/
1513		1492
1514	/* if this is not the head or flag has been passed, don't check walk on status */	1493	/* if this is not the head or flag has been passed, don't check walk on status */
1515	if (!(flag & INS_NO_WALK_ON) && !op->head)	1494	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1516	{	1495	{
1517	if (check_move_on (op, originator))	1496	if (check_move_on (op, originator))
1518	return NULL;	1497	return 0;
1519		1498
1520	/* If we are a multi part object, lets work our way through the check	1499	/* If we are a multi part object, lets work our way through the check
1521	* walk on's.	1500	* walk on's.
1522	*/	1501	*/
1523	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1502	for (object *tmp = op->more; tmp; tmp = tmp->more)
1524	if (check_move_on (tmp, originator))	1503	if (check_move_on (tmp, originator))
1525	return NULL;	1504	return 0;
1526	}	1505	}
1527		1506
1528	return op;	1507	return op;
1529	}	1508	}
1530		1509
1531	/* this function inserts an object in the map, but if it	1510	/* this function inserts an object in the map, but if it
1532	* finds an object of its own type, it'll remove that one first.	1511	* finds an object of its own type, it'll remove that one first.
1533	* op is the object to insert it under: supplies x and the map.	1512	* op is the object to insert it under: supplies x and the map.
1534	*/	1513	*/
1535	void	1514	void
1536	replace_insert_ob_in_map (const char *arch_string, object *op)	1515	replace_insert_ob_in_map (const char *arch_string, object *op)
1537	{	1516	{
1538	object *
1539	tmp;
1540	object *
1541	tmp1;
1542
1543	/* first search for itself and remove any old instances */	1517	/* first search for itself and remove any old instances */
1544		1518
1545	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1519	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1546	{
1547	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1520	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1548	{	1521	tmp->destroy (1);
1549	remove_ob (tmp);
1550	free_object (tmp);
1551	}
1552	}
1553		1522
1554	tmp1 = arch_to_object (archetype::find (arch_string));	1523	object *tmp = arch_to_object (archetype::find (arch_string));
1555		1524
1556	tmp1->x = op->x;	1525	tmp->x = op->x;
1557	tmp1->y = op->y;	1526	tmp->y = op->y;
		1527
1558	insert_ob_in_map (tmp1, op->map, op, 0);	1528	insert_ob_in_map (tmp, op->map, op, 0);
1559	}	1529	}
1560
1561	/*
1562	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1563	* is returned contains nr objects, and the remaining parts contains
1564	* the rest (or is removed and freed if that number is 0).
1565	* On failure, NULL is returned, and the reason put into the
1566	* global static errmsg array.
1567	*/
1568		1530
1569	object *	1531	object *
1570	get_split_ob (object *orig_ob, uint32 nr)	1532	object::insert_at (object *where, object *originator, int flags)
1571	{	1533	{
1572	object *	1534	if (where->env)
1573	newob;	1535	return where->env->insert (this);
1574	int	1536	else
1575	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1537	return where->map->insert (this, where->x, where->y, originator, flags);
1576
1577	if (orig_ob->nrof < nr)
1578	{
1579	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1580	return NULL;
1581	}
1582
1583	newob = object_create_clone (orig_ob);
1584
1585	if ((orig_ob->nrof -= nr) < 1)
1586	{
1587	if (!is_removed)
1588	remove_ob (orig_ob);
1589	free_object2 (orig_ob, 1);
1590	}
1591	else if (!is_removed)
1592	{
1593	if (orig_ob->env != NULL)
1594	sub_weight (orig_ob->env, orig_ob->weight * nr);
1595	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1596	{
1597	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1598	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1599	return NULL;
1600	}
1601	}
1602
1603	newob->nrof = nr;
1604
1605	return newob;
1606	}	1538	}
1607		1539
1608	/*	1540	/*
1609	* decrease_ob_nr(object, number) decreases a specified number from	1541	* decrease(object, number) decreases a specified number from
1610	* the amount of an object. If the amount reaches 0, the object	1542	* the amount of an object. If the amount reaches 0, the object
1611	* is subsequently removed and freed.	1543	* is subsequently removed and freed.
1612	*	1544	*
1613	* Return value: 'op' if something is left, NULL if the amount reached 0	1545	* Return value: 'op' if something is left, NULL if the amount reached 0
1614	*/	1546	*/
		1547	bool
		1548	object::decrease (sint32 nr)
		1549	{
		1550	if (!nr)
		1551	return true;
1615		1552
		1553	nr = min (nr, nrof);
		1554
		1555	nrof -= nr;
		1556
		1557	if (nrof)
		1558	{
		1559	adjust_weight (env, -weight * nr); // carrying == 0
		1560
		1561	if (object *pl = visible_to ())
		1562	esrv_update_item (UPD_NROF, pl, this);
		1563
		1564	return true;
		1565	}
		1566	else
		1567	{
		1568	destroy (1);
		1569	return false;
		1570	}
		1571	}
		1572
		1573	/*
		1574	* split(ob,nr) splits up ob into two parts. The part which
		1575	* is returned contains nr objects, and the remaining parts contains
		1576	* the rest (or is removed and returned if that number is 0).
		1577	* On failure, NULL is returned.
		1578	*/
1616	object *	1579	object *
1617	decrease_ob_nr (object *op, uint32 i)	1580	object::split (sint32 nr)
1618	{	1581	{
1619	object *tmp;	1582	int have = number_of ();
1620	player *pl;
1621		1583
1622	if (i == 0) /* objects with op->nrof require this check */	1584	if (have < nr)
1623	return op;	1585	return 0;
1624		1586	else if (have == nr)
1625	if (i > op->nrof)
1626	i = op->nrof;
1627
1628	if (QUERY_FLAG (op, FLAG_REMOVED))
1629	op->nrof -= i;
1630	else if (op->env != NULL)
1631	{	1587	{
1632	/* is this object in the players inventory, or sub container
1633	* therein?
1634	*/
1635	tmp = is_player_inv (op->env);
1636	/* nope. Is this a container the player has opened?
1637	* If so, set tmp to that player.
1638	* IMO, searching through all the players will mostly
1639	* likely be quicker than following op->env to the map,
1640	* and then searching the map for a player.
