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Comparing deliantra/server/common/object.C (file contents):
Revision 1.80 by root, Sat Dec 23 06:41:39 2006 UTC vs.
Revision 1.305 by root, Wed Nov 11 04:45:22 2009 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 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>	31	#include <loader.h>
34		32
35	#include <bitset>	33	#include <bitset>
36		34
37	int nrofallocobjects = 0;	35	UUID UUID::cur;
38	static UUID uuid;	36	static uint64_t seq_next_save;
39	const uint64 UUID_SKIP = 1<<19;	37	static const uint64 UUID_GAP = 1<<19;
		38	uint32_t mapspace::smellcount = 10000;
40		39
41	object *active_objects; /* List of active objects that need to be processed */	40	objectvec objects;
		41	activevec actives;
42		42
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,	43	//+GPL
		44
		45	short freearr_x[SIZEOFFREE] = {
		46	0,
		47	0, 1, 1, 1, 0, -1, -1, -1,
		48	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	49	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
45	};	50	};
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,	51	short freearr_y[SIZEOFFREE] = {
		52	0,
		53	-1, -1, 0, 1, 1, 1, 0, -1,
		54	-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	55	-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	};	56	};
52	int freedir[SIZEOFFREE] = {	57	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,	58	0,
		59	1, 2, 3, 4, 5, 6, 7, 8,
		60	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	61	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	};	62	};
56		63
		64	static int maxfree[SIZEOFFREE] = {
		65	0,
		66	9, 10, 13, 14, 17, 18, 21, 22,
		67	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
		68	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		69	};
		70
57	static void	71	static void
58	write_uuid (void)	72	write_uuid (uval64 skip, bool sync)
59	{	73	{
60	char filename1[MAX_BUF], filename2[MAX_BUF];	74	CALL_BEGIN (2);
61		75	CALL_ARG_SV (newSVval64 (skip));
62	sprintf (filename1, "%s/uuid", settings.localdir);	76	CALL_ARG_SV (boolSV (sync));
63	sprintf (filename2, "%s/uuid~", settings.localdir);	77	CALL_CALL ("cf::write_uuid", G_DISCARD);
64		78	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	}	79	}
77		80
78	static void	81	static void
79	read_uuid (void)	82	read_uuid (void)
80	{	83	{
81	char filename[MAX_BUF];	84	char filename[MAX_BUF];
82		85
83	sprintf (filename, "%s/uuid", settings.localdir);	86	sprintf (filename, "%s/uuid", settings.localdir);
		87
		88	seq_next_save = 0;
84		89
85	FILE *fp;	90	FILE *fp;
86		91
87	if (!(fp = fopen (filename, "r")))	92	if (!(fp = fopen (filename, "r")))
88	{	93	{
89	if (errno == ENOENT)	94	if (errno == ENOENT)
90	{	95	{
91	LOG (llevInfo, "RESET uid to 1\n");	96	LOG (llevInfo, "RESET uid to 1\n");
92	uuid.seq = 0;	97	UUID::cur.seq = 0;
93	write_uuid ();	98	write_uuid (UUID_GAP, true);
94	return;	99	return;
95	}	100	}
96		101
97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	102	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
98	_exit (1);	103	_exit (1);
99	}	104	}
100		105
101	int version;	106	char buf [UUID::MAX_LEN];
102	unsigned long long uid;	107	buf[0] = 0;
103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	108	fgets (buf, sizeof (buf), fp);
		109
		110	if (!UUID::cur.parse (buf))
104	{	111	{
105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	112	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
106	_exit (1);	113	_exit (1);
107	}	114	}
108		115
109	uuid.seq = uid;	116	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
110	write_uuid ();	117
111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);	118	write_uuid (UUID_GAP, true);
112	fclose (fp);	119	fclose (fp);
113	}	120	}
114		121
115	UUID	122	UUID
116	gen_uuid ()	123	UUID::gen ()
117	{	124	{
118	UUID uid;	125	UUID uid;
119		126
120	uid.seq = ++uuid.seq;	127	uid.seq = ++cur.seq;
121		128
122	if (!(uuid.seq & (UUID_SKIP - 1)))	129	if (expect_false (cur.seq >= seq_next_save))
123	write_uuid ();	130	{
		131	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		132	write_uuid (UUID_GAP, false);
		133	}
		134
124		135
125	return uid;	136	return uid;
126	}	137	}
127		138
128	void	139	void
129	init_uuid ()	140	UUID::init ()
130	{	141	{
131	read_uuid ();	142	read_uuid ();
132	}	143	}
133		144
		145	bool
		146	UUID::parse (const char *s)
		147	{
		148	if (*s++ != '<' || *s++ != '1' || *s++ != '.')
		149	return false;
		150
		151	seq = 0;
		152
		153	while (*s != '>')
		154	{
		155	if (*s < '0')
		156	return false;
		157
		158	// this gives nice branchless code with gcc
		159	assert ('0' < 'a' && '0' == 48 && 'a' == 97);
		160	int digit = (*s + (*s & 0x40 ? 9 : 0)) & 15;
		161
		162	seq = (seq << 4) | digit;
		163
		164	++s;
		165	}
		166
		167	return true;
		168	}
		169
		170	char *
		171	UUID::append (char *buf) const
		172	{
		173	*buf++ = '<';
		174	*buf++ = '1';
		175	*buf++ = '.';
		176
		177	uint64_t seq = this->seq;
		178	const int bits = 64;
		179	char nz = 0;
		180	static const char tohex [] = "0123456789abcdef";
		181
		182	// assert (len >= 3 + bits / 4 + 1 + 1);
		183	for (int i = bits / 4; --i; )
		184	{
		185	uint8_t digit = seq >> (bits - 4);
		186
		187	*buf = tohex [digit];
		188	nz |= digit;
		189	buf += nz ? 1 : 0;
		190	seq <<= 4;
		191	}
		192
		193	// last digit is special - always emit
		194	uint8_t digit = seq >> (bits - 4);
		195	*buf++ = tohex [digit];
		196
		197	*buf++ = '>';
		198
		199	return buf;
		200	}
		201
		202	char *
		203	UUID::c_str () const
		204	{
		205	static char buf [MAX_LEN];
		206	*append (buf) = 0;
		207	return buf;
		208	}
		209
134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	210	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
135	static int	211	static bool
136	compare_ob_value_lists_one (const object *wants, const object *has)	212	compare_ob_value_lists_one (const object *wants, const object *has)
137	{	213	{
138	key_value *wants_field;
139
140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	214	/* 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	215	* objects with lists are rare, and lists stay short. If not, use a
142	* different structure or at least keep the lists sorted...	216	* different structure or at least keep the lists sorted...
143	*/	217	*/
144		218
145	/* For each field in wants, */	219	/* For each field in wants, */
146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	220	for (key_value *kv = wants->key_values; kv; kv = kv->next)
147	{	221	if (has->kv_get (kv->key) != kv->value)
148	key_value *has_field;	222	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		223
169	/* If we get here, every field in wants has a matching field in has. */	224	/* If we get here, every field in wants has a matching field in has. */
170	return TRUE;	225	return true;
171	}	226	}
172		227
173	/* Returns TRUE if ob1 has the same key_values as ob2. */	228	/* Returns TRUE if ob1 has the same key_values as ob2. */
174	static int	229	static bool
175	compare_ob_value_lists (const object *ob1, const object *ob2)	230	compare_ob_value_lists (const object *ob1, const object *ob2)
176	{	231	{
177	/* However, there may be fields in has which aren't partnered in wants,	232	/* However, there may be fields in has which aren't partnered in wants,
178	* so we need to run the comparison *twice*. :(	233	* so we need to run the comparison *twice*. :(
179	*/	234	*/
180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);	235	return compare_ob_value_lists_one (ob1, ob2)
		236	&& compare_ob_value_lists_one (ob2, ob1);
181	}	237	}
182		238
183	/* Function examines the 2 objects given to it, and returns true if	239	/* Function examines the 2 objects given to it, and returns true if
184	* they can be merged together.	240	* they can be merged together.
185	*	241	*
…		…
190	* Check nrof variable *before* calling can_merge()	246	* Check nrof variable *before* calling can_merge()
191	*	247	*
192	* Improvements made with merge: Better checking on potion, and also	248	* Improvements made with merge: Better checking on potion, and also
193	* check weight	249	* check weight
194	*/	250	*/
195
196	bool object::can_merge_slow (object *ob1, object *ob2)	251	bool object::can_merge_slow (object *ob1, object *ob2)
197	{	252	{
198	/* A couple quicksanity checks */	253	/* A couple quicksanity checks */
199	if (ob1 == ob2	254	if (ob1 == ob2
200	|| ob1->type != ob2->type	255	|| ob1->type != ob2->type
201	|| ob1->speed != ob2->speed	256	|| fabs (ob1->speed - ob2->speed) >= MIN_ACTIVE_SPEED
202	|| ob1->value != ob2->value	257	|| ob1->value != ob2->value
203	|| ob1->name != ob2->name)	258	|| ob1->name != ob2->name)
204	return 0;	259	return 0;
205		260
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	261	/* Do not merge objects if nrof would overflow, assume nrof
208	* value could not be stored in a sint32 (which unfortunately sometimes is	262	* is always 0 .. 2**31-1 */
209	* used to store nrof).	263	if (ob1->nrof > 0x7fffffff - ob2->nrof)
210	*/
211	if (ob1->nrof + ob2->nrof >= 1UL << 31)
212	return 0;	264	return 0;
213		265
214	/* If the objects have been identified, set the BEEN_APPLIED flag.	266	/* 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	267	* 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	268	* 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	269	* are not equal - just if it has been identified, the been_applied
218	* flags lose any meaning.	270	* flags lose any meaning.
219	*/	271	*/
220	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	272	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	273	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
222		274
223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	275	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	276	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
225		277
226	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()	278	if (ob1->arch->archname != ob2->arch->archname
227	|| ob1->arch != ob2->arch
228	|| ob1->name != ob2->name	279	|| ob1->name != ob2->name
229	|| ob1->title != ob2->title	280	|| ob1->title != ob2->title
230	|| ob1->msg != ob2->msg	281	|| ob1->msg != ob2->msg
231	|| ob1->weight != ob2->weight	282	|| 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	283	|| ob1->attacktype != ob2->attacktype
235	|| ob1->magic != ob2->magic	284	|| ob1->magic != ob2->magic
236	|| ob1->slaying != ob2->slaying	285	|| ob1->slaying != ob2->slaying
237	|| ob1->skill != ob2->skill	286	|| ob1->skill != ob2->skill
238	|| ob1->value != ob2->value	287	|| ob1->value != ob2->value
239	|| ob1->animation_id != ob2->animation_id	288	|| ob1->animation_id != ob2->animation_id
		289	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependent on each other
240	|| ob1->client_type != ob2->client_type	290	|| ob1->client_type != ob2->client_type
241	|| ob1->materialname != ob2->materialname	291	|| ob1->material != ob2->material
242	|| ob1->lore != ob2->lore	292	|| ob1->lore != ob2->lore
243	|| ob1->subtype != ob2->subtype	293	|| ob1->subtype != ob2->subtype
244	|| ob1->move_type != ob2->move_type	294	|| ob1->move_type != ob2->move_type
245	|| ob1->move_block != ob2->move_block	295	|| ob1->move_block != ob2->move_block
246	|| ob1->move_allow != ob2->move_allow	296	|| ob1->move_allow != ob2->move_allow
247	|| ob1->move_on != ob2->move_on	297	|| ob1->move_on != ob2->move_on
248	|| ob1->move_off != ob2->move_off	298	|| ob1->move_off != ob2->move_off
249	|| ob1->move_slow != ob2->move_slow	299	|| ob1->move_slow != ob2->move_slow
250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)	300	|| fabs (ob1->move_slow_penalty - ob2->move_slow_penalty) >= (1.f / 1024.f)
		301	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		302	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
251	return 0;	303	return 0;
252		304
		305	if ((ob1->flag ^ ob2->flag)
		306	.reset (FLAG_INV_LOCKED)
		307	.reset (FLAG_REMOVED)
		308	.any ())
		309	return 0;
		310
253	/* This is really a spellbook check - really, we should	311	/* This is really a spellbook check - we should in general
254	* check all objects in the inventory.	312	* not merge objects with real inventories, as splitting them
		313	* is hard.
255	*/	314	*/
256	if (ob1->inv || ob2->inv)	315	if (ob1->inv || ob2->inv)
257	{	316	{
258	/* if one object has inventory but the other doesn't, not equiv */	317	if (!(ob1->inv && ob2->inv))
259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	318	return 0; /* inventories differ in length */
260	return 0;
261		319
262	/* Now check to see if the two inventory objects could merge */	320	if (ob1->inv->below || ob2->inv->below)
		321	return 0; /* more than one object in inv */
		322
263	if (!object::can_merge (ob1->inv, ob2->inv))	323	if (!object::can_merge (ob1->inv, ob2->inv))
264	return 0;	324	return 0; /* inventory objects differ */
265		325
266	/* inventory ok - still need to check rest of this object to see	326	/* inventory ok - still need to check rest of this object to see
267	* if it is valid.	327	* if it is valid.
268	*/	328	*/
269	}	329	}
…		…
277		337
278	/* Note sure why the following is the case - either the object has to	338	/* 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	339	* be animated or have a very low speed. Is this an attempted monster
280	* check?	340	* check?
