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Comparing deliantra/server/common/object.C (file contents):
Revision 1.51 by root, Sun Sep 17 16:21:53 2006 UTC vs.
Revision 1.318 by root, Sat Apr 3 02:27:24 2010 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify it under
8	it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
9	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
10	(at your option) any later version.	11	* option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the Affero GNU General Public License
18	along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
20		21	*
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	23	*/
23		24
24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
25	sub/add_weight will transcend the environment updating the carrying
26	variable. */
27	#include <global.h>	25	#include <global.h>
28	#include <stdio.h>	26	#include <stdio.h>
29	#include <sys/types.h>	27	#include <sys/types.h>
30	#include <sys/uio.h>	28	#include <sys/uio.h>
31	#include <object.h>	29	#include <object.h>
32	#include <funcpoint.h>	30	#include <sproto.h>
33	#include <loader.h>
34		31
35	int nrofallocobjects = 0;	32	#include <bitset>
36	static UUID uuid;	33
		34	UUID UUID::cur;
		35	static uint64_t seq_next_save;
37	const uint64 UUID_SKIP = 1<<19;	36	static const uint64 UUID_GAP = 1<<19;
		37	uint32_t mapspace::smellcount = 10000;
38		38
39	object *active_objects; /* List of active objects that need to be processed */	39	objectvec objects;
		40	activevec actives;
40		41
41	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,	42	//+GPL
		43
		44	short freearr_x[SIZEOFFREE] = {
		45	0,
		46	0, 1, 1, 1, 0, -1, -1, -1,
		47	0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
42	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1	48	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
43	};	49	};
44	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,	50	short freearr_y[SIZEOFFREE] = {
		51	0,
		52	-1, -1, 0, 1, 1, 1, 0, -1,
		53	-2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
45	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3	54	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
46	};
47	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
48	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
49	};	55	};
50	int freedir[SIZEOFFREE] = {	56	int freedir[SIZEOFFREE] = {
51	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,	57	0,
		58	1, 2, 3, 4, 5, 6, 7, 8,
		59	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
52	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8	60	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
53	};	61	};
54		62
		63	static int maxfree[SIZEOFFREE] = {
		64	0,
		65	9, 10, 13, 14, 17, 18, 21, 22,
		66	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
		67	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		68	};
		69
55	static void	70	static void
56	write_uuid (void)	71	write_uuid (uval64 skip, bool sync)
57	{	72	{
58	char filename1[MAX_BUF], filename2[MAX_BUF];	73	CALL_BEGIN (2);
59		74	CALL_ARG_SV (newSVval64 (skip));
60	sprintf (filename1, "%s/uuid", settings.localdir);	75	CALL_ARG_SV (boolSV (sync));
61	sprintf (filename2, "%s/uuid~", settings.localdir);	76	CALL_CALL ("cf::write_uuid", G_DISCARD);
62		77	CALL_END;
63	FILE *fp;
64
65	if (!(fp = fopen (filename2, "w")))
66	{
67	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
68	return;
69	}
70
71	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
72	fclose (fp);
73	rename (filename2, filename1);
74	}	78	}
75		79
76	static void	80	static void
77	read_uuid (void)	81	read_uuid ()
78	{	82	{
79	char filename[MAX_BUF];	83	char filename[MAX_BUF];
80		84
81	sprintf (filename, "%s/uuid", settings.localdir);	85	sprintf (filename, "%s/uuid", settings.localdir);
		86
		87	seq_next_save = 0;
82		88
83	FILE *fp;	89	FILE *fp;
84		90
85	if (!(fp = fopen (filename, "r")))	91	if (!(fp = fopen (filename, "r")))
86	{	92	{
87	if (errno == ENOENT)	93	if (errno == ENOENT)
88	{	94	{
89	LOG (llevInfo, "RESET uid to 1\n");	95	LOG (llevInfo, "RESET uid to 1\n");
90	uuid.seq = 0;	96	UUID::cur.seq = 0;
91	write_uuid ();	97	write_uuid (UUID_GAP, true);
92	return;	98	return;
93	}	99	}
94		100
95	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	101	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
96	_exit (1);	102	_exit (1);
97	}	103	}
98		104
99	int version;	105	char buf [UUID::MAX_LEN];
100	unsigned long long uid;	106	buf[0] = 0;
101	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	107	fgets (buf, sizeof (buf), fp);
		108
		109	if (!UUID::cur.parse (buf))
102	{	110	{
103	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	111	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
104	_exit (1);	112	_exit (1);
105	}	113	}
106		114
107	uuid.seq = uid;
108	write_uuid ();
109	LOG (llevDebug, "read UID: %lld\n", uid);	115	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
		116
		117	write_uuid (UUID_GAP, true);
110	fclose (fp);	118	fclose (fp);
111	}	119	}
112		120
113	UUID	121	UUID
114	gen_uuid ()	122	UUID::gen ()
115	{	123	{
116	UUID uid;	124	UUID uid;
117		125
118	uid.seq = ++uuid.seq;	126	uid.seq = ++cur.seq;
119		127
120	if (!(uuid.seq & (UUID_SKIP - 1)))	128	if (expect_false (cur.seq >= seq_next_save))
121	write_uuid ();	129	{
		130	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		131	write_uuid (UUID_GAP, false);
		132	}
		133
122		134
123	return uid;	135	return uid;
124	}	136	}
125		137
126	void	138	void
127	init_uuid ()	139	UUID::init ()
128	{	140	{
129	read_uuid ();	141	read_uuid ();
130	}	142	}
131		143
		144	bool
		145	UUID::parse (const char *s)
		146	{
		147	if (*s++ != '<' || *s++ != '1' || *s++ != '.')
		148	return false;
		149
		150	seq = 0;
		151
		152	while (*s != '>')
		153	{
		154	if (*s < '0')
		155	return false;
		156
		157	// this gives nice branchless code with gcc
		158	assert ('0' < 'a' && '0' == 48 && 'a' == 97);
		159	int digit = (*s + (*s & 0x40 ? 9 : 0)) & 15;
		160
		161	seq = (seq << 4) | digit;
		162
		163	++s;
		164	}
		165
		166	return true;
		167	}
		168
		169	char *
		170	UUID::append (char *buf) const
		171	{
		172	*buf++ = '<';
		173	*buf++ = '1';
		174	*buf++ = '.';
		175
		176	uint64_t seq = this->seq;
		177	const int bits = 64;
		178	char nz = 0;
		179	static const char tohex [] = "0123456789abcdef";
		180
		181	// assert (len >= 3 + bits / 4 + 1 + 1);
		182	for (int i = bits / 4; --i; )
		183	{
		184	uint8_t digit = seq >> (bits - 4);
		185
		186	*buf = tohex [digit];
		187	nz |= digit;
		188	buf += nz ? 1 : 0;
		189	seq <<= 4;
		190	}
		191
		192	// last digit is special - always emit
		193	uint8_t digit = seq >> (bits - 4);
		194	*buf++ = tohex [digit];
		195
		196	*buf++ = '>';
		197
		198	return buf;
		199	}
		200
		201	char *
		202	UUID::c_str () const
		203	{
		204	static char buf [MAX_LEN];
		205	*append (buf) = 0;
		206	return buf;
		207	}
		208
132	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	209	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
133	static int	210	static bool
134	compare_ob_value_lists_one (const object *wants, const object *has)	211	compare_ob_value_lists_one (const object *wants, const object *has)
135	{	212	{
136	key_value *wants_field;
137
138	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	213	/* n-squared behaviour (see kv_get), but I'm hoping both
139	* objects with lists are rare, and lists stay short. If not, use a	214	* objects with lists are rare, and lists stay short. If not, use a
140	* different structure or at least keep the lists sorted...	215	* different structure or at least keep the lists sorted...
141	*/	216	*/
142		217
143	/* For each field in wants, */	218	/* For each field in wants, */
144	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	219	for (key_value *kv = wants->key_values; kv; kv = kv->next)
145	{	220	if (has->kv_get (kv->key) != kv->value)
146	key_value *has_field;	221	return false;
147
148	/* Look for a field in has with the same key. */
149	has_field = get_ob_key_link (has, wants_field->key);
150
151	if (has_field == NULL)
152	{
153	/* No field with that name. */
154	return FALSE;
155	}
156
157	/* Found the matching field. */
158	if (has_field->value != wants_field->value)
159	{
160	/* Values don't match, so this half of the comparison is false. */
161	return FALSE;
162	}
163
164	/* If we get here, we found a match. Now for the next field in wants. */
165	}
166		222
167	/* If we get here, every field in wants has a matching field in has. */	223	/* If we get here, every field in wants has a matching field in has. */
168	return TRUE;	224	return true;
169	}	225	}
170		226
171	/* Returns TRUE if ob1 has the same key_values as ob2. */	227	/* Returns TRUE if ob1 has the same key_values as ob2. */
172	static int	228	static bool
173	compare_ob_value_lists (const object *ob1, const object *ob2)	229	compare_ob_value_lists (const object *ob1, const object *ob2)
174	{	230	{
175	/* However, there may be fields in has which aren't partnered in wants,	231	/* However, there may be fields in has which aren't partnered in wants,
176	* so we need to run the comparison *twice*. :(	232	* so we need to run the comparison *twice*. :(
177	*/	233	*/
178	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);	234	return compare_ob_value_lists_one (ob1, ob2)
		235	&& compare_ob_value_lists_one (ob2, ob1);
179	}	236	}
180		237
181	/* Function examines the 2 objects given to it, and returns true if	238	/* Function examines the 2 objects given to it, and returns true if
182	* they can be merged together.	239	* they can be merged together.
183	*	240	*
184	* Note that this function appears a lot longer than the macro it	241	* Note that this function appears a lot longer than the macro it
185	* replaces - this is mostly for clarity - a decent compiler should hopefully	242	* replaces - this is mostly for clarity - a decent compiler should hopefully
186	* reduce this to the same efficiency.	243	* reduce this to the same efficiency.
187	*	244	*
188	* Check nrof variable *before* calling CAN_MERGE()	245	* Check nrof variable *before* calling can_merge()
189	*	246	*
190	* Improvements made with merge: Better checking on potion, and also	247	* Improvements made with merge: Better checking on potion, and also
191	* check weight	248	* check weight
192	*/	249	*/
193
194	bool object::can_merge (object *ob1, object *ob2)	250	bool object::can_merge_slow (object *ob1, object *ob2)
195	{	251	{
196	/* A couple quicksanity checks */	252	/* A couple quick sanity checks */
197	if ((ob1 == ob2) || (ob1->type != ob2->type))	253	if (ob1 == ob2
		254	|| ob1->type != ob2->type
		255	|| ob1->value != ob2->value
		256	|| ob1->name != ob2->name
		257	|| fabs (ob1->speed - ob2->speed) >= MIN_ACTIVE_SPEED)
198	return 0;	258	return 0;
199		259
200	if (ob1->speed != ob2->speed)	260	/* Do not merge objects if nrof would overflow, assume nrof
		261	* is always 0 .. 2**31-1 */
		262	if (ob1->nrof > 0x7fffffff - ob2->nrof)
201	return 0;	263	return 0;
202		264
203	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
204	* value could not be stored in a sint32 (which unfortunately sometimes is
205	* used to store nrof).
206	*/
207	if (ob1->nrof + ob2->nrof >= 1UL << 31)
208	return 0;
209
210	/* If the objects have been identified, set the BEEN_APPLIED flag.	265	/* If the objects have been identified, set the BEEN_APPLIED flag.
211	* This is to the comparison of the flags below will be OK. We	266	* This is to the comparison of the flags below will be OK. We
212	* just can't ignore the been applied or identified flags, as they	267	* just can't ignore the been applied or identified flags, as they
213	* are not equal - just if it has been identified, the been_applied	268	* are not equal - just if it has been identified, the been_applied
214	* flags lose any meaning.	269	* flags lose any meaning.
215	*/	270	*/
216	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	271	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
217	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	272	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
218		273
219	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	274	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
220	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	275	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
221		276
222		277	if (ob1->arch->archname != ob2->arch->archname
223	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
224	* being locked in inventory should prevent merging.
225	* 0x4 in flags3 is CLIENT_SENT
226	*/
227	if ((ob1->arch != ob2->arch) ||
228	(ob1->flags[0] != ob2->flags[0]) ||
229	(ob1->flags[1] != ob2->flags[1]) ||
230	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
231	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
232	(ob1->name != ob2->name) ||	278	|| ob1->name != ob2->name
233	(ob1->title != ob2->title) ||	279	|| ob1->title != ob2->title
234	(ob1->msg != ob2->msg) ||	280	|| ob1->msg != ob2->msg
235	(ob1->weight != ob2->weight) ||	281	|| ob1->weight != ob2->weight
236	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
237	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
238	(ob1->attacktype != ob2->attacktype) ||	282	|| ob1->attacktype != ob2->attacktype
239	(ob1->magic != ob2->magic) ||	283	|| ob1->magic != ob2->magic
240	(ob1->slaying != ob2->slaying) ||	284	|| ob1->slaying != ob2->slaying
241	(ob1->skill != ob2->skill) ||	285	|| ob1->skill != ob2->skill
242	(ob1->value != ob2->value) ||	286	|| ob1->value != ob2->value
243	(ob1->animation_id != ob2->animation_id) ||	287	|| ob1->animation_id != ob2->animation_id
		288	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependend on each other
244	(ob1->client_type != ob2->client_type) ||	289	|| ob1->client_type != ob2->client_type
245	(ob1->materialname != ob2->materialname) ||	290	|| ob1->material != ob2->material
246	(ob1->lore != ob2->lore) ||	291	|| ob1->lore != ob2->lore
247	(ob1->subtype != ob2->subtype) ||	292	|| ob1->subtype != ob2->subtype
248	(ob1->move_type != ob2->move_type) ||	293	|| ob1->move_type != ob2->move_type
249	(ob1->move_block != ob2->move_block) ||	294	|| ob1->move_block != ob2->move_block
250	(ob1->move_allow != ob2->move_allow) ||	295	|| ob1->move_allow != ob2->move_allow
251	(ob1->move_on != ob2->move_on) ||	296	|| ob1->move_on != ob2->move_on
252	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))	297	|| ob1->move_off != ob2->move_off
		298	|| ob1->move_slow != ob2->move_slow
		299	|| fabs (ob1->move_slow_penalty - ob2->move_slow_penalty) >= (1.f / 1024.f)
		300	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		301	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
253	return 0;	302	return 0;
254		303
		304	if ((ob1->flag ^ ob2->flag)
		305	.reset (FLAG_INV_LOCKED)
		306	.reset (FLAG_REMOVED)
		307	.any ())
		308	return 0;
		309
255	/* This is really a spellbook check - really, we should	310	/* This is really a spellbook check - we should in general
256	* check all objects in the inventory.	311	* not merge objects with real inventories, as splitting them
		312	* is hard.
257	*/	313	*/
258	if (ob1->inv || ob2->inv)	314	if (ob1->inv || ob2->inv)
259	{	315	{
260	/* if one object has inventory but the other doesn't, not equiv */
261	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
262	return 0;
263
264	/* Now check to see if the two inventory objects could merge */
265	if (!CAN_MERGE (ob1->inv, ob2->inv))	316	if (!(ob1->inv && ob2->inv))
266	return 0;	317	return 0; /* inventories differ in length */
		318
		319	if (ob1->inv->below || ob2->inv->below)
		320	return 0; /* more than one object in inv */
		321
		322	if (!object::can_merge (ob1->inv, ob2->inv))
		323	return 0; /* inventory objects differ */
267		324
268	/* inventory ok - still need to check rest of this object to see	325	/* inventory ok - still need to check rest of this object to see
269	* if it is valid.	326	* if it is valid.
270	*/	327	*/
271	}	328	}
…		…
279		336
280	/* Note sure why the following is the case - either the object has to	337	/* Note sure why the following is the case - either the object has to
281	* be animated or have a very low speed. Is this an attempted monster	338	* be animated or have a very low speed. Is this an attempted monster
282	* check?	339	* check?
