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Comparing deliantra/server/common/object.C (file contents):
Revision 1.81 by root, Sat Dec 23 13:56:25 2006 UTC vs.
Revision 1.313 by root, Fri Mar 26 00:05:45 2010 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 (©) 2005,2006,2007,2008,2009,2010 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 it under
8	it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
9	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
10	(at your option) any later version.	11	* 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 Affero GNU General Public License
18	along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
20		21	*
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	23	*/
23		24
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>	25	#include <global.h>
28	#include <stdio.h>	26	#include <stdio.h>
29	#include <sys/types.h>	27	#include <sys/types.h>
30	#include <sys/uio.h>	28	#include <sys/uio.h>
31	#include <object.h>	29	#include <object.h>
32	#include <funcpoint.h>	30	#include <sproto.h>
33	#include <loader.h>
34		31
35	#include <bitset>	32	#include <bitset>
36		33
37	int nrofallocobjects = 0;	34	UUID UUID::cur;
38	static UUID uuid;	35	static uint64_t seq_next_save;
39	const uint64 UUID_SKIP = 1<<19;	36	static const uint64 UUID_GAP = 1<<19;
		37	uint32_t mapspace::smellcount = 10000;
40		38
41	object *active_objects; /* List of active objects that need to be processed */	39	objectvec objects;
		40	activevec actives;
42		41
43	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,	42	//+GPL
		43
		44	short freearr_x[SIZEOFFREE] = {
		45	0,
		46	0, 1, 1, 1, 0, -1, -1, -1,
		47	0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1	48	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	};	49	};
46	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,	50	short freearr_y[SIZEOFFREE] = {
		51	0,
		52	-1, -1, 0, 1, 1, 1, 0, -1,
		53	-2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3	54	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
48	};
49	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,
50	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
51	};	55	};
52	int freedir[SIZEOFFREE] = {	56	int freedir[SIZEOFFREE] = {
53	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,	57	0,
		58	1, 2, 3, 4, 5, 6, 7, 8,
		59	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8	60	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
55	};	61	};
56		62
		63	static int maxfree[SIZEOFFREE] = {
		64	0,
		65	9, 10, 13, 14, 17, 18, 21, 22,
		66	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
		67	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		68	};
		69
57	static void	70	static void
58	write_uuid (void)	71	write_uuid (uval64 skip, bool sync)
59	{	72	{
60	char filename1[MAX_BUF], filename2[MAX_BUF];	73	CALL_BEGIN (2);
61		74	CALL_ARG_SV (newSVval64 (skip));
62	sprintf (filename1, "%s/uuid", settings.localdir);	75	CALL_ARG_SV (boolSV (sync));
63	sprintf (filename2, "%s/uuid~", settings.localdir);	76	CALL_CALL ("cf::write_uuid", G_DISCARD);
64		77	CALL_END;
65	FILE *fp;
66
67	if (!(fp = fopen (filename2, "w")))
68	{
69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
70	return;
71	}
72
73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
74	fclose (fp);
75	rename (filename2, filename1);
76	}	78	}
77		79
78	static void	80	static void
79	read_uuid (void)	81	read_uuid ()
80	{	82	{
81	char filename[MAX_BUF];	83	char filename[MAX_BUF];
82		84
83	sprintf (filename, "%s/uuid", settings.localdir);	85	sprintf (filename, "%s/uuid", settings.localdir);
		86
		87	seq_next_save = 0;
84		88
85	FILE *fp;	89	FILE *fp;
86		90
87	if (!(fp = fopen (filename, "r")))	91	if (!(fp = fopen (filename, "r")))
88	{	92	{
89	if (errno == ENOENT)	93	if (errno == ENOENT)
90	{	94	{
91	LOG (llevInfo, "RESET uid to 1\n");	95	LOG (llevInfo, "RESET uid to 1\n");
92	uuid.seq = 0;	96	UUID::cur.seq = 0;
93	write_uuid ();	97	write_uuid (UUID_GAP, true);
94	return;	98	return;
95	}	99	}
96		100
97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	101	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
98	_exit (1);	102	_exit (1);
99	}	103	}
100		104
101	int version;	105	char buf [UUID::MAX_LEN];
102	unsigned long long uid;	106	buf[0] = 0;
103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	107	fgets (buf, sizeof (buf), fp);
		108
		109	if (!UUID::cur.parse (buf))
104	{	110	{
105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	111	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
106	_exit (1);	112	_exit (1);
107	}	113	}
108		114
109	uuid.seq = uid;	115	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
110	write_uuid ();	116
111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);	117	write_uuid (UUID_GAP, true);
112	fclose (fp);	118	fclose (fp);
113	}	119	}
114		120
115	UUID	121	UUID
116	gen_uuid ()	122	UUID::gen ()
117	{	123	{
118	UUID uid;	124	UUID uid;
119		125
120	uid.seq = ++uuid.seq;	126	uid.seq = ++cur.seq;
121		127
122	if (!(uuid.seq & (UUID_SKIP - 1)))	128	if (expect_false (cur.seq >= seq_next_save))
123	write_uuid ();	129	{
		130	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		131	write_uuid (UUID_GAP, false);
		132	}
		133
124		134
125	return uid;	135	return uid;
126	}	136	}
127		137
128	void	138	void
129	init_uuid ()	139	UUID::init ()
130	{	140	{
131	read_uuid ();	141	read_uuid ();
132	}	142	}
133		143
		144	bool
		145	UUID::parse (const char *s)
		146	{
		147	if (*s++ != '<' || *s++ != '1' || *s++ != '.')
		148	return false;
		149
		150	seq = 0;
		151
		152	while (*s != '>')
		153	{
		154	if (*s < '0')
		155	return false;
		156
		157	// this gives nice branchless code with gcc
		158	assert ('0' < 'a' && '0' == 48 && 'a' == 97);
		159	int digit = (*s + (*s & 0x40 ? 9 : 0)) & 15;
		160
		161	seq = (seq << 4) | digit;
		162
		163	++s;
		164	}
		165
		166	return true;
		167	}
		168
		169	char *
		170	UUID::append (char *buf) const
		171	{
		172	*buf++ = '<';
		173	*buf++ = '1';
		174	*buf++ = '.';
		175
		176	uint64_t seq = this->seq;
		177	const int bits = 64;
		178	char nz = 0;
		179	static const char tohex [] = "0123456789abcdef";
		180
		181	// assert (len >= 3 + bits / 4 + 1 + 1);
		182	for (int i = bits / 4; --i; )
		183	{
		184	uint8_t digit = seq >> (bits - 4);
		185
		186	*buf = tohex [digit];
		187	nz |= digit;
		188	buf += nz ? 1 : 0;
		189	seq <<= 4;
		190	}
		191
		192	// last digit is special - always emit
		193	uint8_t digit = seq >> (bits - 4);
		194	*buf++ = tohex [digit];
		195
		196	*buf++ = '>';
		197
		198	return buf;
		199	}
		200
		201	char *
		202	UUID::c_str () const
		203	{
		204	static char buf [MAX_LEN];
		205	*append (buf) = 0;
		206	return buf;
		207	}
		208
134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	209	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
135	static int	210	static bool
136	compare_ob_value_lists_one (const object *wants, const object *has)	211	compare_ob_value_lists_one (const object *wants, const object *has)
137	{	212	{
138	key_value *wants_field;
139
140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	213	/* n-squared behaviour (see kv_get), but I'm hoping both
141	* objects with lists are rare, and lists stay short. If not, use a	214	* objects with lists are rare, and lists stay short. If not, use a
142	* different structure or at least keep the lists sorted...	215	* different structure or at least keep the lists sorted...
143	*/	216	*/
144		217
145	/* For each field in wants, */	218	/* For each field in wants, */
146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	219	for (key_value *kv = wants->key_values; kv; kv = kv->next)
147	{	220	if (has->kv_get (kv->key) != kv->value)
148	key_value *has_field;	221	return false;
149
150	/* Look for a field in has with the same key. */
151	has_field = get_ob_key_link (has, wants_field->key);
152
153	if (has_field == NULL)
154	{
155	/* No field with that name. */
156	return FALSE;
157	}
158
159	/* Found the matching field. */
160	if (has_field->value != wants_field->value)
161	{
162	/* Values don't match, so this half of the comparison is false. */
163	return FALSE;
164	}
165
166	/* If we get here, we found a match. Now for the next field in wants. */
167	}
168		222
169	/* If we get here, every field in wants has a matching field in has. */	223	/* If we get here, every field in wants has a matching field in has. */
170	return TRUE;	224	return true;
171	}	225	}
172		226
173	/* Returns TRUE if ob1 has the same key_values as ob2. */	227	/* Returns TRUE if ob1 has the same key_values as ob2. */
174	static int	228	static bool
175	compare_ob_value_lists (const object *ob1, const object *ob2)	229	compare_ob_value_lists (const object *ob1, const object *ob2)
176	{	230	{
177	/* However, there may be fields in has which aren't partnered in wants,	231	/* However, there may be fields in has which aren't partnered in wants,
178	* so we need to run the comparison *twice*. :(	232	* so we need to run the comparison *twice*. :(
179	*/	233	*/
180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);	234	return compare_ob_value_lists_one (ob1, ob2)
		235	&& compare_ob_value_lists_one (ob2, ob1);
181	}	236	}
182		237
183	/* Function examines the 2 objects given to it, and returns true if	238	/* Function examines the 2 objects given to it, and returns true if
184	* they can be merged together.	239	* they can be merged together.
185	*	240	*
…		…
190	* Check nrof variable *before* calling can_merge()	245	* Check nrof variable *before* calling can_merge()
191	*	246	*
192	* Improvements made with merge: Better checking on potion, and also	247	* Improvements made with merge: Better checking on potion, and also
193	* check weight	248	* check weight
194	*/	249	*/
195
196	bool object::can_merge_slow (object *ob1, object *ob2)	250	bool object::can_merge_slow (object *ob1, object *ob2)
197	{	251	{
198	/* A couple quicksanity checks */	252	/* A couple quick sanity checks */
199	if (ob1 == ob2	253	if (ob1 == ob2
200	|| ob1->type != ob2->type	254	|| ob1->type != ob2->type
201	|| ob1->speed != ob2->speed
202	|| ob1->value != ob2->value	255	|| ob1->value != ob2->value
203	|| ob1->name != ob2->name)	256	|| ob1->name != ob2->name
		257	|| fabs (ob1->speed - ob2->speed) >= MIN_ACTIVE_SPEED)
204	return 0;	258	return 0;
205		259
206	//TODO: this ain't working well, use nicer and correct overflow check
207	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	260	/* Do not merge objects if nrof would overflow, assume nrof
208	* value could not be stored in a sint32 (which unfortunately sometimes is	261	* is always 0 .. 2**31-1 */
209	* used to store nrof).	262	if (ob1->nrof > 0x7fffffff - ob2->nrof)
210	*/
211	if (ob1->nrof + ob2->nrof >= 1UL << 31)
212	return 0;	263	return 0;
213		264
214	/* If the objects have been identified, set the BEEN_APPLIED flag.	265	/* If the objects have been identified, set the BEEN_APPLIED flag.
215	* This is to the comparison of the flags below will be OK. We	266	* This is to the comparison of the flags below will be OK. We
216	* just can't ignore the been applied or identified flags, as they	267	* just can't ignore the been applied or identified flags, as they
217	* are not equal - just if it has been identified, the been_applied	268	* are not equal - just if it has been identified, the been_applied
218	* flags lose any meaning.	269	* flags lose any meaning.
219	*/	270	*/
220	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	271	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	272	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
222		273
223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	274	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	275	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
225		276
226	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()	277	if (ob1->arch->archname != ob2->arch->archname
227	|| ob1->arch != ob2->arch
228	|| ob1->name != ob2->name	278	|| ob1->name != ob2->name
229	|| ob1->title != ob2->title	279	|| ob1->title != ob2->title
230	|| ob1->msg != ob2->msg	280	|| ob1->msg != ob2->msg
231	|| ob1->weight != ob2->weight	281	|| ob1->weight != ob2->weight
232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
234	|| ob1->attacktype != ob2->attacktype	282	|| ob1->attacktype != ob2->attacktype
235	|| ob1->magic != ob2->magic	283	|| ob1->magic != ob2->magic
236	|| ob1->slaying != ob2->slaying	284	|| ob1->slaying != ob2->slaying
237	|| ob1->skill != ob2->skill	285	|| ob1->skill != ob2->skill
238	|| ob1->value != ob2->value	286	|| ob1->value != ob2->value
239	|| ob1->animation_id != ob2->animation_id	287	|| ob1->animation_id != ob2->animation_id
		288	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependend on each other
240	|| ob1->client_type != ob2->client_type	289	|| ob1->client_type != ob2->client_type
241	|| ob1->materialname != ob2->materialname	290	|| ob1->material != ob2->material
242	|| ob1->lore != ob2->lore	291	|| ob1->lore != ob2->lore
243	|| ob1->subtype != ob2->subtype	292	|| ob1->subtype != ob2->subtype
244	|| ob1->move_type != ob2->move_type	293	|| ob1->move_type != ob2->move_type
245	|| ob1->move_block != ob2->move_block	294	|| ob1->move_block != ob2->move_block
246	|| ob1->move_allow != ob2->move_allow	295	|| ob1->move_allow != ob2->move_allow
247	|| ob1->move_on != ob2->move_on	296	|| ob1->move_on != ob2->move_on
248	|| ob1->move_off != ob2->move_off	297	|| ob1->move_off != ob2->move_off
249	|| ob1->move_slow != ob2->move_slow	298	|| ob1->move_slow != ob2->move_slow
250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)	299	|| fabs (ob1->move_slow_penalty - ob2->move_slow_penalty) >= (1.f / 1024.f)
		300	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		301	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
251	return 0;	302	return 0;
252		303
		304	if ((ob1->flag ^ ob2->flag)
		305	.reset (FLAG_INV_LOCKED)
		306	.reset (FLAG_REMOVED)
		307	.any ())
		308	return 0;
		309
253	/* This is really a spellbook check - really, we should	310	/* This is really a spellbook check - we should in general
254	* check all objects in the inventory.	311	* not merge objects with real inventories, as splitting them
		312	* is hard.
255	*/	313	*/
256	if (ob1->inv || ob2->inv)	314	if (ob1->inv || ob2->inv)
257	{	315	{
258	/* if one object has inventory but the other doesn't, not equiv */	316	if (!(ob1->inv && ob2->inv))
259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	317	return 0; /* inventories differ in length */
260	return 0;
261		318
262	/* Now check to see if the two inventory objects could merge */	319	if (ob1->inv->below || ob2->inv->below)
		320	return 0; /* more than one object in inv */
		321
263	if (!object::can_merge (ob1->inv, ob2->inv))	322	if (!object::can_merge (ob1->inv, ob2->inv))
264	return 0;	323	return 0; /* inventory objects differ */
265		324
266	/* inventory ok - still need to check rest of this object to see	325	/* inventory ok - still need to check rest of this object to see
267	* if it is valid.	326	* if it is valid.
268	*/	327	*/
269	}	328	}
…		…
277		336
278	/* Note sure why the following is the case - either the object has to	337	/* Note sure why the following is the case - either the object has to
279	* be animated or have a very low speed. Is this an attempted monster	338	* be animated or have a very low speed. Is this an attempted monster
280	* check?	339	* check?