281	*/	341	*/
282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	342	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
283	return 0;	343	return 0;
284		344
285	switch (ob1->type)	345	switch (ob1->type)
286	{	346	{
287	case SCROLL:	347	case SCROLL:
288	if (ob1->level != ob2->level)	348	if (ob1->level != ob2->level)
289	return 0;	349	return 0;
290	break;	350	break;
291	}	351	}
292		352
293	if (ob1->key_values != NULL || ob2->key_values != NULL)	353	if (ob1->key_values || ob2->key_values)
294	{	354	{
295	/* At least one of these has key_values. */	355	/* At least one of these has key_values. */
296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	356	if ((!ob1->key_values) != (!ob2->key_values))
297	/* One has fields, but the other one doesn't. */	357	return 0; /* One has fields, but the other one doesn't. */
		358
		359	if (!compare_ob_value_lists (ob1, ob2))
298	return 0;	360	return 0;
299	else if (!compare_ob_value_lists (ob1, ob2))
300	return 0;
301	}	361	}
302		362
303	//TODO: generate an event or call into perl for additional checks
304	if (ob1->self || ob2->self)	363	if (ob1->self || ob2->self)
305	{	364	{
306	ob1->optimise ();	365	ob1->optimise ();
307	ob2->optimise ();	366	ob2->optimise ();
308		367
309	if (ob1->self || ob2->self)	368	if (ob1->self || ob2->self)
		369	{
		370	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		371	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		372
		373	if (k1 != k2)
310	return 0;	374	return 0;
		375
		376	if (k1 == 0)
		377	return 1;
		378
		379	if (!cfperl_can_merge (ob1, ob2))
		380	return 0;
		381	}
311	}	382	}
312		383
313	/* Everything passes, must be OK. */	384	/* Everything passes, must be OK. */
314	return 1;	385	return 1;
315	}	386	}
316		387
		388	// find player who can see this object
		389	object *
		390	object::visible_to () const
		391	{
		392	if (client_visible () && !flag [FLAG_REMOVED])
		393	{
		394	// see if we are in a container of sorts
		395	if (env)
		396	{
		397	// the player inventory itself is always visible
		398	if (env->is_player ())
		399	return env;
		400
		401	// else a player could have our env open
		402	object *envest = env->outer_env_or_self ();
		403
		404	// the player itself is always on a map, so we will find him here
		405	// even if our inv is in a player.
		406	if (envest->is_on_map ())
		407	if (object *pl = envest->ms ().player ())
		408	if (pl->container_ () == env)
		409	return pl;
		410	}
		411	else
		412	{
		413	// maybe there is a player standing on the same mapspace
		414	// this will catch the case where "this" is a player
		415	if (object *pl = ms ().player ())
		416	if ((pl->contr->ns && !pl->container_ () && !pl->contr->ns->update_look)
		417	|| pl->container_ () == this)
		418	return pl;
		419	}
		420	}
		421
		422	return 0;
		423	}
		424
		425	// adjust weight per container type ("of holding")
		426	static sint32
		427	weight_adjust_for (object *op, sint32 weight)
		428	{
		429	return op->type == CONTAINER
		430	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		431	: weight;
		432	}
		433
317	/*	434	/*
		435	* adjust_weight(object, weight) adds the specified weight to an object,
		436	* and also updates how much the environment(s) is/are carrying.
		437	*/
		438	static void
		439	adjust_weight (object *op, sint32 weight)
		440	{
		441	while (op)
		442	{
		443	// adjust by actual difference to account for rounding errors
		444	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		445	weight = weight_adjust_for (op, op->carrying)
		446	- weight_adjust_for (op, op->carrying - weight);
		447
		448	if (!weight)
		449	return;
		450
		451	op->carrying += weight;
		452
		453	if (object *pl = op->visible_to ())
		454	if (pl != op) // player is handled lazily
		455	esrv_update_item (UPD_WEIGHT, pl, op);
		456
		457	op = op->env;
		458	}
		459	}
		460
		461	/*
318	* sum_weight() is a recursive function which calculates the weight	462	* this is a recursive function which calculates the weight
319	* an object is carrying. It goes through in figures out how much	463	* an object is carrying. It goes through op and figures out how much
320	* containers are carrying, and sums it up.	464	* containers are carrying, and sums it up.
321	*/	465	*/
322	long	466	void
323	sum_weight (object *op)	467	object::update_weight ()
324	{	468	{
325	long sum;	469	sint32 sum = 0;
326	object *inv;
327		470
328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	471	for (object *op = inv; op; op = op->below)
329	{	472	{
330	if (inv->inv)	473	if (op->inv)
331	sum_weight (inv);	474	op->update_weight ();
332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	475
		476	sum += op->total_weight ();
		477	}
		478
		479	sum = weight_adjust_for (this, sum);
		480
		481	if (sum != carrying)
333	}	482	{
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;	483	carrying = sum;
340		484
341	return sum;	485	if (object *pl = visible_to ())
		486	if (pl != this) // player is handled lazily
		487	esrv_update_item (UPD_WEIGHT, pl, this);
		488	}
342	}	489	}
343		490
344	/**	491	/*
345	* Return the outermost environment object for a given object.	492	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
346	*/	493	*/
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 *	494	char *
363	dump_object (object *op)	495	dump_object (object *op)
364	{	496	{
365	if (!op)	497	if (!op)
366	return strdup ("[NULLOBJ]");	498	return strdup ("[NULLOBJ]");
367		499
368	object_freezer freezer;	500	object_freezer freezer;
369	save_object (freezer, op, 3);	501	op->write (freezer);
370	return freezer.as_string ();	502	return freezer.as_string ();
371	}	503	}
372		504
373	/*	505	char *
374	* get_nearest_part(multi-object, object 2) returns the part of the	506	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	{	507	{
382	object *tmp, *closest;	508	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	}	509	}
392		510
393	/*	511	/*
394	* Returns the object which has the count-variable equal to the argument.	512	* Returns the object which has the count-variable equal to the argument.
		513	* VERRRY slow.
395	*/	514	*/
396
397	object *	515	object *
398	find_object (tag_t i)	516	find_object (tag_t i)
399	{	517	{
400	for (object *op = object::first; op; op = op->next)	518	for_all_objects (op)
401	if (op->count == i)	519	if (op->count == i)
402	return op;	520	return op;
403		521
404	return 0;	522	return 0;
405	}	523	}
406		524
407	/*	525	/*
408	* Returns the first object which has a name equal to the argument.	526	* Returns the first object which has a name equal to the argument.
409	* Used only by the patch command, but not all that useful.	527	* Used only by the patch command, but not all that useful.
410	* Enables features like "patch <name-of-other-player> food 999"	528	* Enables features like "patch <name-of-other-player> food 999"
411	*/	529	*/
412
413	object *	530	object *
414	find_object_name (const char *str)	531	find_object_name (const char *str)
415	{	532	{
416	shstr_cmp str_ (str);	533	shstr_cmp str_ (str);
417	object *op;
418		534
419	for (op = object::first; op != NULL; op = op->next)	535	if (str_)
		536	for_all_objects (op)
420	if (op->name == str_)	537	if (op->name == str_)
421	break;	538	return op;
422		539
423	return op;	540	return 0;
424	}
425
426	void
427	free_all_object_data ()
428	{
429	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
430	}	541	}
431		542
432	/*	543	/*
433	* Sets the owner and sets the skill and exp pointers to owner's current	544	* Sets the owner and sets the skill and exp pointers to owner's current
434	* skill and experience objects.	545	* skill and experience objects.
		546	* ACTUALLY NO! investigate! TODO
435	*/	547	*/
436	void	548	void
437	object::set_owner (object *owner)	549	object::set_owner (object *owner)
438	{	550	{
		551	// allow objects which own objects
439	if (!owner)	552	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)	553	while (owner->owner)
450	owner = owner->owner;	554	owner = owner->owner;
		555
		556	if (flag [FLAG_FREED])
		557	{
		558	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		559	return;
		560	}
451		561
452	this->owner = owner;	562	this->owner = owner;
		563	}
		564
		565	int
		566	object::slottype () const
		567	{
		568	if (type == SKILL)
		569	{
		570	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		571	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		572	}
		573	else
		574	{
		575	if (slot [body_combat].info) return slot_combat;
		576	if (slot [body_range ].info) return slot_ranged;
		577	}
		578
		579	return slot_none;
		580	}
		581
		582	bool
		583	object::change_weapon (object *ob)
		584	{
		585	if (current_weapon == ob)
		586	return true;
		587
		588	if (chosen_skill)
		589	chosen_skill->flag [FLAG_APPLIED] = false;
		590
		591	current_weapon = ob;
		592	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		593
		594	if (chosen_skill)
		595	chosen_skill->flag [FLAG_APPLIED] = true;
		596
		597	update_stats ();
		598
		599	if (ob)
		600	{
		601	// now check wether any body locations became invalid, in which case
		602	// we cannot apply the weapon at the moment.
		603	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		604	if (slot[i].used < 0)
		605	{
		606	current_weapon = chosen_skill = 0;
		607	update_stats ();
		608
		609	new_draw_info_format (NDI_UNIQUE, 0, this,
		610	"You try to balance all your items at once, "
		611	"but the %s is just too much for your body. "
		612	"[You need to unapply some items first - use the 'body' command to see "
		613	"how many items you cna wera on a specific body part.]", &ob->name);
		614	return false;
		615	}
		616
		617	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		618	}
		619	else
		620	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		621
		622	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		623	{
		624	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		625	&name, ob->debug_desc ());
		626	return false;
		627	}
		628
		629	return true;
453	}	630	}
454		631
455	/* Zero the key_values on op, decrementing the shared-string	632	/* Zero the key_values on op, decrementing the shared-string
456	* refcounts and freeing the links.	633	* refcounts and freeing the links.
457	*/	634	*/
458	static void	635	static void
459	free_key_values (object *op)	636	free_key_values (object *op)
460	{	637	{
461	for (key_value *i = op->key_values; i != 0;)	638	for (key_value *i = op->key_values; i; )
462	{	639	{
463	key_value *next = i->next;	640	key_value *next = i->next;
464	delete i;	641	delete i;
465		642
466	i = next;	643	i = next;
…		…
478	* will point at garbage.	655	* will point at garbage.
479	*/	656	*/
480	void	657	void
481	object::copy_to (object *dst)	658	object::copy_to (object *dst)
482	{	659	{
483	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);	660	dst->remove ();
484	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
485
486	*(object_copy *)dst = *this;	661	*(object_copy *)dst = *this;
487		662	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		663
500	/* Copy over key_values, if any. */	664	/* Copy over key_values, if any. */
501	if (key_values)	665	if (key_values)
502	{	666	{
503	key_value *tail = 0;	667	key_value *tail = 0;
504	key_value *i;
505
506	dst->key_values = 0;	668	dst->key_values = 0;
507		669
508	for (i = key_values; i; i = i->next)	670	for (key_value *i = key_values; i; i = i->next)
509	{	671	{
510	key_value *new_link = new key_value;	672	key_value *new_link = new key_value;
511		673
512	new_link->next = 0;	674	new_link->next = 0;
513	new_link->key = i->key;	675	new_link->key = i->key;
514	new_link->value = i->value;	676	new_link->value = i->value;
515		677
516	/* Try and be clever here, too. */	678	/* Try and be clever here, too. */
517	if (!dst->key_values)	679	if (!dst->key_values)
518	{	680	{
…		…
525	tail = new_link;	687	tail = new_link;
526	}	688	}
527	}	689	}
528	}	690	}
529		691
530	update_ob_speed (dst);	692	if (speed < 0)
		693	dst->speed_left -= rndm ();
		694
		695	dst->activate ();
		696	}
		697
		698	void
		699	object::instantiate ()
		700	{
		701	if (!uuid.seq) // HACK
		702	uuid = UUID::gen ();
		703
		704	speed_left = -0.1f;
		705	/* copy the body_info to the body_used - this is only really
		706	* need for monsters, but doesn't hurt to do it for everything.
		707	* by doing so, when a monster is created, it has good starting
		708	* values for the body_used info, so when items are created
		709	* for it, they can be properly equipped.
		710	*/
		711	for (int i = NUM_BODY_LOCATIONS; i--; )
		712	slot[i].used = slot[i].info;
		713
		714	attachable::instantiate ();
531	}	715	}
532		716
533	object *	717	object *
534	object::clone ()	718	object::clone ()
535	{	719	{
536	object *neu = create ();	720	object *neu = create ();
537	copy_to (neu);	721	copy_to (neu);
		722	neu->map = map; // not copied by copy_to
538	return neu;	723	return neu;
539	}	724	}
540		725
541	/*	726	/*
542	* If an object with the IS_TURNABLE() flag needs to be turned due	727	* 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	728	* 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.	729	* be called to update the face variable, _and_ how it looks on the map.
545	*/	730	*/
546
547	void	731	void
548	update_turn_face (object *op)	732	update_turn_face (object *op)
549	{	733	{
550	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	734	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
551	return;	735	return;
		736
552	SET_ANIMATION (op, op->direction);	737	SET_ANIMATION (op, op->direction);
553	update_object (op, UP_OBJ_FACE);	738	update_object (op, UP_OBJ_FACE);
554	}	739	}
555		740
556	/*	741	/*
557	* Updates the speed of an object. If the speed changes from 0 to another	742	* 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.	743	* 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.	744	* This function needs to be called whenever the speed of an object changes.
560	*/	745	*/
561	void	746	void
562	update_ob_speed (object *op)	747	object::set_speed (float speed)
563	{	748	{
564	extern int arch_init;	749	this->speed = speed;
565		750
566	/* No reason putting the archetypes objects on the speed list,	751	if (has_active_speed ())
567	* since they never really need to be updated.	752	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	753	else
599	{	754	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	}	755	}
654		756
655	/*	757	/*
656	* update_object() updates the the map.	758	* update_object() updates the the map.
657	* It takes into account invisible objects (and represent squares covered	759	* It takes into account invisible objects (and represent squares covered
…		…
670	* UP_OBJ_FACE: only the objects face has changed.	772	* UP_OBJ_FACE: only the objects face has changed.