283	*/	340	*/
284	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	341	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
285	return 0;	342	return 0;
286		343
287	switch (ob1->type)	344	switch (ob1->type)
288	{	345	{
289	case SCROLL:	346	case SCROLL:
290	if (ob1->level != ob2->level)	347	if (ob1->level != ob2->level)
291	return 0;	348	return 0;
292	break;	349	break;
293	}	350	}
294		351
295	if (ob1->key_values != NULL || ob2->key_values != NULL)	352	if (ob1->key_values || ob2->key_values)
296	{	353	{
297	/* At least one of these has key_values. */	354	/* At least one of these has key_values. */
298	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	355	if ((!ob1->key_values) != (!ob2->key_values))
299	/* One has fields, but the other one doesn't. */	356	return 0; /* One has fields, but the other one doesn't. */
		357
		358	if (!compare_ob_value_lists (ob1, ob2))
300	return 0;	359	return 0;
301	else if (!compare_ob_value_lists (ob1, ob2))
302	return 0;
303	}	360	}
304		361
305	//TODO: generate an event or call into perl for additional checks
306	if (ob1->self || ob2->self)	362	if (ob1->self || ob2->self)
307	{	363	{
308	ob1->optimise ();	364	ob1->optimise ();
309	ob2->optimise ();	365	ob2->optimise ();
310		366
311	if (ob1->self || ob2->self)	367	if (ob1->self || ob2->self)
		368	{
		369	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		370	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		371
		372	if (k1 != k2)
312	return 0;	373	return 0;
		374
		375	if (k1 == 0)
		376	return 1;
		377
		378	if (!cfperl_can_merge (ob1, ob2))
		379	return 0;
		380	}
313	}	381	}
314		382
315	/* Everything passes, must be OK. */	383	/* Everything passes, must be OK. */
316	return 1;	384	return 1;
317	}	385	}
318		386
		387	// find player who can see this object
		388	object *
		389	object::visible_to () const
		390	{
		391	if (client_visible () && !flag [FLAG_REMOVED])
		392	{
		393	// see if we are in a container of sorts
		394	if (env)
		395	{
		396	// the player inventory itself is always visible
		397	if (env->is_player ())
		398	return env;
		399
		400	// else a player could have our env open
		401	object *envest = env->outer_env_or_self ();
		402
		403	// the player itself is always on a map, so we will find him here
		404	// even if our inv is in a player.
		405	if (envest->is_on_map ())
		406	if (object *pl = envest->ms ().player ())
		407	if (pl->container_ () == env)
		408	return pl;
		409	}
		410	else
		411	{
		412	// maybe there is a player standing on the same mapspace
		413	// this will catch the case where "this" is a player
		414	if (object *pl = ms ().player ())
		415	if ((pl->contr->ns && !pl->container_ () && !pl->contr->ns->update_look)
		416	|| pl->container_ () == this)
		417	return pl;
		418	}
		419	}
		420
		421	return 0;
		422	}
		423
		424	// adjust weight per container type ("of holding")
		425	static sint32
		426	weight_adjust_for (object *op, sint32 weight)
		427	{
		428	return op->type == CONTAINER
		429	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		430	: weight;
		431	}
		432
319	/*	433	/*
		434	* adjust_weight(object, weight) adds the specified weight to an object,
		435	* and also updates how much the environment(s) is/are carrying.
		436	*/
		437	static void
		438	adjust_weight (object *op, sint32 weight)
		439	{
		440	while (op)
		441	{
		442	// adjust by actual difference to account for rounding errors
		443	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		444	weight = weight_adjust_for (op, op->carrying)
		445	- weight_adjust_for (op, op->carrying - weight);
		446
		447	if (!weight)
		448	return;
		449
		450	op->carrying += weight;
		451
		452	if (object *pl = op->visible_to ())
		453	if (pl != op) // player is handled lazily
		454	esrv_update_item (UPD_WEIGHT, pl, op);
		455
		456	op = op->env;
		457	}
		458	}
		459
		460	/*
320	* sum_weight() is a recursive function which calculates the weight	461	* this is a recursive function which calculates the weight
321	* an object is carrying. It goes through in figures out how much	462	* an object is carrying. It goes through op and figures out how much
322	* containers are carrying, and sums it up.	463	* containers are carrying, and sums it up.
323	*/	464	*/
324	long	465	void
325	sum_weight (object *op)	466	object::update_weight ()
326	{	467	{
327	long sum;	468	sint32 sum = 0;
328	object *inv;
329		469
330	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	470	for (object *op = inv; op; op = op->below)
331	{	471	{
332	if (inv->inv)	472	if (op->inv)
333	sum_weight (inv);	473	op->update_weight ();
334	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	474
		475	sum += op->total_weight ();
		476	}
		477
		478	sum = weight_adjust_for (this, sum);
		479
		480	if (sum != carrying)
335	}	481	{
336
337	if (op->type == CONTAINER && op->stats.Str)
338	sum = (sum * (100 - op->stats.Str)) / 100;
339
340	if (op->carrying != sum)
341	op->carrying = sum;	482	carrying = sum;
342		483
343	return sum;	484	if (object *pl = visible_to ())
344	}	485	if (pl != this) // player is handled lazily
345		486	esrv_update_item (UPD_WEIGHT, pl, this);
346	/**
347	* Return the outermost environment object for a given object.
348	*/
349
350	object *
351	object_get_env_recursive (object *op)
352	{
353	while (op->env != NULL)
354	op = op->env;
355	return op;
356	}
357
358	/*
359	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
360	* a better check. We basically keeping traversing up until we can't
361	* or find a player.
362	*/
363
364	object *
365	is_player_inv (object *op)
366	{
367	for (; op != NULL && op->type != PLAYER; op = op->env)
368	if (op->env == op)
369	op->env = NULL;
370	return op;
371	}
372
373	/*
374	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
375	* Some error messages.
376	* The result of the dump is stored in the static global errmsg array.
377	*/
378
379	void
380	dump_object2 (object *op)
381	{
382	errmsg[0] = 0;
383	return;
384	//TODO//D#d#
385	#if 0
386	char *cp;
387
388	/* object *tmp;*/
389
390	if (op->arch != NULL)
391	{	487	}
392	strcat (errmsg, "arch ");
393	strcat (errmsg, op->arch->name ? op->arch->name : "(null)");
394	strcat (errmsg, "\n");
395	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
396	strcat (errmsg, cp);
397	# if 0
398	/* Don't dump player diffs - they are too long, mostly meaningless, and
399	* will overflow the buffer.
400	* Changed so that we don't dump inventory either. This may
401	* also overflow the buffer.
402	*/
403	if (op->type != PLAYER && (cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
404	strcat (errmsg, cp);
405	for (tmp = op->inv; tmp; tmp = tmp->below)
406	dump_object2 (tmp);
407	# endif
408	strcat (errmsg, "end\n");
409	}
410	else
411	{
412	strcat (errmsg, "Object ");
413	if (op->name == NULL)
414	strcat (errmsg, "(null)");
415	else
416	strcat (errmsg, op->name);
417	strcat (errmsg, "\n");
418	# if 0
419	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
420	strcat (errmsg, cp);
421	for (tmp = op->inv; tmp; tmp = tmp->below)
422	dump_object2 (tmp);
423	# endif
424	strcat (errmsg, "end\n");
425	}
426	#endif
427	}	488	}
428		489
429	/*	490	/*
430	* Dumps an object. Returns output in the static global errmsg array.	491	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
431	*/	492	*/
432		493	char *
433	void
434	dump_object (object *op)	494	dump_object (object *op)
435	{	495	{
436	if (op == NULL)	496	if (!op)
437	{	497	return strdup ("[NULLOBJ]");
438	strcpy (errmsg, "[NULL pointer]");
439	return;
440	}
441	errmsg[0] = '\0';
442	dump_object2 (op);
443	}
444		498
445	void	499	object_freezer freezer;
446	dump_all_objects (void)	500	op->write (freezer);
447	{	501	return freezer.as_string ();
448	object *op;
449
450	for (op = object::first; op != NULL; op = op->next)
451	{
452	dump_object (op);
453	fprintf (logfile, "Object %s\n", errmsg);
454	}
455	}	502	}
456		503
457	/*	504	char *
458	* get_nearest_part(multi-object, object 2) returns the part of the	505	object::as_string ()
459	* multi-object 1 which is closest to the second object.
460	* If it's not a multi-object, it is returned.
461	*/
462
463	object *
464	get_nearest_part (object *op, const object *pl)
465	{	506	{
466	object *tmp, *closest;	507	return dump_object (this);
467	int last_dist, i;
468
469	if (op->more == NULL)
470	return op;
471	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
472	if ((i = distance (tmp, pl)) < last_dist)
473	closest = tmp, last_dist = i;
474	return closest;
475	}	508	}
476		509
477	/*	510	/*
478	* Returns the object which has the count-variable equal to the argument.	511	* Returns the object which has the count-variable equal to the argument.
		512	* VERRRY slow.
479	*/	513	*/
480
481	object *	514	object *
482	find_object (tag_t i)	515	find_object (tag_t i)
483	{	516	{
484	object *op;	517	for_all_objects (op)
485
486	for (op = object::first; op != NULL; op = op->next)
487	if (op->count == i)	518	if (op->count == i)
488	break;
489
490	return op;	519	return op;
		520
		521	return 0;
		522	}
		523
		524	/*
		525	* Returns the object which has the uuid equal to the argument.
		526	* MOAR VERRRY slow.
		527	*/
		528
		529	object *
		530	find_object_uuid (UUID i)
		531	{
		532	for_all_objects (op)
		533	if (op->uuid == i)
		534	return op;
		535
		536	return 0;
491	}	537	}
492		538
493	/*	539	/*
494	* Returns the first object which has a name equal to the argument.	540	* Returns the first object which has a name equal to the argument.
495	* Used only by the patch command, but not all that useful.	541	* Used only by the patch command, but not all that useful.
496	* Enables features like "patch <name-of-other-player> food 999"	542	* Enables features like "patch <name-of-other-player> food 999"
497	*/	543	*/
498
499	object *	544	object *
500	find_object_name (const char *str)	545	find_object_name (const char *str)
501	{	546	{
502	shstr_cmp str_ (str);	547	shstr_cmp str_ (str);
503	object *op;
504		548
505	for (op = object::first; op != NULL; op = op->next)	549	if (str_)
		550	for_all_objects (op)
506	if (op->name == str_)	551	if (op->name == str_)
507	break;	552	return op;
508		553
509	return op;	554	return 0;
510	}
511
512	void
513	free_all_object_data ()
514	{
515	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
516	}	555	}
517		556
518	/*	557	/*
519	* Sets the owner and sets the skill and exp pointers to owner's current	558	* Sets the owner and sets the skill and exp pointers to owner's current
520	* skill and experience objects.	559	* skill and experience objects.
		560	* ACTUALLY NO! investigate! TODO
521	*/	561	*/
522	void	562	void
523	object::set_owner (object *owner)	563	object::set_owner (object *owner)
524	{	564	{
		565	// allow objects which own objects
525	if (!owner)	566	if (owner)
526	return;
527
528	/* next line added to allow objects which own objects */
529	/* Add a check for ownercounts in here, as I got into an endless loop
530	* with the fireball owning a poison cloud which then owned the
531	* fireball. I believe that was caused by one of the objects getting
532	* freed and then another object replacing it. Since the ownercounts
533	* didn't match, this check is valid and I believe that cause is valid.
534	*/
535	while (owner->owner)	567	while (owner->owner)
536	owner = owner->owner;	568	owner = owner->owner;
		569
		570	if (flag [FLAG_FREED])
		571	{
		572	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		573	return;
		574	}
537		575
538	this->owner = owner;	576	this->owner = owner;
		577	}
		578
		579	int
		580	object::slottype () const
		581	{
		582	if (type == SKILL)
		583	{
		584	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		585	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		586	}
		587	else
		588	{
		589	if (slot [body_combat].info) return slot_combat;
		590	if (slot [body_range ].info) return slot_ranged;
		591	}
		592
		593	return slot_none;
539	}	594	}
540		595
541	/* Zero the key_values on op, decrementing the shared-string	596	/* Zero the key_values on op, decrementing the shared-string
542	* refcounts and freeing the links.	597	* refcounts and freeing the links.
543	*/	598	*/
544	static void	599	static void
545	free_key_values (object *op)	600	free_key_values (object *op)
546	{	601	{
547	for (key_value *i = op->key_values; i != 0;)	602	for (key_value *i = op->key_values; i; )
548	{	603	{
549	key_value *next = i->next;	604	key_value *next = i->next;
550	delete i;	605	delete i;
551		606
552	i = next;	607	i = next;
553	}	608	}
554		609
555	op->key_values = 0;	610	op->key_values = 0;
556	}	611	}
557		612
558	void object::clear ()
559	{
560	attachable_base::clear ();
561
562	free_key_values (this);
563
564	owner = 0;
565	name = 0;
566	name_pl = 0;
567	title = 0;
568	race = 0;
569	slaying = 0;
570	skill = 0;
571	msg = 0;
572	lore = 0;
573	custom_name = 0;
574	materialname = 0;
575	contr = 0;
576	below = 0;
577	above = 0;
578	inv = 0;
579	container = 0;
580	env = 0;
581	more = 0;
582	head = 0;
583	map = 0;
584	active_next = 0;
585	active_prev = 0;
586
587	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
588
589	SET_FLAG (this, FLAG_REMOVED);
590
591	/* What is not cleared is next, prev, and count */
592
593	expmul = 1.0;
594	face = blank_face;
595
596	if (settings.casting_time)
597	casting_time = -1;
598	}
599
600	void object::clone (object *destination)
601	{
602	*(object_copy *)destination = *this;
603	*(object_pod *)destination = *this;
604
605	if (self || cb)
606	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
607	}
608
609	/*	613	/*
610	* copy object first frees everything allocated by the second object,	614	* copy_to first frees everything allocated by the dst object,
611	* and then copies the contends of the first object into the second	615	* and then copies the contents of itself into the second
612	* object, allocating what needs to be allocated. Basically, any	616	* object, allocating what needs to be allocated. Basically, any
613	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	617	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
614	* if the first object is freed, the pointers in the new object	618	* if the first object is freed, the pointers in the new object
615	* will point at garbage.	619	* will point at garbage.
616	*/	620	*/
617	void	621	void
618	copy_object (object *op2, object *op)	622	object::copy_to (object *dst)
619	{	623	{
620	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	624	dst->remove ();
621	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	625	*(object_copy *)dst = *this;
622		626	dst->flag [FLAG_REMOVED] = true;
623	op2->clone (op);
624
625	if (is_freed)
626	SET_FLAG (op, FLAG_FREED);
627	if (is_removed)
628	SET_FLAG (op, FLAG_REMOVED);
629
630	if (op2->speed < 0)
631	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
632		627
633	/* Copy over key_values, if any. */	628	/* Copy over key_values, if any. */
634	if (op2->key_values)	629	if (key_values)
635	{	630	{
636	key_value *tail = 0;	631	key_value *tail = 0;
637	key_value *i;
638
639	op->key_values = 0;	632	dst->key_values = 0;
640		633
641	for (i = op2->key_values; i; i = i->next)	634	for (key_value *i = key_values; i; i = i->next)
642	{	635	{
643	key_value *new_link = new key_value;	636	key_value *new_link = new key_value;
644		637
645	new_link->next = 0;	638	new_link->next = 0;
646	new_link->key = i->key;	639	new_link->key = i->key;
647	new_link->value = i->value;	640	new_link->value = i->value;
648		641
649	/* Try and be clever here, too. */	642	/* Try and be clever here, too. */
650	if (!op->key_values)	643	if (!dst->key_values)
651	{	644	{
652	op->key_values = new_link;	645	dst->key_values = new_link;
653	tail = new_link;	646	tail = new_link;
654	}	647	}
655	else	648	else
656	{	649	{
657	tail->next = new_link;	650	tail->next = new_link;
658	tail = new_link;	651	tail = new_link;
659	}	652	}
660	}	653	}
661	}	654	}
662		655
663	update_ob_speed (op);	656	dst->activate ();
		657	}
		658
		659	void
		660	object::instantiate ()
		661	{
		662	if (!uuid.seq) // HACK
		663	uuid = UUID::gen ();
		664
		665	// TODO: unclean state changes, should nt be done in copy_to AND instantiate
		666	if (flag [FLAG_RANDOM_SPEED] && speed)
		667	speed_left = - speed - rndm (); // TODO animation
		668	else
		669	speed_left = -1.;
		670
		671	/* copy the body_info to the body_used - this is only really
		672	* need for monsters, but doesn't hurt to do it for everything.
		673	* by doing so, when a monster is created, it has good starting
		674	* values for the body_used info, so when items are created
		675	* for it, they can be properly equipped.
		676	*/
		677	for (int i = NUM_BODY_LOCATIONS; i--; )
		678	slot[i].used = slot[i].info;
		679
		680	attachable::instantiate ();
		681	}
		682
		683	object *
		684	object::clone ()
		685	{
		686	object *neu = create ();
		687	copy_to (neu);
		688
		689	// TODO: unclean state changes, should not be done in clone AND instantiate
		690	if (neu->flag [FLAG_RANDOM_SPEED] && neu->speed)
		691	neu->speed_left = - neu->speed - rndm (); // TODO animation
		692
		693	neu->map = map; // not copied by copy_to
		694	return neu;
664	}	695	}
665		696
666	/*	697	/*
667	* If an object with the IS_TURNABLE() flag needs to be turned due	698	* If an object with the IS_TURNABLE() flag needs to be turned due
668	* to the closest player being on the other side, this function can	699	* to the closest player being on the other side, this function can
669	* be called to update the face variable, _and_ how it looks on the map.	700	* be called to update the face variable, _and_ how it looks on the map.