281	*/	340	*/
282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	341	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
283	return 0;	342	return 0;
284		343
285	switch (ob1->type)	344	switch (ob1->type)
286	{	345	{
287	case SCROLL:	346	case SCROLL:
288	if (ob1->level != ob2->level)	347	if (ob1->level != ob2->level)
289	return 0;	348	return 0;
290	break;	349	break;
291	}	350	}
292		351
293	if (ob1->key_values != NULL || ob2->key_values != NULL)	352	if (ob1->key_values || ob2->key_values)
294	{	353	{
295	/* At least one of these has key_values. */	354	/* At least one of these has key_values. */
296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	355	if ((!ob1->key_values) != (!ob2->key_values))
297	/* One has fields, but the other one doesn't. */	356	return 0; /* One has fields, but the other one doesn't. */
		357
		358	if (!compare_ob_value_lists (ob1, ob2))
298	return 0;	359	return 0;
299	else if (!compare_ob_value_lists (ob1, ob2))
300	return 0;
301	}	360	}
302		361
303	//TODO: generate an event or call into perl for additional checks
304	if (ob1->self || ob2->self)	362	if (ob1->self || ob2->self)
305	{	363	{
306	ob1->optimise ();	364	ob1->optimise ();
307	ob2->optimise ();	365	ob2->optimise ();
308		366
309	if (ob1->self || ob2->self)	367	if (ob1->self || ob2->self)
		368	{
		369	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		370	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		371
		372	if (k1 != k2)
310	return 0;	373	return 0;
		374
		375	if (k1 == 0)
		376	return 1;
		377
		378	if (!cfperl_can_merge (ob1, ob2))
		379	return 0;
		380	}
311	}	381	}
312		382
313	/* Everything passes, must be OK. */	383	/* Everything passes, must be OK. */
314	return 1;	384	return 1;
315	}	385	}
316		386
		387	// find player who can see this object
		388	object *
		389	object::visible_to () const
		390	{
		391	if (client_visible () && !flag [FLAG_REMOVED])
		392	{
		393	// see if we are in a container of sorts
		394	if (env)
		395	{
		396	// the player inventory itself is always visible
		397	if (env->is_player ())
		398	return env;
		399
		400	// else a player could have our env open
		401	object *envest = env->outer_env_or_self ();
		402
		403	// the player itself is always on a map, so we will find him here
		404	// even if our inv is in a player.
		405	if (envest->is_on_map ())
		406	if (object *pl = envest->ms ().player ())
		407	if (pl->container_ () == env)
		408	return pl;
		409	}
		410	else
		411	{
		412	// maybe there is a player standing on the same mapspace
		413	// this will catch the case where "this" is a player
		414	if (object *pl = ms ().player ())
		415	if ((pl->contr->ns && !pl->container_ () && !pl->contr->ns->update_look)
		416	|| pl->container_ () == this)
		417	return pl;
		418	}
		419	}
		420
		421	return 0;
		422	}
		423
		424	// adjust weight per container type ("of holding")
		425	static sint32
		426	weight_adjust_for (object *op, sint32 weight)
		427	{
		428	return op->type == CONTAINER
		429	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		430	: weight;
		431	}
		432
317	/*	433	/*
		434	* adjust_weight(object, weight) adds the specified weight to an object,
		435	* and also updates how much the environment(s) is/are carrying.
		436	*/
		437	static void
		438	adjust_weight (object *op, sint32 weight)
		439	{
		440	while (op)
		441	{
		442	// adjust by actual difference to account for rounding errors
		443	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		444	weight = weight_adjust_for (op, op->carrying)
		445	- weight_adjust_for (op, op->carrying - weight);
		446
		447	if (!weight)
		448	return;
		449
		450	op->carrying += weight;
		451
		452	if (object *pl = op->visible_to ())
		453	if (pl != op) // player is handled lazily
		454	esrv_update_item (UPD_WEIGHT, pl, op);
		455
		456	op = op->env;
		457	}
		458	}
		459
		460	/*
318	* sum_weight() is a recursive function which calculates the weight	461	* this is a recursive function which calculates the weight
319	* an object is carrying. It goes through in figures out how much	462	* an object is carrying. It goes through op and figures out how much
320	* containers are carrying, and sums it up.	463	* containers are carrying, and sums it up.
321	*/	464	*/
322	long	465	void
323	sum_weight (object *op)	466	object::update_weight ()
324	{	467	{
325	long sum;	468	sint32 sum = 0;
326	object *inv;
327		469
328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	470	for (object *op = inv; op; op = op->below)
329	{	471	{
330	if (inv->inv)	472	if (op->inv)
331	sum_weight (inv);	473	op->update_weight ();
332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	474
		475	sum += op->total_weight ();
		476	}
		477
		478	sum = weight_adjust_for (this, sum);
		479
		480	if (sum != carrying)
333	}	481	{
334
335	if (op->type == CONTAINER && op->stats.Str)
336	sum = (sum * (100 - op->stats.Str)) / 100;
337
338	if (op->carrying != sum)
339	op->carrying = sum;	482	carrying = sum;
340		483
341	return sum;	484	if (object *pl = visible_to ())
		485	if (pl != this) // player is handled lazily
		486	esrv_update_item (UPD_WEIGHT, pl, this);
		487	}
342	}	488	}
343		489
344	/**	490	/*
345	* Return the outermost environment object for a given object.	491	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
346	*/	492	*/
347
348	object *
349	object_get_env_recursive (object *op)
350	{
351	while (op->env != NULL)
352	op = op->env;
353	return op;
354	}
355
356	/*
357	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
358	* Some error messages.
359	* The result of the dump is stored in the static global errmsg array.
360	*/
361
362	char *	493	char *
363	dump_object (object *op)	494	dump_object (object *op)
364	{	495	{
365	if (!op)	496	if (!op)
366	return strdup ("[NULLOBJ]");	497	return strdup ("[NULLOBJ]");
367		498
368	object_freezer freezer;	499	object_freezer freezer;
369	save_object (freezer, op, 3);	500	op->write (freezer);
370	return freezer.as_string ();	501	return freezer.as_string ();
371	}	502	}
372		503
373	/*	504	char *
374	* get_nearest_part(multi-object, object 2) returns the part of the	505	object::as_string ()
375	* multi-object 1 which is closest to the second object.
376	* If it's not a multi-object, it is returned.
377	*/
378
379	object *
380	get_nearest_part (object *op, const object *pl)
381	{	506	{
382	object *tmp, *closest;	507	return dump_object (this);
383	int last_dist, i;
384
385	if (op->more == NULL)
386	return op;
387	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
388	if ((i = distance (tmp, pl)) < last_dist)
389	closest = tmp, last_dist = i;
390	return closest;
391	}	508	}
392		509
393	/*	510	/*
394	* Returns the object which has the count-variable equal to the argument.	511	* Returns the object which has the count-variable equal to the argument.
		512	* VERRRY slow.
395	*/	513	*/
396
397	object *	514	object *
398	find_object (tag_t i)	515	find_object (tag_t i)
399	{	516	{
400	for (object *op = object::first; op; op = op->next)	517	for_all_objects (op)
401	if (op->count == i)	518	if (op->count == i)
402	return op;	519	return op;
		520
		521	return 0;
		522	}
		523
		524	/*
		525	* Returns the object which has the uuid equal to the argument.
		526	* MOAR VERRRY slow.
		527	*/
		528
		529	object *
		530	find_object_uuid (UUID i)
		531	{
		532	for_all_objects (op)
		533	if (op->uuid == i)
		534	return op;
403		535
404	return 0;	536	return 0;
405	}	537	}
406		538
407	/*	539	/*
408	* Returns the first object which has a name equal to the argument.	540	* Returns the first object which has a name equal to the argument.
409	* Used only by the patch command, but not all that useful.	541	* Used only by the patch command, but not all that useful.
410	* Enables features like "patch <name-of-other-player> food 999"	542	* Enables features like "patch <name-of-other-player> food 999"
411	*/	543	*/
412
413	object *	544	object *
414	find_object_name (const char *str)	545	find_object_name (const char *str)
415	{	546	{
416	shstr_cmp str_ (str);	547	shstr_cmp str_ (str);
417	object *op;
418		548
419	for (op = object::first; op != NULL; op = op->next)	549	if (str_)
		550	for_all_objects (op)
420	if (op->name == str_)	551	if (op->name == str_)
421	break;	552	return op;
422		553
423	return op;	554	return 0;
424	}
425
426	void
427	free_all_object_data ()
428	{
429	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
430	}	555	}
431		556
432	/*	557	/*
433	* Sets the owner and sets the skill and exp pointers to owner's current	558	* Sets the owner and sets the skill and exp pointers to owner's current
434	* skill and experience objects.	559	* skill and experience objects.
		560	* ACTUALLY NO! investigate! TODO
435	*/	561	*/
436	void	562	void
437	object::set_owner (object *owner)	563	object::set_owner (object *owner)
438	{	564	{
		565	// allow objects which own objects
439	if (!owner)	566	if (owner)
440	return;
441
442	/* next line added to allow objects which own objects */
443	/* Add a check for ownercounts in here, as I got into an endless loop
444	* with the fireball owning a poison cloud which then owned the
445	* fireball. I believe that was caused by one of the objects getting
446	* freed and then another object replacing it. Since the ownercounts
447	* didn't match, this check is valid and I believe that cause is valid.
448	*/
449	while (owner->owner)	567	while (owner->owner)
450	owner = owner->owner;	568	owner = owner->owner;
		569
		570	if (flag [FLAG_FREED])
		571	{
		572	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		573	return;
		574	}
451		575
452	this->owner = owner;	576	this->owner = owner;
		577	}
		578
		579	int
		580	object::slottype () const
		581	{
		582	if (type == SKILL)
		583	{
		584	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		585	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		586	}
		587	else
		588	{
		589	if (slot [body_combat].info) return slot_combat;
		590	if (slot [body_range ].info) return slot_ranged;
		591	}
		592
		593	return slot_none;
		594	}
		595
		596	bool
		597	object::change_weapon (object *ob)
		598	{
		599	if (current_weapon == ob)
		600	return true;
		601
		602	if (chosen_skill)
		603	chosen_skill->flag [FLAG_APPLIED] = false;
		604
		605	current_weapon = ob;
		606	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		607
		608	if (chosen_skill)
		609	chosen_skill->flag [FLAG_APPLIED] = true;
		610
		611	update_stats ();
		612
		613	if (ob)
		614	{
		615	// now check wether any body locations became invalid, in which case
		616	// we cannot apply the weapon at the moment.
		617	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		618	if (slot[i].used < 0)
		619	{
		620	current_weapon = chosen_skill = 0;
		621	update_stats ();
		622
		623	new_draw_info_format (NDI_UNIQUE, 0, this,
		624	"You try to balance all your items at once, "
		625	"but the %s is just too much for your body. "
		626	"[You need to unapply some items first - use the 'body' command to see "
		627	"how many items you cna wera on a specific body part.]", &ob->name);
		628	return false;
		629	}
		630
		631	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		632	}
		633	else
		634	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		635
		636	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		637	{
		638	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		639	&name, ob->debug_desc ());
		640	return false;
		641	}
		642
		643	return true;
453	}	644	}
454		645
455	/* Zero the key_values on op, decrementing the shared-string	646	/* Zero the key_values on op, decrementing the shared-string
456	* refcounts and freeing the links.	647	* refcounts and freeing the links.
457	*/	648	*/
458	static void	649	static void
459	free_key_values (object *op)	650	free_key_values (object *op)
460	{	651	{
461	for (key_value *i = op->key_values; i != 0;)	652	for (key_value *i = op->key_values; i; )
462	{	653	{
463	key_value *next = i->next;	654	key_value *next = i->next;
464	delete i;	655	delete i;
465		656
466	i = next;	657	i = next;
…		…
478	* will point at garbage.	669	* will point at garbage.
479	*/	670	*/
480	void	671	void
481	object::copy_to (object *dst)	672	object::copy_to (object *dst)
482	{	673	{
483	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);	674	dst->remove ();
484	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
485
486	*(object_copy *)dst = *this;	675	*(object_copy *)dst = *this;
487		676	dst->flag [FLAG_REMOVED] = true;
488	if (self || cb)
489	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
490
491	if (is_freed)
492	SET_FLAG (dst, FLAG_FREED);
493
494	if (is_removed)
495	SET_FLAG (dst, FLAG_REMOVED);
496
497	if (speed < 0)
498	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
499		677
500	/* Copy over key_values, if any. */	678	/* Copy over key_values, if any. */
501	if (key_values)	679	if (key_values)
502	{	680	{
503	key_value *tail = 0;	681	key_value *tail = 0;
504	key_value *i;
505
506	dst->key_values = 0;	682	dst->key_values = 0;
507		683
508	for (i = key_values; i; i = i->next)	684	for (key_value *i = key_values; i; i = i->next)
509	{	685	{
510	key_value *new_link = new key_value;	686	key_value *new_link = new key_value;
511		687
512	new_link->next = 0;	688	new_link->next = 0;
513	new_link->key = i->key;	689	new_link->key = i->key;
514	new_link->value = i->value;	690	new_link->value = i->value;
515		691
516	/* Try and be clever here, too. */	692	/* Try and be clever here, too. */
517	if (!dst->key_values)	693	if (!dst->key_values)
518	{	694	{
…		…
525	tail = new_link;	701	tail = new_link;
526	}	702	}
527	}	703	}
528	}	704	}
529		705
530	update_ob_speed (dst);	706	dst->activate ();
		707	}
		708
		709	void
		710	object::instantiate ()
		711	{
		712	if (!uuid.seq) // HACK
		713	uuid = UUID::gen ();
		714
		715	// TODO: unclean state changes, should nt be done in copy_to AND instantiate
		716	if (flag [FLAG_RANDOM_SPEED] && speed)
		717	speed_left = - speed - rndm (); // TODO animation
		718	else
		719	speed_left = -1.;
		720
		721	/* copy the body_info to the body_used - this is only really
		722	* need for monsters, but doesn't hurt to do it for everything.
		723	* by doing so, when a monster is created, it has good starting
		724	* values for the body_used info, so when items are created
		725	* for it, they can be properly equipped.
		726	*/
		727	for (int i = NUM_BODY_LOCATIONS; i--; )
		728	slot[i].used = slot[i].info;
		729
		730	attachable::instantiate ();
531	}	731	}
532		732
533	object *	733	object *
534	object::clone ()	734	object::clone ()
535	{	735	{
536	object *neu = create ();	736	object *neu = create ();
537	copy_to (neu);	737	copy_to (neu);
		738
		739	// TODO: unclean state changes, should not be done in clone AND instantiate
		740	if (neu->flag [FLAG_RANDOM_SPEED] && neu->speed)
		741	neu->speed_left = - neu->speed - rndm (); // TODO animation
		742
		743	neu->map = map; // not copied by copy_to
538	return neu;	744	return neu;
539	}	745	}
540		746
541	/*	747	/*
542	* If an object with the IS_TURNABLE() flag needs to be turned due	748	* If an object with the IS_TURNABLE() flag needs to be turned due
543	* to the closest player being on the other side, this function can	749	* to the closest player being on the other side, this function can
544	* be called to update the face variable, _and_ how it looks on the map.	750	* be called to update the face variable, _and_ how it looks on the map.
545	*/	751	*/
546
547	void	752	void
548	update_turn_face (object *op)	753	update_turn_face (object *op)
549	{	754	{
550	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	755	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
551	return;	756	return;
		757
552	SET_ANIMATION (op, op->direction);	758	SET_ANIMATION (op, op->direction);
553	update_object (op, UP_OBJ_FACE);	759	update_object (op, UP_OBJ_FACE);
554	}	760	}
555		761
556	/*	762	/*
557	* Updates the speed of an object. If the speed changes from 0 to another	763	* Updates the speed of an object. If the speed changes from 0 to another
558	* value, or vice versa, then add/remove the object from the active list.	764	* value, or vice versa, then add/remove the object from the active list.
559	* This function needs to be called whenever the speed of an object changes.	765	* This function needs to be called whenever the speed of an object changes.