671	*/	773	*/
672	void	774	void
673	update_object (object *op, int action)	775	update_object (object *op, int action)
674	{	776	{
675	MoveType move_on, move_off, move_block, move_slow;	777	if (!op)
676
677	if (op == NULL)
678	{	778	{
679	/* this should never happen */	779	/* this should never happen */
680	LOG (llevDebug, "update_object() called for NULL object.\n");	780	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
681	return;	781	return;
682	}	782	}
683		783
684	if (op->env)	784	if (!op->is_on_map ())
685	{	785	{
686	/* Animation is currently handled by client, so nothing	786	/* Animation is currently handled by client, so nothing
687	* to do in this case.	787	* to do in this case.
688	*/	788	*/
689	return;	789	return;
690	}	790	}
691		791
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 */	792	/* 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))	793	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
700	{	794	{
701	LOG (llevError, "update_object() called for object out of map!\n");	795	LOG (llevError, "update_object() called for object out of map!\n");
702	#ifdef MANY_CORES	796	#ifdef MANY_CORES
703	abort ();	797	abort ();
704	#endif	798	#endif
705	return;	799	return;
706	}	800	}
707		801
708	mapspace &m = op->ms ();	802	mapspace &m = op->ms ();
709		803
710	if (m.flags_ & P_NEED_UPDATE)	804	if (!(m.flags_ & P_UPTODATE))
711	/* nop */;	805	/* nop */;
712	else if (action == UP_OBJ_INSERT)	806	else if (action == UP_OBJ_INSERT)
713	{	807	{
		808	#if 0
714	// this is likely overkill, TODO: revisit (schmorp)	809	// this is likely overkill, TODO: revisit (schmorp)
715	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))	810	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
716	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))	811	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
717	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))	812	|| (op->is_player () && !(m.flags_ & P_PLAYER))
718	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))	813	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
719	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))	814	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
720	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))	815	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
721	|| (m.move_on | op->move_on ) != m.move_on	816	|| (m.move_on | op->move_on ) != m.move_on
722	|| (m.move_off | op->move_off ) != m.move_off	817	|| (m.move_off | op->move_off ) != m.move_off
723	|| (m.move_slow | op->move_slow) != m.move_slow	818	|| (m.move_slow | op->move_slow) != m.move_slow
724	/* This isn't perfect, but I don't expect a lot of objects to	819	/* This isn't perfect, but I don't expect a lot of objects to
725	* to have move_allow right now.	820	* have move_allow right now.
726	*/	821	*/
727	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block	822	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
		823	m.invalidate ();
		824	#else
728	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)	825	// the above is not strong enough a test to skip updating. los maybe? TODO (schmorp)
729	m.flags_ = P_NEED_UPDATE;	826	m.invalidate ();
		827	#endif
730	}	828	}
731	/* if the object is being removed, we can't make intelligent	829	/* if the object is being removed, we can't make intelligent
732	* decisions, because remove_ob can't really pass the object	830	* decisions, because remove_ob can't really pass the object
733	* that is being removed.	831	* that is being removed.
734	*/	832	*/
735	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	833	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
736	m.flags_ = P_NEED_UPDATE;	834	m.invalidate ();
737	else if (action == UP_OBJ_FACE)	835	else if (action == UP_OBJ_FACE)
738	/* Nothing to do for that case */ ;	836	/* Nothing to do for that case */ ;
739	else	837	else
740	LOG (llevError, "update_object called with invalid action: %d\n", action);	838	LOG (llevError, "update_object called with invalid action: %d\n", action);
741		839
742	if (op->more)	840	if (op->more)
743	update_object (op->more, action);	841	update_object (op->more, action);
744	}	842	}
745		843
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 ()	844	object::object ()
763	{	845	{
764	SET_FLAG (this, FLAG_REMOVED);	846	SET_FLAG (this, FLAG_REMOVED);
765		847
766	expmul = 1.0;	848	//expmul = 1.0; declared const for the time being
767	face = blank_face;	849	face = blank_face;
		850	material = MATERIAL_NULL;
768	}	851	}
769		852
770	object::~object ()	853	object::~object ()
771	{	854	{
		855	unlink ();
		856
772	free_key_values (this);	857	free_key_values (this);
773	}	858	}
774		859
		860	static int object_count;
		861
775	void object::link ()	862	void object::link ()
776	{	863	{
		864	assert (!index);//D
		865	uuid = UUID::gen ();
777	count = ++ob_count;	866	count = ++object_count;
778	uuid = gen_uuid ();
779		867
780	prev = 0;	868	refcnt_inc ();
781	next = object::first;	869	objects.insert (this);
782
783	if (object::first)
784	object::first->prev = this;
785
786	object::first = this;
787	}	870	}
788		871
789	void object::unlink ()	872	void object::unlink ()
790	{	873	{
791	if (this == object::first)	874	if (!index)
792	object::first = next;	875	return;
793		876
794	/* Remove this object from the list of used objects */	877	objects.erase (this);
795	if (prev) prev->next = next;	878	refcnt_dec ();
796	if (next) next->prev = prev;	879	}
797		880
798	prev = 0;	881	void
799	next = 0;	882	object::activate ()
		883	{
		884	/* If already on active list, don't do anything */
		885	if (active)
		886	return;
		887
		888	if (has_active_speed ())
		889	{
		890	if (flag [FLAG_FREED])
		891	LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
		892
		893	actives.insert (this);
		894	}
		895	}
		896
		897	void
		898	object::activate_recursive ()
		899	{
		900	activate ();
		901
		902	for (object *op = inv; op; op = op->below)
		903	op->activate_recursive ();
		904	}
		905
		906	/* This function removes object 'op' from the list of active
		907	* objects.
		908	* This should only be used for style maps or other such
		909	* reference maps where you don't want an object that isn't
		910	* in play chewing up cpu time getting processed.
		911	* The reverse of this is to call update_ob_speed, which
		912	* will do the right thing based on the speed of the object.
		913	*/
		914	void
		915	object::deactivate ()
		916	{
		917	/* If not on the active list, nothing needs to be done */
		918	if (!active)
		919	return;
		920
		921	actives.erase (this);
		922	}
		923
		924	void
		925	object::deactivate_recursive ()
		926	{
		927	for (object *op = inv; op; op = op->below)
		928	op->deactivate_recursive ();
		929
		930	deactivate ();
		931	}
		932
		933	void
		934	object::set_flag_inv (int flag, int value)
		935	{
		936	for (object *op = inv; op; op = op->below)
		937	{
		938	op->flag [flag] = value;
		939	op->set_flag_inv (flag, value);
		940	}
		941	}
		942
		943	/*
		944	* Remove and free all objects in the inventory of the given object.
		945	* object.c ?
		946	*/
		947	void
		948	object::destroy_inv (bool drop_to_ground)
		949	{
		950	// need to check first, because the checks below might segfault
		951	// as we might be on an invalid mapspace and crossfire code
		952	// is too buggy to ensure that the inventory is empty.
		953	// corollary: if you create arrows etc. with stuff in its inventory,
		954	// cf will crash below with off-map x and y
		955	if (!inv)
		956	return;
		957
		958	/* Only if the space blocks everything do we not process -
		959	* if some form of movement is allowed, let objects
		960	* drop on that space.
		961	*/
		962	if (!drop_to_ground
		963	|| !map
		964	|| map->in_memory != MAP_ACTIVE
		965	|| map->no_drop
		966	|| ms ().move_block == MOVE_ALL)
		967	{
		968	while (inv)
		969	inv->destroy ();
		970	}
		971	else
		972	{ /* Put objects in inventory onto this space */
		973	while (inv)
		974	{
		975	object *op = inv;
		976
		977	if (op->flag [FLAG_STARTEQUIP]
		978	|| op->flag [FLAG_NO_DROP]
		979	|| op->type == RUNE
		980	|| op->type == TRAP
		981	|| op->flag [FLAG_IS_A_TEMPLATE]
		982	|| op->flag [FLAG_DESTROY_ON_DEATH])
		983	op->destroy ();
		984	else
		985	map->insert (op, x, y);
		986	}
		987	}
800	}	988	}
801		989
802	object *object::create ()	990	object *object::create ()
803	{	991	{
804	object *op = new object;	992	object *op = new object;
805	op->link ();	993	op->link ();
806	return op;	994	return op;
807	}	995	}
808		996
809	/*	997	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	{	998	{
821	if (QUERY_FLAG (this, FLAG_FREED))	999	freed_map ()
		1000	{
		1001	path = "<freed objects map>";
		1002	name = "/internal/freed_objects_map";
		1003	width = 3;
		1004	height = 3;
		1005	no_drop = 1;
		1006	no_reset = 1;
		1007
		1008	alloc ();
		1009	in_memory = MAP_ACTIVE;
		1010	}
		1011
		1012	~freed_map ()
		1013	{
		1014	destroy ();
		1015	}
		1016	} freed_map; // freed objects are moved here to avoid crashes
		1017
		1018	void
		1019	object::do_destroy ()
		1020	{
		1021	if (flag [FLAG_IS_LINKED])
		1022	remove_link ();
		1023
		1024	if (flag [FLAG_FRIENDLY])
		1025	remove_friendly_object (this);
		1026
		1027	remove ();
		1028
		1029	attachable::do_destroy ();
		1030
		1031	deactivate ();
		1032	unlink ();
		1033
		1034	flag [FLAG_FREED] = 1;
		1035
		1036	// hack to ensure that freed objects still have a valid map
		1037	map = &freed_map;
		1038	x = 1;
		1039	y = 1;
		1040
		1041	if (more)
		1042	{
		1043	more->destroy ();
		1044	more = 0;
		1045	}
		1046
		1047	head = 0;
		1048
		1049	// clear those pointers that likely might cause circular references
		1050	owner = 0;
		1051	enemy = 0;
		1052	attacked_by = 0;
		1053	current_weapon = 0;
		1054	}
		1055
		1056	void
		1057	object::destroy ()
		1058	{
		1059	if (destroyed ())
822	return;	1060	return;
823		1061
824	if (QUERY_FLAG (this, FLAG_FRIENDLY))	1062	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	{	1063	{
886	freed_map = new maptile;	1064	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
887		1065	head->destroy ();
888	freed_map->name = "/internal/freed_objects_map";	1066	return;
889	freed_map->width = 3;
890	freed_map->height = 3;
891
892	freed_map->allocate ();
893	}	1067	}
894		1068
895	map = freed_map;	1069	destroy_inv (false);
896	x = 1;
897	y = 1;
898	}
899		1070
900	// clear those pointers that likely might have circular references to us	1071	if (is_head ())
901	owner = 0;	1072	if (sound_destroy)
902	enemy = 0;	1073	play_sound (sound_destroy);
903	attacked_by = 0;	1074	else if (flag [FLAG_MONSTER])
		1075	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
904		1076
905	// only relevant for players(?), but make sure of it anyways	1077	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	}	1078	}
933		1079
934	/* op->remove ():	1080	/* op->remove ():
935	* This function removes the object op from the linked list of objects	1081	* 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	1082	* which it is currently tied to. When this function is done, the
937	* object will have no environment. If the object previously had an	1083	* object will have no environment. If the object previously had an
938	* environment, the x and y coordinates will be updated to	1084	* environment, the x and y coordinates will be updated to
939	* the previous environment.	1085	* the previous environment.
940	* Beware: This function is called from the editor as well!
941	*/	1086	*/
942	void	1087	void
943	object::remove ()	1088	object::do_remove ()
944	{	1089	{
945	object *tmp, *last = 0;	1090	if (flag [FLAG_REMOVED])
946	object *otmp;
947
948	int check_walk_off;
949
950	if (QUERY_FLAG (this, FLAG_REMOVED))
951	return;	1091	return;
952		1092
953	SET_FLAG (this, FLAG_REMOVED);	1093	INVOKE_OBJECT (REMOVE, this);
		1094
		1095	flag [FLAG_REMOVED] = true;
954		1096
955	if (more)	1097	if (more)
956	more->remove ();	1098	more->remove ();
957		1099
958	/*	1100	/*
959	* In this case, the object to be removed is in someones	1101	* In this case, the object to be removed is in someones
960	* inventory.	1102	* inventory.
961	*/	1103	*/
962	if (env)	1104	if (env)
963	{	1105	{
964	if (nrof)	1106	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
965	sub_weight (env, weight * nrof);	1107	if (object *pl = visible_to ())
966	else	1108	esrv_del_item (pl->contr, count);
967	sub_weight (env, weight + carrying);	1109	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
968		1110
969	/* NO_FIX_PLAYER is set when a great many changes are being	1111	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		1112
976	if (above != NULL)	1113	object *pl = in_player ();
977	above->below = below;
978	else
979	env->inv = below;
980
981	if (below != NULL)
982	below->above = above;
983		1114
984	/* we set up values so that it could be inserted into	1115	/* we set up values so that it could be inserted into
985	* the map, but we don't actually do that - it is up	1116	* the map, but we don't actually do that - it is up
986	* to the caller to decide what we want to do.	1117	* to the caller to decide what we want to do.
987	*/	1118	*/
988	x = env->x, y = env->y;
989	map = env->map;	1119	map = env->map;
990	above = 0, below = 0;	1120	x = env->x;
991	env = 0;	1121	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		1122
999	/* link the object above us */	1123	// make sure cmov optimisation is applicable
1000	if (above)	1124	*(above ? &above->below : &env->inv) = below;
1001	above->below = below;	1125	*(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		1126
1028	above = 0;	1127	above = 0;
1029	below = 0;	1128	below = 0;
		1129	env = 0;
		1130
		1131	if (pl && pl->is_player ())
		1132	{
		1133	pl->contr->queue_stats_update ();
		1134
		1135	if (glow_radius && pl->is_on_map ())
		1136	update_all_los (pl->map, pl->x, pl->y);
		1137	}
		1138	}
		1139	else if (map)
		1140	{
		1141	map->dirty = true;
		1142	mapspace &ms = this->ms ();
		1143
		1144	if (object *pl = ms.player ())
		1145	{
		1146	if (is_player ())
		1147	{
		1148	if (!flag [FLAG_WIZPASS])
		1149	ms.smell = ++mapspace::smellcount; // remember the smell of the player
		1150
		1151	// leaving a spot always closes any open container on the ground
		1152	if (container && !container->env)
		1153	// this causes spurious floorbox updates, but it ensures
		1154	// that the CLOSE event is being sent.