670	*/	701	*/
671
672	void	702	void
673	update_turn_face (object *op)	703	update_turn_face (object *op)
674	{	704	{
675	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	705	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
676	return;	706	return;
		707
677	SET_ANIMATION (op, op->direction);	708	SET_ANIMATION (op, op->direction);
678	update_object (op, UP_OBJ_FACE);	709	update_object (op, UP_OBJ_FACE);
679	}	710	}
680		711
681	/*	712	/*
682	* Updates the speed of an object. If the speed changes from 0 to another	713	* Updates the speed of an object. If the speed changes from 0 to another
683	* value, or vice versa, then add/remove the object from the active list.	714	* value, or vice versa, then add/remove the object from the active list.
684	* This function needs to be called whenever the speed of an object changes.	715	* This function needs to be called whenever the speed of an object changes.
685	*/	716	*/
686	void	717	void
687	update_ob_speed (object *op)	718	object::set_speed (float speed)
688	{	719	{
689	extern int arch_init;	720	this->speed = speed;
690		721
691	/* No reason putting the archetypes objects on the speed list,	722	if (has_active_speed ())
692	* since they never really need to be updated.	723	activate ();
693	*/
694
695	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
696	{
697	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
698	#ifdef MANY_CORES
699	abort ();
700	#else
701	op->speed = 0;
702	#endif
703	}
704
705	if (arch_init)
706	return;
707
708	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
709	{
710	/* If already on active list, don't do anything */
711	if (op->active_next || op->active_prev || op == active_objects)
712	return;
713
714	/* process_events() expects us to insert the object at the beginning
715	* of the list. */
716	op->active_next = active_objects;
717
718	if (op->active_next != NULL)
719	op->active_next->active_prev = op;
720
721	active_objects = op;
722	}
723	else	724	else
724	{	725	deactivate ();
725	/* If not on the active list, nothing needs to be done */
726	if (!op->active_next && !op->active_prev && op != active_objects)
727	return;
728
729	if (op->active_prev == NULL)
730	{
731	active_objects = op->active_next;
732
733	if (op->active_next != NULL)
734	op->active_next->active_prev = NULL;
735	}
736	else
737	{
738	op->active_prev->active_next = op->active_next;
739
740	if (op->active_next)
741	op->active_next->active_prev = op->active_prev;
742	}
743
744	op->active_next = NULL;
745	op->active_prev = NULL;
746	}
747	}	726	}
748		727
749	/* This function removes object 'op' from the list of active
750	* objects.
751	* This should only be used for style maps or other such
752	* reference maps where you don't want an object that isn't
753	* in play chewing up cpu time getting processed.
754	* The reverse of this is to call update_ob_speed, which
755	* will do the right thing based on the speed of the object.
756	*/
757	void
758	remove_from_active_list (object *op)
759	{
760	/* If not on the active list, nothing needs to be done */
761	if (!op->active_next && !op->active_prev && op != active_objects)
762	return;
763
764	if (op->active_prev == NULL)
765	{
766	active_objects = op->active_next;
767	if (op->active_next != NULL)
768	op->active_next->active_prev = NULL;
769	}
770	else
771	{
772	op->active_prev->active_next = op->active_next;
773	if (op->active_next)
774	op->active_next->active_prev = op->active_prev;
775	}
776	op->active_next = NULL;
777	op->active_prev = NULL;
778	}
779
780	/*	728	/*
781	* update_object() updates the array which represents the map.	729	* update_object() updates the the map.
782	* It takes into account invisible objects (and represent squares covered	730	* It takes into account invisible objects (and represent squares covered
783	* by invisible objects by whatever is below them (unless it's another	731	* by invisible objects by whatever is below them (unless it's another
784	* invisible object, etc...)	732	* invisible object, etc...)
785	* If the object being updated is beneath a player, the look-window	733	* If the object being updated is beneath a player, the look-window
786	* of that player is updated (this might be a suboptimal way of	734	* of that player is updated (this might be a suboptimal way of
787	* updating that window, though, since update_object() is called _often_)	735	* updating that window, though, since update_object() is called _often_)
788	*	736	*
789	* action is a hint of what the caller believes need to be done.	737	* action is a hint of what the caller believes need to be done.
790	* For example, if the only thing that has changed is the face (due to
791	* an animation), we don't need to call update_position until that actually
792	* comes into view of a player. OTOH, many other things, like addition/removal
793	* of walls or living creatures may need us to update the flags now.
794	* current action are:	738	* current action are:
795	* UP_OBJ_INSERT: op was inserted	739	* UP_OBJ_INSERT: op was inserted
796	* UP_OBJ_REMOVE: op was removed	740	* UP_OBJ_REMOVE: op was removed
797	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	741	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
798	* as that is easier than trying to look at what may have changed.	742	* as that is easier than trying to look at what may have changed.
799	* UP_OBJ_FACE: only the objects face has changed.	743	* UP_OBJ_FACE: only the objects face has changed.
800	*/	744	*/
801
802	void	745	void
803	update_object (object *op, int action)	746	update_object (object *op, int action)
804	{	747	{
805	int update_now = 0, flags;	748	if (!op)
806	MoveType move_on, move_off, move_block, move_slow;
807
808	if (op == NULL)
809	{	749	{
810	/* this should never happen */	750	/* this should never happen */
811	LOG (llevDebug, "update_object() called for NULL object.\n");	751	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
812	return;	752	return;
813	}	753	}
814		754
815	if (op->env != NULL)	755	if (!op->is_on_map ())
816	{	756	{
817	/* Animation is currently handled by client, so nothing	757	/* Animation is currently handled by client, so nothing
818	* to do in this case.	758	* to do in this case.
819	*/	759	*/
820	return;	760	return;
821	}	761	}
822		762
823	/* If the map is saving, don't do anything as everything is
824	* going to get freed anyways.
825	*/
826	if (!op->map || op->map->in_memory == MAP_SAVING)
827	return;
828
829	/* make sure the object is within map boundaries */	763	/* make sure the object is within map boundaries */
830	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	764	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
831	{	765	{
832	LOG (llevError, "update_object() called for object out of map!\n");	766	LOG (llevError, "update_object() called for object out of map!\n");
833	#ifdef MANY_CORES	767	#ifdef MANY_CORES
834	abort ();	768	abort ();
835	#endif	769	#endif
836	return;	770	return;
837	}	771	}
838		772
839	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	773	mapspace &m = op->ms ();
840	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
841	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
842	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
843	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
844	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
845		774
		775	if (!(m.flags_ & P_UPTODATE))
		776	/* nop */;
846	if (action == UP_OBJ_INSERT)	777	else if (action == UP_OBJ_INSERT)
847	{	778	{
		779	#if 0
		780	// this is likely overkill, TODO: revisit (schmorp)
848	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	781	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
849	update_now = 1;
850
851	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	782	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
852	update_now = 1;	783	|| (op->is_player () && !(m.flags_ & P_PLAYER))
853		784	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		785	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
854	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	786	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
855	update_now = 1;
856
857	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
858	update_now = 1;
859
860	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
861	update_now = 1;
862
863	if ((move_on | op->move_on) != move_on)	787	|| (m.move_on | op->move_on ) != m.move_on
864	update_now = 1;
865
866	if ((move_off | op->move_off) != move_off)	788	|| (m.move_off | op->move_off ) != m.move_off
867	update_now = 1;	789	|| (m.move_slow | op->move_slow) != m.move_slow
868
869	/* This isn't perfect, but I don't expect a lot of objects to	790	/* This isn't perfect, but I don't expect a lot of objects to
870	* to have move_allow right now.	791	* have move_allow right now.
871	*/	792	*/
872	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	793	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
873	update_now = 1;	794	m.invalidate ();
874		795	#else
875	if ((move_slow | op->move_slow) != move_slow)	796	// the above is not strong enough a test to skip updating. los maybe? TODO (schmorp)
876	update_now = 1;	797	m.invalidate ();
		798	#endif
877	}	799	}
878	/* if the object is being removed, we can't make intelligent	800	/* if the object is being removed, we can't make intelligent
879	* decisions, because remove_ob can't really pass the object	801	* decisions, because remove_ob can't really pass the object
880	* that is being removed.	802	* that is being removed.
881	*/	803	*/
882	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	804	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
883	update_now = 1;	805	m.invalidate ();
884	else if (action == UP_OBJ_FACE)	806	else if (action == UP_OBJ_FACE)
885	/* Nothing to do for that case */ ;	807	/* Nothing to do for that case */ ;
886	else	808	else
887	LOG (llevError, "update_object called with invalid action: %d\n", action);	809	LOG (llevError, "update_object called with invalid action: %d\n", action);
888		810
889	if (update_now)
890	{
891	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
892	update_position (op->map, op->x, op->y);
893	}
894
895	if (op->more != NULL)	811	if (op->more)
896	update_object (op->more, action);	812	update_object (op->more, action);
897	}	813	}
898		814
899	object::vector object::mortals;
900	object::vector object::objects; // not yet used
901	object *object::first;
902
903	void object::free_mortals ()
904	{
905	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
906	if ((*i)->refcnt)
907	++i; // further delay freeing
908	else
909	{
910	delete *i;
911	mortals.erase (i);
912	}
913
914	static int lastmortals = 0;//D
915
916	if (mortals.size() != lastmortals && lastmortals > 100)//D
917	{
918	lastmortals = mortals.size ();//D
919	LOG (llevDebug, "%d objects in mortal queue\n", lastmortals);//D
920	}
921	}
922
923	object::object ()	815	object::object ()
924	{	816	{
925	SET_FLAG (this, FLAG_REMOVED);	817	SET_FLAG (this, FLAG_REMOVED);
926		818
927	expmul = 1.0;	819	//expmul = 1.0; declared const for the time being
928	face = blank_face;	820	face = blank_face;
		821	material = MATERIAL_NULL;
929	}	822	}
930		823
931	object::~object ()	824	object::~object ()
932	{	825	{
		826	unlink ();
		827
933	free_key_values (this);	828	free_key_values (this);
934	}	829	}
935		830
		831	static int object_count;
		832
936	void object::link ()	833	void object::link ()
937	{	834	{
		835	assert (!index);//D
		836	uuid = UUID::gen ();
938	count = ++ob_count;	837	count = ++object_count;
939	uuid = gen_uuid ();
940		838
941	prev = 0;	839	refcnt_inc ();
942	next = object::first;	840	objects.insert (this);
943
944	if (object::first)
945	object::first->prev = this;
946
947	object::first = this;
948	}	841	}
949		842
950	void object::unlink ()	843	void object::unlink ()
951	{	844	{
952	if (this == object::first)	845	if (!index)
953	object::first = next;	846	return;
954		847
955	/* Remove this object from the list of used objects */	848	objects.erase (this);
956	if (prev) prev->next = next;	849	refcnt_dec ();
957	if (next) next->prev = prev;	850	}
958		851
959	prev = 0;	852	void
960	next = 0;	853	object::activate ()
		854	{
		855	/* If already on active list, don't do anything */
		856	if (active)
		857	return;
		858
		859	if (has_active_speed ())
		860	{
		861	if (flag [FLAG_FREED])
		862	LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
		863
		864	actives.insert (this);
		865	}
		866	}
		867
		868	void
		869	object::activate_recursive ()
		870	{
		871	activate ();
		872
		873	for (object *op = inv; op; op = op->below)
		874	op->activate_recursive ();
		875	}
		876
		877	/* This function removes object 'op' from the list of active
		878	* objects.
		879	* This should only be used for style maps or other such
		880	* reference maps where you don't want an object that isn't
		881	* in play chewing up cpu time getting processed.
		882	* The reverse of this is to call update_ob_speed, which
		883	* will do the right thing based on the speed of the object.
		884	*/
		885	void
		886	object::deactivate ()
		887	{
		888	/* If not on the active list, nothing needs to be done */
		889	if (!active)
		890	return;
		891
		892	actives.erase (this);
		893	}
		894
		895	void
		896	object::deactivate_recursive ()
		897	{
		898	for (object *op = inv; op; op = op->below)
		899	op->deactivate_recursive ();
		900
		901	deactivate ();
		902	}
		903
		904	void
		905	object::set_flag_inv (int flag, int value)
		906	{
		907	for (object *op = inv; op; op = op->below)
		908	{
		909	op->flag [flag] = value;
		910	op->set_flag_inv (flag, value);
		911	}
		912	}
		913
		914	/*
		915	* Remove and free all objects in the inventory of the given object.
		916	* object.c ?
		917	*/
		918	void
		919	object::destroy_inv (bool drop_to_ground)
		920	{
		921	// need to check first, because the checks below might segfault
		922	// as we might be on an invalid mapspace and crossfire code
		923	// is too buggy to ensure that the inventory is empty.
		924	// corollary: if you create arrows etc. with stuff in its inventory,
		925	// cf will crash below with off-map x and y
		926	if (!inv)
		927	return;
		928
		929	/* Only if the space blocks everything do we not process -
		930	* if some form of movement is allowed, let objects
		931	* drop on that space.
		932	*/
		933	if (!drop_to_ground
		934	|| !map
		935	|| map->in_memory != MAP_ACTIVE
		936	|| map->no_drop
		937	|| ms ().move_block == MOVE_ALL)
		938	{
		939	while (inv)
		940	inv->destroy ();
		941	}
		942	else
		943	{ /* Put objects in inventory onto this space */
		944	while (inv)
		945	{
		946	object *op = inv;
		947
		948	if (op->flag [FLAG_STARTEQUIP]
		949	|| op->flag [FLAG_NO_DROP]
		950	|| op->type == RUNE
		951	|| op->type == TRAP
		952	|| op->flag [FLAG_IS_A_TEMPLATE]
		953	|| op->flag [FLAG_DESTROY_ON_DEATH])
		954	op->destroy ();
		955	else
		956	map->insert (op, x, y);
		957	}
		958	}
961	}	959	}
962		960
963	object *object::create ()	961	object *object::create ()
964	{	962	{
965	object *op = new object;	963	object *op = new object;
966	op->link ();	964	op->link ();
967	return op;	965	return op;
968	}	966	}
969		967
970	/*	968	static struct freed_map : maptile
971	* free_object() frees everything allocated by an object, removes
972	* it from the list of used objects, and puts it on the list of
973	* free objects. The IS_FREED() flag is set in the object.
974	* The object must have been removed by remove_ob() first for
975	* this function to succeed.
976	*
977	* If free_inventory is set, free inventory as well. Else drop items in
978	* inventory to the ground.
979	*/
980	void object::free (bool free_inventory)
981	{	969	{
982	if (QUERY_FLAG (this, FLAG_FREED))	970	freed_map ()
		971	{
		972	path = "<freed objects map>";
		973	name = "/internal/freed_objects_map";
		974	width = 3;
		975	height = 3;
		976	no_drop = 1;
		977	no_reset = 1;
		978
		979	alloc ();
		980	in_memory = MAP_ACTIVE;
		981	}
		982
		983	~freed_map ()
		984	{
		985	destroy ();
		986	}
		987	} freed_map; // freed objects are moved here to avoid crashes
		988
		989	void
		990	object::do_destroy ()
		991	{
		992	if (flag [FLAG_IS_LINKED])
		993	remove_link ();
		994
		995	if (flag [FLAG_FRIENDLY])
		996	remove_friendly_object (this);
		997
		998	remove ();
		999
		1000	attachable::do_destroy ();
		1001
		1002	deactivate ();
		1003	unlink ();
		1004
		1005	flag [FLAG_FREED] = 1;
		1006
		1007	// hack to ensure that freed objects still have a valid map
		1008	map = &freed_map;
		1009	x = 1;
		1010	y = 1;
		1011
		1012	if (more)
		1013	{
		1014	more->destroy ();
		1015	more = 0;
		1016	}
		1017
		1018	head = 0;
		1019
		1020	// clear those pointers that likely might cause circular references
		1021	owner = 0;
		1022	enemy = 0;
		1023	attacked_by = 0;
		1024	current_weapon = 0;
		1025	}
		1026
		1027	void
		1028	object::destroy ()
		1029	{
		1030	if (destroyed ())
983	return;	1031	return;
984		1032
985	if (QUERY_FLAG (this, FLAG_FRIENDLY))	1033	if (!is_head () && !head->destroyed ())
986	remove_friendly_object (this);
987
988	if (!QUERY_FLAG (this, FLAG_REMOVED))
989	remove_ob (this);
990
991	SET_FLAG (this, FLAG_FREED);
992
993	if (more)
994	{
995	more->free (free_inventory);
996	more = 0;
997	}	1034	{
998		1035	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
999	if (inv)	1036	head->destroy ();
		1037	return;
1000	{	1038	}
1001	/* Only if the space blocks everything do we not process -
1002	* if some form of movement is allowed, let objects
1003	* drop on that space.