560	*/	766	*/
561	void	767	void
562	update_ob_speed (object *op)	768	object::set_speed (float speed)
563	{	769	{
564	extern int arch_init;	770	this->speed = speed;
565		771
566	/* No reason putting the archetypes objects on the speed list,	772	if (has_active_speed ())
567	* since they never really need to be updated.	773	activate ();
568	*/
569
570	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
571	{
572	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
573	#ifdef MANY_CORES
574	abort ();
575	#else
576	op->speed = 0;
577	#endif
578	}
579
580	if (arch_init)
581	return;
582
583	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
584	{
585	/* If already on active list, don't do anything */
586	if (op->active_next || op->active_prev || op == active_objects)
587	return;
588
589	/* process_events() expects us to insert the object at the beginning
590	* of the list. */
591	op->active_next = active_objects;
592
593	if (op->active_next != NULL)
594	op->active_next->active_prev = op;
595
596	active_objects = op;
597	}
598	else	774	else
599	{	775	deactivate ();
600	/* If not on the active list, nothing needs to be done */
601	if (!op->active_next && !op->active_prev && op != active_objects)
602	return;
603
604	if (op->active_prev == NULL)
605	{
606	active_objects = op->active_next;
607
608	if (op->active_next != NULL)
609	op->active_next->active_prev = NULL;
610	}
611	else
612	{
613	op->active_prev->active_next = op->active_next;
614
615	if (op->active_next)
616	op->active_next->active_prev = op->active_prev;
617	}
618
619	op->active_next = NULL;
620	op->active_prev = NULL;
621	}
622	}
623
624	/* This function removes object 'op' from the list of active
625	* objects.
626	* This should only be used for style maps or other such
627	* reference maps where you don't want an object that isn't
628	* in play chewing up cpu time getting processed.
629	* The reverse of this is to call update_ob_speed, which
630	* will do the right thing based on the speed of the object.
631	*/
632	void
633	remove_from_active_list (object *op)
634	{
635	/* If not on the active list, nothing needs to be done */
636	if (!op->active_next && !op->active_prev && op != active_objects)
637	return;
638
639	if (op->active_prev == NULL)
640	{
641	active_objects = op->active_next;
642	if (op->active_next != NULL)
643	op->active_next->active_prev = NULL;
644	}
645	else
646	{
647	op->active_prev->active_next = op->active_next;
648	if (op->active_next)
649	op->active_next->active_prev = op->active_prev;
650	}
651	op->active_next = NULL;
652	op->active_prev = NULL;
653	}	776	}
654		777
655	/*	778	/*
656	* update_object() updates the the map.	779	* update_object() updates the the map.
657	* It takes into account invisible objects (and represent squares covered	780	* It takes into account invisible objects (and represent squares covered
…		…
670	* UP_OBJ_FACE: only the objects face has changed.	793	* UP_OBJ_FACE: only the objects face has changed.
671	*/	794	*/
672	void	795	void
673	update_object (object *op, int action)	796	update_object (object *op, int action)
674	{	797	{
675	MoveType move_on, move_off, move_block, move_slow;	798	if (!op)
676
677	if (op == NULL)
678	{	799	{
679	/* this should never happen */	800	/* this should never happen */
680	LOG (llevDebug, "update_object() called for NULL object.\n");	801	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
681	return;	802	return;
682	}	803	}
683		804
684	if (op->env)	805	if (!op->is_on_map ())
685	{	806	{
686	/* Animation is currently handled by client, so nothing	807	/* Animation is currently handled by client, so nothing
687	* to do in this case.	808	* to do in this case.
688	*/	809	*/
689	return;	810	return;
690	}	811	}
691		812
692	/* If the map is saving, don't do anything as everything is
693	* going to get freed anyways.
694	*/
695	if (!op->map || op->map->in_memory == MAP_SAVING)
696	return;
697
698	/* make sure the object is within map boundaries */	813	/* make sure the object is within map boundaries */
699	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	814	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
700	{	815	{
701	LOG (llevError, "update_object() called for object out of map!\n");	816	LOG (llevError, "update_object() called for object out of map!\n");
702	#ifdef MANY_CORES	817	#ifdef MANY_CORES
703	abort ();	818	abort ();
704	#endif	819	#endif
705	return;	820	return;
706	}	821	}
707		822
708	mapspace &m = op->ms ();	823	mapspace &m = op->ms ();
709		824
710	if (m.flags_ & P_NEED_UPDATE)	825	if (!(m.flags_ & P_UPTODATE))
711	/* nop */;	826	/* nop */;
712	else if (action == UP_OBJ_INSERT)	827	else if (action == UP_OBJ_INSERT)
713	{	828	{
		829	#if 0
714	// this is likely overkill, TODO: revisit (schmorp)	830	// this is likely overkill, TODO: revisit (schmorp)
715	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))	831	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
716	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))	832	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
717	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))	833	|| (op->is_player () && !(m.flags_ & P_PLAYER))
718	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))	834	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
719	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))	835	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
720	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))	836	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
721	|| (m.move_on | op->move_on ) != m.move_on	837	|| (m.move_on | op->move_on ) != m.move_on
722	|| (m.move_off | op->move_off ) != m.move_off	838	|| (m.move_off | op->move_off ) != m.move_off
723	|| (m.move_slow | op->move_slow) != m.move_slow	839	|| (m.move_slow | op->move_slow) != m.move_slow
724	/* This isn't perfect, but I don't expect a lot of objects to	840	/* This isn't perfect, but I don't expect a lot of objects to
725	* to have move_allow right now.	841	* have move_allow right now.
726	*/	842	*/
727	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block	843	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
		844	m.invalidate ();
		845	#else
728	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)	846	// the above is not strong enough a test to skip updating. los maybe? TODO (schmorp)
729	m.flags_ = P_NEED_UPDATE;	847	m.invalidate ();
		848	#endif
730	}	849	}
731	/* if the object is being removed, we can't make intelligent	850	/* if the object is being removed, we can't make intelligent
732	* decisions, because remove_ob can't really pass the object	851	* decisions, because remove_ob can't really pass the object
733	* that is being removed.	852	* that is being removed.
734	*/	853	*/
735	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	854	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
736	m.flags_ = P_NEED_UPDATE;	855	m.invalidate ();
737	else if (action == UP_OBJ_FACE)	856	else if (action == UP_OBJ_FACE)
738	/* Nothing to do for that case */ ;	857	/* Nothing to do for that case */ ;
739	else	858	else
740	LOG (llevError, "update_object called with invalid action: %d\n", action);	859	LOG (llevError, "update_object called with invalid action: %d\n", action);
741		860
742	if (op->more)	861	if (op->more)
743	update_object (op->more, action);	862	update_object (op->more, action);
744	}	863	}
745		864
746	object::vector object::mortals;
747	object::vector object::objects; // not yet used
748	object *object::first;
749
750	void object::free_mortals ()
751	{
752	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
753	if ((*i)->refcnt)
754	++i; // further delay freeing
755	else
756	{
757	delete *i;
758	mortals.erase (i);
759	}
760	}
761
762	object::object ()	865	object::object ()
763	{	866	{
764	SET_FLAG (this, FLAG_REMOVED);	867	SET_FLAG (this, FLAG_REMOVED);
765		868
766	expmul = 1.0;	869	//expmul = 1.0; declared const for the time being
767	face = blank_face;	870	face = blank_face;
		871	material = MATERIAL_NULL;
768	}	872	}
769		873
770	object::~object ()	874	object::~object ()
771	{	875	{
		876	unlink ();
		877
772	free_key_values (this);	878	free_key_values (this);
773	}	879	}
774		880
		881	static int object_count;
		882
775	void object::link ()	883	void object::link ()
776	{	884	{
		885	assert (!index);//D
		886	uuid = UUID::gen ();
777	count = ++ob_count;	887	count = ++object_count;
778	uuid = gen_uuid ();
779		888
780	prev = 0;	889	refcnt_inc ();
781	next = object::first;	890	objects.insert (this);
782
783	if (object::first)
784	object::first->prev = this;
785
786	object::first = this;
787	}	891	}
788		892
789	void object::unlink ()	893	void object::unlink ()
790	{	894	{
791	if (this == object::first)	895	if (!index)
792	object::first = next;	896	return;
793		897
794	/* Remove this object from the list of used objects */	898	objects.erase (this);
795	if (prev) prev->next = next;	899	refcnt_dec ();
796	if (next) next->prev = prev;	900	}
797		901
798	prev = 0;	902	void
799	next = 0;	903	object::activate ()
		904	{
		905	/* If already on active list, don't do anything */
		906	if (active)
		907	return;
		908
		909	if (has_active_speed ())
		910	{
		911	if (flag [FLAG_FREED])
		912	LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
		913
		914	actives.insert (this);
		915	}
		916	}
		917
		918	void
		919	object::activate_recursive ()
		920	{
		921	activate ();
		922
		923	for (object *op = inv; op; op = op->below)
		924	op->activate_recursive ();
		925	}
		926
		927	/* This function removes object 'op' from the list of active
		928	* objects.
		929	* This should only be used for style maps or other such
		930	* reference maps where you don't want an object that isn't
		931	* in play chewing up cpu time getting processed.
		932	* The reverse of this is to call update_ob_speed, which
		933	* will do the right thing based on the speed of the object.
		934	*/
		935	void
		936	object::deactivate ()
		937	{
		938	/* If not on the active list, nothing needs to be done */
		939	if (!active)
		940	return;
		941
		942	actives.erase (this);
		943	}
		944
		945	void
		946	object::deactivate_recursive ()
		947	{
		948	for (object *op = inv; op; op = op->below)
		949	op->deactivate_recursive ();
		950
		951	deactivate ();
		952	}
		953
		954	void
		955	object::set_flag_inv (int flag, int value)
		956	{
		957	for (object *op = inv; op; op = op->below)
		958	{
		959	op->flag [flag] = value;
		960	op->set_flag_inv (flag, value);
		961	}
		962	}
		963
		964	/*
		965	* Remove and free all objects in the inventory of the given object.
		966	* object.c ?
		967	*/
		968	void
		969	object::destroy_inv (bool drop_to_ground)
		970	{
		971	// need to check first, because the checks below might segfault
		972	// as we might be on an invalid mapspace and crossfire code
		973	// is too buggy to ensure that the inventory is empty.
		974	// corollary: if you create arrows etc. with stuff in its inventory,
		975	// cf will crash below with off-map x and y
		976	if (!inv)
		977	return;
		978
		979	/* Only if the space blocks everything do we not process -
		980	* if some form of movement is allowed, let objects
		981	* drop on that space.
		982	*/
		983	if (!drop_to_ground
		984	|| !map
		985	|| map->in_memory != MAP_ACTIVE
		986	|| map->no_drop
		987	|| ms ().move_block == MOVE_ALL)
		988	{
		989	while (inv)
		990	inv->destroy ();
		991	}
		992	else
		993	{ /* Put objects in inventory onto this space */
		994	while (inv)
		995	{
		996	object *op = inv;
		997
		998	if (op->flag [FLAG_STARTEQUIP]
		999	|| op->flag [FLAG_NO_DROP]
		1000	|| op->type == RUNE
		1001	|| op->type == TRAP
		1002	|| op->flag [FLAG_IS_A_TEMPLATE]
		1003	|| op->flag [FLAG_DESTROY_ON_DEATH])
		1004	op->destroy ();
		1005	else
		1006	map->insert (op, x, y);
		1007	}
		1008	}
800	}	1009	}
801		1010
802	object *object::create ()	1011	object *object::create ()
803	{	1012	{
804	object *op = new object;	1013	object *op = new object;
805	op->link ();	1014	op->link ();
806	return op;	1015	return op;
807	}	1016	}
808		1017
809	/*	1018	static struct freed_map : maptile
810	* free_object() frees everything allocated by an object, removes
811	* it from the list of used objects, and puts it on the list of
812	* free objects. The IS_FREED() flag is set in the object.
813	* The object must have been removed by remove_ob() first for
814	* this function to succeed.
815	*
816	* If destroy_inventory is set, free inventory as well. Else drop items in
817	* inventory to the ground.
818	*/
819	void object::destroy (bool destroy_inventory)
820	{	1019	{
821	if (QUERY_FLAG (this, FLAG_FREED))	1020	freed_map ()
		1021	{
		1022	path = "<freed objects map>";
		1023	name = "/internal/freed_objects_map";
		1024	width = 3;
		1025	height = 3;
		1026	no_drop = 1;
		1027	no_reset = 1;
		1028
		1029	alloc ();
		1030	in_memory = MAP_ACTIVE;
		1031	}
		1032
		1033	~freed_map ()
		1034	{
		1035	destroy ();
		1036	}
		1037	} freed_map; // freed objects are moved here to avoid crashes
		1038
		1039	void
		1040	object::do_destroy ()
		1041	{
		1042	if (flag [FLAG_IS_LINKED])
		1043	remove_link ();
		1044
		1045	if (flag [FLAG_FRIENDLY])
		1046	remove_friendly_object (this);
		1047
		1048	remove ();
		1049
		1050	attachable::do_destroy ();
		1051
		1052	deactivate ();
		1053	unlink ();
		1054
		1055	flag [FLAG_FREED] = 1;
		1056
		1057	// hack to ensure that freed objects still have a valid map
		1058	map = &freed_map;
		1059	x = 1;
		1060	y = 1;
		1061
		1062	if (more)
		1063	{
		1064	more->destroy ();
		1065	more = 0;
		1066	}
		1067
		1068	head = 0;
		1069
		1070	// clear those pointers that likely might cause circular references
		1071	owner = 0;
		1072	enemy = 0;
		1073	attacked_by = 0;
		1074	current_weapon = 0;
		1075	}
		1076
		1077	void
		1078	object::destroy ()
		1079	{
		1080	if (destroyed ())
822	return;	1081	return;
823		1082
824	if (QUERY_FLAG (this, FLAG_FRIENDLY))	1083	if (!is_head () && !head->destroyed ())
825	remove_friendly_object (this);
826
827	if (!QUERY_FLAG (this, FLAG_REMOVED))
828	remove ();
829
830	SET_FLAG (this, FLAG_FREED);
831
832	if (more)
833	{
834	more->destroy (destroy_inventory);
835	more = 0;
836	}
837
838	if (inv)
839	{
840	/* Only if the space blocks everything do we not process -
841	* if some form of movement is allowed, let objects
842	* drop on that space.
843	*/
844	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
845	{
846	object *op = inv;
847
848	while (op)
849	{
850	object *tmp = op->below;
851	op->destroy (destroy_inventory);
852	op = tmp;
853	}
854	}
855	else
856	{ /* Put objects in inventory onto this space */
857	object *op = inv;
858
859	while (op)
860	{
861	object *tmp = op->below;
862
863	op->remove ();
864
865	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
866	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
867	op->destroy ();
868	else
869	{
870	op->x = x;
871	op->y = y;
872	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
873	}
874
875	op = tmp;
876	}
877	}
878	}
879
880	// hack to ensure that freed objects still have a valid map
881	{
882	static maptile *freed_map; // freed objects are moved here to avoid crashes
883
884	if (!freed_map)
885	{	1084	{
886	freed_map = new maptile;	1085	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
887		1086	head->destroy ();
888	freed_map->name = "/internal/freed_objects_map";	1087	return;
889	freed_map->width = 3;
890	freed_map->height = 3;
891
892	freed_map->allocate ();
893	}	1088	}
894		1089
895	map = freed_map;	1090	destroy_inv (false);
896	x = 1;
897	y = 1;
898	}
899		1091
900	// clear those pointers that likely might have circular references to us	1092	if (is_head ())
901	owner = 0;	1093	if (sound_destroy)
902	enemy = 0;	1094	play_sound (sound_destroy);
903	attacked_by = 0;	1095	else if (flag [FLAG_MONSTER])
		1096	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
904		1097
905	// only relevant for players(?), but make sure of it anyways	1098	attachable::destroy ();
906	contr = 0;
907
908	/* Remove object from the active list */
909	speed = 0;
910	update_ob_speed (this);
911
912	unlink ();
913
914	mortals.push_back (this);
915	}
916
917	/*
918	* sub_weight() recursively (outwards) subtracts a number from the
919	* weight of an object (and what is carried by it's environment(s)).