1641	*/
1642	if (!tmp)
1643	{
1644	for (pl = first_player; pl; pl = pl->next)
1645	if (pl->ob->container == op->env)
1646	break;
1647	if (pl)
1648	tmp = pl->ob;
1649	else
1650	tmp = NULL;
1651	}
1652
1653	if (i < op->nrof)
1654	{
1655	sub_weight (op->env, op->weight * i);
1656	op->nrof -= i;
1657	if (tmp)
1658	{
1659	esrv_send_item (tmp, op);
1660	}
1661	}
1662	else
1663	{
1664	remove_ob (op);	1588	remove ();
1665	op->nrof = 0;	1589	return this;
1666	if (tmp)
1667	{
1668	esrv_del_item (tmp->contr, op->count);
1669	}
1670	}
1671	}	1590	}
1672	else	1591	else
1673	{	1592	{
1674	object *above = op->above;	1593	decrease (nr);
1675		1594
1676	if (i < op->nrof)	1595	object *op = deep_clone ();
1677	op->nrof -= i;	1596	op->nrof = nr;
1678	else
1679	{
1680	remove_ob (op);
1681	op->nrof = 0;
1682	}
1683
1684	/* Since we just removed op, op->above is null */
1685	for (tmp = above; tmp != NULL; tmp = tmp->above)
1686	if (tmp->type == PLAYER)
1687	{
1688	if (op->nrof)
1689	esrv_send_item (tmp, op);
1690	else
1691	esrv_del_item (tmp->contr, op->count);
1692	}
1693	}
1694
1695	if (op->nrof)
1696	return op;	1597	return op;
1697	else
1698	{
1699	free_object (op);
1700	return NULL;
1701	}
1702	}
1703
1704	/*
1705	* add_weight(object, weight) adds the specified weight to an object,
1706	* and also updates how much the environment(s) is/are carrying.
1707	*/
1708
1709	void
1710	add_weight (object *op, signed long weight)
1711	{
1712	while (op != NULL)
1713	{
1714	if (op->type == CONTAINER)
1715	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1716
1717	op->carrying += weight;
1718	op = op->env;
1719	}	1598	}
1720	}	1599	}
1721		1600
1722	object *	1601	object *
1723	insert_ob_in_ob (object *op, object *where)	1602	insert_ob_in_ob (object *op, object *where)
…		…
1728	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1607	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1729	free (dump);	1608	free (dump);
1730	return op;	1609	return op;
1731	}	1610	}
1732		1611
1733	if (where->head)	1612	if (where->head_ () != where)
1734	{	1613	{
1735	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");	1614	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1736	where = where->head;	1615	where = where->head;
1737	}	1616	}
1738		1617
1739	return where->insert (op);	1618	return where->insert (op);
1740	}	1619	}
…		…
1745	* inside the object environment.	1624	* inside the object environment.
1746	*	1625	*
1747	* The function returns now pointer to inserted item, and return value can	1626	* The function returns now pointer to inserted item, and return value can
1748	* be != op, if items are merged. -Tero	1627	* be != op, if items are merged. -Tero
1749	*/	1628	*/
1750
1751	object *	1629	object *
1752	object::insert (object *op)	1630	object::insert (object *op)
1753	{	1631	{
1754	object *tmp, *otmp;
1755
1756	if (!QUERY_FLAG (op, FLAG_REMOVED))
1757	op->remove ();
1758
1759	if (op->more)	1632	if (op->more)
1760	{	1633	{
1761	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1634	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1762	return op;	1635	return op;
1763	}	1636	}
1764		1637
1765	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1638	op->remove ();
1766	CLEAR_FLAG (op, FLAG_REMOVED);	1639
		1640	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1641
1767	if (op->nrof)	1642	if (op->nrof)
1768	{
1769	for (tmp = inv; tmp != NULL; tmp = tmp->below)	1643	for (object *tmp = inv; tmp; tmp = tmp->below)
1770	if (CAN_MERGE (tmp, op))	1644	if (object::can_merge (tmp, op))
1771	{	1645	{
1772	/* return the original object and remove inserted object	1646	/* return the original object and remove inserted object
1773	(client needs the original object) */	1647	(client needs the original object) */
1774	tmp->nrof += op->nrof;	1648	tmp->nrof += op->nrof;
1775	/* Weight handling gets pretty funky. Since we are adding to	1649
1776	* tmp->nrof, we need to increase the weight.	1650	if (object *pl = tmp->visible_to ())
1777	*/	1651	esrv_update_item (UPD_NROF, pl, tmp);
		1652
1778	add_weight (this, op->weight * op->nrof);	1653	adjust_weight (this, op->total_weight ());
1779	SET_FLAG (op, FLAG_REMOVED);	1654
1780	op->destroy (); /* free the inserted object */	1655	op->destroy (1);
1781	op = tmp;	1656	op = tmp;
1782	op->remove (); /* and fix old object's links */	1657	goto inserted;
1783	CLEAR_FLAG (op, FLAG_REMOVED);
1784	break;
1785	}	1658	}
1786		1659
1787	/* I assume combined objects have no inventory	1660	op->owner = 0; // it's his/hers now. period.
1788	* We add the weight - this object could have just been removed
1789	* (if it was possible to merge). calling remove_ob will subtract
1790	* the weight, so we need to add it in again, since we actually do
1791	* the linking below
1792	*/
1793	add_weight (this, op->weight * op->nrof);
1794	}
1795	else
1796	add_weight (this, (op->weight + op->carrying));
1797
1798	otmp = is_player_inv (this);
1799	if (otmp && otmp->contr)
1800	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1801	fix_player (otmp);
1802
1803	op->map = NULL;	1661	op->map = 0;
		1662	op->x = 0;
		1663	op->y = 0;
		1664
		1665	op->above = 0;
		1666	op->below = inv;
1804	op->env = this;	1667	op->env = this;
1805	op->above = NULL;
1806	op->below = NULL;
1807	op->x = 0, op->y = 0;
1808		1668
		1669	if (inv)
		1670	inv->above = op;
		1671
		1672	inv = op;
		1673
		1674	op->flag [FLAG_REMOVED] = 0;
		1675
		1676	if (object *pl = op->visible_to ())
		1677	esrv_send_item (pl, op);
		1678
		1679	adjust_weight (this, op->total_weight ());
		1680
		1681	inserted:
1809	/* reset the light list and los of the players on the map */	1682	/* reset the light list and los of the players on the map */
1810	if ((op->glow_radius != 0) && map)	1683	if (op->glow_radius && map && map->darkness)
1811	{
1812	#ifdef DEBUG_LIGHTS
1813	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1814	#endif /* DEBUG_LIGHTS */
1815	if (MAP_DARKNESS (map))
1816	update_all_los (map, x, y);	1684	update_all_los (map, x, y);
1817	}
1818		1685
1819	/* Client has no idea of ordering so lets not bother ordering it here.	1686	// if this is a player's inventory, update stats
1820	* It sure simplifies this function...	1687	if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1821	*/	1688	update_stats ();
1822	if (!inv)	1689
1823	inv = op;	1690	INVOKE_OBJECT (INSERT, this);
1824	else
1825	{
1826	op->below = inv;
1827	op->below->above = op;
1828	inv = op;
1829	}
1830		1691
1831	return op;	1692	return op;
1832	}	1693	}
1833		1694
1834	/*	1695	/*
…		…
1849	*	1710	*
1850	* MSW 2001-07-08: Check all objects on space, not just those below	1711	* MSW 2001-07-08: Check all objects on space, not just those below
1851	* object being inserted. insert_ob_in_map may not put new objects	1712	* object being inserted. insert_ob_in_map may not put new objects
1852	* on top.	1713	* on top.