1004	*/
1005	if (free_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
1006	{
1007	object *op = inv;
1008		1039
1009	while (op)	1040	destroy_inv (false);
1010	{
1011	object *tmp = op->below;
1012	op->free (free_inventory);
1013	op = tmp;
1014	}
1015	}
1016	else
1017	{ /* Put objects in inventory onto this space */
1018	object *op = inv;
1019		1041
1020	while (op)	1042	if (is_head ())
1021	{	1043	if (sound_destroy)
1022	object *tmp = op->below;	1044	play_sound (sound_destroy);
		1045	else if (flag [FLAG_MONSTER])
		1046	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
1023		1047
1024	remove_ob (op);	1048	attachable::destroy ();
1025
1026	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
1027	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
1028	free_object (op);
1029	else
1030	{
1031	op->x = x;
1032	op->y = y;
1033	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
1034	}
1035
1036	op = tmp;
1037	}
1038	}
1039	}
1040
1041	// clear those pointers that likely might have circular references to us
1042	owner = 0;
1043	enemy = 0;
1044	attacked_by = 0;
1045
1046	/* Remove object from the active list */
1047	speed = 0;
1048	update_ob_speed (this);
1049
1050	unlink ();
1051
1052	mortals.push_back (this);
1053	}	1049	}
1054		1050
1055	/*	1051	/* op->remove ():
1056	* sub_weight() recursively (outwards) subtracts a number from the
1057	* weight of an object (and what is carried by it's environment(s)).
1058	*/
1059
1060	void
1061	sub_weight (object *op, signed long weight)
1062	{
1063	while (op != NULL)
1064	{
1065	if (op->type == CONTAINER)
1066	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1067
1068	op->carrying -= weight;
1069	op = op->env;
1070	}
1071	}
1072
1073	/* remove_ob(op):
1074	* This function removes the object op from the linked list of objects	1052	* This function removes the object op from the linked list of objects
1075	* which it is currently tied to. When this function is done, the	1053	* which it is currently tied to. When this function is done, the
1076	* object will have no environment. If the object previously had an	1054	* object will have no environment. If the object previously had an
1077	* environment, the x and y coordinates will be updated to	1055	* environment, the x and y coordinates will be updated to
1078	* the previous environment.	1056	* the previous environment.
1079	* Beware: This function is called from the editor as well!
1080	*/	1057	*/
1081
1082	void	1058	void
1083	remove_ob (object *op)	1059	object::do_remove ()
1084	{	1060	{
1085	object *tmp, *last = 0;	1061	if (flag [FLAG_REMOVED])
1086	object *otmp;
1087
1088	int check_walk_off;
1089	maptile *m;
1090
1091	sint16 x, y;
1092
1093	if (QUERY_FLAG (op, FLAG_REMOVED))
1094	return;	1062	return;
1095		1063
1096	SET_FLAG (op, FLAG_REMOVED);	1064	INVOKE_OBJECT (REMOVE, this);
1097		1065
1098	if (op->more != NULL)	1066	flag [FLAG_REMOVED] = true;
1099	remove_ob (op->more);	1067
		1068	if (more)
		1069	more->remove ();
1100		1070
1101	/*	1071	/*
1102	* In this case, the object to be removed is in someones	1072	* In this case, the object to be removed is in someones
1103	* inventory.	1073	* inventory.
1104	*/	1074	*/
1105	if (op->env != NULL)	1075	if (env)
1106	{	1076	{
1107	if (op->nrof)	1077	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1108	sub_weight (op->env, op->weight * op->nrof);	1078	if (object *pl = visible_to ())
1109	else	1079	esrv_del_item (pl->contr, count);
1110	sub_weight (op->env, op->weight + op->carrying);	1080	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
1111		1081
1112	/* NO_FIX_PLAYER is set when a great many changes are being	1082	adjust_weight (env, -total_weight ());
1113	* made to players inventory. If set, avoiding the call
1114	* to save cpu time.
1115	*/
1116	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1117	fix_player (otmp);
1118		1083
1119	if (op->above != NULL)	1084	object *pl = in_player ();
1120	op->above->below = op->below;
1121	else
1122	op->env->inv = op->below;
1123
1124	if (op->below != NULL)
1125	op->below->above = op->above;
1126		1085
1127	/* we set up values so that it could be inserted into	1086	/* we set up values so that it could be inserted into
1128	* the map, but we don't actually do that - it is up	1087	* the map, but we don't actually do that - it is up
1129	* to the caller to decide what we want to do.	1088	* to the caller to decide what we want to do.
1130	*/	1089	*/
1131	op->x = op->env->x, op->y = op->env->y;
1132	op->map = op->env->map;	1090	map = env->map;
1133	op->above = NULL, op->below = NULL;
1134	op->env = NULL;
1135	}
1136	else if (op->map)
1137	{
1138	x = op->x;	1091	x = env->x;
1139	y = op->y;	1092	y = env->y;
1140	m = get_map_from_coord (op->map, &x, &y);
1141		1093
1142	if (!m)	1094	// make sure cmov optimisation is applicable
		1095	*(above ? &above->below : &env->inv) = below;
		1096	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1097
		1098	above = 0;
		1099	below = 0;
		1100	env = 0;
		1101
		1102	if (pl && pl->is_player ())
1143	{	1103	{
1144	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1104	if (expect_false (pl->contr->combat_ob == this))
1145	op->map->path, op->x, op->y);
1146	/* in old days, we used to set x and y to 0 and continue.
1147	* it seems if we get into this case, something is probablye
1148	* screwed up and should be fixed.
1149	*/	1105	{
1150	abort ();	1106	pl->apply (pl->contr->combat_ob, AP_UNAPPLY);
		1107	pl->contr->combat_ob = 0;
		1108	if (pl->contr->ranged_ob) pl->apply (pl->contr->ranged_ob);
		1109	}
		1110
		1111	if (expect_false (pl->contr->ranged_ob == this))
		1112	{
		1113	pl->apply (pl->contr->ranged_ob, AP_UNAPPLY);
		1114	pl->contr->ranged_ob = 0;
		1115	if (pl->contr->combat_ob) pl->apply (pl->contr->combat_ob);
		1116	}
		1117
		1118	pl->contr->queue_stats_update ();
		1119
		1120	if (expect_false (glow_radius) && pl->is_on_map ())
		1121	update_all_los (pl->map, pl->x, pl->y);
1151	}	1122	}
		1123	}
		1124	else if (map)
		1125	{
		1126	map->dirty = true;
		1127	mapspace &ms = this->ms ();
1152		1128
1153	if (op->map != m)	1129	if (object *pl = ms.player ())
1154	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1155	op->map->path, m->path, op->x, op->y, x, y);
1156
1157	/* Re did the following section of code - it looks like it had
1158	* lots of logic for things we no longer care about
1159	*/	1130	{
		1131	if (is_player ())
		1132	{
		1133	if (!flag [FLAG_WIZPASS])
		1134	ms.smell = ++mapspace::smellcount; // remember the smell of the player
		1135
		1136	// leaving a spot always closes any open container on the ground
		1137	if (container && !container->env)
		1138	// this causes spurious floorbox updates, but it ensures
		1139	// that the CLOSE event is being sent.
		1140	close_container ();
		1141
		1142	--map->players;
		1143	map->touch ();
		1144	}
		1145	else if (pl->container_ () == this)
		1146	{
		1147	// removing a container should close it
		1148	close_container ();
		1149	}
		1150
		1151	esrv_del_item (pl->contr, count);
		1152	}
1160		1153
1161	/* link the object above us */	1154	/* link the object above us */
1162	if (op->above)	1155	// re-link, make sure compiler can easily use cmove
1163	op->above->below = op->below;	1156	*(above ? &above->below : &ms.top) = below;
1164	else	1157	*(below ? &below->above : &ms.bot) = above;
1165	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1166		1158
1167	/* Relink the object below us, if there is one */	1159	above = 0;
1168	if (op->below)	1160	below = 0;
1169	op->below->above = op->above;	1161
1170	else	1162	ms.invalidate ();
		1163
		1164	if (map->in_memory == MAP_SAVING)
		1165	return;
		1166
		1167	int check_walk_off = !flag [FLAG_NO_APPLY];
		1168
		1169	if (object *pl = ms.player ())
1171	{	1170	{
1172	/* Nothing below, which means we need to relink map object for this space	1171	if (pl->container_ () == this)
1173	* use translated coordinates in case some oddness with map tiling is	1172	/* If a container that the player is currently using somehow gets
1174	* evident	1173	* removed (most likely destroyed), update the player view
		1174	* appropriately.
1175	*/	1175	*/
1176	if (GET_MAP_OB (m, x, y) != op)	1176	pl->close_container ();
1177	{
1178	dump_object (op);
1179	LOG (llevError,
1180	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", errmsg);
1181	dump_object (GET_MAP_OB (m, x, y));
1182	LOG (llevError, "%s\n", errmsg);
1183	}
1184		1177
1185	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */	1178	//TODO: the floorbox prev/next might need updating
		1179	//esrv_del_item (pl->contr, count);
		1180	//TODO: update floorbox to preserve ordering
		1181	if (pl->contr->ns)
		1182	pl->contr->ns->floorbox_update ();
1186	}	1183	}
1187		1184
1188	op->above = 0;	1185	if (check_walk_off)
1189	op->below = 0;	1186	for (object *above, *tmp = ms.bot; tmp; tmp = above)
1190
1191	if (op->map->in_memory == MAP_SAVING)
1192	return;
1193
1194	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1195
1196	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1197	{	1187	{
		1188	above = tmp->above;
		1189
1198	/* No point updating the players look faces if he is the object	1190	/* No point updating the players look faces if he is the object
1199	* being removed.	1191	* being removed.
1200	*/
1201
1202	if (tmp->type == PLAYER && tmp != op)
1203	{
1204	/* If a container that the player is currently using somehow gets
1205	* removed (most likely destroyed), update the player view
1206	* appropriately.
1207	*/	1192	*/
1208	if (tmp->container == op)
1209	{
1210	CLEAR_FLAG (op, FLAG_APPLIED);
1211	tmp->container = NULL;
1212	}
1213		1193
1214	tmp->contr->socket.update_look = 1;
1215	}
1216
1217	/* See if player moving off should effect something */	1194	/* See if object moving off should effect something */
1218	if (check_walk_off
1219	&& ((op->move_type & tmp->move_off)	1195	if ((move_type & tmp->move_off)
1220	&& (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1196	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0)
1221	{
1222	move_apply (tmp, op, NULL);	1197	move_apply (tmp, this, 0);
1223
1224	if (op->destroyed ())
1225	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1226	}	1198	}
1227		1199
1228	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1200	if (affects_los ())
1229
1230	if (tmp->above == tmp)
1231	tmp->above = NULL;
1232
1233	last = tmp;
1234	}
1235
1236	/* last == NULL of there are no objects on this space */
1237	if (last == NULL)
1238	{
1239	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1240	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1241	* those out anyways, and if there are any flags set right now, they won't
1242	* be correct anyways.
1243	*/
1244	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1245	update_position (op->map, op->x, op->y);
1246	}
1247	else
1248	update_object (last, UP_OBJ_REMOVE);
1249
1250	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))
1251	update_all_los (op->map, op->x, op->y);	1201	update_all_los (map, x, y);
1252	}	1202	}
1253	}	1203	}
1254		1204
1255	/*	1205	/*
1256	* merge_ob(op,top):	1206	* merge_ob(op,top):
…		…
1264	merge_ob (object *op, object *top)	1214	merge_ob (object *op, object *top)
1265	{	1215	{
1266	if (!op->nrof)	1216	if (!op->nrof)
1267	return 0;	1217	return 0;
1268		1218
1269	if (top == NULL)	1219	if (!top)
1270	for (top = op; top != NULL && top->above != NULL; top = top->above);	1220	for (top = op; top && top->above; top = top->above)
		1221	;
1271		1222
1272	for (; top != NULL; top = top->below)	1223	for (; top; top = top->below)
1273	{	1224	if (object::can_merge (op, top))
1274	if (top == op)
1275	continue;
1276	if (CAN_MERGE (op, top))
1277	{	1225	{
1278	top->nrof += op->nrof;	1226	top->nrof += op->nrof;
1279		1227
1280	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1228	if (object *pl = top->visible_to ())
1281	op->weight = 0; /* Don't want any adjustements now */	1229	esrv_update_item (UPD_NROF, pl, top);
1282	remove_ob (op);	1230
1283	free_object (op);	1231	op->weight = 0; // cancel the addition above
		1232	op->carrying = 0; // must be 0 already
		1233
		1234	op->destroy ();
		1235
1284	return top;	1236	return top;
1285	}	1237	}
1286	}
1287		1238
1288	return 0;	1239	return 0;
1289	}	1240	}
1290		1241
		1242	void
		1243	object::expand_tail ()
		1244	{
		1245	if (more)
		1246	return;
		1247
		1248	object *prev = this;
		1249
		1250	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1251	{
		1252	object *op = at->instance ();
		1253
		1254	op->name = name;
		1255	op->name_pl = name_pl;
		1256	op->title = title;
		1257
		1258	op->head = this;
		1259	prev->more = op;
		1260
		1261	prev = op;
		1262	}
		1263	}
		1264
1291	/*	1265	/*
1292	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1266	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1293	* job preparing multi-part monsters	1267	* job preparing multi-part monsters.
1294	*/	1268	*/
1295	object *	1269	object *
1296	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1270	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1297	{	1271	{
1298	object *tmp;	1272	op->remove ();
1299		1273
1300	if (op->head)
1301	op = op->head;
1302
1303	for (tmp = op; tmp; tmp = tmp->more)	1274	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1304	{	1275	{
1305	tmp->x = x + tmp->arch->clone.x;	1276	tmp->x = x + tmp->arch->x;
1306	tmp->y = y + tmp->arch->clone.y;	1277	tmp->y = y + tmp->arch->y;
1307	}	1278	}
1308		1279
1309	return insert_ob_in_map (op, m, originator, flag);	1280	return insert_ob_in_map (op, m, originator, flag);
1310	}	1281	}
1311		1282
…		…
1324	* Passing 0 for flag gives proper default values, so flag really only needs	1295	* Passing 0 for flag gives proper default values, so flag really only needs
1325	* to be set if special handling is needed.	1296	* to be set if special handling is needed.
1326	*	1297	*
1327	* Return value:	1298	* Return value:
1328	* new object if 'op' was merged with other object	1299	* new object if 'op' was merged with other object
1329	* NULL if 'op' was destroyed	1300	* NULL if there was an error (destroyed, blocked etc.)
1330	* just 'op' otherwise	1301	* just 'op' otherwise
1331	*/	1302	*/
1332
1333	object *	1303	object *
1334	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1304	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1335	{	1305	{
1336	object *tmp, *top, *floor = NULL;	1306	op->remove ();
1337	sint16 x, y;
1338		1307
1339	if (QUERY_FLAG (op, FLAG_FREED))	1308	if (m == &freed_map)//D TODO: remove soon
1340	{	1309	{//D
1341	LOG (llevError, "Trying to insert freed object!\n");	1310	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
1342	return NULL;
1343	}	1311	}//D
1344
1345	if (m == NULL)
1346	{
1347	dump_object (op);
1348	LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg);
1349	return op;
1350	}
1351
1352	if (out_of_map (m, op->x, op->y))
1353	{
1354	dump_object (op);
1355	LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg);
1356	#ifdef MANY_CORES
1357	/* Better to catch this here, as otherwise the next use of this object
1358	* is likely to cause a crash. Better to find out where it is getting
1359	* improperly inserted.
1360	*/
1361	abort ();
1362	#endif
1363	return op;
1364	}
1365
1366	if (!QUERY_FLAG (op, FLAG_REMOVED))
1367	{
1368	dump_object (op);
1369	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg);
1370	return op;
1371	}
1372
1373	if (op->more != NULL)
1374	{
1375	/* The part may be on a different map. */
1376
1377	object *more = op->more;
1378
1379	/* We really need the caller to normalize coordinates - if
1380	* we set the map, that doesn't work if the location is within
1381	* a map and this is straddling an edge. So only if coordinate
1382	* is clear wrong do we normalize it.
1383	*/
1384	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1385	more->map = get_map_from_coord (m, &more->x, &more->y);
1386	else if (!more->map)
1387	{
1388	/* For backwards compatibility - when not dealing with tiled maps,
1389	* more->map should always point to the parent.
1390	*/
1391	more->map = m;
1392	}
1393
1394	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1395	{
1396	if (!op->head)
1397	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1398
1399	return NULL;
1400	}
1401	}
1402
1403	CLEAR_FLAG (op, FLAG_REMOVED);
1404		1312
1405	/* Ideally, the caller figures this out. However, it complicates a lot	1313	/* Ideally, the caller figures this out. However, it complicates a lot
1406	* of areas of callers (eg, anything that uses find_free_spot would now	1314	* of areas of callers (eg, anything that uses find_free_spot would now
1407	* need extra work	1315	* need extra work
1408	*/	1316	*/
1409	op->map = get_map_from_coord (m, &op->x, &op->y);	1317	maptile *newmap = m;
1410	x = op->x;	1318	if (!xy_normalise (newmap, op->x, op->y))
1411	y = op->y;	1319	{
		1320	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
		1321	return 0;
		1322	}
		1323
		1324	if (object *more = op->more)
		1325	if (!insert_ob_in_map (more, m, originator, flag))
		1326	return 0;
		1327
		1328	op->flag [FLAG_REMOVED] = false;
		1329	op->env = 0;
		1330	op->map = newmap;
		1331
		1332	mapspace &ms = op->ms ();
1412		1333
1413	/* this has to be done after we translate the coordinates.	1334	/* this has to be done after we translate the coordinates.