920	*/
921	void
922	sub_weight (object *op, signed long weight)
923	{
924	while (op != NULL)
925	{
926	if (op->type == CONTAINER)
927	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
928
929	op->carrying -= weight;
930	op = op->env;
931	}
932	}	1099	}
933		1100
934	/* op->remove ():	1101	/* op->remove ():
935	* This function removes the object op from the linked list of objects	1102	* This function removes the object op from the linked list of objects
936	* which it is currently tied to. When this function is done, the	1103	* which it is currently tied to. When this function is done, the
937	* object will have no environment. If the object previously had an	1104	* object will have no environment. If the object previously had an
938	* environment, the x and y coordinates will be updated to	1105	* environment, the x and y coordinates will be updated to
939	* the previous environment.	1106	* the previous environment.
940	* Beware: This function is called from the editor as well!
941	*/	1107	*/
942	void	1108	void
943	object::remove ()	1109	object::do_remove ()
944	{	1110	{
945	object *tmp, *last = 0;	1111	if (flag [FLAG_REMOVED])
946	object *otmp;
947
948	int check_walk_off;
949
950	if (QUERY_FLAG (this, FLAG_REMOVED))
951	return;	1112	return;
952		1113
953	SET_FLAG (this, FLAG_REMOVED);	1114	INVOKE_OBJECT (REMOVE, this);
		1115
		1116	flag [FLAG_REMOVED] = true;
954		1117
955	if (more)	1118	if (more)
956	more->remove ();	1119	more->remove ();
957		1120
958	/*	1121	/*
959	* In this case, the object to be removed is in someones	1122	* In this case, the object to be removed is in someones
960	* inventory.	1123	* inventory.
961	*/	1124	*/
962	if (env)	1125	if (env)
963	{	1126	{
964	if (nrof)	1127	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
965	sub_weight (env, weight * nrof);	1128	if (object *pl = visible_to ())
966	else	1129	esrv_del_item (pl->contr, count);
967	sub_weight (env, weight + carrying);	1130	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
968		1131
969	/* NO_FIX_PLAYER is set when a great many changes are being	1132	adjust_weight (env, -total_weight ());
970	* made to players inventory. If set, avoiding the call
971	* to save cpu time.
972	*/
973	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
974	otmp->update_stats ();
975		1133
976	if (above != NULL)	1134	object *pl = in_player ();
977	above->below = below;
978	else
979	env->inv = below;
980
981	if (below != NULL)
982	below->above = above;
983		1135
984	/* we set up values so that it could be inserted into	1136	/* we set up values so that it could be inserted into
985	* the map, but we don't actually do that - it is up	1137	* the map, but we don't actually do that - it is up
986	* to the caller to decide what we want to do.	1138	* to the caller to decide what we want to do.
987	*/	1139	*/
988	x = env->x, y = env->y;
989	map = env->map;	1140	map = env->map;
990	above = 0, below = 0;	1141	x = env->x;
991	env = 0;	1142	y = env->y;
992	}
993	else if (map)
994	{
995	/* Re did the following section of code - it looks like it had
996	* lots of logic for things we no longer care about
997	*/
998		1143
999	/* link the object above us */	1144	// make sure cmov optimisation is applicable
1000	if (above)	1145	*(above ? &above->below : &env->inv) = below;
1001	above->below = below;	1146	*(below ? &below->above : &above ) = above; // &above is just a dummy
1002	else
1003	map->at (x, y).top = below; /* we were top, set new top */
1004
1005	/* Relink the object below us, if there is one */
1006	if (below)
1007	below->above = above;
1008	else
1009	{
1010	/* Nothing below, which means we need to relink map object for this space
1011	* use translated coordinates in case some oddness with map tiling is
1012	* evident
1013	*/
1014	if (GET_MAP_OB (map, x, y) != this)
1015	{
1016	char *dump = dump_object (this);
1017	LOG (llevError,
1018	"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);
1019	free (dump);
1020	dump = dump_object (GET_MAP_OB (map, x, y));
1021	LOG (llevError, "%s\n", dump);
1022	free (dump);
1023	}
1024
1025	map->at (x, y).bottom = above; /* goes on above it. */
1026	}
1027		1147
1028	above = 0;	1148	above = 0;
1029	below = 0;	1149	below = 0;
		1150	env = 0;
		1151
		1152	if (pl && pl->is_player ())
		1153	{
		1154	pl->contr->queue_stats_update ();
		1155
		1156	if (glow_radius && pl->is_on_map ())
		1157	update_all_los (pl->map, pl->x, pl->y);
		1158	}
		1159	}
		1160	else if (map)
		1161	{
		1162	map->dirty = true;
		1163	mapspace &ms = this->ms ();
		1164
		1165	if (object *pl = ms.player ())
		1166	{
		1167	if (is_player ())
		1168	{
		1169	if (!flag [FLAG_WIZPASS])
		1170	ms.smell = ++mapspace::smellcount; // remember the smell of the player
		1171
		1172	// leaving a spot always closes any open container on the ground
		1173	if (container && !container->env)
		1174	// this causes spurious floorbox updates, but it ensures
		1175	// that the CLOSE event is being sent.
		1176	close_container ();
		1177
		1178	--map->players;
		1179	map->touch ();
		1180	}
		1181	else if (pl->container_ () == this)
		1182	{
		1183	// removing a container should close it
		1184	close_container ();
		1185	}
		1186
		1187	esrv_del_item (pl->contr, count);
		1188	}
		1189
		1190	/* link the object above us */
		1191	// re-link, make sure compiler can easily use cmove
		1192	*(above ? &above->below : &ms.top) = below;
		1193	*(below ? &below->above : &ms.bot) = above;
		1194
		1195	above = 0;
		1196	below = 0;
		1197
		1198	ms.invalidate ();
1030		1199
1031	if (map->in_memory == MAP_SAVING)	1200	if (map->in_memory == MAP_SAVING)
1032	return;	1201	return;
1033		1202
1034	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);	1203	int check_walk_off = !flag [FLAG_NO_APPLY];
1035		1204
1036	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)	1205	if (object *pl = ms.player ())
1037	{	1206	{
1038	/* No point updating the players look faces if he is the object	1207	if (pl->container_ () == this)
1039	* being removed.
1040	*/
1041
1042	if (tmp->type == PLAYER && tmp != this)
1043	{
1044	/* If a container that the player is currently using somehow gets	1208	/* If a container that the player is currently using somehow gets
1045	* removed (most likely destroyed), update the player view	1209	* removed (most likely destroyed), update the player view
1046	* appropriately.	1210	* appropriately.
1047	*/	1211	*/
1048	if (tmp->container == this)	1212	pl->close_container ();
1049	{
1050	CLEAR_FLAG (this, FLAG_APPLIED);
1051	tmp->container = 0;
1052	}
1053		1213
		1214	//TODO: the floorbox prev/next might need updating
		1215	//esrv_del_item (pl->contr, count);
		1216	//TODO: update floorbox to preserve ordering
		1217	if (pl->contr->ns)
1054	tmp->contr->ns->floorbox_update ();	1218	pl->contr->ns->floorbox_update ();
		1219	}
		1220
		1221	if (check_walk_off)
		1222	for (object *above, *tmp = ms.bot; tmp; tmp = above)
		1223	{
		1224	above = tmp->above;
		1225
		1226	/* No point updating the players look faces if he is the object
		1227	* being removed.
1055	}	1228	*/
1056		1229
1057	/* See if player moving off should effect something */	1230	/* See if object moving off should effect something */
1058	if (check_walk_off
1059	&& ((move_type & tmp->move_off)	1231	if ((move_type & tmp->move_off)
1060	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1232	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0)
1061	{
1062	move_apply (tmp, this, 0);	1233	move_apply (tmp, this, 0);
1063
1064	if (destroyed ())
1065	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1066	}	1234	}
1067		1235
1068	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1236	if (affects_los ())
1069
1070	if (tmp->above == tmp)
1071	tmp->above = 0;
1072
1073	last = tmp;
1074	}
1075
1076	/* last == NULL of there are no objects on this space */
1077	if (!last)
1078	map->at (x, y).flags_ = P_NEED_UPDATE;
1079	else
1080	update_object (last, UP_OBJ_REMOVE);
1081
1082	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1083	update_all_los (map, x, y);	1237	update_all_los (map, x, y);
1084	}	1238	}
1085	}	1239	}
1086		1240
1087	/*	1241	/*
…		…
1096	merge_ob (object *op, object *top)	1250	merge_ob (object *op, object *top)
1097	{	1251	{
1098	if (!op->nrof)	1252	if (!op->nrof)
1099	return 0;	1253	return 0;
1100		1254
1101	if (top == NULL)	1255	if (!top)
1102	for (top = op; top != NULL && top->above != NULL; top = top->above);	1256	for (top = op; top && top->above; top = top->above)
		1257	;
1103		1258
1104	for (; top != NULL; top = top->below)	1259	for (; top; top = top->below)
1105	{
1106	if (top == op)
1107	continue;
1108
1109	if (object::can_merge (op, top))	1260	if (object::can_merge (op, top))
1110	{	1261	{
1111	top->nrof += op->nrof;	1262	top->nrof += op->nrof;
1112		1263
1113	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1264	if (object *pl = top->visible_to ())
1114	op->weight = 0; /* Don't want any adjustements now */	1265	esrv_update_item (UPD_NROF, pl, top);
		1266
		1267	op->weight = 0; // cancel the addition above
		1268	op->carrying = 0; // must be 0 already
		1269
1115	op->destroy ();	1270	op->destroy ();
		1271
1116	return top;	1272	return top;
1117	}	1273	}
1118	}
1119		1274
1120	return 0;	1275	return 0;
1121	}	1276	}
1122		1277
		1278	void
		1279	object::expand_tail ()
		1280	{
		1281	if (more)
		1282	return;
		1283
		1284	object *prev = this;
		1285
		1286	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1287	{
		1288	object *op = at->instance ();
		1289
		1290	op->name = name;
		1291	op->name_pl = name_pl;
		1292	op->title = title;
		1293
		1294	op->head = this;
		1295	prev->more = op;
		1296
		1297	prev = op;
		1298	}
		1299	}
		1300
1123	/*	1301	/*
1124	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1302	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1125	* job preparing multi-part monsters	1303	* job preparing multi-part monsters.
1126	*/	1304	*/
1127	object *	1305	object *
1128	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1306	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1129	{	1307	{
1130	object *tmp;	1308	op->remove ();
1131		1309
1132	if (op->head)
1133	op = op->head;
1134
1135	for (tmp = op; tmp; tmp = tmp->more)	1310	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1136	{	1311	{
1137	tmp->x = x + tmp->arch->clone.x;	1312	tmp->x = x + tmp->arch->x;
1138	tmp->y = y + tmp->arch->clone.y;	1313	tmp->y = y + tmp->arch->y;
1139	}	1314	}
1140		1315
1141	return insert_ob_in_map (op, m, originator, flag);	1316	return insert_ob_in_map (op, m, originator, flag);
1142	}	1317	}
1143		1318
…		…
1156	* Passing 0 for flag gives proper default values, so flag really only needs	1331	* Passing 0 for flag gives proper default values, so flag really only needs
1157	* to be set if special handling is needed.	1332	* to be set if special handling is needed.
1158	*	1333	*
1159	* Return value:	1334	* Return value:
1160	* new object if 'op' was merged with other object	1335	* new object if 'op' was merged with other object
1161	* NULL if 'op' was destroyed	1336	* NULL if there was an error (destroyed, blocked etc.)
1162	* just 'op' otherwise	1337	* just 'op' otherwise
1163	*/	1338	*/
1164
1165	object *	1339	object *
1166	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1340	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1167	{	1341	{
1168	object *tmp, *top, *floor = NULL;	1342	op->remove ();
1169	sint16 x, y;
1170		1343
1171	if (QUERY_FLAG (op, FLAG_FREED))	1344	if (m == &freed_map)//D TODO: remove soon
1172	{	1345	{//D
1173	LOG (llevError, "Trying to insert freed object!\n");	1346	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
1174	return NULL;
1175	}	1347	}//D
1176
1177	if (m == NULL)
1178	{
1179	char *dump = dump_object (op);
1180	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1181	free (dump);
1182	return op;
1183	}
1184
1185	if (out_of_map (m, op->x, op->y))
1186	{
1187	char *dump = dump_object (op);
1188	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1189	#ifdef MANY_CORES
1190	/* Better to catch this here, as otherwise the next use of this object
1191	* is likely to cause a crash. Better to find out where it is getting
1192	* improperly inserted.
1193	*/
1194	abort ();
1195	#endif
1196	free (dump);
1197	return op;
1198	}
1199
1200	if (!QUERY_FLAG (op, FLAG_REMOVED))
1201	{
1202	char *dump = dump_object (op);
1203	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1204	free (dump);
1205	return op;
1206	}
1207
1208	if (op->more != NULL)
1209	{
1210	/* The part may be on a different map. */
1211
1212	object *more = op->more;
1213
1214	/* We really need the caller to normalize coordinates - if
1215	* we set the map, that doesn't work if the location is within
1216	* a map and this is straddling an edge. So only if coordinate
1217	* is clear wrong do we normalize it.
1218	*/
1219	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1220	more->map = get_map_from_coord (m, &more->x, &more->y);
1221	else if (!more->map)
1222	{
1223	/* For backwards compatibility - when not dealing with tiled maps,
1224	* more->map should always point to the parent.
1225	*/
1226	more->map = m;
1227	}
1228
1229	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1230	{
1231	if (!op->head)
1232	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1233
1234	return NULL;
1235	}
1236	}
1237
1238	CLEAR_FLAG (op, FLAG_REMOVED);
1239		1348
1240	/* Ideally, the caller figures this out. However, it complicates a lot	1349	/* Ideally, the caller figures this out. However, it complicates a lot
1241	* of areas of callers (eg, anything that uses find_free_spot would now	1350	* of areas of callers (eg, anything that uses find_free_spot would now
1242	* need extra work	1351	* need extra work
1243	*/	1352	*/
1244	op->map = get_map_from_coord (m, &op->x, &op->y);	1353	maptile *newmap = m;
1245	x = op->x;	1354	if (!xy_normalise (newmap, op->x, op->y))
1246	y = op->y;	1355	{
		1356	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
		1357	return 0;
		1358	}
		1359
		1360	if (object *more = op->more)
		1361	if (!insert_ob_in_map (more, m, originator, flag))
		1362	return 0;
		1363
		1364	op->flag [FLAG_REMOVED] = false;
		1365	op->env = 0;
		1366	op->map = newmap;
		1367
		1368	mapspace &ms = op->ms ();
1247		1369
1248	/* this has to be done after we translate the coordinates.	1370	/* this has to be done after we translate the coordinates.