		1155	close_container ();
		1156
		1157	--map->players;
		1158	map->touch ();
		1159	}
		1160	else if (pl->container_ () == this)
		1161	{
		1162	// removing a container should close it
		1163	close_container ();
		1164	}
		1165
		1166	esrv_del_item (pl->contr, count);
		1167	}
		1168
		1169	/* link the object above us */
		1170	// re-link, make sure compiler can easily use cmove
		1171	*(above ? &above->below : &ms.top) = below;
		1172	*(below ? &below->above : &ms.bot) = above;
		1173
		1174	above = 0;
		1175	below = 0;
		1176
		1177	ms.invalidate ();
1030		1178
1031	if (map->in_memory == MAP_SAVING)	1179	if (map->in_memory == MAP_SAVING)
1032	return;	1180	return;
1033		1181
1034	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);	1182	int check_walk_off = !flag [FLAG_NO_APPLY];
1035		1183
1036	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)	1184	if (object *pl = ms.player ())
1037	{	1185	{
1038	/* No point updating the players look faces if he is the object	1186	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	1187	/* If a container that the player is currently using somehow gets
1045	* removed (most likely destroyed), update the player view	1188	* removed (most likely destroyed), update the player view
1046	* appropriately.	1189	* appropriately.
1047	*/	1190	*/
1048	if (tmp->container == this)	1191	pl->close_container ();
1049	{
1050	CLEAR_FLAG (this, FLAG_APPLIED);
1051	tmp->container = 0;
1052	}
1053		1192
		1193	//TODO: the floorbox prev/next might need updating
		1194	//esrv_del_item (pl->contr, count);
		1195	//TODO: update floorbox to preserve ordering
		1196	if (pl->contr->ns)
1054	tmp->contr->ns->floorbox_update ();	1197	pl->contr->ns->floorbox_update ();
		1198	}
		1199
		1200	if (check_walk_off)
		1201	for (object *above, *tmp = ms.bot; tmp; tmp = above)
		1202	{
		1203	above = tmp->above;
		1204
		1205	/* No point updating the players look faces if he is the object
		1206	* being removed.
1055	}	1207	*/
1056		1208
1057	/* See if player moving off should effect something */	1209	/* See if object moving off should effect something */
1058	if (check_walk_off
1059	&& ((move_type & tmp->move_off)	1210	if ((move_type & tmp->move_off)
1060	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1211	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0)
1061	{
1062	move_apply (tmp, this, 0);	1212	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	}	1213	}
1067		1214
1068	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1215	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);	1216	update_all_los (map, x, y);
1084	}	1217	}
1085	}	1218	}
1086		1219
1087	/*	1220	/*
…		…
1096	merge_ob (object *op, object *top)	1229	merge_ob (object *op, object *top)
1097	{	1230	{
1098	if (!op->nrof)	1231	if (!op->nrof)
1099	return 0;	1232	return 0;
1100		1233
1101	if (top == NULL)	1234	if (!top)
1102	for (top = op; top != NULL && top->above != NULL; top = top->above);	1235	for (top = op; top && top->above; top = top->above)
		1236	;
1103		1237
1104	for (; top != NULL; top = top->below)	1238	for (; top; top = top->below)
1105	{
1106	if (top == op)
1107	continue;
1108
1109	if (object::can_merge (op, top))	1239	if (object::can_merge (op, top))
1110	{	1240	{
1111	top->nrof += op->nrof;	1241	top->nrof += op->nrof;
1112		1242
1113	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1243	if (object *pl = top->visible_to ())
1114	op->weight = 0; /* Don't want any adjustements now */	1244	esrv_update_item (UPD_NROF, pl, top);
		1245
		1246	op->weight = 0; // cancel the addition above
		1247	op->carrying = 0; // must be 0 already
		1248
1115	op->destroy ();	1249	op->destroy ();
		1250
1116	return top;	1251	return top;
1117	}	1252	}
1118	}
1119		1253
1120	return 0;	1254	return 0;
1121	}	1255	}
1122		1256
		1257	void
		1258	object::expand_tail ()
		1259	{
		1260	if (more)
		1261	return;
		1262
		1263	object *prev = this;
		1264
		1265	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1266	{
		1267	object *op = arch_to_object (at);
		1268
		1269	op->name = name;
		1270	op->name_pl = name_pl;
		1271	op->title = title;
		1272
		1273	op->head = this;
		1274	prev->more = op;
		1275
		1276	prev = op;
		1277	}
		1278	}
		1279
1123	/*	1280	/*
1124	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1281	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1125	* job preparing multi-part monsters	1282	* job preparing multi-part monsters.
1126	*/	1283	*/
1127	object *	1284	object *
1128	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1285	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1129	{	1286	{
1130	object *tmp;	1287	op->remove ();
1131		1288
1132	if (op->head)
1133	op = op->head;
1134
1135	for (tmp = op; tmp; tmp = tmp->more)	1289	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1136	{	1290	{
1137	tmp->x = x + tmp->arch->clone.x;	1291	tmp->x = x + tmp->arch->x;
1138	tmp->y = y + tmp->arch->clone.y;	1292	tmp->y = y + tmp->arch->y;
1139	}	1293	}
1140		1294
1141	return insert_ob_in_map (op, m, originator, flag);	1295	return insert_ob_in_map (op, m, originator, flag);
1142	}	1296	}
1143		1297
…		…
1159	* Return value:	1313	* Return value:
1160	* new object if 'op' was merged with other object	1314	* new object if 'op' was merged with other object
1161	* NULL if 'op' was destroyed	1315	* NULL if 'op' was destroyed
1162	* just 'op' otherwise	1316	* just 'op' otherwise
1163	*/	1317	*/
1164
1165	object *	1318	object *
1166	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1319	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1167	{	1320	{
1168	object *tmp, *top, *floor = NULL;	1321	op->remove ();
1169	sint16 x, y;
1170		1322
1171	if (QUERY_FLAG (op, FLAG_FREED))	1323	if (m == &freed_map)//D TODO: remove soon
1172	{	1324	{//D
1173	LOG (llevError, "Trying to insert freed object!\n");	1325	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
1174	return NULL;
1175	}	1326	}//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		1327
1240	/* Ideally, the caller figures this out. However, it complicates a lot	1328	/* 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	1329	* of areas of callers (eg, anything that uses find_free_spot would now
1242	* need extra work	1330	* need extra work
1243	*/	1331	*/
1244	op->map = get_map_from_coord (m, &op->x, &op->y);	1332	maptile *newmap = m;
1245	x = op->x;	1333	if (!xy_normalise (newmap, op->x, op->y))
1246	y = op->y;	1334	{
		1335	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
		1336	return 0;
		1337	}
		1338
		1339	if (object *more = op->more)
		1340	if (!insert_ob_in_map (more, m, originator, flag))
		1341	return 0;
		1342
		1343	op->flag [FLAG_REMOVED] = false;
		1344	op->env = 0;
		1345	op->map = newmap;
		1346
		1347	mapspace &ms = op->ms ();
1247		1348
1248	/* this has to be done after we translate the coordinates.	1349	/* this has to be done after we translate the coordinates.
1249	*/	1350	*/
1250	if (op->nrof && !(flag & INS_NO_MERGE))	1351	if (op->nrof && !(flag & INS_NO_MERGE))
1251	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1352	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1252	if (object::can_merge (op, tmp))	1353	if (object::can_merge (op, tmp))
1253	{	1354	{
		1355	// TODO: we actually want to update tmp, not op,
		1356	// but some caller surely breaks when we return tmp
		1357	// from here :/
1254	op->nrof += tmp->nrof;	1358	op->nrof += tmp->nrof;
1255	tmp->destroy ();	1359	tmp->destroy ();
1256	}	1360	}
1257		1361
1258	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1362	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
…		…
1267	{	1371	{
1268	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1372	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1269	abort ();	1373	abort ();
1270	}	1374	}
1271		1375
		1376	if (!originator->is_on_map ())
		1377	{
		1378	LOG (llevError, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1379	op->debug_desc (), originator->debug_desc ());
		1380	abort ();
		1381	}
		1382
1272	op->above = originator;	1383	op->above = originator;
1273	op->below = originator->below;	1384	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;	1385	originator->below = op;
		1386
		1387	*(op->below ? &op->below->above : &ms.bot) = op;
1282	}	1388	}
1283	else	1389	else
1284	{	1390	{
		1391	object *floor = 0;
		1392	object *top = ms.top;
		1393
1285	/* If there are other objects, then */	1394	/* If there are other objects, then */
1286	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1395	if (top)
1287	{	1396	{
1288	object *last = NULL;
1289
1290	/*	1397	/*
1291	* If there are multiple objects on this space, we do some trickier handling.	1398	* If there are multiple objects on this space, we do some trickier handling.
1292	* We've already dealt with merging if appropriate.	1399	* We've already dealt with merging if appropriate.
1293	* Generally, we want to put the new object on top. But if	1400	* Generally, we want to put the new object on top. But if
1294	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1401	* 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	1404	* 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	1405	* 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	1406	* when lots of spells are cast in one area. Currently, it is presumed
1300	* that flying non pickable objects are spell objects.	1407	* that flying non pickable objects are spell objects.
1301	*/	1408	*/
1302		1409	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1303	while (top != NULL)
1304	{	1410	{
1305	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1411	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
1306	floor = top;	1412	floor = tmp;
1307		1413
1308	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1414	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1309	{	1415	{
1310	/* We insert above top, so we want this object below this */	1416	/* We insert above top, so we want this object below this */
1311	top = top->below;	1417	top = tmp->below;
1312	break;	1418	break;
1313	}	1419	}
1314		1420
1315	last = top;
1316	top = top->above;	1421	top = tmp;
1317	}	1422	}
1318
1319	/* Don't want top to be NULL, so set it to the last valid object */
1320	top = last;
1321		1423
1322	/* We let update_position deal with figuring out what the space	1424	/* We let update_position deal with figuring out what the space
1323	* looks like instead of lots of conditions here.	1425	* looks like instead of lots of conditions here.
1324	* makes things faster, and effectively the same result.	1426	* makes things faster, and effectively the same result.
1325	*/	1427	*/
1326		1428
1327	/* Have object 'fall below' other objects that block view.	1429	/* Have object 'fall below' other objects that block view.
1328	* Unless those objects are exits, type 66	1430	* Unless those objects are exits.
1329	* If INS_ON_TOP is used, don't do this processing	1431	* If INS_ON_TOP is used, don't do this processing
1330	* Need to find the object that in fact blocks view, otherwise	1432	* Need to find the object that in fact blocks view, otherwise
1331	* stacking is a bit odd.	1433	* stacking is a bit odd.
1332	*/	1434	*/
1333	if (!(flag & INS_ON_TOP) &&	1435	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))	1436	&& ms.flags () & P_BLOCKSVIEW
		1437	&& (op->face && !faces [op->face].visibility))
1335	{	1438	{
		1439	object *last;
		1440
1336	for (last = top; last != floor; last = last->below)	1441	for (last = top; last != floor; last = last->below)
1337	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1442	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1338	break;	1443	break;
		1444
1339	/* Check to see if we found the object that blocks view,	1445	/* Check to see if we found the object that blocks view,
1340	* and make sure we have a below pointer for it so that	1446	* and make sure we have a below pointer for it so that
1341	* we can get inserted below this one, which requires we	1447	* we can get inserted below this one, which requires we
1342	* set top to the object below us.	1448	* set top to the object below us.
1343	*/	1449	*/
1344	if (last && last->below && last != floor)	1450	if (last && last->below && last != floor)
1345	top = last->below;	1451	top = last->below;
1346	}	1452	}
1347	} /* If objects on this space */	1453	} /* If objects on this space */
1348		1454
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)	1455	if (flag & INS_ABOVE_FLOOR_ONLY)
1353	top = floor;	1456	top = floor;
1354		1457
1355	/* Top is the object that our object (op) is going to get inserted above.	1458	// insert object above top, or bottom-most if top = 0
1356	*/
1357
1358	/* First object on this space */
1359	if (!top)	1459	if (!top)
1360	{	1460	{
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;	1461	op->below = 0;
		1462	op->above = ms.bot;
1367	op->ms ().bottom = op;	1463	ms.bot = op;
		1464
		1465	*(op->above ? &op->above->below : &ms.top) = op;
1368	}	1466	}
1369	else	1467	else
1370	{ /* get inserted into the stack above top */	1468	{
1371	op->above = top->above;	1469	op->above = top->above;
1372
1373	if (op->above)
1374	op->above->below = op;	1470	top->above = op;
1375		1471
1376	op->below = top;	1472	op->below = top;
1377	top->above = op;	1473	*(op->above ? &op->above->below : &ms.top) = op;
1378	}	1474	}
		1475	}
1379		1476
1380	if (op->above == NULL)	1477	if (op->is_player ())
1381	op->ms ().top = op;	1478	{
1382	} /* else not INS_BELOW_ORIGINATOR */
1383
1384	if (op->type == PLAYER)
1385	op->contr->do_los = 1;	1479	op->contr->do_los = 1;
		1480	++op->map->players;
		1481	op->map->touch ();
		1482	}
1386		1483
1387	/* If we have a floor, we know the player, if any, will be above	1484	op->map->dirty = true;
1388	* it, so save a few ticks and start from there.	1485
1389	*/
1390	if (!(flag & INS_MAP_LOAD))
1391	if (object *pl = op->ms ().player ())	1486	if (object *pl = ms.player ())
		1487	//TODO: the floorbox prev/next might need updating
		1488	//esrv_send_item (pl, op);
		1489	//TODO: update floorbox to preserve ordering
		1490	if (pl->contr->ns)
1392	pl->contr->ns->floorbox_update ();	1491	pl->contr->ns->floorbox_update ();
1393		1492
1394	/* If this object glows, it may affect lighting conditions that are	1493	/* If this object glows, it may affect lighting conditions that are
1395	* visible to others on this map. But update_all_los is really	1494	* 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	1495	* 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	1496	* on the map will get recalculated. The players could very well
1398	* be far away from this change and not affected in any way -	1497	* be far away from this change and not affected in any way -
1399	* this should get redone to only look for players within range,	1498	* this should get redone to only look for players within range,
1400	* or just updating the P_NEED_UPDATE for spaces within this area	1499	* or just updating the P_UPTODATE for spaces within this area
1401	* of effect may be sufficient.	1500	* of effect may be sufficient.