1853	*/	1714	*/
1854
1855	int	1715	int
1856	check_move_on (object *op, object *originator)	1716	check_move_on (object *op, object *originator)
1857	{	1717	{
1858	object *tmp;	1718	object *tmp;
1859	maptile *m = op->map;	1719	maptile *m = op->map;
…		…
1886		1746
1887	/* The objects have to be checked from top to bottom.	1747	/* The objects have to be checked from top to bottom.
1888	* Hence, we first go to the top:	1748	* Hence, we first go to the top:
1889	*/	1749	*/
1890		1750
1891	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1751	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1892	{	1752	{
1893	/* Trim the search when we find the first other spell effect	1753	/* Trim the search when we find the first other spell effect
1894	* this helps performance so that if a space has 50 spell objects,	1754	* this helps performance so that if a space has 50 spell objects,
1895	* we don't need to check all of them.	1755	* we don't need to check all of them.
1896	*/	1756	*/
…		…
1914	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1774	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1915	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1775	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1916	{	1776	{
1917		1777
1918	float	1778	float
1919	diff = tmp->move_slow_penalty * FABS (op->speed);	1779	diff = tmp->move_slow_penalty * fabs (op->speed);
1920		1780
1921	if (op->type == PLAYER)	1781	if (op->type == PLAYER)
1922	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1782	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1923	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1783	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1924	diff /= 4.0;	1784	diff /= 4.0;
…		…
1951	/*	1811	/*
1952	* present_arch(arch, map, x, y) searches for any objects with	1812	* present_arch(arch, map, x, y) searches for any objects with
1953	* a matching archetype at the given map and coordinates.	1813	* a matching archetype at the given map and coordinates.
1954	* The first matching object is returned, or NULL if none.	1814	* The first matching object is returned, or NULL if none.
1955	*/	1815	*/
1956
1957	object *	1816	object *
1958	present_arch (const archetype *at, maptile *m, int x, int y)	1817	present_arch (const archetype *at, maptile *m, int x, int y)
1959	{	1818	{
1960	object *
1961	tmp;
1962
1963	if (m == NULL || out_of_map (m, x, y))	1819	if (!m || out_of_map (m, x, y))
1964	{	1820	{
1965	LOG (llevError, "Present_arch called outside map.\n");	1821	LOG (llevError, "Present_arch called outside map.\n");
1966	return NULL;	1822	return NULL;
1967	}	1823	}
1968	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1824
1969	if (tmp->arch == at)	1825	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1826	if (tmp->arch->archname == at->archname)
1970	return tmp;	1827	return tmp;
		1828
1971	return NULL;	1829	return NULL;
1972	}	1830	}
1973		1831
1974	/*	1832	/*
1975	* present(type, map, x, y) searches for any objects with	1833	* present(type, map, x, y) searches for any objects with
1976	* a matching type variable at the given map and coordinates.	1834	* a matching type variable at the given map and coordinates.
1977	* The first matching object is returned, or NULL if none.	1835	* The first matching object is returned, or NULL if none.
1978	*/	1836	*/
1979
1980	object *	1837	object *
1981	present (unsigned char type, maptile *m, int x, int y)	1838	present (unsigned char type, maptile *m, int x, int y)
1982	{	1839	{
1983	object *
1984	tmp;
1985
1986	if (out_of_map (m, x, y))	1840	if (out_of_map (m, x, y))
1987	{	1841	{
1988	LOG (llevError, "Present called outside map.\n");	1842	LOG (llevError, "Present called outside map.\n");
1989	return NULL;	1843	return NULL;
1990	}	1844	}
1991	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1845
		1846	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1992	if (tmp->type == type)	1847	if (tmp->type == type)
1993	return tmp;	1848	return tmp;
		1849
1994	return NULL;	1850	return NULL;
1995	}	1851	}
1996		1852
1997	/*	1853	/*
1998	* present_in_ob(type, object) searches for any objects with	1854	* present_in_ob(type, object) searches for any objects with
1999	* a matching type variable in the inventory of the given object.	1855	* a matching type variable in the inventory of the given object.
2000	* The first matching object is returned, or NULL if none.	1856	* The first matching object is returned, or NULL if none.
2001	*/	1857	*/
2002
2003	object *	1858	object *
2004	present_in_ob (unsigned char type, const object *op)	1859	present_in_ob (unsigned char type, const object *op)
2005	{	1860	{
2006	object *
2007	tmp;
2008
2009	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1861	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2010	if (tmp->type == type)	1862	if (tmp->type == type)
2011	return tmp;	1863	return tmp;
		1864
2012	return NULL;	1865	return NULL;
2013	}	1866	}
2014		1867
2015	/*	1868	/*
2016	* present_in_ob (type, str, object) searches for any objects with	1869	* present_in_ob (type, str, object) searches for any objects with
…		…
2024	* str is the string to match against. Note that we match against	1877	* str is the string to match against. Note that we match against
2025	* the object name, not the archetype name. this is so that the	1878	* the object name, not the archetype name. this is so that the
2026	* spell code can use one object type (force), but change it's name	1879	* spell code can use one object type (force), but change it's name
2027	* to be unique.	1880	* to be unique.
2028	*/	1881	*/
2029
2030	object *	1882	object *
2031	present_in_ob_by_name (int type, const char *str, const object *op)	1883	present_in_ob_by_name (int type, const char *str, const object *op)
2032	{	1884	{
2033	object *
2034	tmp;
2035
2036	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1885	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2037	{
2038	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1886	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2039	return tmp;	1887	return tmp;
2040	}	1888
2041	return NULL;	1889	return 0;
2042	}	1890	}
2043		1891
2044	/*	1892	/*
2045	* present_arch_in_ob(archetype, object) searches for any objects with	1893	* present_arch_in_ob(archetype, object) searches for any objects with
2046	* a matching archetype in the inventory of the given object.	1894	* a matching archetype in the inventory of the given object.
2047	* The first matching object is returned, or NULL if none.	1895	* The first matching object is returned, or NULL if none.