1249	*/	1371	*/
1250	if (op->nrof && !(flag & INS_NO_MERGE))	1372	if (op->nrof && !(flag & INS_NO_MERGE))
1251	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1373	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1252	if (object::can_merge (op, tmp))	1374	if (object::can_merge (op, tmp))
1253	{	1375	{
		1376	// TODO: we actually want to update tmp, not op,
		1377	// but some caller surely breaks when we return tmp
		1378	// from here :/
1254	op->nrof += tmp->nrof;	1379	op->nrof += tmp->nrof;
1255	tmp->destroy ();	1380	tmp->destroy ();
1256	}	1381	}
1257		1382
1258	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1383	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
…		…
1267	{	1392	{
1268	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1393	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1269	abort ();	1394	abort ();
1270	}	1395	}
1271		1396
		1397	if (!originator->is_on_map ())
		1398	{
		1399	LOG (llevError, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1400	op->debug_desc (), originator->debug_desc ());
		1401	abort ();
		1402	}
		1403
1272	op->above = originator;	1404	op->above = originator;
1273	op->below = originator->below;	1405	op->below = originator->below;
1274
1275	if (op->below)
1276	op->below->above = op;
1277	else
1278	op->ms ().bottom = op;
1279
1280	/* since *below* originator, no need to update top */
1281	originator->below = op;	1406	originator->below = op;
		1407
		1408	*(op->below ? &op->below->above : &ms.bot) = op;
1282	}	1409	}
1283	else	1410	else
1284	{	1411	{
		1412	object *floor = 0;
		1413	object *top = ms.top;
		1414
1285	/* If there are other objects, then */	1415	/* If there are other objects, then */
1286	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1416	if (top)
1287	{	1417	{
1288	object *last = NULL;
1289
1290	/*	1418	/*
1291	* If there are multiple objects on this space, we do some trickier handling.	1419	* If there are multiple objects on this space, we do some trickier handling.
1292	* We've already dealt with merging if appropriate.	1420	* We've already dealt with merging if appropriate.
1293	* Generally, we want to put the new object on top. But if	1421	* Generally, we want to put the new object on top. But if
1294	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1422	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1297	* once we get to them. This reduces the need to traverse over all of	1425	* once we get to them. This reduces the need to traverse over all of
1298	* them when adding another one - this saves quite a bit of cpu time	1426	* them when adding another one - this saves quite a bit of cpu time
1299	* when lots of spells are cast in one area. Currently, it is presumed	1427	* when lots of spells are cast in one area. Currently, it is presumed
1300	* that flying non pickable objects are spell objects.	1428	* that flying non pickable objects are spell objects.
1301	*/	1429	*/
1302		1430	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1303	while (top != NULL)
1304	{	1431	{
1305	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1432	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
1306	floor = top;	1433	floor = tmp;
1307		1434
1308	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1435	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1309	{	1436	{
1310	/* We insert above top, so we want this object below this */	1437	/* We insert above top, so we want this object below this */
1311	top = top->below;	1438	top = tmp->below;
1312	break;	1439	break;
1313	}	1440	}
1314		1441
1315	last = top;
1316	top = top->above;	1442	top = tmp;
1317	}	1443	}
1318
1319	/* Don't want top to be NULL, so set it to the last valid object */
1320	top = last;
1321		1444
1322	/* We let update_position deal with figuring out what the space	1445	/* We let update_position deal with figuring out what the space
1323	* looks like instead of lots of conditions here.	1446	* looks like instead of lots of conditions here.
1324	* makes things faster, and effectively the same result.	1447	* makes things faster, and effectively the same result.
1325	*/	1448	*/
1326		1449
1327	/* Have object 'fall below' other objects that block view.	1450	/* Have object 'fall below' other objects that block view.
1328	* Unless those objects are exits, type 66	1451	* Unless those objects are exits.
1329	* If INS_ON_TOP is used, don't do this processing	1452	* If INS_ON_TOP is used, don't do this processing
1330	* Need to find the object that in fact blocks view, otherwise	1453	* Need to find the object that in fact blocks view, otherwise
1331	* stacking is a bit odd.	1454	* stacking is a bit odd.
1332	*/	1455	*/
1333	if (!(flag & INS_ON_TOP) &&	1456	if (!(flag & INS_ON_TOP)
1334	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1457	&& ms.flags () & P_BLOCKSVIEW
		1458	&& (op->face && !faces [op->face].visibility))
1335	{	1459	{
		1460	object *last;
		1461
1336	for (last = top; last != floor; last = last->below)	1462	for (last = top; last != floor; last = last->below)
1337	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1463	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1338	break;	1464	break;
		1465
1339	/* Check to see if we found the object that blocks view,	1466	/* Check to see if we found the object that blocks view,
1340	* and make sure we have a below pointer for it so that	1467	* and make sure we have a below pointer for it so that
1341	* we can get inserted below this one, which requires we	1468	* we can get inserted below this one, which requires we
1342	* set top to the object below us.	1469	* set top to the object below us.
1343	*/	1470	*/
1344	if (last && last->below && last != floor)	1471	if (last && last->below && last != floor)
1345	top = last->below;	1472	top = last->below;
1346	}	1473	}
1347	} /* If objects on this space */	1474	} /* If objects on this space */
1348		1475
1349	if (flag & INS_MAP_LOAD)
1350	top = GET_MAP_TOP (op->map, op->x, op->y);
1351
1352	if (flag & INS_ABOVE_FLOOR_ONLY)	1476	if (flag & INS_ABOVE_FLOOR_ONLY)
1353	top = floor;	1477	top = floor;
1354		1478
1355	/* Top is the object that our object (op) is going to get inserted above.	1479	// insert object above top, or bottom-most if top = 0
1356	*/
1357
1358	/* First object on this space */
1359	if (!top)	1480	if (!top)
1360	{	1481	{
1361	op->above = GET_MAP_OB (op->map, op->x, op->y);
1362
1363	if (op->above)
1364	op->above->below = op;
1365
1366	op->below = NULL;	1482	op->below = 0;
		1483	op->above = ms.bot;
1367	op->ms ().bottom = op;	1484	ms.bot = op;
		1485
		1486	*(op->above ? &op->above->below : &ms.top) = op;
1368	}	1487	}
1369	else	1488	else
1370	{ /* get inserted into the stack above top */	1489	{
1371	op->above = top->above;	1490	op->above = top->above;
1372
1373	if (op->above)
1374	op->above->below = op;	1491	top->above = op;
1375		1492
1376	op->below = top;	1493	op->below = top;
1377	top->above = op;	1494	*(op->above ? &op->above->below : &ms.top) = op;
1378	}	1495	}
		1496	}
1379		1497
1380	if (op->above == NULL)	1498	if (op->is_player ())
1381	op->ms ().top = op;	1499	{
1382	} /* else not INS_BELOW_ORIGINATOR */
1383
1384	if (op->type == PLAYER)
1385	op->contr->do_los = 1;	1500	op->contr->do_los = 1;
		1501	++op->map->players;
		1502	op->map->touch ();
		1503	}
1386		1504
1387	/* If we have a floor, we know the player, if any, will be above	1505	op->map->dirty = true;
1388	* it, so save a few ticks and start from there.	1506
1389	*/
1390	if (!(flag & INS_MAP_LOAD))
1391	if (object *pl = op->ms ().player ())	1507	if (object *pl = ms.player ())
		1508	//TODO: the floorbox prev/next might need updating
		1509	//esrv_send_item (pl, op);
		1510	//TODO: update floorbox to preserve ordering
		1511	if (pl->contr->ns)
1392	pl->contr->ns->floorbox_update ();	1512	pl->contr->ns->floorbox_update ();
1393		1513
1394	/* If this object glows, it may affect lighting conditions that are	1514	/* If this object glows, it may affect lighting conditions that are
1395	* visible to others on this map. But update_all_los is really	1515	* visible to others on this map. But update_all_los is really
1396	* an inefficient way to do this, as it means los for all players	1516	* an inefficient way to do this, as it means los for all players
1397	* on the map will get recalculated. The players could very well	1517	* on the map will get recalculated. The players could very well
1398	* be far away from this change and not affected in any way -	1518	* be far away from this change and not affected in any way -
1399	* this should get redone to only look for players within range,	1519	* this should get redone to only look for players within range,
1400	* or just updating the P_NEED_UPDATE for spaces within this area	1520	* or just updating the P_UPTODATE for spaces within this area
1401	* of effect may be sufficient.	1521	* of effect may be sufficient.
1402	*/	1522	*/
1403	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1523	if (op->affects_los ())
		1524	{
		1525	op->ms ().invalidate ();
1404	update_all_los (op->map, op->x, op->y);	1526	update_all_los (op->map, op->x, op->y);
		1527	}
1405		1528
1406	/* updates flags (blocked, alive, no magic, etc) for this map space */	1529	/* updates flags (blocked, alive, no magic, etc) for this map space */
1407	update_object (op, UP_OBJ_INSERT);	1530	update_object (op, UP_OBJ_INSERT);
		1531
		1532	INVOKE_OBJECT (INSERT, op);
1408		1533
1409	/* Don't know if moving this to the end will break anything. However,	1534	/* Don't know if moving this to the end will break anything. However,
1410	* we want to have floorbox_update called before calling this.	1535	* we want to have floorbox_update called before calling this.
1411	*	1536	*
1412	* check_move_on() must be after this because code called from	1537	* check_move_on() must be after this because code called from
…		…
1414	* blocked() and wall() work properly), and these flags are updated by	1539	* blocked() and wall() work properly), and these flags are updated by
1415	* update_object().	1540	* update_object().
1416	*/	1541	*/
1417		1542
1418	/* if this is not the head or flag has been passed, don't check walk on status */	1543	/* if this is not the head or flag has been passed, don't check walk on status */
1419	if (!(flag & INS_NO_WALK_ON) && !op->head)	1544	if (!(flag & INS_NO_WALK_ON) && op->is_head ())
1420	{	1545	{
1421	if (check_move_on (op, originator))	1546	if (check_move_on (op, originator))
1422	return NULL;	1547	return 0;
1423		1548
1424	/* If we are a multi part object, lets work our way through the check	1549	/* If we are a multi part object, lets work our way through the check
1425	* walk on's.	1550	* walk on's.
1426	*/	1551	*/
1427	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1552	for (object *tmp = op->more; tmp; tmp = tmp->more)
1428	if (check_move_on (tmp, originator))	1553	if (check_move_on (tmp, originator))
1429	return NULL;	1554	return 0;
1430	}	1555	}
1431		1556
1432	return op;	1557	return op;
1433	}	1558	}
1434		1559
1435	/* this function inserts an object in the map, but if it	1560	/* this function inserts an object in the map, but if it
1436	* finds an object of its own type, it'll remove that one first.	1561	* finds an object of its own type, it'll remove that one first.
1437	* op is the object to insert it under: supplies x and the map.	1562	* op is the object to insert it under: supplies x and the map.
1438	*/	1563	*/
1439	void	1564	void
1440	replace_insert_ob_in_map (const char *arch_string, object *op)	1565	replace_insert_ob_in_map (shstr_tmp archname, object *op)
1441	{	1566	{
1442	object *tmp, *tmp1;
1443
1444	/* first search for itself and remove any old instances */	1567	/* first search for itself and remove any old instances */
1445		1568
1446	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1569	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1447	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1570	if (tmp->arch->archname == archname) /* same archetype */
1448	tmp->destroy ();	1571	tmp->destroy ();
1449		1572
1450	tmp1 = arch_to_object (archetype::find (arch_string));	1573	object *tmp = archetype::find (archname)->instance ();
1451		1574
1452	tmp1->x = op->x;	1575	tmp->x = op->x;
1453	tmp1->y = op->y;	1576	tmp->y = op->y;
		1577
1454	insert_ob_in_map (tmp1, op->map, op, 0);	1578	insert_ob_in_map (tmp, op->map, op, 0);
1455	}	1579	}
1456
1457	/*
1458	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1459	* is returned contains nr objects, and the remaining parts contains
1460	* the rest (or is removed and freed if that number is 0).
1461	* On failure, NULL is returned, and the reason put into the
1462	* global static errmsg array.
1463	*/
1464		1580
1465	object *	1581	object *
1466	get_split_ob (object *orig_ob, uint32 nr)	1582	object::insert_at (object *where, object *originator, int flags)
1467	{	1583	{
1468	object *newob;	1584	if (where->env)
1469	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1585	return where->env->insert (this);
1470		1586	else
1471	if (orig_ob->nrof < nr)	1587	return where->map->insert (this, where->x, where->y, originator, flags);
1472	{
1473	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1474	return NULL;
1475	}
1476
1477	newob = object_create_clone (orig_ob);
1478
1479	if ((orig_ob->nrof -= nr) < 1)
1480	orig_ob->destroy (1);
1481	else if (!is_removed)
1482	{
1483	if (orig_ob->env != NULL)
1484	sub_weight (orig_ob->env, orig_ob->weight * nr);
1485	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1486	{
1487	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1488	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1489	return NULL;
1490	}
1491	}
1492
1493	newob->nrof = nr;
1494
1495	return newob;
1496	}	1588	}
1497		1589
		1590	// check whether we can put this into the map, respect max_volume, max_items
		1591	bool
		1592	object::can_drop_at (maptile *m, int x, int y, object *originator)
		1593	{
		1594	mapspace &ms = m->at (x, y);
		1595
		1596	int items = ms.items ();
		1597
		1598	if (!items // testing !items ensures we can drop at least one item
		1599	|| (items < m->max_items
		1600	&& ms.volume () < m->max_volume))
		1601	return true;
		1602
		1603	if (originator && originator->is_player ())
		1604	originator->contr->failmsg (format (
		1605	"No matter how hard you try, you just cannot put the %s here H<Try to remove some items from the floor first.>",
		1606	query_name ()
		1607	));
		1608
		1609	return false;
		1610	}
		1611
1498	/*	1612	/*
1499	* decrease_ob_nr(object, number) decreases a specified number from	1613	* decrease(object, number) decreases a specified number from
1500	* the amount of an object. If the amount reaches 0, the object	1614	* the amount of an object. If the amount reaches 0, the object
1501	* is subsequently removed and freed.	1615	* is subsequently removed and freed.
1502	*	1616	*
1503	* Return value: 'op' if something is left, NULL if the amount reached 0	1617	* Return value: 'op' if something is left, NULL if the amount reached 0
1504	*/	1618	*/
		1619	bool
		1620	object::decrease (sint32 nr)
		1621	{
		1622	if (!nr)
		1623	return true;
1505		1624
		1625	nr = min (nr, nrof);
		1626
		1627	if (nrof > nr)
		1628	{
		1629	nrof -= nr;
		1630	adjust_weight (env, -weight * max (1, nr)); // carrying == 0
		1631
		1632	if (object *pl = visible_to ())
		1633	esrv_update_item (UPD_NROF, pl, this);
		1634
		1635	return true;
		1636	}
		1637	else
		1638	{
		1639	destroy ();
		1640	return false;
		1641	}
		1642	}
		1643
		1644	/*
		1645	* split(ob,nr) splits up ob into two parts. The part which
		1646	* is returned contains nr objects, and the remaining parts contains
		1647	* the rest (or is removed and returned if that number is 0).
		1648	* On failure, NULL is returned.
		1649	*/
1506	object *	1650	object *
1507	decrease_ob_nr (object *op, uint32 i)	1651	object::split (sint32 nr)
1508	{	1652	{
1509	object *tmp;	1653	int have = number_of ();
1510		1654
1511	if (i == 0) /* objects with op->nrof require this check */	1655	if (have < nr)
1512	return op;	1656	return 0;
1513		1657	else if (have == nr)
1514	if (i > op->nrof)
1515	i = op->nrof;
1516
1517	if (QUERY_FLAG (op, FLAG_REMOVED))
1518	op->nrof -= i;
1519	else if (op->env)
1520	{	1658	{
1521	/* is this object in the players inventory, or sub container
1522	* therein?
1523	*/
1524	tmp = op->in_player ();
1525	/* nope. Is this a container the player has opened?
1526	* If so, set tmp to that player.
1527	* IMO, searching through all the players will mostly
1528	* likely be quicker than following op->env to the map,
1529	* and then searching the map for a player.