1402	*/	1501	*/
1403	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1502	if (op->affects_los ())
		1503	{
		1504	op->ms ().invalidate ();
1404	update_all_los (op->map, op->x, op->y);	1505	update_all_los (op->map, op->x, op->y);
		1506	}
1405		1507
1406	/* updates flags (blocked, alive, no magic, etc) for this map space */	1508	/* updates flags (blocked, alive, no magic, etc) for this map space */
1407	update_object (op, UP_OBJ_INSERT);	1509	update_object (op, UP_OBJ_INSERT);
		1510
		1511	INVOKE_OBJECT (INSERT, op);
1408		1512
1409	/* Don't know if moving this to the end will break anything. However,	1513	/* Don't know if moving this to the end will break anything. However,
1410	* we want to have floorbox_update called before calling this.	1514	* we want to have floorbox_update called before calling this.
1411	*	1515	*
1412	* check_move_on() must be after this because code called from	1516	* check_move_on() must be after this because code called from
…		…
1414	* blocked() and wall() work properly), and these flags are updated by	1518	* blocked() and wall() work properly), and these flags are updated by
1415	* update_object().	1519	* update_object().
1416	*/	1520	*/
1417		1521
1418	/* if this is not the head or flag has been passed, don't check walk on status */	1522	/* 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)	1523	if (!(flag & INS_NO_WALK_ON) && op->is_head ())
1420	{	1524	{
1421	if (check_move_on (op, originator))	1525	if (check_move_on (op, originator))
1422	return NULL;	1526	return 0;
1423		1527
1424	/* If we are a multi part object, lets work our way through the check	1528	/* If we are a multi part object, lets work our way through the check
1425	* walk on's.	1529	* walk on's.
1426	*/	1530	*/
1427	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1531	for (object *tmp = op->more; tmp; tmp = tmp->more)
1428	if (check_move_on (tmp, originator))	1532	if (check_move_on (tmp, originator))
1429	return NULL;	1533	return 0;
1430	}	1534	}
1431		1535
1432	return op;	1536	return op;
1433	}	1537	}
1434		1538
1435	/* this function inserts an object in the map, but if it	1539	/* 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.	1540	* 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.	1541	* op is the object to insert it under: supplies x and the map.
1438	*/	1542	*/
1439	void	1543	void
1440	replace_insert_ob_in_map (const char *arch_string, object *op)	1544	replace_insert_ob_in_map (shstr_tmp archname, object *op)
1441	{	1545	{
1442	object *tmp, *tmp1;
1443
1444	/* first search for itself and remove any old instances */	1546	/* first search for itself and remove any old instances */
1445		1547
1446	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1548	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1447	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1549	if (tmp->arch->archname == archname) /* same archetype */
1448	tmp->destroy ();	1550	tmp->destroy ();
1449		1551
1450	tmp1 = arch_to_object (archetype::find (arch_string));	1552	object *tmp = arch_to_object (archetype::find (archname));
1451		1553
1452	tmp1->x = op->x;	1554	tmp->x = op->x;
1453	tmp1->y = op->y;	1555	tmp->y = op->y;
		1556
1454	insert_ob_in_map (tmp1, op->map, op, 0);	1557	insert_ob_in_map (tmp, op->map, op, 0);
1455	}	1558	}
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		1559
1465	object *	1560	object *
1466	get_split_ob (object *orig_ob, uint32 nr)	1561	object::insert_at (object *where, object *originator, int flags)
1467	{	1562	{
1468	object *newob;	1563	if (where->env)
1469	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1564	return where->env->insert (this);
1470		1565	else
1471	if (orig_ob->nrof < nr)	1566	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	}	1567	}
1497		1568
		1569	// check whether we can put this into the map, respect max_volume, max_items
		1570	bool
		1571	object::can_drop_at (maptile *m, int x, int y, object *originator)
		1572	{
		1573	mapspace &ms = m->at (x, y);
		1574
		1575	int items = ms.items ();
		1576
		1577	if (!items // testing !items ensures we can drop at least one item
		1578	|| (items < m->max_items
		1579	&& ms.volume () < m->max_volume))
		1580	return true;
		1581
		1582	if (originator && originator->is_player ())
		1583	originator->contr->failmsg (format (
		1584	"No matter how hard you try, you just cannot put the %s here H<Try to remove some items from the floor first.>",
		1585	query_name ()
		1586	));
		1587
		1588	return false;
		1589	}
		1590
1498	/*	1591	/*
1499	* decrease_ob_nr(object, number) decreases a specified number from	1592	* decrease(object, number) decreases a specified number from
1500	* the amount of an object. If the amount reaches 0, the object	1593	* the amount of an object. If the amount reaches 0, the object
1501	* is subsequently removed and freed.	1594	* is subsequently removed and freed.
1502	*	1595	*
1503	* Return value: 'op' if something is left, NULL if the amount reached 0	1596	* Return value: 'op' if something is left, NULL if the amount reached 0
1504	*/	1597	*/
		1598	bool
		1599	object::decrease (sint32 nr)
		1600	{
		1601	if (!nr)
		1602	return true;
1505		1603
		1604	nr = min (nr, nrof);
		1605
		1606	if (nrof > nr)
		1607	{
		1608	nrof -= nr;
		1609	adjust_weight (env, -weight * max (1, nr)); // carrying == 0
		1610
		1611	if (object *pl = visible_to ())
		1612	esrv_update_item (UPD_NROF, pl, this);
		1613
		1614	return true;
		1615	}
		1616	else
		1617	{
		1618	destroy ();
		1619	return false;
		1620	}
		1621	}
		1622
		1623	/*
		1624	* split(ob,nr) splits up ob into two parts. The part which
		1625	* is returned contains nr objects, and the remaining parts contains
		1626	* the rest (or is removed and returned if that number is 0).
		1627	* On failure, NULL is returned.
		1628	*/
1506	object *	1629	object *
1507	decrease_ob_nr (object *op, uint32 i)	1630	object::split (sint32 nr)
1508	{	1631	{
1509	object *tmp;	1632	int have = number_of ();
1510	player *pl;
1511		1633
1512	if (i == 0) /* objects with op->nrof require this check */	1634	if (have < nr)
1513	return op;	1635	return 0;
1514		1636	else if (have == nr)
1515	if (i > op->nrof)
1516	i = op->nrof;
1517
1518	if (QUERY_FLAG (op, FLAG_REMOVED))
1519	op->nrof -= i;
1520	else if (op->env)
1521	{	1637	{
1522	/* is this object in the players inventory, or sub container
1523	* therein?
1524	*/
1525	tmp = op->in_player ();
1526	/* nope. Is this a container the player has opened?
1527	* If so, set tmp to that player.
1528	* IMO, searching through all the players will mostly
1529	* likely be quicker than following op->env to the map,
1530	* and then searching the map for a player.
1531	*/
1532	if (!tmp)
1533	{
1534	for (pl = first_player; pl; pl = pl->next)
1535	if (pl->ob->container == op->env)
1536	{
1537	tmp = pl->ob;
1538	break;
1539	}
1540	}
1541
1542	if (i < op->nrof)
1543	{
1544	sub_weight (op->env, op->weight * i);
1545	op->nrof -= i;
1546	if (tmp)
1547	esrv_send_item (tmp, op);
1548	}
1549	else
1550	{
1551	op->remove ();	1638	remove ();
1552	op->nrof = 0;	1639	return this;
1553	if (tmp)
1554	esrv_del_item (tmp->contr, op->count);
1555	}
1556	}	1640	}
1557	else	1641	else
1558	{	1642	{
1559	object *above = op->above;	1643	decrease (nr);
1560		1644
1561	if (i < op->nrof)	1645	object *op = deep_clone ();
1562	op->nrof -= i;	1646	op->nrof = nr;
1563	else
1564	{
1565	op->remove ();
1566	op->nrof = 0;
1567	}
1568
1569	/* Since we just removed op, op->above is null */
1570	for (tmp = above; tmp; tmp = tmp->above)
1571	if (tmp->type == PLAYER)
1572	{
1573	if (op->nrof)
1574	esrv_send_item (tmp, op);
1575	else
1576	esrv_del_item (tmp->contr, op->count);
1577	}
1578	}
1579
1580	if (op->nrof)
1581	return op;	1647	return op;
1582	else
1583	{
1584	op->destroy ();
1585	return 0;
1586	}
1587	}
1588
1589	/*
1590	* add_weight(object, weight) adds the specified weight to an object,
1591	* and also updates how much the environment(s) is/are carrying.
1592	*/
1593
1594	void
1595	add_weight (object *op, signed long weight)
1596	{
1597	while (op != NULL)
1598	{
1599	if (op->type == CONTAINER)
1600	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1601
1602	op->carrying += weight;
1603	op = op->env;
1604	}	1648	}
1605	}	1649	}
1606		1650
1607	object *	1651	object *
1608	insert_ob_in_ob (object *op, object *where)	1652	insert_ob_in_ob (object *op, object *where)
…		…
1613	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1657	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1614	free (dump);	1658	free (dump);
1615	return op;	1659	return op;
1616	}	1660	}
1617		1661
1618	if (where->head)	1662	if (where->head_ () != where)
1619	{	1663	{
1620	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");	1664	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1621	where = where->head;	1665	where = where->head;
1622	}	1666	}
1623		1667
1624	return where->insert (op);	1668	return where->insert (op);
1625	}	1669	}
…		…
1630	* inside the object environment.	1674	* inside the object environment.
1631	*	1675	*
1632	* The function returns now pointer to inserted item, and return value can	1676	* The function returns now pointer to inserted item, and return value can
1633	* be != op, if items are merged. -Tero	1677	* be != op, if items are merged. -Tero
1634	*/	1678	*/
1635
1636	object *	1679	object *
1637	object::insert (object *op)	1680	object::insert (object *op)
1638	{	1681	{
1639	object *tmp, *otmp;
1640
1641	if (!QUERY_FLAG (op, FLAG_REMOVED))
1642	op->remove ();
1643
1644	if (op->more)	1682	if (op->more)
1645	{	1683	{
1646	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1684	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1647	return op;	1685	return op;
1648	}	1686	}
1649		1687
1650	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1688	op->remove ();
1651	CLEAR_FLAG (op, FLAG_REMOVED);	1689
		1690	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1691
1652	if (op->nrof)	1692	if (op->nrof)
1653	{
1654	for (tmp = inv; tmp != NULL; tmp = tmp->below)	1693	for (object *tmp = inv; tmp; tmp = tmp->below)
1655	if (object::can_merge (tmp, op))	1694	if (object::can_merge (tmp, op))
1656	{	1695	{
1657	/* return the original object and remove inserted object	1696	/* return the original object and remove inserted object
1658	(client needs the original object) */	1697	(client needs the original object) */
1659	tmp->nrof += op->nrof;	1698	tmp->nrof += op->nrof;
1660	/* Weight handling gets pretty funky. Since we are adding to	1699
1661	* tmp->nrof, we need to increase the weight.	1700	if (object *pl = tmp->visible_to ())
1662	*/	1701	esrv_update_item (UPD_NROF, pl, tmp);
		1702
1663	add_weight (this, op->weight * op->nrof);	1703	adjust_weight (this, op->total_weight ());
1664	SET_FLAG (op, FLAG_REMOVED);	1704
1665	op->destroy (); /* free the inserted object */	1705	op->destroy ();
1666	op = tmp;	1706	op = tmp;
1667	op->remove (); /* and fix old object's links */	1707	goto inserted;
1668	CLEAR_FLAG (op, FLAG_REMOVED);
1669	break;
1670	}	1708	}
1671		1709
1672	/* I assume combined objects have no inventory	1710	op->owner = 0; // it's his/hers now. period.
1673	* We add the weight - this object could have just been removed
1674	* (if it was possible to merge). calling remove_ob will subtract
1675	* the weight, so we need to add it in again, since we actually do
1676	* the linking below
1677	*/
1678	add_weight (this, op->weight * op->nrof);
1679	}
1680	else
1681	add_weight (this, (op->weight + op->carrying));
1682
1683	otmp = this->in_player ();
1684	if (otmp && otmp->contr)
1685	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1686	otmp->update_stats ();
1687
1688	op->map = 0;	1711	op->map = 0;
1689	op->env = this;	1712	op->x = 0;
		1713	op->y = 0;
		1714
1690	op->above = 0;	1715	op->above = 0;
1691	op->below = 0;	1716	op->below = inv;
1692	op->x = 0, op->y = 0;	1717	op->env = this;
1693		1718
		1719	if (inv)
		1720	inv->above = op;
		1721
		1722	inv = op;
		1723
		1724	op->flag [FLAG_REMOVED] = 0;
		1725
		1726	if (object *pl = op->visible_to ())
		1727	esrv_send_item (pl, op);
		1728
		1729	adjust_weight (this, op->total_weight ());
		1730
		1731	inserted:
1694	/* reset the light list and los of the players on the map */	1732	/* reset the light list and los of the players on the map */
1695	if ((op->glow_radius != 0) && map)	1733	if (op->glow_radius && is_on_map ())
1696	{	1734	{
1697	#ifdef DEBUG_LIGHTS	1735	update_stats ();
1698	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1699	#endif /* DEBUG_LIGHTS */
1700	if (MAP_DARKNESS (map))
1701	update_all_los (map, x, y);	1736	update_all_los (map, x, y);
1702	}
1703
1704	/* Client has no idea of ordering so lets not bother ordering it here.