1414	*/	1335	*/
1415	if (op->nrof && !(flag & INS_NO_MERGE))	1336	if (op->nrof && !(flag & INS_NO_MERGE))
1416	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1337	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1417	if (CAN_MERGE (op, tmp))	1338	if (object::can_merge (op, tmp))
1418	{	1339	{
		1340	// TODO: we actually want to update tmp, not op,
		1341	// but some caller surely breaks when we return tmp
		1342	// from here :/
1419	op->nrof += tmp->nrof;	1343	op->nrof += tmp->nrof;
1420	remove_ob (tmp);	1344	tmp->destroy ();
1421	free_object (tmp);
1422	}	1345	}
1423		1346
1424	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1347	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1425	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1348	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1426		1349
…		…
1433	{	1356	{
1434	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1357	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1435	abort ();	1358	abort ();
1436	}	1359	}
1437		1360
		1361	if (!originator->is_on_map ())
		1362	{
		1363	LOG (llevError, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1364	op->debug_desc (), originator->debug_desc ());
		1365	abort ();
		1366	}
		1367
1438	op->above = originator;	1368	op->above = originator;
1439	op->below = originator->below;	1369	op->below = originator->below;
1440
1441	if (op->below)
1442	op->below->above = op;
1443	else
1444	SET_MAP_OB (op->map, op->x, op->y, op);
1445
1446	/* since *below* originator, no need to update top */
1447	originator->below = op;	1370	originator->below = op;
		1371
		1372	*(op->below ? &op->below->above : &ms.bot) = op;
1448	}	1373	}
1449	else	1374	else
1450	{	1375	{
		1376	object *floor = 0;
		1377	object *top = ms.top;
		1378
1451	/* If there are other objects, then */	1379	/* If there are other objects, then */
1452	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1380	if (top)
1453	{	1381	{
1454	object *last = NULL;
1455
1456	/*	1382	/*
1457	* If there are multiple objects on this space, we do some trickier handling.	1383	* If there are multiple objects on this space, we do some trickier handling.
1458	* We've already dealt with merging if appropriate.	1384	* We've already dealt with merging if appropriate.
1459	* Generally, we want to put the new object on top. But if	1385	* Generally, we want to put the new object on top. But if
1460	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1386	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1463	* once we get to them. This reduces the need to traverse over all of	1389	* once we get to them. This reduces the need to traverse over all of
1464	* them when adding another one - this saves quite a bit of cpu time	1390	* them when adding another one - this saves quite a bit of cpu time
1465	* when lots of spells are cast in one area. Currently, it is presumed	1391	* when lots of spells are cast in one area. Currently, it is presumed
1466	* that flying non pickable objects are spell objects.	1392	* that flying non pickable objects are spell objects.
1467	*/	1393	*/
1468		1394	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1469	while (top != NULL)
1470	{	1395	{
1471	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1396	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
1472	floor = top;	1397	floor = tmp;
1473		1398
1474	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1399	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1475	{	1400	{
1476	/* We insert above top, so we want this object below this */	1401	/* We insert above top, so we want this object below this */
1477	top = top->below;	1402	top = tmp->below;
1478	break;	1403	break;
1479	}	1404	}
1480		1405
1481	last = top;
1482	top = top->above;	1406	top = tmp;
1483	}	1407	}
1484
1485	/* Don't want top to be NULL, so set it to the last valid object */
1486	top = last;
1487		1408
1488	/* We let update_position deal with figuring out what the space	1409	/* We let update_position deal with figuring out what the space
1489	* looks like instead of lots of conditions here.	1410	* looks like instead of lots of conditions here.
1490	* makes things faster, and effectively the same result.	1411	* makes things faster, and effectively the same result.
1491	*/	1412	*/
1492		1413
1493	/* Have object 'fall below' other objects that block view.	1414	/* Have object 'fall below' other objects that block view.
1494	* Unless those objects are exits, type 66	1415	* Unless those objects are exits.
1495	* If INS_ON_TOP is used, don't do this processing	1416	* If INS_ON_TOP is used, don't do this processing
1496	* Need to find the object that in fact blocks view, otherwise	1417	* Need to find the object that in fact blocks view, otherwise
1497	* stacking is a bit odd.	1418	* stacking is a bit odd.
1498	*/	1419	*/
1499	if (!(flag & INS_ON_TOP) &&	1420	if (!(flag & INS_ON_TOP)
1500	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1421	&& ms.flags () & P_BLOCKSVIEW
		1422	&& (op->face && !faces [op->face].visibility))
1501	{	1423	{
		1424	object *last;
		1425
1502	for (last = top; last != floor; last = last->below)	1426	for (last = top; last != floor; last = last->below)
1503	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1427	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1504	break;	1428	break;
		1429
1505	/* Check to see if we found the object that blocks view,	1430	/* Check to see if we found the object that blocks view,
1506	* and make sure we have a below pointer for it so that	1431	* and make sure we have a below pointer for it so that
1507	* we can get inserted below this one, which requires we	1432	* we can get inserted below this one, which requires we
1508	* set top to the object below us.	1433	* set top to the object below us.
1509	*/	1434	*/
1510	if (last && last->below && last != floor)	1435	if (last && last->below && last != floor)
1511	top = last->below;	1436	top = last->below;
1512	}	1437	}
1513	} /* If objects on this space */	1438	} /* If objects on this space */
1514		1439
1515	if (flag & INS_MAP_LOAD)
1516	top = GET_MAP_TOP (op->map, op->x, op->y);
1517
1518	if (flag & INS_ABOVE_FLOOR_ONLY)	1440	if (flag & INS_ABOVE_FLOOR_ONLY)
1519	top = floor;	1441	top = floor;
1520		1442
1521	/* Top is the object that our object (op) is going to get inserted above.	1443	// insert object above top, or bottom-most if top = 0
1522	*/
1523
1524	/* First object on this space */
1525	if (!top)	1444	if (!top)
1526	{	1445	{
1527	op->above = GET_MAP_OB (op->map, op->x, op->y);
1528
1529	if (op->above)
1530	op->above->below = op;
1531
1532	op->below = NULL;	1446	op->below = 0;
1533	SET_MAP_OB (op->map, op->x, op->y, op);	1447	op->above = ms.bot;
		1448	ms.bot = op;
		1449
		1450	*(op->above ? &op->above->below : &ms.top) = op;
1534	}	1451	}
1535	else	1452	else
1536	{ /* get inserted into the stack above top */	1453	{
1537	op->above = top->above;	1454	op->above = top->above;
1538
1539	if (op->above)
1540	op->above->below = op;	1455	top->above = op;
1541		1456
1542	op->below = top;	1457	op->below = top;
1543	top->above = op;	1458	*(op->above ? &op->above->below : &ms.top) = op;
1544	}	1459	}
		1460	}
1545		1461
1546	if (op->above == NULL)	1462	if (op->is_player ())
1547	SET_MAP_TOP (op->map, op->x, op->y, op);	1463	{
1548	} /* else not INS_BELOW_ORIGINATOR */
1549
1550	if (op->type == PLAYER)
1551	op->contr->do_los = 1;	1464	op->contr->do_los = 1;
		1465	++op->map->players;
		1466	op->map->touch ();
		1467	}
1552		1468
1553	/* If we have a floor, we know the player, if any, will be above	1469	op->map->dirty = true;
1554	* it, so save a few ticks and start from there.	1470
1555	*/	1471	if (object *pl = ms.player ())
1556	if (!(flag & INS_MAP_LOAD))	1472	//TODO: the floorbox prev/next might need updating
1557	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1473	//esrv_send_item (pl, op);
1558	if (tmp->type == PLAYER)	1474	//TODO: update floorbox to preserve ordering
1559	tmp->contr->socket.update_look = 1;	1475	if (pl->contr->ns)
		1476	pl->contr->ns->floorbox_update ();
1560		1477
1561	/* If this object glows, it may affect lighting conditions that are	1478	/* If this object glows, it may affect lighting conditions that are
1562	* visible to others on this map. But update_all_los is really	1479	* visible to others on this map. But update_all_los is really
1563	* an inefficient way to do this, as it means los for all players	1480	* an inefficient way to do this, as it means los for all players
1564	* on the map will get recalculated. The players could very well	1481	* on the map will get recalculated. The players could very well
1565	* be far away from this change and not affected in any way -	1482	* be far away from this change and not affected in any way -
1566	* this should get redone to only look for players within range,	1483	* this should get redone to only look for players within range,
1567	* or just updating the P_NEED_UPDATE for spaces within this area	1484	* or just updating the P_UPTODATE for spaces within this area
1568	* of effect may be sufficient.	1485	* of effect may be sufficient.
1569	*/	1486	*/
1570	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1487	if (op->affects_los ())
		1488	{
		1489	op->ms ().invalidate ();
1571	update_all_los (op->map, op->x, op->y);	1490	update_all_los (op->map, op->x, op->y);
		1491	}
1572		1492
1573	/* updates flags (blocked, alive, no magic, etc) for this map space */	1493	/* updates flags (blocked, alive, no magic, etc) for this map space */
1574	update_object (op, UP_OBJ_INSERT);	1494	update_object (op, UP_OBJ_INSERT);
1575		1495
		1496	INVOKE_OBJECT (INSERT, op);
		1497
1576	/* Don't know if moving this to the end will break anything. However,	1498	/* Don't know if moving this to the end will break anything. However,
1577	* we want to have update_look set above before calling this.	1499	* we want to have floorbox_update called before calling this.
1578	*	1500	*
1579	* check_move_on() must be after this because code called from	1501	* check_move_on() must be after this because code called from
1580	* check_move_on() depends on correct map flags (so functions like	1502	* check_move_on() depends on correct map flags (so functions like
1581	* blocked() and wall() work properly), and these flags are updated by	1503	* blocked() and wall() work properly), and these flags are updated by
1582	* update_object().	1504	* update_object().
1583	*/	1505	*/
1584		1506
1585	/* if this is not the head or flag has been passed, don't check walk on status */	1507	/* if this is not the head or flag has been passed, don't check walk on status */
1586	if (!(flag & INS_NO_WALK_ON) && !op->head)	1508	if (!(flag & INS_NO_WALK_ON) && op->is_head ())
1587	{	1509	{
1588	if (check_move_on (op, originator))	1510	if (check_move_on (op, originator))
1589	return NULL;	1511	return 0;
1590		1512
1591	/* If we are a multi part object, lets work our way through the check	1513	/* If we are a multi part object, lets work our way through the check
1592	* walk on's.	1514	* walk on's.
1593	*/	1515	*/
1594	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1516	for (object *tmp = op->more; tmp; tmp = tmp->more)
1595	if (check_move_on (tmp, originator))	1517	if (check_move_on (tmp, originator))
1596	return NULL;	1518	return 0;
1597	}	1519	}
1598		1520
1599	return op;	1521	return op;
1600	}	1522	}
1601		1523
1602	/* this function inserts an object in the map, but if it	1524	/* this function inserts an object in the map, but if it
1603	* finds an object of its own type, it'll remove that one first.	1525	* finds an object of its own type, it'll remove that one first.
1604	* op is the object to insert it under: supplies x and the map.	1526	* op is the object to insert it under: supplies x and the map.
1605	*/	1527	*/
1606	void	1528	void
1607	replace_insert_ob_in_map (const char *arch_string, object *op)	1529	replace_insert_ob_in_map (shstr_tmp archname, object *op)
1608	{	1530	{
1609	object *
1610	tmp;
1611	object *
1612	tmp1;
1613
1614	/* first search for itself and remove any old instances */	1531	/* first search for itself and remove any old instances */
1615		1532
1616	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1533	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1617	{
1618	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1534	if (tmp->arch->archname == archname) /* same archetype */
1619	{	1535	tmp->destroy ();
1620	remove_ob (tmp);
1621	free_object (tmp);
1622	}
1623	}
1624		1536
1625	tmp1 = arch_to_object (archetype::find (arch_string));	1537	object *tmp = archetype::find (archname)->instance ();
1626		1538
1627	tmp1->x = op->x;	1539	tmp->x = op->x;
1628	tmp1->y = op->y;	1540	tmp->y = op->y;
		1541
1629	insert_ob_in_map (tmp1, op->map, op, 0);	1542	insert_ob_in_map (tmp, op->map, op, 0);
1630	}	1543	}
1631
1632	/*
1633	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1634	* is returned contains nr objects, and the remaining parts contains
1635	* the rest (or is removed and freed if that number is 0).
1636	* On failure, NULL is returned, and the reason put into the
1637	* global static errmsg array.
1638	*/
1639		1544
1640	object *	1545	object *
1641	get_split_ob (object *orig_ob, uint32 nr)	1546	object::insert_at (object *where, object *originator, int flags)
1642	{	1547	{
1643	object *	1548	if (where->env)
1644	newob;	1549	return where->env->insert (this);
1645	int	1550	else
1646	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1551	return where->map->insert (this, where->x, where->y, originator, flags);
1647
1648	if (orig_ob->nrof < nr)
1649	{
1650	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1651	return NULL;
1652	}
1653
1654	newob = object_create_clone (orig_ob);
1655
1656	if ((orig_ob->nrof -= nr) < 1)
1657	{
1658	if (!is_removed)
1659	remove_ob (orig_ob);
1660	free_object2 (orig_ob, 1);
1661	}
1662	else if (!is_removed)
1663	{
1664	if (orig_ob->env != NULL)
1665	sub_weight (orig_ob->env, orig_ob->weight * nr);
1666	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1667	{
1668	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1669	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1670	return NULL;
1671	}
1672	}
1673
1674	newob->nrof = nr;
1675
1676	return newob;
1677	}	1552	}
1678		1553
		1554	// check whether we can put this into the map, respect max_volume, max_items
		1555	bool
		1556	object::can_drop_at (maptile *m, int x, int y, object *originator)
		1557	{
		1558	mapspace &ms = m->at (x, y);
		1559
		1560	int items = ms.items ();
		1561
		1562	if (!items // testing !items ensures we can drop at least one item
		1563	|| (items < m->max_items
		1564	&& ms.volume () < m->max_volume))
		1565	return true;
		1566
		1567	if (originator && originator->is_player ())
		1568	originator->contr->failmsg (format (
		1569	"No matter how hard you try, you just cannot put the %s here H<Try to remove some items from the floor first.>",
		1570	query_name ()
		1571	));
		1572
		1573	return false;
		1574	}
		1575
1679	/*	1576	/*
1680	* decrease_ob_nr(object, number) decreases a specified number from	1577	* decrease(object, number) decreases a specified number from
1681	* the amount of an object. If the amount reaches 0, the object	1578	* the amount of an object. If the amount reaches 0, the object
1682	* is subsequently removed and freed.	1579	* is subsequently removed and freed.
1683	*	1580	*
1684	* Return value: 'op' if something is left, NULL if the amount reached 0	1581	* Return value: 'op' if something is left, NULL if the amount reached 0
1685	*/	1582	*/
		1583	bool
		1584	object::decrease (sint32 nr)
		1585	{
		1586	if (!nr)
		1587	return true;
1686		1588
		1589	nr = min (nr, nrof);
		1590
		1591	if (nrof > nr)
		1592	{
		1593	nrof -= nr;
		1594	adjust_weight (env, -weight * max (1, nr)); // carrying == 0
		1595
		1596	if (object *pl = visible_to ())
		1597	esrv_update_item (UPD_NROF, pl, this);
		1598
		1599	return true;
		1600	}
		1601	else
		1602	{
		1603	destroy ();
		1604	return false;
		1605	}
		1606	}
		1607
		1608	/*
		1609	* split(ob,nr) splits up ob into two parts. The part which
		1610	* is returned contains nr objects, and the remaining parts contains
		1611	* the rest (or is removed and returned if that number is 0).
		1612	* On failure, NULL is returned.
		1613	*/
1687	object *	1614	object *
1688	decrease_ob_nr (object *op, uint32 i)	1615	object::split (sint32 nr)
1689	{	1616	{
1690	object *tmp;	1617	int have = number_of ();
1691	player *pl;
1692		1618
1693	if (i == 0) /* objects with op->nrof require this check */	1619	if (have < nr)
1694	return op;	1620	return 0;
1695		1621	else if (have == nr)
1696	if (i > op->nrof)
1697	i = op->nrof;
1698
1699	if (QUERY_FLAG (op, FLAG_REMOVED))
1700	op->nrof -= i;
1701	else if (op->env != NULL)
1702	{	1622	{
1703	/* is this object in the players inventory, or sub container
1704	* therein?