1530	*/
1531	if (!tmp)
1532	for_all_players (pl)
1533	if (pl->ob->container == op->env)
1534	{
1535	tmp = pl->ob;
1536	break;
1537	}
1538
1539	if (i < op->nrof)
1540	{
1541	sub_weight (op->env, op->weight * i);
1542	op->nrof -= i;
1543	if (tmp)
1544	esrv_send_item (tmp, op);
1545	}
1546	else
1547	{
1548	op->remove ();	1659	remove ();
1549	op->nrof = 0;	1660	return this;
1550	if (tmp)
1551	esrv_del_item (tmp->contr, op->count);
1552	}
1553	}	1661	}
1554	else	1662	else
1555	{	1663	{
1556	object *above = op->above;	1664	decrease (nr);
1557		1665
1558	if (i < op->nrof)	1666	object *op = deep_clone ();
1559	op->nrof -= i;	1667	op->nrof = nr;
1560	else
1561	{
1562	op->remove ();
1563	op->nrof = 0;
1564	}
1565
1566	/* Since we just removed op, op->above is null */
1567	for (tmp = above; tmp; tmp = tmp->above)
1568	if (tmp->type == PLAYER)
1569	{
1570	if (op->nrof)
1571	esrv_send_item (tmp, op);
1572	else
1573	esrv_del_item (tmp->contr, op->count);
1574	}
1575	}
1576
1577	if (op->nrof)
1578	return op;	1668	return op;
1579	else
1580	{
1581	op->destroy ();
1582	return 0;
1583	}
1584	}
1585
1586	/*
1587	* add_weight(object, weight) adds the specified weight to an object,
1588	* and also updates how much the environment(s) is/are carrying.
1589	*/
1590
1591	void
1592	add_weight (object *op, signed long weight)
1593	{
1594	while (op != NULL)
1595	{
1596	if (op->type == CONTAINER)
1597	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1598
1599	op->carrying += weight;
1600	op = op->env;
1601	}	1669	}
1602	}	1670	}
1603		1671
1604	object *	1672	object *
1605	insert_ob_in_ob (object *op, object *where)	1673	insert_ob_in_ob (object *op, object *where)
…		…
1610	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1678	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1611	free (dump);	1679	free (dump);
1612	return op;	1680	return op;
1613	}	1681	}
1614		1682
1615	if (where->head)	1683	if (where->head_ () != where)
1616	{	1684	{
1617	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");	1685	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1618	where = where->head;	1686	where = where->head;
1619	}	1687	}
1620		1688
1621	return where->insert (op);	1689	return where->insert (op);
1622	}	1690	}
…		…
1627	* inside the object environment.	1695	* inside the object environment.
1628	*	1696	*
1629	* The function returns now pointer to inserted item, and return value can	1697	* The function returns now pointer to inserted item, and return value can
1630	* be != op, if items are merged. -Tero	1698	* be != op, if items are merged. -Tero
1631	*/	1699	*/
1632
1633	object *	1700	object *
1634	object::insert (object *op)	1701	object::insert (object *op)
1635	{	1702	{
1636	object *tmp, *otmp;
1637
1638	if (!QUERY_FLAG (op, FLAG_REMOVED))
1639	op->remove ();
1640
1641	if (op->more)	1703	if (op->more)
1642	{	1704	{
1643	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1705	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1644	return op;	1706	return op;
1645	}	1707	}
1646		1708
1647	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1709	op->remove ();
1648	CLEAR_FLAG (op, FLAG_REMOVED);	1710
		1711	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1712
1649	if (op->nrof)	1713	if (op->nrof)
1650	{
1651	for (tmp = inv; tmp != NULL; tmp = tmp->below)	1714	for (object *tmp = inv; tmp; tmp = tmp->below)
1652	if (object::can_merge (tmp, op))	1715	if (object::can_merge (tmp, op))
1653	{	1716	{
1654	/* return the original object and remove inserted object	1717	/* return the original object and remove inserted object
1655	(client needs the original object) */	1718	(client needs the original object) */
1656	tmp->nrof += op->nrof;	1719	tmp->nrof += op->nrof;
1657	/* Weight handling gets pretty funky. Since we are adding to	1720
1658	* tmp->nrof, we need to increase the weight.	1721	if (object *pl = tmp->visible_to ())
1659	*/	1722	esrv_update_item (UPD_NROF, pl, tmp);
		1723
1660	add_weight (this, op->weight * op->nrof);	1724	adjust_weight (this, op->total_weight ());
1661	SET_FLAG (op, FLAG_REMOVED);	1725
1662	op->destroy (); /* free the inserted object */	1726	op->destroy ();
1663	op = tmp;	1727	op = tmp;
1664	op->remove (); /* and fix old object's links */	1728	goto inserted;
1665	CLEAR_FLAG (op, FLAG_REMOVED);
1666	break;
1667	}	1729	}
1668		1730
1669	/* I assume combined objects have no inventory	1731	op->owner = 0; // it's his/hers now. period.
1670	* We add the weight - this object could have just been removed
1671	* (if it was possible to merge). calling remove_ob will subtract
1672	* the weight, so we need to add it in again, since we actually do
1673	* the linking below
1674	*/
1675	add_weight (this, op->weight * op->nrof);
1676	}
1677	else
1678	add_weight (this, (op->weight + op->carrying));
1679
1680	otmp = this->in_player ();
1681	if (otmp && otmp->contr)
1682	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1683	otmp->update_stats ();
1684
1685	op->map = 0;	1732	op->map = 0;
1686	op->env = this;	1733	op->x = 0;
		1734	op->y = 0;
		1735
1687	op->above = 0;	1736	op->above = 0;
1688	op->below = 0;	1737	op->below = inv;
1689	op->x = 0, op->y = 0;	1738	op->env = this;
1690		1739
		1740	if (inv)
		1741	inv->above = op;
		1742
		1743	inv = op;
		1744
		1745	op->flag [FLAG_REMOVED] = 0;
		1746
		1747	if (object *pl = op->visible_to ())
		1748	esrv_send_item (pl, op);
		1749
		1750	adjust_weight (this, op->total_weight ());
		1751
		1752	inserted:
1691	/* reset the light list and los of the players on the map */	1753	/* reset the light list and los of the players on the map */
1692	if ((op->glow_radius != 0) && map)	1754	if (op->glow_radius && is_on_map ())
1693	{	1755	{
1694	#ifdef DEBUG_LIGHTS	1756	update_stats ();
1695	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1696	#endif /* DEBUG_LIGHTS */
1697	if (MAP_DARKNESS (map))
1698	update_all_los (map, x, y);	1757	update_all_los (map, x, y);
1699	}
1700
1701	/* Client has no idea of ordering so lets not bother ordering it here.
1702	* It sure simplifies this function...
1703	*/
1704	if (!inv)
1705	inv = op;
1706	else
1707	{	1758	}
1708	op->below = inv;	1759	else if (is_player ())
1709	op->below->above = op;	1760	// if this is a player's inventory, update stats
1710	inv = op;	1761	contr->queue_stats_update ();
1711	}	1762
		1763	INVOKE_OBJECT (INSERT, this);
1712		1764
1713	return op;	1765	return op;
1714	}	1766	}
1715		1767
1716	/*	1768	/*
…		…
1731	*	1783	*
1732	* MSW 2001-07-08: Check all objects on space, not just those below	1784	* MSW 2001-07-08: Check all objects on space, not just those below
1733	* object being inserted. insert_ob_in_map may not put new objects	1785	* object being inserted. insert_ob_in_map may not put new objects
1734	* on top.	1786	* on top.
1735	*/	1787	*/
1736
1737	int	1788	int
1738	check_move_on (object *op, object *originator)	1789	check_move_on (object *op, object *originator)
1739	{	1790	{
		1791	if (QUERY_FLAG (op, FLAG_NO_APPLY))
		1792	return 0;
		1793
1740	object *tmp;	1794	object *tmp;
1741	maptile *m = op->map;	1795	maptile *m = op->map;
1742	int x = op->x, y = op->y;	1796	int x = op->x, y = op->y;
1743		1797
1744	MoveType move_on, move_slow, move_block;	1798	mapspace &ms = m->at (x, y);
1745		1799
1746	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1800	ms.update ();
1747	return 0;
1748		1801
1749	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1802	MoveType move_on = ms.move_on;
1750	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1803	MoveType move_slow = ms.move_slow;
1751	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1804	MoveType move_block = ms.move_block;
1752		1805
1753	/* if nothing on this space will slow op down or be applied,	1806	/* if nothing on this space will slow op down or be applied,
1754	* no need to do checking below. have to make sure move_type	1807	* no need to do checking below. have to make sure move_type
1755	* is set, as lots of objects don't have it set - we treat that	1808	* is set, as lots of objects don't have it set - we treat that
1756	* as walking.	1809	* as walking.
…		…
1767	return 0;	1820	return 0;
1768		1821
1769	/* The objects have to be checked from top to bottom.	1822	/* The objects have to be checked from top to bottom.
1770	* Hence, we first go to the top:	1823	* Hence, we first go to the top:
1771	*/	1824	*/
1772		1825	for (object *next, *tmp = ms.top; tmp; tmp = next)
1773	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1774	{
1775	/* Trim the search when we find the first other spell effect
1776	* this helps performance so that if a space has 50 spell objects,
1777	* we don't need to check all of them.
1778	*/
1779	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
1780	break;
1781	}	1826	{
		1827	next = tmp->below;
1782		1828
1783	for (; tmp; tmp = tmp->below)
1784	{
1785	if (tmp == op)	1829	if (tmp == op)
1786	continue; /* Can't apply yourself */	1830	continue; /* Can't apply yourself */
1787		1831
1788	/* Check to see if one of the movement types should be slowed down.	1832	/* Check to see if one of the movement types should be slowed down.
1789	* Second check makes sure that the movement types not being slowed	1833	* Second check makes sure that the movement types not being slowed
…		…
1794	if (!QUERY_FLAG (op, FLAG_WIZPASS))	1838	if (!QUERY_FLAG (op, FLAG_WIZPASS))
1795	{	1839	{
1796	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1840	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1797	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1841	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1798	{	1842	{
1799
1800	float
1801	diff = tmp->move_slow_penalty * FABS (op->speed);	1843	float diff = tmp->move_slow_penalty * fabs (op->speed);
1802		1844
1803	if (op->type == PLAYER)	1845	if (op->is_player ())
1804	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1846	if ((tmp->flag [FLAG_IS_HILLY ] && find_skill_by_number (op, SK_CLIMBING)) ||
1805	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1847	(tmp->flag [FLAG_IS_WOODED] && find_skill_by_number (op, SK_WOODSMAN)))
1806	diff /= 4.0;	1848	diff /= 4.0;
1807		1849
1808	op->speed_left -= diff;	1850	op->speed_left -= diff;
1809	}	1851	}
1810	}	1852	}
…		…
1833	/*	1875	/*
1834	* present_arch(arch, map, x, y) searches for any objects with	1876	* present_arch(arch, map, x, y) searches for any objects with
1835	* a matching archetype at the given map and coordinates.	1877	* a matching archetype at the given map and coordinates.
1836	* The first matching object is returned, or NULL if none.	1878	* The first matching object is returned, or NULL if none.
1837	*/	1879	*/
1838
1839	object *	1880	object *
1840	present_arch (const archetype *at, maptile *m, int x, int y)	1881	present_arch (const archetype *at, maptile *m, int x, int y)
1841	{	1882	{
1842	object *
1843	tmp;
1844
1845	if (m == NULL || out_of_map (m, x, y))	1883	if (!m || out_of_map (m, x, y))
1846	{	1884	{
1847	LOG (llevError, "Present_arch called outside map.\n");	1885	LOG (llevError, "Present_arch called outside map.\n");
1848	return NULL;	1886	return NULL;
1849	}	1887	}
1850	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1888
1851	if (tmp->arch == at)	1889	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1890	if (tmp->arch->archname == at->archname)
1852	return tmp;	1891	return tmp;
		1892
1853	return NULL;	1893	return NULL;
1854	}	1894	}
1855		1895
1856	/*	1896	/*
1857	* present(type, map, x, y) searches for any objects with	1897	* present(type, map, x, y) searches for any objects with
1858	* a matching type variable at the given map and coordinates.	1898	* a matching type variable at the given map and coordinates.
1859	* The first matching object is returned, or NULL if none.	1899	* The first matching object is returned, or NULL if none.
1860	*/	1900	*/
1861
1862	object *	1901	object *
1863	present (unsigned char type, maptile *m, int x, int y)	1902	present (unsigned char type, maptile *m, int x, int y)
1864	{	1903	{
1865	object *
1866	tmp;
1867
1868	if (out_of_map (m, x, y))	1904	if (out_of_map (m, x, y))
1869	{	1905	{
1870	LOG (llevError, "Present called outside map.\n");	1906	LOG (llevError, "Present called outside map.\n");
1871	return NULL;	1907	return NULL;
1872	}	1908	}
1873	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1909
		1910	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1874	if (tmp->type == type)	1911	if (tmp->type == type)
1875	return tmp;	1912	return tmp;
		1913
1876	return NULL;	1914	return NULL;
1877	}	1915	}
1878		1916
1879	/*	1917	/*
1880	* present_in_ob(type, object) searches for any objects with	1918	* present_in_ob(type, object) searches for any objects with
1881	* a matching type variable in the inventory of the given object.	1919	* a matching type variable in the inventory of the given object.
1882	* The first matching object is returned, or NULL if none.	1920	* The first matching object is returned, or NULL if none.
1883	*/	1921	*/
1884
1885	object *	1922	object *
1886	present_in_ob (unsigned char type, const object *op)	1923	present_in_ob (unsigned char type, const object *op)
1887	{	1924	{
1888	object *
1889	tmp;
1890
1891	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1925	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1892	if (tmp->type == type)	1926	if (tmp->type == type)
1893	return tmp;	1927	return tmp;
		1928
1894	return NULL;	1929	return NULL;
1895	}	1930	}
1896		1931
1897	/*	1932	/*
1898	* present_in_ob (type, str, object) searches for any objects with	1933	* present_in_ob (type, str, object) searches for any objects with
…		…
1906	* str is the string to match against. Note that we match against	1941	* str is the string to match against. Note that we match against
1907	* the object name, not the archetype name. this is so that the	1942	* the object name, not the archetype name. this is so that the
1908	* spell code can use one object type (force), but change it's name	1943	* spell code can use one object type (force), but change it's name
1909	* to be unique.	1944	* to be unique.
1910	*/	1945	*/
1911
1912	object *	1946	object *
1913	present_in_ob_by_name (int type, const char *str, const object *op)	1947	present_in_ob_by_name (int type, const char *str, const object *op)
1914	{	1948	{
1915	object *
1916	tmp;
1917
1918	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1949	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1919	{
1920	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1950	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1921	return tmp;	1951	return tmp;
1922	}	1952
1923	return NULL;	1953	return 0;
1924	}	1954	}
1925		1955
1926	/*	1956	/*
1927	* present_arch_in_ob(archetype, object) searches for any objects with	1957	* present_arch_in_ob(archetype, object) searches for any objects with
1928	* a matching archetype in the inventory of the given object.	1958	* a matching archetype in the inventory of the given object.
1929	* The first matching object is returned, or NULL if none.	1959	* The first matching object is returned, or NULL if none.
1930	*/	1960	*/
1931
1932	object *	1961	object *
1933	present_arch_in_ob (const archetype *at, const object *op)	1962	present_arch_in_ob (const archetype *at, const object *op)
1934	{	1963	{
1935	object *
1936	tmp;
1937
1938	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1964	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1939	if (tmp->arch == at)	1965	if (tmp->arch->archname == at->archname)
1940	return tmp;	1966	return tmp;
		1967
1941	return NULL;	1968	return NULL;
1942	}	1969	}
1943		1970
1944	/*	1971	/*
1945	* activate recursively a flag on an object inventory	1972	* activate recursively a flag on an object inventory
1946	*/	1973	*/
1947	void	1974	void
1948	flag_inv (object *op, int flag)	1975	flag_inv (object *op, int flag)
1949	{	1976	{
1950	object *
1951	tmp;
1952
1953	if (op->inv)
1954	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1977	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1955	{	1978	{
1956	SET_FLAG (tmp, flag);	1979	SET_FLAG (tmp, flag);
1957	flag_inv (tmp, flag);	1980	flag_inv (tmp, flag);
1958	}	1981	}
1959	} /*	1982	}
		1983
		1984	/*
1960	* desactivate recursively a flag on an object inventory	1985	* deactivate recursively a flag on an object inventory
1961	*/	1986	*/
1962	void	1987	void
1963	unflag_inv (object *op, int flag)	1988	unflag_inv (object *op, int flag)
1964	{	1989	{
1965	object *
1966	tmp;
1967
1968	if (op->inv)
1969	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1990	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1970	{	1991	{
1971	CLEAR_FLAG (tmp, flag);	1992	CLEAR_FLAG (tmp, flag);
1972	unflag_inv (tmp, flag);	1993	unflag_inv (tmp, flag);
1973	}	1994	}
1974	}
1975
1976	/*
1977	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1978	* all it's inventory (recursively).