1705	* It sure simplifies this function...
1706	*/
1707	if (!inv)
1708	inv = op;
1709	else
1710	{	1737	}
1711	op->below = inv;	1738	else if (is_player ())
1712	op->below->above = op;	1739	// if this is a player's inventory, update stats
1713	inv = op;	1740	contr->queue_stats_update ();
1714	}	1741
		1742	INVOKE_OBJECT (INSERT, this);
1715		1743
1716	return op;	1744	return op;
1717	}	1745	}
1718		1746
1719	/*	1747	/*
…		…
1734	*	1762	*
1735	* MSW 2001-07-08: Check all objects on space, not just those below	1763	* MSW 2001-07-08: Check all objects on space, not just those below
1736	* object being inserted. insert_ob_in_map may not put new objects	1764	* object being inserted. insert_ob_in_map may not put new objects
1737	* on top.	1765	* on top.
1738	*/	1766	*/
1739
1740	int	1767	int
1741	check_move_on (object *op, object *originator)	1768	check_move_on (object *op, object *originator)
1742	{	1769	{
		1770	if (QUERY_FLAG (op, FLAG_NO_APPLY))
		1771	return 0;
		1772
1743	object *tmp;	1773	object *tmp;
1744	maptile *m = op->map;	1774	maptile *m = op->map;
1745	int x = op->x, y = op->y;	1775	int x = op->x, y = op->y;
1746		1776
1747	MoveType move_on, move_slow, move_block;	1777	mapspace &ms = m->at (x, y);
1748		1778
1749	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1779	ms.update ();
1750	return 0;
1751		1780
1752	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1781	MoveType move_on = ms.move_on;
1753	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1782	MoveType move_slow = ms.move_slow;
1754	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1783	MoveType move_block = ms.move_block;
1755		1784
1756	/* if nothing on this space will slow op down or be applied,	1785	/* if nothing on this space will slow op down or be applied,
1757	* no need to do checking below. have to make sure move_type	1786	* no need to do checking below. have to make sure move_type
1758	* is set, as lots of objects don't have it set - we treat that	1787	* is set, as lots of objects don't have it set - we treat that
1759	* as walking.	1788	* as walking.
…		…
1770	return 0;	1799	return 0;
1771		1800
1772	/* The objects have to be checked from top to bottom.	1801	/* The objects have to be checked from top to bottom.
1773	* Hence, we first go to the top:	1802	* Hence, we first go to the top:
1774	*/	1803	*/
1775		1804	for (object *next, *tmp = ms.top; tmp; tmp = next)
1776	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1777	{
1778	/* Trim the search when we find the first other spell effect
1779	* this helps performance so that if a space has 50 spell objects,
1780	* we don't need to check all of them.
1781	*/
1782	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
1783	break;
1784	}	1805	{
		1806	next = tmp->below;
1785		1807
1786	for (; tmp; tmp = tmp->below)
1787	{
1788	if (tmp == op)	1808	if (tmp == op)
1789	continue; /* Can't apply yourself */	1809	continue; /* Can't apply yourself */
1790		1810
1791	/* Check to see if one of the movement types should be slowed down.	1811	/* Check to see if one of the movement types should be slowed down.
1792	* Second check makes sure that the movement types not being slowed	1812	* Second check makes sure that the movement types not being slowed
…		…
1797	if (!QUERY_FLAG (op, FLAG_WIZPASS))	1817	if (!QUERY_FLAG (op, FLAG_WIZPASS))
1798	{	1818	{
1799	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1819	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1800	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1820	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1801	{	1821	{
1802
1803	float
1804	diff = tmp->move_slow_penalty * FABS (op->speed);	1822	float diff = tmp->move_slow_penalty * fabs (op->speed);
1805		1823
1806	if (op->type == PLAYER)	1824	if (op->is_player ())
1807	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1825	if ((tmp->flag [FLAG_IS_HILLY ] && find_skill_by_number (op, SK_CLIMBING)) ||
1808	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1826	(tmp->flag [FLAG_IS_WOODED] && find_skill_by_number (op, SK_WOODSMAN)))
1809	diff /= 4.0;	1827	diff /= 4.0;
1810		1828
1811	op->speed_left -= diff;	1829	op->speed_left -= diff;
1812	}	1830	}
1813	}	1831	}
…		…
1836	/*	1854	/*
1837	* present_arch(arch, map, x, y) searches for any objects with	1855	* present_arch(arch, map, x, y) searches for any objects with
1838	* a matching archetype at the given map and coordinates.	1856	* a matching archetype at the given map and coordinates.
1839	* The first matching object is returned, or NULL if none.	1857	* The first matching object is returned, or NULL if none.
1840	*/	1858	*/
1841
1842	object *	1859	object *
1843	present_arch (const archetype *at, maptile *m, int x, int y)	1860	present_arch (const archetype *at, maptile *m, int x, int y)
1844	{	1861	{
1845	object *
1846	tmp;
1847
1848	if (m == NULL || out_of_map (m, x, y))	1862	if (!m || out_of_map (m, x, y))
1849	{	1863	{
1850	LOG (llevError, "Present_arch called outside map.\n");	1864	LOG (llevError, "Present_arch called outside map.\n");
1851	return NULL;	1865	return NULL;
1852	}	1866	}
1853	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1867
1854	if (tmp->arch == at)	1868	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1869	if (tmp->arch->archname == at->archname)
1855	return tmp;	1870	return tmp;
		1871
1856	return NULL;	1872	return NULL;
1857	}	1873	}
1858		1874
1859	/*	1875	/*
1860	* present(type, map, x, y) searches for any objects with	1876	* present(type, map, x, y) searches for any objects with
1861	* a matching type variable at the given map and coordinates.	1877	* a matching type variable at the given map and coordinates.
1862	* The first matching object is returned, or NULL if none.	1878	* The first matching object is returned, or NULL if none.
1863	*/	1879	*/
1864
1865	object *	1880	object *
1866	present (unsigned char type, maptile *m, int x, int y)	1881	present (unsigned char type, maptile *m, int x, int y)
1867	{	1882	{
1868	object *
1869	tmp;
1870
1871	if (out_of_map (m, x, y))	1883	if (out_of_map (m, x, y))
1872	{	1884	{
1873	LOG (llevError, "Present called outside map.\n");	1885	LOG (llevError, "Present called outside map.\n");
1874	return NULL;	1886	return NULL;
1875	}	1887	}
1876	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1888
		1889	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1877	if (tmp->type == type)	1890	if (tmp->type == type)
1878	return tmp;	1891	return tmp;
		1892
1879	return NULL;	1893	return NULL;
1880	}	1894	}
1881		1895
1882	/*	1896	/*
1883	* present_in_ob(type, object) searches for any objects with	1897	* present_in_ob(type, object) searches for any objects with
1884	* a matching type variable in the inventory of the given object.	1898	* a matching type variable in the inventory of the given object.
1885	* The first matching object is returned, or NULL if none.	1899	* The first matching object is returned, or NULL if none.
1886	*/	1900	*/
1887
1888	object *	1901	object *
1889	present_in_ob (unsigned char type, const object *op)	1902	present_in_ob (unsigned char type, const object *op)
1890	{	1903	{
1891	object *
1892	tmp;
1893
1894	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1904	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1895	if (tmp->type == type)	1905	if (tmp->type == type)
1896	return tmp;	1906	return tmp;
		1907
1897	return NULL;	1908	return NULL;
1898	}	1909	}
1899		1910
1900	/*	1911	/*
1901	* present_in_ob (type, str, object) searches for any objects with	1912	* present_in_ob (type, str, object) searches for any objects with
…		…
1909	* str is the string to match against. Note that we match against	1920	* str is the string to match against. Note that we match against
1910	* the object name, not the archetype name. this is so that the	1921	* the object name, not the archetype name. this is so that the
1911	* spell code can use one object type (force), but change it's name	1922	* spell code can use one object type (force), but change it's name
1912	* to be unique.	1923	* to be unique.
1913	*/	1924	*/
1914
1915	object *	1925	object *
1916	present_in_ob_by_name (int type, const char *str, const object *op)	1926	present_in_ob_by_name (int type, const char *str, const object *op)
1917	{	1927	{
1918	object *
1919	tmp;
1920
1921	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1928	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1922	{
1923	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1929	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1924	return tmp;	1930	return tmp;
1925	}	1931
1926	return NULL;	1932	return 0;
1927	}	1933	}
1928		1934
1929	/*	1935	/*
1930	* present_arch_in_ob(archetype, object) searches for any objects with	1936	* present_arch_in_ob(archetype, object) searches for any objects with
1931	* a matching archetype in the inventory of the given object.	1937	* a matching archetype in the inventory of the given object.
1932	* The first matching object is returned, or NULL if none.	1938	* The first matching object is returned, or NULL if none.
1933	*/	1939	*/
1934
1935	object *	1940	object *
1936	present_arch_in_ob (const archetype *at, const object *op)	1941	present_arch_in_ob (const archetype *at, const object *op)
1937	{	1942	{
1938	object *
1939	tmp;
1940
1941	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1943	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1942	if (tmp->arch == at)	1944	if (tmp->arch->archname == at->archname)
1943	return tmp;	1945	return tmp;
		1946
1944	return NULL;	1947	return NULL;
1945	}	1948	}
1946		1949
1947	/*	1950	/*
1948	* activate recursively a flag on an object inventory	1951	* activate recursively a flag on an object inventory
1949	*/	1952	*/
1950	void	1953	void
1951	flag_inv (object *op, int flag)	1954	flag_inv (object *op, int flag)
1952	{	1955	{
1953	object *
1954	tmp;
1955
1956	if (op->inv)
1957	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1956	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1958	{	1957	{
1959	SET_FLAG (tmp, flag);	1958	SET_FLAG (tmp, flag);
1960	flag_inv (tmp, flag);	1959	flag_inv (tmp, flag);
1961	}	1960	}
1962	} /*	1961	}
		1962
		1963	/*
1963	* desactivate recursively a flag on an object inventory	1964	* deactivate recursively a flag on an object inventory
1964	*/	1965	*/
1965	void	1966	void
1966	unflag_inv (object *op, int flag)	1967	unflag_inv (object *op, int flag)
1967	{	1968	{
1968	object *
1969	tmp;
1970
1971	if (op->inv)
1972	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1969	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1973	{	1970	{
1974	CLEAR_FLAG (tmp, flag);	1971	CLEAR_FLAG (tmp, flag);
1975	unflag_inv (tmp, flag);	1972	unflag_inv (tmp, flag);
1976	}	1973	}
1977	}
1978
1979	/*
1980	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1981	* all it's inventory (recursively).
1982	* If checksums are used, a player will get set_cheat called for
1983	* him/her-self and all object carried by a call to this function.
1984	*/
1985
1986	void
1987	set_cheat (object *op)
1988	{
1989	SET_FLAG (op, FLAG_WAS_WIZ);
1990	flag_inv (op, FLAG_WAS_WIZ);
1991	}	1974	}
1992		1975
1993	/*	1976	/*
1994	* find_free_spot(object, map, x, y, start, stop) will search for	1977	* find_free_spot(object, map, x, y, start, stop) will search for
1995	* a spot at the given map and coordinates which will be able to contain	1978	* a spot at the given map and coordinates which will be able to contain
…		…
1997	* to search (see the freearr_x/y[] definition).	1980	* to search (see the freearr_x/y[] definition).
1998	* It returns a random choice among the alternatives found.	1981	* It returns a random choice among the alternatives found.
1999	* start and stop are where to start relative to the free_arr array (1,9	1982	* start and stop are where to start relative to the free_arr array (1,9
2000	* does all 4 immediate directions). This returns the index into the	1983	* does all 4 immediate directions). This returns the index into the
2001	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1984	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2002	* Note - this only checks to see if there is space for the head of the
2003	* object - if it is a multispace object, this should be called for all
2004	* pieces.
2005	* Note2: This function does correctly handle tiled maps, but does not	1985	* Note: This function does correctly handle tiled maps, but does not
2006	* inform the caller. However, insert_ob_in_map will update as	1986	* inform the caller. However, insert_ob_in_map will update as
2007	* necessary, so the caller shouldn't need to do any special work.	1987	* necessary, so the caller shouldn't need to do any special work.
2008	* Note - updated to take an object instead of archetype - this is necessary	1988	* Note - updated to take an object instead of archetype - this is necessary
2009	* because arch_blocked (now ob_blocked) needs to know the movement type	1989	* because arch_blocked (now ob_blocked) needs to know the movement type
2010	* to know if the space in question will block the object. We can't use	1990	* to know if the space in question will block the object. We can't use
2011	* the archetype because that isn't correct if the monster has been	1991	* the archetype because that isn't correct if the monster has been
2012	* customized, changed states, etc.	1992	* customized, changed states, etc.