2048	*/	1896	*/
2049
2050	object *	1897	object *
2051	present_arch_in_ob (const archetype *at, const object *op)	1898	present_arch_in_ob (const archetype *at, const object *op)
2052	{	1899	{
2053	object *
2054	tmp;
2055
2056	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1900	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2057	if (tmp->arch == at)	1901	if (tmp->arch->archname == at->archname)
2058	return tmp;	1902	return tmp;
		1903
2059	return NULL;	1904	return NULL;
2060	}	1905	}
2061		1906
2062	/*	1907	/*
2063	* activate recursively a flag on an object inventory	1908	* activate recursively a flag on an object inventory
2064	*/	1909	*/
2065	void	1910	void
2066	flag_inv (object *op, int flag)	1911	flag_inv (object *op, int flag)
2067	{	1912	{
2068	object *
2069	tmp;
2070
2071	if (op->inv)
2072	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1913	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2073	{	1914	{
2074	SET_FLAG (tmp, flag);	1915	SET_FLAG (tmp, flag);
2075	flag_inv (tmp, flag);	1916	flag_inv (tmp, flag);
2076	}	1917	}
2077	} /*	1918	}
		1919
		1920	/*
2078	* desactivate recursively a flag on an object inventory	1921	* deactivate recursively a flag on an object inventory
2079	*/	1922	*/
2080	void	1923	void
2081	unflag_inv (object *op, int flag)	1924	unflag_inv (object *op, int flag)
2082	{	1925	{
2083	object *
2084	tmp;
2085
2086	if (op->inv)
2087	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1926	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2088	{	1927	{
2089	CLEAR_FLAG (tmp, flag);	1928	CLEAR_FLAG (tmp, flag);
2090	unflag_inv (tmp, flag);	1929	unflag_inv (tmp, flag);
2091	}	1930	}
2092	}
2093
2094	/*
2095	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2096	* all it's inventory (recursively).
2097	* If checksums are used, a player will get set_cheat called for
2098	* him/her-self and all object carried by a call to this function.
2099	*/
2100
2101	void
2102	set_cheat (object *op)
2103	{
2104	SET_FLAG (op, FLAG_WAS_WIZ);
2105	flag_inv (op, FLAG_WAS_WIZ);
2106	}	1931	}
2107		1932
2108	/*	1933	/*
2109	* find_free_spot(object, map, x, y, start, stop) will search for	1934	* find_free_spot(object, map, x, y, start, stop) will search for
2110	* a spot at the given map and coordinates which will be able to contain	1935	* a spot at the given map and coordinates which will be able to contain
…		…
2112	* to search (see the freearr_x/y[] definition).	1937	* to search (see the freearr_x/y[] definition).
2113	* It returns a random choice among the alternatives found.	1938	* It returns a random choice among the alternatives found.
2114	* start and stop are where to start relative to the free_arr array (1,9	1939	* start and stop are where to start relative to the free_arr array (1,9
2115	* does all 4 immediate directions). This returns the index into the	1940	* does all 4 immediate directions). This returns the index into the
2116	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1941	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2117	* Note - this only checks to see if there is space for the head of the
2118	* object - if it is a multispace object, this should be called for all
2119	* pieces.
2120	* Note2: This function does correctly handle tiled maps, but does not	1942	* Note: This function does correctly handle tiled maps, but does not
2121	* inform the caller. However, insert_ob_in_map will update as	1943	* inform the caller. However, insert_ob_in_map will update as
2122	* necessary, so the caller shouldn't need to do any special work.	1944	* necessary, so the caller shouldn't need to do any special work.
2123	* Note - updated to take an object instead of archetype - this is necessary	1945	* Note - updated to take an object instead of archetype - this is necessary
2124	* because arch_blocked (now ob_blocked) needs to know the movement type	1946	* because arch_blocked (now ob_blocked) needs to know the movement type
2125	* to know if the space in question will block the object. We can't use	1947	* to know if the space in question will block the object. We can't use
2126	* the archetype because that isn't correct if the monster has been	1948	* the archetype because that isn't correct if the monster has been
2127	* customized, changed states, etc.	1949	* customized, changed states, etc.
2128	*/	1950	*/
2129
2130	int	1951	int
2131	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	1952	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2132	{	1953	{
2133	int
2134	i,
2135	index = 0, flag;
2136	static int
2137	altern[SIZEOFFREE];	1954	int altern[SIZEOFFREE];
		1955	int index = 0, flag;
2138		1956
2139	for (i = start; i < stop; i++)	1957	for (int i = start; i < stop; i++)
2140	{	1958	{
2141	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1959	mapxy pos (m, x, y); pos.move (i);
2142	if (!flag)	1960
		1961	if (!pos.normalise ())
		1962	continue;
		1963
		1964	mapspace &ms = *pos;
		1965
		1966	if (ms.flags () & P_IS_ALIVE)
		1967	continue;
		1968
		1969	/* However, often
		1970	* ob doesn't have any move type (when used to place exits)
		1971	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1972	*/
		1973	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1974	{
2143	altern[index++] = i;	1975	altern [index++] = i;
		1976	continue;
		1977	}
2144		1978
2145	/* Basically, if we find a wall on a space, we cut down the search size.	1979	/* Basically, if we find a wall on a space, we cut down the search size.
2146	* In this way, we won't return spaces that are on another side of a wall.	1980	* In this way, we won't return spaces that are on another side of a wall.
2147	* This mostly work, but it cuts down the search size in all directions -	1981	* This mostly work, but it cuts down the search size in all directions -
2148	* if the space being examined only has a wall to the north and empty	1982	* if the space being examined only has a wall to the north and empty
2149	* spaces in all the other directions, this will reduce the search space	1983	* spaces in all the other directions, this will reduce the search space
2150	* to only the spaces immediately surrounding the target area, and	1984	* to only the spaces immediately surrounding the target area, and
2151	* won't look 2 spaces south of the target space.	1985	* won't look 2 spaces south of the target space.
2152	*/	1986	*/
2153	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	1987	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1988	{
2154	stop = maxfree[i];	1989	stop = maxfree[i];
		1990	continue;
		1991	}
		1992
		1993	/* Note it is intentional that we check ob - the movement type of the
		1994	* head of the object should correspond for the entire object.
		1995	*/
		1996	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1997	continue;
		1998
		1999	if (ob->blocked (m, pos.x, pos.y))
		2000	continue;
		2001
		2002	altern [index++] = i;
2155	}	2003	}
		2004
2156	if (!index)	2005	if (!index)
2157	return -1;	2006	return -1;
		2007
2158	return altern[RANDOM () % index];	2008	return altern [rndm (index)];
2159	}	2009	}
2160		2010
2161	/*	2011	/*
2162	* find_first_free_spot(archetype, maptile, x, y) works like	2012	* find_first_free_spot(archetype, maptile, x, y) works like
2163	* find_free_spot(), but it will search max number of squares.	2013	* find_free_spot(), but it will search max number of squares.