1979	* If checksums are used, a player will get set_cheat called for
1980	* him/her-self and all object carried by a call to this function.
1981	*/
1982
1983	void
1984	set_cheat (object *op)
1985	{
1986	SET_FLAG (op, FLAG_WAS_WIZ);
1987	flag_inv (op, FLAG_WAS_WIZ);
1988	}	1995	}
1989		1996
1990	/*	1997	/*
1991	* find_free_spot(object, map, x, y, start, stop) will search for	1998	* find_free_spot(object, map, x, y, start, stop) will search for
1992	* a spot at the given map and coordinates which will be able to contain	1999	* a spot at the given map and coordinates which will be able to contain
…		…
1994	* to search (see the freearr_x/y[] definition).	2001	* to search (see the freearr_x/y[] definition).
1995	* It returns a random choice among the alternatives found.	2002	* It returns a random choice among the alternatives found.
1996	* start and stop are where to start relative to the free_arr array (1,9	2003	* start and stop are where to start relative to the free_arr array (1,9
1997	* does all 4 immediate directions). This returns the index into the	2004	* does all 4 immediate directions). This returns the index into the
1998	* array of the free spot, -1 if no spot available (dir 0 = x,y)	2005	* array of the free spot, -1 if no spot available (dir 0 = x,y)
1999	* Note - this only checks to see if there is space for the head of the
2000	* object - if it is a multispace object, this should be called for all
2001	* pieces.
2002	* Note2: This function does correctly handle tiled maps, but does not	2006	* Note: This function does correctly handle tiled maps, but does not
2003	* inform the caller. However, insert_ob_in_map will update as	2007	* inform the caller. However, insert_ob_in_map will update as
2004	* necessary, so the caller shouldn't need to do any special work.	2008	* necessary, so the caller shouldn't need to do any special work.
2005	* Note - updated to take an object instead of archetype - this is necessary	2009	* Note - updated to take an object instead of archetype - this is necessary
2006	* because arch_blocked (now ob_blocked) needs to know the movement type	2010	* because arch_blocked (now ob_blocked) needs to know the movement type
2007	* to know if the space in question will block the object. We can't use	2011	* to know if the space in question will block the object. We can't use
2008	* the archetype because that isn't correct if the monster has been	2012	* the archetype because that isn't correct if the monster has been
2009	* customized, changed states, etc.	2013	* customized, changed states, etc.
2010	*/	2014	*/
2011
2012	int	2015	int
2013	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	2016	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2014	{	2017	{
2015	int
2016	i,
2017	index = 0, flag;
2018	static int
2019	altern[SIZEOFFREE];	2018	int altern[SIZEOFFREE];
		2019	int index = 0, flag;
2020		2020
2021	for (i = start; i < stop; i++)	2021	for (int i = start; i < stop; i++)
2022	{	2022	{
2023	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	2023	mapxy pos (m, x, y); pos.move (i);
2024	if (!flag)	2024
		2025	if (!pos.normalise ())
		2026	continue;
		2027
		2028	mapspace &ms = *pos;
		2029
		2030	if (ms.flags () & P_IS_ALIVE)
		2031	continue;
		2032
		2033	/* However, often
		2034	* ob doesn't have any move type (when used to place exits)
		2035	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		2036	*/
		2037	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		2038	{
2025	altern[index++] = i;	2039	altern [index++] = i;
		2040	continue;
		2041	}
2026		2042
2027	/* Basically, if we find a wall on a space, we cut down the search size.	2043	/* Basically, if we find a wall on a space, we cut down the search size.
2028	* In this way, we won't return spaces that are on another side of a wall.	2044	* In this way, we won't return spaces that are on another side of a wall.
2029	* This mostly work, but it cuts down the search size in all directions -	2045	* This mostly work, but it cuts down the search size in all directions -
2030	* if the space being examined only has a wall to the north and empty	2046	* if the space being examined only has a wall to the north and empty
2031	* spaces in all the other directions, this will reduce the search space	2047	* spaces in all the other directions, this will reduce the search space
2032	* to only the spaces immediately surrounding the target area, and	2048	* to only the spaces immediately surrounding the target area, and
2033	* won't look 2 spaces south of the target space.	2049	* won't look 2 spaces south of the target space.
2034	*/	2050	*/
2035	else if ((flag & P_NO_PASS) && maxfree[i] < stop)	2051	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		2052	{
2036	stop = maxfree[i];	2053	stop = maxfree[i];
		2054	continue;
		2055	}
		2056
		2057	/* Note it is intentional that we check ob - the movement type of the
		2058	* head of the object should correspond for the entire object.
		2059	*/
		2060	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		2061	continue;
		2062
		2063	if (ob->blocked (pos.m, pos.x, pos.y))
		2064	continue;
		2065
		2066	altern [index++] = i;
2037	}	2067	}
2038		2068
2039	if (!index)	2069	if (!index)
2040	return -1;	2070	return -1;
2041		2071
2042	return altern[RANDOM () % index];	2072	return altern [rndm (index)];
2043	}	2073	}
2044		2074
2045	/*	2075	/*
2046	* find_first_free_spot(archetype, maptile, x, y) works like	2076	* find_first_free_spot(archetype, maptile, x, y) works like
2047	* find_free_spot(), but it will search max number of squares.	2077	* find_free_spot(), but it will search max number of squares.
2048	* But it will return the first available spot, not a random choice.	2078	* But it will return the first available spot, not a random choice.
2049	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2079	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2050	*/	2080	*/
2051
2052	int	2081	int
2053	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2082	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2054	{	2083	{
2055	int
2056	i;
2057
2058	for (i = 0; i < SIZEOFFREE; i++)	2084	for (int i = 0; i < SIZEOFFREE; i++)
2059	{
2060	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2085	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2061	return i;	2086	return i;
2062	}	2087
2063	return -1;	2088	return -1;
2064	}	2089	}
2065		2090
2066	/*	2091	/*
2067	* The function permute(arr, begin, end) randomly reorders the array	2092	* The function permute(arr, begin, end) randomly reorders the array
2068	* arr[begin..end-1].	2093	* arr[begin..end-1].
		2094	* now uses a fisher-yates shuffle, old permute was broken
2069	*/	2095	*/
2070	static void	2096	static void
2071	permute (int *arr, int begin, int end)	2097	permute (int *arr, int begin, int end)
2072	{	2098	{
2073	int	2099	arr += begin;
2074	i,
2075	j,
2076	tmp,
2077	len;
2078
2079	len = end - begin;	2100	end -= begin;
2080	for (i = begin; i < end; i++)
2081	{
2082	j = begin + RANDOM () % len;
2083		2101
2084	tmp = arr[i];	2102	while (--end)
2085	arr[i] = arr[j];	2103	swap (arr [end], arr [rndm (end + 1)]);
2086	arr[j] = tmp;
2087	}
2088	}	2104	}
2089		2105
2090	/* new function to make monster searching more efficient, and effective!	2106	/* new function to make monster searching more efficient, and effective!
2091	* This basically returns a randomized array (in the passed pointer) of	2107	* This basically returns a randomized array (in the passed pointer) of
2092	* the spaces to find monsters. In this way, it won't always look for	2108	* the spaces to find monsters. In this way, it won't always look for
…		…
2095	* the 3x3 area will be searched, just not in a predictable order.	2111	* the 3x3 area will be searched, just not in a predictable order.
2096	*/	2112	*/
2097	void	2113	void
2098	get_search_arr (int *search_arr)	2114	get_search_arr (int *search_arr)
2099	{	2115	{
2100	int	2116	int i;
2101	i;
2102		2117
2103	for (i = 0; i < SIZEOFFREE; i++)	2118	for (i = 0; i < SIZEOFFREE; i++)
2104	{
2105	search_arr[i] = i;	2119	search_arr[i] = i;
2106	}
2107		2120
2108	permute (search_arr, 1, SIZEOFFREE1 + 1);	2121	permute (search_arr, 1, SIZEOFFREE1 + 1);
2109	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2122	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2110	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2123	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2111	}	2124	}
…		…
2120	* Perhaps incorrectly, but I'm making the assumption that exclude	2133	* Perhaps incorrectly, but I'm making the assumption that exclude
2121	* is actually want is going to try and move there. We need this info	2134	* is actually want is going to try and move there. We need this info
2122	* because we have to know what movement the thing looking to move	2135	* because we have to know what movement the thing looking to move
2123	* there is capable of.	2136	* there is capable of.
2124	*/	2137	*/
2125
2126	int	2138	int
2127	find_dir (maptile *m, int x, int y, object *exclude)	2139	find_dir (maptile *m, int x, int y, object *exclude)
2128	{	2140	{
2129	int
2130	i,
2131	max = SIZEOFFREE, mflags;	2141	int max = SIZEOFFREE, mflags;
2132
2133	sint16 nx, ny;
2134	object *
2135	tmp;
2136	maptile *
2137	mp;
2138
2139	MoveType blocked, move_type;	2142	MoveType move_type;
2140		2143
2141	if (exclude && exclude->head)	2144	if (exclude && exclude->head_ () != exclude)
2142	{	2145	{
2143	exclude = exclude->head;	2146	exclude = exclude->head;
2144	move_type = exclude->move_type;	2147	move_type = exclude->move_type;
2145	}	2148	}
2146	else	2149	else
2147	{	2150	{
2148	/* If we don't have anything, presume it can use all movement types. */	2151	/* If we don't have anything, presume it can use all movement types. */
2149	move_type = MOVE_ALL;	2152	move_type = MOVE_ALL;
2150	}	2153	}
2151		2154
2152	for (i = 1; i < max; i++)	2155	for (int i = 1; i < max; i++)
2153	{	2156	{
2154	mp = m;	2157	mapxy pos (m, x, y);
2155	nx = x + freearr_x[i];	2158	pos.move (i);
2156	ny = y + freearr_y[i];
2157		2159
2158	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2160	if (!pos.normalise ())
2159
2160	if (mflags & P_OUT_OF_MAP)
2161	max = maxfree[i];	2161	max = maxfree[i];
2162	else	2162	else
2163	{	2163	{
2164	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2164	mapspace &ms = *pos;
2165		2165
2166	if ((move_type & blocked) == move_type)	2166	if ((move_type & ms.move_block) == move_type)
2167	max = maxfree[i];	2167	max = maxfree [i];
2168	else if (mflags & P_IS_ALIVE)	2168	else if (ms.flags () & P_IS_ALIVE)
2169	{	2169	{
2170	for (tmp = GET_MAP_OB (mp, nx, ny); tmp; tmp = tmp->above)	2170	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
2171	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2171	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2172	break;	2172	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2173
2174	if (tmp)
2175	return freedir[i];	2173	return freedir [i];
2176	}	2174	}
2177	}	2175	}
2178	}	2176	}
2179		2177
2180	return 0;	2178	return 0;
…		…
2182		2180
2183	/*	2181	/*
2184	* distance(object 1, object 2) will return the square of the	2182	* distance(object 1, object 2) will return the square of the
2185	* distance between the two given objects.	2183	* distance between the two given objects.
2186	*/	2184	*/
2187
2188	int	2185	int
2189	distance (const object *ob1, const object *ob2)	2186	distance (const object *ob1, const object *ob2)
2190	{	2187	{
2191	int i;
2192
2193	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2188	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2194	return i;
2195	}	2189	}
2196		2190
2197	/*	2191	/*
2198	* find_dir_2(delta-x,delta-y) will return a direction in which	2192	* find_dir_2(delta-x,delta-y) will return a direction in which
2199	* an object which has subtracted the x and y coordinates of another	2193	* an object which has subtracted the x and y coordinates of another
2200	* object, needs to travel toward it.	2194	* object, needs to travel toward it.
2201	*/	2195	*/
2202
2203	int	2196	int
2204	find_dir_2 (int x, int y)	2197	find_dir_2 (int x, int y)
2205	{	2198	{
2206	int q;	2199	int q;
2207		2200
…		…
2236		2229
2237	return 3;	2230	return 3;
2238	}	2231	}
2239		2232
2240	/*	2233	/*
2241	* absdir(int): Returns a number between 1 and 8, which represent
2242	* the "absolute" direction of a number (it actually takes care of
2243	* "overflow" in previous calculations of a direction).
2244	*/
2245
2246	int
2247	absdir (int d)
2248	{
2249	while (d < 1)
2250	d += 8;
2251	while (d > 8)
2252	d -= 8;
2253	return d;
2254	}
2255
2256	/*
2257	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2234	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2258	* between two directions (which are expected to be absolute (see absdir())	2235	* between two directions (which are expected to be absolute (see absdir())
2259	*/	2236	*/
2260
2261	int	2237	int
2262	dirdiff (int dir1, int dir2)	2238	dirdiff (int dir1, int dir2)
2263	{	2239	{
2264	int	2240	int d;
2265	d;
2266		2241
2267	d = abs (dir1 - dir2);	2242	d = abs (dir1 - dir2);
2268	if (d > 4)	2243	if (d > 4)
2269	d = 8 - d;	2244	d = 8 - d;
		2245
2270	return d;	2246	return d;
2271	}	2247	}
2272		2248
2273	/* peterm:	2249	/* peterm:
2274	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2250	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2277	* This basically means that if direction is 15, then it could either go	2253	* This basically means that if direction is 15, then it could either go
2278	* direction 4, 14, or 16 to get back to where we are.	2254	* direction 4, 14, or 16 to get back to where we are.
2279	* Moved from spell_util.c to object.c with the other related direction	2255	* Moved from spell_util.c to object.c with the other related direction
2280	* functions.	2256	* functions.
2281	*/	2257	*/
2282
2283	int
2284	reduction_dir[SIZEOFFREE][3] = {	2258	static const int reduction_dir[SIZEOFFREE][3] = {
2285	{0, 0, 0}, /* 0 */	2259	{0, 0, 0}, /* 0 */
2286	{0, 0, 0}, /* 1 */	2260	{0, 0, 0}, /* 1 */
2287	{0, 0, 0}, /* 2 */	2261	{0, 0, 0}, /* 2 */
2288	{0, 0, 0}, /* 3 */	2262	{0, 0, 0}, /* 3 */
2289	{0, 0, 0}, /* 4 */	2263	{0, 0, 0}, /* 4 */
…		…
2380	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2354	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2381	* core dumps if they do.	2355	* core dumps if they do.