2013	*/	1993	*/
2014
2015	int	1994	int
2016	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	1995	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2017	{	1996	{
2018	int
2019	i,
2020	index = 0, flag;
2021	static int
2022	altern[SIZEOFFREE];	1997	int altern[SIZEOFFREE];
		1998	int index = 0, flag;
2023		1999
2024	for (i = start; i < stop; i++)	2000	for (int i = start; i < stop; i++)
2025	{	2001	{
2026	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	2002	mapxy pos (m, x, y); pos.move (i);
2027	if (!flag)	2003
		2004	if (!pos.normalise ())
		2005	continue;
		2006
		2007	mapspace &ms = *pos;
		2008
		2009	if (ms.flags () & P_IS_ALIVE)
		2010	continue;
		2011
		2012	/* However, often
		2013	* ob doesn't have any move type (when used to place exits)
		2014	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		2015	*/
		2016	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		2017	{
2028	altern[index++] = i;	2018	altern [index++] = i;
		2019	continue;
		2020	}
2029		2021
2030	/* Basically, if we find a wall on a space, we cut down the search size.	2022	/* Basically, if we find a wall on a space, we cut down the search size.
2031	* In this way, we won't return spaces that are on another side of a wall.	2023	* In this way, we won't return spaces that are on another side of a wall.
2032	* This mostly work, but it cuts down the search size in all directions -	2024	* This mostly work, but it cuts down the search size in all directions -
2033	* if the space being examined only has a wall to the north and empty	2025	* if the space being examined only has a wall to the north and empty
2034	* spaces in all the other directions, this will reduce the search space	2026	* spaces in all the other directions, this will reduce the search space
2035	* to only the spaces immediately surrounding the target area, and	2027	* to only the spaces immediately surrounding the target area, and
2036	* won't look 2 spaces south of the target space.	2028	* won't look 2 spaces south of the target space.
2037	*/	2029	*/
2038	else if ((flag & P_NO_PASS) && maxfree[i] < stop)	2030	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		2031	{
2039	stop = maxfree[i];	2032	stop = maxfree[i];
		2033	continue;
		2034	}
		2035
		2036	/* Note it is intentional that we check ob - the movement type of the
		2037	* head of the object should correspond for the entire object.
		2038	*/
		2039	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		2040	continue;
		2041
		2042	if (ob->blocked (pos.m, pos.x, pos.y))
		2043	continue;
		2044
		2045	altern [index++] = i;
2040	}	2046	}
2041		2047
2042	if (!index)	2048	if (!index)
2043	return -1;	2049	return -1;
2044		2050
2045	return altern[RANDOM () % index];	2051	return altern [rndm (index)];
2046	}	2052	}
2047		2053
2048	/*	2054	/*
2049	* find_first_free_spot(archetype, maptile, x, y) works like	2055	* find_first_free_spot(archetype, maptile, x, y) works like
2050	* find_free_spot(), but it will search max number of squares.	2056	* find_free_spot(), but it will search max number of squares.
2051	* But it will return the first available spot, not a random choice.	2057	* But it will return the first available spot, not a random choice.
2052	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2058	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2053	*/	2059	*/
2054
2055	int	2060	int
2056	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2061	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2057	{	2062	{
2058	int
2059	i;
2060
2061	for (i = 0; i < SIZEOFFREE; i++)	2063	for (int i = 0; i < SIZEOFFREE; i++)
2062	{
2063	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2064	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2064	return i;	2065	return i;
2065	}	2066
2066	return -1;	2067	return -1;
2067	}	2068	}
2068		2069
2069	/*	2070	/*
2070	* The function permute(arr, begin, end) randomly reorders the array	2071	* The function permute(arr, begin, end) randomly reorders the array
2071	* arr[begin..end-1].	2072	* arr[begin..end-1].
		2073	* now uses a fisher-yates shuffle, old permute was broken
2072	*/	2074	*/
2073	static void	2075	static void
2074	permute (int *arr, int begin, int end)	2076	permute (int *arr, int begin, int end)
2075	{	2077	{
2076	int	2078	arr += begin;
2077	i,
2078	j,
2079	tmp,
2080	len;
2081
2082	len = end - begin;	2079	end -= begin;
2083	for (i = begin; i < end; i++)
2084	{
2085	j = begin + RANDOM () % len;
2086		2080
2087	tmp = arr[i];	2081	while (--end)
2088	arr[i] = arr[j];	2082	swap (arr [end], arr [rndm (end + 1)]);
2089	arr[j] = tmp;
2090	}
2091	}	2083	}
2092		2084
2093	/* new function to make monster searching more efficient, and effective!	2085	/* new function to make monster searching more efficient, and effective!
2094	* This basically returns a randomized array (in the passed pointer) of	2086	* This basically returns a randomized array (in the passed pointer) of
2095	* the spaces to find monsters. In this way, it won't always look for	2087	* the spaces to find monsters. In this way, it won't always look for
…		…
2098	* the 3x3 area will be searched, just not in a predictable order.	2090	* the 3x3 area will be searched, just not in a predictable order.
2099	*/	2091	*/
2100	void	2092	void
2101	get_search_arr (int *search_arr)	2093	get_search_arr (int *search_arr)
2102	{	2094	{
2103	int	2095	int i;
2104	i;
2105		2096
2106	for (i = 0; i < SIZEOFFREE; i++)	2097	for (i = 0; i < SIZEOFFREE; i++)
2107	{
2108	search_arr[i] = i;	2098	search_arr[i] = i;
2109	}
2110		2099
2111	permute (search_arr, 1, SIZEOFFREE1 + 1);	2100	permute (search_arr, 1, SIZEOFFREE1 + 1);
2112	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2101	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2113	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2102	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2114	}	2103	}
…		…
2123	* Perhaps incorrectly, but I'm making the assumption that exclude	2112	* Perhaps incorrectly, but I'm making the assumption that exclude
2124	* is actually want is going to try and move there. We need this info	2113	* is actually want is going to try and move there. We need this info
2125	* because we have to know what movement the thing looking to move	2114	* because we have to know what movement the thing looking to move
2126	* there is capable of.	2115	* there is capable of.
2127	*/	2116	*/
2128
2129	int	2117	int
2130	find_dir (maptile *m, int x, int y, object *exclude)	2118	find_dir (maptile *m, int x, int y, object *exclude)
2131	{	2119	{
2132	int
2133	i,
2134	max = SIZEOFFREE, mflags;	2120	int max = SIZEOFFREE, mflags;
2135
2136	sint16 nx, ny;
2137	object *
2138	tmp;
2139	maptile *
2140	mp;
2141
2142	MoveType blocked, move_type;	2121	MoveType move_type;
2143		2122
2144	if (exclude && exclude->head)	2123	if (exclude && exclude->head_ () != exclude)
2145	{	2124	{
2146	exclude = exclude->head;	2125	exclude = exclude->head;
2147	move_type = exclude->move_type;	2126	move_type = exclude->move_type;
2148	}	2127	}
2149	else	2128	else
2150	{	2129	{
2151	/* If we don't have anything, presume it can use all movement types. */	2130	/* If we don't have anything, presume it can use all movement types. */
2152	move_type = MOVE_ALL;	2131	move_type = MOVE_ALL;
2153	}	2132	}
2154		2133
2155	for (i = 1; i < max; i++)	2134	for (int i = 1; i < max; i++)
2156	{	2135	{
2157	mp = m;	2136	mapxy pos (m, x, y);
2158	nx = x + freearr_x[i];	2137	pos.move (i);
2159	ny = y + freearr_y[i];
2160		2138
2161	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2139	if (!pos.normalise ())
2162
2163	if (mflags & P_OUT_OF_MAP)
2164	max = maxfree[i];	2140	max = maxfree[i];
2165	else	2141	else
2166	{	2142	{
2167	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2143	mapspace &ms = *pos;
2168		2144
2169	if ((move_type & blocked) == move_type)	2145	if ((move_type & ms.move_block) == move_type)
2170	max = maxfree[i];	2146	max = maxfree [i];
2171	else if (mflags & P_IS_ALIVE)	2147	else if (ms.flags () & P_IS_ALIVE)
2172	{	2148	{
2173	for (tmp = GET_MAP_OB (mp, nx, ny); tmp; tmp = tmp->above)	2149	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
2174	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2150	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2175	break;	2151	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2176
2177	if (tmp)
2178	return freedir[i];	2152	return freedir [i];
2179	}	2153	}
2180	}	2154	}
2181	}	2155	}
2182		2156
2183	return 0;	2157	return 0;
…		…
2185		2159
2186	/*	2160	/*
2187	* distance(object 1, object 2) will return the square of the	2161	* distance(object 1, object 2) will return the square of the
2188	* distance between the two given objects.	2162	* distance between the two given objects.
2189	*/	2163	*/
2190
2191	int	2164	int
2192	distance (const object *ob1, const object *ob2)	2165	distance (const object *ob1, const object *ob2)
2193	{	2166	{
2194	int i;
2195
2196	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2167	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2197	return i;
2198	}	2168	}
2199		2169
2200	/*	2170	/*
2201	* find_dir_2(delta-x,delta-y) will return a direction in which	2171	* find_dir_2(delta-x,delta-y) will return a direction in which
2202	* an object which has subtracted the x and y coordinates of another	2172	* an object which has subtracted the x and y coordinates of another
2203	* object, needs to travel toward it.	2173	* object, needs to travel toward it.
2204	*/	2174	*/
2205
2206	int	2175	int
2207	find_dir_2 (int x, int y)	2176	find_dir_2 (int x, int y)
2208	{	2177	{
2209	int q;	2178	int q;
2210		2179
…		…
2239		2208
2240	return 3;	2209	return 3;
2241	}	2210	}
2242		2211
2243	/*	2212	/*
2244	* absdir(int): Returns a number between 1 and 8, which represent
2245	* the "absolute" direction of a number (it actually takes care of
2246	* "overflow" in previous calculations of a direction).
2247	*/
2248
2249	int
2250	absdir (int d)
2251	{
2252	while (d < 1)
2253	d += 8;
2254	while (d > 8)
2255	d -= 8;
2256	return d;
2257	}
2258
2259	/*
2260	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2213	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2261	* between two directions (which are expected to be absolute (see absdir())	2214	* between two directions (which are expected to be absolute (see absdir())
2262	*/	2215	*/
2263
2264	int	2216	int
2265	dirdiff (int dir1, int dir2)	2217	dirdiff (int dir1, int dir2)
2266	{	2218	{
2267	int	2219	int d;
2268	d;
2269		2220
2270	d = abs (dir1 - dir2);	2221	d = abs (dir1 - dir2);
2271	if (d > 4)	2222	if (d > 4)
2272	d = 8 - d;	2223	d = 8 - d;
		2224
2273	return d;	2225	return d;
2274	}	2226	}
2275		2227
2276	/* peterm:	2228	/* peterm:
2277	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2229	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2280	* This basically means that if direction is 15, then it could either go	2232	* This basically means that if direction is 15, then it could either go
2281	* direction 4, 14, or 16 to get back to where we are.	2233	* direction 4, 14, or 16 to get back to where we are.
2282	* Moved from spell_util.c to object.c with the other related direction	2234	* Moved from spell_util.c to object.c with the other related direction
2283	* functions.	2235	* functions.
2284	*/	2236	*/
2285
2286	int
2287	reduction_dir[SIZEOFFREE][3] = {	2237	static const int reduction_dir[SIZEOFFREE][3] = {
2288	{0, 0, 0}, /* 0 */	2238	{0, 0, 0}, /* 0 */
2289	{0, 0, 0}, /* 1 */	2239	{0, 0, 0}, /* 1 */
2290	{0, 0, 0}, /* 2 */	2240	{0, 0, 0}, /* 2 */
2291	{0, 0, 0}, /* 3 */	2241	{0, 0, 0}, /* 3 */
2292	{0, 0, 0}, /* 4 */	2242	{0, 0, 0}, /* 4 */
…		…
2383	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2333	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2384	* core dumps if they do.	2334	* core dumps if they do.
2385	*	2335	*
2386	* Add a check so we can't pick up invisible objects (0.93.8)	2336	* Add a check so we can't pick up invisible objects (0.93.8)
2387	*/	2337	*/
2388
2389	int	2338	int
2390	can_pick (const object *who, const object *item)	2339	can_pick (const object *who, const object *item)
2391	{	2340	{
2392	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2341	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2393	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2342	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2394	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2343	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2395	}	2344	}
2396		2345
2397	/*	2346	/*
2398	* create clone from object to another	2347	* create clone from object to another
2399	*/	2348	*/
2400	object *	2349	object *
2401	object_create_clone (object *asrc)	2350	object::deep_clone ()
2402	{	2351	{
2403	object *dst = 0, *tmp, *src, *part, *prev, *item;	2352	assert (("deep_clone called on non-head object", is_head ()));
2404		2353
2405	if (!asrc)	2354	object *dst = clone ();
2406	return 0;
2407		2355
2408	src = asrc;	2356	object *prev = dst;
2409	if (src->head)
2410	src = src->head;
2411
2412	prev = 0;
2413	for (part = src; part; part = part->more)	2357	for (object *part = this->more; part; part = part->more)
2414	{	2358	{
2415	tmp = part->clone ();	2359	object *tmp = part->clone ();
2416	tmp->x -= src->x;
2417	tmp->y -= src->y;
2418
2419	if (!part->head)
2420	{
2421	dst = tmp;
2422	tmp->head = 0;
2423	}
2424	else
2425	tmp->head = dst;	2360	tmp->head = dst;
2426
2427	tmp->more = 0;
2428
2429	if (prev)
2430	prev->more = tmp;	2361	prev->more = tmp;
2431
2432	prev = tmp;	2362	prev = tmp;
2433	}	2363	}
2434		2364
2435	for (item = src->inv; item; item = item->below)	2365	for (object *item = inv; item; item = item->below)
2436	insert_ob_in_ob (object_create_clone (item), dst);	2366	insert_ob_in_ob (item->deep_clone (), dst);
2437		2367
2438	return dst;	2368	return dst;
2439	}
2440
2441	/* GROS - Creates an object using a string representing its content. */
2442	/* Basically, we save the content of the string to a temp file, then call */
2443	/* load_object on it. I admit it is a highly inefficient way to make things, */
2444	/* but it was simple to make and allows reusing the load_object function. */
2445	/* Remember not to use load_object_str in a time-critical situation. */
2446	/* Also remember that multiparts objects are not supported for now. */
2447
2448	object *
2449	load_object_str (const char *obstr)
2450	{
2451	object *op;
2452	char filename[MAX_BUF];
2453
2454	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2455
2456	FILE *tempfile = fopen (filename, "w");
2457
2458	if (tempfile == NULL)
2459	{
2460	LOG (llevError, "Error - Unable to access load object temp file\n");
2461	return NULL;
2462	}
2463
2464	fprintf (tempfile, obstr);
2465	fclose (tempfile);
2466
2467	op = object::create ();
2468
2469	object_thawer thawer (filename);
2470
2471	if (thawer)
2472	load_object (thawer, op, 0);
2473
2474	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2475	CLEAR_FLAG (op, FLAG_REMOVED);
2476
2477	return op;
2478	}	2369	}
2479		2370
2480	/* This returns the first object in who's inventory that	2371	/* This returns the first object in who's inventory that
2481	* has the same type and subtype match.	2372	* has the same type and subtype match.