2164	* But it will return the first available spot, not a random choice.	2014	* But it will return the first available spot, not a random choice.
2165	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2015	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2166	*/	2016	*/
2167
2168	int	2017	int
2169	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2018	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2170	{	2019	{
2171	int
2172	i;
2173
2174	for (i = 0; i < SIZEOFFREE; i++)	2020	for (int i = 0; i < SIZEOFFREE; i++)
2175	{
2176	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2021	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2177	return i;	2022	return i;
2178	}	2023
2179	return -1;	2024	return -1;
2180	}	2025	}
2181		2026
2182	/*	2027	/*
2183	* The function permute(arr, begin, end) randomly reorders the array	2028	* The function permute(arr, begin, end) randomly reorders the array
2184	* arr[begin..end-1].	2029	* arr[begin..end-1].
		2030	* now uses a fisher-yates shuffle, old permute was broken
2185	*/	2031	*/
2186	static void	2032	static void
2187	permute (int *arr, int begin, int end)	2033	permute (int *arr, int begin, int end)
2188	{	2034	{
2189	int	2035	arr += begin;
2190	i,
2191	j,
2192	tmp,
2193	len;
2194
2195	len = end - begin;	2036	end -= begin;
2196	for (i = begin; i < end; i++)
2197	{
2198	j = begin + RANDOM () % len;
2199		2037
2200	tmp = arr[i];	2038	while (--end)
2201	arr[i] = arr[j];	2039	swap (arr [end], arr [rndm (end + 1)]);
2202	arr[j] = tmp;
2203	}
2204	}	2040	}
2205		2041
2206	/* new function to make monster searching more efficient, and effective!	2042	/* new function to make monster searching more efficient, and effective!
2207	* This basically returns a randomized array (in the passed pointer) of	2043	* This basically returns a randomized array (in the passed pointer) of
2208	* the spaces to find monsters. In this way, it won't always look for	2044	* the spaces to find monsters. In this way, it won't always look for
…		…
2211	* the 3x3 area will be searched, just not in a predictable order.	2047	* the 3x3 area will be searched, just not in a predictable order.
2212	*/	2048	*/
2213	void	2049	void
2214	get_search_arr (int *search_arr)	2050	get_search_arr (int *search_arr)
2215	{	2051	{
2216	int	2052	int i;
2217	i;
2218		2053
2219	for (i = 0; i < SIZEOFFREE; i++)	2054	for (i = 0; i < SIZEOFFREE; i++)
2220	{
2221	search_arr[i] = i;	2055	search_arr[i] = i;
2222	}
2223		2056
2224	permute (search_arr, 1, SIZEOFFREE1 + 1);	2057	permute (search_arr, 1, SIZEOFFREE1 + 1);
2225	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2058	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2226	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2059	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2227	}	2060	}
…		…
2236	* Perhaps incorrectly, but I'm making the assumption that exclude	2069	* Perhaps incorrectly, but I'm making the assumption that exclude
2237	* is actually want is going to try and move there. We need this info	2070	* is actually want is going to try and move there. We need this info
2238	* because we have to know what movement the thing looking to move	2071	* because we have to know what movement the thing looking to move
2239	* there is capable of.	2072	* there is capable of.
2240	*/	2073	*/
2241
2242	int	2074	int
2243	find_dir (maptile *m, int x, int y, object *exclude)	2075	find_dir (maptile *m, int x, int y, object *exclude)
2244	{	2076	{
2245	int
2246	i,
2247	max = SIZEOFFREE, mflags;	2077	int i, max = SIZEOFFREE, mflags;
2248		2078
2249	sint16 nx, ny;	2079	sint16 nx, ny;
2250	object *	2080	object *tmp;
2251	tmp;
2252	maptile *	2081	maptile *mp;
2253	mp;
2254		2082
2255	MoveType blocked, move_type;	2083	MoveType blocked, move_type;
2256		2084
2257	if (exclude && exclude->head)	2085	if (exclude && exclude->head_ () != exclude)
2258	{	2086	{
2259	exclude = exclude->head;	2087	exclude = exclude->head;
2260	move_type = exclude->move_type;	2088	move_type = exclude->move_type;
2261	}	2089	}
2262	else	2090	else
…		…
2270	mp = m;	2098	mp = m;
2271	nx = x + freearr_x[i];	2099	nx = x + freearr_x[i];
2272	ny = y + freearr_y[i];	2100	ny = y + freearr_y[i];
2273		2101
2274	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2102	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2103
2275	if (mflags & P_OUT_OF_MAP)	2104	if (mflags & P_OUT_OF_MAP)
2276	{
2277	max = maxfree[i];	2105	max = maxfree[i];
2278	}
2279	else	2106	else
2280	{	2107	{
2281	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2108	mapspace &ms = mp->at (nx, ny);
		2109
		2110	blocked = ms.move_block;
2282		2111
2283	if ((move_type & blocked) == move_type)	2112	if ((move_type & blocked) == move_type)
2284	{
2285	max = maxfree[i];	2113	max = maxfree[i];
2286	}
2287	else if (mflags & P_IS_ALIVE)	2114	else if (mflags & P_IS_ALIVE)
2288	{	2115	{
2289	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2116	for (tmp = ms.bot; tmp; tmp = tmp->above)
2290	{	2117	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2291	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2118	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2292	{
2293	break;	2119	break;
2294	}	2120
2295	}
2296	if (tmp)	2121	if (tmp)
2297	{
2298	return freedir[i];	2122	return freedir[i];
2299	}
2300	}	2123	}
2301	}	2124	}
2302	}	2125	}
		2126
2303	return 0;	2127	return 0;
2304	}	2128	}
2305		2129
2306	/*	2130	/*
2307	* distance(object 1, object 2) will return the square of the	2131	* distance(object 1, object 2) will return the square of the
2308	* distance between the two given objects.	2132	* distance between the two given objects.
2309	*/	2133	*/
2310
2311	int	2134	int
2312	distance (const object *ob1, const object *ob2)	2135	distance (const object *ob1, const object *ob2)
2313	{	2136	{
2314	int
2315	i;
2316
2317	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2137	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2318	return i;
2319	}	2138	}
2320		2139
2321	/*	2140	/*
2322	* find_dir_2(delta-x,delta-y) will return a direction in which	2141	* find_dir_2(delta-x,delta-y) will return a direction in which
2323	* an object which has subtracted the x and y coordinates of another	2142	* an object which has subtracted the x and y coordinates of another
2324	* object, needs to travel toward it.	2143	* object, needs to travel toward it.