1705	*/
1706	tmp = is_player_inv (op->env);
1707	/* nope. Is this a container the player has opened?
1708	* If so, set tmp to that player.
1709	* IMO, searching through all the players will mostly
1710	* likely be quicker than following op->env to the map,
1711	* and then searching the map for a player.
1712	*/
1713	if (!tmp)
1714	{
1715	for (pl = first_player; pl; pl = pl->next)
1716	if (pl->ob->container == op->env)
1717	break;
1718	if (pl)
1719	tmp = pl->ob;
1720	else
1721	tmp = NULL;
1722	}
1723
1724	if (i < op->nrof)
1725	{
1726	sub_weight (op->env, op->weight * i);
1727	op->nrof -= i;
1728	if (tmp)
1729	{
1730	esrv_send_item (tmp, op);
1731	}
1732	}
1733	else
1734	{
1735	remove_ob (op);	1623	remove ();
1736	op->nrof = 0;	1624	return this;
1737	if (tmp)
1738	{
1739	esrv_del_item (tmp->contr, op->count);
1740	}
1741	}
1742	}	1625	}
1743	else	1626	else
1744	{	1627	{
1745	object *above = op->above;	1628	decrease (nr);
1746		1629
1747	if (i < op->nrof)	1630	object *op = deep_clone ();
1748	op->nrof -= i;	1631	op->nrof = nr;
1749	else
1750	{
1751	remove_ob (op);
1752	op->nrof = 0;
1753	}
1754
1755	/* Since we just removed op, op->above is null */
1756	for (tmp = above; tmp != NULL; tmp = tmp->above)
1757	if (tmp->type == PLAYER)
1758	{
1759	if (op->nrof)
1760	esrv_send_item (tmp, op);
1761	else
1762	esrv_del_item (tmp->contr, op->count);
1763	}
1764	}
1765
1766	if (op->nrof)
1767	return op;	1632	return op;
1768	else
1769	{	1633	}
1770	free_object (op);	1634	}
		1635
		1636	object *
		1637	insert_ob_in_ob (object *op, object *where)
		1638	{
		1639	if (!where)
		1640	{
		1641	char *dump = dump_object (op);
		1642	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1643	free (dump);
1771	return NULL;	1644	return op;
1772	}
1773	}
1774
1775	/*
1776	* add_weight(object, weight) adds the specified weight to an object,
1777	* and also updates how much the environment(s) is/are carrying.
1778	*/
1779
1780	void
1781	add_weight (object *op, signed long weight)
1782	{
1783	while (op != NULL)
1784	{	1645	}
1785	if (op->type == CONTAINER)
1786	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1787		1646
1788	op->carrying += weight;	1647	if (where->head_ () != where)
1789	op = op->env;
1790	}	1648	{
1791	}	1649	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1650	where = where->head;
		1651	}
1792		1652
		1653	return where->insert (op);
		1654	}
		1655
1793	/*	1656	/*
1794	* insert_ob_in_ob(op,environment):	1657	* env->insert (op)
1795	* This function inserts the object op in the linked list	1658	* This function inserts the object op in the linked list
1796	* inside the object environment.	1659	* inside the object environment.
1797	*	1660	*
1798	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1799	* the inventory at the last position or next to other objects of the same
1800	* type.
1801	* Frank: Now sorted by type, archetype and magic!
1802	*
1803	* The function returns now pointer to inserted item, and return value can	1661	* The function returns now pointer to inserted item, and return value can
1804	* be != op, if items are merged. -Tero	1662	* be != op, if items are merged. -Tero
1805	*/	1663	*/
1806
1807	object *	1664	object *
1808	insert_ob_in_ob (object *op, object *where)	1665	object::insert (object *op)
1809	{	1666	{
1810	object *
1811	tmp, *
1812	otmp;
1813
1814	if (!QUERY_FLAG (op, FLAG_REMOVED))
1815	{
1816	dump_object (op);
1817	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", errmsg);
1818	return op;
1819	}
1820
1821	if (where == NULL)
1822	{
1823	dump_object (op);
1824	LOG (llevError, "Trying to put object in NULL.\n%s\n", errmsg);
1825	return op;
1826	}
1827
1828	if (where->head)
1829	{
1830	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1831	where = where->head;
1832	}
1833
1834	if (op->more)	1667	if (op->more)
1835	{	1668	{
1836	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1669	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1837	return op;	1670	return op;
1838	}	1671	}
1839		1672
1840	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1673	op->remove ();
1841	CLEAR_FLAG (op, FLAG_REMOVED);	1674
		1675	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1676
1842	if (op->nrof)	1677	if (op->nrof)
1843	{
1844	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1678	for (object *tmp = inv; tmp; tmp = tmp->below)
1845	if (CAN_MERGE (tmp, op))	1679	if (object::can_merge (tmp, op))
1846	{	1680	{
1847	/* return the original object and remove inserted object	1681	/* return the original object and remove inserted object
1848	(client needs the original object) */	1682	(client needs the original object) */
1849	tmp->nrof += op->nrof;	1683	tmp->nrof += op->nrof;
1850	/* Weight handling gets pretty funky. Since we are adding to	1684
1851	* tmp->nrof, we need to increase the weight.	1685	if (object *pl = tmp->visible_to ())
1852	*/	1686	esrv_update_item (UPD_NROF, pl, tmp);
1853	add_weight (where, op->weight * op->nrof);	1687
1854	SET_FLAG (op, FLAG_REMOVED);	1688	adjust_weight (this, op->total_weight ());
1855	free_object (op); /* free the inserted object */	1689
		1690	op->destroy ();
1856	op = tmp;	1691	op = tmp;
1857	remove_ob (op); /* and fix old object's links */	1692	goto inserted;
1858	CLEAR_FLAG (op, FLAG_REMOVED);
1859	break;
1860	}	1693	}
1861		1694
1862	/* I assume combined objects have no inventory	1695	op->owner = 0; // it's his/hers now. period.
1863	* We add the weight - this object could have just been removed
1864	* (if it was possible to merge). calling remove_ob will subtract
1865	* the weight, so we need to add it in again, since we actually do
1866	* the linking below
1867	*/
1868	add_weight (where, op->weight * op->nrof);
1869	}
1870	else
1871	add_weight (where, (op->weight + op->carrying));
1872
1873	otmp = is_player_inv (where);
1874	if (otmp && otmp->contr != NULL)
1875	{
1876	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1877	fix_player (otmp);
1878	}
1879
1880	op->map = NULL;	1696	op->map = 0;
1881	op->env = where;	1697	op->x = 0;
		1698	op->y = 0;
		1699
1882	op->above = NULL;	1700	op->above = 0;
1883	op->below = NULL;	1701	op->below = inv;
1884	op->x = 0, op->y = 0;	1702	op->env = this;
1885		1703
		1704	if (inv)
		1705	inv->above = op;
		1706
		1707	inv = op;
		1708
		1709	op->flag [FLAG_REMOVED] = 0;
		1710
		1711	if (object *pl = op->visible_to ())
		1712	esrv_send_item (pl, op);
		1713
		1714	adjust_weight (this, op->total_weight ());
		1715
		1716	inserted:
1886	/* reset the light list and los of the players on the map */	1717	/* reset the light list and los of the players on the map */
1887	if ((op->glow_radius != 0) && where->map)	1718	if (op->glow_radius && is_on_map ())
1888	{
1889	#ifdef DEBUG_LIGHTS
1890	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1891	#endif /* DEBUG_LIGHTS */
1892	if (MAP_DARKNESS (where->map))
1893	update_all_los (where->map, where->x, where->y);
1894	}	1719	{
1895		1720	update_stats ();
1896	/* Client has no idea of ordering so lets not bother ordering it here.	1721	update_all_los (map, x, y);
1897	* It sure simplifies this function...
1898	*/
1899	if (where->inv == NULL)
1900	where->inv = op;
1901	else
1902	{	1722	}
1903	op->below = where->inv;	1723	else if (is_player ())
1904	op->below->above = op;	1724	// if this is a player's inventory, update stats
1905	where->inv = op;	1725	contr->queue_stats_update ();
1906	}	1726
		1727	INVOKE_OBJECT (INSERT, this);
		1728
1907	return op;	1729	return op;
1908	}	1730	}
1909		1731
1910	/*	1732	/*
1911	* Checks if any objects has a move_type that matches objects	1733	* Checks if any objects has a move_type that matches objects
…		…
1925	*	1747	*
1926	* MSW 2001-07-08: Check all objects on space, not just those below	1748	* MSW 2001-07-08: Check all objects on space, not just those below
1927	* object being inserted. insert_ob_in_map may not put new objects	1749	* object being inserted. insert_ob_in_map may not put new objects
1928	* on top.	1750	* on top.
1929	*/	1751	*/
1930
1931	int	1752	int
1932	check_move_on (object *op, object *originator)	1753	check_move_on (object *op, object *originator)
1933	{	1754	{
		1755	if (QUERY_FLAG (op, FLAG_NO_APPLY))
		1756	return 0;
		1757
1934	object *tmp;	1758	object *tmp;
1935	maptile *m = op->map;	1759	maptile *m = op->map;
1936	int x = op->x, y = op->y;	1760	int x = op->x, y = op->y;
1937		1761
1938	MoveType move_on, move_slow, move_block;	1762	mapspace &ms = m->at (x, y);
1939		1763
1940	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1764	ms.update ();
1941	return 0;
1942		1765
1943	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1766	MoveType move_on = ms.move_on;
1944	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1767	MoveType move_slow = ms.move_slow;
1945	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1768	MoveType move_block = ms.move_block;
1946		1769
1947	/* if nothing on this space will slow op down or be applied,	1770	/* if nothing on this space will slow op down or be applied,
1948	* no need to do checking below. have to make sure move_type	1771	* no need to do checking below. have to make sure move_type
1949	* is set, as lots of objects don't have it set - we treat that	1772	* is set, as lots of objects don't have it set - we treat that
1950	* as walking.	1773	* as walking.
…		…
1961	return 0;	1784	return 0;
1962		1785
1963	/* The objects have to be checked from top to bottom.	1786	/* The objects have to be checked from top to bottom.
1964	* Hence, we first go to the top:	1787	* Hence, we first go to the top:
1965	*/	1788	*/
1966		1789	for (object *next, *tmp = ms.top; tmp; tmp = next)
1967	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1968	{
1969	/* Trim the search when we find the first other spell effect
1970	* this helps performance so that if a space has 50 spell objects,
1971	* we don't need to check all of them.
1972	*/
1973	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
1974	break;
1975	}	1790	{
		1791	next = tmp->below;
1976		1792
1977	for (; tmp; tmp = tmp->below)
1978	{
1979	if (tmp == op)	1793	if (tmp == op)
1980	continue; /* Can't apply yourself */	1794	continue; /* Can't apply yourself */
1981		1795
1982	/* Check to see if one of the movement types should be slowed down.	1796	/* Check to see if one of the movement types should be slowed down.
1983	* Second check makes sure that the movement types not being slowed	1797	* Second check makes sure that the movement types not being slowed
…		…
1988	if (!QUERY_FLAG (op, FLAG_WIZPASS))	1802	if (!QUERY_FLAG (op, FLAG_WIZPASS))
1989	{	1803	{
1990	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1804	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1991	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1805	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1992	{	1806	{
1993
1994	float
1995	diff = tmp->move_slow_penalty * FABS (op->speed);	1807	float diff = tmp->move_slow_penalty * fabs (op->speed);
1996		1808
1997	if (op->type == PLAYER)	1809	if (op->is_player ())
1998	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1810	if ((tmp->flag [FLAG_IS_HILLY ] && find_skill_by_number (op, SK_CLIMBING)) ||
1999	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1811	(tmp->flag [FLAG_IS_WOODED] && find_skill_by_number (op, SK_WOODSMAN)))
2000	diff /= 4.0;	1812	diff /= 4.0;
2001		1813
2002	op->speed_left -= diff;	1814	op->speed_left -= diff;
2003	}	1815	}
2004	}	1816	}
…		…
2027	/*	1839	/*
2028	* present_arch(arch, map, x, y) searches for any objects with	1840	* present_arch(arch, map, x, y) searches for any objects with
2029	* a matching archetype at the given map and coordinates.	1841	* a matching archetype at the given map and coordinates.
2030	* The first matching object is returned, or NULL if none.	1842	* The first matching object is returned, or NULL if none.
2031	*/	1843	*/
2032
2033	object *	1844	object *
2034	present_arch (const archetype *at, maptile *m, int x, int y)	1845	present_arch (const archetype *at, maptile *m, int x, int y)
2035	{	1846	{
2036	object *
2037	tmp;
2038
2039	if (m == NULL || out_of_map (m, x, y))	1847	if (!m || out_of_map (m, x, y))
2040	{	1848	{
2041	LOG (llevError, "Present_arch called outside map.\n");	1849	LOG (llevError, "Present_arch called outside map.\n");
2042	return NULL;	1850	return NULL;
2043	}	1851	}
2044	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1852
2045	if (tmp->arch == at)	1853	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1854	if (tmp->arch->archname == at->archname)
2046	return tmp;	1855	return tmp;
		1856
2047	return NULL;	1857	return NULL;
2048	}	1858	}
2049		1859
2050	/*	1860	/*
2051	* present(type, map, x, y) searches for any objects with	1861	* present(type, map, x, y) searches for any objects with
2052	* a matching type variable at the given map and coordinates.	1862	* a matching type variable at the given map and coordinates.
2053	* The first matching object is returned, or NULL if none.	1863	* The first matching object is returned, or NULL if none.
2054	*/	1864	*/
2055
2056	object *	1865	object *
2057	present (unsigned char type, maptile *m, int x, int y)	1866	present (unsigned char type, maptile *m, int x, int y)
2058	{	1867	{
2059	object *
2060	tmp;
2061
2062	if (out_of_map (m, x, y))	1868	if (out_of_map (m, x, y))
2063	{	1869	{
2064	LOG (llevError, "Present called outside map.\n");	1870	LOG (llevError, "Present called outside map.\n");
2065	return NULL;	1871	return NULL;
2066	}	1872	}
2067	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1873
		1874	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2068	if (tmp->type == type)	1875	if (tmp->type == type)
2069	return tmp;	1876	return tmp;
		1877
2070	return NULL;	1878	return NULL;
2071	}	1879	}
2072		1880
2073	/*	1881	/*
2074	* present_in_ob(type, object) searches for any objects with	1882	* present_in_ob(type, object) searches for any objects with
2075	* a matching type variable in the inventory of the given object.	1883	* a matching type variable in the inventory of the given object.
2076	* The first matching object is returned, or NULL if none.	1884	* The first matching object is returned, or NULL if none.
2077	*/	1885	*/
2078
2079	object *	1886	object *
2080	present_in_ob (unsigned char type, const object *op)	1887	present_in_ob (unsigned char type, const object *op)
2081	{	1888	{
2082	object *
2083	tmp;
2084
2085	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1889	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2086	if (tmp->type == type)	1890	if (tmp->type == type)
2087	return tmp;	1891	return tmp;
		1892
2088	return NULL;	1893	return NULL;
2089	}	1894	}
2090		1895
2091	/*	1896	/*
2092	* present_in_ob (type, str, object) searches for any objects with	1897	* present_in_ob (type, str, object) searches for any objects with
…		…
2100	* str is the string to match against. Note that we match against	1905	* str is the string to match against. Note that we match against
2101	* the object name, not the archetype name. this is so that the	1906	* the object name, not the archetype name. this is so that the
2102	* spell code can use one object type (force), but change it's name	1907	* spell code can use one object type (force), but change it's name
2103	* to be unique.	1908	* to be unique.
2104	*/	1909	*/
2105
2106	object *	1910	object *
2107	present_in_ob_by_name (int type, const char *str, const object *op)	1911	present_in_ob_by_name (int type, const char *str, const object *op)
2108	{	1912	{
2109	object *
2110	tmp;
2111
2112	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1913	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2113	{
2114	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1914	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2115	return tmp;	1915	return tmp;
2116	}	1916
2117	return NULL;	1917	return 0;
2118	}	1918	}
2119		1919
2120	/*	1920	/*
2121	* present_arch_in_ob(archetype, object) searches for any objects with	1921	* present_arch_in_ob(archetype, object) searches for any objects with
2122	* a matching archetype in the inventory of the given object.	1922	* a matching archetype in the inventory of the given object.
2123	* The first matching object is returned, or NULL if none.	1923	* The first matching object is returned, or NULL if none.