2382	*	2356	*
2383	* Add a check so we can't pick up invisible objects (0.93.8)	2357	* Add a check so we can't pick up invisible objects (0.93.8)
2384	*/	2358	*/
2385
2386	int	2359	int
2387	can_pick (const object *who, const object *item)	2360	can_pick (const object *who, const object *item)
2388	{	2361	{
2389	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2362	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2390	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2363	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2391	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2364	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2392	}	2365	}
2393		2366
2394	/*	2367	/*
2395	* create clone from object to another	2368	* create clone from object to another
2396	*/	2369	*/
2397	object *	2370	object *
2398	object_create_clone (object *asrc)	2371	object::deep_clone ()
2399	{	2372	{
2400	object *dst = 0, *tmp, *src, *part, *prev, *item;	2373	assert (("deep_clone called on non-head object", is_head ()));
2401		2374
2402	if (!asrc)	2375	object *dst = clone ();
2403	return 0;
2404		2376
2405	src = asrc;	2377	object *prev = dst;
2406	if (src->head)
2407	src = src->head;
2408
2409	prev = 0;
2410	for (part = src; part; part = part->more)	2378	for (object *part = this->more; part; part = part->more)
2411	{	2379	{
2412	tmp = part->clone ();	2380	object *tmp = part->clone ();
2413	tmp->x -= src->x;
2414	tmp->y -= src->y;
2415
2416	if (!part->head)
2417	{
2418	dst = tmp;
2419	tmp->head = 0;
2420	}
2421	else
2422	tmp->head = dst;	2381	tmp->head = dst;
2423
2424	tmp->more = 0;
2425
2426	if (prev)
2427	prev->more = tmp;	2382	prev->more = tmp;
2428
2429	prev = tmp;	2383	prev = tmp;
2430	}	2384	}
2431		2385
2432	for (item = src->inv; item; item = item->below)	2386	for (object *item = inv; item; item = item->below)
2433	insert_ob_in_ob (object_create_clone (item), dst);	2387	insert_ob_in_ob (item->deep_clone (), dst);
2434		2388
2435	return dst;	2389	return dst;
2436	}
2437
2438	/* GROS - Creates an object using a string representing its content. */
2439	/* Basically, we save the content of the string to a temp file, then call */
2440	/* load_object on it. I admit it is a highly inefficient way to make things, */
2441	/* but it was simple to make and allows reusing the load_object function. */
2442	/* Remember not to use load_object_str in a time-critical situation. */
2443	/* Also remember that multiparts objects are not supported for now. */
2444
2445	object *
2446	load_object_str (const char *obstr)
2447	{
2448	object *op;
2449	char filename[MAX_BUF];
2450
2451	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2452
2453	FILE *tempfile = fopen (filename, "w");
2454
2455	if (tempfile == NULL)
2456	{
2457	LOG (llevError, "Error - Unable to access load object temp file\n");
2458	return NULL;
2459	}
2460
2461	fprintf (tempfile, obstr);
2462	fclose (tempfile);
2463
2464	op = object::create ();
2465
2466	object_thawer thawer (filename);
2467
2468	if (thawer)
2469	load_object (thawer, op, 0);
2470
2471	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2472	CLEAR_FLAG (op, FLAG_REMOVED);
2473
2474	return op;
2475	}	2390	}
2476		2391
2477	/* This returns the first object in who's inventory that	2392	/* This returns the first object in who's inventory that
2478	* has the same type and subtype match.	2393	* has the same type and subtype match.
2479	* returns NULL if no match.	2394	* returns NULL if no match.
2480	*/	2395	*/
2481	object *	2396	object *
2482	find_obj_by_type_subtype (const object *who, int type, int subtype)	2397	find_obj_by_type_subtype (const object *who, int type, int subtype)
2483	{	2398	{
2484	object *tmp;
2485
2486	for (tmp = who->inv; tmp; tmp = tmp->below)	2399	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2487	if (tmp->type == type && tmp->subtype == subtype)	2400	if (tmp->type == type && tmp->subtype == subtype)
2488	return tmp;	2401	return tmp;
2489		2402
2490	return NULL;
2491	}
2492
2493	/* If ob has a field named key, return the link from the list,
2494	* otherwise return NULL.
2495	*
2496	* key must be a passed in shared string - otherwise, this won't
2497	* do the desired thing.
2498	*/
2499	key_value *
2500	get_ob_key_link (const object *ob, const char *key)
2501	{
2502	key_value *link;
2503
2504	for (link = ob->key_values; link != NULL; link = link->next)
2505	if (link->key == key)
2506	return link;
2507
2508	return NULL;
2509	}
2510
2511	/*
2512	* Returns the value of op has an extra_field for key, or NULL.
2513	*
2514	* The argument doesn't need to be a shared string.
2515	*
2516	* The returned string is shared.
2517	*/
2518	const char *
2519	get_ob_key_value (const object *op, const char *const key)
2520	{
2521	key_value *link;
2522	shstr_cmp canonical_key (key);
2523
2524	if (!canonical_key)
2525	{
2526	/* 1. There being a field named key on any object
2527	* implies there'd be a shared string to find.
2528	* 2. Since there isn't, no object has this field.
2529	* 3. Therefore, *this* object doesn't have this field.
2530	*/
2531	return 0;
2532	}
2533
2534	/* This is copied from get_ob_key_link() above -
2535	* only 4 lines, and saves the function call overhead.
2536	*/
2537	for (link = op->key_values; link; link = link->next)
2538	if (link->key == canonical_key)
2539	return link->value;
2540
2541	return 0;	2403	return 0;
2542	}	2404	}
2543		2405
2544		2406	shstr_tmp
2545	/*	2407	object::kv_get (shstr_tmp key) const
2546	* Updates the canonical_key in op to value.
2547	*
2548	* canonical_key is a shared string (value doesn't have to be).
2549	*
2550	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2551	* keys.
2552	*
2553	* Returns TRUE on success.
2554	*/
2555	int
2556	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2557	{	2408	{
2558	key_value *	2409	for (key_value *kv = key_values; kv; kv = kv->next)
2559	field = NULL, *last = NULL;	2410	if (kv->key == key)
		2411	return kv->value;
2560		2412
2561	for (field = op->key_values; field != NULL; field = field->next)	2413	return shstr ();
2562	{	2414	}
2563	if (field->key != canonical_key)	2415
		2416	void
		2417	object::kv_set (shstr_tmp key, shstr_tmp value)
		2418	{
		2419	for (key_value *kv = key_values; kv; kv = kv->next)
		2420	if (kv->key == key)
2564	{	2421	{
2565	last = field;	2422	kv->value = value;
2566	continue;	2423	return;
2567	}	2424	}
2568		2425
2569	if (value)	2426	key_value *kv = new key_value;
2570	field->value = value;	2427
2571	else	2428	kv->next = key_values;
		2429	kv->key = key;
		2430	kv->value = value;
		2431
		2432	key_values = kv;
		2433	}
		2434
		2435	void
		2436	object::kv_del (shstr_tmp key)
		2437	{
		2438	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2439	if ((*kvp)->key == key)
2572	{	2440	{
2573	/* Basically, if the archetype has this key set,	2441	key_value *kv = *kvp;
2574	* we need to store the null value so when we save	2442	*kvp = (*kvp)->next;
2575	* it, we save the empty value so that when we load,	2443	delete kv;
2576	* we get this value back again.	2444	return;
2577	*/
2578	if (get_ob_key_link (&op->arch->clone, canonical_key))
2579	field->value = 0;
2580	else
2581	{
2582	if (last)
2583	last->next = field->next;
2584	else
2585	op->key_values = field->next;
2586
2587	delete field;
2588	}
2589	}	2445	}
2590	return TRUE;
2591	}
2592	/* IF we get here, key doesn't exist */
2593
2594	/* No field, we'll have to add it. */
2595
2596	if (!add_key)
2597	{
2598	return FALSE;
2599	}
2600	/* There isn't any good reason to store a null
2601	* value in the key/value list. If the archetype has
2602	* this key, then we should also have it, so shouldn't
2603	* be here. If user wants to store empty strings,
2604	* should pass in ""
2605	*/
2606	if (value == NULL)
2607	return TRUE;
2608
2609	field = new key_value;
2610
2611	field->key = canonical_key;
2612	field->value = value;
2613	/* Usual prepend-addition. */
2614	field->next = op->key_values;
2615	op->key_values = field;
2616
2617	return TRUE;
2618	}
2619
2620	/*
2621	* Updates the key in op to value.
2622	*
2623	* If add_key is FALSE, this will only update existing keys,
2624	* and not add new ones.
2625	* In general, should be little reason FALSE is ever passed in for add_key
2626	*
2627	* Returns TRUE on success.
2628	*/
2629	int
2630	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2631	{
2632	shstr key_ (key);
2633
2634	return set_ob_key_value_s (op, key_, value, add_key);
2635	}	2446	}
2636		2447
2637	object::depth_iterator::depth_iterator (object *container)	2448	object::depth_iterator::depth_iterator (object *container)
2638	: iterator_base (container)	2449	: iterator_base (container)
2639	{	2450	{
…		…
2653	}	2464	}
2654	else	2465	else
2655	item = item->env;	2466	item = item->env;
2656	}	2467	}
2657		2468
		2469	const char *
		2470	object::flag_desc (char *desc, int len) const
		2471	{
		2472	char *p = desc;
		2473	bool first = true;
		2474
		2475	*p = 0;
		2476
		2477	for (int i = 0; i < NUM_FLAGS; i++)
		2478	{
		2479	if (len <= 10) // magic constant!
		2480	{
		2481	snprintf (p, len, ",...");
		2482	break;
		2483	}
		2484
		2485	if (flag [i])
		2486	{
		2487	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2488	len -= cnt;
		2489	p += cnt;
		2490	first = false;
		2491	}
		2492	}
		2493
		2494	return desc;
		2495	}
		2496
2658	// return a suitable string describing an objetc in enough detail to find it	2497	// return a suitable string describing an object in enough detail to find it
2659	const char *	2498	const char *
2660	object::debug_desc (char *info) const	2499	object::debug_desc (char *info) const
2661	{	2500	{
		2501	char flagdesc[512];
2662	char info2[256 * 3];	2502	char info2[256 * 4];
2663	char *p = info;	2503	char *p = info;
2664		2504
2665	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2505	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2666	count,	2506	count,
		2507	uuid.c_str (),
2667	&name,	2508	&name,
2668	title ? " " : "",	2509	title ? ",title:\"" : "",
2669	title ? (const char *)title : "");	2510	title ? (const char *)title : "",
		2511	title ? "\"" : "",
		2512	flag_desc (flagdesc, 512), type);
2670		2513
2671	if (env)	2514	if (!flag[FLAG_REMOVED] && env)
2672	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2515	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2673		2516
2674	if (map)	2517	if (map)
2675	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2518	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2676		2519
2677	return info;	2520	return info;
2678	}	2521	}
2679		2522
2680	const char *	2523	const char *
2681	object::debug_desc () const	2524	object::debug_desc () const
2682	{	2525	{
2683	static char info[256 * 3];	2526	static char info[3][256 * 4];
		2527	static int info_idx;
		2528
2684	return debug_desc (info);	2529	return debug_desc (info [++info_idx % 3]);
2685	}	2530	}
2686		2531
		2532	struct region *
		2533	object::region () const
		2534	{
		2535	return map ? map->region (x, y)
		2536	: region::default_region ();
		2537	}
		2538
		2539	void
		2540	object::open_container (object *new_container)
		2541	{
		2542	if (container == new_container)
		2543	return;
		2544
		2545	object *old_container = container;
		2546
		2547	if (old_container)
		2548	{
		2549	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2550	return;
		2551
		2552	#if 0
		2553	// remove the "Close old_container" object.
		2554	if (object *closer = old_container->inv)
		2555	if (closer->type == CLOSE_CON)
		2556	closer->destroy ();
		2557	#endif
		2558
		2559	// make sure the container is available
		2560	esrv_send_item (this, old_container);
		2561
		2562	old_container->flag [FLAG_APPLIED] = false;
		2563	container = 0;
		2564
		2565	// client needs item update to make it work, client bug requires this to be separate
		2566	esrv_update_item (UPD_FLAGS, this, old_container);
		2567
		2568	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", old_container->query_name ());
		2569	play_sound (sound_find ("chest_close"));
		2570	}
		2571
		2572	if (new_container)
		2573	{
		2574	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2575	return;
		2576
		2577	// TODO: this does not seem to serve any purpose anymore?
		2578	#if 0
		2579	// insert the "Close Container" object.
		2580	if (archetype *closer = new_container->other_arch)
		2581	{
		2582	object *closer = new_container->other_arch->instance ();
		2583	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2584	new_container->insert (closer);
		2585	}
		2586	#endif
		2587
		2588	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", new_container->query_name ());
		2589
		2590	// make sure the container is available, client bug requires this to be separate
		2591	esrv_send_item (this, new_container);
		2592
		2593	new_container->flag [FLAG_APPLIED] = true;
		2594	container = new_container;
		2595
		2596	// client needs flag change
		2597	esrv_update_item (UPD_FLAGS, this, new_container);
		2598	esrv_send_inventory (this, new_container);
		2599	play_sound (sound_find ("chest_open"));
		2600	}
		2601	// else if (!old_container->env && contr && contr->ns)
		2602	// contr->ns->floorbox_reset ();
		2603	}
		2604
		2605	object *
		2606	object::force_find (shstr_tmp name)
		2607	{
		2608	/* cycle through his inventory to look for the MARK we want to
		2609	* place
		2610	*/
		2611	for (object *tmp = inv; tmp; tmp = tmp->below)
		2612	if (tmp->type == FORCE && tmp->slaying == name)
		2613	return splay (tmp);
		2614
		2615	return 0;
		2616	}
		2617
		2618	//-GPL
		2619
		2620	void
		2621	object::force_set_timer (int duration)
		2622	{
		2623	this->duration = 1;
		2624	this->speed_left = -1.f;
		2625
		2626	this->set_speed (duration ? 1.f / duration : 0.f);
		2627	}
		2628
		2629	object *
		2630	object::force_add (shstr_tmp name, int duration)
		2631	{
		2632	if (object *force = force_find (name))
		2633	force->destroy ();
		2634
		2635	object *force = get_archetype (FORCE_NAME);
		2636
		2637	force->slaying = name;
		2638	force->force_set_timer (duration);
		2639	force->flag [FLAG_APPLIED] = true;
		2640
		2641	return insert (force);
		2642	}
		2643
		2644	void
		2645	object::play_sound (faceidx sound) const
		2646	{
		2647	if (!sound)
		2648	return;
		2649
		2650	if (is_on_map ())
		2651	map->play_sound (sound, x, y);
		2652	else if (object *pl = in_player ())
		2653	pl->contr->play_sound (sound);
		2654	}
		2655
		2656	void
		2657	object::say_msg (const char *msg) const
		2658	{
		2659	if (is_on_map ())
		2660	map->say_msg (msg, x, y);
		2661	else if (object *pl = in_player ())
		2662	pl->contr->play_sound (sound);
		2663	}
		2664
		2665	void
		2666	object::make_noise ()
		2667	{
		2668	// we do not model noise in the map, so instead put
		2669	// a temporary light into the noise source
		2670	// could use the map instead, but that's less reliable for our
		2671	// goal, which is to make invisibility a bit harder to exploit
		2672
		2673	// currently only works sensibly for players
		2674	if (!is_player ())
		2675	return;
		2676
		2677	// find old force, or create new one
		2678	object *force = force_find (shstr_noise_force);
		2679
		2680	if (force)
		2681	force->speed_left = -1.f; // patch old speed up
		2682	else
		2683	{
		2684	force = archetype::get (shstr_noise_force);
		2685
		2686	force->slaying = shstr_noise_force;
		2687	force->stats.food = 1;
		2688	force->speed_left = -1.f;
		2689
		2690	force->set_speed (1.f / 4.f);
		2691	force->flag [FLAG_IS_USED_UP] = true;
		2692	force->flag [FLAG_APPLIED] = true;
		2693
		2694	insert (force);
		2695	}
		2696	}
		2697
		2698	void object::change_move_type (MoveType mt)
		2699	{
		2700	if (move_type == mt)
		2701	return;
		2702
		2703	if (is_on_map ())
		2704	{
		2705	// we are on the map, so handle move_on/off effects
		2706	remove ();
		2707	move_type = mt;
		2708	map->insert (this, x, y, this);
		2709	}
		2710	else
		2711	move_type = mt;
		2712	}
		2713

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