2325	*/	2144	*/
2326
2327	int	2145	int
2328	find_dir_2 (int x, int y)	2146	find_dir_2 (int x, int y)
2329	{	2147	{
2330	int	2148	int q;
2331	q;
2332		2149
2333	if (y)	2150	if (y)
2334	q = x * 100 / y;	2151	q = x * 100 / y;
2335	else if (x)	2152	else if (x)
2336	q = -300 * x;	2153	q = -300 * x;
…		…
2361		2178
2362	return 3;	2179	return 3;
2363	}	2180	}
2364		2181
2365	/*	2182	/*
2366	* absdir(int): Returns a number between 1 and 8, which represent
2367	* the "absolute" direction of a number (it actually takes care of
2368	* "overflow" in previous calculations of a direction).
2369	*/
2370
2371	int
2372	absdir (int d)
2373	{
2374	while (d < 1)
2375	d += 8;
2376	while (d > 8)
2377	d -= 8;
2378	return d;
2379	}
2380
2381	/*
2382	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2183	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2383	* between two directions (which are expected to be absolute (see absdir())	2184	* between two directions (which are expected to be absolute (see absdir())
2384	*/	2185	*/
2385
2386	int	2186	int
2387	dirdiff (int dir1, int dir2)	2187	dirdiff (int dir1, int dir2)
2388	{	2188	{
2389	int	2189	int d;
2390	d;
2391		2190
2392	d = abs (dir1 - dir2);	2191	d = abs (dir1 - dir2);
2393	if (d > 4)	2192	if (d > 4)
2394	d = 8 - d;	2193	d = 8 - d;
		2194
2395	return d;	2195	return d;
2396	}	2196	}
2397		2197
2398	/* peterm:	2198	/* peterm:
2399	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2199	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2402	* This basically means that if direction is 15, then it could either go	2202	* This basically means that if direction is 15, then it could either go
2403	* direction 4, 14, or 16 to get back to where we are.	2203	* direction 4, 14, or 16 to get back to where we are.
2404	* Moved from spell_util.c to object.c with the other related direction	2204	* Moved from spell_util.c to object.c with the other related direction
2405	* functions.	2205	* functions.
2406	*/	2206	*/
2407
2408	int
2409	reduction_dir[SIZEOFFREE][3] = {	2207	int reduction_dir[SIZEOFFREE][3] = {
2410	{0, 0, 0}, /* 0 */	2208	{0, 0, 0}, /* 0 */
2411	{0, 0, 0}, /* 1 */	2209	{0, 0, 0}, /* 1 */
2412	{0, 0, 0}, /* 2 */	2210	{0, 0, 0}, /* 2 */
2413	{0, 0, 0}, /* 3 */	2211	{0, 0, 0}, /* 3 */
2414	{0, 0, 0}, /* 4 */	2212	{0, 0, 0}, /* 4 */
…		…
2462	* find a path to that monster that we found. If not,	2260	* find a path to that monster that we found. If not,
2463	* we don't bother going toward it. Returns 1 if we	2261	* we don't bother going toward it. Returns 1 if we
2464	* can see a direct way to get it	2262	* can see a direct way to get it
2465	* Modified to be map tile aware -.MSW	2263	* Modified to be map tile aware -.MSW
2466	*/	2264	*/
2467
2468
2469	int	2265	int
2470	can_see_monsterP (maptile *m, int x, int y, int dir)	2266	can_see_monsterP (maptile *m, int x, int y, int dir)
2471	{	2267	{
2472	sint16 dx, dy;	2268	sint16 dx, dy;
2473	int
2474	mflags;	2269	int mflags;
2475		2270
2476	if (dir < 0)	2271	if (dir < 0)
2477	return 0; /* exit condition: invalid direction */	2272	return 0; /* exit condition: invalid direction */
2478		2273
2479	dx = x + freearr_x[dir];	2274	dx = x + freearr_x[dir];
…		…
2492	return 0;	2287	return 0;
2493		2288
2494	/* yes, can see. */	2289	/* yes, can see. */
2495	if (dir < 9)	2290	if (dir < 9)
2496	return 1;	2291	return 1;
		2292
2497	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2293	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2498	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2294	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2295	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2499	}	2296	}
2500
2501
2502		2297
2503	/*	2298	/*
2504	* can_pick(picker, item): finds out if an object is possible to be	2299	* can_pick(picker, item): finds out if an object is possible to be
2505	* picked up by the picker. Returnes 1 if it can be	2300	* picked up by the picker. Returnes 1 if it can be
2506	* picked up, otherwise 0.	2301	* picked up, otherwise 0.
…		…
2508	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2303	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2509	* core dumps if they do.	2304	* core dumps if they do.
2510	*	2305	*
2511	* Add a check so we can't pick up invisible objects (0.93.8)	2306	* Add a check so we can't pick up invisible objects (0.93.8)
2512	*/	2307	*/
2513
2514	int	2308	int
2515	can_pick (const object *who, const object *item)	2309	can_pick (const object *who, const object *item)
2516	{	2310	{
2517	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2311	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2518	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2312	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2519	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2313	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2520	}	2314	}
2521		2315
2522
2523	/*	2316	/*
2524	* create clone from object to another	2317	* create clone from object to another
2525	*/	2318	*/
2526	object *	2319	object *
2527	object_create_clone (object *asrc)	2320	object::deep_clone ()
2528	{	2321	{
2529	object *dst = 0, *tmp, *src, *part, *prev, *item;	2322	assert (("deep_clone called on non-head object", is_head ()));
2530		2323
2531	if (!asrc)	2324	object *dst = clone ();
2532	return 0;
2533		2325
2534	src = asrc;	2326	object *prev = dst;
2535	if (src->head)
2536	src = src->head;
2537
2538	prev = 0;
2539	for (part = src; part; part = part->more)	2327	for (object *part = this->more; part; part = part->more)
2540	{	2328	{
2541	tmp = get_object ();	2329	object *tmp = part->clone ();
2542	copy_object (part, tmp);
2543	tmp->x -= src->x;
2544	tmp->y -= src->y;
2545
2546	if (!part->head)
2547	{
2548	dst = tmp;
2549	tmp->head = 0;
2550	}
2551	else
2552	{
2553	tmp->head = dst;	2330	tmp->head = dst;
2554	}
2555
2556	tmp->more = 0;
2557
2558	if (prev)
2559	prev->more = tmp;	2331	prev->more = tmp;
2560
2561	prev = tmp;	2332	prev = tmp;
2562	}	2333	}
2563		2334
2564	for (item = src->inv; item; item = item->below)	2335	for (object *item = inv; item; item = item->below)
2565	insert_ob_in_ob (object_create_clone (item), dst);	2336	insert_ob_in_ob (item->deep_clone (), dst);
2566		2337
2567	return dst;	2338	return dst;
2568	}
2569
2570	/* GROS - Creates an object using a string representing its content. */
2571	/* Basically, we save the content of the string to a temp file, then call */
2572	/* load_object on it. I admit it is a highly inefficient way to make things, */
2573	/* but it was simple to make and allows reusing the load_object function. */
2574	/* Remember not to use load_object_str in a time-critical situation. */
2575	/* Also remember that multiparts objects are not supported for now. */
2576
2577	object *
2578	load_object_str (const char *obstr)
2579	{
2580	object *op;
2581	char filename[MAX_BUF];
2582
2583	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2584
2585	FILE *tempfile = fopen (filename, "w");
2586
2587	if (tempfile == NULL)
2588	{
2589	LOG (llevError, "Error - Unable to access load object temp file\n");
2590	return NULL;
2591	}
2592
2593	fprintf (tempfile, obstr);
2594	fclose (tempfile);
2595
2596	op = get_object ();
2597
2598	object_thawer thawer (filename);
2599
2600	if (thawer)
2601	load_object (thawer, op, 0);
2602
2603	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2604	CLEAR_FLAG (op, FLAG_REMOVED);
2605
2606	return op;
2607	}	2339	}
2608		2340
2609	/* This returns the first object in who's inventory that	2341	/* This returns the first object in who's inventory that
2610	* has the same type and subtype match.	2342	* has the same type and subtype match.