2124	*/	1924	*/
2125
2126	object *	1925	object *
2127	present_arch_in_ob (const archetype *at, const object *op)	1926	present_arch_in_ob (const archetype *at, const object *op)
2128	{	1927	{
2129	object *
2130	tmp;
2131
2132	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1928	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2133	if (tmp->arch == at)	1929	if (tmp->arch->archname == at->archname)
2134	return tmp;	1930	return tmp;
		1931
2135	return NULL;	1932	return NULL;
2136	}	1933	}
2137		1934
2138	/*	1935	/*
2139	* activate recursively a flag on an object inventory	1936	* activate recursively a flag on an object inventory
2140	*/	1937	*/
2141	void	1938	void
2142	flag_inv (object *op, int flag)	1939	flag_inv (object *op, int flag)
2143	{	1940	{
2144	object *
2145	tmp;
2146
2147	if (op->inv)
2148	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1941	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2149	{	1942	{
2150	SET_FLAG (tmp, flag);	1943	SET_FLAG (tmp, flag);
2151	flag_inv (tmp, flag);	1944	flag_inv (tmp, flag);
2152	}	1945	}
2153	} /*	1946	}
		1947
		1948	/*
2154	* desactivate recursively a flag on an object inventory	1949	* deactivate recursively a flag on an object inventory
2155	*/	1950	*/
2156	void	1951	void
2157	unflag_inv (object *op, int flag)	1952	unflag_inv (object *op, int flag)
2158	{	1953	{
2159	object *
2160	tmp;
2161
2162	if (op->inv)
2163	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1954	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2164	{	1955	{
2165	CLEAR_FLAG (tmp, flag);	1956	CLEAR_FLAG (tmp, flag);
2166	unflag_inv (tmp, flag);	1957	unflag_inv (tmp, flag);
2167	}	1958	}
2168	}
2169
2170	/*
2171	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2172	* all it's inventory (recursively).
2173	* If checksums are used, a player will get set_cheat called for
2174	* him/her-self and all object carried by a call to this function.
2175	*/
2176
2177	void
2178	set_cheat (object *op)
2179	{
2180	SET_FLAG (op, FLAG_WAS_WIZ);
2181	flag_inv (op, FLAG_WAS_WIZ);
2182	}	1959	}
2183		1960
2184	/*	1961	/*
2185	* find_free_spot(object, map, x, y, start, stop) will search for	1962	* find_free_spot(object, map, x, y, start, stop) will search for
2186	* a spot at the given map and coordinates which will be able to contain	1963	* a spot at the given map and coordinates which will be able to contain
…		…
2188	* to search (see the freearr_x/y[] definition).	1965	* to search (see the freearr_x/y[] definition).
2189	* It returns a random choice among the alternatives found.	1966	* It returns a random choice among the alternatives found.
2190	* start and stop are where to start relative to the free_arr array (1,9	1967	* start and stop are where to start relative to the free_arr array (1,9
2191	* does all 4 immediate directions). This returns the index into the	1968	* does all 4 immediate directions). This returns the index into the
2192	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1969	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2193	* Note - this only checks to see if there is space for the head of the
2194	* object - if it is a multispace object, this should be called for all
2195	* pieces.
2196	* Note2: This function does correctly handle tiled maps, but does not	1970	* Note: This function does correctly handle tiled maps, but does not
2197	* inform the caller. However, insert_ob_in_map will update as	1971	* inform the caller. However, insert_ob_in_map will update as
2198	* necessary, so the caller shouldn't need to do any special work.	1972	* necessary, so the caller shouldn't need to do any special work.
2199	* Note - updated to take an object instead of archetype - this is necessary	1973	* Note - updated to take an object instead of archetype - this is necessary
2200	* because arch_blocked (now ob_blocked) needs to know the movement type	1974	* because arch_blocked (now ob_blocked) needs to know the movement type
2201	* to know if the space in question will block the object. We can't use	1975	* to know if the space in question will block the object. We can't use
2202	* the archetype because that isn't correct if the monster has been	1976	* the archetype because that isn't correct if the monster has been
2203	* customized, changed states, etc.	1977	* customized, changed states, etc.
2204	*/	1978	*/
2205
2206	int	1979	int
2207	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	1980	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2208	{	1981	{
2209	int
2210	i,
2211	index = 0, flag;
2212	static int
2213	altern[SIZEOFFREE];	1982	int altern[SIZEOFFREE];
		1983	int index = 0, flag;
2214		1984
2215	for (i = start; i < stop; i++)	1985	for (int i = start; i < stop; i++)
2216	{	1986	{
2217	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1987	mapxy pos (m, x, y); pos.move (i);
2218	if (!flag)	1988
		1989	if (!pos.normalise ())
		1990	continue;
		1991
		1992	mapspace &ms = *pos;
		1993
		1994	if (ms.flags () & P_IS_ALIVE)
		1995	continue;
		1996
		1997	/* However, often
		1998	* ob doesn't have any move type (when used to place exits)
		1999	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		2000	*/
		2001	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		2002	{
2219	altern[index++] = i;	2003	altern [index++] = i;
		2004	continue;
		2005	}
2220		2006
2221	/* Basically, if we find a wall on a space, we cut down the search size.	2007	/* Basically, if we find a wall on a space, we cut down the search size.
2222	* In this way, we won't return spaces that are on another side of a wall.	2008	* In this way, we won't return spaces that are on another side of a wall.
2223	* This mostly work, but it cuts down the search size in all directions -	2009	* This mostly work, but it cuts down the search size in all directions -
2224	* if the space being examined only has a wall to the north and empty	2010	* if the space being examined only has a wall to the north and empty
2225	* spaces in all the other directions, this will reduce the search space	2011	* spaces in all the other directions, this will reduce the search space
2226	* to only the spaces immediately surrounding the target area, and	2012	* to only the spaces immediately surrounding the target area, and
2227	* won't look 2 spaces south of the target space.	2013	* won't look 2 spaces south of the target space.
2228	*/	2014	*/
2229	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	2015	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		2016	{
2230	stop = maxfree[i];	2017	stop = maxfree[i];
		2018	continue;
		2019	}
		2020
		2021	/* Note it is intentional that we check ob - the movement type of the
		2022	* head of the object should correspond for the entire object.
		2023	*/
		2024	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		2025	continue;
		2026
		2027	if (ob->blocked (pos.m, pos.x, pos.y))
		2028	continue;
		2029
		2030	altern [index++] = i;
2231	}	2031	}
		2032
2232	if (!index)	2033	if (!index)
2233	return -1;	2034	return -1;
		2035
2234	return altern[RANDOM () % index];	2036	return altern [rndm (index)];
2235	}	2037	}
2236		2038
2237	/*	2039	/*
2238	* find_first_free_spot(archetype, maptile, x, y) works like	2040	* find_first_free_spot(archetype, maptile, x, y) works like
2239	* find_free_spot(), but it will search max number of squares.	2041	* find_free_spot(), but it will search max number of squares.
2240	* But it will return the first available spot, not a random choice.	2042	* But it will return the first available spot, not a random choice.
2241	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2043	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2242	*/	2044	*/
2243
2244	int	2045	int
2245	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2046	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2246	{	2047	{
2247	int
2248	i;
2249
2250	for (i = 0; i < SIZEOFFREE; i++)	2048	for (int i = 0; i < SIZEOFFREE; i++)
2251	{
2252	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2049	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2253	return i;	2050	return i;
2254	}	2051
2255	return -1;	2052	return -1;
2256	}	2053	}
2257		2054
2258	/*	2055	/*
2259	* The function permute(arr, begin, end) randomly reorders the array	2056	* The function permute(arr, begin, end) randomly reorders the array
2260	* arr[begin..end-1].	2057	* arr[begin..end-1].
		2058	* now uses a fisher-yates shuffle, old permute was broken
2261	*/	2059	*/
2262	static void	2060	static void
2263	permute (int *arr, int begin, int end)	2061	permute (int *arr, int begin, int end)
2264	{	2062	{
2265	int	2063	arr += begin;
2266	i,
2267	j,
2268	tmp,
2269	len;
2270
2271	len = end - begin;	2064	end -= begin;
2272	for (i = begin; i < end; i++)
2273	{
2274	j = begin + RANDOM () % len;
2275		2065
2276	tmp = arr[i];	2066	while (--end)
2277	arr[i] = arr[j];	2067	swap (arr [end], arr [rndm (end + 1)]);
2278	arr[j] = tmp;
2279	}
2280	}	2068	}
2281		2069
2282	/* new function to make monster searching more efficient, and effective!	2070	/* new function to make monster searching more efficient, and effective!
2283	* This basically returns a randomized array (in the passed pointer) of	2071	* This basically returns a randomized array (in the passed pointer) of
2284	* the spaces to find monsters. In this way, it won't always look for	2072	* the spaces to find monsters. In this way, it won't always look for
…		…
2287	* the 3x3 area will be searched, just not in a predictable order.	2075	* the 3x3 area will be searched, just not in a predictable order.
2288	*/	2076	*/
2289	void	2077	void
2290	get_search_arr (int *search_arr)	2078	get_search_arr (int *search_arr)
2291	{	2079	{
2292	int	2080	int i;
2293	i;
2294		2081
2295	for (i = 0; i < SIZEOFFREE; i++)	2082	for (i = 0; i < SIZEOFFREE; i++)
2296	{
2297	search_arr[i] = i;	2083	search_arr[i] = i;
2298	}
2299		2084
2300	permute (search_arr, 1, SIZEOFFREE1 + 1);	2085	permute (search_arr, 1, SIZEOFFREE1 + 1);
2301	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2086	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2302	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2087	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2303	}	2088	}
…		…
2312	* Perhaps incorrectly, but I'm making the assumption that exclude	2097	* Perhaps incorrectly, but I'm making the assumption that exclude
2313	* is actually want is going to try and move there. We need this info	2098	* is actually want is going to try and move there. We need this info
2314	* because we have to know what movement the thing looking to move	2099	* because we have to know what movement the thing looking to move
2315	* there is capable of.	2100	* there is capable of.
2316	*/	2101	*/
2317
2318	int	2102	int
2319	find_dir (maptile *m, int x, int y, object *exclude)	2103	find_dir (maptile *m, int x, int y, object *exclude)
2320	{	2104	{
2321	int
2322	i,
2323	max = SIZEOFFREE, mflags;	2105	int max = SIZEOFFREE, mflags;
2324
2325	sint16 nx, ny;
2326	object *
2327	tmp;
2328	maptile *
2329	mp;
2330
2331	MoveType blocked, move_type;	2106	MoveType move_type;
2332		2107
2333	if (exclude && exclude->head)	2108	if (exclude && exclude->head_ () != exclude)
2334	{	2109	{
2335	exclude = exclude->head;	2110	exclude = exclude->head;
2336	move_type = exclude->move_type;	2111	move_type = exclude->move_type;
2337	}	2112	}
2338	else	2113	else
2339	{	2114	{
2340	/* If we don't have anything, presume it can use all movement types. */	2115	/* If we don't have anything, presume it can use all movement types. */
2341	move_type = MOVE_ALL;	2116	move_type = MOVE_ALL;
2342	}	2117	}
2343		2118
2344	for (i = 1; i < max; i++)	2119	for (int i = 1; i < max; i++)
2345	{	2120	{
2346	mp = m;	2121	mapxy pos (m, x, y);
2347	nx = x + freearr_x[i];	2122	pos.move (i);
2348	ny = y + freearr_y[i];
2349		2123
2350	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2124	if (!pos.normalise ())
2351	if (mflags & P_OUT_OF_MAP)
2352	{
2353	max = maxfree[i];	2125	max = maxfree[i];
2354	}
2355	else	2126	else
2356	{	2127	{
2357	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2128	mapspace &ms = *pos;
2358		2129
2359	if ((move_type & blocked) == move_type)	2130	if ((move_type & ms.move_block) == move_type)
		2131	max = maxfree [i];
		2132	else if (ms.flags () & P_IS_ALIVE)
2360	{	2133	{
2361	max = maxfree[i];	2134	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
2362	}	2135	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2363	else if (mflags & P_IS_ALIVE)	2136	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2364	{
2365	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2366	{
2367	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2368	{
2369	break;
2370	}
2371	}
2372	if (tmp)
2373	{
2374	return freedir[i];	2137	return freedir [i];
2375	}
2376	}	2138	}
2377	}	2139	}
2378	}	2140	}
		2141
2379	return 0;	2142	return 0;
2380	}	2143	}
2381		2144
2382	/*	2145	/*
2383	* distance(object 1, object 2) will return the square of the	2146	* distance(object 1, object 2) will return the square of the
2384	* distance between the two given objects.	2147	* distance between the two given objects.
2385	*/	2148	*/
2386
2387	int	2149	int
2388	distance (const object *ob1, const object *ob2)	2150	distance (const object *ob1, const object *ob2)
2389	{	2151	{
2390	int
2391	i;
2392
2393	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2152	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2394	return i;
2395	}	2153	}
2396		2154
2397	/*	2155	/*
2398	* find_dir_2(delta-x,delta-y) will return a direction in which	2156	* find_dir_2(delta-x,delta-y) will return a direction in which
2399	* an object which has subtracted the x and y coordinates of another	2157	* an object which has subtracted the x and y coordinates of another
2400	* object, needs to travel toward it.	2158	* object, needs to travel toward it.
2401	*/	2159	*/
2402
2403	int	2160	int
2404	find_dir_2 (int x, int y)	2161	find_dir_2 (int x, int y)
2405	{	2162	{
2406	int	2163	int q;
2407	q;
2408		2164
2409	if (y)	2165	if (y)
2410	q = x * 100 / y;	2166	q = x * 100 / y;
2411	else if (x)	2167	else if (x)
2412	q = -300 * x;	2168	q = -300 * x;
…		…
2437		2193
2438	return 3;	2194	return 3;
2439	}	2195	}
2440		2196
2441	/*	2197	/*
2442	* absdir(int): Returns a number between 1 and 8, which represent
2443	* the "absolute" direction of a number (it actually takes care of
2444	* "overflow" in previous calculations of a direction).
2445	*/
2446
2447	int
2448	absdir (int d)
2449	{
2450	while (d < 1)
2451	d += 8;
2452	while (d > 8)
2453	d -= 8;
2454	return d;
2455	}
2456
2457	/*
2458	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2198	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2459	* between two directions (which are expected to be absolute (see absdir())	2199	* between two directions (which are expected to be absolute (see absdir())
2460	*/	2200	*/
2461
2462	int	2201	int
2463	dirdiff (int dir1, int dir2)	2202	dirdiff (int dir1, int dir2)
2464	{	2203	{
2465	int	2204	int d;
2466	d;
2467		2205
2468	d = abs (dir1 - dir2);	2206	d = abs (dir1 - dir2);
2469	if (d > 4)	2207	if (d > 4)
2470	d = 8 - d;	2208	d = 8 - d;
		2209
2471	return d;	2210	return d;
2472	}	2211	}
2473		2212
2474	/* peterm:	2213	/* peterm:
2475	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2214	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2478	* This basically means that if direction is 15, then it could either go	2217	* This basically means that if direction is 15, then it could either go
2479	* direction 4, 14, or 16 to get back to where we are.	2218	* direction 4, 14, or 16 to get back to where we are.
2480	* Moved from spell_util.c to object.c with the other related direction	2219	* Moved from spell_util.c to object.c with the other related direction
2481	* functions.	2220	* functions.
2482	*/	2221	*/
2483
2484	int
2485	reduction_dir[SIZEOFFREE][3] = {	2222	static const int reduction_dir[SIZEOFFREE][3] = {
2486	{0, 0, 0}, /* 0 */	2223	{0, 0, 0}, /* 0 */
2487	{0, 0, 0}, /* 1 */	2224	{0, 0, 0}, /* 1 */
2488	{0, 0, 0}, /* 2 */	2225	{0, 0, 0}, /* 2 */
2489	{0, 0, 0}, /* 3 */	2226	{0, 0, 0}, /* 3 */
2490	{0, 0, 0}, /* 4 */	2227	{0, 0, 0}, /* 4 */
…		…
2538	* find a path to that monster that we found. If not,	2275	* find a path to that monster that we found. If not,
2539	* we don't bother going toward it. Returns 1 if we	2276	* we don't bother going toward it. Returns 1 if we
2540	* can see a direct way to get it	2277	* can see a direct way to get it
2541	* Modified to be map tile aware -.MSW	2278	* Modified to be map tile aware -.MSW
2542	*/	2279	*/
2543
2544
2545	int	2280	int
2546	can_see_monsterP (maptile *m, int x, int y, int dir)	2281	can_see_monsterP (maptile *m, int x, int y, int dir)
2547	{	2282	{
2548	sint16 dx, dy;	2283	sint16 dx, dy;
2549	int
2550	mflags;	2284	int mflags;
2551		2285
2552	if (dir < 0)	2286	if (dir < 0)
2553	return 0; /* exit condition: invalid direction */	2287	return 0; /* exit condition: invalid direction */
2554		2288
2555	dx = x + freearr_x[dir];	2289	dx = x + freearr_x[dir];
…		…
2568	return 0;	2302	return 0;
2569		2303
2570	/* yes, can see. */	2304	/* yes, can see. */
2571	if (dir < 9)	2305	if (dir < 9)
2572	return 1;	2306	return 1;
		2307
2573	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2308	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2574	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2309	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2310	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2575	}	2311	}
2576
2577
2578		2312
2579	/*	2313	/*
2580	* can_pick(picker, item): finds out if an object is possible to be	2314	* can_pick(picker, item): finds out if an object is possible to be
2581	* picked up by the picker. Returnes 1 if it can be	2315	* picked up by the picker. Returnes 1 if it can be
2582	* picked up, otherwise 0.	2316	* picked up, otherwise 0.