2482	* returns NULL if no match.	2373	* returns NULL if no match.
2483	*/	2374	*/
2484	object *	2375	object *
2485	find_obj_by_type_subtype (const object *who, int type, int subtype)	2376	find_obj_by_type_subtype (const object *who, int type, int subtype)
2486	{	2377	{
2487	object *tmp;
2488
2489	for (tmp = who->inv; tmp; tmp = tmp->below)	2378	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2490	if (tmp->type == type && tmp->subtype == subtype)	2379	if (tmp->type == type && tmp->subtype == subtype)
2491	return tmp;	2380	return tmp;
2492		2381
2493	return NULL;
2494	}
2495
2496	/* If ob has a field named key, return the link from the list,
2497	* otherwise return NULL.
2498	*
2499	* key must be a passed in shared string - otherwise, this won't
2500	* do the desired thing.
2501	*/
2502	key_value *
2503	get_ob_key_link (const object *ob, const char *key)
2504	{
2505	key_value *link;
2506
2507	for (link = ob->key_values; link != NULL; link = link->next)
2508	if (link->key == key)
2509	return link;
2510
2511	return NULL;
2512	}
2513
2514	/*
2515	* Returns the value of op has an extra_field for key, or NULL.
2516	*
2517	* The argument doesn't need to be a shared string.
2518	*
2519	* The returned string is shared.
2520	*/
2521	const char *
2522	get_ob_key_value (const object *op, const char *const key)
2523	{
2524	key_value *link;
2525	shstr_cmp canonical_key (key);
2526
2527	if (!canonical_key)
2528	{
2529	/* 1. There being a field named key on any object
2530	* implies there'd be a shared string to find.
2531	* 2. Since there isn't, no object has this field.
2532	* 3. Therefore, *this* object doesn't have this field.
2533	*/
2534	return 0;
2535	}
2536
2537	/* This is copied from get_ob_key_link() above -
2538	* only 4 lines, and saves the function call overhead.
2539	*/
2540	for (link = op->key_values; link; link = link->next)
2541	if (link->key == canonical_key)
2542	return link->value;
2543
2544	return 0;	2382	return 0;
2545	}	2383	}
2546		2384
2547		2385	shstr_tmp
2548	/*	2386	object::kv_get (shstr_tmp key) const
2549	* Updates the canonical_key in op to value.
2550	*
2551	* canonical_key is a shared string (value doesn't have to be).
2552	*
2553	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2554	* keys.
2555	*
2556	* Returns TRUE on success.
2557	*/
2558	int
2559	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2560	{	2387	{
2561	key_value *	2388	for (key_value *kv = key_values; kv; kv = kv->next)
2562	field = NULL, *last = NULL;	2389	if (kv->key == key)
		2390	return kv->value;
2563		2391
2564	for (field = op->key_values; field != NULL; field = field->next)	2392	return shstr ();
2565	{	2393	}
2566	if (field->key != canonical_key)	2394
		2395	void
		2396	object::kv_set (shstr_tmp key, shstr_tmp value)
		2397	{
		2398	for (key_value *kv = key_values; kv; kv = kv->next)
		2399	if (kv->key == key)
2567	{	2400	{
2568	last = field;	2401	kv->value = value;
2569	continue;	2402	return;
2570	}	2403	}
2571		2404
2572	if (value)	2405	key_value *kv = new key_value;
2573	field->value = value;	2406
2574	else	2407	kv->next = key_values;
		2408	kv->key = key;
		2409	kv->value = value;
		2410
		2411	key_values = kv;
		2412	}
		2413
		2414	void
		2415	object::kv_del (shstr_tmp key)
		2416	{
		2417	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2418	if ((*kvp)->key == key)
2575	{	2419	{
2576	/* Basically, if the archetype has this key set,	2420	key_value *kv = *kvp;
2577	* we need to store the null value so when we save	2421	*kvp = (*kvp)->next;
2578	* it, we save the empty value so that when we load,	2422	delete kv;
2579	* we get this value back again.	2423	return;
2580	*/
2581	if (get_ob_key_link (&op->arch->clone, canonical_key))
2582	field->value = 0;
2583	else
2584	{
2585	if (last)
2586	last->next = field->next;
2587	else
2588	op->key_values = field->next;
2589
2590	delete field;
2591	}
2592	}	2424	}
2593	return TRUE;
2594	}
2595	/* IF we get here, key doesn't exist */
2596
2597	/* No field, we'll have to add it. */
2598
2599	if (!add_key)
2600	{
2601	return FALSE;
2602	}
2603	/* There isn't any good reason to store a null
2604	* value in the key/value list. If the archetype has
2605	* this key, then we should also have it, so shouldn't
2606	* be here. If user wants to store empty strings,
2607	* should pass in ""
2608	*/
2609	if (value == NULL)
2610	return TRUE;
2611
2612	field = new key_value;
2613
2614	field->key = canonical_key;
2615	field->value = value;
2616	/* Usual prepend-addition. */
2617	field->next = op->key_values;
2618	op->key_values = field;
2619
2620	return TRUE;
2621	}
2622
2623	/*
2624	* Updates the key in op to value.
2625	*
2626	* If add_key is FALSE, this will only update existing keys,
2627	* and not add new ones.
2628	* In general, should be little reason FALSE is ever passed in for add_key
2629	*
2630	* Returns TRUE on success.
2631	*/
2632	int
2633	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2634	{
2635	shstr key_ (key);
2636
2637	return set_ob_key_value_s (op, key_, value, add_key);
2638	}	2425	}
2639		2426
2640	object::depth_iterator::depth_iterator (object *container)	2427	object::depth_iterator::depth_iterator (object *container)
2641	: iterator_base (container)	2428	: iterator_base (container)
2642	{	2429	{
…		…
2656	}	2443	}
2657	else	2444	else
2658	item = item->env;	2445	item = item->env;
2659	}	2446	}
2660		2447
		2448	const char *
		2449	object::flag_desc (char *desc, int len) const
		2450	{
		2451	char *p = desc;
		2452	bool first = true;
		2453
		2454	*p = 0;
		2455
		2456	for (int i = 0; i < NUM_FLAGS; i++)
		2457	{
		2458	if (len <= 10) // magic constant!
		2459	{
		2460	snprintf (p, len, ",...");
		2461	break;
		2462	}
		2463
		2464	if (flag [i])
		2465	{
		2466	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2467	len -= cnt;
		2468	p += cnt;
		2469	first = false;
		2470	}
		2471	}
		2472
		2473	return desc;
		2474	}
		2475
2661	// return a suitable string describing an objetc in enough detail to find it	2476	// return a suitable string describing an object in enough detail to find it
2662	const char *	2477	const char *
2663	object::debug_desc (char *info) const	2478	object::debug_desc (char *info) const
2664	{	2479	{
		2480	char flagdesc[512];
2665	char info2[256 * 3];	2481	char info2[256 * 4];
2666	char *p = info;	2482	char *p = info;
2667		2483
2668	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2484	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2669	count,	2485	count,
		2486	uuid.c_str (),
2670	&name,	2487	&name,
2671	title ? " " : "",	2488	title ? ",title:\"" : "",
2672	title ? (const char *)title : "");	2489	title ? (const char *)title : "",
		2490	title ? "\"" : "",
		2491	flag_desc (flagdesc, 512), type);
2673		2492
2674	if (env)	2493	if (!flag[FLAG_REMOVED] && env)
2675	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2494	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2676		2495
2677	if (map)	2496	if (map)
2678	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2497	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2679		2498
2680	return info;	2499	return info;
2681	}	2500	}
2682		2501
2683	const char *	2502	const char *
2684	object::debug_desc () const	2503	object::debug_desc () const
2685	{	2504	{
2686	static char info[256 * 3];	2505	static char info[3][256 * 4];
		2506	static int info_idx;
		2507
2687	return debug_desc (info);	2508	return debug_desc (info [++info_idx % 3]);
2688	}	2509	}
2689		2510
		2511	struct region *
		2512	object::region () const
		2513	{
		2514	return map ? map->region (x, y)
		2515	: region::default_region ();
		2516	}
		2517
		2518	void
		2519	object::open_container (object *new_container)
		2520	{
		2521	if (container == new_container)
		2522	return;
		2523
		2524	object *old_container = container;
		2525
		2526	if (old_container)
		2527	{
		2528	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2529	return;
		2530
		2531	#if 0
		2532	// remove the "Close old_container" object.
		2533	if (object *closer = old_container->inv)
		2534	if (closer->type == CLOSE_CON)
		2535	closer->destroy ();
		2536	#endif
		2537
		2538	// make sure the container is available
		2539	esrv_send_item (this, old_container);
		2540
		2541	old_container->flag [FLAG_APPLIED] = false;
		2542	container = 0;
		2543
		2544	// client needs item update to make it work, client bug requires this to be separate
		2545	esrv_update_item (UPD_FLAGS, this, old_container);
		2546
		2547	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", old_container->query_name ());
		2548	play_sound (sound_find ("chest_close"));
		2549	}
		2550
		2551	if (new_container)
		2552	{
		2553	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2554	return;
		2555
		2556	// TODO: this does not seem to serve any purpose anymore?
		2557	#if 0
		2558	// insert the "Close Container" object.
		2559	if (archetype *closer = new_container->other_arch)
		2560	{
		2561	object *closer = arch_to_object (new_container->other_arch);
		2562	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2563	new_container->insert (closer);
		2564	}
		2565	#endif
		2566
		2567	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", new_container->query_name ());
		2568
		2569	// make sure the container is available, client bug requires this to be separate
		2570	esrv_send_item (this, new_container);
		2571
		2572	new_container->flag [FLAG_APPLIED] = true;
		2573	container = new_container;
		2574
		2575	// client needs flag change
		2576	esrv_update_item (UPD_FLAGS, this, new_container);
		2577	esrv_send_inventory (this, new_container);
		2578	play_sound (sound_find ("chest_open"));
		2579	}
		2580	// else if (!old_container->env && contr && contr->ns)
		2581	// contr->ns->floorbox_reset ();
		2582	}
		2583
		2584	object *
		2585	object::force_find (shstr_tmp name)
		2586	{
		2587	/* cycle through his inventory to look for the MARK we want to
		2588	* place
		2589	*/
		2590	for (object *tmp = inv; tmp; tmp = tmp->below)
		2591	if (tmp->type == FORCE && tmp->slaying == name)
		2592	return splay (tmp);
		2593
		2594	return 0;
		2595	}
		2596
		2597	//-GPL
		2598
		2599	void
		2600	object::force_set_timer (int duration)
		2601	{
		2602	this->duration = 1;
		2603	this->speed_left = -1.f;
		2604
		2605	this->set_speed (duration ? 1.f / duration : 0.f);
		2606	}
		2607
		2608	object *
		2609	object::force_add (shstr_tmp name, int duration)
		2610	{
		2611	if (object *force = force_find (name))
		2612	force->destroy ();
		2613
		2614	object *force = get_archetype (FORCE_NAME);
		2615
		2616	force->slaying = name;
		2617	force->force_set_timer (duration);
		2618	force->flag [FLAG_APPLIED] = true;
		2619
		2620	return insert (force);
		2621	}
		2622
		2623	void
		2624	object::play_sound (faceidx sound) const
		2625	{
		2626	if (!sound)
		2627	return;
		2628
		2629	if (is_on_map ())
		2630	map->play_sound (sound, x, y);
		2631	else if (object *pl = in_player ())
		2632	pl->contr->play_sound (sound);
		2633	}
		2634
		2635	void
		2636	object::say_msg (const char *msg) const
		2637	{
		2638	if (is_on_map ())
		2639	map->say_msg (msg, x, y);
		2640	else if (object *pl = in_player ())
		2641	pl->contr->play_sound (sound);
		2642	}
		2643
		2644	void
		2645	object::make_noise ()
		2646	{
		2647	// we do not model noise in the map, so instead put
		2648	// a temporary light into the noise source
		2649	// could use the map instead, but that's less reliable for our
		2650	// goal, which is to make invisibility a bit harder to exploit
		2651
		2652	// currently only works sensibly for players
		2653	if (!is_player ())
		2654	return;
		2655
		2656	// find old force, or create new one
		2657	object *force = force_find (shstr_noise_force);
		2658
		2659	if (force)
		2660	force->speed_left = -1.f; // patch old speed up
		2661	else
		2662	{
		2663	force = archetype::get (shstr_noise_force);
		2664
		2665	force->slaying = shstr_noise_force;
		2666	force->stats.food = 1;
		2667	force->speed_left = -1.f;
		2668
		2669	force->set_speed (1.f / 4.f);
		2670	force->flag [FLAG_IS_USED_UP] = true;
		2671	force->flag [FLAG_APPLIED] = true;
		2672
		2673	insert (force);
		2674	}
		2675	}
		2676

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