2611	* returns NULL if no match.	2343	* returns NULL if no match.
2612	*/	2344	*/
2613	object *	2345	object *
2614	find_obj_by_type_subtype (const object *who, int type, int subtype)	2346	find_obj_by_type_subtype (const object *who, int type, int subtype)
2615	{	2347	{
2616	object *tmp;
2617
2618	for (tmp = who->inv; tmp; tmp = tmp->below)	2348	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2619	if (tmp->type == type && tmp->subtype == subtype)	2349	if (tmp->type == type && tmp->subtype == subtype)
2620	return tmp;	2350	return tmp;
2621		2351
2622	return NULL;
2623	}
2624
2625	/* If ob has a field named key, return the link from the list,
2626	* otherwise return NULL.
2627	*
2628	* key must be a passed in shared string - otherwise, this won't
2629	* do the desired thing.
2630	*/
2631	key_value *
2632	get_ob_key_link (const object *ob, const char *key)
2633	{
2634	key_value *link;
2635
2636	for (link = ob->key_values; link != NULL; link = link->next)
2637	if (link->key == key)
2638	return link;
2639
2640	return NULL;
2641	}
2642
2643	/*
2644	* Returns the value of op has an extra_field for key, or NULL.
2645	*
2646	* The argument doesn't need to be a shared string.
2647	*
2648	* The returned string is shared.
2649	*/
2650	const char *
2651	get_ob_key_value (const object *op, const char *const key)
2652	{
2653	key_value *link;
2654	shstr_cmp canonical_key (key);
2655
2656	if (!canonical_key)
2657	{
2658	/* 1. There being a field named key on any object
2659	* implies there'd be a shared string to find.
2660	* 2. Since there isn't, no object has this field.
2661	* 3. Therefore, *this* object doesn't have this field.
2662	*/
2663	return 0;
2664	}
2665
2666	/* This is copied from get_ob_key_link() above -
2667	* only 4 lines, and saves the function call overhead.
2668	*/
2669	for (link = op->key_values; link; link = link->next)
2670	if (link->key == canonical_key)
2671	return link->value;
2672
2673	return 0;	2352	return 0;
2674	}	2353	}
2675		2354
2676		2355	const shstr &
2677	/*	2356	object::kv_get (const shstr &key) const
2678	* Updates the canonical_key in op to value.
2679	*
2680	* canonical_key is a shared string (value doesn't have to be).
2681	*
2682	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2683	* keys.
2684	*
2685	* Returns TRUE on success.
2686	*/
2687	int
2688	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2689	{	2357	{
2690	key_value *	2358	for (key_value *kv = key_values; kv; kv = kv->next)
2691	field = NULL, *last = NULL;	2359	if (kv->key == key)
		2360	return kv->value;
2692		2361
2693	for (field = op->key_values; field != NULL; field = field->next)	2362	return shstr_null;
2694	{	2363	}
2695	if (field->key != canonical_key)	2364
		2365	void
		2366	object::kv_set (const shstr &key, const shstr &value)
		2367	{
		2368	for (key_value *kv = key_values; kv; kv = kv->next)
		2369	if (kv->key == key)
2696	{	2370	{
2697	last = field;	2371	kv->value = value;
2698	continue;	2372	return;
2699	}	2373	}
2700		2374
2701	if (value)	2375	key_value *kv = new key_value;
2702	field->value = value;	2376
2703	else	2377	kv->next = key_values;
		2378	kv->key = key;
		2379	kv->value = value;
		2380
		2381	key_values = kv;
		2382	}
		2383
		2384	void
		2385	object::kv_del (const shstr &key)
		2386	{
		2387	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2388	if ((*kvp)->key == key)
2704	{	2389	{
2705	/* Basically, if the archetype has this key set,	2390	key_value *kv = *kvp;
2706	* we need to store the null value so when we save	2391	*kvp = (*kvp)->next;
2707	* it, we save the empty value so that when we load,	2392	delete kv;
2708	* we get this value back again.	2393	return;
2709	*/
2710	if (get_ob_key_link (&op->arch->clone, canonical_key))
2711	field->value = 0;
2712	else
2713	{
2714	if (last)
2715	last->next = field->next;
2716	else
2717	op->key_values = field->next;
2718
2719	delete field;
2720	}
2721	}	2394	}
2722	return TRUE;
2723	}
2724	/* IF we get here, key doesn't exist */
2725
2726	/* No field, we'll have to add it. */
2727
2728	if (!add_key)
2729	{
2730	return FALSE;
2731	}
2732	/* There isn't any good reason to store a null
2733	* value in the key/value list. If the archetype has
2734	* this key, then we should also have it, so shouldn't
2735	* be here. If user wants to store empty strings,
2736	* should pass in ""
2737	*/
2738	if (value == NULL)
2739	return TRUE;
2740
2741	field = new key_value;
2742
2743	field->key = canonical_key;
2744	field->value = value;
2745	/* Usual prepend-addition. */
2746	field->next = op->key_values;
2747	op->key_values = field;
2748
2749	return TRUE;
2750	}
2751
2752	/*
2753	* Updates the key in op to value.