…		…
2584	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2318	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2585	* core dumps if they do.	2319	* core dumps if they do.
2586	*	2320	*
2587	* Add a check so we can't pick up invisible objects (0.93.8)	2321	* Add a check so we can't pick up invisible objects (0.93.8)
2588	*/	2322	*/
2589
2590	int	2323	int
2591	can_pick (const object *who, const object *item)	2324	can_pick (const object *who, const object *item)
2592	{	2325	{
2593	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2326	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2594	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2327	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2595	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2328	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2596	}	2329	}
2597
2598		2330
2599	/*	2331	/*
2600	* create clone from object to another	2332	* create clone from object to another
2601	*/	2333	*/
2602	object *	2334	object *
2603	object_create_clone (object *asrc)	2335	object::deep_clone ()
2604	{	2336	{
2605	object *	2337	assert (("deep_clone called on non-head object", is_head ()));
2606	dst = NULL, *tmp, *src, *part, *prev, *item;
2607		2338
2608	if (!asrc)	2339	object *dst = clone ();
2609	return NULL;
2610	src = asrc;
2611	if (src->head)
2612	src = src->head;
2613		2340
2614	prev = NULL;	2341	object *prev = dst;
2615	for (part = src; part; part = part->more)	2342	for (object *part = this->more; part; part = part->more)
2616	{	2343	{
2617	tmp = get_object ();	2344	object *tmp = part->clone ();
2618	copy_object (part, tmp);
2619	tmp->x -= src->x;
2620	tmp->y -= src->y;
2621	if (!part->head)
2622	{
2623	dst = tmp;
2624	tmp->head = NULL;
2625	}
2626	else
2627	{
2628	tmp->head = dst;	2345	tmp->head = dst;
2629	}
2630	tmp->more = NULL;
2631	if (prev)
2632	prev->more = tmp;	2346	prev->more = tmp;
2633	prev = tmp;	2347	prev = tmp;
2634	}	2348	}
2635		2349
2636	for (item = src->inv; item; item = item->below)	2350	for (object *item = inv; item; item = item->below)
2637	insert_ob_in_ob (object_create_clone (item), dst);	2351	insert_ob_in_ob (item->deep_clone (), dst);
2638		2352
2639	return dst;	2353	return dst;
2640	}
2641
2642	/* GROS - Creates an object using a string representing its content. */
2643	/* Basically, we save the content of the string to a temp file, then call */
2644	/* load_object on it. I admit it is a highly inefficient way to make things, */
2645	/* but it was simple to make and allows reusing the load_object function. */
2646	/* Remember not to use load_object_str in a time-critical situation. */
2647	/* Also remember that multiparts objects are not supported for now. */
2648
2649	object *
2650	load_object_str (const char *obstr)
2651	{
2652	object *op;
2653	char filename[MAX_BUF];
2654
2655	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2656
2657	FILE *tempfile = fopen (filename, "w");
2658
2659	if (tempfile == NULL)
2660	{
2661	LOG (llevError, "Error - Unable to access load object temp file\n");
2662	return NULL;
2663	}
2664
2665	fprintf (tempfile, obstr);
2666	fclose (tempfile);
2667
2668	op = get_object ();
2669
2670	object_thawer thawer (filename);
2671
2672	if (thawer)
2673	load_object (thawer, op, 0);
2674
2675	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2676	CLEAR_FLAG (op, FLAG_REMOVED);
2677
2678	return op;
2679	}	2354	}
2680		2355
2681	/* This returns the first object in who's inventory that	2356	/* This returns the first object in who's inventory that
2682	* has the same type and subtype match.	2357	* has the same type and subtype match.
2683	* returns NULL if no match.	2358	* returns NULL if no match.
2684	*/	2359	*/
2685	object *	2360	object *
2686	find_obj_by_type_subtype (const object *who, int type, int subtype)	2361	find_obj_by_type_subtype (const object *who, int type, int subtype)
2687	{	2362	{
2688	object *tmp;
2689
2690	for (tmp = who->inv; tmp; tmp = tmp->below)	2363	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2691	if (tmp->type == type && tmp->subtype == subtype)	2364	if (tmp->type == type && tmp->subtype == subtype)
2692	return tmp;	2365	return tmp;
2693		2366
2694	return NULL;
2695	}
2696
2697	/* If ob has a field named key, return the link from the list,
2698	* otherwise return NULL.
2699	*
2700	* key must be a passed in shared string - otherwise, this won't
2701	* do the desired thing.
2702	*/
2703	key_value *
2704	get_ob_key_link (const object *ob, const char *key)
2705	{
2706	key_value *link;
2707
2708	for (link = ob->key_values; link != NULL; link = link->next)
2709	if (link->key == key)
2710	return link;
2711
2712	return NULL;
2713	}
2714
2715	/*
2716	* Returns the value of op has an extra_field for key, or NULL.
2717	*
2718	* The argument doesn't need to be a shared string.
2719	*
2720	* The returned string is shared.
2721	*/
2722	const char *
2723	get_ob_key_value (const object *op, const char *const key)
2724	{
2725	key_value *link;
2726	shstr_cmp canonical_key (key);
2727
2728	if (!canonical_key)
2729	{
2730	/* 1. There being a field named key on any object
2731	* implies there'd be a shared string to find.
2732	* 2. Since there isn't, no object has this field.
2733	* 3. Therefore, *this* object doesn't have this field.
2734	*/
2735	return 0;
2736	}
2737
2738	/* This is copied from get_ob_key_link() above -
2739	* only 4 lines, and saves the function call overhead.
2740	*/
2741	for (link = op->key_values; link; link = link->next)
2742	if (link->key == canonical_key)
2743	return link->value;
2744
2745	return 0;	2367	return 0;
2746	}	2368	}
2747		2369
2748		2370	shstr_tmp
2749	/*	2371	object::kv_get (shstr_tmp key) const
2750	* Updates the canonical_key in op to value.
2751	*
2752	* canonical_key is a shared string (value doesn't have to be).
2753	*
2754	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2755	* keys.
2756	*
2757	* Returns TRUE on success.
2758	*/
2759	int
2760	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2761	{	2372	{
2762	key_value *	2373	for (key_value *kv = key_values; kv; kv = kv->next)
2763	field = NULL, *last = NULL;	2374	if (kv->key == key)
		2375	return kv->value;
2764		2376
2765	for (field = op->key_values; field != NULL; field = field->next)	2377	return shstr ();
2766	{	2378	}
2767	if (field->key != canonical_key)	2379
		2380	void
		2381	object::kv_set (shstr_tmp key, shstr_tmp value)
		2382	{
		2383	for (key_value *kv = key_values; kv; kv = kv->next)
		2384	if (kv->key == key)
2768	{	2385	{
2769	last = field;	2386	kv->value = value;
2770	continue;	2387	return;
2771	}	2388	}
2772		2389
2773	if (value)	2390	key_value *kv = new key_value;
2774	field->value = value;	2391
2775	else	2392	kv->next = key_values;
		2393	kv->key = key;
		2394	kv->value = value;
		2395
		2396	key_values = kv;
		2397	}
		2398
		2399	void
		2400	object::kv_del (shstr_tmp key)
		2401	{
		2402	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2403	if ((*kvp)->key == key)
2776	{	2404	{
2777	/* Basically, if the archetype has this key set,	2405	key_value *kv = *kvp;
2778	* we need to store the null value so when we save	2406	*kvp = (*kvp)->next;
2779	* it, we save the empty value so that when we load,	2407	delete kv;
2780	* we get this value back again.	2408	return;
2781	*/
2782	if (get_ob_key_link (&op->arch->clone, canonical_key))
2783	field->value = 0;
2784	else
2785	{
2786	if (last)
2787	last->next = field->next;
2788	else
2789	op->key_values = field->next;
2790
2791	delete field;
2792	}
2793	}	2409	}
2794	return TRUE;
2795	}
2796	/* IF we get here, key doesn't exist */
2797
2798	/* No field, we'll have to add it. */
2799
2800	if (!add_key)
2801	{
2802	return FALSE;
2803	}
2804	/* There isn't any good reason to store a null
2805	* value in the key/value list. If the archetype has
2806	* this key, then we should also have it, so shouldn't
2807	* be here. If user wants to store empty strings,
2808	* should pass in ""
2809	*/
2810	if (value == NULL)
2811	return TRUE;
2812
2813	field = new key_value;
2814
2815	field->key = canonical_key;
2816	field->value = value;
2817	/* Usual prepend-addition. */
2818	field->next = op->key_values;
2819	op->key_values = field;
2820
2821	return TRUE;
2822	}
2823
2824	/*
2825	* Updates the key in op to value.
2826	*
2827	* If add_key is FALSE, this will only update existing keys,
2828	* and not add new ones.
2829	* In general, should be little reason FALSE is ever passed in for add_key
2830	*
2831	* Returns TRUE on success.
2832	*/
2833	int
2834	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2835	{
2836	shstr key_ (key);
2837
2838	return set_ob_key_value_s (op, key_, value, add_key);
2839	}	2410	}
2840		2411
2841	object::depth_iterator::depth_iterator (object *container)	2412	object::depth_iterator::depth_iterator (object *container)
2842	: iterator_base (container)	2413	: iterator_base (container)
2843	{	2414	{
…		…
2857	}	2428	}
2858	else	2429	else
2859	item = item->env;	2430	item = item->env;
2860	}	2431	}
2861		2432
		2433	const char *
		2434	object::flag_desc (char *desc, int len) const
		2435	{
		2436	char *p = desc;
		2437	bool first = true;
		2438
		2439	*p = 0;
		2440
		2441	for (int i = 0; i < NUM_FLAGS; i++)
		2442	{
		2443	if (len <= 10) // magic constant!
		2444	{
		2445	snprintf (p, len, ",...");
		2446	break;
		2447	}
		2448
		2449	if (flag [i])
		2450	{
		2451	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2452	len -= cnt;
		2453	p += cnt;
		2454	first = false;
		2455	}
		2456	}
		2457
		2458	return desc;
		2459	}
		2460
2862	// return a suitable string describing an objetc in enough detail to find it	2461	// return a suitable string describing an object in enough detail to find it
2863	const char *	2462	const char *
2864	object::debug_desc (char *info) const	2463	object::debug_desc (char *info) const
2865	{	2464	{
		2465	char flagdesc[512];
2866	char info2[256 * 3];	2466	char info2[256 * 4];
2867	char *p = info;	2467	char *p = info;
2868		2468
2869	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2469	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2870	count,	2470	count,
		2471	uuid.c_str (),
2871	&name,	2472	&name,
2872	title ? " " : "",	2473	title ? ",title:\"" : "",
2873	title ? (const char *)title : "");	2474	title ? (const char *)title : "",
		2475	title ? "\"" : "",
		2476	flag_desc (flagdesc, 512), type);
2874		2477
2875	if (env)	2478	if (!flag[FLAG_REMOVED] && env)
2876	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2479	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2877		2480
2878	if (map)	2481	if (map)
2879	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2482	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2880		2483
2881	return info;	2484	return info;
2882	}	2485	}
2883		2486
2884	const char *	2487	const char *
2885	object::debug_desc () const	2488	object::debug_desc () const
2886	{	2489	{
2887	static char info[256 * 3];	2490	static char info[3][256 * 4];
		2491	static int info_idx;
		2492
2888	return debug_desc (info);	2493	return debug_desc (info [++info_idx % 3]);
2889	}	2494	}
2890		2495
		2496	struct region *
		2497	object::region () const
		2498	{
		2499	return map ? map->region (x, y)
		2500	: region::default_region ();
		2501	}
		2502
		2503	void
		2504	object::open_container (object *new_container)
		2505	{
		2506	if (container == new_container)
		2507	return;
		2508
		2509	object *old_container = container;
		2510
		2511	if (old_container)
		2512	{
		2513	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2514	return;
		2515
		2516	#if 0
		2517	// remove the "Close old_container" object.
		2518	if (object *closer = old_container->inv)
		2519	if (closer->type == CLOSE_CON)
		2520	closer->destroy ();
		2521	#endif
		2522
		2523	// make sure the container is available
		2524	esrv_send_item (this, old_container);
		2525
		2526	old_container->flag [FLAG_APPLIED] = false;
		2527	container = 0;
		2528
		2529	// client needs item update to make it work, client bug requires this to be separate
		2530	esrv_update_item (UPD_FLAGS, this, old_container);
		2531
		2532	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", old_container->query_name ());
		2533	play_sound (sound_find ("chest_close"));
		2534	}
		2535
		2536	if (new_container)
		2537	{
		2538	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2539	return;
		2540
		2541	// TODO: this does not seem to serve any purpose anymore?
		2542	#if 0
		2543	// insert the "Close Container" object.
		2544	if (archetype *closer = new_container->other_arch)
		2545	{
		2546	object *closer = new_container->other_arch->instance ();
		2547	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2548	new_container->insert (closer);
		2549	}
		2550	#endif
		2551
		2552	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", new_container->query_name ());
		2553
		2554	// make sure the container is available, client bug requires this to be separate
		2555	esrv_send_item (this, new_container);
		2556
		2557	new_container->flag [FLAG_APPLIED] = true;
		2558	container = new_container;
		2559
		2560	// client needs flag change
		2561	esrv_update_item (UPD_FLAGS, this, new_container);
		2562	esrv_send_inventory (this, new_container);
		2563	play_sound (sound_find ("chest_open"));
		2564	}
		2565	// else if (!old_container->env && contr && contr->ns)
		2566	// contr->ns->floorbox_reset ();
		2567	}
		2568
		2569	object *
		2570	object::force_find (shstr_tmp name)
		2571	{
		2572	/* cycle through his inventory to look for the MARK we want to
		2573	* place
		2574	*/
		2575	for (object *tmp = inv; tmp; tmp = tmp->below)
		2576	if (tmp->type == FORCE && tmp->slaying == name)
		2577	return splay (tmp);
		2578
		2579	return 0;
		2580	}
		2581
		2582	//-GPL
		2583
		2584	void
		2585	object::force_set_timer (int duration)
		2586	{
		2587	this->duration = 1;
		2588	this->speed_left = -1.f;
		2589
		2590	this->set_speed (duration ? 1.f / duration : 0.f);
		2591	}
		2592
		2593	object *
		2594	object::force_add (shstr_tmp name, int duration)
		2595	{
		2596	if (object *force = force_find (name))
		2597	force->destroy ();
		2598
		2599	object *force = get_archetype (FORCE_NAME);
		2600
		2601	force->slaying = name;
		2602	force->force_set_timer (duration);
		2603	force->flag [FLAG_APPLIED] = true;
		2604
		2605	return insert (force);
		2606	}
		2607
		2608	void
		2609	object::play_sound (faceidx sound) const
		2610	{
		2611	if (!sound)
		2612	return;
		2613
		2614	if (is_on_map ())
		2615	map->play_sound (sound, x, y);
		2616	else if (object *pl = in_player ())
		2617	pl->contr->play_sound (sound);
		2618	}
		2619
		2620	void
		2621	object::say_msg (const char *msg) const
		2622	{
		2623	if (is_on_map ())
		2624	map->say_msg (msg, x, y);
		2625	else if (object *pl = in_player ())
		2626	pl->contr->play_sound (sound);
		2627	}
		2628
		2629	void
		2630	object::make_noise ()
		2631	{
		2632	// we do not model noise in the map, so instead put
		2633	// a temporary light into the noise source
		2634	// could use the map instead, but that's less reliable for our
		2635	// goal, which is to make invisibility a bit harder to exploit
		2636
		2637	// currently only works sensibly for players
		2638	if (!is_player ())
		2639	return;
		2640
		2641	// find old force, or create new one
		2642	object *force = force_find (shstr_noise_force);
		2643
		2644	if (force)
		2645	force->speed_left = -1.f; // patch old speed up
		2646	else
		2647	{
		2648	force = archetype::get (shstr_noise_force);
		2649
		2650	force->slaying = shstr_noise_force;
		2651	force->stats.food = 1;
		2652	force->speed_left = -1.f;
		2653
		2654	force->set_speed (1.f / 4.f);
		2655	force->flag [FLAG_IS_USED_UP] = true;
		2656	force->flag [FLAG_APPLIED] = true;
		2657
		2658	insert (force);
		2659	}
		2660	}
		2661
		2662	void object::change_move_type (MoveType mt)
		2663	{
		2664	if (move_type == mt)
		2665	return;
		2666
		2667	if (is_on_map ())
		2668	{
		2669	// we are on the map, so handle move_on/off effects
		2670	remove ();
		2671	move_type = mt;
		2672	map->insert (this, x, y, this);
		2673	}
		2674	else
		2675	move_type = mt;
		2676	}
		2677

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