2754	*
2755	* If add_key is FALSE, this will only update existing keys,
2756	* and not add new ones.
2757	* In general, should be little reason FALSE is ever passed in for add_key
2758	*
2759	* Returns TRUE on success.
2760	*/
2761	int
2762	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2763	{
2764	shstr key_ (key);
2765
2766	return set_ob_key_value_s (op, key_, value, add_key);
2767	}	2395	}
2768		2396
2769	object::depth_iterator::depth_iterator (object *container)	2397	object::depth_iterator::depth_iterator (object *container)
2770	: iterator_base (container)	2398	: iterator_base (container)
2771	{	2399	{
…		…
2785	}	2413	}
2786	else	2414	else
2787	item = item->env;	2415	item = item->env;
2788	}	2416	}
2789		2417
		2418	const char *
		2419	object::flag_desc (char *desc, int len) const
		2420	{
		2421	char *p = desc;
		2422	bool first = true;
		2423
		2424	*p = 0;
		2425
		2426	for (int i = 0; i < NUM_FLAGS; i++)
		2427	{
		2428	if (len <= 10) // magic constant!
		2429	{
		2430	snprintf (p, len, ",...");
		2431	break;
		2432	}
		2433
		2434	if (flag [i])
		2435	{
		2436	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2437	len -= cnt;
		2438	p += cnt;
		2439	first = false;
		2440	}
		2441	}
		2442
		2443	return desc;
		2444	}
		2445
2790	// return a suitable string describing an objetc in enough detail to find it	2446	// return a suitable string describing an object in enough detail to find it
2791	const char *	2447	const char *
2792	object::debug_desc (char *info) const	2448	object::debug_desc (char *info) const
2793	{	2449	{
		2450	char flagdesc[512];
2794	char info2[256 * 3];	2451	char info2[256 * 4];
2795	char *p = info;	2452	char *p = info;
2796		2453
2797	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2454	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s,flags:[%s],type:%d}",
2798	count,	2455	count,
		2456	uuid.c_str (),
2799	&name,	2457	&name,
2800	title ? " " : "",	2458	title ? "\",title:\"" : "",
2801	title ? (const char *)title : "");	2459	title ? (const char *)title : "",
		2460	flag_desc (flagdesc, 512), type);
2802		2461
2803	if (env)	2462	if (!flag[FLAG_REMOVED] && env)
2804	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2463	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2805		2464
2806	if (map)	2465	if (map)
2807	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2466	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2808		2467
2809	return info;	2468	return info;
2810	}	2469	}
2811		2470
2812	const char *	2471	const char *
2813	object::debug_desc () const	2472	object::debug_desc () const
2814	{	2473	{
2815	static char info[256 * 3];	2474	static char info[3][256 * 4];
		2475	static int info_idx;
		2476
2816	return debug_desc (info);	2477	return debug_desc (info [++info_idx % 3]);
2817	}	2478	}
2818		2479
		2480	struct region *
		2481	object::region () const
		2482	{
		2483	return map ? map->region (x, y)
		2484	: region::default_region ();
		2485	}
		2486
		2487	const materialtype_t *
		2488	object::dominant_material () const
		2489	{
		2490	if (materialtype_t *mt = name_to_material (materialname))
		2491	return mt;
		2492
		2493	return name_to_material (shstr_unknown);
		2494	}
		2495
		2496	void
		2497	object::open_container (object *new_container)
		2498	{
		2499	if (container == new_container)
		2500	return;
		2501
		2502	object *old_container = container;
		2503
		2504	if (old_container)
		2505	{
		2506	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2507	return;
		2508
		2509	#if 0
		2510	// remove the "Close old_container" object.
		2511	if (object *closer = old_container->inv)
		2512	if (closer->type == CLOSE_CON)
		2513	closer->destroy ();
		2514	#endif
		2515
		2516	// make sure the container is available
		2517	esrv_send_item (this, old_container);
		2518
		2519	old_container->flag [FLAG_APPLIED] = false;
		2520	container = 0;
		2521
		2522	// client needs item update to make it work, client bug requires this to be separate
		2523	esrv_update_item (UPD_FLAGS, this, old_container);
		2524
		2525	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2526	play_sound (sound_find ("chest_close"));
		2527	}
		2528
		2529	if (new_container)
		2530	{
		2531	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2532	return;
		2533
		2534	// TODO: this does not seem to serve any purpose anymore?
		2535	#if 0
		2536	// insert the "Close Container" object.
		2537	if (archetype *closer = new_container->other_arch)
		2538	{
		2539	object *closer = arch_to_object (new_container->other_arch);
		2540	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2541	new_container->insert (closer);
		2542	}
		2543	#endif
		2544
		2545	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2546
		2547	// make sure the container is available, client bug requires this to be separate
		2548	esrv_send_item (this, new_container);
		2549
		2550	new_container->flag [FLAG_APPLIED] = true;
		2551	container = new_container;
		2552
		2553	// client needs flag change
		2554	esrv_update_item (UPD_FLAGS, this, new_container);
		2555	esrv_send_inventory (this, new_container);
		2556	play_sound (sound_find ("chest_open"));
		2557	}
		2558	// else if (!old_container->env && contr && contr->ns)
		2559	// contr->ns->floorbox_reset ();
		2560	}
		2561
		2562	object *
		2563	object::force_find (const shstr name)
		2564	{
		2565	/* cycle through his inventory to look for the MARK we want to
		2566	* place
		2567	*/
		2568	for (object *tmp = inv; tmp; tmp = tmp->below)
		2569	if (tmp->type == FORCE && tmp->slaying == name)
		2570	return splay (tmp);
		2571
		2572	return 0;
		2573	}
		2574
		2575	void
		2576	object::force_add (const shstr name, int duration)
		2577	{
		2578	if (object *force = force_find (name))
		2579	force->destroy ();
		2580
		2581	object *force = get_archetype (FORCE_NAME);
		2582
		2583	force->slaying = name;
		2584	force->stats.food = 1;
		2585	force->speed_left = -1.f;
		2586
		2587	force->set_speed (duration ? 1.f / duration : 0.f);
		2588	force->flag [FLAG_IS_USED_UP] = true;
		2589	force->flag [FLAG_APPLIED] = true;
		2590
		2591	insert (force);
		2592	}
		2593
		2594	void
		2595	object::play_sound (faceidx sound)
		2596	{
		2597	if (!sound)
		2598	return;
		2599
		2600	if (flag [FLAG_REMOVED])
		2601	return;
		2602
		2603	if (env)
		2604	{
		2605	if (object *pl = in_player ())
		2606	pl->contr->play_sound (sound);
		2607	}
		2608	else
		2609	map->play_sound (sound, x, y);
		2610	}
		2611

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